Air conditioner control method and system under low-temperature and high-humidity heating working condition

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and system under a low-temperature and high-humidity heating working condition. Theproblems that in an existing air conditioner starting-up and frequency-boosting control method, the rapid heating effect is poor, and the lubricating effect is poor are solved. The air conditioner control method comprises the steps that the environment temperature and the environment humidity are obtained; when the environment temperature is lower than a set temperature and the environment humidity is higher than set humidity, preheating is conducted on a compressor; after preheating is completed, the opening degree of an expansion valve is adjusted to be a first target opening degree; the compressor of an air conditioner is started in the adjusting process; and staged continuous frequency-boosting is conducted on the compressor according to a plurality of set speeds. According to the airconditioner control method and system under the low-temperature and high-humidity heating working condition, staged continuous frequency-boosting is conducted on the compressor at different frequency-boosting speeds after the compressor is started, the frequency-boosting time of the compressor can be greatly shortened while normal oil returning of the compressor is ensured, the purposes of rapidheating and lubrication improving are achieved, the comfort of the air conditioner is promoted, and the 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 and high humidity 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, the existing air conditioner generally makes the compressor quickly increase to a higher frequency when it is 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 discharge...

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 rapid heating effect and poor lubrication effect of the compressor when the ambient temperature is low due to the long up-frequency time in the existing air-conditioning up-frequency control method , the present invention provides a control method of an air conditioner under low-temperature and high-humidity heating conditions, the control method comprising the following steps:

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