CN110515163A - Adjustable core optical fiber contact - Google Patents
Adjustable core optical fiber contact Download PDFInfo
- Publication number
- CN110515163A CN110515163A CN201910628054.5A CN201910628054A CN110515163A CN 110515163 A CN110515163 A CN 110515163A CN 201910628054 A CN201910628054 A CN 201910628054A CN 110515163 A CN110515163 A CN 110515163A
- Authority
- CN
- China
- Prior art keywords
- tail portion
- outer housing
- optical fiber
- casing
- contact
- 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.)
- Granted
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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
-
- 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
- G02B6/3843—Means for centering or aligning the light guide within the ferrule with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, e.g. measuring position or eccentricity
-
- 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
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention is about a kind of adjustable core optical fiber contact, including contact pin, the contact pin tail portion is fixed in the casing of tail portion, the tail portion casing outer is axially arranged with the outer housing for being securely fitted on optical fiber connector insulation shell, the outer housing front end fold inward forms the contraction mouth with the limit of ring flange front end face block, and the ring flange outer peripheral surface of tail portion casing front end is equipped with multiple small keys with the intracorporal keyway cooperation of shell；It is additionally provided on the outer peripheral surface of the outer housing for realizing the major key of contact and light connector insulation shell anti-rotation.The present invention realizes the limit of tail portion casing and contact outer housing by the cooperation of several small keys on the casing orchid disk of contact method tail portion and contact outer housing inboard groove, the limit of contact and connector shell is realized by the setting of the major key on ring flange outer housing, it can be limited to specified region by the lateral shift of tail portion casing and the relative rotation optical fiber of contact shell simultaneously, reduce insertion loss.
Description
Technical field
The present invention is about optical fiber contact technical field, and in particular to a kind of adjustable core optical fiber contact.
Background technique
Meet the contact of 801 standard of ARINC used in many round and rectangular connectors, this contact is packed into
Insertion loss≤0.5dB after connector, but in some special applications, to insertion loss, more stringent requirements are proposed.It is existing
There is a major key on the ring flange for having tail of product casing, there is a slot with matching on connector shell, such as Fig. 1-2 institute
Show, therefore the installation direction of contact is determining.The cooperation of only one keyway of contact itself is packed into tail portion in contact pin and covers
Pipe after fiber optic point adhesive curing, before outer housing closes up, can not adjust position of the contact pin relative to major key again.And optical fiber is relatively ceramic
The lateral shift of contact pin is random, as shown in figure 3, when the offset direction of 2 optical fiber is opposite, insertion loss caused by docking
Maximum, while this consistency and interchangeability that will lead to product between batch at random is difficult to ensure that the difference of insertion loss is reachable
0.3dB or more.
Summary of the invention
The object of the present invention is to provide a kind of new structural adjustable core optical fiber contacts, make it through contact method tail portion
The limit of tail portion casing and contact outer housing is realized in the cooperation of several small keys and contact outer housing inboard groove on casing orchid disk
Position, the limit of contact and connector shell is realized by the setting of the major key on ring flange outer housing, while can pass through tail portion
The lateral shift of the relative rotation optical fiber of casing and contact shell is limited to specified region, reduces insertion loss.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.It proposes according to the present invention
A kind of adjustable core optical fiber contact, including contact pin 1,1 tail portion of contact pin be fixed in tail portion casing 2,2 outer of tail portion casing
Axially it is arranged with the outer housing 4 for being securely fitted on optical fiber connector insulation shell, the 4 front end fold inward shape of outer housing
At the contraction mouth limited with 21 front end face block of ring flange, 21 outer peripheral surface of ring flange of 2 front end of tail portion casing is equipped with more
The small key 9 that a keyway 10 in outer housing 4 cooperates；Be additionally provided on the outer peripheral surface of the outer housing 4 for realizing contact with
The major key 8 of light connector insulation shell anti-rotation.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Adjustable core optical fiber contact above-mentioned, wherein the keyway 10 is the through slot of front opening, small key 9 is located at keyway
4 outer peripheral surface of outer housing is not protruded in 10 and.
Adjustable core optical fiber contact above-mentioned, wherein the keyway is greater than small key 10 along the axially extending depth of outer housing
In tail portion casing it is axial thickness.
Adjustable core optical fiber contact above-mentioned, wherein being equipped between step surface in 21 rear end face of the ring flange and outer housing
Spring 3, the tail portion casing 2 are equipped with the stop part for preventing tail portion casing to be detached from by 4 front end contraction mouth of outer housing.
Adjustable core optical fiber contact above-mentioned, wherein the stop part is located at shell for the tail portion casing 2 that is slidably located in
The retainer ring 5 on annular groove 11 before internal step surface；The retainer ring 5 is pressed on 11 trailing flank of annular groove by spring 3, and the retainer ring
There is the gap for preventing retainer ring from spring pressure being passed to outer housing between 5 and outer housing 4.
Adjustable core optical fiber contact above-mentioned, wherein the annular groove 11 is also needed along the axially extending length of tail portion casing 2
Meeting tail portion casing can be on the annular groove no more than retainer ring with moving distance of the secondary rollback phase of contact pin to outer housing
The requirement of maximum moving distance.
Adjustable core optical fiber contact above-mentioned, wherein the stop part is to be fixed on tail portion casing rear portion and front end block
Fixing sleeve 51 on outer housing rear end face.
Adjustable core optical fiber contact above-mentioned, wherein 2 rear portion of tail portion casing offers annular groove 11, rear end face is supported
On the positioning step 12 that 11 trailing flank of annular groove and tail portion casing are formed, fixing sleeve that front end face and outer housing rear end face offset
51 are crimped on the annular groove 11.
Adjustable core optical fiber contact above-mentioned, wherein the stop part is the fixing sleeve being fixed on outer housing rear end face
51, and the internal diameter of the fixing sleeve 51 is greater than the outer diameter of annular groove 11 and is less than the outer diameter of tail portion casing 2, end face block is in ring thereafter
On the forward positioning step 12 that 11 trailing flank of shape slot and tail portion casing are formed.
Adjustable core optical fiber contact above-mentioned, wherein the annular groove 11 meets along the axially extending length of tail portion casing
Fixing sleeve 51 can when the maximum moving distance on the annular groove is not less than tail portion casing secondary with contact pin rollback outer housing with
The requirement of relative movement distance between the casing of tail portion.
The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention
Adjustable core optical fiber contact can reach comparable technical progress and practicability, and have the extensive utility value in industry,
At least have the advantage that
The present invention is modified to adjustable core under the premise of not changing original optical fiber contact fit dimension, by the contact
, so that the lateral shift of the relative rotation optical fiber of shell is limited to specified region, insertion loss is reduced, is improved between batch
The interchangeability of product reduces the insertion loss that contact is packed into after connector.Stop part is added on the casing of tail portion simultaneously, is kept away
To exempt to open at outer housing contraction mouth, the risk that tail portion casing etc. is deviate from from outer housing, original optical fiber contact size is unchanged,
It can be generalized on all connectors using this contact.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing fiber contact；
Fig. 2 is the structural schematic diagram that existing fiber contact is packed into after connector；
Fig. 3 is existing fiber contact optical fiber offset distribution schematic diagram；
Fig. 4 is the structural schematic diagram of 1 adjustable core optical fiber contact of the embodiment of the present invention；
Fig. 5 is 1 adjustable core optical fiber contact outer shell construction schematic diagram of the embodiment of the present invention；
Fig. 6 is 1 adjustable core optical fiber contact optical fiber offset distribution schematic diagram of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of 2 adjustable core optical fiber contact of the embodiment of the present invention；
Fig. 8 is the rear sleeve structural schematic diagram of 2 adjustable core optical fiber contact of the embodiment of the present invention；
Fig. 9 is 2 adjustable core optical fiber contact retaining ring structural schematic diagram of the embodiment of the present invention；
Figure 10 is the structural schematic diagram of 3 adjustable core optical fiber contact of the embodiment of the present invention；
Figure 11 is 3 adjustable core optical fiber contact rear sleeve structural schematic diagram of the embodiment of the present invention；
Figure 12 is 3 adjustable core optical fiber contact fixing sleeve structural schematic diagram of the embodiment of the present invention；
Figure 13 is the structural schematic diagram of 4 adjustable core optical fiber contact of the embodiment of the present invention.
[main element symbol description]
1: contact pin
2: tail portion casing
21: ring flange
22: non-slip groove
3: spring
4: outer housing
5: retainer ring
51: fixing sleeve
6: pressure welding case
7: optical cable
8: major key
9: small key
10: keyway
11: annular groove
12: positioning step
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to its specific embodiment of adjustable core optical fiber contact proposed according to the present invention, structure, feature and
Its effect, detailed description is as follows.
Fig. 4-6 is please referred to, is a kind of Each part schematic diagram of the adjustable core optical fiber contact of the embodiment of the present invention 1,
The contact includes contact pin 1, which is fixed in tail portion casing 2, which is equipped with ring flange 21, should
Ring flange outer peripheral surface is equipped with multiple small keys 9 projected radially outward along tail portion casing.Move along the axis outside the tail portion casing to
It is arranged with the outer housing 4 for being securely fitted on optical fiber connector insulation shell, which, which forms, receives
21 front end face block of ring flange on necking, the contraction mouth and tail portion casing limits, and prevents tail portion casing from being taken off by 4 front end of outer housing
From.
4 outer profile of outer housing is pre-large post-small ladder shaft-like, and has the penetrating inner cavity axially extended, this is interior
Chamber is pre-large post-small ladder-like cavity, forms a step surface facing forward on the inner wall of big areola joint, the step surface with
Spring 3 is equipped between 21 rear end face of ring flange.Several keyways 10 are offered in 4 front inner wall of outer housing, on ring flange 21
Small key 9 be inlaid in the keyway 10, and the keyway is greater than small key 10 along the depth of outer housing axial direction and exists tail portion casing is axial
Thickness so that tail portion casing 2 and outer housing 4 are axially having certain opposite activity.Internal diameter at 4 keyway of outer housing
Less than maximum diameter of a circle in the periphery where above-mentioned small key 9, outer diameter is greater than the straight of greatest circle in the periphery where small key 9
Diameter.
In embodiments of the present invention, the keyway 10 is the through slot of front opening, and but not limited to this.
It is additionally provided on the outer peripheral surface of 4 front end of outer housing for realizing contact and light connector insulation shell anti-rotation
Major key 8, the major key 8 is along outer housing radially protruding.
In embodiments of the present invention, the small key is circumferentially uniformly distributed 4, and keyway is also corresponding circumferentially uniformly distributed
4, the lateral shift of optical fiber can be limited to specified region, such as with major key by adjusting the cooperation of this four small keyways
Centered on, -45 °~+45 ° of region.When the lateral shift for docking 2 optical fiber is all located at identical smaller area simultaneously, it
Transversal displacement it is opposite just reduce, insertion loss reduces, and the consistency and interchangeability of product also improve between batch
.
In embodiments of the present invention, tail portion casing tail portion coaxially offers several non-slip grooves 22, and clamping sleeve 6 is by optical cable
7 traction-resistant fibre is pressed on the tail portion casing, increases the friction with traction-resistant fibre by non-slip groove, realizes that optical cable and tail portion cover
The tensile connection of pipe.
Fig. 7-9 is please referred to, is a kind of structural schematic diagram of the adjustable core optical fiber contact of the embodiment of the present invention 2, the implementation
The difference of example and embodiment 1 are as follows: the position before the 2 upper outer shell step surface of tail portion casing is equipped with for avoiding spring 3 external
The intracorporal step surface force of shell, prevents outer housing front end contraction mouth from opening under the tension of spring 3, so that tail portion casing is by the receipts
Hold back the retainer ring 5 being detached from mouth, and the setting of the retainer ring 5 will not rollback secondary to contact pin when tail portion casing opposite shell body rollback
Spacing impacts.
Specifically, the retainer ring is slidably located in, tail portion casing is located on the annular groove before outer housing step surface, spring 3
Be pressed in 5 front end of retainer ring, which is pressed on 11 trailing flank of annular groove, and the retainer ring 5 and outer housing inner wall and
Have gap between step surface so that be at outer housing closing in not by spring force, in this way it is avoided that at closing in open risk,
Improve the reliability of contact.
Tail portion casing when the annular groove 11 also needs to meet contact pin secondary rollback along the axially extending length of tail portion casing 2
The rollback distance of opposite shell body is not influenced by annular groove leading flank, i.e., the length retainer ring width of annular groove is filled with contact pin is greater than
Enter the sum of the distance of secondary rollback after connector.
In embodiments of the present invention, 5 side of retainer ring offers installing port, is clamped the retainer ring 5 by the installing port
On annular groove, have the characteristics that facilitate installation.
Figure 10-12 is please referred to, is the structural schematic diagram of 3 adjustable core optical fiber contact of the embodiment of the present invention, in the implementation
The difference of example and embodiment 1 are as follows: 2 rear portion of tail portion casing is equipped with the fixing sleeve 51 to offset with outer housing rear end face, so that outside
The elastic force of spring 3 can be passed to tail portion casing by fixing sleeve 51 by shell, to avoid stress at outer housing front end convergence mouth.And
When the setting of the tail portion casing 51 does not influence the secondary rollback of contact pin, the rollback distance of tail portion casing opposite shell body.
Specifically, the annular groove 11 is located at 2 rear portion of tail portion casing, the crimping of fixing sleeve 51 is fixed on the annular groove 11,
And on the forward positioning step 12 that 51 rear end face of fixing sleeve is against 11 trailing flank of annular groove and tail portion casing is formed, front end face
It offsets with outer housing rear end face, so that outer housing closing in does not stress when being in the separation of connector plug socket, avoids at closing in yet
The risk of opening improves the reliability of contact.
Figure 13 is please referred to, is the structural schematic diagram of 4 adjustable core optical fiber contact of the embodiment of the present invention, the embodiment and reality
The difference for applying example 3 is: the fixing sleeve 51 is fixed on outer housing tail portion, and the internal diameter of the fixing sleeve 51 is greater than annular groove 11
Outer diameter, and it is less than the outer diameter of tail portion casing, so that 51 rear end face block of fixing sleeve is in 11 trailing flank of annular groove and tail portion sleeve
At forward positioning step 12 on so that outer housing closing in be in connector plug socket separation when do not stress yet, avoid receiving
The risk opened at mouthful, improves the reliability of contact.In this embodiment, the annular groove 11 is axially extending along tail portion casing
Length when meeting the secondary rollback of contact pin, the relative movement spacing between outer housing and tail portion casing.I.e. contact is packed into connection
After device, when the secondary rollback of contact pin, contact pin drives tail portion casing etc. whole outer when retreating together, and fixing sleeve can be in annular slot length side
To moving freely, without the block by annular groove leading flank.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification made to the above embodiment, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of adjustable core optical fiber contact, including contact pin (1), which is fixed in tail portion casing (2), the tail
Parts casing pipe (2) outer is axially arranged with the outer housing (4) for being securely fitted on optical fiber connector insulation shell, the outer housing
(4) front end fold inward forms the contraction mouth limited with ring flange (21) the front end face block of tail portion casing (2) front end, feature
Be: ring flange (21) outer peripheral surface is equipped with multiple small keys (9) with keyway (10) cooperation in outer housing (4)；It is described
It is additionally provided on the outer peripheral surface of outer housing (4) for realizing the major key (8) of contact and light connector insulation shell anti-rotation.
2. adjustable core optical fiber contact according to claim 1, it is characterised in that: wherein the keyway (10) is front end
The through slot of opening, small key (9) are located in keyway (10) and do not protrude outer housing (4) outer peripheral surface.
3. adjustable core optical fiber contact according to claim 1, it is characterised in that: wherein the keyway (10) is along shell
The axially extending depth of body be greater than small key (9) tail portion casing it is axial thickness.
4. adjustable core optical fiber contact according to claim 3, it is characterised in that: wherein ring flange (21) rear end face
With in outer housing between step surface be equipped with spring (3), the tail portion casing (2) be equipped with for prevent outer housing (4) front end receive
The elastic force that necking is in spring (3) opens, so that the stop part that tail portion casing is detached from by outer housing (4) front end contraction mouth,
And the setting of the stop part does not influence relative motion when contact pin secondary rollback between tail portion casing and outer housing.
5. adjustable core optical fiber contact according to claim 4, it is characterised in that: wherein the stop part is sliding sleeve
It is located at the retainer ring (5) that tail portion casing (2) is located on the annular groove (11) in outer housing before step surface；Spring (3) is by the retainer ring (5)
It is pressed on annular groove (11) trailing flank, and prevents retainer ring from passing to spring pressure between the retainer ring (5) and outer housing (4)
The gap of outer housing.
6. adjustable core optical fiber contact according to claim 5, it is characterised in that: wherein the annular groove (11) is along tail
The axially extending length of parts casing pipe meets tail portion casing and is not more than card with moving distance of the secondary rollback phase of contact pin to outer housing
Circle can be in the requirement of the maximum moving distance on the annular groove.
7. adjustable core optical fiber contact according to claim 4, it is characterised in that: wherein the stop part is to be fixed on
The fixing sleeve (51) of tail portion casing rear portion and front end block on outer housing rear end face.
8. adjustable core optical fiber contact according to claim 7, it is characterised in that: wherein after the tail portion casing (2)
Portion offers annular groove (11), on the positioning step (12) that rear end face is against annular groove (11) trailing flank and tail portion casing is formed,
The fixing sleeve (51) that front end face offsets with outer housing rear end face, which crimps, to be fixed on the annular groove (11).
9. adjustable core optical fiber contact according to claim 1, it is characterised in that: wherein the stop part is to be fixed on
Fixing sleeve (51) on outer housing rear end face, and the internal diameter of the fixing sleeve (51) is greater than the outer diameter of annular groove (11) and is less than tail portion
The outer diameter of casing (2), the forward positioning step that end face block is formed in annular groove (11) trailing flank and tail portion casing thereafter
(12) on.
10. adjustable core optical fiber contact according to claim 9, it is characterised in that: wherein described annular groove (11) edge
Casing axially extending length in tail portion meets fixing sleeve (51) can be in the maximum moving distance on the annular groove not less than tail portion
When secondary with the contact pin rollback of casing, the requirement of the relative movement distance between outer housing and tail portion casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628054.5A CN110515163B (en) | 2019-07-12 | 2019-07-12 | Adjustable core optical fiber contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628054.5A CN110515163B (en) | 2019-07-12 | 2019-07-12 | Adjustable core optical fiber contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110515163A true CN110515163A (en) | 2019-11-29 |
| CN110515163B CN110515163B (en) | 2021-10-22 |
Family
ID=68622905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910628054.5A Active CN110515163B (en) | 2019-07-12 | 2019-07-12 | Adjustable core optical fiber contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110515163B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050232A (en) * | 2021-03-24 | 2021-06-29 | 中航光电科技股份有限公司 | Optical fiber contact element and optical fiber connector |
| WO2024139455A1 (en) * | 2022-12-27 | 2024-07-04 | 华为技术有限公司 | Ferrule assembly, prefabricated optical fiber and optical fiber connector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050232A (en) * | 2021-03-24 | 2021-06-29 | 中航光电科技股份有限公司 | Optical fiber contact element and optical fiber connector |
| WO2024139455A1 (en) * | 2022-12-27 | 2024-07-04 | 华为技术有限公司 | Ferrule assembly, prefabricated optical fiber and optical fiber connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110515163B (en) | 2021-10-22 |
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