CN203083217U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN203083217U CN203083217U CN201320064091.6U CN201320064091U CN203083217U CN 203083217 U CN203083217 U CN 203083217U CN 201320064091 U CN201320064091 U CN 201320064091U CN 203083217 U CN203083217 U CN 203083217U
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- air
- refrigerant
- heat exchanger
- compressor
- throttling arrangement
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- 239000003507 refrigerant Substances 0.000 claims abstract description 109
- 239000007789 gas Substances 0.000 claims description 19
- 238000001704 evaporation Methods 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 5
- 239000007792 gaseous phase Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract 7
- 239000007788 liquid Substances 0.000 description 8
- 238000002309 gasification Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air conditioner, including compressor, outdoor heat exchanger, indoor heat exchanger and the air supplement unit who is linked together with the tonifying qi mouth of compressor, indoor heat exchanger's first end is linked together with the compressor, and the air conditioner is still including setting up the throttling arrangement between air supplement unit and indoor heat exchanger to and set up the refrigerant heating device in order to improve air supplement unit tonifying qi volume between throttling arrangement and air supplement unit. The utility model discloses a set up refrigerant heating device between throttling arrangement and air supplement unit, heat the refrigerant that gets into air supplement unit to the quality of the refrigerant that the improvement got into air supplement unit. Compared with the existing air supply enthalpy increasing technology, the air supply quantity of the air supply device to the compressor can be obviously improved, the heating quantity of the air conditioner is effectively improved, the heating requirement at low temperature is met, and the exhaust temperature of the compressor is reduced.
Description
Technical field
The utility model relates to field of air conditioning, in particular to a kind of air-conditioner.
Background technology
The air source heat pump heating capacity descends decay rapidly with outdoor environment temperature and can't meet consumers' demand.Existing adopt twin-stage or the compression of accurate secondary in the middle of tonifying Qi increase the enthalpy technology, comprise in the middle of the two-stage throttling in the middle of not exclusively cooling and the one-level throttling not exclusively cool cycles, cross heating capacity and COP when hanging down to improve in outdoor temperature, reduce compressor exhaust temperature simultaneously.Though heating capacity when improving low temperature has certain effect but existing tonifying Qi increases the enthalpy technology, still can not reach the heating effect of employing in indoor installation auxiliary electro-heat device heating, cause still the auxiliary electro-heat device need be set in the indoor, reach heating effect, the auxiliary electro-heat device is set in the indoor has certain potential safety hazard.
The utility model content
The utility model aims to provide a kind of air-conditioner of heating capacity when improving low temperature.
The utility model provides a kind of air-conditioner, comprise compressor, outdoor heat exchanger, indoor heat exchanger and the making-up air device that is connected with the gas supplementing opening of compressor, first end of indoor heat exchanger is connected with compressor, air-conditioner also comprises the throttling arrangement that is arranged between making-up air device and the indoor heat exchanger, and is arranged between throttling arrangement and the making-up air device to improve the refrigerant heater of making-up air device air compensation.
Further, making-up air device is a flash evaporation; Flash evaporation comprises the first cold-producing medium mouth that is connected with second end of indoor heat exchanger and the gaseous phase outlet that is connected with the gas supplementing opening of compressor and the second cold-producing medium mouth that is connected with outdoor heat exchanger; The throttling arrangement series connection is arranged between second end of the first cold-producing medium mouth and indoor heat exchanger.
Further, the series connection of refrigerant heater is arranged between the throttling arrangement and the first cold-producing medium mouth.
Further, throttling arrangement is connected by first refrigerant line with the first cold-producing medium mouth; The refrigerant heater and first refrigerant line are arranged between the throttling arrangement and the first cold-producing medium mouth in parallel.
Further, making-up air device is an economizer, comprises first refrigerant chamber and second refrigerant chamber of mutual isolation and heat exchange; First refrigerant chamber is connected between indoor heat exchanger and the outdoor heat exchanger; Second refrigerant chamber is connected between the gas supplementing opening of indoor heat exchanger and compressor.
Further, the throttling arrangement series connection is arranged between the indoor heat exchanger and second refrigerant chamber; The series connection of refrigerant heater is arranged between the throttling arrangement and second refrigerant chamber.
Further, making-up air device is an economizer, comprises first refrigerant chamber and second refrigerant chamber of mutual isolation and heat exchange; First end of first refrigerant chamber is communicated with second end of indoor heat exchanger, and second end of first refrigerant chamber is communicated with first end of outdoor heat exchanger; First end of second refrigerant chamber is connected with second end of first refrigerant chamber by second refrigerant line, and second end of second refrigerant chamber is connected with the gas supplementing opening of compressor.
Further, the throttling arrangement series connection is arranged on second refrigerant line; The series connection of refrigerant heater is arranged between first end of the throttling arrangement and second refrigerant chamber.
According to air-conditioner of the present utility model,, the cold-producing medium that enters making-up air device is heated, thereby raising enters the mass dryness fraction of the cold-producing medium of making-up air device by the refrigerant heater is set between throttling arrangement and making-up air device.Compare existing tonifying Qi and increase the enthalpy technology, can significantly improve the air compensation to compressor of making-up air device, and then effectively improve the heating capacity of air-conditioner, heat requirement when satisfying low temperature, reduced the delivery temperature of compressor simultaneously.In addition, according to the flow direction of cold-producing medium, the refrigerant heater is arranged on the downstream of throttling arrangement, has prevented to cause because the refrigerant heater makes the liquid refrigerant partial gasification non-normal working of throttling arrangement.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the system schematic according to first embodiment of air-conditioner of the present utility model;
Fig. 2 is the system schematic according to second embodiment of air-conditioner of the present utility model;
Fig. 3 is the system schematic according to the 3rd embodiment of air-conditioner of the present utility model; And
Fig. 4 is the system schematic according to the 4th embodiment of air-conditioner of the present utility model.
The specific embodiment
Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Shown in Fig. 1 to 4, according to air-conditioner of the present utility model, comprise compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3 and the making-up air device 5 that is connected with the gas supplementing opening of compressor 1, first end of indoor heat exchanger 3 is connected with compressor 1, air-conditioner also comprises the throttling arrangement 401 that is arranged between making-up air device 5 and the indoor heat exchanger 3, and is arranged between throttling arrangement 401 and the making-up air device 5 to improve the refrigerant heater 9 of making-up air device 5 air compensations.The utility model is by being provided with refrigerant heater 9 between throttling arrangement 401 and making-up air device 5, to entering the cold-producing medium heating of making-up air device 5, thereby improve the mass dryness fraction of the cold-producing medium that enters making-up air device 5, improve air compensation and heating capacity, reduced the delivery temperature of compressor 1 simultaneously.In addition, according to the flow direction of cold-producing medium, refrigerant heater 9 is arranged on the downstream of throttling arrangement 401, has prevented to cause because the refrigerant heater makes the liquid refrigerant partial gasification non-normal working of throttling arrangement.
Particularly, as shown in Figure 1, according to first embodiment of the present utility model, the exhaust of compressor 1 is through indoor heat exchanger 3(condenser), throttling arrangement 401 throttlings enter 9 heat absorptions of refrigerant heater after being depressurized to intermediate pressure, the cold-producing medium mass dryness fraction is improved, enter making-up air device 5(flash evaporation then) middle gas-liquid separation, the gaseous refrigerant that separates enters the gas supplementing opening of compressor 1 to the compressor tonifying Qi by the gaseous phase outlet of flash evaporation, liquid refrigerant is through second throttling arrangement 402, outdoor heat exchanger 2(evaporimeter), gas-liquid separator 6 back air entries from compressor 1 enter compressor and mix with the gas that enters from gas supplementing opening through being compressed to intermediate pressure for the first time, mixed gas through being compressed to for the second time high pressure and finally discharging from exhaust outlet, forms the circulation that heats of air-conditioner again.By refrigerant heater 9 is set, thereby improve the mass dryness fraction of the cold-producing medium that enters flash evaporation effectively, improve the air compensation of flash evaporation, and then improve the heating capacity of air device, can also reduce the delivery temperature of compressor.
As shown in Figure 2, according to second embodiment of the present utility model, different with first embodiment is, in a second embodiment, throttling arrangement 401 and making-up air device 5(flash evaporation) between be connected by first refrigerant line, the refrigerant heater 9 and first refrigerant line are arranged between the first cold-producing medium mouth of throttling arrangement 401 and flash evaporation in parallel, and promptly refrigerant heater 9 is connected between throttling arrangement 401 and the flash evaporation by an other refrigerant line.Compare first embodiment, refrigerant heater 9 is arranged in parallel, and can reduce the flow of heated refrigerant, thereby the part cold-producing medium is gasified more fully, thereby more helps improving air compensation, improves heating capacity.
As shown in Figure 3, according to the 3rd embodiment of the present utility model, in this embodiment, making-up air device 5 is an economizer, comprises first refrigerant chamber and second refrigerant chamber of mutual isolation and heat exchange.Second refrigerant chamber is used for the evaporation gasification of the cold-producing medium after the throttling, thereby to the gas supplementing opening tonifying Qi of compressor 1, in the process of cold-producing medium evaporation gasification, absorbs heat from first refrigerant chamber, thereby make the refrigerant in first refrigerant chamber cold excessively in second refrigerant chamber.
Particularly, in the 3rd embodiment, first refrigerant chamber is connected between indoor heat exchanger 3 and the outdoor heat exchanger 2; Second refrigerant chamber is connected between the gas supplementing opening of indoor heat exchanger 3 and compressor 1; Throttling arrangement 401 series connection are arranged between the indoor heat exchanger 3 and second refrigerant chamber; 9 series connection of refrigerant heater are arranged between the throttling arrangement 401 and second refrigerant chamber.
The exhaust of compressor 1 is through indoor heat exchanger 3(condenser) after, cold-producing medium is divided into first branch road (tonifying Qi road) and second branch road, the cold-producing medium of first branch road (tonifying Qi road) enters second refrigerant chamber that enters making-up air device 5(economizer after the evaporation of refrigerant heater 9 heat absorbing parts through throttling arrangement 401 throttlings to intermediate pressure) continue to absorb heat and evaporation fully, gas supplementing opening from compressor 1 enters compressor then, the cold-producing medium of second branch road enters first refrigerant chamber of making-up air device 5(economizer) crossed cold after main road throttling arrangement 402, outdoor heat exchanger 2(evaporimeter) and gas-liquid separator 6, entering compressor from the air entry of compressor 1 then mixes with tonifying Qi after being compressed to intermediate pressure for the first time, mixed gas forms the circulation that heats of air-conditioner through compression for the second time and finally from the exhaust outlet of compressor discharge.The refrigerant of 9 pairs first branch roads of refrigerant heater (tonifying Qi road) heats, thereby increases the mass flow of the cold-producing medium of first branch road, correspondingly, increases the air compensation of making-up air device, thereby improves the heating capacity of air-conditioner, improves the heating effect of air-conditioner.But also can reduce the delivery temperature of compressor 1.
As shown in Figure 4, according to the 4th embodiment of the present utility model, different with the 3rd embodiment is, in the present embodiment, first end of second refrigerant chamber is connected with second end of first refrigerant chamber, promptly second end of first end of second refrigerant chamber and first refrigerant chamber is connected by second refrigerant line, and throttling arrangement 401 and refrigerant heater 9 are arranged on second refrigerant line.
The exhaust of compressor 1 is through indoor heat exchanger 3(condenser) after, cold-producing medium enters first refrigerant chamber of making-up air device 5(economizer), be divided into two branch roads then, a part is through second throttling arrangement, 402 inlet chamber external heat exchanger 2(evaporimeters) evaporate gasification, enter the air entry of compressor then from gas-liquid separator 6; A part is through throttling arrangement 401 and refrigerant heater 9 part endothermic gasifications in addition, enter second refrigerant chamber of making-up air device 5(economizer) be gasified totally, finally the gas supplementing opening from compressor 1 enters the compressor 1, and with compressor 1 in be compressed to for the first time intermediate pressure medium pressure gas mixes after through compression for the second time and finally discharge from exhaust outlet of compressor, the formation air-conditioner heat circulation.Refrigerant adds hot charging and changes 9 and improved the cold-producing medium mass dryness fraction that enters economizer, and the refrigerant mass fluxes on corresponding tonifying Qi road increases, thereby has improved air compensation and heating capacity, has reduced the delivery temperature of compressor simultaneously.
In embodiment one to four of the present utility model, thereby refrigerant heater 9 can substitute the electrical auxiliary heater of existing indoor apparatus of air conditioner and eliminate problems such as the security appliance hidden danger brought because of the auxiliary electro-heat device, condensation, simultaneously comparatively speaking, also improved the heating performance coefficient to a certain extent.The thermal source of the refrigerant heater of air-conditioner of the present utility model can be that the electric heating conversion also can be other thermals source, as used heat, waste heat or solar energy optical-thermal etc.Heat the input heat that circulation time can start the refrigerant heater as required and regulate the refrigerant heater.Close the refrigerant heater during kind of refrigeration cycle.
The compressor of air-conditioner of the present utility model can be the combination of the single-stage compressor of the accurate split-compressor of vortex, birotor twin-stage tonifying Qi increasing enthalpy compressor or two arbitrary forms, also can be the helical-lobe compressor or the centrifugal compressor of band tonifying Qi enthalpy-increasing function.The throttling arrangement of air-conditioner of the present utility model can be capillary, restriction sleeve, heating power expansion valve, electric expansion valve, restricting orifice or aforementioned any reasonable combination.The circulation of air-conditioner of the present utility model can add parts such as necessary four-way change-over valve or simply improve to adapt to refrigeration, heat or to heat application scenario such as water.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to air-conditioner of the present utility model,, the cold-producing medium that enters making-up air device is heated, thereby raising enters the mass dryness fraction of the cold-producing medium of making-up air device by the refrigerant heater is set on the refrigerant line between throttling arrangement and the making-up air device.Compare existing tonifying Qi and increase the enthalpy technology, can significantly improve the air compensation to compressor of making-up air device, and then effectively improve the heating capacity of air-conditioner, heat requirement when satisfying low temperature, reduced the delivery temperature of compressor simultaneously.In addition, according to the flow direction of cold-producing medium, the refrigerant heater is arranged on the downstream of throttling arrangement, has prevented to cause because the refrigerant heater makes the liquid refrigerant partial gasification non-normal working of throttling arrangement.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. air-conditioner, comprise compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3) and the making-up air device (5) that is connected with the gas supplementing opening of described compressor (1), first end of described indoor heat exchanger (3) is connected with described compressor (1), it is characterized in that
Described air-conditioner also comprises the throttling arrangement (401) that is arranged between described making-up air device (5) and the described indoor heat exchanger (3), and is arranged between described throttling arrangement (401) and the described making-up air device (5) to improve the refrigerant heater (9) of described making-up air device (5) air compensation.
2. air-conditioner according to claim 1 is characterized in that,
Described making-up air device (5) is a flash evaporation;
Described flash evaporation comprises the first cold-producing medium mouth that is connected with second end of described indoor heat exchanger (3) and the gaseous phase outlet that is connected with the gas supplementing opening of described compressor (1) and the second cold-producing medium mouth that is connected with described outdoor heat exchanger (2);
Described throttling arrangement (401) series connection is arranged between second end of described first cold-producing medium mouth and described indoor heat exchanger (3).
3. air-conditioner according to claim 2 is characterized in that,
Described refrigerant heater (9) series connection is arranged between described throttling arrangement (401) and the described first cold-producing medium mouth.
4. air-conditioner according to claim 2 is characterized in that,
Described throttling arrangement (401) is connected by first refrigerant line with the described first cold-producing medium mouth;
Described refrigerant heater (9) and described first refrigerant line are arranged between described throttling arrangement (401) and the described first cold-producing medium mouth in parallel.
5. air-conditioner according to claim 1 is characterized in that,
Described making-up air device (5) is an economizer, comprises first refrigerant chamber and second refrigerant chamber of mutual isolation and heat exchange;
Described first refrigerant chamber is connected between described indoor heat exchanger (3) and the described outdoor heat exchanger (2);
Described second refrigerant chamber is connected between the gas supplementing opening of described indoor heat exchanger (3) and described compressor (1).
6. air-conditioner according to claim 5 is characterized in that,
Described throttling arrangement (401) series connection is arranged between described indoor heat exchanger (3) and described second refrigerant chamber;
Described refrigerant heater (9) series connection is arranged between described throttling arrangement (401) and described second refrigerant chamber.
7. air-conditioner according to claim 1 is characterized in that,
Described making-up air device (5) is an economizer, comprises first refrigerant chamber and second refrigerant chamber of mutual isolation and heat exchange;
First end of described first refrigerant chamber is communicated with second end of described indoor heat exchanger (3), and second end of described first refrigerant chamber is communicated with first end of described outdoor heat exchanger (2);
First end of described second refrigerant chamber is connected with second end of described first refrigerant chamber by second refrigerant line, and second end of described second refrigerant chamber is connected with the gas supplementing opening of described compressor (1).
8. air-conditioner according to claim 7 is characterized in that,
Described throttling arrangement (401) series connection is arranged on described second refrigerant line;
Described refrigerant heater (9) series connection is arranged between first end of described throttling arrangement (401) and described second refrigerant chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320064091.6U CN203083217U (en) | 2013-02-04 | 2013-02-04 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320064091.6U CN203083217U (en) | 2013-02-04 | 2013-02-04 | Air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN203083217U true CN203083217U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320064091.6U Expired - Fee Related CN203083217U (en) | 2013-02-04 | 2013-02-04 | Air conditioner |
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| Country | Link |
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| CN (1) | CN203083217U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423621A (en) * | 2016-01-11 | 2016-03-23 | 东北电力大学 | Double-heat-source enhanced vapor injection heat pump system |
| CN106766002A (en) * | 2017-02-04 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN108317772A (en) * | 2017-01-17 | 2018-07-24 | 青岛海尔新能源电器有限公司 | A kind of Gas-supplying enthalpy-increasing system and household electrical appliance |
| CN110686308A (en) * | 2019-10-25 | 2020-01-14 | 东北电力大学 | Solar energy and air source heat pump heat energy graded utilization system |
| CN110848845A (en) * | 2019-11-18 | 2020-02-28 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing heat pump system, control method and air conditioner |
| CN111102681A (en) * | 2019-12-16 | 2020-05-05 | 珠海格力电器股份有限公司 | Compressor heating device control method, computer readable storage medium and air conditioner |
| CN112432341A (en) * | 2020-12-08 | 2021-03-02 | 合肥美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and readable storage medium |
| CN113091236A (en) * | 2020-08-21 | 2021-07-09 | 广州松下空调器有限公司 | Air conditioner liquid impact protection method and device and air conditioner |
-
2013
- 2013-02-04 CN CN201320064091.6U patent/CN203083217U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423621B (en) * | 2016-01-11 | 2017-12-05 | 东北电力大学 | A kind of double source jet enthalpy addition heat heat pumps |
| CN105423621A (en) * | 2016-01-11 | 2016-03-23 | 东北电力大学 | Double-heat-source enhanced vapor injection heat pump system |
| CN108317772B (en) * | 2017-01-17 | 2021-03-09 | 青岛海尔新能源电器有限公司 | Air-supplying and enthalpy-increasing system and household appliance |
| CN108317772A (en) * | 2017-01-17 | 2018-07-24 | 青岛海尔新能源电器有限公司 | A kind of Gas-supplying enthalpy-increasing system and household electrical appliance |
| CN106766002B (en) * | 2017-02-04 | 2019-10-01 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN106766002A (en) * | 2017-02-04 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of control method of air-conditioning, device and air-conditioning |
| CN110686308A (en) * | 2019-10-25 | 2020-01-14 | 东北电力大学 | Solar energy and air source heat pump heat energy graded utilization system |
| CN110686308B (en) * | 2019-10-25 | 2021-09-07 | 东北电力大学 | Solar energy and air source heat pump heat energy graded utilization system |
| CN110848845A (en) * | 2019-11-18 | 2020-02-28 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing heat pump system, control method and air conditioner |
| CN110848845B (en) * | 2019-11-18 | 2024-02-20 | 珠海格力电器股份有限公司 | Air supplementing and enthalpy increasing heat pump system, control method and air conditioner |
| CN111102681A (en) * | 2019-12-16 | 2020-05-05 | 珠海格力电器股份有限公司 | Compressor heating device control method, computer readable storage medium and air conditioner |
| CN113091236A (en) * | 2020-08-21 | 2021-07-09 | 广州松下空调器有限公司 | Air conditioner liquid impact protection method and device and air conditioner |
| CN113091236B (en) * | 2020-08-21 | 2021-12-28 | 广州松下空调器有限公司 | Air conditioner liquid impact protection method and device and air conditioner |
| CN112432341A (en) * | 2020-12-08 | 2021-03-02 | 合肥美的暖通设备有限公司 | Control method of air conditioning system, air conditioning system and readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20210204 |