CN105372765B - The joints of optical fibre - Google Patents
The joints of optical fibre Download PDFInfo
- Publication number
- CN105372765B CN105372765B CN201510838158.0A CN201510838158A CN105372765B CN 105372765 B CN105372765 B CN 105372765B CN 201510838158 A CN201510838158 A CN 201510838158A CN 105372765 B CN105372765 B CN 105372765B
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- CN
- China
- Prior art keywords
- support set
- shell
- pressure welding
- endoporus
- joints
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to the joints of optical fibre, the joints of optical fibre include fore shell, rear shell and the tail sheath for being arranged at rear shell tail end, the support set that axis extends along the longitudinal direction is provided with the endoporus of rear shell, support set is fixed in the fore shell or rear shell, and the pressure welding case for clamping corresponding cable skin and reinforcing fibre to the support set press fit is arranged with the periphery of support set in the endoporus of rear shell.The present invention solves the problems, such as to cause tail sheath to be unable to angle bending because support set is arranged at rear shell tail end in the prior art.
Description
Technical field
The present invention relates to a kind of joints of optical fibre.
Background technology
In a communications system, the LC types joints of optical fibre are to apply a kind of most common joints of optical fibre, and it is applied not only to light
The contact connector of fine circuit, and be used for and optical transceiver module（Optical module）Connection, be that optical module is most widely used right
Outer physical interface, such as SFP modules.With the increasingly preciousness of the development of the communication technology, and computer room space, the development of technology
Drive the volume of communication equipment increasingly to optimize, for the external interface of equipment, also optimize step by step therewith, optical fiber connects
Connect device axial length and wiring space, radial section packing density in terms of turn into the direction of optimization, connect for LC types optical fiber
Connect for device, the packing density optimization space at its radial direction interface is smaller, is mainly at present the excellent of plug length around its optimization
Change.
The existing joints of optical fibre " LC joints of optical fibre " as disclosed in Chinese patent CN203365735U, including with before
The connector shell of shell, rear shell, guiding movement is equipped with lock pin part along the longitudinal direction in connector shell, and lock pin part includes
Ceramic insertion core and top located at spring between ceramic insertion core and rear shell, the tail end of rear shell be provided with for pressed fiber crust and
The metal tube of reinforcing fibre is support set, and the periphery of support set is arranged with stainless steel pressure ring i.e. pressure welding case, and the length of pressure welding case is big
In the length of support set, the periphery of pressure welding case is arranged with tail sheath.The crust of optical cable and reinforcing fibre are arranged at support during use
Between set and pressure welding case, pressure welding case deformation is set to compress crust and reinforcing fibre by compression joint technique, so as to ensure that optical fiber connects
The tensile capacity of device, because the length of pressure welding case will be longer than the length of support set, so the afterbody of pressure welding case can also be pressed directly
Tight optical cable, so as to increase the frictional force between rear shell and optical cable.By using crimping structure, the total of the LC joints of optical fibre is reduced
Body length, but because pressure welding case is located at the inside of tail sheath so that the deformation angle of tail sheath is very limited, and tail sheath loses
Its actual meaning, optical cable can not realize that wide-angle is bent, it is impossible to need what wide-angle was bent suitable for tail sheath, optical cable
Used in working environment；In addition the afterbody of pressure welding case directly crimps to optical cable, due to lacking corresponding supporting construction, the party
Formula can not compress to optical cable, if firmly excessive, can cause the fracture of optical cable core.
The content of the invention
It is an object of the invention to provide a kind of joints of optical fibre, to solve in the prior art because support set is arranged at rear shell
Tail end and cause tail sheath be unable to angle bending the problem of.
In order to solve the above problems, the technical scheme of the joints of optical fibre is in the present invention：
The joints of optical fibre, including fore shell, rear shell and the tail sheath for being arranged at rear shell tail end, axle is provided with the endoporus of rear shell
The support set that line extends along the longitudinal direction, support set are fixed in the fore shell or rear shell, in support set in the endoporus of rear shell
Periphery is arranged with the pressure welding case for clamping corresponding cable skin and reinforcing fibre to the support set press fit.
The lock pin part with spring and lock pin is provided with the endoporus of fore shell, the tail end top of spring is located at the support set
On.
The lock pin flange of square structure is provided with lock pin, the endoporus of fore shell has is oriented to what is be slidably matched with lock pin flange
Square hole section.
The front end of support set is fixed on the tail end of the fore shell by fixed structure, and fixed structure includes being arranged at intervals up and down
Upper and lower pin hole, upper and lower pin hole in left-right direction in fore shell and support set, upper and lower pin hole in left-right direction
It is fitted with shop bolt.
The upper and lower pin hole on support set is extended partially on the outer peripheral face of support set.
The pressure welding case is multidiameter structure, and pressure welding case, which includes the front and rear big footpath section set and path section, support set, to be included
The front support set and rear support set of front and rear setting, the big footpath section of pressure welding case are sheathed on the rear end of the front support set, rear support set
Front end positioning and plug-in mounting in the endoporus rear end of the support set, the interior of the path section of the pressure welding case is stretched into the rear end of rear support set
Kong Zhong, it is provided with the cable skin passed through for the cable skin between rear support set and the path section of pressure welding case and crimps gap, front support set
The fiber passed through for the reinforcing fibre is provided between the big footpath section of pressure welding case and crimps gap.
The front end of tail sheath, which is turned up, has sheath to keep off edge, in the endoporus of rear shell varus have for sheath gear along block coordinate with
Limit the rear shell gear edge of tail sheath moving limit backwards, tail sheath being encased in the rear shell from front to back, sheath gear edge
Front end is crimped the cascaded surface block of set.
Beneficial effects of the present invention are：The support set and pressure welding case crimped in the present invention to cable skin and reinforcing fibre is equal
In endoporus in rear shell, and tail sheath is then placed in the tail end of rear shell, and support set will not take whole optical fiber with pressure welding case and connect
The axial length of device, while ensureing joints of optical fibre short length, the normal bending of tail sheath will not be hindered again, can be applicable
Used in the working environment that tail sheath, optical cable need wide-angle to bend.
Further, the tail end top of spring is located on support set, and support set itself forms spring base, is not required to set again other
The structure for being used to the structure of spring block, be advantageous to simplify the joints of optical fibre.
Further, support set is fixed by pin, prevents that support set causes to damage to fore shell in assembling process
Evil, while easy disassembly, fore shell and support set can also be fabricated separately, and simplify the manufacture craft of the joints of optical fibre.
Further, the cable skin that the cable skin of optical cable is covered between the path section of pressure welding case through rear support crimps gap and passed through,
Then the path section of pressure welding case is crimped, ensures the fixation to cable skin；The premenstrual support set of reinforcing fibre of optical cable is with crimping
Fiber crimping gap between the big footpath section of set is passed through, and then the big footpath section of pressure welding case is crimped, ensured to reinforcing fibre
Fixation, cable skin with it is spacing separate it is fixed, it is ensured that pressure welding case overall dimensions will not be excessive, does not interfere with the radial direction of product
Size.
Brief description of the drawings
Fig. 1 is the use state figure of one embodiment of the present of invention；
Fig. 2 is the exploded view of the joints of optical fibre in Fig. 1；
Fig. 3 is the structural representation when support of Fig. 2 optical cables is cased with showing and lacks tail sheath and rear shell；
Fig. 4 is the cooperation schematic diagram of lock pin part in Fig. 1, support set, pressure welding case and tail sheath；
Fig. 5 is structural representation when lacking tail sheath in Fig. 4.
Embodiment
The implementation of the joints of optical fibre is for example shown in Fig. 1 ~ 5：Including fore shell 1, rear shell 3 and the tail sheath for being arranged at rear shell tail end
4, wherein using fixture block of the prior art, notch 2, fixture block, notch include the assembly relation between fore shell, rear shell
The neck 12 being arranged in rear shell and the fixture block 5 being arranged on fore shell.Axis is provided with the endoporus of rear shell along the longitudinal direction to prolong
The support set stretched, support set include front support set and rear support set, front support set 15 front end be fixed on by fixed structure before
The tail end of shell 1, fixed structure include upper and lower spaced upper and lower pin hole, and upper and lower pin hole is in left-right direction across preceding
Shell and front support set, that is to say, that before upper pin hole includes the upper pin hole Portion 9-1 being arranged on fore shell and is arranged at
Upper pin hole support set part 9-2 on support set, lower pin hole include the lower pin hole Portion 6-1 being arranged on fore shell
With the lower pin hole support set part 6-2 for being arranged at front support and putting, it is fitted with left-right direction respectively in upper and lower pin hole
Shop bolt 8 and lower shop bolt 7, fixture block, the fixture block of notch have assembled between upper and lower pin hole in forward and backward shell
Cheng Hou, rear shell, which can limit shop bolt, prevents shop bolt in left-right direction by deviating from corresponding pin hole, what front support was put
Upper and lower pin hole is extended partially on the outer peripheral face of front support set, and feather key and feather key are set between front support set and fore shell
Groove, to ensure that the pin hole that fore shell, front support are put can be aligned.It is provided with the endoporus of fore shell with spring 18 and lock pin 16
Lock pin part, the tail end top of spring is located at front support and puts, and the lock pin flange 17 of square structure is provided with lock pin, fore shell
Endoporus has is oriented to the square hole section being slidably matched with lock pin flange 17.It is arranged with the endoporus of rear shell in the periphery of front support set
For covering press fit to front support to clamp the pressure welding case 10 of corresponding cable skin and reinforcing fibre, pressure welding case is rank in the present embodiment
Terraced axle construction, pressure welding case include front and rear big the footpath section 14 and path section 13 set, and the big footpath section of pressure welding case is sheathed on front support set
Rear end, rear support set 20 front end positioning and plug-in mounting in the endoporus rear end that front support cover, rear support put be provided be used for it is preceding
Support set rear end block coordinates keeps off edge to limit the support set of rear support set insertion front support set depth, and the rear end of rear support set is stretched
In the endoporus of path section 13 for entering pressure welding case, the cable skin being provided between rear support set and the path section of pressure welding case for optical cable passes through
Cable skin line ball gap, front support set the big footpath section of pressure welding case between is provided with the fiber pressure passed through for the reinforcing fibre of optical cable
Line gap.The front end of tail sheath 4, which is turned up, has sheath to keep off edge, in the endoporus of rear shell varus have for sheath gear along block coordinate with
The rear shell gear of tail sheath moving limit backwards is limited along 11, tail sheath being encased in the rear shell from front to back, sheath gear edge
Front end be crimped the cascaded surface block of set.
When in use, passed through in the endoporus of optical cable footpath rear support set, front support set, the cable skin of optical cable is crimped on rear support
Between set and pressure welding case, the reinforcing fibre of optical cable（Such as aramid fiber）It is crimped between front support set and pressure welding case,
Reinforcing fibre and cable skin are crimped respectively, and so crimping gap can be relatively a little bit smaller, and the radial dimension of pressure welding case will not be excessive, makes
Obtaining pressure welding case can be arranged in the rear shell of original product.In other embodiments of the invention：Front support set can also be fixed on
In rear shell；Certain front support set can also be fixed on fore shell by other fixed structures, such as front support set and fore shell mistake
It is full of fixation, or front support set is wholely set with fore shell；The tail end of spring can not also be withstood on support set, now needed rear
The structure for setting ammunition feed spring tail end top to set on shell；Rear support set can not also be set, and now pressure welding case can be the gauge structure such as one,
Cable skin and reinforcing fibre crimp in same position to be fixed；Tail sheath can also be fixed on rear shell rear end by nut；Front support set
On the cross sectional shape of pin hole can also be circular or other shapes.
Claims (6)
1. the joints of optical fibre, including fore shell, rear shell and the tail sheath for being arranged at rear shell tail end, it is characterised in that：The endoporus of rear shell
In be provided with the support set that axis extends along the longitudinal direction, support set is fixed in the fore shell or rear shell, in the endoporus of rear shell
The pressure welding case for clamping corresponding cable skin and reinforcing fibre to the support set press fit is arranged with the periphery of support set,
The pressure welding case is multidiameter structure, and pressure welding case includes front and rear big the footpath section and path section set, and support set includes front and rear set
Front support set and rear support set, the big footpath section of pressure welding case is sheathed on the rear end of the front support set, and the front end of rear support set is determined
Position is plugged in the endoporus rear end of the front support set, and rear support, which is put, to be provided with for coordinating with front support set rear end block to limit
The support set gear edge of rear support set insertion front support set depth processed, the path section of the pressure welding case is stretched into the rear end of rear support set
The cable skin passed through for the cable skin, which is provided with, in endoporus, between rear support set and the path section of pressure welding case crimps gap, front support
The fiber passed through for the reinforcing fibre is provided between set and the big footpath section of pressure welding case and crimps gap.
2. the joints of optical fibre according to claim 1, it is characterised in that：It is provided with spring and inserts in the endoporus of fore shell
The lock pin part of core, the tail end top of spring are located on the support set.
3. the joints of optical fibre according to claim 2, it is characterised in that：The lock pin method of square structure is provided with lock pin
Orchid, the endoporus of fore shell has is oriented to the square hole section being slidably matched with lock pin flange.
4. the joints of optical fibre according to claim 1, it is characterised in that：The front end of support set is fixed on by fixed structure
The tail end of the fore shell, fixed structure include upper and lower spaced upper and lower pin hole, and upper and lower pin hole is in left-right direction
Across fore shell and support set, shop bolt is fitted with left-right direction in upper and lower pin hole.
5. the joints of optical fibre according to claim 4, it is characterised in that：The upper and lower pin bore portion on support set
Extend on the outer peripheral face of support set.
6. the joints of optical fibre according to claim 1, it is characterised in that：The front end of tail sheath, which is turned up, has sheath to keep off edge, after
In the endoporus of shell varus have for sheath gear along block coordinate with limit tail sheath backwards moving limit rear shell keep off edge, tail shield
Set being encased in the rear shell from front to back, the front end on sheath gear edge are crimped the cascaded surface block of set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510838158.0A CN105372765B (en) | 2015-07-31 | 2015-11-26 | The joints of optical fibre |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104619710 | 2015-07-31 | ||
| CN201510461971 | 2015-07-31 | ||
| CN201510838158.0A CN105372765B (en) | 2015-07-31 | 2015-11-26 | The joints of optical fibre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105372765A CN105372765A (en) | 2016-03-02 |
| CN105372765B true CN105372765B (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510838158.0A Active CN105372765B (en) | 2015-07-31 | 2015-11-26 | The joints of optical fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105372765B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425941B (en) * | 2017-08-31 | 2024-04-05 | 中航光电科技股份有限公司 | Connector assembly, plug connector and ferrule unit thereof |
| CN110174727A (en) * | 2018-05-30 | 2019-08-27 | 中航光电科技股份有限公司 | A kind of tail portion sheath and the connector using the tail portion sheath |
| CN113270758A (en) * | 2019-12-20 | 2021-08-17 | 华为技术有限公司 | Connector assembly and photoelectric composite connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222169A (en) * | 1992-02-18 | 1993-06-22 | Foxconn International, Inc. | Optical fiber connector assembly |
| US6918704B2 (en) * | 2003-01-30 | 2005-07-19 | Panduit Corp. | Tunable fiber optic connector |
| JP4719755B2 (en) * | 2008-02-29 | 2011-07-06 | 住友電気工業株式会社 | Optical connector |
| CN203350487U (en) * | 2013-06-28 | 2013-12-18 | 宁波展通电信设备实业有限公司 | Single-core fiber mechanical joint terminal |
| CN204515191U (en) * | 2015-01-13 | 2015-07-29 | 深圳市龙晟光电有限公司 | The joints of optical fibre |
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2015
- 2015-11-26 CN CN201510838158.0A patent/CN105372765B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105372765A (en) | 2016-03-02 |
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