WO1995002840A1 - Axial-locking optical connecting plug and connection assembly comprising same - Google Patents

Axial-locking optical connecting plug and connection assembly comprising same Download PDF

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Publication number
WO1995002840A1
WO1995002840A1 PCT/FR1994/000790 FR9400790W WO9502840A1 WO 1995002840 A1 WO1995002840 A1 WO 1995002840A1 FR 9400790 W FR9400790 W FR 9400790W WO 9502840 A1 WO9502840 A1 WO 9502840A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
connection
socket
face
housed
Prior art date
Application number
PCT/FR1994/000790
Other languages
French (fr)
Inventor
Maurice Rouhier
Jean-Louis Striebig
Original Assignee
Framatome Connectors International
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 Framatome Connectors International filed Critical Framatome Connectors International
Publication of WO1995002840A1 publication Critical patent/WO1995002840A1/en

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
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • 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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors
    • 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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
    • 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
    • G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3888—Protection from over-extension or over-compression
    • 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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors
    • 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
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means

Definitions

  • the present invention relates to an optical connection plug.
  • optical connection plugs of known type allow interconnection between two optical fibers using plugs and sockets assembled by screwing, in particular for field applications.
  • optical connection plugs allow the interconnection of several optical fibers between them and also are compatible with the implementation of electrical connections.
  • the present invention therefore relates to an optical connection plug making it possible to at least partially solve the aforementioned problem.
  • an optical connection plug characterized in that it comprises a plug body, a locking sleeve movable longitudinally relative to a longitudinal axis of the plug body, a front insulating body in which is housed at least a first fiber optic connection element and rear holding element for a cable comprising at least one optical fiber connected to said connection element. It advantageously comprises a housing located between the front central body and the rear retaining element so as to allow a movement of the optical fiber.
  • the fiber optic connection element advantageously comprises an end connector with elastic return.
  • the end connector can then have a sleeve coming to bear in front abutment by means of a first seal on a cylindrical element housed in the front insulating body.
  • the cylindrical element may have, on an external face, a second seal, which ensures excellent sealing of the entire end connector of the optical fiber.
  • the plug may also include a rear insulating body fixed to the front insulating body and carrying at least one tubular element disposed in said housing.
  • the tubular element serves in particular as a force recovery axis for the connection of a central conductor.
  • the plug may comprise a cylindrical wiring spacer made of electrically conductive material, at least partially housed in the plug body, which is also electrically conductive and electrically connected to it as well as a counter-piece for holding a braid of earth of the cable against a rear face of the spacer.
  • Said electrical connection between the wiring spacer and the plug body can be made by a spring element forming a crown. This ensures ground continuity between the cable ground braid on the one hand, and the plug body.
  • the invention also relates to a plug and socket connection assembly characterized in that it comprises a plug as defined above, as well as a socket having a socket body, an insulating central body in which is housed a second fiber optic connection element having a front face spaced from a front face of the socket body by a distance such that, when the front face of the plug body is presented in front of the front face of the socket body, it cannot come into mechanical contact with the front face of the second connection element whatever the relative angular position of the plug and the socket.
  • This avoids deteriorating the fiber optic contacts which are fragile, whatever the conditions of docking of the plug and the socket, which is favorable for an application in the field.
  • connection assembly comprises an electrical contact element ensuring electrical continuity between the plug body and the socket body when the plug and the socket are assembled. This gives mass continuity between the cable earth braid, the plug body and the base body.
  • FIG. 1A a longitudinal section of a sheet according to the invention carrying two enlarged boxes (FIG. 1B and 1C), FIG. 2, a longitudinal section of a base according to a first embodiment, and
  • a plug according to the invention has a plug body 2 having locking sockets 3, each of which has a locking lug 3 ', held on the plug body 2 by a retaining nut 4 and which can be unlocked by an unlocking sleeve 1.
  • This type of axial locking is known per se from French patent 1,201,817 issued on July 15, 1959 to Mr. Léon MOUTTET.
  • the rear part of the plug body 2 has a threaded part 2 ′ onto which a locking nut 5 is screwed preventing, in the position shown, the translation towards the rear of the unlocking sleeve 1, and allowing by Consequently, keeping the plug in the locked position in the base.
  • the locking nut 5 By unscrewing the locking nut 5, the possibility is released for the unlocking sleeve 1 to translate towards the rear of the plug, and therefore to bring back the locking lug 3 ′ of the locking spring sleeve 3, in the unlocked position.
  • a central insulating front body 6 carries electrical contacts 60 and / or one or more connection elements 23 for an optical fiber 28 of a cable 30.
  • These elements 23 may in particular be of the type known under the brand "OPTABALL" from the RADIALL company which have a coupling sphere also ensuring the protection of the optical fiber and sealing.
  • the cable 30 also has electrical conductors 29, and a central carrier 29 'which can be connected to a cylindrical piece 13, which is fixed by a screw 12 in a rear insulator 10 itself fixed by two self-tapping screws 11 in the body central insulator 6, the cylindrical part 13 serving as a force recovery element for fixing the central carrier 29 ′ can be made of different materials, for example steel or aramid fibers, in particular Kevlar (registered trademark).
  • a cylindrical spacer 14 the front part of which is housed around the rear insulator 10, has an annular groove 15 'in which is housed an annular spring 15 forming a crown of mass so as to electrically interconnect the cylindrical spacer 14 in conductive material and the plug body 2, also made of conductive material.
  • the spacer 14 has a rear part comprising a frustoconical rear face 52 against which is housed a ground braid 51 of the cable 30 held against the latter by a counter-cone 16, a washer 17 also pressing on the end of the braid 51, a pressure ring 18, a gland seal 19, an elastic pressure element 20, and finally, a pressure nut 21 having a front extension 21 'which is screwed around the threaded rear end 2' of the plug body 2, this thread 2 also being used for the locking nut 5.
  • a housing 55 located between the insulating central body 6, possibly the body 10, and the rear part 14 ′ of the cylindrical spacer allows a clearance for the optical fiber 28 which protrudes from the front end of the cable 30.
  • the base (fig. 2) has a base body 39 of conductive material, the front part 61 of which has a front face 65, flares outwardly in a crown.
  • An O-ring 32 is disposed in an annular groove 32 'formed at the rear of this ring 61 so as to allow mounting on a wall 67 shown in dotted lines, by means of a ring 38 mounted on the threaded external part 39' of the body base 39.
  • the base body 39 has an insulating central body 34 in which are formed one or more electrical connectors 68 and / or one or more optical connection elements 63 complementary to the element 23 of the plug, for example according to the "OPTABALL" brand. cited above.
  • the base body 34 is mounted by a nut 37 screwed onto a threaded external part of the rear part 62 of the base body 39.
  • An electrical contact element 71 disposed in an annular groove 72 internal to the base body allows 'ensure electrical continuity between the plug body and the base body 39.
  • the internal cylindrical contour of the base body 39 has an O-ring 33 disposed in an annular groove thereof. This also ensures a seal.
  • This annular groove is preferably located, as shown, further forward of the base body than the annular groove 71 'which carries the electrical contact element 71 which may be a spring element in the form of a crown.
  • the optical connection optical element 63 has a front cylindrical part ending in a front face 64 which is spaced by a distance 1 from the front face 65 of the base body 39. This distance 1 is chosen so as to allow docking of the socket plug at any angle without the front face 62 of the plug body 2 being able to come into mechanical contact with the end 64 of the connection element optics 63.
  • Figure 3 there is shown a variant of the base of Figure 2 which is symmetrical with respect to the axis shown in phantom in the figure and which allows the interconnection of two plugs of the type shown in Figure 1 , which allows in particular to equip long cables with two identical plugs without the user having to worry about which end of the cable he can connect.

Abstract

An optical connecting plug comprising a plug body (2), a locking socket (1) movable lengthwise relative to a longitudinal axis of the plug body, a front insulating body (6) containing at least one first fibre-optical connecting member (23) and a rear supporting member (14, 16, 17, 18, 19, 20) for a cable (30) comprising at least one optical fibre (28) connected to said connecting member (23). Said plug comprises a space (55) between the front central body (6) and the rear supporting member (14, 16, 17, 18, 19, 20) in which the optical fibre (28) can move.

Description

FICHE DE CONNEXTON OPTIQUE A VERROUILLAGE AXIAL ET ENSEMBLE DE CONNEXION LE COMPRENANT OPTICAL CONNECTION SHEET WITH AXIAL LOCK AND CONNECTION ASSEMBLY INCLUDING THE SAME
La présente invention a pour objet une fiche de connexion optique.The present invention relates to an optical connection plug.
En général, les fiches de connexion optiques de type connu permettent l'interconnexion entre deux fibres optiques à l'aide de fiches et d'embases assemblées par vissage, notamment pour des applications de terrain.In general, optical connection plugs of known type allow interconnection between two optical fibers using plugs and sockets assembled by screwing, in particular for field applications.
L'évolution des techniques vers des assemblages plus rapides, notamment dans les domaines des télécommunications ou de la télévision, en particulier la télévision à haute définition, imposent des systèmes robustes pouvant être verrouillés et déverrouillés de manière rapide et fiable. En outre, il est souhaitable que les fiches de connexion optiques permettent l'interconnexion de plusieurs fibres optiques entre elles et également soient compatibles avec la mise en oeuvre de connexions électriques.The evolution of techniques towards faster assemblies, in particular in the fields of telecommunications or television, in particular high-definition television, impose robust systems which can be locked and unlocked quickly and reliably. In addition, it is desirable that the optical connection plugs allow the interconnection of several optical fibers between them and also are compatible with the implementation of electrical connections.
La présente invention a alors pour objet une fiche de connexion optique permettant de résoudre au moins partiellement le problème précité.The present invention therefore relates to an optical connection plug making it possible to at least partially solve the aforementioned problem.
L'invention concerne dans ce but une fiche de connexion optique, caractérisée en ce qu'elle comporte un corps de fiche, une douille de verrouillage déplaçable longitudinalement par rapport à un axe longitudinal du corps de fiche, un corps isolant avant dans lequel est logé au moins un premier élément de connexion à fibre optique et élément de maintien arrière pour un câble comportant au moins une fibre optique reliée audit élément de connexion. Elle comporte avantageusement un logement situé entre le corps central avant et l'élément de maintien arrière de manière à permettre un débattement de la fibre optique.To this end, the invention relates to an optical connection plug, characterized in that it comprises a plug body, a locking sleeve movable longitudinally relative to a longitudinal axis of the plug body, a front insulating body in which is housed at least a first fiber optic connection element and rear holding element for a cable comprising at least one optical fiber connected to said connection element. It advantageously comprises a housing located between the front central body and the rear retaining element so as to allow a movement of the optical fiber.
L'élément de connexion à fibre optique comporte avantageusement un connecteur d'extrémité à rappel élastique. Le connecteur d'extrémité peut alors présenter un manchon venant porter en butée avant par l'intermédiaire d'un premier joint d'étanchéité sur un élément cylindrique logé dans le corps isolant avant. L'élément cylindrique peut présenter, sur une face externe, un deuxième joint d'étanchéité, ce qui assure une excellente étanchéité de l'ensemble du connecteur d'extrémité de la fibre optique. La fiche peut également comporter un corps isolant arrière fixé sur le corps isolant avant et portant au moins un élément tubulaire disposé dans ledit logement. L'élément tubulaire sert en particulier d'axe de reprise d'effort pour la connexion d'un conducteur central.The fiber optic connection element advantageously comprises an end connector with elastic return. The end connector can then have a sleeve coming to bear in front abutment by means of a first seal on a cylindrical element housed in the front insulating body. The cylindrical element may have, on an external face, a second seal, which ensures excellent sealing of the entire end connector of the optical fiber. The plug may also include a rear insulating body fixed to the front insulating body and carrying at least one tubular element disposed in said housing. The tubular element serves in particular as a force recovery axis for the connection of a central conductor.
La fiche peut comporter une entretoise cylindrique de câblage en matériau électriquement conducteur, au moins partiellement logée dans le corps de fiche, lequel est également électriquement conducteur et connecté électriquement à celui-ci ainsi qu'une contre-pièce de maintien d'une tresse de masse du câble contre une face arrière de l'entretoise. Ladite connexion électrique entre l'entretoise de câblage et le corps de fiche peut être réalisée par un élément ressort formant une couronne. Ceci permet d'assurer une continuité de masse entre la tresse de masse du câble d'une part, et le corps de fiche.The plug may comprise a cylindrical wiring spacer made of electrically conductive material, at least partially housed in the plug body, which is also electrically conductive and electrically connected to it as well as a counter-piece for holding a braid of earth of the cable against a rear face of the spacer. Said electrical connection between the wiring spacer and the plug body can be made by a spring element forming a crown. This ensures ground continuity between the cable ground braid on the one hand, and the plug body.
L'invention concerne également un ensemble de connexion à fiche et embase caractérisé en ce qu'il comporte une fiche telle que définie ci-dessus, ainsi qu'une embase présentant un corps d'embase, un corps central isolant dans lequel est logé un deuxième élément de connexion à fibre optique présentant une face avant espacée d'une face avant du corps d'embase d'une distance telle que, lorsque la face avant du corps de fiche est présentée devant la face avant du corps d'embase, elle ne peut rentrer en contact mécanique avec la face avant du deuxième élément de connexion quelle que soit la position angulaire relative de la fiche et de l'embase. Ceci évite de détériorer les contacts à fibre optique qui sont fragiles, quelles que soient les conditions d'accostage de la fiche et de l'embase, ce qui est favorable à une application sur le terrain.The invention also relates to a plug and socket connection assembly characterized in that it comprises a plug as defined above, as well as a socket having a socket body, an insulating central body in which is housed a second fiber optic connection element having a front face spaced from a front face of the socket body by a distance such that, when the front face of the plug body is presented in front of the front face of the socket body, it cannot come into mechanical contact with the front face of the second connection element whatever the relative angular position of the plug and the socket. This avoids deteriorating the fiber optic contacts which are fragile, whatever the conditions of docking of the plug and the socket, which is favorable for an application in the field.
Selon un mode de réalisation préféré, l'ensemble de connexion comporte un élément de contact électrique assurant la continuité électrique entre le corps de fiche et le corps d'embase lorsque la fiche et l'embase sont assemblées. On obtient ainsi une continuité de masse entre la tresse de masse du câble, le corps de fiche et le corps d'embase.According to a preferred embodiment, the connection assembly comprises an electrical contact element ensuring electrical continuity between the plug body and the socket body when the plug and the socket are assembled. This gives mass continuity between the cable earth braid, the plug body and the base body.
D'autres caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description qui va suivre, donnée à titre d'exemple non limitatif, en liaison avec les dessins qui représentent :Other characteristics and advantages of the invention will appear better on reading the description which follows, given by way of nonlimiting example, in conjunction with the drawings which represent:
- la figure 1A, une coupe longitudinale d'une fiche selon l'invention portant deux encadrés agrandis (Fig. 1B et 1C), - la figure 2, une coupe longitudinale d'une embase selon un premier mode de réalisation, etFIG. 1A, a longitudinal section of a sheet according to the invention carrying two enlarged boxes (FIG. 1B and 1C), FIG. 2, a longitudinal section of a base according to a first embodiment, and
- la figure 3, une coupe longitudinale d'une embase du type dit tête-bêche permettant de recevoir et d'interconnecter deux fiches de même type.- Figure 3, a longitudinal section of a base of the so-called head-to-tail type for receiving and interconnecting two plugs of the same type.
Selon la figure 1, une fiche selon l'invention présente un corps de fiche 2 présentant des douilles de verrouillage 3, dont chacune présente un ergot de verrouillage 3', maintenues sur le corps de fiche 2 par un écrou de retenue 4 et qui peuvent être déverrouillées par une douille de déverrouillage 1. Ce type de verrouillage axial est connu en soi du brevet français 1 201 817 délivré le 15 juillet 1959 à Monsieur Léon MOUTTET.According to Figure 1, a plug according to the invention has a plug body 2 having locking sockets 3, each of which has a locking lug 3 ', held on the plug body 2 by a retaining nut 4 and which can be unlocked by an unlocking sleeve 1. This type of axial locking is known per se from French patent 1,201,817 issued on July 15, 1959 to Mr. Léon MOUTTET.
On remarquera également que la partie arrière du corps de fiche 2, présente une partie filetée 2' sur laquelle est vissé un écrou de verrouillage 5 empêchant, dans la position représentée, la translation vers l'arrière de douille de déverrouillage 1, et permettant par conséquent un maintien de la fiche en position verrouillée dans l'embase. Par dévissage de l'écrou de verrouillage 5, on libère la possibilité pour la douille de déverrouillage 1 de se translater vers l'arrière de la fiche, et donc de ramener l'ergot de verrouillage 3' de la douille ressort de verrouillage 3, en position de déverrouillage.It will also be noted that the rear part of the plug body 2 has a threaded part 2 ′ onto which a locking nut 5 is screwed preventing, in the position shown, the translation towards the rear of the unlocking sleeve 1, and allowing by Consequently, keeping the plug in the locked position in the base. By unscrewing the locking nut 5, the possibility is released for the unlocking sleeve 1 to translate towards the rear of the plug, and therefore to bring back the locking lug 3 ′ of the locking spring sleeve 3, in the unlocked position.
Un corps central isolant avant 6 porte des contacts électriques 60 et/ou un ou plusieurs éléments de connexion 23 pour une fibre optique 28 d'un câble 30. Ces éléments 23 peuvent être en particulier du type connu sous la marque "OPTABALL" de la société RADIALL qui présentent une sphère de couplage assurant également la protection de la fibre optique et l'étanchéité. Le câble 30 présente également des conducteurs électriques 29, et un porteur central 29' qui peut être raccordé à une pièce cylindrique 13, laquelle est fixée par une vis 12 dans un isolant arrière 10 lui-même fixé par deux vis autotaraudeuses 11 dans le corps central isolant 6, la pièce cylindrique 13 servant d'élément de reprise d'effort pour la fixation du porteur central 29' peut être réalisé en différents matériaux, par exemple en acier ou en fibres aramides, notamment en Kevlar (marque déposée).A central insulating front body 6 carries electrical contacts 60 and / or one or more connection elements 23 for an optical fiber 28 of a cable 30. These elements 23 may in particular be of the type known under the brand "OPTABALL" from the RADIALL company which have a coupling sphere also ensuring the protection of the optical fiber and sealing. The cable 30 also has electrical conductors 29, and a central carrier 29 'which can be connected to a cylindrical piece 13, which is fixed by a screw 12 in a rear insulator 10 itself fixed by two self-tapping screws 11 in the body central insulator 6, the cylindrical part 13 serving as a force recovery element for fixing the central carrier 29 ′ can be made of different materials, for example steel or aramid fibers, in particular Kevlar (registered trademark).
Une entretoise cylindrique 14, dont la partie avant vient se loger autour de l'isolant arrière 10, présente une gorge annulaire 15' dans laquelle est logé un ressort 15 annulaire formant une couronne de masse de manière à interconnecter électriquement l'entretoise cylindrique 14 en matériau conducteur et le corps de fiche 2, également en matériau conducteur. L'entretoise 14 présente une partie arrière comportant une face arrière tronconique 52 contre laquelle vient se loger une tresse de masse 51 du câble 30 maintenue contre celui-ci par un contre-cône 16, une rondelle 17 s'appuyant également sur l'extrémité de la tresse 51, une bague de pression 18, un joint de presse-étoupe 19, un élément de pression élastique 20, et enfin, un écrou de pression 21 présentant un prolongement avant 21' qui est vissé autour de l'extrémité arrière filetée 2' du corps de fiche 2, ce filetage 2 étant également mis en oeuvre pour l'écrou de verrouillage 5. Un logement 55 situé entre le corps central isolant 6, éventuellement le corps 10, et la partie arrière 14' de l'entretoise cylindrique permet un débattement pour la fibre optique 28 qui dépasse de l'extrémité avant du câble 30. En particulier, pour un élément à fibre optique 23 présentant un ressort de rappel 9, le recul de cet élément 23 lors de l'enfichage de la fiche sur l'embase se fait sans dommage grâce à l'existence du logement 55 qui permet un débattement radial de la fibre optique 28. En outre, ce logement 55 permet de disposer l'élément cylindrique 13 en vue de la connexion d'un connecteur central ainsi qu'il a été montré ci-dessus.A cylindrical spacer 14, the front part of which is housed around the rear insulator 10, has an annular groove 15 'in which is housed an annular spring 15 forming a crown of mass so as to electrically interconnect the cylindrical spacer 14 in conductive material and the plug body 2, also made of conductive material. The spacer 14 has a rear part comprising a frustoconical rear face 52 against which is housed a ground braid 51 of the cable 30 held against the latter by a counter-cone 16, a washer 17 also pressing on the end of the braid 51, a pressure ring 18, a gland seal 19, an elastic pressure element 20, and finally, a pressure nut 21 having a front extension 21 'which is screwed around the threaded rear end 2' of the plug body 2, this thread 2 also being used for the locking nut 5. A housing 55 located between the insulating central body 6, possibly the body 10, and the rear part 14 ′ of the cylindrical spacer allows a clearance for the optical fiber 28 which protrudes from the front end of the cable 30. In particular, for an element to optical fiber 23 having a return spring 9, the recoil of this element 23 when plugging the plug on the base is done without damage thanks to the existence of the housing 55 which allows a radial deflection of the optical fiber 28 In addition, this accommodation 55 allows t to arrange the cylindrical element 13 for the connection of a central connector as has been shown above.
L'embase (fig.2) présente un corps d'embase 39 en matériau conducteur dont la partie avant 61, qui présente une face avant 65, s'évase en couronne vers l'extérieur. Un joint torique 32 est disposé dans une gorge annulaire 32' ménagée à l'arrière de cette couronne 61 de manière à permettre un montage sur une paroi 67 représentée en pointillés, grâce à une bague 38 montée sur la partie externe filetée 39' du corps d'embase 39.The base (fig. 2) has a base body 39 of conductive material, the front part 61 of which has a front face 65, flares outwardly in a crown. An O-ring 32 is disposed in an annular groove 32 'formed at the rear of this ring 61 so as to allow mounting on a wall 67 shown in dotted lines, by means of a ring 38 mounted on the threaded external part 39' of the body base 39.
Le corps d'embase 39 présente un corps central isolant 34 dans lequel sont ménagés un ou plusieurs connecteurs électriques 68 et/ou un ou plusieurs éléments de connexion optiques 63 complémentaires de l'élément 23 de la fiche par exemple selon la marque "OPTABALL" précitée. Le corps d'embase 34 est monté par un écrou 37 vissé sur une partie externe filetée de la partie arrière 62 du corps d'embase 39. Un élément de contact électrique 71 disposé dans une gorge annulaire 72 interne du corps d'embase permet d'assurer une continuité électrique entre le corps de fiche et le corps d'embase 39. En outre, le contour cylindrique interne du corps d'embase 39 présente un joint torique 33 disposé dans une gorge annulaire de celui-ci. Ceci permet en outre d'assurer une étanchéité. Cette gorge annulaire est de préférence située, comme représenté, plus à l'avant du corps d'embase que la gorge annulaire 71' qui porte l'élément de contact électrique 71 lequel peut être un élément formant ressort en forme de couronne. L'élément optique de connexion optique 63 présente une partie cylindrique avant se terminant par une face avant 64 qui est espacée d'une distance 1 de la face avant 65 du corps d'embase 39. Cette distance 1 est choisie de manière à permettre un accostage de la fiche d'embase selon n'importe quel angle sans que la face avant 62 du corps de fiche 2 puisse entrer en contact mécanique avec l'extrémité 64 de l'élément de connexion optique 63.The base body 39 has an insulating central body 34 in which are formed one or more electrical connectors 68 and / or one or more optical connection elements 63 complementary to the element 23 of the plug, for example according to the "OPTABALL" brand. cited above. The base body 34 is mounted by a nut 37 screwed onto a threaded external part of the rear part 62 of the base body 39. An electrical contact element 71 disposed in an annular groove 72 internal to the base body allows 'ensure electrical continuity between the plug body and the base body 39. In addition, the internal cylindrical contour of the base body 39 has an O-ring 33 disposed in an annular groove thereof. This also ensures a seal. This annular groove is preferably located, as shown, further forward of the base body than the annular groove 71 'which carries the electrical contact element 71 which may be a spring element in the form of a crown. The optical connection optical element 63 has a front cylindrical part ending in a front face 64 which is spaced by a distance 1 from the front face 65 of the base body 39. This distance 1 is chosen so as to allow docking of the socket plug at any angle without the front face 62 of the plug body 2 being able to come into mechanical contact with the end 64 of the connection element optics 63.
A la figure 3, on a représenté une variante de l'embase de la figure 2 laquelle est symétrique par rapport à l'axe représenté en trait mixte sur la figure et qui permet l'interconnexion de deux fiches du type représenté sur la figure 1, ce qui permet en particulier d'équiper des câbles de grande longueur avec deux fiches identiques sans que l'utilisateur ait à se préoccuper de quelle extrémité du câble il peut connecter. In Figure 3, there is shown a variant of the base of Figure 2 which is symmetrical with respect to the axis shown in phantom in the figure and which allows the interconnection of two plugs of the type shown in Figure 1 , which allows in particular to equip long cables with two identical plugs without the user having to worry about which end of the cable he can connect.

Claims

REVENDICATIONS
1. Fiche de connexion optique, caractérisée en ce qu'elle comporte un corps de fiche (2), une douille de verrouillage (1) déplaçable longitudinalement par rapport à un axe longitudinal du corps de fiche, un corps isolant avant (6) dans lequel est logé au moins un premier élément de connexion (23) à fibre optique et un élément de maintien arrière (14, 16, 17, 18, 19, 20) pour un câble (30) comportant au moins une fibre optique (28) reliée audit élément de connexion (23).1. Optical connection plug, characterized in that it comprises a plug body (2), a locking sleeve (1) movable longitudinally relative to a longitudinal axis of the plug body, a front insulating body (6) in which is housed at least a first fiber optic connection element (23) and a rear holding element (14, 16, 17, 18, 19, 20) for a cable (30) comprising at least one optical fiber (28) connected to said connection element (23).
2. Fiche selon la revendication 1, caractérisée en ce qu'elle comporte un logement (55) situé entre le corps central avant (6) et l'élément de maintien arrière (14, 16, 17, 18, 19, 20) de manière à permettre un débattement de la fibre optique (28).2. Sheet according to claim 1, characterized in that it comprises a housing (55) located between the front central body (6) and the rear holding element (14, 16, 17, 18, 19, 20) of so as to allow movement of the optical fiber (28).
3. Fiche selon une des revendications 1 ou 2, caractérisée en ce que ledit élément de connexion à fibre optique comporte un connecteur d'extrémité (23) à rappel élastique (9).3. Plug according to one of claims 1 or 2, characterized in that said fiber optic connection element comprises an end connector (23) with elastic return (9).
4. Fiche selon la revendication 3, caractérisée en ce que le connecteur d'extrémité (2) présente un manchon (7) venant porter en butée avant par l'intermédiaire d'un premier joint d'étanchéité (7') sur un élément cylindrique (7) logé dans le corps isolant avant (6).4. Sheet according to claim 3, characterized in that the end connector (2) has a sleeve (7) coming to bear in front abutment by means of a first seal (7 ') on an element cylindrical (7) housed in the front insulating body (6).
5. Fiche selon la revendication 4, caractérisée en ce que l'élément cylindrique (7) présente, sur une face externe (8') un deuxième joint d'étanchéité (8).5. Sheet according to claim 4, characterized in that the cylindrical element (7) has, on an external face (8 ') a second seal (8).
6. Fiche selon une des revendications précédentes, caractérisée en ce qu'elle comporte un corps isolant arrière (10) fixé sur le corps isolant avant (6) et portant au moins un élément tubulaire (13) disposé dans ledit logement (55).6. Sheet according to one of the preceding claims, characterized in that it comprises a rear insulating body (10) fixed on the insulating body front (6) and carrying at least one tubular element (13) disposed in said housing (55).
7. Fiche selon une des revendications précédentes, caractérisée en ce qu'elle comporte une entretoise cylindrique (14) de câblage en matériau électriquement conducteur, au moins partiellement logée dans le corps de fiche (2), lequel est également électriquement conducteur et connecté électriquement à celui- ci, et une contre-pièce -(16) de maintien d'une tresse de masse (51) du câble (30) contre une face arrière (52) de l'entretoise (14).7. Plug according to one of the preceding claims, characterized in that it comprises a cylindrical spacer (14) for wiring in electrically conductive material, at least partially housed in the plug body (2), which is also electrically conductive and electrically connected. to this, and a counterpart - (16) for holding a ground braid (51) of the cable (30) against a rear face (52) of the spacer (14).
8. Fiche selon la revendication 7, caractérisée en ce que ladite connexion électrique entre l'entretoise de câblage (14) et le corps de fiche (2) est réalisée par un élément ressort (15) formant une couronne.8. Plug according to claim 7, characterized in that said electrical connection between the wiring spacer (14) and the plug body (2) is formed by a spring element (15) forming a crown.
9. Ensemble de connexion à fiche et embase, caractérisé en ce qu'il comporte une fiche selon une des revendications précédentes, ainsi qu'une embase présentant un corps d'embase (39), un corps central isolant (34) dans lequel est logé une deuxième élément de connexion à) fibre optique (63) présentant une face avant (64) espacée d'une face avant (65) du corps d'embase (39) d'une distance (1) telle que, lorsque la face avant (62) du corps de fiche (2) est présentée devant la face avant (65) du corps d'embase (39), elle ne peut entrer en contact mécanique avec la face avant (64) du deuxième élément de connexion (63) quelle que soit la position angulaire relative de la fiche et de l'embase.9. Connection assembly with plug and socket, characterized in that it comprises a plug according to one of the preceding claims, as well as a socket having a socket body (39), a central insulating body (34) in which is housed a second connection element to) optical fiber (63) having a front face (64) spaced from a front face (65) of the base body (39) by a distance (1) such that, when the face front (62) of the plug body (2) is presented in front of the front face (65) of the base body (39), it cannot come into mechanical contact with the front face (64) of the second connection element (63 ) whatever the relative angular position of the plug and the socket.
10. Ensemble de connexion selon la revendication 9, caractérisé en ce qu'il comporte un élément de contact électrique (71) assurant la continuité électrique entre le corps de fiche (2) et le corps d'embase (39) lorsque la fiche et l'embase sont assemblées. 10. Connection assembly according to claim 9, characterized in that it comprises an electrical contact element (71) ensuring electrical continuity between the plug body (2) and the base body (39) when the plug and the base are assembled.
PCT/FR1994/000790 1993-07-12 1994-06-29 Axial-locking optical connecting plug and connection assembly comprising same WO1995002840A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9308578A FR2707765B1 (en) 1993-07-12 1993-07-12 Axial locking optical connection plug and connection assembly comprising it.
FR93/08578 1993-07-12

Publications (1)

Publication Number Publication Date
WO1995002840A1 true WO1995002840A1 (en) 1995-01-26

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Application Number Title Priority Date Filing Date
PCT/FR1994/000790 WO1995002840A1 (en) 1993-07-12 1994-06-29 Axial-locking optical connecting plug and connection assembly comprising same

Country Status (2)

Country Link
FR (1) FR2707765B1 (en)
WO (1) WO1995002840A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283642B1 (en) * 1999-10-08 2001-09-04 Visteon Global Technologies, Inc. Fiber optic connector
DE10044790C1 (en) * 2000-09-11 2002-04-04 Contact Gmbh Insulating body for a connector for the transmission of optical and electrical signals
US20130343707A1 (en) * 2012-06-26 2013-12-26 General Cable Technologies Corporation Cable and connector adapter assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1201817A (en) * 1957-08-27 1960-01-06 Electrical contact plug
GB2050714A (en) * 1979-05-21 1981-01-07 Breeze Illinois Inc Connector assembly for a cable
DE3112078A1 (en) * 1981-03-27 1982-10-07 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Hybrid plug connection for optical and electrical conductors
EP0073023A2 (en) * 1981-08-26 1983-03-02 LES CABLES DE LYON Société anonyme dite: Connection apparatus for cables comprising optical fibres and metallic conductors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1201817A (en) * 1957-08-27 1960-01-06 Electrical contact plug
GB2050714A (en) * 1979-05-21 1981-01-07 Breeze Illinois Inc Connector assembly for a cable
DE3112078A1 (en) * 1981-03-27 1982-10-07 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Hybrid plug connection for optical and electrical conductors
EP0073023A2 (en) * 1981-08-26 1983-03-02 LES CABLES DE LYON Société anonyme dite: Connection apparatus for cables comprising optical fibres and metallic conductors

Also Published As

Publication number Publication date
FR2707765A1 (en) 1995-01-20
FR2707765B1 (en) 1995-09-15

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