CN201307177Y - Layer-stranded optical fiber ribbon cable with polygonal arrangement - Google Patents
Layer-stranded optical fiber ribbon cable with polygonal arrangement Download PDFInfo
- Publication number
- CN201307177Y CN201307177Y CNU200820199270XU CN200820199270U CN201307177Y CN 201307177 Y CN201307177 Y CN 201307177Y CN U200820199270X U CNU200820199270X U CN U200820199270XU CN 200820199270 U CN200820199270 U CN 200820199270U CN 201307177 Y CN201307177 Y CN 201307177Y
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- China
- Prior art keywords
- optical fiber
- fibre ribbon
- layer
- fibre
- coated
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- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 47
- 239000000835 fiber Substances 0.000 claims abstract description 63
- 239000006071 cream Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The utility model discloses a layer-stranded ribbon optical cable with polygonal arrangement, which comprises a central reinforcing part, a plurality of loose sleeves which are circularly arranged around the central reinforcing part, and an optical fiber band group coated in the loose sleeves, wherein the optical fiber quantity of each layer of optical fiber band is gradually reduced from inside to outside, the optical fiber band with the most optical fiber quantity positioned in the inner layer has at least two layers, the optical fiber quantity of the optical fiber band with the least optical fiber positioned in the outer layer has at least two layers, and the section of the optical fiber band group after the optical fiber band is overlapped is polygonal; the utility model discloses make the optic fibre atress of corner position even, apart from the pipe wall increase to reduce signal attenuation, improved performance.
Description
Technical field
The utility model relates to the layer-twisted optical fiber ribbon cable that a kind of polygon is arranged.
Background technology
In the prior art, layer-twisted optical fiber ribbon cable comprises central reinforce member, several loose sleeve pipes around the rounded arrangement of central reinforce member, be coated on the fibre ribbon group in the loose sleeve pipe, several loose sleeve pipes are coated with waterstop, waterstop is coated with composite steel-plastic belt, composite steel-plastic belt is coated with oversheath, be filled with the cable cream that blocks water between waterstop and the loose sleeve pipe, be filled with fine cream between pine sleeve pipe and the fibre ribbon group, the fibre ribbon group is formed by stacking by several fibre ribbons, each fibre ribbon is combined side by side by the optical fiber of equal number, the fibre ribbon group carry out again stranded after, just can be coated in the loose sleeve pipe, so the cross section of fibre ribbon group in the loose sleeve pipe is rectangular, like this, the optical fiber of corner location is because stranded stressed bending, apart from the influence of factor such as tube wall is nearer, signal attenuation is bigger, greatly reduces the usability of optical cable.
Summary of the invention
The utility model purpose is: the layer-twisted optical fiber ribbon cable that provides a kind of polygon to arrange, the optical fiber combination quantity difference of its each fibre ribbon, fibre ribbon group cross section after the combination is polygon, make the optic fibre force of corner location even, increase apart from tube wall, thereby reduced signal attenuation, improved usability.
The technical solution of the utility model is: the layer-twisted optical fiber ribbon cable that a kind of polygon is arranged, comprise central reinforce member, several loose sleeve pipes around the rounded arrangement of central reinforce member, be coated on the fibre ribbon group in the loose sleeve pipe, several loose sleeve pipes are coated with waterstop, the waterstop outside is embedded with tears rope, waterstop is coated with composite steel-plastic belt, composite steel-plastic belt is coated with oversheath, be filled with the cable cream that blocks water between waterstop and the loose sleeve pipe, be filled with fine cream between pine sleeve pipe and the fibre ribbon group, the fibre ribbon group is formed by stacking by several fibre ribbons, each fibre ribbon is combined side by side by several optical fiber, the number of fibers of described every layer of fibre ribbon gradually reduces from inside to outside, be positioned at internal layer, the fibre ribbon that has maximum number of fibers has at least two-layer, be positioned at outer field, the number of fibers that has the fibre ribbon of minimum optical fiber has two at least, and the cross section of the fibre ribbon group after fibre ribbon is superimposed is polygon.
In the technique scheme, the cross section of described fibre ribbon group is octagon.
The utility model advantage is:
1. the optical fiber combination quantity difference of each fibre ribbon of the present utility model, the fibre ribbon group cross section after the combination is polygon, the optic fibre force that makes corner location evenly, increase apart from tube wall, thereby reduced signal attenuation, improved usability.
2. in theory, when the cross section of fibre ribbon group is rounded, the information attenuation minimum, usability is best, but, optical fiber is overlapped into the fibre ribbon group behind the fibre ribbon again because will being combined into, rather than form by single optical fiber combination, so be difficult to form round section, it is best therefore approaching most circular polygonal cross-section.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a structural representation of the present utility model;
Wherein: 1 central reinforce member; 2 loose sleeve pipes; 3 fibre ribbon groups; 31 fibre ribbons; 311 optical fiber; 4 waterstops; 5 composite steel-plastic belts; 6 oversheaths; The 7 fine cream that block water; 8 fine cream; 9 tear rope.
Embodiment
Embodiment: the layer-twisted optical fiber ribbon cable that a kind of polygon is arranged, comprise central reinforce member 1, around several loose sleeve pipes 2 of central reinforce member 1 rounded arrangement, be coated on the fibre ribbon group 3 in the loose sleeve pipe 2, several loose sleeve pipes 2 are coated with waterstop 4, waterstop 4 outsides are embedded with tears rope 9, waterstop 4 is coated with composite steel-plastic belt 5, composite steel-plastic belt 5 is coated with oversheath 6, be filled with the cable cream 7 that blocks water between waterstop 4 and the loose sleeve pipe 2, be filled with fine cream 8 between loose sleeve pipe 2 and the fibre ribbon group 3;
Described fibre ribbon group 3 is formed by stacking by several fibre ribbons 31, each fibre ribbon 31 is combined side by side by several optical fiber 311, optical fiber 311 quantity of every layer of fibre ribbon 31 gradually reduce from inside to outside, being positioned at fibre ribbon 31 internal layer, that have maximum optical fiber 311 quantity has at least two-layer, optical fiber 311 quantity that are positioned at outer field, as to have minimum optical fiber 311 fibre ribbon 31 have two at least, and the cross section of the fibre ribbon group 3 after fibre ribbon 31 is superimposed is polygon.
As shown in Figure 1, fibre ribbon 31 has ten layers, optical fiber 311 quantity of middle two-layer fibre ribbon 31 are maximum, be 12, optical fiber 311 minimum number of the outer field fibre ribbon 31 in both sides, be 4, the cross section that just formed after the combination is octagonal fibre ribbon group 3 like this, and wherein: four edges has five optical fibers 311, two limits to have four optical fiber 311, two limits that two optical fiber 311 are arranged.
The optical fiber 311 number of combinations differences of each fibre ribbon 31 of the present utility model, fibre ribbon group 3 cross sections after the combination are polygon, make the optical fiber 311 of corner location stressed evenly, increase apart from tube wall, thereby reduced signal attenuation, have improved usability.
In theory, when the cross section of fibre ribbon group 3 is rounded, the information attenuation minimum, usability is best, but, optical fiber 311 is overlapped into fibre ribbon group 3 behind the fibre ribbon 31 again because will being combined into, rather than combine by single optical fiber 311, so be difficult to form round section, it is best therefore approaching most circular polygonal cross-section.
Claims (2)
1. the layer-twisted optical fiber ribbon cable arranged of a polygon, comprise central reinforce member (1), several loose sleeve pipes (2) around the rounded arrangement of central reinforce member (1), be coated on the fibre ribbon group (3) in the loose sleeve pipe (2), several loose sleeve pipes (2) are coated with waterstop (4), waterstop (4) outside is embedded with tears rope (9), waterstop (4) is coated with composite steel-plastic belt (5), composite steel-plastic belt (5) is coated with oversheath (6), be filled with the cable cream (7) that blocks water between waterstop (4) and the loose sleeve pipe (2), be filled with fine cream (8) between pine sleeve pipe (2) and the fibre ribbon group (3), fibre ribbon group (3) is formed by stacking by several fibre ribbons (31), each fibre ribbon (31) is combined side by side by several optical fiber (311), it is characterized in that: optical fiber (311) quantity of described every layer of fibre ribbon (31) gradually reduces from inside to outside, be positioned at internal layer, the fibre ribbon (31) that has maximum optical fiber (311) quantity has at least two-layer, be positioned at outer field, optical fiber (311) quantity that has the fibre ribbon (31) of minimum optical fiber (311) has two at least, and the cross section of the fibre ribbon group (3) after fibre ribbon (31) is superimposed is polygon.
2. the layer-twisted optical fiber ribbon cable that polygon according to claim 1 is arranged, it is characterized in that: the cross section of described fibre ribbon group (3) is octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820199270XU CN201307177Y (en) | 2008-11-17 | 2008-11-17 | Layer-stranded optical fiber ribbon cable with polygonal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820199270XU CN201307177Y (en) | 2008-11-17 | 2008-11-17 | Layer-stranded optical fiber ribbon cable with polygonal arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307177Y true CN201307177Y (en) | 2009-09-09 |
Family
ID=41099645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820199270XU Expired - Lifetime CN201307177Y (en) | 2008-11-17 | 2008-11-17 | Layer-stranded optical fiber ribbon cable with polygonal arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307177Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9250410B2 (en) | 2011-12-22 | 2016-02-02 | Corning Cable Systems Llc | Optical fiber cable and interconnect assembly |
| US20210247579A1 (en) * | 2018-11-02 | 2021-08-12 | Corning Research & Development Corporation | Flexible, non-preferential bend jackets for optical fiber cables |
-
2008
- 2008-11-17 CN CNU200820199270XU patent/CN201307177Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9250410B2 (en) | 2011-12-22 | 2016-02-02 | Corning Cable Systems Llc | Optical fiber cable and interconnect assembly |
| US20210247579A1 (en) * | 2018-11-02 | 2021-08-12 | Corning Research & Development Corporation | Flexible, non-preferential bend jackets for optical fiber cables |
| US11874516B2 (en) * | 2018-11-02 | 2024-01-16 | Corning Research & Development Corporation | Flexible, non-preferential bend jackets for optical fiber cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
|
| CX01 | Expiry of patent term |