Planar heating device used for defrosting and deicing refrigerator

Abstract

The invention discloses a planar heating device used for defrosting and deicing a refrigerator and relates to the technical field of refrigeration plants such as refrigerators and freezers. The planarheating device used for defrosting and deicing the refrigerator comprises a heating body, a temperature sensor, a control circuit, an insulated fixing housing and an insulated heat conducting layer.The heating body consists of amorphous graphite fibre cloth with a certain specification and area, conductive electrodes and leads, wherein the conductive electrodes are on the two sides of the amorphous graphite fibre cloth, and the leads are connected with the conductive electrodes; the leads and a control wire are connected with the heating body and the temperature sensor; and the insulated heat conducting layer, the heating body, the temperature sensor and the insulated fixing housing are arranged in sequence. According to the planar heating device used for defrosting and deicing the refrigerator, the amorphous graphite fibre cloth is supplied with through the leads to generate heat; and finally, a refrigerator evaporator is heated through the insulated heat conducting layer to achievea defrosting effect; and the planar heating device used for defrosting and deicing the refrigerator has the advantages that the heat conversion rate is high, the heating contact area is large, the heating time is short, the temperature uniformity of the insulated heat conducting layer is high, the refrigerator energy consumption can be effectively reduced, and the heating efficiency of the planarheater can be enhanced.

Description

technical field [0001] The patent of the invention belongs to the technical field of refrigerators, and in particular relates to a planar heating device for defrosting and deicing refrigerators. Background technique [0002] A refrigerator is a refrigeration device that can maintain a constant low temperature. It is a common electrical appliance used to store food or other items at low temperature in our daily life. It is widely used in the fields of life and industry. At present, most of the heaters used for defrosting and deicing household air-cooled refrigerators are steel pipe or quartz tube heaters. When steel pipe or quartz tube heaters are used for defrosting inside the refrigerator, they have small heating area, long working hours, and high energy consumption. High, low heating efficiency, poor temperature uniformity (local temperature is too high), the maximum heating temperature is not easy to control and other problems. The microcrystalline graphite used in this ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a planar heating device for defrosting and deicing of refrigerators, which supplies power to conductive electrodes through wires, thereby causing the heating body to generate heat, and finally heats the evaporator of the refrigerator through the insulating heat-conducting layer to achieve the defrosting effect of the refrigerator , which solves the problems of small heating area, long heating time, high energy consumption, low heating efficiency, poor temperature uniformity and difficult control of the maximum heating temperature in the existing steel pipe heater

Images