Air conditioner control method and air conditioner

Abstract

The invention provides an air conditioner control method. The air conditioner control method comprises the heat exchanger filth blockage detection step, and the detection step comprises the steps thata fan motor of an air conditioner operates at a preset rotating speed n; an air deflector of the air conditioner is in a preset state; a load torque observer observes the actual load torque TL of thefan motor in real time, and calculates the wind resistance value K according to the load formula and the actual load torque TL; and whether the wind resistance value K is smaller than or equal to first preset wind resistance value K 1 or not is judged, if yes, filth blockage of the heat exchanger occurs, then the current filth blockage degree of the heat exchanger is judged, and the air conditioner operates according to the filth blockage degree of the heat exchanger. The invention further provides an air conditioner. The air conditioner comprises a fan and a controller, wherein the fan is provided with a motor, and the controller executes the air conditioner control method. The filth blockage condition of the heat exchanger is judged by utilizing the wind resistance value obtained by calculating the actual load torque, and the filth blockage condition of the heat exchanger can be accurately reflected, so that the detection precision of filth blockage detection of the heat exchanger is improved, and the risk of filth blockage misjudgment action of the heat exchanger is reduced.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner control method and an air conditioner. Background technique [0002] Air conditioners are becoming more and more popular in people's lives, and consumers have higher and higher requirements for the functions of air conditioners. After the air conditioner is placed or used for a long time, the heat exchanger of the air conditioner tends to accumulate a lot of dust, resulting in a decline in the performance of the air conditioner. , the existing air conditioners generally rely on the length of time the air conditioner is turned on to estimate the degree of dirtyness of the heat exchanger, and judge whether the heat exchanger needs to be cleaned, or choose whether to clean it through the remote control buttons, but the air conditioner during use Other factors, such as air quality and air operation mode, have a great influence on the dust accum...

AI Technical Summary

Problems solved by technology

[0002] Air conditioners are becoming more and more popular in people's lives, and consumers have higher and higher requirements for the functions of air conditioners. After the air conditioner is placed or used for a long time, the heat exchanger of the air conditioner tends to accumulate a lot of dust, resulting in a decline in the performance of the air conditioner. , the existing air conditioners generally rely on the length of time the air conditioner is turned on to estimate the degree of dirtyness of the heat exchanger, and judge whether the heat exchanger needs to be cleaned, or choose whether to clean it through the remote control buttons, but the air conditioner during use Other factors, such as air quality, air operation mode, etc., have a great influence on the dust accumulation speed of the heat exchanger, so the single control method of the existing technology cannot clean the air conditioner in a timely manner

Or use the pressure sensor to detect the pressure before and after the heat exchanger, simply through the fan current detection, through the coil temperature and dew point air temperature detection, but the cost of using the pressure sensor is relatively high, and the pure fan current detection is easy because of the current detection accuracy. False triggering occurs; by coil temperature, dew point air temperature, false triggering is also prone to occur

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