CN109085685A - All dielectric flexibility access optical cable - Google Patents
All dielectric flexibility access optical cable Download PDFInfo
- Publication number
- CN109085685A CN109085685A CN201811245816.5A CN201811245816A CN109085685A CN 109085685 A CN109085685 A CN 109085685A CN 201811245816 A CN201811245816 A CN 201811245816A CN 109085685 A CN109085685 A CN 109085685A
- Authority
- CN
- China
- Prior art keywords
- loose tube
- optical cable
- reinforced plastics
- fiberglass reinforced
- access optical
- 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 57
- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 239000011152 fibreglass Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 15
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Abstract
The present invention relates to a kind of all dielectric flexibility access optical cables comprising: Loose tube；Two fiberglass reinforced plastics sticks, respectively side by side in the Loose tube two sides；Optical fiber is located in the Loose tube；Fiber paste is filled in the gap between the Loose tube and the optical fiber；And sheath, it is wrapped in outside the Loose tube and the fiberglass reinforced plastics stick；The diameter of the fiberglass reinforced plastics stick is greater than the diameter of the Loose tube.Above-mentioned all dielectric flexibility access optical cable, since fiberglass reinforced plastics stick and Loose tube are arranged side by side, and the diameter of fiberglass reinforced plastics stick is greater than the diameter of Loose tube；When it is by radial pressure, fiberglass reinforced plastics stick can be prior to Loose tube pressure-bearing, thus optical fiber of the effective protection in Loose tube, namely improves the lateral pressure resistant ability of optical cable.
Description
Technical field
The present invention relates to optical cable technology fields, more particularly to a kind of all dielectric flexibility access optical cable.
Background technique
Since fiber optic communication has many advantages, such as that speed is fast, transmission quality is good, it has been widely used at present.With fiber optic communication
Network it is continuous intensive, the mode of fiber entering household also becomes varied.For the normal transmission performance for ensuring optical fiber, to access light
The machinery and environmental performance of cable also have higher requirement.
Currently, access optical cable is generally divided into two kinds: one kind is butterfly leading in cable, and this optical cable is straight with sheath due to optical fiber
Contact, causes it in extraneous temperature change, often since jacket shrinkage causes optical fiber attenuation to increase.Another kind connects for circle
Enter optical cable, in the actual use environment, especially personnel activity's more frequently environment, due to lateral pressure resistant limited capacity, easily by
To artificial damage.
Summary of the invention
Based on this, it is necessary to provide a kind of new all dielectric flexibility access optical cable.
A kind of all dielectric flexibility access optical cable, comprising:
Loose tube；
Two fiberglass reinforced plastics sticks, respectively side by side in the Loose tube two sides；
Optical fiber is located in the Loose tube；
Fiber paste is filled in the gap between the Loose tube and the optical fiber；
And sheath, it is wrapped in outside the Loose tube and the fiberglass reinforced plastics stick；
The diameter of the fiberglass reinforced plastics stick is greater than the diameter of the Loose tube.
Above-mentioned all dielectric flexibility access optical cable, since fiberglass reinforced plastics stick and Loose tube are arranged side by side, and glass
The diameter of fiber reinforcement plastic charge bar is greater than the diameter of Loose tube；When it is by radial pressure, fiberglass reinforced plastics stick meeting
Prior to Loose tube pressure-bearing, thus optical fiber of the effective protection in Loose tube, namely improve the lateral pressure resistant ability of optical cable.
Compared with common butterfly access optical cable, the center Loose tube structure that above-mentioned all dielectric flexibility access optical cable uses,
So as to give optical fiber enough free spaces；In particular, considerably reducing sheath receipts when ambient temperature changes
The influence contracted to optical fiber.
Compared with common round access optical cable, above-mentioned all dielectric flexibility access optical cable is in flat structure substantially, by
When radial pressure, forced area is bigger, and the pressure of unit area is smaller, and lateral pressure resistant performance is more preferably.
Wherein, the diameter of the fiberglass reinforced plastics stick is greater than diameter 0.1mm~0.2mm of the Loose tube.
Wherein, the external surface shape of the sheath is adapted with the outer surface of simultaneously isostere；Described and isostere is covered by the pine
Pipe is formed with the fiberglass reinforced plastics stick.
Wherein, the sheath with a thickness of 0.3mm~0.5mm.
Wherein, water blocking yarn is provided with outside the Loose tube.
Wherein, the radical of the water blocking yarn is two.
Wherein, the line density 600dtex or more of the water blocking yarn.
Wherein, the unwrapping wire mode of the water blocking yarn is around putting.
Wherein, the Loose tube is PBT Loose tube.
Wherein, the sheath is HDPE sheath.
Detailed description of the invention
Fig. 1 is the schematic cross-section of all dielectric flexibility access optical cable of one embodiment of the invention.
Fig. 2 is the schematic cross-section of all dielectric flexibility access optical cable of another embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right below in conjunction with specific embodiment
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
It is not intended to limit the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " it include one or more
Any and all combinations of relevant listed item.
Referring to Fig. 1, all dielectric flexibility access optical cable of one embodiment of the invention, including optical fiber 1, fiber paste 2, Loose tube 3,
Fiberglass reinforced plastics stick 4 and sheath 7.
Wherein, optical fiber 1 is the core component of all dielectric flexibility access optical cable.Preferably, optical fiber 1 is silica fibre.Certainly,
It is understood that optical fiber 1 is not limited to silica fibre, it can also be other optical fiber.
Wherein, the main function of Loose tube 3 is to protect optical fiber 1.Optical fiber 1 is located in Loose tube 3 namely 3 sets of Loose tube exists
Outside optical fiber 1.In the present embodiment, the radical of the optical fiber in Loose tube 3 is 2.It is, of course, also possible to be one or more.
In the present embodiment, Loose tube 3 is PBT Loose tube；It can be further improved 3 anti-pressure ability of Loose tube in this way, from
And be conducive to improve the lateral pressure resistant performance of all dielectric flexibility access optical cable.It is, of course, understood that other pines can also be used
Casing.
Wherein, the main function of fiber paste 2 is fixed optical fiber 1.Fiber paste 2 is filled in the gap between Loose tube 3 and optical fiber 1；
That is, it is fiber paste 2 that the outside of optical fiber 1, which surrounds all, and fiber paste 2 is limited in Loose tube 3.Preferably, fiber paste 2 is oil
Cream.In the present embodiment, fiber paste 2 is that thixotropy blocks water fiber paste.It can be further improved the waterproof performance of optical cable in this way.
Wherein, fiberglass reinforced plastics stick (FRP) 4 is two, respectively side by side in the two sides of Loose tube 3；That is,
Loose tube 3 is located at centre, and the side of a Loose tube 3 fiberglass reinforced plastics stick 4 side by side, the other side of Loose tube 3 is side by side
Another fiberglass reinforced plastics stick 4, three is substantially in same level.
The diameter of fiberglass reinforced plastics stick 4 is greater than the diameter of Loose tube 3.When all dielectric flexibility access optical cable is by diameter
When to pressure, fiberglass reinforced plastics stick 4, can be prior to 3 pressure-bearing of Loose tube, so that effective protection is located at pine since diameter is big
Optical fiber 1 in casing 3, namely improve the lateral pressure resistant ability of optical cable.
Preferably, the diameter of fiberglass reinforced plastics stick 4 is greater than diameter 0.1mm~0.2mm of Loose tube 3.Namely glass
The difference of the diameter of the diameter and Loose tube 3 of glass fiber reinforcement plastic charge bar 4 is 0.1mm~0.2mm.Optical cable both can be improved in this way
Lateral pressure resistant ability, while good shape can be kept again.
In the present embodiment, between fiberglass reinforced plastics stick 4 and Loose tube 3 it is close side by side namely glass fibre increases
There is no gap between strong sticking plaster 4 and Loose tube 3, be located next to.
Wherein, sheath 7 is wrapped on Loose tube 3 and fiberglass reinforced plastics stick 4.The main function of sheath 7 is to protect
Loose tube 3 and fiberglass reinforced plastics stick 4.
Further, sheath 7 is preferably PE sheath, more preferably HDPE sheath.All dielectric can be further enhanced in this way
The integral strength of flexible access optical cable.
In the present embodiment, the external surface shape of sheath 7 is adapted with the outer surface of simultaneously isostere；And isostere is by Loose tube 3
It is formed with fiberglass reinforced plastics stick 4.That is, the external surface shape of sheath 7 and Loose tube 3 and glass fiber reinforcement are moulded
The shape of charge bar 4 side by side is almost the same.Namely the thickness of sheath 7 is almost the same.The outer surface wave of sheath 7 in this way is uneven, can
To further increase the lateral pressure resistant performance of all dielectric flexibility access optical cable.
Preferably, sheath 7 with a thickness of 0.3mm~0.5mm.It can be further improved all dielectric flexibility access optical cable in this way
Performance.
Above-mentioned all dielectric flexibility access optical cable, since fiberglass reinforced plastics stick and Loose tube are arranged side by side, and glass
The diameter of fiber reinforcement plastic charge bar is greater than the diameter of Loose tube；When it is by radial pressure, fiberglass reinforced plastics stick meeting
Prior to Loose tube pressure-bearing, thus optical fiber of the effective protection in Loose tube, namely improve the lateral pressure resistant ability of optical cable.
Compared with common butterfly access optical cable, the center Loose tube structure that above-mentioned all dielectric flexibility access optical cable uses,
So as to give optical fiber enough free spaces；In particular, considerably reducing sheath receipts when ambient temperature changes
The influence contracted to optical fiber.
Compared with common round access optical cable, above-mentioned all dielectric flexibility access optical cable is in flat structure substantially, by
When radial pressure, forced area is bigger, and the pressure of unit area is smaller, and lateral pressure resistant performance is more preferably.
Above-mentioned all dielectric flexibility access optical cable is all-medium structure, has anti-lightning strike, light-weight and is easy to construction maintenance etc.
Advantage.
Referring to fig. 2, Fig. 2 is the schematic cross-section of all dielectric flexibility access optical cable of another embodiment of the present invention.With it is upper
One embodiment outside Loose tube 3 the difference is that be provided with water blocking yarn 6.Water blocking yarn 6 is set, steam intrusion can be effectively prevented
In Loose tube 3, so that protection is located at the optical fiber in Loose tube 3, the water repelling property of all dielectric flexibility access optical cable is helped to improve.
In the present embodiment, the radical of water blocking yarn 6 is two.It is, of course, understood that the radical of water blocking yarn 6 can be with
It adjusts according to the actual situation.
Preferably, the line density 600dtex or more of water blocking yarn 6.It can be further improved the water preventing ability of water blocking yarn 6 in this way
Can, and then improve the water repelling property of all dielectric flexibility access optical cable.
In the present embodiment, the unwrapping wire mode of water blocking yarn 6 is around putting.It can further prevent seeping water outside Loose tube 3 in this way,
To improve the performance of all dielectric flexibility access optical cable.
The width of above-mentioned all dielectric flexibility access optical cable is generally 4.4mm~5.0mm；The height of all dielectric flexibility access optical cable
Degree is generally 1.8mm~2.2mm.Its weight is generally up to 13kg/km~15kg/km.Its short-term permission pulling force is more than or equal to
500N。
The preparation process of all dielectric flexibility access optical cable of the invention is sketched below.
Optical fiber: being coated different colors by the first step, optical fiber coloring, and whole chromatogram or chromatography of piloting can be selected, it is desirable that coloring
Optical fibre high temp is colour-fast afterwards, guarantees readily identified when the later period connects.
Second step, plastic sleeve；Optical fiber after coloring is placed in the high-modulus Loose tube for the fiber paste that blocks water filled with thixotropy, and
By control folding and unfolding linear velocity and sink temperature, make Loose tube inner fiber that there is stable excess length control and transmission characteristic.
Third step, sheath: two FRP slightly larger than Loose tube are placed in Loose tube two sides in parallel, center between Loose tube and FRP
Symmetrically placed 2 water blocking yarns, then one layer of sheath is wrapped up by extrusion head outside.
4th step, detection outbound: arranging every batch of finished product optical fiber cable to do full performance test, guarantees qualified post package outbound.
Above-mentioned all dielectric access optical cable has high lateral pressure resistant ability, the resistance in Loose tube outside fiber paste and Loose tube
Water yarn ensure that the block-water performance of optical cable；Secondly, the optical cable is small in size, light-weight, enhanced convenience in use process, flexibly；
Again, which has anti-lightning strike feature, the introducing being more suitable in building；Finally, this cable configuration is simple, former material
Expect that dosage is few, reduces product cost, provide power-assisted for the promotion and application of product.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of all dielectric flexibility access optical cable characterized by comprising
Loose tube；
Two fiberglass reinforced plastics sticks, respectively side by side in the Loose tube two sides；
Optical fiber is located in the Loose tube；
Fiber paste is filled in the gap between the Loose tube and the optical fiber；
And sheath, it is wrapped in outside the Loose tube and the fiberglass reinforced plastics stick；
The diameter of the fiberglass reinforced plastics stick is greater than the diameter of the Loose tube.
2. all dielectric flexibility access optical cable according to claim 1, which is characterized in that the fiberglass reinforced plastics stick
Diameter be greater than the Loose tube diameter 0.1mm~0.2mm.
3. all dielectric flexibility access optical cable according to claim 1, which is characterized in that the external surface shape of the sheath with
And the outer surface of isostere is adapted；Described and isostere is made of the Loose tube and the fiberglass reinforced plastics stick.
4. all dielectric flexibility access optical cable according to claim 3, which is characterized in that the sheath with a thickness of 0.3mm
~0.5mm.
5. all dielectric flexibility access optical cable according to claim 1, which is characterized in that be provided with and block water outside the Loose tube
Yarn.
6. all dielectric flexibility access optical cable according to claim 5, which is characterized in that the radical of the water blocking yarn is two
Root.
7. all dielectric flexibility access optical cable according to claim 5, which is characterized in that the line density of the water blocking yarn
600dtex or more.
8. all dielectric flexibility access optical cable according to claim 5, which is characterized in that the unwrapping wire mode of the water blocking yarn is
Around putting.
9. all dielectric flexibility access optical cable according to claim 1, which is characterized in that the Loose tube is PBT Loose tube.
10. all dielectric flexibility access optical cable according to claim 1, which is characterized in that the sheath is HDPE sheath.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245816.5A CN109085685A (en) | 2018-10-24 | 2018-10-24 | All dielectric flexibility access optical cable |
| PCT/CN2019/108361 WO2020082983A1 (en) | 2018-10-24 | 2019-09-27 | All-dielectric, flexible fiber-optic access cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245816.5A CN109085685A (en) | 2018-10-24 | 2018-10-24 | All dielectric flexibility access optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109085685A true CN109085685A (en) | 2018-12-25 |
Family
ID=64844064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245816.5A Pending CN109085685A (en) | 2018-10-24 | 2018-10-24 | All dielectric flexibility access optical cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109085685A (en) |
| WO (1) | WO2020082983A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020082983A1 (en) * | 2018-10-24 | 2020-04-30 | 江苏亨通光电股份有限公司 | All-dielectric, flexible fiber-optic access cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020082983A1 (en) | 2020-04-30 |
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