Air conditioner fault diagnosis method based on theoretical model

Abstract

The invention discloses an air conditioner fault diagnosis method. The air conditioner fault diagnosis method is timely in fault diagnosis, simple, convenient to use, practical, and reliable. The air conditioner fault diagnosis method based on a theoretical model includes the steps that the theoretical model of an air conditioner room temperature change curve is established, the theoretical model and an air conditioner actual operation room temperature change curve are compared, whether the performance of an air conditioner is reduced or not is judged according to the comparative difference result, and then faults of the air conditioner are diagnosed.

Description

technical field [0001] The invention relates to a fault diagnosis method of an air conditioner based on a theoretical model. Background technique [0002] At present, air conditioners have a relatively high penetration rate in China. Nearly 90% of urban households have at least one air conditioner. The purpose of people buying air conditioners is to pursue the comfort of life. Therefore, air conditioner performance (cooling or heating effect) has become a common concern for people. question. However, air conditioners, like other electrical appliances, always have different degrees of faults, which affect normal use. The common faults of air conditioners can be divided into two categories. One is the problems caused by the operation of air conditioners, such as filter and condenser blockage. Such problems will accumulate and deepen with the long-term use of the air conditioner; another type of problem is caused by improper installation and commissioning of the air conditione...

AI Technical Summary

Problems solved by technology

However, air conditioners, like other electrical appliances, always have different degrees of faults, which affect normal use. The common faults of air conditioners can be divided into two categories. One is the problems caused by the operation of air conditioners, such as filter and condenser blockage. Such problems will accumulate and deepen with the long-term use of the air conditioner; another type of problem is caused by improper installation and commissioning of the air conditioner, such as too much or too little refrigerant, which will also reduce the cooling or heating effect of the air conditioner. Compared with the first type of problems, it is more difficult to check, judge and discover, which brings troubles to maintenance and repair.

Images