CN101806940B - Optical fiber field connector - Google Patents
Optical fiber field connector Download PDFInfo
- Publication number
- CN101806940B CN101806940B CN2010101492490A CN201010149249A CN101806940B CN 101806940 B CN101806940 B CN 101806940B CN 2010101492490 A CN2010101492490 A CN 2010101492490A CN 201010149249 A CN201010149249 A CN 201010149249A CN 101806940 B CN101806940 B CN 101806940B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- main body
- fiber
- pedestal
- face
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an optical fiber field connector. A dismountable sleeve bin is sleeved outside a main body; the main body and the dismountable sleeve bin are provided with standard type interfaces; the main body is in a hollow structure; an optical fiber core insert is arranged at the front end of the main body; a preset optical fiber is arranged in the optical fiber core insert; a tail sleeve is arranged at the back end of the optical fiber core insert; a mechanical joint consisting of a substrate, a splint and a lantern ring is arranged in the main body; the front end of the mechanical joint is abutted with the optical fiber core insert, and the back end of the mechanical joint is connected with the tail sleeve through a guiding device and a damping device; a second optical fiber is arranged in the tail sleeve; and an outer protecting sleeve adopts a rotary screw thread structure to clamp the tail sleeve to prevent the second optical fiber from falling off and sliding. In the optical fiber field connector of the invention, the second tail end of the preset optical fiber is connected with the second optical fiber, a connection protecting box is not needed, storage protection for a bare optical fiber is unnecessary, when the optical fiber field connector is assembled, a special tool and grinding are not needed, whether the connection is successful can be detected at the field, and after installation, the field connector can be repeatedly opened for use.
Description
Technical field
The present invention relates to the connector in the fibre-optic transmission system (FOTS), is a kind of optical fiber field connector specifically, refers to be applicable to field erected optical fiber field connector and installation component thereof especially.
Background technology
Optical fiber has been widely used for plurality of application scenes in telecommunications industry.Optical fiber is close to unlimited bandwidth potential and makes its perfect medium that becomes comprehensive carrying miscellaneous service, the concentric cable before progressively having substituted.Along with the large-scale application of FTTH (Fiber to the home), a large amount of fiber alignment scenes appears inevitably.Relative copper cable, the optical fiber cable material is very cheap, if but adopt traditional mode to connect optical fiber, its cost but wants high more than the copper cable link cost.For example, need the very high active welder of cost; Need power supply during connection, construction inconvenience in corridor or users home; The optical fiber tie point needs the bigger slack protection box of volume; Tie point is to slack treatment procedures length consuming time etc.
Existing fiber alignment mode mainly contains two kinds: welding and mechanical connection.
The mode of fused fiber splice butt joint is to adopt heat sealing machine that fiber fuse is docked, and optical fiber adopts this mode to dock the low advantage of loss, but this mode has following shortcoming:
1) apparatus expensive.Because heat sealing machine is complicated high precision equipment, so fetch long price.
2) higher to environment requirement.Heat sealing machine must be furnished with power supply, will occur the problem of more difficult power taking in the open air when constructing.Welding is indoor can not to have dust, needs clean environment.Because heat sealing machine is heavier, also is precision equipment, must be placed on firm vibrationless platform, so can't adapt to the construction of small spaces such as hoistway.
3) applicability is relatively poor.All there are requirement, the kind of optical fiber and quality discrepancy to reduce to the excentricity of optical fiber, round partially rate, material, fusing point or the like during the heat sealing machine welding and are fused into power.
4) to the having relatively high expectations of operator, weld time is long.Operation to heat sealing machine requires very strictness, will carry out the training in early stage to operating personnel, and the running time of welding simultaneously is long.
5) can't reuse.If the welding failure can only be cut welding section optical fiber, scrap the hot melt protective casing simultaneously, increased Master Cost and engineering time.
6) poor to the protective capability of optical fiber.The protective capability of hot melt protective casing is limited, can not bear bigger axially with side direction pulling force and pressure, when applied external force during above certain limit, phenomenons such as the big even disconnected fibre of attenuation appear easily.
The mechanical fiber optic ways of connecting is to adopt the end face butt joint of the method for mechanical fixation with two optical fiber, can be divided into following several kinds:
1) optical fiber cold connector
2) optical fiber field connector
The optical fiber cold connector is directly to fix two optical fiber that need termination through sheet metal or the sheet that compresses doubling at the scene.This connected mode has following shortcoming:
1) is generally one-shot forming, can't reuses basically.
2) can't observe the butt joint quality of optical fiber intuitively.
3) no afterbody optical fiber locking device makes that in engineering construction and scheduling, outside tractive force can make and produce the gap at two optical fiber binding face places, cause quality of connection seriously to descend.
4) poor to the protective capability of optical fiber, can not bear bigger axially with side direction pulling force and pressure, when applied external force during above certain limit, phenomenons such as the big even disconnected fibre of attenuation appear easily.
The optical fiber field termination technology is the optical fiber distribution frame with outside plant technology of FTTH technology developed country main flow.This product has mainly been followed two main standard in the world: Telcordia GR-1081-CORE and Telcordia GR-326-CORE.The GR-1081-CORE standard has provided realization technology, definition and the application scenarios of field connector; General requirement to product has been described; Its method of testing generally meets the requirement of GR-326-CORE standard, therefore, in the world the field connector product generally is used by above-mentioned two standards.Two kinds of field erected flexible jumpers have been defined among the GR-1081-CORE: single tie point connector and multiconnection point connector.Single tie point connector is a kind ofly to make two optical fiber in connection procedure, have only the flexible jumper of a tie point.This connector generally is the optical fiber connector plug in factory-assembled.The multiconnection point connector is a kind ofly to make two optical fiber in connection procedure, has the flexible jumper of the very little tie point of a plurality of spacings.Typical this type of connector is the connector plug that presets optical fiber.In this connector plug, short section of optical fiber is preset in the contact pin body of connector, and the optical fiber in the subscriber optical cable connects with presetting optical fiber.In the AN connector group of having used a multiconnection point connector plug; There are two tie points that spacing is very little; One is fixing splicing point; Another is the contact point of two contact pin body end faces, in the AN connector group of having used two multiconnection point connector plugs, has three tie points that spacing is very little.
Optical fiber field connector is the optimal selection of optical cable construction of registering one's residence.Construction stage, indoor at access point and user, the optical cable of registering one's residence all can adopt field connector Cheng Duan.When the cable fault took place to break the optical cable of registering one's residence, available field connector was repaired circuit fast, need not to change optical cable.
The field-installed joints of optical fibre have following several kinds of implementations:
1) field connector of face off not
2) field connector of on-site grinding end face
3) field connector of the pre-buried optical fiber of factory
The field connector of face off is not a kind of single tie point connector, does not carry out fiber end face in factory and grinds, and does not grind fiber end face at the construction field (site) yet.Connect in the body and do not preset optical fiber, field optical fibers connects the contact pin body fully.Present domestic a kind of uncommon way that occurred is promptly carried out the end face cutting to the optical fiber in the subscriber optical cable at the scene, optical fiber is directly inserted ceramic insertion core, but the end face of connector grinds no longer at the scene and checks.
The basic geometric parameter of connector pottery end face mainly contains: end face radius-of-curvature, apex offset amount, the concavo-convex amount of optical fiber.Maybe be extremely coarse or can not see fiber end face without the connector fibre core end face that grinds, following problems can appear in unstable properties during with other connectors couplings:
1) can't guarantee that the apex offset amount in the scope of regulation, can cause optical fiber not contact fully, influence the reliability of light transmission.
2) can't guarantee that the concavo-convex amount of optical fiber is in the scope of regulation.Too high like optical fiber protrusion amount, when docking with other joint, the main extruding force of spring can be applied on the optical fiber, makes the optical fiber of protrusion produce excessive deformation or cracked, seriously influences transport property.Too much like the optical fiber amount of recess, even pottery produces slight deformation under the spring extruding, also deficiency is so that optical fiber contact in both sides can have a strong impact on transport property equally.
3) return loss effects of the concavo-convex amount butt junction of optical fiber is very big, and the return loss of pre-buried optical-fiber type connector can reach more than the 40dB at least, but for without its return loss of connector of grinding usually less than 30dB.
4) in the not pre-buried optical-fiber type joint, field optical fibers is become flexible in ceramic insertion core, when fixing tail end optical cable, can influence optical fiber laterally or length travel, simultaneously, in the plug process, phenomenons such as coupled optical power instability can appear.
5) even the part optical performance test is qualified during initial survey, but stability and poor repeatability, and can't through environmental test with repeat the plug test, it is lower just to dress up power.
The field connector of on-site grinding end face also is a kind of single tie point connector, and this is a kind of implementation of traditional field connector, needs gummed and face off at the construction field (site).It is long required set time that required bonding agent is glued together in the working-yard.The operation of face off generally has only 2 roads, and meets the connector of industry standard, and end face must be through 4～5 road different polishing technologies; While is owing to the reason of the environment of working-yard; The cleanliness of face off are low, and the poor stability of muller is difficult to guarantee the superior in quality of each face off.The general on-the-spot assembling of accomplishing a connector needs 30 minutes, has increased the set-up time.
The field connector of the pre-buried optical fiber of factory is a kind of multiconnection point connector, and contact pin body front end is at factory presets optical fiber, and end face is handled and check through precise finiss in factory.At the scene the optical fiber in the subscriber optical cable is carried out end face cutting, and through built-in aligning guide with preset optical fiber and carry out mechanical connection.Present such optical fiber field connector mainly contains following shortcoming:
1) complex structure, connector internal components precision is high, and cost is high.
2) some joints of optical fibre comes from elastomeric distortion to the holding force that presets the optical fiber and second optical fiber; When reusing; Because the fatigue properties of material cause holding force to weaken, and along with change of time, elastic body inhomogeneous variation can occur to the holding force of optical fiber.
3) some joints of optical fibre does not have watch window, can't observe the butt joint quality of optical fiber intuitively.
4) the surrounding layer holding force to second optical fiber is not enough, can't bear big axial and side direction pulling force.
5) installation of connector all needs special platform or anchor clamps, increases the assembly cost of installing on the one hand, and high to operating personnel's technical requirement on the other hand, the training time in early stage is long.
Summary of the invention
To the defective that exists in the prior art, the object of the present invention is to provide a kind of optical fiber field connector, second end and second optical fiber that preset optical fiber are engaged; Need not to use to connect the protection box, can exempt necessity, when this optical fiber field connector of assembling the bare fibre storage protection; Do not need speciality tool, need not to grind, and whether can on-the-spotly detect connection successful; After installing, can repeat to open and use.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of optical fiber field connector comprises main body 6, it is characterized in that:
The main body 6 outer detachable cover storehouses 8 that are set with, main body 6 is constructed to have the interface of SC type with detachable cover storehouse 8, or is constructed to have the interface of ST type, or is constructed to have the interface of FC type, or is constructed to have the interface of LC type,
Be provided with the mechanical splice of forming by pedestal 1, clamping plate 2 and the collar 3 in the main body 6,
Mechanical splice front end and fiber stub 7 butts, the rear end is connected with tail cover 9 through guide piece 4, snubber assembly 5,
Second optical fiber 12 places in the tail cover 9, and oversheath 10 adopts rotary threaded formula structure chucking tail cover 9 to prevent that second optical fiber 12 from coming off and slippage.
On the basis of technique scheme, clamping plate 2 are stacked on the pedestal 1, the collar 3 from after forward the pedestal 1 of being sleeved on constitute mechanical splice with clamping plate 2 outside surfaces.
On the basis of technique scheme; Pedestal 1 head is useful on the fiber stub hole 1d of receiving optical fiber lock pin 7; There is fiber gripper groove 1b in the stage casing of pedestal 1; Be useful on guiding between fiber stub hole 1d and fiber gripper groove 1b and preset the taper hole that optical fiber 11 inserts, the afterbody of pedestal 1 is provided with the first half slot 1a that is communicated with fiber gripper groove 1b;
Clamping plate 2 are enclosed within on the pedestal 1 through ring texture 2b, and the plane 2c that cooperates grip optical fibers with fiber gripper groove 1b is arranged on the clamping plate 2, and the first boss 2d is arranged on the clamping plate 2, make pedestal 1 and clamping plate 2 olos greater than the collar 3 endoporus 3b diameters; The afterbody of clamping plate 2 is provided with the second half slot 2a adaptive with the first half slot 1a, and first half slot 1a on the pedestal and the second half slot 2a on the clamping plate to dwindling gradually, form half-conical groove or half funnel trough along fiber axis;
On the basis of technique scheme; The side in said detachable cover storehouse 8 is provided with the first inlet 8c; End face is provided with the first view window 8a that is used to observe the fiber alignment situation; The first view window 8a each side is provided with second a view window 8b who is used to observe optical fiber field connector and interface mated condition
The side of said main body 6 is provided with the second inlet 6b that is communicated with the first inlet 8c, provides from the outside passage that is arranged on the mechanical splice in the connector that starts of connector, and end face is provided with the three view window 6a adaptive with the first view window 8a,
On the basis of technique scheme, when pedestal 1 inserts in the main body 6 from the rear end of main body 6, by the inner plane 6e location of main body 6, the inside groove 6g of main body 6 and the pedestal boss 1c matching and fixing pedestal 1 on the pedestal 1.
On the basis of technique scheme; Preset optical fiber 11 and pass fiber stub 7; Make and preset optical fiber 11 first end face 11a and overlap with the front end face 7a of fiber stub 7; It is suitable that the first end face 11a that presets optical fiber 11 was ground the connector of guaranteeing its quality and optical characteristics and produce in factory in factory, presets between the 3rd end face 12d of the second end face 11b and second optical fiber 12 of optical fiber 11 through the matching fluid tight connecting.
On the basis of technique scheme, the front portion of guide piece 4 is cylinder 4b, and cylinder 4b can insert among the first half slot 1a and the second half slot 2a on the clamping plate on the pedestal, is provided with the cylindrical hole 4a that is used to lead in the guide piece 4 vertically.
On the basis of technique scheme, snubber assembly 5 is sleeved on pedestal 1 and the afterbody of pressing plate 2 after the combination.
On the basis of technique scheme, tail overlaps 9 afterbodys and has the first cell body 9a, the second cell body 9b that is cross-shaped,
Tail overlaps 9 middle parts and is provided with second optical fiber insertion locating surface 9d and the little curved observation groove 9e of second fiber bow,
On the basis of technique scheme; Also comprise installation component 13, installation component 13 is T-shaped, and its front end is the horizontal part of T shape; The middle part formation rectangular recess that caves inward; The side of rectangular recess and bottom surface are the first location end face 13a that is used for the positioning optical waveguides field connector, and installation component 13 stage casings are provided with the buckle boss 13c that is oppositely arranged about two, and buckle boss 13c is used for blocking the 3rd boss 3a of the mechanical splice collar 3; Drive the collar 3 and move, the middle part of rectangular recess constitutes the second thin layer groove structure 13b to lower recess.
Optical fiber field connector of the present invention can make and preset second of optical fiber and terminal engage (presetting between the 3rd end face 12d of the second end face 11b and second optical fiber 12 of optical fiber 11 through the matching fluid tight connecting) with second optical fiber, need not to use to connect and protects box; Can exempt necessity, when this optical fiber field connector of assembling, not need speciality tool the bare fibre storage protection; Need not to grind; Whether and it is successful on-the-spotly to detect connection, after installing, can repeat to open and use.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is the axonometric drawing of optical fiber field connector according to an embodiment of the invention.
Fig. 2 is the exploded view of optical fiber field connector according to an embodiment of the invention.
Fig. 3 A, 3B and 3C are the cross section view of mechanical splice in the example fiber field connector of Fig. 1.Wherein Fig. 3 A is the synoptic diagram of optical fiber when not clamping.Synoptic diagram when Fig. 3 B is fiber gripper.Fig. 3 C is the axial cut-open view of vertical fiber.
Fig. 4 is the axonometric drawing in detachable cover storehouse of the example fiber field connector of Fig. 1.
Fig. 5 A and 5B are the axonometric drawing and the cut-open view of main body of the example fiber field connector of Fig. 1.
Fig. 6 is the fiber stub and the cut-open view that presets optical fiber of the example fiber field connector of Fig. 1.
Fig. 7 is the axonometric drawing of pedestal of the example fiber field connector of Fig. 1.
Fig. 8 is the axonometric drawing of clamping plate of the example fiber field connector of Fig. 1.
Fig. 9 is the axonometric drawing of the collar of the example fiber field connector of Fig. 1.
Figure 10 is the axonometric drawing of guide piece of the example fiber field connector of Fig. 1.
Figure 11 is the axonometric drawing that the tail of the example fiber field connector of Fig. 1 overlaps.
Figure 12 is the axonometric drawing of snubber assembly of the example fiber field connector of Fig. 1.
Figure 13 is the axonometric drawing of oversheath of the example fiber field connector of Fig. 1.
Figure 14 is the axonometric drawing of second optical fiber.
Figure 15 is the axonometric drawing of installation component of the example fiber field connector of Fig. 1.
The axonometric drawing of installation component position when Figure 16 does not clamp for second optical fiber in the example fiber field connector of Fig. 1 inserts.
Figure 17 be in the example fiber field connector of Fig. 1 second optical fiber insert clamp the time installation component position axonometric drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Though the present invention can be changed into various versions and alternative form, its details by way of example mode is shown in the drawings and will do detailed description hereinafter.Yet be understood that: the present invention does not attempt the present invention is limited to described specific embodiments.On the contrary, the objective of the invention is to contain interior all modifications form, equivalents and the alternative form of the scope of the invention that accompanying claims limits.
The present invention relates to a kind of optical fiber field connector.Specifically, this optical fiber field connector can directly carry out field terminating.According to the simple installation component of use described herein, can also shorten the built-up time in the field terminating process.For Fiber to the home (FTTH) network installation, exemplary connector described herein is installed simple, easy to use.
Axonometric drawing as shown in Figure 1 is in the tight connecting state for each parts of this optical fiber field connector, and the visible parts of the example fiber field connector among Fig. 1 has main body 6, fiber stub 7, detachable cover storehouse 8, oversheath 10 and second optical fiber 12.Be set with detachable cover storehouses 8 (main body 6 is surrounded by the outside detachable cover storehouse that covers 8) outside the main body 6, the interface of (plug-in square connector) type that main body 6 and detachable cover storehouse 8 are constructed to have SC.Yet in the given scope of the present invention; Also the optical fiber field connector with other type interface can be provided; Interface such as ST (the round head of the plug-in) interface of type, the interface of FC (round belt threaded connector) type or LC (similar with the SC joint geometry, littler) type than SC joint.According to exemplary embodiment of the present invention, detachable cover storehouse 8 and main body 6 can be formed or mould forms by polymkeric substance, or use metal and other suitable rigid material to process.
Exploded view shown in Figure 2 has at length provided each assembly of this optical fiber field connector; Except that above-mentioned visible parts shown in Figure 1, also comprise: pedestal 1, clamping plate 2, the collar 3, guide piece 4, snubber assembly 5, tail cover 9 and preset optical fiber 11 with lower component.As shown in Figure 2, main body 6 is a hollow structure, and main body 6 front ends are provided with fiber stub 7; Fiber stub 7 is played the better protect effect, be provided with in the fiber stub 7 and preset optical fiber 11, main body 6 rear ends are provided with tail cover 9; Be provided with the mechanical splice of forming by pedestal 1, clamping plate 2 and the collar 3 in the main body 6; Mechanical splice front end and fiber stub 7 butts, the rear end is connected with tail cover 9 through guide piece 4, snubber assembly 5, and second optical fiber 12 places in the tail cover 9; Oversheath 10 adopts rotary threaded formula structure chucking tail cover 9 (promptly tightening the tail end of this optical fiber field connector), prevents that second optical fiber 12 from coming off and slippage.Mechanical splice adopts transparent material, can see the termination situation of optical fiber through the watch window of detachable cover storehouse and main body.This pedestal makes fixed fiber lock pin and fixed preset optical fiber be formed in one, and simplifies the structure, and presets the probability of fibercuts when having reduced the fixed fiber lock pin.The concrete structure of each parts, annexation see for details following.
The concrete structure of the said mechanical splice of being made up of pedestal 1, clamping plate 2 and the collar 3 is following: clamping plate 2 are stacked on the pedestal 1, the collar 3 from after being sleeved on pedestal 1 and clamping plate 2 outside surfaces forward.
Fig. 7 is the axonometric drawing of pedestal.Pedestal 1 head is useful on the fiber stub hole 1d of receiving optical fiber lock pin 7.There is fiber gripper groove 1b (for example V-type groove or other shape groove) in the stage casing of pedestal 1; Be used for optimizing the clamping force that is applied on the optical fiber; Preferably; Pedestal 1 is the plastic material single injection-molded, make this fiber gripper groove 1b be used for the fiber stub hole 1d of receiving optical fiber lock pin 7 fabulous concentricity arranged.In this exemplary embodiment, be useful on guiding between fiber stub hole 1d and fiber gripper groove 1b and preset the taper hole that optical fiber 11 inserts.Fiber gripper groove 1b is the V-type groove in this exemplary embodiment, in the V-type groove of optical fiber distribution frame with outside plant position, presets the matching fluid with conventional refractive index, to improve the optical property of optical fiber distribution frame with outside plant.The afterbody of pedestal 1 is provided with the first half slot 1a that is communicated with fiber gripper groove 1b.Pedestal boss 1c is used for cooperating with main body 6 and realizes fixed pedestal 1.
Fig. 8 is the axonometric drawing of clamping plate.Clamping plate 2 are enclosed within on the pedestal 1 through ring texture 2b, and the plane 2c that cooperates grip optical fibers with fiber gripper groove 1b is arranged on the clamping plate 2.In the exemplary embodiment, pedestal 1 all adopts semi-circular structure with clamping plate 2, and the first boss 2d is arranged on the clamping plate 2, makes pedestal 1 and clamping plate 2 olos greater than the collar 3 endoporus 3b diameters.The afterbody of clamping plate 2 is provided with the second half slot 2a adaptive with the first half slot 1a, and first half slot 1a on the pedestal and the second half slot 2a on the clamping plate to dwindling gradually, form half-conical groove or half funnel trough along fiber axis, can play the effect of guide optic fibre equally.Described half-conical groove or half funnel trough all with fiber gripper groove 1b arc transition.There is ring texture to be used to be enclosed within pedestal on the clamping plate, makes the relative pedestal of clamping plate have only the relative motion of a direction.Snubber assembly behind clamping plate and the pedestal can limit the relative motion of a direction.
Fig. 9 is the axonometric drawing of the collar.Pedestal 1 after the combination passes with the endoporus 3b of clamping plate 2 from the collar 3.For the collar 3 can be moved smoothly, have before the endoporus 3b of the collar 3 and tiltedly carve face 3c.The collar 3 front limit realize (referring to Fig. 5 B) through the upper surface 6f applying of the second boss 3d end face and main body 6; The spacing rear end face 9h that passes through the second boss 3d end face and tail cover 9 in back fits and realizes (referring to Figure 11), and the 3rd boss 3a on the collar 3 moves (referring to Fig. 5 A) in the second inlet 6b of main body 6.
Fig. 3 A and Fig. 3 B are respectively the mechanical splice cut-open view of optical fiber when not clamping with fiber gripper, and Fig. 3 C is the axial mechanical splice cut-open view of vertical fiber.Shown in Fig. 3 A; When optical fiber does not clamp; (see Fig. 2,9, collar endoporus is the inner ring-type through hole of finger sleeve ring 3 to the endoporus 3b of the collar 3, and the olo of clamping plate and pedestal is meant maximum outside diameter greater than the olo of pedestal 1 and clamping plate 2; This moment, the collar 3 was positioned at the afterbody of pedestal 1 and clamping plate 2), the second optical fiber ablation section 12c of second optical fiber 12 can penetrate the fiber gripper groove 1b (referring to Fig. 7) on the pedestal 1 smoothly.When moving forward the collar 3 (head to pedestal 1 and clamping plate 2 moves the collar 3); Shown in Fig. 3 B; The endoporus of the collar 3 is less than the olo of pedestal 1 and clamping plate 2 at this moment; By the deformation force that interference fit produces, make pedestal 1 and clamping plate 2 clamp the second optical fiber ablation section 12c of second optical fiber 12, xsect shown in Fig. 3 C.Shown in Fig. 3 A, preset between the 3rd end face 12d (referring to Figure 14) of the second end face 11b and second optical fiber 12 of optical fiber 11 through the matching fluid tight connecting.Mechanical splice can repeat to clamp and unclamp optical fiber through the motion of the collar.Make this optical fiber field connector to reuse.The stop means that collar motion is arranged in this mechanical splice can make clear and definite fiber gripper of user and the state that unclamps.
Detachable cover storehouse shown in Fig. 4 (convenient for narration, as to be designated hereinafter simply as the cover storehouse) has provided with lower component: the first view window 8a, the second view window 8b and the first inlet 8c.The side in said cover storehouse 8 is provided with the first inlet 8c, and end face is provided with the first view window 8a, and the first view window 8a each side is provided with one second view window 8b.Main body shown in Fig. 5 A has provided with lower component: the 3rd view window 6a, mounting hole 6c, installation end face 6d and the second inlet 6b.The side of said main body 6 is provided with the second inlet 6b that is communicated with the first inlet 8c, and end face is provided with the three view window 6a adaptive with the first view window 8a, and mounting hole 6c is used for being connected with tail cover 9 with installation end face 6d.The first view window 8a on the cover storehouse 8 is used to observe the fiber alignment situation; Cooperate the 3rd view window 6a on the main body 6 to use together: fiber stub 7 is inserted ruddiness tip of the brushstyle of a writing or painting mouth; Open a ruddiness switch and make the ruddiness pen luminous, if the first view window 8a does not have ruddiness to appear, it is qualified then to assemble; If the transparent window visible red of the first view window 8a is revealed, then need re-assembly optical fiber field connector.The second view window 8b on the cover storehouse 8 is used to observe optical fiber field connector and interface mated condition: when SC type optical fiber field connector inserts SC interface (for example SC coupling mechanism, SC adapter, SC socket); Can't see fully like the second view window 8b, the expression butt joint is good.The first inlet 8c on the cover storehouse 8 cooperates the second inlet 6b on the main body 6, provides from the outside passage that is arranged on the mechanical splice in the connector that starts of connector.Main body 6 fixes tail cover 9 through mounting hole 6c and installation end face 6d, and is shown in figure 11 in the exemplary embodiment, and fastening component 9g and the mounting hole 6c on the main body 6 on the tail cover 9 fasten, fastening end face 9f on the tail cover 9 and the applying of the installation end face 6d on the main body 6.
Main body shown in Fig. 5 B has provided like lower component: inner plane 6e, upper surface 6f and inside groove 6g.Pedestal 1 inserts in the main body 6 from the rear end of main body 6, but the inner plane 6e positioning pedestal 1 of main body 6, but the inside groove 6g of main body 6 and the pedestal boss 1c on the pedestal 1 cooperate fixed pedestal 1 that it can not be rotated.Upper surface 6f is used for the collar 3 front limit.
Fig. 6 is fiber stub and the cut-open view that presets optical fiber.Fiber stub 7 can be formed by pottery, glass, plastics or metal material, be used for supporting be inserted and secured on wherein preset optical fiber 11.Preferably, fiber stub 7 is a ceramic insertion core.To preset optical fiber 11 and pass fiber stub 7, and make and preset optical fiber 11 first end face 11a and overlap with the front end face 7a of fiber stub 7.Preset single mode or multimode optical fiber that optical fiber 11 can be standard, preset optical fiber 11 and in fiber stub 7, can adopt epoxy resin or other cementing agent to fix.This first end face (promptly this lock pin that presets optical fiber 11 is terminal) 11a that presets optical fiber 11 was ground in factory, can guarantee that the connector of its quality and optical characteristics and produce in factory is suitable.Fiber stub 7 epoxy resin capable of using or other cementing agent are fixed in the fiber gripper groove 1b on the pedestal 1, and in factory, install in advance.
Figure 14 is the axonometric drawing of second optical fiber, comprises with lower component: surrounding layer end face 12a, the second optical fiber ablation section 12c, second fiber end face (the 3rd end face of second optical fiber) 12d, the second optical fiber jacket 12e.
Figure 13 is the axonometric drawing of oversheath.Contraction tail end on the oversheath 10 can withstand the tail end face of tail cover 9, and when oversheath 10 again during precession, it is suitable to guarantee that tail cover 9 clamps the acting force of second optical fiber 12.Oversheath 10 is provided with the friction enhancing structure 10a that increases friction force when reversing simultaneously.In the exemplary embodiment, it is groove that friction strengthens structure 10a, also can be naturally anyly can strengthen other structures that hand reverses friction force.But the external thread 9i fluid-tight engagement on internal thread 10b in the oversheath 10 and the tail cover 9.
Figure 11 is the axonometric drawing of tail cover.Main body 6 fixes tail cover 9 through mounting hole 6c and installation end face 6d.Tail overlaps 9 afterbodys and has the first cell body 9a, the second cell body 9b that is cross-shaped, makes the afterbody of tail cover 9 be divided into four.Under the forces of oversheath 10, the afterbody of tail cover 9 is more yielding, makes that the acting force that clamps second optical fiber 12 is stronger.Tail overlaps 9 middle parts and is provided with second optical fiber insertion locating surface 9d and the little curved observation groove 9e of second fiber bow; After second optical fiber 12 is peeled off surrounding layer on request and is inserted optical fiber field connector; When surrounding layer end face 12a is adjacent to second optical fiber insertion locating surface 9d; Second optical fiber 12 can arch upward in the little curved observation groove 9e of second fiber bow slightly; Represent that the second fiber end face 12d of second optical fiber 12 has been adjacent to the second end face 11b that presets optical fiber 11 this moment, and be available mechanical splice grip optical fibers this moment, and the second optical fiber ablation section 12c should penetrate fiber gripper groove 1b.
In exemplary embodiment shown in Figure 11, fastening component 9g and the mounting hole 6c on the main body 6 on the tail cover 9 fasten, and fastening end face 9f that tail puts and the installation end face 6d on the main body 6 fit.External thread 9i on the tail cover 9 and the internal thread 10b on the oversheath 10 are threaded, and when oversheath 10 rotations, can produce axial force, and this axial force can tightly be embraced the second optical fiber jacket 12e through the afterbody tooth-shape structure 9c of the inwall compressing tail cover 9 of oversheath 10.Clamp second optical fiber 12 owing to adopt helicitic texture to produce axial force, make clamping force very strong, prevent the purpose become flexible owing to the self-locking of helicitic texture reaches simultaneously.Tail cover 9 is used for fixing with oversheath 10 and protects second optical fiber 12; Make the power axial and side direction that receives on second optical fiber 12 can be delivered on the optical fiber field connector; Produce the gap and be unlikely to make between the 3rd end face 12d of the second end face 11b that presets optical fiber 11 and second optical fiber 12, influence the light characteristic of termination.Tail cover tail end is divided into several, along with oversheath puts screw thread rotation and moves at tail, and under the compressing on the inboard inclined-plane of oversheath, locking second fiber outer layer that can brute force.This tail cover can adopt plane, dentation, salient point or pattern structure with the lock portion of second optical fiber.Tail cover and oversheath are configured can the grip optical fibers skin, and optical fiber cable can be that diameter is the circular single fiber cable of 3.0mm, tight tube fiber that diameter is 0.9mm and the butterfly leading in cable of 2.0 * 3.1mm etc.
Optical fiber field connector according to the invention also is furnished with installation component 13, and is shown in figure 15.In this exemplary embodiment; This installation component 13 is a T type plastic parts; This installation component 13 is provided with the first location end face 13a that is used for the positioning optical waveguides field connector, the installation component 13 middle parts formation rectangular recess that caves inward, and the first location end face 13a i.e. the side and the bottom surface of this rectangular recess.These installation component 13 stage casings are provided with the buckle boss 13c that is oppositely arranged about two; Buckle boss 13c can block the collar 3 in the mechanical splice the 3rd boss 3a (buckle boss 13c from second the inlet 6b, first the inlet 8c probe into; Block the 3rd boss 3a); Drive the collar 3 and move, shown in figure 16, insert not locking state for optical fiber this moment; Shown in figure 17, be the optical fiber locking state this moment.For making that buckle boss 13c can be smoothly through the first inlet 8c, this installation component 13 is provided with the second thin layer groove structure 13b, and the middle part of rectangular recess constitutes the second thin layer groove structure 13b to lower recess; After installation; Withstand the installation component bottom, to pressing down, the second thin layer groove structure 13b understands flexural deformation with the T connector two ends; The inlet of the first location end face 13a opens, and double polarizing keys 13c can take out or insert through the first inlet 8c.Installation component can be out of shape under external force, makes this assembly to insert through the inlet of cover storehouse and main body side.This assembly can act on the collar of mechanical splice, and the collar is moved, and clamps and unclamps optical fiber.After second optical fiber distribution frame with outside plant was accomplished, this assembly can take out from optical fiber field connector.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under enlightenment of the present invention, making, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (8)
1. an optical fiber field connector comprises main body (6), it is characterized in that:
The outer detachable cover storehouse (8) that is set with of main body (6); Main body (6) and detachable cover storehouse (8) are constructed to have the interface of SC type, or are constructed to have the interface of ST type, or are constructed to have the interface of FC type; Or the interface that is constructed to have the LC type
Main body (6) is a hollow structure, and its front end is provided with fiber stub (7), is provided with in the fiber stub (7) to preset optical fiber (11), and its rear end is provided with tail cover (9),
Be provided with the mechanical splice of forming by pedestal (1), clamping plate (2) and the collar (3) in the main body (6),
Mechanical splice front end and fiber stub (7) butt, the rear end is connected with tail cover (9) through guide piece (4), snubber assembly (5),
Second optical fiber (12) places in the tail cover (9), and oversheath (10) adopts rotary threaded formula structure chucking tail cover (9) to come off and slippage to prevent second optical fiber (12);
Clamping plate (2) are stacked on the pedestal (1), the collar (3) from after forward be sleeved on pedestal (1) and clamping plate (2) outside surface constitutes mechanical splice;
Pedestal (1) head is useful on the fiber stub hole (1d) of receiving optical fiber lock pin (7); There is fiber gripper groove (1b) in the stage casing of pedestal (1); Be useful on guiding between fiber stub hole (1d) and fiber gripper groove (1b) and preset the taper hole that optical fiber (11) inserts, the afterbody of pedestal (1) is provided with first half slot (1a) that is communicated with fiber gripper groove (1b);
Clamping plate (2) are enclosed within on the pedestal (1) through ring texture (2b); The plane (2c) that cooperates grip optical fibers with fiber gripper groove (1b) is arranged on the clamping plate (2); First boss (2d) is arranged on the clamping plate (2), make pedestal (1) and clamping plate (2) olo greater than the collar (3) endoporus (3b) diameter; The afterbody of clamping plate (2) is provided with second half slot (2a) adaptive with first half slot (1a), and first half slot (1a) on the pedestal and second half slot (2a) on the clamping plate to dwindling gradually, form half-conical groove or half funnel trough along fiber axis;
Pedestal after the combination (1) and clamping plate (2) pass from the endoporus (3b) of the collar (3); The endoporus (3b) of the collar (3) is preceding to have the face of tiltedly carving (3c); The collar (3) front limit is fitted through the upper surface (6f) of second boss (3d) end face and main body (6) and is realized; The spacing rear end face (9h) that passes through second boss (3d) end face and tail cover (9) in back is fitted and is realized, the 3rd boss (3a) on the collar (3) moves in second inlet (6b) of main body (6).
2. optical fiber field connector as claimed in claim 1; It is characterized in that: the side in said detachable cover storehouse (8) is provided with first inlet (8c); End face is provided with first view window (8a) that is used to observe the fiber alignment situation; First view window (8a) each side be provided with second view window (8b) that is used to observe optical fiber field connector and interface mated condition
The side of said main body (6) is provided with second inlet (6b) that is communicated with first inlet (8c), provides from the outside passage that is arranged on the mechanical splice in the connector that starts of connector, and end face is provided with three view window (6a) adaptive with first view window (8a),
Main body (6) tail end is provided with and is used for the mounting hole (6c) and the installation end face (6d) that are connected with tail cover 9; Fastening component (9g) on the tail cover (9) and the mounting hole (6c) on the main body (6) fasten, and fastening end face (9f) on the tail cover (9) and the installation end face (6d) on the main body (6) are fitted.
3. optical fiber field connector as claimed in claim 1; It is characterized in that: pedestal (1) inserts main body (6) when interior from the rear end of main body (6); By inner plane (6e) location of main body (6), the inside groove (6g) of main body (6) and pedestal boss (1c) the matching and fixing pedestal (1) on the pedestal (1).
4. optical fiber field connector as claimed in claim 1; It is characterized in that: preset optical fiber (11) and pass fiber stub (7); Make and preset optical fiber (11) first end faces (11a) and overlap with the front end face (7a) of fiber stub (7); It is suitable that first end face (11a) that presets optical fiber (11) was ground the connector of guaranteeing its quality and optical characteristics and produce in factory in factory, presets between the 3rd end face (12d) of second end face (11b) and second optical fiber (12) of optical fiber (11) through the matching fluid tight connecting.
5. optical fiber field connector as claimed in claim 1; It is characterized in that: the front portion of guide piece (4) is cylinder (4b); Cylinder (4b) can insert in first half slot (1a) and second half slot (2a) on the clamping plate on the pedestal, is provided with the cylindrical hole (4a) that is used to lead in the guide piece (4) vertically.
6. optical fiber field connector as claimed in claim 1 is characterized in that: snubber assembly (5) is sleeved on pedestal (1) and the afterbody of pressing plate (2) after the combination.
7. optical fiber field connector as claimed in claim 1 is characterized in that: tail cover (9) afterbody has first cell body (9a), second cell body (9b) that is cross-shaped,
Tail cover (9) middle part is provided with second optical fiber and inserts locating surface (9d) and the little curved observation groove of second fiber bow (9e),
Tail cover (9) is provided with external thread (9i), and internal thread (10b) in the oversheath (10) and the external thread (9i) on the tail cover (9) are threaded.
8. optical fiber field connector as claimed in claim 1; It is characterized in that: also comprise installation component (13), installation component (13) is T-shaped, and its front end is the horizontal part of T shape; The middle part formation rectangular recess that caves inward; The side of rectangular recess and bottom surface are the first location end face (13a) that is used for the positioning optical waveguides field connector, and installation component (13) stage casing is provided with the buckle boss (13c) that is oppositely arranged about two, and buckle boss (13c) is used for blocking the 3rd boss (3a) of the mechanical splice collar (3); Drive the collar (3) and move, the middle part of rectangular recess constitutes the second thin layer groove structure (13b) to lower recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101492490A CN101806940B (en) | 2010-04-19 | 2010-04-19 | Optical fiber field connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101492490A CN101806940B (en) | 2010-04-19 | 2010-04-19 | Optical fiber field connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101806940A CN101806940A (en) | 2010-08-18 |
| CN101806940B true CN101806940B (en) | 2012-02-29 |
Family
ID=42608808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101492490A Expired - Fee Related CN101806940B (en) | 2010-04-19 | 2010-04-19 | Optical fiber field connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101806940B (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162889A (en) * | 2011-05-10 | 2011-08-24 | 上海上诠电信科技有限公司 | Butterfly-like prefabricated tail fiber |
| CN102375184B (en) * | 2011-11-10 | 2014-02-19 | 潮州三环（集团）股份有限公司 | Quick optical fiber terminating assembly |
| CN102854577B (en) * | 2012-04-16 | 2015-04-08 | 华为技术有限公司 | Optical module and lock device of optical fiber connector |
| CN102681093B (en) * | 2012-06-07 | 2014-06-25 | 苏州新海宜通信科技股份有限公司 | Leading-in optical cable hot melting protector |
| WO2014043858A1 (en) * | 2012-09-19 | 2014-03-27 | 一诺仪器（威海）有限公司 | Optical fiber connecting assembly and optical fiber connector comprising the same |
| CN103091795B (en) * | 2013-01-28 | 2015-04-22 | 深圳市特发信息光网科技股份有限公司 | Machinery type field-assembled optical fiber connector |
| CN104101964B (en) * | 2013-12-01 | 2015-01-28 | 杨泽清 | Optical fiber locking structure in optical communication device connection |
| CN104007516A (en) * | 2014-04-30 | 2014-08-27 | 奉化市宇达高科光电器件有限公司 | Saucer-shaped optical fiber quick connector |
| CN104330854B (en) * | 2014-11-13 | 2016-05-18 | 国网河南镇平县供电公司 | A kind of on-the-spot optical cable docking facilities and docking calculation |
| CN105093454B (en) * | 2015-09-09 | 2018-06-12 | 江苏亨通光网科技有限公司 | One kind is prefabricated into end butterfly leading in cable and its preparation and wiring method |
| CN107942440B (en) * | 2018-01-02 | 2024-01-30 | 任丘市志强塑料制品有限公司 | Miniature optical fiber heat shrinkage tube and production process thereof |
| CN110297294B (en) * | 2018-03-23 | 2022-03-22 | 中兴通讯股份有限公司 | Prefabricated optical cable assembly and prefabricated optical cable connector |
| CN108802904A (en) * | 2018-08-15 | 2018-11-13 | 杭州雷特通信技术有限公司 | A kind of high performance on-site fixed length exempts from molten connection jumping fiber system and production method |
| CN110208913B (en) * | 2018-12-05 | 2021-03-23 | 中航光电科技股份有限公司 | Optical fiber connector for site operation |
| CN109520709B (en) * | 2018-12-18 | 2020-12-04 | 国网浙江省电力有限公司宁波供电公司 | Optical circuit safety measure isolation detection tool |
| CN112083531B (en) * | 2019-06-12 | 2021-10-19 | 烽火通信科技股份有限公司 | Optical fiber movable connector |
| CN110542952B (en) * | 2019-07-26 | 2021-05-18 | 华为技术有限公司 | Optical fiber connector and optical fiber connector |
| CN111207807B (en) * | 2020-01-09 | 2021-10-22 | 江苏新晖测控科技有限公司 | Radio frequency admittance level meter convenient to fixed use |
| CN111913255B (en) * | 2020-07-10 | 2024-06-18 | 华为技术有限公司 | Optical fiber core-inserting module, optical fiber plug, optical fiber adapter and optical fiber connector |
| EP3974883A4 (en) * | 2020-08-05 | 2022-03-30 | Huawei Technologies Co., Ltd. | Connector |
| US11604320B2 (en) * | 2020-09-30 | 2023-03-14 | Corning Research & Development Corporation | Connector assemblies for telecommunication enclosures |
| CN112882160A (en) * | 2021-01-19 | 2021-06-01 | 苏州长光华芯光电技术股份有限公司 | Reusable fixing structure |
| CN114815081B (en) * | 2022-05-27 | 2023-05-02 | 深圳市达富光通信有限公司 | Optical fiber connector and optical fiber connector assembly |
| CN115047569B (en) * | 2022-07-13 | 2023-09-26 | 武汉光迅科技股份有限公司 | Optical fiber connector and assembly method thereof |
| CN115128742B (en) * | 2022-07-20 | 2024-05-31 | 湖南禾生顺科技有限公司 | Optical fiber communication connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676224Y (en) * | 2003-12-26 | 2005-02-02 | 深圳日海通讯技术有限公司 | Union joint of optical fiber movable connector |
| CN201035189Y (en) * | 2007-04-16 | 2008-03-12 | 上海恰时科技发展有限公司 | Neutral connector of mobile optical cable |
| CN201075137Y (en) * | 2007-03-12 | 2008-06-18 | 深圳太辰光通信有限公司 | Rapid connecting optical fiber plug and optical fiber connector |
| CN201298091Y (en) * | 2008-10-29 | 2009-08-26 | 珠海保税区光联通讯技术有限公司 | Plug-pull type optical passive device |
| CN201311500Y (en) * | 2008-11-17 | 2009-09-16 | 浙江同星光电科技有限公司 | Optical-fiber mechanical connector and substrate |
-
2010
- 2010-04-19 CN CN2010101492490A patent/CN101806940B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676224Y (en) * | 2003-12-26 | 2005-02-02 | 深圳日海通讯技术有限公司 | Union joint of optical fiber movable connector |
| CN201075137Y (en) * | 2007-03-12 | 2008-06-18 | 深圳太辰光通信有限公司 | Rapid connecting optical fiber plug and optical fiber connector |
| CN201035189Y (en) * | 2007-04-16 | 2008-03-12 | 上海恰时科技发展有限公司 | Neutral connector of mobile optical cable |
| CN201298091Y (en) * | 2008-10-29 | 2009-08-26 | 珠海保税区光联通讯技术有限公司 | Plug-pull type optical passive device |
| CN201311500Y (en) * | 2008-11-17 | 2009-09-16 | 浙江同星光电科技有限公司 | Optical-fiber mechanical connector and substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101806940A (en) | 2010-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101806940B (en) | Optical fiber field connector | |
| CN101617255B (en) | Remote grip optical fiber connector | |
| CN100485431C (en) | Field installable optical fiber connector | |
| CA2202360C (en) | A field installable optical fiber connector and an associated method of fabrication | |
| CN105917259B (en) | A kind of connector and fiber connector | |
| CN104412143B (en) | Fiber optic connector ferrule with curved outer alignment surface | |
| CN1115527A (en) | Connector for optical fiber | |
| CN102576127A (en) | Fiber optic connectors and structures for large core optical fibers and methods for making the same | |
| CN108139547A (en) | Optical waveguide locating feature in more waveguide connectors | |
| US20130071070A1 (en) | Field installable optical-fiber connector | |
| CA2921850A1 (en) | Fiber optic connector, fiber optic connector and cable assembly, and methods for manufacturing | |
| EP0771431A1 (en) | Lens connector for optical through-connection of light guides | |
| US20130287342A1 (en) | Lead-in formations in optical fiber segments and methods of forming lead-in formations | |
| WO2019213082A1 (en) | Optical wave bridge adapter | |
| KR101810930B1 (en) | Connector of optical fiber for using in field | |
| CN202563127U (en) | Sc optical fiber quick connector | |
| US11953735B2 (en) | Multi-fiber assembly for a ferrule-less fiber optic connector | |
| US6810196B2 (en) | Variable attenuator for optical fiber applications | |
| CN102576128A (en) | Fiber optic connectors and structures for large core optical fibers and methods for making the same | |
| CN102385121A (en) | Quick optical fiber forming assembly with high performance | |
| CN201226037Y (en) | Cold joint apparatus for optical fiber | |
| US9358657B1 (en) | Recess forming tool for preparing fiber optic ferrule endfaces | |
| CN202281848U (en) | High performance optical fiber quick terminal forming component | |
| CN215769116U (en) | Optical fiber array with mode conversion | |
| CN202735544U (en) | High performance fiber rapid terminating assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 |