CN106324768A - Optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly - Google Patents
Optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly Download PDFInfo
- Publication number
- CN106324768A CN106324768A CN201610964321.2A CN201610964321A CN106324768A CN 106324768 A CN106324768 A CN 106324768A CN 201610964321 A CN201610964321 A CN 201610964321A CN 106324768 A CN106324768 A CN 106324768A
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- China
- Prior art keywords
- optical fiber
- sleeve pipe
- contact
- sleeve
- lens
- Prior art date
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Classifications
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- 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
- G02B6/3853—Lens inside the ferrule
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to an optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly. The optical fiber beam expanding contact comprises lens and optical fiber contact pin, and also sleeve assembly. The sleeve assembly contains the sleeve connected by optical fiber contact pin. The front end cover is set at the front end of sleeve and the front clamping portion is provided in the front end cover. The rear clamping portion set relatively with the front clamping portion and used for cooperating with front clamping portion and clamping and fixing the lens is set on the sleeve. The optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly have solved the easy pollution for lens by gluing in current technology.
Description
Technical field
The present invention relates to the optical fiber beam expansion connector in optical signal transmission field and optical fiber beam expansion contact thereof and sleeve pipe group
Part.
Background technology
Optical fiber beam expansion connector is a kind of high-end novel optical fiber connector, it and the difference of the conventional contact joints of optical fibre
It is that its contact is the optical contact using optical lens.Optical lens can effectively expand the size of transmitting beam,
And optical signal can be transmitted under contactless state efficiently.
Existing optical fiber beam expansion connector such as Chinese patent CN201780391U disclosed " optical fiber beam expansion contact and use
The optical fiber beam expansion connector of this contact ", this optical fiber beam expansion connector includes optical fiber beam expansion contact, optical fiber beam expansion contact bag
Including sleeve pipe, the front end of sleeve pipe is bonded with the lens of cylindricality, and in sleeve pipe, the rear side in lens is bonded with optical fiber contact pins.Existing this
Optical fiber beam expansion contact there is a problem in that 1, due to the axial length of the lens of cylindricality longer, therefore it has enough
Bond area ensures bonding strength, and some other shapes of lens, such as do not had by packaged lens, convex lens etc. enough
Long axial length, is just connected unsuitable for bonding with sleeve pipe, it addition, bonding operation needs to use and arrives glue, careless slightly just
Lens contamination can be caused；2, optical fiber contact pins integral structure bonding with sleeve pipe, optical fiber contact pins cannot unloading, be not easy to follow-up dimension
Repair replacing.
Summary of the invention
It is an object of the invention to provide a kind of thimble assembly, to solve prior art to use adhesive means easily pollute
The problem of lens；The present invention also aims to provide a kind of optical fiber beam expansion contact using this thimble assembly and optical fiber beam expansion
Adapter.
In order to solve the problems referred to above, the technical scheme of middle sleeve assembly of the present invention is:
The thimble assembly of optical fiber beam expansion contact, including the sleeve pipe connected for corresponding optical fiber contact pins, the front end of sleeve pipe connects to be had
Front end sleeve, front end sleeve is provided with front clamp portion, on sleeve pipe arrange and front clamp portion be oppositely arranged for joining with front clamp portion
The rear clamping part closed and respective lens is gripped.
Front clamp portion is the location land for coordinating with the front end location at spherical surface of lens, location land and sleeve pipe coaxial line
Arranging, rear clamping part is made up of the segmental arc end face of the annular end face being arranged at described sleeve pipe front end or circumferentially spaced layout,
Annular end face or the axis extending perpendicularly to described sleeve pipe of segmental arc end face.
Front end sleeve plugs mutually with sleeve pipe, front end sleeve bonding with the grafting part of sleeve pipe be connected, screw thread be connected or interference
It is connected.
In the present invention, the technical scheme of optical fiber beam expansion contact is:
Optical fiber beam expansion contact, including lens and optical fiber contact pins, optical fiber beam expansion contact also includes thimble assembly, thimble assembly bag
Including the sleeve pipe connected for described optical fiber contact pins, the front end of sleeve pipe connects front end sleeve, and front end sleeve is provided with front clamp portion, sleeve pipe
The rear clamping described lens gripped for coordinating with front clamp portion that upper setting is oppositely arranged with front clamp portion
Portion.
Lens are the packaged lens with front end sphere and back plan, and front clamp portion is for the front end sphere with lens
The location land of location fit, location land is coaxially set with sleeve pipe, and rear clamping part is by the ring being arranged at described sleeve pipe front end
The segmental arc end face of shape end face or circumferentially spaced layout is constituted, annular end face or segmental arc end face extend perpendicularly to institute
State the axis of sleeve pipe.
Front end sleeve plugs mutually with sleeve pipe, front end sleeve bonding with the grafting part of sleeve pipe be connected, screw thread be connected or interference
It is connected.
Sleeve pipe includes sleeve body, the rear end of sleeve body have at least two circumferentially distributed can elastomeric radial
Elastic lobe, it is protruding that the contact pin body peripheral of optical fiber contact pins is provided with contact pin, and the protruding rear end of contact pin has block direction backwards
Contact pin stopping surface, elastic lobe is provided with for coordinating to prevent optical fiber contact pins from front to back with described contact pin stopping surface block
Sleeve pipe stopping surface by the abjection of described sleeve body rear end.
In sleeve body, the rear side in described lens is provided with sleeve pipe location division, and contact pin stopping surface is the most gradually court
The inclined-plane that contact pin body central line direction extends, sleeve pipe stopping surface is adaptive with described contact pin stopping surface to apply court to contact pin body
Front makes contact pin body front end withstand on described sleeve pipe location division to active force.
Described sleeve pipe location division is land structure, and the front end of contact pin body is that the centre bore location with described land structure is joined
The pyramidal structure closed.
In the present invention, the technical scheme of optical fiber beam expansion connector is:
Optical fiber beam expansion connector, including optical fiber beam expansion contact, optical fiber beam expansion contact includes lens and optical fiber contact pins, and optical fiber expands
Bundle contact also includes thimble assembly, and thimble assembly includes the sleeve pipe connected for described optical fiber contact pins, and the front end of sleeve pipe connects to be had
Front end sleeve, front end sleeve is provided with front clamp portion, on sleeve pipe arrange and front clamp portion be oppositely arranged for joining with front clamp portion
The rear clamping part closed and described lens are gripped.
Lens are the packaged lens with front end sphere and back plan, and front clamp portion is for the front end sphere with lens
The location land of location fit, location land is coaxially set with sleeve pipe, and rear clamping part is by the ring being arranged at described sleeve pipe front end
The segmental arc end face of shape end face or circumferentially spaced layout is constituted, annular end face or segmental arc end face extend perpendicularly to institute
State the axis of sleeve pipe.
Front end sleeve plugs mutually with sleeve pipe, front end sleeve bonding with the grafting part of sleeve pipe be connected, screw thread be connected or interference
It is connected.
Sleeve pipe includes sleeve body, the rear end of sleeve body have at least two circumferentially distributed can elastomeric radial
Elastic lobe, it is protruding that the contact pin body peripheral of optical fiber contact pins is provided with contact pin, and the protruding rear end of contact pin has block direction backwards
Contact pin stopping surface, elastic lobe is provided with for coordinating to prevent optical fiber contact pins from front to back with described contact pin stopping surface block
Sleeve pipe stopping surface by the abjection of described sleeve body rear end.
In sleeve body, the rear side in described lens is provided with sleeve pipe location division, and contact pin stopping surface is the most gradually court
The inclined-plane that contact pin body central line direction extends, sleeve pipe stopping surface is adaptive with described contact pin stopping surface to apply court to contact pin body
Front makes contact pin body front end withstand on described sleeve pipe location division to active force.
Described sleeve pipe location division is land structure, and the front end of contact pin body is that the centre bore location with described land structure is joined
The pyramidal structure closed.
The invention have the benefit that in the present invention, lens are clamped and fastened between sleeve pipe and front end sleeve, by clamping
Fixed form, be not required to make to stick with glue, it is to avoid the gluing problem that may pollute lens.
Further, location land coordinates with the front end location at spherical surface of lens, by annular end face or segmental arc end face
During the pressure of top, lens will adjust attitude automatically, it is ensured that lens and the axiality of sleeve pipe, for packaged lens, and positioning form
Simple and convenient.
Accompanying drawing explanation
Fig. 1 be optical fiber beam expansion connector in the present invention an embodiment in the structural representation of optical fiber beam expansion contact；
Fig. 2 is the axonometric chart of Fig. 1；
Fig. 3 be in Fig. 1 optical fiber contact pins and elastic lobe coordinate schematic diagram；
Fig. 4 is the structural representation of Fig. 1 middle sleeve；
Fig. 5 be in the present invention optical fiber beam expansion connector expand schematic diagram.
Detailed description of the invention
The enforcement of optical fiber beam expansion connector is such as shown in Fig. 1 ~ 5: includes connector shell (not shown) and is arranged at
Optical fiber beam expansion contact 20 in connector shell, optical fiber beam expansion contact 20 includes lens 16, has the light of contact pin body 13
Fine contact pin 10 and thimble assembly, thimble assembly includes front end sleeve and has the sleeve pipe 6 of sleeve body 5, and optical fiber contact pins is metal material
Matter, lens are fixed on the front end of sleeve body 5 by front end sleeve 2, and lens 16 are packaged lens, and packaged lens has front end sphere
17 and back plan 15, front end sleeve 2 is provided with front clamp portion, sleeve pipe is provided with that be oppositely arranged with front clamp portion, pass through
The rear clamping part coordinated with front clamp portion and fix lens-holding, front clamp portion is location land 1, and location land 1 surrounds
Unthreaded hole, location land for front end sphere 17 location fit of lens, rear clamping part be arranged at sleeve body 5 front end,
For the annular end face 3 with the back plan location fit of lens, the front end of sleeve body 5 is loaded on by force in front end sleeve 2, until set
The annular end face 3 of tube body withstands on the back plan 3 of lens 16, it is ensured that the centrage of sleeve body is crossed the centre of sphere of lens and hangs down
Straight in the back plan of lens.
The rear end of sleeve body 5 have six circumferentially distributed can the elastic lobe 7 of elastomeric radial, contact pin body 13
Being inserted from sleeve body 5 rear end by rear to front, the periphery of contact pin body is provided with contact pin projection 11, and contact pin protruding 11 is annular
Projection, the rear end of annular protrusion has block direction contact pin stopping surface 9 backwards, and contact pin stopping surface 9 is the most gradually court
The inclined-plane of the taper that contact pin body central line direction extends, elastic lobe 7 is provided with the holding tank for accommodating annular protrusion 11
8, the rear cell wall of holding tank 8 formed with contact pin stopping surface 9 adaptation prevent optical fiber slotting for coordinating with contact pin stopping surface block
The sleeve pipe stopping surface 18 that pin is deviate from by sleeve body rear end from front to back, sleeve pipe stopping surface 18 is also for the inclined-plane of taper.Sleeve pipe is originally
On body 5, the rear side in lens is provided with sleeve pipe location division, and sleeve pipe location division is land structure 14, the front end of contact pin body 13 be with
The pyramidal structure 4 of the centre bore location fit of land structure, because sleeve pipe stopping surface 18 and contact pin stopping surface 9 are the pass on inclined-plane
System, elastic lobe 7 can apply the active force in direction forward to contact pin body so that the pyramidal structure 4 of contact pin body front end and land
The centre bore location of structure 14 contacts, it is ensured that the position relationship between optical fiber contact pins 10 and lens 16, it is ensured that in optical fiber contact pins
Optical fiber couples with lens 16.The front end face 12 of annular protrusion is the most gradually to extend towards away from contact pin body central line direction
Ramp structure, the gradient of the front end face of annular protrusion is less than the gradient of contact pin stopping surface, so can be so that optical fiber contact pins
Insertion, the gradient of contact pin stopping surface is relatively big, makes withdrawal force be more than insertion force, it is ensured that product is reliable and stable.
During assembling, optical fiber contact pins by rear to the front endoporus being inserted into sleeve pipe, each bullet of front end face pushing tow of annular protrusion
Property lobe and make elastic lobe open, after annular protrusion submerges holding tank, elastic lobe resilience, the sleeve pipe stopping surface on elastic lobe is to inserting
Pin stopping surface presses, the active force to optical fiber contact pins applying one direction forward, it is ensured that conflict at sleeve pipe in the front end of optical fiber contact pins
On location division, it is ensured that the position relationship between optical fiber contact pins and lens, it is ensured that lens can couple with optical fiber contact pins.It specifically couples
Principle is as shown in Figure 5: Fig. 5 middle term 21 represents the adaptive optical fiber beam expansion contact adaptive with this optical fiber beam expansion contact, both it
Structure is identical, and light path realizes expanding after the lens of optical fiber beam expansion contact penetrate, and is then adapted optical fiber beam expansion contact
Lens pack, it is achieved the transmission of optical signal.When needs dismounting optical fiber contact pins, pull out optical fiber contact pins, contact pin stopping surface pushing tow backward
Sleeve pipe stopping surface makes each elastic lobe open, and can be taken out by optical fiber contact pins.In the present invention, the dismounting of optical fiber contact pins is the most more convenient, with
Time elasticity flap-type structure also will not increase the radial dimension of optical fiber beam expansion contact, it is ensured that optical fiber beam expansion contact can be normal
Use；Sleeve pipe stopping surface applies active force to contact pin stopping surface, it is ensured that the exact position of optical fiber contact pins, it is ensured that optical fiber is inserted
Optical fiber in pin and Lens Coupling.Annular end face and the axiality ensureing lens with sleeve pipe that coordinates positioning land, the most saturating
The diameter of mirror is not required to consistent with the internal diameter of front end sleeve, on the one hand reduces required precision between the two, additionally for packaged lens
For, needing the light centre of sphere through packaged lens of optical fiber, this just requires that packaged lens needs and sleeve pipe guarantee axiality, if
Using adhesive means to fix packaged lens, the cylindrical portion of packaged lens periphery is shorter, the position between packaged lens and front end sleeve
The relation of putting is difficult to ensure, occurs that the situation that side glue is thick, side glue is thin occurs the most unavoidably, and assembly precision is very difficult to protect
Card.In other embodiments of the invention: contact pin stopping surface and sleeve pipe stopping surface may not be the inclined-plane of taper, but plane
The inclined-plane of structure；The leading section of optical fiber contact pins can also be flush configuration；Contact pin stopping surface and sleeve pipe stopping surface can also the most not
It is ramp structure, such as contact pin stopping surface and sleeve pipe stopping surface are and are perpendicular to facing directly of fore-and-aft direction, now at dismounting light
During fine contact pin, need first to make each elastic lobe open by other instrument, then optical fiber contact pins is extracted；Front end sleeve can also pass through
Bonding or threaded form is connected on sleeve pipe；The number of elastic lobe can be configured as required, for example, two, three
Individual or other number；Contact pin projection may not be annular protrusion, such as the protruding circumferentially spaced layout of contact pin, contact pin is protruding
Number corresponding with the number of elastic lobe, feather key, guide key groove structure now can be set between optical fiber contact pins and sleeve pipe,
Ensure the circumferential angular relationship between optical fiber contact pins and sleeve pipe, thus ensure that each contact pin projection all can be joined with corresponding elasticity lobe
Close；Optical fiber contact pins can also ceramic material；Annular end face may not be continuous print, such as between the front end edge circumference of sleeve pipe
Every being disposed with multiple segmental arc, the end face of segmental arc is perpendicular to the axis of sleeve pipe, saturating by the segmental arc end face pushing tow of segmental arc
The back plan of mirror；Lens can also be convex lens, cylindrical lens etc., when lens are cylindrical lens, and the external diameter of cylindrical lens
Can be consistent with the internal diameter of front end sleeve, now, forward and backward clamping part can be simple stop block structure, as long as be capable of right
Fixing of lens.
The enforcement of optical fiber beam expansion contact is such as shown in Fig. 1 ~ 5: the concrete structure of optical fiber beam expansion contact and above-mentioned each light
Optical fiber beam expansion contact described in fine beam expansion connector embodiment is identical, is not described in detail in this.
The enforcement of thimble assembly is such as shown in Fig. 1 ~ 5: the concrete structure of thimble assembly and above-mentioned each optical fiber beam expansion connector
Thimble assembly described in embodiment is identical, is not described in detail in this.
Claims (10)
1. the thimble assembly of optical fiber beam expansion contact, it is characterised in that: include the sleeve pipe connected for corresponding optical fiber contact pins, sleeve pipe
Front end connect have front end sleeve, front end sleeve is provided with front clamp portion, on sleeve pipe arrange and front clamp portion be oppositely arranged for
The rear clamping part coordinated with front clamp portion and respective lens is gripped.
Thimble assembly the most according to claim 1, it is characterised in that: front clamp portion is fixed for the front end sphere with lens
The location land that position coordinates, location land is coaxially set with sleeve pipe, and rear clamping part is by the annular being arranged at described sleeve pipe front end
Extending perpendicularly to of the segmental arc end face composition of end face or circumferentially spaced layout, annular end face or segmental arc end face is described
The axis of sleeve pipe.
Thimble assembly the most according to claim 1 and 2, it is characterised in that: front end sleeve plugs mutually with sleeve pipe, front end sleeve with
The grafting part of sleeve pipe is bonding to be connected, screw thread is connected or interference is connected.
4. optical fiber beam expansion contact, including lens and optical fiber contact pins, it is characterised in that: optical fiber beam expansion contact also includes sleeve pipe group
Part, thimble assembly includes the sleeve pipe connected for described optical fiber contact pins, and the front end of sleeve pipe connects front end sleeve, and front end sleeve is provided with
Front clamp portion, sleeve pipe arranges clamping described lens for coordinating with front clamp portion of being oppositely arranged with front clamp portion
Fixing rear clamping part.
Optical fiber beam expansion contact the most according to claim 4, it is characterised in that: lens for have front end sphere and after hold level with both hands
The packaged lens in face, front clamp portion is the location land for coordinating with the front end location at spherical surface of lens, location land and sleeve pipe
Being coaxially set, rear clamping part is by the segmental arc end face of the annular end face or circumferentially spaced layout being arranged at described sleeve pipe front end
Constitute, annular end face or the axis extending perpendicularly to described sleeve pipe of segmental arc end face.
Optical fiber beam expansion contact the most according to claim 4, it is characterised in that: front end sleeve plugs mutually with sleeve pipe, front end
Overlap bonding with the grafting part of sleeve pipe be connected, screw thread be connected or interference be connected.
7. according to the optical fiber beam expansion contact described in claim 4 ~ 6 any one, it is characterised in that: sleeve pipe includes that sleeve pipe is originally
Body, the rear end of sleeve body have at least two circumferentially distributed can the elastic lobe of elastomeric radial, inserting of optical fiber contact pins
It is protruding that pin body peripheral is provided with contact pin, and the rear end of contact pin projection has block direction contact pin stopping surface backwards, on elastic lobe
It is provided with for coordinating to prevent optical fiber contact pins from being taken off by described sleeve body rear end from front to back with described contact pin stopping surface block
The sleeve pipe stopping surface gone out.
Optical fiber beam expansion contact the most according to claim 7, it is characterised in that: in the rear side of described lens in sleeve body
Being provided with sleeve pipe location division, contact pin stopping surface is the inclined-plane the most gradually extended towards contact pin body central line direction, sleeve pipe
Stopping surface and described contact pin stopping surface adaptive with to contact pin body apply forward direction active force and make contact pin body front end withstand on
On described sleeve pipe location division.
Optical fiber beam expansion contact the most according to claim 8, it is characterised in that: described sleeve pipe location division is land structure,
The front end of contact pin body is the pyramidal structure of the centre bore location fit with described land structure.
10. optical fiber beam expansion connector, it is characterised in that: include the optical fiber beam expansion contact as described in claim 4 ~ 9 any one
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964321.2A CN106324768B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact and sheath assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964321.2A CN106324768B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact and sheath assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324768A true CN106324768A (en) | 2017-01-11 |
| CN106324768B CN106324768B (en) | 2019-07-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610964321.2A Active CN106324768B (en) | 2016-10-28 | 2016-10-28 | Optical fiber beam expansion connector and its optical fiber beam expansion contact and sheath assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN106324768B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109932781A (en) * | 2017-12-19 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
| CN110820937A (en) * | 2019-10-18 | 2020-02-21 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Light steel structure connecting structure and connecting method thereof |
| US20220163735A1 (en) * | 2018-10-16 | 2022-05-26 | Senko Advanced Components, Inc. | Springless retention structure for an ingress protected hybrid connector assembly |
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| US5231684A (en) * | 1992-06-22 | 1993-07-27 | Pdt Systems | Optical fiber microlens |
| US5579423A (en) * | 1994-08-03 | 1996-11-26 | Lederle (Japan), Ltd. | Optical fiber laser device |
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| CN103698853A (en) * | 2012-09-27 | 2014-04-02 | 欧姆龙株式会社 | Optical fiber head |
| CN105425344A (en) * | 2015-11-23 | 2016-03-23 | 中航光电科技股份有限公司 | Fiber terminal and connector |
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| JPS60108812A (en) * | 1983-11-18 | 1985-06-14 | Matsushita Electric Ind Co Ltd | Optical fiber cable |
| US4807958A (en) * | 1986-05-19 | 1989-02-28 | Societa' Cavi Pirelli S.P.A. | Method of interconnecting optical fiber cables and connector therefor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932781A (en) * | 2017-12-19 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
| 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 |
| US20220163735A1 (en) * | 2018-10-16 | 2022-05-26 | Senko Advanced Components, Inc. | Springless retention structure for an ingress protected hybrid connector assembly |
| CN110820937A (en) * | 2019-10-18 | 2020-02-21 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Light steel structure connecting structure and connecting method thereof |
| CN110820937B (en) * | 2019-10-18 | 2021-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Light steel structure connecting structure and connecting method thereof |
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| Publication number | Publication date |
|---|---|
| CN106324768B (en) | 2019-07-26 |
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