▎ 摘　　要

NOVELTY - The refrigerator defrosting device comprises an evaporator, a temperature fuse (4) and a control board (5), and the evaporator includes a fin (1) and a refrigeration pipeline (2). The fin and a refrigeration surface of the pipeline are coated with a graphene heat-dissipating slurry layer, and a heat-resistant layer or support is arranged between the evaporator and the inner container of the refrigerator. The heat-resistant layer or support is provided the graphene heating film (301). The surface area of the graphene heating film is greater than or equal to the projected area of the side of the evaporator. The thickness of the graphene heat dissipation slurry layer is 5-15 micrometre. USE - Refrigerator defrosting device. ADVANTAGE - Refrigerator defrosting device improves the heat absorption capacity by coating the graphene heat dissipation slurry on the evaporator refrigeration pipes and fins, and installs the graphene heating film between the evaporator and the refrigerator liner to improve the heat radiation performance of the evaporator. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for controlling refrigerator defrosting. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of refrigerator defrosting device. Fin (1) Refrigeration pipeline (2) Temperature fuse (4) Control board (5) Graphene heating film (301)