CN210725878U

CN210725878U - Compound conductive silica gel sheet

Info

Publication number: CN210725878U
Application number: CN201920747063.1U
Authority: CN
Inventors: 苗伟
Original assignee: Shenzhen Antjia Precision Components Co ltd
Current assignee: Shenzhen Antjia Precision Components Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-06-09
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a compound conductive silica gel piece, including bottom basic unit, bottom basic unit upper portion is provided with first conductive silica gel layer, first conductive silica gel layer upper portion is provided with second conductive silica gel layer, second conductive silica gel layer upper portion is provided with third conductive silica gel layer, be provided with the electric cloth shielding layer between first conductive silica gel layer and the second conductive silica gel layer, be provided with the tensile enhancement layer between second conductive silica gel layer and the third conductive silica gel layer, bottom basic unit bottom is provided with pressure-sensitive adhesive layer, pressure-sensitive adhesive layer bottom is provided with from the type rete, third conductive silica gel layer upper portion is provided with the bond line, bond line upper portion is provided with the antistatic backing, antistatic backing upper portion is provided with fire-retardant layer, fire-retardant layer upper portion is provided with the upper portion wearing layer. The composite conductive silica gel sheet has the advantages of strong electromagnetic shielding capability, good antistatic capability, high tensile strength, fire resistance, wear resistance, long service life and the like.

Description

Compound conductive silica gel sheet

Technical Field

The utility model relates to a conductive silica gel piece, especially a compound conductive silica gel piece.

Background

With the development and maturation of various electronic technologies, the application of conductive silica gel in electronic products is becoming more and more extensive.

Inside electronic products, since polymer materials are electrical insulators, static charges are accumulated on the surfaces of the polymer materials at the time of handling or use. The accumulation of static charge may damage electronic devices by short-circuiting, and further, the static charge accumulated on the surface of electronic components may attract dust, which may cause serious problems when used in products such as semiconductors.

On the other hand, since electronic products have various electromagnetic radiations, the radiations affect the normal operation of electronic parts, and bring negative effects to the stable operation of the electronic products.

Therefore, people need to adopt conductive silica gel to perform static electricity removal and electromagnetic shielding on the interior of an electronic product. However, the static electricity removing and electromagnetic shielding functions of the conventional conductive silica gel are generally insufficient, and the use experience of the conventional conductive silica gel is not good when the conductive silica gel is applied.

In view of the above, the present invention provides a new technical solution to solve the existing technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a compound conductive silica gel piece has solved the technical defect such as current conductive silica gel electromagnetic shield ability is not enough, antistatic capability is poor, tensile strength is low.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a compound conductive silica gel piece, includes bottom basic unit, bottom basic unit upper portion is provided with first conductive silica gel layer, first conductive silica gel layer upper portion is provided with second conductive silica gel layer, second conductive silica gel layer upper portion is provided with third conductive silica gel layer, be provided with the electric cloth shielding layer between first conductive silica gel layer and the second conductive silica gel layer, be provided with the tensile enhancement layer between second conductive silica gel layer and the third conductive silica gel layer, bottom basic unit bottom is provided with pressure sensitive adhesive layer, pressure sensitive adhesive layer bottom is provided with from the type rete, third conductive silica gel layer upper portion is provided with the bond line, bond line upper portion is provided with the antistatic backing, antistatic backing upper portion is provided with fire-retardant layer, fire-retardant layer upper portion is provided with the upper portion wearing layer.

As a further improvement of the above technical solution, the first conductive silica gel layer is a copper powder particle conductive silica gel layer, the second conductive silica gel layer is a silver powder particle conductive silica gel layer, the third conductive silica gel layer is a nickel-coated graphite powder particle conductive silica gel layer, and the thicknesses of the first conductive silica gel layer, the second conductive silica gel layer and the third conductive silica gel layer are 80 to 100 micrometers.

As a further improvement of the technical scheme, the tensile reinforced layer comprises a tensile base material layer and tensile metal wires embedded into the tensile base material layer, the tensile base material layer is an organic silica gel layer, and the tensile metal wires are copper metal wires.

As a further improvement of the above technical solution, the electric cloth shielding layer includes a polyester fiber cloth layer and a metal shielding layer, and the electric cloth shielding layer is bonded to the first conductive silicone layer and the second conductive silicone layer by an adhesive.

As a further improvement of the technical scheme, the bottom base layer is a polyethylene terephthalate film layer.

As a further improvement of the above technical solution, the adhesive layer is a polyacrylate layer.

As a further improvement of the above technical solution, the anti-static layer is a woven layer woven by silver fibers and carbon fibers.

As a further improvement of the above technical solution, the flame retardant layer is an epoxy resin layer.

As a further improvement of the technical scheme, the upper wear-resistant layer is a wear-resistant rubber layer.

The utility model has the advantages that: the utility model provides a composite conductive silica gel sheet, which is provided with a first conductive silica gel layer, a second conductive silica gel layer, a third conductive silica gel layer and an electric cloth shielding layer, thereby greatly improving the electromagnetic shielding and antistatic capabilities of the conductive silica gel sheet; furthermore, the antistatic capacity is further improved through the antistatic layer, the tensile strength of the conductive silica gel sheet can be greatly improved through the tensile reinforcing layer, the application occasion with high tensile strength can be adapted, the performance stability of the conductive silica gel sheet can be improved, the service life of the conductive silica gel sheet can be prolonged, and the application range is wider.

In a word, the composite conductive silica gel sheet solves the technical defects of insufficient electromagnetic shielding capability, poor antistatic capability, low tensile strength and the like of the existing conductive silica gel.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite of conflict each other, refer to fig. 1.

A composite conductive silica gel sheet comprises a bottom base layer 1, a first conductive silica gel layer 21 is arranged on the upper part of the bottom base layer 1, a second conductive silica gel layer 22 is arranged on the upper part of the first conductive silica gel layer 21, a third conductive silica gel layer 23 is arranged on the upper part of the second conductive silica gel layer 22, an electric cloth shielding layer 31 is arranged between the first conductive silica gel layer 21 and the second conductive silica gel layer 22, a tensile reinforced layer 32 is arranged between the second conductive silicone rubber layer 22 and the third conductive silicone rubber layer 23, the bottom of the bottom base layer 1 is provided with a pressure-sensitive adhesive layer 11, the bottom of the pressure-sensitive adhesive layer 11 is provided with a release film layer 12, the upper part of the third conductive silica gel layer 23 is provided with an adhesive layer 4, the upper part of the adhesive layer 4 is provided with an antistatic layer 5, and the upper part of the antistatic layer 5 is provided with a flame-retardant layer 6, and the upper part of the flame-retardant layer 6 is provided with an upper wear-resistant layer 7.

When in application, the first conductive silica gel layer 21, the second conductive silica gel layer 22, the third conductive silica gel layer 23 and the electric cloth shielding layer 31 can greatly improve the electromagnetic shielding and antistatic capabilities of the conductive silica gel sheet, can be applied to occasions with high requirements, and has stable and reliable performance and wide application range; the tensile strength of the conductive silica gel sheet can be improved through the tensile reinforcement layer; can further improve antistatic backing through antistatic backing 5, can improve fire-retardant fire behavior through fire-retardant layer 6, can promote wear resistance through upper portion wearing layer 7, be favorable to increase of service life.

Preferably, the first conductive silica gel layer 21 is a copper powder particle conductive silica gel layer, the second conductive silica gel layer 22 is a silver powder particle conductive silica gel layer, the third conductive silica gel layer 23 is a nickel-coated graphite powder particle conductive silica gel layer, and the thicknesses of the first conductive silica gel layer 21, the second conductive silica gel layer 22 and the third conductive silica gel layer 23 are 80-100 micrometers.

Preferably, the tensile reinforcement layer 32 includes a tensile substrate layer and a tensile metal wire embedded in the tensile substrate layer, the tensile substrate layer is an organic silica gel layer, and the tensile metal wire is a copper metal wire.

Preferably, the electric cloth shielding layer 31 includes a polyester fiber cloth layer 311 and a metal shielding layer 312, and the electric cloth shielding layer 31 is adhered to the first conductive silicone rubber layer 21 and the second conductive silicone rubber layer 22 by an adhesive.

Preferably, the bottom base layer 1 is a polyethylene terephthalate film layer.

Preferably, the adhesive layer 4 is a polyacrylate layer.

Preferably, the antistatic layer 5 is a woven layer woven by silver fibers and carbon fibers.

Preferably, the flame retardant layer 6 is an epoxy layer.

Preferably, the upper wear layer 7 is a wear resistant rubber layer.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a compound conductive silica gel piece which characterized in that: comprises a bottom base layer (1), wherein a first conductive silica gel layer (21) is arranged on the upper portion of the bottom base layer (1), a second conductive silica gel layer (22) is arranged on the upper portion of the first conductive silica gel layer (21), a third conductive silica gel layer (23) is arranged on the upper portion of the second conductive silica gel layer (22), an electric cloth shielding layer (31) is arranged between the first conductive silica gel layer (21) and the second conductive silica gel layer (22), a tensile reinforced layer (32) is arranged between the second conductive silica gel layer (22) and the third conductive silica gel layer (23), a pressure-sensitive adhesive layer (11) is arranged on the bottom of the bottom base layer (1), a release film layer (12) is arranged on the bottom of the pressure-sensitive adhesive layer (11), an adhesive layer (4) is arranged on the upper portion of the third conductive silica gel layer (23), an antistatic layer (5) is arranged on the upper portion of the adhesive layer (4), and a flame retardant layer (6), an upper wear-resistant layer (7) is arranged on the upper part of the flame-retardant layer (6).

2. The compound conductive silicone sheet according to claim 1, characterized in that: the first conductive silica gel layer (21) is a copper powder particle conductive silica gel layer, the second conductive silica gel layer (22) is a silver powder particle conductive silica gel layer, the third conductive silica gel layer (23) is a nickel-coated graphite powder particle conductive silica gel layer, and the thicknesses of the first conductive silica gel layer (21), the second conductive silica gel layer (22) and the third conductive silica gel layer (23) are 80-100 micrometers.

3. The compound conductive silicone sheet according to claim 1, characterized in that: the tensile reinforced layer (32) comprises a tensile base material layer and tensile metal wires embedded into the tensile base material layer, the tensile base material layer is an organic silica gel layer, and the tensile metal wires are copper metal wires.

4. The compound conductive silicone sheet according to claim 1, characterized in that: the electric cloth shielding layer (31) comprises a polyester fiber cloth layer (311) and a metal shielding layer (312), and the electric cloth shielding layer (31) is bonded with the first conductive silica gel layer (21) and the second conductive silica gel layer (22) through an adhesive.

5. The compound conductive silicone sheet according to claim 1, characterized in that: the bottom base layer (1) is a polyethylene glycol terephthalate film layer.

6. The compound conductive silicone sheet according to claim 1, characterized in that: the bonding layer (4) is a polyacrylate layer.

7. The compound conductive silicone sheet according to claim 1, characterized in that: the anti-static layer (5) is a woven layer woven by silver fibers and carbon fibers.

8. The compound conductive silicone sheet according to claim 1, characterized in that: the flame-retardant layer (6) is an epoxy resin layer.

9. The compound conductive silicone sheet according to claim 1, characterized in that: the upper wear-resistant layer (7) is a wear-resistant rubber layer.