Defrosting control method for air conditioner

A control method and air conditioner technology, applied to heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve the problems of low efficiency and single defrosting process, achieve fast defrosting operation, reduce impact, and improve defrosting efficiency effect
CN110836464AInactive 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 in particular relates to a defrosting control method for an air conditioner. In order to improve the defrosting efficiency of theair conditioner, the defrosting control method for the air conditioner with a bypass defrosting loop comprises the following steps of acquiring an outer coil temperature Toil of the air conditioner when the air conditioner needs to enter into a defrosting mode; entering a bypass defrosting mode or a reverse cycle defrosting mode of the air conditioner selectively according to the Toil; when the air conditioner enters into the bypass defrosting mode, opening the bypass defrosting loop all the way, and controlling an outdoor fan to reverse for a second set time at every first setting time. The defrosting control method not only can select the optimal defrosting mode accurately, but also can control the outdoor fan to reverse intermittently to blow off a frost layer quickly by means of back blowing action of the outdoor fan, so that the defrosting efficiency is improved.
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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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