EP0867973B1 - Electric connector arrangement and module, in particular connection module comprising such a connector arragement - Google Patents

Electric connector arrangement and module, in particular connection module comprising such a connector arragement Download PDF

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Publication number
EP0867973B1
EP0867973B1 EP98400316A EP98400316A EP0867973B1 EP 0867973 B1 EP0867973 B1 EP 0867973B1 EP 98400316 A EP98400316 A EP 98400316A EP 98400316 A EP98400316 A EP 98400316A EP 0867973 B1 EP0867973 B1 EP 0867973B1
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EP
European Patent Office
Prior art keywords
slot
wire
eye
spring
guide part
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
Application number
EP98400316A
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German (de)
French (fr)
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EP0867973A1 (en
Inventor
Sylvain Barrat
Bernard Bechaz
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.)
ABB France SAS
Original Assignee
Entrelec SAS
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Filing date
Publication date
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Publication of EP0867973A1 publication Critical patent/EP0867973A1/en
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Publication of EP0867973B1 publication Critical patent/EP0867973B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
    • 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
    • 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
    • H01R4/247—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by springs

Definitions

  • connection arrangement comprising at least one part. connection conductor with one or more holding slots for receiving one or more electrical wires and at least one guide piece provided with a guide eye for electric wire which can be moved along a holding slot between two positions, one for insertion and the other for holding wire, by external action and / or by spring effect.
  • Document FR-A-2447620 describes a plurality of connection connection arrangements connection for electrical wires combining a connection piece with a slot wire retention and a guide piece, called actuating member, provided with guides consisting of aligned holes suitable for receiving a wire.
  • Each actuator is likely to move along a wire stripping and holding slot between two extreme positions under the effect of an external action exerted by example using a tool shank, such as a screwdriver shank, and / or under the action of a spring.
  • a tool shank such as a screwdriver shank
  • Thread is then likely to be carried by the actuating member between the edges of the slot in a so-called holding zone, after having possibly undergone entry stripping stripping locally eliminating an insulating sheath which covers its conductive soul. This movement is likely to be continued until second extreme position of the actuating member for which the wire remains held by its pinched core by the slit edges.
  • connection arrangements comprising at least one connection piece slot with which cooperates a guide piece of wire movable in translation the whole being housed in a modular box which can be operated from the outside of this housing using a tool rod, are known, as shown in particular document FR-A-2516711.
  • modules in particular of terminal block type, comprising arrangements of connection without guide piece to connection piece formed by a leaf spring folded in a loop.
  • This spring placed on a conductive bar projects beyond this bar by a first end which comes to penetrate a formed eye in the other end, pressing against the most extreme edge of the eye in because of the elasticity of the spring. It is possible to spread the first end of the edge of the eye where it rests by pressing with a push of external origin on a curved part which participates in the looping of the spring. This allows you to insert a conductive core of a wire to be connected between the edge said to support the wire of the eye and said first end of the spring and to hold this wire by the piece of connection as soon as the external thrust exerted on the spring is suppressed.
  • the invention provides a connection arrangement for conductive wire (s) according to the claim 1.
  • the arrangement comprises a guide part to loop type spring resiliently restoring the holding position of wire from the end which carries the eye in a displacement along the slit.
  • the arrangement comprises a part guide formed by a loop spring whose two ends are practically flat and at least approximately orthogonal, a first of these ends is perforated with at least one guide eye and protrudes beyond the other end which bears, directly or indirectly, on the workpiece connection where the slot along which the first moves end.
  • the arrangement comprises a part spring guide whose eye is longer than the area of the wire retention formed by the edges of a slot and whose arrangement is such that the edge of the most extreme eye comes at least to the end of the wire holding area which is located near the entrance of said slot, when the end of the guide part where this eye is located is resiliently displaced in limit by spring effect.
  • the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot made in a flat part of a conductive bar comprising a fold beyond which the spring of said guide piece is supported by a end.
  • the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot in a profiled part whose cross section transverse is of hollow polygonal appearance at a through end of which the spring of said guide piece is supported by one end.
  • the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot made in a flat part of a conductive bar comprising a fold beyond which the spring of said guide piece is pressed by a flat end, where the latter is inserted during assembly between this bar and at minus a spring loop positioning element of a housing where is housed the arrangement.
  • the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot in a profiled part whose cross section transverse is of hollow polygonal appearance at a through end of which the spring of said guide piece is supported by a planar end, where the latter is inserted during assembly between this profiled part and at least one spring loop positioning element of a housing where it is housed the arrangement.
  • the arrangement comprises a part connection comprising a slot whose edges are shaped to delimit a wire entry having thread sheath cutting lips.
  • the invention also provides a module, in particular a connection module which comprises a housing containing an arrangement having at least one of characteristics mentioned above.
  • Figures 1 and 2 each show a perspective diagram of an arrangement according to the invention for two different states of the spring which this comprises arrangement.
  • Figures 3 and 4 show a top view of the arrangement shown on the Figures 1 and 2 each for one of the states mentioned above.
  • Figures 5 and 6 each show a perspective diagram of a variant arrangement according to the invention for two different states of the spring which comprises this arrangement.
  • Figures 7 and 8 show a top view of the arrangement shown on the Figures 4 and 5 each for one of the states mentioned above.
  • connection arrangement 1 presented in FIGS. 1 and 2 is intended to allow the electrical connection of at least one external electrical wire 2 to a connection piece 3 for connecting this wire to part of an electrical appliance not shown.
  • this connection piece 3 is here supposed to be constituted by a metal conducting strip, as conventionally used in a terminal block type switchgear module for electrically connecting identical or similar elements of arrangement of connection between them.
  • the electric wire 1 is here supposed to include a single or multi-wire core conductive 4 surrounded by an insulating sheath 5.
  • the connecting piece 3 is assumed to include at least one holding slot of wire at one end.
  • this slot of support is arranged so as to open at one end of the bar which constitutes the connecting piece 3 in the longitudinal axis of the part 3A where it is located, as seen more clearly in Figures 3 and 4.
  • This part of strip 3A with a slot is folded, here at a right angle, relative to the part of strip 3B which it extends.
  • the bar 3 is assumed to be immobilized in a housing, usually made of insulating material, of the fitting module which comprises arrangement 1, only a portion of wall 6 of this housing being partially shown in Figure 2.
  • the immobilization of the bar 3 is for example obtained in a known manner in this field by wedging this bar between not shown reliefs of the housing and in particular reliefs carried by the wall 6 against which the strip 3 is assumed to be laterally pressed, a wall forming cover of the case or of an identical or similar case perfecting this immobilization.
  • the holding slot that comprises the part 3A is delimited by two edges 3A1 parallels which form a wedge holding zone for wire core and which are extended by lips 3A2, as can be seen in FIG. 4. These lips widen to form a slit entry through which it it is possible to introduce a core of wire having an appropriate dimension in the slot, this dimension being conventionally a diameter, the range of dimensions possible being in particular a function of the distance between the parallel edges 3A1.
  • these lips 3A2 are shaped so as to cut the sheath of a suitable wire 2 when inserting the core of this wire into the slot. They include, for example and as shown in Figure 2, a thin elongated strip 3A21 plane for guiding the core 4 of the wire, when the latter comes into contact with a lip, as well as a bevelled part 3A22 which runs along the strip 3A21 and which ensures the cutting of the sheath 5 of the wire when the latter is pushed against it.
  • the holding zone formed by the parallel edges 3A1 a slot of a length chosen according to the number of threads likely to have their souls firmly held aligned between these parallel edges.
  • connection part It is planned to associate a wire guide part with the connection part mentioned above. to ensure proper guidance of a wire from an insertion position for which this wire is appropriately placed in front of the slot up to a position for which the core of this wire is held by wedging between the parallel edges 3A1.
  • the appropriate position thread insertion is at least theoretically as this thread looks orthogonally to the wall 3A where the slot is made and to a height such, with respect to this wall, that the wire sheath comes laterally in contact with the lips 3A22, when the wire is brought together by translation in a direction given by the longitudinal axis of the slot.
  • a guide piece 7 with a loop type spring is associated with a connecting piece 3 to form a connecting arrangement 1 for wire (s) conductor (s).
  • the guide piece 7 is constituted by a loop spring, at least one end of which has an eye 8 allowing the passage of a wire or several according to the needs.
  • the spring can possibly be provided with several eyes, for example aligned to cooperate with parallel slots of one or more connecting piece (s).
  • the eye 8 is likely to be provided to receive a single wire which it ensures the displacement from the insertion position for which this wire is placed so suitable in front of the slot inlet to a holding position for which the core of this wire is held between the parallel edges 3A1 by wedging.
  • the guide piece 7 is then capable of ensuring the displacement of the wire from the insertion position to the holding position and vice versa if the eye is shaped for this purpose.
  • This eye 8 is then constituted by a conduit whose length can possibly reduce to the thickness of the spring constituting the guide part in the embodiment shown and the opening of which may take different shapes and in particular be circular; square, rectangular or slightly oblong.
  • the eye 8 can optionally be formed in a nozzle subject to the end of the spring of the guide piece 7, such a nozzle, not shown being likely to be similar to that visible in FIG. 1 of document DE-A-2706482 cited above which has two aligned eyes sliding along a wire holding slot on either side of the wall where this slot is formed.
  • the eye 8 can also extend over a length depending on the length of the zone retaining core determined by the parallel edges 3A1 of the slot of the part connection 3 with which cooperates the guide piece 7 which comprises this eye, in particularly in the case of the alternative embodiment presented in FIGS. 5 to 8.
  • Such an eye whose opening is likely to be rectangular as presented here or more or less oblong, is likely to have a length allowing the insertion of a core of wire between the parallel edges 3A1, up to the holding position as far as possible from the slot inlet and the return from the eye to the position it originally had. The latter position being that for which it is possible for this eye to receive a wire to be inserted into the slot in the appropriate insertion position provided for such wires with respect to the slot entrance.
  • Such a configuration of eye then makes it possible to immobilize several threads by successive insertion of the souls of these threads in the same slot where these souls are then stuck aligned.
  • the eye 8 is formed in a end 7A of planar appearance of the spring constituting the guide part 7, the other end 7B of this spring being intended to take directly or indirectly support on the connection piece 3 so that the end 7A can return to a rest position after being moved relative to the connecting piece by an external action.
  • the spring will be positioned in a determined manner relative to the connection piece with which it cooperates in a connection arrangement.
  • the wall 6 comprises at least minus a positioning relief 11 whose shape is determined so known to the skilled person to allow the spring to work as provided in a space where it is confined for example with the assistance of the wall forming a cover already mentioned above.
  • the end 7B of the spring is flat and pressed against part 3B of connection piece 3 which is perpendicular to part 3A where the slot is located, on the other side of part 3B compared to Part 3A.
  • the spring is pressed against part 3B directly in the illustrated embodiment, it is alternatively possible that this support is effected by means of an element and for example of a relief or of a wall possibly projecting from the wall 6, against which the end 7B of the guide piece spring and connection piece 3 then come to bear opposite way.
  • the guide piece loop spring have planar ends 7A and 7B which remain at least roughly orthogonal regardless of the position taken by the end 7A carrying the eye 8, either naturally by spring effect or under the effect of an external pressure applied to the spring for example using a push button not shown or a tool rod not shown.
  • the end 7A is provided there projecting beyond the other end 7B provided in press on part 3B of the connection piece, whatever the displacement of this end 7A, which it has been indicated that it allows the eye 8 to move from an extreme position allowing positioning, in front of the slot entrance formed in part 3A, of a wire 2 introduced into this eye and this up to a extreme position of core of wire between the parallel edges 3A1 of the slot and as far as possible from the slot inlet.
  • the two ends 7A and 7B of the guide piece spring are interconnected by an intermediate part of curvature determined here assumed to be composed of a series of arcuate elements determined in a manner known to those skilled in the art for that the spring has determined elastic characteristics which are depending on the nature of the material constituting this spring of the treatments possibly applied to this material and the shape chosen for the spring.
  • the spring has three zones with alternating curvatures from one to the next, so that a first of these zones which follows the end portion 7B allows the spring to partially surround a bulge of cylindrical appearance 11B in relief positioning 11 which constitutes practically an axis of rotation relative to which moves the spring portion comprising the part 7A where the eye 8 whose displacement is sought.
  • the second area whose curvature is opposite to that of the first zone mentioned above cooperates with the third zone whose curvature is the same direction as that of the first zone for allow movement of the end 7A and the eye 8, or at least the edge the most extreme of this eye, along the slit which comprises part 3A in a displacement at least roughly parallel to this part 3A.
  • the end 7A is here assumed to be resiliently brought back to its extreme position where the eye 8 is in position above the holding zone delimited by the parallel edges 3A1.
  • External pressure for example exerted known to those skilled in the art using a tool rod supposed to penetrate the housing in which is housed in particular the spring to press on the third zone curve of this spring so as to push it towards the connection piece 3, causes the end 7A to move until the eye 8 is beyond the entrance to the slot in part 3A.
  • the relaxation of the external pressure allows the return from the end 7A by spring effect and causes the insertion of the core 4 of the wire 2 in the sheath where this core reaches either the most extreme position of maintenance for which the spring has elastically returned to its equilibrium position natural, either by pressing against another wire previously inserted in the same slot, the spring then remaining partially constrained.
  • Figures 5 to 8 relate to an alternative embodiment using a different connection piece from the previous one.
  • the material elements of this achievement which are likely to be identical or similar to those appearing in the previously described embodiment here retain the same references.
  • connection arrangement 1 'shown in Figures 5 and 6 is intended to allow the electrical connection of at least one external electrical wire 2 to a connection piece 3 'for connecting this wire to part of an electrical appliance not shown.
  • the connecting piece 3 ' which has a wire core (s) holding slot with a stripping entry of wire sheath having at least approximately the same function as the slot in the connecting piece 3 mentioned above.
  • connection piece 3 ' is for example of the type described in the document EP-A-0265321, it can be obtained by cutting and local folding and thinning from a flat metal blank and has a 3'P profiled part, one face of which is extended by a 3'B part, of strip type, which is only sketched in Figures 5 and 6.
  • This portion forming a bar 3'B is intended to provide an electrical connection of the connecting piece 3 'with part of an electrical apparatus, not shown, as usual in the matter.
  • the profiled part 3'P has for example a hollow polygonal cross section which appears here as a U whose free ends have been obliquely and also folded towards each other, as shown in Figure 6. These folds result in the formation of two 3'PA longitudinal end folds having parallel 3'PA1 edges which define the wire core (s) holding area of the holding and stripping slot with the 3'P profiled part of the workpiece connection which has these folds and edges.
  • the two parallel edges of the slot that the 3'PA folds form by approximation are fitted with 3'PA2 wire sheath stripping lips obtained for example by oblique and symmetrical cutting then possibly machining thinning folds at the same of the two ends of the 3'P profiled part which includes them, this profiled part delimiting a cavity here shows emerging at these two ends.
  • the other end of the 3'P profiled part is here intended for serve as a support wall at one end 7B of a guide piece spring 7 corresponding to that mentioned in connection with FIGS. 1 to 4 and here assumed in loop as before.
  • the end 7B is planar and comes at least partially close the cavity defined by the 3'P profiled part at the end of this part where it comes to rest at the end on the walls which surround the cavity.
  • the connecting piece 3 ' is assumed to be immobilized between reliefs of a housing of the electrical switchgear module which includes the connection arrangement which this piece is part of.
  • the means necessary for this immobilization are not not described here to the extent that they are well known to those skilled in the art and where on the other hand they have only an indirect relationship with the object of the present invention.
  • the guide piece spring 7 is positioned in a determined manner with respect to the connection piece 3 'with which it cooperates in a connection arrangement.
  • this positioning implies a positioning relief 11 of the housing where are housed the connecting piece 3 'and the guide piece spring 7 associated with this piece.
  • the shape of the relief 11 is produced as previously to allow the spring to work in a space where it is confined, this space being for example provided between the wall 6 and a wall forming a cover similar to that mentioned in the part of descriptive text relating to the summary performance presented on the Figures 1 to 4.
  • the support of the guide part spring 7 at the end of the profiled part 3'P by a flat end 7B is here shown produced by direct support of this flat end against the profiled part 3'P. As already indicated above, this support can also be done indirectly if a material element, such as a case, not shown here, is interposed between the end 7B of the workpiece spring guide and the end of the profiled part where said spring end comes in support..
  • the other end of spring 7A is here assumed to be flat and provided with an eye 8 having at least approximately the same characteristics as the eye mentioned above.
  • the end 7A of the guide part spring where finds eye 8 can move along the slot of the profiled part 3'P of the part 3 'between two positions, one of these positions allowing the introduction a wire 2 in this eye 8 in the appropriate insertion position in front of the entry of slot formed by the lips 3'PA2, the other being the most extreme position of holding a wire by wedging the core of this wire between the parallel edges 3'PAlde the slot of the profiled part 3'P.
  • the eye 8 can be provided for one or more aligned wires

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Description

L'invention concerne un agencement de connexion comportant au moins une pièce conductrice de connexion dotée d'une ou de plusieurs fentes de maintien permettant de recevoir un ou plusieurs fils électriques et au moins une pièce guide dotée d'un chas de guidage pour fil électrique qui est déplaçable le long d'une fente de maintien entre deux positions, l'une d'insertion et l'autre de maintien de fil, par action externe et/ou par effet ressort.The invention relates to a connection arrangement comprising at least one part. connection conductor with one or more holding slots for receiving one or more electrical wires and at least one guide piece provided with a guide eye for electric wire which can be moved along a holding slot between two positions, one for insertion and the other for holding wire, by external action and / or by spring effect.

Elle concerne aussi les modules d'appareillage électrique, notamment de raccordement, tels que par exemple les blocs de jonction, susceptibles d'être équipés de tels agencements.It also relates to the modules of electrical equipment, in particular of connection, such as for example terminal blocks, which may be equipped with such arrangements.

Le document FR-A-2447620 décrit une pluralité d'agencements de connexion de connexion pour fils électriques combinant une pièce de connexion à fente de maintien de fil et une pièce guide, dite organe d'actionnement, munis de guidages constitués de trous alignés aptes à recevoir un fil. Chaque organe d'actionnement est susceptible de se déplacer le long d'une fente de dénudage et de maintien de fil entre deux positions extrêmes sous l'effet d'une action externe exercée par exemple au moyen d'une tige d'outil, telle une tige de tournevis, et/ou sous l'action d'un ressort. Dans une des positions extrêmes de déplacement d'un organe d'actionnement, il est possible d'insérer un fil, préalablement positionné dans les guidages constitués par des trous alignés, devant une entrée de fente de maintien dans une position propice à l'insertion de ce fil entre les bords de la fente. Le fil est alors susceptible d'être emmené par l'organe d'actionnement entre les bords de la fente dans une zone dite de maintien, après avoir éventuellement subi en entrée de fente un dénudage éliminant localement une gaine isolante qui recouvre son âme conductrice. Ce déplacement est susceptible d'être poursuivi jusqu'à une seconde position extrême de l'organe d'actionnement pour laquelle le fil reste maintenu par son âme pincée par les bords de fente.Document FR-A-2447620 describes a plurality of connection connection arrangements connection for electrical wires combining a connection piece with a slot wire retention and a guide piece, called actuating member, provided with guides consisting of aligned holes suitable for receiving a wire. Each actuator is likely to move along a wire stripping and holding slot between two extreme positions under the effect of an external action exerted by example using a tool shank, such as a screwdriver shank, and / or under the action of a spring. In one of the extreme positions of movement of an organ actuation, it is possible to insert a wire, previously positioned in the guides formed by aligned holes, in front of a holding slot entry in a position suitable for the insertion of this wire between the edges of the slot. Thread is then likely to be carried by the actuating member between the edges of the slot in a so-called holding zone, after having possibly undergone entry stripping stripping locally eliminating an insulating sheath which covers its conductive soul. This movement is likely to be continued until second extreme position of the actuating member for which the wire remains held by its pinched core by the slit edges.

D'autres agencements de connexion, comportant au moins une pièce de connexion à fente avec laquelle coopère une pièce guide de fil mobile en translation l'ensemble étant logé dans un boítier modulaire et manoeuvrable depuis l'extérieur de ce boítier à l'aide d'une tige d'outil, sont connus, comme le montre notamment le document FR-A-2516711.Other connection arrangements, comprising at least one connection piece slot with which cooperates a guide piece of wire movable in translation the whole being housed in a modular box which can be operated from the outside of this housing using a tool rod, are known, as shown in particular document FR-A-2516711.

Ces agencements ont pour inconvénient d'exiger un volume de logement relativement important pour chaque pièce guide afin d'en permettre le déplacement et pour le ressort dans le cas du premier document évoqué ci-dessus.These arrangements have the drawback of requiring a volume of accommodation relatively important for each guide piece in order to allow the displacement and for the spring in the case of the first document mentioned above.

On connaít par ailleurs, notamment par le document DE-A-2706482, des modules, notamment de type bloc de jonction, comportant des agencements de connexion sans pièce guide à pièce de connexion formée par un ressort à lame replié en boucle. Ce ressort placé sur un barrette conductrice saille au delà de cette barrette par une première extrémité qui vient pénétrer dans un chas ménagé dans l'autre extrémité, en s'appuyant contre le bord le plus extrême du chas en raison de l'élasticité du ressort. Il est possible d'écarter la première extrémité du bord du chas où elle s'appuie en pressant par une poussée d'origine externe sur une partie courbe qui participe au bouclage du ressort. Ceci permet d'insérer une âme conductrice d'un fil à raccorder entre le bord dit d'appui de fil du chas et ladite première extrémité du ressort et de faire tenir ce fil par la pièce de connexion dès que la poussée externe exercée sur le ressort est supprimée.We also know, in particular from document DE-A-2706482, modules, in particular of terminal block type, comprising arrangements of connection without guide piece to connection piece formed by a leaf spring folded in a loop. This spring placed on a conductive bar projects beyond this bar by a first end which comes to penetrate a formed eye in the other end, pressing against the most extreme edge of the eye in because of the elasticity of the spring. It is possible to spread the first end of the edge of the eye where it rests by pressing with a push of external origin on a curved part which participates in the looping of the spring. This allows you to insert a conductive core of a wire to be connected between the edge said to support the wire of the eye and said first end of the spring and to hold this wire by the piece of connection as soon as the external thrust exerted on the spring is suppressed.

L'invention propose un agencement de connexion pour fil(s) conducteur(s) selon la revendication 1.The invention provides a connection arrangement for conductive wire (s) according to the claim 1.

Selon une caractéristique de l'invention, l'agencement comporte une pièce guide à ressort de type en boucle assurant élastiquement le rappel en position de maintien de fil de l'extrémité qui porte le chas dans un déplacement le long de la fente.According to a characteristic of the invention, the arrangement comprises a guide part to loop type spring resiliently restoring the holding position of wire from the end which carries the eye in a displacement along the slit.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide constituée par un ressort en boucle dont les deux extrémités sont pratiquement planes et au moins approximativement orthogonales, une première de ces extrémités est perforée d'au moins un chas de guidage et saille au delà de l'autre extrémité qui appuie, directement ou indirectement, sur la pièce de connexion où se situe la fente le long de laquelle se déplace la première extrémité.According to another characteristic of the invention, the arrangement comprises a part guide formed by a loop spring whose two ends are practically flat and at least approximately orthogonal, a first of these ends is perforated with at least one guide eye and protrudes beyond the other end which bears, directly or indirectly, on the workpiece connection where the slot along which the first moves end.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide à ressort dont le chas est d'une longueur supérieure à celle de la zone de maintien de fil constituée par les bords d'une fente et dont la disposition est telle que le bord du chas le plus extrême vienne au moins jusqu'à l'extrémité de la zone de maintien de fil qui se situe près de l'entrée de ladite fente, lorsque l'extrémité de pièce guide où se trouve ce chas est élastiquement déplacée en limite par effet de ressort.According to another characteristic of the invention, the arrangement comprises a part spring guide whose eye is longer than the area of the wire retention formed by the edges of a slot and whose arrangement is such that the edge of the most extreme eye comes at least to the end of the wire holding area which is located near the entrance of said slot, when the end of the guide part where this eye is located is resiliently displaced in limit by spring effect.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide à ressort de type en boucle coopérant avec une pièce de connexion ayant une fente ménagée dans une partie plane d'une barrette conductrice comportant une pliure au delà de laquelle le ressort de ladite pièce guide prend appui par une extrémité.According to another characteristic of the invention, the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot made in a flat part of a conductive bar comprising a fold beyond which the spring of said guide piece is supported by a end.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide à ressort de type en boucle coopérant avec une pièce de connexion comportant une fente ménagée dans une partie profilée dont la section transversale est d'allure polygonale creuse à une extrémité débouchante de laquelle le ressort de ladite pièce guide prend appui par une extrémité.According to another characteristic of the invention, the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot in a profiled part whose cross section transverse is of hollow polygonal appearance at a through end of which the spring of said guide piece is supported by one end.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide à ressort de type en boucle, coopérant avec une pièce de connexion ayant une fente ménagée dans une partie plane d'une barrette conductrice comportant une pliure au delà de laquelle le ressort de ladite pièce guide se plaque par une extrémité plane, où cette dernière est insérée au montage entre cette barrette et au moins un élément de positionnement de boucle de ressort d'un boítier où se loge l'agencement.According to another characteristic of the invention, the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot made in a flat part of a conductive bar comprising a fold beyond which the spring of said guide piece is pressed by a flat end, where the latter is inserted during assembly between this bar and at minus a spring loop positioning element of a housing where is housed the arrangement.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce guide à ressort de type en boucle, coopérant avec une pièce de connexion comportant une fente ménagée dans une partie profilée dont la section transversale est d'allure polygonale creuse à une extrémité débouchante de laquelle le ressort de ladite pièce guide prend appui par une extrémité plane, où cette dernière est insérée au montage entre cette partie profilée et au moins un élément de positionnement de boucle de ressort d'un boítier où se loge l'agencement.According to another characteristic of the invention, the arrangement comprises a part loop type spring guide cooperating with a connecting piece having a slot in a profiled part whose cross section transverse is of hollow polygonal appearance at a through end of which the spring of said guide piece is supported by a planar end, where the latter is inserted during assembly between this profiled part and at least one spring loop positioning element of a housing where it is housed the arrangement.

Selon une autre caractéristique de l'invention, l'agencement comporte une pièce de connexion comportant une fente dont les bords sont conformés pour délimiter une entrée de fil disposant de lèvres de découpe de gaine de fil.According to another characteristic of the invention, the arrangement comprises a part connection comprising a slot whose edges are shaped to delimit a wire entry having thread sheath cutting lips.

L'invention propose aussi un module, notamment de raccordement qui comporte un boítier contenant un agencement présentant au moins l'une des caractéristiques évoquées ci-dessus.The invention also provides a module, in particular a connection module which comprises a housing containing an arrangement having at least one of characteristics mentioned above.

L'invention, ses caractéristiques et ses avantages sont précisés dans la description qui suit en liaison avec les figures évoquées ci-dessous. The invention, its characteristics and its advantages are specified in the description which follows in conjunction with the figures mentioned below.

Les figures 1 et 2 présentent chacune un schéma en perspective d'un agencement selon l'invention pour deux états différents du ressort que comporte cet agencement.Figures 1 and 2 each show a perspective diagram of an arrangement according to the invention for two different states of the spring which this comprises arrangement.

Les figures 3 et 4 présentent une vue de dessus de l'agencement présenté sur les figures 1 et 2 chacune pour un des états évoqués ci-dessus.Figures 3 and 4 show a top view of the arrangement shown on the Figures 1 and 2 each for one of the states mentioned above.

Les figures 5 et 6 présentent chacune un schéma en perspective d'une variante d'agencement selon l'invention pour deux états différents du ressort que comporte cet agencement.Figures 5 and 6 each show a perspective diagram of a variant arrangement according to the invention for two different states of the spring which comprises this arrangement.

Les figures 7 et 8 présentent une vue de dessus de l'agencement présenté sur les figures 4 et 5 chacune pour un des états évoqués ci-dessus.Figures 7 and 8 show a top view of the arrangement shown on the Figures 4 and 5 each for one of the states mentioned above.

L'agencement de connexion 1 présenté sur les figures 1 et 2 est destiné à permettre la connexion électrique d'au moins un fil électrique 2 externe à une pièce de connexion 3 pour relier ce fil à une partie d'un appareillage électrique non représenté. Dans l'exemple de réalisation présenté, cette pièce de connexion 3 est ici supposée être constituée par une barrette conductrice en métal, comme classiquement utilisée dans un module d'appareillage de type bloc de jonction pour relier électriquement des éléments identiques ou similaires d'agencement de connexion entre eux.The connection arrangement 1 presented in FIGS. 1 and 2 is intended to allow the electrical connection of at least one external electrical wire 2 to a connection piece 3 for connecting this wire to part of an electrical appliance not shown. In the embodiment shown, this connection piece 3 is here supposed to be constituted by a metal conducting strip, as conventionally used in a terminal block type switchgear module for electrically connecting identical or similar elements of arrangement of connection between them.

Le fil électrique 1 est ici supposé comporter une âme mono ou multifilaire conductrice 4 entourée par une gaine isolante 5.The electric wire 1 is here supposed to include a single or multi-wire core conductive 4 surrounded by an insulating sheath 5.

La pièce de connexion 3 est supposée comporter au moins une fente de maintien de fil à une de ses extrémités. Dans la réalisation présentée, cette fente de maintien est ménagée de manière à s'ouvrir à une extrémité de la barrette qui constitue la pièce de connexion 3 dans l'axe longitudinal de la partie 3A où elle se situe, comme on le voit plus clairement sur les figures 3 et 4. Cette partie de barrette 3A dotée d'une fente est pliée, ici à angle droit, par rapport à la partie de barrette 3B qu'elle prolonge. La barrette 3 est supposée immobilisée dans un boítier, usuellement en matériau isolant, du module d'appareillage qui comporte l'agencement 1, seule une portion de paroi 6 de ce boítier étant partiellement représentée en figure 2. L'immobilisation de la barrette 3 est par exemple obtenue de manière connue en ce domaine par coincement de cette barrette entre des reliefs non représentés du boítier et en particulier des reliefs portés par la paroi 6 contre laquelle la barrette 3 est supposée latéralement plaquée, une paroi formant couvercle du boítier ou d'un boítier identique ou similaire venant parfaire cette immobilisation.The connecting piece 3 is assumed to include at least one holding slot of wire at one end. In the embodiment presented, this slot of support is arranged so as to open at one end of the bar which constitutes the connecting piece 3 in the longitudinal axis of the part 3A where it is located, as seen more clearly in Figures 3 and 4. This part of strip 3A with a slot is folded, here at a right angle, relative to the part of strip 3B which it extends. The bar 3 is assumed to be immobilized in a housing, usually made of insulating material, of the fitting module which comprises arrangement 1, only a portion of wall 6 of this housing being partially shown in Figure 2. The immobilization of the bar 3 is for example obtained in a known manner in this field by wedging this bar between not shown reliefs of the housing and in particular reliefs carried by the wall 6 against which the strip 3 is assumed to be laterally pressed, a wall forming cover of the case or of an identical or similar case perfecting this immobilization.

La fente de maintien que comporte la partie 3A est délimitée par deux bords parallèles 3A1 qui forment une zone de maintien par coincement pour âme de fil et qui se prolongent par des lèvres 3A2, ainsi qu'on le voit sur la figure 4. Ces lèvres s'évasent pour former une entrée de fente par l'intermédiaire de laquelle il est possible d'introduire une âme de fil ayant une dimension appropriée dans la fente, cette dimension étant classiquement un diamètre, la gamme de dimensions possibles étant notamment fonction de la distance séparant les bords parallèles 3A1.The holding slot that comprises the part 3A is delimited by two edges 3A1 parallels which form a wedge holding zone for wire core and which are extended by lips 3A2, as can be seen in FIG. 4. These lips widen to form a slit entry through which it it is possible to introduce a core of wire having an appropriate dimension in the slot, this dimension being conventionally a diameter, the range of dimensions possible being in particular a function of the distance between the parallel edges 3A1.

Le plus souvent ces lèvres 3A2 sont conformées de manière à entailler la gaine d'un fil 2 approprié lors de l'insertion de l'âme de ce fil dans la fente. Elles comportent, par exemple et comme montré en figure 2, une mince bande allongée 3A21 plane permettant de guider l'âme 4 du fil, lorsque celle-ci entre en contact avec une lèvre, ainsi qu'une partie biseautée 3A22 qui longe la bande 3A21 et qui assure la découpe de la gaine 5 du fil lorsque celle-ci est poussée contre elle.Most often these lips 3A2 are shaped so as to cut the sheath of a suitable wire 2 when inserting the core of this wire into the slot. They include, for example and as shown in Figure 2, a thin elongated strip 3A21 plane for guiding the core 4 of the wire, when the latter comes into contact with a lip, as well as a bevelled part 3A22 which runs along the strip 3A21 and which ensures the cutting of the sheath 5 of the wire when the latter is pushed against it.

Comme il est connu, la zone de maintien formée par les bords parallèles 3A1 d'une fente a une longueur choisie en fonction du nombre de fils susceptibles d'avoir leurs âmes fermement maintenues alignées entre ces bords parallèles.As is known, the holding zone formed by the parallel edges 3A1 a slot of a length chosen according to the number of threads likely to have their souls firmly held aligned between these parallel edges.

Il est prévu d'associer une pièce guide fil à la pièce de connexion évoquée ci-dessus pour assurer un guidage approprié d'un fil depuis une position d'insertion pour laquelle ce fil est placé de manière appropriée devant rentrée de la fente jusqu'à une position pour laquelle l'âme de ce fil est maintenue par coincement entre les bords parallèles 3A1. Comme il est connu la position appropriée d'insertion de fil est au moins théoriquement telle que ce fil se présente orthogonalement par rapport à la paroi 3A où est ménagée la fente et à une hauteur telle, par rapport à cette paroi, que la gaine de fil vienne latéralement en contact avec les lèvres 3A22, lors du rapprochement du fil par translation dans une direction donnée par l'axe longitudinal de la fente.It is planned to associate a wire guide part with the connection part mentioned above. to ensure proper guidance of a wire from an insertion position for which this wire is appropriately placed in front of the slot up to a position for which the core of this wire is held by wedging between the parallel edges 3A1. As is known the appropriate position thread insertion is at least theoretically as this thread looks orthogonally to the wall 3A where the slot is made and to a height such, with respect to this wall, that the wire sheath comes laterally in contact with the lips 3A22, when the wire is brought together by translation in a direction given by the longitudinal axis of the slot.

Selon l'invention, une pièce guide 7 à ressort de type en boucle est associée à une pièce de connexion 3 pour former un agencement de connexion 1 pour fil(s) conducteur(s). Dans une forme de réalisation, la pièce guide 7 est constituée par un ressort en boucle dont au moins une extrémité comporte un chas 8 permettant le passage d'un fil ou de plusieurs suivant les besoins. Le ressort peut éventuellement être doté de plusieurs chas, par exemple alignés pour coopérer avec des fentes parallèles d'une ou de plusieurs pièce(s) de connexion. Une telle réalisation aisément déductible par l'homme de métier de celles présentées ici n'est pas développée ici plus avant.According to the invention, a guide piece 7 with a loop type spring is associated with a connecting piece 3 to form a connecting arrangement 1 for wire (s) conductor (s). In one embodiment, the guide piece 7 is constituted by a loop spring, at least one end of which has an eye 8 allowing the passage of a wire or several according to the needs. The spring can possibly be provided with several eyes, for example aligned to cooperate with parallel slots of one or more connecting piece (s). Such a easily presented by the skilled person from those presented here is not developed here further.

Le chas 8 est susceptible d'être prévu pour recevoir un fil unique dont il assure le déplacement depuis la position d'insertion pour lequel ce fil est placé de manière appropriée devant l'entrée de fente jusqu'à une position de maintien pour laquelle l'âme de ce fil est maintenu entre les bords parallèles 3A1 par coincement.The eye 8 is likely to be provided to receive a single wire which it ensures the displacement from the insertion position for which this wire is placed so suitable in front of the slot inlet to a holding position for which the core of this wire is held between the parallel edges 3A1 by wedging.

La pièce guide 7 est alors susceptible d'assurer le déplacement du fil de la position d'insertion à la position de maintien et vice-versa si le chas est conformé à cet effet. Ce chas 8 est alors constitué par un conduit dont la longueur peut éventuellement se réduire à l'épaisseur du ressort constituant la pièce guide dans la forme de réalisation représentée et dont l'ouverture peut prendre différentes formes et notamment être circulaire; carrée, rectangulaire ou légèrement oblongue. Le chas 8 peut éventuellement être ménagé dans un embout assujetti à l'extrémité du ressort de la pièce guide 7, un tel embout, non représenté étant susceptible d'être analogue à celui visible sur la figure 1 du document DE-A-2706482 cité plus haut qui comporte deux chas alignés venant coulisser le long d'une fente de maintien de fil de part et d'autre de la paroi où cette fente est ménagée.The guide piece 7 is then capable of ensuring the displacement of the wire from the insertion position to the holding position and vice versa if the eye is shaped for this purpose. This eye 8 is then constituted by a conduit whose length can possibly reduce to the thickness of the spring constituting the guide part in the embodiment shown and the opening of which may take different shapes and in particular be circular; square, rectangular or slightly oblong. The eye 8 can optionally be formed in a nozzle subject to the end of the spring of the guide piece 7, such a nozzle, not shown being likely to be similar to that visible in FIG. 1 of document DE-A-2706482 cited above which has two aligned eyes sliding along a wire holding slot on either side of the wall where this slot is formed.

Le chas 8 peut aussi s'étendre sur une longueur fonction de la longueur de la zone de maintien d'âme déterminée par les bords parallèles 3A1 de la fente de la pièce de connexion 3 avec laquelle coopère la pièce guide 7 qui comporte ce chas, en particulier dans le cas de la variante de réalisation présentée sur les figures 5 à 8. Un tel chas, dont l'ouverture est susceptible d'être rectangulaire comme présenté ici ou de forme plus ou moins oblongue, est susceptible d'avoir une longueur permettant l'enfoncement d'une âme de fil entre les bords parallèles 3A1, jusqu'à la position de maintien la plus éloignée possible de l'entrée de fente et le retour du chas à la position qu'il avait initialement. Cette dernière position étant celle pour laquelle il est possible à ce chas de recevoir un fil à insérer dans la fente dans la position appropriée d'insertion prévue pour de tels fils par rapport à l'entrée de fente. Une telle configuration de chas permet alors d'immobiliser plusieurs fils par insertion successive des âmes de ces fils dans une même fente où ces âmes sont alors coincées alignées.The eye 8 can also extend over a length depending on the length of the zone retaining core determined by the parallel edges 3A1 of the slot of the part connection 3 with which cooperates the guide piece 7 which comprises this eye, in particularly in the case of the alternative embodiment presented in FIGS. 5 to 8. Such an eye, whose opening is likely to be rectangular as presented here or more or less oblong, is likely to have a length allowing the insertion of a core of wire between the parallel edges 3A1, up to the holding position as far as possible from the slot inlet and the return from the eye to the position it originally had. The latter position being that for which it is possible for this eye to receive a wire to be inserted into the slot in the appropriate insertion position provided for such wires with respect to the slot entrance. Such a configuration of eye then makes it possible to immobilize several threads by successive insertion of the souls of these threads in the same slot where these souls are then stuck aligned.

Le déplacement du chas 8 du ressort d'une pièce guide 7 par rapport à une pièce de connexion 3 à laquelle cette pièce guide est associée est ici supposé prévu pour s'effectuer selon un axe de déplacement qui est parallèle à l'axe longitudinal de la fente que comporte cette pièce de connexion au niveau d'une partie 3A ici supposée plane.The displacement of the eye 8 of the spring of a guide part 7 relative to a part connection 3 with which this guide part is associated is here assumed to be provided to take place along an axis of movement which is parallel to the longitudinal axis of the slot that this connection piece has at a part 3A here supposed to be plane.

Il est en effet possible à l'homme de métier de prévoir la réalisation d'une fente dans une partie qui soit courbe au lieu d'être plane et un déplacement élastique de la partie de pièce guide où est ménagé un chas qui permette à ce dernier un déplacement selon une courbe correspondant à celle donnée à la partie comportant la fente.It is indeed possible for the skilled person to provide for the production of a slit in a part which is curved instead of being planar and an elastic displacement of the part of the guide part where an eye is formed which allows the latter a displacement according to a curve corresponding to that given to the part comprising the slot.

Dans la forme de réalisation présentée ici, le chas 8 est ménagé dans une extrémité 7A d'allure plane du ressort constituant la pièce guide 7, l'autre extrémité 7B de ce ressort étant destinée à prendre directement ou indirectement appui sur la pièce de connexion 3 de manière que l'extrémité 7A puisse revenir à une position de repos après avoir été déplacée par rapport à la pièce de connexion par une action externe.In the embodiment presented here, the eye 8 is formed in a end 7A of planar appearance of the spring constituting the guide part 7, the other end 7B of this spring being intended to take directly or indirectly support on the connection piece 3 so that the end 7A can return to a rest position after being moved relative to the connecting piece by an external action.

Il est prévu que le ressort soit positionné de manière déterminée par rapport à la pièce de connexion avec laquelle il coopère dans un agencement de connexion. Dans l'exemple de réalisation envisagé, il est supposé que la paroi 6 comporte au moins un relief de positionnement 11 dont la forme est déterminée de manière connue de l'homme de métier pour permettre au ressort de travailler comme prévu dans un espace où il est confiné par exemple avec l'assistance de la paroi formant couvercle déjà évoqué plus haut.It is expected that the spring will be positioned in a determined manner relative to the connection piece with which it cooperates in a connection arrangement. In the exemplary embodiment envisaged, it is assumed that the wall 6 comprises at least minus a positioning relief 11 whose shape is determined so known to the skilled person to allow the spring to work as provided in a space where it is confined for example with the assistance of the wall forming a cover already mentioned above.

Dans la réalisation envisagée sur les figures 1 à 4, l'extrémité 7B du ressort est plane et plaquée contre la partie 3B de la pièce de connexion 3 qui est perpendiculaire à la partie 3A où se trouve la fente, de l'autre côté de la partie 3B par rapport à la partie 3A. L'appui du ressort contre la partie 3B s'effectue directement dans la réalisation représentée, il est alternativement possible que cet appui s'effectue par l'intermédiaire d'un élément et par exemple d'un relief ou d'une paroi saillant éventuellement de la paroi 6, contre lequel l'extrémité 7B du ressort de pièce guide et la pièce de connexion 3 viennent alors en appui de manière opposée.In the embodiment envisaged in FIGS. 1 to 4, the end 7B of the spring is flat and pressed against part 3B of connection piece 3 which is perpendicular to part 3A where the slot is located, on the other side of part 3B compared to Part 3A. The spring is pressed against part 3B directly in the illustrated embodiment, it is alternatively possible that this support is effected by means of an element and for example of a relief or of a wall possibly projecting from the wall 6, against which the end 7B of the guide piece spring and connection piece 3 then come to bear opposite way.

Dans les formes de réalisation présentées sur les figures 1 à 8, il est prévu que le ressort en boucle de pièce guide aient des extrémités d'allure plane 7A et 7B qui restent au moins à peu près orthogonales quelle que soit la position prise par l'extrémité 7A portant le chas 8, soit naturellement par effet ressort soit sous l'effet d'une pression externe appliquée au ressort par exemple à l'aide d'un poussoir non représenté ou encore d'une tige d'outil non représentée.In the embodiments shown in Figures 1 to 8, it is expected that the guide piece loop spring have planar ends 7A and 7B which remain at least roughly orthogonal regardless of the position taken by the end 7A carrying the eye 8, either naturally by spring effect or under the effect of an external pressure applied to the spring for example using a push button not shown or a tool rod not shown.

L'extrémité 7A y est prévue en saillie au delà de l'autre extrémité 7B prévue en appui sur la partie 3B de la pièce de connexion, quel que soit le déplacement de cette extrémité 7A, dont il a été indiqué qu'il permettait au chas 8 de se déplacer d'une position extrême permettant le positionnement, devant l'entrée de la fente ménagée dans la partie 3A, d'un fil 2 introduit dans ce chas et ce jusqu'à une position extrême de maintien d'âme de fil entre les bords parallèles 3A1 de la fente et à la plus grande distance possible de l'entrée de fente. The end 7A is provided there projecting beyond the other end 7B provided in press on part 3B of the connection piece, whatever the displacement of this end 7A, which it has been indicated that it allows the eye 8 to move from an extreme position allowing positioning, in front of the slot entrance formed in part 3A, of a wire 2 introduced into this eye and this up to a extreme position of core of wire between the parallel edges 3A1 of the slot and as far as possible from the slot inlet.

Les deux extrémités 7A et 7B du ressort de pièce guide sont reliées entre elles par une partie intermédiaire de courbure déterminée ici supposée composée d'une suite d'éléments arqués déterminés de manière connue de l'homme de métier pour que le ressort présente des caractéristiques élastiques déterminées qui sont fonction de la nature du matériau constituant ce ressort des traitements éventuellement appliqués à ce matériau et de la forme choisie pour le ressort.The two ends 7A and 7B of the guide piece spring are interconnected by an intermediate part of curvature determined here assumed to be composed of a series of arcuate elements determined in a manner known to those skilled in the art for that the spring has determined elastic characteristics which are depending on the nature of the material constituting this spring of the treatments possibly applied to this material and the shape chosen for the spring.

Dans l'exemple présenté, il est ainsi prévu que le ressort comporte trois zones présentant des courbures alternées de l'une à la suivante, de manière qu'une première de ces zones qui fait suite à la partie d'extrémité 7B permette au ressort de venir partiellement entourer un renflement d'allure cylindrique 11B du relief de positionnement 11 qui constitue pratiquement un axe de rotation par rapport auquel se déplace la portion de ressort comportant la partie 7A où se trouve le chas 8 dont le déplacement est recherché. La seconde zone dont la courbure est inverse de celle de la première zone évoquée ci-dessus coopère avec la troisième zone dont la courbure est de même sens que celle de la première zone pour permettre des déplacements de l'extrémité 7A et du chas 8, ou au moins du bord le plus extrême de ce chas, le long de la fente que comporte la partie 3A dans un déplacement au moins à peu près parallèle à cette partie 3A.In the example presented, it is thus expected that the spring has three zones with alternating curvatures from one to the next, so that a first of these zones which follows the end portion 7B allows the spring to partially surround a bulge of cylindrical appearance 11B in relief positioning 11 which constitutes practically an axis of rotation relative to which moves the spring portion comprising the part 7A where the eye 8 whose displacement is sought. The second area whose curvature is opposite to that of the first zone mentioned above cooperates with the third zone whose curvature is the same direction as that of the first zone for allow movement of the end 7A and the eye 8, or at least the edge the most extreme of this eye, along the slit which comprises part 3A in a displacement at least roughly parallel to this part 3A.

L'extrémité 7A est ici supposée élastiquement ramenée vers sa position extrême où le chas 8 est en position au-dessus de la zone de maintien délimitée par les bords parallèles 3A1. Une pression externe, exercée par exemple de manière connue de l'homme de métier à l'aide d'une tige d'outil supposée pénétrant dans le boítier où est logé notamment le ressort pour appuyer sur la troisième zone courbe de ce ressort de manière à la pousser vers la pièce de connexion 3, entraíne le déplacement de l'extrémité 7A jusqu'à ce que le chas 8 soit au delà de l'entrée de la fente que comporte la partie 3A.The end 7A is here assumed to be resiliently brought back to its extreme position where the eye 8 is in position above the holding zone delimited by the parallel edges 3A1. External pressure, for example exerted known to those skilled in the art using a tool rod supposed to penetrate the housing in which is housed in particular the spring to press on the third zone curve of this spring so as to push it towards the connection piece 3, causes the end 7A to move until the eye 8 is beyond the entrance to the slot in part 3A.

Il est alors possible d'introduire un fil 2 dans ce chas et devant l'entrée de fente constituée par les lèvres 3A2.It is then possible to introduce a wire 2 in this eye and in front of the slot entry formed by the lips 3A2.

Dans la réalisation envisagée, le relâchement de la pression externe autorise le retour de l'extrémité 7A par effet ressort et entraíne l'insertion de l'âme 4 du fil 2 dans la gaine où cette âme atteint soit la position la plus extrême de maintien pour laquelle le ressort est élastiquement revenu en sa position d'équilibre naturelle, soit en appui contre un autre fil préalablement inséré dans la même fente, le ressort restant alors partiellement contraint.In the envisaged embodiment, the relaxation of the external pressure allows the return from the end 7A by spring effect and causes the insertion of the core 4 of the wire 2 in the sheath where this core reaches either the most extreme position of maintenance for which the spring has elastically returned to its equilibrium position natural, either by pressing against another wire previously inserted in the same slot, the spring then remaining partially constrained.

Comme indiqué plus haut, il est éventuellement possible d'utiliser le déplacement en sens inverse de l'extrémité 7B pour extraire un fil de la fente où il est coincé, si la longueur du chas 8 est prévue limitée à cet effet dans la variante de réalisation alors envisagée.As indicated above, it is possibly possible to use displacement in the opposite direction from the end 7B to extract a wire from the slot where it is stuck, if the length of the eye 8 is provided limited for this purpose in the variant of realization then envisaged.

Les figures 5 à 8 sont relatives à une variante de réalisation mettant en oeuvre une pièce de connexion différente de la précédente. Les éléments matériels de cette réalisation qui sont susceptibles d'être identiques ou similaires à ceux figurant dans la réalisation précédemment décrite conservent ici les mêmes références.Figures 5 to 8 relate to an alternative embodiment using a different connection piece from the previous one. The material elements of this achievement which are likely to be identical or similar to those appearing in the previously described embodiment here retain the same references.

L'agencement de connexion 1' présenté sur les figures 5 et 6 est destiné à permettre la connexion électrique d'au moins un fil électrique 2 externe à une pièce de connexion 3' pour relier ce fil à une partie d'un appareillage électrique non représenté. Dans cette variante de réalisation, la pièce de connexion 3' qui comporte une fente de maintien d'âme(s) de fil dotée d'une entrée de dénudage de gaine de fil ayant au moins approximativement même fonction que la fente de la pièce de connexion 3 évoquée plus haut.The connection arrangement 1 'shown in Figures 5 and 6 is intended to allow the electrical connection of at least one external electrical wire 2 to a connection piece 3 'for connecting this wire to part of an electrical appliance not shown. In this alternative embodiment, the connecting piece 3 'which has a wire core (s) holding slot with a stripping entry of wire sheath having at least approximately the same function as the slot in the connecting piece 3 mentioned above.

Cette pièce de connexion 3' est par exemple du type de celle décrite dans le document EP-A-0265321, elle est susceptible d'être obtenue par découpe et pliage et amincissement local à partir d'un flan métallique plan et présente une partie profilée 3'P dont une face se prolonge par une partie 3'B, de type barrette, qui n'est qu'esquissée sur les figures 5 et 6.This connection piece 3 'is for example of the type described in the document EP-A-0265321, it can be obtained by cutting and local folding and thinning from a flat metal blank and has a 3'P profiled part, one face of which is extended by a 3'B part, of strip type, which is only sketched in Figures 5 and 6.

Cette partie formant barrette 3'B est destinée à assurer une liaison électrique de la pièce de connexion 3' avec une partie d'un appareillage électrique non représenté, comme usuel en la matière.This portion forming a bar 3'B is intended to provide an electrical connection of the connecting piece 3 'with part of an electrical apparatus, not shown, as usual in the matter.

La partie profilée 3'P a par exemple une section transversale polygonale creuse qui se présente ici comme un U dont les extrémités libres ont été obliquement et également repliées l'une vers l'autre, comme le montre la figure 6. Ces pliages entraínent la formation de deux plis longitudinaux d'extrémité 3'PA ayant des bords 3'PA1 parallèles qui définissent la zone de maintien d'âme (s) de fil(s) de la fente de maintien et de dénudage dont est dotée la partie profilée 3'P de pièce de connexion qui comporte ces plis et ces bords.The profiled part 3'P has for example a hollow polygonal cross section which appears here as a U whose free ends have been obliquely and also folded towards each other, as shown in Figure 6. These folds result in the formation of two 3'PA longitudinal end folds having parallel 3'PA1 edges which define the wire core (s) holding area of the holding and stripping slot with the 3'P profiled part of the workpiece connection which has these folds and edges.

Deux parois parallèles de la partie profilée 3'P unissent chacun des plis 3'PA à une même partie commune qui se prolonge par la partie formant barrette 3'B dans l'exemple de réalisation proposé.Two parallel walls of the 3'P profiled part each unite the 3'PA folds to the same common part which is extended by the bar-forming part 3'B in the proposed embodiment.

Les deux bords parallèles de la fente que les plis 3'PA forment par rapprochement sont dotés de lèvres de dénudage de gaine de fil 3'PA2 obtenues par exemple par découpe oblique et symétrique puis éventuellement usinage amincissant des plis à une même des deux extrémités de la partie profilée 3'P qui les comporte, cette partie profilée délimitant une cavité ici montre débouchante à ces deux extrémités. L'autre extrémité de la partie profilée 3'P est ici destinée à servir de paroi d'appui à une extrémité 7B d'un ressort de pièce guide 7 correspondant à celui évoqué en relation avec les figures 1 à 4 et ici supposé en boucle comme précédemment.The two parallel edges of the slot that the 3'PA folds form by approximation are fitted with 3'PA2 wire sheath stripping lips obtained for example by oblique and symmetrical cutting then possibly machining thinning folds at the same of the two ends of the 3'P profiled part which includes them, this profiled part delimiting a cavity here shows emerging at these two ends. The other end of the 3'P profiled part is here intended for serve as a support wall at one end 7B of a guide piece spring 7 corresponding to that mentioned in connection with FIGS. 1 to 4 and here assumed in loop as before.

Dans la forme de réalisation envisagée, l'extrémité 7B est plane et vient au moins partiellement fermer la cavité définie par la partie profilée 3'P à l'extrémité de cette partie où elle vient s'appuyer en bout sur les parois qui ceinturent la cavité.In the envisaged embodiment, the end 7B is planar and comes at least partially close the cavity defined by the 3'P profiled part at the end of this part where it comes to rest at the end on the walls which surround the cavity.

La pièce de connexion 3' est supposée immobilisée entre des reliefs d'un boítier du module d'appareillage électrique qui comporte l'agencement de connexion dont fait partie cette pièce. Les moyens nécessaires à cette immobilisation ne sont pas décrits ici dans la mesure où ils sont bien connus de l'homme de métier et où d'autre part ils n'ont qu'un rapport indirect avec l'objet de la présente invention.The connecting piece 3 'is assumed to be immobilized between reliefs of a housing of the electrical switchgear module which includes the connection arrangement which this piece is part of. The means necessary for this immobilization are not not described here to the extent that they are well known to those skilled in the art and where on the other hand they have only an indirect relationship with the object of the present invention.

Le ressort de pièce guide 7 est positionné de manière déterminée par rapport à la pièce de connexion 3' avec laquelle il coopère dans un agencement de connexion.The guide piece spring 7 is positioned in a determined manner with respect to the connection piece 3 'with which it cooperates in a connection arrangement.

Comme dans l'exemple précédemment présenté, il est encore supposé ici que ce positionnement implique un relief de positionnement 11 du boítier où sont logés la pièce de connexion 3' et le ressort de pièce guide 7 associé à cette pièce. La forme du relief 11 est réalisée comme précédemment pour permettre au ressort de travailler dans un espace où il est confiné, cette espace étant par exemple prévu entre la paroi 6 et une paroi formant couvercle analogue à celle évoquée dans la partie de texte descriptif relatif à la réalisation sommairement présentée sur les figures 1 à 4.As in the example previously presented, it is still assumed here that this positioning implies a positioning relief 11 of the housing where are housed the connecting piece 3 'and the guide piece spring 7 associated with this piece. The shape of the relief 11 is produced as previously to allow the spring to work in a space where it is confined, this space being for example provided between the wall 6 and a wall forming a cover similar to that mentioned in the part of descriptive text relating to the summary performance presented on the Figures 1 to 4.

L'appui du ressort de pièce guide 7 en extrémité de partie profilée 3'P par une extrémité plane 7B est ici montré réalisé par appui direct de cette extrémité plane contre la partie profilée 3'P. Comme déjà indiqué précédemment, cet appui peut aussi être réalisé de manière indirecte si un élément matériel, telle une paroi de boítier, non représentée ici, est intercalée entre l'extrémité 7B du ressort de pièce guide et l'extrémité de partie profilée où ladite extrémité de ressort vient en appui..The support of the guide part spring 7 at the end of the profiled part 3'P by a flat end 7B is here shown produced by direct support of this flat end against the profiled part 3'P. As already indicated above, this support can also be done indirectly if a material element, such as a case, not shown here, is interposed between the end 7B of the workpiece spring guide and the end of the profiled part where said spring end comes in support..

Comme dans la réalisation évoquée plus haut, l'autre extrémité de ressort 7A est ici supposée plane et munie d'un chas 8 présentant au moins approximativement les mêmes caractéristiques que le chas évoqué précédemment.As in the embodiment mentioned above, the other end of spring 7A is here assumed to be flat and provided with an eye 8 having at least approximately the same characteristics as the eye mentioned above.

En particulier, il est prévu que l'extrémité 7A du ressort de pièce guide où se trouve le chas 8 puisse se déplacer le long de la fente de la partie profilée 3'P de la pièce 3' entre deux positions, l'une de ces positions permettant l'introduction d'un fil 2 dans ce chas 8 en position appropriée d'insertion en avant de l'entrée de fente constituée par les lèvres 3'PA2, l'autre étant la position la plus extrême de maintien d'un fil par coincement de l'âme de ce fil entre les bords parallèles 3'PAlde la fente de la partie profilée 3'P. Comme indiqué plus haut en relation avec la réalisation présentée sur les figures 1 à 4, le chas 8 peut être prévu pour un ou plusieurs fils alignésIn particular, provision is made for the end 7A of the guide part spring where finds eye 8 can move along the slot of the profiled part 3'P of the part 3 'between two positions, one of these positions allowing the introduction a wire 2 in this eye 8 in the appropriate insertion position in front of the entry of slot formed by the lips 3'PA2, the other being the most extreme position of holding a wire by wedging the core of this wire between the parallel edges 3'PAlde the slot of the profiled part 3'P. As indicated above in relation with the embodiment shown in Figures 1 to 4, the eye 8 can be provided for one or more aligned wires

Les détails déjà donnés de réalisation et de fonctionnement communs aux deux variantes de réalisation présentées ne seront pas repris à nouveau dans la mesure où ce la n'est manifestement pas indispensable.Details already given of construction and operation common to both variant embodiments presented will not be repeated again to the extent where it is obviously not essential.

Il doit bien entendu être compris que l'agencement selon l'invention est susceptible d'être mis en oeuvre dans un grand nombre d'applications où il est nécessaire de raccorder un ou des fils électriques à un appareillage logé au moins en partie dans un boítier constituant éventuellement un module unique dans le cas d'un appareil indépendant, mais aussi alternativement susceptible d'être combiné à au moins un autre module, par exemple identique, similaire et/ou compatible, comme par exemple un module de type bloc de jonction ou unité de connecteur. Ces modules eux-mêmes n'ont pas été détaillés ici dans la mesure où d'une part ils peuvent être de formes diverses et variées et où d'autre part les documents cités dans la présente description constituent des exemples de tels modules.It should of course be understood that the arrangement according to the invention is likely to be implemented in a large number of applications where it is necessary to connect one or more electrical wires to a device housed at least partly in a case possibly constituting a single module in the case of an independent device, but also alternatively likely to be combined with at least one other module, for example identical, similar and / or compatible, such as a terminal block or module type connector. These modules themselves have not been detailed here since on the one hand they can be of various and varied forms and where on the other hand documents cited in the present description constitute examples of such modules.

Claims (9)

  1. Connection arrangement for a conductive wire/wires, comprising at least one conductive connection part (3, 3') with a retention slot/slots for an electric wire/wires (2) and at least one guide part (7), a first end (7A) of which, which comprises at least one guiding eye (8) for at least one electric wire, can be displaced along a slot for retention of the conductive connection part (3), between two positions, by external action and/or by spring effect, the eye (8), and optionally an electric wire, being situated beyond an intake of the said retention slot, for one of the positions, which in this case is known as the position of insertion, in which it is possible to place a wire which passes through the eye, in front of the said intake of the retention slot, in a position suitable for insertion of this wire between the edges of this slot, the eye, and optionally an electric wire inserted in this eye (8), being situated at the level of an area for retention of the wire, which is constituted by the edges of the slot for the other position, after the wire in question has been led from the position of insertion to the said other position, by the displacement of the first end of the guide part comprising the eye (8), along the slot, characterised in that the guide part (7) is a spring of the type in the form of a loop, which assures resiliently the return to the position of retention of wire of the first end which supports the eye (8), in displacement along the slot.
  2. Arrangement according to claim 1, characterised in that the guide part is constituted by a spring in the form of a loop, the two ends of which are flat in practice and at least approximately mutually perpendicular, the first (7A) of these ends, which contains at least one guiding eye (8), projecting beyond the second end (7B), which is supported, directly or indirectly, on the connection part (3 or 3') where there is situated the slot, along which the said first end (7A) is displaced.
  3. Arrangement according to claim 1 or claim 2, characterised in that the eye (8) of the guide part (7) has a length which is greater than that of the area of retention of wire constituted by the edges (3A1 or 3'PA1) of the slot, and it is disposed such that the edge of the eye (8) which is furthest away comes at least as far as the end of the area of retention of wire which is situated near to the intake of the said slot, when the first end of guide part, where this eye (8) is located, is displaced resiliently to a limited extent by spring effect.
  4. Arrangement according to any one of claims 1 to 3, characterised in that the guide part (7) cooperates with the connection part (3) which has a slot provided in a flat part (3A) of a conductive bar, comprising a fold, beyond which the said guide part is supported by the second end (7B).
  5. Arrangement according to any one of claims 1 to 3, characterised in that the guide part (7) cooperates with the connection part (3') comprising a slot provided in a profiled part (3'P), the transverse cross-section of which, which is perpendicular to the first end, has a hollow polygonal form, at an opening end of which the said guide part is supported by the second end (7B).
  6. Arrangement according to claim 4, characterised in that the guide part (7) cooperates with the connection part (3), which has a slot provided in a flat part (3A) of a conductive bar comprising a fold, beyond which the said guide part is placed by the second flat end (7B), where the latter is inserted in the assembly, between this bar and at least one element (11) for positioning of a spring in the form of a loop, of a case where the arrangement is accommodated.
  7. Arrangement according to claim 5, characterised in that the second end (7B) is flat, and is inserted in the assembly between this profiled part (3'P) and at least one positioning element (11) for the spring in the form of a loop, of a case where the arrangement is accommodated.
  8. Arrangement according to any one of claims 1 to 7, characterised in that the edges of the slot of the connection part (3, 3') are shaped such as to delimit an intake of wire, which has lips (3A2 or 3'PA2), to cut the sheath of the wire.
  9. Module, in particular for connection, characterised in that it comprises a case containing an arrangement according to any one of claims 1 to 8.
EP98400316A 1997-03-28 1998-02-11 Electric connector arrangement and module, in particular connection module comprising such a connector arragement Expired - Lifetime EP0867973B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9703853 1997-03-28
FR9703853A FR2761534B1 (en) 1997-03-28 1997-03-28 ELECTRICAL CONNECTION ARRANGEMENT AND MODULE, IN PARTICULAR FOR CONNECTION, COMPRISING SUCH AN ARRANGEMENT

Publications (2)

Publication Number Publication Date
EP0867973A1 EP0867973A1 (en) 1998-09-30
EP0867973B1 true EP0867973B1 (en) 2002-06-12

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Application Number Title Priority Date Filing Date
EP98400316A Expired - Lifetime EP0867973B1 (en) 1997-03-28 1998-02-11 Electric connector arrangement and module, in particular connection module comprising such a connector arragement

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US (1) US5993244A (en)
EP (1) EP0867973B1 (en)
JP (1) JPH10284144A (en)
BR (1) BR9801136B1 (en)
DE (1) DE69805901T2 (en)
ES (1) ES2178120T3 (en)
FR (1) FR2761534B1 (en)

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Publication number Publication date
BR9801136B1 (en) 2009-05-05
ES2178120T3 (en) 2002-12-16
FR2761534B1 (en) 1999-05-28
DE69805901T2 (en) 2002-09-26
EP0867973A1 (en) 1998-09-30
BR9801136A (en) 1999-10-19
US5993244A (en) 1999-11-30
FR2761534A1 (en) 1998-10-02
DE69805901D1 (en) 2002-07-18
JPH10284144A (en) 1998-10-23

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