Method for controlling intelligent defrosting of air conditioner

A control method and air conditioner technology, applied in heating and ventilation control systems, refrigerators, heating methods, etc., can solve problems such as misdefrosting, reducing the effective time of air conditioner heating operation, etc., to increase the effective time, reduce Effect of defrosting operation and increasing heating capacity

Active Publication Date: 2013-08-21
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology

[0003] Defrosting is carried out according to the temperature of the outdoor heat exchanger, which is prone to wrong defrosting operation
In order to solve the above problems, there has been a method of controlling the defrosting by judging the temperature of the indoor heat exchanger, as disclosed in the Chinese patent No. 02149634. The method of controlling the defrosting by the temperature of the heat exchanger still has unnecessary defrosting operation, thereby reducing the effective time of the air conditioner heating operation

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  • Method for controlling intelligent defrosting of air conditioner

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Embodiment Construction

[0025] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The invention provides a control method for intelligent defrosting of an air conditioner, referring to figure 1 , in an embodiment of the present invention, the control method includes:

[0027] S1, set the indoor ambient temperature sensor and the indoor heat exchanger sensor, detect the indoor ambient temperature T1 through the indoor ambient temperature sensor, and detect the indoor heat exchanger temperature T2 through the indoor heat exchanger sensor,

[0028] S2, detecting the continuous running time M of the compressor of the air conditioner, and judging whether the continuous running time M of the compressor is greater than the set time M1;

[0029] S3, comparing the indoor heat exchanger temperature T2 with the indoor ambient temperature T1, judging whether the temperature difference ΔT between the in...

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Abstract

The invention discloses a method for controlling intelligent defrosting of an air conditioner. The method comprises the step of detecting indoor environment temperature T1, temperature T2 of an indoor heat exchanger and continuous operation time M of a compressor. When the temperature T2 of the indoor heat exchanger is less than setting temperature T4, a temperature difference delta T between the temperature T2 of the indoor heat exchanger and the indoor environment temperature T1 is less than setting temperature T3, the continuous operation time M of the compressor is greater than or equal to setting time M1, and a drop-out value of the temperature difference delta T is greater than or equal to a setting value TS1 or time t used every time when the temperature difference delta T drops by a setting value TS2 is in a range of setting time, the air conditioner operates to defrost. Due to the fact that the relationship of the temperature of the indoor heat exchanger and the indoor environment temperature is detected, the frosting conditions of an outdoor heat exchanger are judged so that whether defrosting is carried out or not can be selected, accordingly, unnecessary defrosting operation is reduced and heating capacity of the air conditioner is increased.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for intelligent defrosting of an air conditioner. Background technique [0002] After the existing heat pump air conditioner is in operation, the outdoor heat exchanger will frost, thereby affecting the heating efficiency of the air conditioner. Therefore, the air conditioner needs to be defrosted after a certain period of heating operation. The traditional defrosting method is to judge the frosting condition of the outdoor heat exchanger by setting a temperature sensor in the outdoor heat exchanger, and start the defrosting operation according to the frosting condition. [0003] Defrost is performed according to the temperature of the outdoor heat exchanger, which is prone to misoperation. In order to solve the above problems, there has been a method of controlling defrosting by judging the temperature of the indoor heat exchanger, as disclosed in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/02F24F11/02
Inventor 吴加生李大振李炜征文邦春
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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