Indoor unit anti-freezing control method for air conditioner and air conditioner

A control method and indoor unit technology, applied in heating and ventilation control systems, mechanical equipment, heating and ventilation safety systems, etc., can solve problems such as difficult indoor units, accidental errors, etc., to avoid misjudgment, improve accuracy, and improve The effect of accuracy
CN108317668AActive Publication Date: 2018-07-24QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Publication Date
2018-07-24

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Abstract

The invention belongs to the technical field of air conditioners and particularly relates to an indoor unit anti-freezing control method for an air conditioner and the air conditioner. By means of theindoor unit anti-freezing control method for the air conditioner and the air conditioner, the problems that it is difficult for an existing air conditioner to accurately judge the freezing conditionof an indoor unit based on the temperature of an inner coiled pipe, and accidental errors are prone to occurring in an existing point sampling judgment method are solved. The indoor unit anti-freezingcontrol method comprises the steps that when the air conditioner is in a refrigeration working condition, the current average values of a primary indoor fan are obtained every other preset time interval; the degree of attenuation of every two adjacent current average values of the indoor fan is figured out; and whether to set the air conditioner to be in an indoor unit anti-freezing mode is judged according to the degree of attenuation. The current average values of the indoor fan are adopted as foundation parameters, judgment is conducted according to the degree of attenuation of every two adjacent current average values of the indoor fan, accordingly misjudgment caused by the fluctuation phenomenon of fan currents is effectively avoided for the air conditioner, and then judgment accuracy is effectively improved.
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Description

technical field

[0001] The invention belongs to the technical field of air conditioners, and in particular relates to an indoor unit anti-freezing control method for the air conditioner and the air conditioner. Background technique

[0002] With the continuous improvement of people's living standards, people have also put forward higher and higher requirements for the living environment. In order to maintain a comfortable ambient temperature, air conditioners have become an essential device in people's lives. Generally, an air conditioner includes an indoor unit, an outdoor unit, and a circulation loop for connecting the indoor unit and the outdoor unit. The heat exchange medium in the air conditioner continuously exchanges heat between the outdoor unit and the indoor unit through the circulation loop, thereby achieving a change in room temperature. Effect. Taking the cooling operation of the air conditioner as an example, the coil of the indoor unit is always at a low tem...

Claims

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