Air conditioner and control method and device thereof

Abstract

The invention discloses an air conditioner and a control method and device thereof. The method comprises the following steps: after the air conditioner is started, obtaining a target temperature set by a user, and acquiring an indoor environmental temperature and an indoor environmental humidity in real time; determining whether the current indoor environmental humidity is smaller than the presethumidity; if the current indoor environmental humidity is greater than or equal to the preset humidity, controlling the air conditioner to operate in a preset maximum dehumidification output or maximum dehumidification mode; if the current indoor environmental humidity is smaller than the preset humidity, controlling the air conditioner to perform refrigeration according to the preset maximum output capability; during the refrigeration operation of the air conditioner, determining whether the difference between the current indoor environmental temperature and the target temperature is smallerthan a first preset temperature difference; and if the difference between the current indoor environmental temperature and the target temperature is smaller than the first preset temperature difference, performing down-conversion control on the air conditioner. According to the control method, a good cooling effect can be achieved in a short time, energy consumption can be reduced, and energy saving is achieved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner control method, an air conditioner control device and an air conditioner. Background technique [0002] At present, the existing air conditioner control method mainly adopts the indoor temperature setting control method. Specifically, such as figure 1 As shown, the operating state of the air conditioner is adjusted according to the set indoor target temperature, or the difference between the set temperature and the indoor temperature, so that the temperature of the entire room reaches the set value. When the set temperature is reached, it will be shut down for processing, and if it is not reached, it will operate according to the set rules to ensure that the room temperature fluctuates in a small range around a set temperature center line. [0003] For a cooling system with variable flow, usually the user will give priority to a strong capacity output to obtai...

AI Technical Summary

Problems solved by technology

However, under the same refrigerant flow rate and indoor working conditions, after increasing the indoor air side air volume, the evaporation temperature will increase, the ratio of sensible heat to latent heat will increase, and the dehumidification capacity will decrease

Since the cooling operation of the air conditioner is accompanied by dehumidification, when the room temperature drops, the capacity output will gradually decrease, resulting in a slower cooling rate

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