CN102798940A - Optical fiber connector being capable of floating axially and manufacturing method thereof - Google Patents
Optical fiber connector being capable of floating axially and manufacturing method thereof Download PDFInfo
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- CN102798940A CN102798940A CN2012102999482A CN201210299948A CN102798940A CN 102798940 A CN102798940 A CN 102798940A CN 2012102999482 A CN2012102999482 A CN 2012102999482A CN 201210299948 A CN201210299948 A CN 201210299948A CN 102798940 A CN102798940 A CN 102798940A
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- joints
- shell
- optical fibre
- insertion core
- ceramic insertion
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Abstract
The invention discloses an optical fiber connector being capable of floating axially, which comprises a shell, a locating ring, a spring and a ceramic ferrule, wherein the ceramic ferrule is fixed in the round inner bore of the shell at least in part; a rear positioning device is arranged at the rear part of the shell, and a front positioning device is arranged at the front part of the shell; a track in which the locating ring and the spring slide is arranged between the front positioning device and the rear positioning device of the shell; the spring and the locating ring are connected one after another and limited between the front positioning device and the rear positioning device of the shell; the front end of the spring leans against the front positioning device; the axial position of the locating ring is limited through the rear positioning device under the action of the spring; and the ceramic ferrule is positioned in the space formed by the cavity of the spring at least in part. The optical fiber connector being capable of floating axially is compact in structure and short in axial length, so that the space occupied in the equipment is small.
Description
Technical field
But the present invention relates to a kind of joints of optical fibre of axial float, but also relate to a kind of manufacturing approach of the joints of optical fibre of axial float, belong to joints of optical fibre technical field.
Background technology
At present, optical fiber technology is widely used in technical fields such as Aeronautics and Astronautics, radar, communication, and the joints of optical fibre have also obtained using widely.
As shown in Figure 1, form by parts such as shell 10, locating ring 20, spring 30, ceramic insertion core 50, ceramic locating sleeve 60, locating sleeves 70 according to the joints of optical fibre of prior art.Locating sleeve 70 interference fit are on shell 10; And with the step stationary positioned ring 20 of shell 10 rear end parts; And locating ring 20 joins with spring 30; The remainder of the joints of optical fibre can axially float under the effect of spring 30 with respect to locating ring 20, guarantees the closed butt joint between the joints of optical fibre.
The development trend of electric connector is miniaturization, microminiaturization, compact conformation, and the joints of optical fibre are no exception, need miniaturization along with the miniaturization of system equipment, and the joints of optical fibre that use at present, axial length L 1 is longer, and it is bigger to take up room.
Summary of the invention
But the joints of optical fibre that the purpose of this invention is to provide a kind of axial float, its compact conformation, axial length is shorter, and the space that takies equipment is less, uses more extensive.
But another object of the present invention provides a kind of manufacturing approach of the joints of optical fibre of axial float, and it can avoid further increasing the length of ceramic insertion core.
For this reason; According to an aspect of the present invention, but a kind of joints of optical fibre of axial float are provided, it comprises shell, locating ring, spring and ceramic insertion core; Ceramic insertion core is fixed in the circular inner hole of shell at least in part; The rear portion of shell is provided with post-positioning device, and the front portion of shell is provided with the prelocalization device, is provided with between the prelocalization device of shell and the post-positioning device to be used for the track that locating ring and spring slide; Join before and after spring and the locating ring between the prelocalization device and location, back that is defined in shell; The front end of spring is resisted against on the prelocalization device, and locating ring limits its axial position through post-positioning device under the effect of spring, and described ceramic insertion core is in the space that inner chamber surrounded of spring at least in part.
Preferably; Said shell comprises rear casing and front casing, and post-positioning device is arranged on the rear casing, and the prelocalization device is arranged on the front casing; Ceramic insertion core is individually fixed in the circular hole of rear casing and front casing; Described be used for track that locating ring and spring slide and comprise before track and back track, preceding track is arranged on the front casing, back track is arranged on the rear casing.
Preferably, described locating device is the end face that is fixed on the locating sleeve on the shell, or described locating device is end face or step surface on the shell.
Preferably, but the joints of optical fibre of described axial float also comprise the lock pin locating sleeve, and this lock pin locating sleeve is located between the inner peripheral surface of outer peripheral face and shell of ceramic insertion core regularly.
Preferably, but the joints of optical fibre of described axial float also comprise the lock pin locating sleeve, and this lock pin locating sleeve removably is engaged on the outer peripheral face of ceramic insertion core.
Preferably, described before track be the pipe shape part that one constitutes with the back track, or preceding track is integrally formed on the front casing with the back track or on the rear casing.
Preferably, described preceding track is the external cylindrical surface of part at least of ceramic insertion core with the back track.
Preferably, described front casing is pipe shape or loop configuration body.
Preferably, described rear casing and front casing pass through back track and preceding track close proximity,
Preferably, described preceding track is identical with the external diameter of back track,
Preferably, described ceramic insertion core difference interference fit is in the circular hole of rear casing and front casing.
Preferably, to be fixed on the length beyond the rear casing be 20-30mm to described ceramic insertion core.
According to another aspect of the present invention, but a kind of manufacturing approach of the joints of optical fibre of axial float is provided, the butt end that comprises the milled ceramic lock pin is the sphere of evagination; The shell of these joints of optical fibre comprises rear casing and front casing, and rear casing is interference fitted on the ceramic insertion core, after optical fiber is fixedly connected on ceramic insertion core; Ceramic insertion core is fixed in the rear casing, then, carries out the grinding of ceramic insertion core; Afterwards, assemble other parts that comprise front casing again.
But according to the joints of optical fibre of axial float of the present invention, its compact conformation, axial length is shorter, and therefore, the space that takies equipment is less.
Description of drawings
Fig. 1 is the structural representation according to the joints of optical fibre of background technology.
Fig. 2 is the structural representation according to an embodiment of the joints of optical fibre of the present invention.
Fig. 3 is the structural representation according to another embodiment of the joints of optical fibre of the present invention.
Fig. 4 is the structural representation according to another embodiment of the joints of optical fibre of the present invention.
Embodiment
Below in conjunction with accompanying drawing the compact conformation of the present invention and the joints of optical fibre with axial float function are done further detailed description:
As shown in Figure 1, the joints of optical fibre of prior art comprise shell 10, locating ring 20, spring 30 and ceramic insertion core 50, and ceramic insertion core 50 is fixed in the circular inner hole of shell 10 at least in part; The rear portion of shell 10 is provided with post-positioning device, and this post-positioning device is and the front end face of the locating sleeve 70 of shell 10 interference fit that the front portion of shell 10 is provided with the prelocalization device; This prelocalization device is a step surface 101, be provided with between the prelocalization device of shell and the post-positioning device to be used for the track that locating ring 20 and spring 30 slide, spring 30 and locating ring 20 front and back join the prelocalization device that is defined in shell 10 with afterwards locate between; The front end of spring 30 is resisted against on the prelocalization device; Locating ring 20 limits its axial position through post-positioning device under the effect of spring 30, the joints of optical fibre of prior art comprise a lock pin locating sleeve 60 in addition, removably are matched with on the ceramic insertion core 50; Join with shell 10; The total length of the joints of optical fibre is L1, because ceramic insertion core 50 need guarantee that certain length is arranged, so that shell 10 can be fixed; Simultaneously; The clamping of 20mm frock clamp when the length of 30mm is used to grind also need be arranged in addition, therefore, want its contraction in length not easy.According to the joints of optical fibre of the present invention; Change prior art and since the midium or long term ceramic insertion core 50 held and be fixed in the front end of shell 10; And be positioned at the present situation beyond the front end of spring 30; Ceramic insertion core is provided with in the space that inner chamber surrounded that is in spring 30 at least in part, thereby, the axial length of the joints of optical fibre reduced.
As shown in Figures 2 and 3; According to the compact conformation of the present invention and the joints of optical fibre with axial float function; The shell 10 of the joints of optical fibre is set to front and back two parts, and previous section is a front casing 4, and aft section is a rear casing 1; And ceramic insertion core 5 being arranged in the shell and spring 3 of rear casing 1 and front casing 4 compositions, is L2 with the axial length that reduces the joints of optical fibre.For the axial length with the joints of optical fibre is reduced to L2; Contribution on the one hand comes from ceramic insertion core 5 is arranged in the shell and spring 3 of rear casing 1 and front casing 4 compositions; The another one aspect comes from shell 10 of the prior art is set to front and back two parts; Because the joints of optical fibre must have the grinding step of one ceramic insertion core 5, promptly the butt end of milled ceramic lock pin 5 is the operation of the sphere of evagination, the joints of optical fibre of prior art as shown in Figure 1; Be after overall optical fiber connector (being unkitted ceramic locating sleeve 60) is assembled, grind again after grasping ceramic insertion core 5 through frock clamp.The joints of optical fibre of the present invention are provided with front casing 4 and rear casing 1; Therefore; Can, ceramic insertion core 5 grasp ceramic insertion core 5 backs through frock clamp it is ground, and then assembling comprise other parts of front casing 4 after be assembled on the rear casing 1.Thereby further reduced the length of ceramic insertion core 5, reduced the axial length of the joints of optical fibre.
Like Fig. 2 is the structural representation according to an embodiment of the joints of optical fibre of the present invention; The compact conformation of the present invention and the joints of optical fibre with axial float function comprise rear casing 1, front casing 4, locating ring 2, spring 3, ceramic insertion core 5; Rear casing 1 is provided with post-positioning device; This post-positioning device is that step surface 11 front casings 4 that are located on the rear casing 1 are provided with the prelocalization device; This prelocalization device is the step surface 41 that is located on the front casing 4, and ceramic insertion core 5 is individually fixed in the circular hole of rear casing 1 and front casing 4, is used for locating ring 2 and comprises preceding track 12 and back track 42 with the track that spring 3 slides; Preceding track 42 is arranged on the front casing 4, and back track 12 is arranged on the rear casing 1.But the joints of optical fibre of described axial float; Also comprise lock pin locating sleeve 6; This lock pin locating sleeve 6 is located between the inner peripheral surface of outer peripheral face and front casing 4 of ceramic insertion core 5 regularly; It is fixed that the front end of lock pin locating sleeve 6 through front casing 4 turns over rivet clasp, in the assembling and use of described optical fiber contact, in case lock pin locating sleeve 6 landing from the contact element.
The described joints of optical fibre; Remainder except locating ring 2 can axially float under the effect of spring 3 with respect to locating ring 2; Thereby when guaranteeing that two joints of optical fibre butt joints plug together; Two ceramic insertion cores 5 are realized fiber end face closed butt joint applying through 6 butt joints of lock pin locating sleeve, reduce the loss of optical communication.
Preferably, described rear casing 1 passes through back track 12 and preceding track 42 close proximity with front casing 4, positions so that front casing 4 in assembling process, directly is abutted against in rear casing 1, and other anchor clamps need be set position,
Preferably, described ceramic insertion core 5 interference fit respectively is provided with step on the ceramic insertion core 5 and shell is fixed and not be used in the circular hole of rear casing 12 and front casing 42, make that described optical connector is simple in structure.
Preferably, described preceding track 42 is identical with the external diameter of back track 12, guarantees that described locating ring 2 slides in orbit unblocked hindering with spring 3.
In another embodiment; As shown in Figure 3; The compact conformation of the present invention and the joints of optical fibre with axial float function comprise that rear casing 1, front casing 4, locating ring 2, spring 3, ceramic insertion core 5, described ceramic insertion core 5 interference fit are fixed in rear casing 1 and the front casing 4, and locating ring 2 and spring 3 join each other from back to front and be defined between rear casing 1 and the front casing 4.The described joints of optical fibre; Remainder except locating ring 2 can axially float under the effect of spring 3 with respect to locating ring 2; Thereby when guaranteeing that two joints of optical fibre butt joints plug together; Two ceramic insertion cores 5 are realized fiber end face closed butt joint applying through 6 butt joints of lock pin locating sleeve, reduce the loss of optical communication.
Can closely connect between described rear casing 1 and the front casing 4, also can only join through the compression of spring 3.Preferably; Rear casing 1 and front casing 4 are except joining through the compression of spring 3; Also can in locating ring 2 and spring 3, join front and back, and on rear casing 1 and the front casing 4 external cylindrical surface of same diameter is set, locating ring 2 is placed on the external cylindrical surface of this same diameter with spring 3; Locating ring 2 limits its axial location through the step surface 11 of rear casing 1, and spring 3 limits its axial location through the step surface 41 of front casing 4.
Described lock pin locating sleeve 6 pivot bush units join with front casing 4 on the outer peripheral face of ceramic insertion core 5.
As shown in Figure 3, the joints of optical fibre of the present invention can not have described lock pin locating sleeve 6.
In another embodiment; As shown in Figure 4; The compact conformation of the present invention and the joints of optical fibre with axial float function do not have the described preceding track 42 that is arranged on the front casing 4, are not arranged at the back track 12 on the rear casing 1 yet; But front casing 4 can be a loop configuration body; Interference fit is fixed in the axial ad-hoc location of ceramic insertion core 5, and being used for locating ring 2 is a part of external cylindrical surface of ceramic insertion core 5 with the track that spring 3 slides, be used to limit locating ring 2 and spring 3 axial displacement be the rear end face 41 of front casing 4 and the front end face 11 of rear casing 1.
Preferably, compact conformation of the present invention and the length with the ceramic insertion core 5 in the joints of optical fibre of axial float function be 20mm to 30mm, the length that ceramic insertion core 5 is interference fitted in the rear casing 1 is that 5mm is to 8mm
Claims (10)
1. but the joints of optical fibre of an axial float; It comprises shell, locating ring, spring and ceramic insertion core; Ceramic insertion core is fixed in the endoporus of shell at least in part, and the rear portion of shell is provided with post-positioning device, and the front portion of shell is provided with the prelocalization device; Be provided with between the prelocalization device of shell and the post-positioning device and be used for locating ring and slide the track with telescopic spring; Spring and locating ring are between the prelocalization device and post-positioning device of shell, and the front end of spring is resisted against on the prelocalization device, and locating ring is resisted against on the post-positioning device under the effect of spring; It is characterized in that described ceramic insertion core is in the space that inner chamber surrounded of spring at least in part.
2. the joints of optical fibre as claimed in claim 1 is characterized in that said shell comprises rear casing and front casing; Post-positioning device is arranged on the rear casing; The prelocalization device is arranged on the front casing, and ceramic insertion core is individually fixed in the endoporus of rear casing and front casing, described be used for locating ring and slide track with telescopic spring and comprise before track and back track; Preceding track is arranged on the front casing, and back track is arranged on the rear casing.
3. according to claim 1 or claim 2 the joints of optical fibre it is characterized in that described locating device is the end face that is fixed on the locating sleeve on the shell, or described locating device are end face or step surface on the shell.
4. according to claim 1 or claim 2 the joints of optical fibre is characterized in that, also comprise the lock pin locating sleeve, and this lock pin locating sleeve is located between the inner peripheral surface of outer peripheral face and shell of ceramic insertion core regularly.
5. according to claim 1 or claim 2 the joints of optical fibre is characterized in that also comprise the lock pin locating sleeve, this lock pin locating sleeve removably is engaged on the outer peripheral face of ceramic insertion core.
6. the joints of optical fibre as claimed in claim 2 is characterized in that, described before track be the tubular member that one constitutes with the back track, or preceding track is integrally formed on the front casing with the back track or on the rear casing.
7. the joints of optical fibre as claimed in claim 2 is characterized in that, described preceding track is the external cylindrical surface of part at least of ceramic insertion core with the back track.
8. the joints of optical fibre as claimed in claim 2 is characterized in that, described front casing is pipe shape or loop configuration body.
9. the joints of optical fibre as claimed in claim 2; It is characterized in that; Described rear casing and front casing are through back track and preceding track close proximity, and described preceding track is identical with the external diameter of back track, and described ceramic insertion core difference interference fit is in the circular hole of rear casing and front casing.
10. but the manufacturing approach of the joints of optical fibre of an axial float comprises that the butt end of milled ceramic lock pin is the sphere of evagination, it is characterized in that; The shell of these joints of optical fibre comprises rear casing and front casing, and rear casing is interference fitted on the ceramic insertion core, after optical fiber is fixedly connected on ceramic insertion core; Ceramic insertion core is fixed in the rear casing, then, carries out the grinding of ceramic insertion core; Afterwards, assemble other parts that comprise front casing again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102999482A CN102798940A (en) | 2012-08-22 | 2012-08-22 | Optical fiber connector being capable of floating axially and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102999482A CN102798940A (en) | 2012-08-22 | 2012-08-22 | Optical fiber connector being capable of floating axially and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102798940A true CN102798940A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102999482A Pending CN102798940A (en) | 2012-08-22 | 2012-08-22 | Optical fiber connector being capable of floating axially and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102798940A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274727A (en) * | 1997-02-25 | 1998-10-13 | Lucent Technol Inc | Optical fiber connector improved in return loss characteristic and manufacturing method thereof |
| CN101201436A (en) * | 2007-07-23 | 2008-06-18 | 江苏宇特光电科技有限公司 | Fiber joints |
| CN101609182A (en) * | 2008-06-20 | 2009-12-23 | 中航光电科技股份有限公司 | Optical fiber contact |
-
2012
- 2012-08-22 CN CN2012102999482A patent/CN102798940A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274727A (en) * | 1997-02-25 | 1998-10-13 | Lucent Technol Inc | Optical fiber connector improved in return loss characteristic and manufacturing method thereof |
| CN101201436A (en) * | 2007-07-23 | 2008-06-18 | 江苏宇特光电科技有限公司 | Fiber joints |
| CN101609182A (en) * | 2008-06-20 | 2009-12-23 | 中航光电科技股份有限公司 | Optical fiber contact |
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Application publication date: 20121128 |