CN210692144U - Inner and outer layer electromagnetic shielding cable - Google Patents
Inner and outer layer electromagnetic shielding cable Download PDFInfo
- Publication number
- CN210692144U CN210692144U CN201921755323.6U CN201921755323U CN210692144U CN 210692144 U CN210692144 U CN 210692144U CN 201921755323 U CN201921755323 U CN 201921755323U CN 210692144 U CN210692144 U CN 210692144U
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- Prior art keywords
- layer
- cable
- electromagnetic shielding
- copper
- periphery
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- 239000010410 layer Substances 0.000 claims abstract description 98
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 230000008054 signal transmission Effects 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 229910000889 permalloy Inorganic materials 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model relates to an inside and outside layer electromagnetic shield cable of cable usage field, each divides the cable to include the independent single core signal line that sets up, wind the branch cable insulating layer of covering in single core signal line periphery, each single core signal line is gone up and is all sprayed inner electromagnetic shield layer, the inside next door that lies in branch cable of main cable is provided with two sets of signal transmission lines, two sets of signal transmission lines twine and set up together, two sets of signal transmission lines include inboard single signal copper line and wind the signal line shielding insulating layer of covering in single signal copper line periphery; the plurality of groups of branch cables and the two groups of signal transmission lines are wound together and have circular sections; an external electromagnetic shielding layer is arranged outside the main cable, and a metal armor copper mesh layer is wrapped on the periphery of the external electromagnetic shielding layer; an outer protective layer is wrapped on the periphery of the metal armor copper mesh layer; the comprehensive cable realizes the internal and external shielding of the electromagnetic signals inside and outside the cable through the multiple shielding layers, improves the working stability of the cable and improves the use reliability.
Description
Technical Field
The utility model relates to a cable, in particular to ectonexine electromagnetic shield cable.
Background
The cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the cable in a broad sense is also called as a cable for short, and the cable in a narrow sense is an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation. Wire products for transmitting electric (magnetic) energy, information and realizing electromagnetic energy conversion; the radiation of the cable and the leaked electromagnetic waves not only seriously interfere the normal work of other electronic equipment, but also cause the functional disorder and the transmission error of the equipment. Reducing electromagnetic interference (EMI) of the cable has therefore been a concern; moreover, shielding has two implications: 1. electromagnetic radiation caused by internal signal current is shielded, and information leakage is avoided; 2 shielding the influence of an external electromagnetic field on signal transmission, particularly power frequency interference of a power cable; the shielding cable has important application in the occasions of aerospace, high-speed rail locomotives, 5G mobile communication, industrial control centers, military confidential communication, radar stations and the like; the cable shielding the bad point can cause information transmission failure or information transmission delay, and a great safety problem can be generated in the daily application process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that exists among the prior art, provide an ectonexine electromagnetic shield cable, this composite cable passes through the multilayer shielding layer and realizes the inside and outside shielding of the inside electromagnetic signal of this cable and outside electromagnetic signal, improves the stability of cable work, improves the reliability of using.
In order to solve the above problems, an inner and outer layer electromagnetic shielding cable is characterized in that: the cable comprises a main cable and a plurality of component cables arranged in the main cable, wherein the component cables are wound together, each component cable comprises an independently arranged single-core signal wire, a component cable insulating layer wound on the periphery of the single-core signal wire, an inner electromagnetic shielding layer is sprayed on each single-core signal wire, two groups of signal transmission lines are arranged beside the component cables in the main cable, the two groups of signal transmission lines are wound together, and each two groups of signal transmission lines comprise an inner single-signal copper wire and a signal wire shielding insulating layer wound on the periphery of the single-signal copper wire; the plurality of groups of branch cables and the two groups of signal transmission lines are wound together and have circular sections; an external electromagnetic shielding layer is arranged outside the main cable, and a metal armor copper mesh layer is wrapped on the outer periphery of the external electromagnetic shielding layer; and an outer protective layer is wrapped on the periphery of the metal armor copper mesh layer.
The beneficial effects of the utility model reside in that: the comprehensive cable realizes the internal and external shielding of the electromagnetic signals inside and outside the cable through the multiple shielding layers, improves the working stability of the cable and improves the use reliability.
In order to ensure that each single-core signal wire has better shielding performance and ensure the stability of the shielding performance; the single-core signal line is made of a copper wire core, and the cable insulation layer on the periphery of the single-core signal line comprises polyester fiber cloth and a composite film sprayed on the outer layer of the polyester fiber cloth.
In order to ensure that the composite film can fully shield the electromagnetic radiation generated inside; the composite film is provided with two layers, and the composite film comprises an inner ultrathin copper layer and an outer permalloy layer.
In order to ensure that the inner electromagnetic shielding layer and the signal wire shielding insulating layer have better shielding effect; the inner electromagnetic shielding layer and the signal wire shielding insulating layer are made of ultrathin copper layers.
In order to ensure that the external electromagnetic shielding layer can shield external electromagnetic radiation and ensure that the interior works normally; the external electromagnetic shielding layer comprises a main copper net and a nickel plating layer filled on the main copper net.
In order to ensure that the metal armor copper mesh layer has a better protection function and also has better performance of shielding external radiation; the metal armor copper mesh layer comprises an armor which is formed by metal in a staggered and woven mode, and an ultrathin copper layer which is sprayed on the outer face of the armor.
In order to ensure that the outer side protective layer has better protective effect and better protective performance; the outer protective layer sequentially comprises a sheath layer, an insulating layer and a waterproof layer from inside to outside; the sheath layer is made of cross-linked polyethylene.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an enlarged view at a in bitmap 1.
The cable comprises 1 single-core signal wire, 2 sub-cable insulating layers, 3 single-signal copper wires, 4 signal wire shielding insulating layers, 5 outer electromagnetic shielding layers, 6 polyester fiber cloth, 7 inner ultrathin copper layers, 8 outer permalloy layers, 9 metal armor copper mesh layers, 10 outer protective layers, 11 waterproof layers, 12 insulating layers, 13 sheath layers and 14 inner electromagnetic shielding layers.
Detailed Description
In order to solve the above problems, as shown in fig. 1-2, an inner and outer layer electromagnetic shielding cable comprises a main cable, a plurality of component cables arranged inside the main cable, wherein the plurality of component cables are wound together, each component cable comprises an independently arranged single-core signal wire 1 and a component cable insulating layer 2 wound on the periphery of the single-core signal wire 1, an inner electromagnetic shielding layer 14 is sprayed on each single-core signal wire 1, two groups of signal transmission lines are arranged inside the main cable beside the component cables and are wound together, and each two groups of signal transmission lines comprise an inner single-signal copper wire 3 and a signal wire shielding insulating layer 4 wound on the periphery of the single-signal copper wire 3; the plurality of groups of branch cables and the two groups of signal transmission lines are wound together and have circular sections; an external electromagnetic shielding layer 5 is arranged outside the main cable, and a metal armor copper mesh layer 9 is wrapped on the periphery of the external electromagnetic shielding layer; an outer protective layer 10 is wrapped on the periphery of the metal armor copper mesh layer 9; the single-core signal wire 1 is made of a copper wire core, and the cable insulation layer 2 on the periphery of the single-core signal wire 1 comprises polyester fiber cloth 6 and a composite film sprayed on the outer layer of the polyester fiber cloth 6; the composite film is provided with two layers and comprises an inner ultrathin copper layer 7 and an outer permalloy layer 8; the inner electromagnetic shielding layer 14 and the signal wire shielding insulating layer 4 are made of ultrathin copper layers; the external electromagnetic shielding layer 5 comprises a main copper net and a nickel plating layer filled on the main copper net; the metal armor copper mesh layer 9 comprises an armor which is formed by metal in a staggered and woven mode, and an ultrathin copper layer which is sprayed on the outer surface of the armor; the outer protective layer 10 sequentially comprises a sheath layer 13, an insulating layer 12 and a waterproof layer 11 from inside to outside; the sheath layer 13 is made of cross-linked polyethylene.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (7)
1. An inner and outer layer electromagnetic shielding cable, characterized in that: the cable comprises a main cable and a plurality of component cables arranged in the main cable, wherein the component cables are wound together, each component cable comprises an independently arranged single-core signal wire, a component cable insulating layer wound on the periphery of the single-core signal wire, an inner electromagnetic shielding layer is sprayed on each single-core signal wire, two groups of signal transmission lines are arranged beside the component cables in the main cable, the two groups of signal transmission lines are wound together, and each two groups of signal transmission lines comprise an inner single-signal copper wire and a signal wire shielding insulating layer wound on the periphery of the single-signal copper wire; the plurality of groups of branch cables and the two groups of signal transmission lines are wound together and have circular sections; an external electromagnetic shielding layer is arranged outside the main cable, and a metal armor copper mesh layer is wrapped on the outer periphery of the external electromagnetic shielding layer; and an outer protective layer is wrapped on the periphery of the metal armor copper mesh layer.
2. An inner and outer electromagnetic shielding cable according to claim 1, wherein: the single-core signal line is made of a copper wire core, and the cable insulation layer on the periphery of the single-core signal line comprises polyester fiber cloth and a composite film sprayed on the outer layer of the polyester fiber cloth.
3. An inner and outer electromagnetic shielding cable according to claim 2, wherein: the composite film is provided with two layers, and the composite film comprises an inner ultrathin copper layer and an outer permalloy layer.
4. An inner and outer electromagnetic shielding cable according to claim 1, wherein: the inner electromagnetic shielding layer and the signal wire shielding insulating layer are made of ultrathin copper layers.
5. An inner and outer electromagnetic shielding cable according to claim 1, wherein: the external electromagnetic shielding layer comprises a main copper net and a nickel plating layer filled on the main copper net.
6. An inner and outer electromagnetic shielding cable according to claim 1, wherein: the metal armor copper mesh layer comprises an armor which is formed by metal in a staggered and woven mode, and an ultrathin copper layer which is sprayed on the outer face of the armor.
7. An inner and outer electromagnetic shielding cable according to claim 1, wherein: the outer protective layer sequentially comprises a sheath layer, an insulating layer and a waterproof layer from inside to outside; the sheath layer is made of cross-linked polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921755323.6U CN210692144U (en) | 2019-10-18 | 2019-10-18 | Inner and outer layer electromagnetic shielding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921755323.6U CN210692144U (en) | 2019-10-18 | 2019-10-18 | Inner and outer layer electromagnetic shielding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692144U true CN210692144U (en) | 2020-06-05 |
Family
ID=70895325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921755323.6U Expired - Fee Related CN210692144U (en) | 2019-10-18 | 2019-10-18 | Inner and outer layer electromagnetic shielding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210692144U (en) |
-
2019
- 2019-10-18 CN CN201921755323.6U patent/CN210692144U/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 |
Granted publication date: 20200605 |