Source: https://patents.google.com/patent/CH700369A1/en
Timestamp: 2020-01-25 06:00:28
Document Index: 474664553

Matched Legal Cases: ['art 1', 'art 1', 'arts 8', 'art 12', 'art 12', 'art 12', 'arts 8', 'arts 8', 'arts 8', 'art 1', 'art 12', 'arts 8', 'art 1', 'arts 8', 'art 1', 'art 1', 'arts 8', 'art 8', 'art 1', 'arts 8', 'art 1', 'arts 8', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art\n2009']

CH700369A1 - Plug part for an optical plug-in connection. - Google Patents
Plug part for an optical plug-in connection. Download PDF
CH700369A1
CH700369A1 CH00164/09A CH1642009A CH700369A1 CH 700369 A1 CH700369 A1 CH 700369A1 CH 00164/09 A CH00164/09 A CH 00164/09A CH 1642009 A CH1642009 A CH 1642009A CH 700369 A1 CH700369 A1 CH 700369A1
CH00164/09A
Harry Uboldi
Dionigi Sergio Fantini
2009-02-05 Application filed by Diamond Sa filed Critical Diamond Sa
2009-02-05 Priority to CH00164/09A priority Critical patent/CH700369A1/en
2010-08-13 Publication of CH700369A1 publication Critical patent/CH700369A1/en
Plug part (1) for an optical connector, comprising a plug pin (2) in which a fiber optic stub extending over a longitudinal central axis (3) is held, and a sleeve-like pin holder (4) comprising a pin receiving portion (5) in which the plug pin is held and an optical waveguide receiving portion (6) to which the end of an optical fiber cable tensile strength fixed, wherein the optical waveguide receiving portion (6) at least two interconnectable shell parts (8, 8 ') and the optical fiber stub is weldable with a cable side optical fiber end, said to has a welding end of the optical fiber stub in the region of the shell parts (8, 8 ') and at least one of the shell parts (8, 8') at least one factory-applied adhesive layer (25, 25 ') for connecting the at least two shell parts (8, 8') ,
The present invention relates to a plug part for an optical connector according to the preamble of claim 1.
Such connector parts are factory pre-assembled, wherein the connection with the actual optical fiber cable under field moderate conditions by welding takes place directly on the plug part. The purpose of pre-assembly is to enable the difficult centering and fixing of the optical waveguide in the connector pin as well as the complex grinding process to be carried out under suitable factory conditions.
For example, the plug parts of WO 96/31 795 A1 or EP 864 888 A1 are known from the prior art. To attach the welding electrodes while special openings or recesses are provided. A disadvantage of these plug parts is that the weld itself is difficult to access and that observation of the welding process is difficult.
Further known is a plug part of WO 2004/001 472 A1, according to which two shell parts can be pivoted out of the longitudinal center axis of the plug part, so that the end of the preassembled optical fiber stub for welding is optimally accessible. After the welding process, the two shell parts are provided with an adhesive and swung back into their original position and glued. Pins and pin holes ensure the correct positioning. The two shell parts are formed so that they on the one hand firmly cover the jacket of an optical waveguide and on the other hand envelop the welding point of the optical waveguide force-free. This plug part is designed relatively complex and requires a precise manufacturing.
In addition, the two shell parts under field moderate conditions to be provided with an adhesive, which requires well-trained staff.
In the following, the term optical fiber is understood as a glass fiber as such, while the term fiber optic cable one or more optical fibers with one or more additional plastic sheathing and optional strain relief, for example in the form of aramid fibers understood.
It is an object of the invention to overcome the disadvantages of the prior art. In particular, a plug part is to be made available, which makes the fiber stub for welding easily accessible and is easy to assemble under field conditions. Both the pre-assembly, as well as the final assembly of the plug part should be carried out quickly and without expensive tools. Finally, after the final assembly, the welding point should be optimally protected against mechanical stress and against contamination as well as against environmental influences.
This object is achieved by a plug part having the features in claim 1. Further embodiments emerge from the dependent claims.
An inventive connector part for an optical connector, comprises a connector pin and a sleeve-like pin holder, wherein the pin holder comprises a pin receiving portion and an optical waveguide receiving portion. The pin receiving portion of the pin holder accommodates the pin, while the end of an optical fiber cable or an optical fiber tensile strength can be fixed at the optical waveguide receiving portion. The optical waveguide receiving portion has at least two mutually connectable jacket parts. In the connector pin, a light waveguide stub extending over a longitudinal central axis is held, which is welded to one end of an optical waveguide cable or an optical waveguide. In this case, the end of the optical waveguide stub to be welded lies in the region of the jacket parts.
At least one of the shell parts has at least one preferably factory-applied adhesive layer for connecting the at least two shell parts. The fact that the adhesive layer is already present for connecting the shell parts, the packaging process under field conditions is greatly facilitated. In addition, the fitter does not have to carry a separate adhesive with him and the correct dosage is eliminated locally. Likewise, contamination of sensitive plug and tool parts by adhesive due to improper handling is avoided.
The adhesive layer is advantageously arranged on each of the adjacent shell part opposite contact surface of the shell parts. Thus, the shell parts can be easily interconnected and the optical waveguide is covered on both sides.
The adhesive layer may be covered by a protective film prior to processing of the male part. As a result, the handling of the connector part is simplified, the shell parts do not stick together unintentionally and the adhesive layer is protected from dirt and dehydration. If the protective film protrudes beyond the adhesive layer at at least one location, grasping and removing the protective film is simplified.
The adhesive layer is advantageously elastic, i. during compression and bonding of the two shell parts located between the two shell parts or between the two layers of adhesive welded optical waveguide is completely enveloped by the adhesive layers. At the same time thus the welded optical waveguide is protected from environmental influences, such as moisture. In addition, the elasticity of the adhesive layer avoids unnecessary stresses at the welding point of the optical waveguide.
If the adhesive layer has a thickness between 80 [micro] m and 300 [micro] m, in particular between 100 [micro] m and 200 [micro] m, preferably between 125 [micro] m and 150 [micro] m, and the adhesive layer has a corresponding elasticity, even a corresponding to the optical waveguide groove in the shell part can be dispensed with.
The adhesive layer may consist of a double-sided adhesive tape. This facilitates the pre-assembly of the plug part, since thus the protective film is already available by default.
The adhesive tape may consist of a carrier material and double-sided adhesive. Alternatively, an adhesive tape is conceivable, which consists only of an adhesive. Preferably, the adhesive is a glass fiber-suitable material, for example an acrylic polymer.
The optical waveguide receiving portion may include a head portion for connecting to the pin receiving portion and two sheath portions. The head part may for example have a snap closure cooperating with the pin receiving portion. By separating the optical waveguide receiving section and the pin receiving section, different materials having different properties can be used. The separation also has advantages in the production of the two parts.
In addition, at least one casing part may be fastened with a hinge on the head part. Advantageously, the joint is formed so that the shell part is pivotable about a certain pivot angle between an open position and a closed position. As a result, the jacket part for the welding process can be pivoted away from the end of the optical waveguide stub provided for welding away from its starting position, in which it lies parallel to the longitudinal central axis of the plug part, into an open position. The provided for welding end of the optical fiber stub is thus exposed and is easily accessible for welding.
The pin receiving portion and the optical waveguide receiving portion with its shell parts may also be integrally formed. Advantageously, in this case at least one casing part with a joint on the pin receiving portion is fixed so that the casing part is pivotable about a certain pivot angle between an open position and a closed position. The pin could be poured, for example, in the pin receiving section. Other types of Befestigung.wie such as pressing or gluing are also conceivable. The field-moderate handling of the plug part is thus simplified and the production cost, since additional items omitted.
However, the pin holder can also consist of two shell parts, which can be assembled along the longitudinal central axis. It is also advantageous if in this case at least one casing part is fastened with a joint to a pin receiving portion of a shell part so that the casing part is pivotable about a certain pivot angle between an open position and a closed position. The two shell parts are each formed in one piece, so again only a few items are available.
The pin holder is advantageously at least partially made of a plastic material, in particular of polyphenylene oxide (PPO). Further, it is advantageous if the joint is designed as a film hinge.
The optical waveguide receiving portion may also consist of two individual shell parts, which can be assembled along the longitudinal center axis and firmly connected to the pin receiving portion. With such an arrangement, the greatest possible freedom of the optical fiber stub is ensured for the welding process, since the two shell parts can be completely removed for welding and fixed after welding to the pin receiving portion.
Further advantages are obtained when the optical waveguide receiving portion consists of two identical shell parts. Thus, a particularly efficient production of the shell parts is made possible.
The shell parts can have interlocking positioning means for accurately fitting assembly. Such positioning means, for example, in the form of protruding bolts or recesses or are simple pin-and-pin-hole combinations. This positioning ensures that the shell parts are simply and safely assembled in the correct position.
On the basis of figures, which represent only embodiments, the invention will be explained in more detail below. Show it:
<Tb> FIG. 1: <sep> an exploded view of a plug part according to the invention,
<Tb> FIG. 2: <sep> a pin receiving portion before mounting the optical fiber stub,
<Tb> FIG. 3: <sep> the pin receiving section according to FIG. 2 with assembled fiber optic stub,
<Tb> FIG. 4: <sep> the pin receiving portion of FIG. 3 before being connected to the optical fiber receiving portion, FIG.
<Tb> FIG. 5: <sep> the prefabricated plug part according to FIG. 1,
<Tb> FIG. 6: <sep> the plug part according to FIG. 5 during the welding operation,
<Tb> FIG. 7: <sep> the plug part according to FIG. 6 when removing a protective film,
<Tb> FIG. 8: <sep> the prefabricated plug part,
<Tb> FIG. 9: <sep> a cross section through the plug part according to FIG. 8,
<Tb> FIG. 10: <sep> the plug part according to FIG. 8 before being inserted into a plug housing, FIG.
<Tb> FIG. 11: <sep> a cross section through a pre-assembled connector.
Fig. 1 shows an exploded view of an inventive connector part 1 arranged on a longitudinal central axis 3. The plug part 1 consists of a pin 2, a pin holder 4, which comprises a pin receiving portion 5 and an optical waveguide receiving portion 6. The optical waveguide receiving section 6 has two casing parts 8, 8, which are each connected via a joint 9, 9 in the form of a film hinge to a head part 12. The head part 12 serves to connect the optical waveguide receiving section 6 to the pin receiving section 5 and is substantially sleeve-shaped. For this connection, the optical waveguide receiving portion 6 and the pin receiving portion 5 have locking means (not shown) which allow easy snap-fastening.
The head part 12 has a nose 13, which fits into a corresponding groove-shaped anti-rotation device 36 in the pin receiving section 5 and makes it impossible to rotate the optical waveguide receiving section 6 relative to the pin receiving section 5. The two shell parts 8, 8 each have a contact surface 11, 11 for receiving a respective adhesive layers 25, 25. The two adhesive layers 25, 25 are protected on one side by a protective film 26, 26. To simplify the precise positioning when closing the two shell parts 8, 8, these have at their ends cable side positioning means in the form of protruding bolts or recesses.
In Fig. 2, a pin receiving portion 5 is shown prior to assembly of the optical fiber stub 21. In this case, the pin 2 is already mounted in the pin receiving portion 5. This can be pressed in, glued or molded directly from the pin receiving portion 5. Other types of attachment are also conceivable. The pin receiving portion has parallel to its longitudinal axis on a groove-shaped anti-rotation device 36, which on the one hand serves to receive a nose of the optical waveguide receiving portion (not shown) and on the other hand ensures the aligned installation in a connector housing. The pin receiving portion 5 has a through bore, so that the optical waveguide of the optical fiber stub 21 can be pushed from the side facing away from the pin 2 by the pin receiving portion 5 into the pin 2.
In addition, this hole is widened on the side facing away from the plug pin 2, so that in addition to the optical waveguide and a first plastic sheath of the optical fiber stub 21 can be accommodated.
Fig. 3 shows the pin receiving portion 5 as shown in FIG. 2 with ready-made optical fiber stub 21. The optical fiber stub 21 is glued in the pin receiving portion 5 and the pin 2. In addition, it is already shortened to the correct length, the end 22 to be welded to the optical fiber stub 21 protrudes from the pin receiving portion 5.
4, the pin receiving portion 5 according to FIG. 3 is shown before connecting to the optical waveguide receiving portion 6. The jacket parts 8, 8 of the optical waveguide receiving section 6 are equipped with the adhesive layers 25, 25 in the form of a double-sided adhesive tape and the corresponding protective films 26, 26. The adhesive layer 25, 25 corresponds in size to the contact surface 11, 11 (see Fig. 1). The protective film 26, 26 is L-shaped and overlaps the adhesive layer laterally. Thus, a simple grasping the protective film 26, 26 is ensured even in non-optimal environmental conditions and the adhesive layer 25, 25 can be easily exposed.
Fig. 5 shows the pre-assembled connector part 1 according to FIGS. 1 and 4. The optical waveguide receiving portion is plugged with its head part 12 on the pin receiving portion 5 and secured by the locking means. The nose 13 of the head portion 12 is located in the groove-shaped anti-rotation 36 of the pin receiving portion 5. The optical fiber stub 21 protrudes through a bore of the head portion 12 so that the end to be welded 22 comes to lie in the region of the two shell parts 8, 8 of the optical waveguide receiving portion.
In Fig. 6, the plug part 1 according to FIG. 5wis shown during the welding operation. An optical fiber cable 7 is brought with a stripped optical fiber end 23 to be welded to the end 22 of the optical fiber stub 21 and is welded thereto. The two arrows L, L represent the arc for welding the two ends 22, 23 of the optical waveguide. The two joints 9, 9 allow pivoting of the two shell parts 8, 8 of the optical waveguide receiving portion in the illustrated open position, so that the end to be welded 22 of the optical fiber stub 21 and the optical fiber end 23 of the optical fiber cable 7 is freely accessible from all sides for the welding operation.
7, the plug part 1 according to FIG. 6 after the welding operation when removing the protective film 26 is shown. The optical fiber cable 7 is connected to the plug part 1 and the two ends 22, 23 of the optical waveguides are welded together. Before the two jacket parts 8, 8 are pivoted into their closed position, the protective film 26, 26 has to be removed per jacket part 8, 8 so that the two adhesive layers 25, 25 are exposed.
Fig. 8 shows the ready-made connector part 1. The two shell parts 8, 8 are in their closed position and are held together by the two adhesive layers 25, 25. The two joints 9, 9 are stretched. The optical fiber cable 7, the pin holder 4 and the pin 2 form a unit.
In Fig. 9 is a cross section through the ready-made connector part 1 shown in FIG. 8. The welded together end 22, 23 of the optical fiber cable 7 and the optical fiber stub 21 are embedded between the two shell parts 8, 8 and are completely enclosed by the adhesive layers 25, 25 and thus fixed. Also, the first plastic sheath of the optical waveguide cable 7 is enclosed by the two adhesive layers 26, 26, so that a first strain relief of the optical waveguide or the welding point is ensured.
In Fig. 10, the plug part 1 according to FIG. 8 is shown prior to insertion into a corresponding connector housing 14. The plug part 1 is inserted with its pin 2 ahead in the connector housing 14, where the plug part 1 is locked. To protect against excessive bending load of the optical waveguide cable 7, a kink protection grommet 39 is provided at the rear end of the plug housing 14.
Fig. 11 shows a cross section through a pre-assembled connector. The plug part 1 is inserted into the plug housing 14. Fingers of Einrastkrone 37 engage in the circumferential groove of the pin receiving portion 5 of the connector part 1. The latching crown 37 and thus the plug part 1 is against a force of a spring 38 movable in the connector housing 14 stored. In this case, the spring 38 is supported on Crimphals 34, which limits the connector housing at its rear end from. The anti-buckling 39 is attached to the crimping clamps 34 and prevents excessive bending load of the optical waveguide cable. 7
If the optical fiber cable additionally has a strain relief in the form of, for example aramid fibers or the like and another coat, the strain relief can be firmly connected to the crimping clamp 34 in the usual way with a crimping sleeve. The anti-buckling is formed in such a case accordingly, so that it reaches over the crimp barrel.
1. connector part (1) for an optical connector, with a connector pin (2) in which a longitudinal center axis (3) extending optical fiber stub (21) is held and with a sleeve-like pin holder (4) comprising a pin receiving portion (5) in which the plug pin is held and an optical waveguide receiving portion (6) at which the end of an optical fiber cable (7) or
an optical waveguide is tensile strength fixable, wherein the optical waveguide receiving portion (6) at least two interconnectable shell parts (8, 8) and the optical fiber stub is weldable with a particular cable side optical fiber end (23), wherein the end to be welded (22) of the optical fiber stub (21) in the region of the shell parts (8, 8), characterized in that at least one of the shell parts (8, 8) at least one preferably factory-applied adhesive layer (25, 25) for connecting the at least two shell parts (8, 8).
Second plug part (1) according to claim 1, characterized in that the adhesive layer (25, 25) each on a the adjacent shell part (8, 8) opposite the contact surface (11, 11) of the shell parts (8, 8) is arranged.
3. plug part (1) according to claim 1 or 2, characterized in that the adhesive layer (25, 25) before the processing of the plug part (1) by a protective film (26, 26) is covered.
4. plug part (1) according to one of claims 1 to 3, characterized in that the adhesive layer (25, 25) is so elastic that when compression and bonding of the two shell parts located between the two shell parts or between the two layers of adhesive ge Welded optical waveguide is completely enveloped by the adhesive layers.
5. plug part (1) according to one of claims 1 to 4, characterized in that the adhesive layer (25, 25) has a thickness between 80 [micro] m and 300 [micro] m, in particular between 100 [micro] m and 200 micro] m, preferably between 125 [micro] m and 150 [micro] m.
6. plug part (1) according to one of claims 1 to 5, characterized in that the adhesive layer (25, 25) consists of a double-sided adhesive tape.
7. plug part (1) according to claim 6, characterized in that the double-sided adhesive tape includes an adhesive of an acrylic polymer.
8. plug part (1) according to one of claims 1 to 7, characterized in that the optical waveguide receiving portion (6) has a head part (12) for connection to the pin receiving portion (5) and two shell parts (8, 8).
9. plug part (1) according to claim 8, characterized in that at least one casing part (8, 8) with a hinge (9, 9) on the head part (12) is fixed so that the casing part by a certain pivot angle between an open position and a closed position is pivotable.
10. plug part (1) according to one of claims 1 to 7, characterized in that the pin receiving portion (5) and the shell parts (8, 8) of the optical waveguide receiving portion (6) are integrally formed, wherein at least one shell part (8, 8) with a hinge (9, 9) on the pin receiving portion (5) is fixed so that the casing part is pivotable about a certain pivot angle between an open position and a closed position.
11. Plug part (1) according to one of claims 1 to 7, characterized in that the pin holder (4) consists of two shell parts, which along the central longitudinal axis (3) can be assembled and at least one shell part (8, 8) with a joint ( 9, 9) is attached to a shell part so that the shell part is pivotable about a certain pivot angle between an open position and a closed position.
12. Plug part (1) according to one of claims 9 to 11, characterized in that the pin holder (4) at least partially made of plastic material and that the joint (9, 9) is a living hinge.
13. Plug part (1) according to one of claims 1 to 7, characterized in that the optical waveguide receiving portion (6) consists of two shell parts (8, 8) along the longitudinal central axis (3) assembled and firmly connected to the pin receiving portion (5) are.
14. Plug part (1) according to claim 13, characterized in that the optical waveguide receiving portion (6) consists of two identical casing parts (8, 8).
15. Plug part (1) according to one of claims 1 to 14, characterized in that the casing parts (8, 8) have intermeshing positioning means for accurately fitting assembly.
CH00164/09A 2009-02-05 2009-02-05 Plug part for an optical plug-in connection. CH700369A1 (en)
CH00164/09A CH700369A1 (en) 2009-02-05 2009-02-05 Plug part for an optical plug-in connection.
BRPI1008670A BRPI1008670A2 (en) 2009-02-05 2010-02-04 connector for optical plug connection
US13/143,368 US8944701B2 (en) 2009-02-05 2010-02-04 Connector part for an optical plug-in connection
PCT/EP2010/051332 WO2010089336A1 (en) 2009-02-05 2010-02-04 Connector part for an optical plug-in connection
AU2010210189A AU2010210189B2 (en) 2009-02-05 2010-02-04 Connector part for an optical plug-in connection
JP2011548680A JP5666479B2 (en) 2009-02-05 2010-02-04 Connector for optical plug-in connection
EP10702151.1A EP2394191B1 (en) 2009-02-05 2010-02-04 Connector part for an optical plug-in connection
CH700369A1 true CH700369A1 (en) 2010-08-13
ID=41151893
US (1) US8944701B2 (en)
EP (1) EP2394191B1 (en)
JP (1) JP5666479B2 (en)
AU (1) AU2010210189B2 (en)
BR (1) BRPI1008670A2 (en)
CH (1) CH700369A1 (en)
WO (1) WO2010089336A1 (en)
JP3014250B2 (en) * 1993-08-11 2000-02-28 株式会社フジクラ Reinforced optical fiber coupler
JP2005250294A (en) * 2004-03-05 2005-09-15 Chugoku Electric Power Co Inc:The Member and method for reinforcing optical fiber connection part
2009-02-05 CH CH00164/09A patent/CH700369A1/en unknown
2010-02-04 EP EP10702151.1A patent/EP2394191B1/en active Active
2010-02-04 WO PCT/EP2010/051332 patent/WO2010089336A1/en active Application Filing
2010-02-04 US US13/143,368 patent/US8944701B2/en active Active
2010-02-04 BR BRPI1008670A patent/BRPI1008670A2/en not_active Application Discontinuation
2010-02-04 AU AU2010210189A patent/AU2010210189B2/en active Active
2010-02-04 JP JP2011548680A patent/JP5666479B2/en active Active
AU2010210189B2 (en) 2015-01-22
JP5666479B2 (en) 2015-02-12
BRPI1008670A2 (en) 2016-03-08
WO2010089336A1 (en) 2010-08-12
JP2012517033A (en) 2012-07-26
US20110268393A1 (en) 2011-11-03
AU2010210189A1 (en) 2011-08-04
EP2394191A1 (en) 2011-12-14
US8944701B2 (en) 2015-02-03
EP2394191B1 (en) 2017-12-13
ES2534898T3 (en) 2015-04-30 optical connector
CZ287602B6 (en) 2001-01-17 Subassembly of connector for connecting optical fibers
JP2001147345A (en) 2001-05-29 Optical connector having integrated housing