CN108549133A - A kind of strand type shielded signal line - Google Patents
A kind of strand type shielded signal line Download PDFInfo
- Publication number
- CN108549133A CN108549133A CN201810274220.1A CN201810274220A CN108549133A CN 108549133 A CN108549133 A CN 108549133A CN 201810274220 A CN201810274220 A CN 201810274220A CN 108549133 A CN108549133 A CN 108549133A
- Authority
- CN
- China
- Prior art keywords
- layer
- electromagnetic wave
- optical fiber
- shielded
- wave proof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4417—High voltage aspects, e.g. in cladding
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention discloses the polyolefin layer that a kind of strand type shielded signal line includes four groups of optical fiber of four groups of optical fiber and package, electromagnetic wave proof layer is formed between the optical fiber and polyolefin layer, the cross sectional shape of the electromagnetic wave proof layer is gear-like, the protruding portion of the electromagnetic wave proof layer connects aluminum foil mesh grid shielded layer, the pool mesh grid shielded layer connects ground wire, and graphite anti oxidation layer is formed outside the polyolefin layer；Advantageous effect：The ability for greatly strengthening its signal shielding by the way that the electromagnetic wave proof layer that interface is gear-like is arranged, simultaneously aluminum foil mesh grid shielded layer is connected in the protruding portion of electromagnetic wave proof layer, it combines more stronger more in the past than the shield effectiveness being arranged, it can effectively enhance its oxidation resistance and flame-resistant insulation ability with setting graphite anti oxidation layer and flame-proof polyethylene insulating layer, its service life can be extended, and use is safer.
Description
Technical field
The present invention relates to field fibers, more particularly to a kind of strand type shielded signal line.
Background technology
It is to wrap up one layer of shielded layer in the external of signal conductor to cover signal wire, plays the role of jamproof, general shielded layer
For braiding copper mesh or copper pool（Aluminium）, shielded layer needs to be grounded when in use, big to be imported external interference signal by the layer
Ground avoids interference signal from entering inner conductor interference while reducing the loss of transmission signal.Shielded signal line is suitable for exchange volume
Constant voltage 450/750V and following power electrical appliance, instrument and meter and telecommunication apparatus etc..
There is inoxidizability and poor fire, while the setting of its signal shielding layer in general shielded signal
In single, strong electromagnetic wave interference, while setting too simpleization of its ground wire can not be shielded.
Invention content
The purpose of the present invention is to provide a kind of strand type shielded signal lines, so as to solve the deficiencies in the prior art, improve strand type
The anti-oxidant and fire retardancy of shielded signal line, while enhancing its anti-electromagnetic interference capability.
Technical scheme of the present invention:
A kind of strand type shielded signal line includes the polyolefin layer of four groups of optical fiber of four groups of optical fiber and package, the optical fiber and polyolefin
Electromagnetic wave proof layer is formed between layer, the cross sectional shape of the electromagnetic wave proof layer is gear-like, and electromagnetic wave proof layer forms
Protruding portion and concave part increase the absorption area of electromagnetic wave, can absorb more electromagnetic waves, reach preferably protection and make
With, the protruding portion of the electromagnetic wave proof layer connects aluminum foil mesh grid shielded layer, and the aluminum foil mesh grid shielded layer connects ground wire,
Graphite anti oxidation layer is formed outside the polyolefin layer；Flame-proof polyethylene insulating layer is formed outside the graphite anti oxidation layer；The electricity
Electromagnetic wave shielding layer is a conducting plastics layer.
The ground wire is located at the concave part of electromagnetic wave proof layer, and such setting makes the whole of strand type shielded signal line of the present invention
Body is more preferable.
In order to reinforce the signal shielding ability of outer fiber, the optical fiber outer wrapping copper wire woven net shielded layer.
Advantageous effect：Strand type shielded signal line of the present invention is increased by the way that the electromagnetic wave proof layer that interface is gear-like is arranged
The strong ability of its signal shielding, while aluminum foil mesh grid shielded layer is connected in the protruding portion of electromagnetic wave proof layer, in conjunction with than
The shield effectiveness being arranged in the past is stronger, at the same by by the density of polyolefin layer from its axial up/down end face to it is intermediate gradually
Successively decrease, the anti-pressure ability enhancing so that its axial up/down end face, the bending ability of axial two sides can be made to increase
By force, its oxidation resistance and flame-resistant insulation ability can effectively be enhanced by graphite anti oxidation layer and flame-proof polyethylene insulating layer being arranged,
Its service life can be extended, and use is safer.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the overall schematic one of the present invention；
Fig. 2 is the overall schematic two of the present invention.
Specific implementation mode
The following content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations, it should be noted that in the absence of conflict, the reality in the application
The feature applied in example and embodiment can be combined with each other.
Embodiment 1：
In conjunction with shown in Fig. 1, a kind of strand type shielded signal line of the present embodiment includes the polyene of four groups of optical fiber of four groups of optical fiber 1 and package
Hydrocarbon layers 2 form electromagnetic wave proof layer 3 between the optical fiber and polyolefin layer, the cross sectional shape of the electromagnetic wave proof layer is tooth
Colyliform, the protruding portion 3a connection aluminum foil mesh grids shielded layer 4 of the electromagnetic wave proof layer, the aluminum foil mesh grid shielded layer connection
Ground wire 5, the polyolefin layer form graphite anti oxidation layer 6 outside；Flame-proof polyethylene insulating layer is formed outside the graphite anti oxidation layer
7；The electromagnetic wave proof layer is a conducting plastics layer.
The ground wire is located at the concave part 3b of electromagnetic wave proof layer, and such setting makes strand type shielded signal line of the present invention
Globality is more preferable.
Embodiment 2：
In conjunction with shown in Fig. 2, a kind of strand type shielded signal line of the present embodiment includes the polyene of four groups of optical fiber of four groups of optical fiber 1 and package
Hydrocarbon layers 2 form electromagnetic wave proof layer 3 between the optical fiber and polyolefin layer, the cross sectional shape of the electromagnetic wave proof layer is tooth
Colyliform, the protruding portion 3a connection aluminum foil mesh grids shielded layer 4 of the electromagnetic wave proof layer, the aluminum foil mesh grid shielded layer connection
Ground wire 5, the polyolefin layer form graphite anti oxidation layer 6 outside；Flame-proof polyethylene insulating layer is formed outside the graphite anti oxidation layer
7；The electromagnetic wave proof layer is a conducting plastics layer.
The ground wire is located at the concave part 3b of electromagnetic wave proof layer, and such setting makes strand type shielded signal line of the present invention
Globality is more preferable.
In order to reinforce the signal shielding ability of outer fiber, the optical fiber outer wrapping copper wire woven net shielded layer 8.
For those of ordinary skill in the art to which the present invention belongs, without departing from the inventive concept of the premise,
A number of simple deductions or replacements can also be made, all shall be regarded as belonging to protection scope of the present invention.
Claims (3)
1. a kind of strand type shielded signal line includes the polyolefin layer of four groups of optical fiber of four groups of optical fiber and package, which is characterized in that described
Electromagnetic wave proof layer is formed between optical fiber and polyolefin layer, the cross sectional shape of the electromagnetic wave proof layer is gear-like, the electricity
The protruding portion of electromagnetic wave shielding layer connects aluminum foil mesh grid shielded layer, and the aluminum foil mesh grid shielded layer connects ground wire, the polyene
Graphite anti oxidation layer is formed outside hydrocarbon layers, and flame-proof polyethylene insulating layer, the electromagnetic wave proof are formed outside the graphite anti oxidation layer
Layer is a conducting plastics layer.
2. a kind of strand type shielded signal line according to claim 1, which is characterized in that the ground wire is located at electromagnetic wave proof layer
Concave part.
3. a kind of strand type shielded signal line according to claim 1, which is characterized in that the optical fiber outer wrapping copper wire woven net
Shielded layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274220.1A CN108549133A (en) | 2018-03-29 | 2018-03-29 | A kind of strand type shielded signal line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274220.1A CN108549133A (en) | 2018-03-29 | 2018-03-29 | A kind of strand type shielded signal line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108549133A true CN108549133A (en) | 2018-09-18 |
Family
ID=63517510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810274220.1A Withdrawn CN108549133A (en) | 2018-03-29 | 2018-03-29 | A kind of strand type shielded signal line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108549133A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006031954A (en) * | 2004-07-12 | 2006-02-02 | Hitachi Cable Ltd | Flexible shield structure and cable |
| CN104616824A (en) * | 2015-02-26 | 2015-05-13 | 苏州威尔特线缆科技有限公司 | Environment-friendly inflaming retarding photoelectric combined shielding digital communication cable |
| CN207834004U (en) * | 2018-03-08 | 2018-09-07 | 广州富羽电缆实业有限公司 | A kind of strand type polyvinyl chloride shielded signal line |
-
2018
- 2018-03-29 CN CN201810274220.1A patent/CN108549133A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006031954A (en) * | 2004-07-12 | 2006-02-02 | Hitachi Cable Ltd | Flexible shield structure and cable |
| CN104616824A (en) * | 2015-02-26 | 2015-05-13 | 苏州威尔特线缆科技有限公司 | Environment-friendly inflaming retarding photoelectric combined shielding digital communication cable |
| CN207834004U (en) * | 2018-03-08 | 2018-09-07 | 广州富羽电缆实业有限公司 | A kind of strand type polyvinyl chloride shielded signal line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180918 |
|
| WW01 | Invention patent application withdrawn after publication |