CN219165040U

CN219165040U - Multilayer composite heat-conducting silica gel sheet

Info

Publication number: CN219165040U
Application number: CN202223560319.9U
Authority: CN
Inventors: 唐继文
Original assignee: Shenzhen Dobon Technology Co ltd
Current assignee: Shenzhen Dobon Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-09
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of silica gel gaskets, and discloses a multilayer composite heat-conducting silica gel sheet, which comprises release paper and a heat-conducting silica gel gasket, wherein the surface of the release paper is adhered with the heat-conducting silica gel gasket which is uniformly distributed, the heat-conducting silica gel gasket consists of an adhesive layer, the heat-conducting silica gel layer and a heat dissipation layer, the composition sequence is from low to high, and the upper surface of the heat dissipation layer is fixedly connected with heat dissipation fins which are uniformly distributed; according to the utility model, the radiating area is increased through the radiating fins, so that the radiating efficiency is increased, the adhesive layer viscosity is effectively prevented from being reduced due to overhigh temperature, and the heat-conducting silica gel gasket is prevented from falling.

Description

Multilayer composite heat-conducting silica gel sheet

Technical Field

The utility model relates to the technical field of silica gel gaskets, in particular to a multilayer composite heat-conducting silica gel sheet.

Background

The heat-conducting silica gel sheet is a heat-conducting medium sheet taking silica gel as a base material, is also called as a heat-conducting silica gel pad, a heat-conducting silica gel sheet, a soft heat-conducting pad, a heat-conducting silica gel pad and the like in the industry, is specially produced by using a design scheme of heat transfer of gaps, can fill the gaps, can finish heat transfer between a heating part and a heat dissipation part, also plays roles of insulation, shock absorption, sealing and the like, can meet the design requirements of miniaturization and ultra-thinning of equipment, has manufacturability and usability, and has wide thickness application range.

The utility model patent number CN210011437U discloses a heat conduction silica gel heat dissipation composite film, which comprises a stripping layer, an upper heat conduction silica gel layer, a carbon fiber film layer, a middle heat conduction silica gel layer, a copper-based graphene film layer, a lower heat conduction silica gel layer and a protective layer which are sequentially attached from top to bottom; the stripping layer is made of degradable materials, is environment-friendly, can be recycled, saves energy consumption, and achieves the effects of protecting the silica gel layer and being convenient to tear and use; the heat transfer efficiency of the carbon fiber film layer in the vertical direction is 30-55W/M.K, the heat transfer efficiency is high, the heat dissipation performance is good, the impact and tearing resistance effect is good, and the heat dissipation requirement of light and small electronic equipment can be met; the silver plating layer is additionally plated on the carbon fiber film layer, so that the heat conduction efficiency in the vertical direction is further improved, the heat dissipation is accelerated, the heat aggregation is prevented, and the service life of the miniature electronic product is prolonged; meanwhile, the copper-based graphene film layer can optimize the heat conduction effect of the composite film, has insulation and shock absorption effects, and is good in comprehensive performance and long in service life.

The existing composite heat-conducting silica gel sheet has the following defects: 1. only carry out heat conduction and heat dissipation through heat conduction silica gel, the radiating effect is relatively poor, and the high temperature can make the adhesive viscidity reduce, leads to the silica gel gasket to drop, inconvenient use.

Disclosure of Invention

The utility model aims to provide a multilayer composite heat-conducting silica gel sheet so as to solve the problems that the heat dissipation effect is poor and the silica gel pad is easy to drop in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a compound heat conduction silica gel piece of multilayer, includes from type paper and heat conduction silica gel gasket, from the surface adhesion of type paper have the heat conduction silica gel gasket of evenly arranging, the heat conduction silica gel gasket comprises adhesive layer, heat conduction silica gel layer and heat dissipation layer and constitutes the order by low to high, and heat dissipation layer upper surface fixedly connected with evenly arranges's heat dissipation fin.

Preferably, the heat dissipation fins are formed by laminating copper sheets and aluminum sheets.

Preferably, the adhesive layer is made of acrylate adhesive material.

Preferably, the heat-conducting silica gel layer is made of heat-conducting silica gel material.

Preferably, the heat dissipation layer is made of a heat-conducting aluminum material.

Preferably, the release paper is made of coated paper material.

The utility model has the technical effects and advantages that:

the radiating fins are formed by superposing and pressing copper sheets and aluminum sheets, so that the tightness degree of copper-aluminum combination is ensured, the copper sheets absorb heat quickly and the aluminum sheets dissipate heat quickly, the radiating fins can absorb heat emitted by the radiating layer quickly, the aluminum sheets dissipate heat more quickly, the heat emitted by the radiating layer can be emitted outwards through the radiating fins, the radiating area of the radiating fins which are uniformly distributed can be effectively increased, the radiating efficiency is increased, and the radiating effect is ensured; the adhesive layer made of the acrylate adhesive material has good bonding performance and heat resistance to various materials, is convenient to use, can effectively prevent the viscosity of the adhesive layer from being reduced due to overhigh temperature, avoids the dropping of the heat-conducting silica gel gasket, has an isolation effect on the adhesive by release paper, is used as an attachment body of the hot silica gel gasket, ensures that the hot silica gel gasket can be easily peeled off from the release paper, ensures smooth surface of the coated paper, ensures moderate adhesion between the release paper and the hot silica gel gasket on one hand, and ensures that the hot silica gel gasket has firm adhesion with an adhesive after being peeled off on the other hand.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a cross-sectional view of a heat sink fin according to the present utility model.

Fig. 3 is a cross-sectional view of the entire present utility model.

In the figure: 1. release paper; 2. a thermally conductive silicone pad; 201. an adhesive layer; 202. a thermally conductive silicone layer; 203. a heat dissipation layer; 3. a heat radiation fin; 301. an aluminum sheet; 302. copper sheet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a multi-layer composite heat-conducting silica gel sheet as shown in fig. 1-3, which comprises release paper 1 and a heat-conducting silica gel gasket 2, wherein the surface of the release paper 1 is adhered with the heat-conducting silica gel gasket 2 which is uniformly distributed, the heat-conducting silica gel gasket 2 consists of an adhesive layer 201, a heat-conducting silica gel layer 202 and a heat dissipation layer 203, the composition sequence is from low to high, the upper surface of the heat dissipation layer 203 is fixedly connected with heat dissipation fins 3 which are uniformly distributed, and the heat dissipation fins 3 are formed by laminating a copper sheet 302 and an aluminum sheet 301; the radiating fins 3 are formed by superposing and laminating the copper sheets 302 and the aluminum sheets 301, so that the tightness degree of copper-aluminum combination is ensured, the copper sheets 302 absorb heat quickly and the aluminum sheets 301 dissipate heat quickly, the radiating fins 3 can absorb heat emitted by the radiating layer 203 quickly, the aluminum sheets 301 dissipate heat quickly, the heat emitted by the radiating layer 203 can be emitted outwards through the radiating fins 3, the radiating fins 3 which are uniformly distributed can effectively increase the radiating area, the radiating efficiency is increased, and the radiating effect is ensured.

In this embodiment, the adhesive layer 201 is made of an acrylate adhesive material, the heat-conducting silica gel layer 202 is made of a heat-conducting silica gel material, and the heat dissipation layer 203 is made of a heat-conducting aluminum material; the source of the acrylic ester collagen material is wide, the preparation is convenient, the production cost is saved, meanwhile, the adhesive has good adhesive property and heat resistance to various materials, the use is convenient, the viscosity of the adhesive layer 201 is effectively prevented from being reduced due to overhigh temperature, the heat conduction silica gel gasket 2 is prevented from falling, the heat conduction silica gel heat transfer efficiency is high, the heat can be rapidly conducted, and the heat dissipation layer 203 made of the heat conduction aluminum material can be used for rapidly dissipating heat.

In the embodiment, the release paper 1 is made of coated paper material; release paper 1 has the isolation effect to the adhesive to it is as the attachment of hot silica gel gasket, in order to guarantee that hot silica gel gasket can peel off from release paper 1 very easily, coated paper surface is smooth, guarantees from the moderate adhesion of release paper 1 and hot silica gel gasket on the one hand, on the other hand guarantees that hot silica gel gasket is peeled off the back, can have firm cohesiveness with the sticky thing again.

The working principle of the utility model is as follows: the utility model relates to a multilayer composite heat-conducting silica gel sheet, heat emitted at a heat dissipation layer 203 can be emitted outwards through heat dissipation fins 3, heat dissipation area can be effectively increased by uniformly distributed heat dissipation fins 3, heat dissipation efficiency is increased, heat dissipation effect is guaranteed, an adhesive layer 201 made of acrylate adhesive material has good adhesion performance and heat resistance to various materials, the use is convenient, the viscosity of the adhesive layer 201 is effectively prevented from being reduced due to overhigh temperature, a heat-conducting silica gel gasket 2 is prevented from falling, release paper 1 has isolation effect on an adhesive, the release paper is used as an attachment body of a hot silica gel gasket, the hot silica gel gasket can be easily peeled off from release paper 1, the surface of coated paper is smooth, on one hand, moderate adhesion between the release paper 1 and the hot silica gel gasket is guaranteed, and on the other hand, firm adhesion between the hot silica gel gasket and an adhesive is guaranteed after the hot silica gel gasket is peeled off.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a compound heat conduction silica gel piece of multilayer, includes from type paper (1) and heat conduction silica gel gasket (2), its characterized in that: the heat-conducting silica gel gasket (2) which is uniformly distributed is adhered on the surface of the release paper (1), the heat-conducting silica gel gasket (2) is composed of an adhesive layer (201), a heat-conducting silica gel layer (202) and a heat dissipation layer (203) and is formed by the steps of from low to high in sequence, and the upper surface of the heat dissipation layer (203) is fixedly connected with heat dissipation fins (3) which are uniformly distributed.

2. The multilayer composite thermally conductive silicone sheet of claim 1, wherein: the radiating fins (3) are formed by laminating copper sheets (302) and aluminum sheets (301).

3. The multilayer composite thermally conductive silicone sheet of claim 1, wherein: the adhesive layer (201) is made of acrylic adhesive material.

4. The multilayer composite thermally conductive silicone sheet of claim 1, wherein: the heat-conducting silica gel layer (202) is made of heat-conducting silica gel materials.

5. The multilayer composite thermally conductive silicone sheet of claim 1, wherein: the heat dissipation layer (203) is made of a heat-conducting aluminum material.

6. The multilayer composite thermally conductive silicone sheet of claim 1, wherein: the release paper (1) is made of coated paper material.