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Detection method of air conditioner greasy blockage breakdown and air conditioner

A detection method and air conditioner technology, which is applied to the detection of oil plugging faults of air conditioners. In the field of air conditioners, it can solve problems such as difficult detection of oil plugging faults, improve the comfort of use, avoid the decline in air conditioner capacity and power, and ensure The effect of service life

Inactive Publication Date: 2018-05-18
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method for detecting oil plugging faults of an air conditioner and an air conditioner, aiming at solving the problem that the oil plugging faults of existing air conditioners are difficult to detect

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  • Detection method of air conditioner greasy blockage breakdown and air conditioner
  • Detection method of air conditioner greasy blockage breakdown and air conditioner
  • Detection method of air conditioner greasy blockage breakdown and air conditioner

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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] figure 1 It is a schematic diagram of the cycle principle of the air conditioner 100 of the present invention. Wherein, the refrigerant used by the air conditioner 100 is a flammable refrigerant, and the air conditioner 100 includes a compressor 110 , a four-way valve 120 , an outdoor heat exchanger 130 , an expansion valve 140 and an indoor heat exchanger 150 in sequential circulation. Wherein, the flammable refrigerant may be R290 refrigeran...

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Abstract

The invention discloses a detection method of an air conditioner greasy blockage breakdown and an air conditioner. In the detection method, when it is confirmed that the air conditioner is in a non-defrosting working mode, a current first power value of a compressor is obtained, and whether the first power value is greater than a preset threshold value or not is judged; and when the first power value is smaller than or equal to the threshold value, the greasy blockage breakdown is confirmed. According to the technical scheme of the detection method, by judging the relative magnitude of the power value of the compressor after defrosting is conducted and the preset threshold value, an expansion valve greasy blockage phenomenon caused by improving of the viscosity of a flammable refrigerant after low-temperature defrosting is conducted on the air conditioner can be timely detected, reducing of the air conditioner capability and the power caused by no-load running of the compressor is avoided, the service life of the compressor is ensured, meanwhile the using comfort of the air conditioner with the novel refrigerant is further improved, and reference bases are further provided for enabling novel compressor machine oil to be better matched with the novel refrigerant in future.

Description

technical field [0001] The invention relates to the field of household electrical appliances, in particular to a method for detecting oil plugging faults of an air conditioner and an air conditioner. Background technique [0002] At present, in the field of air-conditioning and refrigeration technology, R410a refrigerant is mostly used to replace R22 refrigerant, and its advantages are obviously reflected in inverter air conditioners. However, due to the high GWP (Global Warming Potential) of R410a refrigerant, Under the background that the global warming effect is getting worse and countries around the world are paying more and more attention to addressing global climate change, it will be gradually eliminated. Therefore, at present, we are more focused on researching low-GWP refrigerants represented by R32 refrigerant and R290 refrigerant, especially for R290 refrigerant, which has almost no pollution. At the same time, the research and development of corresponding compres...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/49F24F140/50
Inventor 杨瑞林刘旭
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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