Method for detecting insufficient refrigerant of air conditioner and air conditioner thereof

Abstract

The invention provides a method for detecting insufficient refrigerant of an air conditioner and the air conditioner thereof. The method for detecting the insufficient refrigerant of the air conditioner comprises the following steps that S1, whether the refrigerant filling the air conditioner is sufficient or not is judged, if an judgment result is insufficient, the step S2 is executed; S2, the type of the original refrigerant filling the air conditioner is judged; S3, the refrigerant fills a refrigerant circulation pipeline of the air conditioner, wherein the step S1 is executed regularly every other detection period. According to the method, the comparison and the judgment can be carried out more accurately and quickly; and a pre-stored matrix table is queried, so that the process of comparing multiple data is simplified, and the accuracy degree of the detection is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner refrigerant shortage detection method and the air conditioner. Background technique [0002] With the improvement of people's living standards, the penetration rate of air conditioners is also getting higher and higher. Facing the large-scale popularization of air conditioners, the maintenance of air conditioners has become correspondingly frequent. Among them, after long-term use of the air conditioner, there may be insufficient refrigerant reserve, or refrigerant failure caused by pipeline rupture. The problem caused by the refrigerant failure of the air conditioner is that the temperature regulation ability of the air conditioner is deteriorated firstly, and usually after the air conditioner has been running for a long time in the state of refrigerant failure, the user will find the problem and seek maintenance. At this time, since the refrigerant ...

AI Technical Summary

Problems solved by technology

[0004] However, although it seems simple, the two steps of refrigerant replenishment and judgment of refrigerant type in the prior art cannot be adjusted in a simple and random order.

This is because the change and shortage of the remaining refrigerant will affect the operating parameters of the air conditioner such as temperature and pressure. Therefore, in the case of insufficient refrigerant remaining, the existing technology cannot provide effective and accurate judgment of the type of refrigerant However, it is necessary to judge the type of refrigerant and perform an error alarm by running the air conditioner after supplementary filling. That is to say, the existing technology can only perform an alarm after a filling error, but cannot perform the original refrigerant filling before supplementary filling. kind of prejudgment

Images