A heat-conducting pad silica gel heating film

The thermal pad silicone heating film, designed with segmented heat-conducting blocks and serpentine heating wires, solves the problems of compatibility and heat loss of traditional heating films, achieving efficient and uniform heating.

CN224538358UActive Publication Date: 2026-07-21DONGGUAN CHUANZE ELECTRONIC TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN CHUANZE ELECTRONIC TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional heating films are difficult to adapt to different equipment sizes, resulting in heat loss and uneven heating, which affects heating efficiency.

Method used

It adopts a segmented heat-conducting block structure and a serpentine heating wire design, combined with Velcro and plug-in plates to achieve modular splicing, ensuring continuous heat conduction, and reducing heat loss through heat conduction holes and sealing structure.

Benefits of technology

It enables free cutting and splicing according to equipment size, ensuring uniform heat diffusion on the surface of the heat-conducting pad, and improving heating efficiency and heat utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224538358U_ABST
    Figure CN224538358U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of silica gel heating film of heat-conducting pad in the technical field of heating film, including silica gel heat-conducting layer, its surface is sequentially provided first, second, third heat-conducting block from left to right.Each heat-conducting pad surface left side is installed hook face magic tape, right side corresponding position installs wool surface magic tape, forms detachable connecting structure, so that silica gel heat-conducting layer realizes modularization splicing function.When needing to expand heating area, adjacent heat-conducting pad can be quickly adhered and fixed by splicing mode, and segmented design allows user to freely cut or increase or decrease heat-conducting pad quantity according to equipment size, both convenient splicing, and can guarantee heat-conducting pad heat conduction continuity, reduce splicing gap heat loss.In addition, silica gel heat-conducting layer is installed with heating assembly inside, and heating wire of serpentine design is arranged in its inner cavity, heat is evenly spread on the surface of heat-conducting pad by meandering wiring mode, effectively improve the heating efficiency of heating assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of heating film technology, specifically to a thermally conductive silicone heating film. Background Technology

[0002] Silicone heating film is a flexible electric heating element composed of nickel-chromium alloy heating wire or metal foil resistance wire and a high-temperature silicone insulation layer. It features rapid heating, uniform temperature, high thermal efficiency, safety and durability, and can be bent to fit any shape of object surface. It is widely used in industrial pipeline insulation, medical equipment heating, electronic component moisture protection, food defrosting and household appliance temperature regulation, and supports customized specifications and parameters as needed.

[0003] However, in traditional heating film applications, due to the diverse sizes and specifications of equipment, traditional integral heating films are difficult to adapt to different equipment sizes. They either cannot be installed due to size mismatch, or there are a lot of redundant or insufficient coverage areas after installation. Moreover, after cutting, the integrity of heat conduction cannot be guaranteed. During splicing, structural defects can easily cause heat loss at the gaps, resulting in poor heating effect. At the same time, the internal heating wire wiring method of traditional heating films is simple, making it difficult to achieve uniform heat diffusion on the surface of the heat-conducting pad. This can easily lead to local overheating or uneven heating, which seriously affects heating efficiency. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a thermally conductive silicone heating film that reduces heat loss at seams, improves the heating efficiency of the heating components, and solves the problems of insufficient heat conduction integrity after cutting, heat loss at seams due to structural defects during splicing, resulting in poor heating performance. Furthermore, traditional heating films have a single internal heating wire wiring method, making it difficult to achieve uniform heat diffusion on the surface of the thermally conductive pad, easily leading to localized overheating or uneven heating, which seriously affects heating efficiency.

[0005] The objective of this utility model is achieved through the following means:

[0006] A thermally conductive silicone heating film includes a silicone thermally conductive layer, a heating wire, and a thermally conductive oil film. The silicone thermally conductive layer is composed of a first thermally conductive block, a second thermally conductive block, and a third thermally conductive block, with the first and third thermally conductive blocks respectively assembled on both sides of the second thermally conductive block. A heating component is installed inside the silicone thermally conductive layer, and a heating wire is arranged in the inner cavity of the heating component. The lower part of the surface of the heating component is a thermally conductive oil film. The heating wire has a serpentine design, and the thermally conductive oil film is in contact with the surface of the heating wire. Thermally conductive holes are formed on the surface of the heating component.

[0007] Furthermore, hook-and-loop fasteners and loop fasteners are installed on both sides of the first, second, and third heat-conducting blocks.

[0008] Furthermore, each of the first, second, and third heat-conducting blocks is equipped with an independent heating component.

[0009] Furthermore, the inner sides of the second and third heat-conducting blocks are each equipped with a plug-in plate, and the surface of the heating component is provided with a plug-in slot corresponding to the plug-in plate. The plug-in plate is inserted into the plug-in slot to connect the first, second and third heat-conducting blocks.

[0010] Furthermore, sealing strips are installed on the sides of the silicone thermal conductive layer, and sealing gaskets are installed on the sides of the heating component. The sealing strips and sealing gaskets can seal the sides of the silicone thermal conductive layer and the heating component.

[0011] The beneficial effects of this utility model are as follows: the silicone thermal conductive layer achieves modular splicing function through the segmented thermal conductive block structure set on the surface. The first thermal conductive block, the second thermal conductive block and the third thermal conductive block are arranged in sequence. When it is necessary to expand the heating area, adjacent thermal conductive pads can be quickly glued and fixed through the splicing structure. Its segmented design allows users to freely cut or increase or decrease the number of thermal conductive pads according to the size of the equipment, which facilitates the splicing of thermal conductive pads. Moreover, this splicing method ensures the continuity of heat conduction between thermal conductive pads and reduces heat loss at the splicing gaps. At the same time, the serpentine heating wire used in the added heating component can achieve uniform heat diffusion on the surface of the thermal conductive pad through the meandering wiring method, which improves the heating efficiency of the heating component. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded perspective view of the present invention;

[0014] Figure 3 This is a schematic diagram of the internal structure of the silicone thermal conductive layer of this utility model;

[0015] Figure 4 This is a schematic diagram of the heating assembly of this utility model;

[0016] Figure 5 This is a schematic diagram of the heating wire of this utility model.

[0017] In the diagram, 1. Silicone thermal conductive layer; 2. First thermal conductive block; 3. Second thermal conductive block; 4. Third thermal conductive block; 5. Hook and loop fastener; 6. Loose-knit fastener; 7. Heating component; 8. Heating wire; 81. Thermal conductive oil film; 9. Sealing strip; 10. Connecting plate; 11. Connecting slot; 12. Thermal conductive hole; 13. Sealing gasket. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] In this embodiment, refer to Figure 1 - Figure 5 The specific implementation of the thermal conductive pad silicone heating film includes a silicone thermal conductive layer 1, a heating wire 8, and a thermal conductive oil film 81. The silicone thermal conductive layer 1 is composed of a first thermal conductive block 2, a second thermal conductive block 3, and a third thermal conductive block 4. The first thermal conductive block 2 and the third thermal conductive block 4 are respectively assembled on both sides of the second thermal conductive block 3. A heating component 7 is installed inside the silicone thermal conductive layer 1. The heating wire 8 is arranged in the inner cavity of the heating component 7. The lower part of the surface of the heating component 7 is the thermal conductive oil film 81. The heating wire 8 has a serpentine design. The thermal conductive oil film 81 is in contact with the surface of the heating wire 8. Thermal conductive holes 12 are opened on the surface of the heating component 7.

[0020] The first heat-conducting block 2, the second heat-conducting block 3, and the third heat-conducting block 4 are all equipped with hook-and-loop fasteners 5 and loop fasteners 6 on both sides.

[0021] Each of the first heat-conducting block 2, the second heat-conducting block 3, and the third heat-conducting block 4 is equipped with an independent heating component 7.

[0022] The silicone thermal conductive layer 1 achieves modular splicing through a segmented thermal conductive block structure on its surface: the first thermal conductive block 2, the second thermal conductive block 3, and the third thermal conductive block 4 are arranged sequentially, with hook-and-loop fasteners 5 and loose-fitting hook-and-loop fasteners 6 on their left and right sides forming a detachable connection structure. When it is necessary to expand the heating area, adjacent thermal conductive pads can be quickly glued and fixed by hook and loop fasteners. Its segmented design allows users to freely cut or increase or decrease the number of thermal conductive pads according to the size of the device, making it convenient to splice the thermal conductive pads. This splicing method ensures the continuity of heat conduction between the thermal conductive pads and reduces heat loss at the splicing gaps. At the same time, the serpentine heating wire 8 used in the added heating component 7, through its meandering wiring method, can achieve uniform heat diffusion on the surface of the thermal conductive pads, improving the heating efficiency of the heating component 7.

[0023] The lower part of the surface of the heating component 7 is a heat-conducting oil film 81, which is in contact with the surface of the heating wire 8. The heat of the heating wire 8 can be dissipated through the heat-conducting oil film 81.

[0024] Heat conduction holes 12 are provided on the surface of the heating component 7, which improves the heating efficiency of the heating component 7 on the silicone heat conduction layer 1.

[0025] The inner sides of the second heat-conducting block 3 and the third heat-conducting block 4 are each equipped with a plug-in plate 10. The surface of the heating component 7 is provided with a plug-in groove 11 at the corresponding position of the plug-in plate 10. The plug-in plate 10 is inserted into the plug-in groove 11 to connect the first heat-conducting block 2, the second heat-conducting block 3 and the third heat-conducting block 4.

[0026] A sealing strip 9 is installed on the side of the silicone thermal conductive layer 1, and a sealing gasket 13 is installed on the side of the heating component 7. The sealing strip 9 and the sealing gasket 13 can seal the sides of the silicone thermal conductive layer 1 and the heating component 7.

[0027] The working process of a thermal pad silicone heating film in this embodiment is as follows: First, modular splicing and installation stage: According to the size and shape requirements of the device to be heated, the user splices and combines the first thermal block 2, the second thermal block 3 and the third thermal block 4 through the hook-and-loop fasteners 5 and the rough-and-loop fasteners 6 set on their surfaces.

[0028] During the assembly process, the plug-in plate 10 on the left side of the second heat-conducting block 3 and the third heat-conducting block 4 will be precisely inserted into the corresponding plug-in slot 11 on the surface of the heating component 7. This design not only enhances the connection stability between the heat-conducting pads, but also ensures that the heat conduction path between the heat-conducting pads and the heating component 7 is unobstructed, completing the modular assembly of the heat-conducting pads and the heating component 7 to adapt to different heating scenarios.

[0029] Then, in the heat generation and conduction stage, the serpentine heating wire 8 arranged inside the heating component 7 begins to heat up after being energized. The heat generated by the heating wire 8 is rapidly transferred to the thermally conductive oil film 81, which is in close contact with its surface. The thermally conductive oil film 81, with its excellent thermal conductivity, evenly diffuses the heat to the entire surface of the heating component 7, and further accelerates the heat transfer to the silicone thermally conductive layer 1 through the thermally conductive holes 12 opened on the surface of the heating component 7. The design of the thermally conductive holes 12 effectively increases the heat exchange area, reduces heat loss during the transfer process, and significantly improves the heating efficiency of the heating component 7 on the silicone thermally conductive layer 1.

[0030] Finally, the sealing and continuous heating stage: After the silicone thermal conductive layer 1 and the heating component 7 are spliced ​​and installed, the sealing strip 9 installed on the side of the silicone thermal conductive layer 1 and the sealing gasket 13 installed on the side of the heating component 7 are tightly fitted together to form a reliable sealing barrier.

[0031] This sealed structure effectively prevents external dust, moisture, and other impurities from entering the interior of the heat-conducting pad, while also reducing heat loss from the side gaps, ensuring the heating effect and service life of the heating film. Under this sealed protection, the heating component 7 continuously and stably generates heat, which is evenly transferred to the heated object through the silicone heat-conducting layer 1, achieving efficient and safe heating.

[0032] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A thermally conductive silicone heating film, comprising a silicone thermally conductive layer, a heating wire, and a thermally conductive oil film, characterized in that: The silicone thermal conductive layer is composed of a first thermal conductive block, a second thermal conductive block, and a third thermal conductive block. The first thermal conductive block and the third thermal conductive block are respectively assembled on both sides of the second thermal conductive block. A heating component is installed inside the silicone thermal conductive layer. A heating wire is arranged in the inner cavity of the heating component. A thermally conductive oil film is formed on the lower part of the surface of the heating component. The heating wire has a serpentine design. The thermally conductive oil film is in contact with the surface of the heating wire. Thermal holes are opened on the surface of the heating component.

2. The thermally conductive silicone heating film according to claim 1, characterized in that: Both sides of the first, second, and third heat-conducting blocks are equipped with hook-and-loop fasteners and loop fasteners.

3. The thermally conductive silicone heating film according to claim 1, characterized in that: Each of the first, second, and third heat-conducting blocks is equipped with an independent heating component.

4. The thermally conductive silicone heating film according to claim 1, characterized in that: Both the second and third heat-conducting blocks have plug-in plates installed on their inner sides, and the surface of the heating component has plug-in slots at positions corresponding to the plug-in plates.

5. The thermally conductive silicone heating film according to claim 1, characterized in that: The sides of the silicone thermal conductive layer are each fitted with a sealing strip, and the sides of the heating assembly are each fitted with a sealing gasket.