EP0905817B1 - Connecting arrangement with insulation displacement contact element - Google Patents
Connecting arrangement with insulation displacement contact element Download PDFInfo
- Publication number
- EP0905817B1 EP0905817B1 EP19980410101 EP98410101A EP0905817B1 EP 0905817 B1 EP0905817 B1 EP 0905817B1 EP 19980410101 EP19980410101 EP 19980410101 EP 98410101 A EP98410101 A EP 98410101A EP 0905817 B1 EP0905817 B1 EP 0905817B1
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- EP
- European Patent Office
- Prior art keywords
- self
- metal
- slit
- contact
- cylindrical shape
- 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.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2437—Curved plates
- H01R4/2441—Curved plates tube-shaped
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/71—Contact members of coupling parts operating as switch, e.g. linear or rotational movement required after mechanical engagement of coupling part to establish electrical connection
Definitions
- the present invention relates to a connection device with self-stripping contact element, for the connection of the conductors of cables or electrical wires or metal bars or the like, to a metal strip of distribution of a terminal of a distribution terminal block , an electrical appliance or the like.
- the self-stripping contact element has two edges sharpened to allow to cut the insulation and to ensure contact with the conductor of a cable or an electrical wire.
- This self-stripping contact element is fixed and is associated with means for pushing the cable or the electric wire between the sharp parallel edges of the contact element.
- the means for pushing the cable comprise a screw disposed inside a pusher which moves in translation in a well under the effect of the rotation of the screw. To move the pusher sufficiently to bring the cable into the self-stripping contact element, that is to say to ensure its connection, it is necessary to give several complete turns to the screw.
- the cable is not held during this operation and can escape if it is not held in position by the operator before being locked in position by the action of the sharp edges of the element self-stripping contact on the insulation of the cable or wire.
- the present invention proposes to provide a connection device with self-stripping contact element and which does not have the mentioned drawbacks of the known system. It has very few parts, which makes it economical and reliable.
- the cable or wire remains in a fixed position during the connection operation, which guarantees the quality of the connection.
- the movement to which the contact element is subjected is a simple displacement, in this case preferably a rotation of a quarter or a half-turn, which makes it possible to simplify to the extreme the mechanical parts of the system and therefore reduce production costs.
- connection device as defined in the preamble is known from US 5254015.
- the device is characterized by the features of claim 1.
- the self-stripping slot extends over a length corresponding to an angle of between 45 and 270 ° and preferably close to 180 °.
- the substantially cylindrical tubular shaped part of the self-stripping contact element advantageously comprises several slots arranged in parallel. These slots may have different cross sections to correspond to different diameters of cables or wires.
- connection device 10 is for example mounted in a distribution terminal block 11 which comprises at least one receiving housing 12 of this device.
- This device could also be mounted in any other electrical device to serve as a connection terminal of external conductors of a circuit.
- the connection device 10 itself mainly comprises a self-stripping contact element consisting of a substantially cylindrical tubular part 13 composed of a side wall 13a and an end piece 13b which extends the side wall towards the end. open end of the housing 12.
- the tip 13b preferably has a reduced section relative to the diameter of the side wall 13a and comprises a central recess 13c, described in more detail with reference to FIGS. 2A and 2B, which allows, by its shape, a coupling with a tool such as a wrench or a screwdriver to drive the workpiece 13 in rotation about its axis of symmetry.
- the central recess could also be replaced by a protuberance with two opposite flat faces to allow the use of a key, such as a spanner for example.
- the distribution terminal block 11 comprises a metal strip 14 of electrical connection which can have any shape provided that it is adapted to be in close contact with the part 13.
- this part 13 comprises at least one zone 15 having a smooth peripheral surface that provides reliable electrical contact with said metal bar 14.
- the side wall 13a of the part 13 has an elongated slot-shaped opening 16 whose cross section passes by a value equal to or greater than the diameter of the cable or the electric wire 17 comprising a central conductor 18 and at least one peripheral layer of an insulator 19, in the vicinity of one of its ends, at an equal value and, preferably, slightly smaller than the diameter of the central conductor 18, in the vicinity of its opposite end.
- the edges 16a and 16b of the slot 16 are sharp such that the insulation 19 is cut and the conductor 18 is slightly notched when the cable or the electric wire has passed from one end of this slot to the other. This passage takes place without moving the cable or the electric wire 17, but following a rotation of the part 13.
- the two positions are respectively represented by FIGS. 1A and 1B.
- means (not shown) forming a stop for limiting the rotational stroke of the cylinder may be provided, for example, at the lower or upper part of said cylinder.
- Figures 2A and 2B show, in the form of perspective views, two embodiments of the substantially cylindrical tubular part 13.
- the tip 13b has in its central part a recess 20 which corresponds to the profile of a Phillips screwdriver in the construction according to Figure 2A and a flat screwdriver in the construction according to Figure 2B.
- FIG. 3 represents the distribution terminal block 11, seen in perspective, and shown in section in FIGS. 1A and 1B. It comprises an elongate body having a plurality of housings 12 in which several connection devices 10 are arranged respectively. containing a connection device 10 corresponds to an opening in the form of an access tunnel 21, disposed laterally on the body of the terminal block 11, for receiving and guiding a cable or an electric wire 17 in the direction of the self-stripping slot 16 of the corresponding self-stripping contact element.
- FIG. 4 represents the distribution terminal block 11 of FIG. 3, partially cut away and shows in particular the specific shape of the metal distribution strip 14 which ensures electrical contact with the substantially cylindrical tubular parts 13 of the self-stripping contact elements. .
- This bar is folded so as to form a succession of U inverted 22 in which are embedded the parts 13. The close contact of the metal bar and the corresponding part 13 is provided in three support zones regardless of the position of the piece, which guarantees a good electrical connection.
- FIG. 5 represents an alternative embodiment of the part 13 whose side wall 13a is provided with three slots 16 arranged in parallel, respectively intended to provide the connection of three cables or electrical wires 17. These slots may be identical or have different dimensions to allow to connect cables or electrical wires of different diameters.
- a slot that can accept cables or son of different diameters may be used.
- This slot comprises, between the introduction zone of the cable and the connection zone, a set of slots (c) located on either side of the axis (x) of the slot.
- FIGS. 6A, 6B and 6C respectively show perspective views (FIG. 6A) and elevation views (FIGS. 6B and 6C) of another variant embodiment of a substantially cylindrical and tubular part 13 of the self-contacting contact element. stripping.
- the side wall 13a of the part 13 comprises three slots arranged substantially parallel, a central slot 16 substantially identical to that described above, intended to receive a conductive bar 23, and two slots 24, with non-cutting parallel edges which have the sole function of giving elastic properties to the piece 13.
- the mechanical stops corresponding to the "connected” and “disconnected” positions of the device are advantageously formed by the two edges of the slot at its two ends.
- the operating principle is identical to that described above.
- the metal bar is engaged as the cable or the elastic wire in the slot 16 and the piece 13 is turned so that the edges of the slot bite by their sharp edges in the thickness of the conductor.
- FIGS. 7A, 7B, 7C illustrate another embodiment of the substantially cylindrical tubular part of the self-stripping contact element, as well as a specific use of the device 10.
- the part 13 is composed of two parts, a part metal 30 and an insulating portion 31 shaped stud, held by two lugs 32 cut in the side wall 13a of the part 13, and which engage in two recesses 33 diametrically opposite formed in the stud constituting the insulating portion 31.
- This part 13 is associated with a metal plate 34 in which are formed cells 35 intended to receive the lower part of the part 13.
- this part 13 When this part 13 is engaged in the corresponding cell of the metal plate 34, it can occupy two positions illustrated respectively in Figures 7C and 7D. In the position of Figure 7C, the contact between the piece 13 and the metal plate 34 is at the insulating portion 31, the metal tabs 32 being arranged in the elongated area of the cell and having no contact with the walls of the latter and, consequently, with the metal plate 34.
- this device makes it possible to electrically disconnect the piece 13 from the metal plate 34 at the time of introduction of a cable or electrical wire in order to connect it and to ensure electrical coupling at the moment of rotation. of the piece 13 at the same time as is the connection of the cable or the electric wire, a metal bar or the like.
- Figures 8, 8a, 8b, 8c show a particular embodiment of the part 13 by winding and crimping.
- the pre-cut part (FIG 8) is wound (FIG 8a, 8b, 8c), then the lips (I) at the ends are crimped at about 45 °.
- the slot 30 forms the connection element with the strip 14, which may also be the connection range of a circuit-breaker or contactor type device, or the connection strip of FIG. 4.
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Description
La présente invention concerne un dispositif de connexion à élément de contact auto-dénudant, pour la connexion des conducteurs de câbles ou de fils électriques ou de barres métalliques ou similaires, à une barrette métallique de distribution d'une borne d'un bornier de distribution, d'un appareil électrique ou similaire.The present invention relates to a connection device with self-stripping contact element, for the connection of the conductors of cables or electrical wires or metal bars or the like, to a metal strip of distribution of a terminal of a distribution terminal block , an electrical appliance or the like.
On connaît déjà un système de ce type décrit en particulier dans la demande de brevet européen EP 0 697 749 A1. Dans cette réalisation l'élément de contact auto-dénudant comporte deux bords affûtés pour permettre d'entailler l'isolant et d'assurer le contact avec le conducteur d'un câble ou d'un fil électrique. Cet élément de contact auto-dénudant est fixe et est associé à des moyens pour pousser le câble ou le fil électrique entre les bords parallèles coupants de l'élément de contact.We already know a system of this type described in particular in the European patent application EP 0 697 749 A1. In this embodiment the self-stripping contact element has two edges sharpened to allow to cut the insulation and to ensure contact with the conductor of a cable or an electrical wire. This self-stripping contact element is fixed and is associated with means for pushing the cable or the electric wire between the sharp parallel edges of the contact element.
Cette réalisation est complexe, coûteuse et ne garantit pas d'une manière certaine la réalisation d'une connexion fiable. En effet, les moyens pour pousser le câble comprennent une vis disposée à l'intérieur d'un poussoir qui se déplace en translation dans un puits sous l'effet de la rotation de la vis. Pour déplacer le poussoir de façon suffisante pour amener le câble dans l'élément de contact auto-dénudant, c'est-à-dire pour assurer sa connexion, il faut donner plusieurs tours complets à la vis.This embodiment is complex, expensive and does not guarantee a certain way to achieve a reliable connection. Indeed, the means for pushing the cable comprise a screw disposed inside a pusher which moves in translation in a well under the effect of the rotation of the screw. To move the pusher sufficiently to bring the cable into the self-stripping contact element, that is to say to ensure its connection, it is necessary to give several complete turns to the screw.
En outre, le câble n'est pas tenu pendant cette opération et peut s'échapper s'il n'est pas retenu en position par l'opérateur avant d'être bloqué en position par l'action des bords tranchants de l'élément de contact auto-dénudant sur l'isolant du câble ou du fil électrique.In addition, the cable is not held during this operation and can escape if it is not held in position by the operator before being locked in position by the action of the sharp edges of the element self-stripping contact on the insulation of the cable or wire.
La présente invention se propose d'offrir un dispositif de connexion à élément de contact auto-dénudant et qui ne présente pas les inconvénients cités du système connu. Il ne comporte que très peu de pièces, ce qui le rend économique et fiable. Le câble ou le fil électrique reste dans une position fixe pendant l'opération de raccordement, ce qui garantit la qualité de la connexion. Le mouvement auquel est soumis l'élément de contact est un déplacement simple, en l'occurrence de préférence une rotation d'un quart ou d'un demi-tour, ce qui permet de simplifier à l'extrême les pièces mécaniques du système et par conséquent de réduire les coûts de production.The present invention proposes to provide a connection device with self-stripping contact element and which does not have the mentioned drawbacks of the known system. It has very few parts, which makes it economical and reliable. The cable or wire remains in a fixed position during the connection operation, which guarantees the quality of the connection. The movement to which the contact element is subjected is a simple displacement, in this case preferably a rotation of a quarter or a half-turn, which makes it possible to simplify to the extreme the mechanical parts of the system and therefore reduce production costs.
Un dispositif de connexion tel que défini en préambule est connu du document US 5254015.A connection device as defined in the preamble is known from US 5254015.
Dans ce but, le dispositif est caractérisé par les caractéristiques de la revendication 1.For this purpose, the device is characterized by the features of claim 1.
D'une manière préférentielle, la fente auto-dénudante s'étend sur une longueur correspondant à un angle compris entre 45 et 270° et de préférence voisin de 180°.In a preferential manner, the self-stripping slot extends over a length corresponding to an angle of between 45 and 270 ° and preferably close to 180 °.
La pièce de forme sensiblement cylindrique tubulaire de l'élément de contact auto-dénudant comporte avantageusement plusieurs fentes disposées parallèlement. Ces fentes peuvent avoir des sections transversales différentes pour correspondre à des diamètres de câbles ou de fils électriques différents.The substantially cylindrical tubular shaped part of the self-stripping contact element advantageously comprises several slots arranged in parallel. These slots may have different cross sections to correspond to different diameters of cables or wires.
La présente invention sera mieux comprise en référence à la description d'exemples de réalisation donnés à titre d'exemples non limitatifs et aux dessins annexés dans lesquels :
- la figure 1A représente une vue en coupe d'une forme de réalisation du dispositif de connexion selon l'invention dans une position dans laquelle le câble n'est pas encore raccordé,
- la figure 1 B représente une vue similaire à celle de la figure 1A, dans laquelle le dispositif de connexion est dans une position où le câble est raccordé,
- les figures 2A et 2B sont des vues en perspective représentant deux formes de réalisation particulières d'un élément de contact auto-dénudant du dispositif selon l'invention,
- la figure 3 illustre un bornier de distribution de connexion très simple comportant des dispositifs de connexion selon l'invention,
- la figure 4 est une vue en perspective du bornier de distribution de la figure 3, partiellement coupé pour montrer la disposition des dispositifs de connexion qu'il contient,
- la figure 5 est une vue en perspective d'une variante de réalisation de l'élément de contact auto-dénudant,
- les figures 6A, 6B et 6C sont des vues respectivement en perspective et en élévation d'une autre variante de réalisation de l'élément de contact auto-dénudant, qui permet par sa forme un accouplement avec un outil tel qu'une clé ou un tournevis pour l'entraîner en rotation autour de son axe de symétrie,
- les figures 7A, 7B, 7C et 7D sont des vues en perspective illustrant une autre forme de réalisation du dispositif selon l'invention et une utilisation particulière de ce dispositif, et
- les figures 8, 8a, 8b, 8c illustrent une autre réalisation du dispositif de l'invention.
- FIG. 1A represents a sectional view of one embodiment of the connection device according to the invention in a position in which the cable is not yet connected,
- FIG. 1B shows a view similar to that of FIG. 1A, in which the connection device is in a position where the cable is connected,
- FIGS. 2A and 2B are perspective views showing two particular embodiments of a self-stripping contact element of the device according to the invention,
- FIG. 3 illustrates a very simple connection distribution terminal block comprising connecting devices according to the invention,
- FIG. 4 is a perspective view of the distribution terminal block of FIG. 3, partially cut to show the arrangement of the connection devices that it contains;
- FIG. 5 is a perspective view of an alternative embodiment of the self-stripping contact element,
- FIGS. 6A, 6B and 6C are views respectively in perspective and in elevation of another alternative embodiment of the self-stripping contact element, which allows by its shape a coupling with a tool such as a key or a screwdriver to rotate it around its axis of symmetry,
- FIGS. 7A, 7B, 7C and 7D are perspective views illustrating another embodiment of the device according to the invention and a particular use of this device, and
- Figures 8, 8a, 8b, 8c illustrate another embodiment of the device of the invention.
En référence aux figures 1 A et 1 B, le dispositif de connexion 10 est par exemple monté dans un bornier de distribution 11 qui comporte au moins un logement de réception 12 de ce dispositif. Ce dispositif pourrait également être monté dans tout autre appareil électrique pour servir de borne de raccordement de conducteurs extérieurs d'un circuit.With reference to FIGS. 1A and 1B, the
Le dispositif de connexion 10 proprement dit comporte principalement un élément de contact auto-dénudant constitué d'une pièce sensiblement cylindrique tubulaire 13 composée d'une paroi latérale 13a et d'un embout d'extrémité 13b qui prolonge la paroi latérale vers l'extrémité ouverte du logement 12. L'embout 13b a de préférence une section réduite par rapport au diamètre de la paroi latérale 13a et comporte un évidement central 13c, décrit plus en détail en référence aux figures 2A et 2B, qui permet, par sa forme, un accouplement avec un outil tel qu'une clé ou un tournevis pour entraîner la pièce 13 en rotation autour de son axe de symétrie. L'évidement central pourrait également être remplacé par une protubérance avec deux faces planes opposées pour permettre l'utilisation d'une clé, telle qu'une clé à fourche par exemple.The
Le bornier de distribution 11 comporte une barrette métallique 14 de raccordement électrique qui peut avoir une forme quelconque à condition qu'elle soit adaptée pour être en contact étroit avec la pièce 13. A cet effet, cette pièce 13 comporte au moins une zone 15 ayant une surface périphérique lisse qui assure un contact électrique fiable avec ladite barrette métallique 14.The
La paroi latérale 13a de la pièce 13 comporte une ouverture en forme de fente allongée 16 dont la section transversale passe d'une valeur égale ou supérieure au diamètre du câble ou du fil électrique 17 comportant un conducteur central 18 et au moins une couche périphérique d'un isolant 19, au voisinage d'une de ses extrémités, à une valeur égale et, de préférence, légèrement inférieure au diamètre du conducteur central 18, au voisinage de son extrémité opposée. Les bords 16a et 16b de la fente 16 sont coupants de telle manière que l'isolant 19 soit coupé et que le conducteur 18 soit légèrement entaillé lorsque le câble ou le fil électrique est passé d'une extrémité de cette fente à l'autre. Ce passage s'effectue sans déplacement du câble ou du fil électrique 17, mais suite à une rotation de la pièce 13. Les deux positions sont respectivement représentées par les figures 1 A et 1 B.The
On notera que des moyens (non représentés) formant butée de limitation de la course en rotation du cylindre pourront être prévus par exemple à la partie inférieure ou supérieure dudit cylindre.It will be noted that means (not shown) forming a stop for limiting the rotational stroke of the cylinder may be provided, for example, at the lower or upper part of said cylinder.
Les figures 2A et 2B représentent, sous la forme de vues en perspective, deux variantes de réalisation de la pièce 13 sensiblement cylindrique tubulaire. L'embout 13b présente dans sa partie centrale un évidement 20 qui correspond au profil d'un tournevis cruciforme dans la construction selon la figure 2A et d'un tournevis plat dans la construction selon la figure 2B.Figures 2A and 2B show, in the form of perspective views, two embodiments of the substantially cylindrical
On voit sur ces figures la forme particulière de la fente 16 ainsi que ses bords coupants 16a et 16b.These figures show the particular shape of the
La figure 3 représente le bornier de distribution 11, vu en perspective, et représenté en coupe par les figures 1A et 1 B. Il comporte un corps allongé ayant plusieurs logements 12 dans lesquels sont disposés respectivement plusieurs dispositifs de connexion 10. A chaque logement 12 contenant un dispositif de connexion 10 correspond une ouverture en forme de tunnel d'accès 21, disposée latéralement sur le corps du bornier 11, pour recevoir et guider un câble ou un fil électrique 17 en direction de la fente 16 auto-dénudante de l'élément de contact auto-dénudant correspondant.FIG. 3 represents the
La figure 4 représente le bornier de distribution 11 de la figure 3, partiellement coupé et montre en particulier, la forme spécifique de la barrette métallique de distribution 14 qui assure le contact électrique avec les pièces sensiblement cylindriques tubulaires 13 des éléments de contact auto-dénudants. Cette barrette est pliée de manière à former une succession de U inversés 22 dans lesquels sont encastrées les pièces 13. Le contact étroit de la barrette métallique et de la pièce 13 correspondante est assuré en trois zones d'appui quelle que soit la position de la pièce, ce qui garantit une bonne connexion électrique.FIG. 4 represents the
La figure 5 représente une variante de réalisation de la pièce 13 dont la paroi latérale 13a est pourvue de trois fentes 16 disposées parallèlement, respectivement destinées à assurer la connexion de trois câbles ou fils électriques 17. Ces fentes peuvent être identiques ou avoir des dimensions différentes pour permettre de raccorder des câbles ou des fils électriques de diamètres différents.FIG. 5 represents an alternative embodiment of the
Selon une autre réalisation, une fente pouvant accepter des câbles ou fils de différents diamètres, telle que représentée en figure 9, pourra être utilisée. Cette fente comporte, entre la zone d'introduction du câble et la zone de connexion, un ensemble de créneaux (c) situés de part et d'autre de l'axe (x) de la fente.In another embodiment, a slot that can accept cables or son of different diameters, as shown in Figure 9, may be used. This slot comprises, between the introduction zone of the cable and the connection zone, a set of slots (c) located on either side of the axis (x) of the slot.
Les figures 6A, 6B et 6C représentent respectivement des vues en perspective (figure 6A) et en élévation (figures 6B et 6C) d'une autre variante de réalisation d'une pièce 13 sensiblement cylindrique et tubulaire de l'élément de contact auto-dénudant. Dans cette réalisation, la paroi latérale 13a de la pièce 13 comporte trois fentes disposées sensiblement parallèlement, soit une fente centrale 16 sensiblement identique à celle décrite précédemment, destinée à recevoir une barre conductrice 23, et deux fentes 24, à bords parallèles non coupants qui ont pour unique fonction de donner des propriétés élastiques à la pièce 13.FIGS. 6A, 6B and 6C respectively show perspective views (FIG. 6A) and elevation views (FIGS. 6B and 6C) of another variant embodiment of a substantially cylindrical and
On notera que dans cette réalisation, les butées mécaniques correspondant aux positions "connectée" et "déconnectée" du dispositif sont avantageusement formés par les deux bords de la fente situés à ses deux extrémités.Note that in this embodiment, the mechanical stops corresponding to the "connected" and "disconnected" positions of the device are advantageously formed by the two edges of the slot at its two ends.
Le principe de fonctionnement est identique à celui décrit ci-dessus. La barre métallique est engagée comme le câble ou le fil élastique dans la fente 16 et la pièce 13 est tournée de telle manière que les bords de la fente mordent par leurs bords coupants dans l'épaisseur du conducteur.The operating principle is identical to that described above. The metal bar is engaged as the cable or the elastic wire in the
Les figures 7A, 7B, 7C illustrent une autre forme de réalisation de la pièce sensiblement cylindrique tubulaire de l'élément de contact auto-dénudant, ainsi qu'une utilisation spécifique du dispositif 10. La pièce 13 est composée de deux parties, une partie métallique 30 et une partie isolante 31 en forme de plot, retenue par deux pattes 32 découpées dans la paroi latérale 13a de la pièce 13, et qui s'engagent dans deux évidements 33 diamétralement opposés ménagés dans le plot constituant la partie isolante 31.FIGS. 7A, 7B, 7C illustrate another embodiment of the substantially cylindrical tubular part of the self-stripping contact element, as well as a specific use of the
Cette pièce 13 est associée à une plaque métallique 34 dans laquelle sont ménagés des alvéoles 35 destinés à recevoir la partie inférieure de la pièce 13. Lorsque cette pièce 13 est engagée dans l'alvéole correspondant de la plaque métallique 34, elle peut occuper deux positions illustrées respectivement par les figures 7C et 7D. Dans la position de la figure 7C, le contact entre la pièce 13 et la plaque métallique 34 se fait au niveau de la partie isolante 31, les pattes métalliques 32 étant disposées dans la zone allongée de l'alvéole et n'ayant pas de contact avec les parois de ce dernier et, par conséquent, avec la plaque métallique 34.This
Dans la position de la figure 7D, le contact entre la pièce 13 et la plaque métallique se fait au moyen des pattes métalliques 32. Dans cette position, le contact entre la pièce 13 et la plaque métallique est établi.In the position of Figure 7D, the contact between the
Par conséquent, ce dispositif permet de déconnecter électriquement la pièce 13 de la plaque métallique 34 au moment de l'introduction d'un câble ou d'un fil électrique en vue de sa connexion et d'assurer le couplage électrique au moment de la rotation de la pièce 13 en même temps que s'effectue la connexion du câble ou du fil électrique, d'une barre métallique ou similaire.Consequently, this device makes it possible to electrically disconnect the
Les figures 8, 8a, 8b, 8c montrent un mode particulier de réalisation de la pièce 13 par enroulement et sertissage. La pièce prédécoupée (fig. 8) est enroulée (fig. 8a, 8b, 8c), puis les lèvres (I) situées aux extrémités sont serties à environ 45°.
La fente 30 constitue l'élément de connexion avec la barrette 14, laquelle peut aussi bien être la plage de raccordement d'un appareil de type disjoncteur ou contacteur, ou bien la barrette de connexion de la figure 4.Figures 8, 8a, 8b, 8c show a particular embodiment of the
The
Claims (11)
- Connecting device with a self-baring contact part for connecting conductors of electric cables or wires or of metal bars or the like to a metal distribution strip of a terminal of a distribution terminal block of an electric apparatus or the like the self-baring contact part comprising a tubular part (13) of substantially cylindrical shape fitted in a housing (12) in such a way that the part is rotating around its axis of symmetry inside this housing, and the part comprising on the one hand at least one opening in the form of an elongate slit (16) arranged on its side wall (13a), this slit having at least one cutting edge and a transverse dimension that becomes progressively smaller from one longitudinal end of the slit to the other, from a value corresponding at least to the cross-section of the electric cable or wire (17) or the like to be connected to a value corresponding at the most to the cross-section of the conductor of this electric cable or wire characterized in that the side wall of this part comprises at least one zone presenting a smooth peripheral surface (15) that is in close contact with said metal bar (14), and said part comprises on the other hand means arranged at one of the ends thereof to make the part rotate by means of a tool, such as in particular a spanner or a screwdriver.
- Device according to claim 1, characterized in that said means arranged at one of the ends of the tubular part (13) of substantially tubular cylindrical shape of the self-baring contact part comprise an end-part (13b) presenting a protuberance or a hollow (13c) having at least two substantially parallel flat surfaces to provide a grip for a spanner or a screwdriver.
- Device according to claim 2, characterized in that said end-part (13b) has a narrower cross-section than the cross-section of the side wall (13d) of the part (13).
- Device according to claim 1, characterized in that said slit (16) extends over a length corresponding to an angle comprised between 45° and 270° and preferably close to 180°.
- Device according to claim 1, characterized in that said tubular part (13) of substantially tubular cylindrical shape of the self-baring contact part comprises several slits (16) arranged substantially in parallel.
- Device according to claim 5, characterized in that the different slits (16) have different transverse dimensions and are arranged to ensure connection of electric cables and/or wires (17) and/or of metal bars of different cross-sections.
- Device according to claim 1, characterized in that said tubular part (13) of substantially tubular cylindrical shape of the self-baring contact part comprises at least one additional slit (24) arranged in the side wall (13a) thereof to give the latter flexibility.
- Device according to claim 7, characterized in that said additional slit (24) comprises non-cutting parallel edges.
- Device according to claim 1, characterized in that said tubular part (13) of substantially tubular cylindrical shape of the self-baring contact part comprises a metal part and an insulating part (31) in the form of a pad held in position by means of two metal lugs (32) engaged in recesses (33) of said pad, this part being arranged so as to be housed in recesses (35) of a metal plate (34) in such a way that electrical contact between the part (13) and the metal plate (34) is made or broken depending on the position of the part (13), physical contact between the part and the plate taking place either at the level of the metal lugs (32) or at the level of the insulating part (31) in the form of a pad, depending on the position of the part (13).
- Device according to any one of the claims 1 to 5, characterized in that at least one of the slits comprises a set of crenelations (C) situated on each side of the axis (x) of the slit, between the cable insertion zone and the connecting zone.
- Device according to any one of the foregoing claims, characterized in that the connection cylinder is achieved by winding and crimping of a pre-cut part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9712092 | 1997-09-24 | ||
| FR9712092A FR2768863B1 (en) | 1997-09-24 | 1997-09-24 | CONNECTION DEVICE WITH SELF-INSULATING CONTACT ELEMENT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0905817A1 EP0905817A1 (en) | 1999-03-31 |
| EP0905817B1 true EP0905817B1 (en) | 2006-05-24 |
Family
ID=9511588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19980410101 Expired - Lifetime EP0905817B1 (en) | 1997-09-24 | 1998-09-11 | Connecting arrangement with insulation displacement contact element |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0905817B1 (en) |
| DE (1) | DE69834608T2 (en) |
| ES (1) | ES2263197T3 (en) |
| FR (1) | FR2768863B1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2787676A (en) * | 1955-03-21 | 1957-04-02 | Everett J Kellogg | Switch-type connector fitting for electrical appliances |
| CA1303170C (en) * | 1988-06-24 | 1992-06-09 | Winfield Warren Loose | Cylindrical insulation displacing connector |
| US5254015A (en) * | 1991-10-07 | 1993-10-19 | Amp Incorporated | Insulation displacing barrel terminal |
| US5321577A (en) * | 1992-05-08 | 1994-06-14 | The Whitaker Corporation | Protector module for telephone line pair |
| FR2723474B1 (en) * | 1994-08-04 | 1997-01-03 | Entrelec Sa | QUICK ACTION SELF-STRIPPING CONNECTION |
-
1997
- 1997-09-24 FR FR9712092A patent/FR2768863B1/en not_active Expired - Fee Related
-
1998
- 1998-09-11 ES ES98410101T patent/ES2263197T3/en not_active Expired - Lifetime
- 1998-09-11 EP EP19980410101 patent/EP0905817B1/en not_active Expired - Lifetime
- 1998-09-11 DE DE69834608T patent/DE69834608T2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0905817A1 (en) | 1999-03-31 |
| DE69834608T2 (en) | 2007-01-25 |
| FR2768863B1 (en) | 1999-10-22 |
| FR2768863A1 (en) | 1999-03-26 |
| ES2263197T3 (en) | 2006-12-01 |
| DE69834608D1 (en) | 2006-06-29 |
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