Air conditioner defrosting control method

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 rapid defrosting operation, reduce the number of blowbacks, and accurately The effect of control
CN110836492AActive Publication Date: 2020-02-25QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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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

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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. For improving defrosting efficiency of the air conditioner with a bypass defrosting loop, the air conditioner defrosting control method includes the following steps: when the air conditioner needs to entre a defrosting mode, acquiring temperature Toil of an outer coil of the air conditioner; selectively enabling the air conditioner to enter a bypass defrosting mode or a reverse cycle defrosting mode according to the temperature Toil; when the air conditioner enters the bypass defrosting mode, intermittently controlling the bypass defrosting loop to open / close, and controlling an outdoor draught fan to reverse for set time under the closing state of thebypass defrosting loop; and confirming opening time of the bypass defrosting loop and the set time according to the following mode: acquiring indoor environment temperature Troom; and confirming theopening time of the bypass defrosting loop and the set time according to the temperature Troom. The air conditioner defrosting control method can accurately select the optimum defrosting mode and efficiently blow off molten frost layers, and greatly improves defrosting efficiency of the air conditioner.
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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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