CN108061951A - A kind of slotted core fiber ribbon cable - Google Patents
A kind of slotted core fiber ribbon cable Download PDFInfo
- Publication number
- CN108061951A CN108061951A CN201810032198.XA CN201810032198A CN108061951A CN 108061951 A CN108061951 A CN 108061951A CN 201810032198 A CN201810032198 A CN 201810032198A CN 108061951 A CN108061951 A CN 108061951A
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- China
- Prior art keywords
- skeleton
- fiber
- skeleton grooves
- slotted core
- ribbon cable
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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
- G02B6/4407—Optical cables with internal fluted support member
- G02B6/4409—Optical cables with internal fluted support member for ribbons
-
- 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
-
- 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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a kind of slotted core fiber ribbon cable, the waterstop including being coated on skeleton periphery, waterstop outside has extruded cable jacket, and skeleton circumferentially sets skeleton grooves, fiber unit is set in skeleton grooves；Frame center is embedded with reinforcer, and skeleton grooves are axially distributed along reinforcer in SZ types；Fiber unit includes the subelement formed by several fibre ribbons in a manner that spiral is twisted, and fibre ribbon by adhering resin is bonded curing connection by adjacent sequential by several optical fiber and is formed along winding and being wrapped up by binder perpendicular to fiber length successively；Circular cross-section is formed in a manner that spiral is twisted and form fiber unit after binder wrapping is fixed between subelement.The limitation that the fibre ribbon of circular configuration of the present invention changes from bending direction, with preferable bending resistance, and band structure of optic fibre size easily regulates and controls, can well it coordinate with skeleton grooves, so as to meet the requirement of large range of density of optic fibre and cable outer diameter, and realize the excellent water permeability resistance energy of optical cable.
Description
Technical field
The invention belongs to fiber optic cable manufacture technical fields, are related to a kind of slotted core fiber ribbon cable.
Background technology
With the fast development of optical communications industry, the constructing emphases of communication network are shifted to Metropolitan Area Network (MAN) and access net so that
Traditional cable configuration is difficult to meet the demands such as variation and the high quality of network service.It is domestic mainly to be twisted at present using loose jacket layer
Formula and central-beam tube type fiber optic cable, especially high fiber count cable are typically that 4~24 optical fiber are arranged in parallel and cure through UV in casing
Into Boping shape fibre ribbon, but the drawback is that cable configuration size is big, heavy, core number is small, especially in increasingly wiring space resource
In the case of in short supply so that the difficulty of fiber cable laying and follow-up maintenance greatly increases.In addition, Boping shape optical fiber arranged in parallel
Band, bending have orientation, and along the good bandability in ribbon thickness direction, the bendability along ribbon width direction is poor, into
And the bending property of optical cable is largely limited, influence the stability and reliability of communication line signal transmission.
The content of the invention
To solve drawbacks described above in the prior art, it is an object of the invention to provide a kind of skeleton type optical fiber ribbon light
Cable, the fibre ribbon of the optical cable have preferable bending resistance, from the limitation of bending direction variation, it is inclined to avoid optical fiber attenuation
Line signal failure caused by big or unstable.Compared with the Boping shape fibre ribbon of traditional parallel arranged, section is circle
Structure solves the problems, such as that directionality limits conventional optical fiber ribbon by bending, so as to ensure that communication line stable signal transmission can
It leans on.
The present invention is realized by following technical proposals.
A kind of slotted core fiber ribbon cable provided by the invention including skeleton and is coated on the waterstop of skeleton periphery, resistance
Cable jacket is extruded on the outside of water band, the skeleton grooves for being circumferentially with equidistantly distributed of the skeleton, skeleton grooves are interior to be equipped with optical fiber
Unit；The frame center is embedded with reinforcer, and skeleton grooves are axially distributed along reinforcer in SZ types；
The fiber unit is included forms the subelement formed in a manner that spiral is twisted, the light by several fibre ribbons
Fibre ribbons are bonded curing connection by adhering resin by adjacent sequential by several optical fiber and are rolled up along perpendicular to fiber length successively
It wraps up and is formed around and by binder；Circular cross-section is formed in a manner that spiral is twisted and wrapped up through binder between the subelement
Fiber unit is formed after fixation.
Preferably, the waterstop is made of the water-proofing powder of polyester matrix and its surface attachment；It glues on the surface of several optical fiber
With water-proofing powder；The water-proofing powder is starch or polyacrylate.
Preferably, the skeleton grooves and skeleton are integral type machine-shaping, and the cross section of skeleton grooves is class sector structure；When
When the width of area S2, skeleton grooves and the ratio W/D of depth shared by the area S1 and fiber unit of skeleton grooves meet following formula, light
Cable can reach water permeability resistance energy and bending resistance：
0.6≤S2/S1≤0.8；1.5≤W/D≤2.5
In formula, W is the width of skeleton grooves, and D is the depth of skeleton grooves.
Preferably, the adhering resin is continuously distributed or intermittent point equidistant along fiber length
Cloth.
Preferably, the surface adhesion of several optical fiber has water-proofing powder, and the water-proofing powder is starch or polyacrylate.
Preferably, the waterstop is in a helical pattern around the outside of skeleton, and has the lap width of 2~4mm.
Preferably, the material of the binder is polyethylene, polyethylene terephthalate or polyamide.
Preferably, the thickness of the binder is 0.03mm~0.1mm, and width is 1.0mm~10mm, the binder
Shape is not limited only to banding or wraps up line for linear fiber.
Preferably, the skeleton is hard resin material, using makrolon, polybutylene terephthalate (PBT) or highly dense
Polyethylene.
Preferably, the reinforcer is metal or nonmetallic materials, and metal material is phosphating steel wire, stainless steel wire or steel twist
Line；The nonmetallic materials are fibre reinforced composites FRP, aramid fiber reinforcing optical cable reinforced core KFRP or basalt fibre
Reinforced resin BFRP.
Preferably, the cable jacket extrudes for polyethylene or nylon material.
The beneficial effects of the invention are as follows：
1. in slotted core fiber ribbon cable of the present invention, fibre ribbon be several optical fiber by adjacent sequential by adhering resin successively
It connects and along winding to be formed perpendicular to fiber length, section is circle, solves the flat-shaped fibre ribbon of conventional thin by bending
The problem of orientation limitation, i.e., along the good bandability in ribbon thickness direction, and the bendability along ribbon width direction is poor.This hair
Bright slotted core cable reduces fibre strain, has preferable bending resistance, avoid optical fiber from the limitation of bending direction
Decay bigger than normal or unstable caused line signal failure.
2. in slotted core fiber ribbon cable of the present invention, shape is fixed between fibre ribbon in a manner that spiral is twisted and through binder
Into the subelement of circular cross-section, then fix in a manner that spiral is twisted and through binder to be formed in skeleton grooves between each subelement
Fiber unit so that entire fiber unit structure is circle, and compact-sized, bending resistance is preferable.
3. in slotted core fiber ribbon cable of the present invention, each optical fiber surface is stained with water-proofing powder, expansion can be to optical fiber after meeting water
Gap between 8a~8h, between fibre ribbon and between skeleton grooves and fiber unit is filled blocking, avoids moisture to optical fiber
Intensity and attenuation impact.
4. in slotted core fiber ribbon cable of the present invention, framework material is hard resin material, and bending stiffness is big, ensure that
The good bending resistance of optical cable.
5. the section of the skeleton grooves of slotted core fiber ribbon cable of the present invention is class sector structure, fibre ribbon section is tied to be circular
Structure solves the problems, such as that direction limits by bending for rectangular framework slot and Boping shape fibre ribbon in traditional slotted core cable.
6. the fiber number of slotted core fiber ribbon cable of the present invention is big, outer diameter is small, light-weight, convenient for constructing and accessing behaviour
Make.
Description of the drawings
Fig. 1 is a kind of cross-sectional view of slotted core fiber ribbon cable；
Fig. 2 is the cross-sectional view of a skeleton grooves 5；
Fig. 3 is the cross-sectional view of subelement 7；
Fig. 4 is the cross-sectional structure schematic diagram of fibre ribbon 8；
Fig. 5 is the structure diagram of fibre ribbon 8 along its length；
Fig. 6 is the structure diagram of subelement 7；
Fig. 7 is the structure diagram of fiber unit 6.
In figure：1 is cable jacket, and 2 be waterstop, and 3 be reinforcer, and 4 be skeleton, and 5 be skeleton grooves, and 6 be fiber unit, 7
It is fibre ribbon (8a~8h is optical fiber) for subelement, 8,9 be adhering resin, and 10 be fibre ribbon binder, and 11 wrap up for subelement
Band.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but is not intended as appointing the present invention
The foundation of what limitation.
Fig. 1 is a kind of cross-sectional view of slotted core fiber ribbon cable of the present invention, including in skeleton 4 and embedded skeleton 4
The reinforcer 3 of the heart, the skeleton grooves 5 for being circumferentially with equidistantly distributed of skeleton 4 are equipped with fiber unit 6 in skeleton grooves 5, outside skeleton 4
Cladding waterstop 2 is enclosed, 2 outside of waterstop extrudes cable jacket 1.
Wherein, skeleton 4 is hard resin material, and makrolon (PC), polybutylene terephthalate (PBT) (PBT) can be used
Or high density polyethylene (HDPE), bending stiffness are more than 1000Mpa.The outer diameter of skeleton 4 is 20mm.
3 spiral of reinforcer is embedded in the center of skeleton 4, and reinforcer 3 is metal reinforcing material (phosphating steel wire, stainless steel
Silk, steel strand wires etc.) or nonmetallic reinforcement material (FRP, KFRP, BFRP etc.), to enhance the mechanical performance of optical cable.
Skeleton grooves 5 are equidistantly uniformly arranged along the periphery of skeleton 4, and the quantity of skeleton grooves 5 is five, each skeleton grooves 5
Cross section on groove width, groove depth and slot and the distance between slot must be strict controlled in certain error, ensure optical fiber list
6 energy of member is steady, is fitted exactly into skeleton grooves 5；Skeleton grooves 5 along reinforcer 3 axial direction in SZ types be distributed, skeleton grooves 5 it is transversal
Face is class fan shape.Skeleton grooves 5 are integral type machine-shaping with skeleton 4.
Waterstop 2 in a helical pattern around the outside of skeleton 4, it is wrapped must consolidation it is smooth, and have certain overlap joint wide
Degree, lap width can be 2~4mm.Waterstop 2 should avoid the optical fiber caused by the top layer optical fiber in skeleton grooves 5 around packet procedures
The harmful effects such as the even disconnected fine or disconnected fibre ribbon of attenuation increase.Waterstop 2 is by polyester matrix and the water-proofing powder structure of its surface attachment
Into water-proofing powder is the resin of water swelling, can be starch, polyacrylate etc..
In one embodiment, cable jacket 1 is polyethylene or nylon.Cable outer diameter is 24mm.
Fig. 2 is the cross-sectional view of a skeleton grooves 5.The quantity of skeleton grooves 5 is 5, but can be closed according to actual needs
Reason sets the quantity of skeleton grooves 5.The fiber unit 6 being contained in skeleton grooves 5 includes four subelements 7.Fiber unit 6 include by
The subelement 7 of several fibre ribbons 8 composition, subelement 7 pass through bonding by several optical fiber (8a~8h is optical fiber) by adjacent sequential
Resin is bonded curing connection successively and edge winds to be formed perpendicular to fiber length；The side being twisted between subelement 7 with spiral
Formula forms circular cross-section and forms fiber unit after binder wrapping is fixed.
The quantity of suitable subelement 7 is set according to the structure size of skeleton grooves 5.The width of skeleton grooves 5 is W, and depth is
D, area S1；Area shared by fiber unit 6 is S2.When S1 and S2, W and D meet 0.6≤S2/S1≤0.8；1.5≤W/D
When≤2.5, optical cable can realize excellent water permeability resistance energy and bending resistance.In particular, when the density of optic fibre in skeleton grooves 5 is higher
When, water-proofing powder on waterstop 2 can evenly into the bottom of skeleton grooves 5, on the one hand can effectively prevent moisture content vertically into
Row seepage flow, so as to fulfill the water permeability resistance energy that optical cable is excellent；On the other hand, ensure that subelement 7 is fixed reliable in skeleton grooves 5,
From optical cable when bending direction changes, optical fiber is caused to be slided in skeleton grooves, and then influence the service life of optical fiber.
Fig. 3 is the cross-sectional view of subelement 7, and subelement 7 includes 10 fibre ribbons 8.
Fig. 4 is the cross-sectional structure schematic diagram of fibre ribbon 8.Wherein, optical fiber 8a~8h passes through adhering resin 9 by adjacent sequential
8 optical fiber are sequentially connected, edge winds to form circular fibre ribbon 8 perpendicular to fiber length；The adhering resin 9 is along light
Fine length direction is continuously distributed or equidistant intermittent distribution.
The color of optical fiber 8a in each 5 inner fiber band 8 of skeleton grooves is different, to distinguish different skeleton grooves in construction,
The processing that continues is carried out to corresponding fiber unit.
Fig. 5 is the structure diagram of fibre ribbon 8 along its length.Before not winding, optical fiber 8a~8h is along its length
It is bonded by adhering resin 9 according to certain spacing distance, and the surface adhesion of optical fiber 8a~8h has water-proofing powder, meets water
Expansion can be filled blocking to the gap between optical fiber 8a~8h and between fibre ribbon 8 afterwards, avoid intensity of the moisture to optical fiber
It is impacted with attenuation.Fibre ribbon 8 of the present invention compared with the Boping shape fibre ribbon of traditional parallel arranged, to be circular tie by section
Structure solves the problems, such as that directionality limits conventional optical fiber ribbon by bending, i.e., along the good bandability in ribbon thickness direction, and along light
The bendability of fibre ribbons width is poor.Fibre ribbon 8 of the present invention has preferable bending resistance, from the limit of bending direction variation
System, avoid optical fiber attenuation it is bigger than normal or unstable caused by line signal failure.And 8 structure size of fibre ribbon is held in the present invention
Easy-regulating, so as to meet the requirement of large range of density of optic fibre and cable outer diameter.
Number of fibers in the present invention in fibre ribbon 8 is not limited to the number of fibers shown in Fig. 4 and Fig. 5, can be according to reality
It needs and the structure size of skeleton grooves 5, the shape of the fibre ribbon 8 of different number of fibers and coiling and molding is set, ensure and bone
Rack slot 5 matches.
Fig. 6 is the structure diagram of subelement 7.Figure neutron cells 7 include 10 fibre ribbons 8, and each fibre ribbon 8 is twisted with spiral
The mode of conjunction forms circular cross-section and wraps up fixation by fibre ribbon binder 10, forms subelement 7.The material of fibre ribbon binder 10
Material composition can be polyethylene, polyethylene terephthalate or polyamide.The thickness of fibre ribbon binder 10 is generally 0.03mm
~0.1mm, width 1.0mm~10mm, shape are not limited to banding or linear fiber wrapping line.Optical fiber in the present invention
10 shown in Fig. 6 are not limited to 8 quantity, reasonable selection setting can be carried out as needed.
Fig. 7 is the structure diagram of fiber unit 6.Fiber unit 6 includes 4 subelements 7 in figure, between each subelement 7
Circular cross-section is formed in a manner that spiral is twisted, then wraps up and fixes through subelement binder 11, form fiber unit 6.It is sub single
First binder 11 is identical with the material composition and shape thicknesses of fibre ribbon binder 10.The quantity of subelement 7 in the present invention is not
It is limited to 4 shown in Fig. 7, reasonable selection setting can be carried out as needed.
Optical cable shown in legend of the present invention includes five skeleton grooves 5, and the fiber unit 6 in each skeleton grooves 5 includes four
A subelement 7, each subelement 7 include ten fibre ribbons 8, and each fibre ribbon 8 includes eight optical fiber 8a~8h, therefore the present invention
Cable Core Number shown in legend is 1600 cores.It optical cable core number but is not limited to shown in legend, specific core number can basis
Actual demand is rationally set according to the method that the present invention illustrates.
The invention is not limited in above-described embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
Art personnel are not required performing creative labour that can make one to some of which technical characteristic according to disclosed technology contents
A little to replace and deform, these are replaced and deformation is within the scope of the present invention.
Claims (10)
1. a kind of slotted core fiber ribbon cable, including skeleton and the waterstop of skeleton periphery is coated on, has been extruded on the outside of waterstop
Cable jacket, which is characterized in that the skeleton grooves for being circumferentially with equidistantly distributed of the skeleton, skeleton grooves are interior to be equipped with optical fiber list
Member；The frame center is embedded with reinforcer, and skeleton grooves are axially distributed along reinforcer in SZ types；
The fiber unit includes the subelement that is formed by several fibre ribbons in a manner that spiral is twisted, if the fibre ribbon by
Dry optical fiber is bonded curing connection by adhering resin by adjacent sequential and is wound and along perpendicular to fiber length by wrapping successively
Band is wrapped up to be formed；Circular cross-section and the shape after binder wrapping is fixed are formed between the subelement in a manner that spiral is twisted
Into fiber unit.
2. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the waterstop is by polyester matrix
It is formed with the water-proofing powder of its surface attachment；The surface adhesion of several optical fiber has water-proofing powder；The water-proofing powder is starch or polypropylene
Acid esters.
3. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the skeleton grooves are one with skeleton
Body formula machine-shaping, the cross section of skeleton grooves is class sector structure；
Under area S2, the ratio W/D of the width of skeleton grooves and depth shared by the area S1 and fiber unit of skeleton grooves meet
During formula, optical cable can reach water permeability resistance energy and bending resistance；
0.6≤S2/S1≤0.8；1.5≤W/D≤2.5
In formula, W is the width of skeleton grooves, and D is the depth of skeleton grooves.
4. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that adhering resin is along fiber lengths side
To being continuously distributed or equidistant intermittent distribution.
5. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the waterstop is with the side of spiral
Formula has the lap width of 2~4mm around the outside of skeleton.
6. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the thickness of the binder is
0.03mm~0.1mm, width are 1.0mm~10mm, and the shape of the binder is not limited only to banding or is wrapped up for linear fiber
Line.
7. a kind of slotted core fiber ribbon cable according to claim 6, which is characterized in that the material of the binder is poly-
Ethylene, polyethylene terephthalate or polyamide.
8. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the skeleton is hard resin material
Material, using makrolon, polybutylene terephthalate (PBT) or high density polyethylene.
9. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the reinforcer is metal or non-
Metal material, the metal material are phosphating steel wire, stainless steel wire or steel strand wires；The nonmetallic materials are fiber-reinforced composite
Material FRP, aramid fiber reinforcing optical cable reinforced core KFRP or basalt fiber reinforced resin BFRP.
10. a kind of slotted core fiber ribbon cable according to claim 1, which is characterized in that the cable jacket is poly- second
Alkene or nylon material extrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032198.XA CN108061951B (en) | 2018-01-12 | 2018-01-12 | Skeleton type optical fiber ribbon optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032198.XA CN108061951B (en) | 2018-01-12 | 2018-01-12 | Skeleton type optical fiber ribbon optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061951A true CN108061951A (en) | 2018-05-22 |
| CN108061951B CN108061951B (en) | 2023-09-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810032198.XA Active CN108061951B (en) | 2018-01-12 | 2018-01-12 | Skeleton type optical fiber ribbon optical cable |
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| CN (1) | CN108061951B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047587A (en) * | 2022-01-13 | 2022-02-15 | 长飞光纤光缆股份有限公司 | Solidified bundled layer stranded optical cable and preparation method thereof |
| CN114397739A (en) * | 2022-03-25 | 2022-04-26 | 江苏中天科技股份有限公司 | Bundling optical cable and preparation method thereof |
| WO2022242194A1 (en) * | 2021-05-18 | 2022-11-24 | 烽火通信科技股份有限公司 | Optical fiber ribbon and optical cable |
| CN115639651A (en) * | 2021-12-07 | 2023-01-24 | 长飞光纤光缆股份有限公司 | Circular cross section optical fiber ribbon optical cable |
| WO2023193293A1 (en) * | 2022-04-08 | 2023-10-12 | 江苏俊知技术有限公司 | Composition for producing polycarbonate framework in cable and manufacturing method for framework |
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