EP0479684B1 - Shielded, sealed and electrically insulated electrical connector - Google Patents

Shielded, sealed and electrically insulated electrical connector Download PDF

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Publication number
EP0479684B1
EP0479684B1 EP91402658A EP91402658A EP0479684B1 EP 0479684 B1 EP0479684 B1 EP 0479684B1 EP 91402658 A EP91402658 A EP 91402658A EP 91402658 A EP91402658 A EP 91402658A EP 0479684 B1 EP0479684 B1 EP 0479684B1
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EP
European Patent Office
Prior art keywords
plug body
plug
connector according
electrical connector
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP91402658A
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German (de)
French (fr)
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EP0479684A1 (en
Inventor
Hervé Bricaud
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ITT Composants et Instruments SA
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ITT Composants et Instruments SA
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Publication of EP0479684A1 publication Critical patent/EP0479684A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/625—Casing or ring with bayonet engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521—Connection to outer conductor by action of a nut

Definitions

  • the present invention relates to an electrical connector, in particular of the cylindrical type with plug and socket, according to the preamble of claim 1.
  • the object of the invention is in particular to propose a shielded, waterproof connector structure, electrically isolated from the outside to protect its user and which allows electrical wiring and easy repairs.
  • the invention provides an electrical connector of the type comprising a plug and a complementary base and in which the plug comprises a metal plug body which receives a plug insulating block, the through cells of which receive electrical contact elements, and a bayonet type coupling nut rotatably mounted on the front end of the plug body, characterized in that the rear end of the plug body comprises a hollow metal plug body extension which delimits a rear wiring chamber and of which the rear free end edge tightens the shielding braid of the electric cable to be connected against the front face opposite a clamping ring, and in that it comprises an insulating external clamping sleeve, the front free end is screwed onto the rear part of the plug body and the rear free end of which has an internal radial shoulder which cooperates with the rear face against the clamping ring to cause the shielding braid to be tightened by screwing the clamping sleeve onto the plug body.
  • FIG. 1 of which is an axial section view of an electrical connector in accordance with the teachings. of the invention and of which Figures 2 and 3 illustrate two methods of isolating the base.
  • FIG. 1 an electrical connector 10 consisting of a female connector element, or plug, 12 and a male connector element, or socket 14.
  • the two elements 12 and 14 are shown in the coupled position.
  • the plug 12 comprises a metallic plug body 16 inside which is insulated a block of insulating material 18.
  • the insulating block 18 comprises through cells 20 each of which receives an electrical contact element 22 which is introduced axially into the cell from the rear face 24 of the insulating block and in which it is fitted elastically.
  • the electrical contact elements 22 of the plug are male contact elements which cooperate with complementary female contact elements 23 arranged in the insulating block of the base.
  • the structure of the insulating blocks is perfectly symmetrical and makes it possible to reverse the arrangement of the male and female electrical contacts with respect to the embodiment illustrated in the figure, the concept of element of female connector or plug being to be understood independently of the type of electrical contact element which it receives.
  • the front end part 26 of the plug body is equipped with a coupling nut metallic bayonet 28.
  • the axial retention of the nut 28 and the electrical continuity between the nut 28 and the plug body 16 are ensured by means of a spring 30 of known structure shown diagrammatically.
  • the rear part 32 of the plug body 16 has an internal thread into which the free threaded front end 34 of a plug body extension 36 is screwed.
  • the extension 36 is a metallic element in the form of a hollow socket, the internal bore 38 of which delimits an internal wiring chamber 40 intended to receive the wires to be connected to the elements 22 of a screened electric cable of cylindrical section with a braid of peripheral screening (not shown).
  • the free rear end edge 42 of the extension 36 has a hollow frustoconical profile section which is designed to cooperate with the front face of complementary profile 44 of a clamping ring 46 made of insulating material.
  • a bi-conical metal ferrule 48 is interposed between the end 42 and the face 44.
  • the ferrule is designed to receive the end of the metal braid for shielding the cable so as to ensure the tightening of the latter between the end 42 and the corresponding face 50 of the ferrule.
  • the sleeve 52 has an internal bore 54 in which the cylindrical body of the extension 36 is received.
  • the front end of the bore 54 has an internal thread 56 which is screwed onto a corresponding external thread formed in the external surface of the rear part 32 of the plug body 16.
  • the bore 54 is delimited axially towards the rear by an internal radial shoulder 58 whose internal radial face 60 cooperates with the radial face opposite 62 of the clamping ring 46, with the interposition of a washer 64.
  • the clamping ring 46 is made of elastomeric insulating material and is extended axially towards the rear by a "wire-passing" guide tube 66 which passes through the shoulder 58 by an internal bore 68 of the latter to extend outwards. of the sleeve 52 towards the rear.
  • the guide tube 66 is provided to cooperate with the outer wall of the sheath of the cable to be connected.
  • the insulating clamping sleeve 52 extends axially forwards beyond the thread 56 by an annular portion 70 which covers the external surface of the plug body 16.
  • a sealing ring 72 mounted in a groove 74 in the plug body cooperates with the internal cylindrical surface of the extension 70.
  • extension 70 is provided to cooperate with a corresponding annular extension 76 which extends axially towards the rear and extends a coating 78 of insulating material which covers the nut 28.
  • annular portions 76 and 70 overlap axially in all the relative positions of the coupling nut 28 relative to the plug body 16 so as to ensure continuity of the external electrical insulation of the plug from the free front edge 82 of the nut to the insulating guide tube 66.
  • the base 14 also includes a metal base body 84 and an insulating block 86.
  • the front end portions 26 and 88 of the plug body 16 and base 84 penetrate into each other in the coupled position and a seal 90 is interposed between these two portions.
  • the front edge 85 of the base body 84 is extended axially so as to come into axial mechanical abutment against the face opposite 89 of the 'external radial shoulder 91 of the plug body.
  • This mechanical stop has the effect of improving electrical ground continuity and also of avoiding excessive crushing of the seal 90 during coupling.
  • a seal is also arranged between the insulating block 86 and the base body 84, just as a seal 17 is arranged between the insulating block 18 and the plug body 16.
  • Sealing is also ensured between the electrical contact elements and their cells due to the elasticity of the insulating material of the insulating blocks. According to a variant not shown, it was possible to arrange a sealing ring around each contact which cooperates with the bore of the corresponding socket.
  • FIG. 2 illustrates a first embodiment of the insulation of the base body 84.
  • a nut made of insulating material 92 is screwed onto the body 84. It has an axial annular extension 94 which extends axially forward and overlaps the insulating coating 78 of the locking nut 28.
  • the mounting nut 92 of the base is metallic. It is covered by the rear skirt 96 with an insulation nut 98 which is also screwed onto the base body 84.
  • the insulation nut 98 also has an annular extension 90 as in the case of FIG. 2.
  • the front face of the panel 100 which receives the base can also be covered with an insulating material.
  • each of the two connector elements can be fitted with a closure plug whose body is metallic and whose outer wall is coated with insulating material.
  • connection of the plug on the cable with the presence of the wiring chamber 40 makes it possible to easily repair and / or replace a contact element 22 by unscrewing the extension 36 and this even in the event of very high density electrical contact elements. Unscrewing the extension can be facilitated by an external gripping area by speckled example.
  • the extension 36 can be of very small size axially to form a very short wiring chamber and, in the latter case, be produced in one piece with the plug body 16.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

La présente invention concerne un connecteur électrique, notamment du type cylindrique à fiche et embase, selon le préambule de la revendication 1.The present invention relates to an electrical connector, in particular of the cylindrical type with plug and socket, according to the preamble of claim 1.

L'invention a notamment pour but de proposer une structure de connecteur blindé, étanche, isolé électriquement à l'extérieur pour protéger son utilisateur et qui permet un câblage électrique et des réparations aisés.The object of the invention is in particular to propose a shielded, waterproof connector structure, electrically isolated from the outside to protect its user and which allows electrical wiring and easy repairs.

A cet effet l'invention propose un connecteur électrique du type comportant une fiche et une embase complémentaires et dans lequel la fiche comporte un corps de fiche métallique qui reçoit un bloc isolant de fiche dont les alvéoles débouchants reçoivent des éléments de contact électrique, et un écrou d'accouplement du type à baïonnette monté tournant sur l'extrémité avant du corps de fiche, caractérisé en ce que l'extrémité arrière du corps de fiche comporte un prolongateur de corps de fiche métallique creux qui délimite une chambre arrière de câblage et dont le bord d'extrémité libre arrière serre la tresse de blindage du câble électrique à raccorder contre la face avant en vis-à-vis d'une bague de serrage, et en ce qu'il comporte un manchon externe isolant de serrage dont l'extrémité libre avant est vissée sur la partie arrière du corps de fiche et dont l'extrémité libre arrière comporte un épaulement radial interne qui coopère avec la face arrière en vis-à-vis de la bague de serrage pour provoquer le serrage de la tresse de blindage par vissage du manchon de serrage sur le corps de fiche.To this end, the invention provides an electrical connector of the type comprising a plug and a complementary base and in which the plug comprises a metal plug body which receives a plug insulating block, the through cells of which receive electrical contact elements, and a bayonet type coupling nut rotatably mounted on the front end of the plug body, characterized in that the rear end of the plug body comprises a hollow metal plug body extension which delimits a rear wiring chamber and of which the rear free end edge tightens the shielding braid of the electric cable to be connected against the front face opposite a clamping ring, and in that it comprises an insulating external clamping sleeve, the front free end is screwed onto the rear part of the plug body and the rear free end of which has an internal radial shoulder which cooperates with the rear face against the clamping ring to cause the shielding braid to be tightened by screwing the clamping sleeve onto the plug body.

Selon d'autres caractéristiques de l'invention :

  • le prolongateur de corps de fiche est vissé sur la partie arrière du corps de fiche ;
  • le bord d'extrémité libre arrière du prolongateur de corps de fiche et la face avant en vis-à-vis de la bague de serrage sont conformés en troncs de cônes complémentaires ;
  • la bague de serrage est réalisée en matériau isolant et se prolonge axialement vers l'arrière par un tube de guidage du câble électrique qui fait saillie hors du manchon de serrage à travers l'alésage qui délimite radialement ledit épaulement radial interne du manchon ;
  • l'extrémité libre avant du manchon de serrage comporte un taraudage vissé sur une portion filetée de la partie arrière du corps de fiche et une portion annulaire d'extrémité qui s'étend axialement vers l'avant au-delà du taraudage pour recouvrir partiellement la surface extérieure du corps de fiche avec interposition d'un anneau d'étanchéité ;
  • l'écrou d'accouplement comporte un revêtement en matériau isolant qui se prolonge axialement vers l'arrière par une portion annulaire d'extrémité qui chevauche ladite partie annulaire d'extrémité du manchon de serrage ;
  • le connecteur comporte un bouchon de fiche métallique qui, en position désacouplée du connecteur, est monté sur la fiche en lieu et place de l'embase et dont la surface externe accessible à l'utilisateur comporte un revêtement d'isolation électrique ;
  • l'embase comporte un corps d'embase métallique dont les portions de la surface externe accessibles à l'utilisateur en position accouplée sont isolées électriquement ;
  • les éléments de contact électrique de la fiche sont emboîtés élastiquement dans le bloc isolant dans les alvéoles duquel ils sont introduits axialement par l'arrière ; et
  • un anneau d'étanchéité eut agencé entre la paroi externe de chaque élément de contact électrique et la paroi interne en vis-à-vis de l'alvéole correspondant.
According to other characteristics of the invention:
  • the plug body extension is screwed onto the rear part of the plug body;
  • the rear free end edge of the plug body extension and the front face opposite the clamping ring are formed into truncated cones complementary;
  • the clamping ring is made of insulating material and is extended axially towards the rear by an electric cable guide tube which projects out of the clamping sleeve through the bore which radially delimits said internal radial shoulder of the sleeve;
  • the free front end of the adapter sleeve has a thread screwed onto a threaded portion of the rear part of the plug body and an annular end portion which extends axially forwards beyond the thread to partially cover the outer surface of the plug body with interposition of a sealing ring;
  • the coupling nut comprises a coating of insulating material which is extended axially towards the rear by an annular end portion which overlaps said annular end portion of the adapter sleeve;
  • the connector comprises a metal plug plug which, in the uncoupled position of the connector, is mounted on the plug in place of the socket and whose external surface accessible to the user includes an electrical insulation coating;
  • the base comprises a metal base body whose portions of the external surface accessible to the user in the coupled position are electrically isolated;
  • the electrical contact elements of the plug are fitted elastically in the insulating block into the cells from which they are introduced axially from the rear; and
  • a sealing ring would have been arranged between the external wall of each electrical contact element and the internal wall opposite the corresponding cell.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dont la figure 1 est une vue en coupe axiale d'un connecteur électrique conforme aux enseignements de l'invention et dont les figures 2 et 3 illustrent deux modes d'isolation de l'embase.Other characteristics and advantages of the invention will appear on reading the detailed description which follows to understand which reference will be made to the appended drawings, FIG. 1 of which is an axial section view of an electrical connector in accordance with the teachings. of the invention and of which Figures 2 and 3 illustrate two methods of isolating the base.

On reconnaît sur la figure 1 un connecteur électrique 10 constitué d'un élément de connecteur femelle, ou fiche, 12 et d'un élément de connecteur mâle, ou embase 14.We recognize in FIG. 1 an electrical connector 10 consisting of a female connector element, or plug, 12 and a male connector element, or socket 14.

Les deux éléments 12 et 14 sont représentés en position accouplée.The two elements 12 and 14 are shown in the coupled position.

La fiche 12 comporte un corps de fiche 16 métallique à l'intérieur duquel est agencé un bloc en matériau isolant 18.The plug 12 comprises a metallic plug body 16 inside which is insulated a block of insulating material 18.

Le bloc isolant 18 comporte des alvéoles débouchants 20 dont chacun reçoit un élément de contact électrique 22 qui est introduit axialement dans l'alvéole depuis la face arrière 24 du bloc isolant et dans lequel il est emboîté élastiquement. Dans l'exemple illustré à la figure, les éléments de contact électrique 22 de la fiche sont des éléments de contact mâle qui coopèrent avec des éléments de contact femelle complémentaires 23 agencés dans le bloc isolant de l'embase. La structure des blocs isolants est parfaitement symétrique et permet d'inverser l'agencement des contacts électriques mâle et femelle par rapport au mode de réalisation illustré à la figure, la notion d'élément de connecteur femelle ou fiche étant à comprendre indépendamment du type des élément de contact électrique qu'il reçoit.The insulating block 18 comprises through cells 20 each of which receives an electrical contact element 22 which is introduced axially into the cell from the rear face 24 of the insulating block and in which it is fitted elastically. In the example illustrated in the figure, the electrical contact elements 22 of the plug are male contact elements which cooperate with complementary female contact elements 23 arranged in the insulating block of the base. The structure of the insulating blocks is perfectly symmetrical and makes it possible to reverse the arrangement of the male and female electrical contacts with respect to the embodiment illustrated in the figure, the concept of element of female connector or plug being to be understood independently of the type of electrical contact element which it receives.

D'une manière connue, la partie d'extrémité avant 26 du corps de fiche est équipée d'un écrou d'accouplement métallique à baïonnette 28. Le maintien axial de l'écrou 28 et la continuité électrique entre l'écrou 28 et le corps de fiche 16 sont assurés au moyen d'un ressort 30 de structure connue représenté schématiquement.In a known manner, the front end part 26 of the plug body is equipped with a coupling nut metallic bayonet 28. The axial retention of the nut 28 and the electrical continuity between the nut 28 and the plug body 16 are ensured by means of a spring 30 of known structure shown diagrammatically.

La partie arrière 32 du corps de fiche 16 comporte un taraudage interne dans lequel est vissée l'extrémité libre avant filetée 34 d'un prolongateur de corps de fiche 36.The rear part 32 of the plug body 16 has an internal thread into which the free threaded front end 34 of a plug body extension 36 is screwed.

Le prolongateur 36 est un élément métallique en forme de douille creuse dont l'alésage interne 38 délimite une chambre de câblage interne 40 prévue pour recevoir les fils à raccorder aux éléments 22 d'un câble électrique blindé de section cylindrique à tresse de blindage périphérique (non représenté).The extension 36 is a metallic element in the form of a hollow socket, the internal bore 38 of which delimits an internal wiring chamber 40 intended to receive the wires to be connected to the elements 22 of a screened electric cable of cylindrical section with a braid of peripheral screening ( not shown).

Le bord libre d'extrémité arrière 42 du prolongateur 36 présente une section de profil tronconique en creux qui est prévue pour coopérer avec la face avant de profil complémentaire 44 d'une bague de serrage 46 en matériau isolant.The free rear end edge 42 of the extension 36 has a hollow frustoconical profile section which is designed to cooperate with the front face of complementary profile 44 of a clamping ring 46 made of insulating material.

Une férule métallique bi-conique 48 est interposée entre l'extrémité 42 et la face 44. La férule est prévue pour recevoir l'extrémité de la tresse métallique de blindage du câble de manière à assurer le serrage de cette dernière entre l'extrémité 42 et la face correspondante 50 de la férule.A bi-conical metal ferrule 48 is interposed between the end 42 and the face 44. The ferrule is designed to receive the end of the metal braid for shielding the cable so as to ensure the tightening of the latter between the end 42 and the corresponding face 50 of the ferrule.

Le serrage axial entre le prolongateur 36 et la bague 46 est assuré au moyen d'un manchon de serrage externe 52 en matériau isolant.The axial clamping between the extension 36 and the ring 46 is ensured by means of an external clamping sleeve 52 made of insulating material.

Le manchon 52 comporte un alésage interne 54 dans lequel est reçu le corps cylindrique du prolongateur 36.The sleeve 52 has an internal bore 54 in which the cylindrical body of the extension 36 is received.

L'extrémité avant de l'alésage 54 comporte un taraudage interne 56 qui est vissé sur un filetage extérieur correspondant formé dans la surface extérieure de la partie arrière 32 du corps de fiche 16.The front end of the bore 54 has an internal thread 56 which is screwed onto a corresponding external thread formed in the external surface of the rear part 32 of the plug body 16.

L'alésage 54 est délimité axialement vers l'arrière par un épaulement radial interne 58 dont la face radiale intérieure 60 coopère avec la face radiale en vis-à-vis 62 de la bague de serrage 46, avec interposition d'une rondelle 64.The bore 54 is delimited axially towards the rear by an internal radial shoulder 58 whose internal radial face 60 cooperates with the radial face opposite 62 of the clamping ring 46, with the interposition of a washer 64.

La bague de serrage 46 est réalisée en matériau isolant élastomère et se prolonge axialement vers l'arrière par un tube de guidage "passe-fil" 66 qui traverse l'épaulement 58 par un alésage interne 68 de ce dernier pour s'étendre en dehors du manchon 52 vers l'arrière. Le tube de guidage 66 est prévu pour coopérer avec la paroi extérieure de la gaine du câble à raccorder.The clamping ring 46 is made of elastomeric insulating material and is extended axially towards the rear by a "wire-passing" guide tube 66 which passes through the shoulder 58 by an internal bore 68 of the latter to extend outwards. of the sleeve 52 towards the rear. The guide tube 66 is provided to cooperate with the outer wall of the sheath of the cable to be connected.

On comprend aisément que le vissage du manchon 52 sur le corps de fiche 16 a pour effet de provoquer un rapprochement axial des surfaces 42 et 44 et donc un serrage des surfaces 42 et 50 entre lesquelles eut reçue la tresse de blindage du câble de manière à assurer la meilleure continuité électrique possible entre la tresse et le corps de fiche 16 à travers le prolongateur métallique 36.It is easily understood that the screwing of the sleeve 52 on the plug body 16 has the effect of bringing about an axial bringing together of the surfaces 42 and 44 and therefore a tightening of the surfaces 42 and 50 between which the braid for shielding the cable has been received so as to ensure the best possible electrical continuity between the braid and the plug body 16 through the metal extension 36.

Le manchon de serrage isolant 52 se prolonge axialement vers l'avant au-delà du taraudage 56 par une portion annulaire 70 qui recouvre la surface externe du corps de fiche 16.The insulating clamping sleeve 52 extends axially forwards beyond the thread 56 by an annular portion 70 which covers the external surface of the plug body 16.

Un anneau d'étanchéité 72 monté dans une gorge 74 du corps de fiche coopère avec la surface cylindrique intérieure du prolongement 70.A sealing ring 72 mounted in a groove 74 in the plug body cooperates with the internal cylindrical surface of the extension 70.

Outre sa fonction d'étanchéité, le prolongement 70 est prévu pour coopérer avec un prolongement annulaire correspondant 76 qui s'étend axialement vers l'arrière et prolonge un revêtement 78 en matériau isolant qui recouvre l'écrou 28.In addition to its sealing function, the extension 70 is provided to cooperate with a corresponding annular extension 76 which extends axially towards the rear and extends a coating 78 of insulating material which covers the nut 28.

Les portions annulaires 76 et 70 se chevauchent axialement dans toutes les positions relatives de l'écrou d'accouplement 28 par rapport au corps de fiche 16 de manière à assurer une continuité de l'isolation électrique externe de la fiche depuis le bord libre avant 82 de l'écrou jusqu'au tube de guidage isolant 66.The annular portions 76 and 70 overlap axially in all the relative positions of the coupling nut 28 relative to the plug body 16 so as to ensure continuity of the external electrical insulation of the plug from the free front edge 82 of the nut to the insulating guide tube 66.

L'embase 14 comporte également un corps d'embase métallique 84 et un bloc isolant 86. Les portions d'extrémité avant 26 et 88 des corps de fiche 16 et d'embase 84 pénètrent l'une dans l'autre en position accouplée et un joint d'étanchéité 90 est interposé entre ces deux portions.The base 14 also includes a metal base body 84 and an insulating block 86. The front end portions 26 and 88 of the plug body 16 and base 84 penetrate into each other in the coupled position and a seal 90 is interposed between these two portions.

Selon une variante de la conception illustrée sur la figure, il est possible de prévoir que le bord avant 85 du corps d'embase 84 se prolonge axialement de manière à venir en butée mécanique axiale contre la face en vis-à-vis 89 de l'épaulement radial externe 91 du corps de fiche. Cette butée mécanique a pour effet d'améliorer la continuité électrique de masse et d'éviter également un écrasement excessif du joint d'étanchéité 90 lors de l'accouplement.According to a variant of the design illustrated in the figure, it is possible to provide that the front edge 85 of the base body 84 is extended axially so as to come into axial mechanical abutment against the face opposite 89 of the 'external radial shoulder 91 of the plug body. This mechanical stop has the effect of improving electrical ground continuity and also of avoiding excessive crushing of the seal 90 during coupling.

Un joint d'étanchéité est également agencé entre le bloc isolant 86 et le corps d'embase 84, de même qu'un joint 17 est disposé entre le bloc isolant 18 et le corps de fiche 16.A seal is also arranged between the insulating block 86 and the base body 84, just as a seal 17 is arranged between the insulating block 18 and the plug body 16.

L'étanchéité est également assurée entre les éléments de contact électrique et leurs alvéoles du fait de l'élasticité du matériau isolant des blocs isolants. Selon une variante non représentée, il eut possible d'agencer un anneau d'étanchéité autour de chaque contact qui coopère avec l'alésage de l'alvéole correspondant.Sealing is also ensured between the electrical contact elements and their cells due to the elasticity of the insulating material of the insulating blocks. According to a variant not shown, it was possible to arrange a sealing ring around each contact which cooperates with the bore of the corresponding socket.

Lors du serrage du manchon 52, l'effort de compression axial appliqué à la bague 46 en matériau élastomère souple provoque son expansion radiale. Cette expansion a pour effet de procurer un serrage périphérique interne de la gaine du câble à raccorder ce qui assure l'étanchéité entre la bague et le câble et un serrage périphérique externe en coopération avec l'alésage 54 ce qui assure l'étanchéité entre la bague et le manchon de serrage 52.When tightening the sleeve 52, the axial compression force applied to the ring 46 of flexible elastomeric material causes its radial expansion. This expansion has the effect of providing internal peripheral tightening of the sheath of the cable to be connected, which ensures the seal between the ring and the cable and an external peripheral clamping in cooperation with the bore 54 which ensures the seal between the ring and the clamping sleeve 52.

Grâce à la conception selon l'invention, on assure donc simultanément une continuité électrique de blindage, une étanchéité parfaite et une isolation électrique externe complète.Thanks to the design according to the invention, it therefore simultaneously ensures electrical shielding continuity, perfect sealing and complete external electrical insulation.

La figure 2 illustre un premier mode de réalisation de l'isolation du corps d'embase 84. Un écrou en matériau isolant 92 est vissé sur le corps 84. Il comporte un prolongement annulaire axial 94 qui s'étend axialement vers l'avant et chevauche le revêtement isolant 78 de l'écrou de verrouillage 28.FIG. 2 illustrates a first embodiment of the insulation of the base body 84. A nut made of insulating material 92 is screwed onto the body 84. It has an axial annular extension 94 which extends axially forward and overlaps the insulating coating 78 of the locking nut 28.

Dans le mode de réalisation de la figure 3, l'écrou de montage 92 de l'embase est métallique. Il est recouvert par la jupe arrière 96 d'un écrou d'isolation 98 qui est également vissé sur le corps d'embase 84. L'écrou d'isolation 98 comporte également un prolongement annulaire 90 comme dans le cas de la figure 2.In the embodiment of Figure 3, the mounting nut 92 of the base is metallic. It is covered by the rear skirt 96 with an insulation nut 98 which is also screwed onto the base body 84. The insulation nut 98 also has an annular extension 90 as in the case of FIG. 2.

La face avant du panneau 100 qui reçoit l'embase peut également être recouverte d'un matériau isolant.The front face of the panel 100 which receives the base can also be covered with an insulating material.

Pour assurer la protection de l'utilisateur et des éléments de contact électrique en position désacouplée, chacun des deux éléments de connecteur peut être équipé d'un bouchon de fermeture dont le corps est métallique et dont la paroi extérieure est revêtue de matériau isolant.To protect the user and the electrical contact elements in the uncoupled position, each of the two connector elements can be fitted with a closure plug whose body is metallic and whose outer wall is coated with insulating material.

Le raccordement de la fiche sur le câble avec la présence de la chambre de câblage 40 permet d'assurer aisément la réparation et/ou le remplacement d'un élément de contact 22 par dévissage du prolongateur 36 et ceci même en cas de très forte densité d'éléments de contact électrique. Le dévissage du prolongateur peut être facilité par une zone externe de préhension par exemple molletée.The connection of the plug on the cable with the presence of the wiring chamber 40 makes it possible to easily repair and / or replace a contact element 22 by unscrewing the extension 36 and this even in the event of very high density electrical contact elements. Unscrewing the extension can be facilitated by an external gripping area by speckled example.

Dans une variante simplifiée non représentée, le prolongateur 36 peut être de dimension très réduite axialement pour former une chambre de câblage très courte et, dans ce dernier cas, être réalisé en une seule pièce avec le corps de fiche 16.In a simplified variant not shown, the extension 36 can be of very small size axially to form a very short wiring chamber and, in the latter case, be produced in one piece with the plug body 16.

Claims (10)

  1. Electrical connector (10) of the type having a plug (12) and a complementary socket (14) and in which the plug has a metal plug body (16) housing an insulating plug block (18), the open-ended receptacles (20) of which receive electrical contact elements (22), and a coupling nut (28) of the bayonet type mounted rotatably on the front end (26) of the plug body, characterised in that the rear end (32) of the plug body has a hollow metal plug body extension (36) which defines a rear wiring chamber (40) and the rear free end edge (42) of which grips the protective braiding of the electric cable to be connected against the opposite front face (44) of a clamping ring (46), and in that it has an external insulating clamping sleeve (52), the front free end (56) of which is screwed onto the rear part (32) of the plug body (16) and the rear free end of which has an internal radial shoulder (58) which cooperates with the opposite rear face (62) of the clamping ring (46) so as to bring about the clamping of the protective braiding by the screwing of the clamping sleeve (52) onto the plug body.
  2. Connector according to Claim 1, characterised in that the plug body extension is screwed onto the rear part (32) of the plug body.
  3. Connector according to Claim 1 or 2, characterised in that the rear free end edge (42) of the plug body extension (36) and the said opposite front face (44) of the clamping ring (46) are shaped as complementary truncated cones.
  4. Electrical connector according to any one of Claims 1 to 3, characterised in that the clamping ring (46) is made from insulating material and is extended axially towards the rear by a guide tube (66) for the electric cable which projects out of the clamping sleeve through the bore (68) which radially delimits the said internal radial shoulder (58) on the sleeve (52).
  5. Electrical connector according to any one of Claims 1 to 4, characterised in that the front free end of the clamping sleeve has a thread (56) screwed onto a threaded portion of the rear part (32) of the plug body (16) and an end annular portion (70) which extends axially towards the front beyond the thread in order to cover partially the external surface of the plug body with the interposing of a sealing ring (72).
  6. Electrical connector according to Claim 5, characterised in that the coupling nut (28) has a covering (78) of insulating material which is extended axially towards the rear by an end annular portion (76) which overlaps the said end annular part (70) of the clamping sleeve (52).
  7. Electrical connector according to any one of the preceding claims, characterised in that it has a metal plug seal which, in the uncoupled position of the connector, is mounted on the plug in place of the socket and the external surface of which, accessible to the user, has a covering of electrical insulation.
  8. Electrical connector according to any one of the preceding claims, characterised in that the socket (14) has a metal socket body (84), on which the portions of the external surface which are accessible to the user in the coupled position are electrically insulated.
  9. Electrical connector according to any one of the preceding claims, characterised in that the electrical contact elements of the plug are elastically fitted into the insulating block in the receptacles of which they are inserted axially from the rear.
  10. Electrical connector according to Claim 9, characterised in that a sealing ring is arranged between the external wall of each electrical contact element and the opposite internal wall of the corresponding receptacle.
EP91402658A 1990-10-05 1991-10-04 Shielded, sealed and electrically insulated electrical connector Expired - Lifetime EP0479684B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9012330A FR2667731B1 (en) 1990-10-05 1990-10-05 SHIELDED ELECTRICAL CONNECTOR, WATERPROOF AND ELECTRICALLY INSULATED.
FR9012330 1990-10-05

Publications (2)

Publication Number Publication Date
EP0479684A1 EP0479684A1 (en) 1992-04-08
EP0479684B1 true EP0479684B1 (en) 1994-07-27

Family

ID=9400990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402658A Expired - Lifetime EP0479684B1 (en) 1990-10-05 1991-10-04 Shielded, sealed and electrically insulated electrical connector

Country Status (3)

Country Link
EP (1) EP0479684B1 (en)
DE (1) DE69103115T2 (en)
FR (1) FR2667731B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725079B1 (en) * 1994-09-23 1996-12-06 Bernier Raymond DEVICE FOR FIXING AN ELECTRICAL CONNECTOR PLUG TO AN EXTERNAL CYLINDRICAL CONNECTION SLEEVE
EP2190078A1 (en) * 2008-11-25 2010-05-26 Mark Godovich Techniques for protecting a user-accessible electrical connector
CN111509636B (en) * 2016-01-13 2022-01-18 迅捷装配有限公司 Integrated conduit duct with adapter device and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1141834A (en) * 1979-05-23 1983-02-22 Donald H. Gould Electrical connector for coaxial cable
FR2632783B1 (en) * 1988-06-10 1992-02-28 Souriau & Cie LOCKED ELECTRICAL CONNECTOR

Also Published As

Publication number Publication date
FR2667731A1 (en) 1992-04-10
FR2667731B1 (en) 1993-03-26
DE69103115T2 (en) 1995-03-16
EP0479684A1 (en) 1992-04-08
DE69103115D1 (en) 1994-09-01

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