Air conditioner control method under refrigeration mode

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner control method under a refrigeration mode. The air conditioner control method aims to solve the problem that an existing air conditioner control method is poor in universality and not good in user experience. The air conditioner control method comprises the steps that an outdoor ambient temperature is obtained; the valve closing speed of an expansion valve is calculated according to a first fitting formula; the acceleration of an external blower is calculated according to a second fitting formula; the frequency rising speed of a compressor in the frequency rising stage is calculated according to a third fitting formula; the expansion valve is controlled to be closed to the target opening degree according to the valve closing speed; the external blower is controlled to be speeded up to the target rotating speed according to the acceleration; and preferably, when the expansion valve is closed to the target opening degree and the external blower is speeded up to the target rotating speed, the compressor is controlled to rise the frequency according to the frequency rising speed. Through the control mode, the air conditioner control method under the refrigeration mode can improve the universality of an air conditioner and improve the using experience of users.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner control method in cooling mode. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life, and this requirement is particularly evident in household appliances. Taking the air conditioner as an example, in order to meet the needs of users for rapid cooling and bring users a comfortable experience, the existing air conditioners generally make the compressor quickly increase in frequency to run at a higher frequency (such as frequency up to the maximum operating frequency). In the process of the compressor rapidly rising to high frequency, in order to ensure normal oil return, the compressor is usually forced to continue running at a certain or certain fixed frequency (oil return frequency) for a period of time, and continue to increase the frequency after the oil return is...

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 problems of poor universality and poor user experience existing in the existing air-conditioning control methods, the present invention provides a method for controlling the air-conditioning in cooling mode, the air-conditioning Including compressor, expansion valve and external fan, the control method includes:

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