Composite structure type heat-conducting silica gel sheet
By introducing a composite structure of fiber-reinforced mesh and thermally conductive graphite sheet into the thermally conductive silicone sheet, the problem of insufficient toughness of the thermally conductive silicone sheet is solved, achieving a comprehensive improvement in high toughness, thermal conductivity and flame retardancy, extending service life and improving safety.
Patent Information
- Application Number
- CN202423277432.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing thermal conductive silicone pads have low composite strength and are prone to breakage during use, affecting performance and lifespan.
The composite structure design includes a fiber reinforcement mesh composed of transverse and longitudinal fiber bundles on the upper and lower surfaces of the silicone inner base layer. The inner thermally conductive graphite sheet is adhered to the inner base layer and connected to the outer thermally conductive graphite sheet through thermally conductive graphite pillars. A flame-retardant interlayer is filled in the middle, and the outer layer is wrapped with silicone.
The toughness and tensile strength of the thermally conductive silicone pad have been improved, extending its service life, enhancing internal heat conduction and flame retardant safety, and improving overall stability in use.
Smart Images
Figure CN223605245U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heat conduction silica gel technical field, concretely is a kind of composite structure formula heat conduction silica gel sheet. BACKGROUND
[0002] Heat conduction silica gel sheet is with silica gel as base material, add metal oxide and various auxiliary materials, it is a kind of heat conduction medium material synthesized by special process, in industry, also called heat conduction silica gel pad, soft heat conduction pad, heat conduction silica gel gasket etc., is specially designed for the design scheme of heat transfer by gap, can fill gap, pass through the heat channel between heating part and heat dissipation part, effectively improve heat transfer efficiency, also play the role of insulation, shock absorption, sealing etc., can meet the design requirement of equipment miniaturization and ultra-thin, it is a kind of excellent heat conduction filling material with high technology and practicality, and the thickness is widely applicable.
[0003] However, the heat conduction silica gel sheet on the market currently often adopts single-layer structure or double-layer structure type, and the composite strength is not high, the toughness and strength are insufficient in actual use, and fracture easily occurs in the use process, which affects the use effect and overall service life, therefore, the utility model provides a kind of composite structure formula heat conduction silica gel sheet. UTILITY MODEL CONTENT
[0004] The utility model is to provide a kind of composite structure formula heat conduction silica gel sheet to solve the problems in the above background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of composite structure formula heat conduction silica gel sheet, including silica gel inner base layer, the silica gel inner base layer upper and lower outer surfaces are all provided with several equidistant linear distribution transverse grooves, each the transverse groove is provided with transverse fiber bundle, the silica gel inner base layer is internally provided with several equidistant linear distribution longitudinal fiber bundle, the longitudinal fiber bundle top end is arranged through transverse fiber bundle, several the transverse fiber bundle and longitudinal fiber bundle are jointly formed into fiber reinforced net, the silica gel inner base layer upper surface is adhered with inner heat conduction graphite sheet by glue, the inner heat conduction graphite sheet upper surface is fixedly installed with several equidistant linear distribution heat conduction graphite column, several the heat conduction graphite column top end is fixedly connected with outer heat conduction graphite sheet.
[0006] Preferably, the length and width dimensions of the inner heat conduction graphite sheet and the outer heat conduction graphite sheet are the same, the inner heat conduction graphite sheet and the outer heat conduction graphite sheet are filled with a flame-retardant interlayer, and the flame-retardant interlayer is internally provided with holes adapted to the heat conduction graphite columns.
[0007] Preferably, the heat conduction graphite columns pass through the holes of the flame-retardant interlayer, and the length of the heat conduction graphite columns is the same as the thickness of the flame-retardant interlayer.
[0008] Preferably, the fire-retardant interlayer is woven by fire-retardant fibers.
[0009] Preferably, the outer part between the inner base layer of silica gel and the outer heat-conducting graphite sheet is wrapped with an outer layer of silica gel by glue.
[0010] Preferably, the transverse fiber bundles and the longitudinal fiber bundles are both woven by glass fiber filaments.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The utility model discloses a silica gel inner base layer is provided with two groups of fiber reinforced nets that are composed of a plurality of transverse fiber bundles and longitudinal fiber bundles respectively on the upper and lower outer surfaces, and the transverse fiber bundles and the longitudinal fiber bundles are both woven by glass fiber filaments. The reinforced net made of glass fiber can be used as a reinforcing structure of the silica gel inner base layer. The reinforced net has high tensile strength, small elongation, high elastic coefficient, good rigidity, large elongation within the elastic limit, high tensile strength, high impact energy absorption, incombustibility, good chemical resistance, small water absorption, and other characteristics. The inner base layer toughness and tensile strength of the utility model are effectively improved, and the silica gel sheet has a long service life and good mesh-like reinforcing composite structure use effect.
[0013] Meanwhile, the inner heat-conducting graphite sheet can conduct and absorb the internal heat and transfer the absorbed heat to the heat-conducting graphite column. The heat-conducting graphite column can transfer the heat to the outer heat-conducting graphite row, so that the internal heat can be effectively transferred and conducted out, the heat-conducting silica gel sheet has good internal heat conduction effect, the heat-conducting effect from inside to outside is effectively improved, and the heat-conducting property is good.
[0014] Finally, the fire-retardant interlayer can make the utility model have certain internal fire-retardant property, improve the internal fire-retardant effect, improve the fire-retardant safety during use, reduce the use hazards, and the outer layer of silica gel wrapped outside the inner layer composite structure of silica gel can integrally wrap and protect the internal composite structure, improve the overall use effect and use stability of the internal composite structure. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is an internal cross-section structure schematic view of the heat-conducting silica gel sheet of the utility model embodiment.
[0016] Figure 2 It is an inner heat-conducting graphite sheet structure schematic view of the utility model embodiment.
[0017] Figure 3The utility model discloses a silica gel outer layer wrapped formula structure schematic diagram for embodiment of the utility model;
[0018] Figure 4 The utility model discloses a silica gel inner base layer outer surface structure schematic diagram for embodiment of the utility model;
[0019] Figure 5 The utility model discloses a A area amplification structure schematic diagram for embodiment of the utility model Figure 4 .
[0020] In the drawing: 1, silica gel inner base layer, 101, transverse groove, 102, transverse fiber bundle, 103, longitudinal fiber bundle, 2, inner heat conduction graphite sheet, 3, heat conduction graphite column, 4, outer heat conduction graphite sheet, 5, fire -retardant interlayer, 6, silica gel outer layer. Specific implementation
[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.
[0022] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like is the orientation or position relation shown based on the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0024] Please refer to Figures 1-5 , the utility model provides an embodiment: a composite structure formula heat conduction silica gel sheet, including silica gel inner base layer 1, specifically referring to the description accompanying drawings of the utility model Figure 4 And Figure 5As shown, the upper and lower outer surfaces of the silica gel inner base layer 1 are provided with a plurality of equidistant linearly distributed transverse grooves 101, and each transverse groove 101 is provided with a transverse fiber bundle 102, and a plurality of equidistant linearly distributed longitudinal fiber bundles 103 are arranged inside the silica gel inner base layer 1, and the top ends of the longitudinal fiber bundles 103 penetrate through the transverse fiber bundles 102, and the transverse fiber bundles 102 and the longitudinal fiber bundles 103 together form a fiber reinforced net;
[0025] The transverse fiber bundle 102 and the longitudinal fiber bundle 103 are both woven by glass fiber filaments.
[0026] According to the above description, the silica gel inner base layer 1 is provided with two groups of fiber reinforced nets composed of a plurality of transverse fiber bundles 102 and longitudinal fiber bundles 103 on the upper and lower outer surfaces, and the transverse fiber bundle 102 and the longitudinal fiber bundle 103 are both woven by glass fiber filaments, which has the characteristics of high tensile strength, small elongation, high elastic coefficient, good rigidity, large elongation within the elastic limit, high tensile strength, large impact energy absorption, inorganic fiber, non-combustibility, good chemical resistance, small water absorption, etc.
[0027] In this embodiment, in order to improve the internal heat conduction effect of the heat-conducting silica gel sheet of the utility model, the silica gel inner base layer 1 is provided with a plurality of equidistant linearly distributed transverse grooves 101 on the upper and lower outer surfaces, and each transverse groove 101 is provided with a transverse fiber bundle 102, and a plurality of equidistant linearly distributed longitudinal fiber bundles 103 are arranged inside the silica gel inner base layer 1, and the top ends of the longitudinal fiber bundles 103 penetrate through the transverse fiber bundles 102, and the transverse fiber bundles 102 and the longitudinal fiber bundles 103 together form a fiber reinforced net. Figure 2 As shown, the upper surface of the silica gel inner base layer 1 is adhered with an inner heat-conducting graphite sheet 2 by glue, the upper surface of the inner heat-conducting graphite sheet 2 is fixedly installed with a plurality of equidistant linearly distributed heat-conducting graphite columns 3, and the top ends of the plurality of heat-conducting graphite columns 3 are fixedly connected with an outer heat-conducting graphite sheet 4.
[0028] The inner heat-conducting graphite sheet 2 can absorb the internal heat and transfer the absorbed heat to the heat-conducting graphite columns 3, so that the heat-conducting graphite columns 3 can transfer the heat to the outer heat-conducting graphite sheet 4, which can effectively transfer the internal heat, has good internal heat conduction effect, effectively improves the internal heat conduction effect of the heat-conducting silica gel sheet of the utility model, has good thermal conductivity, and has good use performance.
[0029] In order to improve the surface area adaptability of the inner heat-conducting graphite sheet 2 and the outer heat-conducting graphite sheet 4 and improve the structure beauty, the length and width dimensions of the inner heat-conducting graphite sheet 2 and the outer heat-conducting graphite sheet 4 are the same.
[0030] In the embodiment, the inner heat-conducting graphite sheet 2 and the outer heat-conducting graphite sheet 4 are filled with the fireproof interlayer 5 which is woven by fireproof fibers, and the fireproof interlayer 5 is internally provided with a plurality of holes which are adapted to the plurality of heat-conducting graphite columns 3;
[0031] Further, the plurality of heat-conducting graphite columns 3 respectively penetrate the plurality of holes of the fireproof interlayer 5, and the length of the heat-conducting graphite column 3 is the same as the thickness of the fireproof interlayer 5.
[0032] The fireproof interlayer 5 can make the utility model have certain internal fireproof property, improve the internal fireproof effect, thereby improving the fireproof safety during use and reducing the use hidden danger.
[0033] In the embodiment, referring to the drawings, the inner heat-conducting graphite sheet 2 is provided with a plurality of heat-conducting graphite columns 3 which are arranged in the inner heat-conducting graphite sheet 2 and are arranged in the form of a plurality of columns. Figure 1 And Figure 3 As shown in the drawings, the outer surface of the inner silicone base layer 1 is wrapped with the outer silicone layer 6 by glue, and the outer silicone layer 6 is wrapped outside the inner composite structure of the silicone, thereby integrally protecting the inner composite structure, improving the overall use effect and use stability of the inner composite structure, and the outer silicone layer 6 is made of the same material as the inner silicone base layer 1 in order to improve the heat conduction effect.
[0034] Working principle: the heat-conducting silicone sheet of the utility model can be used by using conventional methods by those skilled in the art.
[0035] The utility model discloses a heat-conducting silicone sheet which comprises an inner silicone base layer 1, an outer heat-conducting graphite sheet 4 and a plurality of heat-conducting graphite columns 3.
[0036] Meanwhile, the inner heat-conducting graphite sheet 2 can absorb and conduct the heat in the inner heat-conducting graphite sheet 2 to the heat-conducting graphite columns 3, and the heat-conducting graphite columns 3 can further transmit the heat to the outer heat-conducting graphite sheet 4, thereby effectively transmitting the heat in the inner heat-conducting graphite sheet 2 to the outside, improving the heat conduction effect of the heat-conducting silicone sheet from the inside to the outside, and improving the heat conduction effect of the heat-conducting silicone sheet.
[0037] Finally, the fireproof interlayer 5 set can make the utility model have certain internal fire resistance, improve internal fire resistance effect, thereby improving fire resistance safety during use, reducing use hidden danger, and meanwhile, the inner layer composite structure of silica gel is wrapped with silica gel outer layer 6 outside, the silica gel outer layer 6 designed on the wrapping can integrally wrap and protect the internal composite structure, and improve the overall use effect and use stability of the internal composite structure.
[0038] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features thereof. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A composite structure type heat conductive silica gel sheet comprising a silica gel inner base layer (1), characterized in that, The silica gel inner base layer (1) is provided with a plurality of equidistant linearly distributed transverse grooves (101) on the upper and lower outer surfaces, each of which is provided with a transverse fiber bundle (102), and a plurality of equidistant linearly distributed longitudinal fiber bundles (103) are arranged inside the silica gel inner base layer (1), the top end of the longitudinal fiber bundle (103) penetrates the transverse fiber bundle (102), and the transverse fiber bundle (102) and the longitudinal fiber bundle (103) together form a fiber reinforced net, the upper surface of the silica gel inner base layer (1) is adhered with an inner heat-conducting graphite sheet (2) by glue, and a plurality of equidistant linearly distributed heat-conducting graphite columns (3) are fixedly installed on the upper surface of the inner heat-conducting graphite sheet (2), and an outer heat-conducting graphite sheet (4) is fixedly connected between the top ends of the plurality of heat-conducting graphite columns (3).
2. The composite structure heat-conducting silica gel sheet according to claim 1, characterized in that: The length and width of the inner heat-conducting graphite sheet (2) and the outer heat-conducting graphite sheet (4) are the same, the inner heat-conducting graphite sheet (2) and the outer heat-conducting graphite sheet (4) are filled with a flame-retardant interlayer (5), and the flame-retardant interlayer (5) is provided with a plurality of holes adapted to the plurality of heat-conducting graphite columns (3).
3. The composite structure heat-conducting silica gel sheet according to claim 1, characterized in that: The plurality of heat-conducting graphite columns (3) respectively penetrate the plurality of holes of the flame-retardant interlayer (5), and the length of the heat-conducting graphite column (3) is the same as the thickness of the flame-retardant interlayer (5).
4. The composite structure heat-conducting silica gel sheet according to claim 3, characterized in that: The flame-retardant interlayer (5) is woven by flame-retardant fibers.
5. The composite structure heat-conducting silica gel sheet according to claim 1, characterized in that: The silica gel inner base layer (1) and the outer heat-conducting graphite sheet (4) are wrapped with a silica gel outer layer (6) by glue.
6. The composite structure heat-conducting silica gel sheet according to claim 1, characterized in that: The transverse fiber bundle (102) and the longitudinal fiber bundle (103) are both woven by glass fiber filaments.