KR20200124120A - μ-HVAC(Heat, Ventilating, and Air Conditioning) system - Google Patents

Abstract

The present invention relates to a μ-HVAC (heating, ventilating, and air conditioning) system, which can control a quality of air as well as cool and heat a small space in a house, an apartment, and an efficiency apartment by using an HVAC system generally adjusting a quality and an amount of the air so as to satisfy temperature, humidity, currents and cleanliness in industrial facilities or large-sized buildings. The μ-HVAC system comprises: a cooling and heating cycle in which a closed loop is made of a compressor, an exhaust side heat exchanger, an expansion valve, and an air supply side heat exchanger; and a total heat exchanger for total heat exchange between indoor air and outdoor air, wherein the total heat exchanger is positioned in a rotatable double housing having a sealing part and a through-hole part. Also, the μ-HVAC system comprises an air supply chamber, a ventilation chamber, an exhaust chamber, and an outdoor air chamber by a partition wall. In addition, the μ-HVAC system comprises an air blower for exhaustion for discharging the indoor air to the outside and an air blower for air supply for supplying the outdoor air to the inside. Thus, the μ-HVAC system configures the cooling and heating cycle by controlling a flow of the air by a combination of the sealing part and the through-hole part of the double housing and positioning the air supply side heat exchanger and the exhaustion side heat exchanger on an air path.

Description

μ-Air conditioning system {μ-HVAC (Heat, Ventilating, and Air Conditioning) system}

The present invention provides a large air conditioning system that adjusts the quality and quantity of air to satisfy temperature, humidity, airflow, and cleanliness, and controls the air quality in a small space such as a one-room, apartment, officetel, or outdoor camping tent. And it relates to a μ-air conditioning system having a heat recovery ventilation function and a cooling/heating function through heat exchange between outdoor air and indoor air.

In general, an air conditioning system for cooling and heating is installed in industrial facilities or large buildings. In addition, a lot of heat recovery total heat exchangers are installed to prevent energy waste when ventilating indoor and outdoor air of the air conditioning system.

However, there are not many heat recovery air conditioning systems applicable to small spaces such as studios, apartments, and officetels, and air purifiers are installed to remove ultrafine dust from threats to health due to ultrafine dust caused by industrialization. In some cases, the heat recovery type total heat exchanger may be installed separately, but it is difficult for the general public to easily change or clean the filter, so it is a situation that threatens health because mold occurs inside the total heat exchanger and intake duct due to condensation.

In addition, although the air purifier has fine dust or deodorizing function, it cannot remove volatile organic compounds such as radon, carbon dioxide, carbon monoxide, asbestos, ozone, and mites generated indoors.

The deodorizing function is also limited by the deodorizing filter, so it is practically limited only to the function of removing bacteria or fine dust.

Known technologies include Korean Patent 10-2016-0031658 (Bypass type heat recovery ventilator for easy maintenance and control method thereof) and Korean Patent 10-2018-0043223 (Waste heat recovery ventilator for condensation prevention), etc. ,Can be applied to small spaces,

In a small space, it cannot provide an air conditioning system with the size of a general air purifier.

Moreover, when camping outside, accidents of suffocating death due to increased carbon dioxide increase while burning a fire for heating in a small space called a tent, but there is no air conditioning system applicable to such a small space such as an outdoor tent.

Although it can be installed in a relatively small space like an air purifier, it must provide not only ultra-fine dust and deodorizing functions, but also cooling and heating and heat recovery ventilation functions.

In addition, in order to increase the energy consumption efficiency of the indoor air conditioning system, energy storage and power supply according to the power load are controlled through an energy storage device equipped with a battery and a battery management system (BMS). It should be able to operate the system by being supplied with power.

In order to solve the above problem, the present invention eliminates the need for air supply and ventilation ducts, and enables a user to easily install a system by utilizing an assembly duct or panel.

The most important thing is not to use a damper to control air flow for supply and ventilation, intake, and exhaust, but install the outer housing and the inner housing to be airtight, and seal the outer housing and the inner housing with airtight holes. The system structure is simplified by arranging parts and controlling the air conditioning mode by rotating the inner housing.

In addition, one air quality measurement sensor module is controlled through the same driving unit as the housing to periodically measure the quality of internal and external air, and control the system operation mode from the measured air quality data, and control the user's portable terminal. It receives the location information of the installed location through the network and combines it with the air quality measurement data, transmits it to the server through the network, stores it, and combines it with the map information so that users can share real-time indoor and outdoor air quality information.

By exchanging contaminated indoor air with outdoor air through a total heat exchanger and recovering heat, energy can be saved even during the heating/cooling cycle operation, and deodorization removal and harmful gases (carbon dioxide, radon) that cannot be effectively performed with a general air purifier The indoor temperature can be adjusted by removing excess moisture, releasing hot air from the room, and supplying relatively cool outside air to the room. Such operation mode control can be effectively controlled without multiple dampers with only one driving unit (step motor).

In addition, energy efficiency can be optimized by automatically switching to various air conditioning modes according to the measured air quality data.

The μ-air conditioning system of the present invention not only removes fine dust such as air purifiers in small spaces such as studios or officetels, but also removes carcinogens such as radon, asbestos, and ozone, and effectively removes deodorization and excessive moisture, and heat during cooling and heating. Outdoor air without loss

And contaminated air can be ventilated to save energy, and energy efficiency can be maximized by automatically switching to various air conditioning modes according to the measured air quality data.

In addition, an energy storage device with a built-in battery and battery management function (BMS) is built-in, and energy efficiency can be maximized through energy storage and supply according to the power load, as well as power from the built-in battery outdoors. And the μ-air conditioning system

It can be utilized, and the battery inside the energy storage device can be charged with renewable energy such as solar or wind power.

Fig. 1. Schematic diagram and configuration diagram of the μ-air conditioning system of the present invention
Fig. 2. An exemplary diagram of the configuration of the rotary plate and the double housing with the air quality measurement sensor module of the μ-air conditioning system of the present invention
Fig. 3. Detailed drawing of the air conditioning mode and sensor position driving control unit of the μ-air conditioning system of the present invention
Fig. 4. The overall circuit diagram of the μ-air conditioning system of the present invention
Fig. 5. Air flow diagram and system diagram of the cooling air cleaning mode of the μ-air conditioning system of the present invention
Fig. 6. Air flow diagram and system diagram of the air conditioning ventilation clean mode of the μ-air conditioning system of the present invention
Fig. 7. Air flow diagram and system diagram of the heating air cleaning mode of the μ-air conditioning system of the present invention
Fig. 8. Air flow diagram and system diagram of the heating ventilation clean mode of the μ-air conditioning system of the present invention
Fig. 9. General ventilation clean mode air flow diagram and system diagram of the μ-air conditioning system of the present invention
Fig. 10. General air cleaning mode air flow diagram and system diagram of the μ-air conditioning system of the present invention
Fig. 11. Example of installation using the simple duct of the μ-air conditioning system of the present invention

1 is a schematic diagram and configuration diagram of a μ-air conditioning system of the present invention.

The μ-air conditioning system 100 of the present invention comprises a cooling and heating cycle constituting a closed loop with a compressor 181, an exhaust side heat exchanger 185, an expansion valve 183, and a supply side heat exchanger 184, and indoor air ( A total heat exchanger 101 for total heat exchange between RA) and outdoor air (OA), a total heat exchanger 101 in the rotatable double housing 130,140 in which the sealing parts 131, 142 and the through holes 132,141 are formed. An exhaust blower to configure the air supply chamber 102, the ventilation chamber 103, the exhaust chamber 104, and the outside air chamber 105 by the partition wall 106, and to discharge indoor air (RA) to the outside Equipped with an air supply blower (186) for supplying (187) and outdoor air (OA) to the room,

By rotating the double housings (130, 140), the air flow is controlled by the combination of the sealing portions (131, 142) and the through holes (132, 141) of the double housings (130, 140), and The supply side heat exchanger (186) and the exhaust side heat exchanger (185) are positioned to form a cooling/heating cycle.

I can.

The double housings 130 and 140 have an outer housing 130 formed of an inner housing 140 and are airtightly installed to each other, and a sealing portion 131 formed in each of the housings 130 and 140 while rotating by an external rotational power By the combination of 142) and the through holes 132, 141, the air flow is controlled in such a way that the air passages to the respective chambers 102, 103, 104, and 105 are opened or blocked.

A bypass duct 188 is installed outside the exhaust chamber 104 and the outside air chamber 105, so that the outside air (OA) flowing into the bypass duct 188 through the outdoor air connector 110 according to the air conditioning mode Through the outside air chamber 105, the filter 120, the total heat exchanger 101, the air supply to the room through the air supply chamber 102, or through the exhaust chamber 104, a duct directly connected to the outdoor exhaust connector 111 It is discharged outdoors through.

The energy storage device 108 installed at the lower part of the μ-air conditioning system 100 not only doubles the energy efficiency maximization through energy storage and supply according to the power load, but also receives power from the built-in battery outdoors. The μ-air conditioning system 100 can be used, and the battery inside the energy storage device 108 can be charged with renewable energy such as solar or wind power.

Section A of FIG. 1 is a cross-sectional view of the μ-air conditioning system 100 from a cross-section A, and a cross-sectional view B is a cross-sectional view of a cross-section B. Section C and section D are cross-sectional views viewed from the upper and lower ends of the chamber. The air supply chamber 102 has an air supply window 113, so that the air introduced into the air supply chamber 102 by the air supply blower 186 passes through the air supply window 113. Through the air supply side heat exchanger 184, air is supplied to the room (SA), and an exhaust window 114 is formed in the exhaust chamber 104, and is introduced through the outdoor air connector 110 by the exhaust blower 187 A duct connected to the outdoor exhaust connector 111 through the exhausted air or indoor air (RA) introduced into the exhaust chamber 104 through the total heat exchanger 101, through the exhaust window 114, through the exhaust side heat exchanger 185 Through the

It is exhausted (EA) outdoors.

2 is a diagram illustrating the configuration of a rotating plate and a dual housing with an air quality measurement sensor module of the μ-air conditioning system of the present invention.

The rotating plate 204 to which the air quality measurement sensor module 107 is attached and the housing 140 are selectively controlled by the air conditioning mode/sensor position driving control unit 300.

The air conditioning mode/sensor position driving control unit 300 for rotation control of the rotating plate 204 and the housing 140 may be installed at an upper end or a lower end of the chambers 102, 103, 104 and 105.

A chamber cover 201 is installed at the upper and lower ends of the chamber, and a chamber cover groove 202 and a sensor hole 203 are formed in one of the upper and lower chamber covers 201.

2(a) is a cross-sectional view of the upper end of the chamber in which the air supply window 113 is formed, and FIG. 2(c) is a view of the chamber cover 201 in which the chamber cover groove 202 and the sensor hole 203 are formed.

Fig. 2(b) is a cross-sectional view seen from the E cross section of Fig. 2(a). The outer housing 130 and the inner housing 140 are airtightly installed, and a rotating plate 204 is installed on the air conditioning mode/sensor position driving control unit 300 and the inner housing 140 and the chamber cover 201.

Fig. 2(d) is an enlarged cross-section seen from the F cross-section of Fig. 2(e).

The air quality measurement sensor module 107 attached to the rotating plate 204 may be moved to the sensor hole 203 of each chamber by rotation control of the rotating plate 204.

3 is a detailed diagram of an air conditioning mode and a sensor position driving control unit of the μ-air conditioning system of the present invention.

The air conditioning mode/sensor position driving control unit 300 of the μ-air conditioning system 100 of the present invention is connected to the driving unit 301 and the driving shaft 301 having a driving shaft 302 for generating and transmitting rotational force, A pair of drive gears (303, 304) that transmits driving force in the direction of rotation and

The air conditioning mode and the position of the air quality measurement sensor module 107 can be driven and controlled by a method of rotating the housing 140 and the rotating plate 204 held in the single driving gears 303 and 304.

The pair of driving gears 303 and 304 form a gear spring groove 306 in different directions between the rotational circumferential surface 307 at the center of the driving gear, and the gear spring 305 is formed in the housing ( 140) and the gears 311 and 312 formed on the rotating plate 204, or

It is possible to selectively rotate the housing 140 and the rotating plate 204 by a method of entering into the rotational circumferential surface 307.

4 is an overall circuit diagram of the μ-air conditioning system of the present invention.

The overall circuit diagram 400 of the μ-air conditioning system of the present invention includes a control calculation processing unit 401 that is a main control unit, and this control calculation processing unit 401 drives the air supply blower 186 and the exhaust blower 187, A control signal generator 405 that generates a control signal from the blow drive unit 406 to control, the pulse width modulator 403 and the pulse frequency modulator 404 and transmits it to the blower drive unit 406, and an air quality measurement sensor module (107) and the air conditioning mode/sensor position driving control unit 300 for measuring the quality of outdoor air and indoor air at the same time and controlling the air conditioning mode of the system, the cooling and heating control unit 402 for controlling cooling and heating operation, user interface (409), etc. are controlled and processed.

The system power 408 can be supplied directly from the external AC power 440, but receives and stores power from the DC power 444 and the AC power 440, or supplies its own power, as well as an external DC load 443 ) And the AC load 442 can be supplied with power.

To this end, a battery 421 and a battery management system BMS 420 are provided, and a two-way DC-DC converter 422 and a two-way DC-DC converter 422 to receive and store power from an external AC power source 440 or DC power source 444 are provided. An energy storage unit 108 including an AC-DC inverter may be provided.

The energy storage unit 108 receives energy billing policy information through an external network or a portable terminal 430, stores power at the time when the power charge is the lowest, and uses the power stored at the time when the power is used the most. Power supply 408 and

Power may be supplied to the external DC load 443 and the AC load 442.

5 is an air flow diagram and a system diagram of a cooling air cleaning mode of the μ-air conditioning system of the present invention.

The condition for the μ-air conditioning system 100 of the present invention to operate in the cooling air cleaning mode is, when the indoor temperature is less than or equal to the cooling set temperature, it is switched to the cooling mode, and the air quality measurement sensor module 107 According to the data, indoor air contains pollutants such as radon, CO2, CO, and volatile organic compounds below the standard value.

In this case, the cooling and heating cycle is composed of a compression cycle through the compressor 181, condensation through the exhaust side heat exchanger 185, expansion by the expansion valve 183, and an evaporation cycle through the supply air side heat exchanger 184. .

In the cooling air cleaning mode, indoor air (RA) is directly introduced into the air supply blower 186 to the outside air chamber 105, and the air supply window 113 of the supply air chamber 102 passes through the filter 120 and the total heat exchanger 101. Through indoor air supply (SA). And the outdoor air (OA) by the exhaust blower 187 passes through the exhaust chamber 104 directly to the outdoor air connector 110 of the bypass duct 188 through the exhaust window 114 through the exhaust side heat exchange. After absorbing the heat of condensation in the unit 185, it is discharged to the outside.

In this case, in order to measure the air quality of outdoor air and indoor air, the air quality measurement sensor module 107 periodically moves and measures the outdoor air chamber 105 and the exhaust chamber 104.

6 is an air flow diagram and a system diagram in a cooling ventilation clean mode of the μ-air conditioning system of the present invention.

In the cooling ventilation clean mode of the μ-air conditioning system 100 of the present invention, the cooling cycle is the same as that of FIG. 5.

In the cooling ventilation clean mode, the outdoor air (OA) passes through the outdoor air connection port 110 of the bypass duct 188 through the outdoor air chamber 105, the filter 120, and the total heat exchanger 101 to pass the air supply chamber 102. Through the indoor air supply (SA), the indoor air (RA) is introduced into the ventilation chamber 103, the exhaust side heat exchanger 185 through the exhaust chamber 104 through the pre-filter 121 and the total heat exchanger 101 After absorbing the heat of condensation, it is discharged to the outside through the outdoor exhaust connector 111.

In the cooling ventilation clean mode of the present invention, after total heat exchange between the indoor air (RA) and the outdoor air (OA) is performed through the total heat exchanger 101, the exhaust is exhausted through the exhaust side heat exchanger 185, so that the total heat exchange exhaust Due to heat exchange with the exhaust side heat exchanger (185) again in the air

Cooling efficiency can be improved.

In the cooling ventilation clean mode, the air quality measurement sensor module 107 can measure the air quality of the indoor air (RA) and the outdoor air (OA) while periodically moving the ventilation chamber 103 and the outside air chamber 105.

7 is an air flow diagram and a system diagram of a heating air cleaning mode of the μ-air conditioning system of the present invention.

In the μ-air conditioning system 100 of the present invention, first, the heating cycle includes compression of the compressor 181, condensation of the air supply side heat exchanger 184, expansion of the expansion valve 183, and evaporation at the exhaust side heat exchanger 185. It consists of cycles. Except for the heating cycle, the air flow is the same as in FIG. 5.

8 is a diagram and a system diagram of the air flow diagram in the heating ventilation clean mode of the μ-air conditioning system of the present invention.

The heating cycle is the same as the heating cycle of FIG. 7, and the air flow control is the same as that of FIG. 5.

9 is a general ventilation clean mode air flow diagram and system diagram of the μ-air conditioning system of the present invention.

In the case of the season when the outside temperature and the inside temperature are not large, the heating and cooling cycle is not operated, and the general ventilation cleaning mode or the general air cleaning mode is operated.

Of course, even in the air conditioning mode in which the cooling/heating cycle is operated, the cooling/heating cycle is turned off when the indoor temperature is controlled within the set temperature range, and the air quality measurement sensor module 107 operates in the general ventilation cleaning mode or the general air cleaning mode according to the air quality data. Will do.

The μ-air conditioning system 100 of the present invention is an air flow diagram and a system diagram when operating in a general ventilation clean mode.

The outdoor air (OA) is introduced into the outdoor air chamber 105 through the outdoor air connector 110, passes through the filter 120 and the total heat exchanger 101, and is supplied with indoor air supply (SA) through the air supply chamber 102.

In addition, the indoor air (RA) is directly introduced into the exhaust chamber 104, and the outdoor exhaust (EA) through the exhaust window 114 and the outdoor exhaust connector 111.

10 is a general air cleaning mode air flow diagram and system diagram of the μ-air conditioning system of the present invention.

The general air cleaning mode of the μ-air conditioning system 100 of the present invention operates like a general air purifier.

The exhaust blower 187 is turned off, and the indoor air (RA) is directly introduced into the outdoor air chamber 105, and the indoor air supply (SA) is performed through the air supply chamber 102 through the filter 120 and the total heat exchanger 101. .

11 is a diagram illustrating an installation example using a simple duct of the μ-air conditioning system of the present invention.

It can be simply installed with the box assembly duct 602 without the need for duct work.

Figure 11 (a) is, when there is an indoor buffer space between the outdoor and indoors, such as a veranda, the prefabricated panel 601 is inserted into the outdoor window frame and the indoor window frame, and the outdoor air connector 110 of the μ-air conditioning system 100 And the outdoor exhaust connector 111 are connected to the outdoor exhaust port 604 and the intake port 603 by an assembly duct 602.

In consideration of the case of connecting the indoor air supply and the indoor ventilation of the μ-air conditioning system 100 with the assembly duct 602, the indoor ventilation and indoor air supply must also be considered when designing.

11 (b) is an exemplary diagram in which the panel 601 is inserted directly into the window frame and the μ-air conditioning system 100 is installed through the assembly duct 602 when there is no indoor buffer space.

100: μ-air conditioning system
101: total heat exchanger
102: air supply chamber
103: ventilation chamber
104: exhaust chamber
105: regression chamber
106: bulkhead
107: air quality measurement sensor module
110: outdoor air connector
111: outdoor exhaust connector
113: air supply window
114: exhaust window
120: filter
121: pre-filter
130: external housing
131: outer housing sealing part
132: external housing through hole
140: inner housing
141: inner housing through hole
142: inner housing sealing part
180: schematic
181: compressor
182: four-way valve
183: expansion valve
184: air supply side heat exchanger
185: exhaust side heat exchanger
186: air supply blower
187: exhaust blower
201: chamber cover
202: chamber cover groove
203: chamber cover sensor hole
204: rotating plate

Claims (9)

In constructing the μ-air conditioning system,
A cooling/heating cycle comprising a closed loop with a compressor, an exhaust heat exchanger, an expansion valve, and an air supply heat exchanger,
Total heat exchanger for total heat exchange between indoor air and outdoor air,
A total heat exchanger is placed inside a rotatable double housing with a sealing part and a through hole formed therein, and an air supply chamber, a ventilation chamber, an exhaust chamber, and an outside air chamber are formed by a partition wall.
Equipped with an exhaust blower for discharging indoor air to the outside and an air supply blower for supplying outdoor air to the room,

Μ-air conditioning system, characterized in that the air flow is controlled by a combination of the sealing part and the through hole part of the double housing, and the air supply side heat exchanger and the exhaust side heat exchanger are positioned on the air passage to constitute a cooling and heating cycle.
The method of claim 1,
With a bypass duct connecting the outside air chamber and the exhaust chamber, whether to supply the outdoor air flowing into the bypass duct through the total heat exchanger through the air passage control by rotating the double housing to the indoor or to the outside through the exhaust chamber. Μ-air conditioning system, characterized in that the decision.
The method of claim 1,
The air quality measurement sensor module is further provided,
A μ-air conditioning system, characterized in that it is installed in the inner housing of a double housing, and the position is moved according to the rotation of the inner housing, so that the air quality of both indoor and outdoor air can be measured with one air quality measurement sensor module.
The method of claim 1,
The air quality measurement sensor module is further provided,
A sensor hole is formed in the chamber cover at the top or bottom of the chamber, and the rotating plate with the air quality measuring sensor module attached is airtightly installed on the chamber cover, and the air quality measuring sensor module is moved to the sensor hole according to the rotating plate rotation control. A μ-air conditioning system characterized by allowing the air quality of outdoor air to be measured with one air quality measurement sensor module.
The method according to claim 1 to 4,
A drive unit having a drive shaft for generating and transmitting rotational force,
A pair of drive gears that are connected to the drive shaft to transmit driving force in different directions of rotation,
Μ-air conditioning system, characterized in that the air conditioning mode and the position of the air quality measurement sensor module are driven and controlled by a method of selectively rotating control of the housing and the rotating plate engaged by the pair of driving gears.
The method of claim 5,
The pair of driving gears form a gear spring groove in different directions between the rotational circumferential surface at the center of the driving gear, and the gear spring is bitten by a gear formed on the housing and the rotating plate or enters into the rotational circumferential surface according to the rotational direction. Μ-air conditioning system, characterized in that the rotation of the housing and the rotating plate are selectively controlled by a method.
The method of claim 1,
A μ-air conditioning system, characterized in that it further includes an energy storage unit that stores power supplied from external DC power and AC power, and supplies system power even when power is not supplied.
The method of claim 7,
The energy storage unit receives energy billing policy information through an external network or a mobile terminal, stores power at a time when the power charge is the lowest, and operates with power stored at a time when the power is used the most. system.
The method according to claim 1 to 4,
Further comprising a non-contact short-range communication unit,
Μ-air conditioning system, characterized in that it receives location information from a portable terminal with a built-in location sensor through the non-contact short-range communication unit, transmits it to a real-time server along with air quality measurement sensor data, combines it with map information, and provides it to a user.

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