EP0893846A1 - Electrical apparatus having a fixed contact carrier and a connecting terminal - Google Patents

Electrical apparatus having a fixed contact carrier and a connecting terminal Download PDF

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Publication number
EP0893846A1
EP0893846A1 EP98401725A EP98401725A EP0893846A1 EP 0893846 A1 EP0893846 A1 EP 0893846A1 EP 98401725 A EP98401725 A EP 98401725A EP 98401725 A EP98401725 A EP 98401725A EP 0893846 A1 EP0893846 A1 EP 0893846A1
Authority
EP
European Patent Office
Prior art keywords
connection
cage
fixed contact
cable
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98401725A
Other languages
German (de)
French (fr)
Other versions
EP0893846B1 (en
Inventor
Michel Gorlier
Vincent Parniere
Christophe Fontaine
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 Control SA
Original Assignee
ABB Control SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABB Control SA filed Critical ABB Control SA
Publication of EP0893846A1 publication Critical patent/EP0893846A1/en
Application granted granted Critical
Publication of EP0893846B1 publication Critical patent/EP0893846B1/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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member

Definitions

  • the present invention relates generally to an apparatus electric carrying a connection terminal intended to be tightened around a fixed contact support of said device to perform the connection between external electrical conductors and the device electric.
  • Electrical devices for example electrical contactors, have a fixed contact support protruding outwards from their housing and electrically connected to the circuit they contain, this support is intended to ensure the connection of external electrical cables with the internal circuit of the device.
  • a connection terminal implemented with the device ensures the electrical connection of at least one cable to the fixed contact support.
  • connection terminals usually used allow making one or two electrical connections.
  • Such bollards include a cage intended to be placed around fixed contact support and a clamping screw passing through a wall of said cage to cause it to move axially in a direction parallel to said clamping screw.
  • the lower portion of the cage is brought closer to the lower end of the clamping screw so as to pinch the fixed contact support between the cage and the clamping screw.
  • Space between the fixed contact support and the cage creates a zone of connection into which the stripped end can be inserted a cable.
  • Some terminals also include an axially driven stirrup relative to the cage when tightening the tightening screw. Such terminals are arranged on the contactor so as to pinch the fixed contact support between the underside of the stirrup and the face bottom of the cage.
  • Such clamp terminals can provide a single connection located in the connection area formed between the bracket and the support fixed contact.
  • connection zones in which can be inserted electrical cables. It is thus possible to connect electrically one or two cables, arranged in one and / or the other connection area, to the circuit connected to the fixed contact support.
  • connection terminals In these connection terminals, the clamping screw does not pass through the or the connection areas which makes it impossible to work of mechanical means usually used to make the "captive" connection, closed terminal (eyelet) or semi-closed terminal (fork) mounted on the end of the cable to be connected.
  • Called captive connection a connection made up of in such a way that the cable cannot extract itself from the area connection when it comes to be loose.
  • lockable connection a connection for which it is necessary to use a tool to extract the cable after removing both sides of the connection area.
  • the object of the present invention is to provide an electrical device provided with a connection terminal allowing the realization of at minus a captive connection.
  • the invention provides an electrical device, such as a contactor, carrying a fixed contact support protruding outside of its housing and a connection terminal of the type comprising a cage through which a clamping screw passes, said fixed contact support and said terminal comprising contact surfaces intended to establish an electrical contact with one or more external cables, characterized in what he wears a piece to create a zone of additional connection located between a contact surface and the part, said connection zone being constituted so as to hold the cable captive.
  • a contactor carrying a fixed contact support protruding outside of its housing and a connection terminal of the type comprising a cage through which a clamping screw passes, said fixed contact support and said terminal comprising contact surfaces intended to establish an electrical contact with one or more external cables, characterized in what he wears a piece to create a zone of additional connection located between a contact surface and the part, said connection zone being constituted so as to hold the cable captive.
  • the housing of the electrical appliance such as a contactor, is not shown, only the fixed contact support and the connection terminal are shown.
  • connection terminal shown in Figure 1 is for the realization of a single connection, it consists of a screw clamping 1 and a cage 3.
  • the cage 3 has four walls arranged perpendicularly to the together to form a rectangular opening ring. It is usually manufactured by folding a metal strip, the flat upper wall 31 consisting of two portions of overlapping strip.
  • the clamping screw 1 is engaged with the internal thread of a tapped opening formed in the top wall of the cage so that said cage is driven axially in translation relative to the clamping screw during the rotation of said screw.
  • this terminal is, as shown in drawing, arranged around the fixed contact support 4 in such a way that it is disposed between the lower end of the screw tightening 1 and the bottom wall of the cage 3.
  • the screw is screwed clamping 1, while its lower end bears against the fixed contact support 4, the cage 3 is moved axially towards the high until it is against the underside of the support fixed contact 4.
  • connection zone 43 The space arranged between the fixed contact support 4 and the wall bottom of the cage 3 constitutes a connection zone 43 in which can be inserted an electric cable.
  • FIG. 2 shows a connection terminal according to another embodiment, which comprises, in addition to the clamping screw 1 and the cage 3, a bracket 2 mounted by its upper end on the head of the screw clamp 1. In such a terminal, the cage 3 is mounted so fixed.
  • connection zone 42 is formed between the lower end of the bracket 2 and the fixed contact support.
  • connection terminals shown in Figures 3 to 5 are terminals with independent double connection, they are also consisting of a clamping screw 1, a U-shaped bracket 2 and a cage 3.
  • the bracket 2 is mounted on the clamping screw 1 by positioning the upper end of it on the head of the clamping screw 1 and its lower end at near the lower end of said screw 1, inside the cage 3.
  • the stirrup 2 can thus slide axially with respect to said clamping screw for the amount of mounting clearance.
  • the terminal When the terminal is used to electrically connect one or more cable (s) to the electrical circuit of an electrical appliance (not shown in the drawing), for example an electrical contactor, terminated by a fixed contact support 4, it is positioned so that said fixed contact support 4 passes through the cage, and that the support of contact either inside the cage, between the lower end of the stirrup 2 and the lower end of the cage 3, being parallel to the ends opposite said stirrup and cage.
  • an electrical appliance not shown in the drawing
  • Bulges 41 arranged on either side of the contact zone 44 of the fixed contact support 4 are positioned against the edges external of the vertical sides 30 of the cage 3, only one of which is visible in the drawings.
  • the double connection terminal is made integral with the fixed contact support 4, while being able slide vertically with respect to it, being guided by the side faces of the cage.
  • connection zones 42 and 43 are arranged respectively between the fixed contact support 4 and the end bottom of the bracket 2 and between said fixed contact support 4 and the bottom wall of the cage 3. These two connection zones allow the positioning of cables intended to be connected electrically to the fixed contact support 4.
  • the device comprising the fixed contact support 4 and a connection terminal is provided with a part 6, which can be called a waterproofing piece, mounted in one of the zones of connection of the terminal so as to create a additional and captive connection.
  • said part 6 is positioned on the fixed contact support 4.
  • said part 6 is positioned on the lower end of the bracket 2.
  • said part 6 is arranged under a surface of contact.
  • the part 6 consists of a flat face 60, rectangular in the example shown, connected to two faces side 61 finished, on their edge opposite the flat face 60, by returns 62 folded in the direction of one another.
  • the lateral faces 61 are such that their edges are connected to the flat face 60 and returns 62 are not parallel to each other. By this arrangement, the flat face 60 forms an acute angle with the plane containing the returns 62. These lateral faces 61 are by trapezoidal example.
  • This dihedral thus formed allows the user to easily insert the end of the cable, provided in a manner known per se with a ferrule 51, between part 6 and the stirrup 2.
  • the tip 51 is a flat tip.
  • the cable is inserted until the free end of the flat tip 51 protrudes the end of part 6 opposite the cable insertion side.
  • the lateral faces 61 of the part 6 are, on the closed side of the dihedral, of just high enough to allow the end of the cable with cable end 51.
  • the part 6 pivots while being pushed by the fixed contact support 4 during the approximation of the stirrup 2 and of the fixed contact support 4, while being held laterally at the during this movement through the side walls of the cage 3.
  • the part 6 is, at the end of tightening, positioned with its flat face 60 parallel to the surfaces facing the stirrup and the fixed contact support. Said flat face 60 is then supported by its entire surface with the flat end 51 of the cable while the returns 62 extend to distance from the lower end of the stirrup 2, obliquely by compared to it.
  • the establishment of the piece of impermeability 6 creates a zone additional captive connection while retaining the or the connection areas initially contained in the terminal.
  • part 6 The assembly and use of part 6 are of course similar when the part 6 is mounted on the fixed contact support 4 as in Figure 1.
  • said part is elastic and deforms during tightening of the terminal to secure the cable.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

The mechanism has a square holder section (3) with an electrical connector plate (4) from the apparatus directly attached. There is an internally held cable holder (6) and upper tightening screw (1) together with a side plate which is attached to the screw and clamps into place on the cable.

Description

La présente invention concerne d'une manière générale un appareil électrique portant une borne de raccordement destinée à être serrée autour d'un support de contact fixe dudit appareil pour effectuer la liaison entre des conducteurs électriques externes et l'appareil électrique.The present invention relates generally to an apparatus electric carrying a connection terminal intended to be tightened around a fixed contact support of said device to perform the connection between external electrical conductors and the device electric.

Les appareils électriques, par exemple les contacteurs électriques, portent un support de contact fixe dépassant vers l'extérieur de leur boítier et relié électriquement au circuit qu'ils renferment, ce support est destiné à assurer la liaison des câbles électriques externes avec le circuit interne de l'appareil.Electrical devices, for example electrical contactors, have a fixed contact support protruding outwards from their housing and electrically connected to the circuit they contain, this support is intended to ensure the connection of external electrical cables with the internal circuit of the device.

Une borne de raccordement mise en oeuvre avec l'appareil assure la jonction électrique d'au moins un câble au support de contact fixe.A connection terminal implemented with the device ensures the electrical connection of at least one cable to the fixed contact support.

Les bornes de raccordement usuellement mises en oeuvre permettent la réalisation de un ou deux raccordements électriques.The connection terminals usually used allow making one or two electrical connections.

De telles bornes comportent une cage destinée à être disposée autour du support de contact fixe et une vis de serrage traversant une paroi de ladite cage pour l'entraíner en déplacement axial dans une direction parrallèle à ladite vis de serrage. Lors du vissage de la vis de serrage de la borne, la portion inférieure de la cage est rapprochée de l'extrémité inférieure de la vis de serrage de manière à pincer le support de contact fixe entre la cage et la vis de serrage. L'espace compris entre le support de contact fixe et la cage crée une zone de raccordement dans laquelle peut être insérée l'extrémité dénudée d'un câble.Such bollards include a cage intended to be placed around fixed contact support and a clamping screw passing through a wall of said cage to cause it to move axially in a direction parallel to said clamping screw. When screwing in the screw tightening of the terminal, the lower portion of the cage is brought closer to the lower end of the clamping screw so as to pinch the fixed contact support between the cage and the clamping screw. Space between the fixed contact support and the cage creates a zone of connection into which the stripped end can be inserted a cable.

Certaines bornes comportent en outre un étrier entraíné axialement par rapport à la cage lors du vissage de la vis de serrage. De telles bornes sont disposées sur le contacteur de manière à pincer le support de contact fixe entre la face inférieure de l'étrier et la face inférieure de la cage.Some terminals also include an axially driven stirrup relative to the cage when tightening the tightening screw. Such terminals are arranged on the contactor so as to pinch the fixed contact support between the underside of the stirrup and the face bottom of the cage.

De telles bornes à étrier peuvent assurer un seul raccordement situé dans la zone de raccordement formée entre l'étrier et le support de contact fixe.Such clamp terminals can provide a single connection located in the connection area formed between the bracket and the support fixed contact.

Elles peuvent également être constituées de manière telle que les espaces situés de part et d'autre du support de contact fixe, entre celui-ci et la cage d'une part, entre celui-ci et l'étrier d'autre part, forment des zones de raccordement dans lesquelles peuvent être insérés des câbles électriques. Il est ainsi possible de raccorder électriquement un ou deux câbles, disposés dans l'une et/ou l'autre zone de raccordement, au circuit raccordé au support de contact fixe.They can also be set up in such a way that the spaces on either side of the fixed contact support, between this one and the cage on the one hand, between this one and the stirrup on the other hand, form connection zones in which can be inserted electrical cables. It is thus possible to connect electrically one or two cables, arranged in one and / or the other connection area, to the circuit connected to the fixed contact support.

Dans ces bornes de raccordement, la vis de serrage ne traverse pas la ou les zones de raccordement ce qui rend impossible la mise en oeuvre de moyens mécaniques usuellement utilisés pour rendre le raccordement "imperdable", cosse fermée (à oeillet) ou cosse semi-fermée (à fourche) montée sur l'extrémité du câble à raccorder.In these connection terminals, the clamping screw does not pass through the or the connection areas which makes it impossible to work of mechanical means usually used to make the "captive" connection, closed terminal (eyelet) or semi-closed terminal (fork) mounted on the end of the cable to be connected.

On appelle raccordement imperdable, une connexion constituée de manière telle que le câble ne puisse s'extraire de lui-même de la zone de raccordement lorsque celle-ci vient à être desserrée. On appelle raccordement verrouillable un raccordement pour lequel il est nécessaire d'utiliser un outil pour extraire le câble après avoir écarté les deux faces de la zone de raccordement.Called captive connection, a connection made up of in such a way that the cable cannot extract itself from the area connection when it comes to be loose. We call lockable connection a connection for which it is necessary to use a tool to extract the cable after removing both sides of the connection area.

De tels raccordements imperdables et/ou verrouillables sont utilisés lorsque la déconnexion d'un câble peut mettre en péril des personnes et/ou des biens, ou provoquer le dysfonctionnement de l'installation électrique dans laquelle il est monté. Ils sont par exemple spécialement justifiés dans les dispositions suivantes :

  • câble raccordé à un circuit principal pour le contrôle de la présence de la tension électrique,
  • dérivation d'un circuit principal pour l'auto-alimentation de la bobine d'un appareil,
  • insertion momentanée, à la fermeture des pôles principaux, de résistances pour l'amortissement des pointes de courant pouvant apparaítre sur le circuit principal,
  • livraison d'appareils précâblés avec bornes desserrées.
Such captive and / or lockable connections are used when the disconnection of a cable can endanger people and / or property, or cause the electrical installation in which it is mounted to malfunction. They are for example specially justified in the following provisions:
  • cable connected to a main circuit for checking the presence of electrical voltage,
  • derivation of a main circuit for the self-supply of the coil of a device,
  • momentary insertion, at the closing of the main poles, of resistors for damping current peaks which may appear on the main circuit,
  • delivery of pre-wired devices with loose terminals.

L'objet de la présente invention est de fournir un appareil électrique muni d'une borne de raccordement permettant la réalisation d'au moins un raccordement imperdable.The object of the present invention is to provide an electrical device provided with a connection terminal allowing the realization of at minus a captive connection.

A cet effet, l'invention propose un appareil électrique, tel qu'un contacteur, portant un support de contact fixe dépassant à l'extérieur de son boítier et une borne de raccordement du type comportant une cage traversée par une vis de serrage, ledit support de contact fixe et ladite borne comportant des surfaces de contact destinées à établir un contact électrique avec un ou des câbles externes, caractérisé en ce qu'il porte une pièce permettant de créer une zone de raccordement supplémentaire située entre une surface de contact et la pièce, ladite zone de raccordement étant constituée de manière à maintenir le câble de manière imperdable.To this end, the invention provides an electrical device, such as a contactor, carrying a fixed contact support protruding outside of its housing and a connection terminal of the type comprising a cage through which a clamping screw passes, said fixed contact support and said terminal comprising contact surfaces intended to establish an electrical contact with one or more external cables, characterized in what he wears a piece to create a zone of additional connection located between a contact surface and the part, said connection zone being constituted so as to hold the cable captive.

L'appareil selon l'invention est encore remarquable en ce que :

  • la pièce est positionnée sous une des surfaces de contacts,
  • la pièce est constituée d'une face plane reliée à deux faces latérales terminées, sur leur bord opposé à la face plane, par des retours repliés en direction l'un de l'autre,
  • les bords des faces latérales se raccordant à la face plane et aux retours ne sont pas parallèles l'un à l'autre, de telle façon que la face plane forme un angle aigu avec le plan renfermant les retours,
  • la pièce est accrochée à la surface de contact par la mise en place des retours sur le dessus de ladite surface de contact,
  • les faces latérales sont trapézoïdales,
  • la face plane de la pièce et la surface de contact forment entre elles un dièdre dont l'ouverture est dirigée du côté destiné à l'insertion du câble,
  • les faces latérales sont, du côté fermé du dièdre, de hauteur juste suffisante pour permettre le passage de l'extrémité du câble, de sorte que l'extrémité du câble est maintenue pincée dans la zone de raccordement même lorsque la borne est desserrée,
  • la pièce est susceptible d'être maintenue dans une position pour laquelle sa face plane est disposée contre la surface de contact par des moyens d'accrochage,
  • lorsque la borne de raccordement comporte un étrier dont l'extrémité supérieure est montée sur la tête de la vis de serrage et l'extrémité inférieure est à proximité de l'extrémité inférieure de la vis, à l'intérieur de la cage, la pièce est montée à l'intérieur de la cage, sous la face inférieure de l'étrier,
  • la pièce est positionnée sous le support de contact fixe.
The apparatus according to the invention is also remarkable in that:
  • the part is positioned under one of the contact surfaces,
  • the part consists of a flat face connected to two finished lateral faces, on their edge opposite to the flat face, by returns folded in the direction of one another,
  • the edges of the lateral faces connecting to the flat face and to the returns are not parallel to each other, so that the flat face forms an acute angle with the plane containing the returns,
  • the part is attached to the contact surface by the installation of the returns on the top of said contact surface,
  • the lateral faces are trapezoidal,
  • the flat face of the part and the contact surface form between them a dihedral, the opening of which is directed towards the side intended for the insertion of the cable,
  • the side faces are, on the closed side of the dihedral, of a height just sufficient to allow the passage of the end of the cable, so that the end of the cable is kept pinched in the connection area even when the terminal is loose,
  • the part is capable of being held in a position for which its planar face is disposed against the contact surface by attachment means,
  • when the connection terminal includes a bracket, the upper end of which is mounted on the head of the clamping screw and the lower end is near the lower end of the screw, inside the cage, the part is mounted inside the cage, under the underside of the bracket,
  • the part is positioned under the fixed contact support.

L'invention sera mieux comprise grâce à la description qui va suivre donnée à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • la figure 1 montre une borne de raccordement sans étrier à une zone de raccordement imperdable selon l'invention,
  • la figure 2 montre une borne de raccordement à étrier destinée à assurer un seul raccordement électrique, équipée suivant l'invention,
  • la figure 3 montre une borne à double raccordement indépendant selon l'invention avec un câble disposé dans la zone de raccordement imperdable,
  • la figure 4 montre la borne de la figure 1 assurant le raccordement de trois câbles,
  • la figure 5 montre une variante de réalisation de la borne selon l'invention.
The invention will be better understood thanks to the description which follows given by way of nonlimiting example with reference to the appended drawings in which:
  • FIG. 1 shows a connection terminal without stirrup to a captive connection zone according to the invention,
  • FIG. 2 shows a clamp connection terminal intended to ensure a single electrical connection, equipped according to the invention,
  • FIG. 3 shows a terminal with independent double connection according to the invention with a cable placed in the captive connection area,
  • FIG. 4 shows the terminal of FIG. 1 ensuring the connection of three cables,
  • Figure 5 shows an alternative embodiment of the terminal according to the invention.

Afin de ne pas surcharger inutilement les dessins, le boítier de l'appareil électrique, tel qu'un contacteur, n'est pas représenté, seuls le support de contact fixe et la borne de raccordement sont montrés.In order not to unnecessarily overload the drawings, the housing of the electrical appliance, such as a contactor, is not shown, only the fixed contact support and the connection terminal are shown.

La borne de raccordement représentée à la figure 1 est destinée à la réalisation d'un seul raccordement, elle est constituée d'une vis de serrage 1 et d'une cage 3.The connection terminal shown in Figure 1 is for the realization of a single connection, it consists of a screw clamping 1 and a cage 3.

La cage 3 comporte quatre parois disposées perpendiculairement les unes aux autres pour former un anneau d'ouverture rectangulaire. Elle est usuellement fabriquée par pliage d'une bande métallique, la paroi supérieure plane 31 étant constituée par deux portions de bande se recouvrant.The cage 3 has four walls arranged perpendicularly to the together to form a rectangular opening ring. It is usually manufactured by folding a metal strip, the flat upper wall 31 consisting of two portions of overlapping strip.

La vis de serrage 1 est en prise avec le filetage interne d'une ouverture taraudée formée dans la paroi supérieure de la cage afin que ladite cage soit entraínée axialement en translation par rapport à la vis de serrage lors de la rotation de ladite vis.The clamping screw 1 is engaged with the internal thread of a tapped opening formed in the top wall of the cage so that said cage is driven axially in translation relative to the clamping screw during the rotation of said screw.

Lors de sa mise en oeuvre, cette borne est, comme représenté au dessin, disposée autour du support de contact fixe 4 de manière telle que celui-ci soit disposé entre l'extrémité inférieure de la vis de serrage 1 et la paroi inférieure de la cage 3. Lorsque l'on visse la vis de serrage 1, tandis que son extrémité inférieure est en appui contre le support de contact fixe 4, la cage 3 est déplacée axialement vers le haut jusqu'à se trouver contre la face inférieure du support de contact fixe 4.When implemented, this terminal is, as shown in drawing, arranged around the fixed contact support 4 in such a way that it is disposed between the lower end of the screw tightening 1 and the bottom wall of the cage 3. When the screw is screwed clamping 1, while its lower end bears against the fixed contact support 4, the cage 3 is moved axially towards the high until it is against the underside of the support fixed contact 4.

L'espace disposé entre le support de contact fixe 4 et la paroi inférieure de la cage 3 constitue une zone de raccordement 43 dans laquelle peut être inséré un câble électrique.The space arranged between the fixed contact support 4 and the wall bottom of the cage 3 constitutes a connection zone 43 in which can be inserted an electric cable.

La figure 2 montre une borne de raccordement suivant une autre forme de réalisation, qui comporte, outre la vis de serrage 1 et la cage 3, un étrier 2 monté par son extrémité supérieure sur la tête de la vis de serrage 1. Dans une telle borne, la cage 3 est montée de manière fixe.Figure 2 shows a connection terminal according to another embodiment, which comprises, in addition to the clamping screw 1 and the cage 3, a bracket 2 mounted by its upper end on the head of the screw clamp 1. In such a terminal, the cage 3 is mounted so fixed.

Lorsqu'une borne selon cette forme de réalisation est montée autour d'un support de contact fixe 4 sortant du boítier (non représenté au dessin) d'un contacteur, une zone de raccordement 42 est formée entre l'extrémité inférieure de l'étrier 2 et le support de contact fixe.When a terminal according to this embodiment is mounted around a fixed contact support 4 exiting the housing (not shown in drawing) of a contactor, a connection zone 42 is formed between the lower end of the bracket 2 and the fixed contact support.

Lors du vissage de la vis de serrage 1, l'étrier 2 se déplace axialement jusqu'à ce que le support de contact fixe 4 soit pincé entre l'étrier 2 et la cage 3.When tightening the tightening screw 1, the stirrup 2 moves axially until the fixed contact support 4 is pinched between the bracket 2 and cage 3.

Les bornes de raccordement représentées sur les figures 3 à 5 sont des bornes à double raccordement indépendant, elles sont également constituées d'une vis de serrage 1, d'un étrier 2 en U et d'une cage 3.The connection terminals shown in Figures 3 to 5 are terminals with independent double connection, they are also consisting of a clamping screw 1, a U-shaped bracket 2 and a cage 3.

Comme dans la borne représentée sur la figure 2, l'étrier 2 est monté sur la vis de serrage 1 en positionnant l'extrémité supérieure de celui-ci sur la tête de la vis de serrage 1 et son extrémité inférieure à proximité de l'extrémité inférieure de ladite vis 1, à l'intérieur de la cage 3. L'étrier 2 peut ainsi coulisser axialement par rapport à ladite vis de serrage de la valeur du jeu de montage.As in the terminal shown in Figure 2, the bracket 2 is mounted on the clamping screw 1 by positioning the upper end of it on the head of the clamping screw 1 and its lower end at near the lower end of said screw 1, inside the cage 3. The stirrup 2 can thus slide axially with respect to said clamping screw for the amount of mounting clearance.

Dans les figures 3 à 5 annexés à la présente demande, une seule moitié de la cage 3 est dessinée afin de mieux représenter ce qui se situe à l'intérieur de ladite cage 3. Ladite cage 3 est pour ce faire coupée en deux suivant son plan vertical de symétrie.In Figures 3 to 5 appended to this application, only one half of cage 3 is drawn to better represent what is located inside said cage 3. Said cage 3 is to do this cut in half along its vertical plane of symmetry.

Lorsque la borne est utilisée pour raccorder électriquement un ou des câble(s) au circuit électrique d'un appareil électrique (non représenté au dessin), par exemple un contacteur électrique, terminé par un support de contact fixe 4, elle est positionnée de manière telle que ledit support de contact fixe 4 traverse la cage, et que le support de contact soit à l'intérieur de la cage, entre l'extrémité inférieure de l'étrier 2 et l'extrémité inférieure de la cage 3, en étant parallèle aux extrémités en vis-à-vis desdits étrier et cage. When the terminal is used to electrically connect one or more cable (s) to the electrical circuit of an electrical appliance (not shown in the drawing), for example an electrical contactor, terminated by a fixed contact support 4, it is positioned so that said fixed contact support 4 passes through the cage, and that the support of contact either inside the cage, between the lower end of the stirrup 2 and the lower end of the cage 3, being parallel to the ends opposite said stirrup and cage.

Des renflements 41 disposés de part et d'autre de la zone de contact 44 du support de contact fixe 4 sont positionnés contre les bordures externes des flancs verticaux 30 de la cage 3, dont un seul est visible sur les dessins. Par ce montage, la borne à double raccordement est rendue solidaire du support de contact fixe 4, tout en pouvant coulisser verticalement par rapport à celui-ci en étant guidée par les faces latérales de la cage.Bulges 41 arranged on either side of the contact zone 44 of the fixed contact support 4 are positioned against the edges external of the vertical sides 30 of the cage 3, only one of which is visible in the drawings. By this assembly, the double connection terminal is made integral with the fixed contact support 4, while being able slide vertically with respect to it, being guided by the side faces of the cage.

Cette disposition crée deux zones de raccordement 42 et 43 disposées respectivement entre le support de contact fixe 4 et l'extrémité inférieure de l'étrier 2 et entre ledit support de contact fixe 4 et la paroi inférieure de la cage 3. Ces deux zones de raccordement permettent le positionnement de câbles destinés à être reliés électriquement au support de contact fixe 4.This arrangement creates two connection zones 42 and 43 arranged respectively between the fixed contact support 4 and the end bottom of the bracket 2 and between said fixed contact support 4 and the bottom wall of the cage 3. These two connection zones allow the positioning of cables intended to be connected electrically to the fixed contact support 4.

Pour effectuer le raccordement électrique, l'on visse la vis de serrage 1.To make the electrical connection, the tightening screw is screwed 1.

Lors de ce serrage, la cage 3 est entraínée vers le haut, en direction du support de contact fixe 4 et de l'étrier 2. Ce déplacement de la cage 3 plaque dans un premier temps le câble disposé dans la zone de raccordement 43 contre le support de contact fixe 4, et dans un deuxième temps le câble introduit dans la zone de raccordement 42 contre l'étrier 2. La poursuite du vissage permet de serrer le montage et d'assurer la connexion électrique des câbles au support de contact fixe 4.During this tightening, the cage 3 is driven upwards, in the direction of the fixed contact support 4 and of the stirrup 2. This displacement of the cage 3 initially plates the cable placed in the area 43 against the fixed contact support 4, and in a second time the cable introduced into connection area 42 against caliper 2. Continued screwing tightens the assembly and ensure the electrical connection of the cables to the contact support fixed 4.

Suivant l'invention, l'appareil comportant le support de contact fixe 4 et une borne de raccordement est muni d'une pièce 6, pouvant être appelée pièce d'imperdabilité, montée dans l'une des zones de raccordement de la borne de manière à créer une zone de raccordement supplémentaire et imperdable.According to the invention, the device comprising the fixed contact support 4 and a connection terminal is provided with a part 6, which can be called a waterproofing piece, mounted in one of the zones of connection of the terminal so as to create a additional and captive connection.

Dans l'exemple de mise en oeuvre représenté à la figure 1, ladite pièce 6 est positionnée sur le support de contact fixe 4. In the example of implementation shown in Figure 1, said part 6 is positioned on the fixed contact support 4.

Dans l'exemple de mise en oeuvre représenté aux figures 2 à 5, ladite pièce 6 est positionnée sur l'extrémité inférieure de l'étrier 2.In the example of implementation shown in Figures 2 to 5, said part 6 is positioned on the lower end of the bracket 2.

D'une manière générale, ladite pièce 6 est disposée sous une surface de contact.In general, said part 6 is arranged under a surface of contact.

Comme visible au dessin, la pièce 6 est constituée d'une face plane 60, rectangulaire dans l'exemple représenté, reliée à deux faces latérales 61 terminées, sur leur bord opposé à la face plane 60, par des retours 62 repliés en direction l'un de l'autre.As visible in the drawing, the part 6 consists of a flat face 60, rectangular in the example shown, connected to two faces side 61 finished, on their edge opposite the flat face 60, by returns 62 folded in the direction of one another.

Les faces latérales 61 sont telles que leurs bords se raccordant à la face plane 60 et aux retours 62 ne sont pas parallèles l'un à l'autre. Par cette disposition, la face plane 60 forme un angle aigu avec le plan renfermant les retours 62. Ces faces latérales 61 sont par exemple trapézoïdales.The lateral faces 61 are such that their edges are connected to the flat face 60 and returns 62 are not parallel to each other. By this arrangement, the flat face 60 forms an acute angle with the plane containing the returns 62. These lateral faces 61 are by trapezoidal example.

Si l'on se reporte aux figures 2 à 5, on voit que la pièce 6 est montée à l'intérieur de la cage 3, sous la face inférieure de l'étrier en étant accrochée à celui-ci par la mise en place des retours 62 sur le dessus de la face inférieure dudit étrier 2. L'ouverture du dièdre constitué entre la face rectangulaire 60 de la pièce 6 et la face inférieure de l'étrier 2 est ouvert du côté destiné à l'insertion du câble.If we refer to Figures 2 to 5, we see that the part 6 is mounted inside the cage 3, under the underside of the stirrup being attached to it by the installation of returns 62 on the top of the underside of said stirrup 2. The opening of the dihedral constituted between the rectangular face 60 of the part 6 and the underside of the bracket 2 is open on the side intended for the insertion of the cable.

Ce dièdre ainsi formé permet à l'utilisateur d'insérer aisément l'extrémité du câble, munie de manière connue en soi d'un embout 51, entre la pièce 6 et l'étrier 2. Dans l'exemple de réalisation représenté au dessin l'embout 51 est un embout plat.This dihedral thus formed allows the user to easily insert the end of the cable, provided in a manner known per se with a ferrule 51, between part 6 and the stirrup 2. In the embodiment shown in the drawing the tip 51 is a flat tip.

De manière préférée et tel que représenté au dessin, le câble est inséré jusqu'à ce que l'extrémité libre de l'embout plat 51 dépasse de l'extrémité de la pièce 6 opposée au côté d'insertion du câble.Preferably and as shown in the drawing, the cable is inserted until the free end of the flat tip 51 protrudes the end of part 6 opposite the cable insertion side.

Les faces latérales 61 de la pièce 6 sont, du côté fermé du dièdre, de hauteur juste suffisante pour permettre le passage de l'extrémité du câble munie de l'embout 51. The lateral faces 61 of the part 6 are, on the closed side of the dihedral, of just high enough to allow the end of the cable with cable end 51.

L'extrémité du câble, munie de l'embout plat 51, est ainsi maintenue pincée dans la zone de raccordement, entre la pièce 6 et l'étrier 2, même lorsque la borne est desserrée comme représenté à la figure 1.The end of the cable, provided with the flat end piece 51, is thus maintained pinched in the connection area, between part 6 and bracket 2, even when the terminal is loose as shown in figure 1.

Lorsque l'on serre la borne, la pièce 6 pivote en étant poussée par le support de contact fixe 4 au cours du rapprochement de l'étrier 2 et du support de contact fixe 4, en étant maintenue latéralement au cours de ce déplacement par les parois latérales de la cage 3. La pièce 6 est, en fin de serrage, positionnée avec sa face plane 60 parallèle aux surfaces en vis-à-vis de l'étrier et du support de contact fixe. Ladite face plane 60 est alors en appui par toute sa surface avec l'embout plat 51 du câble tandis que les retours 62 s'étendent à distance de l'extrémité inférieure de l'étrier 2, obliquement par rapport à celle-ci.When the terminal is tightened, the part 6 pivots while being pushed by the fixed contact support 4 during the approximation of the stirrup 2 and of the fixed contact support 4, while being held laterally at the during this movement through the side walls of the cage 3. The part 6 is, at the end of tightening, positioned with its flat face 60 parallel to the surfaces facing the stirrup and the fixed contact support. Said flat face 60 is then supported by its entire surface with the flat end 51 of the cable while the returns 62 extend to distance from the lower end of the stirrup 2, obliquely by compared to it.

Cette position de la pièce 6 est représentée à la figure 4.This position of the part 6 is shown in FIG. 4.

Sur cette figure 4, on a également représenté les deux autres câbles 52 et 53 qu'il est possible de raccorder électriquement au support de contact fixe 4 lorsque la borne est munie de la pièce d'imperdabilité 6.In this figure 4, the other two cables have also been shown. 52 and 53 that can be electrically connected to the support fixed contact 4 when the bollard is fitted with the waterproofing part 6.

En effet, la mise en place de la pièce d'imperdabilité 6 crée une zone de raccordement supplémentaire et imperdable tout en conservant la ou les zones de raccordement initialement contenues dans la borne.Indeed, the establishment of the piece of impermeability 6 creates a zone additional captive connection while retaining the or the connection areas initially contained in the terminal.

Lorsque l'on desserre la borne, la cage 3 et l'étrier 2 s'écartent du support de contact 4 et les câbles 52 et 53 sont libres de tomber de leur zone de raccordement. La pièce 6 revient quant à elle dans sa position représentée à la figure 1 et maintient le câble 50 en place ce qui l'empêche de se déconnecter.When the terminal is loosened, the cage 3 and the bracket 2 move away from the contact support 4 and cables 52 and 53 are free to fall from their connection area. Exhibit 6 comes back in its position shown in Figure 1 and holds the cable 50 in place this which prevents him from disconnecting.

Le montage et l'utilisation de la pièce 6 sont bien entendu semblables lorsque la pièce 6 est montée sur le support de contact fixe 4 comme à la figure 1. The assembly and use of part 6 are of course similar when the part 6 is mounted on the fixed contact support 4 as in Figure 1.

On crée alors une zone de raccordement supplémentaire et imperdable entre le support de contact fixe 4 et la cage 3 en adaptant une pièce d'imperdabilité 6 au support de contact 4.We then create an additional connection area and captive between the fixed contact support 4 and the cage 3 by adapting a leakproof part 6 to the contact support 4.

Dans l'exemple de réalisation représenté à la figure 5, des moyens sont mis en oeuvre pour maintenir la pièce 6 dans sa position pour laquelle sa face plane 60 est en appui contre l'extrémité inférieure de l'étrier 2.In the embodiment shown in Figure 5, means are used to maintain the part 6 in its position for which its flat face 60 bears against the lower end of stirrup 2.

Ces moyens sont constitués par des ergots 26 portés par l'étrier 2 et des découpes pratiquées dans la bordure de la pièce 6.These means consist of lugs 26 carried by the stirrup 2 and cutouts made in the border of part 6.

Suivant une autre forme de réalisation de la pièce d'imperdabilité non représentée au dessin, ladite pièce est élastique et se déforme lors du serrage de la borne pour assurer le maintien du câble.According to another embodiment of the non-leakage part shown in the drawing, said part is elastic and deforms during tightening of the terminal to secure the cable.

Claims (11)

Appareil électrique, tel qu'un contacteur, portant un support de contact fixe (4) dépassant à l'extérieur de son boítier et une borne de raccordement du type comportant une cage (3) traversée par une vis de serrage (1), ledit support de contact fixe (4) et ladite borne comportant des surfaces de contact destinées à établir un contact électrique avec un ou des câbles externes, caractérisé en ce qu'il porte une pièce (6) permettant de créer une zone de raccordement supplémentaire située entre une surface de contact et la pièce (6), ladite zone de raccordement étant constituée de manière à maintenir le câble de manière imperdable.Electrical device, such as a contactor, carrying a support fixed contact (4) protruding outside of its housing and a terminal connection of the type comprising a cage (3) crossed by a screw clamp (1), said fixed contact support (4) and said terminal having contact surfaces for making contact electric with one or more external cables, characterized in that it carries a part (6) making it possible to create a connection zone additional located between a contact surface and the part (6), said connection area being formed so as to maintain the cable captive. Appareil selon la revendication 1, caractérisé en ce que la pièce (6) est positionnée sous une des surfaces de contacts.Apparatus according to claim 1, characterized in that the part (6) is positioned under one of the contact surfaces. Appareil selon la revendication 1 ou selon la revendication 2, caractérisé en ce que la pièce (6) est constituée d'une face plane (60) reliée à deux faces latérales (61) terminées, sur leur bord opposé à la face plane (60), par des retours (62) repliés en direction l'un de l'autre.Apparatus according to claim 1 or according to claim 2, characterized in that the part (6) consists of a flat face (60) connected to two finished side faces (61), on their edge opposite the flat face (60), by returns (62) folded towards one of the other. Appareil selon la revendication 3, caractérisé en ce que les bords des faces latérales (61) se raccordant à la face plane (60) et aux retours (62) ne sont pas parallèles l'un à l'autre, de telle façon que la face plane (60) forme un angle aigu avec le plan renfermant les retours (62).Apparatus according to claim 3, characterized in that the edges lateral faces (61) connecting to the flat face (60) and to the returns (62) are not parallel to each other, so that the flat face (60) forms an acute angle with the plane containing the returns (62). Appareil selon la revendication 4, caractérisé en ce que la pièce (6) est accrochée à la surface de contact par la mise en place des retours (62) sur le dessus de ladite surface de contact.Apparatus according to claim 4, characterized in that the part (6) is attached to the contact surface by fitting the returns (62) on top of said contact surface. Appareil selon la revendication 4 ou selon la revendication 5, caractérisé en ce que les faces latérales (61) sont trapézoïdales. Apparatus according to claim 4 or according to claim 5, characterized in that the lateral faces (61) are trapezoidal. Appareil selon la revendication 6, caractérisé en ce que la face plane (60) de la pièce (6) et la surface de contact forment entre elles un dièdre dont l'ouverture est dirigée du côté destiné à l'insertion du câble.Apparatus according to claim 6, characterized in that the face plane (60) of the part (6) and the contact surface form between them a dihedral whose opening is directed towards the side intended for the insertion of the cable. Appareil selon la revendication 7, caractérisé en ce que les faces latérales (61) sont, du côté fermé du dièdre, de hauteur juste suffisante pour permettre le passage de l'extrémité du câble, de sorte que l'extrémité du câble est maintenue pincée dans la zone de raccordement même lorsque la borne est desserrée.Apparatus according to claim 7, characterized in that the faces lateral (61) are, on the closed side of the dihedral, of just height sufficient to allow passage of the end of the cable, so that the end of the cable is kept pinched in the area of connection even when the terminal is loose. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce est susceptible d'être maintenue dans une position pour laquelle sa face plane est disposée contre la surface de contact par des moyens d'accrochage.Apparatus according to any one of the preceding claims, characterized in that the part is capable of being held in a position for which its flat face is arranged against the surface contact by hooking means. Appareil selon l'une quelconque des revendications précédentes dans lequel la borne de raccordement comporte un étrier (2) dont l'extrémité supérieure est montée sur la tête de la vis de serrage et l'extrémité inférieure est à proximité de l'extrémité inférieure de la vis, à l'intérieur de la cage, caractérisé en ce que la pièce (6) est montée à l'intérieur de la cage (3), sous la face inférieure de l'étrier.Apparatus according to any one of the preceding claims in which the connection terminal comprises a bracket (2) of which the upper end is mounted on the head of the clamping screw and the lower end is close to the lower end of the screw, inside the cage, characterized in that the part (6) is mounted at inside the cage (3), under the underside of the stirrup. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce (6) est positionnée sous le support de contact fixe (4).Apparatus according to any one of the preceding claims, characterized in that the part (6) is positioned under the support of fixed contact (4).
EP19980401725 1997-07-21 1998-07-08 Electrical apparatus having a fixed contact carrier and a connecting terminal Expired - Lifetime EP0893846B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709205A FR2766297B1 (en) 1997-07-21 1997-07-21 ELECTRICAL APPARATUS HAVING A FIXED CONTACT SUPPORT AND A CONNECTION TERMINAL
FR9709205 1997-07-21

Publications (2)

Publication Number Publication Date
EP0893846A1 true EP0893846A1 (en) 1999-01-27
EP0893846B1 EP0893846B1 (en) 2002-09-11

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EP19980401725 Expired - Lifetime EP0893846B1 (en) 1997-07-21 1998-07-08 Electrical apparatus having a fixed contact carrier and a connecting terminal

Country Status (4)

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EP (1) EP0893846B1 (en)
DE (1) DE69807799T2 (en)
ES (1) ES2181139T3 (en)
FR (1) FR2766297B1 (en)

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EP1028489A1 (en) * 1999-02-10 2000-08-16 ABBPATENT GmbH Connecting terminal device for wire and busbar flat conductors for an electrical apparatus
EP2019449A2 (en) 2007-07-26 2009-01-28 Abb Ag Screw-clamp and method for manufacturing thereof
DE102010033112A1 (en) * 2010-08-02 2012-02-02 Siemens Aktiengesellschaft Device for installing e.g. circuit breaking switch in electrical distribution board, has busbar that is rotated at end position according to opening amount of spring clip which is supported by housing
EP2429037A1 (en) * 2010-09-14 2012-03-14 Siemens Aktiengesellschaft Frame clamp element for electromechanical switching devices with integrated connection piece
LU502936B1 (en) * 2022-10-20 2024-04-22 Phoenix Contact Gmbh & Co Screw connection arrangement and connection terminal

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DE102006049810B4 (en) * 2006-10-17 2008-07-10 Siemens Ag Circuit breaker, in particular molded case circuit breaker, and auxiliary conductor connection for a circuit breaker
DE102011076563A1 (en) * 2011-05-26 2012-11-29 Siemens Aktiengesellschaft Frame clamp element for clamping electrical conductor to e.g. power switch in electric appliance in industry installation, has contact with planar/lower surfaces with structure geometries for optimizing clamping action of jammed conductor
FR2986664B1 (en) 2012-02-03 2014-02-14 Abb France ELECTRICAL CONNECTION TERMINAL
CN108767561B (en) * 2018-05-22 2019-12-06 上海航天科工电器研究院有限公司 connector for locking wire of wire locking groove
DE202022103614U1 (en) * 2022-06-29 2022-11-23 Raycap Ip Development Ltd. Modular surge protective device assemblies and electrical systems incorporating the same

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028489A1 (en) * 1999-02-10 2000-08-16 ABBPATENT GmbH Connecting terminal device for wire and busbar flat conductors for an electrical apparatus
EP2019449A2 (en) 2007-07-26 2009-01-28 Abb Ag Screw-clamp and method for manufacturing thereof
EP2019449A3 (en) * 2007-07-26 2009-12-16 Abb Ag Screw-clamp and method for manufacturing thereof
DE102010033112A1 (en) * 2010-08-02 2012-02-02 Siemens Aktiengesellschaft Device for installing e.g. circuit breaking switch in electrical distribution board, has busbar that is rotated at end position according to opening amount of spring clip which is supported by housing
DE102010033112B4 (en) * 2010-08-02 2021-02-04 Siemens Aktiengesellschaft Electrical installation device
EP2429037A1 (en) * 2010-09-14 2012-03-14 Siemens Aktiengesellschaft Frame clamp element for electromechanical switching devices with integrated connection piece
LU502936B1 (en) * 2022-10-20 2024-04-22 Phoenix Contact Gmbh & Co Screw connection arrangement and connection terminal
WO2024083661A1 (en) * 2022-10-20 2024-04-25 Phoenix Contact Gmbh & Co. Kg Screw connection arrangement and connection terminal

Also Published As

Publication number Publication date
DE69807799T2 (en) 2003-05-28
ES2181139T3 (en) 2003-02-16
FR2766297A1 (en) 1999-01-22
FR2766297B1 (en) 2002-11-29
DE69807799D1 (en) 2002-10-17
EP0893846B1 (en) 2002-09-11

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