CN110208911A - A kind of Optical fiber plug and optical fiber connector - Google Patents
A kind of Optical fiber plug and optical fiber connector Download PDFInfo
- Publication number
- CN110208911A CN110208911A CN201811451843.8A CN201811451843A CN110208911A CN 110208911 A CN110208911 A CN 110208911A CN 201811451843 A CN201811451843 A CN 201811451843A CN 110208911 A CN110208911 A CN 110208911A
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- China
- Prior art keywords
- optical fiber
- rotation stop
- stop part
- contact pin
- fiber
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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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to a kind of Optical fiber plug and optical fiber connectors.Optical fiber plug includes inner sheath and contact pin, contact pin has contact pin inner hole, Optical fiber plug further includes for being fixed on inner sheath simultaneously rotation stop part of the fiber identification end face relative to contact pin inner hole axis deviation direction, rotation stop part has for the axially directed cooperation of fiber adapter and circumferential rotation stop is with guiding optical cable plug and fiber adapter is merged to slotting rotation stop mating surface, inner sheath to be equipped at least two rotation stop parts and fixes position.Both detections concentricity after optical fiber is installed into contact pin inner hole, if optical fiber glances off, rotation stop part is just fixedly mounted on to rotation stop part fixed position nearest from optical fiber skew direction or farthest, rotation stop part can either skew direction of the fiber identification end face relative to axially bored line in contact pin at this time, also act as guiding rotation stop effect simultaneously, by two Optical fiber plugs and fiber adapter to it is slotting when, so that two optical fiber is biased to the same side, to enable fiber end face more accurately to dock, reduce Insertion Loss.
Description
Technical field
The present invention relates to a kind of Optical fiber plug and optical fiber connectors.
Background technique
In optical communication field, it is often necessary to realize the signal transmission of two Optical fiber plugs by fiber adapter.Application
Publication No. is that the Chinese patent application file of CN106873085A discloses a kind of fiber adapter, which includes suitable
Orchestration shell, is provided with the casing extended in left-right direction in adapter shell, the left end of adapter shell and casing be for
With the first Optical fiber plug to slotting left inserted terminal, the right end of adapter shell and casing be for the second Optical fiber plug to slotting
Right inserted terminal, the left end of adapter shell are equipped with the left feather key for being packed into for the guiding key block guiding on the first Optical fiber plug
Slot, the right end of adapter shell are equipped with the right guide key groove for being packed into for the guiding key block guiding on the second Optical fiber plug.
Theoretically the first, second Optical fiber plug is coaxial to the optical fiber for being inserted in latter two Optical fiber plug on fiber adapter
, and inaccurate situation is docked to often occurring fiber end face after inserting in reality.This is because Optical fiber plug was assembled in manufacture
Contact pin inner hole on Cheng Zhong, optical fiber and Optical fiber plug is clearance fit, and optical fiber can not after optical fiber is fixed in contact pin inner hole
It avoids the side that can be biased to contact pin inner hole and not coaxial with contact pin inner hole, that is, the phenomenon that optical fiber has filled askew occurs, in this way, by two
A Optical fiber plug and fiber adapter to it is slotting when, as long as wherein having an Optical fiber plug optical fiber occur fills askew situation, two light
The concentricity of the optical fiber of fine plug will be unable to accurately guarantee, i.e. the accurate docking of fiber end face not can guarantee, so as to cause optical fiber
The Insertion Loss of connector is larger.
Summary of the invention
The purpose of the present invention is to provide a kind of Optical fiber plugs, to solve Optical fiber plug and fiber adapters in the prior art
Device to it is slotting when not can guarantee the accurate docking of fiber end face and the problem that causes Insertion Loss larger；Meanwhile the present invention also provides one
Kind of optical fiber connector, with solve existing optical fiber connector Optical fiber plug and fiber adapter to it is slotting when because not can guarantee optical fiber
The accurate docking of end face and the problem for causing Insertion Loss larger.
To achieve the above object, the technical solution of Optical fiber plug of the present invention is:
Optical fiber plug includes inner sheath and the contact pin that is mounted in inner sheath, and contact pin has the contact pin inner hole for installing optical fiber,
Optical fiber plug further includes for being fixed on inner sheath and fiber identification end face stopping relative to contact pin inner hole axis deviation direction
Turn part, rotation stop part has for the axially directed cooperation of fiber adapter and circumferential rotation stop is with merging guiding optical cable plug and optical fiber
For adapter to slotting rotation stop mating surface, inner sheath is equipped at least two for fixing rotation stop after optical fiber is installed to contact pin inner hole
The fixed position of the rotation stop part of part.
By the concentricity of both detector tests after optical fiber is installed into contact pin inner hole, if optical fiber is in contact pin inner hole
In glance off, rotation stop part is just fixedly mounted on to rotation stop part fixed position nearest from optical fiber skew direction or farthest, this
When rotation stop part can either skew direction of the fiber identification end face relative to axially bored line in contact pin, while also acting as guiding rotation stop and making
With, by two Optical fiber plugs and fiber adapter to it is slotting when, so that two optical fiber is biased to the same side, to keep fiber end face real
Now more accurately docking, reduces Insertion Loss.
Each rotation stop part fixed position is equipped with the fixing groove of fixed rotation stop part, each fixing groove interval setting.Fixed point setting is solid
Positioning is set, and the setting of fixed position and the installation of rotation stop part are facilitated.
Rotation stop part is the rotation stop key being adapted to the fixing groove.The structure of rotation stop part is simple, is easy to implement.
The rotation stop part and fixing groove are interference fitted.Over-surplus fit structure is simple, facilitates processing and installation.
Plane is machined on the outer peripheral surface of the inner sheath, the fixing groove opens up in the plane.First process plane, then plus
Work fixing groove can facilitate the processing of fixing groove.
The technical solution of optical fiber connector of the present invention is:
Optical fiber connector includes fiber adapter and two Optical fiber plugs being adapted to fiber adapter, and fiber adapter includes suitable
Orchestration shell, adapter shell both ends are inserted terminal mating with two Optical fiber plugs respectively, the grafting of adapter shell
End is equipped with the guide structure for guiding corresponding Optical fiber plug insertion, and Optical fiber plug includes inner sheath and is mounted in inner sheath
Contact pin, contact pin have the contact pin inner hole for installing optical fiber, and Optical fiber plug further includes for being fixed on inner sheath and identifying light
Rotation stop part of the fine end face relative to contact pin inner hole axis deviation direction, rotation stop part have for fiber adapter is axially directed matches
It closes and circumferential rotation stop is with guiding optical cable plug and fiber adapter is merged to slotting rotation stop mating surface, inner sheath is equipped at least two
The fixed position of a rotation stop part for fixing rotation stop part after optical fiber is installed to contact pin inner hole.
By the concentricity of both detector tests after optical fiber is installed into contact pin inner hole, if optical fiber is in contact pin inner hole
In glance off, rotation stop part is just fixedly mounted on to rotation stop part fixed position nearest from optical fiber skew direction or farthest, this
When rotation stop part can either skew direction of the fiber identification end face relative to axially bored line in contact pin, while also acting as guiding rotation stop and making
With, by two Optical fiber plugs and fiber adapter to it is slotting when, so that two optical fiber is biased to the same side, to keep fiber end face real
Now more accurately docking, reduces Insertion Loss.
Each rotation stop part fixed position is equipped with the fixing groove of fixed rotation stop part, each fixing groove interval setting.Fixed point setting is solid
Positioning is set, and the setting of fixed position and the installation of rotation stop part are facilitated.
Rotation stop part is the rotation stop key being adapted to the fixing groove.The structure of rotation stop part is simple, is easy to implement.
The rotation stop part and fixing groove are interference fitted.Over-surplus fit structure is simple, facilitates processing and installation.
Plane is machined on the outer peripheral surface of the inner sheath, the fixing groove opens up in the plane.First process plane, then plus
Work fixing groove can facilitate the processing of fixing groove.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Optical fiber plug in the specific embodiment of optical fiber connector of the invention；
Fig. 2 is the semi-cutaway of Fig. 1；
Fig. 3 is the structural schematic diagram of contact pin component；
In figure: 1- inner sheath；2- contact pin；3- rotation stop part；4- fixing groove；5- contact pin component；6- outer housing.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of optical fiber connector of the invention, including fiber adapter and be adapted to fiber adapter two
Optical fiber plug, fiber adapter include adapter shell, and adapter shell both ends are mating with two Optical fiber plugs respectively
Inserted terminal, the inserted terminal of adapter shell is equipped with the guide structure for guiding corresponding Optical fiber plug insertion, adapter shell
In be equipped with both ends be adapted to the contact pin of two Optical fiber plugs respectively to plug in casing, the contact pin of two Optical fiber plugs is right in casing
Connect the transmission for realizing optical signal.The specific structure of fiber adapter is identical as fiber adapter structure in the prior art, herein
No longer it is discussed in detail.
The structure of Optical fiber plug is as shown in Figure 1 to Figure 3, including outer housing 6, and one end of outer housing 6 is equipped with contact pin component
5, as shown in figure 3, contact pin component 5 includes inner sheath 1 and the contact pin 2 being mounted in inner sheath 1, contact pin 2 has for installing light
Fine contact pin inner hole, Optical fiber plug further include rotation stop part 3, rotation stop part 3 be fixed on inner sheath 1 and fiber identification end face relative to
The skew direction of axially bored line in contact pin.Rotation stop part 3 has and the axially directed cooperation of guide structure on fiber adapter and circumferential direction
The rotation stop mating surface of rotation stop cooperation.For fixing rotation stop part 3 after optical fiber is installed to contact pin inner hole there are four being set on inner sheath 1
Fixing groove 4, four fixing grooves 4 are uniformly distributed in the circumferential direction of inner sheath 1.In the present embodiment, rotation stop part 3 is to be adapted to fixing groove 4
Rotation stop key, and rotation stop key and fixing groove 4 are interference fitted, rotation stop mating surface is the side of rotation stop key.There is flange on inner sheath 1
Disk, there are four planes, fixing groove 4 to be provided in four planes for processing on the outer peripheral surface of ring flange.Optical fiber plug in the present embodiment
It in other embodiments can also be SC plug or FC plug for ST plug.
When optical fiber connector of the invention is assembled, optical fiber is installed into contact pin inner hole first, then by dedicated
Detector test optical fiber and the concentricity of contact pin inner hole just rotation stop key is consolidated if optical fiber glances off in contact pin inner hole
Dingan County is mounted in rotation stop part fixed position nearest from optical fiber skew direction or farthest, is equivalent to and gives a label, at this time
Rotation stop key can either play the role of being oriented to rotation stop, while also identify deflection side of the fiber end face relative to axially bored line in contact pin
To, assembled two Optical fiber plugs respectively with fiber adapter to inserting, the rotation stop key on two Optical fiber plugs respectively with optical fiber
The guide structure at both ends is corresponding on adapter, and guide structure is specifically exactly guiding groove, and the guiding groove at both ends only has one
A, two guiding grooves are located parallel on the same straight line of fiber adapter axis, so after grafting, in the contact pin of two sides
Optical fiber is biased to the same side, is easier to dock instead, to reduce Insertion Loss.
In above-described embodiment, it is equipped with fixing groove in each rotation stop part fixed position, is matched by rotation stop key and fixing groove interference
Rotation stop key is fixed on inner sheath by conjunction.In other embodiments, rotation stop part can also be bail.Alternatively, on inner sheath
Threaded hole is arranged in rotation stop part fixed position, rotation stop part is set as one end with externally threaded column structure, rotation stop part spinning exists
In threaded hole.Or fixing groove is set as dovetail groove, rotation stop part is set as to which is provided with the column structure of elastic claw, elastic claw card
To which rotation stop part to be fixed in fixing groove in dovetail groove.
In above-described embodiment, rotation stop part fixed bit is installed there are four and is evenly distributed in the circumferential direction of inner sheath.In other implementations
In example, the fixed position of rotation stop part can also be set as two, three, five etc. it is multiple, preferably of course, the fixed position of each rotation stop part
It is uniformly distributed in the circumferential direction of inner sheath.Alternatively, the annular groove with contact pin female coaxial is arranged on inner sheath, at this point, rotation stop part is fixed
There is numerous, the mountable any position in annular groove of rotation stop part in position.Or fixing groove is not set on inner sheath, inner sheath
Outer surface constitutes the fixed position of rotation stop part, and rotation stop part is welded on inner sheath.
In above-described embodiment, there is ring flange on inner sheath, fixing groove is provided on ring flange, in other embodiments,
Can also there is no ring flange on inner sheath, fixing groove is directly provided on inner sheath.In above-described embodiment, two on fiber adapter
The guide structure at end is guiding groove, and in other embodiments, guide structure is also possible to the guide key of strip, at this time rotation stop
The rotation stop hole with the axially directed cooperation of guide key and circumferential rotation stop cooperation is opened up on part, rotation stop mating surface is the hole in rotation stop hole
Wall.
The present invention also provides a kind of embodiment of Optical fiber plug, specific structure and each embodiment of above-mentioned optical fiber connector
The structure of middle Optical fiber plug is identical, and details are not described herein again.
Claims (10)
1. a kind of Optical fiber plug, including inner sheath and the contact pin being mounted in inner sheath, contact pin has for installing inserting for optical fiber
Needle inner hole, characterized in that Optical fiber plug further include for be fixed on inner sheath and fiber identification end face relative to contact pin inner hole
The rotation stop part in axis deviation direction, rotation stop part have for the axially directed cooperation of fiber adapter and circumferential rotation stop is drawn with merging
To slotting rotation stop mating surface, inner sheath is equipped at least two for installing in optical fiber to slotting for guiding fiber plug and fiber adapter
The fixed position of rotation stop part of rotation stop part is fixed after needle inner hole.
2. Optical fiber plug according to claim 1, characterized in that each rotation stop part fixed position is equipped with fixed rotation stop part
Fixing groove, each fixing groove interval setting.
3. Optical fiber plug according to claim 2, characterized in that rotation stop part is the rotation stop key being adapted to the fixing groove.
4. Optical fiber plug according to claim 3, characterized in that the rotation stop part and fixing groove are interference fitted.
5. according to Optical fiber plug described in Claims 2 or 3 or 4, characterized in that be machined on the outer peripheral surface of the inner sheath flat
Face, the fixing groove open up in the plane.
6. a kind of optical fiber connector, including fiber adapter and two Optical fiber plugs being adapted to fiber adapter, fiber adapters
Device includes adapter shell, and adapter shell both ends are inserted terminal mating with two Optical fiber plugs respectively, adapter shell
The inserted terminal of body is equipped with the guide structure for guiding corresponding Optical fiber plug insertion, and Optical fiber plug includes inner sheath and is mounted on interior
Contact pin in sheath, contact pin have the contact pin inner hole for installing optical fiber, characterized in that Optical fiber plug further includes for being fixed on
On inner sheath and rotation stop part of the fiber identification end face relative to contact pin inner hole axis deviation direction, rotation stop part, which has, to be used for and optical fiber
The rotation stop mating surface of the axially directed cooperation of guide structure and circumferential rotation stop cooperation on adapter, inner sheath are equipped at least two
The fixed position of rotation stop part for fixing rotation stop part after optical fiber is installed to contact pin inner hole.
7. optical fiber connector according to claim 6, characterized in that each rotation stop part fixed position is equipped with fixed rotation stop part
Fixing groove, the setting of each fixing groove interval.
8. optical fiber connector according to claim 7, characterized in that rotation stop part is the rotation stop being adapted to the fixing groove
Key.
9. optical fiber connector according to claim 8, characterized in that the rotation stop part and fixing groove are interference fitted.
10. according to optical fiber connector described in claim 7 or 8 or 9, characterized in that processed on the outer peripheral surface of the inner sheath
There is plane, the fixing groove opens up in the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451843.8A CN110208911B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451843.8A CN110208911B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110208911A true CN110208911A (en) | 2019-09-06 |
| CN110208911B CN110208911B (en) | 2021-05-18 |
Family
ID=67780014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451843.8A Active CN110208911B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110208911B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1250172A (en) * | 1968-09-24 | 1971-10-20 | ||
| CN1459644A (en) * | 2002-05-22 | 2003-12-03 | 米沢电线株式会社 | Optical connector |
| CN2824861Y (en) * | 2005-10-28 | 2006-10-11 | 北京光电技术研究所 | Side-emitting laser fiber structure |
| CN102057307A (en) * | 2008-06-13 | 2011-05-11 | 株式会社藤仓 | Optical fiber connection method, connection tool, and connection jig for optical fiber |
| CN201926781U (en) * | 2010-12-02 | 2011-08-10 | 泰科电子(上海)有限公司 | Optical fiber connector |
| CN103988105A (en) * | 2011-12-05 | 2014-08-13 | 住友电气工业株式会社 | Junction structure for multicore optical fiber and method for manufacturing junction structure for multicore optical fiber |
| CN204284744U (en) * | 2014-12-01 | 2015-04-22 | 武汉永力科技股份有限公司 | One is transferred locking device fast |
-
2018
- 2018-11-30 CN CN201811451843.8A patent/CN110208911B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1250172A (en) * | 1968-09-24 | 1971-10-20 | ||
| CN1459644A (en) * | 2002-05-22 | 2003-12-03 | 米沢电线株式会社 | Optical connector |
| CN2824861Y (en) * | 2005-10-28 | 2006-10-11 | 北京光电技术研究所 | Side-emitting laser fiber structure |
| CN102057307A (en) * | 2008-06-13 | 2011-05-11 | 株式会社藤仓 | Optical fiber connection method, connection tool, and connection jig for optical fiber |
| CN201926781U (en) * | 2010-12-02 | 2011-08-10 | 泰科电子(上海)有限公司 | Optical fiber connector |
| CN103988105A (en) * | 2011-12-05 | 2014-08-13 | 住友电气工业株式会社 | Junction structure for multicore optical fiber and method for manufacturing junction structure for multicore optical fiber |
| CN204284744U (en) * | 2014-12-01 | 2015-04-22 | 武汉永力科技股份有限公司 | One is transferred locking device fast |
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| Publication number | Publication date |
|---|---|
| CN110208911B (en) | 2021-05-18 |
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