Air conditioner start control method

Abstract

The invention relates to the technical field of air conditioners, in particular to a method for controlling the start-up of an air conditioner. The present invention aims to solve the problems of poor universality and poor user experience existing in the existing air conditioner start-up control method. For this purpose, the start-up control method of the present invention includes: obtaining the rotational speed of the internal fan; calculating the closing speed of the expansion valve according to the first fitting formula; calculating the acceleration of the external fan according to the second fitting formula; Combine the formula to calculate the frequency increase speed of the compressor in the frequency increase stage; control the expansion valve to close the valve at the valve closing speed to the target opening degree; control the external fan to increase the speed to the target speed according to the acceleration; preferably, close the expansion valve to the target speed When the opening degree is set and the speed of the outdoor fan reaches the target speed, the compressor is controlled to increase frequency according to the frequency increase speed. Through the above control method, the start-up control method of the air conditioner of the present invention can improve the universality of the air conditioner and improve the user experience.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling the start-up of an air conditioner. 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 heating and thus bring users a comfortable experience, when the existing air conditioner is just turned on, the frequency of the compressor is generally increased to a higher frequency (such as frequency 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 a...

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 in the existing air-conditioning start-up control methods, the present invention provides a start-up control method for air-conditioners, the air-conditioner includes Compressor, expansion valve, external fan, internal fan, the start-up control method includes:

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