CN106842437B - A kind of APC type optical fiber connector and its optical fiber contact - Google Patents
A kind of APC type optical fiber connector and its optical fiber contact Download PDFInfo
- Publication number
- CN106842437B CN106842437B CN201710217993.1A CN201710217993A CN106842437B CN 106842437 B CN106842437 B CN 106842437B CN 201710217993 A CN201710217993 A CN 201710217993A CN 106842437 B CN106842437 B CN 106842437B
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- China
- Prior art keywords
- rotation stop
- optical fiber
- contact
- housing
- flange
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- 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
-
- 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
- G02B6/383—Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts
-
- 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
Landscapes
- 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 APC type optical fiber connector and its optical fiber contacts, APC type optical fiber connector includes connector shell, optical fiber contact is provided in the contact cavity of connector shell, optical fiber contact includes the optical fiber contact pins that housing and rear end are provided with contact pin flange, contact pin flange is oriented to the housing rotation stop along the longitudinal direction to be cooperated, spring is provided between contact pin flange and housing, the flange rotation stop fit structure with the cooperation of connector shell rotation stop is provided on contact pin flange, the anti-misloading rotation stop fit structure being provided with connector shell rotation stop cooperation is put on outside.The present invention provides optical fiber contacts used in a kind of APC type optical fiber connector that optical fiber contact and the anti-misloading of connector shell may be implemented and the APC type optical fiber connector.
Description
Technical field
The present invention relates to a kind of APC type optical fiber connector and its optical fiber contacts.
Background technique
Optical fiber connector has the types such as FC plane contact pin, PC spherical surface contact pin and the inclined-plane APC contact pin by contact pin end surface shape point,
Wherein the return loss of the inclined-plane APC contact pin is big, can be adapted for having in dust and field environment and uses.Existing APC type optical fiber
Connector " inclined-plane contact pin multi-fiber connector " as disclosed in Chinese patent CN203616506U, including connector shell and light
Fine contact, optical fiber contact include the optical fiber contact pins that front end face is inclined-plane, are provided with contact pin flange, contact pin method on optical fiber contact pins
The fluting with the cooperation of connector shell rotation stop is provided on orchid, by the rotation stop matching relationship slotted with connector shell, to determine
The inclined direction on the inclined-plane of position optical fiber contact pins, with guarantee two optical fiber connectors to it is slotting when, can accurately be bonded between inclined-plane.It is existing
This optical fiber connector have problems in that: fluting on contact pin flange is even distribution type structure, and optical fiber contact is caused to exist
When being assembled on connector shell, without anti-misloading function, it there is a problem that angle is not pair and wrongly installed.
Summary of the invention
The purpose of the present invention is to provide a kind of APC type light that optical fiber contact Yu the anti-misloading of connector shell may be implemented
Fiber connector；The object of the invention is also to provide optical fiber contacts used in a kind of APC type optical fiber connector.
To solve the above-mentioned problems, the present invention in APC type optical fiber connector technical solution are as follows:
APC type optical fiber connector, including connector shell are provided with optical fiber in the contact cavity of connector shell and connect
Contact element, optical fiber contact include the optical fiber contact pins that housing and rear end are provided with contact pin flange, contact pin flange along the longitudinal direction with institute
The guiding cooperation of housing rotation stop is stated, spring is provided between contact pin flange and housing, is provided on contact pin flange and connector shell
The flange rotation stop fit structure of rotation stop cooperation puts on to be provided with outside and match with the anti-misloading rotation stop of connector shell rotation stop cooperation
Close structure.
Anti- misloading rotation stop fit structure includes that one or more is set to outer convex key on outer set, on connector shell
It is provided with for the outer convex key indent keyway that upper adaptation is packed into along the longitudinal direction.
Flange rotation stop fit structure includes the cylindrical portion with rotation stop plane, and cylindrical portion and housing rotation stop guiding cooperate, connect
The front end of contact element mounting hole, which has, to be pierced by realize the rotation stop hole section with the cooperation of contact pin flange rotation stop for cylindrical portion adaptation.
Cylindrical portion is squashed structure, and the outer peripheral surface of squashed structure by two rotation stop planes disposed in parallel and is connected to
The side composition of two rotation stop interplanars.
There are two the optical fiber contacts for setting in connector shell, and two optical fiber contacts or so arrangement, definition is vertically
It is the first datum level in plane in the front-back direction, the rotation stop plane is defined perpendicular to first datum level perpendicular to upper and lower
The plane in direction is the second datum level, and rotation stop plane and the angle of the second datum level are 30 ~ 45 degree.
The technical solution of optical fiber contact in the present invention are as follows:
The optical fiber contact of APC type optical fiber connector, part include the optical fiber contact pins that housing and rear end are provided with contact pin flange,
Contact pin flange is oriented to the housing along the longitudinal direction to be cooperated, and spring is provided between contact pin flange and housing, on contact pin flange
It is provided with the flange rotation stop fit structure with the cooperation of connector shell rotation stop, puts on be provided with and the connector shell rotation stop outside
The anti-misloading rotation stop fit structure of cooperation.
Anti- misloading rotation stop fit structure includes that one or more is set to outer convex key on outer set, on connector shell
It is provided with for the outer convex key indent keyway that upper adaptation is packed into along the longitudinal direction.
Flange rotation stop fit structure includes the cylindrical portion with rotation stop plane, and cylindrical portion and housing rotation stop guiding cooperate.
Cylindrical portion is squashed structure, and the outer peripheral surface of squashed structure by two rotation stop planes disposed in parallel and is connected to
The side composition of two rotation stop interplanars.
There are two the optical fiber contacts for setting in connector shell, and two optical fiber contacts or so arrangement, definition is vertically
It is the first datum level in plane in the front-back direction, the rotation stop plane is defined perpendicular to first datum level perpendicular to upper and lower
The plane in direction is the second datum level, and rotation stop plane and the angle of the second datum level are 30 ~ 45 degree.
The invention has the benefit that when optical fiber connector is with optical fiber connector docking is adapted in the present invention, optical fiber contact pins
It floats backward, guarantees that the end face of optical fiber contact pins and the end face for the adaptation optical fiber contact pins being adapted on optical fiber connector are reliable by spring
Fitting provides rotation stop power jointly by flange rotation stop fit structure and anti-misloading rotation stop fit structure for optical fiber contact pins, to protect
When demonstrate,proving two optical fiber connector docking, optical fiber contact pins will not enough be rotated because of rotation stop power, guarantee that the optical fiber of two docking is inserted
The fitting angle of needle will not separate, and guarantee the stability of product insertion loss, while anti-misloading rotation stop fit structure can be with
Guarantee the accuracy of setting angle when optical fiber contact installation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of APC type optical fiber connector in the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the structural schematic diagram of optical fiber contact in Fig. 1；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the left view of Fig. 3；
Fig. 6 is the structural schematic diagram of contact pin flange in Fig. 3；
Fig. 7 is the left view of Fig. 6；
Fig. 8 is the perspective view of Fig. 6；
Fig. 9 is the structural schematic diagram of protheca in Fig. 3；
Figure 10 is the left view of Fig. 9；
Figure 11 is the perspective view of Fig. 9；
Figure 12 is the structural schematic diagram of rear enclosure in Fig. 3；
Figure 13 is the left view of Figure 12；
Figure 14 is the perspective view of Figure 12；
Figure 15 is the structural schematic diagram of plug inner housing in Fig. 1；
Figure 16 is the sectional view along A-A of Figure 15；
Figure 17 is the rearview of Figure 15；
Figure 18 is the perspective view of Figure 15；
Figure 19 is the structural schematic diagram of fiber-optical socket in the present invention；
Figure 20 is the left view of Figure 19.
Specific embodiment
A kind of embodiment 1 of APC type optical fiber connector is as shown in Fig. 1 ~ 18: the optical fiber connector in the present embodiment is optical fiber
Plug, including connector shell, connector shell include plug splines shell 1 and plug inner housing 3, on plug splines shell 1
Rotation is provided with the attachment cap 2 for cooperating with socket splines shell, and there are two axis along front and back for setting in plug inner housing 3
To the contact cavity 4 of extension, two contact cavities 4 or so are arranged, are provided with light in two contact cavities 4
Fine contact 8.Optical fiber contact 8 includes the optical fiber contact pins 9 that housing and rear end are provided with contact pin flange 11, and housing is set including fission
The protheca 13 and rear enclosure 18 set, 18 tail end of rear enclosure are arranged with pressure welding case 20, and when use can crimp the aramid fiber 19 of optical cable
Between rear enclosure 18 and pressure welding case 20.Protheca 13 is threadedly coupled with rear enclosure 18, and restricted protheca is arranged in rear enclosure 18 and moves backward
The rear enclosure block land 17 of the limit, in the front side of rear enclosure block land setting crimping annular groove 16 in rear enclosure, in the complete spinning of protheca
After on to rear enclosure, the protheca at crimping annular groove can be carried out pressing processing, realize the fixation between protheca, rear enclosure.Contact pin method
Orchid 11 is stepped shaft structure, and stepped shaft structure includes first segment 10, second segment 12 and the third section 14 of sequence arrangement from front to back,
Three sections are the column construction extended along the longitudinal direction, and wherein 14 sectional dimension of third section is minimum, are arranged with bullet in third section
Spring 15, the rear end of spring 15 are withstood in rear enclosure 18, and the sectional dimension of second segment 12 is maximum, between second segment 12 and first segment 10
Step surface is used to cooperate with protheca front end block to prevent contact pin flange by deviating from front side of protheca.Wherein first segment 10 is by milling
The outer peripheral surface of the squashed structure being process, squashed structure by two rotation stop planes 24 disposed in parallel and is connected to two rotation stops
The side of interplanar forms, and side is arcwall face in the present embodiment, the front end of protheca is provided be adapted to the squashed structure before
Rotation stop hole 21 is covered, the front end of contact cavity 4 has the rotation stop hole section 27 being adapted to the squashed structure.Be provided on protheca with
The anti-misloading rotation stop fit structure of connector shell rotation stop cooperation, anti-misloading rotation stop fit structure include an outer convex key 22, are connect
It is provided on the hole wall of contact element mounting hole for the outer convex key 22 indent keyway 26 that upper adaptation is packed into along the longitudinal direction.Definition perpendicular to
Plane is the first datum level 35 in the front-back direction, and rotation stop plane 24 is defined perpendicular to first datum level perpendicular to upper and lower
To plane be the second datum level 36, the angle of rotation stop plane and the second datum level is 30 degree, the front end face 23 of optical fiber contact pins with
The angle of first datum level is 8 degree.Figure middle term 5 indicates that locating detent, locating detent are used to cooperate with block land rear end block, with
Limitation optical fiber contact moves backwards.
Encapsulating housing component 7 is provided in plug splines shell on front side of plug inside shell, in encapsulating housing component 7
It is provided with porcelain bushing, the front end of optical fiber contact pins is extend into corresponding porcelain bushing after being stretched out by male component shell.It uses
When adaptation optical fiber connector and fiber-optical socket on adaptation contact pin docked in porcelain bushing with this optical fiber contact pins, fiber-optical socket
Structure is as shown in Figure 19 ~ 20: including socket splines shell 30 and being set to the intracorporal socket inner shell 31 of socket spline shell, inserts
Adaptation optical fiber contact is provided in seat inner shell, the structure of adaptation optical fiber contact and above-mentioned optical fiber contact in the present embodiment
Part is identical, only when Optical fiber plug and fiber-optical socket are to slotting state, the rotation stop plane of two optical fiber contacts of docking
Angle is 120 degree.
In the present invention, because the area of the rotation stop plane of squashed structure is larger, and length of fit is long, thus can effectively with
Plug inside shell rotation stop cooperation, prevent optical fiber contact from rotating, it is ensured that Optical fiber plug, fiber-optical socket to it is slotting when, two light
Oblique 8 degree of angles of fine contact pin are bonded completely, guarantee the stability of product insertion loss；It is assembled in optical fiber contact and plug inner housing
When, the indent keyway rotation stop in outer convex key and plug inner housing on protheca cooperates, and can prevent the misloading of optical fiber contact；It is flat
Shape structure and the second datum level can reduce influencing each other between two optical fiber contacts at 30 degree of angles in this way, meet high
The use of density of optical fibers contact.In other embodiments of the invention: the angle of rotation stop plane and the second datum level can be with
It is other values between 45 degree or 30 ~ 45 degree；The number of optical fiber contact, which also can according to need, to be configured, such as one
A, three or other numbers；Optical fiber plug, fiber-optical socket can also be locked using other forms such as bayonet, latch hooks.
Claims (4)
1.APC type optical fiber connector, including connector shell are provided with optical fiber contact in the contact cavity of connector shell
Part, it is characterised in that: optical fiber contact includes the optical fiber contact pins that housing and rear end are provided with contact pin flange, and contact pin flange is along front and back
Direction and housing rotation stop guiding cooperate, and spring is provided between contact pin flange and housing, are provided with and connect on contact pin flange
The flange rotation stop fit structure for connecing the cooperation of device shell rotation stop puts on the mistake proofing being provided with connector shell rotation stop cooperation outside
Fill rotation stop fit structure；Anti- misloading rotation stop fit structure includes that one or more is set to outer convex key on outer set, connection
It is provided on device shell for the outer convex key indent keyway that upper adaptation is packed into along the longitudinal direction；Flange rotation stop fit structure includes
Cylindrical portion with rotation stop plane, cylindrical portion and housing rotation stop guiding cooperate, and the front end of contact cavity has for cylindrical portion
Adaptation is pierced by realize the rotation stop hole section with the cooperation of contact pin flange rotation stop；Cylindrical portion is squashed structure, the outer peripheral surface of squashed structure
It is made of two rotation stop planes disposed in parallel and the side for being connected to two rotation stop interplanars；Housing includes split settings
Protheca and rear enclosure, the front end of protheca be provided with the protheca rotation stop hole being adapted to squashed structure；Connector shell includes plug flower
Key shell and plug inner housing；The contact cavity that axis extends along the longitudinal direction there are two being arranged in plug inner housing；It connects
It is provided on the hole wall of contact element mounting hole for the outer convex key indent keyway that upper adaptation is packed into along the longitudinal direction.
2. APC type optical fiber connector according to claim 1, it is characterised in that: there are two institutes for setting in connector shell
Optical fiber contact is stated, two optical fiber contacts or so arrangement, definition is the first datum level perpendicular to plane in the front-back direction, described
For rotation stop plane perpendicular to first datum level, defining the plane perpendicular to up and down direction is the second datum level, rotation stop plane with
The angle of second datum level is 30 ~ 45 degree.
The optical fiber contact of 3.APC type optical fiber connector, it is characterised in that: the light of contact pin flange is provided with including housing and rear end
Fine contact pin, contact pin flange is oriented to the housing along the longitudinal direction to be cooperated, and spring, contact pin are provided between contact pin flange and housing
It is provided with the flange rotation stop fit structure with the cooperation of connector shell rotation stop on flange, puts on be provided with and the connector case outside
The anti-misloading rotation stop fit structure of body rotation stop cooperation；Anti- misloading rotation stop fit structure includes that one or more is set to housing
On outer convex key, be provided on connector shell for the outer convex key indent keyway that upper adaptation is packed into along the longitudinal direction；Flange
Rotation stop fit structure includes the cylindrical portion with rotation stop plane, and cylindrical portion and housing rotation stop guiding cooperate；Cylindrical portion is flat knot
Structure, the outer peripheral surface of squashed structure is by two rotation stop planes disposed in parallel and the side group for being connected to two rotation stop interplanars
At；Cylindrical portion is used to be adapted to front end and the contact pin to realize contact cavity with the rotation stop hole section of the front end of contact cavity
The cooperation of flange rotation stop；Housing includes the protheca and rear enclosure of split settings, the front end of protheca is provided be adapted to squashed structure before
Cover rotation stop hole；Connector shell includes plug splines shell and plug inner housing；There are two axis edges for setting in plug inner housing
The contact cavity that front-rear direction extends；It is provided on the hole wall of contact cavity and is adapted to for outer convex key is upper along the longitudinal direction
The indent keyway of loading.
4. optical fiber contact according to claim 3, it is characterised in that: there are two the optical fiber for setting in connector shell
Contact, two optical fiber contacts or so arrangement, definition are the first datum level perpendicular to plane in the front-back direction, and the rotation stop is flat
Face is the second datum level, rotation stop plane and the second base perpendicular to the plane of up and down direction perpendicular to first datum level, definition
The angle in quasi- face is 30 ~ 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217993.1A CN106842437B (en) | 2017-03-31 | 2017-03-31 | A kind of APC type optical fiber connector and its optical fiber contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217993.1A CN106842437B (en) | 2017-03-31 | 2017-03-31 | A kind of APC type optical fiber connector and its optical fiber contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106842437A CN106842437A (en) | 2017-06-13 |
| CN106842437B true CN106842437B (en) | 2019-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710217993.1A Active CN106842437B (en) | 2017-03-31 | 2017-03-31 | A kind of APC type optical fiber connector and its optical fiber contact |
Country Status (1)
| Country | Link |
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| CN (1) | CN106842437B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143483B (en) * | 2017-06-28 | 2022-06-17 | 中航光电科技股份有限公司 | Integrated optical fiber connector and plug shell, socket shell and shell assembly thereof |
| EP3671299B1 (en) | 2017-08-31 | 2023-02-22 | Avic Jonhon Optronic Technology Co., Ltd | Connector assembly and plug connector and core unit thereof |
| CN110609360A (en) * | 2018-09-30 | 2019-12-24 | 中航光电科技股份有限公司 | Optical fiber connector and optical fiber contact element thereof |
| CN111025489A (en) * | 2019-12-13 | 2020-04-17 | 中航光电科技股份有限公司 | Optical fiber connection structure for radio frequency optical transmission link |
| CN113093346A (en) * | 2021-03-01 | 2021-07-09 | 华为技术有限公司 | Optical cable assembly and optical fiber connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9366828B2 (en) * | 2010-03-16 | 2016-06-14 | Ofs Fitel, Llc | Systems and techniques for improving insertion loss performance of multicore fiber connectors |
| CN202013990U (en) * | 2010-12-27 | 2011-10-19 | 中航光电科技股份有限公司 | Misassemble preventing connector |
| CN104241933B (en) * | 2014-09-19 | 2016-08-31 | 中航光电科技股份有限公司 | A kind of connector and contact thereof keep body |
| CN104503035A (en) * | 2014-12-18 | 2015-04-08 | 中航光电科技股份有限公司 | Screw-joint locking optical fiber connector assembly |
| CN106383382B (en) * | 2016-08-31 | 2019-06-11 | 中航光电科技股份有限公司 | A kind of optical fiber contact and the connector using the optical fiber contact |
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2017
- 2017-03-31 CN CN201710217993.1A patent/CN106842437B/en active Active
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| CN106842437A (en) | 2017-06-13 |
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