A composite thermally conductive silicone sheet

Abstract

This utility model relates to a thermally conductive sheet, specifically a composite thermally conductive silicone sheet. The composite thermally conductive silicone sheet includes a substrate sheet with several grooves. A filler is disposed between adjacent grooves. Multiple sets of fillers are provided, and each set of fillers has a limiting strip at one end near the substrate sheet. These limiting strips are collectively disposed on a retaining sheet and connected as a whole. The multiple sets of fillers are evenly distributed on the substrate sheet, and each filler has grooves on both sides. This composite thermally conductive silicone sheet reduces cracking of the substrate sheet under pressure and prevents irregular escape of some substrate material. It better fills the gaps between the heat-generating component and the heat-dissipating component, reducing the probability of large gaps after installation. The retaining sheet reduces overflow at the edges, ensuring the substrate at the edges adheres tightly to both the heat-generating component and the heat-dissipating component.

Description

Technical Field

[0001] This utility model relates to a heat-conducting sheet, specifically a composite heat-conducting silicone sheet. Background Technology

[0002] Thermally conductive silicone pads are thermally conductive media materials synthesized with silicone as the base material and the addition of auxiliary materials such as metal oxides. They are also known as thermally conductive silicone pads or soft thermally conductive pads. The core function of thermally conductive silicone pads is to fill the gap between heat-generating components and heat-dissipating components, thereby achieving efficient heat conduction by reducing contact thermal resistance. They also have functions such as insulation, shock absorption, and sealing.

[0003] Existing thermal conductive silicone pads have a complex structure and unreasonable design. The substrate structure of the thermal conductive silicone pad is very fragile, and it will quickly generate irregular and uncontrollable escape movement after being squeezed. If the installation method is not correct, some areas between the heat-generating component and the heat dissipation component may be filled with too much thermal conductive silicone pad, while other areas may have large gaps. In addition, during installation, the thermal conductive silicone pad squeezed to the edge will overflow, failing to fit well with the heat-generating component and the heat dissipation component, resulting in poor heat dissipation at the edge. To address these issues, the inventors have improved the structure of the thermal conductive silicone pad. Utility Model Content

[0004] The purpose of this invention is to provide a composite thermally conductive silicone pad. This composite thermally conductive silicone pad has a simple structure and reasonable design, which reduces the occurrence of cracks in the substrate after being compressed and the irregular escape of some substrate. It better fills the gap between the heat-generating component and the heat dissipation component, reduces the probability of large gaps after the composite thermally conductive silicone pad is installed, and the overflow phenomenon in the edge area can be reduced by the material blocking sheet. The substrate in the edge area will be in close contact with the heat-generating component and the heat dissipation component. It solves the problems mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite thermally conductive silicone sheet, the composite thermally conductive silicone sheet including a substrate sheet, a plurality of grooves being provided on the substrate sheet, a sealant being provided between two adjacent grooves, multiple sets of sealants being provided, and a limiting strip being provided at one end of each set of sealants near the substrate sheet, the multiple limiting strips being provided together on a resistive sheet, and the multiple limiting strips being connected as a whole through the resistive sheet.

[0006] Preferably, multiple sets of sealant are evenly distributed on the substrate sheet, and each sealant has grooves on both sides.

[0007] Preferably, multiple sets of sealant are distributed at equal intervals on the substrate sheet, with each set of sealant having multiple pieces, and they are arranged in a straight line.

[0008] Preferably, the depth of the groove is between 1 mm and 2 mm, and the height of the sealant is between 1.5 mm and 2.5 mm.

[0009] Preferably, the multiple limiting strips are all in the shape of a straight line, and the multiple limiting strips are all filled inside the substrate sheet.

[0010] Preferably, the material blocking sheet is in the shape of a square, and a filling groove is provided through the material blocking sheet. Multiple limiting strips are provided in the filling groove, and both ends of each limiting strip are connected to the material blocking sheet.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a composite thermally conductive silicone pad, which includes a substrate sheet. The overall structure is simple and reasonably designed. The substrate sheet has several grooves, and a sealant is placed between two adjacent grooves. By setting several evenly distributed grooves on the surface of the substrate sheet and placing a sealant between every two adjacent grooves, when the whole is subjected to pressure during use, most of the structure of the sealant will contract into the grooves on both sides, quickly filling the grooves on both sides. This ensures that the flow direction of the sealant is more controllable, reduces the occurrence of cracks in the substrate sheet after being compressed, and reduces the irregular escape of some substrate material. It better fills the gap between the heat-generating component and the heat dissipation component, reducing the probability of large gaps after the composite thermally conductive silicone pad is installed, making it suitable for widespread use.

[0012] 2. The sealant in this utility model is provided in multiple sets, and each set of sealants has a limiting strip at one end near the substrate. The multiple limiting strips are jointly set on the blocking sheet. The blocking sheet is U-shaped and has a filling groove running through it. The multiple limiting strips are set in the filling groove. By setting the U-shaped blocking sheet around the substrate, the blocking sheet limits the substrate to a certain extent. When the substrate moves towards the edge area under pressure, the presence of the blocking sheet can reduce the overflow phenomenon. The part of the substrate located in the edge area will also be in close contact with the heat-generating component and heat dissipation component, thus improving the heat dissipation effect and making it highly practical. Attached Figure Description

[0013] Figure 1 This is the front view of the present utility model.

[0014] Figure 2 This is a structural diagram of the present utility model.

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] Figure 4 This is a schematic diagram of the limiting strip and the resisting sheet of this utility model.

[0017] The reference numerals and names in the figure are as follows: 1. Matrix sheet; 101. Groove; 2. Sealing material; 3. Limiting strip; 4. Material blocking strip; 401. Filler groove. Detailed Implementation

[0018] 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.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] Please see Figure 1 One embodiment of this utility model is a composite thermally conductive silicone sheet, which includes a substrate sheet 1.

[0022] Please see Figure 2A plurality of grooves 101 are provided on the substrate 1, and a sealant 2 is provided between two adjacent grooves 101. Multiple sets of sealants 2 are provided, and the multiple sets of sealants 2 are distributed at equal intervals on the substrate 1. Each set of sealants 2 is provided with multiple sealants, and they are arranged in a straight line. The depth of the grooves 101 is between 1 mm and 2 mm, and the height of the sealant 2 is between 1.5 mm and 2.5 mm.

[0023] Please see Figure 3 Multiple sets of sealant 2 are evenly distributed on the substrate sheet 1, and each sealant 2 has a groove 101 on both sides. Each set of sealant 2 has a limiting strip 3 at one end near the substrate sheet 1. Multiple limiting strips 3 are set together on the material blocking sheet 4, and multiple limiting strips 3 are connected into one piece through the material blocking sheet 4. When the composite thermal conductive silicone sheet is under pressure, most of the structure of the sealant 2 will shrink into the grooves 101 on both sides, quickly filling the grooves 101 on both sides. This ensures that the flow direction of the sealant 2 is more controllable, and reduces the occurrence of cracks in the substrate sheet 1 after being pressed and the irregular escape of some substrate. It better fills the gap between the heat-generating component and the heat dissipation component, and reduces the probability of large gaps after installation.

[0024] Please see Figure 4 Multiple limiting strips 3 are all in a straight line shape, and multiple limiting strips 3 and resistive sheet 4 are filled inside the substrate sheet 1 to form a composite structure. The resistive sheet 4 is in a square shape, and a filling groove 401 is provided through the resistive sheet 4. Multiple limiting strips 3 are all set in the filling groove 401, and both ends of each limiting strip 3 are connected to the resistive sheet 4. The resistive sheet 4 limits the substrate sheet 1 to a certain extent. When the substrate sheet 1 moves towards the edge area after being subjected to pressure, the presence of the resistive sheet 4 can reduce the overflow phenomenon. The part of the substrate located in the edge area will also be in close contact with the heat-generating component and heat dissipation component, thus helping to improve the heat dissipation effect.

[0025] 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.

Claims

1. A composite thermally conductive silicone sheet, characterized in that: The substrate (1) includes a base sheet (1) with a plurality of grooves (101) and a filler (2) between two adjacent grooves (101). The filler (2) is provided in multiple sets, and each set of filler (2) is provided with a limiting strip (3) at one end near the base sheet (1). The multiple limiting strips (3) are provided together on a material blocking sheet (4), and the multiple limiting strips (3) are connected as one unit through the material blocking sheet (4).

2. The composite thermally conductive silicone sheet according to claim 1, characterized in that: Multiple sets of the sealant (2) are evenly distributed on the substrate sheet (1), and each sealant (2) has a groove (101) on both sides.

3. The composite thermally conductive silicone sheet according to claim 1, characterized in that: Multiple sets of the sealant (2) are distributed at equal intervals on the substrate (1). Each set of sealant (2) has multiple pieces, which are arranged in a straight line.

4. The composite thermally conductive silicone sheet according to claim 1, characterized in that: The depth of the groove (101) is between 1 mm and 2 mm, and the height of the filler (2) is between 1.5 mm and 2.5 mm.

5. The composite thermally conductive silicone sheet according to claim 1, characterized in that: The multiple limiting strips (3) are all in the shape of a line, and the multiple limiting strips (3) are all filled inside the substrate sheet (1).

6. The composite thermally conductive silicone sheet according to claim 1, characterized in that: The material blocking sheet (4) is shaped like a square, and a filling groove (401) is provided through the material blocking sheet (4). Multiple limiting strips (3) are provided in the filling groove (401), and both ends of each limiting strip (3) are connected to the material blocking sheet (4).

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