Outdoor fan control method and system and air conditioner

Abstract

The invention provides an outdoor fan control method and system and an air conditioner and relates to the technical field of air conditioner control. The coil temperature of an outdoor unit is compared with preset temperature, whether compressor parameters meet first preset conditions or not is judged, and the current gear of a wind shield of an outdoor unit fan is compared with a preset gear, so that the gear of the wind shield of the outdoor unit fan is controlled to be dropped or raised by one gear for operation on the basis of the current gear of the wind shield at the interval of a preset regulation period. Through combined judgment of the coil temperature of the outdoor unit, the compressor parameters and the gear of the wind shield of the outdoor unit fan, the gear of the wind shield of the outdoor unit fan is controlled to be dropped by one gear for operation, and therefore the problems of a poor refrigeration effect and high power consumption caused by separate judgment of the environment temperature of the outdoor unit are avoided; meanwhile, if the coil temperature of the outdoor unit is higher than second preset temperature, the coil temperature can be easily lowered if the gear is raised for operation at the moment, and the refrigeration effect is good.

Description

technical field [0001] The invention relates to the technical field of air conditioning control, in particular to an outdoor fan control method, system and air conditioner. Background technique [0002] With the development of air-conditioning technology and the higher and higher requirements for the overall energy efficiency of air-conditioning, more and more DC motors are used for fans used in outdoor units of air-conditioning with the generalization of frequency conversion compressor technology to obtain better cooling system. Energy efficiency and more precise operational control. The DC motor can be designed with multiple gears according to the operating conditions of the system, so that the system can play a better effect and a safer system, so how to control the wind gear of the outdoor motor is becoming more and more important. At present, it is mainly used in the market to adjust the gear position of the air-conditioning fan according to the outdoor temperature. ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an outdoor fan control method, system and air conditioner to solve the technical problems of poor cooling effect and large power consumption caused by the above-mentioned method of controlling the windshield of the outdoor unit through the ambient temperature of the outdoor unit

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