CN201152902Y - Optical fiber connector - Google Patents
Optical fiber connector Download PDFInfo
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- CN201152902Y CN201152902Y CNU2007201949635U CN200720194963U CN201152902Y CN 201152902 Y CN201152902 Y CN 201152902Y CN U2007201949635 U CNU2007201949635 U CN U2007201949635U CN 200720194963 U CN200720194963 U CN 200720194963U CN 201152902 Y CN201152902 Y CN 201152902Y
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Abstract
The utility model provides an optical fiber connector which can improve the performance of containing the optical fiber in a case body through compaction and avoiding the problems of the bending loss increase or damage of the optical fiber. An optical fiber connector (1) contains and maintains a melt junction (13) which is formed by melting a short optical fiber (5) and an optical fiber core line (3) arranged on an optical fiber connector ferrule (7) in advance, and one end of a protecting sleeve (15) arranged on the exterior of the melt junction (13) is combined with the optical fiber connector ferrule (7). As a result, the melt junction (13) covers the protecting sleeve (15) of the melt junction (13) in the way that the melt junction is positioned in the central position. Because the length size of the optical fiber connector ferrule (7) is set with the terminal as the reference position, the protecting sleeve (15) is shortened and the compaction of the optical fiber connector (1) is achieved.
Description
Technical field
The utility model relates to a kind of joints of optical fibre, and it accommodates maintenance fusion connecting portion, and this fusion connecting portion is that short fiber and the optical fibre core that the fusion connection is installed on the optical connector ferrule in advance forms.
Background technology
Under situations such as local optical fiber distributing, need the on-the-spot joints of optical fibre of on optical fiber cable, installing.
Current, as a kind of mode that on the fiber cores line end, connects the structure of optical connector ferrule at the scene, shown in patent documentation 1 (Figure 26), known a kind of joints of optical fibre that are connected with optical connector ferrule by the fusion connection.
The joints of optical fibre 110 shown in the above-mentioned patent documentation 1; connect by fusion the short fiber 13 and the on-the-spot optical fibre core 100 that are installed in advance on the optical connector ferrule 102 be connected, this fusion connecting portion 105 on every side by protection sleeve 101 coatings and strengthen.
In addition, connector shell 121 constitutes, and accommodates the part from optical connector ferrule 102 to the optical fibre core 100 that is positioned at protection sleeve 101 rears in inside.
In addition, connector shell 121 has: jack frame 122, itself so that the state that the front end of optical connector ferrule 102 protrudes it is accommodated; Protective cover 123, the end of its up-winding fiber heart yearn 100; And the stop collar 124 of tubular, one end and jack frame 122 are chimeric integrated, and the other end and protective cover 123 are chimeric integrated simultaneously.Optical connector ferrule 102 in the jack frame 122 is compressed the distolateral forward pretension of volute spring 125.This compression helical spring 125 when connector connects, allows that optical connector ferrule 102 retreats, and the contact pressure between the optical connector ferrule of this optical connector ferrule 102 and the opposite side joints of optical fibre is remained in the specialized range.
Being connected between the fiber cores line end of the above-mentioned joints of optical fibre 110 and the optical connector ferrule; as omitted shown in Figure 27 (a) of the form of connector shell, the end of on-the-spot optical fibre core 100 is become in advance insert the state of the protection sleeve 101 that is used to protect fusing department.Then, make the end of the short fiber 103 that is installed in advance on the optical connector ferrule 102 and the end of optical fibre core 100 become the state of on specified length, peelling off clad respectively, the end is close to mutually and is carried out fusion, above-mentioned optical connector ferrule 102 remains on the jack frame of SC connector etc.Then, shown in Figure 27 (b), the protection sleeve 101 that is installed on the optical fibre core 100 is moved on the fusion connecting portion 105, become the strengthened condition that makes protection sleeve 101 coating fusion connecting portions 101.Thus, the joints of optical fibre 110 can be protected fusion connecting portion 105 reliably.
Patent documentation 1: the spy opens the 2002-82257 communique
Summary of the invention
But; in above-mentioned connection; the end of each optical fiber that is melted; transfer the core location owing to use anchor clamps; so need will peel off the length setting of part 100a, the 103a of clad is about 10mm, in addition, for the protected reliably sleeve 101 of the covered section that makes each optical fiber coats; need to set the length of protection sleeve 101, so that the coating portion of each optical fiber and protection sleeve 101 overlapping parts are about 10mm.
That is, the length of protection sleeve 101 becomes more than or equal to 40mm.Its result; it is big especially that the joints of optical fibre 110 become; become the degree of the length 40mm that comprises L of coating portion that short fiber 103 exposes and protection sleeve 101, be difficult to guarantee sufficient receiving space, sometimes be difficult to be assembled in small-sized casing etc. more than or equal to L+40mm.
In addition; in order to stop the joints of optical fibre 110 to become big; consider the length dimension of protection sleeve 101 is shortened; but in the case; might be because operator's proficiency be relatively poor or faulty operation etc. axially misplaces the fixed position of protection sleeve 101; expose exposed optical fiber, thereby the lap of the coating portion of each optical fibre core can't be shortened a lot.
Thus, the effect that shortens protection sleeve 101 grades is very little, has the problem that is difficult to accommodate to casing etc.
And then; under the situation of the above-mentioned joints of optical fibre 110; when connector connects; under by the situation that optical connector ferrule 102 retreats with the optical connector ferrule butt of opposite side; can be to the 103 effect compressive loads of the short fiber between optical connector ferrule 102 and protection sleeve 101; this load meeting makes short fiber 103 produce bending, might increase bending loss.
The purpose of this utility model is, a kind of joints of optical fibre are provided, and it can improve the accommodating property of accommodating to small box body etc., and can avoid the bending loss of optical fiber to increase or problem such as breakage.
To achieve these goals, the technical scheme 1 described joints of optical fibre that the utility model is related, it is accommodated, and to keep fusion connecting portion, this fusion connecting portion be to carry out fusion and be formed by connecting being installed in short fiber on the optical connector ferrule and optical fibre core, it is characterized in that
One end of the protection sleeve that above-mentioned fusion connecting portion is strengthened combines with above-mentioned optical connector ferrule.
The related technical scheme 2 described joints of optical fibre of the utility model are characterised in that; in the joints of optical fibre that technical scheme 1 is recorded and narrated; above-mentioned protection sleeve has heat-shrinkable tube, inserts plug and bonding pipe in this heat-shrinkable tube, and this protection sleeve combines with above-mentioned optical connector ferrule.
The related technical scheme 3 described joints of optical fibre of the utility model are characterised in that; in the technical scheme 1 or the 2 described joints of optical fibre; above-mentioned optical fibre core is removed the state of specified length with the skin of end of cable; be installed in the above-mentioned joints of optical fibre; another that above-mentioned protection sleeve is not combining with above-mentioned optical connector lasso is distolateral, covers the periphery of above-mentioned optical fibre core.
The related technical scheme 4 described joints of optical fibre of the utility model are characterised in that in the technical scheme 1 or the 2 described joints of optical fibre, to have jack frame, and it protrudes the leading section of above-mentioned optical connector ferrule, accommodates this lasso simultaneously.
The related technical scheme 5 described joints of optical fibre of the utility model are characterised in that; in the technical scheme 4 described joints of optical fibre; has the rear portion housing; it is configured in above-mentioned protection sleeve in the inner space and with above-mentioned jack frame and is connected; on this rear portion housing, have the card claw stop, this card claw stop with penetrate the stop hole that is arranged on the above-mentioned jack frame and engage.
The related technical scheme 6 described joints of optical fibre of the utility model are characterised in that in the technical scheme 5 described joints of optical fibre, be configured in the stretching resistance fiber on the above-mentioned optical cable, riveted and fixed is on the rearward end of above-mentioned rear portion housing.
The technical scheme 7 described joints of optical fibre that the utility model is related; it is accommodated and keeps the fusion connecting portion; one end of the protection sleeve that above-mentioned fusion connecting portion is strengthened combines with optical connector ferrule; this fusion connecting portion is that short fiber and the optical fibre core fusion that will be installed on the above-mentioned optical connector ferrule are formed by connecting; it is characterized in that
The binding parts that above-mentioned protection sleeve has heat-shrinkable tube, inserts the plug in this heat-shrinkable tube and bond pipe and be fastened on an end of above-mentioned heat-shrinkable tube, this links parts and combines with above-mentioned optical connector ferrule.
The technical scheme 8 described joints of optical fibre that the utility model relates to are characterised in that, in the technical scheme 7 described joints of optical fibre, fix above-mentioned plug on above-mentioned binding parts.
The related technical scheme 9 described joints of optical fibre of the utility model are characterised in that; in the technical scheme 7 described joints of optical fibre; has jack frame; it protrudes the leading section of above-mentioned optical connector ferrule; accommodate this lasso simultaneously; form guiding groove on this jack frame, the positioning convex channeling conduct that this guiding groove protrudes the outer peripheral face at above-mentioned protection sleeve is so that it can move along fiber axis direction.
The related technical scheme 10 described joints of optical fibre of the utility model are characterised in that; in the technical scheme 9 described joints of optical fibre; has the rear portion housing; it is configured in above-mentioned protection sleeve in the inner space and with above-mentioned jack frame and is connected; protective cover with the above-mentioned optical fibre core of protection forms simultaneously; have stop hole on this rear portion housing, this stop hole engages with the card claw stop that protrudes formation on above-mentioned jack frame.
The related technical scheme 11 described joints of optical fibre of the utility model are characterised in that, in the technical scheme 10 described joints of optical fibre, form the space between the inwall end of the other end of above-mentioned protection sleeve and above-mentioned rear portion housing.
The related technical scheme 12 described joints of optical fibre of the utility model are characterised in that, in the technical scheme 10 or the 11 described joints of optical fibre, above-mentioned optical fibre core is removed the state of specified length with the skin of end of cable, be installed in the above-mentioned joints of optical fibre, link the reinforced pipe that covers optical fibre core in the rear end of above-mentioned rear portion housing.
The related technical scheme 13 described joints of optical fibre of the utility model are characterised in that, in the technical scheme 12 described joints of optical fibre, above-mentioned reinforced pipe links via the rear end that links parts and above-mentioned rear portion housing, and above-mentioned binding parts riveted and fixed is configured in the stretching resistance fiber on the above-mentioned optical cable.
The related technical scheme 14 described joints of optical fibre of the utility model are characterised in that; in the technical scheme 7 described joints of optical fibre; be configured in the interior above-mentioned short fiber of above-mentioned protection sleeve and the fiber position of above-mentioned optical fibre core, consistent with the axle center of above-mentioned optical connector ferrule.
The effect of utility model
According to the joints of optical fibre of the present utility model because an end of protection sleeve combines with optical connector ferrule, thereby with operator's proficiency irrespectively, can correctly locate the protection sleeve that the fusion connecting portion is arranged on middle position.Its result can shorten the lap between the coating portion of the end of protection sleeve and optical fibre core, thus, can significantly shorten the length of protection sleeve, makes the length compactness of the joints of optical fibre.
Thus, by the densification of optical connector, can improve the accommodating property of accommodating to small box body etc.
In addition; coating the protection sleeve on every side of fusion connecting portion; combine with optical connector ferrule; by when connector connects and the optical connector ferrule butt of opposite side; thereby make under the situation that this optical connector ferrule retreats; since with optical connector ferrule integratedly, protection sleeve also retreats, so can be to the very big compressive load of short fiber effect.
Thus, when connector connects operation, can prevent, avoid problems such as the increase of tortuous loss of optical fiber or breakage to the big bending load of short fiber effect that is installed on the optical connector ferrule.
In addition, even optical fibre core for example exposes from the rear of the joints of optical fibre under the outer removed state of optical cable, this exposed portions serve also is reinforced pipe and covers and repair.
Thus,, thereby the skin of optical cable is significantly removed and optical fibre core is exposed outside the joints of optical fibre, also can cover the increase that prevents the tortuous loss of optical fiber etc. by reinforced pipe even connect operation in order to carry out fusion at the scene well.
Description of drawings
Fig. 1 is the outward appearance oblique view of an embodiment of the related joints of optical fibre of the utility model.
Fig. 2 is the exploded perspective view of the joints of optical fibre shown in Figure 1.
Fig. 3 is the decomposition plan view of the joints of optical fibre shown in Figure 1.
Fig. 4 is the decomposition side view of the joints of optical fibre shown in Figure 1.
Fig. 5 is the longitudinal diagram of the joints of optical fibre shown in Figure 1.
Fig. 6 is jack frame shown in Figure 2 and accommodates the exploded perspective view that keeps the optical connector ferrule on this jack frame.
Fig. 7 is the optical connector ferrule shown in Figure 6 and the longitudinal diagram of the protection sleeve that is connected with this optical connector ferrule.
Fig. 8 is the A-A sectional view of Fig. 5.
Fig. 9 is the side view of protection sleeve before thermal shrinkage is handled shown in Figure 2.
Figure 10 is the B-B sectional view of Fig. 9.
Figure 11 is the C-C sectional view of Figure 10.
Figure 12 is the key diagram of length of protection sleeve at the rear of optical connector ferrule shown in Figure 7.
Figure 13 is the longitudinal diagram of other embodiments of the related joints of optical fibre of expression the utility model.
Figure 14 is the B portion amplification profile of Figure 13.
(a)～(c) of Figure 15 is the process chart of the installation steps of the explanation joints of optical fibre.
(d)～(g) of Figure 16 is the process chart of the installation steps of the explanation joints of optical fibre.
(h)～(k) of Figure 17 is the process chart of the installation steps of the explanation joints of optical fibre.
Figure 18 is the longitudinal diagram of another embodiment of the related joints of optical fibre of expression the utility model.
Figure 19 (a) is the longitudinal diagram of the joints of optical fibre shown in Figure 180, (b) be installed reinforced pipe variation want portion's longitudinal diagram.
Figure 20 (a) is the side view of optical connector ferrule, (b) is the front elevation of observing optical connector ferrule from the short fiber side.
Figure 21 (a) is the longitudinal diagram of optical connector ferrule shown in Figure 20, (b) is the longitudinal diagram of the heat-shrinkable tube that is connected with this optical connector ferrule.
Figure 22 is the longitudinal diagram of structure that the expression joints of optical fibre shown in Figure 180 are used for the variation of heart yearn type.
Figure 23 (a)～(e) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180.
Figure 24 (f)～(k) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180.
Figure 25 (1)～(q) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180.
Figure 26 is the key diagram of the structure that is connected with the optical fibre core fusion of the existing short fiber that will be installed in advance on the optical connector ferrule.
Figure 27 is the key diagram of the existing joints of optical fibre.
Embodiment
Below, with reference to the preferred implementation of the related joints of optical fibre of accompanying drawing detailed description the utility model.
Fig. 1 is the outward appearance oblique view of 1 embodiment of the related joints of optical fibre of the utility model, Fig. 2 is the exploded perspective view of the joints of optical fibre shown in Figure 1, Fig. 3 is the decomposition plan view of the joints of optical fibre, and Fig. 4 is the decomposition side view of the joints of optical fibre, and Fig. 5 is the longitudinal diagram of the joints of optical fibre.
The joints of optical fibre 1 of present embodiment, on the end of the optical fibre core 3 that is installed in on-the-spot optical cable 70 outer 72 (all with reference to Figure 13) are removed specified length and exposes, have: optical connector ferrule (ferrule) 7, it installs the short fiber 5 that is connected with optical fibre core 3 fusions in advance; Jack frame 9, it is accommodated and keeps this optical connector ferrule 7; Roughly be retainer 11 cylindraceous, it is chimeric to be installed on the base end side opening that makes the jack frame 9 that optical connector ferrule 7 inserts; Protection sleeve 15, the periphery of the fusion connecting portion 13 (with reference to Figure 11) between its clad optical fiber heart yearn 3 and the short fiber 5 is contained in outward on the fusion connecting portion 13; Rear portion housing 18, it has the inner space 17 that is used for configuration protection sleeve 15, and simultaneously its front end combines with jack frame 9 and integrated with jack frame 9; And protective cover 21, it is accommodated near the end of the optical fibre core 3 that is connected with short fiber 5 fusions, protects this optical fibre core 3, and simultaneously its front end combines with the cardinal extremity of rear portion housing 18 and integrated.
Being shaped as of optical connector ferrule 7 being close to the rear of the front end axial region 7a that is connected with the optical connector ferrule of opposite side, has the wide diameter portion 7b that external diameter enlarges, and in the mode consistent with the central shaft of front end axial region 7a short fiber 5 is installed.In addition, on the periphery of the short fiber 5 extended base end sides of optical connector ferrule 7, as Figure 6 and Figure 7, protrude and sleeve is set in conjunction with protruding 7c, it is used for combining with protection sleeve 15 described later.
If optical connector ferrule 7 inserts in the base end side opening of jack frame 9, then as shown in Figure 5, front end and the reducing diameter part 9a butt that protrudes on the interior week that is arranged on jack frame 9 by wide diameter portion 7b become the forwards mobile state that is limited.Under this state, as shown in Figure 5, limited is that the front end of optical connector ferrule 7 is with the state of specified length L1 from the front end protrusion of jack frame 9.
In addition, to shown in Figure 5, the front end by the optical connector ferrule 7 of jack frame 9 location covers dust cap 22 is installed as Fig. 2, and it is in order to prevent when the keeping etc. on fiber end face stuck-on particle etc.
In addition, on the front end face of optical connector ferrule 7, carry out mirror ultrafinish in advance, thereby do not need to carry out at the scene attrition process.
In the jack frame 9 that optical connector ferrule 7 is inserted, insert lasso and press pressing spring 23.This lasso is that clamping remains on the compression helical spring between the wide diameter portion 7b of the front end of retainer 11 and optical connector ferrule 7 by pressing spring 23, its wide diameter portion 7b to optical connector ferrule 7 carries out resiliency supported, make the reducing diameter part 9a butt of itself and above-mentioned jack frame 9, and can retreat these 11 chimeric interior weeks that are installed in the base end side opening of jack frame 9 of retainer.
The chimeric retainer 11 that is installed in the interior week of base end side opening of jack frame 9, along the circumferential direction on its periphery, protrude the protruding 11a (with reference to Fig. 2) that is provided with by making, engage with the fastening groove 9b (with reference to Fig. 5) on the inner wall part that is formed on jack frame 9, thereby be fixed on the base end side of jack frame 9.
In addition, peel off the end face of the short fiber 5 of clad 5a, cut off and rive by apply folding s tress to optical fiber in advance, perhaps carry out mirror finish, thereby do not need to carry out at the scene mirror finish by grinding.
In addition, the end face of preferred short fiber 5 carried out discharge process and removed the edge before fusion connects, thereby can prevent because the edge generation crimping that grinding produces.And then, because short fiber 5 is carried to the scene removing under the state of clad,, preferably use carbon coating optical fiber in order to suppress to cause strength degradation by scar or suction.In addition, the short fiber 5 preferred little and unpliant optical fiber of MFD that use.
If heat-shrinkable tube 25 is heated to set point of temperature by heater, then carry out thermal shrinkage, become the state that is adjacent to the plug 27 that inserts wherein.
By connecting hole 31b is engaged in conjunction with protruding 7c with sleeve, protection sleeve 15 becomes the state of one end and optical connector ferrule 7 integrally combining.
Above-mentioned protection sleeve 15 when assembling optical fiber connector 1, makes optical fibre core 3 run through insertion with rear portion housing 18 shown in Figure 2 and protective cover 21 in advance, with after short fiber 5 fusions are connected, returns the top of fusion connecting portion 13 at optical fibre core 3.In addition; set the length dimension of heat-shrinkable tube 25, plug 27 and the bonding pipe 29 of short fiber 5 and protection sleeve 15; if link parts 31 and combine with the cardinal extremity of optical connector ferrule 7 so that make, fusion connecting portion 13 length direction roughly on the centre position that just in time is positioned at protection sleeve 15 then.
In more detail; at short fiber 5 with after optical fibre core 3 fusions are connected; protection sleeve 15 is moved on the fusion connecting portion 13; so that it coats this fusion connecting portion 13; at the binding parts 31 that make protection sleeve 15 with after optical connector ferrule 7 combines; to heat-shrinkable tube 25 heating, the front and back optical fibre core 3 of fusion connecting portion 13 and short fiber 5 are fixed with the state that vertically is attached on the plug 27.
As noted above, set the size of each parts, so that when making heat-shrinkable tube 25 thermal shrinkages, as shown in figure 12, the clad 3a of the end of heat-shrinkable tube 25 and optical fibre core 3 and the clad 5a of short fiber 5 are overlapping more than or equal to 3mm.
Under the situation of present embodiment; as shown in Figure 7; set the outside dimension that links parts 31 and plug 27 etc.; so that under the state that makes heat-shrinkable tube 25 thermal shrinkages, the fiber position that is configured in short fiber 5 in the protection sleeve 15 and optical fibre core 3 is consistent with a center of optical connector ferrule 7.
As Fig. 2 and shown in Figure 6,, the positioning convex 31c that axially extends is set at the outer peripheral face of above-mentioned binding parts 31.In addition, on the retainer 11 of the base end side that is fixed on jack frame 9 guiding groove 11c is set, its guiding positioning convex 31c is so that it can move along fiber axis direction.
Thus; when making optical connector ferrule 7 with protection sleeve 15 integrally combining insert jack frame 9; by the position of positioning convex 31c alignment guidance groove 11c is inserted, can successfully optical connector ferrule 7 and protection sleeve 15 be installed in the jack frame 9.
Above-mentioned rear portion housing 18 after handling in the thermal shrinkage of protection sleeve 15, covers on the protection sleeve 15, and the stop hole 18b of front is engaged with the card claw stop 9c of jack frame 9, thereby combines with jack frame 9 and integrated.
Under the situation of present embodiment,, cover and SC connector handle 33 is installed, the handle portion when its conduct is connected with connector in the periphery of the jack frame 9 that combines with rear portion housing 18.This SC connector handle portion 33 provides the exterior member of the front outward appearance of the joints of optical fibre 1, anti-skiddingly uses concavo-convex 33a what lateral surface was formed for easy grasping.
In addition, also can be integrally formed with rear portion housing 18 by the injection mo(u)lding of resin.
Under the situation of present embodiment, as shown in Figure 5, between the inwall end 21a in the other end 15a of protection sleeve 15 and the protective cover 21 relative, form and allow the space 35 that protection sleeve 15 retreats with this other end 15a.
And then, as Fig. 2 and shown in Figure 5,, insert the reinforced pipe 37 that coats optical fibre core 3 is installed at the rear of the inwall end 21a of protective cover 21.
Reinforced pipe 37 is provided with extracting of enlarged-diameter at front end and prevents the 37a of portion, prevents that the 37a of portion card from ending and limiting protecting cover 21 moves rearward by extracting.Reinforced pipe 37 is to have suitable flexible pipe, and it prevents that optical fibre core 3 from bending sharp.
The joints of optical fibre 1 according to the above description because an end of protection sleeve 15 combines with optical connector ferrule 7, so can with operator's proficiency irrespectively, correctly locate protection sleeve 15.Its result; can be with the lap between the coating portion of the end of protection sleeve 15 and optical fibre core 3; foreshorten to about 3mm as shown in figure 12; thus; the length of protection sleeve 15 significantly shortens; the length of the joints of optical fibre 1 is become comprise about the L+26mm of length 26mm of coating minister degree L that short fiber 5 exposes and protection sleeve 15, become compact.
Thus, by the densification of the joints of optical fibre 1, can improve the accommodating property of accommodating to small-sized built on stilts connector box etc.
In addition; coat the short fiber 5 and fusion connecting portion 13 protection sleeve 15 on every side that are installed in advance on the optical connector ferrule 7; combine with optical connector ferrule 7; under the situation that this optical connector ferrule 7 is retreated; since with optical connector ferrule 7 integratedly; protection sleeve 15 also retreats, so can be to the very big compressive load of short fiber 5 effects.
Thus, when connector connects operation, can prevent, avoid the bending loss of optical fiber to increase or problem such as breakage to the very big bending load of short fiber 5 effects that is installed on the optical connector ferrule 7.
In addition; in the joints of optical fibre 1 of present embodiment; protection sleeve 15 has heat-shrinkable tube 25, inserts the plug 27 of this heat-shrinkable tube 25 and the binding parts 31 that bond pipe 29 and be fastened on heat-shrinkable tube 25 1 ends, and these binding parts 31 have the structure that combines with optical connector ferrule 7.
Therefore; protection sleeve 15 will be installed in short fiber 5 on the optical connector ferrule 7 with before on-the-spot optical fibre core 3 fusions are connected; become the end that makes on-the-spot optical fibre core 3 and run through the state of insertion; at short fiber 5 with after optical fibre core 3 fusions are connected; make protection sleeve 15 to optical connector ferrule 7 side shiftings; combine with optical connector ferrule 7 by the binding parts 31 that make protection sleeve 15 1 ends, can become the state that protection sleeve 15 is combined with optical connector ferrule 7 simply.
In addition; protection sleeve 15; at the binding parts 31 of one end with after optical connector ferrule 7 combines; utilize heater to carry out heat treated by the heat-shrinkable tube 25 that will be in its periphery and make the such simple operations of its thermal shrinkage; can keep fusion connecting portion 13 between short fiber 5 and the on-the-spot optical fibre core 3 vertically to be attached to state on the plug 27 securely, can firmly strengthen fusion connecting portion 13.
That is, even be difficult to get all the ready in the scene of implement, also can be simple and reliablely by protection sleeve 15 protection fusion connecting portions 13.
In addition, in the joints of optical fibre 1 of present embodiment, link parts 31 and constitute, by be pressed into, bonding or fusion and stationary heat collapsible tube 25 and plug 27.
Promptly; as the protection sleeve 15 that combines with optical connector ferrule 7; because the heat-shrinkable tube 25 that vertically is attached to the plug 27 on the fusion connecting portion 13 and fusion connecting portion 13 is pushed to this plug 27; be fixed on the binding parts 31 that combine with optical connector ferrule 7; so can optical fiber and the fusion connecting portion 13 in the protection sleeve 15 can not remained the kilter that is difficult to bend owing to the seam that links between parts 31 and the plug 27 produces bending.In addition, in the joints of optical fibre 1 of present embodiment, linking parts 31 is the structure of stationary heat collapsible tube 25 and plug 27, but also can only fix and in conjunction with plug 27.
In addition; in the joints of optical fibre 1 of present embodiment; has jack frame 9; it protrudes the leading section of optical connector ferrule 7; accommodate simultaneously and keep this lasso 7; on this jack frame 9, form guiding groove 11c, the positioning convex 31c that its guiding is protruded at the outer peripheral face of protection sleeve 15 so that its can move along fiber axis direction.
Promptly; the protection sleeve 15 that the binding parts 31 of one end combine with optical connector ferrule 7; guiding groove 11c by positioning convex 31c that protrude to be provided with on its periphery and the jack frame 9 of accommodating maintenance optical connector ferrule 7 engages, and protection sleeve 15 only can be moved along fiber axis direction with respect to jack frame 9.
Thus, when connector connects and the optical connector ferrule butt of opposite side and under the situation that this optical connector ferrule 7 retreats, can successfully make the protection sleeve 15 with optical connector ferrule 7 one carry out backward movement.
In addition; in the joints of optical fibre 1 of present embodiment; has rear portion housing 18; it is connected with jack frame 9 under the state that protection sleeve 15 is configured in inner space 17; protective cover 21 with protection optical fibre core 3 forms simultaneously; have stop hole 18b on this rear portion housing 18, it engages with the card claw stop 9c that protrudes formation on jack frame 9.
Thus, because the periphery of protection sleeve 15 is protected by being covered by rear portion housing 18, so can make the processing when accommodating become easy to built on stilts connector box.
In addition, rear portion housing 18 is owing to only by the card claw stop 9c that is installed on the jack frame 9 is engaged with the locational stop hole 18b that is formed near jack frame 9, just can be connected with jack frame 9, so can easily assemble at the scene, can make on-the-spot operation become easy.
In addition; in the joints of optical fibre 1 of present embodiment; carry out butt when connector connects and between the optical connector ferrule of opposite side and make under the situation that this optical connector ferrule 7 retreats; with optical connector ferrule 7 integratedly; protection sleeve 15 also retreats; but owing between the inwall end of the other end of protection sleeve 15 and rear portion housing 18, form space 35; so backward movement that can limiting protecting sleeve 15, thereby can when connecting, connector accept retreating of optical connector ferrule 7 like a cork.
Below, other embodiments of the joints of optical fibre that the utility model is related are described.
The joints of optical fibre of this embodiment have reinforced pipe, and it covers on the optical fibre core that exposes at joints of optical fibre rear on being installed in on-the-spot end of cable the time, protects this optical fibre core.In addition, reinforced pipe has been installed also in embodiment before, but in the present embodiment, has been described in detail its structure and installation method particularly.
In addition, in the present embodiment, because structure except reinforced pipe is identical with before embodiment, so to same section, position mark same numeral, omission explanation.
Figure 13 is the longitudinal diagram of other embodiments of the related joints of optical fibre of the utility model, and Figure 14 is the B portion amplification profile of Figure 13, and Figure 15 is the process chart of the number of assembling steps of the explanation joints of optical fibre.
The joints of optical fibre 1A that present embodiment is related; because the optical fibre core 3 that will expose at the skin 72 of removing on-the-spot optical cable 70 and the short fiber 5 of optical connector ferrule 7 carry out fusion when being connected; if the operation when fusion is connected is good the skin 72 of optical cable 70 ends is peeled off in a large number; then optical fibre core 3 can expose at the rear of joints of optical fibre 1A; thereby has a reinforced pipe 42; it coats the part of this optical fibre core that exposes 3, protects this optical fibre core 3.
In addition, if peel off the skin 72 of (removal) optical cable 70 ends, then expose periphery is drawn (kevlar) (with reference to Figure 14) covering by the Kev of stretching resistance fiber 74 optical fibre core 3.
Reinforced pipe 42, it inserts the front end of protective cover 21, and the rear end by the riveted joint ring 44 of conduct binding parts with rear portion housing 18 links.In detail, riveted joint ring 44 is at one end gone up large-diameter portion 44a that forms and the minor diameter 44b that forms as shown in figure 14 on the other end, form continuous roughly cylinder-like body via pars intermedia 44c.
The size openings of large-diameter portion 44a gently to engage with the rear end outer peripheral face of rear portion housing 18 if rivet then reduced from the compression of external diameter direction, thereby fixedly is fastened on the rear portion housing 18.Thus, if insert optical cable 70 from the minor diameter 44b side of riveted joint ring 44, the stretching resistance fiber 74 that will have exposed having removed the skin 72 of optical cable 70 with specified length simultaneously is configured under the state on the rear portion housing 18, compression riveted joint large-diameter portion 44a, then become stretching resistance fiber 74 by the state of rear portion housing 18, thereby be fixed on the rear portion housing 18 with 44 clampings of riveted joint ring.
Minor diameter 44b has can rivet the ring 46 that ground forms on the outer peripheral face of this minor diameter 44b.By rivet this ring 46 from the external diameter direction, reinforced pipe 42 is riveted ring 44 with the end minor diameter 44b fixes with the state of ring 46 clampings.That is, reinforced pipe 42 on the end integratedly equipment as with the riveted joint ring 44 of the binding parts of rear portion housing 18, form reinforced pipe assembly 40 described later.In addition,, only limited reinforced pipe 42 by internal face 21a (with reference to Fig. 5) card and move by under the state of riveting at ring 46 to the rear side of protective cover 21 with protective cover 21.Extracting in the embodiment before this ring 4 is equivalent to prevents the 37a of portion.
Reinforced pipe 42 is distolateral at another, and by heat-shrinkable tube 48 location and fixing, these heat-shrinkable tube 48 parts are configured on this reinforced pipe 42, and a part is configured on the skin 72 of optical cable 70.That is, reinforced pipe 42 forms to cover with specified length removes the skin 72 of optical cable 70 and the length of the part of the optical fibre core 3 that exposes from the rear of joints of optical fibre 1A, can combine with joints of optical fibre 1A and covers optical fibre core 3, and can not produce offset.
The following describes the installation steps when reinforced pipe 42 is installed.
At first, shown in Figure 15 (a), each part mentioned above is inserted with protective cover 21, the reinforced pipe assembly 40 that has engaged riveted joint ring 44, the order of rear portion housing 18 in the end of optical cable 70 at the scene.
Reinforced pipe assembly 40 is that heat-shrinkable tube 48 is installed on protective cover 21 side ends of reinforced pipe 42, simultaneously in the end of rear portion housing 18 sides in advance riveted and fixed as the riveted joint ring 44 that links parts.
Heat-shrinkable tube 48 is fixed on the reinforced pipe 42 by only making the part heat shrink that is positioned on the reinforced pipe 42.Riveted joint ring 44 fixing embeds by the end at reinforced pipe 42 under the state of minor diameter 44b of riveted joint ring 44, utilizes 46 pairs of reinforced pipes 42 of ring to compress riveted joint on minor diameter 44b and realizes.
The optical fibre core 3 of drawing from protection sleeve 15 shown in Figure 15 (d), exposes the part 3b of bare fibre removing clad 3a, and then behind this part of cleaning 3b, carries out the minute surface cutting with specified length.Then, shown in Figure 15 (e), part 3b and the chimeric part 5b that peels off clad that is installed in the short fiber 5 on the jack frame 9 that peels off the clad 3a of optical fibre core 3 is close to, between the fiber end face of being close to, carries out fusion and connect.
Then, rear portion housing 18 carries out move identical with protection sleeve 15 shown in Figure 16 (g), under the state that covers on the protection sleeve 15, combines with jack frame 9 and integrated.
Then, in order to cover the optical fibre core 3 that exposes from the end of optical cable 70 by reinforced pipe 42, reinforced pipe assembly 40 is moved and combine with rear portion housing 18, at first, shown in Figure 17 (h), under the state on the rear end outer peripheral face that stretching resistance fiber 74 is configured in rear portion housing 18, behind the mobile reinforced pipe assembly 40, with stretching resistance fiber 74 riveted and fixed on large-diameter portion 44a as the riveted joint ring 44 that links parts.Thus, reinforced pipe assembly 40 combines with rear portion housing 18 and is integrated.Then, protective cover 21 moves on the reinforced pipe assembly 40 and is installed on the rear portion housing 18 shown in Figure 17 (i).
The other end of reinforced pipe assembly 40 shown in Figure 17 (j), make heat-shrinkable tube 48 heat shrink and positioning and fixing on optical cable 70.
Through above-mentioned operation, an end of reinforced pipe assembly 40 is located by rear portion housing 18 and protective cover 21, and the other end is located by heat-shrinkable tube 48.Thus, reinforced pipe assembly 40 has been limited along the moving of fiber axis direction, and prevents the offset of optical fibre core 3 parts exposed from the rear of joints of optical fibre 1A.
At last, shown in Figure 17 (k), SC connector handle 33 is installed on jack frame 9 and is finished assembling.
According to above-mentioned embodiment, even connecting operation in order to carry out fusion well, a large amount of skins of removing on-the-spot optical cable and under the situation that optical fibre core is exposed from the joints of optical fibre, because the optical fibre core that exposes is coated by reinforced pipe, even so external force such as effect bending, also can stop bending, prevent that light-transfer characteristic from reducing more than or equal to allowable value.
Below, another embodiment that the utility model is related is described.
Figure 18 is the longitudinal diagram of another embodiment of the related joints of optical fibre of expression the utility model.In addition, in the present embodiment, the part identical with above-mentioned embodiment, position mark same numeral are described.
The joints of optical fibre of present embodiment, go for connecting optical cable 70 the optical cable type, connect optical fibre core 3 the heart yearn type the two.The heart yearn type joints of optical fibre are slightly different except the shape of SC connector handle, and other use and the roughly general parts of the optical cable type joints of optical fibre.In following explanation, the optical cable type joints of optical fibre (also abbreviating " joints of optical fibre " as) 1B is described mainly.
Joints of optical fibre 1B mainly has following parts; that is, from the front (left side of Figure 18) that combines with the opposite side joints of optical fibre begin for: SC connector handle 81, jack frame 83, optical fiber built-in lasso (optical connector ferrule) 85, protection sleeve 87, lasso are pressed pressing spring 89, rear portion housing 91, riveted joint ring 93 and protective cover 95.That is, become the structure that does not use the retainer 11 that illustrates in the above-mentioned embodiment, links parts 31.
Figure 19 (a) is the longitudinal diagram of the joints of optical fibre shown in Figure 180, (b) be install reinforced pipe variation want portion's longitudinal diagram, Figure 20 (a) is the side view of optical connector ferrule, (b) is the front elevation from short fiber side observation optical connector ferrule.
Being shaped as of optical connector ferrule 85, with the rear of the front end axial region 7a of the relative connection of optical connector ferrule of opposite side, the extended wide diameter portion 7b of configuration external diameter installs short fiber 5 in the front end axial region 7a mode consistent with central shaft.In addition, in the periphery of the short fiber 5 extended base end sides of optical connector ferrule 85, protrude and sleeve is set in conjunction with protruding 7c, it is used for combining with protection sleeve 87 described later.
If optical connector ferrule 85 inserts in the base end side opening of jack frame 83, then as shown in figure 19, front end and the reducing diameter part 9a butt that protrudes on the interior week that is arranged on jack frame 83 by wide diameter portion 7b become the forwards mobile state that is limited.Under this state, limited is that the front end of optical connector ferrule 85 is with the state of specified length L1 from the front end protrusion of jack frame 83.
Front end by the optical connector ferrule 85 of jack frame 83 location covers not shown dust cap (with reference to label among Fig. 2 22) is installed, and it is used to prevent when keeping on fiber end face stuck-on particle etc.
In addition, on the front end face of optical connector ferrule 85, carry out mirror ultrafinish in advance, thereby do not need to carry out at the scene attrition process.
In the jack frame 83 of inserting optical connector ferrule 85, insert lasso and press pressing spring 89.This lasso is that clamping remains on the compression helical spring between the wide diameter portion 7b of the rear portion housing 91 that engages with jack frame 83 described later and optical connector ferrule 85 by pressing spring 89, its wide diameter portion 7b to this optical connector ferrule 85 carries out resiliency supported, make the reducing diameter part 9a butt of itself and above-mentioned jack frame 83, and can retreat.
Figure 21 (a) is the optical connector ferrule shown in Figure 20 and the longitudinal diagram of the heat-shrinkable tube that is connected with this optical connector ferrule, (b) is the A-A longitudinal diagram of heat-shrinkable tube in (a).
In addition, peel off the end face of the short fiber 5 of clad 5a, cut off and rive by apply folding s tress to optical fiber in advance, perhaps carry out mirror finish, thereby do not need to carry out at the scene mirror finish by grinding.
In addition, the end face of preferred short fiber 5 carries out discharge process and removes the edge before fusion connects, thereby can prevent because the edge generation crimping that grinding produces.And then, because short fiber 5 is carried to the scene removing under the state of clad,, preferably use carbon coating optical fiber so cause strength degradation by scar or suction in order to suppress.In addition, the short fiber 5 preferred little and unpliant optical fiber of MFD that use.
If heat-shrinkable tube 25 is heated to set point of temperature by heater, then carry out thermal shrinkage, become the state that is adjacent to the plug 27 that inserts wherein.
As noted above, set the size of each parts, so that when making heat-shrinkable tube 25 thermal shrinkages, it is overlapping more than or equal to 2mm that the clad 3a of the end of heat-shrinkable tube 25 and optical fibre core 3 and sleeve combine protruding 7c.
Above-mentioned rear portion housing 91 after handling in the thermal shrinkage of protection sleeve 87, moves on the protection sleeve 87 and covers, and the card claw stop 91b of front is engaged with the stop hole 83a of jack frame 83, thereby combines with jack frame 83 and integrated.
In the periphery of the jack frame 83 that combines with rear portion housing 91, cover SC connector handle 81, the handle portion when it connects as connector are installed.This SC connector handle portion 81 is the exterior member of front outward appearance that joints of optical fibre 1B is provided, anti-skiddingly uses concavo-convex 81a what lateral surface was formed for easy grasping.
In addition, also can be integrally formed with rear portion housing 91 by the injection mo(u)lding of resin.
Between the inwall end in other end 87a of protection sleeve 87 (with reference to Figure 21) and the protective cover 95 relative, form and allow the space 35 (with reference to Figure 19) that protection sleeve 87 retreats with this other end 87a.
In addition, protective cover 95 also can have at the rear of inwall end and insert the reinforced pipe 37 that coating optical cable 70 is installed shown in Figure 19 (b).
Reinforced pipe 37 is provided with extracting of enlarged-diameter at front end and prevents the 37a of portion, prevents that the 37a of portion card from only limiting move on the inwall end of protective cover 95 by extracting.Reinforced pipe 37 is to have suitable flexible pipe, and it prevents that optical cable 70 from sharply bending.
Side at the wide diameter portion 7b of optical connector ferrule 85 is provided with direction mating mark 97a.On the other hand, direction mating mark 97b and identification slot 99 are set on the sidewall of jack frame 83.By utilizing on one side identification slot 99 to confirm direction mating mark 97a, Yi Bian make it consistent with direction mating mark 97b, can so that optical connector ferrule 85 with standard towards chimeric with jack frame 83.
Joints of optical fibre 1B, when the optical fibre core 3 that will expose at the skin 72 of removing on-the-spot optical cable 70 was connected with short fiber 5 fusions of optical connector ferrule 85, the operation when making the fusion connection became easily, and the skin 72 of optical cable 70 ends is peeled off in a large number.If (removal) skin 72 is peelled off in the end of optical cable 70, then expose the optical fibre core 3 that periphery is covered by stretching resistance fiber (Kev draws) 74.
Stretching resistance fiber 74 and outer 72 is cut off with specified length, inserts the rearward end 91c of rear portion housing 91 from the outside.Periphery at the skin 72 that inserts from the outside coats riveted joint ring 93, and riveted joint ring 93 is riveted to the undergauge direction.By riveted joint ring 93 undergauges, make skin 72 and stretching resistance fiber 74 by riveted joint ring 93 and rearward end 91c crimping, be fixed on the rear portion housing 91.
Figure 22 is the longitudinal diagram of structure that the expression joints of optical fibre shown in Figure 180 are applicable to the variation of heart yearn type.
As mentioned above, the joints of optical fibre 1B in the present embodiment also can be used as the use of heart yearn type.In the case, the difference of its modular construction is that the shape of SC connector handle 81 is slightly different, does not need to be used for fixing the riveted joint ring 93 of stretching resistance fiber 74, skin 72, and other are identical.In addition, in Figure 22, the reinforced pipe of 37 expression optical fibre cores, 3 usefulness.
Joints of optical fibre 1B according to the above description because an end of protection sleeve 87 combines with optical connector ferrule 85, so with operator's proficiency irrespectively, can correctly locate protection sleeve 87.Its result can foreshorten to the lap between the coating portion of the end of protection sleeve 87 and optical fibre core 3 about 3mm, and thus, the length of protection sleeve 87 significantly shortens, and can make the length of the joints of optical fibre 1 become compact.
Thus, by the densification of joints of optical fibre 1B, can improve the accommodating property of accommodating to small-sized built on stilts connector box etc.
In addition; coat the short fiber 5 and fusion connecting portion 13 protection sleeve 87 on every side that are installed in advance on the optical connector ferrule 85; combine with optical connector ferrule 83; under the situation that this optical connector ferrule 85 is retreated; since with optical connector ferrule 85 integratedly; protection sleeve 87 also retreats, so can not act on very big compressive load on short fiber 5.
Thus, when connector connects operation, can prevent, avoid the bending loss of optical fiber to increase or problem such as breakage to the very big bending load of short fiber 5 effects that is installed on the optical connector ferrule 85.
In addition, in the joints of optical fibre 1B of present embodiment, protection sleeve 87 has heat-shrinkable tube 25, inserts plug 27 and bonding pipe 29 in this heat-shrinkable tube 25, and protection sleeve 87 has the structure that combines with optical connector ferrule 85.
Therefore; protection sleeve 87 is after the sleeve that makes the one end with optical connector ferrule 85 combines protruding 7c combination; utilizing heater to carry out heat treated by the heat-shrinkable tube 25 that will be positioned at its periphery makes this heat-shrinkable tube 25 shrink such simple operations; can keep fusion connecting portion 13 between short fiber 5 and the on-the-spot optical fibre core 3 vertically to be attached to state on the plug 27 securely, can firmly strengthen fusion connecting portion 13.
That is, even be difficult to get all the ready in the scene of implement, also can be simple and reliablely by protection sleeve 87 protection fusion connecting portions 13.
Below, the installation steps of the joints of optical fibre 1B with said structure are described.
Figure 23 (a)～(e) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180, Figure 24 (f)～(k) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180, and Figure 25 (l)～(q) is the process chart of the installation steps of the explanation joints of optical fibre shown in Figure 180.
When assembling optical fiber connector 1B, at first, shown in Figure 23 (a), the end of optical cable 70 at the scene with protective cover 95, riveted joint ring 93, rear portion housing 91, and lasso press the order insertion each part mentioned above of pressing spring 89.
Shown in Figure 23 (b), remove the skin 72 of the front of optical cable 70, cut unnecessary stretching resistance fiber 74.Shown in Figure 23 (c), on outer 72, cut out along the joint-cutting 103 of axis direction and cut.Shown in Figure 23 (d), outer 72 and the stretching resistance fiber that exposes 74 turn back in order not influence subsequent job.Shown in Figure 23 (e), optical fibre core 3 inserts in the protection sleeve 87.
The optical fibre core 3 of drawing from protection sleeve 87 shown in Figure 24 (f), after exposing the part 3b of bare fibre, cleans this part 3b removing clad 3a.Shown in Figure 24 (g), protection sleeve 87 and optical fibre core 3 are set in structure of fiber_optic 105A in fusion.Shown in Figure 24 (h), after minute surface cutting specified length, protection sleeve 87 and optical fibre core 3 are arranged in the not shown fusion machine.
On the other hand, shown in Figure 24 (i), the optical connector ferrule 85 of built-in short fiber 5 is arranged on the cover coil support 105B.In addition, 22 expression dust caps among the figure.Shown in Figure 24 (j), will keep the cover coil support 105B of optical connector ferrule 85 to be arranged in the not shown fusion machine.Shown in Figure 24 (k), utilize the fusion machine, carry out fusion after the part 5b that the part 3b of optical fibre core 3 being stripped from clad 3a and the short fiber 5 of optical connector ferrule 85 are peeled off clad 5a is close to and be connected.
Shown in Figure 25 (l), the sleeve that the front end of protection sleeve 87 is inserted optical connector ferrule 85 covers fusion connecting portion 13 in conjunction with among the protruding 7c, makes protection sleeve 87 heat shrink.Shown in Figure 25 (m), the stretching resistance fiber 74 and outer 72 of turning back is restored.
Shown in Figure 25 (n), optical connector ferrule 87 is pulled down from dust cap 22, insert jack frame 83 from the front of optical connector ferrule 85, rear portion housing 91 is assembled on the jack frame 83 in by pressing spring 89 accommodating lasso.Shown in Figure 25 (o), stretching resistance fiber 74 is covered on the rearward end 91c of rear portion housing 91 with outer 72.
Shown in Figure 25 (p), crimping riveted joint ring 93 is fixed on stretching resistance fiber 74 and outer 72 on the rearward end 91c.At last, SC connector handle 81 and protective cover 95 are combined with jack frame 83 and rear portion housing 91 respectively, thereby finish the assembling of joints of optical fibre 1B.
Claims (14)
1. joints of optical fibre, it is accommodated, and to keep fusion connecting portion, this fusion connecting portion be to carry out fusion and be formed by connecting being installed in short fiber on the optical connector ferrule and optical fibre core, it is characterized in that,
One end of the protection sleeve that above-mentioned fusion connecting portion is strengthened combines with above-mentioned optical connector ferrule.
2. the joints of optical fibre according to claim 1 is characterized in that,
Above-mentioned protection sleeve has heat-shrinkable tube, inserts plug and bonding pipe in this heat-shrinkable tube, and this protection sleeve combines with above-mentioned optical connector ferrule.
3. the joints of optical fibre according to claim 1 and 2 is characterized in that,
Above-mentioned optical fibre core is removed the state of specified length with the skin of end of cable, is installed in the above-mentioned joints of optical fibre, and another that above-mentioned protection sleeve is not combining with above-mentioned optical connector lasso is distolateral, covers the periphery of above-mentioned optical fibre core.
4. the joints of optical fibre according to claim 1 and 2 is characterized in that,
Have jack frame, it protrudes the leading section of above-mentioned optical connector ferrule, accommodates this lasso simultaneously.
5. the joints of optical fibre according to claim 4 is characterized in that,
Have the rear portion housing, it is configured in above-mentioned protection sleeve in the inner space and with above-mentioned jack frame and is connected, and has the card claw stop on this rear portion housing, this card claw stop with penetrate the stop hole that is arranged on the above-mentioned jack frame and engage.
6. the joints of optical fibre according to claim 5 is characterized in that,
Be configured in the stretching resistance fiber on the above-mentioned optical cable, riveted and fixed is on the rearward end of above-mentioned rear portion housing.
7. joints of optical fibre; it is accommodated and keeps the fusion connecting portion; one end of the protection sleeve that above-mentioned fusion connecting portion is strengthened combines with optical connector ferrule; this fusion connecting portion is that short fiber and the optical fibre core fusion that will be installed on the above-mentioned optical connector ferrule are formed by connecting; it is characterized in that
The binding parts that above-mentioned protection sleeve has heat-shrinkable tube, inserts the plug in this heat-shrinkable tube and bond pipe and be fastened on an end of above-mentioned heat-shrinkable tube, this links parts and combines with above-mentioned optical connector ferrule.
8. the joints of optical fibre according to claim 7 is characterized in that,
On above-mentioned binding parts, fix above-mentioned plug.
9. the joints of optical fibre according to claim 7 is characterized in that,
Has jack frame; it protrudes the leading section of above-mentioned optical connector ferrule, accommodates this lasso simultaneously, forms guiding groove on this jack frame; the positioning convex channeling conduct that this guiding groove protrudes the outer peripheral face at above-mentioned protection sleeve is so that it can move along fiber axis direction.
10. the joints of optical fibre according to claim 9 is characterized in that,
Has the rear portion housing; it is configured in above-mentioned protection sleeve in the inner space and with above-mentioned jack frame and is connected; protective cover with the above-mentioned optical fibre core of protection forms simultaneously; have stop hole on this rear portion housing, this stop hole engages with the card claw stop that protrudes formation on above-mentioned jack frame.
11. the joints of optical fibre according to claim 10 is characterized in that,
Between the inwall end of the other end of above-mentioned protection sleeve and above-mentioned rear portion housing, form the space.
12. according to the claim 10 or the 11 described joints of optical fibre, it is characterized in that,
Above-mentioned optical fibre core is removed the state of specified length with the skin of end of cable, is installed in the above-mentioned joints of optical fibre, links the reinforced pipe that covers optical fibre core in the rear end of above-mentioned rear portion housing.
13. the joints of optical fibre according to claim 12 is characterized in that,
Above-mentioned reinforced pipe links via the rear end that links parts and above-mentioned rear portion housing, and above-mentioned binding parts riveted and fixed is configured in the stretching resistance fiber on the above-mentioned optical cable.
14. the joints of optical fibre according to claim 7 is characterized in that,
Be configured in the interior above-mentioned short fiber of above-mentioned protection sleeve and the fiber position of above-mentioned optical fibre core, consistent with the axle center of above-mentioned optical connector ferrule.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-307138 | 2006-11-13 | ||
| JP2006307138 | 2006-11-13 | ||
| JP2007-006251 | 2007-01-15 |
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| CN201152902Y true CN201152902Y (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201949635U Expired - Fee Related CN201152902Y (en) | 2006-11-13 | 2007-11-13 | Optical fiber connector |
| CN2007800421371A Active CN101535857B (en) | 2006-11-13 | 2007-11-13 | Optical connector |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007800421371A Active CN101535857B (en) | 2006-11-13 | 2007-11-13 | Optical connector |
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| CN (2) | CN201152902Y (en) |
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| CN101535857B (en) * | 2006-11-13 | 2011-12-07 | 住友电气工业株式会社 | Optical connector |
| CN102282493A (en) * | 2009-10-28 | 2011-12-14 | Sei光学前沿株式会社 | Method for assembling optical connector |
| CN102301265A (en) * | 2009-02-13 | 2011-12-28 | 株式会社藤仓 | Optical connector and method for assembling optical connector |
| CN102576133A (en) * | 2009-10-28 | 2012-07-11 | Sei光学前沿株式会社 | Optical connector |
| CN103984060A (en) * | 2013-02-07 | 2014-08-13 | 株式会社藤仓 | Optical fiber cable including connector, and optical connector |
| CN104049307A (en) * | 2013-03-12 | 2014-09-17 | 韩国Nwc公司 | Optical connector |
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| KR101038195B1 (en) * | 2010-07-08 | 2011-06-01 | 박찬설 | Assembliy method and optical connector for assembling in the field |
| CN102866467A (en) * | 2011-07-05 | 2013-01-09 | 朴撰卨 | Optical fiber connector |
| CN102298178B (en) * | 2011-08-23 | 2013-09-18 | 南京普天通信股份有限公司 | Welding type fiber connector |
| CN108761644A (en) * | 2018-07-26 | 2018-11-06 | 南京华脉科技股份有限公司 | A kind of scene welding quick connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04271307A (en) * | 1991-02-27 | 1992-09-28 | Sumitomo Electric Ind Ltd | Reinforcing member for optical coupler and method for reinforcing optical coupler |
| DE19933740C2 (en) * | 1999-07-19 | 2003-10-30 | Ccs Technology Inc | Optical fiber connector and method for connection to the end of an optical fiber |
| CN201152902Y (en) * | 2006-11-13 | 2008-11-19 | 住友电气工业株式会社 | Optical fiber connector |
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2007
- 2007-11-13 CN CNU2007201949635U patent/CN201152902Y/en not_active Expired - Fee Related
- 2007-11-13 CN CN2007800421371A patent/CN101535857B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101535857B (en) * | 2006-11-13 | 2011-12-07 | 住友电气工业株式会社 | Optical connector |
| CN102301265B (en) * | 2009-02-13 | 2014-04-16 | 株式会社藤仓 | Optical connector and method for assembling optical connector |
| CN102301265A (en) * | 2009-02-13 | 2011-12-28 | 株式会社藤仓 | Optical connector and method for assembling optical connector |
| US8690454B2 (en) | 2009-10-28 | 2014-04-08 | Sei Optifrontier Co., Ltd. | Optical connector |
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| CN103984060A (en) * | 2013-02-07 | 2014-08-13 | 株式会社藤仓 | Optical fiber cable including connector, and optical connector |
| CN103984060B (en) * | 2013-02-07 | 2016-03-02 | 株式会社藤仓 | The fiber optic cables of Belt connector and optical connector |
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| US11391903B2 (en) * | 2020-03-10 | 2022-07-19 | Prysmian S.P.A. | Blocking an optical fiber in a fiber optic cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101535857B (en) | 2011-12-07 |
| CN101535857A (en) | 2009-09-16 |
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Granted publication date: 20081119 Termination date: 20111113 |