Heat-conducting double-faced adhesive tape with high insulation

Abstract

The heat-conducting double-sided adhesive tape comprises an inner silica gel base layer, fiber reinforcing layers are adhered to the upper outer surface and the lower outer surface of the inner silica gel base layer through glue, heat-conducting insulating layers are fixedly connected to the outer walls of the upper fiber reinforcing layer and the lower fiber reinforcing layer, and inner flame-retardant layers are fixedly connected to the outer walls of the two heat-conducting insulating layers. The internal structure of the heat-conducting double-sided adhesive tape has a good heat-conducting effect and good insulativity at the same time, normal insulation and heat conduction use of the heat-conducting double-sided adhesive tape can be guaranteed, the heat-conducting double-sided adhesive tape can be used in cooperation with the outer surface layer, and the heat-conducting double-sided adhesive tape has the advantages of being good in heat-conducting effect, good in heat-conducting effect and good in heat-conducting effect. The heat-conducting double-sided adhesive tape has the use effect of internal and external double insulation and has the use technical characteristic of high insulativity, the upper and lower surfaces of the inner silica gel base layer are respectively provided with a double-layer heat-conducting insulation structure, and the double-layer structural design can effectively improve the double-sided insulativity of the heat-conducting double-sided adhesive tape.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive double-sided adhesive technology, specifically a thermally conductive double-sided adhesive with high insulation. Background Technology

[0002] In today's era of continuous research and development in high technology, the thermal conductive materials industry is also emerging, and the application method of thermally conductive double-sided tape plays a crucial role. Because ordinary thermally conductive materials are difficult to provide both thermal conductivity and good adhesion for critical electronic components, thermally conductive double-sided tape completely solves this problem; it plays a particularly important role in the electronics, LED lighting, and LED TV industries.

[0003] However, most existing thermally conductive double-sided adhesives only have a single-layer insulating and thermally conductive structure. In actual use, they cannot achieve the double-sided insulation effect of thermally conductive adhesives, and their double-layer insulation performance is poor, which limits their use. Therefore, this utility model proposes a high-insulation thermally conductive double-sided adhesive that can achieve double-sided thermal insulation. Utility Model Content

[0004] The purpose of this invention is to provide a highly insulating thermally conductive double-sided adhesive to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly insulating thermally conductive double-sided adhesive, comprising an inner silicone base layer, with fiber reinforcing layers adhered to the upper and lower outer surfaces of the inner silicone base layer by adhesive, thermally conductive insulating layers fixedly connected to the outer walls of the upper and lower fiber reinforcing layers, an inner flame-retardant layer fixedly connected to the outer walls of the two sets of thermally conductive insulating layers, an outer layer bonded to the outer surface of the inner flame-retardant layer by adhesive, a thermally conductive insulating plate filled inside the thermally conductive insulating layer, and an outer silicone layer wrapped around the thermally conductive insulating plate.

[0006] Preferably, the thermally conductive insulating plate is filled with alumina powder, and the outer silicone layer is thermally conductive silicone.

[0007] Preferably, the fiber reinforcement layer is provided with a plurality of primary and secondary fiber filaments, which are arranged at an incline and cross each other, and together form a fiber reinforcement mesh.

[0008] Preferably, the primary fiber and the secondary fiber are either carbon fiber or high molecular weight polyethylene fiber.

[0009] Preferably, the outer layer is made of polyethylene material.

[0010] Preferably, the inner flame-retardant layer is woven from flame-retardant fibers, and the flame-retardant fibers are glass fibers.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The internal structure of this thermally conductive double-sided adhesive has both good thermal conductivity and excellent insulation, ensuring normal insulation and thermal conductivity. When used in conjunction with the outer layer, this invention provides dual insulation, both internally and externally, exhibiting high insulation performance. Furthermore, the inner silicone base layer has double-layered thermally conductive and insulating structures on both its upper and lower surfaces. This double-layered design effectively enhances the double-sided insulation of the thermally conductive double-sided adhesive, thereby expanding the overall applicability of the product and reducing usage limitations.

[0013] Meanwhile, the fiber reinforcement layer effectively improves the toughness and tensile strength of the inner base layer of this invention, preventing it from being easily torn by external forces, thereby extending the service life of the thermally conductive double-sided adhesive and providing a better internal reinforcement effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal separation structure of the thermally conductive double-sided adhesive according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional planar structure of the thermally conductive double-sided adhesive according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the fiber reinforcement layer in an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the thermally conductive insulating layer in an embodiment of this utility model.

[0018] In the diagram: 1. Inner silicone base layer; 2. Fiber reinforcement layer; 201. Primary fiber filament; 202. Secondary fiber filament; 3. Thermally conductive insulating layer; 301. Thermally conductive insulating board; 302. Outer silicone layer; 4. Inner flame retardant layer; 5. Outer layer. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a highly insulating thermally conductive double-sided adhesive, comprising an inner silicone base layer 1. Fiber reinforcing layers 2 are adhered to both the upper and lower outer surfaces of the inner silicone base layer 1 via adhesive. The fiber reinforcing layers 2 are used to strengthen the internal structure, thereby giving the thermally conductive double-sided adhesive of this utility model better internal tensile strength, improving the internal structural strength, preventing easy tearing, and improving performance. Thermally conductive insulating layers 3 are fixedly connected to the outer walls of both sets of fiber reinforcing layers 2. Inner flame-retardant layers 4 are fixedly connected to the outer walls of both sets of thermally conductive insulating layers 3. The inner flame-retardant layers 4 are woven from flame-retardant fibers. The flame-retardant fiber is glass fiber, which has excellent insulation, heat resistance, corrosion resistance and high mechanical strength. The inner flame-retardant layer 4 can achieve a good internal flame-retardant effect, while also having a certain internal structural strength and good performance. The outer surface of the inner flame-retardant layer 4 is bonded with an outer layer 5 by adhesive. The outer layer 5 is made of polyethylene material. The outer layer 5 made of polyethylene material can effectively improve the smoothness of the outer surface structure of this utility model, and has a waxy feel, thereby effectively improving the touch and appearance of the product. In addition, polyethylene material also has a certain degree of insulation, thereby achieving the external insulation performance characteristics.

[0023] The thermally conductive insulating layer 3 is filled with a thermally conductive insulating plate 301, and the thermally conductive insulating plate 301 is wrapped with an outer silicone layer 302.

[0024] Furthermore, the thermally conductive insulating plate 301 is filled with alumina powder, which is high-purity alumina powder, and the outer silicone layer 302 is thermally conductive silicone.

[0025] This structural design, with the alumina powder filled inside the thermally conductive insulating plate 301, has good thermal conductivity and electrical insulation. When used in this invention, the internal structure of the thermally conductive double-sided adhesive has both good thermal conductivity and good insulation, ensuring the normal insulating and thermally conductive use of the adhesive. When used in conjunction with the outer layer 5, this invention has a dual insulation effect, both internally and externally, exhibiting high insulation performance. Furthermore, the inner silicone base layer 1 has double-layered thermally conductive insulating structures on both its upper and lower surfaces. This double-layered design effectively improves the double-sided insulation of the thermally conductive double-sided adhesive, significantly expanding the overall applicability of the product and reducing usage limitations.

[0026] In this embodiment, a plurality of primary fiber filaments 201 and secondary fiber filaments 202 are disposed inside the fiber reinforcement layer 2. The primary fiber filaments 201 and secondary fiber filaments 202 are arranged at an incline and cross each other, and the primary fiber filaments 201 and secondary fiber filaments 202 together form a fiber reinforcement mesh.

[0027] Among them, the primary fiber filament 201 and the secondary fiber filament 202 are either carbon fiber or high molecular weight polyethylene fiber. The fiber reinforcement layer 2 can effectively improve the toughness and tensile strength of the inner base layer of this utility model, and will not be easily torn by external forces, thereby extending the service life of the thermally conductive double-sided adhesive and having a good internal reinforcement effect.

[0028] Working principle: This utility model has a thermally conductive insulating layer 3 and an outer layer 5 on both the upper and lower surfaces of the inner silicone base layer 1. The outer layer 5, made of polyethylene material, can effectively improve the smoothness of the outer surface structure of this utility model, and has a waxy feel, thereby effectively improving the touch and appearance of the product. In addition, polyethylene material also has a certain degree of insulation, thereby achieving the external insulation performance characteristics.

[0029] The thermally conductive insulating layer 3 is filled with a thermally conductive insulating plate 301, and the thermally conductive insulating plate 301 is wrapped with an outer silicone layer 302. The alumina powder filled inside the thermally conductive insulating plate 301 has good thermal conductivity and electrical insulation. When used in this utility model, the internal structure of the thermally conductive double-sided adhesive has good thermal conductivity and good insulation, which can ensure the normal insulation and thermal conduction of the thermally conductive double-sided adhesive. When used in conjunction with the outer layer 5, this utility model has a double insulation effect, with high insulation performance. The inner silicone base layer 1 has a double-layer thermally conductive insulating structure on both the top and bottom surfaces. The double-layer structure design can effectively improve the double-sided insulation of the thermally conductive double-sided adhesive, effectively improve the overall applicability of the product, and reduce the limitations of use.

[0030] The inner flame-retardant layer 4 has excellent insulation, heat resistance, corrosion resistance and high mechanical strength. The inner flame-retardant layer 4 can play a good internal flame-retardant effect, while also having a certain internal structural strength and good performance.

[0031] Finally, the fiber reinforcement layer 2 effectively improves the toughness and tensile strength of the inner base layer of this invention, preventing it from being easily torn by external forces, thereby extending the service life of the thermally conductive double-sided adhesive and providing a good internal reinforcement effect.

[0032] 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 highly insulating, thermally conductive double-sided adhesive, comprising an inner silicone base layer (1), characterized in that, The inner silicone base layer (1) has fiber reinforcement layers (2) adhered to its upper and lower outer surfaces by adhesive. The outer walls of the two sets of fiber reinforcement layers (2) are fixedly connected to thermally conductive insulating layers (3). The outer walls of the two sets of thermally conductive insulating layers (3) are fixedly connected to inner flame retardant layers (4). The outer surface of the inner flame retardant layer (4) is bonded to an outer layer (5) by adhesive. The thermally conductive insulating layer (3) is filled with a thermally conductive insulating plate (301). The thermally conductive insulating plate (301) is wrapped with an outer silicone layer (302).

2. The thermally conductive double-sided adhesive with high insulation according to claim 1, characterized in that: The thermally conductive insulating plate (301) is filled with alumina powder, and the outer silicone layer (302) is thermally conductive silicone.

3. The thermally conductive double-sided adhesive with high insulation according to claim 1, characterized in that: The fiber reinforcement layer (2) is provided with a number of primary fiber filaments (201) and secondary fiber filaments (202). The primary fiber filaments (201) and secondary fiber filaments (202) are arranged at an angle and cross each other. The primary fiber filaments (201) and secondary fiber filaments (202) together form a fiber reinforcement mesh.

4. The thermally conductive double-sided adhesive with high insulation according to claim 3, characterized in that: The primary fiber filament (201) and the secondary fiber filament (202) are either carbon fiber or high molecular weight polyethylene fiber.

5. The thermally conductive double-sided adhesive with high insulation according to claim 1, characterized in that: The outer layer (5) is made of polyethylene material.

6. The thermally conductive double-sided adhesive with high insulation according to claim 1, characterized in that: The inner flame-retardant layer (4) is woven from flame-retardant fibers, which are glass fibers.

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