EP1137961A1 - Procede permettant de fixer un connecteur optique sur une plaque de montage, et connecteur et broche de fixation permettant de mettre en oeuvre ledit procede - Google Patents

Procede permettant de fixer un connecteur optique sur une plaque de montage, et connecteur et broche de fixation permettant de mettre en oeuvre ledit procede

Info

Publication number
EP1137961A1
EP1137961A1 EP99944222A EP99944222A EP1137961A1 EP 1137961 A1 EP1137961 A1 EP 1137961A1 EP 99944222 A EP99944222 A EP 99944222A EP 99944222 A EP99944222 A EP 99944222A EP 1137961 A1 EP1137961 A1 EP 1137961A1
Authority
EP
European Patent Office
Prior art keywords
fastening
pins
housing
connector
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99944222A
Other languages
German (de)
English (en)
Inventor
Thomas Schmalzigaug
Beat Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huber and Suhner AG
Original Assignee
Huber and Suhner AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huber and Suhner AG filed Critical Huber and Suhner AG
Publication of EP1137961A1 publication Critical patent/EP1137961A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards

Definitions

  • the present invention relates to the field of optical connector technology. It relates to a method for fastening an optical connector, which has a housing, on a mounting plate designed as a printed circuit board. It also relates to a connector and a mounting pin for use in such a method.
  • plug connectors for connecting various fiber optic cables, which are arranged fixedly on a mounting plate designed as a printed circuit board.
  • the mounting plate usually also carries electronic components that are intended for signal processing.
  • the connectors are reserved exclusively for connecting the cables. You yourself have no electrical or electronic connection to the mounting plate and the electronic circuits formed on it.
  • the plug connector consists of a hollow box-shaped housing or a hollow box-shaped holder, into which the actual socket parts for inserting optical plugs on both sides are inserted and held there by snapping frame parts.
  • two holding feet are provided on the underside of the housing in the region of two opposite edges, which are designed as parallel webs and each have a locking rib at their free end.
  • At least one relief slot is arranged between the holding feet. The housing can be snapped onto the mounting board with the holding feet by snapping it into the corresponding slots in the board with the holding feet. The relief slot allows a limited spreading of the holding feet without damaging the housing.
  • the holding feet can be molded onto the housing in a simple manner during manufacture, for example using the injection molding process, and thus the fastening means can be integrated into the housing.
  • the assembly board must be specially prepared for the assembly by inserting slots. Since the board usually only has holes for the mounting Name is provided by electronic components, this results in an additional and because of the slot shape special processing (e.g. punching or milling), which is expensive in terms of time and costs.
  • a largely backlash-free mounting of the housing on the mounting board requires that the position of the Locking ribs on the holding feet or the distance of the locking ribs to the bottom of the housing is precisely matched to the thickness of the mounting board.
  • mounting boards with different thicknesses are used in practice, a specially adapted housing has to be manufactured and stocked for each board thickness, what manufacturing and warehousing become more expensive
  • FIG. 8 to 11 A second form of such connectors is described in the aforementioned EP-B1-0 430 107.
  • the connectors are used for the optical connection of individual mounting plates to a rear, vertical mounting wall of a housing (so-called "backplane connector"). Both parts must be used of the connector to be attached to the mounting wall and on the mounting plates.
  • this document proposes, among other things, a floating mounting (Fig. 8 to 11), in which two setscrews are formed on the underside of the connector housing, with which the housing can be replaced by appropriate Punch holes in the mounting board and screwed with a nut from the other side.
  • a round intermediate washer with a central slot-shaped opening is used for the screw connection, which enables the threaded pins to be floatingly supported in one direction.
  • Larger mounting holes have to be drilled for the attachment of the connectors.
  • the assembly of the connectors is particularly unfavorable, because here the washer has to be inserted and a nut has to be screwed onto a comparatively small grub screw, which takes a considerable amount of time and requires only a relatively large amount of equipment automate PRESENTATION OF THE INVENTION
  • fastening pins are used for the fastening, which are designed as press-in pins or soldering pins or snap-in pins, that the fastening pins are pressed or soldered or snapped into the mounting plate, and that the fastening pins be connected to the housing of the optical connector.
  • the essence of the invention is to use press-fit, soldering or snap-in pins for fastening, which can also be fastened in a simple manner with existing means (by wave soldering or the like) when fitting the mounting plate or circuit board.
  • holes with a diameter and a grid spacing can be used for attaching the pins, as they must be used anyway for equipping the circuit board. It is also advantageous that if there is a change in the thickness of the mounting board, fastening pins of a different length may have to be used, but the connector itself can remain unchanged.
  • a first preferred embodiment of the method according to the invention is characterized in that fastening pins are used which are designed as soldering pins, that the fastening pins are first anchored to the housing of the optical connector, and that the connector with the anchored fastening pins is subsequently soldered into the mounting plate.
  • the connector is like an electronic component with an treated pins, which is inserted when the assembly board is fitted and then soldered.
  • a second preferred embodiment of the method according to the invention is characterized in that the fastening pins are first pressed or soldered or snapped into the mounting plate, and that the housing of the optical connector is then detachably connected to the fastening pins by plugging the housing onto the fastening pins is, wherein the fastening pins are preferably designed for a snap-in fastening, and the housing of the optical connector is connected in a snap-in manner, in which snap-in devices are provided on the housing of the optical connector, into which the fastening pins snap when plugged in.
  • soldering pins, press-in pins and snap-in pins can alternatively be used.
  • the pins are attached in connection with the assembly board assembly. The connector can then simply be snapped onto the fully assembled board later.
  • the connector can also be attached to the pressed-in or soldered-in or snapped-in mounting pins in that mounting holes are provided on the housing of the optical connector, that the optical connector is plugged over the mounting pins, and that the connector is then attached to the fastening pins are snapped onto the fastening pins.
  • a snap fastening is possible without corresponding snap devices having to be provided on the housing of the connector itself.
  • the connector according to the invention for the method according to the invention which has a housing, is characterized in that a fastening plate is molded or attached to the housing, and that in the fastening plate means are provided for releasably connecting the housing with the mounting pins.
  • a first preferred embodiment of the connector according to the invention is characterized in that the connecting means are designed as a means for releasably anchoring the fastening pins, in that the anchoring means each comprise a slot-shaped insertion opening in the fastening plate, to each of which a circular recess is concentrically provided on the top and bottom adjoins, the diameter of which is greater than the width of the insertion opening, and that a slot is arranged parallel to the insertion opening on both sides of the cutouts.
  • fastening pins designed as anchored solder pins can first be anchored by insertion and twisting, so that the housing with the anchored pins can then be inserted and soldered into the mounting board.
  • a second preferred embodiment of the connector according to the invention is characterized in that the connecting means are designed as a means for releasably latching the fastening pins, that the latching means each comprise three slots arranged parallel to one another in the fastening plate and separated from one another by two webs, and that between the Webs a snap opening is arranged.
  • This housing can be connected to the board by plugging onto pins fastened in the board.
  • the fastening pin according to the invention for a method according to the invention is characterized in that the fastening pin is formed at one end as a press-in pin or as a soldering pin or as a snap-in pin, and that it has means for releasable connection to the housing at the other end.
  • the fastening pin is to be anchored in the connector housing, according to a first preferred embodiment it is characterized in that the connecting means comprise two polygonal plates, in particular square plates, arranged perpendicular to the pin axis and parallel to one another, between which is arranged a round intermediate part concentric to the pin axis, the outer diameter of which is smaller than the extent of the polygonal plates transverse to the pin axis.
  • the connecting means comprise two polygonal plates, in particular square plates, arranged perpendicular to the pin axis and parallel to one another, between which is arranged a round intermediate part concentric to the pin axis, the outer diameter of which is smaller than the extent of the polygonal plates transverse to the pin axis.
  • the fastening pin is to be connected in a snap-in manner to the plug connector housing, it is characterized in that a round plate, a round intermediate piece and a conical cap are arranged as connection means in the pin axis one above the other and concentrically to the pin axis, the round intermediate piece being a smaller one Has outer diameter as the round plate and the conical cap.
  • a connector according to claim 10 can be snapped onto such a fastening pin.
  • Figure 1 shows a first preferred embodiment of a connector according to the invention with fastening pins anchored in the housing in the form of solder pins in a plan view from below (Fig. 1A) and in a side view (Fig. 1B);
  • FIG. 2 shows a second preferred embodiment of a connector according to the invention with snaps into the housing Fastening pins in the form of press-in or soldering pins in a top view from below (FIG. 2A) and in a side view (FIG. 2B);
  • FIG. 3 is a top view from below of an alternative embodiment to FIG. 2 with separated webs in the latching devices;
  • FIG. 5 shows an embodiment analogous to FIG. 4, in which press-in pins are used as fastening pins
  • Fig. 1 is in two partial views (Fig. 1A and 1 B) a first preferred embodiment of a connector according to the invention - for example for attachment to a printed circuit board designed as a plug-in - anchored in the housing in the form of solder pins in the form of solder pins in the top view of reproduced below (Fig. 1A) and in the side view (Fig. 1 B).
  • the connector 10 comprises a housing 11, which is preferably made of plastic, but can also be made of another material such as a metal.
  • the housing 11 encloses an insertion opening 12 into which an optical plug (not shown) can be inserted.
  • a resilient latching tongue 13 with a latching cam is arranged below the housing 11 in a manner known per se.
  • a flat, rectangular fastening plate 14 is molded (molded) on the underside, which serves to fasten the connector 10 on a (not shown) mounting plate or printed circuit board.
  • a metal mounting pin 16a-d is anchored in the mounting plate, which is designed as a soldering pin 20 at its lower end.
  • the fastening pins 16a-d have means at the other end for releasable anchoring in the housing 11 or the fastening plate 14.
  • anchoring means each comprise two square plates 17, 19 arranged perpendicular to the pin axis and parallel to one another, between which a round intermediate part 18 is arranged concentric to the pin axis, the outer diameter of which is smaller than the extension of the polygonal plates 17, 19 transverse to the pin axis.
  • Corresponding anchoring means in the fastening plate each comprise a slot-shaped insertion opening 21 in the fastening plate 14, to which a circular recess 22, whose diameter is larger than the width of the insertion opening 21, concentrically adjoins on the top and bottom sides A slot 23 is arranged on each side of the cutouts 22.
  • the pins 16a-d For mounting (anchoring) the fastening pins 16a-d in the fastening plate 14, the pins are pushed into the insertion opening 21 from the side with the round intermediate part 18 up to the stop.
  • the square plates 17, 19 are oriented with their sides parallel or perpendicular to the parallel side walls of the insertion opening 21.
  • the fastening pins 16a-d are then rotated through 45 ° about their pin axis. Since the diameter of the circular recesses 22 which accommodate the square plates 17, 19 is smaller than the diagonal of the square plates 17, 19, the rich the slots 23 lying side walls of the recesses 22 elastically pressed outwards by the edges of the square plates 17, 19, whereby the fastening pins 16a-d are clamped and anchored in the fastening plate 14.
  • the connector 10 with the fastening pins 16a-d anchored in this way can then be inserted into the mounting plate and soldered in a conventional manner.
  • the spacing and arrangement of the fastening pins 16a-d are preferably selected such that the holes provided for this purpose in the mounting plate fit into one of the customary hole patterns for printed circuit boards.
  • Other types of anchoring of the fastening pins 16a-d in the fastening plate 14 are also conceivable.
  • solderable metallized fastening pins made of plastic or the like can also be used.
  • FIG. 2 In a representation analogous to FIG. 1, another preferred exemplary embodiment of the invention is shown in FIG. 2.
  • the plug connector 24 has the same housing 11 with the insertion opening 12, the latching tongue 13 and the integrally formed fastening plate 14 with the centering pins 15a and 15b.
  • four fastening pins 25a-d are provided (in the same grid as in FIG. 1) for fastening the plug connector 24 on a mounting plate.
  • the attachment pins 25a-d differ in shape and function from the attachment pins 16a-d of FIG. 1.
  • the fastening pins 25a-d are first inserted into the mounting plate and fastened there.
  • fastening to the mounting plate can also be done by snapping in if the fastening pins are designed as snapping pins at their lower end.
  • latching means 14 are formed both on the fastening pins 25a-d and in the fastening plate.
  • the locking means in the fastening Supply plate 14 each comprise three slots arranged parallel to one another in the fastening plate 14 and separated from one another by two webs 32, 34
  • the webs 32, 34 are continuous and can be elastically deflected transversely to the longitudinal axis because of the adjacent slots 31, 33, 35.
  • a latching opening 33a Arranged between the webs 32, 34 is a latching opening 33a, which receives the free end of the corresponding fastening pin when the connector 24 is snapped on.
  • the webs 32, 34 preferably have a bulge adapted to the latch opening 33a in the region of the latch opening 33a.
  • a round plate 30, a round intermediate piece 29 and a conical cap 28 are arranged one above the other and concentric to the pin axis as latching means at the free end.
  • the round intermediate piece 29 has a smaller outer diameter than the round plate 30 and the conical cap 28.
  • the round plate 30 forms with its upper side for the snap-back webs 32, 34 a first stop. With its lower side, the round plate 30 forms a second stop (height stop) up to which the fastening pins 25a-d can be pressed or inserted into the mounting plate.
  • the plug connector 36 of FIG. 3 in turn has a housing 37 to which a fastening plate 37a is molded.
  • the mounting plate 37a also has a (round) centering pin 38 and square centering pins 39, 40, which serve to position the connector 36 on the mounting plate.
  • the latching devices 41a-d are designed with webs and slots similar to that in FIG. 2, with the difference that the webs are no longer continuous, but are separated into half webs 42-45 in the region of the latching opening 46. In this way, an improved elastic behavior when snapping on can be achieved.
  • FIG. 2B Another embodiment of the invention, which is shown in Figures 4 to 6, is particularly suitable for the assembly of backplane connectors.
  • the connector 47 is inserted with its housing through a corresponding mounting opening 48a in the backplane mounting plate 48.
  • Flanges 49 with fastening holes 50 are formed on the housing.
  • the plug connectors 47 are inserted over fastening pins 25 which, as already shown in FIG. 2B, are optionally designed as a press-in pin 26 or a soldering pin 27 and pressed into the mounting plate 48 (FIG. 5) or soldered in (FIG. 4) .
  • the fastening pins 25 have at their free end the same latching means as in FIG. 2, namely the conical cap 28, the round intermediate part 29 and the round plate 30.
  • the latching does not take place within the connector 47, but by means of a latching plate 51, which is subsequently snapped over the ends of the fastening pins 25 protruding from the fastening holes 50.
  • the structure of the latching plates 51 shown in FIG. 6 is comparable to the latching means in the fastening plate of FIG. 2A.
  • two elastically deflectable webs 52 and 54 separated by a slot 53 are used, between which the fastening pin 25 can be inserted in a snap-in manner.
  • the use of a separate snap-in plate 51 has the advantage that it can be made of a different material than the connector housing, so that the material can be optimized for the respective function in both cases.
  • FIGS. 4 to 6 also makes it possible to choose the mounting holes 50 with a significantly larger diameter than the round plates. As a result, a "floating" attachment of the connector 47 to the backplane Mounting plate 48 reached, which - especially when there are many parallel plug connections - the insertion enables or much easier.
  • the mounting pins 16a-d, 25 and 25a-d can be made of the same material as the soldering pins common in electronics. If the fastening pins are designed as soldering pins, good solderability must be provided in addition to sufficient mechanical strength. In contrast, the electrical properties are irrelevant because the pins only have a mechanical, but not an electrical function. For example, silvering or the like can be dispensed with.
  • Mounting plate (backplane) a mounting opening

Abstract

L'invention concerne un procédé qui permet de fixer un connecteur optique (24) pourvu d'un boîtier (11), de préférence en plastique, sur une plaque de montage ayant une configuration de carte à circuits imprimés. Afin d'obtenir un montage simple et souple, adapté à la technique des cartes à circuits imprimés, on utilise pour la fixation des broches de fixation (25a-d), se présentant comme des broches pressées (26) ou soudées (27) ou bien comme des broches à encliquetage. Le procédé consiste à introduire par pression, soudage ou encliquetage lesdites broches de fixation (25a-d) dans la plaque de montage et à les relier au boîtier (11) du connecteur optique (24).
EP99944222A 1998-12-09 1999-09-30 Procede permettant de fixer un connecteur optique sur une plaque de montage, et connecteur et broche de fixation permettant de mettre en oeuvre ledit procede Withdrawn EP1137961A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH244498 1998-12-09
CH244498 1998-12-09
PCT/CH1999/000465 WO2000034814A1 (fr) 1998-12-09 1999-09-30 Procede permettant de fixer un connecteur optique sur une plaque de montage, et connecteur et broche de fixation permettant de mettre en oeuvre ledit procede

Publications (1)

Publication Number Publication Date
EP1137961A1 true EP1137961A1 (fr) 2001-10-04

Family

ID=4233973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99944222A Withdrawn EP1137961A1 (fr) 1998-12-09 1999-09-30 Procede permettant de fixer un connecteur optique sur une plaque de montage, et connecteur et broche de fixation permettant de mettre en oeuvre ledit procede

Country Status (4)

Country Link
EP (1) EP1137961A1 (fr)
JP (1) JP2002532736A (fr)
CA (1) CA2354271A1 (fr)
WO (1) WO2000034814A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012231004A (ja) * 2011-04-26 2012-11-22 Honda Elesys Co Ltd 導通端子半田ストレス防止構造

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461537A (en) * 1981-12-24 1984-07-24 Molex Incorporated Fiber optic connector assembly
US5233677A (en) * 1992-02-27 1993-08-03 Hughes Aircraft Company Fiber optic package
US5214735A (en) * 1992-04-06 1993-05-25 Adc Telecommunications, Inc. Fiber optic connector retainer
US5245683A (en) * 1992-08-21 1993-09-14 Molex Incorporated Board mounted fiber optic connector
DE29708275U1 (de) * 1997-05-07 1997-07-17 Siemens Ag Vorrichtung zur Befestigung von Kupplungen für Stecker von Lichtwellenleiter-Kabeln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0034814A1 *

Also Published As

Publication number Publication date
JP2002532736A (ja) 2002-10-02
CA2354271A1 (fr) 2000-06-15
WO2000034814A1 (fr) 2000-06-15

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