Air conditioner control method and device and air conditioner

Abstract

The invention provides an air conditioner control method and device and the air conditioner. The control method is used when the air conditioner is in a heating mode, and the method comprises the following steps that when the outdoor temperature is in a preset temperature range, whether operation parameters and environmental parameters of the air conditioner meet preset anti-frosting judgment conditions or not is judged; when the anti-frosting judgment conditions are met, whether the indoor temperature is not lower than the preset lowest indoor temperature or not, and / or whether the indoor unit tube temperature is not lower than the preset lowest indoor unit tube temperature or not are judged; and when the indoor temperature is not lower than the preset lowest indoor temperature and / or theindoor unit tube temperature is not lower than the preset lowest indoor unit tube temperature, the operation frequency of a compressor is adjusted according to the operation parameters and the environmental parameters of the air conditioner. Thus, frosting is inhibited, the operation frequency of the compressor is adjusted, meanwhile, the lowest temperature of the indoor temperature and / or the indoor unit tube temperature are ensured, then the temperature change experienced by a user is prevented from being too large, and the user experience is considered.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner control method, device and air conditioner. Background technique [0002] As an efficient winter heating method, air source heat pumps are being promoted on a large scale due to their high heating efficiency and environmental protection. However, during the operation of the air source heat pump, when the ambient temperature is low. There will be frost on the surface of the fins of the outdoor heat exchanger. As the heat pump continues to work, the frost layer will gradually thicken. The frost layer increases the thermal resistance and hinders the air flow between the fins, which significantly reduces the heating effect of the heat pump. . As an important part of the air source heat pump technology, the defrosting function and defrosting of the heat pump are of great significance to the efficient operation of the heat pump unit. The heat pump defrosting techno...

AI Technical Summary

Problems solved by technology

But it should be clear that frosting can only be suppressed under a certain working environment. When the outer ring is lower than 0°C and the humidity is slightly high, when the heat pump product configuration is certain (two device parameters, Valves, compressors and other basic configurations), the external fan runs to the highest frequency, and it is difficult for the anti-frost technology to have room to play. In the operating conditions close to and greater than 0°C, the anti-frost technology has the possibility of practical application

In the prior art, the indoor temperature is often lowered when the outdoor unit is suppressed from frosting, resulting in poor user experience.

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