CN105589150A - Hybrid optical fiber with large fiber core number - Google Patents
Hybrid optical fiber with large fiber core number Download PDFInfo
- Publication number
- CN105589150A CN105589150A CN201510971872.7A CN201510971872A CN105589150A CN 105589150 A CN105589150 A CN 105589150A CN 201510971872 A CN201510971872 A CN 201510971872A CN 105589150 A CN105589150 A CN 105589150A
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- China
- Prior art keywords
- cable
- cable core
- core
- hybrid optical
- skeleton
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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.)
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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
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to a hybrid optical fiber with a large fiber core number. The hybrid optical fiber comprises a cable core and an outer sheath wrapping the cable core and is characterized in that the cable core comprises a framework cable core and a layer-stranded cable core stranded on the periphery of the framework cable core. The cable core is wrapped in a dry-type waterproof layer. The dry-type waterproof layer is wrapped in the outer sheath. The hybrid optical fiber uses the hybrid cable core structure combining the framework cable core and the layer-stranded cable core so that the structure of the hybrid optical cable with a large fiber core number is optimized. By replacing a central reinforcing member, the framework cable core enhances the environmental performance and the mechanical property of the optical cable, and greatly increases the number of fiber cores. Compared with the diameter of a same-specification optical cable with over 144 cores and loose layer-stranded structure, the diameter of the hybrid optical fiber can be decreased by over 20 percent so that a core-diameter ratio of the hybrid optical fiber is effectively increased. The hybrid optical fiber is saved in raw materials, decreased in production and transport cost, and decreased in laying space, and effectively saves pipeline resources in view of a trend that an urban underground pipe network becomes a scarce resource increasingly so as to be reduced in laying and construction cost.
Description
Technical field
The present invention relates to a kind of large hybrid optical cable of core number, belong to optic communication transmission technique field.
Background technology
Along with the quickening of 4G, 5G networking speed, and core arterial grid, LAN, the access of optical fiber communication networkSetting up of net, machine room, cloud computing and large data center, has higher requirement to the fine capacity of optical cable, meanwhile, and for reducing to applyIf institute takes up space, reduce making and construction cost, core (fine capacity) footpath (external diameter) to optical cable is than also having proposed higher wantingAsk. Existing high fiber count cable mostly adopts loose jacketed stranded optical cable structure, and the center of thick diameter is moulded reinforcement and only played guarantorThe effect of card cable core structure rounding, the space that does not make full use of central reinforce member increases fiber number.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency existing for above-mentioned prior art provides a kind of large core numberHybrid optical cable, it is good mechanical property not only, and external diameter is little, core number is large.
The present invention for the technical scheme that the problem of the above-mentioned proposition of solution adopts is: include cable core and coated cable core outsideSheath, is characterized in that described cable core comprises skeleton cable core and the layer-twisted type cable core that is stranded in skeleton cable core periphery, cableCore holds dry type waterstop outward, waterstop outer cladding oversheath.
Press such scheme, metal armouring layer or non-metal reinforced layer are set between water blocking layer and oversheath.
Press such scheme, described skeleton cable core comprises skeleton, and the periphery of skeleton is along circumferentially offering skeleton grooves, skeletonIn groove, install optical communication element, the center of skeleton is provided with central reinforce member, and described central reinforce member is stainless steel wire, phosphatizationSteel wire or Fiber glass rod (FRP).
Press such scheme, described layer-twisted type cable core comprises the loose sleeve pipe that is stranded in skeleton cable core periphery, in loose sleeve pipeBe set with optical communication element.
Press such scheme, described skeleton grooves is along circumferentially uniform 3 ~ 8, and described skeleton grooves cross section is rectangular or more than halfCircular (major arc shape).
Press such scheme, described loose sleeve pipe is 6 ~ 15, is stranded in skeleton cable core periphery in SZ strand mode.
Press such scheme, stranded between loose sleeve pipe have a water blocking yarn, in loose sleeve pipe He in skeleton grooves, is filled with water blocking yarn or blocks waterPowder.
Press such scheme, described optical communication element is a kind of or several of optical fiber, fibre ribbon, fibre bundle and tight tube fiberKind.
Press such scheme, the optical communication element core number that in described skeleton grooves, every groove is installed is 6 ~ 36 cores; Described pine coverThe optical communication element laying in pipe is 6 ~ 24 cores.
Press such scheme, above oversheath, connect stranded steel wire by suspender belt, stranded steel wire, suspender belt and oversheath phaseBe connected, form self-bearing type 8 shaped optical cables.
The preparation method of optical cable of the present invention is:
First make respectively the loose sleeve pipe of skeleton cable core and suit optical communication element;
Skeleton cable core and loose sleeve pipe are twisted into cable core by wire parallel module, and cable core surrounds dry type waterstop through winding machineCable core periphery;
Cable core continues outside cable core, to form metal armouring layer to front haulage through longitudinal covering model;
Then enter in the lump oversheath shaping mould, extrude oversheath outward at metal armouring layer with extruding machine, blow through cooling and shapingAfter dry.
Beneficial effect of the present invention is: 1, adopt mixing cable core structure skeleton and that layer-twisted type combines, optimizedThe structure of high fiber count cable, substitutes central reinforce member with skeleton cable core, has not only strengthened the environmental performance of optical cable, has improved machineTool performance, and by skeleton grooves, the fibre core number of optical cable is improved greatly, more than comparing same specification loose sleeve layer strand type structure 144 coresOptic cable diameter can reduce more than 20%, has effectively improved the core diameter ratio of optical cable; 2, the feature that external diameter of the present invention is little, core number is large not onlySave raw material, reduced production and cost of transportation, also reduced fiber cable laying and taken up space, in Urban Buried Pipeline Network simultaneouslyDay by day become under the trend of scarce resource, effectively saved conduit resource, thereby reduced laying and the construction cost of optical cable, canMeet the requirement of large capacity netting twine; 3, adopt dry type structure, be convenient to difference and continue, also reduced the pollution to environment.
Brief description of the drawings
Fig. 1 is the radial section figure of one embodiment of the invention cable core.
Fig. 2 is the radial section figure of one embodiment of the invention.
Fig. 3 is the radial section figure of another embodiment of the present invention.
Detailed description of the invention
Further illustrate embodiments of the invention below in conjunction with accompanying drawing.
First embodiment as shown in Figure 1, 2, includes the oversheath of cable core and coated cable core, and described cable core comprises bonePosture cable core and the layer-twisted type cable core that is stranded in skeleton cable core periphery; Described skeleton cable core comprises skeleton, outside skeletonWeek, 6 skeleton grooves were along circumferentially uniform along circumferentially offering 6 skeleton grooves, and skeleton grooves cross section is rectangular, in each skeleton grooves, pacifiesBe provided with optical communication element, described optical communication element is the fibre ribbon of 66 cores, and the center of skeleton is provided with central reinforce member, instituteThe central reinforce member of stating is phosphatization steel wire; Described layer-twisted type cable core comprises the loose sleeve pipe that is stranded in skeleton cable core periphery, pineIn sleeve pipe, be set with optical communication element, described optical communication element is optical fiber or tight tube fiber, and loose sleeve pipe is 12, with SZ strand sideFormula is stranded in skeleton cable core periphery, is set with 12 cores (root) optical fiber or tight tube fiber in every loose sleeve pipe, between each loose sleeve pipeStranded have a water blocking yarn, in loose sleeve pipe He in skeleton grooves, is filled with water-proofing powder or water blocking yarn, holds dry type water blocking layer outward at cable core, dryFormula water blocking layer is formed by the wrapped cable core of waterstop, forms thus Full-dry optical cable structure. At water blocking layer outer cladding metal armouring layer,Metal armouring layer is formed by the vertical bag of plastic-coated steel band, metal armouring layer outer cladding outer protective polyethylene cover. The light of the present embodiment optical cable is logicalThe total core number in letter unit is 360 cores.
As shown in Figure 3, the main difference part of it and a upper embodiment is to protect outside second embodiment of the inventionThe top of cover connects stranded steel wire by suspender belt, and stranded steel wire is coated with restrictive coating, this restrictive coating and suspender belt and oversheath phaseBe connected, form self-bearing type 8 shaped optical cables. Other structure is identical with a upper embodiment.
The manufacturing process of first embodiment of the invention is: first make respectively skeleton cable core and suit optical communication elementPine sleeve pipe; Then skeleton cable core and loose sleeve pipe are twisted into cable core by wire parallel module, cable core blocks water dry type through winding machineBand surrounds cable core periphery; Cable core continues outside cable core, to form metal armouring layer to front haulage through longitudinal covering model; Last is gone forward side by sideEnter oversheath shaping mould, extrude oversheath outward at metal armouring layer with extruding machine, after cooling and shaping dries up.
Claims (10)
1. the hybrid optical cable of large core number, includes the oversheath of cable core and coated cable core, it is characterized in that described cable coreComprise skeleton cable core and the layer-twisted type cable core that is stranded in skeleton cable core periphery, the outer wrapped dry type water blocking layer of cable core, water blocking layerOuter cladding oversheath.
2. by the hybrid optical cable of large core number claimed in claim 1, it is characterized in that, between water blocking layer and oversheath, gold is setBelong to armor or non-metal reinforced layer.
3. by the hybrid optical cable of large core number claimed in claim 2, it is characterized in that described skeleton cable core comprises skeleton, boneThe periphery of frame, along circumferentially offering skeleton grooves, is installed optical communication element in skeleton grooves, the center of skeleton is provided with central reinforce member,Described central reinforce member is stainless steel wire, phosphatization steel wire or Fiber glass rod.
4. by the hybrid optical cable of large core number claimed in claim 2, it is characterized in that described layer-twisted type cable core comprises to be stranded inThe loose sleeve pipe of skeleton cable core periphery, is set with optical communication element in loose sleeve pipe.
5. by the hybrid optical cable of large core number claimed in claim 3, it is characterized in that described skeleton grooves is along circumferential uniform 3 ~ 8Individual, the rectangular or large semi-circular of described skeleton grooves cross section.
6. by the hybrid optical cable of large core number claimed in claim 4, it is characterized in that described loose sleeve pipe is 6 ~ 15, twist with SZMode is stranded in skeleton cable core periphery.
7. by the hybrid optical cable of large core number claimed in claim 6, it is characterized in that strandedly between loose sleeve pipe having water blocking yarn, a loose sleeve pipeIn be filled with water blocking yarn or water-proofing powder.
8. by the hybrid optical cable of large core number described in claim 3 or 4, it is characterized in that described optical communication element be optical fiber,One or more of fibre ribbon, fibre bundle and tight tube fiber.
9. by the hybrid optical cable of large core number claimed in claim 8, it is characterized in that the light that the described every groove of skeleton grooves is installed leads toLetter unit core number is 6 ~ 36 cores; The optical communication element laying in described loose sleeve pipe is 6 ~ 24 cores.
10. by the hybrid optical cable of large core number described in claim 1 or 2, it is characterized in that passing through suspender belt above oversheathConnect stranded steel wire, stranded steel wire, suspender belt and oversheath are connected as a body, and form self-bearing type 8 shaped optical cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971872.7A CN105589150A (en) | 2015-12-22 | 2015-12-22 | Hybrid optical fiber with large fiber core number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971872.7A CN105589150A (en) | 2015-12-22 | 2015-12-22 | Hybrid optical fiber with large fiber core number |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105589150A true CN105589150A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510971872.7A Pending CN105589150A (en) | 2015-12-22 | 2015-12-22 | Hybrid optical fiber with large fiber core number |
Country Status (1)
| Country | Link |
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| CN (1) | CN105589150A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479158A (en) * | 2017-08-30 | 2017-12-15 | 长飞光纤光缆股份有限公司 | A kind of ant proof large core number optical fibre band optical cable |
| CN114300192A (en) * | 2021-11-25 | 2022-04-08 | 通鼎互联信息股份有限公司 | Low crosstalk framework type photoelectric hybrid cable |
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|---|---|---|---|---|
| CN2237856Y (en) * | 1995-04-26 | 1996-10-16 | 北京张镇光纤电缆厂 | Metal reinforced part loose sleeving frame type full-filled optical cable |
| CN2409530Y (en) * | 1999-12-21 | 2000-12-06 | 周建宏 | Lotus root shaped optical cable |
| CN2695990Y (en) * | 2004-04-15 | 2005-04-27 | 长飞光纤光缆有限公司 | Framework connected with loosen conduit mixed optical cable |
| CN201138383Y (en) * | 2007-11-30 | 2008-10-22 | 青岛汉缆股份有限公司 | 8 font style dry-type waterproof optic cable |
| CN101359072A (en) * | 2008-09-16 | 2009-02-04 | 沈群华 | Optical fiber band and optical cable using the optical fiber band |
| CN101881867A (en) * | 2010-05-03 | 2010-11-10 | 蒋菊生 | Improved skeleton type optical cable |
| CN201765361U (en) * | 2010-08-18 | 2011-03-16 | 长飞光纤光缆有限公司 | Framework type branch optical fiber cable |
| CN102692687A (en) * | 2012-06-01 | 2012-09-26 | 烽火通信科技股份有限公司 | Skeleton fiber bundle optical cable with semicircular skeleton grooves |
| CN103105658A (en) * | 2013-03-13 | 2013-05-15 | 常熟市谷雷特机械产品设计有限公司 | Simple type optical cable structure |
| CN104078139A (en) * | 2014-07-21 | 2014-10-01 | 蔡洪祥 | Microgroove cable |
| CN204044417U (en) * | 2014-09-17 | 2014-12-24 | 长飞光纤光缆股份有限公司 | A kind of Full dry type layer stranded cables |
-
2015
- 2015-12-22 CN CN201510971872.7A patent/CN105589150A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2237856Y (en) * | 1995-04-26 | 1996-10-16 | 北京张镇光纤电缆厂 | Metal reinforced part loose sleeving frame type full-filled optical cable |
| CN2409530Y (en) * | 1999-12-21 | 2000-12-06 | 周建宏 | Lotus root shaped optical cable |
| CN2695990Y (en) * | 2004-04-15 | 2005-04-27 | 长飞光纤光缆有限公司 | Framework connected with loosen conduit mixed optical cable |
| CN201138383Y (en) * | 2007-11-30 | 2008-10-22 | 青岛汉缆股份有限公司 | 8 font style dry-type waterproof optic cable |
| CN101359072A (en) * | 2008-09-16 | 2009-02-04 | 沈群华 | Optical fiber band and optical cable using the optical fiber band |
| CN101881867A (en) * | 2010-05-03 | 2010-11-10 | 蒋菊生 | Improved skeleton type optical cable |
| CN201765361U (en) * | 2010-08-18 | 2011-03-16 | 长飞光纤光缆有限公司 | Framework type branch optical fiber cable |
| CN102692687A (en) * | 2012-06-01 | 2012-09-26 | 烽火通信科技股份有限公司 | Skeleton fiber bundle optical cable with semicircular skeleton grooves |
| CN103105658A (en) * | 2013-03-13 | 2013-05-15 | 常熟市谷雷特机械产品设计有限公司 | Simple type optical cable structure |
| CN104078139A (en) * | 2014-07-21 | 2014-10-01 | 蔡洪祥 | Microgroove cable |
| CN204044417U (en) * | 2014-09-17 | 2014-12-24 | 长飞光纤光缆股份有限公司 | A kind of Full dry type layer stranded cables |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107479158A (en) * | 2017-08-30 | 2017-12-15 | 长飞光纤光缆股份有限公司 | A kind of ant proof large core number optical fibre band optical cable |
| CN114300192A (en) * | 2021-11-25 | 2022-04-08 | 通鼎互联信息股份有限公司 | Low crosstalk framework type photoelectric hybrid cable |
| CN114300192B (en) * | 2021-11-25 | 2023-11-03 | 通鼎互联信息股份有限公司 | Low-crosstalk framework type photoelectric hybrid cable |
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Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |