Method and device for controlling air conditioner to be defrosted

An air conditioner and defrosting technology, which is applied in refrigeration and liquefaction, space heating and ventilation, heating and ventilation control systems, etc., can solve the problem of low defrosting efficiency, attenuation of heat exchange in air conditioning systems, and affecting the heat supply of indoor rooms and other problems, to achieve the effect of accurate defrosting start time and high defrosting efficiency

Active Publication Date: 2013-09-18
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Problems solved by technology

[0002] The indoor and outdoor heat exchangers of household air conditioners usually use finned copper tube heat exchangers. In the outdoor environment of low temperature and high humidity, if the air conditioner runs for heating for a long time, it is inevitable that there will be different thicknesses on the surface of the outdoor heat exchanger. Frost intensifies the attenuation of heat exchange in the air conditioning system and seriously affects the heat supply to indoor rooms
The existing technology generally judges whether to defrost the outdoor exchanger based on the temperature change of the outdoor evaporator, but the temperature of the evaporator needs to be sensed by the temperature sensing element. If the position of the temperature sensing element is unreasonable, it will be too The defrosting command is issued too early or too late, and the defrosting efficiency is low

Method used

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  • Method and device for controlling air conditioner to be defrosted
  • Method and device for controlling air conditioner to be defrosted
  • Method and device for controlling air conditioner to be defrosted

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Embodiment Construction

[0043] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the method for controlling defrosting of an air conditioner according to the present invention.

[0045] This embodiment proposes a method for controlling defrosting of an air conditioner, including:

[0046] Step S10, acquiring the outdoor ambient temperature in real time or at regular intervals;

[0047] A temperature sensor can be set on the outdoor unit, and the outdoor ambient temperature can be obtained in real time or periodically through the temperature sensor. Timing refers to a preset time interval, and the outdoor ambient temperature is obtained every other time in...

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Abstract

The invention relates to a method and device for controlling an air conditioner to be defrosted. The method comprises the following steps: a defrosting time interval is obtained according to the mapping relation between the outdoor and indoor environmental temperatures and the defrosting time interval; the air conditioner is controlled to be defrosted when the running time of the air conditioner between the end of last defrosting to the present is greater than or equal to the defrosting time interval obtained. Since the defrosting time interval is definite, the start time for defrosting is relatively accurate, and the defrosting efficiency is high.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for controlling defrosting of an air conditioner. Background technique [0002] The indoor and outdoor heat exchangers of household air conditioners usually use finned copper tube heat exchangers. In an outdoor environment with low temperature and high humidity, if the air conditioner runs for heating for a long time, it is inevitable that there will be different thicknesses on the surface of the outdoor heat exchanger. Frost will increase the attenuation of heat exchange of the air conditioning system and seriously affect the heat supply to indoor rooms. The existing technology generally judges whether to defrost the outdoor exchanger based on the temperature change of the outdoor evaporator, but the temperature of the evaporator needs to be sensed by the temperature sensing element. If the position of the temperature sensing element is unreasonable,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B47/00
Inventor 孙建平艾星
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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