CN209881085U - Flexible extensible submarine cable amplifier structure - Google Patents
Flexible extensible submarine cable amplifier structure Download PDFInfo
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- CN209881085U CN209881085U CN201921053712.4U CN201921053712U CN209881085U CN 209881085 U CN209881085 U CN 209881085U CN 201921053712 U CN201921053712 U CN 201921053712U CN 209881085 U CN209881085 U CN 209881085U
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- 239000000872 buffer Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a flexible extensible submarine cable amplifier structure, including submarine cable, buffer, amplifier unit universal structure module and universal joint all correspond and are provided with a plurality ofly, amplifier unit universal structure module and universal joint are interval distribution in proper order and connect to correspond through buffer and submarine cable respectively on the amplifier unit universal structure module at both ends and be connected. The utility model discloses stable in structure, the leakproofness is good, and cable type suitability is good, and crooked movable, the transportation and the laying of the submarine cable amplifier of being convenient for have also avoided simultaneously if the influence that the submarine cable atress increases is caused because of rigid part oversize to conventional amplifier.
Description
Technical Field
The utility model relates to a flexible extensible submarine cable amplifier structure.
Background
In the big data era, more than 90% of international transoceanic communication services are borne by submarine cables, and the submarine cables become main carriers of information transmission. In the last five years, TeleGeograpy data show that the annual growth rate of the global Internet bandwidth is kept about 30%, 196Tbps is increased from 2013 to 2017, 295Tbps is reached as 8 months from 2018, and the situation of accelerated growth is continuously presented. Meanwhile, with the rapid development of the 5G technology, cloud computing, the Internet of things, big data, mobile internet and other ICT industries, the demand of various countries in the world for the data capacity of the Internet is continuously increased. In the process of moving towards better full connection, the role played by the submarine cable is more and more important, and with the continuous increase of the data demand, the demand of the multi-core submarine cable is increased day by day.
Due to the nature of the fiber, signal attenuation in the fiber channel is inevitable. For a short span communication system, the attenuation of the signal is not enough to cause distortion of the signal, etc., and the influence on the line transmission is small. However, for large spans, particularly transoceanic systems, the length of the sea cable is long, even beyond the tens of thousands of kilometers, and the attenuation of the signal is sufficient to affect the data information to be transmitted. Therefore, the signal amplifier is not negligible for the large span submarine cable communication system.
In the structural design of the amplifier, two main points are considered: 1. the external dimensions of the amplifier; 2. heat dissipation of the amplifier.
For the outer structural dimensions, there are mainly radial and axial dimensions. The radial dimension of the submarine cable is mainly limited by construction equipment of a submarine cable construction ship and the dimension of a route in the operation process of the submarine cable, so that the submarine cable cannot be enlarged in the radial dimension; in the axial dimension, the length of the rigid part of the amplifier amplifies the stress factor of the submarine cable when passing through the hub, so the axial dimension of the amplifier cannot be increased when the stress of the submarine cable is limited.
For the heat dissipation of the amplifier, the laser inside the amplifier and each electrical unit module dissipate heat seriously, and the laser is sensitive to heat and is easy to cause instability of optical wavelength, so the larger the size of the amplifier is, the better the heat dissipation is.
Therefore, conventional signal amplifiers are limited in the size of the structural components and the internal heat dissipation, which limits the number of pairs of optical fibers that can be amplified.
Currently, the conventional 4-core (2-fiber pair) amplifier size is approximately 160mm x 300mm (without gimbals and buffers), while for a 12-core (6-fiber pair) amplifier size is approximately 220mm x 1000mm, while for a 16-core (8-fiber pair) amplifier size, the size becomes more bulky, approaching 260mm x 1200mm, but at such a large size, heat dissipation still appears to be negligible.
For extra-large core number submarine cables such as 32 cores (16 fiber pairs) and even 48 cores (24 fiber pairs), the design development of amplifiers is limited to the size of structural parts and internal heat dissipation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stable in structure, the leakproofness is good, and cable type suitability is good, and crooked movable, the transportation and the laying of the submarine cable amplifier of being convenient for have also avoided simultaneously if the flexible extensible submarine cable amplifier structure of the influence that the submarine cable atress increases is caused because of rigid part oversize to conventional amplifier.
The technical scheme of the utility model be, provide a flexible extensible submarine cable amplifier structure, including submarine cable, buffer, amplifier unit universal architecture module and universal joint, its characterized in that: the amplifier unit universal structure module and the universal joint are correspondingly provided with a plurality of modules, the amplifier unit universal structure module and the universal joint are sequentially connected in an interval distribution manner, and submarine cables at two end parts of a submarine cable amplifier structure are correspondingly connected with the amplifier unit universal structure module through buffers.
In a preferred embodiment of the present invention, the end covers are respectively disposed at two ends of the pressure-bearing cylinder of the amplifier unit universal structural module, and the end covers are positioned by the set screws between the pressure-bearing cylinder and the end covers and are locked and positioned by the end cover clamp rings.
In a preferred embodiment of the present invention, the outer ring of the end cap is sealed with the housing of the amplifier unit universal structural module by two O-ring seals.
In a preferred embodiment of the present invention, the universal joint is a cross universal joint, and includes a universal joint unit having two ends respectively corresponding to the pressure-bearing cylinder and a circular ring connected by a flat head set screw in the universal joint unit.
In a preferred embodiment of the present invention, a tail cable is correspondingly disposed between the gimbal units.
In a preferred embodiment of the present invention, both ends of the tail cable are respectively connected to the end covers on the pressure-bearing cylinder.
In a preferred embodiment of the present invention, the tail cable is disposed in a spiral structure.
In a preferred embodiment of the present invention, the end cap has two ends that are watertight with the tail cable or the submarine cable through the heat shrink tube, a taper seal ring is installed between the inner ring of the end cap and the submarine cable or the tail cable, and the taper seal ring is locked and positioned by the hollow screw, so as to realize the secondary watertight protection between the end cap and the submarine cable or the tail cable.
For a flexible extensible extra large cable amplifier structure, the utility model discloses stable in structure, the leakproofness is good, and cable type suitability is good, and crooked movable, the transportation and the laying of the extra large cable amplifier of being convenient for have also avoided simultaneously if the influence that the extra large cable atress increases is caused because of the rigidity part oversize of conventional amplifier.
Drawings
Fig. 1 is a schematic diagram of a preferred embodiment of a flexible and expandable submarine cable amplifier according to the present invention;
FIG. 2 is a partial cross-sectional view of a connection of the buffer and amplifier unit generic structure module of FIG. 1;
fig. 3 is a partial cross-sectional view of the amplifier unit universal structural module of fig. 1 in connection with a gimbal.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make more clear and definite definitions of the scope of the present invention.
For a flexible extensible submarine cable amplifier structure, combine fig. 2-fig. 3 as fig. 1 and show, including submarine cable 1, buffer 2, amplifier unit universal structure module 3 and universal joint 4, mechanical connection between each amplifier unit universal structure module 3 of intermediate part all adopts universal joint 4 to realize, can correspond according to system design needs and set up a plurality ofly, through continuing to connect amplifier unit universal structure module 3 and universal joint 4, can satisfy infinitely many and relay the amplification to fine, realize the unlimited cascade and the extension of fine right, submarine cable 1 at submarine cable amplifier structure both ends corresponds through buffer 2 and amplifier unit universal structure module 3 and is connected, the purpose of buffer is the bending of buffering submarine cable, prevent the excessive bending of submarine cable.
The universal joint 4 is a cross universal joint and comprises a universal joint unit 41 with two ends respectively corresponding to the pressure-bearing cylinder 5 and a circular ring 42 connected with the universal joint unit 41 through flat head set screws, so that bending movement among the amplifier unit universal structure modules 3 is ensured, the submarine cable amplifier is convenient to transport and lay, and the influence of the stress increase of the submarine cable caused by the overlarge size of a rigid part of the conventional amplifier is avoided.
Correspond between the universal joint unit 41 and be provided with the tail cable 6, the both ends of tail cable 6 correspond with end cover 7 on the pressure-bearing cylinder 5 respectively and are connected, the photoelectric transmission of each amplifier unit universal structure module 3 all adopts tail cable 6 to realize connecting, tail cable 6 is the heliciform structure setting, guarantee universal joint 4 when crooked, tail cable 6 also can freely bend, heliciform structure simultaneously, also make tail cable 6 have sufficient extension surplus when crooked, the atress of upper and lower insulating layer is too big when avoiding tail cable 6 to bend, the atress between tail cable 6 and the end cover 7 has also been reduced.
The end covers 7 arranged at two ends of the pressure bearing cylinder 5 of the amplifier unit general structure module 3 are positioned through set screws between the pressure bearing cylinder 5 and the end covers 7 and are locked and positioned through an end cover compression ring 8, two ends of each end cover 7 realize watertight protection with the tail cable 6 or the submarine cable 1 through a heat shrink tube 12, the inner ring of each end cover 7 realizes secondary watertight protection with the submarine cable 1 or the tail cable 6 through a conical sealing ring 9, the conical sealing ring 9 is connected with the end cover 7 through a special hollow screw to be locked and positioned to realize sealing, the outer ring of each end cover 7 corresponds to the shell 11 of the amplifier unit general structure module 3 through two O-shaped sealing rings 10 to be sealed, the inner apertures of the end covers 7 and the conical sealing rings 9 are related to the cable shape size of the submarine cable 1, and therefore the adaptation with different submarine cables 1 and tail cables 6 is.
A mature single fiber pair or double fiber pair amplification module is arranged in the amplifier general structure unit module 3, so that signal amplification is achieved, meanwhile, the external size of the structure unit can be made small, the stress of the laid submarine cable 1 is reduced, the multi-core submarine cable 1 enters the amplifier general structure module 3 through the buffer 2, redundant optical fibers in the submarine cable 1 pass through the amplifier general structure unit module 3, amplification of partial optical fibers is achieved, the residual optical fibers in the submarine cable pass through the tail cable 6 arranged in the universal joint 4, the submarine cable enters the next stage of amplifier general structure unit module 3, then signal amplification of the next single fiber pair or double fiber pair is conducted, the submarine cable enters the tail cable 6, then enters the amplifier general structure module 3, the process is repeated until all the cores are amplified, and then the submarine cable is connected with the next stage of submarine cable 1.
For a flexible extensible extra large cable amplifier structure, the utility model discloses stable in structure, the leakproofness is good, and cable type suitability is good, and crooked movable, the transportation and the laying of the extra large cable amplifier of being convenient for have also avoided simultaneously if the influence that the extra large cable atress increases is caused because of the rigidity part oversize of conventional amplifier.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (8)
1. A flexible and expandable submarine cable amplifier structure comprises a submarine cable, a buffer, an amplifier unit general structure module and a universal joint, and is characterized in that: the amplifier unit universal structure module and the universal joint are correspondingly provided with a plurality of modules, the amplifier unit universal structure module and the universal joint are sequentially connected in an interval distribution manner, and submarine cables at two end parts of a submarine cable amplifier structure are correspondingly connected with the amplifier unit universal structure module through buffers.
2. The flexible and expandable submarine cable amplifier structure according to claim 1, wherein: the amplifier unit universal structure module is characterized in that end covers are respectively arranged at two ends of a pressure bearing cylinder of the amplifier unit universal structure module, and the end covers are positioned through set screws between the pressure bearing cylinder and the end covers and are locked and positioned through end cover compression rings.
3. The flexible and expandable submarine cable amplifier structure according to claim 2, wherein: and the outer ring of the end cover is correspondingly sealed with the shell of the amplifier unit general structure module through two O-shaped sealing rings.
4. The flexible and expandable submarine cable amplifier structure according to claim 1, wherein: the universal joint is a cross universal joint and comprises a universal joint unit and a circular ring, wherein two ends of the universal joint unit are respectively arranged corresponding to the pressure-bearing cylinder, and the circular ring is connected in the universal joint unit through a flat head set screw.
5. The flexible and expandable submarine cable amplifier structure according to claim 4, wherein: and tail cables are correspondingly arranged between the universal joint units.
6. The flexible and expandable submarine cable amplifier structure according to claim 5, wherein: and two ends of the tail cable are respectively and correspondingly connected with the end covers on the pressure-bearing cylinder.
7. The flexible and expandable submarine cable amplifier structure according to claim 5, wherein: the tail cable is arranged in a spiral structure.
8. The flexible and expandable submarine cable amplifier structure according to claim 2, wherein: the two ends of the end cover realize watertight protection with the tail cable or the submarine cable through the heat shrinkable tube, a conical sealing ring is installed between the inner ring of the end cover and the submarine cable or the tail cable, and the conical sealing ring is locked and positioned through a hollow screw, so that secondary watertight protection between the end cover and the submarine cable or the tail cable is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053712.4U CN209881085U (en) | 2019-07-08 | 2019-07-08 | Flexible extensible submarine cable amplifier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053712.4U CN209881085U (en) | 2019-07-08 | 2019-07-08 | Flexible extensible submarine cable amplifier structure |
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| Publication Number | Publication Date |
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| CN209881085U true CN209881085U (en) | 2019-12-31 |
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| CN201921053712.4U Active CN209881085U (en) | 2019-07-08 | 2019-07-08 | Flexible extensible submarine cable amplifier structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021003804A1 (en) * | 2019-07-08 | 2021-01-14 | 江苏亨通海洋光网系统有限公司 | Flexible and expandable submarine cable amplifier structure |
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2019
- 2019-07-08 CN CN201921053712.4U patent/CN209881085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021003804A1 (en) * | 2019-07-08 | 2021-01-14 | 江苏亨通海洋光网系统有限公司 | Flexible and expandable submarine cable amplifier structure |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Jiangsu Hengtong Huahai Technology Co.,Ltd. Country or region after: China Address before: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU HENGTONG MARINE CABLE SYSTEMS Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |