CN111207450A - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
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- CN111207450A CN111207450A CN202010034517.8A CN202010034517A CN111207450A CN 111207450 A CN111207450 A CN 111207450A CN 202010034517 A CN202010034517 A CN 202010034517A CN 111207450 A CN111207450 A CN 111207450A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 69
- 230000008020 evaporation Effects 0.000 claims abstract description 57
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- 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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- 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
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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to an air conditioning system and a control method thereof, the system including: the indoor evaporator comprises an upper section evaporator and a lower section evaporator; a plurality of temperature detection means for detecting an evaporation temperature of the indoor evaporator; and the control device is used for controlling the refrigerant flow of the air conditioning system according to the evaporation temperature. According to the technical scheme provided by the invention, the plurality of temperature detection devices are arranged on the indoor evaporator, so that the evaporation temperature of each part of the evaporator can be effectively detected when the air-conditioning system is operated at low temperature for refrigeration, and the evaporator can not be locally frosted after the refrigerant flow of the air-conditioning system is controlled according to the evaporation temperature, the refrigeration capacity of the air conditioner is ensured, and the timeliness and the reliability of the control of the air-conditioning system are also ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning system and a control method thereof.
Background
The single centrifugal fan is often used in a cabinet air conditioner, the air inlet airflow close to the position of the blade is large in the air inlet direction, the air inlet airflow far away from the position of the air inlet is obviously slowed down, the air inlet flow velocity is different at each position, when the heat exchanger of the air conditioner performs heat exchange, the heat exchange efficiency of the heat exchanger is influenced, the heat exchange at each position of the heat exchanger is uneven, when the air conditioner is refrigerated under the low-temperature environment, the heat exchanger is locally frosted, the refrigerating capacity of the air conditioner is reduced, the air conditioner is damaged due to icing in serious conditions, and the problem is caused in the reliability operation. Especially when the air is independently discharged, the air inlet speed at the bottom of the heat exchanger is reduced and the air volume is reduced due to the change of the air inlet flow, the evaporation state of a refrigerant in the heat exchanger is changed, the frosting area of the heat exchanger is changed, and the reliable operation of the air conditioner cannot be ensured.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an air conditioning system and a control method thereof, so as to solve the problem that the air conditioner cannot operate reliably due to local frosting of an indoor evaporator during low temperature refrigeration in the prior art.
According to a first aspect of embodiments of the present invention, there is provided an air conditioning system including:
the indoor evaporator comprises an upper section evaporator and a lower section evaporator;
a plurality of temperature detection means for detecting an evaporation temperature of the indoor evaporator;
and the control device is used for controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
Preferably, the system further comprises:
and the centrifugal fan is arranged right in front of the indoor evaporator and right opposite to the middle position of the indoor evaporator.
Preferably, the number of the temperature detection devices is two, and the two temperature detection devices are respectively arranged at the inlet sections of the upper section evaporator and the lower section evaporator and are used for respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
Preferably, the temperature detection device is a tube temperature sensing bulb.
Preferably, the system further comprises:
an outdoor condenser, a throttling device and a flow divider;
the inlet end of the flow divider is connected with the outdoor condenser through the throttling device; the first outlet end of the evaporator is connected with the lower section evaporator, and the second outlet end of the evaporator is connected with the upper section evaporator.
According to a second aspect of the embodiments of the present invention, there is provided a control method of an air conditioning system, including:
detecting the evaporation temperature of the indoor evaporator by a plurality of temperature detection devices;
and controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
Preferably, if the indoor evaporator includes an upper section evaporator and a lower section evaporator, the detecting the evaporation temperature of the indoor evaporator specifically includes:
and respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
Preferably, the controlling the refrigerant flow rate of the air conditioning system according to the evaporation temperature includes:
when the air-conditioning system is in an upper and lower air outlet working mode, controlling the refrigerant flow of the air-conditioning system according to the evaporation temperature of the upper section evaporator; and/or the presence of a gas in the gas,
and when the air conditioning system is in an upper air outlet working mode, controlling the refrigerant flow of the air conditioning system according to the evaporation temperature of the lower section evaporator.
Preferably, the controlling the refrigerant flow rate of the air conditioning system according to the evaporation temperature includes:
when the air conditioning system is in a low-temperature refrigeration working mode, comparing the evaporating temperature of the upper section evaporator with the evaporating temperature of the lower section evaporator;
and controlling the refrigerant flow of the air conditioning system according to the minimum value of the evaporation temperature.
According to a third aspect of embodiments of the present invention, there is provided an air conditioning system including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the evaporation temperature of the indoor evaporator by a plurality of temperature detection devices;
and controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the plurality of temperature detection devices are arranged on the indoor evaporator, so that when the air-conditioning system is operated in low-temperature refrigeration, the evaporation temperature of each part of the evaporator can be effectively detected, the evaporator can not be locally frosted after the refrigerant flow of the air-conditioning system is controlled according to the evaporation temperature, the refrigeration capacity of the air conditioner is ensured, and the timeliness and the reliability of the control of the air-conditioning system are also ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of an air conditioning system shown in accordance with an exemplary embodiment;
FIG. 2 is a right side view of the centrifugal fan and the indoor evaporator shown in accordance with an exemplary embodiment;
FIG. 3 is a front view of a centrifugal fan and an indoor evaporator shown in accordance with an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of controlling an air conditioning system according to an exemplary embodiment;
1-compressor, 2-four-way valve, 3-outdoor condenser, 4-outdoor fan, 5-throttling device, 6-flow divider, 7-indoor evaporator, 8-centrifugal fan, 9-second tube temperature sensing bulb and 10-first tube temperature sensing bulb.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a schematic diagram illustrating an air conditioning system according to an exemplary embodiment, the system including, as shown in fig. 1:
an indoor evaporator 7 including an upper section evaporator and a lower section evaporator;
a plurality of temperature detection means for detecting an evaporation temperature of the indoor evaporator 7;
and a control device (not shown in the drawing) for controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
It should be noted that the control device includes, but is not limited to: microprocessor, singlechip, PLC controller, DSP controller, FPGA controller etc..
Preferably, the temperature detection device is a tube temperature sensing bulb.
Preferably, the temperature detection devices are two, and include: and the first tube temperature sensing bulb 10 and the second tube temperature sensing bulb 9 are respectively arranged at the inlet sections of the upper section evaporator and the lower section evaporator and are used for respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
It can be understood that, the technical scheme that this embodiment provided through set up a plurality of temperature-detecting device on indoor evaporator for when air conditioning system low temperature refrigeration operation, can effectively detect the evaporating temperature at each position of evaporator, thereby make according to behind evaporating temperature control air conditioning system's the refrigerant flow, the evaporator can not locally frost, has guaranteed the refrigeration capacity of air conditioner, has also guaranteed timeliness, the reliability of air conditioning system control simultaneously.
Referring to fig. 2 and 3, preferably, the system further comprises:
and the centrifugal fan 8 is arranged right in front of the indoor evaporator 7 and right opposite to the middle position of the indoor evaporator 7.
It can be understood that the centrifugal fan is right opposite to the middle position of the indoor evaporator, the maximum air inlet amount can be ensured when the air conditioner system is used for air outlet from top to bottom and air outlet from top to bottom, and the heat exchange performance of the indoor evaporator can be effectively improved.
Preferably, the system further comprises:
an outdoor condenser 3, a throttling device 5 and a flow divider 6;
the inlet end of the flow divider 6 is connected with the outdoor condenser 3 through the throttling device 5; the first outlet end of the evaporator is connected with the lower section evaporator, and the second outlet end of the evaporator is connected with the upper section evaporator.
It can be understood that, after heat exchange by the outdoor condenser, the high-temperature refrigerant is throttled by the throttling device and then changed into a low-temperature low-pressure liquid refrigerant, and the low-temperature low-pressure liquid refrigerant is shunted by the shunt and then enters the indoor heat exchanger, wherein a part of the refrigerant enters the lower section evaporator for heat exchange, and the section of flow path is positioned at the lower end of the centrifugal fan and used for bottom evaporation heat exchange; and the other part of the refrigerant enters the upper section evaporator for heat exchange.
Fig. 4 is a flowchart illustrating a control method of an air conditioning system according to an exemplary embodiment, as shown in fig. 4, the method including:
step S11, detecting the evaporation temperature of the indoor evaporator through a plurality of temperature detection devices;
and step S12, controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
It can be understood that, the technical scheme that this embodiment provided through set up a plurality of temperature-detecting device on indoor evaporator for when air conditioning system low temperature refrigeration operation, can effectively detect the evaporating temperature at each position of evaporator, thereby make according to behind evaporating temperature control air conditioning system's the refrigerant flow, the evaporator can not locally frost, has guaranteed the refrigeration capacity of air conditioner, has also guaranteed timeliness, the reliability of air conditioning system control simultaneously.
Preferably, if the indoor evaporator includes an upper section evaporator and a lower section evaporator, the detecting the evaporation temperature of the indoor evaporator specifically includes:
and respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
Preferably, the temperature detection device is a tube temperature sensing bulb.
Preferably, the temperature detection devices are two, and include: the first tube temperature sensing bag and the second tube temperature sensing bag are respectively arranged at the inlet sections of the upper section evaporator and the lower section evaporator and are used for respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
Preferably, the controlling the refrigerant flow rate of the air conditioning system according to the evaporation temperature includes:
when the air-conditioning system is in an upper and lower air outlet working mode, controlling the refrigerant flow of the air-conditioning system according to the evaporation temperature of the upper section evaporator; and/or the presence of a gas in the gas,
and when the air conditioning system is in an upper air outlet working mode, controlling the refrigerant flow of the air conditioning system according to the evaporation temperature of the lower section evaporator.
It can be understood that, when the air conditioning system is in the upper and lower air outlet working mode, the temperature change detected by the first pipe temperature sensing bulb is used for controlling the operation of the air conditioning system. When the air conditioning system is in an upper air outlet working mode, the air conditioning system is controlled to operate according to the temperature change detected by the second tube temperature sensing bulb. When the working mode of upper and lower air outlet is adopted, the air inlet amount of upper and lower regions of air inlet is the same, the evaporation state of the refrigerant in the evaporator is the same, when the working mode of upper air outlet is switched, the air inlet speed of lower segment air inlet can be obviously reduced, the bottom heat exchange is poor, the temperature of the refrigerant is lowered, the temperature detected by the second tube temperature sensing bulb is lower than the temperature detected by the first tube temperature sensing bulb, the refrigerant flow of the air conditioning system is controlled according to the temperature detected by the second tube temperature sensing bulb, the control is more accurate, the evaporator can be effectively prevented from being frosted locally, and the refrigerating capacity of the air conditioning system is ensured.
Preferably, the controlling the refrigerant flow rate of the air conditioning system according to the evaporation temperature includes:
when the air conditioning system is in a low-temperature refrigeration working mode, comparing the evaporating temperature of the upper section evaporator with the evaporating temperature of the lower section evaporator;
and controlling the refrigerant flow of the air conditioning system according to the minimum value of the evaporation temperature.
It can be understood that the refrigerant flow of the air conditioning system is controlled according to the minimum value of the evaporation temperature by comparing the evaporation temperature of the upper section evaporator with the evaporation temperature of the lower section evaporator, so that the frosting of the air conditioning system can be reduced, and if the temperature detected by the tube temperature sensing bulb is continuously reduced to 1 ℃, the air conditioning system is stopped in time, and the reliable operation of the air conditioner is ensured.
In specific practice, when the air conditioning system is in a low-temperature refrigeration working mode and the air outlet mode is detected to be vertical air outlet, the temperature detected by the first pipe temperature sensing bulb is lower than 4 ℃, and the second pipe temperature sensing bulb is started to perform synchronous detection. And when the air outlet mode is the upward air outlet mode, the temperature detected by the second tube temperature sensing bulb is lower than 4 ℃, and the first tube temperature sensing bulb is started for synchronous detection. The evaporation temperature detected by the first tube temperature sensing bag and the second tube temperature sensing bag is compared, and the refrigerant flow of the air conditioning system is controlled according to the minimum value of the evaporation temperature, so that the air conditioning system can stably and reliably operate.
An air conditioning system according to an exemplary embodiment of the present invention is shown, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the evaporation temperature of the indoor evaporator by a plurality of temperature detection devices;
and controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
It can be understood that, the technical scheme that this embodiment provided through set up a plurality of temperature-detecting device on indoor evaporator for when air conditioning system low temperature refrigeration operation, can effectively detect the evaporating temperature at each position of evaporator, thereby make according to behind evaporating temperature control air conditioning system's the refrigerant flow, the evaporator can not locally frost, has guaranteed the refrigeration capacity of air conditioner, has also guaranteed timeliness, the reliability of air conditioning system control simultaneously.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An air conditioning system, comprising:
the indoor evaporator comprises an upper section evaporator and a lower section evaporator;
a plurality of temperature detection means for detecting an evaporation temperature of the indoor evaporator;
and the control device is used for controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
2. The system of claim 1, further comprising:
and the centrifugal fan is arranged right in front of the indoor evaporator and right opposite to the middle position of the indoor evaporator.
3. The system of claim 1,
the two temperature detection devices are respectively arranged at the inlet sections of the upper section evaporator and the lower section evaporator and are used for respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
4. The system according to any one of claims 1 to 3,
the temperature detection device is a tube temperature sensing bulb.
5. The system of claim 1, further comprising:
an outdoor condenser, a throttling device and a flow divider;
the inlet end of the flow divider is connected with the outdoor condenser through the throttling device; the first outlet end of the evaporator is connected with the lower section evaporator, and the second outlet end of the evaporator is connected with the upper section evaporator.
6. A control method of an air conditioning system, comprising:
detecting the evaporation temperature of the indoor evaporator by a plurality of temperature detection devices;
and controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
7. The method according to claim 6, wherein if the indoor evaporator comprises an upper section evaporator and a lower section evaporator, the detecting the evaporation temperature of the indoor evaporator comprises:
and respectively detecting the evaporation temperature of the inlet sections of the upper section evaporator and the lower section evaporator.
8. The method as claimed in claim 7, wherein the controlling a refrigerant flow rate of an air conditioning system according to the evaporation temperature comprises:
when the air-conditioning system is in an upper and lower air outlet working mode, controlling the refrigerant flow of the air-conditioning system according to the evaporation temperature of the upper section evaporator; and/or the presence of a gas in the gas,
and when the air conditioning system is in an upper air outlet working mode, controlling the refrigerant flow of the air conditioning system according to the evaporation temperature of the lower section evaporator.
9. The method as claimed in claim 7, wherein the controlling a refrigerant flow rate of an air conditioning system according to the evaporation temperature comprises:
when the air conditioning system is in a low-temperature refrigeration working mode, comparing the evaporating temperature of the upper section evaporator with the evaporating temperature of the lower section evaporator;
and controlling the refrigerant flow of the air conditioning system according to the minimum value of the evaporation temperature.
10. An air conditioning system, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting the evaporation temperature of the indoor evaporator by a plurality of temperature detection devices;
and controlling the refrigerant flow of the air conditioning system according to the evaporation temperature.
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| CN202010034517.8A CN111207450B (en) | 2020-01-14 | 2020-01-14 | Air conditioning system and control method thereof |
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| CN202010034517.8A CN111207450B (en) | 2020-01-14 | 2020-01-14 | Air conditioning system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739280A (en) * | 2021-09-23 | 2021-12-03 | 珠海格力电器股份有限公司 | Heat exchanger assembly and air conditioner |
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