CN107062537B - Method and device for detecting cleanliness of condenser of outdoor unit of air conditioner - Google Patents
Method and device for detecting cleanliness of condenser of outdoor unit of air conditioner Download PDFInfo
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- 230000003749 cleanliness Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000008859 change Effects 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 14
- 230000001276 controlling effect Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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Abstract
The invention discloses a method for detecting the cleanliness of a condenser of an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The method comprises the following steps: detecting a change in a fan load of the outdoor unit; when the change meets a set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned. The invention also discloses a device for detecting the cleanliness of the condenser of the outdoor unit of the air conditioner. The device includes: the detection module is used for detecting the change of the fan load of the outdoor unit; a determination module for determining that the cleanliness of the condenser indicates cleaning of the condenser when the change meets a set condition.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for detecting the cleanliness of a condenser of an air conditioner outdoor unit.
Background
The condenser of the outdoor unit of the air conditioner is blocked by dust or dirt, so that the heat exchange effect of the condenser is influenced, and the refrigerating and heating effects of the indoor unit are influenced. The outdoor condenser is in different environments and has different ash deposition speeds. If the condenser is in a very large environment, much dust can be adsorbed by the condenser. In particular, the multi-connected air conditioning unit is generally installed on the roof or a platform part of a building, and is in a severe environment and high in dust deposition speed.
At present, a countermeasure for treating the blockage of the condenser of the outdoor unit by dust or dirt depends on the regular cleaning of after-sales personnel, and a detection scheme aiming at the cleanliness of the condenser of the outdoor unit of the air conditioner is not available.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting the cleanliness of a condenser of an air conditioner outdoor unit, which aim to solve the problem that the cleanliness of the condenser of the air conditioner outdoor unit cannot be detected in the prior art. 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 and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the embodiments of the present invention, there is provided a method for detecting cleanliness of a condenser of an outdoor unit of an air conditioner, the method including: detecting a change in a fan load of the outdoor unit; when the change meets a set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned.
Optionally, the method further comprises: determining an operating mode of the air conditioner; when the working mode is a refrigeration mode, executing a step of detecting the change of the fan load of the outdoor unit; and when the working mode is the heating mode, judging whether the condenser is in a frosting working condition, and if the condenser is not in the frosting working condition, executing the step of detecting the change of the fan load of the outdoor unit.
Optionally, the determining whether the condenser is in a frosting condition includes: judging whether the temperature of the condenser is greater than a first temperature set value and whether the ambient temperature of the outdoor unit is greater than a second temperature set value; and when the temperature of the condenser is greater than the first temperature set value and the ambient temperature of the outdoor unit is greater than the second temperature set value, the condenser is not in a frosting working condition.
Optionally, the change satisfies a set condition, including: and the change meets the set condition corresponding to the current rotating speed of the fan.
Optionally, the change of the fan load is: a change in a drive parameter of the fan; the setting conditions are as follows: the driving parameter of the fan is increased to be larger than a set threshold value.
Optionally, the method for determining the set threshold includes: controlling the air conditioner to enter a debugging mode; reading the driving parameters of the fan in each reading period; and when the reading reaches the set times, calculating the average value of the driving parameters of the fan, and taking the average value as the set threshold value.
Optionally, the method for determining the set threshold further includes: calculating the sum of the average value and a set adjustment amount as the set threshold; the adjustment amount is related to at least one of a wind speed and a dust amount of an environment in which the air conditioner is located.
Optionally, the method for determining the set threshold further includes: and after the air conditioner is controlled to enter a debugging mode, controlling the rotating speed of the fan to a set value, or controlling the rotating speed of the fan to a set interval.
Optionally, the method further comprises: and sending early warning information for cleaning the condenser to an indoor unit of the air conditioner.
According to a second aspect of the embodiments of the present invention, there is provided an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner, the apparatus including: the detection module is used for detecting the change of the fan load of the outdoor unit; a determination module for determining that the cleanliness of the condenser indicates cleaning of the condenser when the change meets a set condition.
According to a third aspect of the embodiments of the present invention, there is provided an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner, the apparatus including: a memory to store instructions; a processor configured to read the instructions, perform the following: detecting a change in a fan load of the outdoor unit; when the change meets a set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the method comprises the steps of detecting the fan load of the outdoor unit, representing the cleanliness of a condenser by the value of the fan load, judging the fan load, and considering that the condenser needs to be cleaned when the fan load meets set conditions, so that the detection scheme for the cleanliness of the condenser of the outdoor unit of the air conditioner is provided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic flowchart illustrating a method for detecting the cleanliness of a condenser of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 2 is a schematic flowchart illustrating a method for detecting the cleanliness of a condenser of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 3 is a block diagram illustrating an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 4 is a block diagram illustrating an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
As shown in fig. 1, a schematic flow chart of a method for cleaning a condenser of an outdoor unit of an air conditioner according to an embodiment of the present invention includes: s101, detecting the change of the fan load of an outdoor unit; and S102, when the change meets the set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned.
The method comprises the steps of detecting the fan load of the outdoor unit, representing the cleanliness of a condenser by using the value of the fan load, judging the fan load, and determining that the condenser needs to be cleaned when the fan load meets a set condition, so that the embodiment of the invention provides a detection scheme aiming at the cleanliness of the condenser of the outdoor unit of the air conditioner.
In some embodiments, as shown in fig. 2, the method for cleanliness of the condenser of the outdoor unit of the air conditioner includes the following steps.
Step S201, determining the operating mode of the air conditioner, and when the air conditioner is in the cooling mode, executing step S203, and when the air conditioner is in the heating mode, executing step S202.
In step S202, it is determined whether the condenser is in a frosting condition, and if the condenser is not in the frosting condition, step S203 is performed, and if the condenser is in the frosting condition, a defrosting process is performed.
The condenser, if in a frosting condition, will also affect the heat exchange efficiency of the condenser, similar to the case where the condenser is clogged with dust or dirt. Step S202 is performed after determining that the air conditioner is in the heating mode to determine whether the condenser is in the frosting condition. The specific judgment process is as follows: and judging whether the temperature of the condenser is greater than a first temperature set value and whether the environment temperature of the outdoor unit is greater than a second temperature set value, and when the temperature of the condenser is greater than the first temperature set value and the environment temperature of the outdoor unit is greater than the second temperature set value, determining that the condenser is not in a frosting working condition.
If the condenser is in the frosting condition, the defrosting process is performed on the condenser, and then the step S202 is continuously executed. Or if the condenser is in the frosting working condition, carrying out defrosting treatment on the condenser. And then proceeds to step S201.
In step S203, a variation in fan driving parameters of the outdoor unit is detected.
The driving parameter of the outdoor unit fan indicates the size of the fan load. In the air condensing units, condenser and fan are located between air intake and the air outlet, the condenser is located the air intake side, the fan is located the air outlet side, wind is inhaled by the fan through the condenser, then discharges through the air outlet, has blocked up when the condenser, and the pressure that the fan was inhaled will grow, and the drive parameter of fan is just grow. The driving parameter of the outdoor unit fan can indicate the load of the outdoor unit fan.
In step S204, it is determined whether the driving parameter of the fan is increased to be greater than a set threshold, if so, step S205 is executed, otherwise, step S203 is continuously executed.
The air conditioning system is preset with a set threshold value of a fan driving parameter. As the air conditioning system is operated for a long time, dust adsorbed by the condenser increases, and the fan driving parameter of the outdoor unit gradually increases, and when it is detected that the fan driving parameter increases to be greater than the set threshold, step S205 is performed.
In step S205, confirming the cleanliness of the condenser indicates cleaning of the condenser.
As an optional embodiment, the fan rotation speeds are different, and the set thresholds of the fan driving parameters of the corresponding outdoor units may be different. At this time, when the air conditioner is in the heating mode, the rotation speed of the fan may be obtained before step S202. When the air conditioner is in the cooling mode, the rotation speed of the fan may be obtained before step S203.
The fan rotation speed can be divided into a high speed, a medium speed and a low speed, wherein the high speed, the medium speed and the low speed represent corresponding intervals of the fan rotation speed. When the rotating speed of the fan is high speed, medium speed and low speed, the rotating speed of the fan corresponds to a set threshold value of a fan driving parameter.
The installation positions of all air conditioners are different, the load environments of outdoor units of the air conditioners are different, so that the driving motors reach the same rotating speed, and the required fan driving parameters are different, so that before the cleanliness of the condenser is judged by using the fan driving parameters to determine whether the condenser needs to be cleaned or not, a fan driving parameter reference value is obtained firstly, and the reference value is used as a set threshold value of the fan driving parameters. The air conditioner determines a fan driving parameter reference value in a debugging mode. The determination process of setting the threshold is as follows: and controlling the air conditioner to enter a debugging mode, reading fan driving parameters in each reading period, and calculating the average value of the fan driving parameters when the reading reaches the set times.
The following description of the determination of the set threshold is given in conjunction with a specific embodiment:
and placing the air conditioning unit in a test environment which simulates the later application environment setting, and defaulting the air conditioning condenser to be clean. And controlling the air conditioner to enter a debugging mode, and setting the rotating speed of the fan to be high. And when the fan is in a high-speed condition, cumulatively reading the real-time fan driving parameter value once per main cycle, and cumulatively calculating the read fan driving parameter value. And when the read times reach the set times, calculating the average value of the fan driving parameters. And taking the average value as a set threshold value of the fan driving parameter.
Further, in consideration of the influence of the environmental factors of the outdoor unit, after the average value of the fan driving parameters is calculated, the sum of the average value and the set adjustment amount is calculated as the set threshold of the fan driving parameters. Wherein the adjustment amount is related to at least one of the wind speed and the dust amount of the environment in which the air conditioner is located.
If the weather of the strong wind in the later application region of the air conditioner is more, the air intake amount penetrating through the condenser is larger, and compared with other regions with less weather of the strong wind, the fan driving parameters are smaller when the cleanliness of the condenser is the same.
If the dust amount of the later application environment of the air conditioner is large, the dust attaching speed of the condenser is high, and compared with other environments with small dust amounts, the time for increasing the fan driving parameters to the same value is short under the same rotating speed.
The following description of the determination of the set threshold is given in conjunction with a specific embodiment:
and detecting the wind speed of the later application environment, determining the difference value of the average value of the wind speed in the environment with more gale weather and the average value of the wind speed in the environment with less gale weather, and setting an adjustment quantity according to the difference value.
And placing the air conditioning unit in a test environment which simulates the later application environment setting, and defaulting the air conditioning condenser to be clean. And controlling the air conditioner to enter a debugging mode, and setting the rotating speed of the fan to be high. When the fan is in a high-speed condition, the real-time fan driving parameter value is read once in an accumulated mode in each main cycle, and the read driving parameter value is calculated in an accumulated mode. When the number of times of reading reaches the set number of times, an average value of the driving parameters is obtained. And calculating the sum of the average value of the fan driving parameters and the set regulating quantity, and using the sum as a set threshold value of the fan driving parameters.
The method comprises the steps of detecting fan driving parameters of an outdoor unit, representing the cleanliness of a condenser by using values of the fan driving parameters, judging the fan driving parameters, and determining that the condenser needs to be cleaned when the fan driving parameters meet set conditions.
In some embodiments, after confirming that the cleanliness of the condenser indicates that the condenser is cleaned in step S205, an early warning message for cleaning the condenser is sent to the indoor unit of the air conditioner. And reminding a user to clean the condenser.
Corresponding to the foregoing method embodiment, as shown in fig. 4, a schematic diagram of an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner according to an embodiment of the present invention is shown. Comprising a detection module 301 and a determination module 302.
The detecting module 301 is configured to detect a change in fan load of the outdoor unit. A determining module 302, configured to determine that the cleanliness of the condenser indicates to clean the condenser when the change detected by the detecting module 301 satisfies a set condition.
The device that this embodiment provided can realize detecting and judging the fan load to the fan load of off-premises station. The method comprises the steps of detecting the fan load of the outdoor unit, representing the cleanliness of the condenser by the value of the fan load, judging the fan load, and determining that the condenser needs to be cleaned when the fan load meets set conditions.
In some embodiments, the device for detecting the cleanliness of the condenser of the outdoor unit of the air conditioner comprises a detection module 301, a determination module 302 and a judgment module 401.
The determining module 302 is configured to determine an operating mode of the air conditioner, and further determine that the cleanliness of the condenser indicates to clean the condenser when the variation of the outdoor unit fan driving parameter meets a set condition.
The detection module 301 is configured to detect a change of a driving parameter of an outdoor unit fan when the operating mode of the air conditioner is a cooling mode or the operating mode of the air conditioner is a heating mode and the outdoor unit fan is not in a frosting condition.
The judging module 401 is used for judging whether the condenser is in a frosting condition when the working mode of the air conditioner is a heating mode, and is also used for judging whether the change of the outdoor unit fan driving parameter meets the condition.
In some embodiments, the device for detecting the cleanliness of the condenser of the outdoor unit of the air conditioner further comprises a temperature detection module for detecting the temperature of the condenser and the outdoor environment temperature. The determining module 401 may determine whether the condenser is in the frosting condition by determining whether the temperature of the condenser detected by the temperature detecting module is greater than a first temperature setting value and whether the ambient temperature of the outdoor unit is greater than a second temperature setting value.
As an optional implementation manner, on the basis of the foregoing embodiment, to determine the setting condition of the driving parameter variation, the apparatus further includes a control module, a reading module and a calculating module. The control module is used for controlling the air conditioner to enter a debugging mode, and the reading module is used for reading fan driving parameters of the outdoor unit in each reading period. The calculation module is used for calculating the average value of the fan driving parameters when the set times are read.
Further, when the influence of the environmental factors of the outdoor unit is considered, the calculation module is further used for calculating the sum of the average value of the fan driving parameters and the set adjustment amount.
The device that this embodiment provided can realize detecting and judging fan drive parameter to the fan drive parameter of off-premises station. The method comprises the steps of detecting fan driving parameters of an outdoor unit, representing the cleanliness of a condenser by using values of the fan driving parameters, judging the fan driving parameters, and determining that the condenser needs to be cleaned when the fan driving parameters meet set conditions.
In some embodiments, on the basis of the foregoing embodiments, the apparatus for detecting the cleanliness of a condenser of an outdoor unit of an air conditioner further includes a sending module, configured to send warning information for cleaning the condenser to an indoor unit of the air conditioner after the determining module 302 determines that the cleanliness of the condenser indicates that the condenser is cleaned.
Corresponding to the foregoing method embodiment, an apparatus for detecting cleanliness of a condenser of an outdoor unit of an air conditioner according to an embodiment of the present invention includes: a memory and a processor. Wherein the memory is used for storing instructions, and the processor is configured to read the instructions stored in the memory, and according to the instructions, perform the following operations: and detecting the change of the fan load of the outdoor unit, and determining the cleanliness of the condenser to indicate that the condenser is cleaned when the change meets a set condition.
The processor is further configured to perform the various steps described in the foregoing method embodiments.
The device that this embodiment provided can realize detecting and judging the fan load to the fan load of off-premises station. The method comprises the steps of detecting the fan load of the outdoor unit, representing the cleanliness of the condenser by the value of the fan load, judging the fan load, and determining that the condenser needs to be cleaned when the fan load meets set conditions.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. A method for detecting the cleanliness of a condenser of an outdoor unit of an air conditioner is characterized by comprising the following steps:
detecting a change in a fan load of the outdoor unit;
when the change meets a set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned;
further comprising: determining an operating mode of the air conditioner;
when the working mode is a refrigeration mode, executing a step of detecting the change of the fan load of the outdoor unit;
when the working mode is a heating mode, judging whether the condenser is in a frosting working condition, and if the condenser is not in the frosting working condition, executing a step of detecting the change of the fan load of the outdoor unit;
the change of the fan load is as follows: a change in a drive parameter of the fan;
the setting conditions are as follows: the driving parameter of the fan is increased to be larger than a set threshold value;
the method for determining the set threshold comprises the following steps:
controlling the air conditioner to enter a debugging mode;
reading the driving parameters of the fan in each reading period;
when the reading reaches the set times, calculating the average value of the driving parameters of the fan;
calculating the sum of the average value and a set adjustment amount as the set threshold;
the adjustment amount is related to at least one of a wind speed and a dust amount of an environment in which the air conditioner is located.
2. The method of claim 1, wherein said determining whether said condenser is in a frosting condition comprises:
judging whether the temperature of the condenser is greater than a first temperature set value and whether the ambient temperature of the outdoor unit is greater than a second temperature set value;
and when the temperature of the condenser is greater than the first temperature set value and the ambient temperature of the outdoor unit is greater than the second temperature set value, the condenser is not in a frosting working condition.
3. The method of claim 1, wherein the change satisfies a set condition comprising:
and the change meets the set condition corresponding to the current rotating speed of the fan.
4. The method of claim 1, wherein the method of determining the set threshold further comprises:
and after the air conditioner is controlled to enter a debugging mode, controlling the rotating speed of the fan to a set value, or controlling the rotating speed of the fan to a set interval.
5. The method of claim 1, wherein the method further comprises:
and sending early warning information for cleaning the condenser to an indoor unit of the air conditioner.
6. The utility model provides a detection device of air condensing units condenser cleanliness factor which characterized in that, the device includes:
the detection module is used for detecting the change of the fan load of the outdoor unit;
the determining module is used for determining that the cleanliness of the condenser indicates that the condenser is cleaned when the change meets a set condition;
the detection module is used for detecting the change of the fan driving parameter of the outdoor unit when the working mode of the air conditioner is a refrigeration mode or the working mode of the air conditioner is a heating mode and is not in a frosting working condition;
the judging module is used for judging whether the condenser is in a frosting working condition or not when the working mode of the air conditioner is a heating mode, and is also used for judging whether the change of the fan driving parameter of the outdoor unit meets the condition or not;
the control module is used for controlling the air conditioner to enter a debugging mode;
the reading module is used for reading fan driving parameters of the outdoor unit in each reading period;
the calculating module is used for calculating the average value of the fan driving parameters when the set times are read, and calculating the sum of the average value and the set regulating quantity to serve as a set threshold;
wherein the change of the fan load is: a change in a drive parameter of the fan;
the setting conditions are as follows: the driving parameter of the fan is increased to be larger than a set threshold value;
the adjustment amount is related to at least one of a wind speed and a dust amount of an environment in which the air conditioner is located.
7. The utility model provides a detection device of air condensing units condenser cleanliness factor which characterized in that, the device includes:
a memory to store instructions;
a processor configured to read the instructions, perform the following:
detecting a change in a fan load of the outdoor unit;
when the change meets a set condition, determining that the cleanliness of the condenser indicates that the condenser is cleaned;
further comprising: determining an operating mode of the air conditioner;
when the working mode is a refrigeration mode, executing a step of detecting the change of the fan load of the outdoor unit;
when the working mode is a heating mode, judging whether the condenser is in a frosting working condition, and if the condenser is not in the frosting working condition, executing a step of detecting the change of the fan load of the outdoor unit;
the change of the fan load is as follows: a change in a drive parameter of the fan;
the setting conditions are as follows: the driving parameter of the fan is increased to be larger than a set threshold value;
the method for determining the set threshold comprises the following steps:
controlling the air conditioner to enter a debugging mode;
reading the driving parameters of the fan in each reading period;
when the reading reaches the set times, calculating the average value of the driving parameters of the fan;
calculating the sum of the average value and a set adjustment amount as the set threshold;
the adjustment amount is related to at least one of a wind speed and a dust amount of an environment in which the air conditioner is located.
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| CN109974204B (en) * | 2019-04-01 | 2020-10-20 | 珠海格力电器股份有限公司 | Control method and device of air conditioner with defrosting condition correction function |
| CN112415295B (en) * | 2019-08-23 | 2022-12-23 | 青岛海尔空调器有限总公司 | Method for testing service life of aluminum electrolytic capacitor of air conditioner outdoor unit and air conditioner |
| CN113465096B (en) * | 2021-05-18 | 2022-09-09 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner and method and device for controlling operation of outdoor unit of multi-split air conditioner |
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| JPH10148378A (en) * | 1996-11-20 | 1998-06-02 | Sanyo Electric Co Ltd | Air conditioner |
| CN104110781B (en) * | 2013-11-21 | 2017-04-19 | 广东美的制冷设备有限公司 | Air conditioner and filth blockage detection control method and device therefor |
| CN203869255U (en) * | 2014-01-23 | 2014-10-08 | 珠海格力电器股份有限公司 | Defrosting control device |
| CN104596034A (en) * | 2015-01-05 | 2015-05-06 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN104807140A (en) * | 2015-04-27 | 2015-07-29 | 广东美的暖通设备有限公司 | Method and system for detecting dust retention and air conditioner adopting method |
| CN105465979A (en) * | 2016-02-16 | 2016-04-06 | 珠海格力电器股份有限公司 | Control method and device for automatic cleaning of outdoor unit of air conditioner and air conditioning system |
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