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EP1209762A1 - Electrical connector for connecting a cable and method for manufacturing the same - Google Patents

Electrical connector for connecting a cable and method for manufacturing the same Download PDF

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Publication number
EP1209762A1
EP1209762A1 EP01420227A EP01420227A EP1209762A1 EP 1209762 A1 EP1209762 A1 EP 1209762A1 EP 01420227 A EP01420227 A EP 01420227A EP 01420227 A EP01420227 A EP 01420227A EP 1209762 A1 EP1209762 A1 EP 1209762A1
Authority
EP
European Patent Office
Prior art keywords
tongue
connector according
connector
teeth
blank
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.)
Withdrawn
Application number
EP01420227A
Other languages
German (de)
French (fr)
Inventor
Etienne Benoist
Laurent Rageau
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.)
Mecelec Industries SAS
Original Assignee
Mecelec Industries SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mecelec Industries SAS filed Critical Mecelec Industries SAS
Publication of EP1209762A1 publication Critical patent/EP1209762A1/en
Withdrawn legal-status Critical Current

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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/05—Crimping apparatus or processes with wire-insulation stripping
    • 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
    • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
    • H01R4/2483—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts penetrating the area under the screw tip

Definitions

  • the present invention relates to connectors electrical cables, and it concerns more particularly a connector which makes the connection a cable by perforating the insulating sheath of this cable, which makes it possible to get rid of a prior operation of stripping, as well as a method of manufacturing such connector.
  • a connector using the same connection principle, but which includes a base fixing and, extending above this base, a tongue which is provided with perforation teeth and receives a stirrup.
  • the rectangular base is intended for be placed in a housing, against the bottom thereof, in being slid and then snapped behind ribs which lock the connector in this position.
  • the base and the tongue are formed in the same blank of sheet metal, cut so that the base is extended by the tongue.
  • the latter is folded over the base, which results in the formation of microcracks and degradation of the electrical connection between the base and the tongue. Also was it necessary to provide a weld associating the end folded from the tongue to the base, and thereby achieving the electrical contact required.
  • the invention therefore aims to reduce the width of the sheet a tongue in which is formed a toothing of perforation.
  • the invention relates to a connector for the connection of a conductive cable with a sheath insulating, this connector comprising a sheet blank in which a tongue is formed and, on this tongue, a perforation teeth, said tongue being intended to receive a bracket with a cable clamping screw against the toothing for perforating the insulating sheath, characterized in that the teeth are formed by at least one punctured hole in the tongue.
  • a connector according to the invention is illustrated, in view exploded, in Figure 1. It has three main elements, namely a base 1, a bracket 2 and a fuse holder 3.
  • the base 1 is obtained by forming a sheet blank of a all in one piece, cut so as to have the general shape of a band.
  • the base 1 has two transverse folds 4 and 5, beyond which extend end portions 6 and 7, rectangular and substantially parallel to each other.
  • a tongue 9 is cut from this base 6, according to the length of it.
  • the base 6 extends horizontally and forms the lower part of the connector, it being understood that this is not there that a convention, the orientation of the connector in place can be completely arbitrary.
  • transverse folds 10 and 11 are formed in the tongue 9, to near its base, so that its central part extends away from the base 6, substantially parallel thereto.
  • This central part 12 has three punctures 13 arranged along the median and longitudinal line A-A 'of the tongue 9, each of them being provided with four teeth 14, directed upwards, which are part of a set of teeth 15.
  • the tongue 9 ends with a part 16 curved towards the base 6. It is intended to receive the bracket 2, in extruded aluminum, placed at the level of the part central 12, so that the clamping screw 17, with head breakable, with which it is provided, moves towards the tip of teeth 14 when screwed.
  • the tongue 9 gives way to a slot 18 delimited by two fixing lugs 19 which form a fork ending at the end 8.
  • two fixing lugs 21 extend on each side of the fold 4.
  • the fuse holder On the upper face of the end portion 7, which extends above the base 6, the fuse holder is welded 3.
  • the latter has two substantially vertical walls 22, which are parallel to each other and connected elastically by an annular portion 23, so as to jointly delimit a slot 24, widening upwards, capable of receiving a knife-shaped terminal of a fuse.
  • the two walls 22 are also connected by an elastic ring 25, open, which is willing to participate in the stiffness that occurs when the slot 24 is spread.
  • the end portion 7 has a hole 26 for receiving a stud 27 also housed in a hole 28 drilled in the fuse holder 3.
  • a sheet blank from a plate made of material conductor, for example copper, aluminum or a copper or aluminum based alloy.
  • the 13 punctures are then drilled using a punch 29 with a conical head, illustrated in Figure 3. Indeed, it was found that, from surprisingly, such a punch made it possible to obtain, at the level of each punctured 13, a substantially regular toothing, with four teeth. Then the sheet blank is put in shape by successive folding, until the base 1 is obtained.
  • punctures 13 can be formed before or after the cutting operation the shaping operation. They can also be performed simultaneously with one or the other of these two operations.
  • the fuse holder 3 is also obtained by cutting and shaping of a sheet blank.
  • the base 1 and the fuse holder 3 are assembled by welding, after fitting the stud 27 in the holes 26 and 28.
  • To complete the construction of the connector there remains more so than to provide it with the elastic ring 25 and the bracket 2 provided with the clamping screw 17.
  • the tongue 9 is successively tilted up around fold 10 (arrow F), which allows you to put on the stirrup 2, then folded back to its initial position.
  • the connector thus produced is placed in a hollow housing, delimited by the walls of a support 30, seen in section, comprising four ribs 31 and 32, parallel to the bottom 33 of this housing.
  • the two ribs 31 are respectively arranged at the two corners of the same end of the housing, while the ribs 32, offset axially with respect to the ribs 31, each extend at from one of the two side walls of this housing.
  • the bottom 33 has two holes 34 located at the right of the ribs 31.
  • the base 6 is placed between the bottom 33 and the ribs 31 and 32 which thus retain the connector in its housing.
  • the connector is installed on the support 30 by sliding, at first, the two fixing lugs 21 each in a hole 34, under a rib 31, then, in a second time, by folding the base 6 against the bottom 33, until that the two fixing lugs 19 snap behind the ribs 32.
  • a fuse 35 is connected to the connector by one, referenced 36, of its two terminals, which has the form general of a knife and is inserted into the slot 24.
  • This clamping screw 17 presses the conductive cable 37 against the teeth 14, which, from this fact, anchor in the metallic core of it in perforating the insulating sheath 38.
  • a connector according to a variant of realization of the invention presents punctures 39 which each have two teeth 40 and have been obtained by a punch 41 illustrated in FIG. 6.
  • the head of this punch 41 has two sections delimiting instead of their intersection a end edge 42.
  • the head of the punch used to form the punctures may have more than two sides, for example three or four, which jointly delimit a point.
  • the punch 29 with conical head has the advantage of being particularly simple.
  • the connector can be formed in a single sheet blank, although the use of two sheet blanks, shape to obtain the base 1 and the fuse holder 3, then welded, is advantageous insofar as it makes it possible to reduce the importance of the material falls which result from their cutting in a plate. For example, it is particularly easy to place side by side, on a sheet of material first, so as to optimize the use of it, the cutting plots of several bases 1, since these lines delimit substantially bands.
  • punctures which are aligned along the line median and longitudinal of the tongue in the examples previous, can be arranged differently. They can, by example, be alternately distributed on either side of this midline or slightly offset to one side of it.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The connector has a flat sheet with a raised tongue section placed in a stirrup section. The cable to be connected is placed in the stirrup and a screw (17) turned. Toothed sections (15) in the flat sheet section pierce the cable isolating sleeve. The teeth are formed in the raised tongue section (13).

Description

La présente invention se rapporte aux connecteurs électriques pour le raccordement de câbles, et elle concerne plus particulièrement un connecteur qui réalise la connexion d'un câble par perforation de la gaine isolante de ce câble, ce qui permet de s'affranchir d'une opération préalable de dénudage, ainsi qu'un procédé de fabrication d'un tel connecteur.The present invention relates to connectors electrical cables, and it concerns more particularly a connector which makes the connection a cable by perforating the insulating sheath of this cable, which makes it possible to get rid of a prior operation of stripping, as well as a method of manufacturing such connector.

Il est connu de la demande de brevet FR-A1-2 625 845 un connecteur comprenant une semelle qui est pourvue d'une denture et reçoit un étrier muni d'une vis de serrage. Une extrémité du câble à connecter est introduite dans l'étrier, et la vis de serrage est vissée de manière à presser suffisamment ce câble contre la denture pour que cette dernière perfore la gaine isolante et s'ancre dans l'âme métallique du câble. Ce système donne pleine satisfaction du point de vue de la qualité de la connexion électrique obtenue, tout en permettant de se passer d'une opération préalable de dénudage.It is known from patent application FR-A1-2 625 845 a connector comprising a sole which is provided with a teeth and receives a stirrup fitted with a clamping screw. A end of the cable to be connected is introduced into the bracket, and the clamping screw is screwed so as to press enough this cable against the teeth so that the latter perforates the insulating sheath and anchors in the metallic core of the cable. This system gives full satisfaction from the point of view the quality of the electrical connection obtained, while allowing to do without a prior stripping operation.

On connaít, par ailleurs, un connecteur utilisant le même principe de raccordement, mais qui comporte une embase de fixation et, s'étendant au-dessus de cette embase, une languette qui est munie d'une denture de perforation et reçoit un étrier. L'embase, de forme rectangulaire, est destinée à être placée dans un logement, contre le fond de celui-ci, en étant glissée puis enclenchée derrière des nervures qui bloquent le connecteur dans cette position.We also know a connector using the same connection principle, but which includes a base fixing and, extending above this base, a tongue which is provided with perforation teeth and receives a stirrup. The rectangular base is intended for be placed in a housing, against the bottom thereof, in being slid and then snapped behind ribs which lock the connector in this position.

L'embase et la languette sont formées dans un même flan de tôle, découpé pour que l'embase se prolonge par la languette. Cette dernière est repliée sur l'embase, ce qui entraíne la formation de microfissures et une dégradation de la liaison électrique entre l'embase et la languette. Aussi a-t-il fallu prévoir une soudure associant l'extrémité rabattue de la languette à l'embase, et réalisant par là même le contact électrique requis.The base and the tongue are formed in the same blank of sheet metal, cut so that the base is extended by the tongue. The latter is folded over the base, which results in the formation of microcracks and degradation of the electrical connection between the base and the tongue. Also was it necessary to provide a weld associating the end folded from the tongue to the base, and thereby achieving the electrical contact required.

Afin de réduire le coût d'un tel connecteur en supprimant la soudure et en réduisant la quantité de tôle employée, il a été imaginé de découper la languette directement dans l'embase. Mais, comme le profil de la denture est, quant à lui, découpé dans les deux bords latéraux de la languette, cela ne peut se faire sans élargir cette embase, ce qui n'est pas souhaitable car cela conduirait à modifier les dimensions des logements de réception des connecteurs.In order to reduce the cost of such a connector by removing welding and by reducing the amount of sheet metal used, it was imagined to cut the tongue directly in the base. But, as the profile of the teeth is, as for him, cut in the two lateral edges of the tongue, this cannot be done without widening this base, which is not not desirable as this would lead to changing the dimensions receptacles for receiving connectors.

L'invention a donc pour but de réduire la largeur de tôle d'une languette dans laquelle est formée une denture de perforation.The invention therefore aims to reduce the width of the sheet a tongue in which is formed a toothing of perforation.

A cet effet l'invention a pour objet un connecteur pour le raccordement d'un câble conducteur garni d'une gaine isolante, ce connecteur comportant un flan de tôle dans lequel sont formées une languette et, sur cette languette, une denture de perforation, ladite languette étant destinée à recevoir un étrier muni d'une vis de serrage du câble contre la denture pour perforer la gaine isolante, caractérisé en ce que la denture est formée par au moins un crevé percé dans la languette.To this end the invention relates to a connector for the connection of a conductive cable with a sheath insulating, this connector comprising a sheet blank in which a tongue is formed and, on this tongue, a perforation teeth, said tongue being intended to receive a bracket with a cable clamping screw against the toothing for perforating the insulating sheath, characterized in that the teeth are formed by at least one punctured hole in the tongue.

Selon d'autre caractéristique de ce connecteur :

  • la languette est découpée dans le flan de tôle ;
  • le flan de tôle définit deux pattes de fixation qui s'étendent chacun d'un côté de la languette ;
  • plusieurs crevés sont répartis le long d'une ligne longitudinale et sensiblement médiane de la languette ;
  • le crevé forme deux à quatre dents ;
  • outre les premiers moyens de raccordement formés par la languette munie de l'étrier, il comporte des deuxièmes moyens de raccordement qui comprennent une fente délimitée par deux parois reliées élastiquement pour recevoir une borne en forme de couteau, d'un fusible ;
  • le flan de tôle présente la forme générale d'une bande comportant deux plis transversaux entre des première et deuxième portions d'extrémité, sensiblement parallèles, du flan de tôle, la languette étant formée dans la première portion d'extrémité et s'étendant selon une direction générale sensiblement parallèle à celle de la bande, les deuxièmes moyens de raccordement étant rapportés sur celle des deux faces de la deuxième portion qui est tournée à l'opposé de la première portion ;
  • la deuxième portion comporte des troisièmes moyens de raccordement provisoire, formés d'une tige dirigée à l'opposé de la première portion ;
  • la largeur de la languette est comprise entre 6 et 12 mm.
According to another characteristic of this connector:
  • the tongue is cut from the sheet blank;
  • the sheet blank defines two fixing lugs which each extend on one side of the tongue;
  • several punctures are distributed along a longitudinal and substantially median line of the tongue;
  • the punctured forms two to four teeth;
  • in addition to the first connection means formed by the tongue provided with the bracket, it comprises second connection means which comprise a slot delimited by two walls elastically connected to receive a knife-shaped terminal, of a fuse;
  • the sheet blank has the general shape of a strip comprising two transverse folds between first and second end portions, substantially parallel, of the sheet blank, the tongue being formed in the first end portion and extending along a general direction substantially parallel to that of the strip, the second connection means being attached to that of the two faces of the second portion which is turned away from the first portion;
  • the second portion comprises third temporary connection means, formed of a rod directed opposite the first portion;
  • the width of the tongue is between 6 and 12 mm.

L'invention a également pour objet un procédé de fabrication d'un connecteur tel que défini ci-dessus dans lequel :

  • on découpe le flan de tôle de manière à ce qu'il délimite une languette ; et
  • on forme ce flan de tôle pour lui donner sa forme définitive,
caractérisé en ce qu'on perce au moins un crevé garni de dents, dans la languette, par enfoncement d'un poinçon.The subject of the invention is also a method of manufacturing a connector as defined above in which:
  • the sheet metal blank is cut so that it delimits a tongue; and
  • we form this sheet metal blank to give it its final shape,
characterized in that at least one punctured with teeth is pierced in the tongue by driving in a punch.

Selon d'autres caractéristiques de ce procédé :

  • on utilise un poinçon dont la tête présente la forme d'une pointe sensiblement conique ;
  • on soude sur le flan de tôle lesdits deuxièmes moyens de raccordement.
According to other characteristics of this process:
  • a punch is used, the head of which has the shape of a substantially conical point;
  • said second connection means are welded to the sheet blank.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins dans lesquels :

  • la figure 1 est une vue éclatée, en perspective, d'un connecteur conforme à l'invention ;
  • la figure 2 est une vue agrandie d'une partie du connecteur de la figure 1 ;
  • la figure 3 est une vue en perspective de la tête d'un poinçon employé dans le procédé de fabrication du connecteur des figures 1 et 2 ;
  • la figure 4 est une vue en élévation latérale du connecteur des figures 1 et 2, assemblé, monté sur un support et raccordant un câble à une borne d'un fusible ;
  • la figure 5 est une vue en perspective d'un connecteur selon une variante de réalisation de l'invention, dépourvu de son étrier et assemblé ; et
  • la figure 6 est une vue en perspective de la tête d'un poinçon employé dans le procédé de fabrication du connecteur de la figure 5.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the drawings in which:
  • Figure 1 is an exploded perspective view of a connector according to the invention;
  • Figure 2 is an enlarged view of part of the connector of Figure 1;
  • Figure 3 is a perspective view of the head of a punch used in the method of manufacturing the connector of Figures 1 and 2;
  • Figure 4 is a side elevational view of the connector of Figures 1 and 2, assembled, mounted on a support and connecting a cable to a terminal of a fuse;
  • Figure 5 is a perspective view of a connector according to an alternative embodiment of the invention, devoid of its bracket and assembled; and
  • FIG. 6 is a perspective view of the head of a punch used in the method of manufacturing the connector of FIG. 5.

Un connecteur conforme à l'invention est illustré, en vue éclatée, à la figure 1. Il comporte trois éléments principaux, à savoir un socle 1, un étrier 2 et un porte-fusible 3.A connector according to the invention is illustrated, in view exploded, in Figure 1. It has three main elements, namely a base 1, a bracket 2 and a fuse holder 3.

Le socle 1 est obtenu par formage d'un flan de tôle d'un seul tenant, découpé de manière à présenter la forme générale d'une bande. Le socle 1 comporte deux plis transversaux 4 et 5, au-delà desquels s'étendent des portions d'extrémités 6 et 7, rectangulaires et sensiblement parallèles entre elles.The base 1 is obtained by forming a sheet blank of a all in one piece, cut so as to have the general shape of a band. The base 1 has two transverse folds 4 and 5, beyond which extend end portions 6 and 7, rectangular and substantially parallel to each other.

A l'extrémité libre 8 de la portion 6 qui forme embase, une languette 9 est découpée dans cette embase 6, selon la longueur de celle-ci.At the free end 8 of the portion 6 which forms a base, a tongue 9 is cut from this base 6, according to the length of it.

Pour des raisons de commodité, il sera considéré par la suite que l'embase 6 s'étend horizontalement et forme la partie inférieure du connecteur, étant entendu qu'il ne s'agit là que d'une convention, l'orientation du connecteur en place pouvant être tout-à-fait quelconque.For reasons of convenience, it will be considered by the following that the base 6 extends horizontally and forms the lower part of the connector, it being understood that this is not there that a convention, the orientation of the connector in place can be completely arbitrary.

On s'intéresse maintenant plus particulièrement à la figure 2, qui est une vue agrandie de la partie de l'embase 6 dans laquelle est découpée la languette 9.We are now more particularly interested in the Figure 2, which is an enlarged view of the part of the base 6 from which the tongue 9 is cut.

Deux plis transversaux 10 et 11, inversés l'un par rapport à l'autre, sont formés dans la languette 9, à proximité de sa base, de sorte que sa partie centrale s'étend à l'écart de l'embase 6, sensiblement parallèlement à celle-ci. Cette partie centrale 12 comporte trois crevés 13 disposés selon la ligne médiane et longitudinale A-A' de la languette 9, chacun d'entre eux étant pourvu de quatre dents 14, dirigées vers le haut, qui font partie d'une denture 15. La languette 9 se termine par une partie 16 recourbée vers l'embase 6. Elle est destinée à recevoir l'étrier 2, en aluminium extrudé, venant se placer au niveau de la partie centrale 12, de manière à ce que la vis de serrage 17, à tête sécable, dont il est muni, se déplace en direction de la pointe des dents 14 lorsqu'elle est vissée.Two transverse folds 10 and 11, inverted one by relative to each other, are formed in the tongue 9, to near its base, so that its central part extends away from the base 6, substantially parallel thereto. This central part 12 has three punctures 13 arranged along the median and longitudinal line A-A 'of the tongue 9, each of them being provided with four teeth 14, directed upwards, which are part of a set of teeth 15. The tongue 9 ends with a part 16 curved towards the base 6. It is intended to receive the bracket 2, in extruded aluminum, placed at the level of the part central 12, so that the clamping screw 17, with head breakable, with which it is provided, moves towards the tip of teeth 14 when screwed.

Dans l'embase 6, la languette 9 laisse place à une fente 18 délimitée par deux pattes de fixation 19 qui forment une fourche se terminant par l'extrémité 8. A l'extrémité 20, de l'embase 6, opposée à l'extrémité 8, deux pattes de fixation 21 s'étendent de chaque côté du pli 4.In the base 6, the tongue 9 gives way to a slot 18 delimited by two fixing lugs 19 which form a fork ending at the end 8. At the end 20, of the base 6, opposite the end 8, two fixing lugs 21 extend on each side of the fold 4.

Sur la face supérieure de la portion d'extrémité 7, qui s'étend au-dessus de l'embase 6, est soudé le porte-fusible 3. Ce dernier comporte deux parois sensiblement verticales 22, qui sont parallèles entre elles et reliées élastiquement par une portion annulaire 23, de manière à délimiter conjointement une fente 24, s'évasant vers le haut, apte à recevoir une borne, en forme de couteau, d'un fusible. Les deux parois 22 sont également reliées par un anneau élastique 25, ouvert, qui est disposé pour participer à la raideur qui intervient lorsque la fente 24 est écartée.On the upper face of the end portion 7, which extends above the base 6, the fuse holder is welded 3. The latter has two substantially vertical walls 22, which are parallel to each other and connected elastically by an annular portion 23, so as to jointly delimit a slot 24, widening upwards, capable of receiving a knife-shaped terminal of a fuse. The two walls 22 are also connected by an elastic ring 25, open, which is willing to participate in the stiffness that occurs when the slot 24 is spread.

A proximité de son extrémité libre, la portion d'extrémité 7 comporte un trou 26 de réception d'un goujon 27 également logé dans un trou 28 percé dans le porte-fusible 3. Ce goujon 27, prévu pour effectuer des raccordements provisoires sur le connecteur notamment au moyen de pinces de connexion, est plus accessible ainsi disposé sur la portion d'extrémité 7 que s'il était monté sur l'embase 6.Near its free end, the end portion 7 has a hole 26 for receiving a stud 27 also housed in a hole 28 drilled in the fuse holder 3. This stud 27, provided for making temporary connections on the connector, in particular by means of pliers connection, is more accessible thus arranged on the portion end 7 only if it was mounted on base 6.

Dans une première étape de réalisation du socle 1, on découpe un flan de tôle dans une plaque réalisée en matériau conducteur, par exemple en cuivre, en aluminium ou en un alliage à base de cuivre ou d'aluminium. Les crevés 13 sont ensuite percés au moyen d'un poinçon 29 à tête conique, illustré à la figure 3. En effet, il a été constaté que, de manière surprenante, un tel poinçon permettait d'obtenir, au niveau de chaque crevé 13, une denture sensiblement régulière, comptant quatre dents. Ensuite, le flan de tôle est mis en forme par pliages successifs, jusqu'à l'obtention du socle 1. Bien entendu, l'ordre de succession de certaines de ces étapes peut être modifié. Par exemple, les crevés 13 peuvent être formés avant l'opération de découpage, ou encore après l'opération de mise en forme. Ils peuvent également être effectués simultanément à l'une ou à l'autre de ces deux opérations.In a first stage of production of the base 1, we cut a sheet blank from a plate made of material conductor, for example copper, aluminum or a copper or aluminum based alloy. The 13 punctures are then drilled using a punch 29 with a conical head, illustrated in Figure 3. Indeed, it was found that, from surprisingly, such a punch made it possible to obtain, at the level of each punctured 13, a substantially regular toothing, with four teeth. Then the sheet blank is put in shape by successive folding, until the base 1 is obtained. Of course, the order of succession of some of these stages can be changed. For example, punctures 13 can be formed before or after the cutting operation the shaping operation. They can also be performed simultaneously with one or the other of these two operations.

Le porte-fusible 3 est, lui aussi, obtenu par découpage et mise en forme d'un flan de tôle.The fuse holder 3 is also obtained by cutting and shaping of a sheet blank.

Le socle 1 et le porte-fusible 3 sont assemblés par soudage, après mise en place du goujon 27 dans les trous 26 et 28. Pour achever la réalisation du connecteur, il ne reste plus alors qu'à le munir de l'anneau élastique 25 et de l'étrier 2 pourvu de la vis de serrage 17. Dans ce but, la languette 9 est successivement basculée vers le haut autour du pli 10 (flèche F), ce qui permet d'enfiler dessus l'étrier 2, puis rabattue vers sa position initiale.The base 1 and the fuse holder 3 are assembled by welding, after fitting the stud 27 in the holes 26 and 28. To complete the construction of the connector, there remains more so than to provide it with the elastic ring 25 and the bracket 2 provided with the clamping screw 17. For this purpose, the tongue 9 is successively tilted up around fold 10 (arrow F), which allows you to put on the stirrup 2, then folded back to its initial position.

Sur la figure 4, le connecteur ainsi réalisé est placé dans un logement creux, délimité par les parois d'un support 30, vu en coupe, comportant quatre nervures 31 et 32, parallèles au fond 33 de ce logement. Les deux nervures 31 sont respectivement disposées aux deux coins d'une même extrémité du logement, tandis que les nervures 32, décalées axialement par rapport aux nervures 31, s'étendent chacune à partir de l'une des deux parois latérales de ce logement. Le fond 33 comporte deux trous 34 situés au droit des nervures 31. L'embase 6 est placée entre le fond 33 et les nervures 31 et 32 qui retiennent ainsi le connecteur dans son logement.In FIG. 4, the connector thus produced is placed in a hollow housing, delimited by the walls of a support 30, seen in section, comprising four ribs 31 and 32, parallel to the bottom 33 of this housing. The two ribs 31 are respectively arranged at the two corners of the same end of the housing, while the ribs 32, offset axially with respect to the ribs 31, each extend at from one of the two side walls of this housing. The bottom 33 has two holes 34 located at the right of the ribs 31. The base 6 is placed between the bottom 33 and the ribs 31 and 32 which thus retain the connector in its housing.

Le connecteur est installé sur le support 30 en glissant, dans un premier temps, les deux pattes de fixation 21 chacune dans un trou 34, sous une nervure 31, puis, dans un second temps, en rabattant l'embase 6 contre le fond 33, jusqu'à ce que les deux pattes de fixation 19 s'enclenchent derrière les nervures 32.The connector is installed on the support 30 by sliding, at first, the two fixing lugs 21 each in a hole 34, under a rib 31, then, in a second time, by folding the base 6 against the bottom 33, until that the two fixing lugs 19 snap behind the ribs 32.

Un fusible 35 est raccordé sur le connecteur par l'une, référencée 36, de ses deux bornes, qui présente la forme générale d'un couteau et est introduite dans la fente 24.A fuse 35 is connected to the connector by one, referenced 36, of its two terminals, which has the form general of a knife and is inserted into the slot 24.

Un câble conducteur 37, muni d'une gaine isolante 38, est logée dans l'étrier 2, dont la vis de serrage 17 a été vissée jusqu'à la rupture de sa tête sécable. Cette vis de serrage 17 presse le câble conducteur 37 contre les dents 14, qui, de ce fait, s'ancrent dans l'âme métallique de celui-ci en perforant la gaine isolante 38.A conductive cable 37, provided with an insulating sheath 38, is housed in the bracket 2, of which the clamping screw 17 has been screwed until the breakable head breaks. This clamping screw 17 presses the conductive cable 37 against the teeth 14, which, from this fact, anchor in the metallic core of it in perforating the insulating sheath 38.

Sur la figure 5, un connecteur selon une variante de réalisation de l'invention présente des crevés 39 qui comportent chacune deux dents 40 et ont été obtenues par un poinçon 41 illustré à la figure 6. La tête de ce poinçon 41 comporte deux pans délimitant au lieu de leur intersection une arête d'extrémité 42.In FIG. 5, a connector according to a variant of realization of the invention presents punctures 39 which each have two teeth 40 and have been obtained by a punch 41 illustrated in FIG. 6. The head of this punch 41 has two sections delimiting instead of their intersection a end edge 42.

L'invention ne se limite pas aux modes de réalisation précédemment décrits.The invention is not limited to the embodiments previously described.

En particulier, la tête du poinçon employé pour former les crevés peut comporter plus de deux pans, par exemple trois ou quatre, qui délimitent conjointement une pointe. Toutefois, le poinçon 29 à tête conique présente l'avantage d'être particulièrement simple.In particular, the head of the punch used to form the punctures may have more than two sides, for example three or four, which jointly delimit a point. However, the punch 29 with conical head has the advantage of being particularly simple.

Egalement, le connecteur peut être formé dans un seul flan de tôle, bien que l'emploi de deux flans de tôle, mis en forme pour obtenir le socle 1 et le porte-fusible 3, puis soudés, soit avantageux dans la mesure où il permet de réduire l'importance des chutes de matière qui résultent de leur découpage dans une plaque. Par exemple, il est particulièrement aisé de disposer côte-à-côte, sur une plaque de matière première, de manière à optimiser l'utilisation de celle-ci, les tracés de découpage de plusieurs socles 1, puisque ces tracés délimitent sensiblement des bandes.Also, the connector can be formed in a single sheet blank, although the use of two sheet blanks, shape to obtain the base 1 and the fuse holder 3, then welded, is advantageous insofar as it makes it possible to reduce the importance of the material falls which result from their cutting in a plate. For example, it is particularly easy to place side by side, on a sheet of material first, so as to optimize the use of it, the cutting plots of several bases 1, since these lines delimit substantially bands.

De plus, les crevés, qui sont alignés selon la ligne médiane et longitudinale de la languette dans les exemples précédents, peuvent être disposés autrement. Ils peuvent, par exemple, être alternativement répartis de part et d'autre de cette ligne médiane ou légèrement déportés sur un côté de celle-ci.In addition, the punctures, which are aligned along the line median and longitudinal of the tongue in the examples previous, can be arranged differently. They can, by example, be alternately distributed on either side of this midline or slightly offset to one side of it.

Claims (12)

Connecteur pour le raccordement d'un câble conducteur (37) garni d'une gaine isolante (38), ce connecteur comportant un flan de tôle dans lequel sont formées une languette (9) et, sur cette languette (9), une denture de perforation, ladite languette (9) étant destinée à recevoir un étrier (2) muni d'une vis de serrage (17) du câble (37) contre la denture pour perforer la gaine isolante (38), caractérisé en ce que la denture (15) est formée par au moins un crevé (13 ; 39) percé dans la languette (9).Connector for the connection of a conductive cable (37) provided with an insulating sheath (38), this connector comprising a sheet blank in which a tongue (9) is formed and, on this tongue (9), a toothing of perforation, said tongue (9) being intended to receive a stirrup (2) provided with a tightening screw (17) of the cable (37) against the teeth to perforate the insulating sheath (38), characterized in that the teeth ( 15) is formed by at least one puncture (13; 39) pierced in the tongue (9). Connecteur selon la revendication 1, caractérisé en ce que la languette (15) est découpée dans le flan de tôle.Connector according to claim 1, characterized in that the tongue (15) is cut from the sheet blank. Connecteur selon la revendication 2, caractérisé en ce que le flan de tôle définit deux pattes de fixation (19) qui s'étendent chacun d'un côté de la languette (9).Connector according to Claim 2, characterized in that the sheet metal blank defines two fixing lugs (19) which each extend on one side of the tongue (9). Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que plusieurs crevés (13 ; 39) sont répartis le long d'une ligne longitudinale et sensiblement médiane de la languette (9).Connector according to any one of the preceding claims, characterized in that several punctures (13; 39) are distributed along a longitudinal and substantially median line of the tongue (9). Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le crevé forme de deux (14) à quatre (40) dents.Connector according to any one of the preceding claims, characterized in that the punctured form from two (14) to four (40) teeth. Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce qu'outre les premiers moyens de raccordement formés par la languette (9) munie de l'étrier (2), il comporte des deuxièmes moyens de raccordement qui comprennent une fente (24) délimitée par deux parois (22) reliées élastiquement pour recevoir une borne (36) en forme de couteau, d'un fusible (35).Connector according to any one of the preceding claims, characterized in that in addition to the first connection means formed by the tongue (9) provided with the bracket (2), it comprises second connection means which include a slot (24 ) delimited by two walls (22) elastically connected to receive a terminal (36) in the form of a knife, of a fuse (35). Connecteur selon la revendication 6, caractérisé en ce que le flan de tôle présente la forme générale d'une bande comportant deux plis transversaux (4, 5) entre des première (6) et deuxième (7) portions d'extrémité, sensiblement parallèles, du flan de tôle, la languette (9) étant formée dans la première portion d'extrémité (6) et s'étendant selon une direction générale sensiblement parallèle à celle de la bande, les deuxièmes moyens de raccordement (3, 24) étant rapportés sur celle des deux faces de la deuxième portion (7) qui est tournée à l'opposé de la première portion (6).Connector according to claim 6, characterized in that the sheet metal blank has the general shape of a strip comprising two transverse folds (4, 5) between first (6) and second (7) end portions, substantially parallel, of the sheet blank, the tongue (9) being formed in the first end portion (6) and extending in a general direction substantially parallel to that of the strip, the second connection means (3, 24) being attached on that of the two faces of the second portion (7) which is turned away from the first portion (6). Connecteur selon la revendication 7, caractérisé en ce que la deuxième portion (7) comporte des troisièmes moyens de raccordement, provisoire, formés d'une tige (27) dirigée à l'opposé de la première portion (6).Connector according to claim 7, characterized in that the second portion (7) comprises third, temporary connection means, formed by a rod (27) directed opposite the first portion (6). Connecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la largeur de la languette (9) est comprise entre 6 et 12 mm.Connector according to any one of the preceding claims, characterized in that the width of the tongue (9) is between 6 and 12 mm. Procédé de fabrication d'un connecteur selon l'une quelconque des revendications précédentes, dans lequel : on découpe le flan de tôle de manière à ce qu'il délimite une languette (9) ; et on forme ce flan de tôle pour lui donner sa forme définitive, caractérisé en ce qu'on perce au moins un crevé (13 ; 39) garni de dents (14 ; 40), dans la languette (9), par enfoncement d'un poinçon (29 ; 41).Method of manufacturing a connector according to any one of the preceding claims, in which: the sheet metal blank is cut so that it delimits a tongue (9); and we form this sheet metal blank to give it its final shape, characterized in that at least one punctured (13; 39) provided with teeth (14; 40) is pierced in the tongue (9) by depressing a punch (29; 41). Procédé selon la revendication 10, caractérisé en ce qu'on utilise un poinçon (29) dont la tête présente la forme d'une pointe sensiblement conique.Method according to Claim 10, characterized in that a punch (29) is used, the head of which has the shape of a substantially conical point. Procédé selon la revendication 10 ou 11 de fabrication d'un connecteur selon la revendication 7, caractérisé en ce qu'on soude sur le flan de tôle lesdits deuxièmes moyens de raccordement (3, 24).Method according to claim 10 or 11 for manufacturing a connector according to claim 7, characterized in that said second connection means (3, 24) are welded to the sheet blank.
EP01420227A 2000-11-24 2001-11-23 Electrical connector for connecting a cable and method for manufacturing the same Withdrawn EP1209762A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015234A FR2817400B1 (en) 2000-11-24 2000-11-24 ELECTRICAL CONNECTOR FOR CONNECTING A CABLE, AND METHOD FOR MANUFACTURING SUCH A CONNECTOR
FR0015234 2000-11-24

Publications (1)

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EP1209762A1 true EP1209762A1 (en) 2002-05-29

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EP01420227A Withdrawn EP1209762A1 (en) 2000-11-24 2001-11-23 Electrical connector for connecting a cable and method for manufacturing the same

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EP (1) EP1209762A1 (en)
FR (1) FR2817400B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2903815A1 (en) * 2006-07-12 2008-01-18 Manuf D App Electr De Cahors S Electrical cable connecting terminal for electrical equipment of house, has beam engaged in unit when beam is disengaged from plate, and plate made of copper and copper alloy, where plate has length smaller than that of beam`s axial length

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848731B1 (en) * 2002-12-16 2007-05-25 Mecelec Ind ELECTRICAL CONNECTOR AND METHOD FOR MANUFACTURING THE SAME
FR2848732B1 (en) * 2002-12-16 2005-05-06 Mecelec Ind CONNECTOR FOR CONNECTING A CONDUCTIVE CABLE INTO A CIRCUIT
FR2896920B1 (en) 2006-01-30 2008-04-11 Mecelec Sa ELECTRIC CONNECTION CONNECTOR SET AND METHOD OF MANUFACTURING SUCH CONNECTOR

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459560A1 (en) * 1979-06-19 1981-01-09 Alsthom Cgee Connecting terminal for insulated cables - comprises iron stirrup and cap-piece, provided with teeth clamped by screw pressure into cable
FR2503939A1 (en) * 1981-04-14 1982-10-15 Alsthom Cgee Connector or terminal for insulated electric cable - has screw tightening insulation piercing harness inside insulating housing
FR2625845A1 (en) * 1988-01-11 1989-07-13 Mecelec Sa Insulating-displacement (perforation) electrical connector
EP0519196A1 (en) * 1991-06-14 1992-12-23 Molex Incorporated A terminal block for printed circuit boards
FR2697376A1 (en) * 1992-10-27 1994-04-29 Seifel Cage-type unipolar connector for electric cables - has body with internal cavity with grooved jaws and grooves at base of cavity which clamp electric cable when bolts are screwed closed

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459560A1 (en) * 1979-06-19 1981-01-09 Alsthom Cgee Connecting terminal for insulated cables - comprises iron stirrup and cap-piece, provided with teeth clamped by screw pressure into cable
FR2503939A1 (en) * 1981-04-14 1982-10-15 Alsthom Cgee Connector or terminal for insulated electric cable - has screw tightening insulation piercing harness inside insulating housing
FR2625845A1 (en) * 1988-01-11 1989-07-13 Mecelec Sa Insulating-displacement (perforation) electrical connector
EP0519196A1 (en) * 1991-06-14 1992-12-23 Molex Incorporated A terminal block for printed circuit boards
FR2697376A1 (en) * 1992-10-27 1994-04-29 Seifel Cage-type unipolar connector for electric cables - has body with internal cavity with grooved jaws and grooves at base of cavity which clamp electric cable when bolts are screwed closed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2903815A1 (en) * 2006-07-12 2008-01-18 Manuf D App Electr De Cahors S Electrical cable connecting terminal for electrical equipment of house, has beam engaged in unit when beam is disengaged from plate, and plate made of copper and copper alloy, where plate has length smaller than that of beam`s axial length

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FR2817400A1 (en) 2002-05-31
FR2817400B1 (en) 2003-01-24

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