CN113009656A - Flexible optical fiber line - Google Patents
Flexible optical fiber line Download PDFInfo
- Publication number
- CN113009656A CN113009656A CN202110185202.8A CN202110185202A CN113009656A CN 113009656 A CN113009656 A CN 113009656A CN 202110185202 A CN202110185202 A CN 202110185202A CN 113009656 A CN113009656 A CN 113009656A
- Authority
- CN
- China
- Prior art keywords
- wire
- optical fiber
- layer
- fiber optic
- optic line
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 84
- 239000010410 layer Substances 0.000 claims abstract description 39
- 238000004804 winding Methods 0.000 claims abstract description 22
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 11
- 229910052755 nonmetal Inorganic materials 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 239000013305 flexible fiber Substances 0.000 claims 10
- 238000001125 extrusion Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 11
- 230000003287 optical effect Effects 0.000 abstract description 6
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
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
- G02B6/441—Optical cables built up from sub-bundles
- G02B6/4413—Helical structure
-
- 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
-
- 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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4434—Central member to take up tensile loads
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a flexible optical fiber wire, which comprises a wire core, at least one optical fiber layer positioned outside the wire core and a protective layer positioned outside the optical fiber layer, wherein the optical fiber layer is formed by spirally winding a wire outside the wire core, and the wire is an optical fiber or comprises an optical fiber. The invention can improve the bending resistance of the optical fiber, so that the optical fiber is not easy to break when being bent, and can adjust the winding distance to ensure that the optical power loss of the optical fiber is the lowest.
Description
Technical Field
The invention relates to the field of optical fiber communication, in particular to a flexible optical fiber line.
Background
The optical fiber communication has the advantages of large information capacity, good confidentiality, light weight, small volume, long transmission distance and the like, is widely applied and is spread in the industries of communication, transportation, industry, medical treatment, education, aerospace, computers and the like. The application of optical fibers is bringing about profound influences and changes to human lives. The flexible optical fiber line in the prior art generally includes an optical fiber filament and an outer coating located outside the optical fiber filament, and a bending radius (also called a bending radius) of the flexible optical fiber line, that is, a bending radius of the optical fiber filament, is generally recommended to be about 30 mm. Therefore, the flexible optical fiber line of the prior art has poor bending resistance. In order to solve the problem that the optical fiber is not resistant to bending, some optical fibers are woven, but the woven optical fiber has a large optical power loss due to the fact that the weaving distance is too small and the optical fiber is difficult to adjust.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a flexible optical fiber line which is resistant to bending and can reduce optical power loss.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a flexible optical fiber line, includes the sinle silk, is located at least one deck optical fiber layer outside the sinle silk and is located the inoxidizing coating outside the optical fiber layer, and the optical fiber layer is formed by the wire rod in the outer spiral winding of sinle silk, and this wire rod is optic fibre, perhaps, this wire rod contains optic fibre.
Further, the ratio of the winding pitch of the wire to the diameter of the wire core is 4.5-20: 1.
Further, the winding pitch of the wire rod is 10-30 mm, and the diameter of the wire core is 1.5-4 mm.
Furthermore, the outer diameter of the protective layer is 2-10 mm.
Further, the wire core is an elastic wire core.
Further, the wire core comprises an elastic wire, and a metal wire and/or a non-metal non-elastic wire.
Further, the number of the wires is one, or the number of the wires is several, and the several wires are wound in parallel.
Further, the wire of the optical fiber layer is an optical fiber or consists of a plurality of optical fibers, or the wire of the optical fiber layer comprises at least one optical fiber and a metal wire and/or a non-metal wire.
Further, the quantity of optic fibre layer is the one deck, perhaps optic fibre layer is a plurality of, and these a plurality of optic fibre layers are followed the radial from inside to outside stack in proper order of sinle silk, and the wire rod winding direction of this adjacent optic fibre layer is the same or opposite, the inoxidizing coating is located outside outmost optic fibre layer.
Further, the protective layer comprises any one or a combination of several of an extrusion-molded insulating outer cover, a metal mesh, a fiber mesh and a spraying layer.
Compared with the prior art, the invention has the following beneficial effects:
1. the optical fiber layer is formed by spirally winding the optical fiber or the wire containing the optical fiber outside the wire core, so that the bending resistance of the optical fiber can be improved on one hand, the optical fiber is not easy to break when being bent, and the winding pitch of the optical fiber layer can be regulated and controlled on the other hand, and the optical power loss of the optical fiber is ensured to be the lowest.
2. The wire core preferably comprises an elastic wire core, so that the optical fiber wire also has a telescopic function and the tensile strength of the optical fiber wire is greatly improved. Particularly, when the wire core is an elastic wire core, the wire core can further comprise a metal wire and a non-metal wire in addition to the elastic wire, so that the bending resistance of the invention is improved.
The invention is further explained in detail with the accompanying drawings and the embodiments; a flexible optical fiber line of the present invention is not limited to the embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention according to an embodiment;
FIG. 2 is a schematic structural diagram of the present invention according to a second embodiment.
Detailed Description
Example one
Referring to fig. 1, the flexible optical fiber line of the present invention includes a core 1, an optical fiber layer located outside the core 1, and a protective layer 3 located outside the optical fiber layer, wherein the optical fiber layer is formed by winding a wire 2 around the core 1, and the wire 2 is an optical fiber, or the wire 2 includes an optical fiber. When the wire 2 is an optical fiber, the number of the optical fibers may be one or several.
In the embodiment, the ratio of the winding pitch of the wire 2 to the diameter of the wire core 1 is 4.5-20: 1. Specifically, the winding pitch of the wire 2 is 10-30 mm, and the diameter of the wire core 1 is 1.5-4 mm. The outer diameter of the protective layer 3 is 2-10 mm. For example, when the diameter of the wire core 1 is 4mm, the winding pitch of the wire 2 is about 18 mm; when the diameter of the wire core 1 is 2mm, the winding pitch of the wire 2 is about 20 mm; when the diameter of the wire core 1 is 1.5mm, the winding pitch of the wire 2 is about 30 mm.
In this embodiment, the wire core 1 may be any one of an elastic wire core, an inelastic wire core, a metal wire core, a non-metal inelastic wire core, and the like, or a combination of several kinds of the same. Particularly, when the wire core 1 is an elastic wire core, the flexible optical fiber wire also has a stretching function, the tensile strength of the flexible optical fiber wire is greatly improved, and the flexible optical fiber wire can be used as a common flexible optical fiber wire and can also be applied to special occasions with stretching requirements on the flexible optical fiber wire. When the wire core 1 is an elastic wire core, the wire core 1 may further include a metal wire and a non-metal non-elastic wire (the non-metal non-elastic wire includes one or more of nylon yarn, cotton yarn, bulletproof yarn, fiber yarn, etc.), so as to improve the bending resistance of the present invention.
In this embodiment, the wire 2 is a single wire, and the wire 2 is an optical fiber or is composed of a plurality of optical fibers, but not limited thereto, in other embodiments, the wires of the optical fiber layer may include a metal wire and/or a non-metal wire, which is stranded with the optical fiber, in addition to at least one optical fiber. In this embodiment, the number of the optical fiber layers is one, but not limited thereto, in other embodiments, the number of the optical fiber layers is several, the optical fiber layers are sequentially stacked from inside to outside along the radial direction of the core, the winding directions of the wires of the adjacent optical fiber layers are the same or opposite, and the protective layer is located outside the outermost optical fiber layer.
In this embodiment, the protective layer 3 includes one or a combination of several of an extruded insulating outer cover, a metal mesh, a fiber mesh, and a spray coating. The protective layer 3 can fix the optical fiber layer to prevent the wire 2 from loosening after winding, and the protective layer 3 can also provide effective protection for the optical fiber layer to prevent the surface of the optical fiber layer from being damaged to influence the optical transmission performance in the manufacturing and using processes of the optical fiber cable.
The flexible optical fiber wire has greatly improved bending resistance, and the winding pitch of the wire 2 can be regulated (when the wire is wound by equipment, the winding pitch can be set on the equipment according to a specified value), so that the optical power loss of the optical fiber is ensured to be minimum.
Example two
Referring to fig. 2, a flexible optical fiber according to the present invention is different from the first embodiment in that: the wires 2 are wound in parallel, so that the problem that one wire is inconvenient to transmit multipath signals of different types can be solved, and a plurality of groups of different devices can be connected at the same time.
The above embodiments are only used to further illustrate the flexible optical fiber of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A flexible fiber optic line, comprising: including the sinle silk, be located the outer at least one deck optical fiber layer of sinle silk and be located the inoxidizing coating outside the optical fiber layer, the optical fiber layer is formed at the outer spiral winding of sinle silk by the wire rod, and this wire rod is optic fibre, perhaps, this wire rod contains optic fibre.
2. The flexible fiber optic line of claim 1, wherein: the ratio of the winding pitch of the wire to the diameter of the wire core is 4.5-20: 1.
3. The flexible fiber optic line of claim 2, wherein: the winding pitch of the wire rod is 10-30 mm, and the diameter of the wire core is 1.5-4 mm.
4. The flexible fiber optic line of claim 1, wherein: the outer diameter of the protective layer is 2-10 mm.
5. The flexible fiber optic line of claim 1, wherein: the wire core is an elastic wire core.
6. The flexible fiber optic line of claim 5, wherein: the wire core comprises an elastic wire, and a metal wire and/or a non-metal non-elastic wire.
7. The flexible fiber optic line of claim 1, wherein: the number of the wires is one, or the number of the wires is several, and the several wires are wound in parallel.
8. The flexible fiber optic line of claim 1, wherein: the wire of the optical fiber layer is an optical fiber or consists of a plurality of optical fibers, or the wire of the optical fiber layer comprises at least one optical fiber and a metal wire and/or a non-metal wire.
9. The flexible fiber optic line of claim 1, wherein: the quantity of optic fibre layer is the one deck, perhaps, the optic fibre layer is a plurality of, and these a plurality of optic fibre layers are followed the radial stack from inside to outside in proper order of sinle silk, and the wire rod winding direction of this adjacent optic fibre layer is the same or opposite, the inoxidizing coating is located outside outmost optic fibre layer.
10. The flexible fiber optic line of claim 1, wherein: the protective layer comprises any one or a combination of several of an insulation outer cover, a metal mesh, a fiber mesh and a spraying layer which are formed by extrusion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110185202.8A CN113009656A (en) | 2021-02-10 | 2021-02-10 | Flexible optical fiber line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110185202.8A CN113009656A (en) | 2021-02-10 | 2021-02-10 | Flexible optical fiber line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113009656A true CN113009656A (en) | 2021-06-22 |
Family
ID=76402340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110185202.8A Pending CN113009656A (en) | 2021-02-10 | 2021-02-10 | Flexible optical fiber line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113009656A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2035599A (en) * | 1978-11-03 | 1980-06-18 | Ass Elect Ind | Electric power cables incorporating optical transmission elements |
| JPH0573797A (en) * | 1991-09-12 | 1993-03-26 | Furukawa Electric Co Ltd:The | Linear external pressure sensor and cable using this sensor |
| JP2002116357A (en) * | 2000-10-11 | 2002-04-19 | Hitachi Cable Ltd | Flexible optical fiber cable |
| JP2006251339A (en) * | 2005-03-10 | 2006-09-21 | Hitachi Cable Ltd | Fiber optic cable and its manufacturing method |
| JP2009054312A (en) * | 2007-08-23 | 2009-03-12 | Asahi Kasei Fibers Corp | Elastic optic fiber composite cable, and manufacturing method thereof |
| US20110262086A1 (en) * | 2008-12-26 | 2011-10-27 | Shunji Tatsumi | Extensible optical signal transmission cable |
| JP2014192198A (en) * | 2013-03-26 | 2014-10-06 | Viscas Corp | Holding structure of optical amplification fiber, optical composite power cable |
| US20170287597A1 (en) * | 2016-04-04 | 2017-10-05 | Minnesota Wire | Elastomeric and flexible cables |
| US20180178027A1 (en) * | 2016-12-28 | 2018-06-28 | Hua Shang | Blood vessel optical fiber guide wire |
| CN110504063A (en) * | 2019-08-28 | 2019-11-26 | 电子科技大学 | The optoelectronic composite cable of system is listened for distribution type fiber-optic water |
| CN210429327U (en) * | 2019-09-03 | 2020-04-28 | 深圳市金泰科环保线缆有限公司 | USB wire |
| CN211319758U (en) * | 2019-12-31 | 2020-08-21 | 龙岩岳凯科技有限公司 | Bending-resistant optical fiber line |
| CN212013090U (en) * | 2020-03-10 | 2020-11-24 | 龙岩岳凯科技有限公司 | Bending-resistant electric heating wire |
-
2021
- 2021-02-10 CN CN202110185202.8A patent/CN113009656A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2035599A (en) * | 1978-11-03 | 1980-06-18 | Ass Elect Ind | Electric power cables incorporating optical transmission elements |
| JPH0573797A (en) * | 1991-09-12 | 1993-03-26 | Furukawa Electric Co Ltd:The | Linear external pressure sensor and cable using this sensor |
| JP2002116357A (en) * | 2000-10-11 | 2002-04-19 | Hitachi Cable Ltd | Flexible optical fiber cable |
| JP2006251339A (en) * | 2005-03-10 | 2006-09-21 | Hitachi Cable Ltd | Fiber optic cable and its manufacturing method |
| JP2009054312A (en) * | 2007-08-23 | 2009-03-12 | Asahi Kasei Fibers Corp | Elastic optic fiber composite cable, and manufacturing method thereof |
| US20110262086A1 (en) * | 2008-12-26 | 2011-10-27 | Shunji Tatsumi | Extensible optical signal transmission cable |
| CN102265199A (en) * | 2008-12-26 | 2011-11-30 | 旭化成纤维株式会社 | Extensible optical signal transmission cable |
| JP2014192198A (en) * | 2013-03-26 | 2014-10-06 | Viscas Corp | Holding structure of optical amplification fiber, optical composite power cable |
| US20170287597A1 (en) * | 2016-04-04 | 2017-10-05 | Minnesota Wire | Elastomeric and flexible cables |
| US20180178027A1 (en) * | 2016-12-28 | 2018-06-28 | Hua Shang | Blood vessel optical fiber guide wire |
| CN110504063A (en) * | 2019-08-28 | 2019-11-26 | 电子科技大学 | The optoelectronic composite cable of system is listened for distribution type fiber-optic water |
| CN210429327U (en) * | 2019-09-03 | 2020-04-28 | 深圳市金泰科环保线缆有限公司 | USB wire |
| CN211319758U (en) * | 2019-12-31 | 2020-08-21 | 龙岩岳凯科技有限公司 | Bending-resistant optical fiber line |
| CN212013090U (en) * | 2020-03-10 | 2020-11-24 | 龙岩岳凯科技有限公司 | Bending-resistant electric heating wire |
Non-Patent Citations (1)
| Title |
|---|
| 杜彦良, 金秀梅, 孙宝臣, 魏斌: "基于普通光纤的螺旋缠绕式准分布光纤传感器的研究", 工程力学, no. 01, 29 February 2004 (2004-02-29) * |
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