CN203100306U - Liquid storage type air conditioner system - Google Patents
Liquid storage type air conditioner system Download PDFInfo
- Publication number
- CN203100306U CN203100306U CN201220729422.9U CN201220729422U CN203100306U CN 203100306 U CN203100306 U CN 203100306U CN 201220729422 U CN201220729422 U CN 201220729422U CN 203100306 U CN203100306 U CN 203100306U
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- heat exchanger
- magnetic valve
- type air
- storage type
- conditioning system
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Abstract
The utility model discloses a liquid storage type air conditioner system. The liquid storage type air conditioner system comprises a compressor, a four-way valve, an indoor heat exchanger, a liquid storage device and an outdoor heat exchanger, wherein the compressor, the four-way valve, the indoor heat exchanger, the liquid storage device and the outdoor heat exchanger are communicated in sequence, the liquid storage device is communicated with the indoor heat exchanger and is communicated with the outdoor heat exchanger, the liquid storage device is communicated with the compressor, a first magnetic valve is arranged on an inlet of the liquid storage device, a second magnetic valve is arranged on an outlet of the liquid storage device, a first check valve is arranged between the second magnetic valve and the outdoor heat exchanger, a second check valve is arranged between the second magnetic valve and the indoor heat exchanger, a first throttling element is connected with two ends of the first check valve in parallel, and a second throttling element is connected with two ends of the second check valve in parallel. Due to the fact that the liquid storage device, the first magnetic valve and the second magnetic valve are in cooperation, the liquid storage type air conditioner system can adjust the number of refrigerants no matter when the liquid storage type air conditioner system works in a refrigeration mode or in a heating mode, the number of the refrigerants of the liquid storage type air conditioner system is controlled, the optimal number of the refrigerants of operation is ensured, efficiency of heat exchange is exerted to the maximum extent, and operational energy efficiency of the liquid storage type air conditioner system is improved.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly a kind of water storage type air-conditioning system.
Background technology
Refrigerant in the air-conditioning system circulates in this system, realizes refrigerating operaton or heating operation pattern.For air-conditioning system, the charging amount of its refrigerant is changeless, and has an optimum value, yet wants to reach the optimum value of refrigeration or heating capacity, and the evaporation in the heat exchanger can all be finished, and needed coolant quantity is inequality.With reference to Fig. 1, in order to regulate the coolant quantity of air-conditioning system under different mode, common way is that compressor 1, cross valve 2, indoor heat exchanger 3 and outdoor heat exchanger 5 are communicated with in turn, and, can freeze, heat under two kinds of mode operations and control coolant quantity to realize air-conditioning system between indoor heat exchanger 3 and outdoor heat exchanger 5, installing a reservoir 4 storage refrigerants additional.But, this method is under certain coolant quantity prerequisite, air-conditioning system can only or heat in two kinds of operational modes in refrigeration and select one, and can't realize two-way liquid storage, and reservoir 4 volumes are fixed, its liquid storage amount also is fixing can't the variation, and along with the variation of running environment, the optimal refrigerant amount that the air-conditioning system operation needs also is continuous variation, this moment, the liquid storage amount of reservoir 4 can't be regulated thereupon, so also just exist the coolant quantity of evaporation on the high side relatively or on the low side inevitably, air-conditioning system is moved under optimal refrigerant amount state, thereby influenced the Energy Efficiency Ratio of actual motion.
The utility model content
Main purpose of the present utility model provides a kind of water storage type air-conditioning system, is intended to improve and realizes refrigeration, heats two-way liquid storage and regulate coolant quantity, brings into play heat exchanger efficiency to greatest extent, improves the operational energy efficiency of water storage type air-conditioning system.
The utility model proposes a kind of water storage type air-conditioning system, comprise the compressor, cross valve, indoor heat exchanger, reservoir and the outdoor heat exchanger that are communicated with successively, form the refrigerant loop, the inlet of described reservoir is communicated with described indoor heat exchanger and outdoor heat exchanger simultaneously, the outlet of described reservoir is communicated with the return-air mouth of described compressor, the inlet of described reservoir is provided with first magnetic valve, and the outlet of described reservoir is provided with second magnetic valve;
Be provided with first check valve between described second magnetic valve and the described outdoor heat exchanger, be provided with second check valve between described second magnetic valve and the described indoor heat exchanger to the second magnetic valve direction conducting to the second magnetic valve direction conducting;
Described first check valve two ends first throttle spare in parallel, the described second check valve two ends second throttling element in parallel.
Preferably, described water storage type air-conditioning system also comprises the indoor temperature measurement mechanism that is used to measure the described indoor heat exchanger I/O temperature difference, the outdoor temperature measurement mechanism that is used to measure the described outdoor heat exchanger I/O temperature difference, and the air-conditioner controller that is connected, is used for controlling according to the measurement result of described indoor temperature measurement mechanism or outdoor temperature measurement mechanism first magnetic valve and second magnetic valve with described indoor temperature measurement mechanism, outdoor temperature measurement mechanism, first magnetic valve and second magnetic valve.
Preferably, described indoor temperature measurement mechanism comprises first temperature sensor and second temperature sensor of being located at the outlet of described indoor heat exchanger of the inlet of being located at described indoor heat exchanger;
Described outdoor temperature measurement mechanism comprises the three-temperature sensor of the inlet of being located at described outdoor heat exchanger and is located at the 4th temperature sensor of the outlet of described outdoor heat exchanger.
Preferably, the inlet of described reservoir is positioned at the bottom of reservoir, and outlet is positioned at the top of reservoir.
Preferably, be provided with the return-air capillary between the return-air mouth of described second magnetic valve and compressor.
Preferably, described first check valve, second check valve and first magnetic valve are interconnected by three-way pipe.
Technical solutions of the utility model are by reservoir and first magnetic valve that is provided with in the gateway of reservoir and the cooperation between second magnetic valve, make this water storage type air-conditioning system no matter at refrigeration mode, still heating mode operation down, all can regulate coolant quantity, with the coolant quantity that circulates in the control water storage type air-conditioning system, guarantee the optimal refrigerant amount of water storage type air-conditioning system operation, make the water storage type air-conditioning system be in optimal evaporation degree of superheat state, bring into play heat exchanger efficiency to greatest extent, improve water storage type air-conditioning system operational energy efficiency.
Description of drawings
Fig. 1 is the structural representation of water storage type air-conditioning system in the prior art;
Fig. 2 is the structural representation of the utility model water storage type air-conditioning system;
Fig. 3 is the operation principle schematic diagram of the utility model water storage type air-conditioning system refrigeration mode;
Fig. 4 is the operation principle schematic diagram of the utility model water storage type air-conditioning system heating mode.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
The specific embodiment
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model proposes a kind of water storage type air-conditioning system.
With reference to Fig. 2 to Fig. 4, Fig. 2 is the structural representation of the utility model water storage type air-conditioning system; Fig. 3 is the operation principle schematic diagram of the utility model water storage type air-conditioning system refrigeration mode; Fig. 4 is the operation principle schematic diagram of the utility model water storage type air-conditioning system heating mode.
In the utility model embodiment, this water storage type air-conditioning system comprises the compressor 10, cross valve 20, indoor heat exchanger 30, reservoir 40 and the outdoor heat exchanger 50 that are communicated with successively, and this outdoor heat exchanger 50 is communicated with compressor 10 again, forms the refrigerant loop.This reservoir 40 has an inlet and an outlet, the inlet of this reservoir 40 is connected with indoor heat exchanger 30 and outdoor heat exchanger 40 simultaneously, the outlet of this reservoir 40 is connected with the return-air mouth of compressor 10, makes that the refrigerant in the reservoir 40 can directly be back in the compressor 10.Be provided with first magnetic valve 41 in the porch of reservoir 40, be provided with second magnetic valve 42 in the exit of reservoir 40, be respectively applied for the inflow and the outflow of refrigerant in the control reservoir 40.First check valve 61 that between second magnetic valve 42 and outdoor heat exchanger 50, is provided with, this first check valve 61 is to the direction conducting of second magnetic valve 42; Second check valve 62 that is provided with between second magnetic valve 42 and indoor heat exchanger 30, this second check valve 62 is to the direction conducting of second magnetic valve 42.The two ends that the two ends of first check valve 61 are parallel with first throttle spare 63, the second check valves 62 are parallel with second throttling element 64.
With reference to Fig. 3, when the water storage type air-conditioning system is moved under refrigeration mode, the refrigerant of gaseous state is flowed out through cross valve 20 by compressor 10, be condensed into the refrigerant of liquid state via outdoor heat exchanger 50 after, because the blocking-up of second check valve 62 makes liquid refrigerant directly flow to indoor heat exchanger 30 through second throttling element 64, and evaporates in indoor heat exchanger 30, the refrigerant of finishing after the evaporation flows in the compressors 10 through cross valve 20 again, enters next circulation.When coolant quantity was too much in the water storage type air-conditioning system, first magnetic valve 41 was opened, and the refrigerant of the liquid state that is flowed out by first check valve 61 flows in the reservoir 40 and stores, and after the coolant quantity in the water storage type air-conditioning system is in optimum state, closes first magnetic valve 41.When coolant quantity is very few in the water storage type air-conditioning system, second magnetic valve 42 is opened, refrigerant in the reservoir 40 is back in the compressor 10 by the return-air mouth of compressor 10, to replenish the refrigerant in the water storage type air-conditioning system, after coolant quantity in the water storage type air-conditioning system is in optimum state, close second magnetic valve 42.
With reference to Fig. 4, when the water storage type air-conditioning system is moved under heating mode, the refrigerant of gaseous state is flowed out through cross valve 20 by compressor 10, be condensed into the refrigerant of liquid state via indoor heat exchanger 30 after, because the blocking-up of first check valve 61 makes liquid refrigerant directly flow to outdoor heat exchanger 50 through first throttle spare 63, and evaporates in outdoor heat exchanger 50, the refrigerant of finishing after the evaporation flows in the compressors 10 through cross valve 20 again, enters next circulation.When coolant quantity was too much in the water storage type air-conditioning system, first magnetic valve 41 was opened, and the refrigerant of the liquid state that is flowed out by first check valve 61 flows in the reservoir 40 and stores, and after the coolant quantity in the water storage type air-conditioning system is in optimum state, closes first magnetic valve 41.When coolant quantity is very few in the water storage type air-conditioning system, second magnetic valve 42 is opened, refrigerant in the reservoir 40 is back in the compressor 10 by the return-air mouth of compressor 10, to replenish the refrigerant in the water storage type air-conditioning system, after coolant quantity in the water storage type air-conditioning system is in optimum state, close second magnetic valve 42.
In the present embodiment, by reservoir 40 and first magnetic valve 41 that is provided with in the gateway of reservoir 40 and the cooperation between second magnetic valve 42, make this water storage type air-conditioning system no matter at refrigeration mode, still heating mode operation down, all can regulate coolant quantity, with the coolant quantity that circulates in the control water storage type air-conditioning system, guarantee the optimal refrigerant amount of water storage type air-conditioning system operation, make the water storage type air-conditioning system be in optimal evaporation degree of superheat state, bring into play heat exchanger efficiency to greatest extent, improve water storage type air-conditioning system operational energy efficiency.
Based on the foregoing description, this water storage type air-conditioning system also can comprise indoor temperature measurement mechanism, outdoor temperature measurement mechanism and air-conditioner controller, this indoor temperature measurement mechanism is installed in the entrance and exit of indoor heat exchanger 30, is used to measure the temperature difference of indoor heat exchanger 30 I/O.This indoor temperature measurement mechanism comprises first temperature sensor 31 that is arranged on indoor heat exchanger 30 inlets and second temperature sensor 32 that is arranged on indoor heat exchanger 30 outlets.This outdoor temperature measurement mechanism is installed in the entrance and exit of outdoor heat exchanger 50, is used for the temperature difference of measuring chamber external heat exchanger 50 I/O.This indoor temperature measurement mechanism comprises three-temperature sensor 51 that is arranged on outdoor heat exchanger 50 inlets and the 4th temperature sensor 52 that is arranged on outdoor heat exchanger 50 outlets.This air-conditioner controller 70 respectively with first temperature sensor 31, second temperature sensor 32, three-temperature sensor 51, the 4th temperature sensor 52, and first magnetic valve 41 is connected with second magnetic valve 42.Air-conditioner controller 70 is according to first temperature sensor 31, second temperature sensor 32, three-temperature sensor 51, and the measurement result of the 4th temperature sensor 52 is controlled the On/Off of first magnetic valve 41 and second magnetic valve 42.
Under refrigeration mode, if first temperature sensor, 31 measured results are T1, second temperature sensor, 32 measured results are T2, when satisfying 0≤(T2-T1)≤2 ℃, illustrate that then the water storage type air-conditioning system is in the operation of optimal refrigerant amount, air-conditioner controller 70 control first magnetic valves 41 and second magnetic valve 42 all are in closed condition; When satisfying (T2-T1)＜0, illustrate that then coolant quantity is too much in the water storage type air-conditioning system, air-conditioner controller 70 controls first magnetic valve 41 is opened, and second magnetic valve 42 cuts out, and carries out liquid storage, when satisfying 0≤(T2-T1)≤2 ℃, closes first magnetic valve 41.When satisfied (T2-T1)＞2 ℃, illustrate that then coolant quantity is very few in the water storage type air-conditioning system, air-conditioner controller 70 controls first magnetic valve 41 cuts out, second magnetic valve 42 is opened, carry out fluid infusion, when satisfying 0≤(T2-T1)≤2 ℃, close second magnetic valve 42.
Under heating mode, if three-temperature sensor 51 measured results are T3, the 4th temperature sensor 52 measured results are T4, when satisfying 0≤(T4-T3)≤2 ℃, illustrate that then the water storage type air-conditioning system is in the operation of optimal refrigerant amount, air-conditioner controller 70 control first magnetic valves 41 and second magnetic valve 42 all are in closed condition; When satisfying (T4-T3)＜0, illustrate that then coolant quantity is too much in the water storage type air-conditioning system, air-conditioner controller 70 controls first magnetic valve 41 is opened, and second magnetic valve 42 cuts out, and carries out liquid storage, when satisfying 0≤(T4-T3)≤2 ℃, closes first magnetic valve 41.When satisfied (T4-T3)＞2 ℃, illustrate that then coolant quantity is very few in the water storage type air-conditioning system, air-conditioner controller 70 controls first magnetic valve 41 cuts out, second magnetic valve 42 is opened, carry out fluid infusion, when satisfying 0≤(T4-T3)≤2 ℃, close second magnetic valve 42.
In the present embodiment, by the measurement result of air-conditioner controller 70 according to indoor temperature measurement mechanism and outdoor temperature measurement mechanism, control the On/Off of first magnetic valve 41 and second magnetic valve 42, the coolant quantity of circulation in the adjustment water storage type air-conditioning system that can be accurate, real-time, further guarantee the optimal refrigerant amount of water storage type air-conditioning system operation, make the water storage type air-conditioning system be in optimal evaporation degree of superheat state, bring into play heat exchanger efficiency to greatest extent, further improve water storage type air-conditioning system operational energy efficiency.
In the above-described embodiments, the inlet of reservoir 40 is positioned at the bottom of reservoir 40, and the outlet of reservoir 40 is positioned at the top of reservoir 40.Make the refrigerant of the liquid state in the reservoir 40 have the below of reservoir 40 all the time, what discharged the top is the refrigerant of steam state all the time, replenishing of refrigerant carried out with gaseous state, reduces the influence to the fluctuation of water storage type air-conditioning system running temperature, guaranteed water storage type air-conditioning system traveling comfort and comfortableness.
In the above-described embodiments, be provided with return-air capillary 43 between the return-air mouth of second magnetic valve 42 and compressor 10.This return-air capillary 43 can throttling and step-down, and the refrigerant that has guaranteed to be back to compressor 10 is a gaseous state, to reduce the load of compressor 10, has guaranteed the compressed capability and the stationarity of compressor 10, has prolonged the service life of compressor 10.
In the above-described embodiments, be interconnected by three-way pipe 80 between first check valve 61, second check valve 62 and first magnetic valve 41.Make the conducting between first check valve 61, second check valve 62 and first magnetic valve 41 more smooth and easy, reduced the resistance that refrigerant flows.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (6)
1. water storage type air-conditioning system, comprise the compressor, cross valve, indoor heat exchanger, reservoir and the outdoor heat exchanger that are communicated with successively, form the refrigerant loop, it is characterized in that, the inlet of described reservoir is communicated with described indoor heat exchanger and outdoor heat exchanger simultaneously, the outlet of described reservoir is communicated with the return-air mouth of described compressor, and the inlet of described reservoir is provided with first magnetic valve, and the outlet of described reservoir is provided with second magnetic valve;
Be provided with first check valve between described second magnetic valve and the described outdoor heat exchanger, be provided with second check valve between described second magnetic valve and the described indoor heat exchanger to the second magnetic valve direction conducting to the second magnetic valve direction conducting;
Described first check valve two ends first throttle spare in parallel, the described second check valve two ends second throttling element in parallel.
2. water storage type air-conditioning system as claimed in claim 1, it is characterized in that, also comprise the indoor temperature measurement mechanism that is used to measure the described indoor heat exchanger I/O temperature difference, the outdoor temperature measurement mechanism that is used to measure the described outdoor heat exchanger I/O temperature difference, and the air-conditioner controller that is connected, is used for controlling according to the measurement result of described indoor temperature measurement mechanism or outdoor temperature measurement mechanism first magnetic valve and second magnetic valve with described indoor temperature measurement mechanism, outdoor temperature measurement mechanism, first magnetic valve and second magnetic valve.
3. water storage type air-conditioning system as claimed in claim 2 is characterized in that, described indoor temperature measurement mechanism comprises first temperature sensor of the inlet of being located at described indoor heat exchanger and is located at second temperature sensor of the outlet of described indoor heat exchanger;
Described outdoor temperature measurement mechanism comprises the three-temperature sensor of the inlet of being located at described outdoor heat exchanger and is located at the 4th temperature sensor of the outlet of described outdoor heat exchanger.
4. as any described water storage type air-conditioning system in the claim 1 to 3, it is characterized in that the inlet of described reservoir is positioned at the bottom of reservoir, outlet is positioned at the top of reservoir.
5. water storage type air-conditioning system as claimed in claim 4 is characterized in that, is provided with the return-air capillary between the return-air mouth of described second magnetic valve and compressor.
6. water storage type air-conditioning system as claimed in claim 5 is characterized in that, described first check valve, second check valve and first magnetic valve are interconnected by three-way pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220729422.9U CN203100306U (en) | 2012-12-26 | 2012-12-26 | Liquid storage type air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220729422.9U CN203100306U (en) | 2012-12-26 | 2012-12-26 | Liquid storage type air conditioner system |
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| CN203100306U true CN203100306U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220729422.9U Expired - Lifetime CN203100306U (en) | 2012-12-26 | 2012-12-26 | Liquid storage type air conditioner system |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604170A (en) * | 2013-11-14 | 2014-02-26 | 广东美的制冷设备有限公司 | Heating and cooling air conditioner |
| CN105042700A (en) * | 2015-09-02 | 2015-11-11 | 广东美的制冷设备有限公司 | Split floor type air conditioner and control method and control device thereof |
| CN105402958A (en) * | 2015-12-29 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner and control method of air conditioning refrigerants |
| CN106871470A (en) * | 2017-02-05 | 2017-06-20 | 广东美的暖通设备有限公司 | The pressure regulating method of air-conditioning system and air-conditioning system |
| CN107131597A (en) * | 2017-06-12 | 2017-09-05 | 广东美的暖通设备有限公司 | Air conditioner and its control method, device and computer-readable recording medium |
| CN104676944B (en) * | 2013-11-28 | 2018-04-03 | 合肥美的暖通设备有限公司 | Air-conditioning system and its refrigerant adjusting method |
| CN108731224A (en) * | 2018-08-31 | 2018-11-02 | 广东美的制冷设备有限公司 | Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system |
| CN109724203A (en) * | 2018-12-29 | 2019-05-07 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN111059761A (en) * | 2018-10-17 | 2020-04-24 | 株式会社日本伊藤美珂 | Heat pump water heater |
| CN111692772A (en) * | 2020-06-23 | 2020-09-22 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning equipment and control method of air conditioning equipment |
| CN111692773A (en) * | 2020-06-23 | 2020-09-22 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning equipment and control method of air conditioning equipment |
| CN112833577A (en) * | 2021-01-18 | 2021-05-25 | 海信（广东）空调有限公司 | Air conditioner |
| CN113405243A (en) * | 2020-03-16 | 2021-09-17 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
| CN113531933A (en) * | 2021-07-05 | 2021-10-22 | 珠海格力电器股份有限公司 | Refrigerant circulation quantity adjusting method and device and air conditioning system |
| CN113654264A (en) * | 2021-08-05 | 2021-11-16 | 青岛海尔空调电子有限公司 | Air source heat pump system and control method thereof |
| WO2021258689A1 (en) * | 2020-06-23 | 2021-12-30 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning apparatus, and control method for air conditioning apparatus |
| CN114234516A (en) * | 2021-12-15 | 2022-03-25 | 海信（山东）冰箱有限公司 | Refrigerator and refrigerant flow control method |
| CN114680360A (en) * | 2022-03-04 | 2022-07-01 | 青岛海尔空调电子有限公司 | Drying system for tobacco and control method for tobacco |
| WO2023103675A1 (en) * | 2021-12-07 | 2023-06-15 | 青岛海信日立空调系统有限公司 | Air conditioner |
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2012
- 2012-12-26 CN CN201220729422.9U patent/CN203100306U/en not_active Expired - Lifetime
Cited By (23)
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| CN103604170A (en) * | 2013-11-14 | 2014-02-26 | 广东美的制冷设备有限公司 | Heating and cooling air conditioner |
| CN104676944B (en) * | 2013-11-28 | 2018-04-03 | 合肥美的暖通设备有限公司 | Air-conditioning system and its refrigerant adjusting method |
| CN105042700A (en) * | 2015-09-02 | 2015-11-11 | 广东美的制冷设备有限公司 | Split floor type air conditioner and control method and control device thereof |
| CN105402958A (en) * | 2015-12-29 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner and control method of air conditioning refrigerants |
| CN106871470A (en) * | 2017-02-05 | 2017-06-20 | 广东美的暖通设备有限公司 | The pressure regulating method of air-conditioning system and air-conditioning system |
| CN106871470B (en) * | 2017-02-05 | 2019-06-04 | 广东美的暖通设备有限公司 | The pressure regulating method of air-conditioning system |
| CN107131597B (en) * | 2017-06-12 | 2019-12-20 | 广东美的暖通设备有限公司 | Air conditioner, control method and device thereof, and computer-readable storage medium |
| CN107131597A (en) * | 2017-06-12 | 2017-09-05 | 广东美的暖通设备有限公司 | Air conditioner and its control method, device and computer-readable recording medium |
| CN108731224A (en) * | 2018-08-31 | 2018-11-02 | 广东美的制冷设备有限公司 | Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system |
| CN111059761A (en) * | 2018-10-17 | 2020-04-24 | 株式会社日本伊藤美珂 | Heat pump water heater |
| CN109724203A (en) * | 2018-12-29 | 2019-05-07 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN113405243A (en) * | 2020-03-16 | 2021-09-17 | 青岛海尔空调电子有限公司 | Control method of air conditioning system |
| EP4130611A4 (en) * | 2020-06-23 | 2023-10-18 | Chongqing Midea General Refrigeration Equipment Co., Ltd. | Heat exchange system, air conditioning apparatus, and control method for air conditioning apparatus |
| CN111692772A (en) * | 2020-06-23 | 2020-09-22 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning equipment and control method of air conditioning equipment |
| CN111692773A (en) * | 2020-06-23 | 2020-09-22 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning equipment and control method of air conditioning equipment |
| WO2021258689A1 (en) * | 2020-06-23 | 2021-12-30 | 重庆美的通用制冷设备有限公司 | Heat exchange system, air conditioning apparatus, and control method for air conditioning apparatus |
| CN112833577A (en) * | 2021-01-18 | 2021-05-25 | 海信（广东）空调有限公司 | Air conditioner |
| CN113531933A (en) * | 2021-07-05 | 2021-10-22 | 珠海格力电器股份有限公司 | Refrigerant circulation quantity adjusting method and device and air conditioning system |
| CN113654264A (en) * | 2021-08-05 | 2021-11-16 | 青岛海尔空调电子有限公司 | Air source heat pump system and control method thereof |
| CN113654264B (en) * | 2021-08-05 | 2023-10-20 | 青岛海尔空调电子有限公司 | Air source heat pump system and control method thereof |
| WO2023103675A1 (en) * | 2021-12-07 | 2023-06-15 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN114234516A (en) * | 2021-12-15 | 2022-03-25 | 海信（山东）冰箱有限公司 | Refrigerator and refrigerant flow control method |
| CN114680360A (en) * | 2022-03-04 | 2022-07-01 | 青岛海尔空调电子有限公司 | Drying system for tobacco and control method for tobacco |
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