Combined heat-conducting silica gel sheet with embedded heat-conducting structure

CN224935965UActive Publication Date: 2026-11-03DIANTIE SMART TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202522544539.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-11-03
Estimated Expiration
2035-12-01

AI Technical Summary

Technical Problem

Existing thermally conductive silicone pads lack embedded thermal conductive structures, resulting in a unidirectional linear distribution of the heat conduction path. This makes it impossible to achieve uniform diffusion across the entire area, easily leading to hot spot accumulation and excessively high local temperatures.

Method used

The combined thermally conductive silicone sheet with an embedded thermally conductive structure includes a silicone matrix structure with an embedded heat transfer structure, and thermally conductive strips and thermally conductive wires are arranged alternately. The sidewalls of the thermally conductive strips are spliced ​​with thermally conductive blocks and spliced ​​thermally conductive holes to achieve lateral heat distribution and continuous heat conduction of multiple sheets.

Benefits of technology

It improves thermal conductivity and uniformity, avoids hot spot accumulation, ensures rapid heat diffusion throughout the silicone pad, achieves rigid connection and continuous thermal conductivity of multiple silicone pads, and prevents heat leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined heat conduction silica gel piece of embedded heat conduction structure, and the utility model relates to heat conduction silica gel piece technical field, which comprises: silica gel base structure, the inner wall fixedly connected with heat transfer structure of silica gel base structure, the heat transfer structure includes heat conduction strip, the outer wall of heat conduction strip is fixedly connected with the inner wall of silica gel base structure, the fixedly connected with heat conduction wire between heat conduction strip, the top and bottom of heat conduction strip are provided with fixed recess, the both ends fixedly connected with lead -out block of heat conduction strip, the lateral wall fixedly connected with spliced heat conduction block of heat conduction strip, improve heat conduction efficiency and uniformity, break the heat point accumulation problem, compared with prior art without embedded heat conduction structure or single heat conduction path design, and the heat conduction strip of parallel arrangement of multiple roots can quickly undertake the heat transfer of heating device transmission, and the heat conduction wire between heat conduction strip can realize the transverse high -efficient shunt of heat.
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Description

Technical Field

[0001] This utility model relates to the field of thermally conductive silicone pad technology, specifically to a combined thermally conductive silicone pad with an embedded thermally conductive structure. Background Technology

[0002] In fields such as electronic information, new energy, and intelligent manufacturing, the integration and power density of electronic devices continue to increase. Core components such as CPUs, power modules, and electronic control chips generate a large amount of heat during operation. Thermally conductive silicone pads, as a core heat dissipation material that combines flexibility and thermal conductivity, have become a key component in the thermal management system of electronic devices due to their ability to adapt to the tiny irregularities on the surface of components and fill heat dissipation gaps.

[0003] Regarding core thermal conductivity, existing products lack embedded thermal conductive structures, resulting in a unidirectional linear distribution of the thermal conductivity path. This fails to achieve uniform diffusion across the entire surface, easily leading to hot spot accumulation around heating points and causing localized overheating. In summary, to address these issues, improve the efficiency and quality of thermally conductive silicone pads, and reduce losses, this invention was developed. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is: a combined thermally conductive silicone sheet with an embedded thermally conductive structure, comprising: a silicone substrate structure, a heat transfer structure fixedly connected to the inner wall of the silicone substrate structure, the heat transfer structure including a thermally conductive strip, the outer wall of the thermally conductive strip being fixedly connected to the inner wall of the silicone substrate structure, thermally conductive wires fixedly connected between the thermally conductive strips, fixing grooves provided at the top and bottom of the thermally conductive strips, lead-out blocks fixedly connected to both ends of the thermally conductive strips, and splicing thermally conductive blocks fixedly connected to the side walls of the thermally conductive strips.

[0005] Preferably, the heat-conducting strip extends to the edge of the silicone substrate structure and is exposed, and the fixing grooves are evenly distributed along the top and bottom of the heat-conducting strip.

[0006] Preferably, the silicone substrate structure includes a silicone body, an installation groove is formed on the inner wall of the silicone body, a stabilizing protrusion is fixedly connected to the inner wall of the installation groove, a splicing groove is formed on the side wall of the silicone body, and a splicing structure is fixedly connected to the side wall of the silicone body.

[0007] Preferably, the outer wall of the stabilizing protrusion is fixedly connected to the inner wall of the fixing groove, and the splicing groove matches the splicing structure.

[0008] Preferably, the splicing structure includes splicing blocks, the outer wall of which is fixedly connected to the side wall of the silicone body.

[0009] Preferably, a sealing strip is fixedly connected to the top of the side wall of the splicing block, and a splicing heat conduction hole is opened on the inner wall of the splicing block, and the inner wall of the splicing heat conduction hole is fixedly connected to the outer wall of the splicing heat conduction block.

[0010] The beneficial effects of this utility model are as follows: 1. This utility model improves heat conduction efficiency and uniformity by setting a heat transfer structure, thus solving the problem of hot spot accumulation. Compared with the existing technology, which has no embedded heat conduction structure or a single heat conduction path, multiple parallel heat conduction strips can quickly receive the heat transferred by the heating device, and the heat conduction wires between the heat conduction strips can achieve efficient lateral heat diversion, so that the heat can be quickly diffused from the heating point to the entire area of ​​the silicone sheet, effectively avoiding hot spot accumulation.

[0011] 2. By setting a silicone substrate structure, the splicing block on the side wall of the silicone body precisely matches the splicing groove of another silicone sheet. The sealing strip on the top of the splicing block can completely fill the splicing gap, preventing heat loss from the gap. At the same time, the splicing heat-conducting block on the side wall of the heat-conducting strip is simultaneously inserted into the splicing heat-conducting hole on the inner wall of the splicing block, realizing the rigid connection and heat conduction of the heat transfer structure of adjacent silicone sheets. Attached Figure Description

[0012] Figure 1 This is the front view of this utility model; Figure 2 This is a schematic diagram of the heat transfer structure of this utility model; Figure 3 This is a schematic diagram of the silicone matrix structure of this utility model; Figure 4 This is a schematic diagram of the splicing structure of this utility model.

[0013] In the diagram: 1. Silicone substrate structure; 2. Heat transfer structure; 11. Silicone body; 12. Mounting groove; 13. Stabilizing protrusion; 14. Splicing groove; 15. Splicing structure; 21. Heat-conducting strip; 22. Fixing groove; 23. Lead-out block; 24. Heat-conducting wire; 25. Splicing heat-conducting block; 151. Splicing block; 152. Sealing strip; 153. Splicing heat-conducting hole. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example:

[0015] Please see Figure 1 - Figure 2 This utility model provides a technical solution: a combined thermally conductive silicone sheet with an embedded thermally conductive structure, comprising: a silicone substrate structure 1, a heat transfer structure 2 fixedly connected to the inner wall of the silicone substrate structure 1, the heat transfer structure 2 including a heat-conducting strip 21, the outer wall of the heat-conducting strip 21 fixedly connected to the inner wall of the silicone substrate structure 1, a heat-conducting wire 24 fixedly connected between the heat-conducting strips 21, fixing grooves 22 provided at the top and bottom of the heat-conducting strips 21, lead-out blocks 23 fixedly connected at both ends of the heat-conducting strips 21, splicing heat-conducting blocks 25 fixedly connected to the side wall of the heat-conducting strips 21, the heat-conducting strips 21 extending to the edge of the silicone substrate structure 1 and exposed, the fixing grooves 22 being evenly distributed along the top and bottom of the heat-conducting strips 21, first assembling the heat transfer structure 2 into the silicone substrate structure 1, the outer wall of the heat-conducting strip 21 fitting against the inner wall of the silicone substrate structure 1, the fixing grooves 22 at the top and bottom of the heat-conducting strips 21 engaging and fixing with the corresponding structures within the silicone substrate structure 1, to prevent the heat transfer structure 2 from shifting. When the silicone substrate structure 1 is attached to the heating device, heat is first transferred to the exposed lead-out block 23, and then guided into the heat-conducting strip 21. The heat-conducting wires 24 between the heat-conducting strips 21 horizontally distribute the heat, achieving full-area heat conduction and avoiding hot spot accumulation. If splicing is required, the splicing heat-conducting blocks 25 on the sidewalls of the heat-conducting strips 21 can be connected to the corresponding structures of other silicone sheets to ensure continuous heat conduction at the splicing points.

[0016] Please see Figure 3 The silicone substrate structure 1 includes a silicone body 11. An mounting groove 12 is formed on the inner wall of the silicone body 11, and a stabilizing protrusion 13 is fixedly connected to the inner wall of the mounting groove 12. A splicing groove 14 is formed on the side wall of the silicone body 11, and a splicing structure 15 is fixedly connected to the side wall of the silicone body 11. The outer wall of the stabilizing protrusion 13 is fixedly connected to the inner wall of the fixing groove 22. The splicing groove 14 and the splicing structure 15 fit together. The heat-conducting strip 21 of the heat transfer structure 2 is aligned with the mounting groove 12 and embedded. The stabilizing protrusion 13 on the inner wall of the mounting groove 12 precisely engages with the fixing groove 22 of the heat-conducting strip 21. Through the convex-concave fit, the heat transfer structure 2 and the silicone body 11 are rigidly fixed, preventing relative sliding at high temperatures. In use, the contact surface of the silicone body 11 is aligned with the heating device. The flexible characteristics of the silicone body 11 can adapt to the surface contour of the device, ensuring a tight fit. When it is necessary to expand the heat conduction area, the splicing structure 15 on the side wall of the silicone body 11 is connected to the splicing groove 14 of another silicone body 11. The matching design of the splicing groove 14 and the splicing structure 15 ensures the integrity of the spliced ​​parts.

[0017] Please see Figure 4The splicing structure 15 includes a splicing block 151. The outer wall of the splicing block 151 is fixedly connected to the side wall of the silicone body 11. A sealing strip 152 is fixedly connected to the top of the side wall of the splicing block 151. A splicing heat conduction hole 153 is opened on the inner wall of the splicing block 151. The inner wall of the splicing heat conduction hole 153 is fixedly connected to the outer wall of the splicing heat conduction block 25. When a single silicone sheet cannot cover the heating area and needs to be spliced, another silicone sheet with the same structure is taken, and the splicing block 151 in this silicone sheet splicing structure 15 is aligned with the splicing groove 14 of the other silicone sheet and inserted. During the insertion process, the sealing strip 152 on the top of the splicing block 151 gradually fits against the inner wall of the splicing groove 14 to form a sealing structure and prevent heat leakage at the splicing point. At the same time, the splicing heat conduction block 25 on the side wall of the heat conduction strip 21 in the heat transfer structure 2 is simultaneously inserted into the splicing heat conduction hole 153 on the inner wall of the splicing block 151, realizing the rigid connection and heat conduction of the adjacent silicone sheet heat transfer structures 2. After splicing, the sealing strip 152 fills the splicing gap, and the splicing heat-conducting block 25 ensures that heat is transferred without interruption at the splicing point, so that the spliced ​​silicone sheets form a continuous heat-conducting system.

[0018] Working principle: In use, the heat transfer structure 2 is first assembled into the silicone substrate structure 1. The outer wall of the heat-conducting strip 21 is attached to the inner wall of the silicone substrate structure 1. The fixing grooves 22 at the top and bottom of the heat-conducting strip 21 are engaged and fixed with the corresponding structures in the silicone substrate structure 1 to prevent the heat transfer structure 2 from shifting. When the silicone substrate structure 1 is attached to the heating device, the heat is first transferred to the exposed lead-out block 23, and then introduced into the heat-conducting strip 21. The heat-conducting wires 24 between the heat-conducting strips 21 divert the heat laterally, achieving full-area heat conduction and avoiding hot spot accumulation. If splicing is required, the splicing heat-conducting block 25 on the side wall of the heat-conducting strip 21 can be connected to the corresponding structure of other silicone sheets to ensure continuous heat conduction at the splice. The heat-conducting strip 21 of the heat transfer structure 2 is aligned with the mounting groove 12 and embedded. The stabilizing protrusion 13 on the inner wall of the mounting groove 12 is precisely engaged in the fixing groove 22 of the heat-conducting strip 21. The convex and concave fit achieves rigid fixation between the heat transfer structure 2 and the silicone body 11, preventing relative sliding at high temperatures. During use, the contact surface of the silicone body 11 is aligned with the heating device. The flexible nature of the silicone body 11 adapts to the surface contour of the device, ensuring a tight fit. When it is necessary to expand the heat conduction area, the splicing structure 15 on the side wall of the silicone body 11 is connected to the splicing groove 14 of another silicone body 11. The matching design of the splicing groove 14 and the splicing structure 15 ensures the integrity of the spliced ​​structure. When a single silicone sheet cannot cover the heating area and splicing is required, another silicone sheet with the same structure is taken, and the splicing block 151 in the splicing structure 15 of this silicone sheet is aligned with the splicing groove 14 of the other silicone sheet and inserted. During the insertion process, the sealing strip 152 on the top of the splicing block 151 gradually adheres to the inner wall of the splicing groove 14, forming a sealing structure to prevent heat leakage at the splicing point. At the same time, the splicing heat conduction block 25 on the side wall of the heat conduction strip 21 in the heat transfer structure 2 is simultaneously inserted into the splicing heat conduction hole 153 on the inner wall of the splicing block 151, realizing the rigid connection and heat conduction of the adjacent silicone sheet heat transfer structures 2. After splicing, the sealing strip 152 fills the splicing gap, and the splicing heat-conducting block 25 ensures that heat is transferred without interruption at the splicing point, so that the spliced ​​silicone sheets form a continuous heat-conducting system.

[0019] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A combined thermally conductive silicone sheet with an embedded thermally conductive structure, comprising a silicone substrate structure (1), characterized in that: The inner wall of the silicone matrix structure (1) is fixedly connected to a heat transfer structure (2); The heat transfer structure (2) includes a heat-conducting strip (21), the outer wall of the heat-conducting strip (21) is fixedly connected to the inner wall of the silicone matrix structure (1), heat-conducting wires (24) are fixedly connected between the heat-conducting strips (21), a fixing groove (22) is provided at the top and bottom of the heat-conducting strip (21), an outlet block (23) is fixedly connected at both ends of the heat-conducting strip (21), and a splicing heat-conducting block (25) is fixedly connected to the side wall of the heat-conducting strip (21).

2. The combined thermally conductive silicone sheet with an embedded thermally conductive structure according to claim 1, characterized in that: The heat-conducting strip (21) extends to the edge of the silicone substrate structure (1) and is exposed, and the fixing groove (22) is evenly distributed along the top and bottom of the heat-conducting strip (21).

3. The combined thermally conductive silicone sheet with an embedded thermally conductive structure according to claim 1, characterized in that: The silicone substrate structure (1) includes a silicone body (11), an installation groove (12) is provided on the inner wall of the silicone body (11), a stabilizing protrusion (13) is fixedly connected to the inner wall of the installation groove (12), a splicing groove (14) is provided on the side wall of the silicone body (11), and a splicing structure (15) is fixedly connected to the side wall of the silicone body (11).

4. The combined thermally conductive silicone sheet with an embedded thermally conductive structure according to claim 3, characterized in that: The outer wall of the stabilizing protrusion (13) is fixedly connected to the inner wall of the fixing groove (22), and the splicing groove (14) matches the splicing structure (15).

5. The combined thermally conductive silicone sheet with an embedded thermally conductive structure according to claim 4, characterized in that: The splicing structure (15) includes a splicing block (151), the outer wall of which is fixedly connected to the side wall of the silicone body (11).

6. The combined thermally conductive silicone sheet with an embedded thermally conductive structure according to claim 5, characterized in that: A sealing strip (152) is fixedly connected to the top of the side wall of the splicing block (151), and a splicing heat conduction hole (153) is opened on the inner wall of the splicing block (151). The inner wall of the splicing heat conduction hole (153) is fixedly connected to the outer wall of the splicing heat conduction block (25).