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 the problems of single defrosting process and low efficiency, achieve rapid defrosting operation, reduce impact, and improve defrosting. The effect of efficiency

Active Publication Date: 2020-02-25
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Application Information

AI Technical Summary

Problems solved by technology

However, in the defrosting process, there is a lack of auxiliary means to speed up the defrosting efficiency, resulting in a single defrosting process and low efficiency

Method used

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  • Air conditioner defrosting control method
  • Air conditioner defrosting control method

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Embodiment Construction

[0018] In order to make the embodiments, technical solutions and advantages of the present invention more obvious, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0019] The defrosting control method of the present invention is mainly aimed at an air conditioner with a bypass defrosting circuit. Those skilled in the art can understand that the bypass defrosting circuit of the air conditioner is set between the compressor of the air conditioner and the outdoor unit, and is used to introduce the high-pressure gas discharged from the compressor into the o...

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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. The air conditioner defrosting control method aims at improving the defrosting efficiency of air conditioners and is proposed for air conditioners with bypass defrosting loops. The method comprises the following steps that when an air conditioner enters a bypass defrosting mode, the defrosting running time t and the exhaust temperature T are obtained; when t is larger than or equal to first preset time and T is smaller than or equal to a preset temperature,whether the condition for quitting defrosting is met or not is judged; and if not, the air conditioner is switched into a reverse circulation defrosting mode. According to the air conditioner defrosting control method, in the bypass defrosting mode, the defrosting efficiency of the air conditioner can be judged according to the defrosting running time and the exhaust temperature of the air conditioner, and the air conditioner is switched into reverse circulation defrosting once the defrosting efficiency becomes poor and a frost layer is not thoroughly removed yet so as to improve the defrosting efficiency of the air conditioner; and besides, an indoor draught fan can be intermittently controlled to rotate reversely, and the reverse blowing function of the outdoor draught fan is used for blowing off the frost layer quickly to improve the defrosting efficiency.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/61F24F11/65F25B47/02F24F140/20
CPCF24F11/42F24F11/64F24F11/61F24F11/65F25B47/025F24F2140/20F25B2347/02
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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