CN112594868A - Air conditioner and defrosting control method thereof - Google Patents
Air conditioner and defrosting control method thereof Download PDFInfo
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- CN112594868A CN112594868A CN202011602959.4A CN202011602959A CN112594868A CN 112594868 A CN112594868 A CN 112594868A CN 202011602959 A CN202011602959 A CN 202011602959A CN 112594868 A CN112594868 A CN 112594868A
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- air conditioner
- pressure
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- refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner and a defrosting control method thereof, wherein the air conditioner comprises: the air conditioner includes: the centrifugal fan comprises an air supply motor, a centrifugal fan blade, a pressure detection module, a temperature detection module, a storage module and a central processing unit, and the centrifugal fan blade pressure detection device has the beneficial effects that: the frosting degree of the outdoor heat exchanger when the air conditioner receives a shutdown signal is accurately judged, and then whether the air conditioner needs to be defrosted firstly and then shut down is judged, so that the frosted operation of the outdoor heat exchanger when the air conditioner is started for heating next time is completely avoided, the heating effect is improved, and the safe operation of the air conditioner is protected.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a defrosting method of the air conditioner.
Technical Field
At present, when the air conditioner is in heating operation in winter and the outdoor environment temperature is low, the outdoor heat exchanger frosts to different degrees, so the air conditioner can be automatically switched to a defrosting mode to melt the frost layer on the outdoor heat exchanger after a certain time interval. However, when the outdoor heat exchanger frosts seriously, but the air conditioner does not enter the defrosting mode, the air conditioner receives a shutdown signal, if the outdoor environment temperature is low, the frost layer on the outdoor heat exchanger cannot be melted automatically after shutdown, when the air conditioner is started for heating next time, because the frost layer is accumulated on the outdoor heat exchanger, the heating effect is poor, even because the frost layer is accumulated with higher speed, the later defrosting is not clean, the human body comfort is affected, and the electric energy is wasted, and the compressor can be started or a liquid refrigerant is sucked into the compressor in the running process to burn the compressor in serious cases.
In summary, how to defrost to improve the defrosting effect and reduce the influence on the heating effect of the air conditioner is a problem to be solved by those skilled in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
In view of the above problems in the prior art, an object of the present invention is to provide a defrosting method for an air conditioner, which can accurately determine the frosting degree of an outdoor heat exchanger when the air conditioner receives a shutdown signal, and further determine whether the air conditioner needs to be powered off after defrosting is performed.
In order to achieve the above object, the present invention provides a defrosting control method for an air conditioner, which is characterized by comprising the following steps:
s1: when the air conditioner receives a shutdown signal, judging whether the air conditioner operates in a heating mode;
s2: if the air conditioner runs in a heating mode, the pressure detection module detects the refrigerant condensation pressure Pd1 at the moment before shutdown and the minimum value Pd0 of the refrigerant condensation pressure at the first set time after the heating startup running, and simultaneously detects the refrigerant evaporation pressure Pe1 at the moment before shutdown and the minimum value Pe0 of the refrigerant evaporation pressure at the first set time after the heating startup running;
s3: judging the relation between Pd0-Pd1 and a preset condensation pressure attenuation judgment value delta Pd and the relation between Pe0-Pe1 and a preset evaporation pressure attenuation judgment value delta Pe according to the detected parameters;
if the size relationship between Pd0-Pd1 and delta Pd meets the first condition, or the size relationship between Pe0-Pe1 and delta Pe meets the second condition, carrying out the next step;
and if the magnitude relation between Pd0-Pd1 and delta Pd meets a third condition, or the magnitude relation between Pe0-Pe1 and delta Pe meets a fourth condition, controlling the air conditioner to shut down.
S4: acquiring an outdoor environment temperature parameter detected before the air conditioner receives a shutdown signal, and judging the magnitude relation between the outdoor environment temperature T before the air conditioner receives the shutdown signal and a preset outdoor environment temperature comparison value T0;
if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet a fifth condition, switching to the defrosting mode for operation;
and if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet the sixth condition, the defrosting mode is not executed, and the air conditioner is controlled to be shut down.
Further, the first condition is that the minimum value Pd0 of the refrigerant condensation pressure — the refrigerant condensation pressure Pd1 at the time before shutdown is greater than or equal to the preset condensation pressure decrease determination value Δ Pd.
Further, the second condition is that the minimum value Pe0 of the refrigerant evaporation pressure-the refrigerant evaporation pressure Pe1 at a time before shutdown is greater than or equal to the preset evaporation pressure decay determination value Δ Pe.
Further, the third condition is a minimum value Pd0 of the refrigerant condensation pressure — the refrigerant condensation pressure Pd1 < the preset condensation pressure decrease determination value Δ Pd at the time before shutdown.
Further, the fourth condition is a minimum value Pe0 of the refrigerant evaporation pressure-the refrigerant evaporation pressure Pe1 < the preset evaporation pressure decay determination value Δ Pe at the time before shutdown.
Further, the fifth condition is that the outdoor environment temperature T is less than or equal to a preset outdoor environment temperature comparison value T0.
Further, the sixth condition is that the outdoor ambient temperature T > a preset outdoor ambient temperature comparison value T0.
Further, the first set time is 1-15 minutes.
Further, the first set time is 3-5 minutes.
Based on the defrosting method of the air conditioner, the invention also provides the air conditioner, which comprises the following steps: the air conditioner includes: air supply motor, centrifugal fan blade, pressure detection module, temperature detection module, storage module and central processing unit.
The air supply motor is used for driving the centrifugal fan blade;
the centrifugal fan blade is used for providing air volume for the outdoor heat exchanger;
the pressure detection module is used for detecting the condensation pressure and the evaporation pressure value of the refrigerant;
the temperature detection module is used for detecting the outdoor environment temperature T;
and the storage module is used for storing the refrigerant condensation pressure Pd1 detected by the pressure detection module, the preset condensation pressure attenuation judgment value delta Pd, the refrigerant evaporation pressure Pe1 detected by the pressure detection module, the preset evaporation pressure attenuation judgment value delta Pe and a preset outdoor environment temperature comparison value T0 in real time.
And the central processing unit is used for comparing the detected data and controlling the operation mode of the air conditioner.
The invention has the beneficial effects that: the frosting degree of the outdoor heat exchanger when the air conditioner receives a shutdown signal is accurately judged, and then whether the air conditioner needs to be defrosted firstly and then shut down is judged, so that the frosted operation of the outdoor heat exchanger when the air conditioner is started for heating next time is completely avoided, the heating effect is improved, and the safe operation of the air conditioner is protected.
Drawings
Fig. 1 is a schematic flow chart illustrating a defrosting method for an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "including" and "having," and any variations thereof, in the description and claims of embodiments of the present disclosure and the above-described drawings are intended to cover non-exclusive inclusions.
Referring to fig. 1, the present invention provides a defrosting control method for an air conditioner, which is characterized by comprising the following steps:
s1: when the air conditioner receives a shutdown signal, judging whether the air conditioner operates in a heating mode;
s2: if the air conditioner runs in a heating mode, the pressure detection module detects the refrigerant condensation pressure Pd1 at the moment before shutdown and the minimum value Pd0 of the refrigerant condensation pressure at the first set time after the heating startup running, and simultaneously detects the refrigerant evaporation pressure Pe1 at the moment before shutdown and the minimum value Pe0 of the refrigerant evaporation pressure at the first set time after the heating startup running;
s3: judging the relation between Pd0-Pd1 and a preset condensation pressure attenuation judgment value delta Pd and the relation between Pe0-Pe1 and a preset evaporation pressure attenuation judgment value delta Pe according to the detected parameters;
if the size relationship between Pd0-Pd1 and delta Pd meets the first condition, or the size relationship between Pe0-Pe1 and delta Pe meets the second condition, carrying out the next step;
and if the magnitude relation between Pd0-Pd1 and delta Pd meets a third condition, or the magnitude relation between Pe0-Pe1 and delta Pe meets a fourth condition, controlling the air conditioner to shut down.
S4: acquiring an outdoor environment temperature parameter detected before the air conditioner receives a shutdown signal, and judging the magnitude relation between the outdoor environment temperature T before the air conditioner receives the shutdown signal and a preset outdoor environment temperature comparison value T0;
if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet a fifth condition, switching to the defrosting mode for operation;
and if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet the sixth condition, the defrosting mode is not executed, and the air conditioner is controlled to be shut down.
It is understood that when the air conditioner receives a shutdown operation signal, whether the air conditioner operates in a heating mode can be judged, when the central processing unit compares the detected refrigerant condensation pressure Pd1 before shutdown with the minimum value Pd0 of the refrigerant condensation pressure during a period of heating startup operation, if the first condition or the second condition is met, the next step of judging the outdoor environment temperature T is entered, when the outdoor environment temperature T is judged to meet the fifth condition, the air conditioner performs defrosting before receiving the shutdown signal and then shuts down, if the three conditions cannot be met simultaneously, the air conditioner is directly shut down, the outdoor environment temperature parameter detected before receiving the shutdown signal is obtained, the magnitude relation between the outdoor environment temperature T before receiving the shutdown signal and the preset outdoor environment temperature comparison value T0 is judged, and therefore, the frosting condition of the outdoor heat exchanger of the air conditioner is judged more accurately, the problem that the air conditioner is free of frost and cannot be detected due to frost is solved, the central processing unit controls the air conditioner to enter defrosting operation, defrosting operation is stopped after a frost layer on the outdoor heat exchanger is melted, and the air conditioner is controlled to be shut down.
Further, the first condition is that the minimum value Pd0 of the refrigerant condensation pressure — the refrigerant condensation pressure Pd1 at the time before shutdown is greater than or equal to the preset condensation pressure decrease determination value Δ Pd.
Further, the second condition is that the minimum value Pe0 of the refrigerant evaporation pressure-the refrigerant evaporation pressure Pe1 at a time before shutdown is greater than or equal to the preset evaporation pressure decay determination value Δ Pe.
Further, the third condition is a minimum value Pd0 of the refrigerant condensation pressure — the refrigerant condensation pressure Pd1 < the preset condensation pressure decrease determination value Δ Pd at the time before shutdown.
Further, the fourth condition is a minimum value Pe0 of the refrigerant evaporation pressure-the refrigerant evaporation pressure Pe1 < the preset evaporation pressure decay determination value Δ Pe at the time before shutdown.
Further, the fifth condition is that the outdoor environment temperature T is less than or equal to a preset outdoor environment temperature comparison value T0.
Further, the sixth condition is that the outdoor ambient temperature T > a preset outdoor ambient temperature comparison value T0.
Further, the first set time is 1-15 minutes.
Further, the first set time is 3-5 minutes.
Based on the defrosting method for the air conditioner provided by the above embodiment, another aspect of the present invention further provides an air conditioner, which is shown in fig. 2 and includes: the air conditioner includes: air supply motor, centrifugal fan blade, pressure detection module, temperature detection module, storage module and central processing unit.
The air supply motor is used for driving the centrifugal fan blade;
the centrifugal fan blade is used for providing air volume for the outdoor heat exchanger;
the pressure detection module is used for detecting the condensation pressure and the evaporation pressure value of the refrigerant;
the temperature detection module is used for detecting the outdoor environment temperature T;
and the storage module is used for storing the refrigerant condensation pressure Pd1 detected by the pressure detection module, the preset condensation pressure attenuation judgment value delta Pd, the refrigerant evaporation pressure Pe1 detected by the pressure detection module, the preset evaporation pressure attenuation judgment value delta Pe and a preset outdoor environment temperature comparison value T0 in real time.
And the central processing unit is used for comparing the detected data and controlling the operation mode of the air conditioner.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The defrosting control method of the air conditioner is characterized by comprising the following steps:
s1: when the air conditioner receives a shutdown signal, judging whether the air conditioner operates in a heating mode;
s2: if the air conditioner runs in a heating mode, the pressure detection module detects the refrigerant condensation pressure Pd1 at the moment before shutdown and the minimum value Pd0 of the refrigerant condensation pressure at the first set time after the heating startup running, and simultaneously detects the refrigerant evaporation pressure Pe1 at the moment before shutdown and the minimum value Pe0 of the refrigerant evaporation pressure at the first set time after the heating startup running;
s3: judging the relation between Pd0-Pd1 and a preset condensation pressure attenuation judgment value delta Pd and the relation between Pe0-Pe1 and a preset evaporation pressure attenuation judgment value delta Pe according to the detected parameters;
if the size relationship between Pd0-Pd1 and delta Pd meets the first condition, or the size relationship between Pe0-Pe1 and delta Pe meets the second condition, carrying out the next step;
and if the magnitude relation between Pd0-Pd1 and delta Pd meets a third condition, or the magnitude relation between Pe0-Pe1 and delta Pe meets a fourth condition, controlling the air conditioner to shut down.
S4: acquiring an outdoor environment temperature parameter detected before the air conditioner receives a shutdown signal, and judging the magnitude relation between the outdoor environment temperature T before the air conditioner receives the shutdown signal and a preset outdoor environment temperature comparison value T0;
if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet a fifth condition, switching to the defrosting mode for operation;
and if the outdoor environment temperature T before the air conditioner receives the shutdown signal and the preset outdoor environment temperature comparison value T0 meet the sixth condition, the defrosting mode is not executed, and the air conditioner is controlled to be shut down.
2. An air conditioner defrost control method as claimed in claim 1, wherein said first condition is a minimum value of refrigerant condensing pressure Pd 0-refrigerant condensing pressure Pd1 ≧ a preset condensing pressure attenuation determination value Δ Pd at a time before shutdown.
3. The defrosting control method of an air conditioner according to claim 1, wherein the second condition is a minimum value Pe0 of the refrigerant evaporating pressure-the refrigerant evaporating pressure Pe1 is not less than a preset evaporating pressure decay determining value Δ Pe at a time before shutdown.
4. An air conditioner defrosting control method according to claim 1 wherein the third condition is a minimum value of refrigerant condensing pressure Pd 0-refrigerant condensing pressure Pd1 < preset condensing pressure attenuation determination value Δ Pd at the time before shutdown.
5. An air conditioner defrosting control method as set forth in claim 1, characterized in that said fourth condition is a minimum value Pe0 of refrigerant evaporation pressure-a time before shutdown refrigerant evaporation pressure Pe1 < a preset evaporation pressure decay determination value Δ Pe.
6. The defrosting control method of an air conditioner according to claim 1, wherein the fifth condition is that the outdoor ambient temperature T is less than or equal to a preset outdoor ambient temperature comparison value T0.
7. The defrosting control method of an air conditioner according to claim 1, wherein the sixth condition is that the outdoor ambient temperature T > a preset outdoor ambient temperature comparison value T0.
8. The defrosting control method of an air conditioner according to claim 1, wherein the first set time is between 1 and 15 minutes.
9. The defrosting control method of an air conditioner according to claim 1, wherein the first set time is between 3 and 5 minutes.
10. An air conditioner adopting the defrosting method of an air conditioner according to any one of claims 1 to 9, comprising: air supply motor, centrifugal fan blade, pressure detection module, temperature detection module, storage module and central processing unit.
The air supply motor is used for driving the centrifugal fan blade;
the centrifugal fan blade is used for providing air volume for the outdoor heat exchanger;
the pressure detection module is used for detecting the condensation pressure and the evaporation pressure value of the refrigerant;
the temperature detection module is used for detecting the outdoor environment temperature T;
and the storage module is used for storing the refrigerant condensation pressure Pd1 detected by the pressure detection module, the preset condensation pressure attenuation judgment value delta Pd, the refrigerant evaporation pressure Pe1 detected by the pressure detection module, the preset evaporation pressure attenuation judgment value delta Pe and a preset outdoor environment temperature comparison value T0 in real time.
And the central processing unit is used for comparing the detected data and controlling the operation mode of the air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011602959.4A CN112594868B (en) | 2020-12-30 | 2020-12-30 | Air conditioner and defrosting control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011602959.4A CN112594868B (en) | 2020-12-30 | 2020-12-30 | Air conditioner and defrosting control method thereof |
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| CN112594868A true CN112594868A (en) | 2021-04-02 |
| CN112594868B CN112594868B (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639408A (en) * | 2021-08-11 | 2021-11-12 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836857A (en) * | 2012-11-26 | 2014-06-04 | 浙江盾安人工环境股份有限公司 | Defrosting method of air conditioner |
| CN105135609A (en) * | 2015-08-19 | 2015-12-09 | 广东美的暖通设备有限公司 | Method for controlling pressure of air conditioner system, controller and air conditioner system |
| CN105157290A (en) * | 2014-05-26 | 2015-12-16 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| CN106091251A (en) * | 2016-06-14 | 2016-11-09 | 珠海格力电器股份有限公司 | A kind of dirty stifled determination methods for heat exchanger, device and air-conditioning |
| CN111219852A (en) * | 2020-01-10 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Defrosting method and device, air conditioner and storage medium |
-
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- 2020-12-30 CN CN202011602959.4A patent/CN112594868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836857A (en) * | 2012-11-26 | 2014-06-04 | 浙江盾安人工环境股份有限公司 | Defrosting method of air conditioner |
| CN105157290A (en) * | 2014-05-26 | 2015-12-16 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| CN105135609A (en) * | 2015-08-19 | 2015-12-09 | 广东美的暖通设备有限公司 | Method for controlling pressure of air conditioner system, controller and air conditioner system |
| CN106091251A (en) * | 2016-06-14 | 2016-11-09 | 珠海格力电器股份有限公司 | A kind of dirty stifled determination methods for heat exchanger, device and air-conditioning |
| CN111219852A (en) * | 2020-01-10 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Defrosting method and device, air conditioner and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639408A (en) * | 2021-08-11 | 2021-11-12 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
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