CN104216053B - Rotary optical fiber connector - Google Patents
Rotary optical fiber connector Download PDFInfo
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- CN104216053B CN104216053B CN201310536902.2A CN201310536902A CN104216053B CN 104216053 B CN104216053 B CN 104216053B CN 201310536902 A CN201310536902 A CN 201310536902A CN 104216053 B CN104216053 B CN 104216053B
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- optical fiber
- collimator
- block
- rotor
- housing
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Abstract
The invention relates to a rotary optical fiber connector. Rotary optical fiber connector modules of the rotary optical fiber connector comprise shells, a rotor block is rotationally assembled in each shell, a central collimator is coaxially and fixedly arranged in each rotor block, a lateral collimator is arranged on each shell, a mirror base is coaxially and rotationally assembled on each rotor block, a reflecting mirror is arranged on each mirror base, is positioned at the front of the corresponding central collimator and is used for reflecting light signals emitted from the corresponding lateral collimator towards the central collimator, each mirror base comprises an armature block, a magnet is arranged on each shell, is positioned on the outer periphery of the corresponding armature block and is used for exerting acting force on the armature block so that the corresponding reflecting mirror can be fixed relative to the corresponding lateral collimator, a channel with an annular space is arranged between each magnet and the corresponding mirror base, an optical fiber of the corresponding higher-level rotary optical fiber connector module can penetrate each channel with the annular space along the front-back direction, an optical fiber through hole which is communicated with the rear end of the corresponding channel with the annular space is formed in each rotor block, and each optical fiber can penetrate the corresponding optical through hole along the front-back direction. The rotary optical fiber connector has the advantage of small radial size.
Description
Technical field
The present invention relates to the fiber rotation connector for optical signal transmission.
Background technology
Fiber rotation connector is that one kind uses optical fibers as transmission medium, by signal a rotation platform and another
The mechanism being transmitted between individual static platform, at present, the adapter of the type is being widely used in different fields.Existing
Adopting multistage corner cube prism principle some fiber rotation connectors, multi-path light is totally reflected by corner cube prism twice respectively, with reality more
Existing optical signal transmission.Existing this fiber rotation connector has problems in that：The complex structure of fiber rotation connector,
Mechanical assembly is difficult to realize, and multiple collimators are set up in parallel simultaneously, considerably increases the radial dimension of fiber rotation connector, separately
Outward, existing this fiber rotation connector at most also just can only realize the transmission of 3-4 road optical signal, if optical signal transmission line
If road is many again, the structure of whole fiber rotation connector can become complex.
Content of the invention
It is an object of the invention to provide a kind of less fiber rotation connector module of radial dimension；The purpose of the present invention
A kind of optical fiber using this fiber rotation connector module of offer is be provided.
In order to solve the above problems, in the present invention, the technical scheme of fiber rotation connector is：
The joints of optical fibre, the first connector modules including tandem setting and the second connector modules, described first
Connector modules include the first housing, are rotatably equipped with the first rotor that pivot center extends along the longitudinal direction in first shell body
Body, in the first rotor body, coaxial line is installed with the first central collimator, and described first housing is provided with the first side collimator, the
First microscope base is installed with one housing, on the first microscope base, the front in described first central collimator is provided with the first reflecting mirror,
The rear end of the first reflecting mirror has first reflecting for the optical signal projecting the first side collimator towards the first central collimator
Mirror surface；Second connector modules include the second housing being connected to the first housing rear end, are rotatably equipped with second shell body
The second rotor block being coaxially set with the first rotor body, in the second rotor block, coaxial line is installed with the second central collimator, institute
State and the second side collimator is provided with the second housing, on the second rotor block, coaxial line is rotatably equipped with the second microscope base, the second microscope base
On the front of described second central collimator is provided with the second reflecting mirror, the rear end of the second reflecting mirror has for by the second side
The second mirror surface that the optical signal that collimator projects reflects towards the second central collimator, described second microscope base includes armature block,
On the second described housing the periphery in described armature block be provided with for described armature block to apply active force with second turn
Daughter makes described second reflecting mirror second, opposite, side collimator fixing Magnet when rotating, between Magnet and described second microscope base
It is provided with the annular space passage passing through along the longitudinal direction for the optical fiber for the first connector modules, on described second rotor block
It is provided with the optical fiber through hole passing through along the longitudinal direction for described optical fiber connecting with described annular space passage rear end, described
First, the second rotor block is connected by synchronous drive mechanism Synchronous Transmission.
Described synchronous drive mechanism is included in the biography be arrangeding in parallel with corresponding central collimator of rolling assembling on each housing
Moving axis, power transmission shaft is connected by gear driving pair, chain drive pair or belt transmission auxiliary driving with respective rotor body, power transmission shaft
Front and back ends are separately provided for forward and backward with what the power transmission shaft rotation stop of higher level, subordinate's fiber rotation connector module was in transmission connection
Plug-in mounting drive mechanism.
Described first, second mirror surface is in 45 degree of angles with the axis of the first rotor body, described first, second side collimator
Axis perpendicular to respective rotor body axis.
On each rotor block, the rear side in corresponding central collimator is all installed with front optical fiber guide pad, and front optical fiber guide pad sets
It is equipped with the axial through bore passing through along the longitudinal direction for the optical fiber connecting with corresponding central collimator, crossing cutting of axial through bore axis
On face, the rear hole opening's edge of described axial through bore is in the arc of evagination, and on each rotor block, before correspondence, the rear side of optical fiber guide pad is equal
It is installed with rear optical fiber guide pad, the billiard table that described rear optical fiber guide pad submerges in corresponding axial through bore rear hole opening's edge for front end
Shape, is provided between the front end face of described rear optical fiber guide pad and the rear hole opening's edge of corresponding axial through bore for accurate with corresponding center
The guiding clearance that the optical fiber that straight device connects is guided through.
Described fiber rotation connector also includes one or after at least two orders are arranged at described second connector modules
The structure at end and described second connector module structure identical the 3rd connector modules.
Beneficial effects of the present invention are：
Beneficial effects of the present invention are：When actually used, the first mirror surface is by the optical signals first of one-level light path
Side collimator reflexes to the first central collimator, and the optical fiber being connected with the first central collimator passes through annular sky from front to back
Between optical fiber through hole on passage and the second rotor block, the optical signal of the such one-level light path light through being connected with the first central collimator
Fibre transmits backward；Optical signals the second side collimator on secondary light road is reflexed to the second central collimator by the second mirror surface,
The optical signal on secondary light road transmits backward through the optical fiber that the second central collimator connects.The optical fiber being connected with the first central collimator
With the first rotor body synchronous rotary, the optical fiber being connected with the second central collimator with the second rotor synchronous rotary, in order to avoid with
The optical fiber that first central collimator connects is interfered by the second microscope base when rotating, and the magnetic force that the second microscope base is produced by Magnet is solid
Fixed, Magnet produces active force to the armature of the second microscope base, and this active force overcomes the second rotor block when rotating to the second mirror
The moment of torsion that seat produces, makes the second microscope base not rotate with the second rotor block, the second microscope base and the second side collimation when the second rotor rotates
Device keeps being relatively fixed, thus ensureing that the optical signal being projected by the second side collimator can be reflected onto the second central collimator always
On, by magnetic force, the second microscope base is fixed so that can arrange between Magnet and the second microscope base for collimating with the first center
The annular space passage that the optical fiber that device connects passes through, is connected optical fiber with the first central collimator and is passed through by the magnetic field of Magnet, with
Optical signal transmits in a fiber, not magnetic field force induced impact.Each connector modules just can increase one-level optical signal transmission,
The central collimator of optical signal transmission at different levels is coaxially set, and this not only reduces the radial dimension of single adapter, simultaneously
The above optical signal transmission in four roads is possibly realized, only need to be sequentially connected in series connector modules.
Brief description
Fig. 1 is the structural representation of an embodiment of fiber rotation connector in the present invention；
Fig. 2 is the structural representation of the second connector modules in Fig. 1, is also fiber rotation connector mould in the present invention simultaneously
The structural representation of one embodiment of block；
Fig. 3 is the optic path principle schematic of Fig. 1；
Fig. 4 is the arrangement schematic diagram of Magnet and armature block in Fig. 1；
Fig. 5 is the Distribution of Magnetic Field schematic diagram of Magnet in Fig. 4；
Fig. 6 is the structural representation of forward and backward optical fiber guide pad in Fig. 1；
Fig. 7 is the optical fiber cabling schematic diagram of Fig. 1.
Specific embodiment
The enforcement of fiber rotation connector is for example shown in Fig. 1 ~ 7：The first adapter including order setting along the longitudinal direction
Module 2, the second connector modules 3, the 3rd connector modules 13, the 4th connector modules 14, the 5th connector modules 15 and
Six connector modules 16, wherein second, third, fourth, fifth are identical with the structure of the 6th connector modules, in the present embodiment
Its structure can be described in detail taking the second connector modules as a example, the tool of the three, the four, the 5th and the 6th connector modules
Body structure just no longer describes in detail.First connector modules include the first housing 1, are rotatably equipped with pivot center along in front and back in first shell body
The first rotor body 22 that direction extends, in the first rotor body, coaxial line is installed with the first central collimator 21, and the first housing sets
It is equipped with the first side collimator 18, the first housing is installed with the first microscope base 17, on the first microscope base before the first central collimator
Side is provided with the first reflecting mirror 19, and the rear end of the first reflecting mirror has for the optical signal projecting the first side collimator towards first
First mirror surface 20 of central collimator reflection.Second connector modules include the second housing being connected to the first housing rear end
23, in second shell body, the second rotor block 25 being coaxially set with the first rotor body is rotatably equipped with by outer rolling bearing 24,
In second rotor block, coaxial line is installed with the second central collimator 10, and the second housing is provided with the second side collimator 34, and second
On rotor block, the second microscope base 7 is rotatably equipped with by interior rolling bearing 8 coaxial line, in the second central collimator on the second microscope base
Front is provided with the second reflecting mirror 36, and the rear end of the second reflecting mirror has for the optical signal projecting the second side collimator towards the
Second mirror surface 35 of two central collimator reflections, the second microscope base includes armature block 6, in the periphery of armature block on the second housing
Be provided with for armature block to apply active force with second rotor block rotate when make the second reflecting mirror second, opposite, side collimator
Fixing Magnet 4, armature includes the iron block that two block gaps are oppositely arranged, and the back of two iron blocks is arcwall face, and Magnet includes
Two magnet pieces being correspondingly arranged with corresponding iron block respectively, two magnet pieces to opposite be also arcwall face shape with corresponding iron block
The arcwall face of shape adaptation.It is provided between Magnet and the second microscope base and wear along the longitudinal direction for the optical fiber for the first connector modules
The annular space passage 5 crossed, the second rotor block is provided with confession the first connector modules being connected with annular space passage rear end
The optical fiber through hole 9 that passes through along the longitudinal direction of optical fiber.First, second rotor block is connected by synchronous drive mechanism Synchronous Transmission,
Synchronous drive mechanism is included in the power transmission shaft 29 be arrangeding in parallel with corresponding central collimator of rolling assembling on each housing, power transmission shaft
Pass through gear driving pair with respective rotor body（Or chain drive pair or belt transmission pair）It is in transmission connection, gear driving pair includes solid
Little gear 32 on corresponding power transmission shaft and the gear wheel 50 being fixedly arranged on respective rotor body, large and small meshed transmission gear.Pass
The front and back ends of moving axis are separately provided for being in transmission connection with the power transmission shaft rotation stop of higher level, subordinate's fiber rotation connector module
Forward and backward plug-in mounting drive mechanism, front plug-in mounting drive mechanism be drive sleeve 31, drive sleeve offers the spline axially extending
30, rear plug-in mounting drive mechanism is for the spline block 33 with corresponding spline rotation stop plug-in mounting.First, second mirror surface is 45
Degree mirror surface, the axis of described first, second side collimator is perpendicular to the axis of respective rotor body.In correspondence on each rotor block
The rear side of central collimator is all installed with front optical fiber guide pad 11, front optical fiber guide pad is provided with and supplies and corresponding central collimator
The axial through bore 26 that the optical fiber connecting passes through along the longitudinal direction, after described axial through bore on the section crossing axial through bore axis
Stomidium opening's edge 27 is in the arc of evagination, and on each rotor block, before correspondence, the rear side of optical fiber guide pad is all installed with rear optical fiber guide pad
12, the billiard table shape that rear optical fiber guide pad submerges in front end in corresponding axial through bore rear hole opening's edge, the front end of rear optical fiber guide pad
It is provided between face and the rear hole opening's edge of corresponding axial through bore and supply the optical fiber being connected with corresponding central collimator to be guided through
Guiding clearance.The module of each adapter is installed together by long bolt 28.
The field of magnetic forece being produced by Magnet in the present invention fixing the second microscope base so that when the second rotor block rotates, the
The straight device of two microscope base second, opposite, side is fixed, and the second reflecting mirror does not rotate with the second rotor block, and magnetic field force is more than the second rotor block pair
The active force that second microscope base produces；When housing relative rotor body rotates, under the action of a magnetic force, microscope base is same with side collimator
Step rotation, ensure that the optical signal that side collimator projects is reflected in corresponding central collimator all the time.This also just can be
The annular space passage that between second Magnet and the second microscope base, setting passes through for corresponding optical fiber, passes through magnetic field space with optical signal
Shi Buhui is interfered, and in rotation process, at a time optical fiber can block the partly light of the injection of the second side collimator to optical fiber
Signal, make the rotationally-varying quantitative change of insertion loss big, but this waste be less than 2dB, belongs to tolerance interval, in order to the greatest extent may be used
The minimizing waste of energy, can suitably select the less optical fiber of diameter.The opposite face of forward and backward optical fiber guide pad is arcwall face, this
When optical fiber connects up, optical fiber can be prevented by right-angle bending, prevent from being cut by the corner of part when optical fiber and other feature contacts simultaneously
Disconnected.
The use process of this fiber rotation connector is：By long bolt, each connector modules are installed from front to back
Come, the rear end rotation stop plug-in mounting of the power transmission shaft of the front end of the power transmission shaft of single connector modules and higher level's connector modules, single company
Connect the front end rotation stop plug-in mounting of the rear end of power transmission shaft of device module and the power transmission shaft of subordinate's connector modules, each adapter is ensured with this
The rotor block synchronous axial system of module.Optical fiber on first connector modules refer to be connected with the first central collimator for one-level
First optical fiber 37 of optical signal transmission, the like optical fiber on the second connector modules be referred to as the second optical fiber the 38, the 3rd and connect
Optical fiber on optical fiber in device module referred to as the 3rd optical fiber 39, the 4th connector modules is referred to as the 4th optical fiber 40, the 5th adapter
Optical fiber on optical fiber in module referred to as the 5th optical fiber 41, the 6th connector modules is referred to as six fiberses 42, during wiring, the first light
The fine annular space entering the second connector modules through the guiding clearance between the forward and backward oriented module on the first connector modules
Passage and optical fiber through hole, then the annular space passage through rear side connector modules at different levels and optical fiber through hole transmit always backward；
Second optical fiber enters the annular of the 3rd link block through the guiding clearance between the forward and backward oriented module on the second connector modules
Spatial channel and optical fiber through hole, the then annular space passage through rear side connector modules at different levels and optical fiber through hole back kick always
Defeated, the 3rd optical fiber, the wiring configuration of the 4th optical fiber, the 5th optical fiber and six fiberses the like.
In the other embodiments of this fiber rotation connector：According to practical situation, when needing two-stage optical signal transmission,
Only the first connector modules and the second connector modules need to be arranged, when needing other series optical signal transmission, can suitably select
Select the number of connector modules, such as three, four, seven, eight or other number；The mirror surface angle of each reflecting mirror
May not be 45 degree but other angle, now the axis of respective side collimator will be no longer vertical with the axis for rotor block
Directly, but be inclined to certain angle corresponding, this angle allows the corresponding mirror surface will be anti-for the optical signal of respective side collimator
It is incident upon in corresponding central collimator；Front plug-in mounting spline structure can also be the drive sleeve with interior square hole, and corresponding rear plug-in mounting stops
Rotation structure can also be the outer square shaft of the plug-in mounting that coincide with corresponding drive sleeve；Magnet and armature can also be other shapes, as long as full
Sufficient Magnet be enough to the active force overcoming respective rotor body that corresponding microscope base is produced to the active force of armature.
Claims (5)
1. fiber rotation connector it is characterised in that：The first connector modules including tandem setting and the second adapter
Module, described first connector modules include the first housing, be rotatably equipped with pivot center and prolong along the longitudinal direction in first shell body
The first rotor body stretched, in the first rotor body, coaxial line is installed with the first central collimator, and described first housing is provided with
Side collimator, the first housing is installed with the first microscope base, and on the first microscope base, the front in described first central collimator is arranged
There is the first reflecting mirror, the rear end of the first reflecting mirror has for collimating the optical signal of the first side collimator injection towards the first center
First mirror surface of device reflection；Second connector modules include the second housing being connected to the first housing rear end, the second housing
Inside it is rotatably equipped with the second rotor block being coaxially set with the first rotor body, in the second rotor block, coaxial line is installed with second
Heart collimator, described second housing is provided with the second side collimator, on the second rotor block, coaxial line is rotatably equipped with the second mirror
Seat, on the second microscope base, the front in described second central collimator is provided with the second reflecting mirror, and the rear end of the second reflecting mirror has
The second mirror surface reflecting towards the second central collimator for the optical signal projecting the second side collimator, described second microscope base
Including armature block, on the second described housing, the periphery in described armature block is provided with for described armature block to apply active force
To make the fixing Magnet of described second reflecting mirror second, opposite, side collimator when the second rotor block rotates, Magnet and described the
It is provided with the annular space passage passing through along the longitudinal direction for the optical fiber for the first connector modules between two microscope bases, described
The optical fiber passing through along the longitudinal direction for described optical fiber being connected with described annular space passage rear end is provided with two rotor blocks lead to
Hole, described first, second rotor block is connected by synchronous drive mechanism Synchronous Transmission.
2. fiber rotation connector according to claim 1 it is characterised in that：Described synchronous drive mechanism is included in each shell
The power transmission shaft be arrangeding in parallel with corresponding central collimator of rolling assembling on body, power transmission shaft passes through gear drive with respective rotor body
Secondary, chain drive is secondary or belt transmission auxiliary driving connects, and the front and back ends of power transmission shaft are separately provided for and higher level, subordinate's light
The forward and backward plug-in mounting drive mechanism that the power transmission shaft rotation stop of fine rotary connector module is in transmission connection.
3. fiber rotation connector according to claim 1 it is characterised in that：Described first, second mirror surface and
The axis of one rotor block is in 45 degree of angles, and the axis of described first, second side collimator is perpendicular to the axis of respective rotor body.
4. fiber rotation connector according to claim 1 it is characterised in that：In corresponding central collimator on each rotor block
Rear side be all installed with front optical fiber guide pad, front optical fiber guide pad is provided with for and corresponding central collimator connection optical fiber edge
The axial through bore that fore-and-aft direction passes through, on the section crossing axial through bore axis, the rear hole opening's edge of described axial through bore is in evagination
Arc, on each rotor block, before correspondence, the rear side of optical fiber guide pad is all installed with rear optical fiber guide pad, described rear optical fiber guiding
The billiard table shape that block submerges in corresponding axial through bore rear hole opening's edge for front end, the front end face of described rear optical fiber guide pad and respective shaft
It is provided with, between the rear hole opening's edge of perforation, the guiding clearance being guided through for the optical fiber connecting with corresponding central collimator.
5. the fiber rotation connector according to claim 1 ~ 4 any one it is characterised in that：Described fiber spinning connects
Device also includes one or at least two orders are arranged at the structure of described second connector modules rear end and described second adapter
Modular structure identical the 3rd connector modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310536902.2A CN104216053B (en) | 2013-11-04 | 2013-11-04 | Rotary optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310536902.2A CN104216053B (en) | 2013-11-04 | 2013-11-04 | Rotary optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104216053A CN104216053A (en) | 2014-12-17 |
| CN104216053B true CN104216053B (en) | 2017-02-15 |
Family
ID=52097744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310536902.2A Active CN104216053B (en) | 2013-11-04 | 2013-11-04 | Rotary optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104216053B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759360A (en) * | 2016-04-29 | 2016-07-13 | 中航光电科技股份有限公司 | Fiber connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4725116A (en) * | 1985-08-14 | 1988-02-16 | Nova Scotia Research Foundation Corp. | Multiple pass optical rotary joint |
| CN101344617A (en) * | 2008-08-28 | 2009-01-14 | 中航光电科技股份有限公司 | Optical fibre collimation component and switching type single-core optical fiber rotating connector |
| CN102914824A (en) * | 2012-11-15 | 2013-02-06 | 深圳市晶沛电子有限公司 | Light transmission slip ring for remote monitoring |
| CN103018839A (en) * | 2012-11-29 | 2013-04-03 | 天津大学 | Novel double-path optical fiber rotary connector |
-
2013
- 2013-11-04 CN CN201310536902.2A patent/CN104216053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4725116A (en) * | 1985-08-14 | 1988-02-16 | Nova Scotia Research Foundation Corp. | Multiple pass optical rotary joint |
| CN101344617A (en) * | 2008-08-28 | 2009-01-14 | 中航光电科技股份有限公司 | Optical fibre collimation component and switching type single-core optical fiber rotating connector |
| CN102914824A (en) * | 2012-11-15 | 2013-02-06 | 深圳市晶沛电子有限公司 | Light transmission slip ring for remote monitoring |
| CN103018839A (en) * | 2012-11-29 | 2013-04-03 | 天津大学 | Novel double-path optical fiber rotary connector |
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| CN104216053A (en) | 2014-12-17 |
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