Air conditioner defrosting control method

A control method and technology for air conditioners, applied in heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve problems such as low efficiency and single defrosting process, achieve rapid defrosting operation, reduce impact, and improve defrosting. The effect of efficiency
CN110836469AActive Publication Date: 2020-02-25ZHENGZHOU HAIER AIR CONDITIONER CO LTD +2
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZHENGZHOU HAIER AIR CONDITIONER CO LTD
Publication Date
2020-02-25

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Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner defrosting control method. In order to improve the defrosting efficiency of the air conditioner, the air conditioner defrosting control method, for an air conditioner with double fans arranged on an outdoor unit, comprises the following steps that after the air conditioner enters a defrosting mode, the upper fan and the lower fan are controlled to stop rotating; after a first set time, the temperature Ta at the upper part of an outer coil, the temperature Tb at the middle part of the outer coil and the temperature Tc at the lower part of the outer coil are detected correspondingly; and the upper fan and the lower fan are selectively controlled to reversely rotate / stop rotating according to at least one of Ta, Tb and Tc. The upper fan and / or the lower fan are / is selectively controlled to rotate reversely according to at least one of Ta, Tb and Tc, so that a frost layer is accurately blown off and the defrosting efficiency of the air conditioner is greatly 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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