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Air conditioner defrosting control method

A control method and technology for an air conditioner, which are applied in the directions of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc., and can solve false defrosting, excessive defrosting, timing errors, etc. question

Active Publication Date: 2020-07-31
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this way, there will be errors in judging the timing of defrosting, and false defrosting or excessive defrosting will often occur.

Method used

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

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Embodiment Construction

[0020] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. 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. For example, although the various steps of the method of the present invention are described in a specific order in the present application, these orders are not limiting, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention. Follow the steps described.

[0021] Based on the timing problem of entering defrosting proposed in the background technology, the present invention proposes a defrosting control method for an air conditioner, aiming at enabling the air conditioner to enter the defrosting mode at a suitable defrosting time, avoiding false defrosting, defr...

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Abstract

The invention belongs to the technical field of air conditioners and particularly relates to a defrosting control method of the air conditioner. In order to more accurately judge the right defrosting moment, the defrosting control method of the air conditioner comprises the following steps that under the condition that the air conditioner is under the heating work condition, the coiler temperature of an outdoor unit is detected; the attenuation value of the coiler temperature of the outdoor unit is obtained once every first preset time interval; the difference values between the obtained attenuation values of the coiler temperature of the outdoor unit are calculated; the relative humidity of the position where the outdoor unit is located is obtained; based on the relative humidity of the position where the outdoor unit is located, according to the difference values between the attenuation values of the coiler temperature of the outdoor unit, whether the air conditioner is made to enter the defrosting manner or not is judged. Since the relative humidity influences frosting of the air conditioner, under the condition that the relative humidity is added as the judgment condition, when the difference values between the attenuation values of the coiler temperature of the outdoor unit is utilized to judge the right defrosting moment, the defrosting moment can be more accurately chosen, and the false defrosting phenomenon is effectively avoided.

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 lowered or raised through the high-pressure / low-pressure / gas / liquid state transition of the refrigerant between the circulation lines, that is, From the perspective of the indoor unit, the air conditioner is in cooling or heating mode. When the air conditioner is in the heating condition, the coil of the outdoor unit (evaporator) of the air conditioner is prone to frost, and the frost on the coil of the outdoor unit will cause the performance of the refrigeration system to decline, thereby affecting the heating effect of the air conditioner. Reduce the comfort of the indoor environment and affect the user experience. Therefore, when the air co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/41F24F11/64F24F11/65F24F110/22F24F110/10
Inventor 李喜武许文明张龙王飞
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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