Graphene heating film

Abstract

The invention relates to the technical field of graphene material application, and particularly discloses a graphene heating film. The graphene heating film comprises a heating film body, and the heating film body comprises a carrier and a plurality of rectangular surface-shaped graphene heating coatings coated on the carrier, and a polymer insulating film is thermally coated on the graphene heating coatings; silver electrode strips are arranged at the bottoms of the two ends of each graphene heating coating, and graphene strips for preventing the silver electrode strips from making contact with the carrier are arranged between the silver electrode strips and the carrier. The adjacent graphene heating coatings are connected in parallel through the electrode connecting sections, electrode current-carrying strips are arranged on the upper surfaces of the graphene heating coatings and the electrode connecting sections, and the electrode current-carrying strips are clamped between the graphene heating coatings and the polymer insulating films; connection terminals are arranged at the two ends of the heating film body, penetrate through the current-carrying strips and are fixed to the heating film body, heating is uniform, heating efficiency is high, safety is high, the service life is long, and production monitoring and rear end machining are easy and convenient.

Description

technical field [0001] The invention relates to the technical field of graphene material application, in particular to a graphene heating film. Background technique [0002] The heating film is a planar heating element composed of an electrical insulating material and a heating resistance material packaged in it. According to different heating materials, heating films are divided into polymers, printing inks, carbon fibers, metal wires, etc. Because these heating films belong to electric heating elements, they have common or similar characteristics, but different heating materials have inherent physical, chemical, The different properties of electrochemistry and electric heating determine the difference in performance of different types of heating films, but the current commonly used heating films have more or less certain safety hazards when used. [0003] As a new material, graphene has excellent optical, electrical and mechanical properties. When the graphene heating fil...

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Problems solved by technology

[0005] In the graphene heating film in the above technical solution, the heating film is an integral structure, and the uniformity of heating is difficult to guarantee, and the impedance of the heating film cannot be monitored separately, and the protective layer is only laid on the upper surface of the graphene layer, and the peeling resistance is poor. , high voltage breakdown strength and service life will be greatly reduced

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