Defrost control method for air-conditioner

A control method and air conditioner technology, applied to heating and ventilation control systems, refrigerators, heating methods, etc., can solve problems such as timing errors, excessive defrosting, and false defrosting

Inactive Publication Date: 2017-08-22
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Summary
  • 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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  • Defrost control method for air-conditioner
  • Defrost control method for air-conditioner
  • Defrost control method for air-conditioner

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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 specifically relates to a defrost control method for air-conditioner. In order to judge an opportunity to defrost more accurately, the defrost control method for the air-conditioner comprises the following steps that the temperature of an outdoor unit pipe coil is detected under the condition that an air conditioner is in an operating condition of heating; the attenuation degree of the temperature of the outdoor unit pipe coil within a first preset time is acquired; the relative humidity of the position of an outdoor unit is acquired; and based on the relative humidity of the position of the outdoor unit, according to the attenuation degree of the temperature of the outdoor unit pipe coil, whether the air conditioner enters a defrost mode or not is judged. Because the relative humidity affects frosting of the air conditioner, thus, on the condition that the relative humidity is added as a judging condition, the frost quantity of the outdoor unit can be judged more accurately according to an attenuation value of the temperature of the outdoor unit external pipe coil, and therefore the defrost opportunity can be selected more accurately.

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 Applications(China)
IPC IPC(8): F24F11/00F25B39/02F25B47/02
CPCF25B39/02F25B47/02F25B2347/02F25B2400/0409F25B2700/02F24F11/30F24F11/42F24F11/62F24F11/64F24F11/65F24F2110/22
Inventor 许文明王飞付裕
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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