Method for detecting lack of refrigerant in air conditioner, and air conditioner

An air conditioner and refrigerant technology, applied in heating methods, space heating and ventilation, household heating, etc., can solve the problems of lack of refrigerant, failure to automatically detect refrigerant leakage, etc., and achieve economical, practical, convenient and accurate operation
CN102788403AInactive Publication Date: 2012-11-21MIDEA GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MIDEA GRP CO LTD
Publication Date
2012-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for detecting the lack of a refrigerant in an air conditioner, and the air conditioner. The air conditioner comprises a compressor, a heat exchange, a throttling piece, a wind wheel and a controller, wherein an inlet refrigerant temperature sensor for detecting the refrigerant inlet temperature of the heat exchanger is arranged at an inlet of the heat exchanger; an outlet refrigerant temperature sensor for detecting the refrigerant outlet temperature of the heat exchanger is arranged at the outlet of the heat exchanger; when the absolute value of the difference between the refrigerant inlet temperature and the refrigerant outlet temperature is greater than or equal to a set value, the controller displays the lack of the refrigerant in the air conditioner. According to the invention, through detection by the relevant temperature sensors, the lack of the refrigerant in the air conditioner can be displayed timely and accurately, and the corresponding alarm information about the lack of the refrigerant can be given, therefore, the problem that the conventional household air conditioner cannot automatically detect the leakage or lack of the refrigerant is solved; and further, the method and the air conditioner have the characteristics of economy, practicability, and convenience and accuracy in operation.
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Description

technical field

[0001] The invention relates to the technical field of air conditioners, in particular to a method for detecting lack of refrigerant in the air conditioner and the air conditioner. Background technique

[0002] At present, commonly used household air conditioners include two parts: indoor unit and outdoor unit. The whole air conditioning system includes compressor, heat exchanger, throttling parts, wind wheel and controller, among which there are two heat exchangers, one is located indoors The heat exchanger on the side is called the evaporator; the other is the heat exchanger on the outdoor side, called the condenser. There is a refrigerant in the pipeline of the heat exchanger. The refrigerant is driven by the pressure generated by the compressor and circulates in the pipeline of the entire air conditioning system. The refrigerant is cooled with the indoor and outdoor air in the evaporator on the indoor side and the condenser on the outdoor side respectivel...

Claims

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