Control method and system of air conditioner under low-humidity heating condition

Abstract

The invention relates to the technical field of air conditioners, in particular to a control method and system of an air conditioner under the low-humidity heating condition. The control method and system of the air conditioner under the low-humidity heating condition aim at solving the problem that the frequency increase time of an existing air conditioner startup frequency increase control method is long and consequently the quick heating effect is poor and the lubrication effect is poor. The control method comprises the steps that the environment humidity is obtained; when the environment humidity is smaller than the set humidity, a compressor is preheated; after preheating of the compressor is completed, an outer fan is started and the speed of the outer fan is increased to the first target rotation speed; the compressor of the air conditioner is started while the speed of the outer fan reaches the first target rotation speed; and the frequency of the compressor is continuously increased stage by stage according to multiple set speeds. In this way, the frequency increase time of the compressor can be greatly shortened while normal oil return of the compressor is ensured, so that the purposes of quick heating and lubrication improvement are achieved, the comfort of the air conditioner is improved, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning control method and system under low-temperature heating conditions. 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 a more comfortable experience in winter, the existing air conditioners usually increase the frequency of the compressor to run at a higher frequency when they are first turned on. When the compressor is running, the refrigerant in the compressor will be quickly discharged and circulated in the piping system. During the circulation process, the lubricating oil will be discharged from the compressor together with the refrigerant and enter the pipeline. Only when the disch...

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 of poor rapid heating effect due to long up-frequency time and poor lubricating effect of the compressor when the ambient temperature is low Problem, the present invention provides a control method for air conditioners under low-temperature heating conditions, the control method includes the following steps:

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