Method and device for detecting refrigerant leakage of air conditioner and air-conditioning device

Abstract

The embodiment of the invention provides a method and device for detecting refrigerant leakage of an air conditioner and an air-conditioning device. The method and device for detecting refrigerant leakage of the air conditioner and the air-conditioning device are used for solving the problems that in the prior art, due to the fact that a user cannot realize refrigerant leakage easily when refrigerant leakage happens to the air conditioner, the refrigerating effect and the heating effect are poor, and thus the hidden danger that a compressor is burnt down is avoided. The method for detecting refrigerant leakage of the air conditioner comprises the steps that the temperature interval to which the first temperature difference between the indoor temperature and the temperature of an indoor coil pipe is detected, and whether the first temperature difference between the indoor temperature and the temperature of the indoor coil pipe lasts for a first preset time or not is also detected; if the temperature interval to which the first temperature difference belongs is a first temperature interval and the first temperature difference between the indoor temperature and the temperature of the indoor coil pipe lasts for the first preset time, whether a second temperature difference between the exhaust temperature and the temperature of the coil pipe is equal to or larger than a first preset value or not or a third temperature difference between the outdoor environment and the indoor coil pipe is smaller than or equal to a second preset value or not is detected; if it is detected that the second temperature difference is equal to or larger than the first preset value or it is detected that the third temperature difference is smaller than or equal to the second preset value, it is determined that refrigerant leakage happens to the air conditioner, and a first leakage signal is given out.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner refrigerant leakage detection method, device and air conditioner. Background technique [0002] With the continuous development of electronic technology, household appliances have become indispensable electrical equipment in people's lives, bringing more convenience and services to people's lives. Among them, air conditioners have become one of the electrical equipment for people to cool or heat in the severe heat and cold winter. [0003] The refrigerants of existing air conditioners are easy to evaporate and liquefy, absorb heat when evaporating, and release heat when liquefied. Air conditioners use this characteristic of refrigerants to transfer energy and achieve the purpose of cooling or heating. However, during the actual operation of the air conditioner, there may be a problem of slow leakage or sudden leakage of refrigerant, which will cause t...

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Problems solved by technology

[0004] Embodiments of the present invention provide a detection method, device, and air-conditioning equipment for air-conditioning refrigerant leakage, which are used to solve the problem in the prior art that when the air-conditioning refrigerant leaks, the user is not easy to detect it, resulting in poor cooling and heating effects, thereby avoiding The hidden danger of the compressor being burned

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