CN205941994U - Optical cable of nai irradiation tied in a bundle - Google Patents
Optical cable of nai irradiation tied in a bundle Download PDFInfo
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- CN205941994U CN205941994U CN201620675845.5U CN201620675845U CN205941994U CN 205941994 U CN205941994 U CN 205941994U CN 201620675845 U CN201620675845 U CN 201620675845U CN 205941994 U CN205941994 U CN 205941994U
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Abstract
The utility model provides an optical cable of nai irradiation tied in a bundle, including the ETFE inner sheath, the cover is at the outside ETFE outer jacket of ETFE inner sheath, multifiber and the many LCP liquid crystal hard -pressed bale ropes that imbed between ETFE inner sheath and the ETFE outer jacket, optic fibre is the bare fibre, many bare fibres are arranged in ETFE inner sheath inner chamber, the diameter of each LCP liquid crystal hard -pressed bale rope is 0.6~1.0mm, preferred 0.7mm, the quantity of LCP liquid crystal hard -pressed bale rope is four, two a set of, it is two sets of altogether, this two sets of LCP liquid crystal hard -pressed bales rope symmetry sets up. The utility model discloses the high microthermal stability that relies on LCP improves the whole flex effect of optical cable, reduces outerly to the influence of little flexure stress of inside optic fibre under the extreme temperature condition, makes the utility model discloses great linear change can not take place for the optical cable yet under high low temperature state, improved the stability of optical transmission, and optic fibre directly adopts the bare fibre to save its outside plastic sheath to all bare fibres are all integrated in a ETFE inner sheath inner chamber, have effectively reduced the utility model discloses the volume of optical cable.
Description
Technical field：
This utility model is related to communications optical cable, is especially a kind of boundling optical cable of resistance to irradiation.
Background technology：
European and American developed countries in aeronautical field widely used high-rate information transmission technology, lift the comprehensive of information transmission equipment
Hop communication performance.During 13, developing rapidly of domestic spacecraft and its supporting communication equipment, information transfer cable is proposed
Higher requirement.Conventional communication cables mainly adopt single or the multicore optical cable of resistance to irradiation, and the technology of current comparative maturity is all
The single optical cable of resistance to irradiation (see Fig. 2), for the multicore optical cable of resistance to irradiation, mostly adopts spiral lay configuration, will many outsides equal
Tightly packaged fiber 10 spiral being enclosed with plastic sheath 11 twists together (see Fig. 3), then sets gradually a circle virtue outside it
Synthetic fibre 12 and a circle oversheath 13, the optical fiber 10 due to this structure is in helical buckling state, in particularly -55 DEG C of low temperature state
Under even lower low temperature environment, the freezing shrinkage internal stress of optical cable outer layer directly can produce larger micro-bend stress to optical fiber, makes
Fiber-optic transfer added losses increase, the stability of impact optical transport.In addition, mould because the outside of every optical fiber is all enclosed with
Material sheath 11, therefore, with the increase of core number, the volume of optical cable can increase clearly, and it is logical that this directly affects system installation
The overall volume of news panel.
Utility model content：
The technical problems to be solved in the utility model is to provide a kind of optical transport stability by force, under equal core number, volume phase
To the less boundling optical cable of resistance to irradiation.
Technical solution of the present utility model is to provide a kind of a kind of boundling optical cable of resistance to irradiation with following structure,
Including ETFE inner sheath, it is enclosed within ETFE outer jacket outside ETFE inner sheath, multifiber and many embedded ETFE inner sheaths
LCP liquid crystal hard-pressed bale rope and ETFE outer jacket between, the diameter of each LCP liquid crystal hard-pressed bale rope is more than 0.6mm, and optical fiber is naked light
Fibre, many bare fibres are located in ETFE inner sheath inner chamber.
The boundling optical cable of resistance to irradiation described in the utility model, the wherein quantity of LCP liquid crystal hard-pressed bale rope are four, two one
Group, totally two groups, this two groups of LCP liquid crystal hard-pressed bale ropes are symmetrical arranged.
The boundling optical cable of resistance to irradiation described in the utility model, wherein, the diameter of each LCP liquid crystal hard-pressed bale rope is 0.6～
1.0mm.
The boundling optical cable of resistance to irradiation described in the utility model, wherein, the diameter of each LCP liquid crystal hard-pressed bale rope is 0.7mm.
After above structure, compared with prior art, this utility model boundling optical cable of resistance to irradiation has advantages below：
Embedded many LCP liquid crystal hard-pressed bale ropes between ETFE inner sheath and ETFE outer jacket form composite construction, and this composite construction carries
The high stability in the large of the optical cable of resistance to irradiation；The stability relying on the high/low temperature of LCP is integrally stretched improving this utility model optical cable
Contracting effect, reduce outer layer in extreme temperature conditions the impact to the micro-bend stress of internal optical fiber so that this utility model optical cable
Larger linear change will not occur under high and low temperature state, light loss change under extreme conditions controls within 1dB/km,
Substantially increase the stability of this utility model optical transport.Additionally, optical fiber directly saves its outside plastic protective using bare fibre
Cover, and all bare fibres are all integrated in an ETFE inner sheath inner chamber, and then it is overall to substantially reduce this utility model optical cable
Physical dimension, effectively reduces the volume of this utility model optical cable, and then the overall volume of reduction system installation communication panel.
Two groups of LCP liquid crystal hard-pressed bale ropes are symmetrical arranged, and this structure is in effective quantity reducing LCP liquid crystal hard-pressed bale rope, saving
In the case of cost, can preferably reach the mesh preventing this utility model optical cable from linear change occurring under high and low temperature state
's.
The diameter of each LCP liquid crystal hard-pressed bale rope is 0.6～1.0mm so that this utility model optical cable is meeting serviceability
In the case of, effectively reduce the size of ETFE outer jacket.
The diameter of each LCP liquid crystal hard-pressed bale rope is a kind of preferred value that 0.7mm is this utility model optical cable.
Brief description：
Fig. 1 is the section cross section structure diagram of this utility model boundling optical cable of resistance to irradiation；
Fig. 2 is the section cross section structure diagram of the existing single optical cable of resistance to irradiation；
Fig. 3 is the section cross section structure diagram of the existing multicore optical cable of resistance to irradiation.
Specific embodiment：
With reference to the accompanying drawings and detailed description this utility model boundling optical cable of resistance to irradiation is described in further detail：
As shown in figure 1, in this embodiment, this utility model boundling optical cable of resistance to irradiation include ETFE inner sheath 2,
It is enclosed within ETFE outer jacket 1 outside ETFE inner sheath 2, multifiber 3 and many embedded ETFE inner sheaths 2 and ETFE outer jacket
LCP liquid crystal hard-pressed bale rope 4 between 1, the quantity of LCP liquid crystal hard-pressed bale rope 4 is specially four, two one group, totally two groups, this two groups
LCP liquid crystal hard-pressed bale rope 4 is symmetrical arranged, and optical fiber 3 is bare fibre, and bare fibre here refers to remove the entity of outer plastic jacket
Optical fiber, many bare fibres are located in ETFE inner sheath 2 inner chamber, and the diameter of each LCP liquid crystal hard-pressed bale rope 4 is more than 0.6mm.
Preferably, the diameter of each LCP liquid crystal hard-pressed bale rope 4 is 0.6～1.0mm, optimum is 0.7mm.
In this embodiment, described ETFE Chinese full name is：Ethylene-tetrafluoroethylene copolymer, is commonly called as：F-
, also known as liquid crystal polymer, these are commercially available material for 40, described LCP.Described optical fiber 3 can be 12,24,32 or
48 etc., and all using high-purity single-mode fiber, certain multimode fibre is also suitable.
Embedded many LCP liquid crystal hard-pressed bale ropes 4 between ETFE inner sheath 2 and ETFE outer jacket 1 form composite construction, this
Composite construction improves the stability in the large of the optical cable of resistance to irradiation；The stability of high/low temperature relying on LCP is improving this utility model
Optical cable integral telescopic effect, reduce outer layer in extreme temperature conditions the impact to the micro-bend stress of internal optical fiber so that this reality
With Novel optical cable, larger linear change will not occur under high and low temperature state, light loss change under extreme conditions controls
Within 1dB/km, substantially increase the stability of this utility model optical transport.Additionally, optical fiber is directly saved outside it using bare fibre
The plastic sheath in portion, and all bare fibres are all integrated in ETFE inner sheath 2 inner chamber, and then it is new to substantially reduce this practicality
Type optical cable overall structure size, effectively reduces the volume of this utility model optical cable, and then reduction system is installed the whole of communication panel
Body volume.
Embodiment described above is only preferred implementation of the present utility model to be described, not to this practicality
New scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of this utility model claims determination
In the range of.
Claims (4)
1. a kind of boundling optical cable of resistance to irradiation, including multifiber (3) it is characterised in that：Also include ETFE inner sheath (2), be enclosed within
Between the outside ETFE outer jacket (1) of ETFE inner sheath (2) and many embedded ETFE inner sheaths (2) and ETFE outer jacket (1)
LCP liquid crystal hard-pressed bale rope (4), the diameter of each LCP liquid crystal hard-pressed bale rope (4) is more than 0.6mm, and described optical fiber (3) is bare fibre,
Many bare fibres are located in ETFE inner sheath (2) inner chamber.
2. the boundling optical cable of resistance to irradiation according to claim 1 it is characterised in that：The quantity of described LCP liquid crystal hard-pressed bale rope (4)
For four, two one group, totally two groups, this two groups of LCP liquid crystal hard-pressed bale rope (4) are symmetrical arranged.
3. the boundling optical cable of resistance to irradiation according to claim 2 it is characterised in that：The diameter of each LCP liquid crystal hard-pressed bale rope (4) is equal
For 0.6～1.0mm.
4. the boundling optical cable of resistance to irradiation according to claim 3 it is characterised in that：The diameter of each LCP liquid crystal hard-pressed bale rope (4) is equal
For 0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675845.5U CN205941994U (en) | 2016-06-29 | 2016-06-29 | Optical cable of nai irradiation tied in a bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675845.5U CN205941994U (en) | 2016-06-29 | 2016-06-29 | Optical cable of nai irradiation tied in a bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941994U true CN205941994U (en) | 2017-02-08 |
Family
ID=57930082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620675845.5U Active CN205941994U (en) | 2016-06-29 | 2016-06-29 | Optical cable of nai irradiation tied in a bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205941994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060481A (en) * | 2018-09-13 | 2018-12-21 | 中国核动力研究设计院 | A kind of ceramic fibre beam sample irradiation test boundling pre-tightening apparatus and method |
-
2016
- 2016-06-29 CN CN201620675845.5U patent/CN205941994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060481A (en) * | 2018-09-13 | 2018-12-21 | 中国核动力研究设计院 | A kind of ceramic fibre beam sample irradiation test boundling pre-tightening apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |