CN110174728A - Connector and its tail portion sheath - Google Patents
Connector and its tail portion sheath Download PDFInfo
- Publication number
- CN110174728A CN110174728A CN201810542273.7A CN201810542273A CN110174728A CN 110174728 A CN110174728 A CN 110174728A CN 201810542273 A CN201810542273 A CN 201810542273A CN 110174728 A CN110174728 A CN 110174728A
- Authority
- CN
- China
- Prior art keywords
- cut groove
- endpiece
- tail portion
- connector
- slot
- 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.)
- Pending
Links
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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
-
- 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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3835—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like
-
- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
-
- 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
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention provides connector and its tail portion sheaths, tail portion sheath of the present invention includes body, there is axially extending threading channel in the middle part of body, the front end of body has the linkage section for connecting with connector shell, more than two cut groove groups are in axial direction equipped at intervals on the endpiece of body, the distance of slot bottom to the endpiece axis of the cut groove of each cut groove group is sequentially reduced from front to back on endpiece.In view of cable is remoter from the front end of body, deformation extent is bigger, the distance of slot bottom to the endpiece axis of the cut groove of each cut groove group is sequentially reduced from front to back, the deformability of body endpiece can be increased from front to back, guarantee that the deformability of body in the axial direction and the deformation characteristic of cable are consistent as far as possible, the smooth transition for realizing cable bending avoids mutation from bending.
Description
Technical field
The present invention relates to connector and its tail portion sheaths.
Background technique
With the rapid development of communication information technology, optical fiber connector in people's lives using more and more extensive, by
This has also derived the various types of optical fiber connector such as SC, FC, LC.As Authorization Notice No. is
Disclosed in the entitled a kind of Chinese utility model patent of novel SC optical fiber connector of CN202472060U, utility model, light
Fiber connector generally comprises shell and the tail portion sheath for being mounted on shell tail portion, optical cable penetrate in shell from the sheath of tail portion,
And connect with the intracorporal contact pin of shell and opposite shell is fixed, the front end of shell is used for and the connector plug connection that is adapted to.Wherein,
The tail portion sheath of optical fiber connector is for protecting the optical cable of shell tail portion.But the utility model patent institute as above-mentioned is public
The optical fiber connector opened when in use, when optical cable is by lateral force since tail portion sheath lateral bending resistance is larger, optical cable
The maximum position multidigit to occur bending and deformation easily causes cable bend radii to be less than using rule in the tail end of tail portion sheath
Minimum bending radius required by model.
Also give various solutions for such problems prior art, as data of publication of application be 2014.01.01,
The Chinese invention patent application that application publication number is CN103492921A discloses a kind of strain for optical fiber connector and disappears
Except tail sleeve, the front end of the tail sleeve has the linkage section for connecting with connector, has strain relief part on endpiece, strain disappears
Except part has the outer shape of conical butt, strain relief part is formed by multiple coaxial annular parts of axially spaced-apart,
Annular section is taken across the axial interconnecting piece interconnection that the circumferential gap extends, i.e., two neighboring annular section and axial connection
Portion surrounds cut groove, forms the cut groove group being made of two cut grooves between two neighboring annular section, adjacent two are cut
The flute length direction of grooving group is got along vertically, to make optical cable in optical fiber by cut groove when the optical fiber in it receives lateral force
The deformation relative smooth of tail portion of connector position.But exist since the strain relief part of this tail sleeve is formed by cut groove
The tail sleeve deformability caused on axial direction is constant, and fiber distance connector shell is remoter, and deflection is bigger, in this way
Contradiction make optical fiber, there are also the bending part that opposite tail sleeve has mutation, optical fiber be easy to cause to exist in the endpiece extended position of tail sleeve
Bending radius at this is less than minimum bending radius required by operating specification.
Summary of the invention
The purpose of the present invention is to provide one kind can seamlessly transit when cable is by lateral force with connector shell
Curved tail portion sheath；Meanwhile the present invention also provides a kind of connectors using the tail portion sheath.
To achieve the above object, tail portion sheath of the present invention includes body, has axially extending threading channel in the middle part of body,
The front end of body has the linkage section for connecting with connector shell, is in axial direction equipped at intervals with two on the endpiece of body
The above cut groove group, the distance of the slot bottom of the cut groove of each cut groove group to endpiece axis successively subtracts from front to back on endpiece
It is small.In view of cable is remoter from the front end of body, deformation extent is bigger, and the slot bottom of the cut groove of each cut groove group arrives from front to back
The distance of endpiece axis is sequentially reduced, and can be increased the deformability of body endpiece from front to back, be guaranteed as far as possible in axial direction
The deformability of upper sleeve body and the deformation characteristic of cable are consistent, realize the smooth transition of cable bending, and mutation is avoided to bend.
Every group of cut groove includes at least a pair of single slot, and two slots for being included with a pair of single slot are set about body axisymmetrical
It sets.Such one group of cut groove ensure that deformation of the endpiece in opposite both direction.
When being arranged in groups cut groove, at least one set of cut groove includes two pairs of single slots, and the flute length direction of two pairs of single slots is perpendicular,
Same group of cut groove in this way ensure that endpiece can deform on orthogonal four direction.
The cut groove group is uniformly arranged in the axial direction in body, guarantees the uniform change of body axial deformation as far as possible
Change.
The body has elastically-deformable plastic material using TPE or TPV or TPU etc., and such body has certain
Consistency and elasticity, when cable is by lateral force, deformation buffer effect is preferable.
Connector of the invention includes shell and the tail portion sheath for being mounted on housing rear end, and tail portion sheath includes body,
There is axially extending threading channel, the front end of body has the linkage section for connecting with connector shell, set in the middle part of body
More than two cut groove groups are in axial direction equipped at intervals on the endpiece of body, the shearing of each cut groove group from front to back on endpiece
The distance of the slot bottom of slot to endpiece axis is sequentially reduced.In view of cable is remoter from the front end of body, deformation extent is bigger, in the past
The distance of slot bottom to the endpiece axis of the cut groove of each cut groove group is sequentially reduced backward, can increase body endpiece from front to back
Deformability, guarantee that the deformability of body in the axial direction and the deformation characteristic of cable are consistent as far as possible, realize cable it is curved
The smooth transition of folding avoids mutation from bending.
Every group of cut groove includes at least a pair of single slot, and two slots for being included with a pair of single slot are set about body axisymmetrical
It sets.Such one group of cut groove ensure that deformation of the endpiece in opposite both direction.
When being arranged in groups cut groove, at least one set of cut groove includes two pairs of single slots, and the flute length direction of two pairs of single slots is perpendicular,
Same group of cut groove in this way ensure that endpiece can deform on orthogonal four direction.
The cut groove group is uniformly arranged in the axial direction in body, ensure that the uniform change of body axial deformation as far as possible
Change.
The body has elastically-deformable plastic material using TPE or TPV or TPU etc., and such body has certain
Consistency and elasticity, when cable is by lateral force, deformation buffer effect is preferable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of SC optical fiber connector of the invention；
Fig. 2 is the cross-sectional view in Fig. 1 at B-B；
Fig. 3 is the structural schematic diagram of tail portion sheath of the invention；
Fig. 4 is the cross-sectional view in Fig. 3 at A-A.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Connector of the invention can be electric connector, or optical fiber connector.Herein specifically with the connection of SC optical fiber
Present invention is described for device.
SC optical fiber connector of the invention including shell and is mounted on the tail portion sheath of housing rear end, and optical cable is from tail portion
It passes through in threading channel in the middle part of sheath and protrudes into shell forward, connect with the intracorporal contact pin of shell and keep relatively solid with shell
It is fixed.Wherein, tail portion sheath is as shown in Fig. 3 ~ 4, including body, and body can be made of rubber materials such as TPE or TPV or TPU,
With certain consistency and elasticity.The front end of body has linkage section 10, and the front end inner peripheral surface of the linkage section 10 is equipped with internal projecting ring
12, and connect by the internal projecting ring 12 with connector shell.Body has endpiece 11 in the rear side of linkage section, excellent in the present embodiment
Selection of land sets endpiece 11 to the pyramid type gradually tapered up from front to back, certainly, is not intended to limit endpiece in other embodiments
It can be other shapes, such as cylindrical type or ladder column type.The front end of the close linkage section 10 of endpiece 11 has deformable transition ring
Slot 3, deformable transition annular groove 3 it is circumferentially closed and make be located at shell outside optical cable when by lateral force, body endpiece energy
Lateral deformation takes place from deformable transition annular groove, and not lateral force of the pipe optical cable by which kind of direction, the tail of body
Lateral deformation capacity of the section at deformable transition annular groove is all consistent.
Rear side on the endpiece of body in deformable transition annular groove 3 is additionally provided with cut groove, and the depth direction of cut groove is along body
Radially extend, be open radially, length perpendicular to body axis.Cut groove has multiple and is arranged in groups, such as Fig. 3, shearing
Slot group 2 includes two pairs of single slots, includes two U-type grooves to 22 to 21 and single slot with the namely single slot of a pair of single slot, and with a pair of
Axisymmetrical of two U-type grooves that single slot is included about body.It mutually hangs down in the flute length direction for two pairs of single slots that cut groove group 2 includes
Directly, same group of cut groove in this way ensure that endpiece can deform on orthogonal four direction.
Certainly, cut groove group includes a pair of single slot, connector as shown in Figure 1 and 2, including shell 1 in other embodiments
And it is mounted on the tail portion sheath of 1 rear end of shell, optical cable passes through from the threading channel 4 in the middle part of the sheath of tail portion and protrudes into shell forward
In body 1, it is connect with the contact pin 19 in shell 1 and keeps relatively fixed with shell.It is being deformed on the endpiece of the body of tail portion sheath
The rear side of transition annular groove 3 is additionally provided with seven cut groove groups, and each cut groove group includes a pair of single slot, the list of adjacent two cut grooves group
The flute length direction of slot pair is perpendicular.
In embodiment shown in Fig. 3 ~ 4, there are four cut groove groups 2 and the axial uniform intervals setting on endpiece, in the past
In rearwardly direction, the groove depth of each cut groove is successively increased, the distance of slot bottom to endpiece axis is sequentially reduced deeply, and groove width is successively
Increase, the cut groove positioned at the cut groove group of rear side is even connected to threading channel 4.Endpiece deforms energy closer to rear side in this way
Power is stronger, so that smooth transition when the optical cable for being located at hull outside occurs bending and deformation from front to back.Certainly, the number of cut groove group
Amount is the Design of length according to the endpiece of body, is not limited in four groups in making embodiments thereof, can be five groups, three
Group, six groups, seven groups and eight groups etc..
On the basis of example 1, can also change to obtain embodiment two, the embodiment three of connector, such as embodiment two
In, with embodiment one the difference is that, on direction from front to back, the slot bottom of the cut groove of cut groove group to endpiece
The distance of axis is sequentially reduced, and groove width remains unchanged；In embodiment three, with embodiment one the difference is that, in the past
In rearwardly direction, the groove width of the cut groove of cut groove group is sequentially increased, and the distance of slot bottom to endpiece axis remains unchanged.
In addition, in example IV, cut groove group only includes a shearing the present invention also provides the example IV of connector
Slot, uniform intervals are arranged multiple cut groove groups in the axial direction, and circumferential position of the cut groove of each cut groove group on endpiece
It sets and is staggered, it is preferable that the cut groove of each cut groove group can be made to be covered with the endpiece of body in a circumferential direction, for example, adjacent
The cut grooves of two cut groove groups be staggered in circumferential direction certain angle, it is 30 °, 45 ° or 60 ° etc., multiple in this way to cut
The cut groove of grooving group can be covered with endpiece in a circumferential direction.
The present invention also provides the embodiment five of connector, in embodiment five, cut groove group includes three cut grooves, and three
Cut groove is located at same circumference and is staggered in a circumferential direction 60 °.Certainly, it similar can be changed by embodiment five and obtain a variety of realities
Mode is applied, for example cut groove group includes the cut groove that two or four is located at same circumference, and same the multiple of cut groove group cut
Grooving is staggered certain angle in a circumferential direction.
A kind of tail portion sheath the present invention also provides tail portion sheath, in the embodiment of specific structure and above-mentioned connector
Structure is identical, and details are not described herein again.
Claims (10)
1. tail portion sheath, including body, there is axially extending threading channel in the middle part of body, the front end of body have for even
The linkage section of device shell connection is connect, is in axial direction equipped at intervals with more than two cut groove groups on the endpiece of body, characterized in that
The distance of slot bottom to the endpiece axis of the cut groove of each cut groove group is sequentially reduced from front to back on endpiece.
2. tail portion sheath according to claim 1, characterized in that every group of cut groove includes at least a pair of single slot, with a pair of
Two slots that single slot is included are arranged about body axisymmetrical.
3. tail portion sheath according to claim 2, characterized in that at least one set of cut groove includes two pairs of single slots, two pairs of lists
The flute length direction of slot is perpendicular.
4. tail portion sheath according to claim 1 to 3, characterized in that the cut groove group is in the axis in body
It is uniformly arranged upwards.
5. tail portion sheath according to claim 1 to 3, characterized in that the body using TPE or TPV or
TPU etc. has elastically-deformable plastic material.
6. connector, including shell and it is mounted on the tail portion sheath of housing rear end, tail portion sheath includes body, tool in the middle part of body
There is an axially extending threading channel, the front end of body has a linkage section for connecting with connector shell, on the endpiece of body
In axial direction it is equipped at intervals with more than two cut groove groups, characterized in that the shearing of each cut groove group from front to back on endpiece
The distance of the slot bottom of slot to endpiece axis is sequentially reduced.
7. connector according to claim 6, characterized in that every group of cut groove includes at least a pair of single slot, with a pair of single
Two slots that slot is included are arranged about body axisymmetrical.
8. connector according to claim 7, characterized in that at least one set of cut groove includes two pairs of single slots, two pairs of single slots
Flute length direction it is perpendicular.
9. according to connector described in claim 6-8 any one, characterized in that the cut groove group is in the axial direction in body
On be uniformly arranged.
10. according to connector described in claim 6-8 any one, characterized in that the body uses TPE or TPV or TPU
Deng with elastically-deformable plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542273.7A CN110174728A (en) | 2018-05-30 | 2018-05-30 | Connector and its tail portion sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542273.7A CN110174728A (en) | 2018-05-30 | 2018-05-30 | Connector and its tail portion sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110174728A true CN110174728A (en) | 2019-08-27 |
Family
ID=67689258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810542273.7A Pending CN110174728A (en) | 2018-05-30 | 2018-05-30 | Connector and its tail portion sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110174728A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058172A (en) * | 1990-10-31 | 1991-10-15 | Motorola, Inc. | Electromagnetic interference suppressant assembly |
| CN1118191A (en) * | 1993-02-18 | 1996-03-06 | 美国3M公司 | Pull-proof, modular fiber optic connector system |
| CN1121180A (en) * | 1994-06-29 | 1996-04-24 | 莫列斯公司 | Optical fiber connector and method of fabricating same |
| CN1364328A (en) * | 1999-05-28 | 2002-08-14 | 克罗纳数字通信公司 | Cable assembly with molded stress relief and method for making the same |
| CN101589320A (en) * | 2007-01-24 | 2009-11-25 | Adc电信公司 | Hardened fiber optic connector |
| CN201887256U (en) * | 2010-11-22 | 2011-06-29 | 富士康(昆山)电脑接插件有限公司 | Stress releasing element |
| CN202433571U (en) * | 2012-02-27 | 2012-09-12 | 深圳日海通讯技术股份有限公司 | High-density optical fiber connector |
| CN104364686A (en) * | 2012-02-07 | 2015-02-18 | 泰科电子瑞侃有限公司 | Cable termination assembly and method for connectors |
| CN104516060A (en) * | 2013-10-03 | 2015-04-15 | 扇港元器件有限公司 | Connector housing for securing an optical cable and methods of use and manufacture thereof |
| CN105143940A (en) * | 2013-01-09 | 2015-12-09 | 康宁光电通信有限责任公司 | Fiber optic connector assemblies having windowed optical fibers and methods thereof |
| US20160349459A1 (en) * | 2015-05-29 | 2016-12-01 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| CN106687839A (en) * | 2014-09-12 | 2017-05-17 | Sei光学前沿株式会社 | Optical connector |
| US20170357060A1 (en) * | 2016-06-13 | 2017-12-14 | Corning Optical Communications LLC | Connector with trigger locking feature, and cable assemblies and methods including the same |
| US20180081124A1 (en) * | 2015-02-18 | 2018-03-22 | US Conec, Ltd | Spring Push and Push-Pull Tab for Tightly Spaced Fiber Optic Connectors |
-
2018
- 2018-05-30 CN CN201810542273.7A patent/CN110174728A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058172A (en) * | 1990-10-31 | 1991-10-15 | Motorola, Inc. | Electromagnetic interference suppressant assembly |
| CN1118191A (en) * | 1993-02-18 | 1996-03-06 | 美国3M公司 | Pull-proof, modular fiber optic connector system |
| CN1121180A (en) * | 1994-06-29 | 1996-04-24 | 莫列斯公司 | Optical fiber connector and method of fabricating same |
| CN1364328A (en) * | 1999-05-28 | 2002-08-14 | 克罗纳数字通信公司 | Cable assembly with molded stress relief and method for making the same |
| CN101589320A (en) * | 2007-01-24 | 2009-11-25 | Adc电信公司 | Hardened fiber optic connector |
| CN201887256U (en) * | 2010-11-22 | 2011-06-29 | 富士康(昆山)电脑接插件有限公司 | Stress releasing element |
| CN104364686A (en) * | 2012-02-07 | 2015-02-18 | 泰科电子瑞侃有限公司 | Cable termination assembly and method for connectors |
| CN202433571U (en) * | 2012-02-27 | 2012-09-12 | 深圳日海通讯技术股份有限公司 | High-density optical fiber connector |
| CN105143940A (en) * | 2013-01-09 | 2015-12-09 | 康宁光电通信有限责任公司 | Fiber optic connector assemblies having windowed optical fibers and methods thereof |
| CN104516060A (en) * | 2013-10-03 | 2015-04-15 | 扇港元器件有限公司 | Connector housing for securing an optical cable and methods of use and manufacture thereof |
| CN106687839A (en) * | 2014-09-12 | 2017-05-17 | Sei光学前沿株式会社 | Optical connector |
| US20180081124A1 (en) * | 2015-02-18 | 2018-03-22 | US Conec, Ltd | Spring Push and Push-Pull Tab for Tightly Spaced Fiber Optic Connectors |
| US20160349459A1 (en) * | 2015-05-29 | 2016-12-01 | Corning Optical Communications LLC | Fiber optic cable assemblies with cap apparatuses for sealing optical fiber connectors and associated methods |
| US20170357060A1 (en) * | 2016-06-13 | 2017-12-14 | Corning Optical Communications LLC | Connector with trigger locking feature, and cable assemblies and methods including the same |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |