CN103807982A - Air conditioner - Google Patents
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- CN103807982A CN103807982A CN201210442944.5A CN201210442944A CN103807982A CN 103807982 A CN103807982 A CN 103807982A CN 201210442944 A CN201210442944 A CN 201210442944A CN 103807982 A CN103807982 A CN 103807982A
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- 238000001514 detection method Methods 0.000 claims abstract description 52
- 230000001012 protector Effects 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 25
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention provides an air conditioner, which comprises an evaporator (3), a compressor (4), a condenser (9) and a throttling device (11), and further comprises: the detection device (13) is connected with the compressor (4) and is used for detecting the working state of the compressor (4) and transmitting a detection signal to the controller (14); and the controller (14) is connected with the detection device (13) and the compressor (4) and is used for controlling the operation of the compressor (4) according to the detection signal. The invention solves the problems that the cost of the compressor is too high and the compressor is easy to cause fire, and has the effects of reducing the cost of the compressor and avoiding the fire caused by an external overload protector.
Description
Technical field
The present invention relates to Refrigeration & Air-Conditioning field, in particular to a kind of air-conditioner.
Background technology
Moving machine in the market or the compressor of dehumidifier all need to arrange built-in overload protective device or external overload protective device; its principle is by the acting in conjunction of electric current and temperature; when in the time that electric current reaches certain certain value, delivery temperature exceedes another definite value, overload disconnects; control compressor is out of service; the safety problem of avoiding the excessive or excess Temperature of electric current and bring, it belongs to mechanical type control mode.But the existence of overload causes the cost of air-conditioner to increase, in addition, external overload need to have a plastic cover and compression cover, and compressor top excess Temperature in the time that overload protective device is abnormal, will cause that compressor is covered with fire, exists fire safety hidden danger.
Excessive and easily cause the problem of fire for the compressor cost in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
The invention provides a kind of air-conditioner, at least to address the above problem.
According to an aspect of the present invention, a kind of air-conditioner is provided, has comprised: evaporimeter, compressor, condenser, throttling arrangement, also comprised: the checkout gear being connected with compressor, for detection of the duty of described compressor, and detection signal is transferred to controller; Connect the controller of described checkout gear and compressor, for according to the running of compressor described in described detection signal control.
Preferably, described checkout gear comprise following one of at least: temperature-detecting device, for detection of the delivery temperature of compressor, and transfers to described controller by temperature detection signal; Current sensing means, for detection of the electric current of described compressor, and transfers to described controller by current detection signal.
Preferably, described controller comprises display board and mainboard, wherein: described display board connects described temperature-detecting device and/or current sensing means, the current detection signal detecting for receiving temperature detection signal that described temperature-detecting device detects and/or described current sensing means, and transfer to described mainboard; Described mainboard connects described display board and described compressor, for the running of compressor described in the temperature detection signal that transfers to according to described display board and/or current detection signal control.
Preferably, described display board also comprise following one of at least: exhaust protection control logic circuit, the in the situation that of recovering threshold values for be less than or equal to temperature in described delivery temperature, controlling described mainboard powers to described compressor, in the situation that described delivery temperature is greater than described temperature protection threshold values, control described mainboard and disconnect the supply current of described compressor;
Preferably, overcurrent protection control logic circuit, exceedes current protection threshold values for the electric current detecting at described current sensing means, controls mainboard and disconnects the supply current to described compressor.
Preferably, described temperature protection threshold values and described temperature are recovered threshold values according to one of at least arranging below: delivery temperature, motor heatproof temperature, the withstand voltage pressure of described compressor regulation.
Preferably, described current protection threshold values is set to the overload current protection value lower than described compressor, and is 1.25 ~ 1.4 times of described air-conditioner rated current.
Preferably, described display board also comprises: self-checking circuit, for under described compressor halted state, cycle detection continuous time is greater than 0.5A to air-conditioner electric current in the situation that, or the in the situation that under compressor behavior, cycle detection continuous time being less than 0.2A to air-conditioner electric current, the display floater of notice display board control air-conditioner shows relay adhesion fault code, and carries out sound and light alarm.
Preferably, described display board also comprises: jumper cap, and for distinguishing current protection threshold values and the temperature protection threshold values of air-conditioner of different type of machines.
Preferably, described air-conditioner is dehumidifier or moving machine or window machine.
Preferably; also comprise: overload protective device; exceed for exceed current protection threshold values and/or delivery temperature at the electric current of described compressor the electrical connection that supplies that disconnects described compressor temperature protection threshold values, wherein, described overload protective device is external overload protective device or internal overload protector.
By embodiments of the invention, air-conditioner comprises evaporimeter, compressor, condenser, throttling arrangement, also comprises: the checkout gear being connected with compressor, for detection of the duty of compressor, and transfers to controller by detection signal; Connect the controller of checkout gear and compressor; be used for according to the running of detection signal control compressor; solve compressor cost excessive and easily cause the problem of fire, and then reached the effect that reduces compressor cost, avoids causing because of external overload protective device fire.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the structured flowchart of the air-conditioner of the embodiment of the present invention;
Fig. 2 is according to the structural representation of the air-conditioner of the embodiment of the present invention.
The specific embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Embodiment mono-
The embodiment of the present invention provides a kind of air-conditioner, and Fig. 1 is according to the structured flowchart of the air-conditioner of the embodiment of the present invention, and the air-conditioner of mentioning in following examples can be dehumidifier or moving machine or the refrigerating plant with structure shown in Fig. 1.As shown in Figure 1, this air-conditioner comprises evaporimeter 3, compressor 4, condenser 9, throttling arrangement 11, checkout gear 13, controller 14.
The checkout gear 13 being connected with compressor 4, for detection of the duty of compressor 4, and transfers to controller 14 by detection signal;
Connect the controller 14 of checkout gear 13 and compressor 4, for according to the running of this detection signal control compressor 4.
By said apparatus is set; having changed air-conditioner in correlation technique all needs to arrange the way of overload protective device; and then owing to having omitted overload protective device and reduced the cost of air-conditioner, meanwhile, also avoided because external overload protective device may initiation fire possibility.
Can recover threshold values according to different parameter set temperature protection threshold values and temperature.Preferably, temperature protection threshold values and temperature are recovered threshold values and are at least arranged according to one of following: delivery temperature, motor heatproof temperature, withstand voltage pressure that compressor 4 stipulates.According to above one of at least parameter carry out set temperature protection threshold values and temperature is recovered threshold values, what can make that temperature protection threshold values and temperature recover that threshold values arranges is more reasonable, and then controls more accurately the running status of compressor 4.
The set-up mode of current protection threshold values also can have a variety of, preferably, can be set to the overload current protection value lower than compressor 4, and is 1.25 ~ 1.4 times of air-conditioner rated current.
Preferably, display board 12 can also comprise jumper cap 1, for distinguishing current protection threshold values and the temperature protection threshold values of air-conditioner of different type of machines.The current protection threshold values of the air-conditioner of different type of machines is different with temperature protection threshold values; can distinguish current protection threshold values and the temperature protection threshold values of the air-conditioner of different type of machines by jumper cap 1; thereby make the setting of current protection threshold values and temperature protection threshold values without arranging respectively for different type of machines; and can unify to arrange; distinguished by jumper cap 1, thereby make to control more automatic.
The kind of air-conditioner can have a variety of, preferably, can be dehumidifier, moving machine or window machine.
There is the air-conditioner of said structure, can comprise that overload protective device also can not comprise overload protective device.Overload protective device; exceed the internal circuit that disconnects compressor 4 temperature protection threshold values to disconnect for electrical connection for exceed current protection threshold values and/or delivery temperature at the electric current of compressor 4; wherein, overload protective device is external overload protective device or internal overload protector.By overload protective device is set, can play the effect of duplicate protection.
Embodiment bis-
The embodiment of the present invention provides a kind of air-conditioner.The embodiment of the present invention detects the electric current of compressor by current sensing means and detects the delivery temperature of compressor exhaust pipe by temperature-detecting device; the delivery temperature that exceedes current protection threshold values and/or detection when the electric current detecting exceedes temperature protection threshold values, stops compressor operating and reports to the police.The embodiment of the present invention belongs to electronic type control mode; certainly when adopting this electronic type control mode, also can continue to retain mechanical type control modes such as adopting built-in overload protective device or external overload protective device, also can cancel the mechanical type control modes such as built-in overload protective device or external overload protective device.
Fig. 2 is according to the structural representation of the air-conditioner of the embodiment of the present invention, as shown in Figure 2, this air-conditioner comprises line 2 between jumper cap 1, plate, evaporimeter 3, compressor 4, complete machine power line 5, current sensing means 6, mainboard 7, compressor power line 8, condenser 9, throttling arrangement 11, display board 12.Wherein, jumper cap 1 is arranged on display board 12, between plate, line 2 connects mainboard 7 and display board 12, evaporimeter 3 is connected by throttling arrangement 11 with condenser 9, compressor 4 is connected with temperature-detecting device 10, evaporimeter 3 and mainboard 7, complete machine power line 5 is connected with mainboard 7, and temperature-detecting device 10 is connected with display board 12, compressor 4 respectively.Wherein, display board 12 can also comprise exhaust protection control logic circuit and/or overcurrent protection control logic circuit and/or self-checking circuit.
Jumper cap 1 is that current protection threshold values and different exhaust protection temperature definite value are temperature protection threshold values for distinguishing the different current protection definite values of different type of machines.
Temperature-detecting device 10 can be temperature sensor; for temperature signal is transferred to display board 12; display board 12 judges whether the temperature that this temperature signal is corresponding needs protection; specifically; the temperature that relatively this temperature signal is corresponding and temperature protection threshold values; judge according to comparative result whether this temperature needs protection and generate temperature control signals, then temperature control signals is passed to mainboard 7, mainboard 7 is by the start-stop of this temperature control signals control compressor 4 and blower fan.
Current sensing means 6 can be transformer, and it is arranged in compressor power line 8, for detection of the electric current of compressor 4, and current signal is passed to display board 12 by mainboard 7.Display board 12 electric current that relatively this current signal is corresponding and current protection threshold values; judge according to comparative result whether this electric current needs protection and generate current controling signal; then passed to mainboard 7, mainboard 7 is controlled the start-stop of compressor 4 and blower fan by the current controling signal receiving.
Mainboard 7 is mainly used in providing power supply, receives the control signal control compressor 4 of display board 12 and the working order of blower fan.
Specifically, the specific works flow process of this air-conditioner is as follows; Temperature-sensitive bag is set on air-conditioner blast pipe, perception blast pipe delivery temperature.Set temperature protection threshold values, to limit excessive discharge temperature.In the time that delivery temperature exceedes temperature protection threshold values, notice mainboard 7.Meanwhile, current protection threshold values is set, prevents that electric current is too high.Mainboard 7 is controlled the effect that these two parameters replace overload protective device simultaneously.Such as, by temperature protection threshold value setting T ℃, it is t ℃ that delivery temperature temperature when compressor 4 resumes operation is recovered threshold value setting, these two values are to arrange according to the delivery temperature in compressor 4 specifications, motor heatproof temperature, withstand voltage pressure.Current protection threshold values is set to 1.25 ~ 1.4 times of rated current, and conventionally, generally current protection threshold values can be more lower slightly than compressor 4 overload current protection values.
In delivery temperature, during higher than temperature protection threshold values, exhaust protection control logic circuit notice mainboard 7 disconnects the supply current of compressor 4, and in the time that delivery temperature is recovered threshold values lower than temperature, notice mainboard 7 provides supply current to compressor 4.Overcurrent protection control logic circuit is at the electric current of compressor 4 during higher than current protection threshold values, and notice mainboard 7 disconnects the supply current of compressor 4, and at this electric current, during lower than current protection threshold values, notice mainboard 7 is powered to compressor 4.Mainboard 7 considers the message that exhaust protects control logic circuit and overcurrent protection control logic circuit to report, and whether carry out decision-making provides electric current by compressor power line 8 to compressor 4.
Embodiment tri-
The air-conditioner of the embodiment of the present invention is take dehumidifier or moving machine or window machine as example, and this dehumidifier or moving machine or window facility have delivery temperature protection and the overcurrent protection parallel control structure of the integral air conditioner of similar Fig. 2 structure.
The embodiment of the present invention, take certain model compressor as example, supposes that the delivery temperature value stipulating in compressor specifications is no more than 115 ℃, 130 ℃ of motor heatproof temperature, withstand voltage pressure 4.305Mp.
Workflow is as follows particularly:
The temperature-sensitive bag of temperature-detecting device 10 is fixed on the blast pipe of dehumidifier or moving machine, and the other end is inserted in pedestal corresponding on display board 12, and wherein, the major function of display board 12 and mainboard 7 is to control the operation of air-conditioner.Delivery temperature protection value temperature protection threshold values during by overtemperature protection is decided to be T ℃, and when compressor 4 resumes operation, delivery temperature temperature recovery threshold values is decided to be t ℃.
Concrete temperature protection threshold values and temperature are set and recover threshold values.Exhaust protection value is set is temperature protection threshold values T and the compressor 4 delivery temperature value of resuming operation is that the principle that temperature is recovered threshold values t is: one, temperature protection threshold values is no more than the setting in compressor 4 specifications; Two, when exhaust is protected, compressor 4 winding temperatures can not exceed the temperature value of compressor 4 specifications; Three, compressor 4 is from least 3 minutes time of the protection of exhaust next time of resuming operation; Four, when exhaust is protected, compressor 4 pressure can not exceed the withstand voltage force value of compressor 4.According to this principle, it is that temperature protection threshold values is specifically set to T=115 ℃ that exhaust is protected to temperature value, and delivery temperature temperature when compressor 4 resumes operation is recovered threshold values and is set to t=85 ℃.
Delivery temperature control mode is as follows: after compressor 4 starts, exhaust protection control logic circuit detects that delivery temperature is less than 250 higher than T ℃ and AD sampled value for continuous 30 seconds, reaches and sets damp condition and shut down by indoor environment humidity.Compressor 4 stopped foot after 3 minutes, if delivery temperature is less than t ℃, complete machine resumes operation.
The live wire of compressor 4 is that compressor complete machine power line 8 is connected with mainboard 7 through after current sensing means 6, and wherein, mainboard 7 major functions are to provide power supply.Detect the size of current value by current sensing means 6, because the current value of different type of machines is different, so can go out a point different type by jumper cap 1.Jumper cap 1 is inserted on the pedestal of display board 12 correspondences, and current protection threshold values is set to 1.25 ~ 1.4 times of rated current.
Suppose that in compressor specifications, overload action UT value is 10.1-13.6A/100 ℃.
The principle of setting current protection threshold values is: one, current protection threshold values is less than or equals 1.25 ~ 1.4 times of current value under declared working condition; Two, current protection threshold values be less than or equal current value in compressor specifications and pressure be no more than 4.1MPa be compressor withstand voltage 95%.According to this principle, the protective current of dehumidifier is set to 9 amperes, and prerequisite is that the rated current that supposition records this machine is 6.66 amperes.
The control mode of overcurrent protection is as follows: when compressor 4 moves; if the continuous electric current that air-conditioner detected for 3 seconds of overcurrent protection control logic circuit exceedes current protection threshold values; wherein; this current protection threshold values can be selected the numerical value between 1 to 12 ampere, reaches and sets humidity or temperature conditions shutdown by indoor environment humidity.Compressor 4 stopped foot after 3 minutes, automatically recovered former running status.
This air-conditioner also comprises self-checking circuit and the function of opening blower fan.Self-checking circuit is mainly whether check circuit exists the faults such as open circuit, short circuit, the in the situation that under compressor 4 halted states, cycle detection continuous time being greater than 0.5A to electric current, or the in the situation that under compressor behavior, cycle detection continuous time being less than 0.2A to electric current, the display floater that notice display board 12 is controlled air-conditioner shows relay adhesion fault, and carries out sound and light alarm.In addition, self-checking circuit is also used for checking jumper cap 1 fault, and whether jumper cap 1 connects.Meanwhile, self-checking circuit can also, detecting that current value is abnormal low or extremely high, protect air-conditioner also to report to the police, show failure code and notify mainboard 7, and now mainboard 7 can not return to original running status, need after shutdown, then start is resumed operation.
From above description; can find out, the present invention has realized following technique effect: reduce compressor cost, can avoid external overload in addition and the safety problems such as the fire that brings; simultaneously this patent can reach protection air-conditioner excessive discharge temperature, the too high and safety problem brought of electric current.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an air-conditioner, comprises evaporimeter (3), compressor (4), condenser (9), throttling arrangement (11), it is characterized in that, also comprises:
The checkout gear (13) being connected with compressor (4), for detection of the duty of described compressor (4), and transfers to controller (14) by detection signal;
Connect the controller (14) of described checkout gear (13) and compressor (4), for according to the running of compressor (4) described in described detection signal control.
2. air-conditioner according to claim 1, is characterized in that, described checkout gear (13) comprise following one of at least:
Temperature-detecting device (10), for detection of the delivery temperature of compressor (4), and transfers to described controller (14) by temperature detection signal;
Current sensing means (6), for detection of the electric current of described compressor (4), and transfers to described controller (14) by current detection signal.
3. air-conditioner according to claim 2, is characterized in that, described controller (14) comprises display board (12) and mainboard (7), wherein:
Described display board (12) connects described temperature-detecting device (10) and/or current sensing means (6), be used for receiving the current detection signal that temperature detection signal that described temperature-detecting device (10) detects and/or described current sensing means (6) detect, and transfer to described mainboard (7);
Described mainboard (7) connects described display board (12) and described compressor (4), for the running of compressor (4) described in the temperature detection signal that transfers to according to described display board (12) and/or current detection signal control.
4. air-conditioner according to claim 3, is characterized in that, described display board (12) also comprise following one of at least:
Exhaust protection control logic circuit, the in the situation that of recovering threshold values for be less than or equal to temperature in described delivery temperature, controlling described mainboard (7) powers to described compressor (4), in the situation that described delivery temperature is greater than described temperature protection threshold values, control described mainboard (7) and disconnect the supply current of described compressor (4);
Overcurrent protection control logic circuit, exceedes current protection threshold values for the electric current detecting at described current sensing means (6), controls mainboard (7) and disconnects the supply current to described compressor (4).
5. air-conditioner according to claim 4, is characterized in that, described temperature protection threshold values and described temperature are recovered threshold values according to one of at least arranging below: delivery temperature, motor heatproof temperature, the withstand voltage pressure of described compressor (4) regulation.
6. air-conditioner according to claim 4, is characterized in that, described current protection threshold values is set to the overload current protection value lower than described compressor (4), and is 1.25 ~ 1.4 times of described air-conditioner rated current.
7. air-conditioner according to claim 4, it is characterized in that, described display board (12) also comprises: self-checking circuit, for under described compressor (4) halted state, cycle detection continuous time is greater than 0.5A to air-conditioner electric current in the situation that, or the in the situation that under compressor behavior, cycle detection continuous time being less than 0.2A to air-conditioner electric current, the display floater that notice display board (12) is controlled air-conditioner shows relay adhesion fault code, and carries out sound and light alarm.
8. air-conditioner according to claim 7, is characterized in that, described display board (12) also comprises:
Jumper cap (1), for distinguishing current protection threshold values and the temperature protection threshold values of air-conditioner of different type of machines.
9. according to the air-conditioner described in any one in claim 1 to 8, it is characterized in that, described air-conditioner is dehumidifier or moving machine or window machine.
10. according to the air-conditioner described in any one in claim 1 to 8, it is characterized in that, also comprise:
Overload protective device; exceed for exceed current protection threshold values and/or delivery temperature at the electric current of described compressor (4) electrical connection that supplies that disconnects described compressor (4) temperature protection threshold values; wherein, described overload protective device is external overload protective device or internal overload protector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210442944.5A CN103807982B (en) | 2012-11-07 | 2012-11-07 | air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210442944.5A CN103807982B (en) | 2012-11-07 | 2012-11-07 | air conditioner |
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| CN103807982A true CN103807982A (en) | 2014-05-21 |
| CN103807982B CN103807982B (en) | 2017-03-15 |
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| CN201210442944.5A Expired - Fee Related CN103807982B (en) | 2012-11-07 | 2012-11-07 | air conditioner |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104879880A (en) * | 2015-04-23 | 2015-09-02 | 江苏新科中央空调有限公司 | Healthy air conditioner detection system |
| CN105137251A (en) * | 2015-10-09 | 2015-12-09 | 珠海格力电器股份有限公司 | Air conditioner and fault detection method, device and system thereof |
| CN105333659A (en) * | 2014-08-15 | 2016-02-17 | Tcl空调器(中山)有限公司 | Protection and control method for compressor of dehumidifier and dehumidifier |
| CN105332902A (en) * | 2015-12-01 | 2016-02-17 | 珠海格力电器股份有限公司 | Compressor relay adhesion protection method and device and air conditioner |
| CN106288236A (en) * | 2016-09-30 | 2017-01-04 | Tcl空调器(中山)有限公司 | Air-conditioner compress control method and air-conditioner |
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| CN110779161A (en) * | 2019-11-18 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
| CN111076349A (en) * | 2019-12-24 | 2020-04-28 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and air conditioner |
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| CN109297134B (en) * | 2018-08-29 | 2020-06-30 | 珠海格力电器股份有限公司 | Overload protection method and device for air conditioner, storage medium and air conditioner |
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| CN111076349B (en) * | 2019-12-24 | 2021-01-26 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and air conditioner |
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