EP2677602A1 - Coupling connector for at least two electrical cables - Google Patents

Coupling connector for at least two electrical cables Download PDF

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Publication number
EP2677602A1
EP2677602A1 EP13165632.4A EP13165632A EP2677602A1 EP 2677602 A1 EP2677602 A1 EP 2677602A1 EP 13165632 A EP13165632 A EP 13165632A EP 2677602 A1 EP2677602 A1 EP 2677602A1
Authority
EP
European Patent Office
Prior art keywords
teeth
housing
row
connector according
contact member
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
EP13165632.4A
Other languages
German (de)
French (fr)
Other versions
EP2677602B1 (en
Inventor
Piotr Gorecki
Ludovic Joseph Guyomar
Ghyslain Mendès
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.)
Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS
Original Assignee
Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS
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Filing date
Publication date
Application filed by Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS filed Critical Societe Industrielle de Construction dAppareils et de Materiel Electriques SICAME SAS
Publication of EP2677602A1 publication Critical patent/EP2677602A1/en
Application granted granted Critical
Publication of EP2677602B1 publication Critical patent/EP2677602B1/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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • 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

Definitions

  • the invention relates to connection connectors for at least two electrical cables, in particular for underground low-voltage power distribution network cables.
  • This connector is configured to receive in each housing the end of one of the cables to be connected, in a space between the rows of teeth of the contact member and the threaded rods, and is configured so that by screwing these rods, the cable end thus received in the housing is pushed by the rod towards the rows of teeth and a conductive core of this end of cable is penetrated by the row of teeth.
  • the invention aims to provide a similar connector that is simple, convenient and economical while having even better electrical performance.
  • the connector according to the invention thus provides, thanks to one or more simple contact members to manufacture, a particularly high quality of electrical continuity.
  • the connector according to the invention is particularly advantageous for the electric cables of underground electricity distribution networks formed by a stranded conductive core covered with an insulating sheath.
  • connection connector 10 illustrated on the Figures 1 to 3 comprises a body 11 of conductive material, six contact members 12 of conductive material, six clamping members 13 each comprising a threaded rod 14 and a sleeve 15 of insulating material and waterproof, relatively flexible, in which is arranged the body 11.
  • the connector 10 is provided to be associated, on each side, a cap 16 of insulating material and waterproof, relatively flexible.
  • the body 11 comprises a tubular wall 20 and a central partition wall 21 integral with the tubular wall 20.
  • the body 11 is made of aluminum shaped by spinning or boring on each side.
  • the cable 23 comprises a conductive core 25 covered by an insulating sheath 26.
  • the electric cable 24 comprises a conductive core covered by an insulating sheath.
  • connection connector 10 is designed to operate both an electrical connection and a mechanical connection of the cables such as 23 and 24.
  • each threaded hole 27 is engaged the threaded rod 14 of a clamping member 13, with the distal end each threaded rod 14 facing a housing 20.
  • the clamping members 13, and thus the through holes 27, are aligned in the same longitudinal direction; and are regularly distributed on each side of the partition wall 21, that is to say along each housing 22.
  • each housing 22 In each housing 22 are arranged three contact members 12, that is to say that there are as many contact members 12 as clamping members 13.
  • Each contact member 12 has a toothing 28 formed by two rows of teeth 29 with each row 29 oriented transversely to the housing 22 and facing a respective one of the threaded rods 14.
  • each threaded rod 14 is part of a metal screw 30 which further comprises of the threaded rod 14, a head 31 at the end of the threaded rod 14 opposite to the distal end.
  • each clamping member 13 comprises a plastic cap 32 covering the head 31 of the screw 30 of this clamping member.
  • Each cap 32 has at its distal end a head 33 with a prismatic section, here hexagonal, connected to the rest of the cap 32 by a frangible portion 34 configured to break under the effect of a predetermined torque.
  • the head 31 of the screw 30 and the cap 32 are arranged on the outer side of the body 11.
  • the rod 14 sinks more, on the side of its distal end, in the housing 22; and when the clamp member 13 is rotated in the unscrewing direction, the rod 14 moves back.
  • the sheath 15 in which the body 11 is disposed is made of molded flexible material. It comprises a tubular wall 35 which surrounds the tubular wall 20 of the body 11.
  • the sheath 15 has a through hole 36 serving as a passage for the threaded rod 14.
  • the sheath 15 Around each through hole 36, the sheath 15 includes a chimney 37 whose inner surface is in watertight contact with the lateral surface of the cap 32. To simplify the drawing, the chimneys 37 are not shown on the drawing. figure 3 .
  • the connector 10 is intended to be associated, as shown in FIG. figure 2 at each end, at a cap 16 to form a watertight interface between the cable such as 23 or 24 and the sleeve 15.
  • Each cap 16 is of molded flexible material. It comprises a body 40 and a tip 41.
  • the body 40 has, at the end opposite the end piece 41, an external detent 42 which is bordered by an annular rib 43.
  • the tubular wall 35 of the sheath 15 protrudes on each side beyond the body 11 with the inner side of the projecting portion conforming notch corresponding to that of the notch 42.
  • Each cap 16 is fixed to the connector 10 by snapping on the projecting end portion of the tubular wall 35 until the annular rib 43 abuts the edge of the projecting portion.
  • Each nozzle 41 internally comprises a plurality of water-tight sealing flanges 44, in this case three in number.
  • the sealing flanges are intended to tightly surround an electric cable such as 23 or 24.
  • the connector 10 is configured to receive one end of a cable such as 23 or 24 in each housing 22, in a space between the teeth 28 of the contact members 12 and the threaded rods 14, as shown in FIG. figure 4 . Then, by screwing the members 13, in each housing 22, for each contact member 12, the end of a cable such as 23 or 24 is pushed by the rod 14 towards the toothing 28, and gradually, while continuing the screwing of the members 13, the toothing 28 perforates the insulating sheath 26 of the cable such as 23 or 24 and then enters the conductive core 25 of this cable. When the penetration of the toothing 28 is sufficient, in practice when a predetermined tightening torque is reached, the frangible portion 34 breaks.
  • the contact members 12 are made of conductive material and are in contact with the body 11 itself of conductive material. , the conductive cores of the cables such as 23 and 24 are electrically connected via the contact members 12 and the body 11.
  • the connector 10 also mechanically connects the cables such as 23 and 24 since these cables are immobilized by clamping against the body 11.
  • the contact member 12 is made of a pressed and folded conductive metal plate, here made of brass with a high elastic limit.
  • the contact member 12 comprises a toothed caliper 50, a head spacer 51 projecting from one side of the stirrup 50 and a tail spacer 52 projecting from the stirrup 50 on the opposite side.
  • the stirrup 50 has a sole 53 in the form of a convex curved strip on the side of rows of teeth 29, carrying a row of teeth 29 along each of its two longitudinal edges and carrying at each end a hooking tab 54 to the body. 11.
  • Each of the rows of teeth 29 comprises a central interruption 55 with a toothed block 56 between one of the attachment tabs 54 and the central interruption 55 and another toothed block 56 between the other attachment tab 54 and the central interruption 55.
  • toothed blocks 56 are the mirror image of one another.
  • Each toothed block 56 is relatively rigid, that is to say, it retains its shape when a cable such as 23 or 24 is pressed against it.
  • the sole 53 comprises at the central interruption 55, in the vicinity of each toothed block 56, a notch 57.
  • Each of the two portions 58 of the sole 53 located between two opposite notches 57 is narrower than the rest of the sole 53.
  • the head spacer 51 and the tail spacer 52 are each oriented in the longitudinal direction of the housing 22. They project from one side and the other of the sole 53 at the central interruption 55.
  • the head spacer 51 has at its distal end a fork 59.
  • the tail spacer forms at its distal end a tenon of the same contour as the mortise 60 delimited by the fork 59.
  • the spacers 51 and 52 are provided to allow a series of contact members 12 arranged one after the other to have, for two adjacent contact members 12, the toothed stirrups 50 at a predetermined distance from each other. the other, as we see on the figure 8 .
  • stirrups 50 of two adjacent contact members 12 are correctly positioned when the tenon formed by the tail spacer 52 of one of the contact members 12 is fully engaged in the mortise 60 delimited by the fork 59 located at distal end of the head spacer of the other contact member 12.
  • the body 11 has, for each housing 22, two longitudinal grooves 65 each recessed relative to the inner surface 66 of the body 11 which laterally delimits the housing 22.
  • the two grooves 65 are the mirror image of one another with respect to a plane on which the clamping members 13 or the through holes 27 are centered (see more particularly the Figures 3 and 4 ).
  • the connector 10 comprises three contact members 12 arranged relative to each other as shown on the figure 8 , with the two hooking lugs 54 of each contact member 12 which are engaged in a groove 65 respectively.
  • each contact member 12 is attached to the body 11 by its two lugs 54 with its two rows of teeth 29 which are arranged between the latching lugs 54.
  • the deepest contact member 12 (the most right-hand member) has the distal end of its head spacer 51 against the partition wall 21 of the body 11.
  • This provides the deepest contact member 12 with longitudinal positioning relative to the body 11 such that its toothed caliper 50 is at the right of a threaded rod 14.
  • each contact member 12 has its toothed caliper 50 in line with a threaded rod 14.
  • the establishment of the contact members 12 in the body 11 is effected by engaging each contact member 12, head spacer 51 first, in the housing 22 while each latching lug 54 is engaged in a longitudinal groove 65 respective, then sliding the succession of three contact members 12 as far as the stop.
  • the contact members 12 that includes the connector 11 on the side that is seen to the right on the figure 2 are identical and arranged in the same way.
  • the parts of the connector 11 located on either side of the wall 21 are the mirror image of one another.
  • the rear face 67 of the sole 53 that is to say the face located on the opposite side to the toothing 28, is curved convex and disposed opposite the inner surface 66 of the body 21 which is curved concave.
  • the rear face 67 is distant from the inner surface 66 with a predetermined gap or clearance between them.
  • the toothing 28 then continues to penetrate the cable such as 23 or 24 and when the penetration is sufficient, that is to say when the predetermined tightening torque is reached, the frangible portion 34 breaks.
  • the contact member 12 is configured so that the deformation it undergoes when it flexes so that its rear face 67 bears on the inner surface 66 is elastic.
  • the contact member 12 tends to return to its original shape.
  • the contact member 12 will deform under the effect of its elasticity to follow this deformation of the cable.
  • the contact member 12 is dimensioned so that the rear face 67 bears on the inner surface 66 under a load corresponding to about one third of the predetermined tightening torque for which the frangible portion 34 breaks.
  • the gap J in the absence of stress is preferably between 0.5 and 1 mm.
  • the contact member 12 can thus compensate for the variation in size of the cable such as 23 or 24 by crushing, which is generally of the order of a few ⁇ m to a few hundredths of a millimeter.
  • stirrup 50 has at the same time toothed blocks 56 which do not deform in order to be able to penetrate correctly into the cable such as 23 or 24 and an elastic bending capacity, thanks to the central interruption 55.
  • the geometry of the notches 57 makes it possible to adjust the bending capacity of the toothed stirrup 50.
  • the cable 23 is sectional sector, that is to say, in outline angular sector.
  • the toothing 28 is configured to cooperate also with round section cables.
  • the toothing 28 formed by two rows of teeth 29 is replaced by a toothing formed by a single row of teeth or more than two rows of teeth, for example three rows of teeth; and / or the conformation of the teeth is different, for example to cooperate exclusively with round cables or to cooperate with bare cables or the end of which has been stripped.
  • each contact member 12 is hooked to the body 21 by two latching lugs 54.
  • the latching lugs are replaced by other latching members which fit into a part hollow body of the connector, for example a lug that enters a blind hole of the body and / or the fastening member that includes the connector body is full rather than hollow, for example a longitudinal rib.
  • each contact member 12 comprises two positioning spacers projecting from one side of the toothed yoke and from the opposite side of the centrally toothed yoke.
  • the spacers are shaped differently, for example without an end fork such as 59, are present on one side, are several on the same side and / or are removed with the longitudinal positioning that takes place. for example thanks to the fastening members between the contact member and the connector body.

Abstract

The connector has contact element (12) including a rear face (67) on a side opposed to a line of teeth. The rear face is curved convex and placed compared to an internal surface (66) of a body (11) that is curved concave. The contact element is hung to the body by two fixing legs (54) with the line of teeth. The contact element elastically bends between the fixing legs when an end of an electrical cable (23) is pushed towards the line of teeth by screwing a threaded rod (14) with the rear face, which approaches and comes in support against the internal surface of the body.

Description

L'invention a trait aux connecteurs de raccordement pour au moins deux câbles électriques, en particulier pour des câbles de réseau de distribution d'électricité basse tension souterrain.The invention relates to connection connectors for at least two electrical cables, in particular for underground low-voltage power distribution network cables.

On connaît déjà, notamment par le brevet australien 2008243172 , un tel connecteur pour raccorder entre eux quatre câbles électriques.We already know, especially by the Australian patent 2008243172 , such a connector for connecting together four electric cables.

Ce connecteur comporte :

  • un corps en matière conductrice dans lequel est ménagé pour chacun des quatre câbles électriques un logement de réception, ledit corps présentant pour chaque logement deux trous traversant taraudés ;
  • dans chaque trou traversant, une tige filetée d'un organe de serrage, avec l'extrémité distale de la tige filetée qui est tournée vers le logement ; et
  • dans chaque logement un organe de contact en matière conductrice comportant deux rangées de dents chacune orientée transversalement au logement et tournée vers une tige filetée respective.
This connector includes:
  • a body of conductive material in which is provided for each of the four electrical cables a receiving housing, said body having for each housing two threaded through holes;
  • in each through hole, a threaded rod of a clamping member, with the distal end of the threaded rod facing the housing; and
  • in each housing a conductive material contact member having two rows of teeth each oriented transversely to the housing and facing a respective threaded rod.

Ce connecteur est configuré pour recevoir dans chaque logement l'extrémité d'un des câbles à raccorder, dans un espace situé entre les rangées de dents de l'organe de contact et les tiges filetées, et est configuré pour que, par vissage de ces tiges, l'extrémité de câble ainsi reçue dans le logement soit poussée par la tige vers les rangées de dents et qu'une âme conductrice de cette extrémité de câble soit pénétrée par la rangée de dents.This connector is configured to receive in each housing the end of one of the cables to be connected, in a space between the rows of teeth of the contact member and the threaded rods, and is configured so that by screwing these rods, the cable end thus received in the housing is pushed by the rod towards the rows of teeth and a conductive core of this end of cable is penetrated by the row of teeth.

L'invention vise à fournir un connecteur semblable qui soit simple, commode et économique tout en ayant des performances électriques encore meilleures.The invention aims to provide a similar connector that is simple, convenient and economical while having even better electrical performance.

L'invention propose à cet effet un connecteur de raccordement pour au moins deux câbles électriques, comportant :

  • un corps en matière conductrice dans lequel est ménagé pour chaque dit câble électrique un logement de réception, ledit corps présentant pour chaque dit logement au moins un trou traversant taraudé ;
  • dans chaque trou traversant, une tige filetée d'un organe de serrage, avec l'extrémité distale de la tige filetée qui est tournée vers le logement ; et
  • dans chaque dit logement, un organe de contact en matière conductrice comportant une rangée de dents orientée transversalement au logement et tournée vers ladite tige filetée ;
lequel connecteur est configuré pour recevoir une extrémité d'un dit câble dans chaque dit logement, dans un espace situé entre la rangée de dents de l'organe de contact et la tige filetée, est configurée pour que, par vissage de ladite tige, ladite extrémité de câble ainsi reçue dans ledit logement soit poussée par ladite tige vers ladite rangée de dents et qu'une âme conductrice de cette extrémité de câble soit pénétrée par ladite rangée de dents ;
caractérisé en ce qu'au moins un dit organe de contact :
  • comporte sur un côté opposé à ladite rangée de dents une face arrière qui est incurvée convexe et disposée en regard d'une surface interne dudit corps qui est incurvée concave ;
  • est accroché audit corps par deux organes d'accrochage avec ladite rangée de dents qui est disposée entre les deux organes d'accrochage ;
  • est configuré pour que ladite face arrière soit distante d'un écart prédéterminé de ladite surface interne dudit corps en l'absence de sollicitation ; et
  • est configuré pour fléchir élastiquement entre lesdits organes d'accrochage lorsque, par vissage de ladite tige, ladite extrémité de câble est poussée vers ladite rangée de dents, avec ladite face arrière qui se rapproche et vient en appui contre ladite surface interne dudit corps.
The invention proposes for this purpose a connection connector for at least two electrical cables, comprising:
  • a body of conductive material in which is provided for each said electric cable a receiving housing, said body having for each said housing at least one threaded through hole;
  • in each through hole, a threaded rod of a clamping member, with the distal end of the threaded rod facing the housing; and
  • in each said housing, a conductive material contact member having a row of teeth oriented transversely to the housing and facing said threaded rod;
which connector is configured to receive an end of a said cable in each said housing, in a space between the row of teeth of the contact member and the threaded rod, is configured so that, by screwing said rod, said cable end thus received in said housing is pushed by said rod to said row of teeth and a conductor core of this cable end is penetrated by said row of teeth;
characterized in that at least one said contact member:
  • has on a side opposite to said row of teeth a rear face which is convexly curved and disposed facing an inner surface of said body which is curved concave;
  • is hooked to said body by two hooking members with said row of teeth which is arranged between the two fastening members;
  • is configured so that said rear face is spaced a predetermined distance from said inner surface of said body in the absence of bias; and
  • is configured to flex elastically between said hooking members when, by screwing said rod, said cable end is pushed towards said row of teeth, with said rear face which is brought closer and bears against said inner surface of said body.

Grâce au caractère élastique de la flexion de l'organe de contact qui se produit entre les organes d'accrochage lors de la mise en place des câbles, en service l'organe de contact tend à reprendre sa forme initiale.Due to the elastic nature of the bending of the contact member that occurs between the fastening members during the introduction of the cables, in use the contact member tends to return to its original shape.

Par conséquent, si le câble pris en sandwich entre l'organe de contact et la tige filetée tend à se déformer dans le sens où il s'écrase davantage, alors l'organe de contact se déformera sous l'effet de son élasticité pour suivre cette déformation du câble.Therefore, if the cable sandwiched between the contact member and the threaded rod tends to deform in the direction that it crashes further, then the contact member will deform under the effect of its elasticity to follow this deformation of the cable.

Ainsi, malgré une telle déformation du câble, la qualité de contact électrique entre l'âme conductrice du câble et la denture de l'organe de contact sera maintenue.Thus, despite such deformation of the cable, the quality of electrical contact between the conductive core of the cable and the toothing of the contact member will be maintained.

Le connecteur selon l'invention procure ainsi, grâce à un ou plusieurs organes de contact simples à fabriquer, une qualité de continuité électrique particulièrement élevée.The connector according to the invention thus provides, thanks to one or more simple contact members to manufacture, a particularly high quality of electrical continuity.

On notera que le connecteur selon l'invention est particulièrement intéressant pour les câbles électriques de réseaux souterrains de distribution de l'électricité formés par une âme conductrice multibrins recouverte d'une gaine isolante.It will be noted that the connector according to the invention is particularly advantageous for the electric cables of underground electricity distribution networks formed by a stranded conductive core covered with an insulating sheath.

En effet, de tels câbles ont une certaine tendance à s'écraser davantage dans le temps après avoir été serrés, sous l'effet du réarrangement des brins qui forment l'âme conductrice, sous l'effet des cycles d'échauffement et de refroidissement dûs aux variations d'intensité du courant véhiculé par le câble et sous l'effet du fluage de la gaine isolante.Indeed, such cables have a tendency to crash further over time after being tightened, under the effect of the rearrangement of the strands which form the conductive core, under the effect of the heating and cooling cycles due to variations in the intensity of the current carried by the cable and under the effect of the creep of the insulating sheath.

Selon des caractéristiques préférées pour des raisons de simplicité, de commodité et/ou de qualité de résultat obtenu :

  • ladite rangée de dents de dents comporte une interruption centrale avec un premier bloc denté entre un premier organe d'accrochage et l'interruption centrale et avec un second bloc denté entre l'interruption centrale et le second organe d'accrochage ;
  • ledit organe de contact comporte une semelle portant lesdits organes d'accrochage à ses extrémités, ladite semelle formant ladite face arrière et portant ladite rangée de dents du côté opposé à ladite face arrière ;
  • ledit organe de contact comporte deux rangées de dents opposées chacune le long d'un bord longitudinal respectif de ladite semelle ;
  • ladite semelle est en forme de bande courbée convexe du côté de la rangée de dents ;
  • ladite semelle comporte au moins une portion à largeur réduite située entre deux encoches opposées ;
  • ledit corps comporte pour chaque logement deux rainures longitudinales opposées avec lesdits organes d'accrochage dudit organe de contact qui sont des pattes d'accrochage engagées chacune dans une rainure respective ;
  • ledit connecteur comporte dans au moins un dit logement une pluralité de dits organes de contact semblables ;
  • lesdits organes de contact comportent chacun au moins une entretoise saillante orientée suivant la direction longitudinale dudit logement ; et/ou
  • ledit écart prédéterminé est compris entre 0,5 mm et 1 mm.
According to preferred features for reasons of simplicity, convenience and / or quality of result obtained:
  • said row of toothed teeth comprises a central interruption with a first toothed block between a first attachment member and the central interruption and with a second toothed block between the central interruption and the second attachment member;
  • said contact member comprises a soleplate carrying said fastening members at its ends, said soleplate forming said rear face and carrying said row of teeth on the opposite side to said rear face;
  • said contact member comprises two rows of opposing teeth each along a respective longitudinal edge of said sole;
  • said sole is shaped convex curved strip on the side of the row of teeth;
  • said sole comprises at least one portion of reduced width located between two opposite notches;
  • said body comprises for each housing two longitudinal grooves opposite with said latching members of said contact member which are latching lugs each engaged in a respective groove;
  • said connector comprises in at least one said housing a plurality of said similar contact members;
  • said contact members each comprise at least one projecting spacer oriented in the longitudinal direction of said housing; and or
  • said predetermined distance is between 0.5 mm and 1 mm.

L'exposé de l'invention sera maintenant poursuivi par la description détaillée d'un exemple de réalisation, donnée ci-après à titre illustratif et non limitatif, en référence aux dessins annexés. Sur ceux-ci :

  • la figure 1 est une vue en plan très schématique d'un connecteur de raccordement selon l'invention et de deux câbles électriques raccordés par ce connecteur ;
  • la figure 2 est la vue en coupe repérée par II-II sur la figure 1, sans les câbles électriques et avec l'ajout de chaque côté d'un capuchon d'étanchéité à l'eau ;
  • la figure 3 est une vue en élévation du connecteur prise depuis le côté que l'on voit à gauche sur la figure 2 ;
  • la figure 4 est un agrandissement de la portion de la figure 3 repérée par IV, montrant également un câble électrique disposé dans un espace situé entre les dentures des organes de contact et l'extrémité distale des tiges filetées des organes ;
  • la figure 5 est un agrandissement d'une portion de la figure 2 ;
  • les figures 6 et 7 sont respectivement une vue en plan et une vue en perspective de l'un des organes de contact que comporte le connecteur ;
  • la figure 8 est une vue en perspective, prise sous un angle différent de la figure 7, montrant comment sont agencés l'un par rapport à l'autre les trois organes de contact que le connecteur comporte du côté que l'on voit à gauche sur la figure 2 ; et
  • la figure 9 est une vue semblable au centre de la figure 5, mais dans une configuration où la face arrière de l'organe de contact est en appui contre la surface intérieure du corps.
The presentation of the invention will now be continued by the detailed description of an exemplary embodiment, given below by way of illustration and not limitation, with reference to the accompanying drawings. On these:
  • the figure 1 is a very schematic plan view of a connection connector according to the invention and two electrical cables connected by this connector;
  • the figure 2 is the sectional view marked by II-II on the figure 1 , without the electric cables and with the addition of each side of a waterproof cap;
  • the figure 3 is an elevation view of the connector taken from the side that is seen to the left on the figure 2 ;
  • the figure 4 is an enlargement of the portion of the figure 3 marked IV, also showing an electric cable disposed in a space between the teeth of the contact members and the distal end of the threaded rods of the organs;
  • the figure 5 is an enlargement of a portion of the figure 2 ;
  • the Figures 6 and 7 are respectively a plan view and a perspective view of one of the contact members that comprises the connector;
  • the figure 8 is a perspective view, taken from a different angle from the figure 7 , showing how are arranged with respect to each other the three contact members that the connector has on the side that is seen to the left on the figure 2 ; and
  • the figure 9 is a similar view in the center of the figure 5 but in a configuration where the rear face of the contact member bears against the inner surface of the body.

Le connecteur de raccordement 10 illustré sur les figures 1 à 3 comporte un corps 11 en matière conductrice, six organes de contact 12 en matière conductrice, six organes de serrage 13 comportant chacun une tige filetée 14 ainsi qu'un fourreau 15 en matière isolante et étanche à l'eau, relativement souple, dans lequel est disposé le corps 11.The connection connector 10 illustrated on the Figures 1 to 3 comprises a body 11 of conductive material, six contact members 12 of conductive material, six clamping members 13 each comprising a threaded rod 14 and a sleeve 15 of insulating material and waterproof, relatively flexible, in which is arranged the body 11.

Comme on le voit sur la figure 2, le connecteur 10 est prévu pour être associé, de chaque côté, à un capuchon 16 en matière isolante et étanche à l'eau, relativement souple.As we see on the figure 2 , the connector 10 is provided to be associated, on each side, a cap 16 of insulating material and waterproof, relatively flexible.

Le corps 11 comporte une paroi tubulaire 20 et une paroi de séparation centrale 21 venue de matière avec la paroi tubulaire 20. Ici, le corps 11 est en aluminium conformé par filage ou par alésage de chaque côté.The body 11 comprises a tubular wall 20 and a central partition wall 21 integral with the tubular wall 20. Here, the body 11 is made of aluminum shaped by spinning or boring on each side.

Chaque espace entouré par la paroi tubulaire 20 du corps 11 et s'étendant entre la paroi centrale 21 et l'une des extrémités, forme un logement 22 de réception d'un câble électrique tel que le câble électrique 23 illustré sur les figures 1 et 4 ou le câble électrique 24 illustré sur la figure 1.Each space surrounded by the tubular wall 20 of the body 11 and extending between the central wall 21 and one of the ends, forms a housing 22 for receiving an electric cable such as the electric cable 23 shown in FIGS. figures 1 and 4 or the electric cable 24 shown on the figure 1 .

Comme on le voit sur la figure 4, le câble 23 comporte une âme conductrice 25 recouverte par une gaine isolante 26. De même, le câble électrique 24 comporte une âme conductrice recouverte par une gaine isolante.As we see on the figure 4 , the cable 23 comprises a conductive core 25 covered by an insulating sheath 26. Similarly, the electric cable 24 comprises a conductive core covered by an insulating sheath.

Le connecteur de raccordement 10 est prévu pour opérer à la fois un raccordement électrique et un raccordement mécanique des câbles tels que 23 et 24.The connection connector 10 is designed to operate both an electrical connection and a mechanical connection of the cables such as 23 and 24.

Dans la paroi tubulaire 20 du corps 11 sont ménagés six trous traversant taraudés 27 dont le taraudage est conjugué au filetage des tiges 14. Dans chaque trou taraudé 27 est engagé la tige filetée 14 d'un organe de serrage 13, avec l'extrémité distale de chaque tige filetée 14 tournée vers un logement 20.In the tubular wall 20 of the body 11 are formed six threaded through holes 27 whose thread is conjugated to the thread of the rods 14. In each threaded hole 27 is engaged the threaded rod 14 of a clamping member 13, with the distal end each threaded rod 14 facing a housing 20.

Comme on le voit sur les figures 1 et 2, les organes de serrage 13, et donc les trous traversant 27, sont alignés suivant une même direction longitudinale ; et sont régulièrement répartis de chaque côté de la paroi de séparation 21, c'est-à-dire le long de chaque logement 22.As we see on the Figures 1 and 2 , the clamping members 13, and thus the through holes 27, are aligned in the same longitudinal direction; and are regularly distributed on each side of the partition wall 21, that is to say along each housing 22.

Dans chaque logement 22 sont disposés trois organes de contact 12, c'est-à-dire qu'il y a autant d'organes de contact 12 que d'organes de serrage 13.In each housing 22 are arranged three contact members 12, that is to say that there are as many contact members 12 as clamping members 13.

Chaque organe de contact 12 présente une denture 28 formée par deux rangées de dents 29 avec chaque rangée 29 orientée transversalement au logement 22 et tournée vers une respective des tiges filetées 14.Each contact member 12 has a toothing 28 formed by two rows of teeth 29 with each row 29 oriented transversely to the housing 22 and facing a respective one of the threaded rods 14.

Ici, chaque tige filetée 14 fait partie d'une vis métallique 30 qui comporte, en outre de la tige filetée 14, une tête 31 à l'extrémité de la tige filetée 14 opposée à l'extrémité distale.Here, each threaded rod 14 is part of a metal screw 30 which further comprises of the threaded rod 14, a head 31 at the end of the threaded rod 14 opposite to the distal end.

En outre de la vis 30, chaque organe de serrage 13 comporte une coiffe 32 en matière plastique recouvrant la tête 31 de la vis 30 de cet organe de serrage. Chaque coiffe 32 présente à son extrémité distale une tête 33 à section prismatique, ici hexagonale, reliée au reste de la coiffe 32 par une portion frangible 34 configurée pour se rompre sous l'effet d'un couple prédéterminé.In addition to the screw 30, each clamping member 13 comprises a plastic cap 32 covering the head 31 of the screw 30 of this clamping member. Each cap 32 has at its distal end a head 33 with a prismatic section, here hexagonal, connected to the rest of the cap 32 by a frangible portion 34 configured to break under the effect of a predetermined torque.

Pour chaque organe de serrage 13, la tête 31 de la vis 30 et la coiffe 32 sont disposés du côté externe du corps 11. Lorsque l'on fait tourner un organe de serrage 13 dans le sens du vissage, la tige 14 s'enfonce davantage, du côté de son extrémité distale, dans le logement 22 ; et quand l'on fait tourner l'organe de serrage 13 dans le sens du dévissage, la tige 14 recule.For each clamping member 13, the head 31 of the screw 30 and the cap 32 are arranged on the outer side of the body 11. When a clamping member 13 is rotated in the screwing direction, the rod 14 sinks more, on the side of its distal end, in the housing 22; and when the clamp member 13 is rotated in the unscrewing direction, the rod 14 moves back.

Le fourreau 15 dans lequel est disposé le corps 11 est en matière souple moulée. Il comporte une paroi tubulaire 35 qui entoure la paroi tubulaire 20 du corps 11.The sheath 15 in which the body 11 is disposed is made of molded flexible material. It comprises a tubular wall 35 which surrounds the tubular wall 20 of the body 11.

Au droit de chaque trou 27 de la paroi 20 du corps 11, le fourreau 15 présente un trou traversant 36 servant de passage pour la tige filetée 14.At the right of each hole 27 of the wall 20 of the body 11, the sheath 15 has a through hole 36 serving as a passage for the threaded rod 14.

Autour de chaque trou traversant 36, le fourreau 15 comporte une cheminée 37 dont la surface interne est en contact étanche à l'eau avec la surface latérale de la coiffe 32. Pour simplifier le dessin, les cheminées 37 ne sont pas représentées sur la figure 3.Around each through hole 36, the sheath 15 includes a chimney 37 whose inner surface is in watertight contact with the lateral surface of the cap 32. To simplify the drawing, the chimneys 37 are not shown on the drawing. figure 3 .

Grâce à la paroi tubulaire 35 et grâce aux cheminées 37 en contact étanche avec les coiffes 32, le corps 11 est protégé latéralement des entrées d'eau extérieures.Thanks to the tubular wall 35 and through the chimneys 37 in sealed contact with the caps 32, the body 11 is protected laterally from the external water inlets.

Pour compléter la protection du corps 11, le connecteur 10 est prévu pour être associé, comme montré sur la figure 2, à chaque extrémité, à un capuchon 16 pour former une interface étanche à l'eau entre le câble tel que 23 ou 24 et le fourreau 15.To complete the protection of the body 11, the connector 10 is intended to be associated, as shown in FIG. figure 2 at each end, at a cap 16 to form a watertight interface between the cable such as 23 or 24 and the sleeve 15.

Chaque capuchon 16 est en matière souple moulée. Il comporte un corps 40 et un embout 41.Each cap 16 is of molded flexible material. It comprises a body 40 and a tip 41.

Le corps 40 présente, à l'extrémité opposée à l'embout 41, un crantage externe 42 qui est bordé par une nervure annulaire 43.The body 40 has, at the end opposite the end piece 41, an external detent 42 which is bordered by an annular rib 43.

La paroi tubulaire 35 du fourreau 15 saille de chaque côté au-delà du corps 11 avec du côté interne de la partie en saillie un crantage de conformation correspondante à celle du crantage 42.The tubular wall 35 of the sheath 15 protrudes on each side beyond the body 11 with the inner side of the projecting portion conforming notch corresponding to that of the notch 42.

Chaque capuchon 16 se fixe au connecteur 10 par encliquetage sur la partie saillante d'extrémité de la paroi tubulaire 35 jusqu'à ce que la nervure annulaire 43 vienne en butée sur la tranche de la portion saillante.Each cap 16 is fixed to the connector 10 by snapping on the projecting end portion of the tubular wall 35 until the annular rib 43 abuts the edge of the projecting portion.

Chaque embout 41 comporte intérieurement une pluralité de collerettes d'étanchéité à l'eau 44, alignées, ici au nombre de trois.Each nozzle 41 internally comprises a plurality of water-tight sealing flanges 44, in this case three in number.

Les collerettes d'étanchéité sont prévues pour entourer étroitement un câble électrique tel que 23 ou 24.The sealing flanges are intended to tightly surround an electric cable such as 23 or 24.

Le connecteur 10 est configuré pour recevoir une extrémité d'un câble tel que 23 ou 24 dans chaque logement 22, dans un espace situé entre les dentures 28 des organes de contact 12 et les tiges filetées 14, ainsi que montré sur la figure 4. Ensuite, par vissage des organes 13, dans chaque logement 22, pour chaque organe de contact 12, l'extrémité d'un câble tel que 23 ou 24 est poussée par la tige 14 vers la denture 28, et progressivement, pendant que se poursuit le vissage des organes 13, la denture 28 perfore la gaine isolante 26 du câble tel que 23 ou 24 puis pénètre dans l'âme conductrice 25 de ce câble. Lorsque la pénétration de la denture 28 est suffisante, en pratique lorsqu'un couple de serrage prédéterminé est atteint, la portion frangible 34 rompt.The connector 10 is configured to receive one end of a cable such as 23 or 24 in each housing 22, in a space between the teeth 28 of the contact members 12 and the threaded rods 14, as shown in FIG. figure 4 . Then, by screwing the members 13, in each housing 22, for each contact member 12, the end of a cable such as 23 or 24 is pushed by the rod 14 towards the toothing 28, and gradually, while continuing the screwing of the members 13, the toothing 28 perforates the insulating sheath 26 of the cable such as 23 or 24 and then enters the conductive core 25 of this cable. When the penetration of the toothing 28 is sufficient, in practice when a predetermined tightening torque is reached, the frangible portion 34 breaks.

Du fait que la denture 28 a pénétré dans l'âme conductrice telle que 25 du câble tel que 23 ou 24, que les organes de contact 12 sont en matière conductrice et qu'ils sont au contact du corps 11 lui-même en matière conductrice, les âmes conductrices des câbles tels que 23 et 24 sont reliés électriquement via les organes de contact 12 et le corps 11.Since the toothing 28 has penetrated into the conductive core such as cable 23 or 24, the contact members 12 are made of conductive material and are in contact with the body 11 itself of conductive material. , the conductive cores of the cables such as 23 and 24 are electrically connected via the contact members 12 and the body 11.

Le connecteur 10 raccorde également mécaniquement les câbles tels que 23 et 24 puisque ces câbles sont immobilisés par serrage vis-à-vis du corps 11.The connector 10 also mechanically connects the cables such as 23 and 24 since these cables are immobilized by clamping against the body 11.

On va maintenant décrire un organe de serrage 12 à l'appui des figures 6 à 8.We will now describe a clamping member 12 in support of Figures 6 to 8 .

L'organe de contact 12 est fait dans une plaque de métal conducteur emboutie et pliée, ici en laiton à haute limite élastique.The contact member 12 is made of a pressed and folded conductive metal plate, here made of brass with a high elastic limit.

L'organe de contact 12 comporte un étrier denté 50, une entretoise de tête 51 saillant d'un côté de l'étrier 50 et une entretoise de queue 52 saillant de l'étrier 50 du côté opposé.The contact member 12 comprises a toothed caliper 50, a head spacer 51 projecting from one side of the stirrup 50 and a tail spacer 52 projecting from the stirrup 50 on the opposite side.

L'étrier 50 comporte une semelle 53 en forme de bande courbée convexe du côté des rangées de dents 29, portant une rangée de dents 29 le long de chacun de ses deux bords longitudinaux et portant à chaque extrémité une patte d'accrochage 54 au corps 11.The stirrup 50 has a sole 53 in the form of a convex curved strip on the side of rows of teeth 29, carrying a row of teeth 29 along each of its two longitudinal edges and carrying at each end a hooking tab 54 to the body. 11.

Chacune des rangées de dents 29 comporte une interruption centrale 55 avec un bloc denté 56 entre l'une des pattes d'accrochage 54 et l'interruption centrale 55 et un autre bloc denté 56 entre l'autre patte d'accrochage 54 et l'interruption centrale 55.Each of the rows of teeth 29 comprises a central interruption 55 with a toothed block 56 between one of the attachment tabs 54 and the central interruption 55 and another toothed block 56 between the other attachment tab 54 and the central interruption 55.

Dans chaque rangée de dents 29, les blocs dentés 56 sont l'image miroir l'un de l'autre.In each row of teeth 29, the toothed blocks 56 are the mirror image of one another.

Chaque bloc denté 56 est relativement rigide, c'est-à-dire qu'il conserve sa forme lorsqu'un câble tel que 23 ou 24 est pressé contre lui.Each toothed block 56 is relatively rigid, that is to say, it retains its shape when a cable such as 23 or 24 is pressed against it.

La semelle 53 comporte au niveau de l'interruption centrale 55, au voisinage de chaque bloc denté 56, une encoche 57.The sole 53 comprises at the central interruption 55, in the vicinity of each toothed block 56, a notch 57.

Chacune des deux portions 58 de la semelle 53 située entre deux encoches 57 opposées est plus étroite que le reste de la semelle 53.Each of the two portions 58 of the sole 53 located between two opposite notches 57 is narrower than the rest of the sole 53.

L'entretoise de tête 51 et l'entretoise de queue 52 sont chacune orientée suivant la direction longitudinale du logement 22. Elles saillent d'un côté et de l'autre de la semelle 53 au niveau de l'interruption centrale 55.The head spacer 51 and the tail spacer 52 are each oriented in the longitudinal direction of the housing 22. They project from one side and the other of the sole 53 at the central interruption 55.

Plus précisément, elles prennent chacune racine sur une portion de la semelle 53 située entre deux encoches 57.More specifically, they each take root on a portion of the sole 53 located between two notches 57.

L'entretoise de tête 51 présente à son extrémité distale une fourchette 59. L'entretoise de queue forme à son extrémité distale un tenon de même contour que la mortaise 60 délimitée par la fourchette 59.The head spacer 51 has at its distal end a fork 59. The tail spacer forms at its distal end a tenon of the same contour as the mortise 60 delimited by the fork 59.

Les entretoises 51 et 52 sont prévues pour permettre à une série d'organes de contact 12 disposés les uns à la suite des autres d'avoir, pour deux organes de contact 12 voisins, les étriers dentés 50 à une distance prédéterminée l'un de l'autre, comme on le voit sur la figure 8.The spacers 51 and 52 are provided to allow a series of contact members 12 arranged one after the other to have, for two adjacent contact members 12, the toothed stirrups 50 at a predetermined distance from each other. the other, as we see on the figure 8 .

Ici, les étriers 50 de deux organes de contact 12 voisins sont correctement positionnés lorsque le tenon formé par l'entretoise de queue 52 de l'un des organes de contact 12 est entièrement engagé dans la mortaise 60 délimitée par la fourchette 59 située à l'extrémité distale de l'entretoise de tête de l'autre organe de contact 12.Here, the stirrups 50 of two adjacent contact members 12 are correctly positioned when the tenon formed by the tail spacer 52 of one of the contact members 12 is fully engaged in the mortise 60 delimited by the fork 59 located at distal end of the head spacer of the other contact member 12.

Le corps 11 présente, pour chaque logement 22, deux rainures longitudinales 65 chacune en retrait par rapport à la surface interne 66 du corps 11 qui délimite latéralement ce logement 22.The body 11 has, for each housing 22, two longitudinal grooves 65 each recessed relative to the inner surface 66 of the body 11 which laterally delimits the housing 22.

Pour chaque logement 22, les deux rainures 65 sont l'image miroir l'une de l'autre par rapport à un plan sur lequel sont centrés les organes de serrage 13 ou les trous traversant 27 (voir plus particulièrement les figures 3 et 4).For each housing 22, the two grooves 65 are the mirror image of one another with respect to a plane on which the clamping members 13 or the through holes 27 are centered (see more particularly the Figures 3 and 4 ).

Dans le logement 22 que l'on voit à gauche sur la figure 2, le connecteur 10 comporte trois organes de contact 12 disposés les uns par rapport aux autres comme montré sur la figure 8, avec les deux pattes d'accrochage 54 de chaque organe de contact 12 qui sont engagés dans une rainure 65 respective.In compartment 22, which is on the left on the figure 2 , the connector 10 comprises three contact members 12 arranged relative to each other as shown on the figure 8 , with the two hooking lugs 54 of each contact member 12 which are engaged in a groove 65 respectively.

Ainsi, chaque organe de contact 12 est accroché au corps 11 par ses deux pattes 54 avec ses deux rangées de dents 29 qui sont disposées entre les pattes d'accrochage 54.Thus, each contact member 12 is attached to the body 11 by its two lugs 54 with its two rows of teeth 29 which are arranged between the latching lugs 54.

Dans le logement 22 que l'on voit à gauche sur la figure 2, l'organe de contact 12 le plus profond (organe que l'on voit le plus à droite), a l'extrémité distale de son entretoise de tête 51 contre la paroi de séparation 21 du corps 11.In compartment 22, which is on the left on the figure 2 the deepest contact member 12 (the most right-hand member) has the distal end of its head spacer 51 against the partition wall 21 of the body 11.

Cela procure à l'organe de contact 12 le plus profond un positionnement longitudinal par rapport au corps 11 tel que son étrier denté 50 est au droit d'une tige filetée 14.This provides the deepest contact member 12 with longitudinal positioning relative to the body 11 such that its toothed caliper 50 is at the right of a threaded rod 14.

Le positionnement longitudinal procuré par les entretoises 51 et 52 des autres organes de contact 12 est tel que chaque organe de contact 12 a son étrier denté 50 au droit d'une tige filetée 14.The longitudinal positioning provided by the spacers 51 and 52 of the other contact members 12 is such that each contact member 12 has its toothed caliper 50 in line with a threaded rod 14.

La mise en place des organes de contact 12 dans le corps 11 s'effectue en engageant chaque organe de contact 12, entretoise de tête 51 la première, dans le logement 22 alors que chaque patte d'accrochage 54 est engagée dans une rainure longitudinale 65 respective puis en faisant coulisser jusqu'en butée la succession de trois organes de contact 12.The establishment of the contact members 12 in the body 11 is effected by engaging each contact member 12, head spacer 51 first, in the housing 22 while each latching lug 54 is engaged in a longitudinal groove 65 respective, then sliding the succession of three contact members 12 as far as the stop.

Pour que les organes de contact 12 restent en place, la matière de la paroi 20 du corps 11 est déformée pour fermer le débouché de chaque rainure 65 (extrémité que l'on voit à gauche sur la figure 2).So that the contact members 12 remain in place, the material of the wall 20 of the body 11 is deformed to close the outlet of each groove 65 (end that is seen to the left on the figure 2 ).

Les organes de contact 12 que comporte le connecteur 11 du côté que l'on voit à droite sur la figure 2 sont identiques et agencés de la même façon.The contact members 12 that includes the connector 11 on the side that is seen to the right on the figure 2 are identical and arranged in the same way.

Plus généralement, les parties du connecteur 11 situées de part et d'autre de la paroi 21 sont l'image miroir l'une de l'autre.More generally, the parts of the connector 11 located on either side of the wall 21 are the mirror image of one another.

La description qui suit est faite pour l'organe de contact que l'on voit le plus à gauche sur la figure 2 mais il est entendu que cette description vaut également pour les autres organes de contact.The following description is made for the contact organ that we see the most on the left on the figure 2 but it is understood that this description also applies to the other contact organs.

Comme on le voit plus particulièrement sur la figure 4, la face arrière 67 de la semelle 53, c'est-à-dire la face située du côté opposé à la denture 28, est incurvée convexe et disposée en regard de la surface interne 66 du corps 21 qui est incurvée concave.As we see more particularly on the figure 4 , the rear face 67 of the sole 53, that is to say the face located on the opposite side to the toothing 28, is curved convex and disposed opposite the inner surface 66 of the body 21 which is curved concave.

En l'absence de sollicitation (configuration illustrée sur les figures 2 à 5), la face arrière 67 est distante de la surface interne 66 avec entre elles un écart ou jeu prédéterminé J.In the absence of solicitation (illustrated configuration on Figures 2 to 5 ), the rear face 67 is distant from the inner surface 66 with a predetermined gap or clearance between them.

Lorsque, sous l'effet du vissage de l'organe de serrage 13, l'extrémité d'un câble tel que 23 ou 24 est poussée vers la denture 28, l'étrier denté 50 fléchit élastiquement entre les pattes d'accrochage 54 avec la face arrière 67 qui se rapproche et vient en appui contre la surface interne 66 du corps 11, ainsi que montré sur la figure 9.When, under the effect of the tightening of the clamping member 13, the end of a cable such as 23 or 24 is pushed towards the toothing 28, the toothed caliper 50 flexes elastically between the fastening tabs 54 with the rear face 67 which is close to and bears against the inner surface 66 of the body 11, as shown in FIG. figure 9 .

La denture 28 continue alors à pénétrer dans le câble tel que 23 ou 24 et lorsque la pénétration est suffisante, c'est-à-dire lorsque le couple de serrage prédéterminé est atteint, la partie frangible 34 rompt.The toothing 28 then continues to penetrate the cable such as 23 or 24 and when the penetration is sufficient, that is to say when the predetermined tightening torque is reached, the frangible portion 34 breaks.

L'organe de contact 12 est configuré pour que la déformation qu'il subit lorsqu'il fléchit, pour que sa face arrière 67 vienne en appui sur la surface interne 66, soit élastique.The contact member 12 is configured so that the deformation it undergoes when it flexes so that its rear face 67 bears on the inner surface 66 is elastic.

Ainsi, après flexion, l'organe de contact 12 tend à reprendre sa forme initiale.Thus, after bending, the contact member 12 tends to return to its original shape.

Par conséquent, si le câble tel que 23 ou 24 se déforme, par exemple sous l'effet du réarrangement des brins qui forment son âme conductrice, sous l'effet des cycles d'échauffement et de refroidissement dûs aux variations d'intensité du courant véhiculé par le câble et/ou sous l'effet du fluage de la gaine isolante tel que 26 ; et qu'une telle déformation est dans le sens où le câble tel que 23 ou 24 s'écrase davantage entre la denture 28 et la tige filetée 14, alors l'organe de contact 12 se déformera sous l'effet de son élasticité pour suivre cette déformation du câble.Therefore, if the cable such as 23 or 24 deforms, for example under the effect of rearrangement of the strands that form its conductive core, under the effect of heating and cooling cycles due to changes in current intensity conveyed by the cable and / or under the effect of the creep of the insulating sheath such as 26; and such a deformation is in the sense that the cable such as 23 or 24 crushes more between the toothing 28 and the threaded rod 14, then the contact member 12 will deform under the effect of its elasticity to follow this deformation of the cable.

Ainsi, malgré une telle déformation du câble, la qualité de contact électrique entre l'âme conductrice telle que 25 et la denture 28 sera maintenue.Thus, despite such deformation of the cable, the quality of electrical contact between the conductive core such as 25 and the toothing 28 will be maintained.

Ici, l'organe de contact 12 est dimensionné pour que la face arrière 67 vienne en appui sur la surface interne 66 sous une charge correspondant environ à un tiers du couple de serrage prédéterminé pour lequel la portion frangible 34 rompt.Here, the contact member 12 is dimensioned so that the rear face 67 bears on the inner surface 66 under a load corresponding to about one third of the predetermined tightening torque for which the frangible portion 34 breaks.

L'écart J en l'absence de sollicitation est de préférence compris entre 0,5 et 1 mm. L'organe de contact 12 peut ainsi compenser la variation de dimension du câble tel que 23 ou 24 par écrasement, qui est en général de l'ordre de quelques µm à quelques centièmes de mm.The gap J in the absence of stress is preferably between 0.5 and 1 mm. The contact member 12 can thus compensate for the variation in size of the cable such as 23 or 24 by crushing, which is generally of the order of a few μm to a few hundredths of a millimeter.

On notera que l'étrier 50 présente tout à la fois des blocs dentés 56 qui ne se déforment pas pour pouvoir pénétrer correctement dans le câble tel que 23 ou 24 et une capacité de flexion élastique, grâce à l'interruption centrale 55.It will be noted that the stirrup 50 has at the same time toothed blocks 56 which do not deform in order to be able to penetrate correctly into the cable such as 23 or 24 and an elastic bending capacity, thanks to the central interruption 55.

En pratique, lors de la flexion élastique de l'étrier denté 50, ce sont essentiellement les portions 58 à largeur réduite qui se déforment, à la façon d'une charnière.In practice, during the elastic bending of the toothed caliper 50, it is essentially the portions 58 with reduced width that deform, in the manner of a hinge.

La géométrie des encoches 57 permet d'ajuster la capacité de flexion de l'étrier denté 50.The geometry of the notches 57 makes it possible to adjust the bending capacity of the toothed stirrup 50.

Dans l'exemple illustré sur la figure 4, le câble 23 est à section sectorale, c'est-à-dire à contour en secteur angulaire. La denture 28 est configurée pour coopérer également avec des câbles à section ronde.In the example shown on the figure 4 , the cable 23 is sectional sector, that is to say, in outline angular sector. The toothing 28 is configured to cooperate also with round section cables.

Dans des variantes non illustrées, la denture 28 formée par deux rangées de dents 29 est remplacée par une denture formée par une seule rangée de dents ou alors par davantage que deux rangées de dents, par exemple trois rangées de dents ; et/ou la conformation des dents est différente, par exemple pour coopérer exclusivement avec des câbles ronds ou pour coopérer avec des câbles nus ou dont l'extrémité a été dénudée.In variants not shown, the toothing 28 formed by two rows of teeth 29 is replaced by a toothing formed by a single row of teeth or more than two rows of teeth, for example three rows of teeth; and / or the conformation of the teeth is different, for example to cooperate exclusively with round cables or to cooperate with bare cables or the end of which has been stripped.

Dans l'exemple illustré, chaque organe de contact 12 est accroché au corps 21 par deux pattes d'accrochage 54. Dans des variantes non illustrées, les pattes d'accrochage sont remplacées par d'autres organes d'accrochage qui rentrent dans une partie creuse du corps du connecteur, par exemple un ergot qui rentre dans un trou borgne du corps et/ou l'organe d'accrochage que comporte le corps du connecteur est plein plutôt que creux, par exemple une nervure longitudinale.In the example illustrated, each contact member 12 is hooked to the body 21 by two latching lugs 54. In variants not shown, the latching lugs are replaced by other latching members which fit into a part hollow body of the connector, for example a lug that enters a blind hole of the body and / or the fastening member that includes the connector body is full rather than hollow, for example a longitudinal rib.

Dans l'exemple illustré, chaque organe de contact 12 comporte deux entretoises de positionnement saillant d'un côté de l'étrier denté et du côté opposé de l'étrier denté de façon centrale. Dans des variantes non illustrées, les entretoises sont conformées différemment, par exemple sans fourchette d'extrémité tel que 59, sont présentes d'un seul côté, sont plusieurs sur un même côté et/ou sont supprimées avec le positionnement longitudinal qui s'effectue par exemple grâce aux organes d'accrochage entre l'organe de contact et le corps du connecteur.In the illustrated example, each contact member 12 comprises two positioning spacers projecting from one side of the toothed yoke and from the opposite side of the centrally toothed yoke. In non-illustrated variants, the spacers are shaped differently, for example without an end fork such as 59, are present on one side, are several on the same side and / or are removed with the longitudinal positioning that takes place. for example thanks to the fastening members between the contact member and the connector body.

Dans l'exemple illustré, le connecteur 10 est prévu pour raccorder de façon coaxiale deux câbles tels que 23 et 24 d'un réseau de distribution d'électricité souterrain basse tension, les câbles étant à protéger contre les infiltrations d'eau. Dans des variantes non illustrées :

  • aucune mesure n'est prise pour protéger les câbles contre les infiltrations d'eau, le corps telle que 21 n'étant recouvert par aucun fourreau tel que 15 et la paroi de séparation telle que 21 venue de matière est remplacée par une paroi rapportée ou par une simple butée ;
  • les logements tels que 22 ne sont pas dans le prolongement l'un de l'autre mais disposés côte à côte avec leur nombre qui est de deux ou davantage que deux, par exemple quatre logements côte à côte ; et/ou
  • pour chaque logement tel que 22, le nombre d'organes de contact tel que 12 et d'organes de serrage tel que 13 est différent de trois, par exemple deux ou quatre.
In the illustrated example, the connector 10 is provided for coaxially connecting two cables such as 23 and 24 of a low-voltage underground electricity distribution network, the cables being to be protected against water infiltration. In non-illustrated variants:
  • no action is taken to protect the cables against water infiltration, the body such as 21 being covered by no sheath such 15 and the dividing wall such as 21 material is replaced by a wall insert or a simple stop;
  • dwellings such as 22 are not in line with one another but are arranged side by side with their number being two or more than two, for example four dwellings side by side; and or
  • for each housing such as 22, the number of contact members such as 12 and clamping members such as 13 is different from three, for example two or four.

De nombreuses autres variantes sont possibles en fonction des circonstances, et l'on rappelle à cet égard que l'invention ne se limite pas aux exemples décrits et représentés.Many other variants are possible depending on the circumstances, and it is recalled in this regard that the invention is not limited to the examples described and shown.

Claims (10)

Connecteur de raccordement pour au moins deux câbles électriques (23, 24), comportant : - un corps (11) en matière conductrice dans lequel est ménagé pour chaque dit câble électrique (23, 24) un logement de réception (22), ledit corps (11) présentant pour chaque dit logement (22) au moins un trou traversant taraudé (27) ; - dans chaque trou traversant (27), une tige filetée (14) d'un organe de serrage (13), avec l'extrémité distale de la tige filetée (14) qui est tournée vers le logement (22) ; et - dans chaque dit logement (22), un organe de contact (12) en matière conductrice comportant une rangée de dents (29) orientée transversalement au logement (22) et tournée vers ladite tige filetée (14) ; lequel connecteur est configuré pour recevoir une extrémité d'un dit câble (23, 24) dans chaque dit logement (22), dans un espace situé entre la rangée de dents (29) de l'organe de contact (12) et la tige filetée (14), est configurée pour que, par vissage de ladite tige (14), ladite extrémité de câble (23, 24) ainsi reçue dans ledit logement (22) soit poussée par ladite tige (14) vers ladite rangée de dents (29) et qu'une âme conductrice (25) de cette extrémité de câble soit pénétrée par ladite rangée de dents (29) ;
caractérisé en ce qu'au moins un dit organe de contact (12) : - comporte sur un côté opposé à ladite rangée de dents (29) une face arrière (67) qui est incurvée convexe et disposée en regard d'une surface interne (66) dudit corps (11) qui est incurvée concave ; - est accroché audit corps (11) par deux organes d'accrochage (54) avec ladite rangée de dents (29) qui est disposée entre les deux organes d'accrochage (54) ; - est configuré pour que ladite face arrière (67) soit distante d'un écart prédéterminé (J) de ladite surface interne (66) dudit corps (11) en l'absence de sollicitation ; et - est configuré pour fléchir élastiquement entre lesdits organes d'accrochage (54) lorsque, par vissage de ladite tige (14), ladite extrémité de câble (23, 24) est poussée vers ladite rangée de dents (29), avec ladite face arrière (67) qui se rapproche et vient en appui contre ladite surface interne (66) dudit corps (11). Connection connector for at least two electrical cables (23, 24), comprising: - A body (11) of conductive material in which is provided for each said electric cable (23, 24) a receiving housing (22), said body (11) having for each said housing (22) at least one threaded through hole (27); - in each through hole (27), a threaded rod (14) of a clamping member (13), with the distal end of the threaded rod (14) facing the housing (22); and - In each said housing (22), a contact member (12) of conductive material having a row of teeth (29) oriented transversely to the housing (22) and facing said threaded rod (14); which connector is configured to receive an end of a said cable (23, 24) in each said housing (22), in a space between the row of teeth (29) of the contact member (12) and the rod threaded (14), is configured so that, by screwing said rod (14), said cable end (23, 24) thus received in said housing (22) is pushed by said rod (14) to said row of teeth ( 29) and a conductive core (25) of this cable end is penetrated by said row of teeth (29);
characterized in that at least one said contact member (12): - has on a side opposite to said row of teeth (29) a rear face (67) which is convexly curved and disposed facing an inner surface (66) of said body (11) which is curved concave; - is hooked to said body (11) by two hooking members (54) with said row of teeth (29) which is disposed between the two fastening members (54); - is configured so that said rear face (67) is spaced a predetermined distance (J) from said inner surface (66) of said body (11) in the absence of bias; and - is configured to flex elastically between said fastening members (54) when, by screwing said rod (14), said end of cable (23, 24) is pushed towards said row of teeth (29), with said rear face (67) which approaches and abuts against said inner surface (66) of said body (11). Connecteur selon la revendication 1, caractérisé en ce que ladite rangée de dents comporte une interruption centrale (55) avec un premier bloc denté (56) entre un premier organe d'accrochage (54) et l'interruption centrale (55) et avec un second bloc denté (56) entre l'interruption centrale (55) et le second organe d'accrochage (54).Connector according to claim 1, characterized in that said row of teeth comprises a central interruption (55) with a first toothed block (56) between a first attachment member (54) and the central interruption (55) and with a second toothed block (56) between the central interruption (55) and the second attachment member (54). Connecteur selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que ledit organe de contact (12) comporte une semelle (53) portant lesdits organes d'accrochage (54) à ses extrémités, ladite semelle (53) formant ladite face arrière (67) et portant ladite rangée de dents (29) du côté opposé à ladite face arrière (67).Connector according to any one of claims 1 or 2, characterized in that said contact member (12) comprises a sole (53) carrying said fastening members (54) at its ends, said sole (53) forming said face rearward (67) and carrying said row of teeth (29) on the opposite side to said rear face (67). Connecteur selon la revendication 3, caractérisé en ce que ledit organe de contact (12) comporte deux rangées de dents (29) opposées chacune le long d'un bord longitudinal respectif de ladite semelle (53).Connector according to claim 3, characterized in that said contact member (12) has two rows of teeth (29) each opposed along a respective longitudinal edge of said sole (53). Connecteur selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que ladite semelle (53) est en forme de bande courbée convexe du côté de la rangée de dents (29).Connector according to any one of claims 3 or 4, characterized in that said sole (53) is shaped curved convex band side of the row of teeth (29). Connecteur selon l'une quelconque des revendications 3 à 5, caractérisé en ce que ladite semelle (53) comporte au moins une portion (58) à largeur réduite située entre deux encoches opposées (57).Connector according to any one of claims 3 to 5, characterized in that said sole (53) comprises at least one portion (58) with reduced width located between two opposite notches (57). Connecteur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ledit corps (11) comporte pour chaque logement deux rainures longitudinales opposées (65) avec lesdits organes d'accrochage dudit organe de contact (12) qui sont des pattes d'accrochage (54) engagées chacune dans une rainure (65) respective.Connector according to any one of claims 1 to 6, characterized in that said body (11) comprises for each housing two opposite longitudinal grooves (65) with said hooking means of said contact member (12) which are claws d hooking (54) each engaged in a respective groove (65). Connecteur selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comporte dans au moins un dit logement une pluralité de dits organes de contact (12) semblables.Connector according to any one of claims 1 to 6, characterized in that it comprises in at least one housing said a plurality of said contact members (12) similar. Connecteur selon la revendication 8, caractérisé en ce que lesdits organes de contact (12) comportent chacun au moins une entretoise (51, 52) saillante orientée suivant la direction longitudinale dudit logement (12).Connector according to claim 8, characterized in that said contact members (12) each comprise at least one strut (51, 52) protruding oriented in the longitudinal direction of said housing (12). Connecteur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que ledit écart prédéterminé (J) est compris entre 0,5 mm et 1 mm.Connector according to any one of claims 1 to 9, characterized in that said predetermined distance (J) is between 0.5 mm and 1 mm.
EP13165632.4A 2012-06-22 2013-04-26 Coupling connector for at least two electrical cables Active EP2677602B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1255947A FR2992481B1 (en) 2012-06-22 2012-06-22 CONNECTION CONNECTOR FOR AT LEAST TWO ELECTRIC CABLES

Publications (2)

Publication Number Publication Date
EP2677602A1 true EP2677602A1 (en) 2013-12-25
EP2677602B1 EP2677602B1 (en) 2014-07-16

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ID=48182837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13165632.4A Active EP2677602B1 (en) 2012-06-22 2013-04-26 Coupling connector for at least two electrical cables

Country Status (3)

Country Link
EP (1) EP2677602B1 (en)
ES (1) ES2511648T3 (en)
FR (1) FR2992481B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3083376A1 (en) * 2018-06-27 2020-01-03 Upeca ELECTRICAL CONNECTION TERMINAL WITH TIGHTENING ASSEMBLY
CN117317963A (en) * 2023-11-30 2023-12-29 湖南工程学院 Elevator cable installation assembly and installation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269465A (en) * 1979-12-26 1981-05-26 Amp Incorporated Splice connector for aluminum wire
WO1997028577A1 (en) * 1996-01-30 1997-08-07 The Whitaker Corporation Power line cable connector
AU2008243172A1 (en) 2008-11-07 2010-05-27 Sicame Australia Pty Ltd A Mains-Power Electrical Connector
AU2009202376B2 (en) * 2006-03-15 2011-12-01 Cable Accessories (Australia) Pty. Ltd. Cable connection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269465A (en) * 1979-12-26 1981-05-26 Amp Incorporated Splice connector for aluminum wire
WO1997028577A1 (en) * 1996-01-30 1997-08-07 The Whitaker Corporation Power line cable connector
AU2009202376B2 (en) * 2006-03-15 2011-12-01 Cable Accessories (Australia) Pty. Ltd. Cable connection device
AU2008243172A1 (en) 2008-11-07 2010-05-27 Sicame Australia Pty Ltd A Mains-Power Electrical Connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3083376A1 (en) * 2018-06-27 2020-01-03 Upeca ELECTRICAL CONNECTION TERMINAL WITH TIGHTENING ASSEMBLY
CN117317963A (en) * 2023-11-30 2023-12-29 湖南工程学院 Elevator cable installation assembly and installation method
CN117317963B (en) * 2023-11-30 2024-02-20 湖南工程学院 Elevator cable installation assembly and installation method

Also Published As

Publication number Publication date
ES2511648T3 (en) 2014-10-23
FR2992481B1 (en) 2015-05-29
FR2992481A1 (en) 2013-12-27
EP2677602B1 (en) 2014-07-16

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