Air conditioner and control method and device thereof

Abstract

The invention provides an air conditioner and a control method and device thereof and relates to the field of condensation-preventing control over air conditioners. The control method and device of the air conditioner can select an accurate moment to execute condensation-resisting operation so as to improve user experience. The control method comprises the steps that firstly, when the air conditioner performs refrigeration operation, first operation parameters of the air conditioner are obtained, wherein the first operation parameters comprise the first relative humidity in a room corresponding to the air conditioner and a rotation speed of an indoor fan of the air conditioner; the accumulative operation duration or continuous operation duration of a compressor of the air conditioner underthe condition that it is determined that the first operation parameters meet condensation conditions is obtained, wherein the condensation conditions comprise that the first relative humidity is larger than a preset relative humidity, and the rotation speed of the indoor fan is smaller than a preset rotation speed; and if it is determined that the accumulative operation duration is longer than afirst preset duration or the continuous operation duration is longer than a second preset duration, the condensation preventing operation is executed, wherein the first preset duration is longer thanthe second preset duration. The control method and device are applied to the air conditioner.

Description

technical field [0001] The invention relates to the field of anti-condensation control of air conditioners, in particular to an air conditioner and its control method and device. Background technique [0002] With the improvement of people's living standards, air conditioners (air conditioners) have also entered thousands of households. The use of household air conditioners and central air conditioners is becoming more and more common, and users have higher and higher requirements for the comfort of air conditioners. However, when the air conditioner is in cooling operation in a high-temperature and high-humidity environment, after a period of operation, the temperature near the indoor evaporator of the air conditioner and the air outlet of the indoor unit will be lower than the indoor temperature, and there is a certain temperature difference. The higher the ambient temperature and humidity, the easier it is for the water vapor in the air to condense on the indoor evaporato...

AI Technical Summary

Problems solved by technology

However, when the air conditioner is in cooling operation in a high-temperature and high-humidity environment, after a period of operation, the temperature near the indoor evaporator of the air conditioner and the air outlet of the indoor unit will be lower than the indoor temperature, and there is a certain temperature difference. The higher the ambient temperature and humidity, the easier it is for the water vapor in the air to condense on the indoor evaporator of the air conditioner and / or near the air outlet of the indoor unit and / or on the air deflector. The dew will be affected by gravity or blown by the fan, and will drip onto the user's wall or floor, causing pollution to the user's room, affecting the comfort of the room environment, and furthermore, the condensation will cause the growth of bacteria in the indoor environment, affecting the user experience

In view of this, the anti-condensation mode can be set in the air conditioner to perform anti-condensation operation. However, because the air conditioner does not add a relative humidity sensor to the air conditioner at present, it cannot detect the indoor humidity, so that the timing of the air conditioner to perform the anti-condensation operation is not good. Accurate, not only can not achieve a good anti-condensation effect, but also affect the normal operation of the air conditioner, reducing the user experience

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