Composite heat-conducting silica gel sheet

Abstract

The utility model relates to the technical field of heat-conducting silica gel sheets, in particular to a composite heat-conducting silica gel sheet, which comprises a silica gel sheet body, heat-conducting glue layers are arranged on the top surface and the bottom surface of the silica gel sheet body, protective paper is arranged on the heat-conducting glue layers, a folded edge is arranged on one side of the protective paper and fixedly connected with two drawstrings, and the two drawstrings are arranged on the top surface and the bottom surface of the silica gel sheet body. The silica gel sheet body is fixedly connected with two side pads. According to the utility model, the pull belt is fixedly connected through the folding edge, so that the silica gel sheet body can be directly attached to the heating component, the side pad is attached to the side edge of the heating component, the silica gel sheet body is positioned through the side pad, and after the silica gel sheet body is aligned with the heating component, the pull belt can be pulled, so that one side of the protective paper is pulled open, and the heat-conducting glue layer is gradually exposed; the heat-conducting glue layer is adhered to the heating component, so that the silica gel sheet body can be successfully adhered at one time, and the adhesion effect of the heat-conducting glue layer is prevented from being influenced by repeated uncovering as much as possible.

Description

Technical Field

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

[0002] Thermally conductive silicone pads are a type of thermally conductive filler material. They are synthesized using silicone as a base material and various auxiliary materials such as metal oxides. These pads fill the gaps between heat-generating and heat-dissipating components, transferring heat from the heat-generating part to the heat-dissipating part for heat dissipation. Existing composite thermally conductive silicone pads sometimes have a thermally conductive adhesive layer on them, which is used to bond the silicone pad to the heat-generating component. However, when bonding the silicone pad to the heat-generating component, some relatively small components may experience positional shifts during the bonding process. This necessitates peeling off the silicone pad and re-bonding it, which is relatively troublesome. Furthermore, repeated peeling may affect the adhesion of the thermally conductive adhesive layer. Utility Model Content

[0003] The purpose of this invention is to provide a composite thermally conductive silicone sheet to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A composite thermally conductive silicone pad includes a silicone pad body. A thermally conductive adhesive layer is provided on both the top and bottom surfaces of the silicone pad body. A protective paper is provided on the thermally conductive adhesive layer. The silicone pad body is located between the two protective papers. The protective paper protects the thermally conductive adhesive layer. A folded edge is provided on one side of the protective paper. Two pull straps are fixedly connected to the folded edge. The pull strap located at the bottom of the silicone pad body is perpendicular to the pull strap located at the top of the silicone pad body. Two side pads are fixedly connected to the silicone pad body.

[0006] Furthermore, the pull strap is provided with an adhesive surface, which is located on the side of the pull strap away from the protective paper.

[0007] Furthermore, the side pad is fixedly connected to a metal pad, which is located on the side of the side pad away from the silicone sheet body.

[0008] Furthermore, the silicone sheet body has four L-shaped grooves, and the silicone sheet body is equipped with several connectors.

[0009] Furthermore, the connector includes two L-shaped blocks, which are fixed to each other. The cross-section of each L-shaped block is trapezoidal. The two L-shaped blocks are symmetrically arranged, and the small ends of the two L-shaped blocks are fixed to each other.

[0010] Furthermore, the L-shaped blocks are fixedly connected to a circular surface, which is located on the side of the two L-shaped blocks that are far apart from each other.

[0011] Preferably, the silicone sheet body is equipped with a plurality of plug-in parts II, the cross-section of the plug-in parts II is trapezoidal, and the plug-in parts II have the same structure as the L-shaped block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The silicone pad is fixed by a pull strap via a folded edge. Protective paper can be used to protect the thermally conductive adhesive layer. When placing the silicone pad onto the heating element, it can be directly attached to the heating element, with the side pads positioned on the side of the heating element. This facilitates quick placement of the silicone pad onto the heating element. After aligning the silicone pad with the heating element, pull the pull strap to open the folded edge, gradually revealing the thermally conductive adhesive layer. This allows the adhesive layer to adhere to the heating element. Aligning the silicone pad first and then peeling off the protective paper ensures successful adhesion in one step, minimizing the need for repeated peeling that could affect the bonding effect. Furthermore, the thermally conductive adhesive layer can be used to bond two silicone pads together. The number of silicone pads can be increased depending on the distance between the heating and cooling components, improving the adaptability of the silicone pad design.

[0014] 2. The silicone sheet body is equipped with a connector. After the two silicone sheet bodies are bonded together, the connector can be inserted into the L-shaped groove of the two silicone sheet bodies to connect them. This prevents the two silicone sheet bodies from sliding against each other. When the adhesion performance of the thermally conductive adhesive layer decreases after a certain period of operation, the connector can be used to assist in connecting the silicone sheet bodies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a composite thermally conductive silicone sheet according to this utility model;

[0016] Figure 2 This is a schematic diagram of the mutual bonding structure of the silicone sheet bodies in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the L-shaped groove in this utility model;

[0018] Figure 4 This is a schematic diagram of the connector structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the protective paper structure in this utility model;

[0020] Figure 6This is a schematic diagram of the folded edge structure in this utility model.

[0021] In the diagram: 10. Silicone sheet body; 11. L-shaped groove; 20. Protective paper; 21. Folded edge; 22. Pull strap; 23. Adhesive surface; 30. Side pad; 31. Metal pad; 40. Connector 1; 41. L-shaped block; 42. Round surface; 50. Connector 2. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 In this embodiment of the present invention, a composite thermally conductive silicone pad includes a silicone pad body 10. A thermally conductive adhesive layer is provided on both the top and bottom surfaces of the silicone pad body 10. A protective paper 20 is provided on the thermally conductive adhesive layer. The silicone pad body 10 is located between two protective papers 20. The protective paper 20 is used to protect the thermally conductive adhesive layer. A folded edge 21 is provided on one side of the protective paper 20. Two pull straps 22 are fixedly connected to the folded edge 21. The pull strap 22 located at the bottom of the silicone pad body 10 is perpendicular to the pull strap 22 located at the top of the silicone pad body 10. Two side pads 30 are fixedly connected to the silicone pad body 10. A metal pad 31 is fixedly connected to the side pad 30. The metal pad 31 is located on the side of the side pad 30 away from the silicone pad body 10. The metal pad 31 can support the side pad 30, which helps maintain the shape of the side pad 30.

[0024] Specifically, the thermally conductive adhesive layer can be protected by the protective paper 20. When the silicone sheet body 10 needs to be placed on the heating element, the silicone sheet body 10 can be directly attached to the heating element, and the side pad 30 can be attached to the side of the heating element. The side pad 30 positions the silicone sheet body 10, which facilitates the quick positioning of the silicone sheet body 10 on the heating element. After aligning the silicone sheet body 10 with the heating element, the middle of the silicone sheet body 10 can be held down, and then the pull strap 22 can be pulled. The pull strap 22 can pull the folded edge 21, which opens one side of the protective paper 20, thus revealing the thermally conductive adhesive layer. Gradually expose the silicone sheet body 10, then smooth it out so that the exposed thermally conductive adhesive layer is adhered to the heating element, thus initially adhering the silicone sheet body 10 to the heating element. Then, continue to pull the protective paper 20 open, thereby gradually adhering the thermally conductive adhesive layer to the heating element. In this way, during the bonding process, the silicone sheet body 10 can be aligned first, and then the protective paper 20 can be peeled off, which is conducive to successful bonding of the silicone sheet body 10 in one go. Try to avoid repeatedly peeling it off, which will affect the bonding effect of the thermally conductive adhesive layer. The heat dissipation component can be adhered to the top of the silicone sheet body 10, and then the heat dissipation component can be fixed to the corresponding housing or circuit board.

[0025] When the distance between the heating element and the heat dissipation element is large, the two silicone sheet bodies 10 can be placed against each other, with the top of one silicone sheet body 10 against the bottom of the other silicone sheet body 10, and the side pads 30 of the two silicone sheet bodies 10 perpendicular to each other. The two silicone sheet bodies 10 are then interlocked through the side pads 30. At this time, the pull strap 22 at the top of one silicone sheet body 10 will be parallel to the pull strap 22 at the bottom of the other silicone sheet body 10. After pinching the middle of the two silicone sheet bodies 10, the side of the other silicone sheet body 10 can be lifted to expose the pull strap 22. Then, the pull strap 22 can be pulled to peel off the protective paper 20 at the top of one silicone sheet body 10 and the protective paper 20 at the bottom of the other silicone sheet body 10, thereby bonding the two silicone sheet bodies 10 together through the thermally conductive adhesive layer. In this way, the number of silicone sheet bodies 10 can be increased according to the distance between the heating element and the heat dissipation element, and several silicone sheet bodies 10 can be filled between the heating element and the heat dissipation element, which helps to improve the adaptability of the silicone sheet bodies 10.

[0026] Example 1

[0027] like Figure 1-5 As shown, in this embodiment, the silicone sheet body 10 has four L-shaped grooves 11. The silicone sheet body 10 is equipped with several connectors 40. Each connector 40 includes two L-shaped blocks 41, which are fixed to each other. The cross-section of each L-shaped block 41 is trapezoidal. The L-shaped blocks 41 correspond to the L-shaped grooves 11. The two L-shaped blocks 41 are symmetrically arranged. The small ends of the two L-shaped blocks 41 are fixed to each other. A circular surface 42 is fixedly connected to each L-shaped block 41. The circular surface 42 is located on the side of the two L-shaped blocks 41 that is far apart from each other.

[0028] In specific implementation, after the two silicone sheet bodies 10 are bonded together, the connector 40 can be inserted into the L-shaped groove 11 of the two silicone sheet bodies 10 to connect them. The round surface 42 facilitates the insertion of the L-shaped block 41 into the L-shaped groove 11, allowing one L-shaped block 41 of the connector 40 to be located inside one silicone sheet body 10 and the other L-shaped block 41 of the connector 40 to be located inside the other silicone sheet body 10. The connector 40 can prevent the two silicone sheet bodies 10 from sliding against each other. When the adhesion performance of the thermally conductive adhesive layer decreases after a certain period of operation, the connector 40 can be used to assist in the connection of the two silicone sheet bodies 10, which helps to improve the stability of the connection of several silicone sheet bodies 10. The connector 40 is wider at the top and bottom and narrower in the middle, which helps to keep the connector 40 inside the two L-shaped grooves 11.

[0029] like Figure 1 As shown, in this embodiment, the pull strap 22 is provided with an adhesive surface 23, which is located on the side of the pull strap 22 away from the protective paper 20.

[0030] In practice, the folded edge 21 can be bent in the opposite direction so that it is attached to the side of the silicone sheet body 10, and the pull strap 22 can be wrapped around the bottom of the silicone sheet body 10. At this time, the adhesive surface 23 can be attached to the protective paper 20 at the bottom. This can minimize the risk of the protective paper 20 curling up due to the bending of the folded edge 21, which is beneficial for the preservation of the silicone sheet body 10.

[0031] Example 2

[0032] Based on Example 1, such as Figure 4 As shown, in this embodiment, the silicone sheet body 10 is equipped with several plug-in parts 50. The cross-section of the plug-in parts 50 is trapezoidal, and the plug-in parts 50 have the same structure as the L-shaped block 41.

[0033] In specific implementation, after the two silicone sheet bodies 10 are bonded together, a second connector 50 can be filled into the L-shaped groove 11 first, and then a first connector 40 can be inserted into the L-shaped groove 11. The second connector 50 is pushed downward by the first connector 40, so that the second connector 50 enters the bottom silicone sheet body 10. The second connector 50 supports and limits the first connector 40 at the top. Another second connector 50 can be filled into the L-shaped groove 11. The second second connector 50 blocks the top of the first connector 40, thereby maintaining the position of the first connector 40 and minimizing displacement of the first connector 40.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite thermally conductive silicone pad, comprising a silicone pad body (10), wherein a thermally conductive adhesive layer is disposed on both the top and bottom surfaces of the silicone pad body (10), and a protective paper (20) is disposed on the thermally conductive adhesive layer, characterized in that, The protective paper (20) has a folded edge (21) on one side, and the folded edge (21) is fixedly connected to two pull straps (22). The silicone sheet body (10) is fixedly connected to two side pads (30).

2. The composite thermally conductive silicone sheet according to claim 1, characterized in that, The pull strap (22) is provided with an adhesive surface (23).

3. The composite thermally conductive silicone sheet according to claim 1, characterized in that, The side pad (30) is fixedly connected to a metal pad (31).

4. The composite thermally conductive silicone sheet according to any one of claims 1-3, characterized in that, The silicone sheet body (10) has four L-shaped grooves (11), and the silicone sheet body (10) is equipped with several plug-in parts (40).

5. The composite thermally conductive silicone sheet according to claim 4, characterized in that, The first connector (40) includes two L-shaped blocks (41), which are fixed to each other, and the cross-section of the L-shaped blocks (41) is trapezoidal.

6. The composite thermally conductive silicone sheet according to claim 5, characterized in that, The L-shaped block (41) is fixedly connected to a circular surface (42).

7. The composite thermally conductive silicone sheet according to claim 5, characterized in that, The silicone sheet body (10) is equipped with several plug-in parts (50), and the cross-section of the plug-in parts (50) is trapezoidal.

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