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Graphene heating film

A technology of ene heating film and graphene, which is applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problem of high voltage breakdown resistance and service life discount, the impedance of heating film cannot be monitored separately, and the uniformity of heating is difficult to guarantee, etc. Problems, to achieve the effect of safe and reliable current carrying, increasing the safe carrying capacity and increasing the contact surface

Pending Publication Date: 2020-05-15
FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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AI Technical Summary

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

Method used

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Embodiment Construction

[0033] The present invention is further illustrated by the following examples, but these examples are only exemplary, and the present invention is not limited thereto.

[0034] Such as Figure 1-3 As shown, a graphene heating film of the present invention includes a heating film body 1 , and the heating film body 1 includes a carrier 11 , a graphene heating coating 12 and a polymer insulating film 13 .

[0035] The carrier 11 is a modified PET film. The modified PET film is first corona treated on both sides of the PET film, and then the surface is hard-coated. It is also heat-set and desulfurized before production to ensure that it is stable under high temperature. The dimensional stability is good, the secondary transverse shrinkage rate is close to zero, and the longitudinal shrinkage rate is 2‰-3‰. The modified PET film has strong surface adhesion, which improves the stability and reliability of product quality.

[0036] The graphene heating coating 12 is coated on the ca...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34
CPCH05B3/34
Inventor 吴立刚叶德林胡柱东曾垂彬舒文武吴立柔
Owner FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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