CN104991326A - Optical cable in central sleeve structure - Google Patents
Optical cable in central sleeve structure Download PDFInfo
- Publication number
- CN104991326A CN104991326A CN201510440426.3A CN201510440426A CN104991326A CN 104991326 A CN104991326 A CN 104991326A CN 201510440426 A CN201510440426 A CN 201510440426A CN 104991326 A CN104991326 A CN 104991326A
- Authority
- CN
- China
- Prior art keywords
- center sleeve
- optical cable
- central sleeve
- sleeve structure
- optical fiber
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000001771 impaired effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G02B6/4403—Optical cables with ribbon 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
- G02B6/4432—Protective covering with fibre reinforcements
-
- 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
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to an optical cable in a central sleeve structure, which comprises an outer sheath and the central sleeve, and is characterized in that the radial cross section of the central sleeve is elliptic or oblate; the central sleeve is internally provided with optical fiber tapes; a metal tape coats the central sleeve; and the outermost layer of the optical cable is coated with the outer sheath. The optical cable in a central sleeve structure has the beneficial effects that the elliptic or oblate central sleeve is adopted for accommodating the optical fiber tapes, optical fibers and optical fiber bundles, and thus the space utilization rate is improved, edge fibers in the optical fiber tape matrix can be better protected, the edge fibers can be prevented from being squeezed and damaged, the anti-squeezing performance of each optical fiber can be improved, and an adhesion phenomenon is avoided; reinforcing parts outside the sleeve are placed along a short axis direction, the protection layer has a more uniform and reasonable structure, the diameter of the optical fiber is reduced, the cost is reduced, and convenience is brought to processing and use; and as the metal tape coats the central sleeve, the anti-squeezing performance of the optical cable is further improved.
Description
Technical field
The present invention relates to a kind of center sleeve structure optical cable, belong to optical communication transmission technique field.
Background technology
Existing central-beam tube type fiber optic cable, include center beam tube and oversheath, optical fiber or fibre ribbon is coated with in the beam tube of center, these center beam tubes are all adopt circular configuration, although have the advantages such as easy-formation, resistance to compression be good, but pipe inner fiber alignment efficiency is not high, particularly at the same time receiving optical fiber and fibre ribbon time, the width stacking because of fibre ribbon and difference in thickness large, cause space availability ratio in pipe low, optical fiber or fibre ribbon be maldistribution in pipe, makes the limit fibre of fibre ribbon be easy to be subject to beam tube inwall and to extrude and stressed, cause optical fiber attenuation increase even impaired.
Summary of the invention
Technical matters to be solved by this invention is the deficiency that exists for above-mentioned prior art and provides a kind of center sleeve structure optical cable, and not only vibrational power flow is reasonable for it, and be beneficial to and install fibre ribbon, and optic cable diameter is little, physical strength is high.
The technical scheme that the problem that the present invention is the above-mentioned proposition of solution adopts is: include oversheath and center sleeve, it is characterized in that described center sleeve radial section is for oval or oblate, fibre ribbon is installed in center sleeve, metal tape is coated with, the coated oversheath of outermost layer of optical cable at center sleeve.
By such scheme, described oversheath periphery is circular, and diameter is 6 ~ 20mm.
By such scheme, in described center sleeve, be also installed on optical fiber and/or fibre bundle.
By such scheme, install reinforcement in the symmetria bilateralis of the center sleeve outer short-axis direction of clad metal band.
By such scheme, the radial section height of described oval center sleeve is 1.0 ~ 3.0mm, and width is 1.5 ~ 5.0mm.
By such scheme, described fibre ribbon is 1 ~ 6, and the core number of every root fibre ribbon is 4 ~ 12 cores,
By such scheme, described fibre bundle is 4 ~ 12 cores, and fibre bundle diameter is 0.5 ~ 1.5mm.
By such scheme, described reinforcement is steel wire, FRP, organdy, aramid yarn.
By such scheme, described metal tape is vertical Baogang band.
By such scheme, described center sleeve is made up of PBT, PP, PC.
Beneficial effect of the present invention is: 1, adopt ellipse or oblate center sleeve receiving optical fiber band or optical fiber, fibre bundle, space availability ratio can not only be improved, and better protection can be provided to the limit fibre of fibre ribbon matrix, avoid limit fibre to be squeezed and impaired, improve the compressive property of each optical fiber simultaneously and avoid adhesion phenomenon; 2, the reinforcement outside sleeve pipe is placed along short-axis direction, makes shielding layer structure more all rationally even, reduces optic cable diameter, reduces costs, and also offers convenience to processing, use; 3, at center sleeve outer cladding metal tape, the tension compressive property of optical cable is further enhanced.
Accompanying drawing explanation
Fig. 1 is the longitudinal section view of one embodiment of the invention.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
Include oversheath 6, oversheath periphery is circular, center sleeve 1 is coated with in oversheath, described center sleeve radial section is oval, be installed on 3 fibre ribbons 2 in center sleeve, the core number of every root fibre ribbon is 12 cores, and 3 fibre ribbons are along the short-axis direction mounted on top of oval center sleeve, with oval vestibule phase configuration, in center sleeve, be also filled with fine cream or water blocking yarn 3; Metal tape 4 is coated with at center sleeve, described metal tape is vertical Baogang band, the tightly coated center sleeve of metal tape, reinforcement 5 is installed in the symmetria bilateralis in the ellipse short shaft direction, center sleeve outer of clad metal band, described reinforcement is 2 steel wires be arranged in parallel, the coated oversheath 6 of outermost layer of optical cable, oversheath periphery is circular, and oversheath diameter is 10mm.
Claims (10)
1. a center sleeve structure optical cable, include oversheath and center sleeve, it is characterized in that described center sleeve radial section is for oval or oblate, is installed on fibre ribbon in center sleeve, metal tape is coated with, the coated oversheath of outermost layer of optical cable at center sleeve.
2., by center sleeve structure optical cable according to claim 1, it is characterized in that described oversheath periphery is for circular, diameter is 6 ~ 20mm.
3., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that also being installed on optical fiber and/or fibre bundle in described center sleeve.
4., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that the symmetria bilateralis of the center sleeve outer short-axis direction at clad metal band installs reinforcement.
5., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that the radial section height of described oval center sleeve is 1.0 ~ 3.0mm, width is 1.5 ~ 5.0mm.
6., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that described fibre ribbon is 1 ~ 6, the core number of every root fibre ribbon is 4 ~ 12 cores.
7., by center sleeve structure optical cable according to claim 3, it is characterized in that described fibre bundle is 4 ~ 12 cores, fibre bundle diameter is 0.5 ~ 1.5mm.
8., by center sleeve structure optical cable according to claim 4, it is characterized in that described reinforcement is steel wire, FRP, organdy, aramid yarn.
9., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that described metal tape is for vertical Baogang band.
10., by the center sleeve structure optical cable described in claim 1 or 2, it is characterized in that described center sleeve is made up of PBT, PP, PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440426.3A CN104991326A (en) | 2015-07-24 | 2015-07-24 | Optical cable in central sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440426.3A CN104991326A (en) | 2015-07-24 | 2015-07-24 | Optical cable in central sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104991326A true CN104991326A (en) | 2015-10-21 |
Family
ID=54303161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440426.3A Pending CN104991326A (en) | 2015-07-24 | 2015-07-24 | Optical cable in central sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104991326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835164A (en) * | 2021-02-22 | 2021-05-25 | 杭州富通通信技术股份有限公司 | A compression type ribbon optical cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56156803A (en) * | 1980-05-09 | 1981-12-03 | Sumitomo Electric Ind Ltd | Infrared light transmission line |
| JPS58150907A (en) * | 1982-03-03 | 1983-09-07 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cable having built-in core tape |
| CN2181011Y (en) * | 1993-11-30 | 1994-10-26 | 成都市汇源光缆厂 | Central pipe type special shape armored cable |
| CN2598004Y (en) * | 2002-12-23 | 2004-01-07 | 上海常华光纤通信设备有限公司 | Centre bundle pipe type optical cable |
| JP5719052B1 (en) * | 2014-03-06 | 2015-05-13 | 株式会社フジクラ | Optical cable |
| CN204790129U (en) * | 2015-07-24 | 2015-11-18 | 长飞光纤光缆股份有限公司 | Center sleeve pipe structure optical cable |
-
2015
- 2015-07-24 CN CN201510440426.3A patent/CN104991326A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56156803A (en) * | 1980-05-09 | 1981-12-03 | Sumitomo Electric Ind Ltd | Infrared light transmission line |
| JPS58150907A (en) * | 1982-03-03 | 1983-09-07 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cable having built-in core tape |
| CN2181011Y (en) * | 1993-11-30 | 1994-10-26 | 成都市汇源光缆厂 | Central pipe type special shape armored cable |
| CN2598004Y (en) * | 2002-12-23 | 2004-01-07 | 上海常华光纤通信设备有限公司 | Centre bundle pipe type optical cable |
| JP5719052B1 (en) * | 2014-03-06 | 2015-05-13 | 株式会社フジクラ | Optical cable |
| CN204790129U (en) * | 2015-07-24 | 2015-11-18 | 长飞光纤光缆股份有限公司 | Center sleeve pipe structure optical cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835164A (en) * | 2021-02-22 | 2021-05-25 | 杭州富通通信技术股份有限公司 | A compression type ribbon optical cable |
| CN112835164B (en) * | 2021-02-22 | 2022-05-31 | 杭州富通通信技术股份有限公司 | A compression type ribbon optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |