Heat radiation sheet

By designing a thermal radiation sheet including a temperature sensing element, a flame retardant layer, a heating film, a reflective layer and a flexible layer, the existing heating film has been solved, and more uniform heating is achieved and more uniform heating is achieved, and safety is improved.

CN222655349UActive Publication Date: 2025-03-21SHENZHEN BREO TECH CO LTD
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Patent Information

Application Number
CN202323499751.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-21
Publication Date
2025-03-21
Estimated Expiration
2033-12-21

AI Technical Summary

Technical Problem

The existing heating film has a small area and uneven heating, resulting in heat loss and poor use effect.

Method used

A thermal radiation sheet is designed, including a temperature sensing element, a flame retardant layer, a heating film, a reflective layer and a flexible layer. The positive and negative electrode areas of the heating film are larger than the middle at both ends, and can be located on both the front and the reverse surfaces of the base layer respectively to achieve more uniform heating.

Benefits of technology

Through this design, the heating of the heating film becomes more uniform, increasing the heating area and heat, improving the utilization rate of heat, and realizing power outage protection through the setting of the temperature sensing element, improving safety.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a heat radiation sheet. The heat radiation sheet comprises a temperature sensing element, a flame-retardant layer, a heating film, a reflecting layer and a flexible layer, the temperature sensing element is connected with the heating film; the heating film comprises a substrate layer, a heating layer, a positive electrode and a negative electrode. The heating layer and the substrate layer are stacked, and the heating layer is communicated with the positive electrode and the negative electrode; the areas of the positive electrode and the negative electrode at the two ends of the substrate layer are larger than those of the positive electrode and the negative electrode in the middle of the substrate layer, and the positive electrode and the negative electrode are positioned on the same surface of the substrate layer; or the positive electrode and the negative electrode are respectively positioned on the front surface and the back surface of the substrate layer. According to the invention, the arrangement mode of the positive electrode and the negative electrode enables the heating film to uniformly heat, increases the heating area, and improves the heating value. By arranging the reflecting layer, heat generated by the heating film can be reflected to the user side, and the heat utilization rate is increased. By arranging the temperature sensing element, power-off protection can be achieved under the condition that the temperature is too high, and the use safety is improved.
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