Control method and device for relieving frosting of air conditioner outdoor unit

An air conditioner outdoor unit and control method technology, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating mode, etc., can solve problems such as frosting and icing, achieve precise control, and ensure energy efficiency in operation Effect
CN107940677APending Publication Date: 2018-04-20QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Publication Date
2018-04-20

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Abstract

The invention discloses a control method for relieving frosting of an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The control method comprises the following steps of acquiring the temperature of an outer coil pipe; determining the temperature change condition of the temperature of the outer coil pipe; and when the temperature of the outer coil pipe is higher than the outdoor dew point temperature and the temperature change rate of the temperature of the outer coil pipe is increased, controlling a frosting relieving device to be started. According to the control method for relieving frosting of the air conditioner outdoor unit, the operation state of the frosting relieving device is determined according to the change situation of the temperature ofthe outer coil pipe detected by a defrosting sensor, the change of the micro frosting condition of an air conditioner caused by factors such as external environment can be taken into consideration, and therefore the operation state of the frosting relieving device can be matched with the actual defrosting requirement, control is more accurate, and the operation energy efficiency of the air conditioner in severe cold and low temperature weather is guaranteed.
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Description

technical field

[0001] The invention relates to the technical field of air conditioners, in particular to a control method and device for slowing down frosting of an outdoor unit of an air conditioner. Background technique

[0002] With the improvement of people's living standards, air-conditioning equipment has also entered thousands of households. The use of household air conditioners and central air conditioners is becoming more and more common. Users have higher and higher requirements for the comfort of air conditioners. Some problems have gradually come out, one of which is the problem of frost and freezing of the outdoor unit when the air conditioner is running in severe cold weather.

[0003] When the air conditioner is running in a low-temperature region or a region with strong wind and snow, the condensed water on the outer surface of the condenser of the outdoor unit will drip onto the chassis. If there is icing problem, the condensed ice layer on the outdoor uni...

Claims

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