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WO2024017050A1 - Procédé de commande pour dispositif de conditionnement d'environnement, dispositif de conditionnement d'environnement et support de stockage - Google Patents

Procédé de commande pour dispositif de conditionnement d'environnement, dispositif de conditionnement d'environnement et support de stockage Download PDF

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Publication number
WO2024017050A1
WO2024017050A1 PCT/CN2023/105396 CN2023105396W WO2024017050A1 WO 2024017050 A1 WO2024017050 A1 WO 2024017050A1 CN 2023105396 W CN2023105396 W CN 2023105396W WO 2024017050 A1 WO2024017050 A1 WO 2024017050A1
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WO
WIPO (PCT)
Prior art keywords
fresh air
air
state
sub
indoor
Prior art date
Application number
PCT/CN2023/105396
Other languages
English (en)
Chinese (zh)
Inventor
曹磊
黄汝普
侯泽飞
杨晓东
邵艳坡
张�浩
Original Assignee
广东美的制冷设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东美的制冷设备有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2024017050A1 publication Critical patent/WO2024017050A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of environmental adjustment equipment, and in particular to a control method of an environmental adjustment equipment, an environmental adjustment equipment and a storage medium.
  • Air conditioners are used more and more widely in daily life and production.
  • the refrigerant required for the operation of air conditioners is generally flammable. When leakage occurs, it can easily cause the space where the air conditioner is located to burn or explode, leading to safety accidents.
  • the main purpose of this application is to provide a control method of environmental adjustment equipment, environmental adjustment equipment and storage media, aiming to avoid safety accidents when refrigerant leaks in air conditioners and improve the safety of use of air conditioners.
  • the present application provides a control method of environmental adjustment equipment, which includes an air conditioner and a fresh air device.
  • the control method of the environmental adjustment equipment includes the following steps:
  • the fresh air device When the combustible gas concentration is greater than the preset concentration, the fresh air device is controlled to operate so that the air in the target space where the environmental conditioning equipment is located is discharged outdoors through the fresh air device.
  • the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct, a first air duct connected to the fresh air outlet and the fresh air inlet, and a first air duct connected to the indoor air outlet. and a second air duct of the fresh air outlet.
  • the fresh air device further includes a switch assembly and a fresh air fan provided in the second air duct. The fresh air device is controlled to operate so that the air in the indoor space passes through the
  • the steps for the fresh air device to discharge the outdoor air include:
  • the air duct and the fresh air inlet are discharged outdoors.
  • a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is The ventilation opening is provided corresponding to the fresh air inlet.
  • the switch assembly includes a first switch module, a second switch module and a third switch module. The step of controlling the switch assembly to operate in the first state includes:
  • the first state includes the first sub-state, the second sub-state and the third sub-state.
  • the fresh air outlet is closed and the first vent is opened.
  • the block opens the indoor air vent, and in the third sub-state, the second vent is closed.
  • the step of controlling the switch component to operate in the first state includes:
  • the control of the fresh air fan operation is performed and the switch assembly is controlled to operate in the first state, so that the fresh air outlet is closed and the air in the target space is The steps of sequentially passing through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet to discharge the outdoor air;
  • the fresh air fan is controlled to operate and the switch assembly is controlled to operate in a third state, so that the fresh air outlet is opened and the air in the target space passes through in sequence.
  • the indoor air outlet, the second air duct, the first air duct and the fresh air inlet are discharged outdoors, and the air in the indoor air duct passes through the second air duct, the first air duct and The fresh air inlet is discharged outdoors.
  • the step further includes:
  • the fresh air fan is controlled to operate and the switch assembly is controlled to operate in the second state, so that the outdoor fresh air passes through the fresh air inlet, the first air inlet, and the first air inlet.
  • the duct, the second air duct and the fresh air outlet are sent into the indoor space.
  • a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is The ventilation opening is provided corresponding to the fresh air inlet.
  • the switch assembly includes a first switch module, a second switch module and a third switch module. The step of controlling the switch assembly to operate in the second state includes:
  • the second state includes the fourth sub-state, the fifth sub-state and the sixth sub-state.
  • the fresh air outlet is opened and the first vent is closed
  • the indoor air vent is closed
  • the second vent is opened.
  • the step of controlling the operation of the fresh air fan includes:
  • the fresh air fan is controlled to run at a speed greater than a preset speed.
  • the step of controlling the fresh air fan to operate at a rotational speed greater than a preset rotational speed includes:
  • the fresh air fan is controlled to operate at the target speed.
  • the step before the step of controlling the operation of the fresh air device so that the air in the target space where the environmental conditioning equipment is located is discharged outdoors through the fresh air device, the step further includes:
  • the load in the air conditioner is controlled to be turned off; and/or, when the combustible gas concentration is greater than the preset concentration, the environment adjustment device is controlled to output prompt information.
  • an environment adjustment device which includes:
  • the air conditioner and the fresh air device are both connected to the control device.
  • the control device includes: a memory, a processor, and an environment adjustment device stored in the memory and operable on the processor. When the control program of the environment adjustment device is executed by the processor, the steps of the control method of the environment adjustment device as described in any of the above items are implemented.
  • the present application also proposes a storage medium on which a control program of the environment adjustment device is stored.
  • a control program of the environment adjustment device is stored on which a control program of the environment adjustment device is stored.
  • the control program of the environment adjustment device is executed by the processor, any one of the above items is implemented. Steps of the control method of environmental conditioning equipment.
  • This application proposes a control method for environmental conditioning equipment, based on the environmental conditioning equipment including an air conditioner and a fresh air device.
  • This method indicates that the air conditioner has refrigerant leakage when the concentration of combustible gas in the indoor air duct of the air conditioner is greater than the preset concentration.
  • a fresh air device is used to discharge the air in the target space where the environmental conditioning equipment is located to the outside to avoid safety accidents such as combustion or explosion caused by excessive flammable gas concentration in the target space, thus improving the safety of air conditioners.
  • Figure 1 is a schematic structural diagram of an embodiment of the environmental conditioning equipment of the present application.
  • Figure 2 is a schematic diagram of the internal structure of the fresh air device in the environmental conditioning equipment of this application;
  • Figure 3 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental adjustment device of the present application.
  • Figure 4 is a schematic flow chart of an embodiment of the control method of the environmental adjustment equipment of the present application.
  • Figure 5 is a schematic flow chart of another embodiment of the control method of the environmental adjustment equipment of the present application.
  • Figure 6 is a schematic flowchart of another embodiment of the control method of the environmental adjustment equipment of the present application.
  • the embodiment of the present application provides an environment adjustment device.
  • the environment conditioning equipment includes an air conditioner 1 , a fresh air device 2 and a control device 3 .
  • the air conditioner 1 includes an indoor unit, which includes an indoor air duct and an indoor heat exchanger 11 and an indoor fan 12 located in the indoor air duct.
  • the indoor air duct is connected to the fresh air outlet 201 of the fresh air device 2 .
  • the air conditioner 1 and the fresh air device 2 are both connected to the control device 3 .
  • the air conditioner 1 and the fresh air device 2 can also be set up independently, that is, the air ducts of the two devices are not connected, and the air outlets of the two devices are connected to the indoor space respectively.
  • the air conditioner 1 is a duct air conditioner. In other embodiments, the air conditioner 1 may also be other types of air conditioners, such as wall-mounted air conditioners, cabinet air conditioners, window air conditioners, etc.
  • the indoor environment where the environmental adjustment equipment is located may have a first space and a second space separated, the first space is used to install the environmental adjustment equipment, the second space is the space required to be adjusted by the environmental adjustment equipment, and the air conditioner
  • the indoor air outlet 101 of 1 is connected to the second space.
  • the air conditioner 1 is a duct machine air conditioner
  • the first space is a ceiling space in an indoor environment.
  • the indoor unit and the fresh air device 2 of the duct machine air conditioner can both be installed in the first space.
  • the air conditioner 1 is a window air conditioner
  • the first space can be an installation space where the indoor environment is located in the wall, and both the window air conditioner and the fresh air device 2 can be installed in the wall space.
  • the air conditioner 1 includes a housing, which is provided with an indoor air duct and an indoor heat exchanger 11 and an indoor fan 12 located in the indoor air duct.
  • the housing is provided with an indoor air outlet 101 and an indoor return air outlet 102 that communicate with the indoor environment.
  • the indoor fan 12 When the indoor fan 12 is turned on, it can drive the air in the indoor environment to enter the indoor air duct from the indoor return air outlet 102 and exchange heat with the indoor heat exchanger 11.
  • the heat-exchanged air can be sent into the room through the indoor air outlet 101.
  • the first space may be provided with an air outlet connected to the second space.
  • the indoor return air outlet 102 is connected with the air outlet through a pipe.
  • the air in the second space may enter the pipe through the air outlet and enter the indoor air duct through the indoor return air outlet 102.
  • the fresh air device 2 is provided with a fresh air inlet 202, a fresh air outlet 201 and a fresh air duct connecting the fresh air inlet 202 and the fresh air outlet 201.
  • the fresh air outlet 201 is connected to the indoor air duct, and the fresh air inlet 202 is used to communicate with the outdoor environment.
  • the fresh air device 2 is detachably connected to the air conditioner 1 and can be installed on the indoor unit of the air conditioner 1 according to customer needs.
  • the type of the fresh air device 2 can be selected by the customer.
  • the fresh air device 2 can be installed on the side wall of the indoor unit of the air conditioner 1, and the fresh air outlet 201 can be provided through the side wall of the indoor unit of the air conditioner 1.
  • the side wall here can include the upper side wall and the lower side wall of the indoor unit of the air conditioner 1. One of the side wall, left wall, and right wall.
  • the fresh air outlet 201 may be provided with a fresh air valve, and the fresh air valve may be used to open or close the fresh air outlet 201.
  • the fresh air inlet 202 can be provided with a detachable purification module (such as a HEPA filter, etc.), which can be used to purify fresh air.
  • the fresh air outlet 201 of the fresh air device 2 is connected with the air inlet side of the indoor heat exchanger 11 . Specifically, the fresh air outlet 201 is located between the indoor return air outlet 102 and the indoor heat exchanger 11 . In other embodiments, the fresh air outlet 201 of the fresh air device 2 can also be connected with the air outlet side of the indoor heat exchanger 11 , and the fresh air outlet 201 is located between the indoor air outlet 101 and the indoor heat exchanger 11 .
  • the fresh air fan 21 may not be provided in the fresh air device 2 , and the fresh air is introduced through the control of the fresh air valve on the fresh air outlet 201 and the driving of the indoor fan 12 .
  • the fresh air outlet 201 can also be directly connected to the indoor space.
  • the fresh air device 2 in addition to the fresh air inlet 202 and the fresh air outlet 201, is also provided with an indoor air outlet 203.
  • the indoor air outlet 203 is connected to the above-mentioned first space. In other embodiments, the indoor air outlet 203 may also be connected to the above-mentioned second space.
  • the fresh air duct includes a first air duct 01 and a second air duct 02.
  • the first air duct 01 connects the fresh air outlet 201 and the fresh air inlet 202
  • the second air duct 02 connects the indoor air outlet 203 and the fresh air outlet 201.
  • a first vent 03 and a second vent 04 are provided between the first air duct 01 and the second air duct 02.
  • the first vent 03 is provided corresponding to the fresh air outlet 201
  • the second vent 03 is provided corresponding to the fresh air outlet 201.
  • the ventilation opening 04 is provided corresponding to the fresh air inlet 202 .
  • the fresh air fan 21 is located in the second air duct 02.
  • the fresh air device 2 also includes a switch assembly 22, which is used to adjust the flow direction of the air in the fresh air device between the first air duct 01 and the second air duct 02.
  • the switch assembly 22 includes a first switch module 221 , a second switch module 222 and a third switch module 223 .
  • the first switch module 221 , the second switch module 222 and the third switch module 223 are all connected to the control device 3 .
  • both the first switch module 221 and the second switch module 222 are switching valves.
  • the third switch module 223 is a switching grille.
  • the first switch module 221, the second switch module 222, and the third switch module 223 can also be configured as other types of switches according to requirements.
  • the first switch module 221 is used to adjust the flow direction of the air out of the second air duct 02 between the fresh air outlet 201 and the first air duct 01 .
  • the first switch module 221 is movable between a first position and a second position. When the first switch module 221 is in the first position, the fresh air outlet 201 is closed and the first vent 03 is opened. When the first switch module 221 is in the second position, the fresh air outlet 201 is opened and the first vent 03 is closed. In addition, when the first switch module 221 is in the fifth position between the first position and the second position, the fresh air outlet 201 and the first vent 03 can be opened at the same time.
  • the first channel opening and the fresh air outlet 201 are both located on the air outlet side of the fresh air fan 21.
  • the fresh air fan 21 drives the air in the second air duct 02 from the second air outlet.
  • a vent 03 flows into the first air duct 01 and then is discharged outdoors from the fresh air inlet 202.
  • the fresh air fan 21 drives the air in the second air duct 02 to be sent from the fresh air outlet 201 into the indoor air duct. Or directly into the indoor space.
  • the direction of the fresh air fan 21 can be switched, and the first passage opening and the fresh air outlet 201 can also be switched to the air inlet side of the fresh air fan 21 .
  • the second switch module 222 is used to open or close the indoor air outlet 203.
  • the second switch module 222 is movable between the third position and the fourth position. When the second switch module 222 is in the third position, the indoor air outlet 203 is opened, and when the second switch module 222 is in the fourth position, the indoor air outlet 203 is closed.
  • the indoor air outlet 203 is provided on the air inlet side of the fresh air fan 21. When the second switch module 222 is in the third position, the fresh air fan 21 drives indoor air from the indoor air outlet 203 into the second air duct 02.
  • the third switch module 223 is used to open or close the second vent 04.
  • the second vent 04 is opened; when the third switch module 223 is in the closed state, the second vent 04 is closed.
  • the second vent 04 is provided on the air inlet side of the fresh air fan 21.
  • the fresh air fan 21 drives the outdoor fresh air to enter the first air duct 01 from the fresh air outlet 201 and then directly pass through.
  • the second vent 04 enters the second air duct 02 .
  • the fresh air device 2 includes a first operating mode and a second operating mode.
  • the first switch module 221 operates in the first sub-state (in the above-mentioned first position)
  • the second switch module 222 operates in the second sub-state (in the above-mentioned first position).
  • the third position) and the third switch module 223 operates in a third sub-state (in a closed state).
  • the first switch module 221 closes the fresh air outlet 201 and opens the third A vent 03
  • the second switch module 222 opens the indoor air vent 203 in the second sub-state
  • the third switch module 223 closes the second vent 04 in the third sub-state, fresh air
  • the fan 21 drives the indoor air to be discharged outdoors through the indoor air outlet 203, the second air duct 02, the first vent 03, the first air duct 01 and the fresh air inlet 202 in sequence.
  • the first switch module 221 operates in the fourth sub-state (in the above-mentioned second position)
  • the second switch module 222 operates in the fifth sub-state (in the above-mentioned third position).
  • the third switch module 223 operates in the sixth sub-state (in the open state).
  • the first switch module 221 opens the fresh air outlet 201 and closes the first ventilation Port 03.
  • the second switch module 222 closes the indoor air vent 203.
  • the third switch module 223 opens the second vent 04.
  • the fresh air fan 21 The outdoor fresh air is driven into the room through the fresh air inlet 202, the first air duct 01, the second vent 04, the second air duct 02 and the fresh air outlet 201 in sequence.
  • the air conditioner 1 in the first space, includes an indoor unit, and the control device 3 and the fresh air device 2 are located on opposite sides of the indoor unit.
  • a flammable gas sensor 4 is provided in the indoor air duct, and the flammable gas sensor 4 is used to detect the concentration of flammable gas in the indoor air duct.
  • the combustible gas sensor 4 is connected to the control device 3, and the control device 3 can obtain the data detected by the combustible gas sensor 4.
  • the control device 3 of the environment adjustment equipment includes: a processor 1001 (such as a CPU), a memory 1002, a timer 1003, etc. Each component in the control device 3 is connected via a communication bus.
  • the memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory.
  • the memory 1002 may also be a storage device independent of the aforementioned processor 1001.
  • the device structure shown in Figure 2 does not constitute a limitation of the device, and may include more or fewer components than shown, or combine certain components, or arrange different components.
  • the memory 1002 as a storage medium may include a control program for the environment adjustment device.
  • the processor 1001 can be used to call the control program of the environment adjustment equipment stored in the memory 1002 and execute the relevant steps of the control method of the environment adjustment equipment in the following embodiments.
  • Embodiments of the present application also provide a control method for environmental adjustment equipment, which is applied to the above-mentioned environmental adjustment equipment.
  • control method of the environment adjustment device includes:
  • Step S10 obtain the combustible gas concentration of the indoor air duct of the air conditioner
  • step S10 here may be performed when the air conditioner is powered on. In other embodiments, step S10 here may also be executed at a preset time interval after the air conditioner is powered on.
  • the combustible gas concentration can be detected by the above-mentioned combustible gas sensor, and the combustible gas concentration can be obtained by the currently detected data of the combustible gas sensor.
  • Step S20 When the combustible gas concentration is greater than the preset concentration, control the operation of the fresh air device so that the air in the target space where the environmental conditioning equipment is located is discharged outdoors through the fresh air device.
  • the target space here is the above-mentioned first space.
  • the target space when the indoor space is not divided into the first space and the second space, and the fresh air outlet is directly connected to the indoor space, the target space can also be directly the indoor space where the environmental conditioning device is located.
  • the preset concentration is the critical value used to distinguish whether the air conditioner has a risk of refrigerant leakage.
  • the preset concentration is a preset fixed concentration value.
  • the preset concentration can also be obtained based on the current temperature value of the target space, and the specific preset concentration can be negatively correlated with the temperature value. That is to say, the lower the temperature value, the higher the preset concentration can be, and the higher the temperature value, the lower the preset concentration can be.
  • the fresh air device may have a first operating mode and a second operating mode.
  • the fresh air device introduces fresh air indoors
  • the second operating mode the fresh air device discharges fresh air outdoors.
  • the flow direction of the air in the fresh air device is different in the first operating mode and the second operating mode.
  • the fresh air device can be switched in different operating modes based on the switching of the rotation direction of the fresh air fan.
  • the fresh air fan is set with a first rotation direction and a second rotation direction. When the fresh air fan operates in the first rotation direction, fresh air is introduced into the room. When the fan operates in the second rotation direction, the indoor air is discharged to the outside.
  • the fresh air device can be switched in different operating modes based on the position or state change of the flow direction switching component (such as the above-mentioned switch component) provided in the air duct.
  • the flow direction switching component has a first operating state and a second operating device
  • the flow direction switching component has a first operating state and a second operating device.
  • An embodiment of the present application proposes a method for controlling environmental conditioning equipment, based on the environmental conditioning equipment including an air conditioner and a fresh air device.
  • This method indicates that the air conditioner has refrigerant when the concentration of combustible gas in the indoor air duct of the air conditioner is greater than the preset concentration.
  • a fresh air device is used to discharge the air in the target space where the environmental conditioning equipment is located to the outside to avoid safety accidents such as combustion or explosion caused by excessive flammable gas concentration in the target space, thus improving the safety of air conditioners.
  • the fresh air device is provided with an indoor air outlet, a fresh air inlet, a fresh air outlet connected to the indoor air duct, a first air duct connected to the fresh air outlet and the fresh air inlet, and a first air duct connected to the indoor air outlet. and the second air duct of the fresh air outlet.
  • the fresh air device also includes a switch assembly and a fresh air fan located in the second air duct.
  • Step S21 when the combustible gas concentration is greater than the preset concentration, control the fresh air fan to operate and control the switch assembly to operate in the first state, so that the fresh air outlet is closed and the air in the target space passes through the The indoor air outlet, the second air duct, the first air duct and the fresh air inlet are discharged outdoors.
  • a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is The ventilation opening is provided corresponding to the fresh air inlet, and the switch assembly includes a first switch module, a second switch module and a third switch module.
  • the second vent and the indoor air outlet are located on the air inlet side of the fresh air fan, and the fresh air outlet is located on the air outlet side of the fresh air fan.
  • the first switch module is controlled to operate in a first sub-state
  • the second switch module is controlled to operate in a second sub-state
  • the third switch module is controlled to operate in a third sub-state;
  • the first state includes the The first sub-state, the second sub-state and the third sub-state.
  • the fresh air outlet is closed and the first vent is opened.
  • the second sub-state all blocks are opened.
  • the indoor air outlet the second air outlet is closed in the third sub-state. Based on this, the fresh air fan drives the air to pass through the indoor air outlet, the second air duct, the first vent, the first air duct and the fresh air inlet in sequence and then discharges outdoors.
  • the specific path is shown in Figure 2(a).
  • the switch assembly may also include a fourth switch module provided at the fresh air inlet in other embodiments.
  • the first switch module and the second switch module can also be combined into a fourth switch module, and the fourth switch module can move between the indoor air inlet and the fresh air outlet.
  • the fourth switch module can be moved to a position to close the fresh air outlet and be spaced apart from the indoor air outlet.
  • the fresh air device can discharge indoor air containing flammable refrigerant to the outside through state control of the switch assembly.
  • the air with the risk of explosion in the target space can be achieved. Quickly discharge to the outside.
  • the fresh air fan when the combustible gas concentration is greater than the preset concentration, can also be controlled to operate and the switch assembly can be controlled to operate in the third state, so that the fresh air outlet is opened and the air in the indoor air duct is sequentially The air is discharged outdoors through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet.
  • the opposite sides in the air flow direction are defined as the first side and the second side respectively.
  • the indoor air inlet and the fresh air outlet can be arranged on the first side, and the fresh air inlet can be arranged on the second side.
  • the fresh air fan can be controlled to operate in the first direction to drive indoor air from the indoor air inlet into the fresh air device and be discharged from the fresh air inlet to the outside.
  • the step of controlling the switch component to operate in the first state includes:
  • the control of the fresh air fan operation is performed and the switch assembly is controlled to operate in the first state, so that the fresh air outlet is closed and the air in the target space is The steps of sequentially passing through the indoor air outlet, the second air duct, the first air duct and the fresh air inlet to discharge the outdoor air;
  • the fresh air fan is controlled to operate and the switch assembly is controlled to operate in a third state, so that the fresh air outlet is opened and the air in the target space passes through in sequence.
  • the indoor air outlet, the second air duct, the first air duct and the fresh air inlet are discharged outdoors, and the air in the indoor air duct passes through the second air duct, the first air duct and The fresh air inlet is discharged outdoors.
  • the preset concentration difference is specifically a critical value used to distinguish the risk of refrigerant leakage in the air conditioner.
  • the switch assembly includes the above-mentioned first switch module, second switch module and third switch module
  • the first switch module can operate in the seventh sub-state
  • the second switch module can operate in the fifth sub-state
  • the third switch module can operate in the seventh sub-state.
  • the sixth sub-state is running
  • the third state includes the seventh sub-state, the fifth sub-state and the sixth sub-state.
  • both the fresh air outlet and the first channel opening are open.
  • the target position of the first switch module in the seventh sub-state can be determined according to the concentration difference value. Different concentration difference values result in different target positions.
  • the target position is between the first position and the second position, and the first position is the third position.
  • the first switch module is a position when closing the fresh air outlet
  • the second position is a position when the first switch module closes the first vent.
  • the concentration difference is less than or equal to the preset concentration difference, it indicates that the risk of leakage is small and the possibility of safety accidents such as explosions is low. Closing the fresh air outlet at this time will help expedite the discharge of air mixed with flammable refrigerant in the target space to the outside. efficiency, and can avoid indoor heat loss caused by air in the indoor environment being discharged to the outside, improving the operating safety of the air conditioner while ensuring indoor comfort; the concentration difference is greater than the preset concentration difference, indicating a greater risk of leakage, explosion, etc. The possibility of safety accidents is high. At this time, opening the fresh air outlet allows the high concentration of flammable refrigerant in the indoor air duct and the flammable refrigerant in the target space to be quickly discharged to the outside, thereby further improving the safety of the air conditioner.
  • step S10 another embodiment of the control method of the environmental adjustment equipment of the present application is proposed.
  • step S10 the following steps are also included:
  • Step S30 when the combustible gas concentration is less than or equal to the preset concentration, control the fresh air fan to operate and control the switch assembly to operate in the second state, so that outdoor fresh air passes through the fresh air inlet, the The first air duct, the second air duct and the fresh air outlet are sent into the indoor space.
  • a first vent and a second vent are provided between the first air duct and the second air duct, the first vent is provided corresponding to the fresh air outlet, and the second vent is The vent is arranged corresponding to the fresh air inlet.
  • the switch assembly includes a first switch module, a second switch module and a third switch module. The first switch module is controlled to operate in the fourth sub-state and the second switch module is controlled. Operate in the fifth sub-state, and control the third switch module to operate in the sixth sub-state;
  • the second state includes the fourth sub-state, the fifth sub-state and the sixth sub-state.
  • the fresh air outlet is opened and the first vent is closed
  • the indoor air vent is closed
  • the second vent is opened.
  • the fresh air fan drives the air to pass through the fresh air inlet, the first air duct, the second vent, the second air duct and the fresh air outlet in order and then is sent indoors.
  • the specific path is shown in Figure 2(b).
  • the switch assembly may also include a fourth switch module located at the fresh air inlet.
  • the first switch module and the second switch module can also be combined into a fourth switch module, and the fourth switch module can move between the indoor air inlet and the fresh air outlet.
  • the fourth switch module can be moved to a position to close the indoor air outlet and be spaced apart from the fresh air outlet.
  • the opposite sides in the air flow direction are defined as the first side and the second side respectively.
  • the indoor air inlet and the fresh air outlet can be arranged on the first side, and the fresh air inlet can be arranged on the second side.
  • the fresh air fan can be controlled to operate in the second direction to drive indoor air into the fresh air device from the fresh air inlet and discharged from the fresh air outlet to the outdoors.
  • the step of controlling the operation of the fresh air fan includes: controlling the fresh air fan to operate at a rotational speed greater than a preset rotational speed.
  • the fresh air fan operates at a maximum rotational speed, which is greater than the preset rotational speed. In other embodiments, the fresh air fan can also operate at a rotational speed greater than the preset rotational speed and smaller than the maximum rotational speed.
  • the preset rotation speed may be 70% of the maximum rotation speed.
  • the fresh air fan operates at a speed greater than the preset speed, that is, the fresh air fan operates at a high speed, which is beneficial to improving the efficiency of discharging flammable refrigerant outdoors.
  • the step of controlling the fresh air fan to operate at a rotational speed greater than a preset rotational speed includes: determining the concentration difference between the combustible gas concentration and the preset concentration; according to the The concentration difference determines the target speed within a speed range greater than or equal to the preset speed; the fresh air fan is controlled to operate at the target speed.
  • concentration differences correspond to different target speeds.
  • the concentration difference is positively correlated with the target rotation speed.
  • the corresponding relationship between the concentration difference and the target rotation speed can be established in advance, and the corresponding relationship can include mapping relationships, calculation formulas, etc.
  • the target speed corresponding to the current concentration difference can be determined within the speed range.
  • the rotation speed adjustment value can be determined based on the concentration difference, and the preset rotation speed can be adjusted according to the rotation speed adjustment value to obtain the target rotation speed.
  • the corresponding relationship between the concentration difference and the target rotation speed can be obtained according to the current air pressure value of the target space, and different air pressure values can correspond to different corresponding relationships.
  • more than one correspondence relationship between the concentration difference value and the target rotation speed can be preset, the target correspondence relationship is determined in more than one correspondence relationship according to the air pressure value, and the current concentration difference value corresponding to the current concentration difference value is determined based on the target correspondence relationship. target speed.
  • determining the target speed of the fresh air fan based on the concentration difference is helpful to ensure that the operation of the fresh air fan accurately matches the leakage risk of flammable refrigerant, ensuring the safety of the air conditioner while avoiding the entry of outdoor pollutants due to indoor negative pressure. indoor.
  • the operation of the fresh air device is controlled to make the target space where the environment adjustment equipment is located.
  • the operation of the fresh air device is controlled to make the target space where the environment adjustment equipment is located.
  • the load in the air conditioner is controlled to be turned off; and/or, when the combustible gas concentration is greater than the preset concentration, the environment adjustment device is controlled to output prompt information.
  • the load here may include the compressor of the air conditioner and/or the indoor fan, etc.
  • the form of prompt information may include text information, image information, sound information and/or light information, etc.
  • load shutdown is helpful to further avoid explosion accidents during the operation of the air conditioner and further improve the safety of the air conditioner.
  • the output of prompt information can prompt the user to check whether there is a refrigerant leakage in the air conditioner, thereby further improving the safety of the air conditioner.
  • embodiments of the present application also propose a storage medium on which a control program for an environment adjustment device is stored.
  • a control program for an environment adjustment device is stored.
  • the control program for the environment adjustment device is executed by a processor, any of the above control methods for the environment adjustment device can be implemented. Relevant steps of the embodiment.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM) as mentioned above. , magnetic disk, optical disk), including several instructions to cause a terminal device (which can be a mobile phone, a computer, a server, an environmental adjustment device, or a network device, etc.) to execute the methods described in various embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente demande divulgue un procédé de commande pour un dispositif de conditionnement d'environnement, un dispositif de conditionnement d'environnement et un support de stockage. Le dispositif de conditionnement d'environnement comprend un climatiseur et un appareil à air frais. Le procédé comprend : l'acquisition de la concentration d'un gaz combustible dans un conduit d'air intérieur du climatiseur ; et, lorsque la concentration du gaz combustible est supérieure à une concentration prédéfinie, la commande de l'appareil à air frais pour qu'il fonctionne, de telle sorte que l'air dans un espace cible où le dispositif de conditionnement d'environnement est situé est évacué à l'extérieur au moyen de l'appareil à air frais.
PCT/CN2023/105396 2022-07-19 2023-06-30 Procédé de commande pour dispositif de conditionnement d'environnement, dispositif de conditionnement d'environnement et support de stockage WO2024017050A1 (fr)

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CN202210847981.8A CN115264617A (zh) 2022-07-19 2022-07-19 环境调节设备的控制方法、环境调节设备以及存储介质
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CN115264617A (zh) * 2022-07-19 2022-11-01 广东美的制冷设备有限公司 环境调节设备的控制方法、环境调节设备以及存储介质

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CN105805845A (zh) * 2014-12-31 2016-07-27 广东美的制冷设备有限公司 窗式房间空调器及窗式房间空调器的控制方法
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