CN111093353A - Light flexible high-efficiency wire harness electromagnetic shielding sleeve - Google Patents
Light flexible high-efficiency wire harness electromagnetic shielding sleeve Download PDFInfo
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- CN111093353A CN111093353A CN201911256194.0A CN201911256194A CN111093353A CN 111093353 A CN111093353 A CN 111093353A CN 201911256194 A CN201911256194 A CN 201911256194A CN 111093353 A CN111093353 A CN 111093353A
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- layer
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- electromagnetic shielding
- shielding sleeve
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0098—Shielding materials for shielding electrical cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to the technical field of square wave belts, in particular to a light flexible high-efficiency wire harness electromagnetic shielding sleeve. The light flexible high-efficiency wire harness electromagnetic shielding sleeve comprises a wave-proof layer and an adhesive layer for fixing the wave-proof layer on a bonded material. The wave-proof layer is woven for a plurality of silk threads and forms, the silk thread includes cellosilk, transition layer, shielding layer, inoxidizing coating and the wave-absorbing layer of center department, the surface parcel of cellosilk has the transition layer, the surface parcel of transition layer has the shielding layer, the surface parcel of shielding layer has the inoxidizing coating, the surface parcel of inoxidizing coating has the wave-absorbing layer. The low-density fiber yarn is used as the coating base material of the light flexible high-efficiency wire harness electromagnetic shielding sleeve, the problems that the traditional shielding sleeve is heavy in weight, fragile, not wear-resistant and the like are solved, the problems that the traditional shielding sleeve is not high-temperature-resistant and easy to oxidize and the like are solved by adopting the metal coating with excellent environment resistance, and the low RCS requirement of the wire and cable in the stealth technology is met by adopting the high-permeability coating.
Description
Technical Field
The invention belongs to the technical field of electromagnetic shielding, and particularly relates to a light flexible efficient wire harness electromagnetic shielding sleeve.
Background
With the rapid development of modern communication technology, the problems of electromagnetic leakage and interference of electric wires and cables are increasingly prominent, and the light flexible high-efficiency wiring harness electromagnetic shielding sleeve serving as a matching product of the electric wires and cables is laid or wrapped on the outer surface of the electric wires and cables, is the most effective shielding protection for preventing electromagnetic leakage or interference, and is also an important protection means for preventing communication paralysis in modern war.
Different fields have different requirements on the technical performance of the wire harness electromagnetic shielding, such as light weight, good shielding performance, cutting resistance, wear resistance, high strength, high modulus, high temperature resistance, chemical corrosion resistance and the like in the wire harness electromagnetic shielding technology. Therefore, in the technical field, if the electromagnetic shielding technology of the wire harness has wave-absorbing performance, the electromagnetic shielding technology of the wire harness can greatly contribute to the low radar scattering cross section (RCS) of the cable harness.
In recent years, few reports and related literature researches on novel wire harness electromagnetic shielding technology of wires and cables exist, most of the wire harness electromagnetic shielding technology still remains a traditional shielding sleeve, and the metal shielding sleeve is heavy for the application field; in the general field, the screen performance is influenced by high hardness and high-temperature oxidation, and the risk that the cable is broken to influence communication is also caused if the wire hooking disconnection occurs.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a light flexible high-efficiency wire harness electromagnetic shielding sleeve which is light in weight, good in flexibility and good in shielding performance.
The purpose of the invention is realized by the following technical scheme: the utility model provides a flexible high-efficient pencil electromagnetic shield cover of light, its is rolled up by the ripples layer and is formed, the ripples layer of preventing is woven by a plurality of silk threads and is formed, the silk thread includes cellosilk, transition layer, shielding layer, inoxidizing coating and the absorbing layer of center department, the surface parcel of cellosilk has the transition layer, the surface parcel of transition layer has the shielding layer, the surface parcel of shielding layer has the inoxidizing coating, the surface parcel of inoxidizing coating has the absorbing layer.
Preferably, the weaving method of the wave-proof layer is one of weaving methods such as plain weaving and twill weaving.
Preferably, the fiber yarn is one of fiber yarns with high mechanical strength, such as aramid fiber, carbon fiber, polyester fiber, polyimide fiber, basalt fiber and the like.
Preferably, the transition layer is formed by metallizing the surface of the fiber with one of zinc, nickel, chromium, copper or silver plating.
Preferably, the shielding layer is one of plating layers with good conductivity, such as silver, aluminum, copper, or gold.
Preferably, the protective layer is one of the difficult oxidation metal coatings of nickel or gold.
Preferably, the wave-absorbing layer is one of iron-based, cobalt-based or nickel-based amorphous/nanocrystalline films with high magnetic permeability.
Preferably, the adhesive layer is one of pressure-sensitive adhesives such as rubber, silicone, and acrylic.
Preferably, the transition layer, the shielding layer, the protective layer and the wave-absorbing layer are formed by one of spraying, chemical plating, vacuum plating or electroplating.
The invention has the following advantages:
the low-density fiber yarn is used as a coating base material of the light flexible high-efficiency wire harness electromagnetic shielding sleeve, the problems that the traditional shielding sleeve is heavy in weight, fragile and not wear-resistant are solved, the problems that the traditional shielding sleeve is not high in temperature resistance and easy to oxidize are solved by adopting the metal coating with excellent environment resistance, and the low RCS requirement of the wire and cable in the stealth technology is met by adopting the high-permeability coating.
The following properties can be achieved in comparison to conventional shielding sleeves (under the same test conditions), as shown in the following table:
for traditional housing, this scheme can show reduction weight 70 ~ 80%, improve about 10dB of cable harness shielding effectiveness, and can improve the anti-cutting of the flexible high-efficient pencil electromagnetic shield cover of cable light under the extreme condition, wear-resisting, high temperature resistant, oxidation and protecting against shock characteristic, furthermore, high strength, the flexible high-efficient pencil electromagnetic shield cover of flexible light has the attached characteristic of good reinforcing parcel, improve "the leaky wave" that metal shield cover hardness produced the space greatly and arouse, simultaneously, still can reduce the reflection of traditional housing to external electromagnetic wave through outer absorbing layer 405, and then reduce the contribution of cable harness to RCS.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural diagram of the wave-shielding layer according to the present invention;
fig. 3 is a schematic structural view of the yarn of the present invention.
In the figure: the electromagnetic shielding layer comprises 1-a light flexible high-efficiency wiring harness electromagnetic shielding sleeve, 2-a wave-proof layer, 4-silk threads, 401-fiber threads, 402-a transition layer, 403-a shielding layer, 404-a protective layer and 405-a wave-absorbing layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following, and is not limited to the conventional art in detail.
As shown in fig. 1 to 3, the light flexible high-efficiency wire harness electromagnetic shielding sleeve 1 of the invention is mainly formed by winding a wave-proof layer 2.
The wave-proof layer 1 is formed by weaving a plurality of silk threads 4, each silk thread 4 comprises a fiber thread 401, a transition layer 402, a shielding layer 403, a protective layer 404 and a wave-absorbing layer 405, the transition layer 402 is wrapped on the outer surface of the fiber thread 401, the shielding layer 403 is wrapped on the outer surface of the transition layer 402, the protective layer 404 is wrapped on the outer surface of the shielding layer 403, and the wave-absorbing layer 405 is wrapped on the outer surface of the protective layer 404.
As a preferred technical scheme of the invention: the weaving method of the wave-proof layer 1 is one of weaving methods such as plain weaving and twill weaving.
As a preferred technical scheme of the invention: the fiber yarn 401 is one of fiber yarns with high mechanical strength, such as aramid fiber, carbon fiber, polyester fiber, polyimide fiber or basalt fiber, and has the characteristics of light weight, wear resistance and high temperature resistance.
As a preferred technical scheme of the invention: the transition layer 402 is formed by metallizing the surface of the fiber with one of the coatings of zinc, nickel, chromium, copper, silver, or the like to achieve compatibility with the subsequent coating.
As a preferred technical scheme of the invention: the shielding layer 403 is made of one of silver, aluminum, copper, gold, or other plating layers with good conductivity to achieve a high shielding effect.
The protective layer 404 is made of one of the metal coatings difficult to oxidize, such as nickel or gold, and protects the shielding layer (difficult to oxidize and high temperature resistant) or enhances the shielding effect.
As a preferred technical scheme of the invention: the wave-absorbing layer 405 is made of one of iron-based, cobalt-based, or nickel-based amorphous/nanocrystalline films with high magnetic permeability to absorb part of electromagnetic waves and reduce RCS.
As a preferred technical scheme of the invention: the transition layer 402, the shielding layer 403, the protective layer 404 and the wave-absorbing layer 405 are all prepared by one of methods of spraying, chemical plating, vacuum plating or electroplating, and the like, which are common methods, so that the production process is simplified, the production cost is reduced, and the wave-absorbing fabric with shielding and wave-absorbing properties can be obtained by two methods, wherein one method is to completely plate the transition layer 402, the shielding layer 403, the protective layer 404 and the wave-absorbing layer 405 on the fiber yarn 401 and then weave the fiber yarn into the wave-absorbing fabric, and the other method is to weave the pure fiber 401 into a complete set or cloth and then plate the transition layer 402, the shielding layer 403, the protective layer 404 and the wave-absorbing layer 405, and the plating layer can be only one layer, two layers or more layers depending on the specific application environment.
As a preferred technical scheme of the invention: the light flexible high-efficiency wire harness electromagnetic shielding sleeve 1 is formed by rolling the wave-proof layer 2, and can be bonded with a bonded material by applying short-time low pressure, so that the characteristic of good attachment with a wire cable is achieved.
According to different application scenes, the invention combines the technical scheme, and provides a plurality of shielding sleeves which have the same size and are made of different materials, and the shielding sleeves are compared, as shown in the following table.
TABLE 1 weight comparison table for enclosed shielding sleeve
Remarking: the weight unit is g/m.
As can be seen from the above table, with the same size, the metallized aramid fiber braided shield sleeve of an embodiment of the present invention has a significantly lower mass, which is far lower than that of the conventional metal braided shield sleeve, and has better high temperature resistance and shielding performance compared to the carbon fiber + plating layer braided shield sleeve.
In summary, the following steps: the low-density fiber 401 is used as a plating base material of the light flexible high-efficiency wire harness electromagnetic shielding sleeve 1, the problems that a traditional shielding sleeve is heavy in weight, fragile, not wear-resistant and the like are solved, the problems that the traditional shielding sleeve is not high in temperature resistance and easy to oxidize are solved by adopting a metal plating layer with excellent environment resistance, and the low RCS requirement of the wire and cable in the stealth technology is met by adopting a high-permeability plating layer.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a flexible high-efficient pencil electromagnetic shield cover of light which characterized in that: roll up by the anti-wave layer and make and form, anti-wave layer (2) are woven by a plurality of root silk threads (4) and are formed, silk thread (4) include cellosilk (401), transition layer (402), shielding layer (403), inoxidizing coating (404) and inhale ripples layer (405) and constitute, cellosilk (401) are the centre layer, and its surface parcel has transition layer (402), the surface parcel of transition layer (402) has shielding layer (403), the surface parcel of shielding layer (403) has inoxidizing coating (404), the surface parcel of inoxidizing coating (404) has inhale ripples layer (405).
2. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the weaving method of the wave-proof layer (2) is one of plain weaving and twill weaving.
3. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the fiber yarn (401) is one of aramid fiber, carbon fiber, polyester fiber, polyimide fiber or basalt fiber which is high in mechanical strength.
4. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the transition layer (402) is metalized on the surface of the fiber by adopting nickel or silver.
5. The light flexible high-efficiency electromagnetic shielding sleeve for the wiring harness as claimed in claim 1, wherein: the shielding layer (403) is a metal layer with good conductivity.
6. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the protective layer (404) is a metal coating with strong oxidation resistance.
7. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the metal plating layer material with strong oxidation resistance is nickel or gold.
8. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the wave absorbing layer (405) is one of an iron-based, cobalt-based or nickel-based high-permeability amorphous/nanocrystalline film.
9. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the adhesive layer (3) is one of rubber, organic silicon or acrylic pressure-sensitive adhesive.
10. The light flexible efficient electromagnetic shielding sleeve for the wiring harness according to claim 1, wherein: the transition layer (402), the shielding layer (403), the protective layer (404) and the wave-absorbing layer (405) are formed by spraying through one of spraying, chemical plating, vacuum plating or electroplating methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256194.0A CN111093353A (en) | 2019-12-10 | 2019-12-10 | Light flexible high-efficiency wire harness electromagnetic shielding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256194.0A CN111093353A (en) | 2019-12-10 | 2019-12-10 | Light flexible high-efficiency wire harness electromagnetic shielding sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN111093353A true CN111093353A (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911256194.0A Pending CN111093353A (en) | 2019-12-10 | 2019-12-10 | Light flexible high-efficiency wire harness electromagnetic shielding sleeve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509738A (en) * | 2020-11-25 | 2021-03-16 | 东风越野车有限公司 | Automobile wire harness structure capable of resisting wide-band strong electromagnetic pulse radiation |
| CN112712919A (en) * | 2020-12-21 | 2021-04-27 | 深圳金信诺高新技术股份有限公司 | Shielded wire harness and method for producing shielded wire harness |
Citations (6)
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| CN1446280A (en) * | 2000-07-03 | 2003-10-01 | 依克斯潘电子株式会社 | Cold layer-laminated fabric and method for fabricating the same |
| CN101740163A (en) * | 2008-11-10 | 2010-06-16 | 日立电线株式会社 | Cable |
| CN202839037U (en) * | 2012-04-13 | 2013-03-27 | 东莞富强电子有限公司 | Wire rod structure |
| CN203288308U (en) * | 2013-05-10 | 2013-11-13 | 天长市富信电子有限公司 | High-shielding-performance tensile signal wire cable |
| WO2013170021A1 (en) * | 2012-05-11 | 2013-11-14 | General Cable Technologies Corporation | Light weight braid for cable shielding applications |
| CN204720213U (en) * | 2015-06-30 | 2015-10-21 | 济南中正新材料有限公司 | A kind of broadband electromagnetical shield sheath |
-
2019
- 2019-12-10 CN CN201911256194.0A patent/CN111093353A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446280A (en) * | 2000-07-03 | 2003-10-01 | 依克斯潘电子株式会社 | Cold layer-laminated fabric and method for fabricating the same |
| CN101740163A (en) * | 2008-11-10 | 2010-06-16 | 日立电线株式会社 | Cable |
| CN202839037U (en) * | 2012-04-13 | 2013-03-27 | 东莞富强电子有限公司 | Wire rod structure |
| WO2013170021A1 (en) * | 2012-05-11 | 2013-11-14 | General Cable Technologies Corporation | Light weight braid for cable shielding applications |
| CN203288308U (en) * | 2013-05-10 | 2013-11-13 | 天长市富信电子有限公司 | High-shielding-performance tensile signal wire cable |
| CN204720213U (en) * | 2015-06-30 | 2015-10-21 | 济南中正新材料有限公司 | A kind of broadband electromagnetical shield sheath |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509738A (en) * | 2020-11-25 | 2021-03-16 | 东风越野车有限公司 | Automobile wire harness structure capable of resisting wide-band strong electromagnetic pulse radiation |
| CN112712919A (en) * | 2020-12-21 | 2021-04-27 | 深圳金信诺高新技术股份有限公司 | Shielded wire harness and method for producing shielded wire harness |
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Application publication date: 20200501 |