CN109298495A - Large core number air-blowing micro-cable based on fiber bundle structure - Google Patents
Large core number air-blowing micro-cable based on fiber bundle structure Download PDFInfo
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- CN109298495A CN109298495A CN201811463892.3A CN201811463892A CN109298495A CN 109298495 A CN109298495 A CN 109298495A CN 201811463892 A CN201811463892 A CN 201811463892A CN 109298495 A CN109298495 A CN 109298495A
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- 239000000835 fiber Substances 0.000 title claims abstract description 69
- 238000007664 blowing Methods 0.000 title claims abstract description 42
- 239000013307 optical fiber Substances 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004040 coloring Methods 0.000 claims description 5
- 239000006071 cream Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 8
- 208000019901 Anxiety disease Diseases 0.000 abstract description 3
- 230000036506 anxiety Effects 0.000 abstract description 3
- 238000001723 curing Methods 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 230000002194 synthesizing effect Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000013589 supplement Substances 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
- G02B6/441—Optical cables built up from sub-bundles
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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 large core number air-blowing micro-cable based on fiber bundle structure, include center reinforcemen, water blocking yarn, several optical fiber bundle units and oversheath, several optical fiber bundle units are stranded on the outside of center reinforcemen, on the outside of several optical fiber bundle units and center reinforcemen being twisted, optical fiber bundle unit is constituted oversheath extrusion molding by multifiber coated with resins and after ultraviolet light solidifies.The present invention using by optical fiber curing at fiber optic bundle by the way of direct stranding, fiber capacity is high, outer diameter is small, the pipeline resource completed can be effectively utilized and carry out fiber cable laying, the utilization rate of fibre core is improved in limited pipeline space, it can alleviate because of pipeline resource anxiety caused by communicating pipe network dilatation in city, meet the demand of the growing high-density optical-fiber core number of optical cable.
Description
Technical field
The present invention relates to a kind of air-blowing micro-cable, especially a kind of large core number air-blowing micro-cable based on fiber bundle structure.
Background technique
Micro-pipe is first blown into using the system of laying of " main pipe+sub- pipe+micro- cable " using compressed air by air-blowing micro-cable technology
It is sustainable that micro- cable is blown into micro-pipe then according to growth requirement in the main pipe of laying.The technology can efficiently solve fortune
The problems such as performance cost of investment of quotient is high, communication pipe resource is nervous is sought, is accessing net, Metropolitan Area Network (MAN), communication trunk net etc. all
There is large-scale application.With the sustainable growth of transinformation and the quickening of metropolitan broadband network network construction speed, to big core
The demand of number optical cable gradually increases, and is limited by urban Underground pipeline space, and existing available pipeline resource is increasingly reduced.
Current existing air-blowing micro-cable generally uses Loose tube layer-twisted type structure, and the fiber capacity in a Loose tube is general
No more than 12 cores.By taking 72 core air-blowing micro-cables as an example, cable core has 6 Loose tube units, there is 12 optical fiber, pine set in every Loose tube
General outer diameter is managed in 1.4mm ~ 1.7mm or so, cable outer diameter is generally in 5.5mm ~ 6.0mm or so.It, can to improve Cable Core Number
To increase number of fibers in Loose tube, or increase Loose tube and be twisted radical, these can all be such that cable outer diameter increases, and increase cable weight
While also improve the duty ratio of optical cable and pipeline, influence air-blowing effect.Meanwhile optical fiber is generally oily using filling with Loose tube
Herbal paste formula blocks water, and in optical cable installation and fibre junction needs that the time is spent to carry out ointment cleaning, reduces fused fiber splice
Efficiency improves the installation cost of optical cable.
In order to maximumlly utilize pipeline space, air-blowing effect is improved, generally 96 core layer-twisted type air-blowing micro-cable outer diameters exist
6.8mm or so is laid in the sub- pipe of 10mm/8mm and carries out air-blown installation；And 144 core layer-twisted type air-blowing micro-cable outer diameters are in 8.8mm
Left and right, then need to be laid in the sub- pipe of 12mm/10mm and carry out air-blown installation.Due to what can be laid in the main pipe of 40mm/33mm
The sub- pipe limited amount of 10mm/8mm or 12mm/10mm, this just determines that the maximum fiber core number that can be accommodated in main pipe is limited.
If increasing Cable Core Number under identical structure, reduces cable size and to the greatest extent may be used in limited sub- tube space
The air-blowing micro-cable of energy ground laying large core number, so that it may effectively improve pipeline utilization rate, alleviate communication pipe network dilatation in city and draw
The pipeline resource risen is nervous, meets the needs of ever-increasing high-density optical-fiber core number.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of large core number air-blowing micro-cable based on fiber bundle structure, optical fiber
Capacity is high, and outer diameter is small.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of large core number air-blowing micro-cable based on fiber bundle structure, it is characterised in that: comprising center reinforcemen, water blocking yarn, several
Root optical fiber bundle unit and oversheath, several optical fiber bundle units are stranded on the outside of center reinforcemen, and oversheath extrusion molding is being twisted
Several optical fiber bundle units and center reinforcemen on the outside of, optical fiber bundle unit solidifies by multifiber coated with resins and through ultraviolet light
After constitute.
Further, for the optical fiber of the optical fiber bundle unit using G.652 optical fiber, coat diameter is 180 μm -255 μm.
Further, for the optical fiber of the optical fiber bundle unit using G.657 optical fiber, coat diameter is 180 μm -255 μm.
Further, the multifiber is coloured using whole chromatogram or the whole chromatogram coloring mode of colored rings carries out area
Point.
Further, the water blocking yarn is filled in several between optical fiber bundle unit and center reinforcemen, whole using bundle
Yarn winding.
Further, the waterstop longitudinal wrap is on the outside of stranded optical fiber bundle unit and center reinforcemen.
Further, by the cable cream substitution that blocks water, the cable cream that blocks water is filled between optical fiber bundle unit the water blocking yarn.
Further, the oversheath uses high density polyethylene (HDPE), and oversheath wall thickness is 0.4mm-0.5mm.
Further, the oversheath uses the polythene material or nylon material of low friction.
It further, also include tear rope, tear rope is arranged on outer jacket inner wall.
Compared with prior art, the present invention having the following advantages that and effect: the present invention is used optical fiber curing into fiber optic bundle
Mode twisted synthesizing cable, compared with the air-blowing micro-cable of common Loose tube structure, cable outer diameter reduces, and fibre core density significantly increases；
And reduces fiber size, cable diameter can be further decreased, increase fibre core density；It is suitble to lay higher optical fiber in identical sub- pipe
The air-blowing micro-cable of density improves fiber capacity in limited pipeline space, alleviates and draws because communicating pipe network dilatation in city
The pipeline resource anxiety problem risen, meets the demand of growing high-density optical-fiber core number.Meanwhile it being substituted using fiber optic bundle
Loose tube preparation dry type air-blowing micro-cable, in fibre junction without spend time and cost go cleaning ointment, clean and environmental protection,
Fusion efficiency is substantially increased, optical cable installation cost is reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment 1 of the large core number air-blowing micro-cable of the invention based on fiber bundle structure.
Fig. 2 is the schematic diagram of the embodiment 2 of the large core number air-blowing micro-cable of the invention based on fiber bundle structure.
Fig. 3 is the schematic diagram of the embodiment 3 of the large core number air-blowing micro-cable of the invention based on fiber bundle structure.
Specific embodiment
Below by embodiment, the present invention is described in further detail, following embodiment be explanation of the invention and
The invention is not limited to following embodiments.
A kind of large core number air-blowing micro-cable based on fiber bundle structure includes center reinforcemen 2, water blocking yarn 3, several optical fiber
Shu Danyuan 1 and oversheath 4, several optical fiber bundle units 1 are stranded in the outside of center reinforcemen 2, and 4 extrusion molding of oversheath is being twisted
2 outside of several optical fiber bundle units 1 and center reinforcemen, optical fiber bundle unit 1 is by multifiber coated with resins and through UV light
It is constituted after change.In order to facilitate sheath stripping and easy for construction, tear rope 5 can be added in 4 internal layer of oversheath.
Optical fiber bundle unit 1 is using a certain number of optical fiber by solidifying shape through ultraviolet light after curing mold application of resin
At round fiber beam, flexibility is good, easily peelable.Wherein, fiber type can use G.652 optical fiber and G.657 optical fiber, coating
For layer diameter at 245 μm -255 μm or so, number of fibers is 2-24 root.As shown in Figure 1, Figure 2, Figure 3 shows, every optical fiber bundle unit 1 wraps
It containing 24 optical fiber, distinguishes for convenience, the 12 of 12 core fibres of whole chromatogram coloring and the whole chromatogram coloring of colored rings is respectively adopted
Core fibre, whole chromatogram include but is not limited to blue, orange, green, comprehensive, grey, white, red, black, yellow, purple, pink, dark green, permissible true qualities
Optical fiber replaces white optical fiber.1 outer diameter of optical fiber bundle unit is in 1.50mm-1.60mm after solidification.It, can be after hardening for the ease of identification
Round fiber beam cell surface carry out lettering mark.
Coating diameter can be used in 180 μm -200 μm of small size optical fiber in 1 inner fiber of optical fiber bundle unit, further decreases light
Fine beam size, fiber type can be G.652 optical fiber and G.657 optical fiber.Using 180 μm of optical fiber, optical fiber after 24 optical fiber curings
Beam outer diameter is in 1.15mm-1.25mm；Using 200 μm of optical fiber, fiber optic bundle outer diameter is in 1.25mm-1.35mm after 24 optical fiber curings；
Cable core is to be surrounded on outside center reinforcemen 2 to be twisted using SZ using more round fiber Shu Danyuan 1, fiber optic bundle list
Water blocking yarn is filled between member 1 and center reinforcemen 2, and using yarn winding is pricked, guarantees the rounding property of cable core structure.Twisted radical one
As be 6-8 root, as shown in Figure 1, cable core uses 6 fiber optic bundle layer-twisted type structures, amount to 144 core of fiber number, cable after stranding
Core outer diameter is in 4.5mm-4.8mm or so.As shown in Fig. 2, cable core uses 8 fiber optic bundle layer-twisted type structures, amount to fiber number
192 cores, conductor assembly outer diameter is in 5.6mm-6.0mm or so after stranding.
The cable core structure of above-mentioned dry type can also use waterstop longitudinal wrap after optical fiber bundle unit 1 is twisted；Or using half-dried
The cable core structure of formula fills the cable cream that blocks water between fiber optic bundle.
Oversheath 4 uses high density polyethylene (HDPE), and sheath wall thickness is 0.4mm-0.5mm.Air-blowing micro-cable extrusion molding as shown in Figure 1
After sheath, cable outer diameter is in 5.3mm-5.8mm；After air-blowing micro-cable extrusion molding sheath as shown in Figure 2, cable outer diameter is in 6.4mm-
7.0mm；Compared with mutually isostructural Loose tube layer-twisted type air-blowing micro-cable, cable outer diameter is obviously reduced, and fiber number increases, and two
Kind is laid using the sub- pipe that 10mm/8mm all can be used in the air-blowing micro-cable of optical fiber bundle unit, is shown in limited pipeline space
What is write improves fiber capacity, can alleviate because of pipeline resource anxiety caused by communicating pipe network dilatation in city, while meeting day
The demand for the high-density optical-fiber core number that benefit increases.
The polyethylene sheath material or nylon material of low friction also can be used in oversheath 4, reduces micro-pipe inner wall and optical cable shield
The coefficient of friction on surface is covered, air-blowing performance is improved.
Embodiment 1:
As shown in Figure 1, the 144 core air-blowing micro-cables based on fiber bundle structure, cable core is using fiber optic bundle after 24 180 μm of optical fiber curings
Twisted synthesizing cable, conductor assembly outer diameter after 3.55mm-3.85mm, extrusion molding sheath outer diameter in 4.35mm-4.85mm；Using 24 200 μm
Fiber optic bundle twisted synthesizing cable after optical fiber curing, conductor assembly outer diameter after 3.85mm-4.15mm, sheath outer diameter in 4.65mm-5.15mm.
Embodiment 2:
As shown in Fig. 2, the 196 core air-blowing micro-cables based on fiber bundle structure, cable core is using fiber optic bundle after 24 180 μm of optical fiber curings
Twisted synthesizing cable, conductor assembly outer diameter after 4.40mm-4.70mm, extrusion molding sheath outer diameter in 5.20mm-5.70mm；Using 24 200 μm
Fiber optic bundle twisted synthesizing cable after optical fiber curing, conductor assembly outer diameter after 4.7mm-5.1mm, extrusion molding sheath outer diameter in 5.50mm-6.10mm.
Embodiment 3:
According to small size optical fiber, cable core is twisted radical and can be improved to 12, adds up fiber number up to 288 cores, structure such as Fig. 3
It is shown.Cable core is using fiber optic bundle twisted synthesizing cable after 24 180 μm of optical fiber curings, and conductor assembly outer diameter is in 5.90mm-6.50mm, extrusion molding shield
Outer diameter is in 6.70mm-7.50mm after set；Using fiber optic bundle twisted synthesizing cable after 24 200 μm of optical fiber curings, conductor assembly outer diameter exists
6.50mm-7.0mm, outer diameter is in 7.30mm-8.00mm after extrusion molding sheath.
Large core number air-blowing micro-cable based on fiber bundle structure of the invention, including but not limited to above structure, can basis
The core number demand of practical optical cable replaces a certain number of fiber optic bundles using the gasket for packing of same size, make Cable Core Number 24 cores ~
288 cores.
Large core number air-blowing micro-cable based on fiber bundle structure of the invention can effectively improve pipeline resource utilization rate, lay
It is high-efficient, it has a wide range of applications in access net, Metropolitan Area Network (MAN), communication trunk net etc., especially in European Region, to air-blowing micro-cable
Demand is growing day by day.With the sustainable growth of transinformation and the quickening of metropolitan broadband network network construction speed, operator pair
The requirement of pipeline space utilization rate is also higher and higher.Present invention decreases cable sizes, improve fiber capacity, can expire well
Sufficient user demand is suitble to promote.
Above content is only illustrations made for the present invention described in this specification.Technology belonging to the present invention
The technical staff in field can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, only
It should belong to guarantor of the invention without departing from the content or beyond the scope defined by this claim of description of the invention
Protect range.
Claims (10)
1. a kind of large core number air-blowing micro-cable based on fiber bundle structure, it is characterised in that: if comprising center reinforcemen, water blocking yarn,
Dry root optical fiber bundle unit and oversheath, several optical fiber bundle units are stranded on the outside of center reinforcemen, and oversheath extrusion molding is twisted
On the outside of good several optical fiber bundle units and center reinforcemen, optical fiber bundle unit is by multifiber coated with resins and through UV light
It is constituted after change.
2. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the fiber optic bundle
For the optical fiber of unit using G.652 optical fiber, coat diameter is 180 μm -255 μm.
3. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the fiber optic bundle
For the optical fiber of unit using G.657 optical fiber, coat diameter is 180 μm -255 μm.
4. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the more light
Fibre is distinguished using the whole chromatogram coloring mode of whole chromatogram coloring or colored rings.
5. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the waterstop
Several are filled between optical fiber bundle unit and center reinforcemen, it is whole using bundle yarn winding.
6. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the water blocking yarn
Longitudinal wrap is on the outside of stranded optical fiber bundle unit and center reinforcemen.
7. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the water blocking yarn
By the cable cream substitution that blocks water, the cable cream that blocks water is filled between optical fiber bundle unit.
8. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the oversheath
Using high density polyethylene (HDPE), oversheath wall thickness is 0.4mm-0.5mm.
9. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: the oversheath
Using the polythene material or nylon material of low friction.
10. the large core number air-blowing micro-cable described in accordance with the claim 1 based on fiber bundle structure, it is characterised in that: also comprising tearing
Rope is split, tear rope is arranged on outer jacket inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463892.3A CN109298495A (en) | 2018-12-03 | 2018-12-03 | Large core number air-blowing micro-cable based on fiber bundle structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463892.3A CN109298495A (en) | 2018-12-03 | 2018-12-03 | Large core number air-blowing micro-cable based on fiber bundle structure |
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| CN109298495A true CN109298495A (en) | 2019-02-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112363285A (en) * | 2020-11-11 | 2021-02-12 | 江苏亨通光电股份有限公司 | Miniaturized optical cable for pipeline and construction method thereof |
| WO2021082685A1 (en) * | 2019-10-29 | 2021-05-06 | 江苏亨通光电股份有限公司 | Ultra-high-density and high-fiber-count air-blown microcable and manufacturing process thereof |
| CN113376776A (en) * | 2021-05-11 | 2021-09-10 | 浙江东通光网物联科技有限公司 | 5G-used optical cable with ultra-large core number |
| CN113419318A (en) * | 2021-06-17 | 2021-09-21 | 江苏中天科技股份有限公司 | Micro cable, manufacturing method thereof and filling device |
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