CN109031559A

CN109031559A - High-core-number high-density sleeve optical cable

Info

Publication number: CN109031559A
Application number: CN201810992599.XA
Authority: CN
Inventors: 李凌驿; 张慧; 卢星星; 熊壮
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Changfei Optical Fiber And Cable Co Ltd; Shantou High Tech Zone Aoxing Optical Communication Equipment Co ltd
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2018-12-18
Anticipated expiration: 2038-08-29
Also published as: CN109031559B

Abstract

The invention relates to a large-core-number high-density sleeve optical cable which comprises an outer sheath and a loose sleeve coated in the outer sheath, wherein an optical communication unit is laid in the loose sleeve. The optical cable has the characteristic of high optical fiber density, and the modularized optical fiber ribbon is adopted, so that the space in the sleeve can be fully utilized, and the optical fibers in the sleeve can be distributed in a full section. By adopting the polygonal loose sleeve, the internal space of the sleeve can be maximized under the same size, and the consumption of materials is reduced. The invention has wide application range, large access capacity and flexible use and laying, and can design different-shaped sleeves according to the requirement of actual core number.

Description

A kind of large core number high density set pipe optical cable

Technical field

The present invention relates to a kind of large core number high density to cover pipe optical cable, is suitable for the laying of house data center and uses, belongs to communication Optical cable technology field.

Background technique

With constantly universal and data center the continuous development of optical fiber transmission, high fiber count cable has obtained very big hair Exhibition.The especially large-scale use environment such as aggregate data center, large core number high density optical cable, which seems, to be even more important.Aggregate data Central apparatus is many kinds of, substantial amounts, and external interface is also very more, and this requires more transmission channels, and as room The optical cable of interior application, space be again lay have to consider an important factor for one of, therefore in a limited space in improve optical fiber Density is one of most important target.The existing inside cable there are many structure in the prior art, but the core number of optical fiber and Density is in relatively low level, such as core number and fills out oily optical fibre band optical cable for the beam tube within 288 cores, and maximum core number only exists Within the scope of normal Cable Core Number, and casing factice for filling, it is unfavorable for indoor clean construction, and large-scale data center interface For quantity up to thousands of or more, the small core number optical cable of tradition can no longer meet these requirements, therefore be directed to indoor comprehensive Data center, which provides large core number high density optical cable, just seems extremely important.

Summary of the invention

Technical problem to be solved by the present invention lies in view of the deficiency of the prior art, provide a kind of large core number High density covers pipe optical cable, which is arranged advantages of simple, and fine capacity is high, convenient using laying.

The present invention be solve the problems, such as it is set forth above used by technical solution are as follows:

The Loose tube for including oversheath and being coated in oversheath lays optical communication element in Loose tube, it is characterised in that institute The Loose tube stated is polygon Loose tube, the polygon be 6 while or when 6 more than polygon.

According to the above scheme, the polygon is symmetric polygonal or equilateral polygon.

According to the above scheme, the polygon is 6 ~ 10 side polygons.

According to the above scheme, the oversheath radial section is circle, and the Loose tube is around oversheath center laying 2 ~ 3 layers.

According to the above scheme, the optical communication element is one or more of optical fiber, fibre ribbon, fibre ribbon module.

According to the above scheme, the fibre ribbon module is spelled by fibre ribbon is folded, and the core number of every fibre ribbon is 8 ~ 24 cores, The cross section of the fibre ribbon module and the section phase configuration of polygon Loose tube.

According to the above scheme, the Loose tube lays 2 layers around oversheath center, and 3 Loose tubes are arranged in internal layer, and outer layer is set Set 9 Loose tubes.

According to the above scheme, the Loose tube is the shape Loose tube in shape or 8 of grade 6.

According to the above scheme, the Loose tube is made of polyether-ether-ketone (PEEK) or polytetrafluoroethylene (PTFE) (PTFE).

According to the above scheme, described every Loose tube maximum core number is 288 cores, and the maximum core number of entire optical cable is 3456 Core.

According to the above scheme, material water-proof material is equipped between the Loose tube, the cable core composed by Loose tube is coated with Water blocking layer, water blocking layer outer cladding non-metal reinforced layer, outermost layer is oversheath.

The beneficial effects of the present invention are: 1, a kind of optical cable with specific polygon Loose tube, given configuration are provided Casing may make the inner space of casing to maximize under identical size so that the arrangement between casing is even closer, improve Fine capacity and space utilization rate；2, modular optical fibre ribbons are used in polygonal cannulation, so that optical fiber can be according to the shape of casing Being customized is laid, and further improve optical fiber lays density, makes it possible large core number high density；3, specific Sleeve arrangement mode enables polygonal cannulation to form regular round cable core, avoids wasting space, realize common process Sheath stranding；4, structure setting advantages of simple lays material water-proof material between casing, lays reinforcing element outside cable core, ensure that light The normal block-water performance and tensile property of cable, reduce the outer diameter of optical cable, convenient for laying and use.Particularly suitable for indoor large number It lays and uses according to center.

Detailed description of the invention

Fig. 1 is the sectional structure chart of one embodiment of the invention.

Fig. 2 is polygonal cannulation and fibre ribbon function structure chart in Fig. 1.

Fig. 3 is another embodiment of the present invention structure chart.

Specific embodiment

The invention will be further described with reference to the accompanying drawings and examples and explanation.

First embodiment of the invention is as shown in Figure 1, 2, includes oversheath 6 and the Loose tube 1 that is coated in oversheath, The Loose tube is long 8 side shape Loose tubes, and the 8 side shape of length includes 2 long sides 1.2 and the two sides pair of setting symmetrical above and below The ratio of 2 short sides 1.3 of title setting, long side and short side is 1.3 ~ 1.7 1,2 long sides of ︰ and the bevel edge that 2 short sides pass through quadrangle 1.1 are connected, and constitute long 8 side shapes.The oversheath radial section is circle, and the Loose tube is applied around oversheath center If 2 layers, 3 Loose tubes are arranged in internal layer, 9 Loose tubes are arranged in outer layer, wherein 3 Loose tubes of internal layer are circumferentially evenly distributed with and long side It is laid along with radial parallel direction, the angle of each Loose tube of internal layer is 120 °, and 9 Loose tubes of outer layer include being arranged in internal layer 3 Loose tubes of each Loose tube end and set up 6 Loose tubes between each Loose tube of internal layer separately, is arranged in each Loose tube of internal layer 3 Loose tubes of end are adjacent (and connecing) by the short side 1.3 of its long side 1.2 and interior layer loose sleeve end, are arranged in internal layer Adjacent by bevel edge 1.1 among 2 Loose tubes between two Loose tubes, two sides pass through respective bevel edge 1.1 and internal layer pine set The long side 1.2 of pipe is adjacent, and its long side is radially laid.The Loose tube is made of polyether-ether-ketone (PEEK).It is covered in pine Optical communication element 2 is laid in pipe, the optical communication element is fibre ribbon module, and the fibre ribbon module is by fibre ribbon 2.1 it is folded spell, the core number of every fibre ribbon is 8 ~ 24 cores, and the cross section of the fibre ribbon module is 8 side shapes, with polygon The section phase configuration of Loose tube.Every Loose tube maximum core number is 288 cores, and the maximum core number of entire optical cable is 3456 cores.It is described Thixotropy fiber paste or dry type material water-proof material 2.2 are filled in Loose tube 1.Material water-proof material 3 is equipped between each Loose tube.It is covered in pine Cable core composed by managing is coated with water blocking layer 4, water blocking layer outer cladding non-metal reinforced layer 5, and outermost layer is oversheath 6.It is described Material water-proof material be water blocking yarn or waterstop, water blocking layer is also made of water blocking yarn or waterstop.The non-metal reinforced layer has Aramid yarn is constituted.

Second embodiment of the invention as shown in figure 3, it and upper one embodiment the difference is that described is more Side shape Loose tube is to wait hexagons casing, and the side length of each regular hexagon is equal, and the Loose tube is applied around oversheath center If 2 layers, 3 Loose tubes are arranged in internal layer, 9 Loose tubes are arranged in outer layer.Regular hexagon casing can further improve the space of optical cable Utilization rate reduces the gap between Loose tube.Modular fibre ribbon is equally used, the cross section of the fibre ribbon module is Equal hexagons can make the more fiber numbers of filling in casing, improve with the section phase configuration for waiting hexagons Loose tube The density of optical fiber.Other structures are identical as upper one embodiment.

Claims

It include oversheath and the Loose tube that is coated in oversheath 1. a kind of large core number high density covers pipe optical cable, in Loose tube Lay optical communication element, it is characterised in that the Loose tube is polygon Loose tube, the polygon be 6 while or when 6 with On polygon.
2. large core number high density according to claim 1 covers pipe optical cable, it is characterised in that the polygon is symmetrical polygon Shape or equilateral polygon.
3. large core number high density as described in claim 1 or 2 covers pipe optical cable, it is characterised in that the polygon is 6 ~ 10 sides Polygon.
4. large core number high density as described in claim 1 or 2 covers pipe optical cable, it is characterised in that the oversheath radial section For circle, the Loose tube lays 2 ~ 3 layers around oversheath center.
5. large core number high density as described in claim 1 or 2 covers pipe optical cable, it is characterised in that the optical communication element is light One or more of fibre, fibre ribbon, fibre ribbon module.
6. large core number high density as described in claim 5 covers pipe optical cable, it is characterised in that the fibre ribbon module is by optical fiber Band is folded to spell, and the core number of every fibre ribbon is 8 ~ 24 cores, cross section and the polygon Loose tube of the fibre ribbon module Section phase configuration.
7. large core number high density according to claim 6 covers pipe optical cable, it is characterised in that the Loose tube surrounds oversheath Center lays 2 layers, and 3 Loose tubes are arranged in internal layer, and 9 Loose tubes are arranged in outer layer.
8. large core number high density according to claim 7 covers pipe optical cable, it is characterised in that the Loose tube be equal 6 side shapes or 8 side shape Loose tubes.
9. covering pipe optical cable by large core number high density described in claim 6 or 7, it is characterised in that the every Loose tube maximum Core number is 288 cores, and the maximum core number of entire optical cable is 3456 cores.
10. large core number high density as described in claim 1 or 2 covers pipe optical cable, it is characterised in that set between the Loose tube There is material water-proof material, the cable core composed by Loose tube is coated with water blocking layer, water blocking layer outer cladding non-metal reinforced layer, outermost layer For oversheath.