Air conditioner and humidity detection method and device used for air conditioner

Abstract

The invention discloses a humidity detection method used for an air conditioner. The humidity detection method includes the following steps that operation modes of the air conditioner and continuous operation time after the air conditioner is started to operate are obtained, and the indoor environment temperature is detected; whether the operation modes of the air conditioner, the continuous operation time and indoor environment temperature meet preset conditions or not are judged; and if the judgment meets the preset conditions, a humidity sensor in the air conditioner is controlled to start to work to detect the relative humidity of the indoor environment. According to the humidity detection method used for the air conditioner, it can be avoided that the humidity sensor is in the working state all the time, and the service life of the humidity sensor can be prolonged. The invention further discloses a humidity detection device used for the air conditioner and the air conditioner with the humidity detection device.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a humidity detection method for an air conditioner, a humidity detection device for an air conditioner and an air conditioner. Background technique [0002] With the development of air-conditioning technology, people have higher and higher requirements for comfortable temperature control, so humidity sensors have been gradually applied in household air conditioners. [0003] Among them, the humidity sensors applied to air conditioners can be divided into two categories: resistive and capacitive. After the water vapor in the air is adsorbed on the moisture-sensitive material, the impedance and dielectric constant of the element will change, thereby making a humidity-sensitive element. The accuracy of the humidity sensor is required to reach 2%-5%RH. Due to the characteristics of the humidity sensor, its annual drift is around 2%RH. Therefore, precision and long-term stab...

AI Technical Summary

Problems solved by technology

[0005] 1. When the air conditioner is in cooling operation, the indoor heat exchanger produces condensed water, and due to the compact structure of the indoor unit, when condensed water is produced, the detection value of the humidity sensor deviates greatly from the actual value;

[0006] 2. The difference in the installation position of the air conditioner will also affect the detection error of the indoor air humidity;

[0007] 3. After the air conditioner is powered on, the humidity sensor is in working condition, long-term use will reduce the service life of the humidity sensor

Images