CN201181350Y - Separated optical fiber framework type optical cable - Google Patents
Separated optical fiber framework type optical cable Download PDFInfo
- Publication number
- CN201181350Y CN201181350Y CNU2008200653192U CN200820065319U CN201181350Y CN 201181350 Y CN201181350 Y CN 201181350Y CN U2008200653192 U CNU2008200653192 U CN U2008200653192U CN 200820065319 U CN200820065319 U CN 200820065319U CN 201181350 Y CN201181350 Y CN 201181350Y
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- optical fiber
- cable
- slotted core
- skeleton
- optical cable
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Abstract
The utility model relates to a discrete optical fiber ribbon slotted core cable which comprises a cable ribbon slotted core and a central strengthening member, wherein water-blocking materials are coated outside the cable ribbon slotted core with the outermost layer thereof being an outer sheath; the cable is characterized in that the discrete optical fiber with the coating layer thereof being thickened is mounted in a slotted core of the cable ribbon slotted core. The cable has the following advantages: (1) the optical fiber is under the protection of the ribbon slotted core, so that the optical fiber in the slotted core is slightly affected by the external forces during the process of whatever the cable processing or using, therefore, the residual stress of the optical fiber is small, the transmission performance is stable and the attenuation is low; (2) the discrete optical fiber is adopted, and the coating layer of the optical fiber is thickened, thereby not only facilitating connection and adaption, but also improving the rigidity of the optical fiber and facilitating the poling operation; and (3) the cable is full-dry structured, thereby facilitating adaption and assembly of the cable. The cable is applicable to the optical fiber energy transfer field and other fields as a dry-type structured cable at the same time.
Description
Technical field
The utility model relates to a kind of discrete optical fiber slotted core cable.This optical cable is applicable to the optical fiber field of energy transfer, simultaneously, as a kind of dry fiber optic cables structure, also can be used for other field.
Background technology
Along with the exploitation of various different novel optical fibers, the range of application of optical fiber is constantly expanded to other field by the communications field.By the Optical Fiber Transmission energy is a new range of application.In the power transfer application, must use the optical fiber of big core diameter, the core diameter of optical fiber from 105 μ m to 1500 μ m.Compare with ordinary optic fibre, this type optical fiber core diameter is bigger, and covering is thinner, cladding thickness generally at 10 μ m to 30 μ m.And the covering that a variety of optical fiber are wherein arranged is not silica glass material, but constitutes by satisfying the plastic material that certain refractive index requires.These characteristics of energy transmission optical fibre have proposed new requirement to the design of optical cable.
The covering of energy transmission optical fibre is thinner, these characteristics cause the transmission performance counter stress of its optical fiber responsive more, in all technological processs of optical fiber cabling, small residual compressive stress all can cause the refractive index of fibre cladding to change, thereby the transmission performance that causes optical fiber significantly descends.These characteristics require optical fiber must guarantee to be subjected to as far as possible little unrelieved stress in the stranding process.
In addition, with regard to fibre junction, in actual engineering, no matter be to adopt the welding mode or by the flange ways of connecting, continuing of energy transmission optical fibre is very difficult.If adopt the welding mode, because the existence of plastics covering is arranged, covering sustains damage easily in the fusion process of optical fiber, thereby produces bigger splice loss, splice attenuation.If the employing flange connection, because large core fiber is non-target to the requirement in the ceramic insertion core hole of Optical fiber plug, when flange connected, the right alignment between the Optical fiber plug of two butt joints was difficult to be guaranteed; Simultaneously, the bonding curing process of the epoxy glue in the Optical fiber plug process between optical fiber and the ceramic insertion core causes the optic fibre plastics covering impaired easily.These factors obtain bigger Insertion Loss in the time of all can causing adopting flange to connect.The power transfer optical cable often needs to avoid the flange of optical fiber to connect and welding in application of practical project, only adopts needed Optical fiber plug at the two ends of optical cable, is used for the injection and the input of luminous energy.This just requires the power transfer optical cable of multicore can be directly changed into many single fiber cables by the optical cable switching device easily under the situation that does not have optical fiber tie point (welding point and flange).Assemble suitable Optical fiber plug then and be used for the injection and the output of luminous energy, avoid the welding of optical fiber to be connected with flange.
Existing tight sleeve layer strand optical cable is convenient at the two ends of optical cable Optical fiber plug is installed directly, can avoid fused fiber splice point to be connected with flange, but, first procedure at tight sleeve layer strand optical cable: in the process of tight tube fiber, tight sleeve layer produces compressive stress to optical fiber easily, this residual compressive stress can cause the refractive index of the covering of large core fiber to change, and then its transmission performance is descended.And when optical cable is applied to the field, when running on-40 ℃ temperature, the decline meeting of transmission performance further worsens.
Traditional loose jacket layer stranded cable can make ordinary optic fibre obtain desirable state in the stranding process by controlling surplus length for ordinary optic fibre, makes that the unrelieved stress of optical fiber is very small in the optical cable.But for energy transmission optical fibre, because the core diameter of optical fiber is bigger, the rigidity of optical fiber is bigger, and after the optical fiber core diameter surpassed certain limit, existing equipment was difficult to realize effective surplus long control.Simultaneously, the structure of this optical cable is a non-dry type, is unfavorable for converting many single fiber cables to by the optical cable adapter.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and proposes a kind of discrete optical fiber slotted core cable, and not only the unrelieved stress of process optical fiber is little for it, and is convenient to continuing and transferring of optical fiber.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: include optical cable skeleton and central reinforce member, the optical cable skeleton coats material water-proof material outward, outermost layer is an oversheath, and its difference is to be installed on the discrete optical fiber of fiber coating layer thickening in the skeleton grooves of optical cable skeleton.
Press such scheme, described discrete fibre core diameter is 105 μ m～1500 μ m, and fibre cladding thickness is 10 μ m～30 μ m; Described discrete fiber coating layer thickness is 150 μ m～500 μ m.
Press such scheme, between material water-proof material and oversheath, be provided with the metal band.
Press such scheme, described skeleton grooves is provided with 3～8, and is circumferentially uniform along the optical cable skeleton, and the lateral cross section of skeleton grooves is rectangular.
The beneficial effects of the utility model are: 1, optical fiber obtains the protection of skeleton, no matter is little to the influence of the optical fiber in the skeleton grooves in optical cable process or use external force, thereby the unrelieved stress of optical fiber is little, and transmission performance is stable, and attenuation is low; 2, adopt discrete optical fiber, and thickened the fiber coating layer, not only be convenient to continuing and transferring of optical fiber, and make that optical fiber rigidity is strengthened, the poling operation when being convenient to be converted to single core wire jumper at skeleton optical cable two ends; 3, optical cable is the dry type structure, is convenient to the switching assembling of optical cable.
Description of drawings
The radial structure sectional view of an embodiment of Fig. 1 the utility model.
Fig. 2 is the partial enlarged drawing of skeleton grooves part among Fig. 1.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Include the optical cable skeleton 4 of round section, optical cable frame center is coated with central reinforce member 1, circumferentially be evenly equipped with 6 skeleton grooves along the optical cable skeleton, the lateral cross section of skeleton grooves is rectangular, be installed on the discrete optical fiber of overlay thickening in the skeleton grooves, described discrete fibre core diameter is 105 μ m, and fibre cladding thickness is 10 μ m, and the fiber coating layer thickness is 180 μ m～240 μ m.The discrete optical fiber that is installed in the skeleton grooves can be provided with multilayer, and every layer is 2, and optical fiber leaves certain space in skeleton grooves, makes the optical fiber of installing leave surplus length, satisfies following relation between skeleton grooves width W, height H and the fibre diameter d (comprising overlay):
W＝2.5×d (1)
H＝n×d+0.5×d (2)
Long measure is mm in the following formula, and n is the optical fiber number of plies; The optical cable skeleton coats material water-proof material 5 and metal band 6 outward, and the metal band can be embossing steel band or aluminium strip, and the optical cable outermost layer coats oversheath 7, and described oversheath is the PE oversheath, also can adopt LSZH or protection against rodents, anti-ant oversheath.In addition, in the metal band, can be provided with and tear rope 3, be convenient to optical cable termination metal band oversheath open stripping.
The present embodiment cable configuration is the dry type structure, is convenient to by the optical cable adapter, under the situation that does not have the optical fiber tie point, is converted to single fiber cable by the multicore slotted core cable.By the Optical fiber plug that assembles on the single fiber cable of two ends, can realize connecting the injection side and the output terminal of luminous energy with a complete optical fiber.
Claims (6)
1, a kind of discrete optical fiber slotted core cable, include optical cable skeleton (4) and central reinforce member (1), the optical cable skeleton coats material water-proof material (5) outward, and outermost layer is oversheath (7), it is characterized in that being installed in the skeleton grooves of optical cable skeleton the discrete optical fiber (2) of overlay thickening.
2, by the described discrete optical fiber slotted core cable of claim 1, it is characterized in that described discrete fibre core diameter is 105 μ m～1500 μ m, fibre cladding thickness is 10 μ m～30 μ m, and the fiber coating layer thickness is 150 μ m～500 μ m.
3, by claim 1 or 2 described discrete optical fiber slotted core cables, it is characterized in that between material water-proof material and oversheath, being provided with metal band (6).
4, by claim 1 or 2 described discrete optical fiber slotted core cables, it is characterized in that described skeleton grooves is provided with 3～8, circumferentially uniform along the optical cable skeleton, the lateral cross section of skeleton grooves is rectangular.
5,, it is characterized in that satisfying between skeleton grooves width W, height H and the fibre diameter d following relation: W=2.5 * d by claim 1 or 2 described discrete optical fiber slotted core cables; H=n * d+0.5 * d.
6, by the described discrete optical fiber slotted core cable of claim 3, it is characterized in that described metal band is embossing steel band or aluminium strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200653192U CN201181350Y (en) | 2008-01-16 | 2008-01-16 | Separated optical fiber framework type optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200653192U CN201181350Y (en) | 2008-01-16 | 2008-01-16 | Separated optical fiber framework type optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181350Y true CN201181350Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200653192U Expired - Lifetime CN201181350Y (en) | 2008-01-16 | 2008-01-16 | Separated optical fiber framework type optical cable |
Country Status (1)
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| CN (1) | CN201181350Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8660392B2 (en) | 2009-07-03 | 2014-02-25 | Huawei Technologies Co., Ltd. | Optical cable and optical cable system |
| CN104849824A (en) * | 2015-06-15 | 2015-08-19 | 长飞光纤光缆股份有限公司 | Full-dry nonmetal self-supporting skeleton-type optical cable |
| CN105759383A (en) * | 2016-04-15 | 2016-07-13 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton slot optical cable and manufacturing method thereof |
| WO2018107928A1 (en) * | 2016-12-16 | 2018-06-21 | 长飞光纤光缆股份有限公司 | Optical fiber cable for vehicles |
| CN109085684A (en) * | 2018-10-11 | 2018-12-25 | 宜昌睿传光电技术有限公司 | A kind of skeleton optical fiber and grating sensing temperature optical cable |
| CN114185140A (en) * | 2022-02-15 | 2022-03-15 | 长飞光纤光缆股份有限公司 | Small-bending-radius framework groove type optical cable and preparation method thereof |
-
2008
- 2008-01-16 CN CNU2008200653192U patent/CN201181350Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8660392B2 (en) | 2009-07-03 | 2014-02-25 | Huawei Technologies Co., Ltd. | Optical cable and optical cable system |
| CN104849824A (en) * | 2015-06-15 | 2015-08-19 | 长飞光纤光缆股份有限公司 | Full-dry nonmetal self-supporting skeleton-type optical cable |
| WO2016202148A1 (en) * | 2015-06-15 | 2016-12-22 | 长飞光纤光缆股份有限公司 | Optical cable having full-dry type non-metal self-supporting skeleton |
| CN105759383A (en) * | 2016-04-15 | 2016-07-13 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton slot optical cable and manufacturing method thereof |
| WO2017177876A1 (en) * | 2016-04-15 | 2017-10-19 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton-slot-type optical cable and manufacturing method therefor |
| WO2018107928A1 (en) * | 2016-12-16 | 2018-06-21 | 长飞光纤光缆股份有限公司 | Optical fiber cable for vehicles |
| CN109085684A (en) * | 2018-10-11 | 2018-12-25 | 宜昌睿传光电技术有限公司 | A kind of skeleton optical fiber and grating sensing temperature optical cable |
| CN114185140A (en) * | 2022-02-15 | 2022-03-15 | 长飞光纤光缆股份有限公司 | Small-bending-radius framework groove type optical cable and preparation method thereof |
| CN114185140B (en) * | 2022-02-15 | 2022-06-10 | 长飞光纤光缆股份有限公司 | Small-bending-radius framework groove type optical cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGTZE OPTICAL FIBRE AND CABLE CO., LTD Free format text: FORMER NAME: CHANGFEI FIBRE-OPTICAL + OPTICAL CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee after: Yangtze Optical Fibre and Cable Co., Ltd Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee before: Changfei Fibre-Optical & Optical Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |