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

Abstract

The invention belongs to the technical field of air conditioners, particularly relates to an indoor unit anti-freezing control method for an air conditioner and the air conditioner and aims to solve the problems that according to an existing air conditioner, the freezing situation of an indoor unit is difficult to accurately judge through the temperature of an inner coil pipe, and moreover throughan existing point taking judgment method, accidental errors are prone to being caused. The indoor unit anti-freezing control method comprises the steps that when the air conditioner runs in a refrigerating mode, a plurality of draught fan current values of an indoor unit within at least one preset time frame are acquired; the draught fan current average value of the multiple draught fan current values in each preset time frame is worked out; and according to the draught fan current average values, whether the air conditioner needs to enter an indoor unit anti-freezing mode or not is judged. According to the indoor unit anti-freezing control method for the air conditioner, the judgment accuracy rate is effectively increased by adopting the draught fan current average values of the indoor unit as basic parameters, even when the draught fan current fluctuates by accident, no great effect is caused to the draught fan current average values, and therefore the misjudgment phenomenon, causedby the accidental fluctuation of the draught fan current, of the air conditioner is effectively avoided.

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...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that it is difficult to accurately judge the freezing situation of the indoor unit through the temperature of the inner coil of the existing air conditioner, and the existing method of point selection is prone to accidental errors, The present invention provides an indoor unit anti-freezing control method for an air conditioner. The indoor unit anti-freezing control method includes: when the air conditioner is in cooling operation, obtaining multiple data of the indoor unit within at least one preset period fan current value; calculate the fan current average value of the plurality of fan current values ​​in each preset period; judge whether to make the air conditioner enter the indoor unit anti-freezing mode according to the fan current average value;

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