EP3069413B1 - Electric connector with shield contact - Google Patents

Electric connector with shield contact Download PDF

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Publication number
EP3069413B1
EP3069413B1 EP14809600.1A EP14809600A EP3069413B1 EP 3069413 B1 EP3069413 B1 EP 3069413B1 EP 14809600 A EP14809600 A EP 14809600A EP 3069413 B1 EP3069413 B1 EP 3069413B1
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EP
European Patent Office
Prior art keywords
sleeve
connector
shield
wall
cable
Prior art date
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Active
Application number
EP14809600.1A
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German (de)
French (fr)
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EP3069413A1 (en
Inventor
Jean Fabre
Frédéric BELLIARD
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Aptiv Technologies Ltd
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Aptiv Technologies Ltd
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Publication of EP3069413A1 publication Critical patent/EP3069413A1/en
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Publication of EP3069413B1 publication Critical patent/EP3069413B1/en
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Classifications

    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • 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
    • H01R9/0527—Connection to outer conductor by action of a resilient member, e.g. spring
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6596—Specific features or arrangements of connection of shield to conductive members the conductive member being a metal grounding panel
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • H01R13/748—Means for mounting coupling parts in openings of a panel using one or more screws

Definitions

  • the invention relates to the field of electrical connectors, for example electrical power connectors and, in particular, electrical power connectors for electric or hybrid motor vehicles.
  • Power electrical connectors are used in electric or hybrid motor vehicles, for example to interconnect a set of batteries to an electric motor, a power converter, etc.
  • An aim of the invention is to provide a connector comprising shielding that is simple and economical to manufacture and mount in this connector.
  • the invention implements a shielding recovery ring designed for a set of connectors comprising a connector, a counter-connector and a shielding wall .
  • the connector is intended to be mounted on the shield wall.
  • the shielding wall corresponds for example to an electrically conductive wall of a housing inside which the counter-connector is mounted.
  • the connector includes a sleeve made of electrically insulating material. At least one first contact is housed in this sleeve. It is attached, for example by crimping or soldering, to the end of a cable.
  • This cable is also provided with a shielding sheath formed for example of a flexible conductive braid.
  • the counter-connector comprises at least one second contact intended to be connected to the first contact.
  • the shielding recovery ring then comprises an internal portion, located inside the sleeve and electrically in connection with the shielding sheath of the cable, and an external portion located outside the sleeve, made integrally with the internal portion , and electrically in connection with the shielding wall.
  • the shielding recovery ring is made up of a single element which ensures electrical continuity, and therefore shielding continuity, between the shielding sheath of the cable and housing.
  • At least one of the internal and external portions of the shielding recovery ring may comprise at least one elastic tab in order to optimize electrical conduction on the shielding sheath of the cable and/or on the shielding wall.
  • the connector can then include a support made of electrically insulating material extending radially around and outside the sleeve, for example substantially perpendicular to the longitudinal axis of the sleeve.
  • This support is attached to the shielding wall and thus allows the connector to be fixed on the housing in which the counter-connector is mounted.
  • An interfacial seal is arranged between the support and the shielding wall, around the sleeve and the external portion of the shielding recovery ring.
  • a wire seal is also placed around the cable, inside the sleeve and on the other side of the first contact in relation to the internal portion of the shielding connection ring. In this way the seal between the connector and the housing is ensured, while maintaining the shielding recovery ring in a sealed zone.
  • FIG. 1 An example set of connectors is shown in the figure 1 .
  • This example corresponds to a connector 100 mounted on the shielding wall 200.
  • This shielding wall 200 corresponds to a wall of a power device such as a power converter or electric motor.
  • a counter-connector 300 here in the form of a bus-bar partially shown, is mounted in the power device. It includes one or more contacts 310, in the case presented here, male contacts.
  • the connector 100 comprises a support 110 in the form of a plate extending substantially perpendicular to the longitudinal axis of a plurality of sleeves 120 (here three in number) and radially around and outside these .
  • the support 110 and the sleeves 120 constitute a single piece molded from electrically insulating plastic material.
  • the support 110 has holes 112 (here four for example) passing through for the passage of screws 114 ensuring the fixing of the connector 100 on the shielding wall 200 (see Figure 3 ). These holes 112 are reinforced by metal cylindrical inserts.
  • Each sleeve 120 has an internal surface 124 and an external surface 125 (see figure 2 ). It also includes a portion intended to be introduced into the power device on which the connector 100 is mounted, through the shielding wall 200, as well as a portion intended to remain outside this device.
  • Each sleeve 120 receives a electrical contact 122. In the example chosen and represented on the Figure 3 , this electrical contact 122 is a female contact. This is crimped to the stripped end of the core 402 of a cable 400 which also comprises an internal sheath 404 insulating the core 402 from a shielding sheath 406 and an external insulating sheath 408 covering itself the shielding sheath 406.
  • the cable 400 is for example a shielded cable with a section of 16 mm 2 .
  • the shielding sheath 406 is itself stripped on a portion to be slid and crimped between an external ferrule 410 and an internal ferrule 411, in order to press the shielding sheath 406 between two rigid elements and thus ensure electrical conduction and therefore also optimal shielding continuity.
  • the shielding sheath 406 is itself stripped on a portion which receives an electrically conductive ferrule 410.
  • the cable 400 receives a unitary wire seal 412 in elastomer comprising, on the one hand, an internal surface 414 ensuring sealing with the external insulating sheath 408 of the cable 400 and, on the other hand, an external surface 416 provided with lips intended to come into contact with and support a section of the sleeve 120 and thus ensuring sealing with the internal surface of the sleeve 120 (see figure 2 ).
  • a retaining ring 500 inserted on the cable 400, is introduced and clipped in the opening of a sleeve 120 intended for the insertion of the cable 400, in order to retain the unitary wire joint 412 in this sleeve 120.
  • Each sleeve 120 also receives a shielding recovery ring 600 made of electrically conductive material (see Figure 4 ).
  • Each shielding recovery ring 600 consists of a section of metal tape wound around a longitudinal axis parallel to that of the sleeve 120 in which it is mounted. It is a single part comprising an internal portion 602 and an external portion 604 made integrally with the internal portion 602. Cutting a section of a ribbon from a metal sheet and shaping it by winding this section are therefore particularly easy and inexpensive compared in particular to deep drawing or forming processes.
  • the internal portion 602 of the shielding recovery ring 600 is located inside the sleeve 120, in the part thereof intended to remain outside the device on which the connector 100 is mounted.
  • the internal portion of the shielding recovery ring 602 rests on a section of the internal surface 124 of the sleeve 120, distinct from the section of the internal surface 124 of the sleeve 120 in contact with the unitary wire seal 412.
  • the internal portion 602 of the ring shielding recovery 600 is electrically connected to the shielding sheath 406, via internal elastic tabs 606 extending towards the interior of the section of wound metal tape and themselves resting on the ferrule 410 to ensure a electrical contact with it.
  • the external portion 604 of the shielding recovery ring 600 is located outside the sleeve 120 and is electrically connected, via external elastic tabs 608, to the shielding wall 200.
  • the internal elastic tabs 606 are oriented so as to facilitate the insertion of the contact 122 and the ferrule 410 through the shielding recovery ring 600. For example, they extend between a fixed end located on the side of the opening of the sleeve 120 intended for the insertion of the cable 400 and a free end located on the side of the sleeve 120 oriented towards the counter-connector 300.
  • the external elastic tabs 608 are oriented so as to facilitate the insertion of the connector 100 which is provided with it through an opening in the wall shielding 200. For example, they extend between a fixed end located on the side of the sleeve 120 oriented towards the counter-connector 300, towards a free end oriented on the side of the opening of the sleeve 120 intended for the insertion of the cable 400.
  • the outer portion 604 of the shielding recovery ring 600 extends from an edge of the wound section of metal tape and passes through one or more openings 126 provided in the wall 128 of the sleeve 120.
  • An interfacial seal 116 is disposed in a groove of the support 110, projecting outside thereof, between the support 110 and the shielding wall 200, around one or more sleeve(s) and the external portion 604 of the shielding recovery ring 600. This interfacial seal 116 therefore ensures that the seal between the connector 100 and the shielding wall 200. Such an interfacial seal 116 can for example guarantee sealing under an overpressure of one bar, when of salt spray tests for 1600 hours.
  • the ring shielding recovery 600 is located in a sealed zone located between the unitary wire seal 412 and the interfacial seal 116.
  • a cover 700 is clipped onto the support 110 in order to guide the cables 400 at the exit of the connector 100 and to avoid direct exposure of the unitary wire joints 412 to liquid projections.
  • the shielding wall 200 corresponds to a wall of a device incorporating the counter-connector 300, but the shielding wall 200, in a variant, could be a wall of the counter-connector 300 itself. -same or even more directly a shielding of this counter-connector 300 in the form of sheet metal or braid. In this case, it is possible not to provide a shielding wall 200 between the connector 100 and the counter-connector 300.
  • the connector 100 can be used as a wire pass-through, the cable passing through the shielding wall 200 on which recovery ring shielding 600 comes into electrical contact, but the connector 100, used as a wire pass-through, does not necessarily have a contact 122, the end of the cable 400 being able to be directly crimped or soldered to a bus bar or another device

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

L'invention concerne le domaine des connecteurs électriques, par exemple des connecteurs électriques de puissance et, notamment, des connecteurs électriques de puissance pour véhicules automobiles électriques ou hybrides.The invention relates to the field of electrical connectors, for example electrical power connectors and, in particular, electrical power connectors for electric or hybrid motor vehicles.

Les connecteurs électriques de puissance sont utilisés dans les véhicules automobiles électriques ou hybrides par exemple pour interconnecter un ensemble de batteries à un moteur électrique, à un convertisseur de puissance, etc.Power electrical connectors are used in electric or hybrid motor vehicles, for example to interconnect a set of batteries to an electric motor, a power converter, etc.

Dans les véhicules hybrides et électriques, les courants électriques transmis par les câbles et les connecteurs des circuits électriques de puissance sont relativement élevés et peuvent atteindre 600 Ampères, voire 1500 Ampères en pics de courant. La puissance électrique acheminée à travers des câbles électriques et des connecteurs est donc susceptible de générer des perturbations électromagnétiques. Aussi est-il important de pouvoir limiter au maximum ces perturbations électromagnétiques. À cette fin, on utilise un blindage au niveau des câbles, ainsi qu'au niveau des connecteurs. Les documents US20010027040A1 et US6261108B1 décrivent des solutions permettant d'assurer la continuité de blindage entre un câble électrique blindé et une paroi.In hybrid and electric vehicles, the electrical currents transmitted by the cables and connectors of the electrical power circuits are relatively high and can reach 600 Amps, or even 1500 Amps in current peaks. Electrical power carried through electrical cables and connectors is therefore likely to generate electromagnetic disturbances. It is therefore important to be able to limit these electromagnetic disturbances as much as possible. For this purpose, shielding is used on the cables, as well as on the connectors. The documents US20010027040A1 And US6261108B1 describe solutions for ensuring shielding continuity between an armored electrical cable and a wall.

Un but de l'invention est de fournir un connecteur comportant un blindage simple et économique à fabriquer et à monter dans ce connecteur.An aim of the invention is to provide a connector comprising shielding that is simple and economical to manufacture and mount in this connector.

Ce but est au moins en partie atteint grâce à un connecteur selon la revendication 1. Notamment, l'invention met en oeuvre une bague de reprise de blindage conçue pour un ensemble de connecteurs comprenant un connecteur, un contre-connecteur et une paroi de blindage. Le connecteur est destiné à être monté sur la paroi de blindage. La paroi de blindage correspond par exemple à une paroi électriquement conductrice d'un boîtier à l'intérieur duquel est monté le contre-connecteur. Le connecteur comporte un manchon en matière électriquement isolante. Au moins un premier contact est logé dans ce manchon. Il est attaché, par exemple par sertissage ou soudure, à l'extrémité d'un câble. Ce câble est par ailleurs muni d'une gaine de blindage formée par exemple d'une tresse conductrice souple. Le contre-connecteur comporte au moins un deuxième contact destiné à être connecté au premier contact. La bague de reprise de blindage comporte alors une portion interne, située à l'intérieur du manchon et électriquement en liaison avec la gaine de blindage du câble, et une portion externe située à l'extérieur du manchon, venue de matière avec la portion interne, et électriquement en liaison avec la paroi de blindage.This goal is at least partly achieved thanks to a connector according to claim 1. In particular, the invention implements a shielding recovery ring designed for a set of connectors comprising a connector, a counter-connector and a shielding wall . The connector is intended to be mounted on the shield wall. The shielding wall corresponds for example to an electrically conductive wall of a housing inside which the counter-connector is mounted. The connector includes a sleeve made of electrically insulating material. At least one first contact is housed in this sleeve. It is attached, for example by crimping or soldering, to the end of a cable. This cable is also provided with a shielding sheath formed for example of a flexible conductive braid. The counter-connector comprises at least one second contact intended to be connected to the first contact. The shielding recovery ring then comprises an internal portion, located inside the sleeve and electrically in connection with the shielding sheath of the cable, and an external portion located outside the sleeve, made integrally with the internal portion , and electrically in connection with the shielding wall.

Ainsi, la bague de reprise de blindage est constituée d'un élément unique qui assure la continuité électrique, et donc la continuité de blindage, entre la gaine de blindage du câble et le boîtier. En limitant le nombre d'éléments assurant cette continuité de blindage à un seul, on augmente l'efficacité du blindage et on simplifie la fabrication et le montage du dispositif assurant cette fonction, qui devient en conséquence plus économique.Thus, the shielding recovery ring is made up of a single element which ensures electrical continuity, and therefore shielding continuity, between the shielding sheath of the cable and housing. By limiting the number of elements ensuring this shielding continuity to a single one, the effectiveness of the shielding is increased and the manufacturing and assembly of the device ensuring this function is simplified, which consequently becomes more economical.

Au moins l'une des portions interne et externe de la bague de reprise de blindage peut comprendre au moins une languette élastique afin d'optimiser la conduction électrique sur la gaine de blindage du câble et/ou sur la paroi de blindage.At least one of the internal and external portions of the shielding recovery ring may comprise at least one elastic tab in order to optimize electrical conduction on the shielding sheath of the cable and/or on the shielding wall.

Par ailleurs, dans certains environnements et notamment hors de l'habitacle des véhicules, une étanchéité à l'eau est requise.Furthermore, in certain environments and in particular outside the passenger compartment of vehicles, watertightness is required.

Le connecteur peut alors comporter un support en matière électriquement isolante s'étendant radialement autour et à l'extérieur du manchon, par exemple substantiellement perpendiculairement à l'axe longitudinal du manchon. Ce support est attaché à la paroi de blindage et permet ainsi de fixer le connecteur sur le boîtier dans lequel est monté le contre-connecteur. Un joint interfacial est disposé entre le support et la paroi de blindage, autour du manchon et de la portion externe de la bague de reprise de blindage. Un joint filaire est aussi disposé autour du câble, à l'intérieur du manchon et de l'autre côté du premier contact par rapport à la portion interne de la bague de reprise de blindage. De cette manière l'étanchéité entre le connecteur et le boîtier est assurée, tout en maintenant la bague de reprise de blindage dans une zone étanche.The connector can then include a support made of electrically insulating material extending radially around and outside the sleeve, for example substantially perpendicular to the longitudinal axis of the sleeve. This support is attached to the shielding wall and thus allows the connector to be fixed on the housing in which the counter-connector is mounted. An interfacial seal is arranged between the support and the shielding wall, around the sleeve and the external portion of the shielding recovery ring. A wire seal is also placed around the cable, inside the sleeve and on the other side of the first contact in relation to the internal portion of the shielding connection ring. In this way the seal between the connector and the housing is ensured, while maintaining the shielding recovery ring in a sealed zone.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit ainsi que sur les dessins annexés. Sur ces dessins :

  • la figure 1 représente schématiquement en perspective un exemple de mode de réalisation d'un ensemble de connecteurs conforme à l'invention ;
  • la figure 2 représente schématiquement en perspective et en coupe longitudinale l'ensemble de connecteurs de la figure 1, sans son capot de protection ;
  • la figure 3 représente schématiquement en perspective et en coupe longitudinale un ensemble de connecteurs conforme à l'invention et un câble destiné à être inséré dans celui-ci ; et
  • la figure 4 représente schématiquement en perspective et en coupe longitudinale l'ensemble de connecteurs des figures 1 et 2, avec son capot de protection.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows as well as in the appended drawings. In these drawings:
  • there figure 1 schematically represents in perspective an example of an embodiment of a set of connectors according to the invention;
  • there figure 2 schematically represents in perspective and in longitudinal section the set of connectors of the figure 1 , without its protective cover;
  • there Figure 3 schematically represents in perspective and in longitudinal section a set of connectors according to the invention and a cable intended to be inserted therein; And
  • there figure 4 schematically represents in perspective and in longitudinal section the set of connectors of the figures 1 and 2 , with its protective cover.

Un exemple d'ensemble de connecteurs est représenté sur la figure 1. Cet exemple correspond à un connecteur 100 monté sur la paroi de blindage 200. Cette paroi de blindage 200 correspond à une paroi d'un dispositif de puissance tel qu'un convertisseur de puissance ou un moteur électrique. Un contre-connecteur 300, ici sous forme d'un bus-bar partiellement représenté, est monté dans le dispositif de puissance. Il comporte un ou plusieurs contacts 310, dans le cas présenté ici, des contacts mâles.An example set of connectors is shown in the figure 1 . This example corresponds to a connector 100 mounted on the shielding wall 200. This shielding wall 200 corresponds to a wall of a power device such as a power converter or electric motor. A counter-connector 300, here in the form of a bus-bar partially shown, is mounted in the power device. It includes one or more contacts 310, in the case presented here, male contacts.

Comme représenté de manière plus détaillée sur la figure 2, le connecteur 100 comporte un support 110 sous forme d'une plaque s'étendant substantiellement perpendiculairement à l'axe longitudinal d'une pluralité de manchons 120 (ici au nombre de trois) et radialement autour et à l'extérieur de ceux-ci. Le support 110 et les manchons 120 constituent une pièce unique moulée en matière plastique électriquement isolante. Le support 110 présente des trous 112 (ici quatre par exemple) traversant pour le passage de vis 114 assurant la fixation du connecteur 100 sur la paroi de blindage 200 (voir figure 3). Ces trous 112 sont renforcés par des inserts cylindriques métalliques.As shown in more detail on the figure 2 , the connector 100 comprises a support 110 in the form of a plate extending substantially perpendicular to the longitudinal axis of a plurality of sleeves 120 (here three in number) and radially around and outside these . The support 110 and the sleeves 120 constitute a single piece molded from electrically insulating plastic material. The support 110 has holes 112 (here four for example) passing through for the passage of screws 114 ensuring the fixing of the connector 100 on the shielding wall 200 (see Figure 3 ). These holes 112 are reinforced by metal cylindrical inserts.

Chaque manchon 120 comporte une surface interne 124 et une surface externe 125 (voir figure 2). Il comporte également une portion destinée à être introduite dans le dispositif de puissance sur lequel est monté le connecteur 100, à travers la paroi de blindage 200, ainsi qu'une portion destinée à rester à l'extérieur de ce dispositif Chaque manchon 120 reçoit un contact 122 électrique. Dans l'exemple choisi et représenté sur la figure 3, ce contact 122 électrique est un contact femelle. Celui-ci est serti à l'extrémité dénudée de l'âme 402 d'un câble 400 qui comporte par ailleurs une gaine interne 404 isolant l'âme 402 d'une gaine de blindage 406 et une gaine externe 408 isolante enrobant elle-même la gaine de blindage 406. Le câble 400 est par exemple un câble blindé de 16 mm2 de section. La gaine de blindage 406 est elle-même dénudée sur une portion pour être glissée et sertie entre une férule externe 410 et une férule interne 411, afin de presser la gaine de blindage 406 entre deux éléments rigides et d'assurer ainsi une conduction électrique et donc aussi une continuité de blindage optimales. En amont de la zone de sertissage sur l'âme 402 dénudée, la gaine de blindage 406 est elle-même dénudée sur une portion qui reçoit une férule 410 électriquement conductrice. Encore en amont de la férule 410, le câble 400 reçoit un joint unitaire filaire 412 en élastomère comportant, d'une part, une surface interne 414 assurant l'étanchéité avec la gaine externe 408 isolante du câble 400 et, d'autre part, une surface externe 416 munie de lèvres destinées à venir en appui et en contact d'une section du manchon 120 et assurant ainsi l'étanchéité avec la surface interne du manchon 120 (voir figure 2). Encore en amont du joint unitaire filaire 412, une bague de maintien 500, insérée sur le câble 400, est introduite et clipsée dans l'ouverture d'un manchon 120 destinée à l'insertion du câble 400, afin de retenir le joint unitaire filaire 412 dans ce manchon 120.Each sleeve 120 has an internal surface 124 and an external surface 125 (see figure 2 ). It also includes a portion intended to be introduced into the power device on which the connector 100 is mounted, through the shielding wall 200, as well as a portion intended to remain outside this device. Each sleeve 120 receives a electrical contact 122. In the example chosen and represented on the Figure 3 , this electrical contact 122 is a female contact. This is crimped to the stripped end of the core 402 of a cable 400 which also comprises an internal sheath 404 insulating the core 402 from a shielding sheath 406 and an external insulating sheath 408 covering itself the shielding sheath 406. The cable 400 is for example a shielded cable with a section of 16 mm 2 . The shielding sheath 406 is itself stripped on a portion to be slid and crimped between an external ferrule 410 and an internal ferrule 411, in order to press the shielding sheath 406 between two rigid elements and thus ensure electrical conduction and therefore also optimal shielding continuity. Upstream of the crimping zone on the stripped core 402, the shielding sheath 406 is itself stripped on a portion which receives an electrically conductive ferrule 410. Still upstream of the ferrule 410, the cable 400 receives a unitary wire seal 412 in elastomer comprising, on the one hand, an internal surface 414 ensuring sealing with the external insulating sheath 408 of the cable 400 and, on the other hand, an external surface 416 provided with lips intended to come into contact with and support a section of the sleeve 120 and thus ensuring sealing with the internal surface of the sleeve 120 (see figure 2 ). Still upstream of the unitary wire joint 412, a retaining ring 500, inserted on the cable 400, is introduced and clipped in the opening of a sleeve 120 intended for the insertion of the cable 400, in order to retain the unitary wire joint 412 in this sleeve 120.

Chaque manchon 120 reçoit également une bague de reprise de blindage 600 en matière électriquement conductrice (voir figure 4). Chaque bague de reprise de blindage 600 est constituée d'une section de ruban métallique enroulée autour d'un axe longitudinal parallèle à celui du manchon 120 dans lequel elle est montée. Il s'agit d'une pièce unique comportant une portion interne 602 et une portion externe 604 venue de matière avec la portion interne 602. La découpe d'une section d'un ruban à partir d'une tôle métallique et la mise en forme par enroulement de cette section sont donc particulièrement aisées et peu coûteuses comparées notamment à des procédés d'emboutissage ou de formage profond.Each sleeve 120 also receives a shielding recovery ring 600 made of electrically conductive material (see Figure 4 ). Each shielding recovery ring 600 consists of a section of metal tape wound around a longitudinal axis parallel to that of the sleeve 120 in which it is mounted. It is a single part comprising an internal portion 602 and an external portion 604 made integrally with the internal portion 602. Cutting a section of a ribbon from a metal sheet and shaping it by winding this section are therefore particularly easy and inexpensive compared in particular to deep drawing or forming processes.

La portion interne 602 de la bague de reprise de blindage 600 est située à l'intérieur du manchon 120, dans la partie de celui-ci destinée à rester à l'extérieur du dispositif sur lequel est monté le connecteur 100. La portion interne de la bague de reprise de blindage 602 est en appui sur une section de la surface interne 124 du manchon 120, distincte de la section de la surface interne 124 du manchon 120 en contact avec le joint unitaire filaire 412. La portion interne 602 de la bague de reprise de blindage 600 est électriquement connectée à la gaine de blindage 406, par l'intermédiaire de languettes élastiques internes 606 s'étendant vers l'intérieur de la section de ruban métallique enroulée et reposant elles-mêmes sur la férule 410 pour assurer un contact électrique avec celle-ci. La portion externe 604 de la bague de reprise de blindage 600 est située à l'extérieur du manchon 120 et est électriquement connectée, par l'intermédiaire de languettes élastiques externes 608, à la paroi de blindage 200. Les languettes élastiques internes 606 sont orientées de manière à faciliter l'insertion du contact 122 et de la férule 410 à travers la bague de reprise de blindage 600. Par exemple, elles s'étendent entre une extrémité fixe située du côté de l'ouverture du manchon 120 destinée à l'insertion du câble 400 et une extrémité libre située du côté du manchon 120 orienté vers le contre-connecteur 300. Les languettes élastiques externes 608 sont orientées de manière à faciliter l'insertion du connecteur 100 qui en est muni à travers une ouverture dans la paroi de blindage 200. Par exemple, elles s'étendent entre une extrémité fixe située du côté du manchon 120 orienté vers le contre-connecteur 300, vers une extrémité libre orientée du côté de l'ouverture du manchon 120 destinée à l'insertion du câble 400.The internal portion 602 of the shielding recovery ring 600 is located inside the sleeve 120, in the part thereof intended to remain outside the device on which the connector 100 is mounted. The internal portion of the shielding recovery ring 602 rests on a section of the internal surface 124 of the sleeve 120, distinct from the section of the internal surface 124 of the sleeve 120 in contact with the unitary wire seal 412. The internal portion 602 of the ring shielding recovery 600 is electrically connected to the shielding sheath 406, via internal elastic tabs 606 extending towards the interior of the section of wound metal tape and themselves resting on the ferrule 410 to ensure a electrical contact with it. The external portion 604 of the shielding recovery ring 600 is located outside the sleeve 120 and is electrically connected, via external elastic tabs 608, to the shielding wall 200. The internal elastic tabs 606 are oriented so as to facilitate the insertion of the contact 122 and the ferrule 410 through the shielding recovery ring 600. For example, they extend between a fixed end located on the side of the opening of the sleeve 120 intended for the insertion of the cable 400 and a free end located on the side of the sleeve 120 oriented towards the counter-connector 300. The external elastic tabs 608 are oriented so as to facilitate the insertion of the connector 100 which is provided with it through an opening in the wall shielding 200. For example, they extend between a fixed end located on the side of the sleeve 120 oriented towards the counter-connector 300, towards a free end oriented on the side of the opening of the sleeve 120 intended for the insertion of the cable 400.

La portion externe 604 de la bague de reprise de blindage 600 s'étend à partir d'un bord de la section de ruban métallique enroulée et passe à travers une ou plusieurs ouvertures 126 ménagées dans la paroi 128 du manchon 120.The outer portion 604 of the shielding recovery ring 600 extends from an edge of the wound section of metal tape and passes through one or more openings 126 provided in the wall 128 of the sleeve 120.

Un joint interfacial 116 est disposé dans une gorge du support 110, saillant à l'extérieur de celle-ci, entre le support 110 et la paroi de blindage 200, autour d'un ou plusieurs manchon(s) et de la portion externe 604 de la bague de reprise de blindage 600. Ce joint interfacial 116 assure donc que l'étanchéité entre le connecteur 100 et la paroi de blindage 200. Un tel joint interfacial 116 peut par exemple garantir une étanchéité sous une surpression d'un bar, lors de tests en brouillard salin pendant 1600 heures. Par ailleurs, comme le joint unitaire filaire 412 est disposé autour du câble 400, à l'intérieur du manchon 120 et de l'autre côté du contact 122 par rapport à la portion interne 602 de la bague de reprise de blindage 600, la bague de reprise de blindage 600 se trouve dans une zone étanche située entre le joint unitaire filaire 412 et le joint interfacial 116.An interfacial seal 116 is disposed in a groove of the support 110, projecting outside thereof, between the support 110 and the shielding wall 200, around one or more sleeve(s) and the external portion 604 of the shielding recovery ring 600. This interfacial seal 116 therefore ensures that the seal between the connector 100 and the shielding wall 200. Such an interfacial seal 116 can for example guarantee sealing under an overpressure of one bar, when of salt spray tests for 1600 hours. Furthermore, as the unitary wire seal 412 is arranged around the cable 400, inside the sleeve 120 and on the other side of the contact 122 relative to the internal portion 602 of the shielding recovery ring 600, the ring shielding recovery 600 is located in a sealed zone located between the unitary wire seal 412 and the interfacial seal 116.

Par ailleurs, un capot 700 est clipsé sur le support 110 afin de guider les câbles 400 à la sortie du connecteur 100 et à éviter une exposition directe des joints unitaires filaires 412 à des projections liquides.Furthermore, a cover 700 is clipped onto the support 110 in order to guide the cables 400 at the exit of the connector 100 and to avoid direct exposure of the unitary wire joints 412 to liquid projections.

L'ensemble de connecteurs décrits ci-dessus présente de nombreux avantages dont :

  • une connexion directe sur un bus-bar à travers la paroi de blindage 200 sans qu'il soit nécessaire d'avoir accès à l'intérieur du boîtier contenant ce bus-bar, avec en conséquence une maintenance facilitée ;
  • une connexion électrique assurée sans serrer les câbles 400 à l'aide de vis ; et
  • un connecteur 100 qui peut être monté à l'extrémité de câbles 400 de manière à être fourni, prêt au montage, à un client.
The set of connectors described above has many advantages including:
  • a direct connection to a bus-bar through the shielding wall 200 without it being necessary to have access to the interior of the housing containing this bus-bar, with consequently easier maintenance;
  • an electrical connection ensured without tightening the 400 cables using screws; And
  • a connector 100 which can be fitted to the end of cables 400 so as to be supplied, ready for assembly, to a customer.

Dans l'exemple décrit ci-dessus, la paroi de blindage 200 correspond à une paroi d'un dispositif incorporant le contre-connecteur 300, mais la paroi de blindage 200, dans une variante, pourrait être une paroi du contre-connecteur 300 lui-même ou plus directement encore un blindage de ce contre-connecteur 300 sous forme de tôle ou de tresse. Dans ce cas, on peut ne pas prévoir de paroi de blindage 200 entre le connecteur 100 et le contre-connecteur 300.In the example described above, the shielding wall 200 corresponds to a wall of a device incorporating the counter-connector 300, but the shielding wall 200, in a variant, could be a wall of the counter-connector 300 itself. -same or even more directly a shielding of this counter-connector 300 in the form of sheet metal or braid. In this case, it is possible not to provide a shielding wall 200 between the connector 100 and the counter-connector 300.

Dans encore une autre variante de l'invention, le connecteur 100 peut être utilisé comme passe fil, le câble traversant la paroi de blindage 200 sur laquelle bague de reprise de blindage 600 vient en contact électrique, mais le connecteur 100, utilisé comme passe fil, ne comporte pas nécessairement de contact 122, l'extrémité du câble 400, pouvant être directement serti ou soudé sur un bus bar ou un autre dispositifIn yet another variant of the invention, the connector 100 can be used as a wire pass-through, the cable passing through the shielding wall 200 on which recovery ring shielding 600 comes into electrical contact, but the connector 100, used as a wire pass-through, does not necessarily have a contact 122, the end of the cable 400 being able to be directly crimped or soldered to a bus bar or another device

Claims (10)

  1. Connector (100) suitable for being fitted on a shield wall (200), the connector (100) comprising
    - a sleeve (120) made of electrically insulating plastic material and having a wall (128) with an inner surface (124) and an outer surface (125), the sleeve (120) being moulded in a single piece with a support (110),
    - a shield contact ring (600) made of electrically conductive material, fitted in the sleeve (120), the shield contact ring (600) being formed by a section of metal strip wound around a longitudinal axis parallel to that of the sleeve (120) in which it is fitted and having
    ∘ an inner portion (602) parallel to the longitudinal axis of the sleeve (120) and located inside the sleeve (120), bearing on a first section of the inner surface (124) of the wall (128) of the sleeve (120), and intended to be in electrical contact with a ferrule (410) placed around the shielding sheath (406) of an electrical cable (400);
    ∘ an outer portion (604) located outside the sleeve (120), made in one piece with the inner portion (602) and intended to be linked electrically to a shield wall (200),
    - characterized by the fact that the outer portion (604) extends the inner portion (602), through at least one opening (126) formed in the wall of the sleeve (120), parallel to the longitudinal axis of the sleeve (120).
  2. Connector (100) according to Claim 1, wherein the outer portion (604) extends from one edge of the wound metal strip section and passes through the opening (126) formed in the wall of the sleeve.
  3. Connector (100) according to either of the preceding claims, wherein the support (110) made of electrically insulating material extending radially around and outside the sleeve (120) and the connector (100) also has an interface gasket (116) placed on the support (110), around the sleeve (120) and the outer portion (604).
  4. Connector (100) according to one of the preceding claims, wherein the shield contact ring (600) has inner resilient tongues (606) for establishing electrical contact with the ferrule (410).
  5. Connector (100) according to Claim 4, wherein the inner resilient tongues (606) are oriented so as to facilitate the insertion of the ferrule (410) through the shield contact ring (600) and extend from a fixed end located on the side of the opening of the sleeve (120) that is intended for the insertion of the cable (400) to a free end.
  6. Connector (100) according to one of the preceding claims, wherein the shield contact ring (600) has outer resilient tongues (608) located outside the sleeve (120).
  7. Connector (100) according to Claim 6, wherein the outer resilient tongues (608) are oriented so as to facilitate the insertion of the connector (100) that is equipped with these tongues through an opening in the shield wall (200) and extend from a fixed end to a free end oriented on the side of the opening of the sleeve (120) that is intended for the insertion of the cable (400).
  8. Set of connectors comprising a connector (100) according to one of Claims 1 to 7, and a counter-connector (300),
    the connector (100) having
    - at least one first contact (122) housed in the sleeve (120), and attached to the end of a cable (400) equipped with a shielding sheath (406),
    and the counter-connector (300) having at least one second contact (310) intended to be connected to the first contact (122),
    wherein
    - the inner portion (602) of the shield contact ring (600) is electrically linked to the shielding sheath (406), and
    - the outer portion (604) is electrically linked to the shield wall (200).
  9. Set of connectors according to Claim 8, fitted on a shield wall (200), wherein the support (110) made of electrically insulating material extends radially around and outside the sleeve (120) and is attached to the shield wall (200), and wherein an interface gasket (116) is placed between the support (110) and the shield wall (200), around the sleeve (120) and the outer portion (604).
  10. Set of connectors according to Claim 8 or 9, wherein a cable gasket (412) is placed around the cable (400), inside the sleeve (120) and on the other side of the first contact (122) from the inner portion (602) of the shield contact ring (600) and the shield contact ring (600) bears on a first section of the sleeve (120) and the cable gasket (412) bears on a second section of the sleeve (120), which is distinct from the first section of the sleeve (120).
EP14809600.1A 2013-11-12 2014-11-06 Electric connector with shield contact Active EP3069413B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1361008A FR3013157B1 (en) 2013-11-12 2013-11-12 ELECTRICAL CONNECTOR WITH ARMOR RECOVERY
PCT/EP2014/073948 WO2015071171A1 (en) 2013-11-12 2014-11-06 Electric connector with shield contact

Publications (2)

Publication Number Publication Date
EP3069413A1 EP3069413A1 (en) 2016-09-21
EP3069413B1 true EP3069413B1 (en) 2023-10-04

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EP14809600.1A Active EP3069413B1 (en) 2013-11-12 2014-11-06 Electric connector with shield contact

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US (1) US10103496B2 (en)
EP (1) EP3069413B1 (en)
CN (1) CN105814742A (en)
FR (1) FR3013157B1 (en)
WO (1) WO2015071171A1 (en)

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FR3064121B1 (en) * 2017-03-17 2021-07-16 Delphi Int Operations Luxembourg Sarl SET OF CONNECTORS AND METHOD FOR ASSEMBLING THIS SET OF CONNECTORS
CN108461962B (en) * 2017-12-30 2024-02-20 珠海市业成轨道交通设备科技有限公司 Hundred mega connector module of intercity motor train unit
FR3079077B1 (en) * 2018-03-16 2020-09-18 Raydiall ELECTRICAL CONNECTION ASSEMBLY WITH AN ELECTRICAL CONNECTOR MOUNTED AND MOLDED ON AN ELECTRIC CABLE, ASSOCIATED REALIZATION PROCESS
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Also Published As

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FR3013157A1 (en) 2015-05-15
WO2015071171A1 (en) 2015-05-21
US10103496B2 (en) 2018-10-16
US20160268738A1 (en) 2016-09-15
EP3069413A1 (en) 2016-09-21
FR3013157B1 (en) 2015-10-30
CN105814742A (en) 2016-07-27

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