CN201479536U - Composite electromagnetic-wave resisting body - Google Patents
Composite electromagnetic-wave resisting body Download PDFInfo
- Publication number
- CN201479536U CN201479536U CN2009201856108U CN200920185610U CN201479536U CN 201479536 U CN201479536 U CN 201479536U CN 2009201856108 U CN2009201856108 U CN 2009201856108U CN 200920185610 U CN200920185610 U CN 200920185610U CN 201479536 U CN201479536 U CN 201479536U
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- fiber cloth
- electric conductor
- electromagnetic wave
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- magnetic
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Abstract
The utility model discloses a composite electromagnetic-wave resisting body, comprising an electric conductor and a magnetizer, and the electric conductor and the magnetizer are spliced by binding agent, and the binding agent forms an insulator between the electric conductor and the magnetizer; the electric conductor comprises a fiber cloth, and a metal electric-conduction layer which is electro-plated on the fiber cloth, the magnetizer comprises a fiber cloth and a meal magnetic-conduction layer which is electro-plated on the fiber cloth; in the practical operation, the electric conductor of the composite electromagnetic-wave resisting body is exposed to the outside, the magnetizer is close to or in contact with electronic devices to be protected; when electromagnetic waves in the external environment pass through the electric conductor, most of the electromagnetic waves are reflected back by a conducting layer in the electric conductor, and only a small part of the electromagnetic waves enter the magnetic-conduction layer in the magnetizer through the insulator and are absorbed by metal in the magnetic-conduction layer, thereby forming a shielding-absorbing dual-effect mechanism on the whole and improving the effect of resisting the electromagnetic waves.
Description
Technical field
The utility model relates to a kind of compound anti-electromagnetic wave body.
Background technology
Along with development of electronic technology, digital product is gradually to lighter, thinner, the more diversified direction of function develops, the lighter and thinner product component that requires is meticulous more good more, function is more diversified must bring the complicated of product internal electron circuit, the complicated electromagnetic environment of electronic product inside of bringing again of electronic circuit is complicated, the complicated Electro Magnetic Compatibility to product of electromagnetic environment is had higher requirement, during EMC Design, for stopping the interference of external electromagnetic ripple, need on product, install multiple shielding material additional, absorbing material and insulating material are to meet the demands.In the prior art, the anti-electromagnetic wave material has conductive fabric, ferrite wave-absorbing material etc., and conductive fabric adds metal conducting layer and forms on fiber cloth, and this conductive fabric has shield effectiveness preferably to electromagnetic wave, but to the absorption of electromagnetic wave poor-performing, and useful life is shorter; Ferrite wave-absorbing material is to utilize to have ferromagnetic metal oxide and absorb electromagnetic wave, change the electromagnetic wave energy that absorbs into heat energy, this ferrite wave-absorbing material is relatively good to the absorption of electromagnetic wave performance, but to the shielding electromagnetic waves poor performance, and the thickness of present ferrite wave-absorbing material is generally thicker, can't satisfy the lightening requirement of digital product such as mobile phone.
Summary of the invention
It is a kind of to shielding electromagnetic waves effect and all compound preferably anti-electromagnetic wave body of assimilation effect that the purpose of this utility model is to provide.
In order to reach above purpose, the technical solution adopted in the utility model is: a kind of compound anti-electromagnetic wave body, this complex comprises electric conductor, magnetic conductor, described electric conductor is mutually bonding by adhesive with described magnetic conductor, described adhesive has formed insulator between described electric conductor and described magnetic conductor, described electric conductor comprises fiber cloth, electroplates the metal conducting layer on described fiber cloth, and described magnetic conductor comprises fiber cloth, electroplates the metal magnetic conducting layer on this fiber cloth.
Described metal conducting layer is a multilayer, and described multiple layer metal conductive layer outwards is followed successively by nickel dam, copper layer, nickel dam from the lining on fiber cloth.
Described metal magnetic conducting layer is a multilayer, and described multiple layer metal magnetic layer outwards is followed successively by nickel dam, cobalt layer from the lining on fiber cloth.
The fiber cloth of described electric conductor and the fiber cloth of described magnetic conductor are cotton.
Described adhesive is a PUR.
Because the utility model has adopted above technical scheme, its advantage is: compound anti-electromagnetic wave body is to electroplate magnetic conductive metal respectively to form with conducting metal is mutually bonding then on fiber cloth, then the thickness of this compound anti-electromagnetic wave body is thinner with respect to ferrite absorbent material, when satisfying electronic product anti-electromagnetic wave needs, also satisfied the lighter and thinner requirement of product.When practice; electric conductor in the compound anti-electromagnetic wave body is exposed to the external world; magnetic conductor and protected electronic device mutually near or contact; when the electromagnetic wave in the external environment passes through electric conductor; most of electromagnetic wave is reflected back by the conductive layer in the electric conductor, has only the small part electromagnetic wave to see through insulator and enters magnetic layer in the magnetic conductor, is absorbed by the metal in the magnetic layer; thereby form shielding-absorption economic benefits and social benefits mechanism on the whole, promoted the effect of anti-electromagnetic wave.Conductive fabric makes the metal conducting layer on the conductive fabric be easy to wear out to the simple function of shielding of electromagnetic wave, especially in high frequency environment, and conductive layer at first plays shielding action to electromagnetic wave in the complex, the electromagnetic wave that sees through then can also be absorbed by magnetic layer, alleviated the ageing process of conductive layer to a certain extent, made that useful life of the present utility model is longer.
Description of drawings
Accompanying drawing 1 is a partial sectional view of the present utility model.
Embodiment
Further set forth concrete structure of the present utility model below in conjunction with accompanying drawing.
A kind of compound anti-electromagnetic wave body, this complex comprises electric conductor 1, magnetic conductor 2, electric conductor 1 is mutually bonding by adhesive with magnetic conductor 2, adhesive has formed insulator 3 between electric conductor 1 and magnetic conductor 2, electric conductor 1 comprises fiber cloth 11, electroplates the metal conducting layer 12 on fiber cloth 11, and magnetic conductor 2 comprises fiber cloth 21, electroplates the metal magnetic conducting layer 22 on this fiber cloth 21.This compound anti-electromagnetic wave body can be used on communication cabinet; smart mobile phone; in the electronic products such as electronic game machine; when practice; electric conductor 1 is exposed to the external world; magnetic conductor 2 and protected electronic device mutually near or contact; when the electromagnetic wave in the external environment passes through electric conductor 1; most of electromagnetic wave is reflected back by the conductive layer in the electric conductor 1 12; have only the small part electromagnetic wave to see through insulator 3 and enter magnetic layer 22 in the magnetic conductor 2; absorbed by the metal in the magnetic layer 22; thereby form shielding-absorption economic benefits and social benefits mechanism on the whole, promoted the effect of anti-electromagnetic wave.
For the consideration that improves shield effectiveness, metal conducting layer 12 can be multilayer, the multiple layer metal conductive layer outwards is followed successively by nickel dam 121, copper layer 122, nickel dam 123 from the lining on fiber cloth 11, multiple layer metal coating is except improving metal layer thickness to improve the conductive effect, multiple layer metal coating can also improve the tightness degree of metallic combination, further improves shield effectiveness.For the consideration that improves assimilation effect, metal magnetic conducting layer 22 can be multilayer, the multiple layer metal magnetic layer outwards is followed successively by nickel dam 221, cobalt layer 222 from the lining on fiber cloth, same, the multiple layer metal magnetic layer is except the thickness that improves magnetic layer, can also make metallic combine closely, further improve assimilation effect.Fiber cloth and the fiber cloth on the magnetic conductor on the electric conductor all can adopt woven cloth, as cotton, and the deposition of metallic when being convenient to electroplate.
The work flow of compound anti-electromagnetic wave body of the present utility model is as follows: the mode that adopts bilayer to electroplate is electroplated layer of metal nickel 221 earlier on fiber cloth 21, and then electroplates layer of metal cobalt 222 and formation magnetic conductor 2; Adopt the mode of three layers of plating on fiber cloth 11, to electroplate layer of metal nickel 121 earlier, electroplate layer of metal copper 122 then, then electroplate layer of metal nickel 123 again and formation electric conductor 1; Then at high temperature electric conductor 1 and magnetic conductor 2 usefulness adhesives are bonded together, adhesive can be selected PUR for use, this kind glue is liquid condition at high temperature during as 100 ℃, then complex is cooled off the back oven dry of impurity elimination stain, promptly form shielding and absorb compound anti-electromagnetic wave body, the PUR body in the middle of complex after the supercooling oven dry forms the careful as thin as a wafer insulator 3 of one deck.
Because compound anti-electromagnetic wave body of the present utility model is to electroplate magnetic conductive metal respectively to form with conducting metal is mutually bonding then on fiber cloth, then the thickness of this compound anti-electromagnetic wave body has only about 0.15mm, when satisfying electronic product anti-electromagnetic wave needs, satisfy the lighter and thinner requirement of product.The means of anti-electromagnetic wave generally have two kinds: a kind of is to absorb electromagnetic wave, another is a reflection electromagnetic wave, compare with the absorption electromagnetic wave function that single shielding reflection function of conductive fabric product and ferrite wave-absorbing material are single, the utility model possesses this two kinds of means simultaneously, thereby shows stronger anti-electromagnetic wave ability.The utility model product is compared as shown in the table with the common ferrite wave-absorbing material and the performance of screening conductive cloth on the market:
As can be seen from the above table, the utility model shielding absorbs compound anti-electromagnetic wave material, for ferrite wave-absorbing material, not only can accomplish thinner thickness, also more cheap on cost than ferrite wave-absorbing material, because adopt the electro-plating method the same just can obtain conduction and magnetic property simultaneously with common conductive fabric.And under high frequency environment, the outer field electric conductor of complex can be gone out most reflection of electromagnetic wave, the consistency of performance that can effectively guarantee product with promote the product useful life period; With respect to general conductive fabric product, though it is slightly higher than conductive fabric on price, but its shielding+absorption economic benefits and social benefits working mechanism has brought lifting still for the performance of product, and the scope of application of the product that extended, under the processing of consistent flow process and quality control system, obtain same anti-electromagnetic wave effect, in fact, this utility model product is cheaper than the cost that uses conductive fabric, and, conductive fabric makes the metal conducting layer on the conductive fabric be easy to wear out to the simple function of shielding of electromagnetic wave, especially in high frequency environment, and conductive layer at first plays shielding action to electromagnetic wave in the complex, and the electromagnetic wave that sees through then can also be absorbed by magnetic layer, alleviated the ageing process of conductive layer to a certain extent, made that useful life of the present utility model is longer.
Claims (5)
1. compound anti-electromagnetic wave body, it is characterized in that: this complex comprises electric conductor, magnetic conductor, described electric conductor is mutually bonding by adhesive with described magnetic conductor, described adhesive has formed insulator between described electric conductor and described magnetic conductor, described electric conductor comprises fiber cloth, electroplates the metal conducting layer on described fiber cloth, and described magnetic conductor comprises fiber cloth, electroplates the metal magnetic conducting layer on this fiber cloth.
2. a kind of compound anti-electromagnetic wave body according to claim 1, it is characterized in that: described metal conducting layer is a multilayer, described multiple layer metal conductive layer outwards is followed successively by nickel dam, copper layer, nickel dam from the lining on fiber cloth.
3. a kind of compound anti-electromagnetic wave body according to claim 1, it is characterized in that: described metal magnetic conducting layer is a multilayer, described multiple layer metal magnetic layer outwards is followed successively by nickel dam, cobalt layer from the lining on fiber cloth.
4. a kind of compound anti-electromagnetic wave body according to claim 1, it is characterized in that: the fiber cloth of described electric conductor and the fiber cloth of described magnetic conductor are cotton.
5. a kind of compound anti-electromagnetic wave body according to claim 1, it is characterized in that: described adhesive is a PUR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201856108U CN201479536U (en) | 2009-06-24 | 2009-06-24 | Composite electromagnetic-wave resisting body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201856108U CN201479536U (en) | 2009-06-24 | 2009-06-24 | Composite electromagnetic-wave resisting body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479536U true CN201479536U (en) | 2010-05-19 |
Family
ID=42415794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201856108U Expired - Fee Related CN201479536U (en) | 2009-06-24 | 2009-06-24 | Composite electromagnetic-wave resisting body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052309A (en) * | 2013-01-23 | 2013-04-17 | 曾芳勤 | Electromagnetic shielding stripe |
-
2009
- 2009-06-24 CN CN2009201856108U patent/CN201479536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052309A (en) * | 2013-01-23 | 2013-04-17 | 曾芳勤 | Electromagnetic shielding stripe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |