Method and device for controlling refrigerant circulation abnormity of air conditioner as well as air conditioner thereof

Abstract

The invention discloses a method and a device for controlling refrigerant circulation abnormity of an air conditioner and an air conditioner thereof. The method comprises the following steps: determining whether first temperature difference between the indoor environment temperature of the indoor side of the air conditioner and the temperature of an inner evaporator tube and second temperature difference between the temperature of an initial inner evaporator tube and the temperature of the inner evaporator tube are smaller than or equal to respective first preset values in a refrigeration mode of the air conditioner; controlling gear shift or halt of the air gear of an outdoor unit of the air conditioner when both the first temperature difference and the second temperature difference are smaller than or equal to the respective first preset values; then determining whether outer side temperature difference between an outdoor unit condenser on the outdoor side of the air conditioner and the outdoor environment is smaller than or equal to a second preset value; and determining that the refrigerant circulation of the air conditioner is abnormal. Through the scheme, the defects of low accuracy, low reliability and poor user experience in the prior art can be overcome; the beneficial effects of high accuracy, high reliabkity and good user experience can be achieved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a control method and device for abnormal refrigerant circulation of an air conditioner, and an air conditioner, in particular to a method for detecting fluorine deficiency protection of an air conditioner system, a device corresponding to the method, and an air conditioner with the device . Background technique [0002] Split type air conditioner (i.e. split type air conditioner), consists of an indoor unit (i.e. indoor unit) and an outdoor unit (i.e. outdoor unit), one indoor unit corresponds to one outdoor unit; the indoor unit and the outdoor unit are installed in the indoor and outdoor , the air conditioner connected by pipes and wires in the middle. The common fault maintenance in split air conditioners is compressor damage. The root causes of compressor damage are mainly high temperature and high current. The common high temperature damage is generally...

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Problems solved by technology

[0005] The purpose of the present invention is to address the above defects, to provide a method and device for controlling the abnormality of the refrigerant circulation of the air conditioner, and to solve the problem of poor accuracy in judging the lack of refrigerant through the system current in the prior art, so as to improve the accuracy. Effect

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