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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

Active Publication Date: 2020-02-25
ZHENGZHOU HAIER AIR CONDITIONER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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
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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 the air conditioner with dual blowers installed on the outdoor unit. Specifically, the outdoor unit of the air conditioner targeted by the present invention includes an upper fan and a lower fan, and the upper fan and the lower fan can rotate forward or reverse independently.

[0020] refer to figure 1 , figur...

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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.

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
CPCF25B47/025F25B2347/02F24F11/42F24F11/61F24F11/64F24F11/65F24F2140/20
Inventor 许文明罗荣邦
Owner ZHENGZHOU HAIER AIR CONDITIONER CO LTD
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