CN104990173A - Air conditioner, and fireproof control method, controller and air conditioner system thereof - Google Patents
Air conditioner, and fireproof control method, controller and air conditioner system thereof Download PDFInfo
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- CN104990173A CN104990173A CN201510420265.1A CN201510420265A CN104990173A CN 104990173 A CN104990173 A CN 104990173A CN 201510420265 A CN201510420265 A CN 201510420265A CN 104990173 A CN104990173 A CN 104990173A
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- air
- conditioner
- valve
- storage device
- heat converter
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner, and a fireproof control method, a controller and an air conditioner system thereof. The air conditioner comprises an indoor heat exchanger and an outdoor device. The outdoor device comprises a compressor, a four-way valve, an outdoor heat exchanger and a throttling mechanism which are all sequentially connected. One end of the indoor heat exchanger is connected with the throttling mechanism. The other end of the indoor heat exchanger is connected with the four-way valve. The outdoor device further comprises a storage device, wherein the first end of the storage device is connected with the indoor heat exchanger and the four-way valve, and the second end of the storage device is connected with the four-way valve and the compressor. The outdoor device further comprises a first electromagnetic valve connected between the outdoor heat exchanger and the throttling mechanism, and/or a second electromagnetic valve connected between the first end of the storage device and the indoor heat exchanger. The storage device is used for recycling refrigerants in the indoor heat exchanger through the first electromagnetic valve and/or the second electromagnetic valve when the air conditioner is shut down. The combustion explosion possibility caused when refrigerants leak is reduced through the storage device.
Description
Technical field
The present invention relates to home appliance technical field, particularly relate to a kind of air-conditioner, the fire prevention control method of air-conditioner, controller and air-conditioning system.
Background technology
Air-conditioning system adopts combustible refrigerant, such as R290/R32/R161 etc., although for ensureing that room use safety generally reduces the charging amount of this cold-producing medium all as far as possible, be in safe concentration with the room after ensureing this refrigrant leakage.But the air-conditioner of charging refrigerant, when leaking, can cause cold-producing medium to be piled up in air-conditioner or around it, may exceed the safe concentration of the lower flammability limit (LFL) of cold-producing medium, has the danger producing fire.
For taking precautions against this type of risk, being generally take at indoor pusher side installation detecting device, when finding that indoor exists potential safety hazard, by the refrigerant-recovery of indoor set to off-premises station, thus avoiding the harm that cold-producing medium may cause.This kind of mode still has certain potential safety hazard, and now air-conditioning system is necessary for power-up state, if Circuit Interrupt during fire, then cannot carry out refrigerant-recovery; If two is that indoor refrigrant leakage occurs, recovery action is carried out in now start the danger producing electric spark.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of air-conditioner, the fire prevention control method of air-conditioner, controller and air-conditioning system, reducing the indoor possibility causing combustion explosion because there is leakage of refrigerant.
First aspect, the invention provides a kind of air-conditioner, comprise: indoor heat converter and outdoor equipment, described outdoor equipment comprises the compressor, cross valve, outdoor heat converter and the throttle mechanism that connect successively, described indoor heat converter one end is connected with described throttle mechanism, the other end is connected with described cross valve, described outdoor equipment also comprises: storage device, described storage device first end is connected with described cross valve with described indoor heat converter, and the second end is connected with described compressor with described cross valve;
Described storage device, for realizing the cold-producing medium reclaimed when this air-conditioner shuts down in described indoor heat converter.
Optionally, described outdoor equipment also comprises: be connected to the first magnetic valve between described outdoor heat converter and described throttle mechanism, and/or is connected to the second magnetic valve between the first end of described storage device and described indoor heat converter.
Optionally, described storage device comprises:
The 3rd magnetic valve connected successively, check valve, safety can and the 4th magnetic valve, described 3rd magnetic valve one end is connected with described cross valve with described second magnetic valve, and the other end is connected with described check valve; Described 4th magnetic valve one end is connected with described compressor with described cross valve, and the other end is connected with described safety can.
Optionally, described storage device also comprises the leakage of refrigerant valve be arranged on described safety can.
Optionally, between described throttle mechanism and described indoor heat converter, the first stop valve is installed;
Between described second magnetic valve and described 3rd magnetic valve, the second stop valve is installed.
Second aspect, present invention also offers a kind of controller, comprising:
First detecting unit, for detecting the operational mode of air-conditioner;
Control unit, for when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in indoor heat converter is expelled to described outdoor equipment and compressor simultaneously;
Closing unit, for after default first time period, closes each parts run in described indoor fan and outdoor equipment.
Optionally, described controller also comprises the second the detecting unit whether cold-producing medium for detecting in described storage device leaks.
The third aspect, present invention also offers a kind of air-conditioning system, comprises the air-conditioner according to any one of claim 1-5 and controller as claimed in claims 6 or 7, and described controller is connected with described air-conditioner.
Fourth aspect, present invention also offers a kind of air-conditioner based on above-mentioned controller fire prevention control method, comprising:
First detecting unit detects the operational mode of air-conditioner;
Control unit is when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in indoor heat converter is expelled to described outdoor equipment and compressor simultaneously;
After default first time period, closing unit closes the parts run in described indoor fan and outdoor equipment.
5th aspect, present invention also offers a kind of means of defence of the leakage of refrigerant based on above-mentioned controller, comprising:
Control unit air-conditioner for energising and stopped status time, receive the leakage alarm signal of cold-producing medium that the second detecting unit sends;
Described control unit sends the actuating signal being used for discharging refrigerant to refrigrant leakage valve, open outdoor fan simultaneously, to make described refrigrant leakage valve open, is discharged by the cold-producing medium be stored in described storage device;
After presetting for the second time period, closing unit closes described outdoor fan.
As shown from the above technical solution, the invention provides a kind of air-conditioner, the fire prevention control method of air-conditioner, controller and air-conditioning system, this air-conditioner by arranging storage device in outdoor equipment, realizing the cold-producing medium reclaimed when this air-conditioner shuts down in described indoor heat converter, reducing the indoor possibility causing combustion explosion because there is leakage of refrigerant.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these figure.
Fig. 1 is the structural representation of a kind of air-conditioner that one embodiment of the invention provides;
The structural representation of the controller that Fig. 2 provides for one embodiment of the invention;
Fig. 3 is the schematic flow sheet of the fire prevention control method of a kind of air-conditioner that one embodiment of the invention provides;
Fig. 4 is the schematic flow sheet of the fire prevention control method of a kind of air-conditioner that another embodiment of the present invention provides;
Fig. 5 for one embodiment of the invention provide heat time air-conditioner run operation principle schematic diagram;
The schematic flow sheet of the means of defence of the leakage of refrigerant that Fig. 6 provides for one embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 shows the structural representation of a kind of air-conditioner that the present embodiment provides, as shown in Figure 1, this air-conditioner comprises: indoor heat converter 1 and outdoor equipment, wherein said outdoor equipment comprises the compressor 2 connected successively, cross valve 3, outdoor heat converter 4 and throttle mechanism 5, described indoor heat converter 1 one end is connected with described throttle mechanism 5, the other end is connected with described cross valve 3, described outdoor equipment also comprises: storage device 6, described storage device first end is connected with described cross valve 3 with described indoor heat converter 1, second end is connected with described compressor 2 with described cross valve 3.
Described storage device 6, for realizing the cold-producing medium reclaimed when this air-conditioner shuts down in described indoor heat converter 1.
Above-mentioned air-conditioner, by arranging storage device 6 in outdoor equipment, realizes the cold-producing medium reclaimed when this air-conditioner shuts down in described indoor heat converter 1, reduces the indoor possibility causing combustion explosion because there is leakage of refrigerant.
Concrete, what storage device 6 stored is reclaim the cold-producing medium in the indoor heat exchanger in indoor heat converter 1 when air-conditioner shuts down.
One of the present embodiment preferred embodiment in, described outdoor equipment also comprises: be connected to the first magnetic valve 7 between described outdoor heat converter 4 and described throttle mechanism 5, and/or is connected to the second magnetic valve 8 between the first end of described storage device and described indoor heat converter 1.
Described storage device 6 comprises: the 3rd magnetic valve 61 connected successively, check valve 62, safety can 63 and the 4th magnetic valve 64, and described 3rd magnetic valve 61 one end is connected with described cross valve 3 with described second magnetic valve 8, and the other end is connected with described check valve 62; Described 4th magnetic valve 64 one end is connected with described compressor 1 with described cross valve 3, and the other end is connected with described safety can 63.Safety can 63 is also provided with refrigrant leakage valve 65.
It should be noted that, one end that above-mentioned 4th magnetic valve 64 does not connect described safety can 63 is connected with described compressor 1 with described cross valve 3 respectively, wherein the join domain of the 4th magnetic valve 64 and cross valve 3 and compressor 1 region that is compressor 2 described in the refrigerant flow direction in cross valve 3.
For example, above-mentioned air-conditioner can for having the air-conditioner of refrigerating function, also can for having the air-conditioner of heat-production functions, can also for having the air-conditioner of refrigeration and heat-production functions simultaneously, above-mentioned first magnetic valve 7 can flow out the pipeline break-make of outdoor heat converter 4 for cold-producing medium during for freezing; Second magnetic valve 8 can flow out the pipeline break-make of outdoor heat converter 4 for cold-producing medium during for heating; 3rd magnetic valve 61 can flow into the pipeline break-make of safety can 63 for cold-producing medium during for freezing; 4th magnetic valve 64 can flow into the pipeline break-make of safety can 63 for cold-producing medium during for heating.
In the present embodiment, the first stop valve 9 is installed between throttle mechanism 5 and described indoor heat converter 1; Between described second magnetic valve 8 and described 3rd magnetic valve 61, second stop valve 10 is installed.
Fig. 2 shows the structural representation of the controller that the embodiment of the present invention provides, and as shown in Figure 2, this controller comprises:
First detecting unit 21, for detecting the operational mode of air-conditioner;
Control unit 22, for when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in described indoor heat converter is expelled to described outdoor equipment and compressor simultaneously.
Closing unit 23, for after default first time period, closes each parts run in described indoor fan and outdoor equipment.
In a particular application, above-mentioned controller also comprises not shown the second detecting unit whether leaked for the cold-producing medium detected in the safety can of described storage device.
Fig. 3 shows the schematic flow sheet of the fire prevention control method of the air-conditioner based on above-mentioned controller that the embodiment of the present invention provides, and as shown in Figure 3, the method comprises the following steps:
301, the first detecting unit detects the operational mode of air-conditioner.
302, control unit is when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in described indoor heat converter is expelled to described outdoor equipment and compressor simultaneously.
303, after default first time period, closing unit closes the parts run in described indoor fan and outdoor equipment.
Said method is by after air-conditioner shutdown, according to the operational mode before the shutdown of this air-conditioner, control at least one electromagnetic valve switch, the indoor heat converter 1 and the outdoor equipment that control described air-conditioner continue to run simultaneously, so that the cold-producing medium in described indoor heat converter 1 is expelled to described outdoor equipment, by emptying for the cold-producing medium in indoor heat converter 1, reduce the indoor possibility causing combustion explosion because there is leakage of refrigerant.
Below according to the operational mode of air-conditioner, said method is described in detail.
As shown in Figure 4, the fire prevention control method of above-mentioned air-conditioner specifically comprises the following steps:
401, detect the operational mode of air-conditioner, if when being refrigeration mode, perform step 402-403; Otherwise, perform step 404-405.
402, when receiving off signal, controlling at least one electromagnetic valve switch, controlling the compressor of air-conditioner, indoor fan and outdoor fan simultaneously and continuing to run.
403, after presetting the t1 time period, compressor, indoor fan and outdoor fan is stopped to continue to run.
404, when receiving off signal, control at least one electromagnetic valve switch, the compressor and the indoor fan that control air-conditioner continue to run simultaneously.
405, after presetting the t2 time period, compressor and indoor fan is stopped to continue to run.
Said method reduces the indoor possibility causing combustion explosion because there is leakage of refrigerant.
Operation principle when being refrigeration mode to the operational mode of above-mentioned air-conditioner is below described in detail.
As shown in Figure 1, the direction of arrow in figure is the loop direction of cold-producing medium.When the operational mode of air-conditioner is refrigeration mode, the first magnetic valve 7, second magnetic valve 8, the 3rd magnetic valve 61 and the 4th magnetic valve 64 are all in channel status, and safety can 63 serves the effect of liquid storage cylinder, and the kind of refrigeration cycle of air-conditioner is normally run.
When this air-conditioner receives off signal, control the first magnetic valve 7 open circuit, the second magnetic valve 8 path, 3rd magnetic valve 61 path, 4th magnetic valve 64 path, outdoor fan and compressor 2 continue to run, and indoor fan turns low wind, now, cold-producing medium no longer flows into indoor, cold-producing medium by indoor heat converter 1, through the second magnetic valve 8, a part flows into safety can 63, and a part gets back to compressor 2 through cross valve 3 in addition.
After the t1 time, outdoor fan, compressor 2 stop, and indoor fan stops.The cold-producing medium flowing into safety can 63 stores due to the effect of check valve 62, and part of refrigerant deposited by compressor 2, and outdoor heat converter 4 has a little, and indoor heat converter 1 does not then have cold-producing medium.So just effectively reduce the combustible concentration of cold-producing medium, fire-retardant effect is served to indoor, improve the security of air-conditioner.
Operation principle when being heating mode to the operational mode of above-mentioned air-conditioner is below described in detail.
As shown in Figure 5, the direction of arrow in figure is the loop direction of cold-producing medium.When the operational mode of air-conditioner is heating mode, control the first magnetic valve 7, second magnetic valve 8, the 4th magnetic valve 64 is all in channel status, the 3rd magnetic valve 61 is in off state, when heating, a little cold-producing medium enters safety can 63, does not participate in the circulation of refrigeration system.The cold-producing medium that during owing to heating, air-conditioner needs, than few during refrigeration, adopts the method can also improve the heating efficiency of refrigeration plant.
When this air-conditioner receives off signal, control the first magnetic valve 7 path, second magnetic valve 8 open circuit, 3rd magnetic valve 61 open circuit, 4th magnetic valve 64 path, outdoor fan is out of service, compressor 2 continues to run, indoor fan turns low wind, now, cold-producing medium no longer flows into indoor, cold-producing medium can by indoor heat converter 1, through throttle mechanism 5, first magnetic valve 7, inflow outdoor heat exchanger 4, because compressor 2 continues to run, cold-producing medium in inflow outdoor heat exchanger 4 is through cross valve 3, a part flows into safety can 63, another part gets back to compressor 2.
After the t2 time, control the 4th magnetic valve 64 open circuit, compressor 2 stops, and indoor fan is out of service.Flow into the effect of cold-producing medium due to check valve 62 of safety can 63, store, compressor 2 stores part of refrigerant, have a little in outdoor heat converter 4, and in indoor heat converter 1 in there is no cold-producing medium, so just effectively reduce the combustible concentration of cold-producing medium, fire-retardant effect is served to indoor, improve the security of air-conditioner.
Fig. 6 shows the schematic flow sheet of the means of defence of a kind of leakage of refrigerant based on above-mentioned controller that the present embodiment provides, and as shown in Figure 6, the method comprises the steps:
601, control unit air-conditioner for energising and stopped status time, receive the leakage alarm signal of cold-producing medium that the second detecting unit sends;
602, described control unit sends the actuating signal being used for discharging refrigerant to refrigrant leakage valve, opens outdoor fan simultaneously, to make described refrigrant leakage valve open, is discharged by the cold-producing medium be stored in described storage device;
603, after presetting for the second time period, closing unit closes described outdoor fan.
Said method reduces the outdoor possibility causing combustion explosion because there is leakage of refrigerant.
The embodiment of the present invention additionally provides a kind of air-conditioning system, and comprise above-mentioned air-conditioner and above-mentioned controller, described controller is connected with described air-conditioner.
Will be understood that, this controller is all connected with each parts in above-mentioned air-conditioner, for controlling unlatching or the closedown of each parts.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that; It still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an air-conditioner, comprise: indoor heat converter and outdoor equipment, described outdoor equipment comprises the compressor, cross valve, outdoor heat converter and the throttle mechanism that connect successively, described indoor heat converter one end is connected with described throttle mechanism, the other end is connected with described cross valve, it is characterized in that, described outdoor equipment also comprises: storage device, described storage device first end is connected with described cross valve with described indoor heat converter, and the second end is connected with described compressor with described cross valve;
Described storage device, for realizing the cold-producing medium reclaimed when this air-conditioner shuts down in described indoor heat converter.
2. air-conditioner according to claim 1, it is characterized in that, described outdoor equipment also comprises: be connected to the first magnetic valve between described outdoor heat converter and described throttle mechanism, and/or is connected to the second magnetic valve between the first end of described storage device and described indoor heat converter.
3. air-conditioner according to claim 2, is characterized in that, described storage device comprises:
The 3rd magnetic valve connected successively, check valve, safety can and the 4th magnetic valve, described 3rd magnetic valve one end is connected with described cross valve with described second magnetic valve, and the other end is connected with described check valve; Described 4th magnetic valve one end is connected with described compressor with described cross valve, and the other end is connected with described safety can.
4. air-conditioner according to claim 3, is characterized in that, described storage device also comprises the leakage of refrigerant valve be arranged on described safety can.
5. air-conditioner according to claim 3, is characterized in that, is provided with the first stop valve between described throttle mechanism and described indoor heat converter;
Between described second magnetic valve and described 3rd magnetic valve, the second stop valve is installed.
6. a controller, is characterized in that, comprising:
First detecting unit, for detecting the operational mode of air-conditioner;
Control unit, for when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in indoor heat converter is expelled to described outdoor equipment and compressor simultaneously;
Closing unit, for after default first time period, closes each parts run in described indoor fan and outdoor equipment.
7. controller according to claim 6, is characterized in that, described controller also comprises the second the detecting unit whether cold-producing medium for detecting in described storage device leaks.
8. an air-conditioning system, is characterized in that, comprises the air-conditioner according to any one of claim 1-5 and controller as claimed in claims 6 or 7, and described controller is connected with described air-conditioner.
9., based on an air-conditioner fire prevention control method for the controller described in claim 6 or 7, it is characterized in that, comprising:
First detecting unit detects the operational mode of air-conditioner;
Control unit is when receiving off signal, according to the operational mode of described air-conditioner, control at least one electromagnetic valve switch, adjust the indoor fan of described air-conditioner and the operational factor of outdoor equipment, with in the storage device that the cold-producing medium in indoor heat converter is expelled to described outdoor equipment and compressor simultaneously;
After default first time period, closing unit closes the parts run in described indoor fan and outdoor equipment.
10. based on a means of defence for the leakage of refrigerant of the controller described in claim 6 or 7, it is characterized in that, comprising:
Control unit air-conditioner for energising and stopped status time, receive the leakage alarm signal of cold-producing medium that the second detecting unit sends;
Described control unit sends the actuating signal being used for discharging refrigerant to refrigrant leakage valve, open outdoor fan simultaneously, to make described refrigrant leakage valve open, is discharged by the cold-producing medium be stored in described storage device;
After presetting for the second time period, closing unit closes described outdoor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510420265.1A CN104990173B (en) | 2015-07-16 | 2015-07-16 | Fire prevention control method, controller and the air-conditioning system of air conditioner, air conditioner |
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| CN201510420265.1A CN104990173B (en) | 2015-07-16 | 2015-07-16 | Fire prevention control method, controller and the air-conditioning system of air conditioner, air conditioner |
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| CN104990173A true CN104990173A (en) | 2015-10-21 |
| CN104990173B CN104990173B (en) | 2018-09-14 |
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| CN105757799A (en) * | 2016-03-14 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioner utilizing combustible coolant and control method |
| CN107421059A (en) * | 2017-06-09 | 2017-12-01 | 宁波奥克斯电气股份有限公司 | Control method for preventing flammable refrigerant from entering indoor side when air conditioner is shut down |
| CN109974192A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | Control method and device for air conditioner refrigerant recovery |
| CN110173815A (en) * | 2019-05-31 | 2019-08-27 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner, device |
| CN110542183A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110822664A (en) * | 2019-11-27 | 2020-02-21 | 广东美的制冷设备有限公司 | Refrigerant recovery method and system of air conditioner and air conditioner |
| CN111578443A (en) * | 2020-05-08 | 2020-08-25 | 青岛海尔空调器有限总公司 | Control system and method and control device of air conditioner |
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| CN105757799A (en) * | 2016-03-14 | 2016-07-13 | 广东美的制冷设备有限公司 | Air conditioner utilizing combustible coolant and control method |
| CN105757799B (en) * | 2016-03-14 | 2018-12-28 | 广东美的制冷设备有限公司 | Use the air conditioner and control method of combustible refrigerant |
| CN107421059A (en) * | 2017-06-09 | 2017-12-01 | 宁波奥克斯电气股份有限公司 | Control method for preventing flammable refrigerant from entering indoor side when air conditioner is shut down |
| CN109974192A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | Control method and device for air conditioner refrigerant recovery |
| CN109974192B (en) * | 2019-04-01 | 2020-11-10 | 珠海格力电器股份有限公司 | Control method and device for air conditioner refrigerant recovery |
| CN110173815A (en) * | 2019-05-31 | 2019-08-27 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner, device |
| CN110542183A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110542183B (en) * | 2019-09-12 | 2021-09-21 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110822664A (en) * | 2019-11-27 | 2020-02-21 | 广东美的制冷设备有限公司 | Refrigerant recovery method and system of air conditioner and air conditioner |
| CN111578443A (en) * | 2020-05-08 | 2020-08-25 | 青岛海尔空调器有限总公司 | Control system and method and control device of air conditioner |
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|---|---|
| CN104990173B (en) | 2018-09-14 |
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