▎ 摘　　要

NOVELTY - The utility model is suitable for material manufacturing field, providing a graphene picture, the heating device comprises a shell, the shell is equidistantly provided with a plurality of fin heat cavity, and the adjacent two fin heat cavity are provided with a layer of graphene heating film, the bottom of each fin heat cavity is connected with a branch pipe; the lower part of the branch pipe is connected with an air inlet cavity; the fin heat cavity top opening; the top shell of the heating device opposite to the fin heat cavity position is provided with an air outlet; the lower part of the top shell is further provided with a temperature sensor; the front side of the heating device is provided with a front insulating layer; the back side is provided with a rear insulating layer. The whole mounting structure of the graphene picture is relatively simple; and the setting of the fin heat cavity makes the air flow in the picture frame more fully healthy.