Waterproof graphene heating sheet and preparation method thereof

A graphene heating sheet and waterproof technology, which is applied in the direction of ohmic resistance waterproof/airtight, electric heating device, heating element material, etc., can solve product overheating damage, graphene heating sheet soaked in water damage, graphene film layer installation error To improve the waterproof performance of the side edge, enhance the waterproof performance of the side edge, and avoid abnormal heating

Pending Publication Date: 2020-04-24
深圳市璞瑞达薄膜开关技术有限公司
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a waterproof graphene heating sheet, in addition to solving the problem of water damage to the graphene heating sheet, and at the same tim

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  • Waterproof graphene heating sheet and preparation method thereof
  • Waterproof graphene heating sheet and preparation method thereof
  • Waterproof graphene heating sheet and preparation method thereof

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Embodiment Construction

[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only part of the embodiments for understanding the inventive concepts of the present invention, and cannot represent All the embodiments are not explained as the only embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art on the premise of understanding the inventive concepts of the present invention fall within the protection scope of the present invention.

[0055] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the sp...

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Abstract

The invention relates to a waterproof graphene heating sheet and a preparation method thereof. The heating sheet comprises an insulating carrier film, a silver paste coating printed on the carrier film, a waterproof coating printed on the carrier film, a graphene heating coating selectively printed on the carrier film or a covering film, and an insulating covering film pressed on the carrier film.The waterproof coating covers bus bars of the silver paste coating, the waterproof coating is provided with a heating opening, positive and negative electrode wires of the silver paste coating are exposed, the graphene heating coating continuously covers the positive and negative electrode wires and the interval part between the positive and negative electrode wires through the heating opening, alow-resistance area generated by a short contact path and the adjacent bus bar at the end points of the positive and negative electrode wires is eliminated, normal and uniform heating in the heatingopening is ensured, the side edge waterproof performance of the graphene heating sheet can be improved, and the installation margin of the graphene heating coating is also increased.

Description

technical field [0001] The invention relates to the technical field of graphene heating, in particular to a waterproof graphene heating sheet and a preparation method thereof. Background technique [0002] The thin film heating sheet that uses graphene film to generate heat is more suitable for human body use and has environmental protection characteristics that can be reused. It is thin and easy to paste. Attached to use and miniaturized, it can be easily carried or attached to clothing. Existing heating sheet technology and products on the market generally have the quality problem of not being able to generate heat evenly and easily scalding the human body during use. One of the main reasons is that the offset of the installation position of the graphene film layer causes a short circuit to contact the low-resistance area of ​​the bus bar, and the product is prone to abnormal heating during use. Therefore, the installation margin of the graphene film layer is very small, ...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/04H05B3/36C08J7/04C08L67/02
CPCC08J2367/02H05B3/04H05B3/145H05B3/36
Inventor 孔令海刘超
Owner 深圳市璞瑞达薄膜开关技术有限公司
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