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Defrosting control method of air conditioner

A control method and air conditioner technology, applied to heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve problems such as low efficiency and single defrosting process

Active Publication Date: 2020-02-25
CHONGQING 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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  • Defrosting control method of air conditioner
  • Defrosting control method of air conditioner

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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 a defrosting control method of an air conditioner. In order to improve the defrosting efficiency of the air conditioner, the defrosting control method of the air conditioner is provided, and the defrosting control method aims at the air conditioner with a bypass defrosting loop. The method includes the steps that when the air conditioner needs to get into a defrosting manner, an outdoor fan is controlled to stop rotating, and the bypass defrosting loop is switched on; after the outdoor fan stops rotating for a first set time, the outdoor fan is controlled to reversely rotate for a second set time; after the outdoor fan reversely rotates for the second set time, the outdoor fan is selectively controlled to reversely rotate for the second set time again according to at least one of t<upper>, t<middle> and t<lower>; and when the outdoor fan reversely rotates, the bypass defrosting loop is switched off, and after the outdoor fan reversely rotates for the second set time, the bypass defrosting loop is switched on after the time t, wherein the t is determined according to the t<upper>, the t<middle> and the t<lower>. The reverse rotation time of the outdoor fan can be precisely controlled, 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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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 CHONGQING HAIER AIR CONDITIONER CO LTD
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