Control method for reverse circulation defrosting of air conditioner
A control method and technology for air conditioners, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as influence, and achieve the effect of increasing service life
Inactive Publication Date: 2016-11-23
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] Based on this, it is necessary to solve the problem of affecting the indoor temperature and the abnormal noise of the indoor unit in the defrosting process of the current air conditioner, and provide a system that has little influence on the indoor temperature and does not cause abnormal noise due to thermal expansion and cold contraction of the indoor unit. Noisy Air Conditioner Reverse Cycle Defrosting Control Method
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the method for controlling the reverse cycle defrosting of an air conditioner according to the present invention will be further described in detail through the following examples and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] see figure 1 As shown, the first embodiment of the air conditioner reverse cycle defrosting control method of the present invention, the air conditioner includes a compressor 100, a four-way valve 200, an outdoor heat exchanger 300, a throttling device 400, an indoor heat exchanger 500 and a refrigerant The pipeline 600, the compressor 100, the outdoor heat exchanger 300, the throttling device 400 and the indoor heat exchanger 500 are sequentially connected through the refrigerant pipeline...
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The invention provides a control method for reverse circulation defrosting of an air conditioner. The air conditioner comprises a compressor, a four-way valve, an outdoor heat exchanger, a throttling device, an indoor heat exchanger and a refrigerant pipeline, wherein the compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger sequentially communicate with one another through the refrigerant pipeline. The defrosting control method comprises the following steps: when defrosting begins, the four-way valve is switched to a refrigeration mode, a refrigerant output by the compressor enters the outdoor heat exchanger, and after defrosting the outdoor heat exchanger, the refrigerant maintains an original state and returns to the compressor. According to the control method, the refrigerant is not throttled and depressurized in the system, so that the refrigerant does not absorb indoor heat in the indoor heat exchanger, and the influence on the indoor temperature is relatively low; and the indoor heat exchanger does not generate abnormal sound due to heat expansion and cold contraction, and the service life of the air conditioner is prolonged.
Description
technical field [0001] The invention relates to the technical field of an air conditioner control method, in particular to an air conditioner reverse cycle defrosting control method. Background technique [0002] The frosting and defrosting problem of air source heat pump system is a key technical problem of air conditioning, which has a significant impact on heating performance and comfort. When the outdoor ambient temperature is lower than 5°C, the air conditioner is prone to frost and its performance rapidly decays, resulting in insufficient heating capacity. At present, air conditioners generally adopt conventional reverse cycle defrosting. During the defrosting process, the air conditioner operates in cooling mode, and the temperature of the inner tube of the evaporator drops rapidly to below -30°C, absorbing a large amount of heat from the room, and rapidly reducing the temperature in the room by 6-8°C. , which seriously affects the comfort of users, and with the cont...
Claims
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IPC IPC(8): F25B47/00
CPCF25B47/025F25B2347/02
Inventor 王明剑江倩王春高玉平袁前钟振棠
Owner GREE ELECTRIC APPLIANCES INC