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Air-conditioner defrosting control method

A control method and air conditioner technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as false defrosting, timing error judgment, excessive defrosting, etc.

Active Publication Date: 2017-09-05
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

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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 an air-conditioner defrosting control method. In order to judge an opportunity for defrosting more accurately, the air-conditioner defrosting control method comprises the following steps that under the circumstance that an air-conditioner is under a heating working condition, temperature of an outdoor unit coiler is detected; attenuation values of the temperature of the outdoor unit coiler are obtained every first preset time; a difference value between the attenuation values of the temperature of the outdoor unit coiler is calculated and obtained; and whether the air-conditioner enters a defrosting mode or not is judged according to the difference value between the attenuation values of the temperature of the outdoor unit coiler. According to the method, by obtaining the difference value between the attenuation values of the temperature of the outdoor unit coiler, the frosting level of the outdoor unit coiler can be judged more accurately, thus, the defrosting opportunity can be selected more accurately, and the false defrosting phenomenon caused by instant frosting can be 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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IPC IPC(8): F24F11/00
Inventor 许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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