Control method for air conditioner

Abstract

The invention relates to the technical field of air conditioners, in particular to a control method for an air conditioner. The control method for the air conditioner aims at solving the problems of low universality and poor user experience in an existing control method for the air conditioner. For the purpose, the control method comprises the following steps: calculating the temperature difference between an indoor environment temperature and a set temperature; calculating the valve closing speed of an expansion valve according to a first fitting formula; calculating the frequency-increasingspeed of a compressor in a frequency-increasing stage according to a second fitting formula; controlling the expansion valve to be closed to reach a target opening degree according to the valve closing speed; and controlling the compressor to carry out frequency increasing according to the frequency-increasing speed while the expansion valve is closed to reach the target opening degree according to the valve closing speed. Through the control manner, the control method for the air conditioner is capable of improving the universality of the air conditioner and improving the use experience of auser.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner control method. 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 an air conditioner as an example, in order to meet the needs of users for rapid cooling / heating and thus bring users a comfortable experience, the existing air conditioners usually increase the frequency of the compressor to a higher frequency ( such as upscaling 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 stable . However, the...

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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 in the existing air-conditioning control methods, the present invention provides an air-conditioning control method, the air-conditioning includes a compressor , an expansion valve and an external fan, the control method includes:

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