EP3190668A1 - Connector resistant to partial discharges - Google Patents

Connector resistant to partial discharges Download PDF

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Publication number
EP3190668A1
EP3190668A1 EP16207484.3A EP16207484A EP3190668A1 EP 3190668 A1 EP3190668 A1 EP 3190668A1 EP 16207484 A EP16207484 A EP 16207484A EP 3190668 A1 EP3190668 A1 EP 3190668A1
Authority
EP
European Patent Office
Prior art keywords
connector
male
female
insulating material
conductors
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.)
Granted
Application number
EP16207484.3A
Other languages
German (de)
French (fr)
Other versions
EP3190668B1 (en
Inventor
Gaspard Cayzac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Air LB SAS
Original Assignee
Amphenol Air LB SAS
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Publication date
Application filed by Amphenol Air LB SAS filed Critical Amphenol Air LB SAS
Publication of EP3190668A1 publication Critical patent/EP3190668A1/en
Application granted granted Critical
Publication of EP3190668B1 publication Critical patent/EP3190668B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • 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
    • H01R13/50—Bases; Cases formed as an integral body
    • 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
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
    • 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
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or 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
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/6485—Electrostatic discharge protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to connectors for the electrical connection of conductors comprising at their ends to connect a contact tip.
  • a particularly interesting but non-limiting application of the invention relates to connectors providing electrical connection of conductors for aeronautical applications subjected to an intense vibratory environment.
  • such a connector comprises a male part 1 and a female part 2.
  • the male part 1 comprises a body 3 made of rigid insulating material, of parallelepipedal or other general shape.
  • the body 3 comprises a set of housings or cylindrical cavities 4 each receiving a finned sleeve 5 for locking, in the body 3, a contact element 6 having a front pin 7 which passes through a hole 8 provided in the front face 9 of the body 3, in alignment with each housing 4.
  • the contact element further comprises a central locking collar 10 and a rear section 11 for receiving a contact tip (not shown) attached to the end of a conductor to be connected.
  • the sockets 5 are retained in the housings 4 by a retaining element 13 having holes 14 aligned with the housings 4 and held in the body 3 by a closure element and sealing 15 of flexible insulating material which is directly molded into the open rear end of the body 3.
  • the element 15 has through holes 16 for the conductors, which are aligned with the housings 4 and which have an alternation of section 17 of small diameter and section 18 of larger diameter.
  • the body 3 externally comprises a set of nipples 19 which surround, by enclosing them, the pins 7 to seal against front of the connector.
  • the female part As regards the female part, it has a shape similar to that of the male part.
  • the contact elements 22 comprise at the front a socket 23 instead of a pin.
  • the body 24 is deeper than the body of the male part so as to accommodate the sockets 23.
  • the body has recesses 25 extending the housing 4, and through holes 26 to allow insertion 7 male pins in the sockets 23.
  • the female part is also devoid of nipple provided on the male part 1.
  • Such a connector is advantageous insofar as it makes it possible to obtain an effective seal as well as a play-free holding of each part of the connector.
  • the connectors may be subject to partial discharges, which may appear for example when connecting or disconnecting pins and sockets. Such electrical discharges are likely to alter the insulating material of the body and, in the long run, to alter its electrical insulation properties.
  • the object of the invention is therefore to overcome this drawback and to provide a connector in which the electrical insulation properties of the elements involved in its constitution are guaranteed in the long term.
  • the invention therefore relates to a connector for the connection of electrical conductors comprising a contact tip at their end to be connected, comprising two parts conjugates, respectively male and female, each comprising a body of insulating material provided with housings in which are mounted respectively male and female contacts adapted to receive the contact tips of the conductors.
  • At least one of said male and female parts internally comprises zones forming partitions placed between said housings and made from a material capable of withstanding electrical discharges.
  • the material of the partitions is a thermosetting polymer having a CTI index greater than or equal to 600.
  • a silicone or an epoxy resin may be used.
  • the partition extends in the body along at least part of the length of the housing.
  • the partitioning zones are formed by overmolding said material capable of withstanding electrical discharges on the insulating material of the body.
  • the insulating material of the body is thermoplastic.
  • the body of the male and female parts is closed on the rear side by which the conductors are introduced into the connector by a closure portion of flexible insulating material having passages for said conductors.
  • it advantageously comprises, on the front side, through which the male contacts extend projecting sealing nipples overmoulded flexible insulating material.
  • the nipples are overmolded with the closing part.
  • the connector according to the invention designated by the general reference numeral 30, comprises two parts, namely a male part 31 and a female part 32.
  • the male part 31 is intended to receive a male contact element (not shown) in pin-shaped while the female part 32 is intended to receive a socket-shaped female contact element.
  • the male and female parts each comprise a body 33 and 34 ( Figures 4 and 5 ) in which are provided a set of housings such as 36 extending over the entire height of the body to receive a pin 37, with respect to the male part, and a sleeve 38, with respect to the female part.
  • the body comprises four housings 36 intended to receive four corresponding contact elements.
  • the body of the connector comprises any number of such housing for receiving a corresponding number of male or female contact elements.
  • each male or female contact element 37 or 38 has a medial flange 39 on which a generally frustoconical and elastically deformable retaining element 40, molded with the body and formed for example by a set of tongues elastically deformable to ensure the maintenance of the snap contact element in the body.
  • each contact element comprises a rear section such as 41 having a blind hole 42 for receiving a contact tip (not shown) attached to the end of a conductor to be connected.
  • the height of the male part is such that the pins protrude beyond the body while the height of the female part is greater than that of the male part and is such that the sleeves are fully housed in the part female.
  • the pins fit into the sockets to ensure the mechanical attachment and the electrical connection of the conductors provided with the contact tips inserted in the blind holes 42 of the pins and sockets.
  • the rear face of the male and female parts that is to say the faces located opposite the connection area of the contact elements, comprise a closure portion 43 of flexible insulating material, for example silicone.
  • This closing portion 43 is provided with longitudinal passages 44 aligned with the housings 36, and comprises for example a succession of small diameter sections and larger diameter sections to ensure sealing with the electrical conductors inserted in the longitudinal passages 44 .
  • the front face has teats 45 made of a flexible insulating material, preferably consisting of the same flexible insulating material as the rear closure part 43.
  • the teats 45 are made from the same molded part and are each formed by conical sections which surround by enclosing the male ends of the pins to ensure sealing between the pins and the male part and between the male and female parts. female.
  • the teats 45 can be made simultaneously with the rear closure part 43 during an overmolding operation of the body 33.
  • one or the other of the male and female parts preferably the two male and female parts, are provided internally with partitions 46 and 47 which extend between the housings 36 over at least a portion of the height of the male parts and female.
  • partitions are made from a material capable of withstanding electrical discharges likely to occur especially during connection and disconnections of the contact elements and which would, otherwise, likely to alter the electrical insulation properties of the material constituent of the body.
  • the material constituting the partitions is a thermosetting polymer having a CTI index greater than or equal to 600. It is advantageously a silicone or an epoxy resin.
  • the partition 47 provided in the female part extends at least over the height of the electrical connection zone between the pins and the sockets and thus makes it possible to protect the body against partial discharges and to guarantee electrical insulation of the body of the male and female parts in the long run.
  • the partitions 46 and 47 are advantageously made during a overmolding step of the body.
  • the partitions, the rear part 43 and the teats 45 are made from the same material resistant to partial discharges, during the same overmolding operation.
  • the partitions are made of a thermosetting polymer such as a silicone or an epoxy resin and are therefore made of a material different from that of the rear closure part 43 and the teats 45.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Ce connecteur pour le raccordement de conducteurs électriques comprenant un embout de contact à leur extrémité à raccorder, comprend deux parties (31, 32) conjuguées, respectivement mâle et femelle, comprenant chacune un corps (33) en matériau isolant muni de logements (36) dans lesquels viennent se monter des contacts (41) respectivement mâle et femelle aptes à recevoir les embouts de contact des conducteurs. Au moins l'une des parties mâle et femelle comporte intérieurement des zones (46) formant des cloisons placées entre lesdits logements et réalisées à partir d'un matériau apte à résister à des décharges électriques.This connector for the connection of electrical conductors comprising a contact tip at their end to be connected, comprises two parts (31, 32) conjugate, respectively male and female, each comprising a body (33) of insulating material provided with housings (36). in which come contacts (41) male and female respectively adapted to receive the contact tips of the conductors. At least one of the male and female parts internally comprises zones (46) forming partitions placed between said housings and made from a material capable of withstanding electrical discharges.

Description

La présente invention se rapporte aux connecteurs pour le raccordement électrique de conducteurs comprenant à leurs extrémités à raccorder un embout de contact.The present invention relates to connectors for the electrical connection of conductors comprising at their ends to connect a contact tip.

Une application particulièrement intéressante mais non limitative de l'invention concerne les connecteurs assurant le raccordement électrique de conducteurs pour des applications aéronautiques soumis à un environnement vibratoire intense.A particularly interesting but non-limiting application of the invention relates to connectors providing electrical connection of conductors for aeronautical applications subjected to an intense vibratory environment.

On connaît, dans l'état de la technique, divers types de connecteurs.Various types of connectors are known in the state of the art.

On pourra par exemple se référer au document FR 2 742 264 qui décrit un connecteur muni de moyens permettant d'assurer d'une manière simple et peu coûteuse une bonne étanchéité interfaciale entre les diverses parties du connecteur.For example, we can refer to the document FR 2,742,264 which describes a connector provided with means for ensuring in a simple and inexpensive way a good interfacial sealing between the various parts of the connector.

On a représenté sur la figure 1 un connecteur de ce type.We have shown on the figure 1 a connector of this type.

Comme on le voit, un tel connecteur comprend une partie mâle 1 et une partie femelle 2.As can be seen, such a connector comprises a male part 1 and a female part 2.

La partie mâle 1 comprend un corps 3 en matière isolante rigide, de forme générale parallélépipédique ou autre. En outre, le corps 3 comporte un ensemble de logements ou cavités 4 cylindriques recevant chacune une douille à ailettes 5 destinée au verrouillage, dans le corps 3, d'un élément de contact 6 comportant une broche avant 7 qui traverse un trou 8 prévu dans la face avant 9 du corps 3, en alignement avec chaque logement 4.The male part 1 comprises a body 3 made of rigid insulating material, of parallelepipedal or other general shape. In addition, the body 3 comprises a set of housings or cylindrical cavities 4 each receiving a finned sleeve 5 for locking, in the body 3, a contact element 6 having a front pin 7 which passes through a hole 8 provided in the front face 9 of the body 3, in alignment with each housing 4.

L'élément de contact comporte en outre une collerette médiane de verrouillage 10 et un tronçon arrière 11 destiné à recevoir un embout de contact (non représenté) fixé à l'extrémité d'un conducteur à connecter.The contact element further comprises a central locking collar 10 and a rear section 11 for receiving a contact tip (not shown) attached to the end of a conductor to be connected.

Les douilles 5 sont retenues dans les logements 4 par un élément de retenue 13 comportant des trous 14 alignés avec les logements 4 et maintenus dans le corps 3 par un élément de fermeture et d'étanchéité 15 en matière isolante souple qui est directement moulé dans l'extrémité arrière ouverte du corps 3.The sockets 5 are retained in the housings 4 by a retaining element 13 having holes 14 aligned with the housings 4 and held in the body 3 by a closure element and sealing 15 of flexible insulating material which is directly molded into the open rear end of the body 3.

L'élément 15 comporte des trous de passage 16 pour les conducteurs, qui sont alignés avec les logements 4 et qui présentent une alternance de tronçon 17 de petit diamètre et de tronçon 18 de plus grand diamètre.The element 15 has through holes 16 for the conductors, which are aligned with the housings 4 and which have an alternation of section 17 of small diameter and section 18 of larger diameter.

Sur la face avant, c'est-à-dire sur la face opposée à la partie de fermeture 15, le corps 3 comporte extérieurement un ensemble de tétines 19 qui entourent, en les enserrant, les broches 7 pour assurer l'étanchéité à l'avant du connecteur.On the front face, that is to say on the face opposite to the closing portion 15, the body 3 externally comprises a set of nipples 19 which surround, by enclosing them, the pins 7 to seal against front of the connector.

En ce qui concerne la partie femelle, celle-ci comporte une forme similaire à celle de la partie mâle.As regards the female part, it has a shape similar to that of the male part.

Toutefois, les éléments de contact 22 comportent à l'avant une douille 23 au lieu d'une broche. Par exemple, le corps 24 est plus profond que le corps de la partie mâle de manière à loger les douilles 23. A cet effet, le corps comporte des évidements 25 prolongeant les logements 4, et des trous de passage 26 pour permettre l'insertion des broches 7 mâles dans les douilles 23. La partie femelle est par ailleurs dépourvue de tétine prévue sur la partie mâle 1.However, the contact elements 22 comprise at the front a socket 23 instead of a pin. For example, the body 24 is deeper than the body of the male part so as to accommodate the sockets 23. For this purpose, the body has recesses 25 extending the housing 4, and through holes 26 to allow insertion 7 male pins in the sockets 23. The female part is also devoid of nipple provided on the male part 1.

Un tel connecteur est avantageux dans la mesure où il permet d'obtenir une étanchéité efficace ainsi qu'un maintien sans jeu de chaque partie du connecteur.Such a connector is advantageous insofar as it makes it possible to obtain an effective seal as well as a play-free holding of each part of the connector.

Toutefois, les connecteurs peuvent être sujets à des décharges partielles, qui sont susceptibles d'apparaître par exemple lors de la connexion ou de la déconnexion des broches et des douilles. De telles décharges électriques sont susceptibles d'altérer la matière isolante du corps et, à la longue, d'altérer ses propriétés d'isolation électrique.However, the connectors may be subject to partial discharges, which may appear for example when connecting or disconnecting pins and sockets. Such electrical discharges are likely to alter the insulating material of the body and, in the long run, to alter its electrical insulation properties.

Le but de l'invention est donc de pallier cet inconvénient et de proposer un connecteur dans lequel les propriétés d'isolation électrique des éléments entrant dans sa constitution sont garanties à long terme.The object of the invention is therefore to overcome this drawback and to provide a connector in which the electrical insulation properties of the elements involved in its constitution are guaranteed in the long term.

L'invention a donc pour objet un connecteur pour le raccordement de conducteurs électriques comprenant un embout de contact à leur extrémité à raccorder, comprenant deux parties conjuguées, respectivement mâle et femelle, comprenant chacune un corps en matériau isolant muni de logements dans lesquels viennent se monter des contacts respectivement mâle et femelle aptes à recevoir les embouts de contact des conducteurs.The invention therefore relates to a connector for the connection of electrical conductors comprising a contact tip at their end to be connected, comprising two parts conjugates, respectively male and female, each comprising a body of insulating material provided with housings in which are mounted respectively male and female contacts adapted to receive the contact tips of the conductors.

Au moins l'une desdites parties mâle et femelle comporte intérieurement des zones formant des cloisons placées entre lesdits logements et réalisées à partir d'un matériau apte à résister à des décharges électriques.At least one of said male and female parts internally comprises zones forming partitions placed between said housings and made from a material capable of withstanding electrical discharges.

Selon une autre caractéristique de ce connecteur, le matériau des cloisons est un polymère thermodurcissable ayant un index CTI supérieur ou égal à 600.According to another characteristic of this connector, the material of the partitions is a thermosetting polymer having a CTI index greater than or equal to 600.

On pourra par exemple utiliser une silicone ou une résine époxy.For example, a silicone or an epoxy resin may be used.

Avantageusement, la cloison s'étend dans le corps selon une partie au moins de la longueur des logements.Advantageously, the partition extends in the body along at least part of the length of the housing.

Selon encore une autre caractéristique du connecteur selon l'invention, les zones formant cloison sont réalisées par surmoulage dudit matériau apte à résister à des décharges électriques sur le matériau isolant du corps.According to yet another characteristic of the connector according to the invention, the partitioning zones are formed by overmolding said material capable of withstanding electrical discharges on the insulating material of the body.

Par exemple, le matériau isolant du corps est en thermoplastique.For example, the insulating material of the body is thermoplastic.

Dans un mode de réalisation, le corps des parties mâle et femelle est fermé du côté arrière par lequel les conducteurs sont introduits dans le connecteur par une partie de fermeture en matière isolante souple dotée de passages pour lesdits conducteurs.In one embodiment, the body of the male and female parts is closed on the rear side by which the conductors are introduced into the connector by a closure portion of flexible insulating material having passages for said conductors.

En ce qui concerne le corps de la partie mâle, celui-ci comporte avantageusement, du côté avant, par lequel les contacts mâles s'étendent en saillie, de tétines d'étanchéité surmoulées en matière isolante souple.Regarding the body of the male part, it advantageously comprises, on the front side, through which the male contacts extend projecting sealing nipples overmoulded flexible insulating material.

Avantageusement, les tétines sont surmoulées avec la partie de fermeture.Advantageously, the nipples are overmolded with the closing part.

D'autres buts, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante, donnée uniquement à titre d'exemple non limitatif et faite en référence aux figures annexées sur lesquelles :

  • la figure 1, dont il a déjà été fait mention, illustre la structure d'un connecteur selon l'état de la technique ;
  • la figure 2 est une vue en perspective d'un connecteur selon l'invention ;
  • la figure 3 est une vue en coupe transversale du connecteur de la figure 1 au niveau de la partie mâle ; et
  • les figures 4 et 5 sont des vues en coupe longitudinale selon deux plans de coupe respectifs perpendiculaires des parties mâle et femelle d'un connecteur conforme à l'invention.
Other objects, features and advantages of the invention will appear on reading the following description, given only by way of nonlimiting example and with reference to the appended figures in which:
  • the figure 1 , which has already been mentioned, illustrates the structure of a connector according to the state of the art;
  • the figure 2 is a perspective view of a connector according to the invention;
  • the figure 3 is a cross-sectional view of the connector of the figure 1 at the male part; and
  • the Figures 4 and 5 are views in longitudinal section along two respective perpendicular sectional planes of the male and female parts of a connector according to the invention.

Tel qu'illustré sur les figures 2, 3, 4 et 5, le connecteur selon l'invention, désigné par la référence numérique générale 30, comporte deux parties, à savoir une partie mâle 31 et une partie femelle 32. La partie mâle 31 est destinée à recevoir un élément de contact mâle (non représenté) en forme de broche tandis que la partie femelle 32 est destinée à recevoir un élément de contact femelle en forme de douille.As illustrated on figures 2 , 3 , 4 and 5 , the connector according to the invention, designated by the general reference numeral 30, comprises two parts, namely a male part 31 and a female part 32. The male part 31 is intended to receive a male contact element (not shown) in pin-shaped while the female part 32 is intended to receive a socket-shaped female contact element.

Les parties mâle et femelle comprennent chacune un corps 33 et 34 (figures 4 et 5) dans lequel sont pratiqués un ensemble de logements tels que 36 s'étendant selon toute la hauteur du corps pour recevoir une broche 37, en ce qui concerne la partie mâle, et une douille 38, en ce qui concerne la partie femelle.The male and female parts each comprise a body 33 and 34 ( Figures 4 and 5 ) in which are provided a set of housings such as 36 extending over the entire height of the body to receive a pin 37, with respect to the male part, and a sleeve 38, with respect to the female part.

Dans l'exemple illustré, le corps comporte quatre logements 36 destinés à recevoir quatre éléments de contact correspondants. Bien entendu, on ne sort pas du cadre de l'invention lorsque le corps du connecteur comporte un nombre quelconque de tels logements destinés à recevoir un nombre correspondant d'éléments de contact mâle ou femelle.In the illustrated example, the body comprises four housings 36 intended to receive four corresponding contact elements. Of course, it is not beyond the scope of the invention when the body of the connector comprises any number of such housing for receiving a corresponding number of male or female contact elements.

Comme on le voit, chaque élément de contact mâle ou femelle 37 ou 38 comporte une collerette médiane 39 sur laquelle s'appuie un élément de retenue 40 généralement tronconique et élastiquement déformable, venu de moulage avec le corps et formé par exemple par un ensemble de languettes élastiquement déformables pour assurer le maintien de l'élément de contact par encliquetage dans le corps.As can be seen, each male or female contact element 37 or 38 has a medial flange 39 on which a generally frustoconical and elastically deformable retaining element 40, molded with the body and formed for example by a set of tongues elastically deformable to ensure the maintenance of the snap contact element in the body.

Comme représenté, chaque élément de contact comporte un tronçon arrière tel que 41 doté d'un trou borgne 42 destiné à recevoir un embout de contact (non représenté) fixé à l'extrémité d'un conducteur à connecter.As shown, each contact element comprises a rear section such as 41 having a blind hole 42 for receiving a contact tip (not shown) attached to the end of a conductor to be connected.

En référence aux figures 4 et 5, la hauteur de la partie mâle est telle que les broches s'étendent en saillie au-delà du corps tandis que la hauteur de la partie femelle est supérieure à celle de la partie mâle et est telle que les douilles sont entièrement logées dans la partie femelle.With reference to Figures 4 and 5 , the height of the male part is such that the pins protrude beyond the body while the height of the female part is greater than that of the male part and is such that the sleeves are fully housed in the part female.

Ainsi, lorsque la partie mâle est assemblée sur la partie femelle, les broches s'insèrent dans les douilles pour assurer la fixation mécanique et le raccordement électrique des conducteurs munis des embouts de contact insérés dans les trous borgnes 42 des broches et des douilles.Thus, when the male part is assembled on the female part, the pins fit into the sockets to ensure the mechanical attachment and the electrical connection of the conductors provided with the contact tips inserted in the blind holes 42 of the pins and sockets.

On voit par ailleurs sur les figures 4 et 5 que la face arrière des parties mâle et femelle, c'est-à-dire les faces situées à l'opposé de la zone de raccordement des éléments de contact, comportent une partie de fermeture 43 en matière isolante souple, par exemple en silicone. Cette partie de fermeture 43 est dotée de passages 44 longitudinaux alignés avec les logements 36, et comporte par exemple une succession de tronçons de petit diamètre et de tronçons de plus grand diamètre pour assurer l'étanchéité avec les conducteurs électriques insérés dans les passages longitudinaux 44.We also see on Figures 4 and 5 that the rear face of the male and female parts, that is to say the faces located opposite the connection area of the contact elements, comprise a closure portion 43 of flexible insulating material, for example silicone. This closing portion 43 is provided with longitudinal passages 44 aligned with the housings 36, and comprises for example a succession of small diameter sections and larger diameter sections to ensure sealing with the electrical conductors inserted in the longitudinal passages 44 .

En outre, en ce qui concerne la partie mâle 33, la face avant est dotée de tétines 45 réalisées en un matériau souple isolant, de préférence constitué par la même matière isolante souple que la partie arrière de fermeture 43.In addition, with regard to the male part 33, the front face has teats 45 made of a flexible insulating material, preferably consisting of the same flexible insulating material as the rear closure part 43.

Les tétines 45 sont réalisées à partir d'une même pièce moulée et sont formées chacune par des tronçons de cône qui entourent en les enserrant les extrémités mâles des broches pour assurer l'étanchéité entre les broches et la partie mâle et entre les parties mâle et femelle.The teats 45 are made from the same molded part and are each formed by conical sections which surround by enclosing the male ends of the pins to ensure sealing between the pins and the male part and between the male and female parts. female.

On notera que, par exemple, les tétines 45 peuvent être réalisées simultanément avec la partie arrière de fermeture 43 lors d'une opération de surmoulage du corps 33.It should be noted that, for example, the teats 45 can be made simultaneously with the rear closure part 43 during an overmolding operation of the body 33.

On voit par ailleurs sur les figures 3 et 4 que l'une ou l'autre des parties mâle et femelle, de préférence les deux parties mâle et femelle, sont dotées intérieurement de cloisons 46 et 47 qui s'étendent entre les logements 36 sur une partie au moins de la hauteur des parties mâle et femelle.We also see on figures 3 and 4 that one or the other of the male and female parts, preferably the two male and female parts, are provided internally with partitions 46 and 47 which extend between the housings 36 over at least a portion of the height of the male parts and female.

Ces cloisons sont réalisées à partir d'un matériau apte à résister à des décharges électriques susceptibles d'apparaître notamment lors du raccordement et des déconnexions des éléments de contact et qui seraient, sinon, susceptibles d'altérer les propriétés d'isolation électrique du matériau constitutif du corps.These partitions are made from a material capable of withstanding electrical discharges likely to occur especially during connection and disconnections of the contact elements and which would, otherwise, likely to alter the electrical insulation properties of the material constituent of the body.

De préférence, le matériau constitutif des cloisons est un polymère thermodurcissable ayant un indice CTI supérieur ou égal à 600. Il s'agit avantageusement d'une silicone ou d'une résine époxy.Preferably, the material constituting the partitions is a thermosetting polymer having a CTI index greater than or equal to 600. It is advantageously a silicone or an epoxy resin.

On voit en particulier sur les figures 4 et 5 que la cloison 47 prévue dans la partie femelle s'étend au moins sur la hauteur de la zone de raccordement électrique entre les broches et les douilles et permet ainsi d'assurer une protection du corps contre les décharges partielles et de garantir l'isolation électrique du corps des parties mâle et femelle à long terme.In particular, we see Figures 4 and 5 that the partition 47 provided in the female part extends at least over the height of the electrical connection zone between the pins and the sockets and thus makes it possible to protect the body against partial discharges and to guarantee electrical insulation of the body of the male and female parts in the long run.

Les cloisons 46 et 47 sont avantageusement réalisées lors d'une étape de surmoulage du corps.The partitions 46 and 47 are advantageously made during a overmolding step of the body.

Avantageusement, les cloisons, la partie arrière 43 et les tétines 45 sont réalisées à partir du même matériau résistant aux décharges partielles, lors d'une même opération de surmoulage.Advantageously, the partitions, the rear part 43 and the teats 45 are made from the same material resistant to partial discharges, during the same overmolding operation.

En variante, les cloisons sont réalisées en un polymère thermodurcissable tel qu'une silicone ou une résine époxy et sont dès lors réalisées en un matériau différent de celui de la partie arrière de fermeture 43 et des tétines 45.As a variant, the partitions are made of a thermosetting polymer such as a silicone or an epoxy resin and are therefore made of a material different from that of the rear closure part 43 and the teats 45.

Claims (9)

Connecteur pour le raccordement de conducteurs électriques comprenant un embout de contact à leur extrémité à raccorder, comprenant deux parties (31, 32) conjuguées, respectivement mâle et femelle, comprenant chacune un corps (33) en matériau isolant muni de logements (36) dans lesquels viennent se monter des contacts (41) respectivement mâle et femelle aptes à recevoir les embouts de contact des conducteurs, caractérisé en ce qu'au moins l'une des parties mâle et femelle comporte intérieurement des zones (46) formant des cloisons placées entre lesdits logements et réalisées à partir d'un matériau apte à résister à des décharges électriques.Connector for the connection of electrical conductors comprising a contact tip at their end to be connected, comprising two mating parts (31, 32), male and female respectively, each comprising a body (33) of insulating material provided with housings (36) in which are respectively male and female contacts (41) adapted to receive the contact tips of the conductors, characterized in that at least one of the male and female parts internally comprises zones (46) forming partitions placed between said housings and made from a material capable of withstanding electrical discharges. Connecteur selon la revendication 1, dans lequel le matériau des cloisons est un polymère thermodurcissable ayant un index CTI supérieur ou égal à 600.The connector of claim 1, wherein the bulkhead material is a thermosetting polymer having a CTI index greater than or equal to 600. Connecteur selon l'une quelconque des revendications 1 à 2, dans lequel le matériau des cloisons est une silicone.The connector of any one of claims 1 to 2, wherein the bulkhead material is a silicone. Connecteur selon l'une quelconque des revendications 1 à 3, dans lequel la cloison (46) s'étend dans le corps selon une partie au moins de la longueur des logements.The connector of any one of claims 1 to 3 wherein the partition (46) extends in the body at least a portion of the length of the housing. Connecteur selon l'une quelconque des revendications 1 à 4, dans lequel les zones formant cloisons sont réalisées par surmoulage dudit matériau apte à résister à des décharges électriques sur le matériau isolant du corps.Connector according to any one of claims 1 to 4, wherein the partition areas are formed by overmoulding said material capable of withstanding electrical discharges on the insulating material of the body. Connecteur selon l'une quelconque des revendications 1 à 5, dans lequel le matériau isolant du corps est en thermoplastique.The connector of any one of claims 1 to 5, wherein the insulating material of the body is thermoplastic. Connecteur selon l'une quelconque des revendications 1 à 6, dans lequel le corps des parties mâle et femelle est fermé du côté arrière par lequel les conducteurs sont introduits dans le connecteur par une partie de fermeture (43) en matière isolante souple dotée de passages (44) pour lesdits conducteurs.Connector according to any one of claims 1 to 6, wherein the body of the male and female parts is closed on the rear side by which the conductors are introduced into the connector by a closing portion (43) of flexible insulating material having passages (44) for said conductors. Connecteur selon l'une quelconque des revendications 1 à 7, dans lequel le corps de la partie mâle comporte, du côté avant par lequel les contacts mâles s'étendent en saillie, des tétines (45) d'étanchéité surmoulées en matière isolante souple.Connector according to any one of claims 1 to 7, wherein the body of the male part comprises, on the front side by the male contacts project protruding, sealing teats (45) overmolded flexible insulating material. Connecteur selon la revendication 8, dépendante de la revendication 7, dans lequel les tétines sont surmoulées avec la partie de fermeture.The connector of claim 8, dependent on claim 7, wherein the teats are overmolded with the closure portion.
EP16207484.3A 2016-01-06 2016-12-30 Connector resistant to partial discharges Active EP3190668B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1650073A FR3046502B1 (en) 2016-01-06 2016-01-06 CONNECTOR RESISTANT TO PARTIAL DISCHARGES

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EP3190668A1 true EP3190668A1 (en) 2017-07-12
EP3190668B1 EP3190668B1 (en) 2020-02-19

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US (1) US9923299B2 (en)
EP (1) EP3190668B1 (en)
FR (1) FR3046502B1 (en)

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EP3772140A1 (en) * 2019-07-30 2021-02-03 Amphenol - Air LB Electrical connector and electrical connection device
FR3099653A1 (en) * 2019-07-30 2021-02-05 Amphenol-Air Lb Electrical connector and electrical connection device
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Also Published As

Publication number Publication date
FR3046502A1 (en) 2017-07-07
US9923299B2 (en) 2018-03-20
US20170194737A1 (en) 2017-07-06
FR3046502B1 (en) 2019-08-30
EP3190668B1 (en) 2020-02-19

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