Air conditioner and its humidity control method and device

Abstract

The invention discloses an air conditioner and a humidity control method and device thereof. The control method comprises the following steps: acquiring the humidity of the current indoor environment when the air conditioner runs in a refrigeration mode; judging whether the humidity of the current indoor environment is within a preset humidity range; if the humidity of the current indoor environment is not within the preset humidity range, acquiring a rotating speed adjusting amount of an indoor draught fan in the air conditioner according to the humidity of the current indoor environment; and controlling the current running frequency of a compressor in the air conditioner to be unchanged, and adjusting the current rotating speed of the indoor draught fan according to the rotating speed adjusting amount, so that the humidity of the current indoor environment is within the preset humidity range. According to the humidity control method, the evaporation temperature of an indoor heat exchanger can be adjusted by adjusting the rotating speed of the indoor draught fan, so that the ratio of the latent heat to the sensible heat of the refrigeration of the air conditioner is adjusted and then the relative humidity of indoor air is controlled, and thus the comfort of room air is effectively improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioner humidity control method, an air conditioner humidity control device and an air conditioner with the control device. Background technique [0002] Humidity, cleanliness and temperature are three important indicators to measure room comfort. Among these three important indicators, humidity is often ignored by the public, but in fact, humidity has a great impact on human health. [0003] In summer, the indoor and outdoor ambient temperature is high, and the relative humidity is often high. When the user turns on the cooling mode, since the surface temperature of the evaporator in the air conditioner is lower than the dew point temperature of the indoor air, the air conditioner will cool down during the cooling process. The moisture in the indoor air is condensed and precipitated, resulting in a decrease in the relative humidity of the indoor air, which in...

AI Technical Summary

Problems solved by technology

[0003] In summer, the indoor and outdoor ambient temperature is high, and the relative humidity is often high. When the user turns on the cooling mode, since the surface temperature of the evaporator in the air conditioner is lower than the dew point temperature of the indoor air, the air conditioner will cool down during the cooling process. The moisture in the indoor air is condensed and precipitated, resulting in a decrease in the relative humidity of the indoor air, which in turn makes the indoor air dry

[0004] At present, in order to control the humidity of the room, users usually buy a humidifier to increase the relative humidity in the room, thereby improving the comfort of the room. meet higher requirements

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