CN105425345A - Sealed optical fiber connector - Google Patents
Sealed optical fiber connector Download PDFInfo
- Publication number
- CN105425345A CN105425345A CN201510814313.5A CN201510814313A CN105425345A CN 105425345 A CN105425345 A CN 105425345A CN 201510814313 A CN201510814313 A CN 201510814313A CN 105425345 A CN105425345 A CN 105425345A
- Authority
- CN
- China
- Prior art keywords
- contact element
- housing
- optical fiber
- fiber connector
- middle casing
- 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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
- G02B6/3831—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape comprising a keying element on the plug or adapter, e.g. to forbid wrong connection
-
- 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
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to a sealed optical fiber connector comprising optical contact elements and a housing. Mounting holes extending from the left to right are formed in the housing; and the optical contact elements are assembled into the mounting holes in a guiding moving mode along the left-right direction. A left blocking structure for limiting the optical contact elements to a limit for left movement is arranged on the housing. An optical fiber penetrates the mounting holes and includes a sealing segment cooperating with the mounting holes by a sealing structure and a bendable segment that is located at the left side of the sealing segment and is connected with the optical contact elements and can be bent under the acting force towards the right. Besides, a right blocking structure that is used for limiting the optical contact elements to a limit for right movement is arranged on the housing. The provided sealed optical fiber connector not only can be sealed but also can float axially.
Description
Technical field
The present invention relates to a kind of hermetic fiber connector.
Background technology
When needing to introduce light signal to the casing of sealing or when outwards drawing light signal by casing, need to arrange breakout box connector on casing, to ensure the sealed environment of casing.Existing adaptor connector is as shown in Figure 1: comprise housing 2, housing 2 is provided with the mounting hole extended in left-right direction, in mounting hole, is provided with light contact element 1, by sealant pouring and sealing 3 between light contact element 1 and mounting hole, during use, housing seal is installed on casing.Existing this adaptor connector Problems existing is: although sealant pouring and sealing ensure that gas is not revealed, but also contact element loses float function, and fiber alignment precision is micron even sub-micrometer precision, current housing processing and assembly precision do not reach requirement completely, cause adaptor connector with intermateable connector to time slotting, the insertion loss of connector problem bigger than normal will inevitably be caused.
Summary of the invention
The object of the invention is to a kind of can to seal and can the hermetic fiber connector of axial float.
In order to solve the problem, technical scheme of the present invention is:,
Hermetic fiber connector, comprise light contact element and housing, housing is provided with the mounting hole extended in left-right direction, light contact element in left-right direction guiding movement is assemblied in described mounting hole, housing is provided with restriction light contact element towards the left Stop structure moving left the limit, optical fiber is coated with in mounting hole, optical fiber have the seal section that is sealed and matched by hermetically-sealed construction and mounting hole be positioned on the left of seal section be connected with described smooth contact element and when being subject to right direction acting force flexible bendable tune, housing is also provided with the right Stop structure of restriction light contact element towards the limit that moves right.
Light contact element has multiple, each smooth contact element is divided into spaced along the vertical direction at least two light contact element groups, each smooth contact element group includes at least two described smooth contact elements, and each smooth contact element in each smooth contact element group is connected together by connector and forms a MT contact pin.
Described housing comprises shell body and inner housing, shell body is provided with the syndeton for being connected with intermateable connector, inner housing comprises middle casing and the support column be arranged on the left of middle casing and guide housings, middle casing, support column and guide housings split are arranged, described hermetically-sealed construction is arranged on described middle casing, support column is provided with the optical fiber passed through along the vertical direction for optical fiber and wears groove, right Stop structure is arranged on described support column, light contact element guiding movement is assemblied on described guide housings, and left Stop structure is arranged on described guide housings.
Described right Stop structure is made up of the left side of described support column.
Support column is fixed on described middle casing by the lock-screw on axis edge in left-right direction.
The register pin that on middle casing, eccentric setting has axis to extend in left-right direction, guide housings is provided with the pilot hole with register pin location fit.
Inner housing, shell body split are arranged, and inner housing is assemblied in the endoporus of shell body by O-ring seal sealing.
Beneficial effect of the present invention is: at the sealing joints of optical fibre and intermateable connector to time slotting, light contact element can be subject to the right to slotting power, the bendable tune of optical fiber bends to adapt to moving right of light contact element, light contact element ensures signal transmission quality by floating, reduce insertion loss, the hermetically-sealed construction simultaneously between optical fiber and housing can also ensure sealing property.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technology of the present invention;
Fig. 2 is the structural representation of one embodiment of the present of invention;
Fig. 3 is the structural representation of inner housing in Fig. 2;
Fig. 4 is the structural representation of Fig. 2 China and foreign countries housing;
Fig. 5 is the exploded view of Fig. 3;
Fig. 6 is the assembling process schematic diagram of support column in Fig. 2.
Embodiment
The embodiment of hermetic fiber connector is as shown in Fig. 2 ~ 6: comprise light contact element 17 and housing, light contact element has multiple and is positioned at the two ends of housing, the light contact element of every one end is divided into spaced along the vertical direction four light contact element groups, each smooth contact element group includes 12 light contact elements, each smooth contact element in each smooth contact element group is linked together by connector and forms a MT contact pin 7, the MT contact pin one_to_one corresponding kept right in the MT contact pin that position keeps left and position is arranged, and passes through Fiber connection between two corresponding MT contact pins.Housing comprises shell body 4 and inner housing, shell body 4 is provided with joint flange 2 and the syndeton for being connected with intermateable connector, syndeton comprises the external thread 1 and internal thread 6 that are arranged at shell body two ends, joint flange 2 is provided with the shell body O-ring seal 3 for being sealed and matched with corresponding casing, inner housing and shell body 4 split are arranged, shell body 4 is provided with guide key groove 21, inner housing is provided with the feather key 20 coordinated that to lead with guide key groove, in, interior casing seal circle 12 is provided with between shell body, the right-hand member of shell body is provided with restriction inner housing towards the block step moved right, the left end of shell body is installed with restriction inner housing towards the threaded collar 16 moved left.
Inner housing is provided with the mounting hole extended in left-right direction, optical fiber is arranged in mounting hole, inner housing comprises middle casing 11 and is arranged in the left support post 14 on the left of middle casing 11, left guide housings 15 and the right support post 9 be arranged on the right side of middle casing 11, right guide housings 8, the MT contact pin guiding movement in left side is assemblied in left guide housings 8, optical fiber have the seal section 30 that is sealed and matched by hermetically-sealed construction 13 and mounting hole be arranged on the left of seal section 30 be connected with the light contact element of corresponding MT contact pin and when being subject to right direction acting force flexible bendable tune 10, hermetically-sealed construction is cushion rubber, cushion rubber is formed by casting glue solidification.Left guide housings is provided with restriction light contact element towards the left Stop structure 18 moving left the limit, left Stop structure is a step surface.Left support post is provided with the optical fiber passed through along the vertical direction for optical fiber and wears groove 32, the mounting hole part on left support post is worn groove with optical fiber and is communicated with, and the diameter that the aperture of mounting hole part on left support post is greater than bending section can bend to make bending section.The left side 19 of left support post is configured for spacingly with MT contact pin coordinating to limit the right Stop structure of MT contact pin towards the limit that moves right, and the lock-screw 31 that left support post 14 is extended in left-right direction by axis is fixed on middle casing 11.Left and right guide housings adopts symmetrical structure, left support post is identical with right support rod structure, optical fiber just on left support post wears groove notch down, and the optical fiber on right support post wears groove notch upward, is therefore no longer described in detail the structure of right support post and right guide housings at this.The left register pin 24 that middle casing left end eccentric setting has axis to extend in left-right direction, left guide housings is provided with the left pilot hole 22 with left register pin location fit, the right register pin 25 that middle casing right-hand member eccentric setting has axis to extend in left-right direction, right guide housings is provided with the right pilot hole 26 with right register pin location fit, left and right register pin staggers setting up and down.Fig. 5 middle term 23 represents the punched out passed for MT contact pin; Fig. 2 middle term 5 represents back-up ring.
The left and right end of hermetic fiber connector all can with intermateable connector to inserting, realize signaling transfer point, now the use of this hermetic fiber connector is described to being inserted as example with the left end of hermetic fiber connector and intermateable connector, when intermateable connector and hermetic fiber connector left end are to time slotting, MT contact pin is stressed to move right, the bendable tune flexural deformation of optical fiber and adapt to the movement of MT contact pin, the left end of left support post coordinates the limit that moves to right to limit MT contact pin with MT contact pin block, prevent optical fiber transition from bending.Left support post is taked to arrange with middle casing split, after light contact element grinding on MT contact pin, be stuck in bending section periphery along the vertical direction again, adopt this rear assembling structure, to ensure there are enough fiber lengths between MT contact pin and middle casing in light contact element process of lapping, convenient like this grinding.In other embodiments of the invention: light contact element can be ground in advance, now support column and middle casing can be wholely set; Left and right Stop structure can also be other structure, such as jump ring or back-up ring etc.; Middle casing and shell body also can be wholely set; In each MT contact pin, the quantity of light contact element can also be selected as required, such as 24 or other number, certain each smooth contact element group also can not form MT contact pin, such as other contact pin such as SC, FC; The MT contact pin kept right in the right support post of hermetic fiber connector right-hand member, right guide housings and position can not also be established, and now the right-hand member of optical fiber can pass on other the joints of optical fibre of rear connector by middle casing; Hermetically-sealed construction can also be O-ring seal; Internal and external screw thread other can also can be realized the syndeton that hermetic fiber connector and intermateable connector lock and replaces by crank slot, draw-in groove etc.
Claims (7)
1. hermetic fiber connector, comprise light contact element and housing, it is characterized in that: housing is provided with the mounting hole extended in left-right direction, light contact element in left-right direction guiding movement is assemblied in described mounting hole, housing is provided with restriction light contact element towards the left Stop structure moving left the limit, optical fiber is coated with in mounting hole, optical fiber have the seal section that is sealed and matched by hermetically-sealed construction and mounting hole be positioned on the left of seal section be connected with described smooth contact element and when being subject to right direction acting force flexible bendable tune, housing is also provided with the right Stop structure of restriction light contact element towards the limit that moves right.
2. hermetic fiber connector according to claim 1, it is characterized in that: light contact element has multiple, each smooth contact element is divided into spaced along the vertical direction at least two light contact element groups, each smooth contact element group includes at least two described smooth contact elements, and each smooth contact element in each smooth contact element group is connected together by connector and forms a MT contact pin.
3. hermetic fiber connector according to claim 1 and 2, it is characterized in that: described housing comprises shell body and inner housing, shell body is provided with the syndeton for being connected with intermateable connector, inner housing comprises middle casing and the support column be arranged on the left of middle casing and guide housings, middle casing, support column and guide housings split are arranged, described hermetically-sealed construction is arranged on described middle casing, support column is provided with the optical fiber passed through along the vertical direction for optical fiber and wears groove, right Stop structure is arranged on described support column, light contact element guiding movement is assemblied on described guide housings, left Stop structure is arranged on described guide housings.
4. hermetic fiber connector according to claim 3, is characterized in that: described right Stop structure is made up of the left side of described support column.
5. hermetic fiber connector according to claim 3, is characterized in that: support column is fixed on described middle casing by the lock-screw on axis edge in left-right direction.
6. hermetic fiber connector according to claim 3, is characterized in that: the register pin that on middle casing, eccentric setting has axis to extend in left-right direction, guide housings is provided with the pilot hole with register pin location fit.
7. hermetic fiber connector according to claim 3, is characterized in that: inner housing, shell body split are arranged, and inner housing is assemblied in the endoporus of shell body by O-ring seal sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814313.5A CN105425345B (en) | 2015-11-23 | 2015-11-23 | Hermetic fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814313.5A CN105425345B (en) | 2015-11-23 | 2015-11-23 | Hermetic fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105425345A true CN105425345A (en) | 2016-03-23 |
| CN105425345B CN105425345B (en) | 2017-06-27 |
Family
ID=55503665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814313.5A Active CN105425345B (en) | 2015-11-23 | 2015-11-23 | Hermetic fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105425345B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629398A (en) * | 2016-03-31 | 2016-06-01 | 中航光电科技股份有限公司 | Optical fiber switch connector |
| CN105717581A (en) * | 2016-03-31 | 2016-06-29 | 中航光电科技股份有限公司 | Optical fiber plug assembly and optical fiber adapter connector using same |
| CN113075769A (en) * | 2021-04-01 | 2021-07-06 | 洛阳赛焱光电科技有限公司 | Anti-loose optical fiber converter for realizing non-contact and contact type transmission mode conversion |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08122598A (en) * | 1994-10-18 | 1996-05-17 | Sankooshiya:Kk | Closure for communication cable |
| JP2006039273A (en) * | 2004-07-28 | 2006-02-09 | Kyocera Corp | Hermetic seal structure of optical fiber mounting section |
| CN203164473U (en) * | 2013-03-15 | 2013-08-28 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber hermetic seal switching box body |
| CN104216059A (en) * | 2013-06-27 | 2014-12-17 | 中航光电科技股份有限公司 | Airtight seal optical connector and manufacturing method thereof |
-
2015
- 2015-11-23 CN CN201510814313.5A patent/CN105425345B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08122598A (en) * | 1994-10-18 | 1996-05-17 | Sankooshiya:Kk | Closure for communication cable |
| JP2006039273A (en) * | 2004-07-28 | 2006-02-09 | Kyocera Corp | Hermetic seal structure of optical fiber mounting section |
| CN203164473U (en) * | 2013-03-15 | 2013-08-28 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber hermetic seal switching box body |
| CN104216059A (en) * | 2013-06-27 | 2014-12-17 | 中航光电科技股份有限公司 | Airtight seal optical connector and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629398A (en) * | 2016-03-31 | 2016-06-01 | 中航光电科技股份有限公司 | Optical fiber switch connector |
| CN105717581A (en) * | 2016-03-31 | 2016-06-29 | 中航光电科技股份有限公司 | Optical fiber plug assembly and optical fiber adapter connector using same |
| CN113075769A (en) * | 2021-04-01 | 2021-07-06 | 洛阳赛焱光电科技有限公司 | Anti-loose optical fiber converter for realizing non-contact and contact type transmission mode conversion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105425345B (en) | 2017-06-27 |
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