EP3477789B1 - Shielded connector adaptor, shielded connector and method for mounting a shielded connector - Google Patents

Shielded connector adaptor, shielded connector and method for mounting a shielded connector Download PDF

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Publication number
EP3477789B1
EP3477789B1 EP18201307.8A EP18201307A EP3477789B1 EP 3477789 B1 EP3477789 B1 EP 3477789B1 EP 18201307 A EP18201307 A EP 18201307A EP 3477789 B1 EP3477789 B1 EP 3477789B1
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EP
European Patent Office
Prior art keywords
shielding
electrical
connector
adaptor
braid
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.)
Active
Application number
EP18201307.8A
Other languages
German (de)
French (fr)
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EP3477789A1 (en
Inventor
Erwan Guillanton
Aymeric PEROT
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Aptiv Technologies Ltd
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Aptiv Technologies Ltd
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Publication of EP3477789A1 publication Critical patent/EP3477789A1/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
    • H01R13/648—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
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • 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
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter

Definitions

  • the invention relates to the field of motor vehicles. And in particular, but not exclusively, the fields of electrical wiring for motor vehicles and electrical connectors for motor vehicles.
  • the invention relates to the junction and the continuity of the electromagnetic shielding between an electromagnetically shielded connector and an electric cable or a bundle of electric cables.
  • the invention also relates to an assembly method making it possible to achieve this electrical continuity.
  • the strong currents transmitted in the wiring networks can be at the origin of an emission of electromagnetic waves which can be disruptive for electronic devices. present on board the vehicle or in the vicinity of the vehicle. Also, it is necessary, or at least desirable, to eliminate or at least reduce these electromagnetic disturbances. To this end, it is often provided in the prior art to surround with an electromagnetic shield, the cables and the connectors connected to these cables. For more efficiency, the junction itself, between the cables and the connectors constituting the harnesses or power harnesses, must also be shielded.
  • junctions comprising a shielding braid forming an independent sleeve and ensuring electrical continuity between a shielding sheet surrounding the housing of a connector and a shielding braid integrated into each cable.
  • devices making it possible to combine the production of electromagnetic shielding and the sealing of the junction between individually shielded cables and a connector.
  • An aim of the invention is to provide a shielding solution compatible with the two technologies mentioned in the previous paragraph.
  • a clamp designates any element making it possible to maintain a shielding braid, by at least partial encirclement thereof, in order to maintain it mechanically on the adapter and to press it at least locally on a conductive area of the shielding of this adapter; thus a clamp can be formed of a heat-shrinkable sleeve, a band, an adjustable collar with worm screw, spring, or yoke, etc.
  • the invention relates to an electrical connector comprising a housing of electrically insulating material and a shielding envelope at least partially covering at least certain surfaces of the housing, this connector comprising at least one adapter as mentioned above, mounted on the case and the shielding of which is in electrical continuity with the shielding casing of the connector.
  • this connector comprises a conductive braid at least partially covering at least one cable connected to a contact housed in the connector housing, this conductive braid being in electrical continuity with the external surface of an adapter.
  • the invention relates to a method for mounting a connector according to claim 13.
  • the invention relates to a method of mounting a connector according to claim 14.
  • the adapter 1 comprises a shield 2 made from a cut and stamped metal sheet.
  • the shielding 2 comprises a first 3 and a second 4 shielding elements.
  • the first shielding element 3 comprises a front face 5 essentially perpendicular to a longitudinal axis L. In this front face 5 is formed a circular opening 6. Internal elastic tongues 7 extend essentially parallel to the longitudinal axis L, around the circular opening 6, from the front face 5 and towards the interior of the first shielding element 3.
  • the first shielding element 3 comprises an upper portion 8 and a lower portion 9.
  • the upper portion 8 has an outer surface 10 of essentially semi-cylindrical shape.
  • External elastic tongues 11 extend essentially parallel to the longitudinal axis L, perpendicular to the front face 5, from this front face 5 and towards the rear of the first shielding element 3.
  • the external elastic tongues 11 are essentially flush with the outer surface 10 so as to be able to establish, as will be explained later, an electrical contact with a conductive braid 12 in the form of a sleeve.
  • the lower portion 9 comprises three faces essentially perpendicular to the front face 5 and extending parallel to the longitudinal axis L: two side faces 13 and a lower face 14, essentially perpendicular to the side faces 13. These three faces 13, 14 form also elastic tongues extending essentially parallel to the longitudinal axis L, perpendicular to the front face 5.
  • the two side faces 13 each have a cutout 15 forming, as will be explained later, means for mounting the adapter 1 on a housing 16 of an electrical connector 17.
  • the ends of the external elastic tongues 11 and of the faces 13, 14 of the lower portion 9 comprise curved ends 18 to form convex zones 19 intended to come to bear and in contact with a shielding casing 20 mounted on the connector housing 16.
  • the second shielding element 4 essentially comprises a tubular portion 21, cylindrical of revolution about the longitudinal axis L. One of the ends of this tubular portion 21 is extended by a ring 22 extending radially outwardly of the tubular portion 21, perpendicular to the longitudinal axis L.
  • the tubular portion 21 also comprises, near the ring 22, four holes 23 distributed in pairs at 90 ° from each other.
  • the second shielding element 4 is mounted in the first shielding element 3 by passing the tubular portion 21 through the circular opening 6 until the ring 22 is in contact with the front face 5.
  • the tubular portion 21 and the circular opening 6 open a passage adapted to be traversed, along the longitudinal axis L, by an electric cable 24.
  • the internal tongues 7 bear against the external surface 25 of the tubular portion 23, so as to establish a electrical contact with it.
  • the internal and external surfaces 10 of the shielding 2 are thus in electrical continuity.
  • a support 26 of insulating plastic material is then molded onto the shielding 2 thus obtained after mounting the first 3 and second 4 shielding elements with one another.
  • lugs 27 are formed near the front face 5, between the external elastic tongues 11, as well as between the side faces 13 and the lower face 14 of the lower part 9 of the first shielding element.
  • the inner and outer surfaces 25 of the tubular portion 21 are lined with a layer 28 of plastic material of substantially uniform thickness.
  • the overmolded plastic material also penetrates into the holes 23 for better anchoring of the support 26 on the shielding 2 and to strengthen the retention of the first 3 and second 4 shielding elements with one another.
  • the layer 28 of plastic material inside the tubular portion 21 forms a cylindrical cavity of revolution around the longitudinal axis L in which can optionally be inserted a unitary wire seal 29 ("Single Wire Seal” or “SWS” in English).
  • the layer 28 of plastic material outside the tubular portion 21 forms a circular notch 30 around the longitudinal axis L in which can be inserted an interfacial seal 31 (see figure 8A ).
  • the curved ends 18 of the external elastic tongues 11 and of the lateral 13 and lower faces 14 of the lower portion 9, as well as the free end of the tubular portion 21 are not covered with plastic, in order to leave visible areas of contact. electric.
  • the connector 17 is also covered with a shielding envelope 20 made from three parts 20a, 20b, 20c, each respectively formed by cutting and stamping a conductive metal sheet. These three parts 20a, 20b, 20c comprise edges provided with resilient tongues 36 adapted to establish electrical contact between them or with the shielding 2 of the adapter 1.
  • the shielding casing 20 essentially covers all of the external surfaces of the device. housing 16 and its cover 32.
  • Connector 16 has six adapters 1, three on an upper row and three on a lower row.
  • the lower faces 14 of the shields 2 of the adapters 1 of the upper row are opposite those of the adapters 1 of the lower row.
  • the lower faces 14 of two first superimposed shielding elements 3 that is to say one, placed in the upper row, being located above on top of another, located in the lower row) are in electrical contact with each other.
  • the housing 16 has bases 37 extending longitudinally, from a front face 38 (see figures 6 and 7 ). These bases 37 each respectively comprise a semi-cylindrical part adapted to be introduced into an upper part 8 of the adapter 1. These bases 37 also each respectively comprise a part essentially complementary to the lower part 9 of the adapter 1 and adapted to be introduced. in the latter.
  • Each base 37 comprises on its outer surface two diametrically opposed pins 39 adapted to each cooperate respectively with a cutout 15 of the first shielding element 3 in order to fix the corresponding adapter 1 on the housing 16.
  • the adapters 1 When mounting the electrical connector 17, the adapters 1 are thus mounted and fixed on the bases 37.
  • the shielding casing 20 having been previously mounted on the housing 16 and its cover 32, the curved ends 18 of the outer tabs 11 of the shielding 2 of each adapter 1 come to rest on the tabs 36 of the shielding casing 20 and thus place the adapters 1 in electrical continuity with the shielding casing 20.
  • each electric cable 24 comprises a braid of electrical shielding 40, a first electrically insulating sheath 41 being interposed between a conductive core 42 and the electrical shielding braid 40 (see figure 8B ).
  • the conductive core 42 is stripped on an end portion to establish electrical continuity with a contact 35 and that the electrical shielding braid 40 is stripped over a portion to establish electrical continuity with the adapter 1.
  • a ferrule 43 is interposed between this stripped portion of the portion of the shielding braid 40 and the internal surface of the tubular portion 21 of the second element 4 of the adapter 1.
  • the ferrule 43 thus makes it possible to establish an indirect electrical junction between this stripped portion of the portion of the shielding braid 40 and the internal surface of the tubular portion 21 of the second element 4 of the adapter 1.
  • a second electrically insulating sheath 44 covers the electrical shielding braid 40, beyond its stripped portion, away from its free end.
  • a wired unitary gasket 29 is interposed between the second insulating sheath 44 and the internal surface of the layer 28 of plastic material lining the tubular portion 21.
  • an interfacial gasket 31 is inserted between the base 37 of the housing 16 and the external surface. of the layer 28 of plastic material lining the tubular portion 21. In this way, the interface between each contact cell 36 35 and the cable 24 connected to this contact 35 is individually sealed, while maintaining electrical continuity ensuring continuity of shielding between each cable 24 and the connector 17. This makes it possible to screen any electromagnetic waves radiating from the cable portions 24 or from the contacts 35 housed in the connector 17.
  • each electrical cable 24 comprises a conductive core 42 and a first electrically insulating sheath 41 within which the conductive core 42 passes (see figure 9B ). It will be noted that the conductive core 42 is stripped on an end portion to establish electrical continuity with a contact 35.
  • a shielding braid 12 in the form of a sleeve envelops the ends of two cables 24, outside the connector 17, as well as the two adapters 1 corresponding to these two cables 24.
  • a clamp 45 maintains this shielding braid 12 on the outer surfaces 10 of the adapters 1. More specifically, the clamp 45 presses the shielding braid over at least one area of the protruding or flush tabs 11 on the outer surface 10. the clamp 45 may also optionally help to hold these tabs 11 in support and in electrical contact with the shielding casing 20 of the connector 17.
  • the pins 27 form with these external surfaces 10 areas suitable for retaining the clamp 45. The pins 27 thus contribute to maintaining the shielding braid 12 on these. external surfaces 10 by blocking the clamp 45 in the event of traction on it.
  • a wired unitary seal 29 is interposed between the first insulating sheath 41 and the internal surface of the layer 28 of plastic material lining the tubular portion 21. Furthermore, an interfacial seal 31 is inserted between the base 37 of the housing 16 and the external surface. of the layer 28 of plastic material covering the tubular portion 21.
  • the interface between each contact cell 36 35 and the cable 24 connected to this contact 35 is made individually hermetic, while retaining an electrical continuity ensuring a shielding continuity between each cable 24 and the connector 17. This makes it possible to screen any electromagnetic waves radiating from the cable portions 24 or from the contacts 35 housed in the connector 17.
  • the internal surface of the passage formed along the longitudinal axis L of the adapter 1 may be partially lined, or not be lined, with insulating plastic material.
  • a direct electrical contact (without ferrule) can be made between the shielding 2 of the adapter 1 and the braid of shielding 40 integrated into the cable 24.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

L'invention concerne le domaine des véhicules automobiles. Et notamment, mais pas exclusivement, les domaines du câblage électrique pour véhicules automobiles et des connecteurs électriques pour véhicules automobiles.The invention relates to the field of motor vehicles. And in particular, but not exclusively, the fields of electrical wiring for motor vehicles and electrical connectors for motor vehicles.

Plus particulièrement, l'invention concerne la jonction et la continuité du blindage électro-magnétique entre un connecteur blindé électromagnétiquement et un câble électrique ou un faisceau de câbles électriques. L'invention concerne également un procédé de montage permettant de réaliser cette continuité électrique.More particularly, the invention relates to the junction and the continuity of the electromagnetic shielding between an electromagnetically shielded connector and an electric cable or a bundle of electric cables. The invention also relates to an assembly method making it possible to achieve this electrical continuity.

Dans le domaine des véhicules automobiles et notamment des véhicules électriques, hybrides ou hybrides rechargeables, les courants forts transmis dans les réseaux de câblage peuvent être à l'origine d'une émission d'ondes électromagnétiques qui peuvent s'avérer perturbantes pour des dispositifs électroniques présents à bord du véhicule ou dans l'environnement du véhicule. Aussi, est-il nécessaire, ou du moins souhaitable, d'éliminer ou au moins réduire ces perturbations électromagnétiques. A cette fin, il est souvent prévu dans l'art antérieur d'entourer d'un blindage électromagnétique, les câbles et les connecteurs reliés à ces câbles. Pour plus d'efficacité, la jonction elle-même, entre les câbles et les connecteurs constitutifs des faisceaux ou harnais de puissance, doit être également blindée. Ainsi, on connait par le document EP2517324 , des jonctions comportant une tresse de blindage formant un manchon indépendant et assurant une continuité électrique entre une tôle de blindage entourant le boîtier d'un connecteur et une tresse de blindage intégrée à chaque câble. On connait aussi, grâce aux document WO2011045328A2 et FR2981210A1 , des dispositifs permettant de combiner la réalisation un blindage électromagnétique et l'étanchéité de la jonction entre des câbles individuellement blindés et un connecteur.In the field of motor vehicles and in particular of electric, hybrid or rechargeable hybrid vehicles, the strong currents transmitted in the wiring networks can be at the origin of an emission of electromagnetic waves which can be disruptive for electronic devices. present on board the vehicle or in the vicinity of the vehicle. Also, it is necessary, or at least desirable, to eliminate or at least reduce these electromagnetic disturbances. To this end, it is often provided in the prior art to surround with an electromagnetic shield, the cables and the connectors connected to these cables. For more efficiency, the junction itself, between the cables and the connectors constituting the harnesses or power harnesses, must also be shielded. Thus, we know from the document EP2517324 , junctions comprising a shielding braid forming an independent sleeve and ensuring electrical continuity between a shielding sheet surrounding the housing of a connector and a shielding braid integrated into each cable. We also know, thanks to the documents WO2011045328A2 and FR2981210A1 , devices making it possible to combine the production of electromagnetic shielding and the sealing of the junction between individually shielded cables and a connector.

Cependant, alors que certains constructeurs de véhicules automobiles privilégient un blindage de la jonction, entre le blindage du connecteur et la tresse de blindage intégrée à chaque câble, à l'aide d'une tresse de blindage en forme de manchon indépendant, d'autres préfèrent établir une continuité électrique entre le blindage du connecteur et la tresse de blindage intégrée à chaque câble (sans utiliser de tresse de blindage en forme de manchon).However, while some automotive manufacturers prefer shielding the junction, between the shielding of the connector and the shield braid integrated in each cable, using a shield braid in the form of an independent sleeve, others prefer to establish an electrical continuity between the shield of the connector and the braid shield integrated in each cable ( without using a sleeve-shaped shielding braid).

Un but de l'invention est de fournir une solution de blindage compatible avec les deux technologies mentionnées au paragraphe précédent.An aim of the invention is to provide a shielding solution compatible with the two technologies mentioned in the previous paragraph.

Ce but est au moins partiellement atteint grâce à un adaptateur de blindage électrique, pour connecteur électrique muni d'une enveloppe de blindage, cet adaptateur comportant :

  • des moyens pour monter l'adaptateur sur un boîtier de connecteur électrique,
  • un support en matière plastique isolante,
  • un passage adapté pour être traversé, selon un axe longitudinal, par un câble électrique qui comprend une âme conductrice et au moins une première gaine électriquement isolante au sein de laquelle passe l'âme conductrice,
  • un blindage en tôle métallique, ce blindage comprenant une surface interne s'étendant au moins partiellement dans le passage, et une surface externe électriquement conductrice adaptée pour établir une jonction électrique avec l'enveloppe de blindage du connecteur, ces surfaces interne et externe étant en continuité électrique, ce blindage permettant d'établir une continuité électrique entre la surface externe et l'un des éléments compris dans la liste suivante : une tresse de blindage en forme de manchon indépendant recouvrant au moins partiellement un câble électrique, cette tresse de blindage étant destinée à être maintenue sur la surface externe de l'adaptateur, et une tresse de blindage intégrée à un câble électrique traversant le passage et destiné à être relié au connecteur électrique.
This goal is at least partially achieved by means of an electrical shielding adapter, for an electrical connector provided with a shielding envelope, this adapter comprising:
  • means for mounting the adapter on an electrical connector housing,
  • an insulating plastic support,
  • a passage adapted to be traversed, along a longitudinal axis, by an electric cable which comprises a conductive core and at least one first electrically insulating sheath within which the conductive core passes,
  • a sheet metal shield, this shield comprising an inner surface extending at least partially into the passage, and an electrically conductive outer surface adapted to establish an electrical junction with the shielding envelope of the connector, these inner and outer surfaces being in electrical continuity, this shielding making it possible to establish electrical continuity between the external surface and one of the elements included in the following list: a shielding braid in the form of an independent sleeve covering at least partially an electric cable, this shielding braid being intended to be maintained on the external surface of the adapter, and a shielding braid integrated into an electrical cable passing through the passage and intended to be connected to the electrical connector.

Ainsi, grâce à cet adaptateur, il est possible d'établir une continuité électrique entre la surface externe, elle-même reliée électriquement à l'enveloppe de blindage du connecteur.

  • soit avec une tresse de blindage en forme de manchon indépendant et retenue sur cette surface externe grâce à un collier de serrage,
  • soit avec la tresse de blindage d'un câble électrique traversant le passage, directement (par exemple, si le diamètre du câble est adapté et/ou si la surface interne comporte des languettes flexibles adaptées pour venir au contact de la tresse intégrée au câble), ou indirectement à l'aide d'une férule conductrice (comme ce sera expliqué plus loin).
Thus, thanks to this adapter, it is possible to establish electrical continuity between the external surface, itself electrically connected to the shielding envelope of the connector.
  • either with a shielding braid in the form of an independent sleeve and retained on this external surface by means of a clamp,
  • either with the shielding braid of an electric cable passing through the passage, directly (for example, if the diameter of the cable is suitable and / or if the internal surface has flexible tabs adapted to come into contact with the braid integrated into the cable) , or indirectly using a conductive ferrule (as will be explained later).

Dans ce texte l'expression collier de serrage désigne n'importe quel élément permettant de maintenir une tresse de blindage, par encerclement au moins partiel de celle-ci, afin de la maintenir mécaniquement sur l'adaptateur et pour la presser au moins localement sur une zone conductrice du blindage de cet adaptateur ; ainsi un collier de serrage peut être formé d'un manchon thermo-rétractable, d'une frette, d'un collier réglable à vis sans fin, à ressort, ou à étrier, etc.In this text the expression clamp designates any element making it possible to maintain a shielding braid, by at least partial encirclement thereof, in order to maintain it mechanically on the adapter and to press it at least locally on a conductive area of the shielding of this adapter; thus a clamp can be formed of a heat-shrinkable sleeve, a band, an adjustable collar with worm screw, spring, or yoke, etc.

Cet adaptateur comporte éventuellement l'une et/ou l'autre des caractéristiques suivantes considérées indépendamment l'une de l'autre ou en combinaison d'une ou plusieurs autres :

  • il comporte un joint d'étanchéité interfacial adapté pour être intercalé entre le support et le boîtier du connecteur ;
  • il comprend un joint d'étanchéité unitaire filaire, inséré dans le passage et adapté pour être intercalé entre le câble électrique et le support ;
  • il comporte des languettes flexibles adaptées pour établir un contact électrique avec l'enveloppe de blindage ;
  • le blindage comporte un premier et un deuxième éléments, le premier élément étant adapté pour être en contact électrique avec l'enveloppe de blindage et avec le deuxième élément, le deuxième élément comprenant une portion tubulaire cylindrique s'étendant selon l'axe longitudinal ;
  • il comporte des languettes flexibles saillantes ou affleurantes sur la surface externe et adaptées pour établir un contact électrique avec une tresse conductrice recouvrant au moins partiellement au moins un câble ;
  • le passage est adapté pour recevoir un câble électrique comprenant en outre une tresse de blindage électrique, la première gaine électriquement isolante étant intercalée entre l'âme conductrice et cette tresse de blindage électrique sur au moins une partie de la longueur du câble électrique, et une deuxième gaine électriquement isolante recouvrant au moins partiellement cette tresse de blindage électrique ;
  • le blindage comporte une surface interne électriquement conductrice adaptée pour établir une jonction électrique directe, ou indirecte par l'intermédiaire d'une férule, avec la tresse de blindage du câble.
This adapter optionally includes one and / or other of the following characteristics considered independently of one another or in combination of one or more others:
  • it comprises an interfacial seal adapted to be interposed between the support and the connector housing;
  • it comprises a unitary wired seal, inserted in the passage and adapted to be interposed between the electric cable and the support;
  • it has flexible tabs adapted to establish electrical contact with the shielding envelope;
  • the shielding comprises a first and a second element, the first element being adapted to be in electrical contact with the shielding envelope and with the second element, the second element comprising a cylindrical tubular portion extending along the longitudinal axis;
  • it comprises flexible tabs projecting or flush on the outer surface and adapted to establish electrical contact with a conductive braid at least partially covering at least one cable;
  • the passage is adapted to receive an electric cable further comprising an electric shielding braid, the first electrically insulating sheath being interposed between the conductive core and this electric shielding braid over at least part of the length of the electric cable, and a second electrically insulating sheath at least partially covering this electrical shielding braid;
  • the shield has an electrically conductive internal surface adapted to establish a direct electrical junction, or indirect via a ferrule, with the shielding braid of the cable.

Selon un autre aspect l'invention concerne un connecteur électrique comprenant un boîtier en matière électriquement isolante et une enveloppe de blindage recouvrant au moins partiellement au moins certaines surfaces du boîtier, ce connecteur comportant au moins un adaptateur tel que mentionné ci-dessus, monté sur le boîtier et dont le blindage est en continuité électrique avec l'enveloppe de blindage du connecteur.According to another aspect, the invention relates to an electrical connector comprising a housing of electrically insulating material and a shielding envelope at least partially covering at least certain surfaces of the housing, this connector comprising at least one adapter as mentioned above, mounted on the case and the shielding of which is in electrical continuity with the shielding casing of the connector.

Eventuellement, ce connecteur comporte une tresse conductrice recouvrant au moins partiellement au moins un câble relié à un contact logé dans le boîtier du connecteur, cette tresse conductrice étant en continuité électrique avec la surface externe d'un adaptateur.Optionally, this connector comprises a conductive braid at least partially covering at least one cable connected to a contact housed in the connector housing, this conductive braid being in electrical continuity with the external surface of an adapter.

Selon un autre aspect l'invention concerne un procédé de montage d'un connecteur selon la revendication 13.According to another aspect, the invention relates to a method for mounting a connector according to claim 13.

Alternativement, l'invention concerne un procédé de montage d'un connecteur selon la revendication 14.Alternatively, the invention relates to a method of mounting a connector according to claim 14.

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 :

  • les figures 1 et 2 représentent schématiquement en perspective un exemple de mode de réalisation d'un adaptateur selon l'invention, vu respectivement sous deux angles différents, à 180° l'un de l'autre ;
  • la figure 3 représente schématiquement en perspective les éléments constitutifs du blindage de l'adaptateur représenté sur les figures 1 et 2 ;
  • la figure 4 représente schématiquement en perspective les éléments constitutifs du blindage de l'adaptateur représenté sur les figures 1, 2 et 3, ceux-ci ayant été assemblés ;
  • la figure 5 représente schématiquement en perspective un exemple de connecteur selon l'invention, muni d'adaptateurs tels que celui représenté sur les figures 1 et 2 ;
  • les figures 6 et 7, représentent schématiquement en perspective et de manière éclatée le connecteur de la figure 5, équipé respectivement de câbles à blindage intégré ou de câbles simples (sans blindage) ; et
  • les figures 8A et 9A représentent schématiquement en coupe longitudinale, le connecteur avec les montages illustrés respectivement par les figures 6 et 7 ; et les figures 8B et 9B représentent schématiquement en élévation latérale, un exemple de câble destiné à être relié selon le montage illustré, respectivement, par la figure 6 ou la figure 7.
Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows and on the appended drawings. On these drawings:
  • the figures 1 and 2 schematically show in perspective an exemplary embodiment of an adapter according to the invention, seen respectively from two different angles, at 180 ° to each other;
  • the figure 3 schematically shows in perspective the constituent elements of the shielding of the adapter shown in the figures 1 and 2 ;
  • the figure 4 schematically shows in perspective the constituent elements of the shielding of the adapter shown in the figures 1, 2 and 3 , these having been assembled;
  • the figure 5 schematically shows in perspective an example of a connector according to the invention, provided with adapters such as the one shown in the figures 1 and 2 ;
  • the figures 6 and 7 , schematically represent in perspective and exploded manner the connector of the figure 5 , respectively equipped with cables with integrated shielding or single cables (without shielding); and
  • the figures 8A and 9A schematically represent in longitudinal section, the connector with the assemblies illustrated respectively by the figures 6 and 7 ; and the figures 8B and 9B schematically show in side elevation, an example of a cable intended to be connected according to the assembly illustrated, respectively, by the figure 6 or the figure 7 .

Sur les figures, les mêmes références désignent des éléments identiques ou similaires.In the figures, the same references designate identical or similar elements.

Un exemple de mode de réalisation d'un adaptateur 1 conforme à l'invention est décrit ci-dessous en relation avec les figures 1 à 4.An exemplary embodiment of an adapter 1 according to the invention is described below in relation to the figures 1 to 4 .

Selon cet exemple, l'adaptateur 1 comporte un blindage 2 réalisé à partir d'une tôle métallique découpée et emboutie. Comme représenté sur la figure 3, le blindage 2 comporte un premier 3 et un deuxième 4 éléments de blindage.According to this example, the adapter 1 comprises a shield 2 made from a cut and stamped metal sheet. As shown on the figure 3 , the shielding 2 comprises a first 3 and a second 4 shielding elements.

Le premier élément de blindage 3 comporte une face avant 5 essentiellement perpendiculaire à un axe longitudinal L. Dans cette face avant 5 est ménagée une ouverture circulaire 6. Des languettes élastiques internes 7 s'étendent essentiellement parallèlement à l'axe longitudinal L, autour de l'ouverture circulaire 6, à partir de la face avant 5 et vers l'intérieur du premier élément de blindage 3. Le premier élément de blindage 3 comporte une portion supérieure 8 et une portion inférieure 9. La portion supérieure 8 présente une surface externe 10 de forme essentiellement hémicylindrique. Des languettes élastiques externes 11 s'étendent essentiellement parallèlement à l'axe longitudinal L, perpendiculairement à la face avant 5, à partir de cette face avant 5 et vers l'arrière du premier élément de blindage 3. Les languettes élastiques externes 11 sont essentiellement affleurantes sur la surface externe 10 de manière à pouvoir établir, comme ce sera expliqué plus loin, un contact électrique avec une tresse conductrice 12 en forme de manchon.The first shielding element 3 comprises a front face 5 essentially perpendicular to a longitudinal axis L. In this front face 5 is formed a circular opening 6. Internal elastic tongues 7 extend essentially parallel to the longitudinal axis L, around the circular opening 6, from the front face 5 and towards the interior of the first shielding element 3. The first shielding element 3 comprises an upper portion 8 and a lower portion 9. The upper portion 8 has an outer surface 10 of essentially semi-cylindrical shape. External elastic tongues 11 extend essentially parallel to the longitudinal axis L, perpendicular to the front face 5, from this front face 5 and towards the rear of the first shielding element 3. The external elastic tongues 11 are essentially flush with the outer surface 10 so as to be able to establish, as will be explained later, an electrical contact with a conductive braid 12 in the form of a sleeve.

La portion inférieure 9 comporte trois faces essentiellement perpendiculaires à la face avant 5 et s'étendant parallèlement à l'axe longitudinal L : deux faces latérales 13 et une face inférieure 14, essentiellement perpendiculaire aux faces latérales 13. Ces trois faces 13, 14 forment également des languettes élastiques s'étendant essentiellement parallèlement à l'axe longitudinal L, perpendiculairement à la face avant 5. Les deux faces latérales 13 comportent chacune une découpe 15 formant, comme ce sera expliqué plus loin, des moyens pour monter l'adaptateur 1 sur un boîtier 16 de connecteur électrique 17. Les extrémités des languettes élastiques externes 11 et des faces 13, 14 de la portion inférieure 9 comportent des extrémités recourbées 18 pour former des zones convexes 19 destinées à venir en appui et en contact avec une enveloppe de blindage 20 monté sur le boîtier 16 de connecteur.The lower portion 9 comprises three faces essentially perpendicular to the front face 5 and extending parallel to the longitudinal axis L: two side faces 13 and a lower face 14, essentially perpendicular to the side faces 13. These three faces 13, 14 form also elastic tongues extending essentially parallel to the longitudinal axis L, perpendicular to the front face 5. The two side faces 13 each have a cutout 15 forming, as will be explained later, means for mounting the adapter 1 on a housing 16 of an electrical connector 17. The ends of the external elastic tongues 11 and of the faces 13, 14 of the lower portion 9 comprise curved ends 18 to form convex zones 19 intended to come to bear and in contact with a shielding casing 20 mounted on the connector housing 16.

Le deuxième élément de blindage 4 comporte essentiellement une portion tubulaire 21, cylindrique de révolution autour de l'axe longitudinal L. L'une des extrémités de cette portion tubulaire 21 se prolonge par une couronne 22 s'étendant radialement vers l'extérieur de la portion tubulaire 21, perpendiculairement à l'axe longitudinal L. La portion tubulaire 21 comporte également, à proximité de la couronne 22, quatre trous 23 répartis deux à deux à 90° les uns des autres.The second shielding element 4 essentially comprises a tubular portion 21, cylindrical of revolution about the longitudinal axis L. One of the ends of this tubular portion 21 is extended by a ring 22 extending radially outwardly of the tubular portion 21, perpendicular to the longitudinal axis L. The tubular portion 21 also comprises, near the ring 22, four holes 23 distributed in pairs at 90 ° from each other.

Comme représenté sur la figure 4, le deuxième élément de blindage 4 est monté dans le premier élément de blindage 3 en faisant passer la portion tubulaire 21 par l'ouverture circulaire 6 jusqu'à ce que la couronne 22 soit en contact avec la face avant 5. La portion tubulaire 21 et l'ouverture circulaire 6 ouvrent un passage adapté pour être traversé, selon l'axe longitudinal L, par un câble électrique 24. Les languettes internes 7 viennent en appui sur la surface extérieure 25 de la portion tubulaire 23, de manière à établir un contact électrique avec celle-ci. Les surfaces interne et externe 10 du blindage 2 sont ainsi en continuité électrique.As shown on the figure 4 , the second shielding element 4 is mounted in the first shielding element 3 by passing the tubular portion 21 through the circular opening 6 until the ring 22 is in contact with the front face 5. The tubular portion 21 and the circular opening 6 open a passage adapted to be traversed, along the longitudinal axis L, by an electric cable 24. The internal tongues 7 bear against the external surface 25 of the tubular portion 23, so as to establish a electrical contact with it. The internal and external surfaces 10 of the shielding 2 are thus in electrical continuity.

Un support 26 en matière plastique isolante est ensuite surmoulé sur le blindage 2 ainsi obtenu après le montage des premier 3 et deuxième 4 éléments de blindage l'un avec l'autre. Lors de cette opération de surmoulage, des ergots 27 sont formés à proximité de la face avant 5, entre des languettes élastiques externes 11, ainsi qu'entre les faces latérales 13 et la face inférieure 14 de la partie inférieure 9 du premier élément de blindage 3.A support 26 of insulating plastic material is then molded onto the shielding 2 thus obtained after mounting the first 3 and second 4 shielding elements with one another. During this overmolding operation, lugs 27 are formed near the front face 5, between the external elastic tongues 11, as well as between the side faces 13 and the lower face 14 of the lower part 9 of the first shielding element. 3.

Lors de cette opération de surmoulage, les surfaces intérieure et extérieure 25 de la portion tubulaire 21 sont tapissées d'une couche 28 de matière plastique d'une épaisseur essentiellement uniforme. La matière plastique surmoulée pénètre également dans les trous 23 pour un meilleur ancrage du support 26 sur le blindage 2 et pour renforcer le maintien des premier 3 et deuxième 4 éléments de blindage l'un avec l'autre. La couche 28 de matière plastique à l'intérieur de la portion tubulaire 21 forme une cavité cylindrique de révolution autour de l'axe longitudinal L dans laquelle peut éventuellement être inséré un joint unitaire filaire 29 (« Single Wire Seal » ou « SWS » en anglais). La couche 28 de matière plastique à l'extérieur de la portion tubulaire 21 forme une encoche 30 circulaire autour de l'axe longitudinal L dans laquelle peut être inséré un joint interfacial 31 (voir figure 8A).During this overmolding operation, the inner and outer surfaces 25 of the tubular portion 21 are lined with a layer 28 of plastic material of substantially uniform thickness. The overmolded plastic material also penetrates into the holes 23 for better anchoring of the support 26 on the shielding 2 and to strengthen the retention of the first 3 and second 4 shielding elements with one another. The layer 28 of plastic material inside the tubular portion 21 forms a cylindrical cavity of revolution around the longitudinal axis L in which can optionally be inserted a unitary wire seal 29 ("Single Wire Seal" or “SWS” in English). The layer 28 of plastic material outside the tubular portion 21 forms a circular notch 30 around the longitudinal axis L in which can be inserted an interfacial seal 31 (see figure 8A ).

Les extrémités recourbées 18 des languettes élastiques externes 11 et des faces latérales 13 et inférieure 14 de la portion inférieure 9, ainsi que l'extrémité libre de la portion tubulaire 21 ne sont pas recouvertes de matière plastique, afin de laisser apparentes des zones de contact électrique.The curved ends 18 of the external elastic tongues 11 and of the lateral 13 and lower faces 14 of the lower portion 9, as well as the free end of the tubular portion 21 are not covered with plastic, in order to leave visible areas of contact. electric.

Le montage de l'adaptateur 1 sur un connecteur 17 est décrit ci-dessous en relation avec les figures 5 à 9B. Le connecteur 17 pris comme exemple pour décrire ce montage comporte

  • un boîtier 16 et un couvercle 32, tous deux en matériau isolant,
  • des barres rigides métalliques conductrices 33 (« busbar » en anglais),
  • des joints d'étanchéité 34 autour de ces barres rigides métalliques conductrices 33,
  • des câbles 24 électriquement conducteurs munis à leur extrémité libre, chacun respectivement d'une borne 35 de contact électrique, logée dans une alvéole 46 du boîtier 16 (voir figures 8A et 9A).
The mounting of the adapter 1 on a connector 17 is described below in relation to the figures 5 to 9B . The connector 17 taken as an example to describe this assembly comprises
  • a housing 16 and a cover 32, both of insulating material,
  • rigid metallic conductive bars 33 ("busbar" in English),
  • seals 34 around these rigid conductive metal bars 33,
  • electrically conductive cables 24 provided at their free end, each respectively with an electrical contact terminal 35, housed in a cell 46 of the housing 16 (see figures 8A and 9A ).

Le connecteur 17 est également recouvert d'une enveloppe de blindage 20 réalisée à partir de trois pièces 20a, 20b, 20c, chacune respectivement formée par découpe et emboutissage d'une tôle métallique conductrice. Ces trois pièces 20a, 20b, 20c comportent des bordures munies de languettes élastiques 36 adaptées pour établir un contact électrique entre elles ou avec le blindage 2 de l'adaptateur 1. L'enveloppe de blindage 20 recouvre essentiellement l'ensemble des surfaces externes du boîtier 16 et de son couvercle 32.The connector 17 is also covered with a shielding envelope 20 made from three parts 20a, 20b, 20c, each respectively formed by cutting and stamping a conductive metal sheet. These three parts 20a, 20b, 20c comprise edges provided with resilient tongues 36 adapted to establish electrical contact between them or with the shielding 2 of the adapter 1. The shielding casing 20 essentially covers all of the external surfaces of the device. housing 16 and its cover 32.

Le connecteur 16 comporte six adaptateurs 1, trois sur une rangée supérieure et trois sur une rangée inférieure. Les faces inférieures 14 des blindages 2 des adaptateurs 1 de la rangée supérieure sont en vis-à-vis de celles des adaptateurs 1 de la rangée inférieure. Comme illustré en particulier sur les figures 8A et 9A, les faces inférieures 14 de deux premiers éléments 3 de blindage superposés (c'est-à-dire l'un, placé dans la rangée supérieure, étant situé au-dessus sur d'un autre, situé dans la rangée inférieure) sont en contact électrique l'une avec l'autre.Connector 16 has six adapters 1, three on an upper row and three on a lower row. The lower faces 14 of the shields 2 of the adapters 1 of the upper row are opposite those of the adapters 1 of the lower row. As illustrated in particular on figures 8A and 9A , the lower faces 14 of two first superimposed shielding elements 3 (that is to say one, placed in the upper row, being located above on top of another, located in the lower row) are in electrical contact with each other.

Le boîtier 16 comporte des culots 37 s'étendant longitudinalement, à partir d'une face avant 38 (voir figures 6 et 7). Ces culots 37 comportent chacun respectivement une partie hémicylindrique adaptée pour être introduite dans une partie supérieure 8 de l'adaptateur 1. Ces culots 37 comportent également chacun respectivement une partie essentiellement complémentaire de la partie inférieure 9 de l'adaptateur 1 et adaptée pour être introduite dans cette dernière.The housing 16 has bases 37 extending longitudinally, from a front face 38 (see figures 6 and 7 ). These bases 37 each respectively comprise a semi-cylindrical part adapted to be introduced into an upper part 8 of the adapter 1. These bases 37 also each respectively comprise a part essentially complementary to the lower part 9 of the adapter 1 and adapted to be introduced. in the latter.

Chaque culot 37 comporte sur sa surface externe deux picots 39 diamétralement opposés adaptés pour coopérer chacun respectivement avec une découpe 15 du premier élément 3 de blindage afin de fixer l'adaptateur 1 correspondant sur le boîtier 16.Each base 37 comprises on its outer surface two diametrically opposed pins 39 adapted to each cooperate respectively with a cutout 15 of the first shielding element 3 in order to fix the corresponding adapter 1 on the housing 16.

Lors du montage du connecteur électrique 17, les adaptateurs 1 sont ainsi montés et fixés sur les culots 37. L'enveloppe de blindage 20 ayant été préalablement montée sur le boîtier 16 et son couvercle 32, les extrémités recourbées 18 des languettes externes 11 du blindage 2 de chaque adaptateur 1 viennent reposer sur les languettes 36 de l'enveloppe de blindage 20 et ainsi mettre en continuité électrique les adaptateurs 1 avec l'enveloppe de blindage 20. On notera, que selon des variantes, il est évidemment possible de faire l'inverse et de recouvrir les languettes externes 11 du blindage 2 de chaque adaptateur 1 avec des languettes 36 de l'enveloppe de blindage 20.When mounting the electrical connector 17, the adapters 1 are thus mounted and fixed on the bases 37. The shielding casing 20 having been previously mounted on the housing 16 and its cover 32, the curved ends 18 of the outer tabs 11 of the shielding 2 of each adapter 1 come to rest on the tabs 36 of the shielding casing 20 and thus place the adapters 1 in electrical continuity with the shielding casing 20. It will be noted that according to variants, it is obviously possible to make the 'reverse and cover the outer tabs 11 of the shield 2 of each adapter 1 with tabs 36 of the shield casing 20.

Selon la variante du procédé de montage du connecteur 17 illustrée par les figures 6, 8A et 8B, les contacts 35 du connecteur 17 sont sertis chacun respectivement sur un câble 24 blindé, c'est-à-dire avec une tresse de blindage 40 intégrée entre des gaines isolantes du câble 24. Autrement dit, chaque câble électrique 24 comprend une tresse de blindage 40 électrique, une première gaine 41 électriquement isolante étant intercalée entre une âme conductrice 42 et la tresse de blindage 40 électrique (voir figure 8B). On notera que l'âme conductrice 42 est dénudée sur une portion d'extrémité pour établir une continuité électrique avec un contact 35 et que la tresse de blindage électrique 40 est dénudée sur une portion pour établir une continuité électrique avec l'adaptateur 1. Plus précisément, comme illustré sur la figure 8A, une férule 43 est intercalée entre cette portion dénudée de la portion de la tresse de blindage 40 et la surface interne de la portion tubulaire 21 du deuxième élément 4 de l'adaptateur 1. La férule 43 permet ainsi d'établir une jonction électrique indirecte entre cette portion dénudée de la portion de la tresse de blindage 40 et la surface interne de la portion tubulaire 21 du deuxième élément 4 de l'adaptateur 1.According to the variant of the method for mounting the connector 17 illustrated by the figures 6 , 8A and 8B , the contacts 35 of the connector 17 are each respectively crimped onto a shielded cable 24, that is to say with a shielding braid 40 integrated between the insulating sheaths of the cable 24. In other words, each electric cable 24 comprises a braid of electrical shielding 40, a first electrically insulating sheath 41 being interposed between a conductive core 42 and the electrical shielding braid 40 (see figure 8B ). Note that the conductive core 42 is stripped on an end portion to establish electrical continuity with a contact 35 and that the electrical shielding braid 40 is stripped over a portion to establish electrical continuity with the adapter 1. More precisely, as illustrated on figure 8A , a ferrule 43 is interposed between this stripped portion of the portion of the shielding braid 40 and the internal surface of the tubular portion 21 of the second element 4 of the adapter 1. The ferrule 43 thus makes it possible to establish an indirect electrical junction between this stripped portion of the portion of the shielding braid 40 and the internal surface of the tubular portion 21 of the second element 4 of the adapter 1.

Une deuxième gaine 44 électriquement isolante recouvre la tresse de blindage 40 électrique, au-delà de sa portion dénudée, en éloignement de son extrémité libre. Un joint unitaire filaire 29 est intercalé entre la deuxième gaine 44 isolante et la surface interne de la couche 28 de matière plastique tapissant la portion tubulaire 21. Par ailleurs, un joint interfacial 31 est inséré entre le culot 37 du boîtier 16 et la surface externe de la couche 28 de matière plastique tapissant la portion tubulaire 21. De cette manière, l'interface entre chaque alvéole 36 de contact 35 et le câble 24 relié à ce contact 35 est rendue individuellement hermétique, tout en conservant une continuité électrique assurant une continuité de blindage entre chaque câble 24 et le connecteur 17. Ceci permet d'écranter d'éventuelles ondes électromagnétiques rayonnant à partir des portions de câble 24 ou des contacts 35 logés dans le connecteur 17.A second electrically insulating sheath 44 covers the electrical shielding braid 40, beyond its stripped portion, away from its free end. A wired unitary gasket 29 is interposed between the second insulating sheath 44 and the internal surface of the layer 28 of plastic material lining the tubular portion 21. Furthermore, an interfacial gasket 31 is inserted between the base 37 of the housing 16 and the external surface. of the layer 28 of plastic material lining the tubular portion 21. In this way, the interface between each contact cell 36 35 and the cable 24 connected to this contact 35 is individually sealed, while maintaining electrical continuity ensuring continuity of shielding between each cable 24 and the connector 17. This makes it possible to screen any electromagnetic waves radiating from the cable portions 24 or from the contacts 35 housed in the connector 17.

Selon la variante du procédé de montage du connecteur 1, illustrée par les figures 7, 9A et 9B, les contacts 35 du connecteur 17 sont sertis chacun respectivement sur un câble 24 non-blindé. Autrement dit, chaque câble 24 électrique comprend une âme conductrice 42 et une première gaine 41 électriquement isolante au sein de laquelle passe l'âme conductrice 42 (voir figure 9B). On notera que l'âme conductrice 42 est dénudée sur une portion d'extrémité pour établir une continuité électrique avec un contact 35.According to the variant of the method for mounting the connector 1, illustrated by the figures 7 , 9A and 9B , the contacts 35 of the connector 17 are each respectively crimped onto an unshielded cable 24. In other words, each electrical cable 24 comprises a conductive core 42 and a first electrically insulating sheath 41 within which the conductive core 42 passes (see figure 9B ). It will be noted that the conductive core 42 is stripped on an end portion to establish electrical continuity with a contact 35.

Comme illustré sur les figures 7 et 9A, une tresse de blindage 12 en forme de manchon enveloppe les extrémités de deux câbles 24, à l'extérieur du connecteur 17, ainsi que les deux adaptateurs 1 correspondant à ces deux câbles 24. Un collier de serrage 45 maintient cette tresse de blindage 12 sur les surfaces externes 10 des adaptateurs 1. Plus précisément, le collier de serrage 45 presse la tresse de blindage sur au moins une zone des languettes 11 saillantes ou affleurantes sur la surface externe 10. le collier de serrage 45 peut également éventuellement contribuer à maintenir ces languettes 11 en appui et en contact électrique avec l'enveloppe de blindage 20 du connecteur 17. Les ergots 27 forment avec ces surfaces externes 10 des zones adaptées pour retenir le collier de serrage 45. Les ergots 27 contribuent ainsi à maintenir la tresse de blindage 12 sur ces surfaces externes 10 en bloquant le collier de serrage 45 en cas de traction sur celui-ci.As shown on figures 7 and 9A , a shielding braid 12 in the form of a sleeve envelops the ends of two cables 24, outside the connector 17, as well as the two adapters 1 corresponding to these two cables 24. A clamp 45 maintains this shielding braid 12 on the outer surfaces 10 of the adapters 1. More specifically, the clamp 45 presses the shielding braid over at least one area of the protruding or flush tabs 11 on the outer surface 10. the clamp 45 may also optionally help to hold these tabs 11 in support and in electrical contact with the shielding casing 20 of the connector 17. The pins 27 form with these external surfaces 10 areas suitable for retaining the clamp 45. The pins 27 thus contribute to maintaining the shielding braid 12 on these. external surfaces 10 by blocking the clamp 45 in the event of traction on it.

Un joint unitaire filaire 29 est intercalé entre la première gaine 41 isolante et la surface interne de la couche 28 de matière plastique tapissant la portion tubulaire 21. Par ailleurs, un joint interfacial 31 est inséré entre le culot 37 du boîtier 16 et la surface externe de la couche 28 de matière plastique tapissant la portion tabulaire 21. De cette manière, comme pour la précédente variante du procédé de montage selon l'invention, l'interface entre chaque alvéole 36 de contact 35 et le câble 24 relié à ce contact 35 est rendue individuellement hermétique, tout en conservant une continuité électrique assurant une continuité de blindage entre chaque câble 24 et le connecteur 17. Ceci permet d'écranter d'éventuelles ondes électromagnétiques rayonnant à partir des portions de câble 24 ou des contacts 35 logés dans le connecteur 17.A wired unitary seal 29 is interposed between the first insulating sheath 41 and the internal surface of the layer 28 of plastic material lining the tubular portion 21. Furthermore, an interfacial seal 31 is inserted between the base 37 of the housing 16 and the external surface. of the layer 28 of plastic material covering the tubular portion 21. In this way, as for the previous variant of the assembly method according to the invention, the interface between each contact cell 36 35 and the cable 24 connected to this contact 35 is made individually hermetic, while retaining an electrical continuity ensuring a shielding continuity between each cable 24 and the connector 17. This makes it possible to screen any electromagnetic waves radiating from the cable portions 24 or from the contacts 35 housed in the connector 17.

On notera que la surface interne du passage ménagé selon l'axe longitudinal L de l'adaptateur 1 peut être partiellement tapissé, ou ne pas être tapissé, de matière plastique isolante. Par exemple, dans le cas de la mise en œuvre selon la première variante décrite ci-dessus du procédé selon l'invention, un contact électrique direct (sans férule) peut être réalisé entre le blindage 2 de l'adaptateur 1 et la tresse de blindage 40 intégrée au câble 24.It will be noted that the internal surface of the passage formed along the longitudinal axis L of the adapter 1 may be partially lined, or not be lined, with insulating plastic material. For example, in the case of the implementation according to the first variant described above of the method according to the invention, a direct electrical contact (without ferrule) can be made between the shielding 2 of the adapter 1 and the braid of shielding 40 integrated into the cable 24.

Claims (14)

  1. Electrical shielding adaptor, for electrical connector (17) provided with a shielding enclosure (20), this adaptor (1) comprising:
    - means (15) for being fixed to a housing (16) of an electrical connector (17),
    - a support (26) made of insulating plastic material,
    - a passage designed to be passed through along a longitudinal axis (L) by an electrical cable (24) which comprises a conductive core (42) and at least one first electrically insulating sheath (41) in which the conductive core (42) runs,
    characterized in that it further comprises a shielding (2) made of metal sheet, this shielding (2) comprising an inner surface extending at least partially in the passage, and an electrically conductive outer surface (10) designed to establish an electrical junction with the shielding enclosure (20) of the connector (17), these inner and outer surfaces (10) being in electrical continuity, this shielding (2) allowing an electrical continuity to be established between the outer surface (10) and one of the elements included in the following list: a shielding braid (12) in the form of an independent sleeve at least partially covering an electrical cable (24), this shielding braid (12) being intended to be held on the outer surface (10) of the adaptor, and a shielding braid (40) incorporated in an electrical cable (24) passing through the passage and intended to be linked to the electrical connector (17).
  2. Adaptor according to Claim 1, wherein the outer surface (10) comprises a zone designed to retain a clamping collar (45).
  3. Adaptor according to Claim 2, wherein the clamping collar (45) presses a shielding braid onto at least one zone of the tongues (11) of the outer surface (10) and keeps these tongues (11) pressed on and in electrical contact with the shielding enclosure (20) of the connector.
  4. Adaptor according to one of the preceding claims, wherein the shielding (2) made of metal sheet is at least partially overmoulded by the plastic material of the support (26).
  5. Adaptor according to one of the preceding claims, comprising an interfacial seal (31) designed to be inserted between the support (26) and the housing (16) of the connector (17).
  6. Adaptor according to one of the preceding claims, comprising a single wire seal (29), inserted into the passage and designed to be inserted between the electrical cable (24) and the support (26).
  7. Adaptor according to one of the preceding claims, comprising flexible tongues (11) designed to establish an electrical contact with the shielding enclosure (20).
  8. Adaptor according to one of the preceding claims, wherein the shielding (2) comprises a first element (3) and a second element (4), the first element (3) being designed to be in electrical contact with the shielding enclosure (20) and with the second element (4), the second element (4) comprising a cylindrical tubular portion (21) extending along the longitudinal axis (L).
  9. Adaptor according to one of the preceding claims, comprising flexible tongues (11) that protrude or are flush on the outer surface (10) and designed to establish an electrical contact with a conductive braid (12) at least partially covering at least one cable (24).
  10. Adaptor according to one of the preceding claims, wherein the passage is designed to receive an electrical cable (24) further comprising an electrical shielding braid (40), the first electrically insulating sheath (41) being inserted between the conductive core (42) and the electrical shielding braid (40) over at least a part of the length of the electrical cable (24), and a second electrically insulating sheath (44) at least partially covering the electrical shielding braid (40), and wherein the shielding (2) comprises an electrically conductive inner surface designed to establish a direct electrical junction, or an indirect electrical junction via a ferule (43), with the shielding braid (40) of the cable (24).
  11. Shielded electrical connector comprising a housing (16) made of electrically insulating material and a shielding enclosure (20) at least partially covering at least certain surfaces of the housing (16), this connector (17) comprising at least one adaptor (1) according to one of the preceding claims, mounted on the housing (16) and of which the shielding (2) is in electrical continuity with the shielding enclosure (20).
  12. Connector according to Claim 11, comprising a conductive braid (12) at least partially covering at least one cable (24) linked to a contact (35) housed in the housing (16) of the connector (17), this conductive braid (12) being in electrical continuity with the outer surface (10) of an adaptor (1).
  13. Method for mounting a shielded connector, wherein
    - a housing (16) of a connector (17) and a shielding enclosure (20) designed to at least partially cover at least certain surfaces of the housing (16) are provided,
    - an electrical cable (24) with an electrically conductive core (42) and a first electrically insulating sheath (41) in which the conductive core (42) runs is provided, linked to a contact (35) housed in the housing (16) of the connector (17),
    - a shielding braid (12) is provided in the form of an independent sleeve and at least partially covering at least one cable (24) linked electrically to a contact (35) housed in the housing (16) of the connector (17),
    - an adaptor (1) according to one of Claims 1 to 9 is mounted on the housing (16),
    - the shielding enclosure (20) is mounted so as to be placed in electrical continuity with the shielding (2) of the adaptor (1), and
    - the shielding braid (12) in the form of an independent sleeve is placed in contact with the outer surface (10) of the shielding (2) of the adaptor (1).
  14. Method for mounting a shielded connector wherein
    - a housing (16) of a connector and a shielding enclosure (20) designed to at least partially cover at least certain surfaces of the housing (16) are provided,
    - an electrical cable (24) with an electrically conductive core (42) and a first electrically insulating sheath (41) in which the electrically conductive core (42) runs is provided, linked to a contact (35) housed in the housing (16) of the connector (17), this electrical cable (24) further comprising a shielding braid (40) incorporated in the electrical cable, the first electrically insulating sheath (41) being inserted, over at least a part of the length of the electrical cable (24), between the conductive core (42) and the shielding braid (40) incorporated in the electrical cable and a second electrically insulating sheath (44) at least partially covering the shielding braid (40) incorporated in the electrical cable,
    - an adaptor (1) according to one of Claims 1 to 10 is mounted on the housing (16), establishing electrical continuity between the shielding (2) of the adaptor (1) and the shielding braid (40) incorporated in the electrical cable, and
    - the shielding enclosure (20) is mounted so as to establish electrical continuity between it and the shielding (2) of the adaptor (1).
EP18201307.8A 2017-10-30 2018-10-18 Shielded connector adaptor, shielded connector and method for mounting a shielded connector Active EP3477789B1 (en)

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FR1760218A FR3073097A1 (en) 2017-10-30 2017-10-30 ADAPTER FOR ARMORED CONNECTOR, ARMORED CONNECTOR AND METHOD FOR MOUNTING ARMORED CONNECTOR

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EP3477789A1 EP3477789A1 (en) 2019-05-01
EP3477789B1 true EP3477789B1 (en) 2021-06-23

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CN112072357B (en) * 2019-10-17 2021-10-29 文成县简创科技有限公司 Plug board capable of being converted into cylinder

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CN102598427B (en) * 2009-10-14 2015-11-25 富加宜汽车控股公司 For the sealing device of individually shielded cable with corresponding cable assembly
EP2517324B1 (en) 2009-12-24 2015-02-25 Delphi International Operations Luxembourg S.à r.l. Cable junction
FR2981210B1 (en) * 2011-10-10 2015-03-06 Leoni Wiring Systems France DEVICE FOR CONNECTING AN ARMORED CABLE TO A HOUSING

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FR3073097A1 (en) 2019-05-03
EP3477789A1 (en) 2019-05-01

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