Method for preventing fire of refrigerator

Abstract

The invention discloses a method for preventing a refrigerator from being on fire, and relates to the technical field of refrigerator safety. According to the method, intelligent control is achieved through a control system composed of a control module, a defrosting heater, a temperature sensing module and a WIFI module, and the state of the defrosting heater is monitored through the control module. When the defrosting heater is in an on state, the temperature sensing module monitors the real-time temperature of each sensor: if the temperature of the K-type thermocouple is less than 394 DEG C, and the temperature of the defrosting sensor is gt; when the temperature is quitted, the defrosting heater is closed; if the temperature of the K-type thermocouple is gt; and if the temperature of the defrosting sensor is lower than the exit temperature, forcibly closing the defrosting heater, and recording the forcible closing times of the defrosting heater as n. If n is smaller than 2, it is judged that the defrosting system is abnormal; and if n is larger than or equal to 2, it is judged that the defrosting system is abnormal, and the WIFI module sends early warning information to a user and a manufacturer. The maximum working temperature of the defrosting heater is controlled by monitoring the temperature of the surface of the defrosting heater in real time, and further safety guarantee is provided for the refrigerator in the aspect of software control.

Description

technical field [0001] The invention belongs to the technical field of refrigerator safety, and in particular relates to a method for preventing a refrigerator from igniting. Background technique [0002] Air-cooled refrigerators have been fully popularized in the home appliance market. The defrosting electric heater inside can automatically melt the frost accumulated on the surface of the evaporator when it is working, and there is no need for users to manually defrost. During the working process of the electric heater, its surface temperature can rise to 394°C in a short time (the national standard requires that the surface temperature of the refrigerator defrost heater should not be higher than 394°C) and above. The maximum operating temperature of the heater surface. Generally, the temperature control of the defrosting electric heater is realized by connecting a temperature fuse in series on the leads at both ends of the heater. The temperature fuse will fuse immediate...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for preventing fires in refrigerators. By monitoring the surface temperature of the defrosting heater in real time and controlling its maximum operating temperature, the refrigerator is further guaranteed in terms of software control, and the existing defrosting problem is solved. The problem of fire safety hazards after the failure of electric heaters

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