Air conditioner defrosting control method and device

A control method and air-conditioning technology, applied in control input involving air characteristics, space heating and ventilation control input, space heating and ventilation, etc., can solve problems such as temperature error, low control accuracy, and no solution proposed

Inactive Publication Date: 2018-05-04
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the purpose of defrosting can be achieved in this way, there are often errors in the temperature detected by the temperature sensor of the outer tube.

Method used

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  • Air conditioner defrosting control method and device
  • Air conditioner defrosting control method and device
  • Air conditioner defrosting control method and device

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[0040] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. Here, the exemplary embodiments of the present invention and the description thereof are used to explain the present invention, but not as a limitation to the present invention.

[0041] Considering that the existing defrost control method generally uses the relationship between the temperature of the outer tube, the temperature of the outer ring and the time to determine whether a defrost is required. Although the purpose of defrosting can be achieved in this way, the temperature detected by the outer tube temperature sensor often has errors. As a condition for defrosting control, the problem of low control accuracy often occurs. However, it is impossible to detect whether the unit has frost, and it is prone to defrost without frost.

[0042] In this examp...

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Abstract

The invention provides an air conditioner defrosting control method and device. The air conditioner defrosting control method comprises the steps that under the condition that an air conditioner unitis in the heating mode, the saturation temperature corresponding to the low pressure of the unit is detected; and under the condition that the saturation temperature corresponding to the low pressureis lower than a preset frosting temperature, according to the external environment temperature of the air conditioner unit and the saturation temperature corresponding to the low pressure, whether defrosting is conducted or not is determined. By the adoption of the air conditioner defrosting control method, the technical problem that by the adoption of an existing defrosting control manner, the precision is low is solved, and the purpose of effectively improving the defrosting control precision is achieved; besides, it is avoided that defrosting is conducted once the saturation temperature islower than the preset frosting temperature, whether defrosting is needed or not is further confirmed, and the problem that defrosting is conducted under the condition of no frost is avoided.

Description

technical field [0001] The present invention relates to the technical field of equipment control, in particular to an air conditioner defrosting control method and device. Background technique [0002] For the air conditioning unit, during the heating process of the air conditioning unit, if there is too much frost on the outdoor condenser, it will directly affect the heating effect of the air conditioning unit. [0003] At present, in order to defrost the condenser, it is generally determined whether defrosting is required based on the relationship between the temperature of the outer tube, the temperature of the outer ring, and time. Although the purpose of defrosting can be achieved in this way, the temperature detected by the temperature sensing bulb of the outer tube often has errors. As a condition for defrosting control, the problem of low control accuracy often occurs. [0004] Aiming at this problem, no effective solution has been proposed yet. Contents of the in...

Claims

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Application Information

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IPC IPC(8): F24F11/00F24F11/89F24F110/10
Inventor 王瑞强李鹏飞谭锋
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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