Defrosting control method 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 low efficiency and single defrosting process, achieve fast defrosting operation, ensure user experience, and reduce the effect of impact
CN110836468AInactive Publication Date: 2020-02-25QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Publication Date
2020-02-25
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to a defrosting control method of an air conditioner. In order to improve the defrosting efficiency of the air conditioner, the provided defrosting control method of the air conditioner is proposed for the air conditioner with a bypass defrosting circuit, the method includes the following steps that when theair conditioner enters into a defrosting mode for the n time, heating operation time t<n> of the air conditioner is obtained; if the t<n> is greater than first set time, the air conditioner enters into a reverse cycle defrosting mode, and otherwise, the air conditioner enters into a bypass defrosting mode; and if the air conditioner enters into the reverse cycle defrosting mode when the air conditioner enters into the defrosting mode for the n time, the air conditioner enters the bypass defrosting mode when the air conditioner enters into the defrosting mode for the (n+1) time andthe (n+2) time, wherein n is equal to 3m+1, and m is an integer greater than or equal to 0. According to the defrosting control method, the best defrosting mode can be accurately selected, an outdoor fan can further be controlled to reverse at intervals, and a frost layer is blown down rapidly by using the blowback effect of the outdoor fan to improve the defrosting efficiency.
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Description

technical field

[0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner defrosting control method. Background technique

[0002] As a device that can adjust the indoor ambient temperature, the air conditioner works on the principle that the indoor ambient temperature is reduced or increased by the refrigerant passing through the circulation pipeline through high-pressure / low-pressure / gas / liquid state transitions, that is, from From the perspective of the indoor unit, the air conditioner is in cooling or heating mode. When the air conditioner is in heating operation, if the temperature of the outdoor coil is too low under certain humidity conditions, it will cause frosting, and the frosting of the outdoor coil will reduce the heat exchange efficiency of the outdoor heat exchanger and affect the cooling performance of the air conditioner. The thermal effect reduces the comfort of the indoor environment and affec...

Claims

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