CN211128835U - Electromagnetic shielding type combined foam structure - Google Patents
Electromagnetic shielding type combined foam structure Download PDFInfo
- Publication number
- CN211128835U CN211128835U CN201920739999.XU CN201920739999U CN211128835U CN 211128835 U CN211128835 U CN 211128835U CN 201920739999 U CN201920739999 U CN 201920739999U CN 211128835 U CN211128835 U CN 211128835U
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- electromagnetic shielding
- electrically conductive
- type combined
- foam structure
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Abstract
The utility model discloses an electromagnetic shield formula combination bubble cotton structure, including the cotton substrate layer of bubble, bubble cotton substrate layer upper portion is provided with electrically conductive graphite layer, electrically conductive graphite layer upper portion is provided with the electromagnetic shield composite bed, electromagnetic shield composite bed upper portion is provided with electrically conductive silastic layer, electrically conductive silastic layer upper portion is provided with heat-resisting rubber layer, heat-resisting rubber layer surface is provided with the surperficial wearing layer, bubble cotton substrate layer lower surface is provided with the bottom wearing layer, the electromagnetic shield composite bed includes magnesium phenol aldehyde resin layer and polyimide film layer, it has the packing layer to fill between magnesium phenol aldehyde resin layer and the polyimide film layer, and polyimide film layer upper surface has set gradually first metal coating, second metal coating and third metal coating. The electromagnetic shielding type combined foam structure has the advantages of stable and reliable electromagnetic shielding performance, strong electromagnetic shielding capability, wear resistance, long service life and the like which are not possessed by the existing products.
Description
Technical Field
The utility model relates to a cotton structure of bubble, especially a cotton structure of electromagnetic shield formula combination bubble.
Background
The conductive foam is a component which is widely applied to the interior of electronic products and has a shielding function. The conductive foam can play the roles of conducting electricity, preventing static electricity, reducing electromagnetic radiation and the like after being applied, and has great effects on improving the performance stability and prolonging the service life of electronic products.
The existing foam product applied to electromagnetic shielding generally has the defects of unstable shielding capability and insufficient shielding capability due to the defects in design and structure, and has the condition of easy shielding failure during application, thereby seriously affecting the normal use of electronic products and even shortening the service life of the electronic products.
Therefore, the utility model provides a new technical scheme in order to solve existing technical defect.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an electromagnetic shield formula combination bubble cotton structure has solved technical defect such as the electromagnetic shielding ability that prior art exists is poor, electromagnetic shield inefficacy easily.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an electromagnetic shield formula combination bubble cotton structure, includes the cotton substrate layer of bubble, bubble cotton substrate layer upper portion is provided with electrically conductive graphite layer, electrically conductive graphite layer upper portion is provided with the electromagnetic shielding composite bed, electromagnetic shielding composite bed upper portion is provided with electrically conductive silastic layer, electrically conductive silastic layer upper portion is provided with heat-resisting rubber layer, heat-resisting rubber layer surface is provided with the surperficial wearing layer, bubble cotton substrate layer lower surface is provided with the bottom wearing layer, the electromagnetic shielding composite bed includes magnesium phenol aldehyde resin layer and polyimide film layer, it has the packing layer to fill between magnesium phenol aldehyde resin layer and the polyimide film layer, and polyimide film layer upper surface has set gradually first metal coating, second metal coating and third metal coating.
As an improvement of the above technical solution, the first metal plating layer is a nickel-cobalt alloy plating layer, the second metal plating layer is a copper plating layer, and the third metal plating layer is a tin plating layer.
As a further improvement of the above technical solution, the thickness of the electromagnetic shielding composite layer is 150-180 μm.
As a further improvement of the technical scheme, the filler layer is a filling layer formed by mixing zeolite powder and nickel powder.
As a further improvement of the technical scheme, the foam base material layer is a polyurethane resin material layer which is subjected to flame retardant soaking treatment.
As a further improvement of the technical scheme, the surface wear-resistant layer is a non-woven fabric layer, the bottom wear-resistant layer is a glass fiber woven layer, reinforcing metal wires are embedded in the glass fiber woven layer, and the bottom wear-resistant layer is bonded on the lower surface of the foam base material layer through a silica gel adhesive.
As a further improvement of the technical scheme, the metal wire is a copper wire.
As a further improvement of the technical scheme, a first bonding layer is arranged between the upper surface of the foam base material layer and the conductive graphite layer, a second bonding layer is arranged between the upper surface of the conductive graphite layer and the lower surface of the electromagnetic shielding composite layer, and the first bonding layer and the second bonding layer are silica gel bonding layers and are 20-30 micrometers in thickness.
As a further improvement of the technical scheme, the conductive graphite layer is a natural graphite layer and the thickness of the conductive graphite layer is 30-50 microns.
The utility model has the advantages that: the utility model provides a cotton structure of electromagnetic shield formula combination bubble, this kind of cotton structure of electromagnetic shield formula combination bubble is provided with the electromagnetic shield composite bed, first metallic coating, second metallic coating and third metallic coating in the electromagnetic shield composite bed can provide stable, reliable electromagnetic shielding performance, can have very big promotion electromagnetic shield ability, when using, because the guard action of surperficial wearing layer and bottom wearing layer, the electromagnetic shield composite bed can not damage easily, help increase of service life, the range of application also further enlarges.
In a word, the electromagnetic shielding type combined foam structure solves the technical defects that the electromagnetic shielding capability is poor, the electromagnetic shielding is easy to lose effectiveness and the like in the prior art.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a schematic sectional structure diagram of the middle electromagnetic shielding composite layer 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 technical features of the present invention can be combined interactively without conflicting with each other, as shown in fig. 1 and 2.
The utility model provides an electromagnetic shield formula combination bubble cotton structure, includes bubble cotton substrate layer 1, 1 upper portion of bubble cotton substrate layer is provided with electrically conductive graphite layer 2, 2 upper portions on electrically conductive graphite layer are provided with electromagnetic shielding composite layer 3, 3 upper portions on electromagnetic shielding composite layer are provided with electrically conductive silicone rubber layer 4, 4 upper portions on electrically conductive silicone rubber layer are provided with heat-resisting rubber layer 5, 5 surfaces on heat-resisting rubber layer are provided with surperficial wearing layer 6, 1 lower surfaces on bubble cotton substrate layer are provided with bottom wearing layer 7, electromagnetic shielding composite layer 3 includes phenol aldehyde resin layer 31 and polyimide thin film layer 33, it has packing layer 32 to fill between magnesium phenol aldehyde resin layer 31 and the polyimide thin film layer 33, and polyimide thin film layer 33 upper surface has set gradually first metal coating 34, second metal coating 35 and third metal coating 36.
Preferably, the first metal plating layer 34 is a nickel-cobalt alloy plating layer, the second metal plating layer 35 is a copper plating layer, and the third metal plating layer 36 is a tin plating layer.
Preferably, the thickness of the electromagnetic shielding composite layer 3 is 150-180 μm.
Preferably, the filler layer 32 is a filling layer formed by mixing zeolite powder and nickel powder, and in practice, the zeolite powder and the nickel powder are mixed and then bonded to the phenolic resin layer 31 and the polyimide film layer 33 through a conductive adhesive.
Preferably, the foam base material layer 1 is a polyurethane resin material layer subjected to flame retardant soaking treatment.
Preferably, surface wearing layer 6 is the non-woven fabrics layer, bottom wearing layer 7 is the glass fiber weaving layer, the embedding has the enhancement wire in the glass fiber weaving layer, and bottom wearing layer 7 passes through the silica gel adhesive bonding at the lower surface of bubble cotton substrate layer 1.
Preferably, the metal wire is a copper wire.
Preferably, be provided with first adhesive linkage 8 between 1 upper surface of bubble cotton substrate layer and electrically conductive graphite layer 2, be provided with second adhesive linkage 9 between electrically conductive graphite layer 2 upper surface and the electromagnetic shield composite bed 3 lower surface, first adhesive linkage 8 and second adhesive linkage 9 are the silica gel adhesive linkage and its thickness is 20-30 microns.
Preferably, the conductive graphite layer 2 is a natural graphite layer and has a thickness of 30 to 50 micrometers.
In particular implementation the utility model discloses in the time, first metallic coating 34, second metallic coating 35 and third metallic coating 36 in the electromagnetic shield composite bed 3 can provide powerful, stable, reliable electromagnetic shield performance for this kind of bubble cotton structure, guarantees that the cotton structure of bubble can use the occasion that the electromagnetic shield required height, has the wide advantage of range of application.
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 (9)
1. The utility model provides an electromagnetic shield formula combination bubble cotton structure which characterized in that: including bubble cotton substrate layer (1), bubble cotton substrate layer (1) upper portion is provided with electrically conductive graphite layer (2), electrically conductive graphite layer (2) upper portion is provided with electromagnetic shielding composite bed (3), electromagnetic shielding composite bed (3) upper portion is provided with electrically conductive silicone rubber layer (4), electrically conductive silicone rubber layer (4) upper portion is provided with heat-resisting rubber layer (5), heat-resisting rubber layer (5) surface is provided with surperficial wearing layer (6), bubble cotton substrate layer (1) lower surface is provided with bottom wearing layer (7), electromagnetic shielding composite bed (3) are including magnesium phenolic resin layer (31) and polyimide thin layer (33), it has packing layer (32) to fill between magnesium phenolic resin layer (31) and polyimide thin layer (33), and polyimide thin layer (33) upper surface has set gradually first metal coating (34), A second metal plating layer (35) and a third metal plating layer (36).
2. The electromagnetic shielding type combined foam structure of claim 1, wherein: the first metal plating layer (34) is a nickel-cobalt alloy plating layer, the second metal plating layer (35) is a copper plating layer, and the third metal plating layer (36) is a tin plating layer.
3. The electromagnetic shielding type combined foam structure of claim 1, wherein: the thickness of the electromagnetic shielding composite layer (3) is 150-180 microns.
4. The electromagnetic shielding type combined foam structure of claim 1, wherein: the filler layer (32) is a filling layer formed by mixing zeolite powder and nickel powder.
5. The electromagnetic shielding type combined foam structure of claim 1, wherein: the foam base material layer (1) is a polyurethane resin material layer which is soaked by a flame retardant.
6. The electromagnetic shielding type combined foam structure of claim 1, wherein: the surface wear-resistant layer (6) is a non-woven fabric layer, the bottom wear-resistant layer (7) is a glass fiber woven layer, reinforcing metal wires are embedded into the glass fiber woven layer, and the bottom wear-resistant layer (7) is bonded on the lower surface of the foam base material layer (1) through a silica gel adhesive.
7. The electromagnetic shielding type combined foam structure of claim 6, wherein: the metal wire is a copper wire.
8. The electromagnetic shielding type combined foam structure of claim 1, wherein: be provided with first adhesive linkage (8) between bubble cotton substrate layer (1) upper surface and electrically conductive graphite layer (2), be provided with second adhesive linkage (9) between electrically conductive graphite layer (2) upper surface and electromagnetic shield composite bed (3) lower surface, first adhesive linkage (8) and second adhesive linkage (9) are the silica gel adhesive linkage and its thickness is 20-30 microns.
9. The electromagnetic shielding type combined foam structure of claim 1, wherein: the conductive graphite layer (2) is a natural graphite layer and the thickness of the conductive graphite layer is 30-50 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739999.XU CN211128835U (en) | 2019-05-20 | 2019-05-20 | Electromagnetic shielding type combined foam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920739999.XU CN211128835U (en) | 2019-05-20 | 2019-05-20 | Electromagnetic shielding type combined foam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211128835U true CN211128835U (en) | 2020-07-28 |
Family
ID=71701146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920739999.XU Expired - Fee Related CN211128835U (en) | 2019-05-20 | 2019-05-20 | Electromagnetic shielding type combined foam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211128835U (en) |
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2019
- 2019-05-20 CN CN201920739999.XU patent/CN211128835U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |