Control method and system for air conditioner under high-humidity heating working condition

Abstract

The invention relates to the technical field of air conditioners, in particular to a control method and system for air conditioner under a high-humidity heating working condition. In order to solve the problems that a start-up frequency boosting control method for an existing air conditioner is poor in quick heating effect as a result of long frequency boosting time and an outdoor unit is liable to frost when environmental humidity is relatively great, the control method comprises the following steps: obtaining ambient humidity; starting up an outer fan when the ambient humidity is greater than set humidity; increasing speed to first target rotation speed; regulating opening degree of an expansion valve to first target opening degree while or before or after the outer fan starts to increase speed; starting a compressor when the outer fan and / or the expansion valve reaches a set condition; and enabling the compressor to continuously boost frequency in stages according to multiple set speeds. In this way, frequency boosting time of the compressor can be greatly shortened while the compressor can be guaranteed to normally return oil, so that the purposes of quickly heating and delaying frosting are achieved, and therefore, the comfort of the air conditioner is improved, 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 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 discharged lubricating oil re...

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 in the existing air-conditioning start-up frequency increase control method that the rapid heating effect is poor due to the long frequency increase time, and the outdoor unit is easy to frost when the ambient humidity is high , the present invention provides a control method of an air conditioner under high-humidity heating conditions, the control method comprising the following steps:

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