CN109839699A - A kind of highly reliable extending type optical fiber connector - Google Patents
A kind of highly reliable extending type optical fiber connector Download PDFInfo
- Publication number
- CN109839699A CN109839699A CN201910191846.0A CN201910191846A CN109839699A CN 109839699 A CN109839699 A CN 109839699A CN 201910191846 A CN201910191846 A CN 201910191846A CN 109839699 A CN109839699 A CN 109839699A
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- Prior art keywords
- mounting plate
- optical fiber
- contact
- opening
- fiber connector
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 229910052573 porcelain Inorganic materials 0.000 claims description 18
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000004323 axial length Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000003032 molecular docking Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of highly reliable extending type optical fiber connector, solve the problems, such as that optical fiber connector mechanical life in the prior art is short, loss is big, easy to pollute.Optical fiber connector of the invention includes shell (1), mounting plate component (2), expands contact (3), gasket (4), fixing clasp (5).The present invention can reduce the relative motion that contact is expanded under vibration, impact condition, to improve reliability and the service life of connector, it avoids and the phenomenon that fibercuts occurs because of optical fiber protrusion, the damage of optical fiber can effectively be avoided, optical fiber can not have to end face and contact with end face, it can be achieved with the transmission of optical signal, it is ensured that while optical signal excellent transmission, the service life of optical fiber contact body and optical fiber connector also can be improved.
Description
Technical field
The invention belongs to optical fiber connector technical fields, are related to a kind of highly reliable extending type optical fiber connector.
Background technique
Conventional fiber optic connectors are docked by the way of optical fiber contact body end face-end face contact, optical path coupling are realized, to reach
To the purpose of optic path.In long-term use, optical fiber connector exposes easy to pollute, fiber end face damage of fiber end face etc.
Problem, the strong influence transmission of optical signal, environmental resistance and mechanical life be lower, and contact is easy in docking
Rotation causes docking abrasion, increases loss.
Summary of the invention
In order to solve the above technical problem, the present invention provides the highly reliable extending type light that a kind of mechanical life is long, loss is small
Fiber connector.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of highly reliable extending type optical fiber connector, is somebody's turn to do
Connector includes shell, mounting plate component, expands contact, gasket, fixing clasp；
The mounting plate component is placed in shell and is achieved a fixed connection by fixing clasp and shell, in mounting plate component
Front end periphery be set with gasket, gasket is mounted in the annular groove of shell inner circumferential；
The mounting plate component includes front mounting plate, rear mounting plate and grommet, and front mounting plate and rear mounting plate pass through spiral shell
Set realizes with screw and fixes, front mounting plate and rear mounting plate the upper and lower two sides of swivel nut be respectively equipped with coaxial arrangement it is first fixed
Position hole and second location hole, interference is equipped with short positioning pin in first positioning hole and second location hole, and a left side for swivel nut,
Multiple coaxial arrangements are respectively equipped with inside the front mounting plate of right two sides and rear mounting plate expands the first of contact for installing
Vestibule and the second vestibule, expand contact and axially penetrate through and be mounted on the first vestibule and the second hole is intracavitary；Grommet is solid by gluing
It is scheduled on rear mounting plate tail end.
The contact that expands includes lens subassembly, ceramic insertion core, inner housing, spring, outer housing；The inner housing it is interior
Portion is equipped with the different stepped hole of diameter, and the ceramic insertion core is mounted in the small diameter bore of stepped hole by interference fit, lens
Component is mounted in the large diameter hole of stepped hole, and ceramic insertion core is inserted into lens subassembly and fixes, and spring pocket is mounted in inner housing periphery
And be placed in the internal cavities of outer housing front end together, the front end of inner housing is equipped with positioning key raised outward, outer housing
Front end is equipped with opening, and positioning key is placed in opening, and is axially moveable in opening, including the flexible drive outer housing of spring stress
Shell peripheral, axial is reciprocally slided, and the front end face of outer housing carries out shell nosing treatment, living with axial direction of the opening cooperation to positioning key
It is dynamic to be limited.
Further, the opening is axial U-shaped structure, and the radial width of opening is adapted with the width of positioning key,
Radial motion of the opening limitation positioning key in opening, the axial length of opening are greater than positioning key length, and positioning key is being open
Inside it can axially move.
Further, it is equipped with keyway in the front mounting plate, expands contact and is cooperated by positioning key and keyway, will be expanded
Contact is fixed in the first vestibule and the second vestibule in mounting plate component, prevents the radial rotating for expanding contact.
Further, the lens subassembly includes self-focusing lens and porcelain bushing, and self-focusing lens gluing is fixed on pottery
Front end inner circumferential inside porcelain bushing shell, and there is spacing between the front end face of self-focusing lens and the front end face of porcelain bushing, pottery
Porcelain bushing shell clearance fit is mounted in the large diameter hole of inner housing, in the front end insertion porcelain bushing of ceramic insertion core, with self-focusing
Lens are coaxial, and so that the front end face of ceramic insertion core is located at autohemagglutination by adjusting position of the porcelain bushing tail end in large diameter hole
On the focal position of focus lens, reduce loss, the abrasion being also possible to prevent between end face.
Further, the self-focusing lens is cylindrical structure.
Compared with prior art, the invention has the following beneficial effects:
Mounting plate component of the invention is equipped with location hole, docks in connector in use, accurate positioning can be played and makees
With, and can reduce the relative motion that contact is expanded under vibration, impact condition, to improve reliability and the longevity of connector
Life.
Of the invention expands contact using anti-rotation structure, that is, passes through the cooperation of positioning key and opening, and realization prevents from expanding
The radial rotating of contact, docking is accurate, and loss lower region is each attached on a direction, loss is reduced.And it positions
The cooperation of the keyway of key and front mounting plate, will expand contact and is better secured in mounting plate component.And setting in contact
Spring, the contact of connector meeting stress in docking, spring spring stress is flexible to drive outer housing in inner housing peripheral, axial
It reciprocally slides, can reduce contact stress, the excessive contact of stress is prevented to be damaged；
Of the invention expands contact using self-focusing lens, can carry out beam-expanding collimation and convergence to light beam, thus
Spot diameter can be increased, avoid and the phenomenon that fibercuts occur because of optical fiber protrusion, can effectively avoid the damage of optical fiber, light
Fibre can not have to end face and contact with end face, can be achieved with the transmission of optical signal, it is ensured that while optical signal excellent transmission, can also mention
It is the service life of high optical fiber contact and optical fiber connector, not easy to pollute.
Highly reliable extending type optical fiber connector of the invention can be matched with the optical fiber connector of same-interface, setting
Multiple optical fiber contacts, it can be achieved that multipath light signal transmission.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of mounting plate component；
Fig. 3 is the structural schematic diagram for expanding contact；
Fig. 4 is the schematic perspective view for expanding contact；
Fig. 5 is the structural schematic diagram of lens subassembly；
Fig. 6 is schematic perspective view of the invention；
Fig. 7 is the right view of Fig. 6；
In figure: 1- shell；1-1- annular groove；
2- mounting plate component；
2-1- front mounting plate；2-1-1- first positioning hole；The first vestibule of 2-1-2-；2-1-3- keyway；
Mounting plate after 2-2-；2-2-1- second location hole；The second vestibule of 2-2-2-；
2-3- grommet；
3- expands contact；
3-1- lens subassembly；3-1-1- self-focusing lens；3-1-2- porcelain bushing；
3-2- ceramic insertion core；
3-3- inner housing；3-3-1- stepped hole；3-3-1-1- small diameter bore；3-3-1-2- large diameter hole；3-3-2- positioning
Key；
3-4- spring；
3-5- outer housing；
3-5-1- cavity；3-5-2- opening.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Referring to Fig.1, a kind of highly reliable extending type optical fiber connector, the connector include shell 1, mounting plate component 2, expand
Contact 3, gasket 4, fixing clasp 5；
The mounting plate component 2 is placed in shell 1 and is achieved a fixed connection by fixing clasp 5 with shell 1, in mounting plate
The front end periphery of component 2 is set with gasket 4, and gasket 4 is mounted in the annular groove 1-1 of 1 inner circumferential of shell；
Referring to Fig. 2, the mounting plate component 2 includes front mounting plate 2-1, rear mounting plate 2-2 and grommet 2-3, preceding installation
Plate 2-1 and rear mounting plate 2-2 is fixed by swivel nut 6 and screw 7, and front mounting plate 2-1 and rear mounting plate 2-2 are in the upper and lower of swivel nut 6
Two sides are respectively equipped with the first positioning hole 2-1-1 and second location hole 2-2-1 of coaxial arrangement, in first positioning hole 2-1-1 and
Interference is equipped with short positioning pin 8 in two location hole 2-2-1, and in the front mounting plate 2-1 of the arranged on left and right sides of swivel nut 6 and rear peace
Be respectively equipped with inside loading board 2-2 multiple coaxial arrangements for installing the first vestibule 2-1-2 and the second vestibule for expanding contact
2-2-2, expands contact 3 and axially penetrates through and be mounted in the first vestibule 2-1-2 and the second vestibule 2-2-2；Grommet 2-3 passes through glue
Cementation is scheduled on rear mounting plate 2-2 tail end.
Referring to Fig. 3-4, the contact 3 that expands includes lens subassembly 3-1, ceramic insertion core 3-2, inner housing 3-3, spring 3-
4, outer housing 3-5；The inside of the inner housing 3-3 is equipped with the different stepped hole 3-3-1 of diameter, and the ceramic insertion core 3-2 passes through
Interference fit is mounted in the small diameter bore 3-3-1-1 of stepped hole, and lens subassembly 3-1 is mounted on the large diameter hole 3-3- of stepped hole
In 1-2, ceramic insertion core 3-2 is inserted into lens subassembly 3-1 and fixes, and spring 3-4 is sleeved on the periphery inner housing 3-3 and is placed in together outer
In the internal cavities 3-5-1 of the front end shell 3-5, the front end of inner housing 3-3 is equipped with positioning key 3-3-2 raised outward, shell
The front end of body 3-5 is equipped with opening 3-5-2, and positioning key 3-3-2 is placed in opening 3-5-2, and along axial shifting in opening 3-5-2
Dynamic, spring 3-4 stress is flexible to drive outer housing 3-5 reciprocally to slide in inner housing 3-3 peripheral, axial, the front end of outer housing 3-5
Face carries out shell nosing treatment, limits with opening 3-5-2 cooperation to the axial activity of positioning key 3-3-2.
The opening 3-5-2 is axial U-shaped structure, the radial width and the width phase of positioning key 3-3-2 of the 3-5-2 that is open
Adaptation, radial motion of the opening 3-5-2 limitation positioning key 3-3-2 in opening 3-5-2, the axial length for the 3-5-2 that is open are greater than
The length of positioning key 3-3-2, positioning key 3-3-2 can axially move in opening 3-5-2.
Referring to Fig.1, it is equipped with keyway 2-1-3 in the front mounting plate 2-1, expands contact 3 and passes through positioning key 3-3-2 and key
Slot 2-1-3 cooperation, will expand in the first vestibule 2-1-2 and the second vestibule 2-2-2 that contact 3 is fixed in mounting plate component 2,
Prevent from expanding the radial rotating of contact.
Referring to Fig. 5, the lens subassembly 3-1 includes self-focusing lens 3-1-1 and porcelain bushing 3-1-2, self-focusing lens
3-1-1 gluing is fixed on the front end inner circumferential inside porcelain bushing 3-1-2, and the front end face of self-focusing lens 3-1-1 and ceramics
There is spacing, porcelain bushing 3-1-2 clearance fit is mounted on the large diameter hole 3-3- of inner housing between the front end face of casing 3-1-2
It is coaxial with self-focusing lens 3-1-1 in the front end insertion porcelain bushing 3-1-2 of ceramic insertion core 3-2 in 1-2, and by adjusting
Position of the porcelain bushing 3-1-2 tail end in large diameter hole 3-3-1-2 makes the front end face of ceramic insertion core 3-2 be located at self-focusing lens
On the focal position of 3-1-1, reduce loss, the abrasion being also possible to prevent between end face.
The self-focusing lens 3-1-1 is cylindrical structure.
The porcelain bushing 3-1-2 is the silent casing of ceramics.
Referring to figure 6 and figure 7, the present embodiment shares 6 and expands contact 3, is evenly distributed in the arranged on left and right sides of swivel nut 6, right
When connecing, location hole can play the role of accurate positioning, and can reduce the opposite fortune that contact is expanded under vibration, impact condition
It is dynamic, to improve reliability and the service life of connector.
The cooperation that contact passes through positioning key and opening is expanded, and is cooperated with the keyway of front mounting plate, realization prevents from expanding
The radial rotating of beam contact, docking is accurate, and loss lower region can be each attached on a direction, reduce loss.And
The interior setting spring of contact, the contact of connector meeting stress in docking, spring spring stress stretch including drive outer housing
Shell peripheral, axial is reciprocally slided, and can reduce contact stress, and the excessive contact of stress is prevented to be damaged；
Contact is expanded using self-focusing lens, beam-expanding collimation and convergence can be carried out to light beam, so as to increase light
Spot diameter avoids and the phenomenon that fibercuts occurs because of optical fiber protrusion, can effectively avoid the damage of optical fiber, optical fiber can not
It is contacted with end face with end face, can be achieved with the transmission of optical signal, it is ensured that while optical signal excellent transmission, optical fiber also can be improved and connect
It is the service life of contact and optical fiber connector, not easy to pollute.
Highly reliable extending type optical fiber connector of the invention can be matched with the optical fiber connector of same-interface, setting
It is multiple expand contact, it can be achieved that multipath light signal transmission.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (5)
1. a kind of highly reliable extending type optical fiber connector, which is characterized in that the connector includes shell (1), mounting plate component
(2), contact (3), gasket (4), fixing clasp (5) are expanded；
The mounting plate component (2) is placed in shell (1) and is achieved a fixed connection by fixing clasp (5) with shell (1), is pacifying
The front end periphery of loading board component is set with gasket (4), and gasket (4) is mounted in the annular groove (1-1) of shell (1) inner circumferential；
The mounting plate component (2) includes front mounting plate (2-1), rear mounting plate (2-2) and grommet (2-3), front mounting plate (2-
1) and rear mounting plate (2-2) is fixed by swivel nut (6) and screw (7), and front mounting plate (2-1) and rear mounting plate (2-2) are in swivel nut
(6) upper and lower two sides are respectively equipped with the first positioning hole (2-1-1) and second location hole (2-2-1) of coaxial arrangement, fixed first
Position hole (2-1-1) and second location hole (2-2-1) interior interference is equipped with short positioning pin (8), and left and right the two of swivel nut (6)
Multiple coaxial arrangements are respectively equipped with inside the front mounting plate (2-1) and rear mounting plate (2-2) of side expands contact for installing
The first vestibule (2-1-2) and the second vestibule (2-2-2), expand contact (3) and axially penetrate through and be mounted on the first vestibule (2-1-2)
It is interior with the second vestibule (2-2-2)；Grommet (2-3) is fixed on rear mounting plate (2-2) tail end by gluing；
It is described expand contact (3) include lens subassembly (3-1), it is ceramic insertion core (3-2), inner housing (3-3), spring (3-4), outer
Shell (3-5)；The inside of the inner housing (3-3) is equipped with the different stepped hole (3-3-1) of diameter, the ceramic insertion core (3-2)
It is mounted in the small diameter bore (3-3-1-1) of stepped hole by interference fit, lens subassembly (3-1) is mounted on the big straight of stepped hole
In diameter hole (3-3-1-2), ceramic insertion core (3-2) is inserted into lens subassembly (3-1) and fixes, and spring (3-4) is sleeved on inner housing (3-
3) it periphery and is placed in the internal cavities (3-5-1) of the front end outer housing (3-5) together, the front end of inner housing (3-3) is equipped with outside
The front end of the positioning key (3-3-2) of side protrusion, outer housing (3-5) is equipped with opening (3-5-2), and positioning key (3-3-2) is placed in opening
It in (3-5-2), and is axially moveable in opening (3-5-2), spring (3-4) stress is flexible to drive outer housing (3-5) in inner casing
Body (3-3) peripheral, axial is reciprocally slided, and the front end face of outer housing (3-5) carries out shell nosing treatment, with opening (3-5-2) cooperation pair
The axial activity of positioning key (3-3-2) is limited.
2. a kind of highly reliable extending type optical fiber connector as described in claim 1, which is characterized in that the opening (3-5-2)
Radial width for axial U-shaped structure, opening (3-5-2) is adapted with the width of positioning key (3-3-2), is open (3-5-2)
The radial motion of positioning key (3-3-2) in opening (3-5-2) is limited, the axial length of opening (3-5-2) is greater than positioning key (3-
Length 3-2), positioning key (3-3-2) can axially move in opening (3-5-2).
3. a kind of highly reliable extending type optical fiber connector as described in claim 1, which is characterized in that the front mounting plate (2-
1) it is equipped with keyway (2-1-3) in, contact (3) is expanded and is cooperated by positioning key (3-3-2) and keyway (2-1-3), connect expanding
Contact element (3) is fixed in the first vestibule (2-1-2) and the second vestibule (2-2-2) in mounting plate component (2), prevents from expanding contact
The radial rotating of part.
4. a kind of highly reliable extending type optical fiber connector as described in claim 1, which is characterized in that the lens subassembly (3-
It 1) include self-focusing lens (3-1-1) and porcelain bushing (3-1-2), self-focusing lens (3-1-1) gluing is fixed on porcelain bushing
(3-1-2) internal front end inner circumferential, and the front end face of the front end face of self-focusing lens (3-1-1) and porcelain bushing (3-1-2)
Between there is spacing, porcelain bushing (3-1-2) clearance fit is mounted in the large diameter hole (3-3-1-2) of inner housing, and ceramics are inserted
In front end insertion porcelain bushing (3-1-2) of core (3-2), coaxially with self-focusing lens (3-1-1), and by adjusting ceramic jacket
Managing position of (3-1-2) tail end in large diameter hole (3-3-1-2) makes the front end face of ceramic insertion core (3-2) be located at self-focusing lens
On the focal position of (3-1-1).
5. a kind of highly reliable extending type optical fiber connector as claimed in claim 4, which is characterized in that the self-focusing lens
(3-1-1) is cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191846.0A CN109839699B (en) | 2019-03-14 | 2019-03-14 | High-reliability beam-expanding type optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191846.0A CN109839699B (en) | 2019-03-14 | 2019-03-14 | High-reliability beam-expanding type optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109839699A true CN109839699A (en) | 2019-06-04 |
| CN109839699B CN109839699B (en) | 2023-11-14 |
Family
ID=66885684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910191846.0A Active CN109839699B (en) | 2019-03-14 | 2019-03-14 | High-reliability beam-expanding type optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109839699B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568564A (en) * | 2019-09-06 | 2019-12-13 | 沈阳兴华航空电器有限责任公司 | High-reliability air-tight seal beam-expanding type optical fiber adapter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5801980A (en) * | 1979-05-08 | 1980-11-13 | International Standard Electric Corp. | Hermaphroditic optical fibre connector |
| GB0607574D0 (en) * | 2006-04-18 | 2006-05-24 | Fibreco Ltd | Expanded beam optical fibre connector |
| US20120155807A1 (en) * | 2010-12-15 | 2012-06-21 | Innovative Intellectual Properties Llc | Expanded Beam Optical Connector |
| CN103149642A (en) * | 2013-03-22 | 2013-06-12 | 上海理工大学 | Off-axis optical fiber rotary connector |
| CN108535812A (en) * | 2018-05-28 | 2018-09-14 | 沈阳兴华航空电器有限责任公司 | A kind of optical fiber beam expansion type lens subassembly |
| CN109425939A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | Optic fibre switching socket, optic fibre switching contact and fiber optic connector assembly |
-
2019
- 2019-03-14 CN CN201910191846.0A patent/CN109839699B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5801980A (en) * | 1979-05-08 | 1980-11-13 | International Standard Electric Corp. | Hermaphroditic optical fibre connector |
| GB0607574D0 (en) * | 2006-04-18 | 2006-05-24 | Fibreco Ltd | Expanded beam optical fibre connector |
| US20120155807A1 (en) * | 2010-12-15 | 2012-06-21 | Innovative Intellectual Properties Llc | Expanded Beam Optical Connector |
| CN103149642A (en) * | 2013-03-22 | 2013-06-12 | 上海理工大学 | Off-axis optical fiber rotary connector |
| CN109425939A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | Optic fibre switching socket, optic fibre switching contact and fiber optic connector assembly |
| CN108535812A (en) * | 2018-05-28 | 2018-09-14 | 沈阳兴华航空电器有限责任公司 | A kind of optical fiber beam expansion type lens subassembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568564A (en) * | 2019-09-06 | 2019-12-13 | 沈阳兴华航空电器有限责任公司 | High-reliability air-tight seal beam-expanding type optical fiber adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109839699B (en) | 2023-11-14 |
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