JP7518419B2 - Air Conditioning System - Google Patents

Description

The present disclosure relates to air conditioning systems .

Conventionally, a ventilation system that exchanges air between the outdoors and indoors and exchanges heat between the indoors and outdoors using multiple heat exchangers, and an air conditioner that performs cooling or heating operation indoors are installed in the same space (see Patent Document 1).

International Publication No. 2018/182022

The air conditioning system described in Patent Document 1 proposes a technique for adjusting the power consumption of the ventilation system and the air conditioner so that the sum of these is small.

The purpose of this disclosure is to provide efficient control of air conditioning.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner.
Provide air conditioning systems.

With this air conditioning system, the first thermal load can be appropriately shared between the ventilation device and the air conditioner, thereby improving energy consumption efficiency.

Regarding the above air conditioning system,
The number of the ventilation devices is plural,
The number of the air conditioners is plural,
The control unit sets the first thermal load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, to be shared among each of the multiple ventilation devices and the multiple air conditioners in accordance with the first capacity and the second capacity.

With this air conditioning system, the first thermal load can be appropriately shared among multiple ventilators and multiple air conditioners, thereby improving energy consumption efficiency.

Regarding the above air conditioning system,
When the control unit sets the ventilation device to share a portion of the first thermal load, it causes the first heat exchanger to function as a condenser or an evaporator to adjust the temperature of the supply air to the indoor space.

With this air conditioning system, the energy consumption efficiency can be improved by performing heat exchange in the first heat exchanger of the ventilation device that shares the first heat load.

Regarding the above air conditioning system,
The control unit stores, as the first capacity, a first minimum thermal load determined as a minimum value that can be set based on the power consumption of the ventilation device among the thermal loads that can be output, and stores, as the second capacity, a second minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output,
When the first thermal load is smaller than the first minimum thermal load and the first thermal load is smaller than the second minimum thermal load, the ventilation device is controlled to repeatedly operate at a capacity corresponding to the minimum thermal load and stop operating, and the air conditioner is set to stop operating.

With this air conditioning system, the ventilation device is given priority for heat exchange, which can improve energy consumption efficiency.

Regarding the above air conditioning system,
The control unit is
Furthermore, when the first thermal load is smaller than the minimum thermal load based on the first capacity and the minimum thermal load based on the second capacity, the operating time of the ventilation device is set so as to perform processing corresponding to the first thermal load per unit time.

This air conditioning system allows the operating time to be set according to the first heat load, thereby improving energy consumption efficiency.

Regarding the above air conditioning system,
The number of the ventilation devices is plural,
The number of the air conditioners is plural,
The control unit is
A minimum thermal load determined as a minimum value that can be set based on the power consumption of the ventilation device among the thermal loads that can be output is stored in advance as the first capacity, and a minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output is stored in advance as the second capacity,
When the first thermal load is smaller than the sum of the minimum thermal loads at the first capacity by the multiple ventilation devices and the first thermal load is smaller than the sum of the minimum thermal loads at the second capacity by the multiple air conditioners, some of the multiple ventilation devices are stopped and the other ventilation devices are operated to operate at a capacity corresponding to the first thermal load.

With this air conditioning system, the energy consumption efficiency can be improved by operating the number of ventilation devices according to the first heat load.

Regarding the above air conditioning system,
The control unit is
A minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output is held in advance as the second capacity,
The air conditioner is caused to maintain operation at the second capacity to process a minimum heat load.

Regarding the above air conditioning system,
When the second heat exchanger is functioning as a condenser, if the input target temperature is higher than the temperature of the outdoor air and lower than the temperature of the air in the indoor space, the control unit suppresses the operation of the compressor, sets the amount of air supplied from the first air flow path to a settable maximum value, and sets the amount of air exhausted from the second air flow path to a settable maximum value.

This air conditioning system can improve energy efficiency by controlling the temperature using outdoor air.

Regarding the above air conditioning system,
The control unit adds up a thermal load generated in the indoor space and a thermal load generated by ventilation between the indoor space and the outdoors, and obtains the sum as the first thermal load.

Regarding the above air conditioning system,
The control unit is
Acquiring a temperature or humidity of the first air after passing through the first heat exchanger via the first air flow path and a temperature or humidity of the second air in the indoor space;
Determining whether the temperature or humidity of the first air and the temperature or humidity of the second air satisfy a predetermined standard;
When it is determined that the predetermined standard is not satisfied, the heat load processing capacity of the ventilation device is reduced and the heat load processing capacity of the air conditioner is increased compared to before the determination.

Regarding the above air conditioning system,
The control unit adds together the thermal load occurring in a first area of the indoor space and corresponding to control to lower the temperature, and the thermal load occurring in a second area of the indoor space and corresponding to control to raise the temperature, and obtains the first thermal load.

This air conditioning system can improve energy efficiency by adjusting the temperature while taking into account the entire area.

Regarding the above air conditioning system,
The control unit is
When it is determined that the first thermal load is a cooling load,
The first heat exchanger functions as the evaporator and the second heat exchanger functions as the condenser;
When it is determined that the first thermal load is a heating load,
The first heat exchanger functions as the condenser, and the second heat exchanger functions as the evaporator.

Regarding the above air conditioning system,
The number of the ventilation devices is plural,
The control unit is
When it is determined that the first heat load is a cooling load, further, among the plurality of ventilation devices, a load share of the ventilation device including the second heat exchanger that takes in air from a low temperature area is set to be larger than a load share of the other ventilation devices;
If it is determined that the first thermal load is a heating load, the load share of the ventilation device including the second heat exchanger that takes in air from a high temperature area among the multiple ventilation devices is set to be larger than the load shares of the other ventilation devices.

This air conditioning system can improve the efficiency of heat exchange and thus the efficiency of energy consumption.

Regarding the above air conditioning system,
The first air flow path has a plurality of air supply ports that supply air to the indoor space,
The second air flow path has a plurality of exhaust ports for taking in air from the indoor space.

Regarding the above air conditioning system,
The control unit further adds up the amount of humidification or dehumidification required for a first area of the indoor space and the amount of humidification or dehumidification required for a second area of the indoor space, and performs temperature control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner based on the addition result.

Regarding the above air conditioning system,
The control unit further performs humidity control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner so that the average humidity of the indoor space becomes the target humidity based on the relative humidity distribution in the indoor space when the control unit receives input of a target humidity for the indoor space.

Regarding the above air conditioning system,
The first air flow path has a plurality of air supply ports that supply air to the indoor space, and has a first air volume adjustment mechanism that adjusts an air volume for each air supply port,
The second air flow path has a plurality of exhaust ports that take in air from the indoor space, and also has a second air volume adjustment mechanism that adjusts the air volume for each exhaust port,
The control unit further controls, for each of the air supply ports, a first air volume adjustment mechanism corresponding to the air supply port, and controls, for each of the air exhaust ports, the second air volume adjustment mechanism corresponding to the air exhaust port.

Regarding the above air conditioning system,
The ventilation device is provided in each of the first area of the indoor space and the second area of the indoor space,
The control unit is configured to obtain a target humidification amount indicating the amount of humidification required for the indoor space, and when humidifying the indoor space at the target humidification amount, compare the air temperature of a first area of the indoor space with the air temperature of a second area of the indoor space, and allocate more humidification to the area with higher temperatures than to the area with lower temperatures.

This air conditioning system can reduce condensation by allocating more humidification to areas with higher temperatures than to areas with lower temperatures.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
the control unit adds an amount of humidification or dehumidification required for a first region of the indoor space and an amount of humidification or dehumidification required for a second region of the indoor space, and performs temperature control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner based on a result of the addition.
Provide air conditioning systems.

This air conditioning system can improve energy efficiency by controlling the temperature according to the sum of the dehumidification and humidification amounts in multiple areas.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit further performs humidity control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner so that the average humidity of the indoor space becomes the target humidity based on a relative humidity distribution in the indoor space when the control unit receives an input of the target humidity in the indoor space.
Provide air conditioning systems.

This air conditioning system can improve energy consumption efficiency by controlling humidity while taking into account humidity distribution.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first air flow path has a plurality of air supply ports that supply air to the indoor space, and has a first air volume adjustment mechanism that adjusts the amount of air supplied to each air supply port,
The second air flow path has a plurality of exhaust ports that take in air from the indoor space, and also has a second air volume adjustment mechanism that adjusts the amount of air taken in for each exhaust port,
The control unit controls, for each of the air intake ports, a first air volume adjustment mechanism corresponding to the air intake port, and controls, for each of the air exhaust ports, the second air volume adjustment mechanism corresponding to the air exhaust port.
Provide air conditioning systems.

According to this air conditioning system, by adjusting the air volume using the first air volume adjustment mechanism and the second air volume adjustment mechanism, it is possible to precisely adjust the temperature within the living space, thereby improving comfort.

Regarding the above air conditioning system,
Further comprising a plurality of detection units for detecting the temperature of the air in the indoor space,
The control unit is
Controlling the first air volume adjustment mechanism corresponding to the air supply port provided near an area where there is a large difference between the temperature indicated by the temperature distribution in the indoor space based on the detection results of the plurality of detection units and the input target temperature so that the amount of air supplied by the other first air volume adjustment mechanisms is increased; or
The second air volume adjustment mechanism corresponding to the exhaust port located near an area where there is a large difference between the temperature indicated by the temperature distribution in the indoor space based on the detection results of the multiple detection units and the target temperature received as input is controlled so that the amount of air taken in is greater than that of the other second air volume adjustment mechanisms.

Regarding the above air conditioning system,
The control unit is
storing first position information indicating a position of each of the air supply ports and second position information indicating a position of each of the air exhaust ports;
The first air volume adjustment mechanism and the second air volume adjustment mechanism are controlled based on the position of the air supply port indicated by the first position information and the position of the air supply port indicated by the second position information.

Regarding the above air conditioning system,
a wireless receiver installed for at least one of the air intake port and the air exhaust port;
A detector capable of wirelessly communicating with the wireless receiver and detecting temperature or humidity,
The control unit is
Identifying a position of the detector based on the signal strength of the detector acquired from the wireless receiver and the first position information or the second position information;
Based on the detection result of the detector, the first air volume adjustment mechanism of the air supply port located near the position of the detector, or the second air volume adjustment mechanism of the air exhaust port located near the position of the detector is controlled.

According to this air conditioning system, by adjusting the air volume using the first air volume adjustment mechanism and the second air volume adjustment mechanism, it is possible to precisely adjust the temperature or humidity, thereby improving comfort.

Regarding the above air conditioning system,
A third air flow path is further provided to transport air from a first opening provided near the air supply port in a fifth area of the indoor space to a second opening provided in a sixth area of the indoor space,
The control unit controls the amount of air flowing through the third air flow path.

With this air conditioning system, air is circulated through the third air flow path, making it easier to adjust the temperature and improving comfort.

Regarding the above air conditioning system,
a heat transfer device including a second compressor, a fourth heat exchanger provided in a seventh region of the indoor space and functioning as a condenser or an evaporator, a fifth heat exchanger provided in an eighth region of the indoor space and functioning as a condenser or an evaporator, and a second refrigerant circuit in which the second compressor, the fourth heat exchanger, and the fifth heat exchanger are connected by a refrigerant piping and a refrigerant flows therethrough,
The control unit causes the fourth heat exchanger to function as either a condenser or an evaporator, and causes the fifth heat exchanger to function as the other of the condenser or the evaporator.

Regarding the above air conditioning system,
Further comprising a ventilation mechanism for exhausting air from the indoor space to the outdoors,
The control unit adjusts the amount of air exhausted by the ventilation device and the amount of air to be exhausted based on the amount of air exhausted by the ventilation mechanism.

This air conditioning system takes the exhaust mechanism into consideration and adjusts the amount of air supplied and the amount of air exhausted, thereby suppressing pressure changes in the indoor space and improving comfort.

Regarding the above air conditioning system,
Each of the plurality of air intake ports is provided in an indoor space different from each of the plurality of exhaust ports,
When the amount of air taken in from at least one of the multiple exhaust ports changes, the control unit adjusts the amount of air taken in from other exhaust ports of the multiple exhaust ports using the second air volume adjustment mechanism so that the total amount of air supplied from the multiple air inlets and the total amount of air taken in from the exhaust port are approximately equal.

This air conditioning system can maintain a stable air pressure in the indoor space by stabilizing the amount of air taken in through multiple exhaust vents.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first heat exchanger is configured to be capable of reducing an evaporation temperature of a flowing refrigerant,
The control unit is configured to set a target temperature and a target humidity, and when the first heat exchanger functions as an evaporator, control the air flowing through the first heat exchanger to dehumidify the air while reducing the evaporation temperature of the first heat exchanger, so as to achieve the target humidity, and control the air conditioner to achieve the target temperature by performing temperature control.
Provide air conditioning systems.

With this air conditioning system, air that has reached the target temperature and target humidity is drawn in, improving comfort.

Regarding the above air conditioning system,
The control unit controls the air supplied to the indoor space after exchanging heat in the second heat exchanger so that the target temperature and the target humidity are set and, when the first heat exchanger is functioning as an evaporator, the air exchanger maintains a temperature corresponding to the target humidity on the curve for 100% relative humidity in a psychrometric chart when exchanging heat with the air flowing in a state in which the evaporation temperature of the first heat exchanger is reduced.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
A control unit that controls the ventilation device,
The control unit is
When the ventilation device performs a humidification operation, the temperature of the air after heat exchange by the first heat exchanger is set so that the predetermined target temperature and target humidity are achieved by an isenthalpic change when water is supplied to the air after heat exchange by the first heat exchanger, and temperature control is performed based on the setting.
Provide air conditioning systems.

With this air conditioning system, air that has reached the target temperature and target humidity is drawn in, improving comfort.

The present disclosure relates to
a first air conditioner including a first heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from an indoor space, exchanges heat with a refrigerant flowing through the first heat exchanger, and exhausts the air to the indoor space;
a second air conditioner including a second heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the second heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the first air conditioner and the second air conditioner,
The control unit is
A first air conditioning capacity including a first minimum thermal load defined as a minimum value of a thermal load that the first air conditioner can output, and a second air conditioning capacity including a second minimum thermal load defined as a minimum value of a thermal load that the second air conditioner can output are stored in a storage unit;
Acquire the temperature of the indoor space;
When the power consumption used for processing the second minimum heat load by the second air conditioner is lower than the power consumption used for processing the first minimum heat load by the first air conditioner, and when a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is lower than the first minimum heat load, a setting is performed to cause the second air conditioner to process the first heat load.
Provide air conditioning systems.

This air conditioning system can improve energy efficiency by using air conditioners that consume less power.

Regarding the above air conditioning system,
The control unit is
The first air conditioning capacity stored in the storage unit includes a first maximum thermal load defined as a maximum value of a thermal load that can be output by the first air conditioner,
The second air conditioning capacity stored in the memory unit includes a second maximum thermal load defined as a maximum value of a thermal load that can be output by the second air conditioner,
When the second maximum thermal load is smaller than the first maximum thermal load, and when the first thermal load calculated based on the temperature of the indoor space is higher than the first minimum thermal load and the first thermal load is smaller than the second maximum thermal load, a setting is made to have the first air conditioner or the second air conditioner, whichever requires less power consumption to process the first thermal load, process the first thermal load.

Regarding the above air conditioning system,
a first casing that accommodates the first heat exchanger and at least a portion of the first air flow path;
a second casing that accommodates the second heat exchanger and at least a portion of the second air flow path;
The first casing and the second casing are separable.

Regarding the above air conditioning system,
a third airflow adjustment mechanism that adjusts an amount of the air taken in from the outdoors and flowing through the first air flow path from the first heat exchanger to the indoor space;
a fourth airflow adjustment mechanism that adjusts the amount of air flowing from the indoor space through the second air flow path to the outdoor space through the second heat exchanger,
The control unit sets the amount of air supplied by the third air volume adjustment mechanism and the amount of air taken in by the fourth air volume adjustment mechanism to be different based on the amount of air supplied or exhausted by other equipment.

This air conditioning system can improve comfort by adjusting the amount of air exhausted and the amount of air taken in throughout the room.

Regarding the above air conditioning system,
The number of the ventilation devices is plural,
Each of the ventilation devices further includes a third airflow rate adjustment mechanism that adjusts an amount of air flowing from the first heat exchanger to the indoor space through the first air flow path, and a fourth airflow rate adjustment mechanism that adjusts an amount of air flowing from the indoor space through the second air flow path to the outdoor space through the second heat exchanger,
The control unit adjusts, in the indoor space, an amount of air supplied by the third air volume adjustment mechanism and an amount of air taken in by the fourth air volume adjustment mechanism so as to be substantially the same.

This air conditioning system can prevent the indoor space from becoming negative pressure, improving comfort.

Regarding the above air conditioning system,
a ventilation device having a compressor during a heat recovery ventilation operation, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit acquires the temperature of the indoor space, and when a first thermal load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is an air conditioning load, and the temperature of the outdoor air is lower than a predetermined temperature, the control unit suppresses the operation of the compressor and sets at least one of the wind direction and the wind volume of the air supplied from the first air flow path so that the air in the indoor space is replaced by the outdoor air by the ventilation device.

This air conditioning system can improve comfort by adjusting the air flow path appropriately.

Regarding the above air conditioning system,
A plurality of air supply ports for supplying air to the indoor space through the first air flow path;
a plurality of exhaust ports for returning air from the indoor space through the second air flow path;
When a first thermal load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is an air conditioning load, and the outdoor air temperature is lower than a predetermined temperature, air is supplied through a plurality of air intake ports arranged on a first direction side of the indoor space, and exhausted through a plurality of air exhaust ports arranged on a second direction side of the indoor space, which is opposite to the first direction side.

This air conditioning system can prevent the air flow path from becoming shorter during ventilation, improving comfort.

The present disclosure relates to
a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air volume adjustment mechanism that supplies air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a first casing that houses the first heat exchanger and the first air volume adjustment mechanism, a second heat exchanger functioning as a condenser or an evaporator, a second air volume adjustment mechanism that exhausts the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a second casing that houses the second heat exchanger and the second air volume adjustment mechanism, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner;
The first casing and the second casing are provided at different heights.
Provide air conditioning systems.

In this air conditioning system, the first casing and the second casing are located at different heights, so airflow is formed in the vertical direction and the temperature distribution can be controlled to be approximately uniform, improving comfort.

The present disclosure relates to
a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air volume adjustment mechanism that supplies air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a first casing that houses the first heat exchanger and the first air volume adjustment mechanism, a second heat exchanger functioning as a condenser or an evaporator, a second air volume adjustment mechanism that exhausts the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a second casing that houses the second heat exchanger and the second air volume adjustment mechanism, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner;
The first casing further includes a first switching mechanism capable of switching an air intake destination between the outdoor space and the indoor space,
The second casing further includes a second switching mechanism capable of switching the destination of the air discharge between the outdoor space and the indoor space.
Provide air conditioning systems.

This air conditioning system can switch between ventilation and indoor circulation depending on the conditions of the indoor space using the first and second switching mechanisms, thereby improving energy conservation.

The present disclosure relates to
a ventilation device including a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit for controlling the
The control unit is
generating a plurality of pieces of operation instruction information for controlling the air conditioner and the ventilation device in order to control air conditioning of the indoor space in which the air conditioner and the ventilation device are installed;
Obtaining a quantity correlated with an air conditioning load of the indoor space;
Calculating, for each piece of operation instruction information, an amount of energy required when the air conditioning load of the indoor space is processed according to the operation instruction information, based on an amount correlated with the air conditioning load of the indoor space;
The calculated energy amount is stored in a storage unit in association with each of the driving instruction information.
outputting the operation instruction information associated with the amount of energy that satisfies a predetermined condition as an operation instruction to the air conditioner or the ventilator;
Provide an air conditioning control device.

The air conditioning control device can improve energy consumption efficiency by issuing driving instructions based on appropriate driving instruction information from multiple driving instruction information.

Regarding the above air conditioning control device,
The specified conditions are conditions for recovering cold heat from exhaust air (flowing high-temperature refrigerant through the exhaust path heat exchanger) when the total heat balance of the indoor space is a temperature increase, and for recovering warm heat from exhaust heat when the total heat balance of the indoor space is a temperature decrease.

Regarding the above air conditioning control device,
The quantity correlated with the air conditioning load of the indoor space includes a quantity related to the amount of air ventilated by the ventilation device.

FIG. 1 is a diagram showing an example of the configuration of a ventilation device, an air conditioner, and a host control device according to the first embodiment. FIG. 2 is a diagram showing the correspondence relationship between power consumption in ventilation device capacity information and a manageable heat load (also referred to as an air conditioning load) according to the first embodiment. FIG. 3 is a diagram illustrating an example of a sharing method by the control unit according to the first embodiment. FIG. 4 is a diagram illustrating an example of a sharing method by the control unit according to the first embodiment. FIG. 5 is a diagram illustrating an example of a sharing method by the control unit according to the first embodiment. FIG. 6 is a diagram showing an example of the arrangement of the ventilation device, the air conditioner, and the higher-level control device according to the first modification of the first embodiment. FIG. 7 shows the heat load detected for each area in the living space. FIG. 8 is a diagram showing an example of a treatment area of a ventilation device and a treatment area of an air conditioner according to the third embodiment. FIG. 9 is a diagram showing an example of a treatment area of a ventilation device and treatment areas of two air conditioners according to the third embodiment. FIG. 10 is a diagram showing an example of areas to be treated by two ventilation devices and an area to be treated by an air conditioner according to the third embodiment. FIG. 11 is a flowchart showing a processing procedure performed by the upper control device according to the third embodiment. FIG. 12 is a diagram illustrating an example of an arrangement of a device group including a host control device according to the fifth embodiment. FIG. 13 is a diagram illustrating an example of the arrangement of a device group in a living space according to the fifth embodiment. FIG. 14 is a diagram illustrating an example of the arrangement of a device group in a living space according to a modified example of the fifth embodiment. FIG. 15 is a diagram illustrating an example of the arrangement of a device group in a living space according to the second modification of the fifth embodiment. FIG. 16 is a diagram illustrating an example of an arrangement of a device group in a living space according to a fifth modification of the fifth embodiment. FIG. 17 is a diagram showing an example of the arrangement of a host control device and two air conditioners according to the sixth embodiment. FIG. 18 is a diagram showing the correspondence relationship between power consumption and air conditioning capacity (capable heat load) in two pieces of air conditioner capacity information. FIG. 19 is a psychrometric chart illustrating the transition until the target temperature and the target humidity are reached by the control of the ventilation device and the air conditioner according to the seventh embodiment. FIG. 20 is a psychrometric chart illustrating the transition until the target temperature and the target humidity are reached by the control of the ventilation device and the air conditioner according to the eighth embodiment. FIG. 21 is a diagram illustrating the configuration of a host control device, an air supply unit, an exhaust unit, and a compressor unit according to the ninth embodiment. FIG. 22 is a diagram illustrating a configuration of a higher-level control device according to the tenth embodiment. FIG. 23 is a diagram showing a configuration example of a ventilation device, an air conditioner, and a higher-level control device according to the eleventh embodiment. FIG. 24 is a diagram showing a configuration example of a ventilation device, an air conditioner, and a higher-level control device according to a modification of the eleventh embodiment. FIG. 25 is a diagram showing a configuration example of a ventilation device, an air conditioner, and a higher-level control device according to the twelfth embodiment. FIG. 26 is a diagram showing an example of switching between the supply air damper and the exhaust air damper according to the twelfth embodiment. FIG. 27 is a diagram showing an example of switching between the supply air damper and the exhaust air damper according to the twelfth embodiment. FIG. 28 is a diagram showing an example of switching between the supply air damper and the exhaust air damper according to the twelfth embodiment. FIG. 29 is a diagram illustrating an example of an arrangement of a device group including a host control device according to the thirteenth embodiment.

The air conditioning system according to this embodiment will be described below with reference to the drawings. Note that the following embodiment is essentially a preferred example and is not intended to limit the scope of this disclosure, its applications, or its uses.

First Embodiment
Fig. 1 is a diagram showing an example of the configuration of a ventilation device, an air conditioner, and a host control device according to the first embodiment. In the example shown in Fig. 1, an air conditioning system includes a ventilation device 1, an air conditioner 2, and a host control device 100 for conditioning an indoor space.

In this embodiment, an example of an indoor space is described that has a living space R11 and an attic space R12, but the indoor space is not limited to the living space R11 and the attic space R12, and may be any space inside a building, and may include, for example, an underfloor space.

The air supply unit 20 is placed on the ceiling between the outside air inlet on the building wall and the indoor air supply outlet, and the exhaust unit 10 is placed on the ceiling between the indoor exhaust intake and the outside air exhaust outlet on the building wall. This shortens the length of the duct and reduces pressure loss.

The living space R11 is, for example, a living room inside an office or a house. The attic space R12 is a space adjacent to and above the living space R11. Since the attic space R12 is located above the living space R11, warm air tends to accumulate therein.

The air conditioner 2 includes an outdoor unit 70 and two air conditioning indoor units 81 and 82. Note that this embodiment does not limit the number of air conditioning indoor units to two, but may be one, or three or more.

The air conditioner 2 is a device that performs a vapor compression refrigeration cycle to cool and heat the living space R11. The air conditioner 2 according to this embodiment is a device that can both cool and heat the living space R11. However, this embodiment is not limited to an air conditioner that can both cool and heat, and may be, for example, a device that can only cool.

The outdoor unit 70 and the two air conditioning indoor units 81, 82 are connected by a communication pipe F5. The communication pipe F5 includes a liquid refrigerant communication pipe and a gas refrigerant communication pipe (not shown). This creates a refrigerant circuit in which refrigerant circulates between the outdoor unit 70 and the two air conditioning indoor units 81, 82. When the refrigerant circulates in the refrigerant circuit, a vapor compression refrigeration cycle is performed in the air conditioner 2.

The outdoor unit 70 is placed outdoors. The outdoor unit 70 includes a heat exchanger (not shown) and a control unit 71, and discharges air that has exchanged heat with the refrigerant flowing through the heat exchanger to the outdoors.

The control unit 71 controls the entire air conditioner 2. The control unit 71 also transmits and receives information to and from the host control device 100. The control unit 71 then performs various controls in response to control signals from the host control device 100.

The air conditioning indoor units 81 and 82 are equipped with a heat exchanger (an example of a third heat exchanger), and suck in air from the living space R11, exchange heat with the refrigerant flowing through the heat exchanger, and blow the air into the living space R11. In this embodiment, the air conditioning indoor units 81 and 82 are ceiling-mounted units that are installed on the ceiling of the living space R11. In particular, the air conditioning indoor units 81 and 82 of this embodiment are ceiling-embedded air conditioning indoor units, and air that has exchanged heat is blown out from the exhaust ports 93A and 93B. In this embodiment, an example in which the exhaust ports 93A and 93B are provided on the ceiling is described, but the positions at which the exhaust ports 93A and 93B are provided are not particularly limited. Note that the air conditioning indoor units 81 and 82 are not limited to the ceiling-embedded type, and may be ceiling-suspended type. In addition, the air conditioning indoor units 81 and 82 may be other than ceiling-mounted type, such as wall-mounted type or floor-standing type.

The ventilation device 1 includes an exhaust unit 10, an air supply unit 20, a compressor unit 50, refrigerant circuits F1, F2, F3, and F4, an air supply flow path P1, and a return air flow path P2.

The ventilation device 1 is a device that supplies the outdoor air that has been taken in to the living space R11, and also exhausts the air that has been taken in from the indoor space (including the living space R11) to the outdoors. In this way, the ventilation device 1 realizes the replacement of air in the living space R11.

Furthermore, the ventilation device 1 according to this embodiment exchanges heat between the exhaust unit 10 and the air supply unit 20, thereby suppressing the temperature difference between the temperature of the air taken in from outdoors and the temperature of the living space R11.

The air supply flow path P1 (an example of a first air flow path) is a flow path for supplying air taken in from outdoors through an air supply unit 20 having a first heat exchanger 22, and then supplying the air through an air supply port 92 to the living space R11. In this embodiment, an example in which the air supply port 92 is provided on the ceiling is described, but the location in which the air supply port 92 is provided is not particularly limited.

The return air flow path P2 (an example of a second air flow path) is a flow path for exhausting air (return air) taken in from an exhaust port 91 in the living space R11 to the outdoors after passing through an exhaust unit 10 having a second heat exchanger 12. In this embodiment, an example in which the exhaust port 91 is provided on the ceiling is described, but the location of the exhaust port 91 is not particularly limited.

The refrigerant circuits F1, F2, F3, and F4 are circuits that connect the compressor unit 50, the first heat exchanger 22 of the air supply unit 20, and the second heat exchanger 12 of the exhaust unit 10 by refrigerant piping and allow refrigerant to flow inside.

The control unit 52 of the compressor unit 50, the control unit 23 of the air supply unit 20, and the control unit 13 of the exhaust unit 10 are connected by a signal line S1 shown by a dotted line in FIG. 1. This allows information to be sent and received between the control unit 52 of the compressor unit 50, the control unit 23 of the air supply unit 20, and the control unit 13 of the exhaust unit 10.

The compressor unit 50 includes a drive motor 51 and a control unit 52, and controls the circulation of the refrigerant in the refrigerant circuits F1, F2, F3, and F4 by compressing one of the refrigerant in the refrigerant circuits F1, F2, F3, and F4. For example, when the second heat exchanger 12 in the exhaust unit 10 functions as an evaporator, the compressor unit 50 compresses the refrigerant in the refrigerant circuit F2 to circulate the refrigerant in the refrigerant circuits F1, F2, F3, and F4.

The drive motor 51 is a motor for rotating (driving) the compressor that compresses the refrigerant.

The control unit 52 controls the configuration within the compressor unit 50. For example, the control unit 52 outputs a command to the drive motor 51 to rotate (drive) the compressor.

The control unit 52 of the compressor unit 50 also transmits the status of the ventilation device 1 received from the control unit 23 of the air supply unit 20 and the control unit 13 of the exhaust unit 10 to the host control device 100. This allows the host control device 100 to realize control according to the status of the ventilation device 1.

The air supply unit 20 includes a fan 21, a first heat exchanger 22, a control unit 23, and a temperature detection unit 24, and takes in outside air (OA) and supplies air (SA) to the living space R11.

The fan 21 functions to supply (SA) the taken-in outside air (OA) to the living space R11.

The first heat exchanger 22 functions as a condenser or an evaporator.

The temperature detection unit 24 detects the surface temperature of the first heat exchanger 22 and the temperature of the refrigerant flowing through the first heat exchanger 22.

Furthermore, the temperature detection unit 24 may detect the outdoor temperature and humidity via a sensor unit (not shown) provided near the air intake port from outdoors. Also, the temperature detection unit 24 may detect the air temperature and humidity in the living space R11 via a sensor unit (not shown) provided near the air supply port 92.

The control unit 23 controls the internal configuration of the air supply unit 20. The control unit 23 performs various controls according to the detection results by the temperature detection unit 24. For example, the control unit 23 adjusts the function of the first heat exchanger 22 as a condenser or evaporator according to the detection results by the temperature detection unit 24.

The control unit 23 transmits the detection results from the temperature detection unit 24 and the like in the air supply unit 20 to the control unit 52 of the compressor unit 50. The control unit 52 of the compressor unit 50 may transmit the detection results to the upper control device 100, or may transmit the current situation recognized based on the detection results to the upper control device 100.

The exhaust unit 10 is equipped with a fan 11, a second heat exchanger 12, a control unit 13, and a temperature detection unit 14, and takes in return air (RA) from the living space R11 and exhausts it outdoors (EA).

Fan 11 functions to exhaust (EA) the return air (RA) taken in from the living space R11 to the outdoors.

The second heat exchanger 12 functions as a condenser or an evaporator.

The temperature detection unit 14 detects the outdoor air temperature, the surface temperature of the second heat exchanger 12, and the temperature of the refrigerant flowing through the second heat exchanger 12.

Furthermore, the temperature detection unit 14 may detect the temperature and humidity of the air in the living space R11 via a sensor unit (not shown) provided near the exhaust port 91.

The control unit 13 controls the internal configuration of the exhaust unit 10. The control unit 13 performs various controls according to the detection results of the temperature detection unit 14. For example, the control unit 13 adjusts the function of the second heat exchanger 12 as a condenser or evaporator according to the detection results of the temperature detection unit 14.

The control unit 13 transmits the detection results from the temperature detection unit 14 and the like in the exhaust unit 10 to the control unit 52 of the compressor unit 50. The control unit 52 of the compressor unit 50 may transmit the detection results to the upper control device 100, or may transmit the current situation recognized based on the detection results to the upper control device 100.

The host control device 100 includes a control unit 101 and a memory unit 102, and performs various controls to coordinate the operation of the ventilation device 1 and the operation of the air conditioner 2.

The memory unit 102 stores ventilation device capacity information 111 and air conditioner capacity information 112. The memory unit 102 is, for example, a non-volatile storage medium from which information can be read and written.

The ventilation device capacity information 111 is capacity information (an example of a first capacity) that shows, as a performance curve, the correlation between the heat load that can be output corresponding to the power consumption of the ventilation device 1. In addition, the ventilation device capacity information 111 may be determined according to the temperature and humidity in the room, and the amount of air to be ventilated.

The ventilation device capacity information 111 includes the minimum heat load L1_min that can be set based on the power consumption of the ventilation device 1 among the heat loads that the ventilation device 1 can output, and also includes the maximum heat load L1_max that can be set by the ventilation device 1 among the heat loads that the ventilation device 1 can output.

The air conditioner capacity information 112 is capacity information (an example of a second capacity) that shows, as a performance curve, the correlation between the heat load that can be output corresponding to the power consumption of the air conditioner 2. The air conditioner capacity information 112 may also be determined according to the settable air volume.

The air conditioner capacity information 112 includes the minimum heat load L2_min that can be set based on the power consumption of the air conditioner 2 among the heat loads that the air conditioner 2 can output, and also includes the maximum heat load L2_max that can be set by the air conditioner 2 among the heat loads that the ventilation device 1 can output.

Figure 2 is a diagram showing the correspondence between power consumption in air conditioner capacity information 112 and the heat load (also called air conditioning load) that can be handled. Line 1201 shows the heat load that the air conditioner can handle according to the power consumption. As shown by line 1201, the higher the power consumption, the higher the heat load (air conditioning load) that can be handled. However, as shown in area 1202, even if the air conditioning load becomes smaller than a predetermined value, the power consumption will not decrease. Therefore, in the air conditioner capacity information 112, the heat load that cannot be reduced further without decreasing the power consumption is set as the minimum heat load L2_min that can be set. In addition, the maximum heat load L2_max that can be set for the air conditioner is also set.

In this embodiment, an example is described in which ventilation device capacity information 111 and air conditioner capacity information 112 are stored in advance, but the correspondence between the power consumption and the heat load may be stored in any format, such as a table format or as an approximate formula.

The control unit 101 acquires the detection results of the temperature detection unit 24 of the air supply unit 20 and the detection results of the temperature detection unit 14 of the exhaust unit 10 via the control unit 52 of the compressor unit 50. This allows the control unit 101 to acquire the temperature in the living space R11, the outdoor temperature, etc. Furthermore, the control unit 101 may acquire the temperature, etc. detected by a remote control or the like that operates the air conditioner 2 via the control unit 71 of the outdoor unit 70.

The control unit 101 calculates a heat load target value (an example of a first heat load) ACL that is set as a control target in the living space R11 based on the temperature of the living space R11, etc. A possible calculation method is, for example, calculation using formula (1).

Heat load target value ACL[W]=α(Tout-Tin)+β+(Ve+Vd)×(Hout-Hin)+(CpB×Vb+CpA×V)×(Tin-Tset)...(1)

Of the parameters shown in formula (1), the indoor temperature Tin, the outdoor temperature Tout, the indoor air enthalpy Hin, and the indoor air enthalpy Hout are values that can be calculated from the detection results of the temperature detection unit 14 or the temperature detection unit 24. In addition, the target temperature Tset is a target temperature set by the user via a remote control or the like for the air conditioner 2.

Of the parameters shown in formula (1), the building thermal capacity CpB, building capacity Vb, air thermal capacity CpA, air volume V, forced ventilation volume Ve, and gap ventilation volume Vd may be predetermined values or values obtained from predetermined learning results.

α is a parameter determined according to the embodiment. β is a parameter determined according to one or more of the heat generated by the equipment, the heat generated inside the lighting, and the heat generated inside the human body, etc., set in the living space R11.

Then, the control unit 101 sets the calculated heat load target value ACL to be shared between the ventilation device 1 and the air conditioner 2 according to the ventilation device capacity information 111 and the air conditioner capacity information 112.

In other words, in formula (1), α(Tout-Tin)+(Ve+Vd)×(Hout-Hin) is the heat load generated by ventilation between the living space R11 and the outdoors, and β+(CpB×Vb+CpA×V)×(Tin-Tset) is the heat load generated in the living space R11. In other words, the control unit 101 according to this embodiment calculates the heat load target value ACL by adding up the heat load generated by ventilation between the living space R11 and the outdoors and the heat load generated in the living space R11. In this embodiment, power consumption can be reduced by appropriately sharing the sum of the heat load of the living space R11 and the heat load generated by ventilation.

In addition, when the control unit 101 sets the ventilation device 1 to share part of the heat load target value ACL, it causes the first heat exchanger 22 to function as a condenser or evaporator to adjust the temperature of the supply air to the living space R11.

For example, the control unit 101 instructs the control unit 52 of the compressor unit 50 on the compressor rotation speed so that the actual measured value of the air temperature detected after passing through the first heat exchanger 22 becomes the target temperature Tset. At this time, feedback control may be performed so that the actual measured value, which changes over time, tracks the target temperature Tset.

Then, the control unit 101 subtracts the thermal load required by the ventilation device 1 for the actual measurement value to reach the target temperature Tset from the thermal load target value ACL, and identifies the remaining thermal load as the thermal load to be processed by the air conditioner 2. The control unit 101 then calculates the operating conditions required for the air conditioner 2 to process the identified thermal load, and instructs the air conditioner 2 of the identified operating conditions.

This allows the heat load target value ACL to be shared between the ventilation device 1 and the air conditioner 2.

In this embodiment, various sharing methods other than the above-mentioned may be used.

If the heat load target value ACL is smaller than the minimum heat load L1_min of the ventilation device 1 stored in the ventilation device capacity information 111, and if the heat load target value ACL is smaller than the minimum heat load L2_min of the air conditioner 2 stored in the air conditioner capacity information 112, the control unit 101 stops operation of the air conditioner 2. Then, the control unit 101 controls the ventilation device 1 to repeatedly operate at a capacity corresponding to the minimum heat load and stop operation.

Furthermore, the control unit 101 sets the operation time and stop time per unit time so that the average value of the heat load processed per unit time corresponds to the heat load target value ACL. Specifically, the control unit 101 sets the operation time and stop time so that the heat load target value ACL = minimum heat load L1_min x (operation time / (operation time + stop time)). This makes it possible to realize optimal control that satisfies the heat load target value ACL.

In other words, in this embodiment, control can be performed to reach the heat load target value ACL by alternately repeating operation and stoppage. The fans 11 and 21 of the ventilation device 1 are always running to maintain ventilation of the living space R11. The above-mentioned control can prevent the air conditioner 2 from operating at a low load, thereby realizing a reduction in power consumption.

The control unit 101 according to this embodiment may share the heat load according to the operation patterns shown below. In the example shown in Figs. 3 to 5, a case is described in which the heat load processing efficiency of the ventilation device 1 is higher than the heat load processing efficiency of the air conditioner 2 (the power consumption is smaller when processing the same load).

Figure 3 is a diagram showing an example of a sharing method by the control unit 101. As shown in Figure 3, if it is determined that the thermal load target value ACL (1303) is equal to or greater than the sum of the minimum thermal load L2_min (1301) of the air conditioner 2 and the maximum thermal load L1_max (1302) of the ventilation device 1, the maximum thermal load L1_max (1302) is assigned to the ventilation device 1, and the difference (1304) obtained by subtracting the maximum thermal load L1_max of the ventilation device 1 from the thermal load target value ACL is assigned to the air conditioner 2.

Figure 4 is a diagram showing an example of a sharing method by the control unit 101. As shown in Figure 4, if it is determined that the heat load target value ACL (1402) is smaller than the maximum heat load L1_max (1401) of the ventilation device 1 and is equal to or greater than the minimum heat load L1_min (1403) of the ventilation device 1, the entire heat load 1404 corresponding to the heat load target value ACL (1402) is assigned to the ventilation device 1.

Figure 5 is a diagram showing an example of a sharing method by the control unit 101. As shown in Figure 5, if it is determined that the thermal load target value ACL (1503) is smaller than the sum of the maximum thermal load L1_max (1502) of the ventilation device 1 and the minimum thermal load L2_min (1501) of the air conditioner 2, and is equal to or greater than the maximum thermal load L1_max (1504) of the ventilation device 1, the minimum thermal load L2_min is assigned to the air conditioner 2, and the difference (1505) obtained by subtracting the minimum thermal load L2_min of the air conditioner 2 from the thermal load target value ACL is assigned to the ventilation device 1.

In the example shown in Figures 3 to 5, the load efficiency can be improved by sharing the load processing so that a large amount of the load is processed by the ventilation device 1.

When the heat load target value ACL (1503) is greater than the maximum heat load L1_max of the ventilation device 1, for example, the control unit 101 causes the air conditioner 2 to maintain operation corresponding to the minimum heat load L2_min. This makes it possible to prevent frequent thermostat on/off of the air conditioner 2 during linkage.

In this embodiment, after the heat load target value ACL is shared between the ventilation device 1 and the air conditioner 2 and operation control is started, the ratio of sharing may be changed according to changes in the situation. For example, when the ventilation device 1 is performing cooling operation, the air cooled by the first heat exchanger 22 may cool the air in the room in which the first heat exchanger 22 is installed through the first heat exchanger 22, which may cause condensation on the surface of the air supply unit 20. In such a case, an adjustment is made so that part of the sharing of the ventilation device 1 is allocated to the air conditioner 2.

The control unit 101 receives the air temperature measured by a sensor unit provided downstream of the first heat exchanger 22 from the air supply unit 20 via the control unit 52 of the compressor unit 50.

The control unit 101 receives temperature and humidity data for the living space R11 from the control unit 71 of the outdoor unit 70. The temperature and humidity data for the living space R11 is, for example, data detected by a remote control for the air conditioner 2.

The control unit 101 then calculates the condensation temperature based on the temperature and humidity data of the living space R11.

Then, the control unit 101 determines whether the temperature of the air downstream of the first heat exchanger 22 from the air supply unit 20 is equal to or higher than the condensation temperature (an example of a predetermined standard).

When the control unit 101 determines that the temperature of the air downstream of the first heat exchanger 22 is lower than the condensation temperature (one example of a predetermined standard) (when it determines that the predetermined standard is not met), it reallocates the load to reduce the heat load processing capacity of the ventilation device 1 and increase the heat load processing capacity of the air conditioner 2 compared to before the determination.

In this embodiment, the control unit 101 of the host control device 100 performs the above-mentioned control, so that the heat load can be appropriately shared between the ventilation device and the air conditioner, thereby improving the energy consumption efficiency.

(Modification 1 of the first embodiment)
In the above embodiment, an example has been described in which one air supply port and one exhaust port are provided for each of the air supply unit 20 and the exhaust unit 10. However, this embodiment is not limited to the above-mentioned configuration. Therefore, in Modification 1 of the first embodiment, an example in which a plurality of exhaust ports are provided for each of the air supply unit 20 and the exhaust unit 10 will be described.

Figure 6 shows an example of the arrangement of the ventilation device, air conditioner, and upper control device according to this modified example. In the example shown in Figure 6, the same reference numerals are assigned to the same configuration as in the above-described embodiment, and the description is omitted.

In this modified example, the air conditioner 2A is provided with three air conditioning indoor units 81, 82, and 83 in the outdoor unit 70. The control of the air conditioner 2A is the same as that of the air conditioner 2 in the above-described embodiment. The air conditioner 2A and the three air conditioning indoor units 81, 82, and 83 are connected by a communication pipe F101.

The ventilation device 1A is provided with a compressor unit 50, an exhaust unit 10, and an air supply unit 20. The compressor unit 50, the exhaust unit 10, and the air supply unit 20 are connected by a communication pipe F102.

The exhaust unit 10 is connected to multiple exhaust ports 93A-93D via an exhaust duct P102 (an example of a second air flow path).

The air supply unit 20 is connected to multiple air supply ports 92A-92D via an air supply duct P101 (an example of a first air flow path).

As a result, multiple air intakes 92A-92D and exhausts 93A-93D are arranged in the living space R51, allowing air to circulate within the living space R51, improving ventilation efficiency.

In addition, inside the air supply duct P101, an opening/closing damper (not shown) (an example of a first air volume adjustment mechanism) may be provided for each branch flow path that is divided into air supply ports 92A-92D. The opening/closing damper adjusts the amount of air supplied to each of the air supply ports 92A-92D, for example, according to control from the control unit 23 of the air supply unit 20.

Similarly, inside the exhaust duct P102, an opening/closing damper (not shown) (an example of a first air volume adjustment mechanism) may be provided for each branch flow path that is divided into exhaust ports 93A-93D. The opening/closing damper adjusts the amount of air returned to each of the exhaust ports 93A-93D, for example, according to control from the control unit 13 of the exhaust unit 10.

For example, the host control device 100 can output a control signal indicating the opening and closing of the dampers provided at the air intake ports 92A-92D or the exhaust ports 93A-93D to the control unit 23 of the air supply unit 20 and the control unit 13 of the exhaust unit 10 according to the temperature distribution, humidity distribution, or ventilation conditions within the living space R51, thereby finely adjusting the blowing air volume, thereby improving the comfort of the living space R51 and reducing power consumption.

In addition, this modified example has been described as an example in which an opening/closing damper is provided for each of the air intakes 92A-92D and exhausts 93A-93D, but an air volume adjustment mechanism other than an opening/closing damper may be provided. For example, a blower fan capable of adjusting the air volume may be attached to each of the air intakes 92A-92D and exhausts 93A-93D.

Second Embodiment
In the first embodiment, an example in which one ventilation device 1 and one air conditioner 2 are provided has been described. However, the above-described embodiment is not limited to the example in which one ventilation device 1 and one air conditioner 2 are provided. Therefore, in the second embodiment, an example in which a plurality of ventilation devices 1 and a plurality of air conditioners 2 are provided will be described. Note that the rest is the same as the above-described embodiment, and description thereof will be omitted.

In this embodiment, the number of ventilation devices 1 provided is multiple (e.g., two). Also, the number of air conditioners 2 provided is multiple (e.g., two).

Then, similar to the embodiment described above, the control unit 101 sets the load target value that needs to be adjusted in the living space R11, which is calculated based on the temperature of the living space R11, to be shared among the multiple ventilators 1 and the multiple air conditioners 2.

The control unit 101 calculates the total power consumption Wtotal using the following formula (2):

Of the variables shown in formula (2), n1 is the number of ventilators 1, and n2 is the number of air conditioners 2. The power consumption Wo _i of the ventilator 1 (power consumption of the i-th ventilator 1) is defined as Function1 (Vs, Vr, Tset, Ts, Tr, Lfo _i ), and the power consumption Wa _i of the air conditioner 2 (power consumption of the i-th air conditioner 2) is defined as Function2 (Tset, Ts, Tr, Lfa _i ). Note that Function1 and Function2 are determined according to the embodiment as functions for calculating power consumption.

The parameters shown in formula (2) are the amount of air supplied by the ventilation device 1 Vs, the amount of air exhausted by the ventilation device 1 Vr, the outdoor temperature Ts, the temperature Tr of the living space R11, and the target temperature Tset. Note that the ventilation device load factor Lfo _i is calculated as Cfo _i /Comax [W], and the air conditioner load factor Lfa _i is calculated as Cfa _i /Carmax [W].

The ventilation device capacity Cfo _i indicates the share of the thermal load allocated to the i-th ventilation device 1 , and the air conditioning capacity Cfa _i indicates the share of the thermal load allocated to the i-th air conditioner 2 .

The maximum capacity (maximum heat load that can be set) of the ventilation device 1 is Comax [W], and the maximum capacity (maximum heat load that can be set) of the air conditioner 2 is Carmax [W].

In addition, it is necessary to satisfy the following: ventilation device capacity Cfo _i > minimum capacity of the ventilation device (minimum settable heat load) Comin [W], and air conditioner capacity Cfa _i > minimum capacity of the air conditioner (minimum settable heat load) Camin [W].

The maximum capacity (maximum heat load that can be set) Comax [W] of the ventilation device 1, the maximum capacity (maximum heat load that can be set) Carmax [W] of the air conditioner 2, the minimum capacity (minimum heat load that can be set) Comin [W] of the ventilation device, and the minimum capacity (minimum heat load that can be set) Camin [W] of the air conditioner may be stored in advance in the memory unit as ventilation device capacity information 111 and air conditioner capacity information 112, or may be calculated based on the learning results.

The control unit 101 calculates the ventilation device load rate Lfo and the air conditioner load rate Lfa that minimize the total power consumption Wtotal. In doing so, the condition of the following formula (3) is satisfied. This identifies the share of the ventilation device 1 and the air conditioner 2.

The relationship between the heat load target value ACL and the ventilation device capacity Cfo _i of the ventilator 1 (ventilator capacity of the i-th ventilator 1) and the air conditioner's air conditioning capacity Cfa _i (air conditioning capacity of the i-th air conditioner 2) can be expressed by equation (3). By the above-mentioned calculation, the heat load target value ACL is distributed to the ventilator 1 and the air conditioner 2 according to the ventilation device load factor Lfo _i and the air conditioner load factor Lfa _i .

In addition, the control unit 101 stops the operation of the multiple air conditioners 2 when the thermal load target value ACL (an example of the first thermal load) [W] calculated by the above-mentioned formula (1) is smaller than the total value of the minimum capacity Comin [W] of the multiple (e.g., two) ventilation devices 1 installed in this embodiment and the total value of the minimum capacity Camin [W] of the multiple (e.g., two) air conditioners 2 installed in this embodiment.

Then, the control unit 101 stops some (e.g., one unit) of the multiple ventilation devices 1 and operates the other ventilation devices 1 (e.g., one unit). If the heat load target value ACL>minimum capacity per unit Comin [W], the control unit 101 can achieve the target by instructing only one ventilation device 1 to operate the heat load corresponding to the heat load target value ACL.

Fans 11 and 21 of ventilation device 1 are kept operating at all times.

In addition, when the heat load target value ACL<the minimum capacity per unit Comin [W], similarly to the first embodiment, the control unit 101 instructs one ventilation device 1 to repeatedly operate and stop at the minimum capacity in accordance with the heat load target value ACL. This makes it possible to avoid low-load operation of the air conditioner 2.

Furthermore, when the living space is large, the heat load may differ depending on the area. Figure 7 shows the heat load detected for each area. In the example shown in Figure 7, two ventilation devices 1A, 1B and two air conditioners 2A, 2B are provided. The upper control device 100 controls the two ventilation devices 1A, 1B and the two air conditioners 2A, 2B.

The ventilation device 1A is composed of a compressor unit 50A, an air supply unit 20A, and an exhaust unit 10A. The ventilation device 1B is composed of a compressor unit 50B, an air supply unit 20B, and an exhaust unit 10B.

Air conditioner 2A is composed of an outdoor unit 70A and an indoor air conditioner unit 81A. Air conditioner 2B is composed of an outdoor unit 70B and an indoor air conditioner unit 81B.

In the example shown in FIG. 7, a cooling load (a heat load that needs to be removed by controlling the temperature to lower in order to reach the target temperature) occurs in region R101A of the living space R101, and a heating load (a heat load that needs to be applied by controlling the temperature to raise in order to reach the target temperature) occurs in region R101B.

In such a case, if cooling is performed using the ventilation device 1A and air conditioner 2A in area R101A, and heating is performed using the ventilation device 1B and air conditioner 2B in area R101B, power consumption will be high.

Therefore, the control unit 101 according to this embodiment adds up all the heat load target values occurring in each area of the living space R101 (for example, the cooling load in area R101A and the heating load in area R101B), and distributes the total heat load target value to the two ventilators 1A and 1B and the two air conditioners 2A and 2B.

As a result, even if cooling and heating loads are mixed in the same air conditioning zone (e.g., living space R101), the heat load is shared based on the sum of the cooling and heating loads, improving power consumption efficiency.

In addition, the control of ventilation devices 1A and 1B differs depending on whether the total heat load target value is a cooling load or a heating load.

In other words, when the total heat load target value is a cooling load, the control unit 101 according to this embodiment causes the first heat exchangers 22 of the air supply units 20A and 20B of the multiple ventilation devices 1A and 1B to function as evaporators, and the second heat exchangers 12 of the exhaust units 10A and 10B to function as condensers.

On the other hand, when the total heat load target value is a heating load, the control unit 101 according to this embodiment causes the first heat exchangers 22 of the air supply units 20A and 20B of the multiple ventilation devices 1A and 1B to function as condensers, and the second heat exchangers 12 of the exhaust units 10A and 10B to function as evaporators.

In addition, the control unit 101 varies the distribution of heat load depending on the locations where the ventilation devices 1A and 1B are installed.

When the control unit 101 determines that the total heat load target value (an example of the first heat load) is a cooling load, it sets the load share of the ventilation device including the second heat exchanger that takes in air from a low temperature area among the multiple ventilation devices 1A, 1B to be greater than the load shares of the other ventilation devices.

In the example shown in FIG. 7, the share of the heat load of the ventilation device 1B installed in the heating load area R101B (the area where heating is required, in other words the area where the temperature is low) is set to be larger than that of the ventilation device 1A. In other words, since the temperature of the exhaust air is low, the heat dissipation efficiency can be increased.

When the control unit 101 determines that the total heat load target value (an example of the first heat load) is a heating load, it sets the load share of the ventilation device 1A, which includes a second heat exchanger that takes in air from a high temperature area, among the multiple ventilation devices 1A and 1B, to be greater than the load share of the other ventilation device 1B.

In the example shown in FIG. 7, the share of the heat load of the ventilation device 1A installed in the cooling load area R101A (area where cooling is required, in other words, area where the temperature is high) is set to be larger than that of the ventilation device 1B. In other words, since the temperature of the exhaust air is high, the heat dissipation efficiency can be increased.

Third Embodiment
There are other arrangements of the ventilation device and the air conditioner besides the above-mentioned embodiment. Therefore, in the third embodiment, various arrangements of the ventilation device and the air conditioner will be described. Note that in the third embodiment, an example is shown in which a host control device 100, a ventilation device 1B, and an air conditioner 2B are installed. The internal configurations of the host control device 100, the ventilation device, and the air conditioner are the same as those in the above-mentioned embodiment, and description thereof will be omitted.

Figure 8 is a diagram showing an example of the treated area of the ventilation device 1B and the treated area of the air conditioner 2B according to the third embodiment. In the example shown in Figure 8, the living space R201 is divided into 16 areas, 4 x 4.

The ventilation device 1B treats the area R211 corresponding to the living space R201 as its treated area, and the air conditioner 2B treats 16 areas R211A to R211P corresponding to the living space R201 as its treated area.

Figure 9 is a diagram showing an example of the treated area of the ventilation device 1B and the treated areas of two air conditioners 2B. The treated area of the ventilation device 1B is area R211, which corresponds to the living space R201. One of the two air conditioners 2B has eight areas R211A-R211H as its treated area, and the other has eight areas R211I-R211P as its treated area.

Figure 10 shows an example of the treated areas of two ventilation devices 1B and the treated area of an air conditioner 2B.

One of the two ventilation devices 1B has area R211Q as its treated area, and the other has area R211R as its treated area. Air conditioner 2B has 16 areas R211A to R211P as its treated areas.

The user can set the linkage in the upper control device 100 for the correspondence relationship between the treated areas of the ventilation device 1B and the air conditioner 2B shown in Figures 8 to 10, and the upper control device 100 can perform linkage control.

To set up the interlocking, the user uses a controller (not shown) or the like to associate the heat sources of the air conditioners and ventilators that will perform the interlocking control for each treated area based on the input position information of the treated area, etc. This allows the host control device 100 to realize interlocking control of the ventilator 1B and the air conditioner 2B.

In this embodiment, when the same zone, such as the living space R201, is completely covered by the area to be treated by the air conditioner 2B or the area to be treated by the ventilation device 1A, which are the same heat source, interlocking control is possible. Note that this embodiment is an example in which the minimum number of ventilation devices 1B or air conditioners 2B is one, and the maximum number is two, but this is not limited to this embodiment.

Next, the processing procedure performed by the host control device 100 according to this embodiment will be described. FIG. 11 is a flowchart showing the processing procedure performed by the host control device 100 according to this embodiment.

First, the host control device 100 calculates the load target value in the living space R201 (S2101). The method for calculating the load target value is the same as in the above-described embodiment, so the explanation is omitted.

Next, the upper control device 100 calculates the ventilation device load rate and the air conditioner load rate (S2102). The specific calculation method for the ventilation device load rate and the air conditioner load rate will be described later.

Next, the upper control device 100 transmits the target processing load, which is the load target value allocated to each device based on the ventilation device load rate and the air conditioner load rate, to the ventilation device 1B and the air conditioner 2B (S2103).

Then, the ventilation device 1B performs control with a processing capacity corresponding to the target processing load (S2104).

When the air conditioner 2B is controlling the temperature, it controls it at a processing capacity corresponding to the target processing load, and when the temperature control is stopped, it maintains the temperature control stopped state (S2105).

Then, the upper control device 100 determines whether the specified conditions are met (S2106).

The specified condition is when the average value over a specified period (e.g., 5 minutes) of two or more indoor units connected to an outdoor unit that has stopped temperature control meets the following: "Temperature of the intake air < target temperature - A (e.g., 1.0 degree)" or "Temperature of the intake air > target temperature - B (e.g., 1.0 degree)."

Another specified condition is when the accumulated value for a certain period of time (e.g., 5 minutes) of an indoor unit connected to an outdoor unit that is operating temperature control satisfies "accumulated value of processing capacity for a certain period of time - accumulated value of target processing load for a certain period of time) > C (e.g., 0.2) x (accumulated value of target processing load for a certain period of time).

In other words, if the host control device 100 determines that a certain condition indicating a large deviation from the current situation has been met (S2106: Yes), it repeats the process from S2101.

On the other hand, if the upper control device 100 determines that the specified condition is not met (S2106: No), it continues the current processing and performs the determination of S2106 again in 5 minutes.

Next, a method for calculating the sharing ratio according to this embodiment will be described. In this embodiment, instead of the method shown in the second embodiment, the ventilation device 1B may be fixed to a target capacity, and the air conditioner 2B may calculate the sharing ratio using the method shown below.

First, if the intake temperature of air conditioner 2B is less than the target temperature - A (e.g., 1.0 degrees), it is defined as a heating load, and if the intake temperature of air conditioner 2B is greater than the target temperature + B (e.g., 1.0 degrees), it is defined as a cooling load. Note that the target temperature is the temperature set by a remote control, etc.

In a modified example, if the heat source of either the ventilation device 1B or the air conditioner 2B is limited to one system or less and the maximum is limited to two systems, the following combinations are possible.

In other words, in this modified example, there are two combinations: 1) a combination of two ventilation devices and one air conditioner; and 2) a combination of one ventilation device and two air conditioners.

1) In the case of two ventilation devices/one air conditioner, the load factor of the two ventilation devices is assumed to be the same and calculations are performed. In this case, calculations can be performed using the same calculations as in the first embodiment, so the calculation load can be reduced.

2) When a combination of one ventilation unit and two air conditioners is used, the following three operating situations are possible:

Situation 1 may be the case where the first air conditioner 2B_1 (operating), the second air conditioner 2B_2 (operating), and the ventilation system 1B (operating). In such a case, the load rates of the first air conditioner 2B_1 and the second air conditioner 2B_2 are matched. Then, the ventilation system load rate and the air conditioner load rate are calculated. Matching the load rates can reduce the computational load.

In situation 2, there is a case where the first air conditioner 2B_1 (operating), the second air conditioner 2B_2 (stopped), and the ventilation device 1B (operating). In this case, the load is shared between the first air conditioner 2B_1 (operating) and the ventilation device 1B (operating). In this case, the load can be shared in the same manner as in the first embodiment.

In situation 3, there is a case where the first air conditioner 2B_1 (stopped), the second air conditioner 2B_2 (operating), and the ventilation device 1B (operating). In this case, the load is shared between the second air conditioner 2B_2 (operating) and the ventilation device 1B (operating). In this case, the load can be shared in the same manner as in the first embodiment.

If the load rate of the first air conditioner 2B_1 and the second air conditioner 2B_2 cannot be set to 0 (based on the state of the indoor units), processing of situations 2 and 3 is not performed. For example, if there are N or more indoor units (e.g., two) connected to the same outdoor unit, the load rate of the air conditioner cannot be set to "0".

Note that for heat sources (e.g. outdoor air conditioners) whose previously calculated load rate was "0" and whose load rate can be set to "0" will have their load rate set to "0" as long as the capacity is not insufficient. In other words, in this embodiment, the thermo-off time is controlled to be longer.

By setting the load rate and load sharing according to the above definitions for each situation, the computational load when calculating the load rate using the procedure shown in the above embodiment can be reduced.

Fourth Embodiment
In the above-described embodiment, the case where the temperature is adjusted by the cooperative control by the upper control device 100 has been described. However, the above-described embodiment is not limited to the control of the temperature. Therefore, in the fourth embodiment, the adjustment of the humidity will be described.

For example, in the living space R101 shown in FIG. 7, the host control device 100 obtains the amount of humidification or dehumidification required in area R101A (an example of a first area). Similarly, the host control device 100 obtains the amount of humidification or dehumidification required in area R101B (an example of a second area).

Then, the upper control device 100 adds up the amount of humidification or dehumidification required in region R101A (an example of the first region) and the amount of humidification or dehumidification required in region R101B (an example of the second region), and performs temperature (e.g., refrigerant evaporation temperature) control using the first heat exchanger 22 of the ventilation device 1B and the heat exchanger (an example of the third heat exchanger) of the air conditioner 2B based on the total amount of humidification or dehumidification. In addition, if humidification is required, water supply control may be performed for the air supply unit 20 or the air conditioner 2B.

In this embodiment, temperature control is performed based on the sum of the dehumidification and humidification amounts calculated for each area, improving power consumption efficiency.

(Modification 1 of the fourth embodiment)
The host control device 100 may further control the humidity in consideration of the humidity distribution in the living space R101. In this embodiment, the host control device 100 receives an input of a target humidity from a remote control or the like of the air conditioner 2B. The air conditioner 2B transmits the input target humidity to the host control device 100.

In this embodiment, the humidity at each position is calculated from a combination of absolute humidity and relative humidity distribution.

In the same air-conditioning zone, as shown in Figure 7, moisture and air circulate and diffuse, and moisture diffuses due to differences in absolute humidity concentration. The absolute humidity is almost uniform, but if there is a temperature distribution within the air-conditioning zone, a relative humidity distribution occurs according to the temperature distribution. Particularly in winter, the indoor temperature near the window drops, so the relative humidity increases and condensation occurs on the window surface.

Therefore, the upper control device 100 calculates the relative humidity distribution in the living space R101 based on the temperature distribution. In this embodiment, any method may be used to calculate the relative humidity distribution. For example, the relative humidity distribution in the living space R101 may be calculated from the detection results of temperature detection units (not shown) provided in each of the exhaust units 10A, 10B, the air supply units 20A, 20B, and the air conditioning indoor units 81A, 81B in the living space R101.

In a living space R101 with such a temperature distribution, we will explain the case where a user controls the temperature and humidity in the room using a single remote control.

When the remote control for the air conditioner 2B receives input of the target temperature and target humidity for the room from the user, the air conditioner 2B transmits the target temperature and target humidity for the room that were received as input to the upper control device 100.

The host control device 100 then calculates the average humidity from the temperatures measured by the remote control and each device, and the relative humidity distribution. The average humidity is the humidity assumed to be uniform within the living space R101.

The host control device 100 then calculates the required amount of humidification or dehumidification as an overall average from the difference between the calculated average humidity and the input target humidity.

The host control device 100 then performs humidity control using at least one of the air supply unit 20 of the ventilation device 1B and the heat exchanger (an example of a third heat exchanger) of the air conditioner 2B to humidify according to the calculated humidification amount or dehumidify according to the dehumidification amount so that the average humidity of the indoor space becomes the input target humidity. Note that if humidification is required, the host control device 100 may also perform water supply control for the air supply unit 20 of the ventilation device 1B.

In addition, if multiple ventilation devices are provided and the host control device 100 is aware of the location information of the air supply units 20 of the ventilation devices, control may be performed based on the location. For example, when performing dehumidification or humidification in the above-mentioned process, the host control device 100 may perform control such that low humidity air is blown out from the air supply unit near the window, and high humidity air is blown out from the air supply unit 20 farther from the window. This makes it possible to suppress condensation on the window surface and also suppress humidification moisture loss due to condensation. Note that the same control is performed when air conditioner 2B is used, so a description will be omitted.

Fifth Embodiment
Fig. 12 is a diagram illustrating an example of the arrangement of a group of devices including a host control device 300 according to the fifth embodiment. The example shown in Fig. 12 includes at least living spaces R301, R302, and R303, restrooms R304 and R305, and a pipe shaft R306.

Restrooms R304 and R305 are provided with ventilation fans 395 and 396, respectively. When the ventilation fans 395 and 396 are operating, the air in restrooms R304 and R305 is exhausted to the outdoors. This control is performed by the upper control device 300.

The living spaces R301 and R302 are equipped with ventilation equipment and air conditioners (not shown).

A ventilation device 1C and an air conditioner 2C are provided in the living space R303.

The air conditioner 2C also includes one outdoor unit 370 and three air conditioning indoor units 381, 382, and 383. The one outdoor unit 370 and the three air conditioning indoor units 381 to 383 are connected by interconnecting piping.

The outdoor unit 370 is also connected to the host control device 300 via a signal line. This allows one outdoor unit 370 to perform air conditioning control according to the control of the host control device 300.

The ventilation device 1C is a ventilation device provided in the living space R303, and includes a compressor unit 350, an air supply unit 320, and an exhaust unit 310.

The air supply unit 320 supplies air (SA) through four air supply ports 392A-392D. The exhaust unit 310 returns air (RA) through four exhaust ports 391A-391D.

The compressor unit 350, the air supply unit 320, and the exhaust unit 310 are connected by a communication pipe. The communication pipe includes multiple refrigerant communication pipes. This allows the refrigerant to circulate between the compressor unit 350, the air supply unit 320, and the exhaust unit 310.

The compressor unit 350, the air supply unit 320, and the exhaust unit 310 are connected by signal lines (not shown). This allows information to be sent and received between the units. The internal configurations of the compressor unit 350, the air supply unit 320, and the exhaust unit 310 are similar to those of the compressor unit 50, the air supply unit 20, and the exhaust unit 10 shown in FIG. 1, so a description thereof will be omitted.

The compressor unit 350 is located in the pipe shaft R306.

The host control device 300 is connected to the compressor unit 350 via a signal line. This allows the host control device 300 to recognize the status of each device in the ventilation device 1C and control each device.

Figure 13 is a diagram illustrating an example of the arrangement of a group of devices in a living space R303 according to the fifth embodiment. In the example shown in Figure 13, an air conditioner 2C and a ventilation device 1C are arranged.

Air conditioning indoor units 381, 382, and 383 included in air conditioner 2C are arranged in a row near the center of living space R303.

The four air supply ports 392A to 392D, which are the destinations of the air supply unit 320, are located below (e.g., on the south side of) the air conditioning indoor units 381, 382, and 383 in Figure 13.

The four air intakes 392A to 392D each have a built-in fan (an example of a first air volume adjustment mechanism) that adjusts the amount of air supplied to each intake. The fan is controlled by the upper control device 300.

The four exhaust ports 391A to 391D, which are the air intake ports of the exhaust unit 310, are located above (e.g., on the north side of) the air conditioning indoor units 381, 382, and 383 in FIG. 13.

The four exhaust ports 391A to 391D each have a built-in opening/closing damper (an example of a second air volume adjustment mechanism) that adjusts the amount of air taken in for each exhaust port. The opening/closing damper is controlled by the upper control device 300.

In other words, the host control device 300 according to this embodiment controls the corresponding fans for each of the four air intakes 392A-392D and the corresponding opening/closing dampers for each of the four exhausts 391A-391D according to the detection results from the living space R303.

In this embodiment, the amount of air blown out in the living space R303 can be finely adjusted, improving comfort and reducing the amount of energy used.

In this embodiment, the upper control device 300 performs the following in the same manner as in the above-described embodiment:
The host controller 300 calculates a heat load target value ACL. Then, the host controller 300 divides the heat load target value ACL between the air conditioner 2C and the ventilation device 1C.

Then, the host control device 300 causes the air conditioner 2C and the ventilation device 1C to perform processing corresponding to the heat load shared by them, and calculates and sets the supply air volume of the four air intakes 392A-392D and the exhaust air volume of the four exhaust outlets 391A-391D so that the ventilation airflow is in an ideal state within the living space R303. The supply air volume and exhaust air volume that will result in the ideal ventilation airflow are determined according to the embodiment, such as the relative positions of the four air intakes 392A-392D and the four exhaust outlets 391A-391D, and will not be described here.

For example, the amount of air (airflow) blown out from the four air intakes 392A-392D is controlled so that the total amount is constant regardless of the distribution, and the amount of air (airflow) taken in from the four exhausts 391A-391D is similarly controlled so that the total amount is constant.

Furthermore, the upper control device 300 controls the ratio between the total amount of air blown out from the four air intakes 392A-392D and the total amount of air taken in from the four exhausts 391A-391D so that it is constant.

The host control device 300 according to this embodiment stores in the memory unit 102 first position information indicating the position of each of the four air intake ports 392A-392D and second position information indicating the position of each of the four exhaust ports 391A-391D. Furthermore, the host control device 300 may store the shape of the living space R300 in the memory unit 102.

As a result, the host control device 300 controls the fans of the air intakes 392A-392D and the opening and closing dampers of the exhaust ports 391A-391D based on the positions of the air intakes 392A-392D indicated by the first position information and the exhaust ports 391A-391D indicated by the second position information. The specific control method will be described later.

This allows the host control device 300 to realize ventilation control that takes into account the positions of the four air intakes 392A-392D and the four exhausts 391A-391D.

For example, the host control device 300 may adjust the amount of air blown out from the four air supply ports 392A-392D and the amount of air taken in from the four air exhaust ports 391A-391D over time. In other words, since the airflow in the living space R303 changes in a complex manner over time, it is possible to make the temperature in the living space R303 uniform by making adjustments over time.

The host control device 300 may adjust the amount of air blown out from the four air intakes 392A-392D and the amount of air taken in from the four exhausts 391A-391D to control the ventilation airflow according to the heat load distribution within the living space R303.

For example, when the heat load target value ACL is a cooling load, the upper control device 300 can effectively exhaust heat from inside the room by increasing the amount of air taken in by one of the exhaust ports 391A-391D located near an area with high internal heat generation.

The host controller 300 may increase the amount of air being supplied by one of the air supply ports 392A-392D that is located away from one of the air supply ports 391A-391D that has increased the amount of air being supplied. Similarly, the host controller 300 may increase the amount of air being taken in by the air supply port 391A-391D that is located away from one of the air supply ports 392A-392D that has increased the amount of air being supplied. This prevents ventilation shortcuts and allows for efficient ventilation.

As another example, when the heat load target value ACL is a heating load, the upper control device 300 increases the amount of air supplied to one of the air supply ports 392A-392D near an area with high internal heat generation.

The upper control device 300 may also perform ventilation control based on temperature distribution.

In this embodiment, a temperature sensor is installed in each of the air intakes 392A-392D and exhausts 391A-391D.

The upper control device 300 can obtain the temperatures near the air supply ports 392A-392D and the air exhaust ports 391A-391D from the detection results of the installed temperature sensors. It is preferable that the temperature sensors are installed away from the air duct of the blown air. However, they may be installed in the air duct of the blown air as long as they blow out a mixture of indoor air and outside air.

The upper control device 300 will be described as an example in which a temperature sensor is provided at each of the air intakes 392A-392D and exhausts 391A-391D, but any arrangement of temperature sensors is acceptable as long as the temperature distribution of the living space R303 can be obtained.

Then, the upper control device 300 controls the fan (an example of a first air volume adjustment mechanism) corresponding to an air intake port (e.g., one of the air intake ports 392A-392D) located near an area where there is a large difference between the temperature of each area shown in the temperature distribution of the living space R303 based on the detection results of multiple temperature sensors and the target temperature that has been received as input, so that the amount of air supplied is greater than that of the fans of the other air intake ports.

Alternatively, the upper control device 300 controls the opening and closing damper (an example of a second air volume adjustment mechanism) corresponding to an exhaust outlet (e.g., one of exhaust outlets 391A-391D) located near an area where there is a large difference between the temperature of each area shown in the temperature distribution of the living space R303 based on the detection results of multiple temperature sensors and the target temperature received as input, so that the amount of air taken in is greater than that of the opening and closing dampers of other exhaust outlets.

In this embodiment, by finely adjusting the amount of air blown out or taken in, localized heating can be prevented, improving comfort and reducing energy consumption.

In this embodiment, the host control device 300 may perform control according to user requests in addition to controlling the air temperature in the living space R303 as described above to be uniform.

For example, the upper control device 300 may display the shape of the living space R303 and the positions of the air intakes 392A-392D and the exhausts 391A-391D on the touch panel of the user's mobile device.

When the host control device 300 receives input information on the touch panel of the mobile device, it can freely adjust the amount of air supplied to and exhausted from each of the air intakes 392A-392D and exhausts 391A-391D in accordance with the input information.

When the ventilation device 1C is operating in cooling mode and the intake air feels cold in a particular location, the user can operate the touch panel of the mobile device to reduce the amount of air being supplied from the surrounding intake vents (e.g., intake vents 392A-392D) to improve comfort.

When the ventilation device 1C is in heating operation and the temperature feels cold in a particular location, comfort can be improved by increasing the amount of air being supplied from the surrounding air intakes (air intakes 392A-392D).

The host control device 300 prevents short circuits between the intake and exhaust air by automatically controlling the amount of air taken in through the exhaust ports 391A-391D. For example, if the amount of air taken in through a specific intake port increases, the controller increases the exhaust air volume of the exhaust port farthest from that specific intake port.

For example, the upper control device 300 may perform control to increase the ventilation air volume in areas with a large number of occupants and decrease the ventilation air volume in areas with a small number of occupants. This allows for efficient ventilation.

(Modification 1 of the fifth embodiment)
Furthermore, the configuration for performing ventilation is not limited to the above-mentioned configuration, and may include further configuration.

Figure 14 is a diagram illustrating an example of the arrangement of a group of devices in a living space R303 according to a first modified example of the fifth embodiment. In the example shown in Figure 14, in addition to the configuration described in the fifth embodiment, a duct for air exchange is provided.

In the example shown in FIG. 14, in the living space R303, there is a heating load area R303A and a cooling load area R303B.

In this embodiment, a duct (an example of a third air flow path) P401 is provided to transport air from a ventilation opening (an example of a first opening) provided near the air supply port 392D in the cooling load area R303B of the living space R303 to a ventilation opening (an example of a second opening) provided near the heating load area R303A of the living space R303.

A blower fan 495 is provided on the path of the duct (an example of a third air flow path) P401.

In addition to the control shown in the embodiment described above, the host control device 400 can adjust the amount of air flowing through the duct P401 using the blower fan 495. By controlling the blower fan 495, the host control device 400 can transport air from the area R303B, which has become a cooling load as a result of the air being heated due to being present at the air intake 392D, to the area R303A, which is a heating load (in other words, an area where the temperature has dropped below the target temperature to the extent that heating is required).

As a result, in this embodiment, the air in the living space R303 is agitated, the temperature and humidity are made uniform, and localized heating can be suppressed.

Furthermore, instead of a duct, a device capable of mixing air (such as a circulator) may be installed in the living space R303. The upper control device 400 may control the ventilation device 1C and the device capable of mixing air in conjunction with each other.

The circulator is a long, thin cylinder that stretches from near the ceiling to near under the floor, and has one or more fans built into the cylinder. This allows the air to be mixed between near the ceiling and near under the floor.

During cooling, the host controller 400 uses the circulator to suck air in near the floor and blow it out near the ceiling. During heating, the host controller 400 uses the circulator to suck air in from near the ceiling and blow it out near the floor.

This allows the circulator to create a vertical airflow, eliminating the temperature distribution in the room in three dimensions. Furthermore, the blower fans (not shown) in the air conditioning indoor units 381-383 of air conditioner 2C may also be linked to control the air volume.

(Modification 2 of the fifth embodiment)
In the first modification of the fifth embodiment, an example in which heat exchange between the regions is performed by stirring the air has been described. However, the heat exchange between the regions is not limited to stirring the air. Therefore, in this modification, a case in which heat exchange is performed by a refrigerant will be described.

Figure 15 is a diagram illustrating the arrangement of a group of devices in living spaces R301 and R303 according to the second modified example of the fifth embodiment. In the example shown in Figure 15, a device (an example of a heat transfer device) having an exhaust unit 521 including a heat exchanger (an example of a fourth heat exchanger) functioning as a condenser or evaporator is provided in living space R302 (an example of a seventh area of the indoor space), and an air supply unit 511 including a heat exchanger (an example of a fifth heat exchanger) functioning as a condenser or evaporator is provided in living space R303 (an example of an eighth area of the indoor space).

In the example shown in FIG. 15, the exhaust unit 521 and the air supply unit 511 are connected by a connecting pipe, and a compressor unit 551 is provided between the connecting pipes. Furthermore, an outdoor unit 571 is connected to the air supply unit 511.

In addition to the processing of the above-described embodiment, the upper control device 500 also controls the exhaust unit 521, the air supply unit 511, and the compressor unit 551.

The upper control device 500 causes the heat exchanger (an example of a fourth heat exchanger) in the exhaust unit 521 to function as either a condenser or an evaporator, and causes the heat exchanger (an example of a fifth heat exchanger) in the air supply unit 511 to function as either a condenser or an evaporator. This allows heat to be transferred between the cooling load area R303C of the living space R303 and the heating load area R3032A of the living space R302.

In other words, the excess heat in the heating load area R303C of the living space R303 and the cooling load area R303C of the living space R302 can be transferred to the heating load area R302A that requires heat, thereby improving the air conditioning efficiency within the building.

In addition, the heat exchange is not limited to using a refrigerant, and the upper control device 500 may control the use of a duct with a built-in blower fan to blow air from the living space R303 to the living space R302.

(Modification 3 of the fifth embodiment)
In the above-described embodiment, the supply air volume and the exhaust air volume are adjusted for each living space. However, the adjustment method is not limited to this method, and the supply air volume and the exhaust air volume may be adjusted taking into account the living space inside the building. This modification will be described with reference to FIG. 12.

In the example shown in FIG. 12, a fan 21 (an example of a third airflow adjustment mechanism) is provided in the air supply unit 320 to adjust the amount of air flowing from the first heat exchanger 22 to the living space R303 through a duct (an example of a first airflow path), and a fan 11 (an example of a fourth airflow adjustment mechanism) is provided in the exhaust unit 310 to adjust the amount of air flowing from the living space R303 through a duct (an example of a second airflow path) to the outside through the second heat exchanger 12.

Then, the upper control device 300 sets the amount of air supplied by the fan 21 (third air volume adjustment mechanism) and the amount of air taken in by the fan 11 (fourth air volume adjustment mechanism) differently based on the amount of air supplied or exhausted by other equipment other than the ventilation device 1C (e.g., ventilation fans 395, 396).

For example, restrooms R304 and R305 are provided with ventilation fans (an example of a ventilation mechanism) 395 and 396 that exhaust air from restrooms R304 and R305 to the outdoors. The ventilation fans exhaust a predetermined amount of air.

Therefore, the upper control device 300 adjusts the amount of air exhausted by the ventilation device 1B and the amount of intake air based on the amount of air exhausted by the ventilation fans (an example of a ventilation mechanism) 395, 396.

Specifically, the upper control device 300 adjusts the amount of air supplied by the air supply unit 320 = the amount of air exhausted by the exhaust unit 310 + the amount of air exhausted by the ventilation fans 395, 396.

In addition, if the amount of air exhausted by the ventilation fans 395, 396 changes, the upper control device 300 adjusts the amount of air exhausted by the ventilation device 1B and the amount of air intake in response to the change. This allows the supply and exhaust air balance to be achieved inside the building.

(Variation 4 of the fifth embodiment)
In this modified example, a case will be described in which the host control device 300 controls a plurality of (eg, three) ventilation devices 1C.

Each of the multiple (e.g., three) ventilation devices 1C is provided with an exhaust unit 310 and an air supply unit 320.

In the air supply unit 320, a fan 21 (an example of a third air flow rate adjustment mechanism) is provided to adjust the amount of air flowing from the first heat exchanger 22 to the living space R303 through a duct (an example of a first air flow path), taken in from outdoors. In the exhaust unit 310, a fan 11 (an example of a fourth air flow rate adjustment mechanism) is provided to adjust the amount of air flowing from the living space R303 through a duct (an example of a second air flow path) to the outdoors through the second heat exchanger 12.

The host control device 300 performs the following operations in a building (an example of an indoor space):
The amount of air supplied by the fan 21 of the air supply unit 320 provided for each of the plurality of ventilation devices 1C and the amount of air taken in by the fan 11 of the exhaust unit 310 provided for each of the plurality of ventilation devices 1C are adjusted to be approximately the same.

As a specific method, the host control device 300 adjusts the amount of air supplied to the multiple ventilation devices 1C so that the total amount of air exhausted is approximately equal to the total amount of air supplied.

When the host control device 300 increases the amount of air supplied by one of the air supply units 320, it decreases the amount of air supplied by the other air supply unit 320 by the amount of the increase.

In addition, to stabilize the heat balance between the supply air and the exhaust air, the upper control device 300 increases the amount of air exhausted from the exhaust unit 310 paired with the supply air unit 320 that has increased the amount of air. Similarly, it decreases the amount of air exhausted from the exhaust unit 310 paired with the supply air unit 320 that has decreased the amount of air.

As another method, when the host control device 300 increases the amount of air supplied by the air supply unit 320 in multiple ventilation devices 1C, it increases the amount of air exhausted by the exhaust unit 310 by the amount increased by the air supply unit 320. This control makes it possible to maintain a balance between the total amount of air supplied and the total amount of air exhausted.

(Variation 5 of the Fifth Embodiment)
In this modified example, a case will be described in which the temperature and the like are adjusted depending on the devices owned by the occupants.

Figure 16 is a diagram illustrating an example of the arrangement of a group of devices in a room space R900 according to the fifth modification of the fifth embodiment. In the example shown in Figure 16, an air conditioner 2D and a ventilation device 1D are arranged.

Furthermore, the one outdoor unit 970 and three air conditioning indoor units 981, 982, 983 of the air conditioner 2D are similar to the one outdoor unit 370 and three air conditioning indoor units 381, 382, 383 of the air conditioner 2C according to the fifth embodiment described above, and therefore will not be described here.

The compressor unit 950, air supply unit 920, and exhaust unit 910 of the ventilation device 1D are similar to the compressor unit 350, air supply unit 32, and exhaust unit 310 of the ventilation device 1C according to the fifth embodiment described above, and therefore will not be described here.

The compressor unit 950 is similar to the compressor unit 350 according to the fifth embodiment described above.

The air supply unit 920 supplies air (SA) from four air supply ports 992A-992D. The exhaust unit 910 returns air (RA) from four exhaust ports 991A-991D.

The four air intakes 992A to 992D each have a built-in fan (an example of a first air volume adjustment mechanism) that adjusts the amount of air supplied to each intake. The fan is controlled by the upper control device 900.

The four exhaust ports 991A to 991D each have a built-in open/close damper (an example of a second air volume adjustment mechanism) that adjusts the amount of air exhausted from each exhaust port. The fan is controlled by the upper control device 900.

Furthermore, wireless receivers 993A to 993D are provided near each of the four exhaust ports 991A to 991D.

Similarly, wireless receivers 993E-993H are provided near each of the four air intakes 992A-992D.

The host control device 900 according to this embodiment stores in the memory unit 102 first position information indicating the position of each of the four air intakes 992A-992D and second position information indicating the position of each of the four exhausts 991A-991D.

The occupants of the living space R900 are periodically provided with a terminal (an example of a detector) equipped with a wireless transmitter, a temperature sensor, and a humidity sensor. The terminal (an example of a detector) may be any device, such as a smart speaker or a smartphone (with a linking application installed).

In addition, any wireless communication method may be used between the terminal and the wireless receivers 993A to 993H; for example, Wi-Fi (registered trademark) may be used.

The upper control device 900 determines the location of the terminal carried by the occupant based on the signal strength from the terminal carried by the occupant and the first location information and second location information obtained from the wireless receivers 993A to 993H.

The host control device 900 receives the detection results (humidity and temperature at the current location) from the terminal via wireless receivers 993A-993H. Based on the detection results from the terminal, the host control device 900 then controls the fan (an example of a first airflow adjustment mechanism) of an air intake (e.g., air intakes 992A-992D) located near the location of the terminal, or the opening and closing damper (an example of a second airflow adjustment mechanism) of an exhaust outlet located near the location of the terminal.

Alternatively, the host control device 900 may control the amount of air supplied from the air intakes (e.g., air intakes 992A-992D) near the wireless receivers (wireless receivers 993A-993H) that have received high-intensity radio waves to be increased. This control can reduce stagnation in areas where people are present (or areas with many people), improving comfort.

The host control device 900 may also arbitrarily adjust the amount of air supplied or exhausted based on the radio wave strength of the terminal. The host control device 900 may separately adjust the amount of air supplied and the amount of air exhausted by providing a signal for the air supply port and a signal for the exhaust port for communication with the terminal.

In this embodiment, comfort can be improved by suppressing heating and stagnation based on the detection results of the terminals carried by the occupants.

Sixth Embodiment
In the above-described embodiment, an example was described in which an air conditioner and a ventilator are provided in one living space and coordinated control is performed by a host control device. In contrast, in the sixth embodiment, an example is described in which two air conditioners are provided.

Figure 17 is a diagram showing an example of the arrangement of a host control device 700 and two air conditioners 2E_1 and 2E_2 according to the sixth embodiment. In the example shown in Figure 17, multiple air conditioners are provided in a living space R700. In the example shown in Figure 17, air conditioner 2E_1 is provided in an area of living space R700 that is susceptible to environmental influences from the outside (called the perimeter zone), and air conditioner 2E_2 is provided in an area that is less susceptible to environmental influences from the outside (called the interior zone). Since the thermal load differs depending on the area in which they are installed, air conditioner 2E_1 and air conditioner 2E_2 have different air conditioning capacities.

The air conditioner 2E_1 includes an outdoor unit 771 and an air conditioner indoor unit 781. The air conditioner indoor unit 781 draws in air from the perimeter zone of the living space R700, exchanges heat with the refrigerant flowing through the heat exchanger, and exhausts the air to the perimeter zone of the living space R700.

Air conditioner 2E_2 includes an outdoor unit 772 and an air conditioning indoor unit 782. The air conditioning indoor unit 782 draws in air from the interior zone of the living space R700, exchanges heat with the refrigerant flowing through the heat exchanger, and exhausts the air to the interior zone of the living space R700.

The host control device 700 controls the two air conditioners 2E_1 and 2E_2.

The upper control device 700 includes a control unit 701 and a storage unit 702. The control unit 701 performs overall control.

The memory unit 702 stores air conditioner capacity information 711 of air conditioner 2E_1 and air conditioner capacity information 712 of air conditioner 2E_2.

The air conditioner capacity information 711 is capacity information (an example of the first air conditioning capacity) that indicates the correlation between the air conditioning capacity that can be output for the air conditioner 2E_1 and the power consumption.

The air conditioner capacity information 711 includes the minimum air conditioning capacity Th1min that can be set based on the power consumption of the air conditioner 2E_1 out of the air conditioning capacity that the air conditioner 2E_1 can output, and the air conditioner capacity information 711 includes the maximum air conditioning capacity Th1max that can be set by the air conditioner 2E_1 out of the thermal load that the air conditioner 2E_1 can output.

Air conditioner capacity information 712 is capacity information (an example of a second air conditioning capacity) that indicates the correlation between the air conditioning capacity that can be output for air conditioner 2E_2 and the power consumption.

The air conditioner capacity information 712 includes the minimum air conditioning capacity Th2min that can be set based on the power consumption of the air conditioner 2E_2 out of the air conditioning capacity that the air conditioner 2E_2 can output, and the air conditioner capacity information 712 includes the maximum air conditioning capacity Th2max that can be set by the air conditioner 2E_2 out of the thermal load that the air conditioner 2E_1 can output.

Figure 18 is a diagram showing the correspondence between power consumption and air conditioning capacity (handling heat load) in air conditioner capacity information 711 and air conditioner capacity information 712. Line 3201 shows the air conditioning capacity (handling heat load) that the air conditioner 2E_1 can output according to the power consumption. As shown by line 3201, the higher the power consumption, the higher the output air conditioning capacity. Even if the air conditioning capacity becomes smaller than the air conditioning capacity Th1min, the power consumption will not decrease. Therefore, air conditioning capacity Th1min is set as the minimum air conditioning capacity (handling heat load). In addition, a maximum air conditioning capacity Th1max that can be output to the air conditioner 2E_1 is also set.

Line 3202 shows the air conditioning capacity (handling heat load) that air conditioner 2E_2 can output according to power consumption. As shown by line 3202, the more power consumption increases, the higher the output air conditioning capacity becomes. Even if the air conditioning capacity becomes smaller than air conditioning capacity Th2min, power consumption does not decrease. Therefore, air conditioning capacity Th2min is set as the minimum air conditioning capacity (handling heat load). In addition, a maximum air conditioning capacity Th2max that can be output to air conditioner 2E_2 is also set.

As shown in FIG. 18, the maximum air conditioning capacity Th1max of air conditioner 2E_1 is greater than the maximum air conditioning capacity Th2max of air conditioner 2E_2, and the minimum air conditioning capacity Th1min of air conditioner 2E_1 is greater than the minimum air conditioning capacity Th2min of air conditioner 2E_2.

As shown in FIG. 18, up to the maximum air conditioning capacity Th2max of air conditioner 2E_2, the power consumption corresponding to the air conditioning capacity of air conditioner 2E_2 is smaller than the power consumption corresponding to the air conditioning capacity of air conditioner 2E_1.

The control unit 701 acquires temperature detection results from the air conditioning indoor units 781, 782 of the air conditioners 2E_1, 2E_2 and the remote control via the outdoor units 771, 772. The control unit 701 can acquire the temperature, etc., in the living space R700.

The control unit 101 calculates a heat load target value (an example of a first heat load) ACL that is set as a control target in the living space R700 based on the temperature of the living space R700, etc.

Then, the control unit 101 processes the calculated thermal load target value (an example of a first thermal load) ACL using the air conditioning capacity of the air conditioners 2E_1 and 2E_2.

For example, when the calculated heat load target value (example of the first heat load) ACL is lower than the minimum air conditioning capacity Th1min indicated in the air conditioning capacity information 711, the control unit 101 processes the heat load target value (example of the first heat load) ACL only in the air conditioner 2E_2, which has lower power consumption per air conditioning capacity than the air conditioner 2E_1. This control makes it possible to realize air conditioning control in a state of high energy efficiency using a capacity lower than that of the air conditioner 2E_1.

In addition, if the minimum air conditioning capacity Th1min of air conditioner 2E_1 < heat load target value (example of first heat load) ACL < the maximum air conditioning capacity Th2max of air conditioner 2E_2, the control unit 701 outputs a control signal to perform processing using the air conditioning capacity of air conditioner 2E_2, which consumes less power, out of air conditioner 2E_1 and air conditioner 2E_2.

Note that if the maximum air conditioning capacity Th2max of air conditioner 2E_2 < heat load target value (example of first heat load) ACL < the maximum air conditioning capacity Th1max of air conditioner 2E_1, the control unit 701 outputs a control signal to perform processing using the air conditioning capacity of air conditioner 2E_1.

When the maximum air conditioning capacity Th1max of air conditioner 2E_1 is less than the heat load target value (example of first heat load) ACL, the control unit 701 outputs a control signal to perform processing using the air conditioning capacity of air conditioner 2E_1 and air conditioner 2E_2.

Seventh Embodiment
In the above-described embodiment, a case has been described in which the heat load is shared between an air conditioner and a ventilation device. However, if the ventilation device is a device capable of reducing the evaporation temperature, a latent heat/sensible heat separation operation may be performed in which the ventilation device performs humidity treatment and the air conditioner performs temperature treatment.

The configuration of this embodiment is similar to that shown in FIG. 1. However, the control unit 101 differs in the process it performs in terms of adjusting temperature and humidity.

When the air supply unit 20 according to this embodiment functions as an evaporator, it removes moisture by condensing the moisture in the air during heat exchange with the air it takes in. In this way, the air supply unit 20 is configured as a device that can reduce the evaporation temperature of the refrigerant by condensation.

When the air conditioner 2 receives the target temperature and target humidity for the living space R11 from a remote control or the like, it notifies the host control device 100 of the target temperature and target humidity. This causes the target temperature and target humidity to be set in the host control device 100.

Then, the control unit 101 of the upper control device 100 calculates the heat load target value ACL in the same manner as in the above-described embodiment. When the heat load target value ACL is a cooling load, a control signal is output to cause the first heat exchanger 22 of the air supply unit 20 of the ventilation device 1 to function as an evaporator.

The control unit 101 of the upper control device 100 controls the ventilation device 1 to dehumidify the air flowing through the first heat exchanger 22 when the first heat exchanger 22 is functioning as an evaporator, so as to achieve the target humidity when the first heat exchanger 22 is in a condensed state (a state in which the evaporation temperature is reduced).

Furthermore, the control unit 101 of the upper control device 100 controls the air conditioner 2 to reach the target temperature by controlling the temperature of the air conditioner 2 to reach the target temperature.

Figure 19 is a psychrometric chart that explains the transition until the target temperature and target humidity are reached by controlling the ventilation device 1 and the air conditioner 2 according to this embodiment.

Point 3501 in FIG. 19 is the temperature and humidity of the air taken in from outdoors, and point 3504 is the target temperature and target humidity.

The control unit 101 outputs a control signal to the air supply unit 20. As a result, the air supply unit 20 controls the first heat exchanger 22 to function as an evaporator, thereby lowering the temperature of the taken-in air as shown by line 3511, and then controls the temperature and humidity to be lowered along the curve of 100% relative humidity as shown by line 3512. This causes the humidity to reach the target humidity. In other words, the humidity (target humidity) and temperature shown by point 3503 are reached by controlling the air supply unit 20.

For this reason, the control unit 101 outputs a control signal to the ventilation device 1 to cause the first heat exchanger 22 to function so that the temperature corresponds to the target humidity on the curve of 100% relative humidity on the psychrometric chart. In other words, in this embodiment, the control unit 101 controls the air supplied from the air supply unit 20 after heat exchange in the second heat exchanger to maintain a temperature that corresponds to the target humidity on the curve of 100% relative humidity on the psychrometric chart, thereby maintaining and controlling the dehumidification amount.

Then, the control unit 101 outputs a control signal to the air conditioner 2. As a result, the air conditioner 2 raises the air temperature from the humidity (target humidity) and temperature indicated by point 3503, as shown by line 3513, to reach the temperature (target temperature) and humidity (target humidity) indicated by point 3504.

In this embodiment, the ventilation device 1 processes the latent heat load, and the air conditioner 2 processes the sensible heat load, allowing for highly accurate temperature and humidity control. This control can improve the efficiency of power consumption.

Eighth embodiment
In the eighth embodiment, a method of adjusting humidity in the air supply unit will be described. The humidity adjustment may be combined with the humidity adjustment method shown in the fourth embodiment, for example.

The configuration of this embodiment is similar to that shown in FIG. 1. However, the control unit 101 differs in the process it performs in terms of adjusting temperature and humidity.

The air supply unit 20 in this embodiment humidifies the air after heat exchange in the first heat exchanger 22 by supplying water.

When the air conditioner 2 receives the target temperature and target humidity for the living space R11 from a remote control or the like, it notifies the host control device 100 of the target temperature and target humidity. This causes the target temperature and target humidity to be set in the host control device 100.

Then, the control unit 101 of the host control device 100 calculates the heat load target value ACL in the same manner as in the above-described embodiment. When the heat load target value ACL is a heating load, a control signal is output to cause the first heat exchanger 22 of the air supply unit 20 of the ventilation device 1 to function as a condenser.

In this embodiment, when the heat load target value ACL is shared between the air conditioner 2 and the ventilator 1, the ventilator 1 is responsible for the heat load corresponding to the air supplied at the target temperature and target humidity, and the air conditioner 2 is responsible for the difference between the heat load target value ACL and the heat load corresponding to the air supply.

When the ventilation device 1 is performing humidification operation, the control unit 101 of the upper control device 100 sets the temperature of the air after heat exchange by the first heat exchanger 22 so that the target temperature and target humidity are achieved when water is supplied to the air after heat exchange by the first heat exchanger 22, and outputs a control signal to the air supply unit 20 to control the temperature based on the setting.

Figure 20 is a psychrometric chart that explains the transition until the target temperature and target humidity are reached by controlling the ventilation device 1 and the air conditioner 2 according to this embodiment.

Point 3401 shown in FIG. 20 is the temperature and humidity of the air taken in from outdoors, and point 343403 is the target temperature and target humidity.

The control unit 101 outputs a control signal to the air supply unit 20. As a result, the air supply unit 20 causes the first heat exchanger 22 to function as a condenser, thereby raising the temperature of the air taken in as shown by line 3411. As a result, the humidity and temperature shown by point 3402 are reached.

Then, the air supply unit 20 supplies water to the air after heat exchange. As a result, the humidity (target humidity) and temperature (target temperature) indicated by point 3403 are reached through an isenthalpic change as shown by line 3412.

In this way, when the ventilation device 1 performs humidification operation, the control unit 101 sets the temperature of the air after heat exchange by the first heat exchanger 22 so that when water is supplied to the air after heat exchange by the first heat exchanger 22, the temperature becomes the preset target temperature and target humidity due to an isenthalpic change, and outputs a control signal to the air supply unit 20 to perform temperature control based on the setting.

In this embodiment, taking into consideration that the temperature drops with humidification due to isenthalpy, heat exchange is performed in the first heat exchanger 22, thereby achieving efficient humidity and temperature adjustment.

Ninth embodiment
21 is a diagram illustrating the configuration of a host control device 1200, an air supply unit 1220, an exhaust unit 1210, and a compressor unit 1250 according to this embodiment. Note that the same reference numerals are assigned to the same configurations as those in the above-described embodiment, and the description thereof will be omitted.

The host control device 1200 also controls air conditioners (not shown) and the like. The coordinated control of the ventilation device including the air supply unit 1220 and the exhaust unit 1210 and the air conditioners by the host control device 1200 is used, for example, during heat recovery ventilation operation, and is the same as in the above-mentioned embodiment, so a description thereof will be omitted.

The air supply unit 1220 forms an air flow path from the outdoors to the living space, and has at least a fan 21, a first heat exchanger 22, and a straightening fin 1290.

The exhaust unit 1210 forms an air flow path from the living space to the outdoors, and has a fan 11 and a second heat exchanger 12.

The host control device 1200 performs the same process as in the above-described embodiment to calculate a heat load target value ACL (an example of a first heat load) that is set as a control target in the living space R11 based on the temperature of the living space R11, etc. When the host control device 1200 determines that the heat load target value ACL is a cooling load, it performs the following process.

When the outdoor air temperature detected by the temperature detection unit 24 of the air supply unit 20 is lower than the target temperature set in the living space R11, the upper control device 1200 suppresses the operation of the compressor included in the compressor unit 50, and sets at least one of the wind direction and air volume of the air supplied from the air supply flow path P1 by the air supply unit 20 so that the air in the living space R11 is replaced by the outdoor air by the ventilation device 1.

In this embodiment, the host control device 1200 adjusts the air flow straightening fins 1290 provided on the air supply unit 1220 downward.

Furthermore, the upper control device 1200 sets the amount of air supplied from the air supply unit 1220 to the maximum value that can be set (the fan 21 is set to the maximum rotation speed), and sets the amount of air taken in and exhausted from the exhaust unit 1210 to the maximum value that can be set (the fan 11 is set to the maximum rotation speed).

By this control, the upper control device 1200 switches the air flow 2611 when the wind direction and air volume are not adjusted to the air flow 2602 when the wind direction and air volume are not adjusted.

For example, in the early morning during summer, the outdoor temperature may be lower than the target temperature for the room space. In this case, the relationship outdoor temperature < indoor target temperature < indoor temperature holds.

In such a case, the upper control device 1200 can control the indoor temperature to the target temperature by stopping the temperature control of the air supply unit 1220 and the exhaust unit 1210 (suppressing the operation of the compressor) and actively taking in outside air.

In this case, the host control device 1200 can adjust the airflow direction and volume to improve ventilation efficiency and quickly reach the target temperature with low power consumption.

(Modification of the ninth embodiment)
The method of adjusting the temperature using outside air is not limited to the method shown in the ninth embodiment. For example, when there are a plurality of air intakes and exhausts, a method of adjusting the temperature by controlling the air to circulate in the living space can be considered.

For example, as shown in FIG. 13, the four air supply ports 392A-392D to which the air supply unit 320 supplies air are located below the air conditioning indoor units 381, 382, 383 in FIG. 13 (e.g., on the south side: an example of the first direction side in the living space), and the four exhaust ports 391A-391D to which the air intake ports of the exhaust unit 310 are located above the air conditioning indoor units 381, 382, 383 in FIG. 13 (e.g., on the north side: an example of the second direction side in the living space).

The four air intakes 392A to 392D each have a built-in fan (an example of a first air volume adjustment mechanism) that adjusts the amount of air supplied to each intake. The fan is controlled by the upper controller 300.

The four exhaust ports 391A to 391D each have a built-in opening/closing damper (an example of a second air volume adjustment mechanism) that adjusts the amount of air taken in for each exhaust port. The opening/closing damper is controlled by the upper control device 300.

Then, the host control device 300 as shown in FIG. 13 performs the same process as in the above-described embodiment to calculate a heat load target value (example of a first heat load) ACL that is set as a control target in the living space R11 based on the temperature of the living space R11, etc. When the host control device 300 determines that the heat load target value ACL is a cooling load, it performs the following process.

When the outdoor air temperature detected by the temperature detection section 24 of the air supply unit 20 is lower than the target temperature set in the living space R11, the upper control device 300 suppresses the operation of the compressor included in the compressor unit 50 and controls so that air is supplied through all air supply ports 392A-392D located on the south side of the living space and exhausted through all exhaust ports 391A-391D located on the north side of the living space. In addition, air supply ports 392A-392D may be provided with straightening fins and combined with the same control as in the ninth embodiment.

In this embodiment, ventilation efficiency is improved, making it possible to quickly reach the target temperature.

Tenth Embodiment
Another aspect of the processing in the upper control device will be described below. It is assumed that the ventilation device and the air conditioner have the same configuration as in the above-described embodiment.

Figure 22 is a diagram illustrating the configuration of the host control device 1100 according to this embodiment. As shown in Figure 22, the host control device 1100 (an example of an air conditioning control device) includes an air conditioning load acquisition unit 1101, an operation instruction plan generation unit 1102, a situation calculation unit 1203, a memory unit 1204, and an operation plan extraction unit 1205.

The air conditioning load acquisition unit 1101 acquires the heat load target value ACL in the same procedure as in the above-described embodiment.

The operation instruction plan generation unit 1102 generates multiple operation instruction plans (an example of operation instruction information) for controlling the air conditioner and the ventilation device to control the air conditioning of the indoor space in which the air conditioner and the ventilation device are installed based on the heat load target value ACL.

In this embodiment, the upper control device 1100 holds in advance a learned model that has been machine-learned to learn the heat load target value ACL and the operating behavior of the air conditioner and the ventilation device.

Then, the upper level control device 1100 generates multiple operation instruction plans for the air conditioners and ventilation devices by inputting the thermal load target value ACL.

The situation calculation unit 1203 acquires an amount that correlates with the air conditioning load of the indoor space, and for each generated operation instruction plan, calculates the amount of energy when the air conditioning load of the indoor space is processed according to the operation instruction plan, taking into account the amount that correlates with the air conditioning load of the indoor space. Note that any method may be used to calculate the amount of energy, regardless of whether it is a well-known method.

Note that quantities correlated with the air conditioning load of an indoor space include quantities related to the amount of air ventilated by the ventilation system.

The memory unit 1204 stores the correspondence between the proposed driving instructions and the calculated amount of energy.

The operation plan extraction unit 1205 outputs an operation instruction based on an operation instruction plan associated with an energy amount that satisfies a predetermined condition to at least one of the air conditioner and the ventilation device. At that time, the operation plan extraction unit 1205 selects the plan that consumes the least energy from among the operation instruction plans associated with an energy amount that satisfies the predetermined condition.

The specified conditions are, for example, conditions under which cold heat is recovered from exhaust air (high-temperature refrigerant is passed through the exhaust path heat exchanger) when the total heat balance of the indoor space is a temperature rise, and conditions under which warm heat can be recovered from exhaust heat when the total heat balance of the indoor space is a temperature fall.

In other words, when the air conditioner and ventilation system are linked, if the heat balance in the room space is rising, the exhaust unit recovers cold heat (flowing high-temperature refrigerant, cooling operation) and the air conditioner also operates in cooling mode. Also, if the heat balance in the room space is falling, the exhaust unit recovers warm heat (heating operation) and the air conditioner also operates in heating mode.

In other words, by aligning the heating and cooling temperature control between the air conditioner and the ventilation system, energy efficiency can be improved.

Eleventh Embodiment
In the above-mentioned embodiment, an example has been described in which an air supply unit and an exhaust unit are installed in the attic space so that the ventilation device can perform ventilation, and an air supply port connected to the air supply unit and an exhaust port connected to the exhaust unit are provided on the ceiling of the living space. However, the above-mentioned embodiment is not limited to this arrangement. Therefore, in the eleventh embodiment, an example in which an air supply unit and an exhaust unit are arranged in a living space will be described.

Figure 23 is a diagram showing an example of the configuration of a ventilation device, an air conditioner, and a host control device according to the 11th embodiment. In the example shown in Figure 23, the air conditioning system includes a ventilation device 1G, an air conditioner 2, and a host control device 100 to condition an indoor space. In this embodiment, the same reference numerals are assigned to configurations similar to those in the above-mentioned embodiments, and descriptions thereof will be omitted.

The air conditioner 2 includes an outdoor unit 70 and two air conditioning indoor units 81 and 82, similar to the first embodiment. The host control device 100 can also perform the same control as in the above-described embodiment, such as the heat load sharing control shown in the first embodiment.

The ventilation device 1G includes a compressor unit 50, an exhaust unit 1310, an air supply unit 1320, and refrigerant circuits F1, F2, F3, and F4.

The air supply unit 1320 has a structure (an example of a first casing) that houses a control unit 23, a first heat exchanger 22, and a fan 21 (an example of a first air volume adjustment mechanism) that supplies (SA) outdoor air (OA) taken in from outdoors to the living space R11 after passing the outdoor air (OA) through the first heat exchanger 22.

The exhaust unit 1310 has a structure (an example of a second casing) that houses a control unit 13, a second heat exchanger 12, and a fan 11 (an example of a second air volume adjustment mechanism) that exhausts (EA) the return air (RA) from the living space R11 to the outdoors after passing it through the second heat exchanger 12.

The exhaust unit 1310 and the air supply unit 1320 according to this embodiment are installed in the living space R11. In this embodiment, the exhaust unit 1310 and the air supply unit 1320 are installed at different heights.

In the example shown in FIG. 23, the control unit 101 causes the first heat exchanger 22 to function as a condenser and the second heat exchanger 12 to function as an evaporator in the ventilation device 1G.

Therefore, the air supply unit 1320 warms the outside air (OA) that is taken in, and then supplies it to the living space R11 as air (SA). The air supply unit 1320 warms the living space R11 from the vicinity of the floor with the warmed supply air (SA). And, because the supply air (SA) is warm, it rises in the living space R11.

The exhaust unit 1310 functions to take in return air (RA) from the living space R11 and exhaust it outdoors (EA). Since the exhaust unit 1310 is installed near the ceiling, the heated supply air (SA) is used to return air (RA) that has risen from near the floor, thereby efficiently circulating air within the living space R11. Furthermore, in this embodiment, an air current that circulates in the vertical direction can be formed, so that the temperature distribution in the living space R11 can be controlled to be approximately uniform.

This embodiment may be combined with each of the configurations of the above-mentioned embodiments. For example, multiple exhaust units 1310 and multiple air supply units 1320 may be provided.

(Modification of the eleventh embodiment)
In the eleventh embodiment, an example has been described in which the exhaust unit 1310 is installed near the ceiling and the air supply unit 1320 is installed near the floor. However, the eleventh embodiment shows only one example of the arrangement, and a different arrangement may be used as long as the heights of the exhaust unit and the air supply unit are different.

Figure 24 is a diagram showing an example of the configuration of a ventilation device, an air conditioner, and a host control device according to a modified example of the eleventh embodiment. In the example shown in Figure 24, the air conditioning system includes a ventilation device 1H, an air conditioner 2, and a host control device 100 to condition the living space R11. In this embodiment, the same reference numerals are assigned to configurations similar to those in the above-mentioned embodiments, and descriptions thereof will be omitted.

The ventilation device 1H includes a compressor unit 50, an exhaust unit 1410, an air supply unit 1420, the compressor unit 50, and refrigerant circuits F1, F2, F3, and F4.

The exhaust unit 1410 and the air supply unit 1420 according to this embodiment are installed in the living space R11. In this embodiment, similar to the eleventh embodiment, the exhaust unit 1410 and the air supply unit 1420 are installed at different heights.

In the example shown in FIG. 24, the exhaust unit 1410 is installed near the floor, and the air supply unit 1420 is installed near the ceiling. Furthermore, the exhaust unit 1410 is provided near the wall on the right side of the living space R11, and the air supply unit 1420 is provided near the wall on the left side of the living space R11. This modified example shows one example of the arrangement, and the exhaust unit 1410 and the air supply unit 1420 may be provided near opposing walls.

In the example shown in FIG. 24, the control unit 101 causes the first heat exchanger 22 to function as an evaporator and the second heat exchanger 12 to function as a condenser for the ventilation device 1H.

For this reason, the air supply unit 1420 cools the outside air (OA) that has been taken in, and then supplies it (SA) to the living space R11. In this modified example, the living space R11 is cooled from near the ceiling by the cooled supply air (SA) from the air supply unit 1420. And, because the supply air (SA) is cold, it descends through the living space R11.

The exhaust unit 1410 functions to take in return air (RA) from the living space R11 and exhaust it outdoors (EA). Since the exhaust unit 1410 is installed near the floor, it takes in the return air (RA) that has descended from near the ceiling using cooled supply air (SA), so air circulation within the living space R11 can be efficiently achieved. Furthermore, in this embodiment, an airflow that circulates in the vertical direction can be formed, so that the temperature distribution in the living space R11 can be controlled to be approximately uniform.

The eleventh embodiment and its modified examples described above show examples of the arrangement of the exhaust unit and the air supply unit, and any arrangement may be used as long as the heights of the exhaust unit and the air supply unit are different. This embodiment may be combined with each of the configurations of the above-mentioned embodiments. For example, multiple exhaust units and multiple air supply units may be provided.

Twelfth embodiment
The above-mentioned embodiment shows an example of the air supply unit and the exhaust unit of the ventilation device, and the air supply unit and the exhaust unit may have other configurations. Therefore, in the twelfth embodiment, an example in which the air supply unit and the exhaust unit have configurations different from those of the above-mentioned embodiment will be described.

Figure 25 is a diagram showing an example of the configuration of a ventilation device, an air conditioner, and a host control device according to the twelfth embodiment. In the example shown in Figure 25, the air conditioning system includes a ventilation device 1I, an air conditioner 2, and a host control device 1600 to condition the living space R11. In this embodiment, the same reference numerals are assigned to configurations similar to those in the above-mentioned embodiments, and descriptions thereof will be omitted.

The air conditioner 2 includes an outdoor unit 70 and two air conditioning indoor units 81 and 82, similar to the first embodiment.

The host control device 1600 performs the same control as the host control device of the above-mentioned embodiment (e.g., heat load sharing control), and also has a control unit 1601 for performing the following controls on the exhaust unit 1610 and the air supply unit 1620 depending on the temperature of the living space R11.

The ventilation device 1I includes a compressor unit 50, an exhaust unit 1610, an air supply unit 1620, the compressor unit 50, and refrigerant circuits F1, F2, F3, and F4.

The air supply unit 1620 has a structure (example of a first casing) that houses an air supply damper (example of a first switching mechanism) 1625 that can switch the air intake between the outdoors and the living space R11, a first heat exchanger 22, and a fan 21 (example of a first air volume adjustment mechanism) that supplies air taken in from the intake destination switched by the air supply damper 1625 to the living space R11 after passing the air through the first heat exchanger 22.

The exhaust unit 1610 has a structure (an example of a second casing) that houses an exhaust damper (an example of a second switching mechanism) 1615 that can switch the output destination of the air between the outdoors and the living space R11, a second heat exchanger 12, and a fan 11 (an example of a second air volume adjustment mechanism) that exhausts the air taken in from the living space R11 to the output destination switched by the exhaust damper 1615 after passing the air through the second heat exchanger 12.

The exhaust unit 1610 and the air supply unit 1620 according to this embodiment are installed in the living space R11. In this embodiment, the exhaust unit 1610 and the air supply unit 1620 are installed at different heights, similar to the eleventh embodiment.

In the example shown in FIG. 25, the control unit 1601 causes the first heat exchanger 22 to function as a condenser and the second heat exchanger 12 to function as an evaporator for the ventilation device 1I.

In the example shown in FIG. 25, the intake damper 1625 is switched to take in outside air (OA) from outdoors, and the exhaust damper 1615 is switched to exhaust (EA) the taken-in return air (RA).

However, when there is a large difference between the temperature of the living space R11 and the outdoor temperature, when performing ventilation as shown in Figure 25, a lot of energy is required to heat the outside air to the same temperature as the air in the living space R11. On the other hand, when there are not many people in the living space R11, the CO2 concentration is low, so it can be considered a situation where there is no need to actively ventilate. In other words, there are also situations where it is acceptable to reduce the ventilation capacity.

Therefore, in this embodiment, the control unit 1601 controls the switching between the exhaust damper 1615 and the supply damper 1625 depending on the outdoor environment and indoor environment of the living space R11.

Figure 26 is a diagram showing an example of switching between the supply air damper 1625 and the exhaust damper 1615 according to this embodiment. In the example shown in Figure 26, the supply air damper 1625 switches the air intake destination to the outdoors, and the exhaust damper 1615 controls the air output destination to be switched to the living space R11. The living space R11 may be provided with an exhaust port (not shown) for natural exhaust. In other words, the example shown in Figure 26 realizes a second type ventilation method.

When a first environmental condition is satisfied, the control unit 1601 performs switching control as shown in FIG. 26. The first environmental condition is, for example, when the CO2 concentration detected by the sensor unit (not shown) is lower than a first concentration, and the difference between the temperature of the living space R11 and the outdoor temperature is higher than a first temperature difference. The first concentration is a CO2 concentration that is set as a criterion for determining when no one is present in the living space R11. The first temperature difference is a temperature difference that is a criterion for determining whether or not energy saving measures should be taken, and is set according to the embodiment.

In the example shown in FIG. 26, the detection results of the sensor unit (not shown) are referenced to prevent the CO2 concentration from increasing, while the exhaust damper 1615 switches the air output destination to the living space R11, preventing warm air from being discharged outdoors. This allows the air conditioning system according to this embodiment to achieve energy savings.

Figure 27 is a diagram showing an example of switching between the air supply damper 1625 and the exhaust damper 1615 according to this embodiment. In the example shown in Figure 27, the air supply damper 1625 switches the air intake destination to the living space R11, and the exhaust damper 1615 switches the air output destination to the living space R11.

When a second environmental condition is satisfied, the control unit 1601 performs switching control as shown in FIG. 26. The predetermined condition is, for example, when the CO2 concentration is lower than the first concentration, and the difference between the temperature of the living space R11 and the outdoor temperature is higher than a second temperature difference (second temperature difference > first temperature difference). The second temperature difference is a temperature difference that is a criterion for determining whether or not to take energy saving measures, and is a value larger than the first temperature difference, and is determined according to the embodiment.

In the example shown in FIG. 27, by referring to the detection results of the sensor unit (not shown), the CO2 concentration is prevented from increasing, while the supply air damper 1625 switches the air intake destination to the living space R11 and the exhaust damper 1615 switches the air output destination to the living space R11, thereby preventing a drop in the temperature of the living space R11. Compared to the switching situation shown in FIG. 26, the switching situation shown in FIG. 27 does not require the outside air to be heated to the temperature of the living space R11, thereby achieving further energy savings.

Figures 25 to 27 show an example in which the intake damper 1625 and the exhaust damper 1615 are each switched on and off, in other words, switching between ventilation and indoor circulation. In this embodiment, ventilation and indoor circulation may also be used in combination.

Figure 28 is a diagram showing an example of switching between the air supply damper 1625 and the exhaust damper 1615 according to this embodiment. In the example shown in Figure 28, switching control is performed so that the air supply damper 1625 takes in air from both the living space R11 and the outdoors, and the exhaust damper 1615 outputs air to both the living space R11 and the outdoors.

When a third environmental condition is satisfied, the control unit 1601 performs switching control as shown in FIG. 26. The third environmental condition is, for example, when the CO2 concentration is lower than a second concentration (second concentration > first concentration) and the difference between the temperature in the living space R11 and the outdoor temperature is higher than the second temperature difference. The second concentration is, for example, a CO2 concentration that is set as a criterion for when only a few people are present in the living space R11.

Thirteenth embodiment
Fig. 29 is a diagram illustrating an example of an arrangement of a device group including a host control device 1700 according to the thirteenth embodiment. The example shown in Fig. 29 includes at least living spaces R301, R302, and R303, restrooms R304, R305, and R307, and a pipe shaft R306.

Air conditioners 2C and ventilation devices 1J are provided in the living space R303 and restrooms R304, R305, and R307.

Air conditioner 2C includes one outdoor unit 370 and three air conditioning indoor units 381, 382, and 383. The one outdoor unit 370 and the three air conditioning indoor units 381 to 383 are connected by interconnecting piping.

The outdoor unit 370 is also connected to the host control device 1700 via a signal line. This allows one outdoor unit 370 to perform air conditioning control according to the control of the host control device 1700.

The ventilation device 1J includes a compressor unit 350, an air supply unit 1720, and an exhaust unit 1710.

The compressor unit 350, the air supply unit 1720, and the exhaust unit 1710 are connected by a communication pipe. The communication pipe includes multiple refrigerant communication pipes. This allows the refrigerant to circulate between the compressor unit 350, the air supply unit 1720, and the exhaust unit 1710.

The compressor unit 350, the air supply unit 1720, and the exhaust unit 1710 are connected by signal lines (not shown). This allows information to be sent and received between the units. The configurations within the compressor unit 350, the air supply unit 1720, and the exhaust unit 1710 are similar to those of the compressor unit, the air supply unit, and the exhaust unit shown in the above-mentioned embodiment, so a description thereof will be omitted.

The compressor unit 350 is located in the pipe shaft R306.

The host control device 1700 is connected to the compressor unit 350 via a signal line. This allows the host control device 1700 to recognize the status of each device in the ventilation device 1J and control each device.

The four air supply ports 1792A-1792D, which are the air supply destinations of the air supply unit 1720, are provided in the living space R303.

The four air intakes 1792A-1792D each have a built-in fan (an example of a first air volume adjustment mechanism) that adjusts the amount of air supplied to each intake. The fan is controlled by the host control device 1700.

The three exhaust ports 1791A-1791C, which are the air intake ports for the exhaust unit 1710, are provided in restrooms R304, R305, and R307.

The three exhaust ports 1791A to 1791C each have a built-in fan (an example of a second air volume adjustment mechanism) that adjusts the amount of air taken in by each exhaust port. The fan is controlled by the upper control device 1700.

The host control device 1700 according to this embodiment controls the air volume of the fans of the four air intakes 1792A-1792D and the three air exhausts 1791A-1791C so that the total amount of supply air (SA) from the four air intakes 1792A-1792D matches the total amount of return air (RA) from the three air exhausts 1791A-1791C.

In addition, in restrooms R304, R305, and R307, the air volume of the fans at the three exhaust ports 1791A to 1791C may be changed depending on the occupancy status.

When the amount of air taken in from the fan of at least one of the three exhaust ports 1791A-1791C changes, the host control device 1700 adjusts the amount of air taken in from the other exhaust ports of the three exhaust ports 1791A-1791C using the other fans installed in the exhaust ports 1791A-1791C so that the total amount of air supplied from the four air inlets 1792A-1792D roughly matches the total amount of air taken in from the three exhaust ports 1791A-1791C.

In the example shown in the thirteenth embodiment, a case where one air supply unit 1720 and one exhaust unit 1710 are provided has been described. However, this embodiment is not limited to an example where one air supply unit 1720 and one exhaust unit 1710 are provided, and one or more of the air supply units 1720 and the exhaust units 1710 may be provided in multiples.

Even if multiple air supply units 1720 and/or multiple exhaust units 1710 are provided, the host control device 1700 controls the air volume of the fans provided at the exhaust and intake ports so that the total amount of outside air taken in by the air supply units 1720 and the total amount of air exhausted by the exhaust units 1710 are approximately equal.

In this embodiment, the ventilation device 1J is provided across multiple living spaces, so that the exhaust heat can be effectively utilized between the multiple living spaces. Furthermore, the above-mentioned control can stabilize the total air volume of the exhaust unit 1710 and the air supply unit 1720. This stabilizes the performance of the ventilation device 1J, and the air pressure in the multiple living spaces can be kept stable.

Fourteenth embodiment
In the above-described fourth embodiment, an example of a humidity adjustment method has been described. However, another aspect may be used as the humidity adjustment method. Therefore, in the fourteenth embodiment, an example in which the amount of humidification is distributed to each region will be described.

This embodiment has a configuration similar to that shown in FIG. 7. The host control device 100 acquires the amount of humidification required in the living space R101. The amount of humidification required in the living space R101 (hereinafter referred to as the target humidification amount) may be acquired by a conventional method, and may be calculated according to a target humidity input by the user, for example.

Then, the upper control device 100 acquires the air temperature in the area R101A (an example of a first area) and the air temperature in the area R101B (an example of a second area). The method of acquiring the air temperature in the area R101A (an example of a first area) and the area R101B (an example of a second area) may be a well-known method, for example, acquired from a sensor unit (not shown) provided in each of the area R101A (an example of a first area) and the area R101B (an example of a second area).

When the host control device 100 applies the target humidification amount to the living space R101, it compares the air temperature in area R101A (an example of a first area) of the living space R101 with the air temperature in area R101B (an example of a second area) of the living space R101, and allocates more humidification to the area with higher temperatures than to the area with lower temperatures.

For example, when the temperature in area R101A is higher than that in area R102B, the upper control device 100 controls the air supply unit 20A of the ventilation device 1A installed in area R101A to increase the amount of humidification compared to the air supply unit 20B of the ventilation device 1B installed in area R101B. Any method may be used to allocate the amount of humidification, including well-known methods. For example, the amount of humidification may be allocated so that the relative humidity in area R101A and area R102B are the same.

In this embodiment, the host control device 100 performs the above-mentioned control to suppress condensation at the outlet of a ventilation device installed in a low-temperature area.

In the above-described embodiment and modified example, an example has been described in which the air supply unit is a casing (an example of a first casing) that houses the first heat exchanger 22 and at least a portion of the air flow path (an example of a first air flow path), and the exhaust unit is a casing (an example of a second casing) that houses the second heat exchanger 12 and at least a portion of the air flow path (an example of a second air flow path), and the casings are separate from each other.

This allows the exhaust unit and the air supply unit to be located apart from each other, allowing greater freedom in placement of the ventilation device capable of recovering heat compared to conventional methods.

However, the above-mentioned embodiment and modified examples are not limited to examples in which the casings of the air intake unit and the exhaust unit are separate, and the air intake unit and the exhaust unit may be integrated. In other words, when the first heat exchanger 22 and the second heat exchanger 12 are connected by a refrigerant circuit, and a fan 21 corresponding to the first heat exchanger 22 and a fan corresponding to the second heat exchanger 12 are provided, the air volume adjustment and refrigerant temperature adjustment shown in the above-mentioned embodiment and modified examples can be applied. In this way, the techniques shown in the above-mentioned embodiment and modified examples may be applied to cases in which the air intake unit and the exhaust unit are integrated.

The above-described embodiment and modified examples are examples of methods for coordinating air conditioning. The methods shown in the above-described embodiment and modified examples are not limited to being used alone, and may be used in combination with one or more of the methods shown in other embodiments and modified examples.

Although the embodiments have been described above, it will be understood that various changes in form and details are possible without departing from the spirit and scope of the claims. Various modifications and improvements, such as combinations and substitutions with part or all of other embodiments, are possible.

1, 1A, 1B, 1C, 1D, 1F_1, 1F_2, 1F_3, 1G, 1H, 1I, 1J Ventilation device 2, 2A, 2B, 2C, 2D, 2E_1, 2E_2 Air conditioner 10, 10A, 10B, 310, 521, 1210, 1310, 1410, 1610, 1710 Exhaust unit 11 Fan 12 Second heat exchanger 13, 113, 313 Control unit 14 Temperature detection unit 1615 Exhaust damper 20, 20A, 20B, 320, 511, 1220, 1320, 1420, 1620, 1720 Air supply unit 21 Fan 22 First heat exchanger 23 Control unit 24 Temperature detection unit 1625 Air supply damper 50, 50A, 50B, 350, 551, 1250 Compressor unit 51 Drive motor 52, 152 Control unit 70, 70A, 70B, 370, 571, 771, 772 Outdoor unit 71, 171 Control unit 81, 82, 83, 81A, 81B, 381, 382, 382, 781, 782, 981, 982, 982 Air conditioning indoor unit 92A, 92B, 92C, 92D, 392A, 392B, 392C, 392D, 992A, 992B, 992C, 992D Air intake port 93A, 93B, 93C, 93D, 393A, 393B, 393C, 393D, 991A, 991B, 991C, 991D Exhaust port 100, 300, 400, 500, 700, 900, 1100, 1200, 1600, 1700 Host control device 101, 701, 1601 Control unit 102, 702 Memory unit F1, F2, F3, F4 Refrigerant circuit F101, F102 Communication piping P1 Supply air flow path P2 Return air flow path P101 Supply air duct P102 Exhaust air duct

Claims (32)

a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside , a first casing that houses the first heat exchanger and at least a portion of the first air flow path, and a second casing that houses the second heat exchanger and at least a portion of the second air flow path;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first casing and the second casing are separable,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner.
Air conditioning system. The number of the ventilation devices is plural,
The number of the air conditioners is plural,
The control unit performs setting to distribute a first thermal load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, to each of the plurality of ventilation devices and the plurality of air conditioners according to the first capacity and the second capacity.
2. The air conditioning system of claim 1. When the control unit is set to share a part of the first heat load with the ventilation device, the control unit causes the first heat exchanger to function as a condenser or an evaporator to adjust the temperature of the supply air to the indoor space.
2. The air conditioning system of claim 1. The control unit stores, as the first capacity, a first minimum thermal load determined as a minimum value that can be set based on the power consumption of the ventilation device among the thermal loads that can be output, and stores, as the second capacity, a second minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output,
When the first thermal load is smaller than the first minimum thermal load and the first thermal load is smaller than the second minimum thermal load, the ventilation device is controlled to repeatedly operate and stop operating at a capacity corresponding to the minimum thermal load, and the operation of the air conditioner is stopped.
2. The air conditioning system of claim 1. The control unit is
Furthermore, when the first thermal load is smaller than a minimum thermal load based on the first capacity and a minimum thermal load based on the second capacity, an operation time of the ventilation device is set so as to perform a process corresponding to the first thermal load per unit time.
5. An air conditioning system according to claim 4. The number of the ventilation devices is plural,
The number of the air conditioners is plural,
The control unit is
A minimum thermal load determined as a minimum value that can be set based on the power consumption of the ventilation device among the thermal loads that can be output is stored in advance as the first capacity, and a minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output is stored in advance as the second capacity,
When the first thermal load is smaller than a sum of the minimum thermal loads at the first capacity by the plurality of ventilation devices and the first thermal load is smaller than a sum of the minimum thermal loads at the second capacity by the plurality of air conditioners, a part of the plurality of ventilation devices is stopped, and the other ventilation devices are operated to perform operation at a capacity corresponding to the first thermal load.
2. The air conditioning system of claim 1. The control unit is
A minimum thermal load determined as a minimum value that can be set based on the power consumption of the air conditioner among the thermal loads that can be output is held in advance as the second capacity,
causing the air conditioner to maintain operation of the second capacity to process a minimum heat load;
2. The air conditioning system of claim 1. the control unit, when the second heat exchanger functions as a condenser, suppresses operation of the compressor when an input target temperature is higher than the temperature of the outdoor air and lower than the temperature of the air in the indoor space, sets an amount of air supplied from the first air flow path to a settable maximum value, and sets an amount of air exhausted from the second air flow path to a settable maximum value.
2. The air conditioning system of claim 1. The control unit adds up a thermal load generated in the indoor space and a thermal load generated by ventilation between the indoor space and the outdoors, and acquires the first thermal load.
An air conditioning system according to any one of the preceding claims. The control unit is
Acquiring a temperature or humidity of the first air after passing through the first heat exchanger via the first air flow path, and a temperature or humidity of the second air in the indoor space;
Determining whether the temperature or humidity of the first air and the temperature or humidity of the second air satisfy a predetermined standard;
When it is determined that the predetermined standard is not satisfied, the heat load processing capacity of the ventilation device is suppressed and the heat load processing capacity of the air conditioner is increased compared to before the determination.
An air conditioning system according to any one of the preceding claims. The control unit adds a thermal load occurring in a first area of the indoor space and corresponding to a control for lowering a temperature and a thermal load occurring in a second area of the indoor space and corresponding to a control for increasing a temperature, and acquires the first thermal load.
An air conditioning system according to any one of the preceding claims. The control unit is
When it is determined that the first thermal load is a cooling load,
The first heat exchanger functions as the evaporator and the second heat exchanger functions as the condenser;
When it is determined that the first thermal load is a heating load,
The first heat exchanger functions as the condenser, and the second heat exchanger functions as the evaporator.
An air conditioning system according to any one of the preceding claims. The number of the ventilation devices is plural,
The control unit is
When it is determined that the first heat load is a cooling load, further, among the plurality of ventilation devices, a load share of the ventilation device including the second heat exchanger that takes in air from a low temperature area is set to be larger than a load share of the other ventilation devices;
When it is determined that the first heat load is a heating load, a load share of the ventilation device including the second heat exchanger that takes in air from a high temperature area among the plurality of ventilation devices is set to be larger than a load share of the other ventilation devices.
13. An air conditioning system according to claim 12. The first air flow path has a plurality of air supply ports that supply air to the indoor space,
The second air flow path has a plurality of exhaust ports that take in air from the indoor space.
An air conditioning system according to any one of the preceding claims. The control unit further adds up an amount of humidification or dehumidification required for a first region of the indoor space and an amount of humidification or dehumidification required for a second region of the indoor space, and performs temperature control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner based on a result of the addition.
An air conditioning system according to any one of the preceding claims. The control unit further performs humidity control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner so that the average humidity of the indoor space becomes the target humidity based on a relative humidity distribution in the indoor space when the control unit receives an input of the target humidity in the indoor space.
An air conditioning system according to any one of the preceding claims. The first air flow path has a plurality of air supply ports that supply air to the indoor space, and has a first air volume adjustment mechanism that adjusts an air volume for each air supply port,
The second air flow path has a plurality of exhaust ports that take in air from the indoor space, and also has a second air volume adjustment mechanism that adjusts the air volume for each exhaust port,
The control unit further controls, for each of the air intake ports, a first air volume adjustment mechanism corresponding to the air intake port, and controls, for each of the air exhaust ports, the second air volume adjustment mechanism corresponding to the air exhaust port.
An air conditioning system according to any one of the preceding claims. The ventilation device is provided in each of the first area of the indoor space and the second area of the indoor space,
the control unit is configured to obtain a target humidification amount indicating a humidification amount required for the indoor space, and when humidifying the indoor space at the target humidification amount, compare an air temperature of a first area in the indoor space with an air temperature of a second area in the indoor space, and allocate a larger amount of humidification to the area with a higher temperature than to the area with a lower temperature.
2. The air conditioning system of claim 1. a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside , a first casing that houses the first heat exchanger and at least a portion of the first air flow path, and a second casing that houses the second heat exchanger and at least a portion of the second air flow path;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first casing and the second casing are separable,
the control unit adds an amount of humidification or dehumidification required for a first region of the indoor space to an amount of humidification or dehumidification required for a second region of the indoor space that is different from the first region, and performs temperature control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner based on a result of the addition.
Air conditioning system. a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside , a first casing that houses the first heat exchanger and at least a portion of the first air flow path, and a second casing that houses the second heat exchanger and at least a portion of the second air flow path;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first casing and the second casing are separable,
The control unit further performs humidity control using the first heat exchanger of the ventilation device and the third heat exchanger of the air conditioner so that the average humidity of the indoor space becomes the target humidity based on a relative humidity distribution in the indoor space when the control unit receives an input of the target humidity in the indoor space.
Air conditioning system. a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air flow path for supplying air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a second heat exchanger functioning as a condenser or an evaporator, a second air flow path for exhausting the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside , a first casing that houses the first heat exchanger and at least a portion of the first air flow path, and a second casing that houses the second heat exchanger and at least a portion of the second air flow path;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first casing and the second casing are separable,
The first air flow path has a plurality of air supply ports that supply air to the indoor space, and has a first air volume adjustment mechanism that adjusts the amount of air supplied to each air supply port,
The second air flow path has a plurality of exhaust ports that take in air from the indoor space, and also has a second air volume adjustment mechanism that adjusts the amount of air taken in for each exhaust port,
the control unit controls, for each of the air intake ports, a first air volume adjustment mechanism corresponding to the air intake port, and controls, for each of the air exhaust ports, the second air volume adjustment mechanism corresponding to the air exhaust port.
Air conditioning system. Further comprising a plurality of detection units for detecting the temperature of the air in the indoor space,
The control unit is
Controlling the first air volume adjustment mechanism corresponding to the air supply port provided near an area where there is a large difference between the temperature indicated by the temperature distribution in the indoor space based on the detection results of the plurality of detection units and the input target temperature so that the amount of air supplied by the other first air volume adjustment mechanisms is increased; or
the second air volume adjustment mechanism corresponding to the exhaust port provided in the vicinity of an area where there is a large difference between the temperature indicated by the temperature distribution in the indoor space based on the detection results of the plurality of detection units and the input target temperature is controlled so that the amount of air taken in is larger than that of the other second air volume adjustment mechanisms;
22. An air conditioning system according to claim 21. The control unit is
storing first position information indicating a position of each of the air supply ports and second position information indicating a position of each of the air exhaust ports;
controlling the first air volume adjustment mechanism and the second air volume adjustment mechanism based on a position of the air supply port indicated by the first position information and a position of the air supply port indicated by the second position information;
22. An air conditioning system according to claim 21. a wireless receiver installed for at least one of the air intake port and the air exhaust port;
A detector capable of wirelessly communicating with the wireless receiver and detecting temperature or humidity,
The control unit is
Identifying a position of the detector based on the signal strength of the detector acquired from the wireless receiver and the first position information or the second position information;
based on a detection result of the detector, controlling the first airflow adjustment mechanism of the air supply port located near the position of the detector, or the second airflow adjustment mechanism of the air exhaust port located near the position of the detector.
24. An air conditioning system according to claim 23. A third air flow path is further provided to transport air from a first opening provided near the air supply port in a fifth area of the indoor space to a second opening provided in a sixth area of the indoor space,
The control unit controls the amount of air flowing through the third air flow path.
22. An air conditioning system according to claim 21. a heat transfer device including a second compressor, a fourth heat exchanger provided in a seventh region of the indoor space and functioning as a condenser or an evaporator, a fifth heat exchanger provided in an eighth region of the indoor space and functioning as a condenser or an evaporator, and a second refrigerant circuit in which the second compressor, the fourth heat exchanger, and the fifth heat exchanger are connected by a refrigerant piping and a refrigerant flows therethrough,
The control unit causes the fourth heat exchanger to function as one of a condenser and an evaporator, and causes the fifth heat exchanger to function as the other of the condenser and the evaporator.
22. An air conditioning system according to claim 21. Further comprising a ventilation mechanism for exhausting air from the indoor space to the outdoors,
The control unit adjusts the amount of air exhausted by the ventilation device and the amount of air to be exhausted based on the amount of air exhausted by the ventilation mechanism.
27. An air conditioning system according to any one of claims 21 to 26. Each of the plurality of air intake ports is provided in an indoor space different from each of the plurality of exhaust ports,
When an amount of air taken in from at least one of the plurality of exhaust ports changes, the control unit adjusts, using the second air volume adjustment mechanism, an amount of air taken in from another of the plurality of exhaust ports so that a total amount of air supplied from the plurality of air inlets and a total amount of air taken in from the exhaust port approximately match each other.
22. An air conditioning system according to claim 21. a third airflow adjustment mechanism that adjusts an amount of the air taken in from the outdoors and flowing through the first air flow path from the first heat exchanger to the indoor space;
a fourth airflow adjustment mechanism that adjusts the amount of air flowing from the indoor space through the second air flow path to the outdoor space through the second heat exchanger,
The control unit sets the amount of air supplied by the third air volume adjustment mechanism and the amount of air taken in by the fourth air volume adjustment mechanism to be different from each other based on the amount of air supplied or exhausted by another device.
An air conditioning system according to any one of the preceding claims. The number of the ventilation devices is plural,
Each of the ventilation devices further includes a third airflow rate adjustment mechanism that adjusts an amount of air flowing from the first heat exchanger to the indoor space through the first air flow path, and a fourth airflow rate adjustment mechanism that adjusts an amount of air flowing from the indoor space through the second air flow path to the outdoor space through the second heat exchanger,
The control unit adjusts an amount of air supplied by the third air volume adjustment mechanism and an amount of air taken in by the fourth air volume adjustment mechanism in the indoor space so that they are substantially equal to each other.
An air conditioning system according to any one of the preceding claims. a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air volume adjustment mechanism that supplies air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a first casing that houses the first heat exchanger and the first air volume adjustment mechanism, a second heat exchanger functioning as a condenser or an evaporator, a second air volume adjustment mechanism that exhausts the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a second casing that houses the second heat exchanger and the second air volume adjustment mechanism, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner;
The first casing and the second casing are separable and are provided at different heights.
Air conditioning system. a ventilation device having a compressor, a first heat exchanger functioning as a condenser or an evaporator, a first air volume adjustment mechanism that supplies air taken in from outdoors to an indoor space after passing the air through the first heat exchanger, a first casing that houses the first heat exchanger and the first air volume adjustment mechanism, a second heat exchanger functioning as a condenser or an evaporator, a second air volume adjustment mechanism that exhausts the air taken in from the indoor space to the outdoors after passing the air through the second heat exchanger, a second casing that houses the second heat exchanger and the second air volume adjustment mechanism, and a refrigerant circuit in which the compressor, the first heat exchanger, and the second heat exchanger are connected by refrigerant piping and a refrigerant flows inside;
an air conditioner having a third heat exchanger functioning as a condenser or an evaporator, and an air conditioning indoor unit that draws in air from the indoor space, exchanges heat with a refrigerant flowing through the third heat exchanger, and exhausts the air to the indoor space;
A control unit that controls the ventilation device and the air conditioner,
The first casing and the second casing are separable,
The control unit is
A first capacity indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capacity indicating a heat load that can be output corresponding to the power consumption of the air conditioner are stored;
Acquire the temperature of the indoor space;
According to the first capacity and the second capacity, a first heat load that needs to be adjusted in the indoor space, which is calculated based on the temperature of the indoor space, is set to be shared between the ventilation device and the air conditioner;
The first casing further includes a first switching mechanism capable of switching an air intake destination between the outdoor space and the indoor space,
The second casing further includes a second switching mechanism capable of switching the destination of the air discharge between the outdoor space and the indoor space.
Air conditioning system.

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