CN104949269A - System control method and device for overhigh module temperature - Google Patents
System control method and device for overhigh module temperature Download PDFInfo
- Publication number
- CN104949269A CN104949269A CN201510313875.1A CN201510313875A CN104949269A CN 104949269 A CN104949269 A CN 104949269A CN 201510313875 A CN201510313875 A CN 201510313875A CN 104949269 A CN104949269 A CN 104949269A
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- Prior art keywords
- module temperature
- expansion valve
- frequency
- electronic expansion
- compressor
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Classifications
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention relates to a system control method and device for overhigh module temperature. The system control method includes the following steps that 1, after an air conditioner is started, the temperature value Tf of a frequency conversion module and the exhaust superheat degree Tdsh of a compressor are detected; 2, the detected temperature value Tf of the frequency conversion module is compared with a set high temperature threshold value Ta and a set low temperature threshold value Tb, and the exhaust superheat degree Tdsh of the compressor is compared with a third set threshold value Tc to control the open degree of an indoor unit electronic expansion valve and on-off of an air-conditioning system. As the temperature value Tf of the frequency conversion module and the exhaust superheat degree Tdsh of the compressor are compared with the set threshold values, whether the frequency conversion module is in a superheat state or not is judged, whether to control the open degree of the indoor unit electronic expansion valve to reduce high pressure or not is judged according to the comparison conditions, power of the compressor is reduced, the temperature value of the frequency conversion module is reduced, and the operation reliability of the frequency conversion module and a multi-split system can be improved.
Description
Technical field
The present invention relates to air conditioner technical field, particularly relate to the too high system control method of a kind of module temperature and device.
Background technology
Frequency-variable air-conditioner is commonly used in daily life.Convertible frequency air-conditioner topmost difference compared with conventional domestic air conditioning is the increase in frequency converter module, and the price of frequency converter module is higher, admittedly protection frequency converter module just seems particularly important in convertible frequency air-conditioner.But in prior art, frequency converter module is when heavy-duty service, and the temperature of frequency converter module is higher, frequency converter module long-time at high operating temperatures time, circuit and the easy premature aging of components and parts, cause power consumption higher, the service life of frequency converter is short.
Summary of the invention
Technical problem to be solved by this invention is to provide can be monitored the operating temperature of frequency converter module, avoids frequency converter operating temperature high and affects the too high system control method of the module temperature of the use of frequency converter module and device.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: the system control method that a kind of module temperature is too high, comprises the following steps:
Step one, after air-conditioning start, detects the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor;
Step 2, the frequency-variable module temperature value Tf value detected and the high temperature threshold values Ta of setting and the low temperature threshold values Tb of setting are contrasted, and the 3rd threshold values Tc of the discharge superheat Tdsh of compressor and setting is carried out contrasting to control the interior aperture of organic electronic expansion valve and the opening and closing of air-conditioning system.
The beneficial effect of the inventive method is: by the discharge superheat of the frequency-variable module detected temperature and compressor and the threshold values of setting being contrasted, judge whether frequency-variable module is in high Warm status, and judge whether realize reducing high pressure by the aperture controlling interior organic electronic expansion valve according to contrast situation, reduce compressor horsepower, thus reduce frequency-variable module temperature value, avoid frequency converter module and be in the condition of high temperature for a long time and the service life of the shortening frequency converter module caused, can ensure that frequency converter module is run under safe temperature value, ensure that system cloud gray model is reliable simultaneously, frequency converter module and multiple on-line system operational reliability can be improved.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the sense cycle detecting the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor is setting-up time m, and setting-up time m confirms according to real work, and setting-up time m can for any value being more than or equal to 1 second.
The beneficial effect of above-mentioned further scheme is adopted to be: to set sense cycle according to actual needs, frequency converter module can be avoided to be in hot operation state on the one hand, another aspect can prevent the whole testing fixture moment from keeping inspection state on the consumption of energy and the impact on checkout gear service life.
Further, in described step 2, as Tf >=Ta, and during Tdsh >=Tc, the aperture of organic electronic expansion valve in increasing.
The beneficial effect of above-mentioned further scheme is adopted to be: as Tf >=Ta, and during Tdsh >=Tc, illustrate that frequency converter module and whole air-conditioning equipment device are all in high power using state, by increasing the aperture of interior organic electronic expansion valve, realize lowering high pressure, reduce compressor horsepower, thus reduce the temperature of frequency converter module.
Further, in described step 2, as Tf >=Ta, and during Tdsh < Tc, reduce the aperture of interior organic electronic expansion valve or keep the aperture of interior organic electronic expansion valve constant.
Further, in described step 2, as Tf >=Ta, and during Tdsh < Tc, reduce the aperture of interior organic electronic expansion valve or keep the aperture of interior organic electronic expansion valve constant, and starting timing, after the cumulative time keeping Tf >=Ta to run reaches setting-up time n, prompting frequency-variable module temperature is too high, and shutdown system.
The beneficial effect of above-mentioned further scheme is adopted to be: as Tf >=Ta, and during Tdsh < Tc, illustrate that frequency converter module temperature is too high and compressor is in normal operating conditions, shutdown system after the cumulative time that Tf >=Ta runs reaches setting-up time n, guarantees that frequency converter module is unlikely to damage.
Further, in described step 2, as Ta > Tf > Tb, increase the aperture of interior organic electronic expansion valve or keep the aperture of interior organic electronic expansion valve constant.
Further, in described step 2, as Tf≤Tb, assert that Tf is normal, the aperture of interior organic electronic expansion valve freely controls.
Adopt the beneficial effect of above-mentioned further scheme to be: as Tf≤Tb, illustrate that Tf is normal, interior organic electronic expansion valve arbitrarily can regulate aperture according to the needs of system.
The too high control system of a kind of module temperature, comprise the frequency-variable module temperature sensor for detecting frequency-variable module temperature value, for detecting compressor exhaust temperature sensor and the controller of the discharge superheat of compressor, described controller respectively with described frequency-variable module temperature sensor, described compressor exhaust temperature sensor circuit connects, described controller receives the frequency-variable module temperature value signal that described frequency-variable module temperature sensor detects, described controller receives the discharge superheat signal of the compressor that described compressor exhaust temperature sensor detects, described controller is connected with the interior organic electronic expansion valve circuit of described air-conditioning system, described controller carries out contrasting according to the threshold values of frequency-variable module temperature value and setting and controls the aperture of organic electronic expansion valve in described air-conditioning system according to the discharge superheat of compressor and the contrast of setting threshold values and control the opening and closing of described air-conditioning system.
The beneficial effect of apparatus of the present invention is: controller is by contrasting the frequency-variable module temperature detected and the discharge superheat of compressor and the threshold values of setting, judge whether frequency-variable module is in high Warm status, and judge whether realize reducing high pressure by the aperture controlling interior organic electronic expansion valve according to contrast situation, reduce compressor horsepower, thus reduce frequency-variable module temperature value, avoid frequency converter module and be in the condition of high temperature for a long time and the service life of the shortening frequency converter module caused, can ensure that frequency converter module is run under safe temperature value, ensure that system cloud gray model is reliable simultaneously, frequency converter module and multiple on-line system operational reliability can be improved.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the inventive method;
Fig. 2 is the structural representation of apparatus of the present invention;
In accompanying drawing, the list of parts representated by each label is as follows:
1, frequency-variable module temperature sensor, 2, compressor exhaust temperature sensor, 3, controller, 4, interior organic electronic expansion valve.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, the system control method that module temperature of the present invention is too high, comprises the following steps:
After air-conditioning start, detect the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor, the sense cycle detecting the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor is setting-up time m;
The frequency-variable module temperature value Tf value detected and the high temperature threshold values Ta of setting and the low temperature threshold values Tb of setting are contrasted, and the 3rd threshold values Tc of the discharge superheat Tdsh of compressor and setting is carried out contrasting to control the interior aperture of organic electronic expansion valve 4 and the opening and closing of air-conditioning system, as Tf >=Ta, and during Tdsh >=Tc, the aperture of organic electronic expansion valve 4 in increasing; As Tf >=Ta, and during Tdsh < Tc, reduce the aperture of interior organic electronic expansion valve 4 or keep the aperture of interior organic electronic expansion valve 4 constant, and start timing, after the cumulative time keeping Tf >=Ta to run reaches setting-up time n, prompting frequency-variable module temperature is too high, and shutdown system.As Ta > Tf > Tb, increase the aperture of interior organic electronic expansion valve 4 or keep the aperture of interior organic electronic expansion valve 4 constant.As Tf≤Tb, assert that Tf is normal, the aperture of interior organic electronic expansion valve 4 freely controls.
The beneficial effect of the inventive method is: by the discharge superheat of the frequency-variable module detected temperature and compressor and the threshold values of setting being contrasted, judge whether frequency-variable module is in high Warm status, and judge whether realize reducing high pressure by the aperture controlling interior organic electronic expansion valve 4 according to contrast situation, reduce compressor horsepower, thus reduce frequency-variable module temperature value, avoid frequency converter module and be in the condition of high temperature for a long time and the service life of the shortening frequency converter module caused, can ensure that frequency converter module is run under safe temperature value, ensure that system cloud gray model is reliable simultaneously, frequency converter module and multiple on-line system operational reliability can be improved.Set sense cycle according to actual needs, frequency converter module can be avoided to be in hot operation state on the one hand, another aspect can prevent the whole testing fixture moment from keeping inspection state on the consumption of energy and the impact on checkout gear service life.
As Tf >=Ta, and during Tdsh >=Tc, illustrate that frequency converter module and whole air-conditioning equipment device are all in high power using state, by increasing the aperture of interior organic electronic expansion valve 4, realize lowering high pressure, reduce compressor horsepower, thus reduce the temperature of frequency converter module.As Tf >=Ta, and during Tdsh < Tc, illustrate that frequency converter module temperature is too high and compressor is in normal operating conditions, shutdown system after the cumulative time that Tf >=Ta runs reaches setting-up time n, guarantee that frequency converter module is unlikely to damage.As Tf≤Tb, illustrate that Tf is normal, interior organic electronic expansion valve 4 arbitrarily can regulate aperture according to the needs of system.
As shown in Figure 2, the too high control system of module temperature of the present invention, comprise the frequency-variable module temperature sensor 1 for detecting frequency-variable module temperature value, for detecting compressor exhaust temperature sensor 2 and the controller 3 of the discharge superheat of compressor, described controller 3 respectively with described frequency-variable module temperature sensor 1, described compressor exhaust temperature sensor 2 circuit connects, described controller 3 receives the frequency-variable module temperature value signal that described frequency-variable module temperature sensor 1 detects, described controller 3 receives the discharge superheat signal of the compressor that described compressor exhaust temperature sensor 2 detects, described controller 3 is connected with interior organic electronic expansion valve 4 circuit of described air-conditioning system, described controller 3 carries out contrasting according to the threshold values of frequency-variable module temperature value and setting and controls the aperture of organic electronic expansion valve 4 in described air-conditioning system according to the discharge superheat of compressor and the contrast of setting threshold values and control the opening and closing of described air-conditioning system.
Controller 3 is by contrasting the frequency-variable module temperature detected and the discharge superheat of compressor and the threshold values of setting, judge whether frequency-variable module is in high Warm status, and judge whether realize reducing high pressure by the aperture controlling interior organic electronic expansion valve 4 according to contrast situation, reduce compressor horsepower, thus reduce frequency-variable module temperature value, avoid frequency converter module and be in the condition of high temperature for a long time and the service life of the shortening frequency converter module caused, can ensure that frequency converter module is run under safe temperature value, ensure that system cloud gray model is reliable simultaneously, frequency converter module and multiple on-line system operational reliability can be improved.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the system control method that module temperature is too high, is characterized in that, comprises the following steps:
Step one, after air-conditioning start, detects the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor;
Step 2, the frequency-variable module temperature value Tf detected and the high temperature threshold values Ta of setting and the low temperature threshold values Tb of setting is contrasted, and the 3rd threshold values Tc of the discharge superheat Tdsh of compressor and setting is carried out contrasting to control the interior aperture of organic electronic expansion valve (4) and the opening and closing of air-conditioning system.
2. the system control method that a kind of module temperature according to claim 1 is too high, is characterized in that, in described step one, the sense cycle detecting the discharge superheat Tdsh of frequency-variable module temperature value Tf and compressor is setting-up time m.
3. the system control method that a kind of module temperature according to claim 1 and 2 is too high, is characterized in that, in described step 2, as Tf >=Ta, and during Tdsh >=Tc, and the aperture of organic electronic expansion valve (4) in increasing.
4. the system control method that a kind of module temperature according to claim 1 and 2 is too high, it is characterized in that, in described step 2, as Tf >=Ta, and during Tdsh < Tc, reduce the aperture of interior organic electronic expansion valve (4) or keep the aperture of interior organic electronic expansion valve (4) constant.
5. the system control method that a kind of module temperature according to claim 4 is too high, it is characterized in that, in described step 2, as Tf >=Ta, and during Tdsh < Tc, reduce the aperture of interior organic electronic expansion valve (4) or keep the aperture of interior organic electronic expansion valve (4) constant, and start timing, after the cumulative time keeping Tf >=Ta to run reaches setting-up time n, prompting frequency-variable module temperature is too high, and shutdown system.
6. the system control method that a kind of module temperature according to claim 1 and 2 is too high, it is characterized in that, in described step 2, as Ta > Tf > Tb, increase the aperture of interior organic electronic expansion valve (4) or keep the aperture of interior organic electronic expansion valve (4) constant.
7. the system control method that a kind of module temperature according to claim 1 and 2 is too high, is characterized in that, in described step 2, as Tf≤Tb, assert that Tf is normal, the aperture of interior organic electronic expansion valve (4) freely controls.
8. the too high control system of module temperature, it is characterized in that, comprise the frequency-variable module temperature sensor (1) for detecting frequency-variable module temperature value, for detecting compressor exhaust temperature sensor (2) and the controller (3) of the discharge superheat of compressor, described controller (3) respectively with described frequency-variable module temperature sensor (1), described compressor exhaust temperature sensor (2) circuit connects, described controller (3) receives the frequency-variable module temperature value signal that described frequency-variable module temperature sensor (1) is detected, described controller (3) receives the discharge superheat signal of the compressor that described compressor exhaust temperature sensor (2) is detected, described controller (3) is connected with interior organic electronic expansion valve (4) circuit of described air-conditioning system, described controller (3) carries out contrasting according to the threshold values of frequency-variable module temperature value and setting and controls the aperture of organic electronic expansion valve (4) in described air-conditioning system according to the discharge superheat of compressor and the contrast of setting threshold values and control the opening and closing of described air-conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313875.1A CN104949269A (en) | 2015-06-08 | 2015-06-08 | System control method and device for overhigh module temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313875.1A CN104949269A (en) | 2015-06-08 | 2015-06-08 | System control method and device for overhigh module temperature |
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| CN104949269A true CN104949269A (en) | 2015-09-30 |
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| CN201510313875.1A Pending CN104949269A (en) | 2015-06-08 | 2015-06-08 | System control method and device for overhigh module temperature |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865074A (en) * | 2016-04-25 | 2016-08-17 | 广东美的暖通设备有限公司 | VRF air conditioning system and control method for heating and throttling element thereof |
| CN107477932A (en) * | 2017-08-15 | 2017-12-15 | 广东美的暖通设备有限公司 | The temperature-sensitive bag Failure Control method and apparatus of air-conditioning system and its frequency-variable module |
| CN108895627A (en) * | 2018-05-29 | 2018-11-27 | 广东美的暖通设备有限公司 | The control method of indoor unit |
| CN110793151A (en) * | 2019-11-19 | 2020-02-14 | 宁波奥克斯电气股份有限公司 | Multi-split refrigerant control method and device, air conditioner and storage medium |
| CN111059692A (en) * | 2019-12-10 | 2020-04-24 | 珠海格力电器股份有限公司 | Control method for reducing protection shutdown times of air conditioning system, computer readable storage medium and air conditioner |
| CN113007880A (en) * | 2021-03-29 | 2021-06-22 | 珠海格力智能装备有限公司 | Detection method and device for air conditioner outdoor unit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042282A1 (en) * | 2004-08-26 | 2006-03-02 | Thermo King Corporation | Control method for operating a refrigeration system |
| KR20080059906A (en) * | 2006-12-26 | 2008-07-01 | 엘지전자 주식회사 | Air conditioner and control method of the same |
| CN101821509A (en) * | 2007-10-08 | 2010-09-01 | 艾默生环境优化技术有限公司 | Compressor protection system and method |
| JP2013130160A (en) * | 2011-12-22 | 2013-07-04 | Mitsubishi Electric Corp | Air conditioner |
| CN103196202A (en) * | 2012-01-09 | 2013-07-10 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN203489401U (en) * | 2013-09-29 | 2014-03-19 | 苏州三星电子有限公司 | Variable frequency air conditioner and variable frequency module cooling system thereof |
| CN103884140A (en) * | 2014-02-21 | 2014-06-25 | 海信（山东）空调有限公司 | Method and system for controlling discharge superheat degree of air conditioning compressor |
| CN103900222A (en) * | 2014-03-07 | 2014-07-02 | 广东美的暖通设备有限公司 | Method for cooling air conditioner electronic control frequency conversion module and air conditioner |
| CN104131978A (en) * | 2007-10-08 | 2014-11-05 | 艾默生环境优化技术有限公司 | Variable speed compressor protection system and method |
| CN104596045A (en) * | 2015-02-12 | 2015-05-06 | 珠海格力电器股份有限公司 | Temperature control method for frequency converter of air conditioning system |
-
2015
- 2015-06-08 CN CN201510313875.1A patent/CN104949269A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060042282A1 (en) * | 2004-08-26 | 2006-03-02 | Thermo King Corporation | Control method for operating a refrigeration system |
| KR20080059906A (en) * | 2006-12-26 | 2008-07-01 | 엘지전자 주식회사 | Air conditioner and control method of the same |
| CN101821509A (en) * | 2007-10-08 | 2010-09-01 | 艾默生环境优化技术有限公司 | Compressor protection system and method |
| CN104131978A (en) * | 2007-10-08 | 2014-11-05 | 艾默生环境优化技术有限公司 | Variable speed compressor protection system and method |
| JP2013130160A (en) * | 2011-12-22 | 2013-07-04 | Mitsubishi Electric Corp | Air conditioner |
| CN103196202A (en) * | 2012-01-09 | 2013-07-10 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN203489401U (en) * | 2013-09-29 | 2014-03-19 | 苏州三星电子有限公司 | Variable frequency air conditioner and variable frequency module cooling system thereof |
| CN103884140A (en) * | 2014-02-21 | 2014-06-25 | 海信（山东）空调有限公司 | Method and system for controlling discharge superheat degree of air conditioning compressor |
| CN103900222A (en) * | 2014-03-07 | 2014-07-02 | 广东美的暖通设备有限公司 | Method for cooling air conditioner electronic control frequency conversion module and air conditioner |
| CN104596045A (en) * | 2015-02-12 | 2015-05-06 | 珠海格力电器股份有限公司 | Temperature control method for frequency converter of air conditioning system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865074A (en) * | 2016-04-25 | 2016-08-17 | 广东美的暖通设备有限公司 | VRF air conditioning system and control method for heating and throttling element thereof |
| CN105865074B (en) * | 2016-04-25 | 2018-09-07 | 广东美的暖通设备有限公司 | Multi-line system and its control method for heating restricting element |
| CN107477932A (en) * | 2017-08-15 | 2017-12-15 | 广东美的暖通设备有限公司 | The temperature-sensitive bag Failure Control method and apparatus of air-conditioning system and its frequency-variable module |
| CN108895627A (en) * | 2018-05-29 | 2018-11-27 | 广东美的暖通设备有限公司 | The control method of indoor unit |
| CN108895627B (en) * | 2018-05-29 | 2021-03-12 | 广东美的暖通设备有限公司 | Control method of indoor unit |
| CN110793151A (en) * | 2019-11-19 | 2020-02-14 | 宁波奥克斯电气股份有限公司 | Multi-split refrigerant control method and device, air conditioner and storage medium |
| CN110793151B (en) * | 2019-11-19 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Multi-split refrigerant control method and device, air conditioner and storage medium |
| CN111059692A (en) * | 2019-12-10 | 2020-04-24 | 珠海格力电器股份有限公司 | Control method for reducing protection shutdown times of air conditioning system, computer readable storage medium and air conditioner |
| CN113007880A (en) * | 2021-03-29 | 2021-06-22 | 珠海格力智能装备有限公司 | Detection method and device for air conditioner outdoor unit |
| CN113007880B (en) * | 2021-03-29 | 2022-05-27 | 珠海格力智能装备有限公司 | Detection method and device for air conditioner outdoor unit |
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