CN204613461U - High density optical cable - Google Patents
High density optical cable Download PDFInfo
- Publication number
- CN204613461U CN204613461U CN201520173986.2U CN201520173986U CN204613461U CN 204613461 U CN204613461 U CN 204613461U CN 201520173986 U CN201520173986 U CN 201520173986U CN 204613461 U CN204613461 U CN 204613461U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- loose tube
- fibre bundle
- layer
- high density
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 32
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005728 strengthening Methods 0.000 claims description 17
- 239000003063 flame retardant Substances 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- -1 Loose tube Substances 0.000 abstract description 2
- 230000004069 differentiation Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Details Of Indoor Wiring (AREA)
Abstract
The utility model discloses a kind of high density optical cable, comprise optical fiber, Loose tube, water blocking layer, aramid fiber layer and oversheath, wherein optical fiber is positioned at Loose tube with the form of fibre bundle, set gradually water blocking layer, aramid fiber layer, oversheath outside Loose tube, described fibre bundle is multiply, and per share fibre bundle has 12 optical fiber, these 12 optical fiber divide inside and outside two-layerly strandedly to form, internal layer 3, outer 9, internal layer direction of lay is contrary with outer direction of lay.Optical fiber in the utility model Loose tube is positioned at Loose tube with the form of fibre bundle, to be all that 12 optical fiber is stranded form per share fibre bundle, 12 optical fiber divide two-layer phase strand, multiply fibre bundle is stranded at Loose tube inside spin, make optical fiber excess length more even, bendability is better, and 12 optical fiber are a branch of, be convenient to differentiation continue, convenient construction.
Description
Technical field
The utility model relates to a kind of high density optical cable, belongs to technical field of optical fiber communication.
Background technology
Along with the sustainable growth of transinformation, need to lay a large amount of optical cables with the needs of satisfied communication, but, optical cable lay the restriction being subject to urban Underground pipeline space, therefore, need to provide high fiber count cable, particularly minor diameter, highdensity high fiber count cable meets and lays needs.
Mostly traditional high fiber count cable is slotted core cable, is optical fiber to be placed in skeleton grooves make, and its diameter is comparatively large, and heavier-weight, optical fiber unit intensity is less, limits application.12 core optic fibre belt optics are adopted to be one of effective ways improving optical fibre in optical cable density, but because fibre ribbon duplexer is rectangle, still waste space in certain Loose tube, simultaneously in production technology, in order to not allow fibre ribbon flange, fibre ribbon duplexer spiral is twisted in Loose tube.This structure is had a surplus the shortcomings such as long uneven, sideband excessive distortion.In high density case, when the situation that fibercuts and loss of optical signal increase just easily appears in External Force Acting on fibre ribbon.
Utility model content
It is good that the utility model technical issues that need to address are to provide a kind of flexibility, and remaining length is even, be convenient to that multicore continues simultaneously high density optical cable.
For solving the problem, technical solution adopted in the utility model is:
A kind of high density optical cable, comprise optical fiber, Loose tube, water blocking layer, aramid fiber layer and oversheath, wherein optical fiber is positioned at Loose tube with the form of fibre bundle, set gradually water blocking layer, aramid fiber layer, oversheath outside Loose tube, described fibre bundle is multiply, and per share fibre bundle has 12 optical fiber, these 12 optical fiber divide inside and outside two-layerly strandedly to form, internal layer 3, outer 9, internal layer direction of lay is contrary with outer direction of lay.
Preferably, in Loose tube, the quantity of fibre bundle is that more than 3 bundles or 3 are restrainted, spiral is stranded in Loose tube.
Preferably, described oversheath is halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket.
Further, also comprise at least two strengthening cores, described strengthening core is evenly arranged in oversheath, the center line of described strengthening core and the centerline parallel of described Loose tube, and every root strengthening core is all equal with the distance between Loose tube.Described strengthening core is phosphating steel wire.
The beneficial effect adopting technique scheme to produce is:
Optical fiber in the utility model Loose tube is positioned at Loose tube with the form of fibre bundle, to be all that 12 optical fiber is stranded form per share fibre bundle, 12 optical fiber divide two-layer phase strand, multiply fibre bundle is stranded at Loose tube inside spin, make optical fiber excess length more even, bendability is better, and 12 optical fiber are a branch of, be convenient to differentiation continue, convenient construction.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1, oversheath, 2, aramid fiber layer, 3, water blocking layer, 4, Loose tube, 5, optical fiber, 6, strengthening core.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail:
A kind of diameter that the utility model is a kind of limited resources for adaptation modern city underground utilities and develops is little, and the high density optical cable that fiber number is many, meets the requirement of communication.
As shown in Figure 1, the utility model comprises optical fiber 5, Loose tube 4, water blocking layer 3, aramid fiber layer 2 and oversheath 1, wherein optical fiber 5 is positioned at Loose tube 4 with the form of fibre bundle, water blocking layer 3 is set gradually outside Loose tube 4, aramid fiber layer 2, oversheath 1, the utility model adopts central beam tube type structure, eliminate central reinforce member, more optical fiber can be set, and the form of fibre bundle is all arranged to by all optical fiber, described fibre bundle is multiply, per share fibre bundle has 12 optical fiber, these 12 optical fiber divide inside and outside two-layerly strandedly to form, internal layer 3, outer 9, internal layer direction of lay is contrary with outer direction of lay.Be the form of 1 bundle like this with 12, when facilitating large core number optical fiber construction, the continuing and distinguishing of optical fiber.The stranded mode of two-layer employing both forward and reverse directions, makes its structure more stable, not easily reverse, and for whole optical cable, its bendability is better.
In order to make full use of the space of Loose tube 4, place many fibre bundles as far as possible, in Loose tube, the quantity of fibre bundle is that more than 3 bundles or 3 are restrainted, spiral is stranded in Loose tube 4.
The utility model does not have center strengthening core, in order to ensure the intensity of optical cable, be provided with at least two strengthening cores 6, described strengthening core 6 is evenly arranged in oversheath 1, the center line of described strengthening core 6 and the centerline parallel of described Loose tube 4, and every distance between root strengthening core 6 with Loose tube 4 is all equal.And described strengthening core 6 adopts phosphating steel wire.
In order to improve optical cable fire protecting performance, oversheath 1 of the present utility model is halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket.
Claims (5)
1. a high density optical cable, comprise optical fiber (5), Loose tube (4), water blocking layer (3), aramid fiber layer (2) and oversheath (1), wherein optical fiber (5) is positioned at Loose tube (4) with the form of fibre bundle, water blocking layer (3), aramid fiber layer (2), oversheath (1) is set gradually outside Loose tube (4), it is characterized in that: described fibre bundle is multiply, per share fibre bundle has 12 optical fiber, these 12 optical fiber divide inside and outside two-layerly strandedly to form, internal layer 3, outer 9, internal layer direction of lay is contrary with outer direction of lay.
2. high density optical cable according to claim 1, is characterized in that the quantity of fibre bundle in Loose tube is that more than 3 bundles or 3 are restrainted, spiral is stranded in Loose tube.
3. high density optical cable according to claim 1, is characterized in that described oversheath (1) is for halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket.
4. high density optical cable according to claim 1, characterized by further comprising at least two strengthening cores (6), described strengthening core (6) is evenly arranged in oversheath (1), the center line of described strengthening core (6) and the centerline parallel of described Loose tube (4), and every distance between root strengthening core (6) with Loose tube (4) is all equal.
5. high density optical cable according to claim 4, is characterized in that described strengthening core (6) is phosphating steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173986.2U CN204613461U (en) | 2015-03-26 | 2015-03-26 | High density optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173986.2U CN204613461U (en) | 2015-03-26 | 2015-03-26 | High density optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613461U true CN204613461U (en) | 2015-09-02 |
Family
ID=53966008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520173986.2U Expired - Fee Related CN204613461U (en) | 2015-03-26 | 2015-03-26 | High density optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204613461U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108473089A (en) * | 2015-12-30 | 2018-08-31 | 全耐塑料公司 | Backlit Body Elements |
| WO2019128473A1 (en) * | 2017-12-27 | 2019-07-04 | 江苏亨通光电股份有限公司 | High-density pressure-resistant optical fiber bundle cable for use in datacenter |
| CN110140072A (en) * | 2016-11-17 | 2019-08-16 | 康宁研究与开发公司 | High density, low bend loss optical fiber tape cable |
| CN112630906A (en) * | 2020-12-22 | 2021-04-09 | 中天科技海缆股份有限公司 | Submarine optical cable and manufacturing method and splicing method thereof |
| CN119689666A (en) * | 2024-12-30 | 2025-03-25 | 长飞光纤光缆股份有限公司 | Preparation method of small-cable-diameter large-core-number optical cable and product thereof |
-
2015
- 2015-03-26 CN CN201520173986.2U patent/CN204613461U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108473089A (en) * | 2015-12-30 | 2018-08-31 | 全耐塑料公司 | Backlit Body Elements |
| CN110140072A (en) * | 2016-11-17 | 2019-08-16 | 康宁研究与开发公司 | High density, low bend loss optical fiber tape cable |
| WO2019128473A1 (en) * | 2017-12-27 | 2019-07-04 | 江苏亨通光电股份有限公司 | High-density pressure-resistant optical fiber bundle cable for use in datacenter |
| CN112630906A (en) * | 2020-12-22 | 2021-04-09 | 中天科技海缆股份有限公司 | Submarine optical cable and manufacturing method and splicing method thereof |
| CN119689666A (en) * | 2024-12-30 | 2025-03-25 | 长飞光纤光缆股份有限公司 | Preparation method of small-cable-diameter large-core-number optical cable and product thereof |
| CN119689666B (en) * | 2024-12-30 | 2026-03-20 | 长飞光纤光缆股份有限公司 | A method for manufacturing a small-diameter, high-core-count optical cable and its product. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160326 |