CN107783228B - Optical fiber connector plug - Google Patents
Optical fiber connector plug Download PDFInfo
- Publication number
- CN107783228B CN107783228B CN201711236874.7A CN201711236874A CN107783228B CN 107783228 B CN107783228 B CN 107783228B CN 201711236874 A CN201711236874 A CN 201711236874A CN 107783228 B CN107783228 B CN 107783228B
- Authority
- CN
- China
- Prior art keywords
- shell
- supporting piece
- optical fiber
- cavity
- connector plug
- 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.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- G02B6/3826—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
- G02B6/381—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an optical fiber connector plug, which comprises a front support piece, a rear support piece, a front shell and a rear shell, wherein the rear support piece is fixedly connected with the front support piece through a connecting body inserted into a connecting cavity at the front end; the front ends of the two optical fibers are respectively connected with the rear ends of the two core inserts; the extending sections of the two lock pins are respectively inserted into the two cylinder cavities of the front shell; the rear shell is internally provided with a rear mounting cavity and an optical fiber perforation, the rear mounting cavity is positioned at the front side of the optical fiber perforation, the rear end of the front shell is inserted into the rear mounting cavity of the rear shell, and the rear end of the front shell is in threaded connection with the rear mounting cavity of the rear shell. The optical fiber connector plug can enable the plug part to be stably connected with the optical fibers in the optical cable, and the plug is stable in internal mechanism, good in sealing performance and capable of adapting to external bad weather.
Description
Technical Field
The present invention relates to a fiber optic connector plug.
Background
In an optical communication line, in addition to basic devices including optical fiber cables, optical transmitters, optical repeaters, and optical receivers, many functional devices are required, which are generally classified into active devices and passive devices. The fiber optic connector is a passive device. It is an indispensable device for connection of various devices in an optical fiber communication system. And is the optical fiber device with the largest use amount at present. Due to the gradual fiberization of local communication networks, the demand for metropolitan area networks and subscriber access networks has increased, and in recent years the total demand for the global fiber optic connector market has increased, with an annual growth of around 20% being expected in the next decade. With the continuous maturity of the production design technology of the optical fiber connector and the perfect production process, the new generation of optical fiber connectors with smaller volumes and newer technology are dominant in future communication.
The current optical fiber connector is mainly limited to indoor environments and cannot adapt to external bad weather.
Disclosure of Invention
The invention aims to solve the technical problems that: the defect that the prior art is overcome, the optical fiber connector plug is provided, and the defect that the traditional optical fiber connector plug cannot adapt to the external severe environment is overcome.
The technical scheme adopted for solving the technical problems is as follows: the optical fiber connector plug comprises a front supporting piece, a rear supporting piece, a front shell and a rear shell, wherein a connecting cavity and two core holes are formed in the front supporting piece, and the connecting cavity is positioned at the rear sides of the two core holes;
clamping grooves for accommodating optical fibers are respectively formed in two sides of the rear supporting piece, and a connector is formed at the front end of the rear supporting piece; the rear supporting piece is inserted into the connecting cavity through a connecting body at the front end and is fixedly connected with the front supporting piece; the front ends of the two core inserts extend out of the front support body to form an extending section; two optical fibers of the optical cable extend into the two core holes from the two clamping grooves of the rear supporting piece respectively, and the front ends of the two optical fibers are connected with the rear ends of the two inserting cores respectively;
the front shell is internally provided with a front cavity and two barrel cavities, the front supporting piece is arranged in the front cavity, and the extending sections of the two inserting cores are respectively inserted into the two barrel cavities of the front shell;
the rear shell is internally provided with a rear mounting cavity and an optical fiber perforation, the rear mounting cavity is positioned at the front side of the optical fiber perforation, the rear end of the front shell is inserted into the rear mounting cavity of the rear shell, and the rear end of the front shell is in threaded connection with the rear mounting cavity of the rear shell.
Further, the connector at the front end of the rear support piece is flat, and the connecting cavity formed in the front support piece is a flat cavity; the upper end and the lower end of the connecting body are respectively provided with a clamping protrusion, and the upper end and the lower end in the connecting cavity are respectively provided with a groove; when the connecting body of the rear supporting piece is inserted into the connecting cavity of the front supporting piece, the upper clamping convex part and the lower clamping convex part are respectively clamped into the upper groove and the lower groove.
Further, the left and right sides of the front supporting piece are respectively provided with an outer key protrusion, and the left and right sides in the front shell are respectively provided with corresponding inner key grooves; when the front support is inserted into the front shell, the two outer keys of the front support are convexly inserted into the two inner key grooves of the front shell.
Further, a sealing gasket is arranged at the bottom of the rear mounting cavity of the rear shell, and the rear end of the front shell abuts against the sealing gasket.
Further, compression springs are respectively arranged in the two core holes of the front supporting piece, the front ends of the compression springs are abutted against the insert cores, and the rear ends of the compression springs are abutted against the front end face of the connector of the rear supporting piece.
Further, the high-temperature tube is sleeved outside the joint of the front end of the optical fiber and the rear end of the ferrule, the front end of the high-temperature tube is positioned in the core hole, and the rear end of the high-temperature tube is positioned in the clamping groove of the rear supporting piece.
Further, the rear end of the rear shell is sleeved with a compression ring for compressing the optical cable.
Further, the rear housing is externally connected with a tail pipe.
Further, the front end of the front shell is provided with an insert body matched with the optical cable socket, the front shell is externally connected with a threaded sleeve for socket connection, the insert body is positioned in the threaded sleeve, a second sealing ring is arranged outside the insert body, and an outer key groove is formed in the front end of the insert body.
Further, the two cylinder cavities are respectively provided with a sleeve, and the insert core extension section is inserted from the rear end of the sleeve.
The beneficial effects of the invention are as follows: the optical fiber connector plug can enable the plug part to be stably connected with the optical fibers in the optical cable, and the plug is stable in internal mechanism, good in sealing performance and capable of adapting to external bad weather.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a half cross-sectional view of a connector plug of the present invention;
FIG. 2 is a diagram of the connection between the front housing, rear housing, front support and rear support;
fig. 3 and 4 are perspective views of the front support;
fig. 5 and 6 are perspective views of the rear support;
fig. 7 and 8 are perspective views of the front housing;
fig. 9 is a perspective view of a connector plug;
the high-temperature pipe comprises a front supporting piece, a 1A, a groove, a 1B, an outer key protrusion, a 2 rear supporting piece, a 2A, a clamping protrusion, a 2B, a clamping groove, a 3, a front shell, a 3A, an outer key groove, a 3B, an inner key groove, a 4, a rear shell, a 5, a lock pin, a 6, a compression ring, a 7, a compression spring, a 8, a high-temperature pipe, a 9, a sealing gasket, a 10, a sleeve, a 11, a sealing ring, a 12, a screw sleeve, a 13 and a tail pipe.
Detailed Description
The invention will now be further described with reference to specific examples. These drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 9, an optical fiber connector plug includes a front support member 1, a rear support member 2, a front housing 3 and a rear housing 4, wherein a connection cavity and two core holes are formed in the front support member 1, and the connection cavity is located at the rear sides of the two core holes.
Clamping grooves 2B for accommodating optical fibers are respectively formed in two sides of the rear support piece 2, and a connector is formed at the front end of the rear support piece 2; the rear support 2 is inserted into the connecting cavity through a connector at the front end and is fixedly connected with the front support 1; the two core holes are respectively provided with a core insert 5, and the front ends of the two core inserts 5 extend out of the front support body to form an extending section; two optical fibers of the optical cable extend into the two core holes from the two clamping grooves 2B of the rear supporting piece 2 respectively, and the front ends of the two optical fibers are connected with the rear ends of the two inserting cores 5 respectively.
The front housing 3 is internally provided with a front cavity and two barrel cavities, the front supporting piece 1 is arranged in the front cavity, and the extending sections of the two lock pins 5 are respectively inserted into the two barrel cavities of the front housing 3.
The rear housing 4 is internally provided with a rear mounting cavity and an optical fiber perforation, the rear mounting cavity is positioned at the front side of the optical fiber perforation, the rear end of the front housing 3 is inserted into the rear mounting cavity of the rear housing 4, and the rear end of the front housing 3 is in threaded connection with the rear mounting cavity of the rear housing 4.
The connecting body at the front end of the rear support piece 2 is flat, and the connecting cavity arranged in the front support piece 1 is a flat cavity; the connection can prevent relative rotation between the two supporting pieces; the upper end and the lower end of the connecting body are respectively provided with a clamping convex 2A, and the upper end and the lower end in the connecting cavity are respectively provided with a groove 1A; when the connector of the rear support 2 is inserted into the connecting cavity of the front support 1, the upper and lower clamping protrusions 2A are respectively clamped into the upper and lower grooves 1A. The connecting joint can bear larger torque.
In order to improve stability between the front support 1 and the front shell 3, the left and right sides of the front support 1 are respectively provided with an outer key protrusion 1B, and the left and right sides in the front shell 3 are respectively provided with corresponding inner key grooves 3B; when the front support 1 is inserted into the front housing 3, the two outer key protrusions 1B of the front support 1 are inserted into the two inner key grooves 3B of the front housing 3.
In order to improve the tightness of the joint, a sealing gasket 9 is arranged at the bottom of the rear mounting cavity of the rear shell 4, and the rear end of the front shell 3 abuts against the sealing gasket 9.
Compression springs 7 are respectively arranged in the two core holes of the front support piece 1, the front ends of the compression springs 7 are abutted against the lock pin 5, and the rear ends of the compression springs 7 are abutted against the front end face of the connector of the rear support piece 2. The compression spring 7 works to press the ferrule 5 against the front end of the front support 1 and elastically set it in the front support 1.
The outer part of the joint of the front end of the optical fiber and the rear end of the lock pin 5 is sleeved with a high-temperature pipe 8, the front end of the high-temperature pipe 8 is positioned in the core hole, and the rear end of the high-temperature pipe 8 is positioned in the clamping groove 2B of the rear support 2.
The rear end of the rear shell 4 is sleeved with a compression ring 6 for compressing the optical cable. The compression ring 6 has the function of compressing, and the optical cable ensures the stability of the internal optical fiber under the condition of ensuring the stability of the optical cable.
The rear housing 4 is externally connected to the tail pipe 13. The tail pipe 13 is used to ensure stability at the cable connection end.
The two cylinder cavities are respectively provided with a sleeve 10, and the extension section of the inserting core 5 is inserted from the rear end of the sleeve 10. The sleeve 10 allows a stable connection of the ferrule 5 with the ferrule 5 in the socket.
The front end of the front shell 3 forms an insert body matched with the optical cable socket, the front shell 3 is externally connected with a threaded sleeve 12 for socket connection, the insert body is positioned in the threaded sleeve 12, a second sealing ring 11 is arranged outside the insert body, and an outer key groove 3A is formed in the front end of the insert body. The threaded sleeve 12 realizes connection between the optical cable plug and the optical cable socket, and the outer key groove 3A is in key convex fit with the socket, so that the optical cable plug and the optical cable socket are prevented from rotating relatively, and connection stability is improved.
The connector plug is connected with the optical cable, the two lock pins 5 in the plug are connected with the optical fiber, the plug and the socket can be stably connected, the flat structure between the two supporting pieces can bear larger torque, and the stability of the connection with the socket is ensured while the stability of the structure in the plug is ensured.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. The optical fiber connector plug is characterized by comprising a front supporting piece (1), a rear supporting piece (2), a front shell (3) and a rear shell (4), wherein a connecting cavity and two core holes are formed in the front supporting piece (1), and the connecting cavity is positioned at the rear sides of the two core holes; clamping grooves (2B) for accommodating optical fibers are respectively formed in two sides of the rear supporting piece (2), and a connector is formed at the front end of the rear supporting piece (2); the rear supporting piece (2) is fixedly connected with the front supporting piece (1) through the connecting body inserted into the connecting cavity at the front end; the two core holes are respectively provided with a core insert (5), and the front ends of the two core inserts (5) extend out of the front support body to form an extending section; two optical fibers of the optical cable extend into the two core holes from two clamping grooves (2B) of the rear supporting piece (2) respectively, and the front ends of the two optical fibers are connected with the rear ends of the two inserting cores (5) respectively; a front cavity and two cylinder cavities are formed in the front shell (3), the front supporting piece (1) is arranged in the front cavity, and the extending sections of the two inserting cores (5) are respectively inserted into the two cylinder cavities of the front shell (3); a rear mounting cavity and an optical fiber perforation are formed in the rear shell (4), the rear mounting cavity is positioned at the front side of the optical fiber perforation, the rear end of the front shell (3) is inserted into the rear mounting cavity of the rear shell (4), and the rear end of the front shell (3) is in threaded connection with the rear mounting cavity of the rear shell (4);
the connecting body at the front end of the rear supporting piece (2) is flat, and the connecting cavity formed in the front supporting piece (1) is a flat cavity; the upper end and the lower end of the connecting body are respectively provided with a clamping protrusion (2A), and the upper end and the lower end in the connecting cavity are respectively provided with a groove (1A); when the connector of the rear support (2) is inserted into the connecting cavity of the front support (1), the upper clamping convex (2A) and the lower clamping convex (2A) are respectively clamped into the upper groove (1A) and the lower groove;
the left and right sides of the front supporting piece (1) are respectively provided with an outer key protrusion (1B), and the left and right sides in the front shell (3) are respectively provided with corresponding inner key grooves (3B); when the front support (1) is inserted into the front shell (3), the two outer key protrusions (1B) of the front support (1) are inserted into the two inner key grooves (3B) of the front shell (3).
2. The optical fiber connector plug according to claim 1, wherein a gasket (9) is provided at the bottom of the rear mounting cavity of the rear housing (4), and the rear end of the front housing (3) abuts against the gasket (9).
3. The optical fiber connector plug according to claim 1, wherein compression springs (7) are respectively arranged in the two core holes of the front supporting piece (1), the front ends of the compression springs (7) are abutted against the inserting cores (5), and the rear ends of the compression springs (7) are abutted against the front end face of the connector of the rear supporting piece (2).
4. The optical fiber connector plug according to claim 1, wherein a high temperature tube (8) is sleeved outside the joint of the front end of the optical fiber and the rear end of the ferrule (5), the front end of the high temperature tube (8) is positioned in the core hole, and the rear end of the high temperature tube (8) is positioned in the clamping groove (2B) of the rear support (2).
5. The optical fiber connector plug according to claim 1, wherein the rear end of the rear housing (4) is sleeved with a compression ring (6) for compressing the optical cable.
6. A fiber optic connector plug according to claim 1, wherein the rear housing (4) is externally connected to a tailpipe (13).
7. The optical fiber connector plug according to claim 1, wherein the front end of the front housing (3) forms an insert body for being matched with an optical cable socket, the front housing (3) is externally connected with a threaded sleeve (12) for socket connection, the insert body is positioned in the threaded sleeve (12), a second sealing ring (11) is arranged outside the insert body, and an external key groove (3A) is formed in the front end of the insert body.
8. A fiber optic connector plug according to claim 1, wherein the two chambers are each provided with a sleeve (10), and the protruding section of the ferrule (5) is inserted from the rear end of the sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236874.7A CN107783228B (en) | 2017-11-30 | 2017-11-30 | Optical fiber connector plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236874.7A CN107783228B (en) | 2017-11-30 | 2017-11-30 | Optical fiber connector plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107783228A CN107783228A (en) | 2018-03-09 |
| CN107783228B true CN107783228B (en) | 2023-12-26 |
Family
ID=61431312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236874.7A Active CN107783228B (en) | 2017-11-30 | 2017-11-30 | Optical fiber connector plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107783228B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709645A (en) * | 2019-03-18 | 2019-05-03 | 爱普迪光通讯科技(深圳)有限公司 | Fiber stub connector adapter |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05119240A (en) * | 1991-10-28 | 1993-05-18 | Hitachi Cable Ltd | Multi-fiber optical connector |
| JP2003149506A (en) * | 2001-11-14 | 2003-05-21 | Fujikura Ltd | Optical connection component with ferrule and optical connector receptacle |
| JP2007078740A (en) * | 2005-09-09 | 2007-03-29 | Fujikura Ltd | Optical connector receptacle, and substrate with the same |
| JP2007121859A (en) * | 2005-10-31 | 2007-05-17 | Fujikura Ltd | Optical connector receptacle and optical connector |
| JP2008026647A (en) * | 2006-07-21 | 2008-02-07 | Fujikura Ltd | Optical receptacle housing, optical connector receptacle, and optical equipment |
| US7658551B1 (en) * | 2008-10-27 | 2010-02-09 | Advanced Connectek Inc. | Optical fiber connector |
| CN102819071A (en) * | 2012-09-12 | 2012-12-12 | 苏州瑞可达连接系统有限公司 | Multicore optical fiber connector |
| CN105137547A (en) * | 2015-09-02 | 2015-12-09 | 中航光电科技股份有限公司 | Fiber connector and fiber connector assembly |
| JP2016164600A (en) * | 2015-03-06 | 2016-09-08 | 株式会社フジクラ | Plug-side optical connector, optical connector system, and optical cable with connector |
| CN207557533U (en) * | 2017-11-30 | 2018-06-29 | 金信诺（常州）轨道信号系统科技有限公司 | Optical fiber connector plug |
-
2017
- 2017-11-30 CN CN201711236874.7A patent/CN107783228B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05119240A (en) * | 1991-10-28 | 1993-05-18 | Hitachi Cable Ltd | Multi-fiber optical connector |
| JP2003149506A (en) * | 2001-11-14 | 2003-05-21 | Fujikura Ltd | Optical connection component with ferrule and optical connector receptacle |
| JP2007078740A (en) * | 2005-09-09 | 2007-03-29 | Fujikura Ltd | Optical connector receptacle, and substrate with the same |
| JP2007121859A (en) * | 2005-10-31 | 2007-05-17 | Fujikura Ltd | Optical connector receptacle and optical connector |
| JP2008026647A (en) * | 2006-07-21 | 2008-02-07 | Fujikura Ltd | Optical receptacle housing, optical connector receptacle, and optical equipment |
| US7658551B1 (en) * | 2008-10-27 | 2010-02-09 | Advanced Connectek Inc. | Optical fiber connector |
| CN102819071A (en) * | 2012-09-12 | 2012-12-12 | 苏州瑞可达连接系统有限公司 | Multicore optical fiber connector |
| JP2016164600A (en) * | 2015-03-06 | 2016-09-08 | 株式会社フジクラ | Plug-side optical connector, optical connector system, and optical cable with connector |
| CN105137547A (en) * | 2015-09-02 | 2015-12-09 | 中航光电科技股份有限公司 | Fiber connector and fiber connector assembly |
| CN207557533U (en) * | 2017-11-30 | 2018-06-29 | 金信诺（常州）轨道信号系统科技有限公司 | Optical fiber connector plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107783228A (en) | 2018-03-09 |
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