CN106324768B - Optical fiber beam expansion connector and its optical fiber beam expansion contact and sheath assembly - Google Patents
Optical fiber beam expansion connector and its optical fiber beam expansion contact and sheath assembly Download PDFInfo
- Publication number
- CN106324768B CN106324768B CN201610964321.2A CN201610964321A CN106324768B CN 106324768 B CN106324768 B CN 106324768B CN 201610964321 A CN201610964321 A CN 201610964321A CN 106324768 B CN106324768 B CN 106324768B
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- China
- Prior art keywords
- optical fiber
- casing
- contact pin
- lens
- 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.)
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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
Abstract
The present invention relates to optical fiber beam expansion connector and its optical fiber beam expansion contacts and sheath assembly, optical fiber beam expansion contact includes lens and optical fiber contact pins, optical fiber beam expansion contact further includes sheath assembly, sheath assembly includes the casing for optical fiber contact pins connection, the front end of casing is connected with front end sleeve, front clamp portion, the rear clamping part gripped for cooperating with front clamp portion to the lens that setting is oppositely arranged with front clamp portion on casing are provided on front end sleeve.The present invention solves the problems, such as to be easy pollution lens using adhesive means in the prior art.
Description
Technical field
The present invention relates to the optical fiber beam expansion connectors and its optical fiber beam expansion contact and casing group in optical signal transmission field
Part.
Background technique
Optical fiber beam expansion connector is a kind of high-end novel optical fiber connector, the difference of it and conventional contact optical fiber connector
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 efficiently transmitted under contactless state.
Existing optical fiber beam expansion connector " optical fiber beam expansion contact and use as disclosed in Chinese patent CN201780391U
The optical fiber beam expansion connector of the contact ", the optical fiber beam expansion connector include optical fiber beam expansion contact, optical fiber beam expansion contact packet
Casing is included, the front end of casing is bonded with cylindrical lens, is bonded with optical fiber contact pins on rear side of lens in casing.It is existing this
Optical fiber beam expansion contact has problems in that: 1, since the axial length of cylindrical lens is longer, with enough
Bond area guarantees bonding strength, and some other shapes of lens, for example is not had by packaged lens, convex lens etc. enough
Long axial length, just it is unsuitable it is Nian Jie with casing be connected, in addition, bonding, which operates needs, uses glue, it is careless slightly just
It will cause lens contamination；2, optical fiber contact pins integral structure Nian Jie with casing, optical fiber contact pins can not unloading, be not easy to subsequent dimension
Repair replacement.
Summary of the invention
The purpose of the present invention is to provide a kind of sheath assemblies, to solve to be easy pollution using adhesive means in the prior art
The problem of lens；The object of the invention is also to provide a kind of optical fiber beam expansion contacts and optical fiber beam expansion using the sheath assembly
Connector.
To solve the above-mentioned problems, the technical solution of middle sleeve component of the present invention are as follows:
The sheath assembly of optical fiber beam expansion contact, including the casing connected for corresponding optical fiber contact pins, the front end of casing connects
It is connected to front end sleeve, is provided with front clamp portion on front end sleeve, what setting and front clamp portion were oppositely arranged on casing be used for and front clamp
Portion cooperates and the rear clamping part that is gripped to respective lens.
Front clamp portion is for the positioning land with the cooperation of the front end location at spherical surface of lens, positioning land and casing coaxial line
Setting, rear clamping part are made of the annular end face or the segmental arc end face of circumferentially spaced arrangement for being set to described sleeve pipe front end,
Annular end face or the axis for extending perpendicularly to described sleeve pipe of segmental arc end face.
Front end sleeve is mutually plugged with casing, and front end sleeve connected, screw thread Nian Jie with the grafting part of casing is connected or interference
It is connected.
The technical solution of optical fiber beam expansion contact in the present invention are as follows:
Optical fiber beam expansion contact, including lens and optical fiber contact pins, optical fiber beam expansion contact further include sheath assembly, casing group
Part includes the casing for optical fiber contact pins connection, and the front end of casing is connected with front end sleeve, front clamp portion is provided on front end sleeve,
After what setting and front clamp portion were oppositely arranged on casing grips the lens for cooperating with front clamp portion
Clamping part.
Lens are the packaged lens with front end spherical surface and back plan, and front clamp portion is for the front end spherical surface with lens
The positioning land of location fit, positioning land are coaxially set with casing, and rear clamping part is by being set to the ring of described sleeve pipe front end
Shape end face or the segmental arc end face of circumferentially spaced arrangement composition, annular end face or segmental arc end face extend perpendicularly to institute
State the axis of casing.
Front end sleeve is mutually plugged with casing, and front end sleeve connected, screw thread Nian Jie with the grafting part of casing is connected or interference
It is connected.
Casing includes sleeve body, the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial
Elastic valve, the contact pin body peripheral of optical fiber contact pins is provided with contact pin protrusion, the rear end of contact pin protrusion with block direction backwards
Contact pin stopping surface, be provided on elastic valve for cooperating with the contact pin stopping surface block to prevent optical fiber contact pins from front to back
The casing stopping surface deviate from by described sleeve pipe ontology rear end.
It is provided with casing positioning region in sleeve body on rear side of the lens, contact pin stopping surface is gradually court from front to back
The inclined-plane that contact pin body central line direction extends, casing stopping surface are adapted to apply court to contact pin ontology with the contact pin stopping surface
Front direction active force and withstand on contact pin ontology front end on described sleeve pipe positioning region.
Described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is to match with the positioning of the centre bore of the land structure
The pyramidal structure of conjunction.
The technical solution of optical fiber beam expansion connector in the present invention are as follows:
Optical fiber beam expansion connector, including optical fiber beam expansion contact, optical fiber beam expansion contact include lens and optical fiber contact pins, light
It further includes sheath assembly that fibre, which expands contact, and sheath assembly includes the casing for optical fiber contact pins connection, and the front end of casing connects
It is connected to front end sleeve, is provided with front clamp portion on front end sleeve, what setting and front clamp portion were oppositely arranged on casing be used for and front clamp
Portion cooperates and the rear clamping part that is gripped to the lens.
Lens are the packaged lens with front end spherical surface and back plan, and front clamp portion is for the front end spherical surface with lens
The positioning land of location fit, positioning land are coaxially set with casing, and rear clamping part is by being set to the ring of described sleeve pipe front end
Shape end face or the segmental arc end face of circumferentially spaced arrangement composition, annular end face or segmental arc end face extend perpendicularly to institute
State the axis of casing.
Front end sleeve is mutually plugged with casing, and front end sleeve connected, screw thread Nian Jie with the grafting part of casing is connected or interference
It is connected.
Casing includes sleeve body, the rear end of sleeve body have at least two it is circumferentially distributed can elastomeric radial
Elastic valve, the contact pin body peripheral of optical fiber contact pins is provided with contact pin protrusion, the rear end of contact pin protrusion with block direction backwards
Contact pin stopping surface, be provided on elastic valve for cooperating with the contact pin stopping surface block to prevent optical fiber contact pins from front to back
The casing stopping surface deviate from by described sleeve pipe ontology rear end.
It is provided with casing positioning region in sleeve body on rear side of the lens, contact pin stopping surface is gradually court from front to back
The inclined-plane that contact pin body central line direction extends, casing stopping surface are adapted to apply court to contact pin ontology with the contact pin stopping surface
Front direction active force and withstand on contact pin ontology front end on described sleeve pipe positioning region.
Described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is to match with the positioning of the centre bore of the land structure
The pyramidal structure of conjunction.
The invention has the benefit that lens are clamped and fastened between casing and front end sleeve in the present invention, pass through clamping
Fixed form is without the use of gluing, avoids the problem of gluing may pollute lens.
Further, the front end location at spherical surface for positioning land and lens cooperates, by annular end face or segmental arc end face
When press, lens will adjust automatically posture, guarantee lens and casing concentricity, for packaged lens, positioning form
It is simple and convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical fiber beam expansion contact in one embodiment of optical fiber beam expansion connector in the present invention；
Fig. 2 is the perspective view of Fig. 1；
Fig. 3 is the cooperation schematic diagram of optical fiber contact pins and elastic valve in Fig. 1；
Fig. 4 is the structural schematic diagram of Fig. 1 middle sleeve；
Fig. 5 is that optical fiber beam expansion connector expands schematic diagram in the present invention.
Specific embodiment
The implementation of optical fiber beam expansion connector is for example shown in Fig. 1 ~ 5: including connector shell (not shown) and being set to
Optical fiber beam expansion contact 20 in connector shell, optical fiber beam expansion contact 20 include lens 16, the light with contact pin ontology 13
Fine contact pin 10 and sheath assembly, sheath assembly include front end sleeve and the casing 6 with sleeve body 5, and optical fiber contact pins are 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 have front end spherical surface
17 and back plan 15, be provided with front clamp portion on front end sleeve 2, be provided on casing it is being oppositely arranged with front clamp portion, pass through
Cooperate and the rear clamping part fixed to lens-holding with front clamp portion, front clamp portion is positioning land 1, and positioning land 1 surrounds
Unthreaded hole, positioning land for 17 location fit of front end spherical surface with lens, rear clamping part be set to 5 front end of sleeve body,
For the annular end face 3 of the back plan location fit with 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 is withstood on the back plan 3 of lens 16, guarantees that the center line of sleeve body crosses the centre of sphere of lens and hangs down
Directly in the back plan of lens.
The rear end tool of sleeve body 5 there are six it is circumferentially distributed can elastomeric radial elastic valve 7, contact pin ontology 13
5 rear end of slave sleeve body insertion from back to front, the periphery of contact pin ontology are provided with contact pin protrusion 11, and contact pin protrusion 11 is annular
Protrusion, the rear end of annular protrusion have the contact pin stopping surface 9 of block direction backwards, and contact pin stopping surface 9 is gradually court from front to back
The inclined-plane for the taper that contact pin body central line direction extends is provided with the holding tank for accommodating annular protrusion 11 on elastic valve 7
8, what the rear cell wall formation of holding tank 8 was adapted to contact pin stopping surface 9 is used to cooperate with contact pin stopping surface block to prevent optical fiber from inserting
The casing stopping surface 18 that needle is deviate from by sleeve body rear end from front to back, casing stopping surface 18 are also the inclined-plane of taper.Casing sheet
Be provided with casing positioning region on body 5 on rear side of lens, casing positioning region is land structure 14, the front end of contact pin ontology 13 be with
The pyramidal structure 4 of the centre bore location fit of land structure, because casing stopping surface 18 and contact pin stopping surface 9 are the pass on inclined-plane
System, elastic valve 7 can apply the active force in direction facing forward to contact pin ontology, so that the pyramidal structure 4 and land of contact pin ontology front end
The centre bore positioning of structure 14 contacts, and guarantees the positional relationship between optical fiber contact pins 10 and lens 16, it is ensured that in optical fiber contact pins
Optical fiber is coupled with lens 16.The front end face 12 of annular protrusion is gradually to extend from front to back towards far from contact pin body central line direction
Bevel structure, the gradient of the front end face of annular protrusion is less than the gradient of contact pin stopping surface, in this way can be in order to optical fiber contact pins
Insertion, the gradient of contact pin stopping surface is larger, make withdrawal force be greater than insertion force, guarantee product it is reliable and stable.
When assembly, optical fiber contact pins being inserted into the inner hole of casing from back to front, each bullet of front end face pushing tow of annular protrusion
Property valve and open elastic valve, after annular protrusion submerges holding tank, elastic valve rebound, casing stopping surface on elastic valve is to inserting
Optical fiber contact pins are applied the active force in a direction facing forward by needle stopping surface pressure, guarantee that the front end of optical fiber contact pins is contradicted in casing
On positioning region, guarantee the positional relationship between optical fiber contact pins and lens, guarantees that lens can be coupled with optical fiber contact pins.It is specifically coupled
Principle is as shown in Figure 5: Fig. 5 middle term 21 indicates the adaptation optical fiber beam expansion contact being adapted to the optical fiber beam expansion contact, the two
Structure is identical, and optical path is realized after the lens of optical fiber beam expansion contact project and expanded, and is then adapted optical fiber beam expansion contact
Lens pack realizes the transmission of optical signal.When needing to dismantle optical fiber contact pins, optical fiber contact pins, contact pin stopping surface pushing tow are pulled out backward
Casing stopping surface opens each elastic valve, can take out optical fiber contact pins.The dismounting of optical fiber contact pins is all more convenient in the present invention, together
When elasticity flap-type structure will not increase the radial dimension of optical fiber beam expansion contact, guarantee that optical fiber beam expansion contact can be normal
Use；Casing 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 and Lens Coupling in needle.The concentricity of annular end face and positioning land cooperated to guarantee lens and casing, it is saturating in this way
The diameter of mirror is not required to, on the one hand reduction required precision between the two, in addition for packaged lens consistent with the internal diameter of front end sleeve
For, the centre of sphere of the light of optical fiber Jing Guo packaged lens is needed, this requires packaged lens to need to guarantee concentricity with casing, if
Packaged lens are fixed using adhesive means, the cylindrical portion of packaged lens periphery is shorter, the position between packaged lens and front end sleeve
The relationship of setting is not easy to guarantee the situation that side glue is thick, side glue is thin in addition also inevitably occur and occur, assembly precision is very difficult to protect
Card.In other embodiments of the invention: contact pin stopping surface and casing stopping surface may not be the inclined-plane of taper, but plane
The inclined-plane of structure；The front end of optical fiber contact pins is also possible to flush configuration；Contact pin stopping surface and casing stopping surface can also not
It is bevel structure, such as contact pin stopping surface and casing stopping surface are to dismantle light at this time perpendicular to facing directly in the front-back direction
When fine contact pin, need to open each elastic valve, then optical fiber contact pins are extracted；Front end sleeve can also pass through
Bonding or threaded form are connected on casing；The number of elastic valve, which can according to need, to be configured, such as two, three
A or other numbers；Contact pin protrusion may not be annular protrusion, such as the circumferentially spaced arrangement of contact pin protrusion, contact pin are raised
Number it is corresponding with the elastic number of valve, feather key, guide key groove structure can be set between optical fiber contact pins and casing at this time,
Guarantee the circumferential angular relationship between optical fiber contact pins and casing, to guarantee that each contact pin protrusion can match with corresponding elastic valve
It closes；Optical fiber contact pins can also be with ceramic material；Annular end face may not be continuously, for example, the front end of casing circumferentially between
Every being disposed with multiple arcs section, the end face of segmental arc perpendicular to casing axis, it is 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, the outer diameter of cylindrical lens
Can be consistent with the internal diameter of front end sleeve, at this point, forward and backward clamping part can be simple stop block structure, as long as can be realized pair
The fixation of lens.
The implementation of optical fiber beam expansion contact is for example shown in Fig. 1 ~ 5: the specific structure of optical fiber beam expansion contact and above-mentioned each light
Fine beam expansion connector optical fiber beam expansion contact as described in the examples is identical, and this will not be detailed here.
The implementation of sheath assembly is for example shown in Fig. 1 ~ 5: the specific structure of sheath assembly and above-mentioned each optical fiber beam expansion connector
Sheath assembly as described in the examples is identical, and this will not be detailed here.
Claims (4)
1. optical fiber beam expansion contact, including lens and optical fiber contact pins, it is characterised in that: optical fiber beam expansion contact further includes casing group
Part, sheath assembly include the casing for optical fiber contact pins connection, and the front end of casing is connected with front end sleeve, is provided on front end sleeve
Front clamp portion, on casing setting and front clamp portion be oppositely arranged for being clamped with the cooperation of front clamp portion to the lens
Fixed rear clamping part；Casing includes sleeve body, the rear end of sleeve body have at least two it is circumferentially distributed can be radial
The elastic valve of flexible deformation, the contact pin body peripheral of optical fiber contact pins are provided with contact pin protrusion, and the rear end of contact pin protrusion has block
The contact pin stopping surface of direction backwards, contact pin protrusion are annular protrusion, and the receiving for accommodating annular protrusion is provided on elastic valve
Slot, what the rear cell wall formation of holding tank was adapted to contact pin stopping surface is used to cooperate with contact pin stopping surface block to prevent optical fiber contact pins
The casing stopping surface deviate from from front to back by sleeve body rear end, casing stopping surface are the inclined-plane of taper；In institute in sleeve body
It states and is provided with casing positioning region on rear side of lens, contact pin stopping surface is gradually to extend from front to back towards contact pin body central line direction
Inclined-plane, described sleeve pipe positioning region is land structure, and the front end of contact pin ontology is to match with the positioning of the centre bore of the land structure
The pyramidal structure of conjunction, because casing stopping surface and contact pin stopping surface are oblique relation of plane, elastic valve can apply contact pin ontology
The active force in direction facing forward guarantees light so that the pyramidal structure of contact pin ontology front end is contacted with the positioning of the centre bore of land structure
Positional relationship between fine contact pin and lens, it is ensured that optical fiber and Lens Coupling in optical fiber contact pins, the front end face of annular protrusion are
It is gradually distance from the bevel structure of contact pin body central line direction extension from the front to the back, the gradient of the front end face of annular protrusion, which is less than, inserts
The gradient of needle stopping surface.
2. optical fiber beam expansion contact according to claim 1, it is characterised in that: lens are to hold level with both hands with after with front end spherical surface
The packaged lens in face, front clamp portion are to position land and casing for the positioning land with the cooperation of the front end location at spherical surface of lens
It is coaxially set, rear clamping part is by being set to the annular end face of described sleeve pipe front end or the segmental arc end face of circumferentially spaced arrangement
It constitutes, the axis for extending perpendicularly to described sleeve pipe of annular end face or segmental arc end face.
3. optical fiber beam expansion contact according to claim 1, it is characterised in that: front end sleeve is mutually plugged with casing, front end
Set connected, screw thread Nian Jie with the grafting part of casing is connected or interference is connected.
4. optical fiber beam expansion connector, it is characterised in that: contacted including optical fiber beam expansion as claimed in any one of claims 1-3
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 CN106324768A (en) | 2017-01-11 |
| CN106324768B true CN106324768B (en) | 2019-07-26 |
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| 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 |
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| CN (1) | CN106324768B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11789217B2 (en) * | 2018-10-16 | 2023-10-17 | Senko Advanced Components, Inc | Springless retention structure for an ingress protected hybrid connector assembly |
Families Citing this family (3)
| 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 |
| 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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| US5579423A (en) * | 1994-08-03 | 1996-11-26 | Lederle (Japan), Ltd. | Optical fiber laser device |
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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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11789217B2 (en) * | 2018-10-16 | 2023-10-17 | Senko Advanced Components, Inc | Springless retention structure for an ingress protected hybrid connector assembly |
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| Publication number | Publication date |
|---|---|
| CN106324768A (en) | 2017-01-11 |
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