CN1888644A - Air conditioner refrigerant leakaging sensing method - Google Patents
Air conditioner refrigerant leakaging sensing method Download PDFInfo
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- CN1888644A CN1888644A CN 200510013966 CN200510013966A CN1888644A CN 1888644 A CN1888644 A CN 1888644A CN 200510013966 CN200510013966 CN 200510013966 CN 200510013966 A CN200510013966 A CN 200510013966A CN 1888644 A CN1888644 A CN 1888644A
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Abstract
This invention is refrigerants leakage perception method of air conditioner. It includes: the first step: whether air conditioner driving time has passed the set time is judged; temperature measurement step: when air conditioner driving time has passed the set time, the heat exchanger temperature sensor and absorbed air temperature sensor measure the temperature. The heat exchanger temperature sensor is set on the indoor heat exchanger. The absorbed air temperature sensor is set on the indoor machine; comparison step: the temperature difference between indoor heat exchanger (Te) and absorbed air (Ta) is compared with the stored data in controlling part; refrigerants leakage judging step: when the temperature difference is smaller than the set data, then the refrigerants have already leaked.
Description
Technical field
The present invention relates to a kind of refrigerant leakaging sensing method of air regulator, in more detail the refrigerant leakaging sensing method that comes perception coolant leakage whether air regulator by the temperature and the mensuration indoor set suction inlet temperature difference (Δ T) of mensuration indoor heat converter refrigerant conduit.
Background technology
Fig. 8 is the air regulator structure chart according to prior art.
As shown in Figure 8, the air body adjuster according to prior art comprises that compressor 1, outdoor heat exchanger 2, indoor side heat exchanger 4 and expansion valve 3 constitute.
, use the media of refrigerant as the running air regulator here, air regulator drives according to the refrigerant loop direction and heats circulation or kind of refrigeration cycle.
And the refrigerant that circulates in air regulator is when air regulator drives the long period, and mistake when being provided with or user such as do not note at the situation of the tube leaks that causes.
So air regulator has the method for perception coolant leakage.
Here, former Korea S publication communique is being put down in writing the air regulator refrigerant leakaging sensing method 1998-28567 number.
The temperature of perception and made the specified temp of form on the indoor heat converter relatively to the effect that of the air regulator refrigerant leakaging sensing method that Korea S's publication communique is 1998-2856 number, the temperature of indoor heat converter is judged as the method for the situation of coolant leakage than time more than the high designated value of specified temp.
Moreover, Korea S's publication communique 1998-2856 number is gone up indoor heat converter conduit temperature relatively and has been made the specified temp of form, and the specified temp that relatively compensates for the temperature difference that compensates indoor temperature and outdoor temperature and the indoor heat converter temperature method of coming the perception coolant leakage.
And the specified temp that Korea S's publication communique has been put down in writing indoor heat converter conduit temperature relatively for 1998-2856 number again and made form comes the perception coolant leakage, and these results are presented at method on the display unit.
As, according to the refrigerant leakaging sensing method of prior art is that the refrigerant that fills in the air regulator into then reduces the thermal efficiency if leak, so the temperature of measuring the temperature of indoor heat converter and indoor heat converter when heating is than being judged as coolant leakage more than the designated value high the time, and, be judged as refrigerant and keep appropriate amount keeping designated value with in interior.
But former coolant leakage method is a temperature whether more than the designated value of only judging the indoor heat converter of measuring, so according to the coolant leakage whether perception of the operating state of evaluated error and air regulator difficulty relatively.
Summary of the invention
The present invention confirms the refrigerant leakaging sensing method of coolant leakage whether air regulator more accurately for the temperature difference that solves the technical problem that exists in the above-mentioned technology and provide intake air temperature that a kind of indoor set by air regulator sucks and indoor heat converter.
The technical scheme that the present invention takes for the technical problem that exists in the above-mentioned technology of solution is:
The refrigerant leakaging sensing method of the air regulator of a kind of the 1st feature of the present invention comprises the 1st stage of judging process fixed time when driving air regulator; Heat-exchanger temperature sensor that has been provided with from indoor heat converter when having passed through the fixed time after air regulator drives and the inhaled air temperature sensor that is arranged on the indoor set receive the temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the temperature measuring stage and suck temperature (Ta) difference of air and control part the comparison phase of the data comparison that stored; When the temperature difference of comparison phase is littler than data, be judged as the coolant leakage that refrigerant leaked and judge the stage.
The refrigerant leakaging sensing method of the air regulator of the 2nd feature according to the present invention comprises the 1st stage of judging process fixed time when driving air regulator; Heat-exchanger temperature sensor that has been provided with from indoor heat converter when having passed through the fixed time after air regulator drives and the inhaled air temperature sensor that is arranged on the indoor set receive the temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the temperature measuring stage and suck the temperature (Ta) poor (Δ T) of air and control part the data comparison that stored, and C.T poor (Δ T) comparison phase littler or bigger than specific data 2 than the specific data that stored 1; Littler or be judged as the coolant leakage that refrigerant leaked than specific data 2 in big and judge the stage in the temperature difference of comparison phase than the specific data that stored 1.
Advantage and good effect that the present invention has are: the difference that the refrigerant leakaging sensing method of air regulator of the present invention has between the temperature of measuring by the arbitrary portion of suction air that sucks to indoor set and indoor heat converter is come the more correctly leakage whether advantage of perception refrigerant.Refrigerant leakaging sensing method according to air regulator of the present invention is guaranteed different separately data according to the each several part of indoor heat converter, so have the more correctly leakage whether advantage of perception refrigerant.Whether the leakage that comes the perception refrigerant according to the temperature (Te) and the indoor set suction inlet temperature (Ta) poor (Δ T) of indoor heat converter conduit according to the refrigerant leakaging sensing method of air regulator of the present invention, has device and constitute and be easy to advantage.
Description of drawings
Fig. 1 is the oblique view of the air regulator according to the present invention,
Fig. 2 is the structure chart of the air regulator according to the present invention,
Fig. 3 is the flow chart of the air regulator refrigerant leakaging sensing method of the 1st embodiment according to the present invention,
Fig. 4 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and indoor heat converter branch end,
Fig. 5 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and the indoor heat converter port of export,
Fig. 6 is the flow chart of the air regulator refrigerant leakaging sensing method of the 2nd embodiment according to the present invention,
Fig. 7 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and indoor heat converter arrival end,
Fig. 8 is the air regulator structure chart according to prior art.
Main symbol description
10: compressor 20: outdoor heat converter
30: expansion valve 40: indoor heat converter
42: coolant piping 44: cooling fin
50: indoor heat converter arrival end temperature sensor
60: indoor heat converter branch end temperature sensor
70: indoor heat converter port of export temperature sensor
100: indoor set 200: off-premises station
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Fig. 1 is the oblique view of the air regulator according to the present invention, Fig. 2 is the structure chart of the air regulator according to the present invention, Fig. 3 is the flow chart of the air regulator refrigerant leakaging sensing method of the 1st embodiment according to the present invention, Fig. 4 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and indoor heat converter branch end, and Fig. 5 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and the indoor heat converter port of export.
As Fig. 1 or shown in Figure 2, air body adjuster according to the present invention comprises that the control part (not shown) that compressor 10, outdoor heat exchanger 20, expansion valve 30 and indoor side heat exchanger 40, control air regulator drive constitutes, and drives to heat circulation or kind of refrigeration cycle according to the endless form of refrigerant.
Here, indoor side heat exchanger 40 is arranged on the indoor set 100, and outdoor heat exchanger 20 and compressor 10 are arranged on the off-premises station 200, and expansion valve 30 is arranged on indoor set 100 or the off-premises station 200 selectively according to air regulator.
Particularly, indoor side heat exchanger 40 comprises the refrigerant conduit 42 of the refrigerant that flows, the cooling fin 44 that carries out heat exchange with air effectively and be arranged on the refrigerant conduit 42 constitutes, and the temperature sensor 50,60,70 of measuring refrigerant conduit 42 temperature is set on the refrigerant conduit 42.
Here, arrival end temperature sensor 50 is arranged on refrigerant conduit 42 arrival ends that flow into to indoor side heat exchanger 40, branch end temperature sensor 60 is arranged on the branched pipe (not shown) of branch by the refrigerant of arrival end inflow, and port of export temperature sensor 70 is arranged on the port of export of discharging to indoor side heat exchanger 40.
Particularly indoor set 100 is provided with the inhaled air temperature sensor (not shown) of perception to indoor set 100 inner inhaled air temperature.
Air regulator is provided with judges coolant leakage whether refrigerant leakaging sensing method, compressor 10 damages that take place when stoping coolant leakage and the reduction of refrigerating/heating efficient.
As shown in Figure 3, according to refrigerant leakaging sensing method of the present invention, comprise the 1st stage (S10) of judging process fixed time when driving air regulator, the heat-exchanger temperature sensor 60 that has been provided with from indoor heat converter 40 when having passed through the fixed time after air regulator drives, 70 and be arranged on the 1st temperature measuring stage (S20) that inhaled air temperature sensor on the indoor set receive to be measured temperature, the temperature (Te) of the indoor heat converter that receives from the 1st temperature measuring stage (S20) and suck temperature (Ta) difference of air and control part the 1st comparison phase (S30) that compares of the data that stored.
When the temperature contrast of the 1st comparison phase (S30) is littler than the data that store, stop the compressor stop phase (S40) of compressor 10 in order to confirm refrigerant to leak, the compressor of restarting compressor 10 after fixed time after the compressor of compressor 10 stops is restarted the stage (S50), heat-exchanger temperature sensor 60 from indoor heat converter 40 settings, 70 and be arranged on inhaled air temperature sensor on the indoor set and receive the 2nd temperature measuring stage (S60) of measuring temperature once more, the temperature (Te) of the indoor heat converter that receives from the 2nd temperature measuring stage (S60) and the temperature (Ta) that sucks air differ from and control part the 2nd comparison phase (S70) that compares again of the data that stored.
When the temperature contrast of the 2nd comparison phase (S70) is littler than the data that store, stop the compressor stop phase (S80) of compressor 10 in order to reaffirm refrigerant to leak, the compressor of restarting compressor 10 after fixed time after the compressor of compressor 10 stops is restarted the stage (S90), heat-exchanger temperature sensor 60 from indoor heat converter 40 settings, 70 and be arranged on inhaled air temperature sensor on the indoor set and receive the 3rd temperature measuring stage (S100) of measuring temperature once more, the temperature of the indoor heat converter 40 that receives from the 3rd temperature measuring stage (S100) and suck the temperature difference of air and control part the 3rd comparison phase (S110) that compares again of the data that stored.
The coolant leakage that is judged as coolant leakage when the temperature contrast of the 3rd comparison phase (S110) is littler than the data that store is judged the stage (S120), the cold medium shortage of the display unit demonstration coolant quantity deficiency that coolant leakage judgement stage (S120) is provided with on indoor set 100 is afterwards represented the stage (S130), and cold medium shortage represents that the stage (S130) stops air regulator driven air adjuster driving interrupt phase (S140) afterwards and constitutes.
From the 1st comparison phase (S30) afterwards to stage of the 3rd comparison phase (S110) be for confirm temperature measuring that the 3rd temperature measuring stage (S110) measured get correctness the affirmation stage, also can omit.
But when the coolant quantity that flows into to indoor heat converter 40 during air regulator drives distributed unevenly, the not enough temperature of 40 1 time of indoor heat converter coolant quantity rose, so as once more or to stop air regulator after confirming for three times relatively good.
1st, the temperature difference of 2,3 comparison phase (S30), (S70), (S110) is the temperature difference of indoor heat converter and the suction air that sucks to indoor set 100, and temperature difference is used absolute value and compared with data.
That is, the judgement formula of the 1st, 2,3 comparison phase (S30), (S70), (S110) is | Ta-Te|＜specific data.
In addition, the data that stored in the control part such as Fig. 4 or shown in Figure 5 obtain by the temperature difference chart that fills input according to refrigerant, and chart is the absolute value according to the temperature difference of the branched pipe that fills input indoor heat converter 40 of refrigerant or port of export mensuration.
Moreover, increase the increase that input runs off existing line style of filling of refrigerant in the chart more.
And, the fixed time in the 1st stage is 3 minutes, carry out as moving to the 1st temperature measuring time (S20) afterwards through the fixed time, the refrigerant that is stored on the compressor when air regulator is initially driven disperses to constitute normal actuation cycle to the air regulator integral duct fully.
1st, 2,3 temperature measuring stages (S20), (S60), (S100) are the values of measuring by the heat-exchanger temperature sensor 60,70 that the branched pipe of indoor heat converter 40 or the port of export are provided with.
1st, temperature difference is 5 ℃ among 2,3 comparison phase (S30), (S70), (S110), is the value that obtains by experiment.
The driving time that compressor is restarted the time (S50), (S70) is 3 minutes.
When 1st, temperature difference was bigger than the data that stored among 2,3 comparison phase (S30), (S70), (S110), whether normally the air regulator refrigerant leakaging sensing method confirmed coolant quantity examination phase.
Temperature difference is bigger than data, then means according to the air regulator refrigerant, and the normal temperature that is set the goal of carrying out of refrigerating/heating circulation is so temperature difference is bigger.
That is, the temperature of indoor heat converter in the time of kind of refrigeration cycle (S40) is reduced to the temperature that is set the goal and forms, and the temperature of indoor heat converter when heating circulation (S40) rises to the temperature that is set the goal.
So, the 1st, 2,3 comparison phase (S30), (S70), when temperature difference is bigger than the data that stored (S110), examination phase comprises: from the heat-exchanger temperature sensor 60 of indoor heat converter 40 settings, 70 and be arranged on the 4th temperature measuring stage (S150) that inhaled air temperature sensor on the indoor set receive to be measured temperature, the temperature (Te) of the indoor heat converter that receives from the 4th temperature measuring stage (S150) and the temperature (Ta) that sucks air differ from and control part the 4th comparison phase (S160) that compares again of the data that stored, when the temperature contrast of the 4th comparison phase (S160) is bigger than the data that store, drive the stage (S170) for driving first o'clock of fixed time air regulator, drove the heat-exchanger temperature sensor 60 that the stage (S170) is provided with from indoor heat converter 40 afterwards at first o'clock, 70 and be arranged on inhaled air temperature sensor on the indoor set and receive the 5th temperature measuring stage (S180) of measuring temperature once more, the temperature of the indoor heat converter that receives from the 5th temperature measuring stage (S180) and suck the temperature difference of air and control part the 5th comparison phase (S190) that compares of the data that stored, the coolant quantity that when the temperature contrast of the 5th comparison phase (S190) is bigger than the data that store, is judged as air regulator suitably and the air regulator that drives air regulator drive the stage (S200).
Here, 4th, whether normal 5 temperature measuring stages (S150), (S180) and the 4th, 5 comparison phase (S160), (S190) are the formation temperature processes of confirming indoor heat converter 40 again, drive the stage (S170) is normally and during a specified time to drive air regulator for whether the formation temperature of confirming indoor heat converter 40 shows in the time of part at first o'clock.
In addition, the temperature difference of the 4th, 5 comparison phase (S160), (S190) be transformed to absolute value and and data compare.
And, when the temperature difference of the 4th, 5 comparison phase (S160), (S190) is littler than data, move and carry out compressor stop phase (S40) process afterwards to compressor stop phase (S40).
Fig. 6 is the flow chart of the air regulator refrigerant leakaging sensing method of the 2nd embodiment according to the present invention, and Fig. 7 is according to the chart that in the air regulator of the present invention refrigerant is filled the temperature difference of the intake air temperature of input and indoor heat converter arrival end.
The 2nd embodiment of the present invention and the 1st embodiment are similar, have only (S75) (S115) (S165) judgement formula difference of (S195) of the 1st, 2,3,4,5 comparison phase (S35).
Here, the 2nd embodiment flow chart and chart are that the heat exchanger sensor 50 and the intake air temperature (Ta) that are provided with for the arrival end of indoor heat converter 40 are poor.
Promptly, the data that in the 1st embodiment, obtain by experiment such as Fig. 4 or the increase that line style occurs shown in Figure 5, but the data of temperature (Te) the 2nd embodiment that measures at the arrival end of indoor heat converter 40 as shown in Figure 7, middle field produces rapid increase part, so have the different judgement formula of temperature difference chart that and the branched pipe of the indoor heat converter 40 or port of export is measured, it is little or specific data 2 is big that the judgement of the 2nd embodiment is that temperature (Ta) the difference ratio only judging the temperature (Te) that the arrival end of indoor heat converter 40 is measured and suck air has been stored in specific data 1 on the control part.
And the judgement formula compares with absolute value and data, has | Ta-Te|＜specific data 1 or | the formula of Ta-Te|＞specific data 2.
Below, the cognitive method of the 2nd embodiment has the order same with the 1st embodiment.
In addition, obtain different separately data according to the load of air regulator in the chart shown in Fig. 4,5,7, and with ■＞●＞▲ the order load increase.That is, the load along with the air conditioning amount increases temperature difference (Δ T) minimizing.
Claims (14)
1, a kind of refrigerant leakaging sensing method of air regulator is characterized in that: comprise the 1st stage of judging process fixed time when driving air regulator; Heat-exchanger temperature sensor that has been provided with from indoor heat converter when having passed through the fixed time after air regulator drives and the inhaled air temperature sensor that is arranged on the indoor set receive the temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the temperature measuring stage and suck temperature (Ta) difference of air and control part the comparison phase that compares of the data of oneself storage; When the temperature difference of comparison phase is littler than the data that stored, be judged as the coolant leakage that refrigerant leaked and judge the stage.
2, the refrigerant leakaging sensing method of air regulator according to claim 1, it is characterized in that: the refrigerant leakaging sensing method of air regulator comprises that also coolant leakage judges after the stage that the cold medium shortage of expression coolant quantity deficiency is represented the stage on the display unit that is provided with on the indoor set; Cold medium shortage is represented to stop air regulator driven air adjuster driving interrupt phase after the stage.
3, the refrigerant leakaging sensing method of air regulator according to claim 1 is characterized in that: the refrigerant leakaging sensing method of air regulator comprises that also comparison phase reaffirms the affirmation stage of the temperature correctness of mensuration later on; Stop the compressor stop phase of compressor when the temperature contrast that the stage of recognition is included in the 1st comparison phase is littler than the data that store in order to confirm refrigerant to leak; The compressor of restarting compressor after fixed time after the compressor of compressor stops is restarted the stage; Heat-exchanger temperature sensor that is provided with from indoor heat converter and the inhaled air temperature sensor that is arranged on the indoor set receive the 2nd temperature measuring stage of measuring temperature once more; The temperature (Te) of the indoor heat converter that receives from the 2nd temperature measuring stage and the temperature (Ta) that sucks air differ from and control part the 2nd comparison phase (S70) that compares again of the data that stored.
4, the refrigerant leakaging sensing method of air regulator according to claim 3 is characterized in that: carry out the stage of recognition plural number.
5, the refrigerant leakaging sensing method of air regulator according to claim 1 is characterized in that: when temperature difference is bigger than the data that stored in the comparison phase, reaffirm the examination phase that whether suitable the air regulator coolant quantity is; Examination phase comprises the heat-exchanger temperature sensor that is provided with from indoor heat converter and the inhaled air temperature sensor that is arranged on the indoor set receives the 4th temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the 4th temperature measuring stage and the temperature (Ta) that sucks air differ from and control part the 4th comparison phase that compares of the data that stored.
6, the refrigerant leakaging sensing method of air regulator according to claim 5, it is characterized in that: the refrigerant leakaging sensing method of air regulator also is included in when temperature difference is bigger than data in the 4th comparison phase, be judged as in the air regulator coolant quantity suitably and the air regulator that drives air regulator drive the stage.
7, the refrigerant leakaging sensing method of air regulator according to claim 5 is characterized in that: carry out plural number time examination phase.
8, according to the refrigerant leakaging sensing method of each described air regulator in the claim 1 to 7, it is characterized in that: the mensuration temperature of heat-exchanger temperature sensor is the temperature in the branched pipe of indoor heat converter or port of export mensuration.
9, according to the refrigerant leakaging sensing method of each described air regulator in the claim 1 to 7, it is characterized in that: the judgement formula of comparison phase is to be transformed to absolute value to calculate, and the judgement formula is " | Ta-Te|＜specific data ".
10, a kind of refrigerant leakaging sensing method of air regulator is characterized in that: comprise the 1st stage of judging process fixed time when driving air regulator; Heat-exchanger temperature sensor that has been provided with from indoor heat converter when having passed through the fixed time after air regulator drives and the inhaled air temperature sensor that is arranged on the indoor set receive the temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the temperature measuring stage and suck the temperature (Ta) poor (Δ T) of air and control part oneself data of storing relatively, and the specific data 1 of the own storage of C.T poor (Δ T) ratio is little or the comparison phase bigger than specific data 2; Littler or be judged as the coolant leakage that refrigerant leaked than specific data 2 in big and judge the stage in the temperature difference of comparison phase than the specific data that stored 1.
11, the refrigerant leakaging sensing method of air regulator according to claim 10 is characterized in that: the refrigerant leakaging sensing method of air regulator comprises the affirmation stage of reaffirming the temperature correctness of mensuration after the comparison phase; The stage of recognition comprises the compressor stop phase that stops compressor; The compressor of restarting compressor after fixed time after the compressor of compressor stops is restarted the stage; Heat-exchanger temperature sensor that is provided with from indoor heat converter and the inhaled air temperature sensor that is arranged on the indoor set receive the 2nd temperature measuring stage of measuring temperature once more; The temperature (Te) of the indoor heat converter that receives from the 2nd temperature measuring stage and the temperature (Ta) that sucks air differ from and control part the 2nd comparison phase (S70) that compares again of the data that stored.
12, the refrigerant leakaging sensing method of air regulator according to claim 10 is characterized in that: when temperature difference is bigger than the data that stored in the comparison phase, reaffirm the examination phase that whether suitable the air regulator coolant quantity is; Examination phase comprises the heat-exchanger temperature sensor that is provided with from indoor heat converter and the inhaled air temperature sensor that is arranged on the indoor set receives the 4th temperature measuring stage of measuring temperature; The temperature (Te) of the indoor heat converter that receives from the 4th temperature measuring stage and the temperature (Ta) that sucks air differ from and control part the 4th comparison phase that compares again of the data that stored.
13, according to the refrigerant leakaging sensing method of each described air regulator in the claim 10 to 12, it is characterized in that: the mensuration temperature of heat-exchanger temperature sensor is the temperature of measuring at the arrival end of indoor heat converter.
14, according to the refrigerant leakaging sensing method of each described air regulator in the claim 10 to 12, it is characterized in that: the judgement formula of comparison phase is to be transformed to absolute value to calculate, and the judgement formula is " | Ta-Te|＜specific data 1 or | Ta-Te|＞specific data 2 ".
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| CN102147142A (en) * | 2010-02-08 | 2011-08-10 | Lg电子株式会社 | Air conditioner and method for controlling air conditioner |
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| CN107289599A (en) * | 2017-08-10 | 2017-10-24 | 四川长虹电器股份有限公司 | A kind of apparatus and method for detecting air conditioner coolant amount of leakage |
| CN107289599B (en) * | 2017-08-10 | 2020-03-17 | 四川长虹电器股份有限公司 | Device and method for detecting leakage amount of air conditioner refrigerant |
| CN108397876A (en) * | 2018-02-27 | 2018-08-14 | 珠海格力电器股份有限公司 | The detection method and device of air conditioner coolant state |
| CN110160208A (en) * | 2019-05-27 | 2019-08-23 | 广东美的制冷设备有限公司 | Air conditioner and the secondary refrigerant leakage detection method of air conditioner, device |
| CN111457549A (en) * | 2020-04-09 | 2020-07-28 | 海信（广东）空调有限公司 | Control method of air conditioner |
| CN116045450A (en) * | 2022-12-22 | 2023-05-02 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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