EP0586312A1 - Electrical device with connection clamp - Google Patents

Electrical device with connection clamp Download PDF

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Publication number
EP0586312A1
EP0586312A1 EP93420342A EP93420342A EP0586312A1 EP 0586312 A1 EP0586312 A1 EP 0586312A1 EP 93420342 A EP93420342 A EP 93420342A EP 93420342 A EP93420342 A EP 93420342A EP 0586312 A1 EP0586312 A1 EP 0586312A1
Authority
EP
European Patent Office
Prior art keywords
terminal
protuberance
cage
face
housing
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
EP93420342A
Other languages
German (de)
French (fr)
Other versions
EP0586312B1 (en
Inventor
Noel Le Corre
Michel Lazareth
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.)
Schneider Electric SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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 Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0586312A1 publication Critical patent/EP0586312A1/en
Application granted granted Critical
Publication of EP0586312B1 publication Critical patent/EP0586312B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—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 electrical apparatus comprising at least one terminal provided with a clamping screw and intended to establish a connection with an electrical cable.
  • phase and neutral electrical circuit breakers have the disadvantage that the person carrying out the installation of these electrical devices must actuate the terminal clamping screws, for example using a screwdriver, in order to establish or remove the connection of the electric cables with these terminals.
  • a drawback lies in the fact that the actuation of the clamping screws causes mechanical stresses in the casing of the electrical equipment, and it has been frequently found that a certain number of breakdowns or deteriorations of the electrical equipment have cause excessive forces applied to the screws, in particular too high a tightening torque.
  • terminal which comprises a first part, hereinafter called “terminal cage”, constituted by a wall forming inside a cable housing, a second part, hereinafter called” clamping screw “, screwed radially through this wall, and a third part, hereinafter called” range of terminal ", part of which is housed in the cable housing, against the end of the clamping screw, and another part of which extends outside the terminal cage and is electrically connected to an electrical element of the electrical equipment.
  • terminal cage constituted by a wall forming inside a cable housing
  • clamping screw screwed radially through this wall
  • third part hereinafter called” range of terminal ", part of which is housed in the cable housing, against the end of the clamping screw, and another part of which extends outside the terminal cage and is electrically connected to an electrical element of the electrical equipment.
  • a stripped end of an electric cable can be put in the cable housing and the tightening of the clamping screw causes this cable end to be wedged between the terminal pad and the part of the wall of the terminal cage which is located opposite to the clamping screw.
  • Such a terminal has the advantage that the axial tightening force of the tightening screw is canceled out by a reaction force which is exerted in the terminal cage. It follows from this that the entire terminal does not communicate the axial clamping force to the part or parts which support and hold this terminal in place.
  • the tightening or loosening torque that a person exerts on the tightening screw, for example using a screwdriver, to cause the tightening screw to lock or unlock is a torque which is communicated by made to the entire terminal, and this couple necessarily causes an equal and opposite reaction torque at the level of the part or parts which serve to support and fix the terminal.
  • This part or these terminal support parts are generally constituted by parts of the casing of the electrical apparatus, that is to say by parts which are generally made of plastic and which are consequently relatively weak in mechanical resistance. This low mechanical resistance of this part or these terminal support parts appears in particular in miniaturized electrical equipment, for example in phase and neutral electrical circuit breakers.
  • the width of the circuit breaker is relatively small, for example around 10 to 15 mm, and in this width, we must have side by side the two disjunction mechanisms (one for the phase and one for the neutral), a central insulating partition, hereinafter called “partition”, used to separate the two mechanisms as well as two external lateral insulating walls, hereinafter called “side walls”, used to form the circuit breaker housing.
  • partition central insulating partition
  • each terminal has small dimensions and it is housed in a terminal housing formed in the housing of the electrical equipment, this terminal housing generally having substantially the same dimensions than the external dimensions of the terminal, so that the terminal is housed in this terminal housing with a slight play in all directions.
  • each terminal is preferably housed between one of the side walls and the partition. In practice, it is only the terminal cage which is thus supported in the terminal housing. Under these conditions, it is understood that the tightening or loosening torque causes significant reaction forces at the terminal housing because the terminal cage then rests in almost point areas of this terminal housing and because these zones are relatively close to each other due to the small dimensions of the terminal cage.
  • reaction torque which is equal and opposite to the tightening or loosening torque
  • these reaction forces at the level of the housing are consequently very large and they are exerted at the level of relatively thin parts of the housing, in particularly at the level of the zones of the side walls and of the zones of the partition which are in contact with the terminal cage.
  • these side walls and this partition are generally thin and made of plastic, it is understood that there have been frequent breaks, cracks or deterioration in these walls, this greatly reducing the reliability of these electrical devices after their installation.
  • An object of the present invention is to provide an electrical apparatus comprising at least one terminal fixed to a housing of the electrical apparatus, this electrical apparatus having good mechanical resistance when a significant torque is applied to a clamping screw of the terminal .
  • Another object of the invention consists in producing such electrical equipment which can constitute a miniaturized module.
  • Another object of the invention consists in producing such an electrical apparatus which can constitute a phase and neutral electrical circuit breaker with reduced bulk.
  • the invention therefore relates to an electrical apparatus in which a terminal comprises a terminal cage, a terminal pad disposed in the terminal cage and a clamping screw screwed into the terminal cage, so that a cable can be disposed in the terminal cage between an internal contact face of this terminal cage and a contact face of the terminal pad and can be tightened or loosened between these two contact faces due to the tightening or loosening of the clamping screw .
  • the terminal range is constituted by a metal part having the general shape of an elongated plate comprising a lateral protuberance which cooperates with a stop formed in an insulating part forming a part of a housing of the electrical apparatus, said protuberance being located at a relatively great distance from the clamping screw, whereby a tightening or loosening torque which is applied to the tightening screw causes a reaction torque of said housing on the terminal which is exerted in part at the contact between said stop and said protuberance.
  • said electrical apparatus is an electrical phase and neutral circuit breaker, characterized in that said stop is formed in a partition which separates a phase compartment and a neutral compartment.
  • said partition comprises a substantially flat wall portion which has a first face and a second face opposite the first face, and in that said stop formed in said partition consists by a protruding part which extends radially outward from said first face, this protruding part comprising a blind recess which opens at said second face and which has a concave shape which substantially matches the convex shape of said protuberance of the terminal range, from which it follows that the mounting of the terminal range can be carried out by accommodating said protuberance of the terminal range in said blind recess.
  • the dimensions of said protuberance of the terminal range and of said blind recess are such that said protuberance of the terminal range fits together in said blind recess with a certain tightening.
  • said abutment is provided at a part of the partition which has a thickness greater than the thickness of another part of the partition which is in contact with the terminal cage.
  • a proximal part of the terminal pad which is housed in a housing of the terminal cage further comprises a support beam which is rigidly fixed on this proximal part so that the clamping screw comes to bear on the beam, this beam thus serving to increase the rigidity of the terminal range and to distribute the pressure force of the clamping screw.
  • FIGS. 1 and 2 there is a general distinction between electrical equipment 1 which, in the example shown, corresponds to an electrical phase and neutral circuit breaker.
  • the electrical equipment 1 comprises a box 2 which comprises a phase compartment 3 and a neutral compartment 4. These two compartments 3 and 4 are separated by a partition 5.
  • the phase compartment 3 is intended to include a mechanism (shown partially and schematically in thin lines) of disjunction of a phase
  • the neutral compartment 4 is intended to include a mechanism (shown partially and shematically in thin lines) of disjunction of a neutral.
  • the entire housing 2, including the partition wall 5, is made of insulating material, for example a molded plastic.
  • terminals In such electrical equipment 1, a certain number of terminals should be provided (only one being shown in the figures), for example an input terminal and an output terminal for the phase and an input terminal and a terminal output for neutral. These terminals can be arranged in an identical or similar manner and, for this reason, it does not will be described later only one of these terminals.
  • a terminal can be made so as to comprise a terminal cage 8, a terminal pad 9 arranged in the terminal cage 8 and a clamping screw 10 screwed into the cage terminal, so that a cable 11 can be placed in the terminal cage 8 between an internal contact face 12 of this terminal cage 8 and a contact face 13 of the terminal pad 9 and can be tightened or loosened between these two contact faces 12, 13 due to the tightening or loosening of the tightening screw 10.
  • the tightening screw has thus been screwed until it is locked so as to connect the cable 11, the assembly constituted by the terminal cage 8, the terminal pad 9 and the screw 10 form a single block. Under these conditions, a tightening torque C or a loosening torque applied to the screw 10, for example by means of a screwdriver, is transmitted to the entire terminal, and this torque causes a reaction torque of said box 2 on the terminal.
  • this reaction torque is exerted only between the housing 2 and certain parts of the external surface of the terminal cage 8.
  • this terminal cage 8 has a relatively small width L1, by example of approximately 3 to 5 mm, the reaction forces of the housing 2 on opposite parts of the terminal cage 8 are relatively large since these reaction forces are equal to the reaction torque divided by the width L1.
  • the terminal pad 9 is constituted by a metal plate of generally elongated shape which has a proximal part 15 which is intended to be received in the terminal cage 8 and a distal part 16 which is relatively distant, for example about 3 to 15 mm from the clamping screw 10, and which is intended to be connected, for example by welding, to an electrical part (not shown ) of the disjunction mechanism (not shown).
  • the terminal pad 9 further comprises, at its distal part 16, a lateral protuberance 17. This lateral protuberance 17 is intended to come into abutment against a corresponding abutment part 18 formed in one of the parts of the housing 2 of electrical equipment.
  • such a stop 18 is formed in the partition wall 5 of the housing 2, as can be seen in FIG. 2.
  • This partition wall 5 comprises a substantially flat wall portion 20 which has a first face 21 and a second opposite face 22.
  • the stop 18 is constituted by a protruding part 24 which extends radially outwards from the first face 21, this protruding part 24 comprising a blind recess 25 which opens at the second face 22 and which has a concave shape which substantially matches the convex shape of the protuberance 17 of the terminal area 9.
  • the distance L2 which separates the distal end of the protuberance 17 of the proximal end of the pad 9 can be much greater than the width L1 of the terminal cage 8.
  • a characteristic of the range 9 is that that the protuberance 17 of the terminal range 9 is relatively distant from the axis X of the clamping screw 10, in order to support a torque C most important.
  • track 9 can be described otherwise by saying that the distal end of the protrusion 17 of track 9 is located at a distance from the axis X of the tightening screw 10 greater than the distance from l lateral end 31 of the terminal cage 8 with respect to this same axis X of the clamping screw 10.
  • the stop 18 can be provided in an area of the partition 5 which is relatively distant from the terminal cage 8 and which can be located in a part of the electrical equipment in which there is more large space, and therefore we can realize the stopper 18 more mechanically strong because there is more space.
  • the arrangement of the protuberance 17 and the stopper 18 also has another advantage which resides in the fact that it is possible to embed with zero or minimum clearance of the protuberance 17 in the recess 25 of the stopper 18 , and this provides a good mechanical connection between the protuberance 17 and the stop 18 which further improves the mechanical strength of these parts.
  • the arrangement of the protrusion 17 and the stopper 18 also has another advantage which will now be explained.
  • part of its mounting is facilitated by the presence of the protuberance 17 and the stopper 18.
  • the dimensions of the protuberance 17 and of the blind recess 25 are such that the protrusion 17 fits into the blind recess 25 with a certain tightening which is, preferably just enough to allow the terminal range 9 to be maintained on the housing 2 during the following operations of mounting the electrical equipment.
  • a proximal part 15 of the terminal pad which is housed in a housing of the terminal cage 8 further comprises a support beam 34 which is rigidly fixed on this proximal part 15 so that the clamping screw 10 comes to bear on the beam 34, this beam 34 thus serving to increase the rigidity of the terminal range 9 and to distribute the pressure force of the clamping screw.
  • the terminal pad 9 is made of copper or a copper alloy and the beam 34 is of planar shape and made of steel.
  • the beam 34 is crimped onto the proximal part 15 of planar shape of the pad 9.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

Electrical apparatus (1) in which a terminal comprises a terminal cage (8), a terminal area (9) located in the terminal cage (8), and a binding (locking) screw screwed into the terminal cage. According to the invention, the terminal area (9) comprises a lateral protuberance (17) which interacts with a limit stop (18) made in an insulating piece (5) forming part of a case (2) of the electrical equipment, the said protuberance (17) being located at a relatively great distance from the binding screw, thereby resulting in a binding (clamping) or unbinding (slackening) torque (C), which is applied to the binding screw, causes a reaction torque from the said case (2) on the terminal, which is exerted, in part, in the region of the contact between the said limit stop (18) and the said protuberance (17). <IMAGE>

Description

La présente invention concerne de façon générale un appareillage électrique comprenant au moins une borne munie d'une vis de serrage et destinée à établir une connexion avec un cable électrique.The present invention relates generally to an electrical apparatus comprising at least one terminal provided with a clamping screw and intended to establish a connection with an electrical cable.

Des appareillages électriques de ce type, par exemple des disjoncteurs électriques de phase et neutre, présentent l'inconvénient que la personne qui effectue l'installation de ces appareillages électriques doit actionner les vis de serrage des bornes, par exemple à l'aide d'un tournevis, afin d'établir ou de supprimer la connexion des câbles électriques avec ces bornes. Un inconvénient réside dans le fait que l'actionnement des vis de serrage provoque des contraintes mécaniques dans le boîtier de l'appareillage électrique, et il a été fréquemment constaté qu'un certain nombre de pannes ou de détériorations de l'appareillage électrique ont pour cause des efforts trop importants appliqués aux vis, en particulier un couple de serrage trop important.Electrical devices of this type, for example phase and neutral electrical circuit breakers, have the disadvantage that the person carrying out the installation of these electrical devices must actuate the terminal clamping screws, for example using a screwdriver, in order to establish or remove the connection of the electric cables with these terminals. A drawback lies in the fact that the actuation of the clamping screws causes mechanical stresses in the casing of the electrical equipment, and it has been frequently found that a certain number of breakdowns or deteriorations of the electrical equipment have cause excessive forces applied to the screws, in particular too high a tightening torque.

Pour que l'effort axial de la vis sur le câble ne provoque pas d'effort de réaction au niveau du boîtier de l'appareillage électrique, on a déjà proposé une borne qui comprend une première pièce, appelée par la suite "cage de borne", constituée par une paroi formant à l'intérieur un logement de câble, une seconde pièce, appelée par la suite "vis de serrage", vissée radialement au travers de cette paroi, et une troisième pièce, appelée par la suite "plage de borne", dont une partie est logée dans le logement de câble, contre l'extrémité de la vis de serrage, et dont une autre partie s'étend à l'extérieur de la cage de borne et est connectée électriquement à un élément électrique de l'appareillage électrique. Une extrémité dénudée d'un câble électrique peut être mise dans le logement de câble et le vissage de la vis de serrage provoque le coincement de cette extrémité de cable entre la plage de borne et la partie de la paroi de la cage de borne qui est située à l'opposé par rapport à la vis de serrage. Une telle borne présente l'avantage que la force axiale de serrage de la vis de serrage est annulée par une force de réaction qui s'exerce dans la cage de borne. Il résulte de cela que l'ensemble de la borne ne communique pas l'effort axial de serrage à la pièce ou aux pièces qui supportent et maintiennent en place cette borne.So that the axial force of the screw on the cable does not cause a reaction force at the level of the casing of the electrical apparatus, a terminal has already been proposed which comprises a first part, hereinafter called "terminal cage ", constituted by a wall forming inside a cable housing, a second part, hereinafter called" clamping screw ", screwed radially through this wall, and a third part, hereinafter called" range of terminal ", part of which is housed in the cable housing, against the end of the clamping screw, and another part of which extends outside the terminal cage and is electrically connected to an electrical element of the electrical equipment. A stripped end of an electric cable can be put in the cable housing and the tightening of the clamping screw causes this cable end to be wedged between the terminal pad and the part of the wall of the terminal cage which is located opposite to the clamping screw. Such a terminal has the advantage that the axial tightening force of the tightening screw is canceled out by a reaction force which is exerted in the terminal cage. It follows from this that the entire terminal does not communicate the axial clamping force to the part or parts which support and hold this terminal in place.

Cependant, le couple de serrage ou de desserrage qu'une personne exerce sur la vis de serrage, par exemple à l'aide d'un tournevis, pour provoquer le blocage ou le déblocage de la vis de serrage est un couple qui se communique en fait à l'ensemble de la borne, et ce couple provoque obligatoirement un couple de réaction égal et opposé au niveau de la pièce ou des pièces qui servent à supporter et à fixer la borne. Cette pièce ou ces pièces de support de la borne sont constituées généralement par des parties du boîtier de l'appareillage électrique, c'est-à-dire par des pièces qui sont généralement en matière plastique et qui sont par conséquent relativement peu résistantes mécaniquement. Cette faible résistance mécanique de cette pièce ou ces pièces de support de borne apparait en particulier dans des appareillages électriques miniaturisés, par exemple dans des disjoncteurs électriques de phase et neutre. En effet, dans de tels disjoncteurs électriques de phase et neutre, on souhaite généralement que la largeur du disjoncteur soit relativement faible, par exemple d'environ 10 à 15 mm, et dans cette largeur, on doit disposer côte-à-côte les deux mécanismes de disjonction (un pour la phase et un pour le neutre), une cloison isolante centrale, appelée par la suite "cloison de séparation", servant à séparer les deux mécanismes ainsi que deux parois isolantes latérales externes, appelées par la suite "parois latérales", servant à former le boîtier du disjoncteur.However, the tightening or loosening torque that a person exerts on the tightening screw, for example using a screwdriver, to cause the tightening screw to lock or unlock is a torque which is communicated by made to the entire terminal, and this couple necessarily causes an equal and opposite reaction torque at the level of the part or parts which serve to support and fix the terminal. This part or these terminal support parts are generally constituted by parts of the casing of the electrical apparatus, that is to say by parts which are generally made of plastic and which are consequently relatively weak in mechanical resistance. This low mechanical resistance of this part or these terminal support parts appears in particular in miniaturized electrical equipment, for example in phase and neutral electrical circuit breakers. Indeed, in such phase and neutral electric circuit breakers, it is generally desired that the width of the circuit breaker is relatively small, for example around 10 to 15 mm, and in this width, we must have side by side the two disjunction mechanisms (one for the phase and one for the neutral), a central insulating partition, hereinafter called "partition", used to separate the two mechanisms as well as two external lateral insulating walls, hereinafter called "side walls", used to form the circuit breaker housing.

Dans de tels appareillages électriques existants pour lesquels on recherche un encombrement réduit, chaque borne présente de faibles dimensions et elle est logée dans un logement de borne formé dans le boîtier de l'appareillage électrique, ce logement de borne présentant de façon générale sensiblement les mêmes dimensions que les dimensions externes de la borne, de telle sorte que la borne est logée dans ce logement de borne avec un léger jeu dans tous les sens. En particulier dans les disjoncteurs électriques de phase et neutre pour lesquels on recherche un encombrement réduit, chaque borne est de préférence logée entre l'une des parois latérales et la cloison de séparation. Dans la pratique, c'est uniquement la cage de borne qui est ainsi supportée dans le logement de borne. Dans ces conditions, on comprend que le couple de serrage ou de desserrage provoque des forces de réaction importantes au niveau du logement de borne parce que la cage de borne s'appuie alors en des zones quasi ponctuelles de ce logement de borne et parce que ces zones sont relativement proches l'une de l'autre du fait des faibles dimensions de la cage de borne. Puisque le couple de réaction, qui est égal et opposé au couple de serrage ou de desserrage, est relativement important, ces forces de réaction au niveau du boîtier sont par conséquent très importantes et elle s'exercent au niveau de parties relativemnt minces du boîtier, en particulier au niveau de zones des parois latérales et de zones de la cloison de séparation qui sont en contact avec la cage de borne. Comme ces parois latérales et cette cloison de séparation sont généralement minces et réalisées en matière plastique, on comprend qu'il a été fréquemment constaté des cassures, fissures ou détériorations au niveau de ces parois, ceci diminuant fortement la fiabilité de ces appareillages électriques après leur installation.In such existing electrical equipment for which a reduced space is sought, each terminal has small dimensions and it is housed in a terminal housing formed in the housing of the electrical equipment, this terminal housing generally having substantially the same dimensions than the external dimensions of the terminal, so that the terminal is housed in this terminal housing with a slight play in all directions. In particular in phase and neutral electrical circuit breakers for which a reduced bulk is sought, each terminal is preferably housed between one of the side walls and the partition. In practice, it is only the terminal cage which is thus supported in the terminal housing. Under these conditions, it is understood that the tightening or loosening torque causes significant reaction forces at the terminal housing because the terminal cage then rests in almost point areas of this terminal housing and because these zones are relatively close to each other due to the small dimensions of the terminal cage. Since the reaction torque, which is equal and opposite to the tightening or loosening torque, is relatively large, these reaction forces at the level of the housing are consequently very large and they are exerted at the level of relatively thin parts of the housing, in particularly at the level of the zones of the side walls and of the zones of the partition which are in contact with the terminal cage. As these side walls and this partition are generally thin and made of plastic, it is understood that there have been frequent breaks, cracks or deterioration in these walls, this greatly reducing the reliability of these electrical devices after their installation.

Un objet de la présente invention consiste à réaliser un appareillage électrique comprenant au moins une borne fixée à un boîtier de l'appareillage électrique, cet appareillage électrique présentant une bonne résistance mécanique lorsqu'un couple important est appliqué à une vis de serrage de la borne.An object of the present invention is to provide an electrical apparatus comprising at least one terminal fixed to a housing of the electrical apparatus, this electrical apparatus having good mechanical resistance when a significant torque is applied to a clamping screw of the terminal .

Un autre objet de l'invention consiste à réaliser un tel appareillage électrique pouvant constituer un module miniaturisé.Another object of the invention consists in producing such electrical equipment which can constitute a miniaturized module.

Un autre objet de l'invention consiste à réaliser un tel appareillage électrique pouvant constituer un disjoncteur électrique de phase et neutre à encombrement réduit.Another object of the invention consists in producing such an electrical apparatus which can constitute a phase and neutral electrical circuit breaker with reduced bulk.

L'invention concerne donc un appareillage électrique dans lequel une borne comprend une cage de borne, une plage de borne disposée dans la cage de borne et une vis de serrage vissée dans la cage de borne, de telle sorte qu'un cable puisse être disposé dans la cage de borne entre une face de contact interne de cette cage de borne et une face de contact de la plage de borne et puisse être serré ou desserré entre ces deux faces de contact du fait du serrage ou du desserrage de la vis de serrage.The invention therefore relates to an electrical apparatus in which a terminal comprises a terminal cage, a terminal pad disposed in the terminal cage and a clamping screw screwed into the terminal cage, so that a cable can be disposed in the terminal cage between an internal contact face of this terminal cage and a contact face of the terminal pad and can be tightened or loosened between these two contact faces due to the tightening or loosening of the clamping screw .

Selon une caractéristique de l'invention, la plage de borne est constituée par une pièce métallique ayant une forme générale d'une plaque allongée comprenant une protubérance latérale qui coopère avec une butée ménagée dans une pièce isolante formant une partie d'un boîtier de l'appareillage électrique, ladite protubérance étant située à une distance relativement grande de la vis de serrage, d'où il résulte qu'un couple de serrage ou de desserrage qui est appliqué à la vis de serrage provoque un couple de réaction dudit boîtier sur la borne qui s'exerce en partie au niveau du contact entre ladite butée et ladite protubérance.According to a characteristic of the invention, the terminal range is constituted by a metal part having the general shape of an elongated plate comprising a lateral protuberance which cooperates with a stop formed in an insulating part forming a part of a housing of the electrical apparatus, said protuberance being located at a relatively great distance from the clamping screw, whereby a tightening or loosening torque which is applied to the tightening screw causes a reaction torque of said housing on the terminal which is exerted in part at the contact between said stop and said protuberance.

Selon un mode de réalisation de l'invention, ledit appareillage électrique est un disjoncteur électrique de phase et neutre, caractérisé en ce que ladite butée est ménagée dans une cloison de séparation qui sépare un compartiment de phase et un compartiment de neutre.According to one embodiment of the invention, said electrical apparatus is an electrical phase and neutral circuit breaker, characterized in that said stop is formed in a partition which separates a phase compartment and a neutral compartment.

Selon un autre mode de réalisation de l'invention, ladite cloison de séparation comprend une partie de paroi sensiblement plane qui présente une première face et une seconde face opposée à la première face, et en que ladite butée ménagée dans ladite cloison de séparation est constituée par une partie en protubérance qui s'étend radialement vers l'extérieur à partir de ladite première face, cette partie en protubérance comprenant un évidement borgne qui débouche au niveau de ladite seconde face et qui a une forme concave qui épouse sensiblement la forme convexe de ladite protubérance de la plage de borne, d'où il résulte que le montage de la plage de borne peut s'effectuer en logeant ladite protubérance de la plage de borne dans ledit évidement borgne.According to another embodiment of the invention, said partition comprises a substantially flat wall portion which has a first face and a second face opposite the first face, and in that said stop formed in said partition consists by a protruding part which extends radially outward from said first face, this protruding part comprising a blind recess which opens at said second face and which has a concave shape which substantially matches the convex shape of said protuberance of the terminal range, from which it follows that the mounting of the terminal range can be carried out by accommodating said protuberance of the terminal range in said blind recess.

Selon un autre mode de réalisation de l'invention, les dimensions de ladite protubérance de la plage de borne et dudit évidement borgne sont telles que ladite protubérance de la plage de borne s'emboîte dans ledit évidement borgne avec un certain serrage.According to another embodiment of the invention, the dimensions of said protuberance of the terminal range and of said blind recess are such that said protuberance of the terminal range fits together in said blind recess with a certain tightening.

Selon un autre mode de réalisation de l'invention, ladite butée est ménagée au niveau d'une partie de la cloison de séparation qui présente une épaisseur plus importante que l'épaisseur d'une autre partie de la cloison de séparation qui est en contact avec la cage de borne.According to another embodiment of the invention, said abutment is provided at a part of the partition which has a thickness greater than the thickness of another part of the partition which is in contact with the terminal cage.

Selon un autre mode de réalisation de l'invention, une partie proximale de la plage de borne qui est logée dans un logement de la cage de borne comprend en outre une poutre d'appui qui est fixée rigidement sur cette partie proximale de telle sorte que la vis de serrage vienne s'appuyer sur la poutre, cette poutre servant ainsi à augmenter la rigidité de la plage de borne et à répartir la force de pression de la vis de serrage.According to another embodiment of the invention, a proximal part of the terminal pad which is housed in a housing of the terminal cage further comprises a support beam which is rigidly fixed on this proximal part so that the clamping screw comes to bear on the beam, this beam thus serving to increase the rigidity of the terminal range and to distribute the pressure force of the clamping screw.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté par les dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective d'une partie d'un appareillage électrique selon l'invention, une partie coupée et ôtée de l'appareillage électrique permettant dans cette vue de voir une partie de l'intérieur de l'appareillage électrique pour montrer en particulier les pièces qui sont relatives à la présente invention ;
  • la figure 2 et une vue en coupe de l'appareillage électrique de la figure 1, le plan de coupe de la figure 2 correspondant au plan de coupe de la figure 1 ;
  • la figure 3 est une vue en coupe simplifiée d'une borne selon l'invention, prise selon la ligne I-I de la figure 4 ;
  • la figure 4 est une vue de dessus de la borne de la figure 3 ;
  • la figure 5 est une vue de côté de la borne de la figure 3 ; et
  • la figure 6 est une vue en perspective plus détaillée d'une des pièces de la borne selon l'invention.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example, and represented by the appended drawings, in which:
  • Figure 1 is a perspective view of part of an electrical apparatus according to the invention, a cut and removed part of the electrical apparatus allowing in this view to see a part of the interior of the electrical apparatus for show in particular the parts which relate to the present invention;
  • Figure 2 and a sectional view of the electrical apparatus of Figure 1, the section plane of Figure 2 corresponding to the section plane of Figure 1;
  • Figure 3 is a simplified sectional view of a terminal according to the invention, taken along line II of Figure 4;
  • Figure 4 is a top view of the terminal of Figure 3;
  • Figure 5 is a side view of the terminal of Figure 3; and
  • Figure 6 is a more detailed perspective view of one of the parts of the terminal according to the invention.

Sur les figures 1 et 2, on distingue de façon générale un appareillage électrique 1 qui, dans l'exemple représenté, correspond à un disjoncteur électrique de phase et neutre. L'appareillage électrique 1 comprend un boîtier 2 qui comporte un compartiment de phase 3 et un compartiment de neutre 4. Ces deux compartiments 3 et 4 sont séparés par une cloison de séparation 5. Le compartiment de phase 3 est destiné à inclure un mécanisme (représenté partiellement et schématiquement en traits fins) de disjonction d'une phase et le compartiment de neutre 4 est destiné à inclure un mécanisme (représenté partiellement et shématiquement en traits fins) de disjonction d'un neutre. L'ensemble du boîtier 2, y compris la paroi de séparation 5, est réalisé en matériau isolant, par exemple une matière plastique moulée. Un tel agencement d'appareillage électrique est bien connu de l'art antérieur et, pour cette raison, il ne sera pas décrit plus en détail ici, seuls les éléments et les parties qui sont particuliers à la présente invention seront décrits en détail ci-après.In FIGS. 1 and 2, there is a general distinction between electrical equipment 1 which, in the example shown, corresponds to an electrical phase and neutral circuit breaker. The electrical equipment 1 comprises a box 2 which comprises a phase compartment 3 and a neutral compartment 4. These two compartments 3 and 4 are separated by a partition 5. The phase compartment 3 is intended to include a mechanism ( shown partially and schematically in thin lines) of disjunction of a phase and the neutral compartment 4 is intended to include a mechanism (shown partially and shematically in thin lines) of disjunction of a neutral. The entire housing 2, including the partition wall 5, is made of insulating material, for example a molded plastic. Such an arrangement of electrical equipment is well known in the prior art and, for this reason, it will not be described in more detail here, only the elements and the parts which are particular to the present invention will be described in detail below. after.

Dans un tel appareillage électrique 1, il convient de prévoir un certain nombre de bornes (une seule étant représentée sur les figures), par exemple une borne d'entrée et une borne de sortie pour la phase et une borne d'entrée et une borne de sortie pour le neutre. Ces bornes peuvent être agencées d'une manière identique ou similaire et, pour cette raison, il ne sera décrit par la suite qu'une seule de ces bornes.In such electrical equipment 1, a certain number of terminals should be provided (only one being shown in the figures), for example an input terminal and an output terminal for the phase and an input terminal and a terminal output for neutral. These terminals can be arranged in an identical or similar manner and, for this reason, it does not will be described later only one of these terminals.

Comme on peut le voir schématiquement sur les figures 3 à 5, une borne peut être réalisée de façon à comprendre une cage de borne 8, une plage de borne 9 disposée dans la cage de borne 8 et une vis de serrage 10 vissée dans la cage de borne, de telle sorte qu'un câble 11 puisse être disposé dans la cage de borne 8 entre une face de contact interne 12 de cette cage de borne 8 et une face de contact 13 de la plage de borne 9 et puisse être serré ou desserré entre ces deux faces de contact 12, 13 du fait du serrage ou du desserrage de la vis de serrage 10. Quand on a ainsi vissé la vis de serrage jusqu'à obtenir son blocage de façon à connecter le cable 11, l'ensemble constitué par la cage de borne 8, la plage de borne 9 et la vis 10 forment un seul bloc. Dans ces conditions, un couple de serrage C ou un couple de desserrage appliqué à la vis 10, par exemple par l'intermédiaire d'un tournevis, est transmis à l'ensemble de la borne, et ce couple entraîne un couple de réaction dudit boîtier 2 sur la borne.As can be seen diagrammatically in FIGS. 3 to 5, a terminal can be made so as to comprise a terminal cage 8, a terminal pad 9 arranged in the terminal cage 8 and a clamping screw 10 screwed into the cage terminal, so that a cable 11 can be placed in the terminal cage 8 between an internal contact face 12 of this terminal cage 8 and a contact face 13 of the terminal pad 9 and can be tightened or loosened between these two contact faces 12, 13 due to the tightening or loosening of the tightening screw 10. When the tightening screw has thus been screwed until it is locked so as to connect the cable 11, the assembly constituted by the terminal cage 8, the terminal pad 9 and the screw 10 form a single block. Under these conditions, a tightening torque C or a loosening torque applied to the screw 10, for example by means of a screwdriver, is transmitted to the entire terminal, and this torque causes a reaction torque of said box 2 on the terminal.

Dans les dispositifs similaires de l'art antérieur, ce couple de réaction s'exerce uniquement entre le boîtier 2 et certaines parties de la surface externe de la cage de borne 8. Comme cette cage de borne 8 présente une largeur L1 relativement faible, par exemple d'environ 3 à 5 mm, les forces de réaction du boîtier 2 sur des parties opposées de la cage de borne 8 sont relativement importantes puisque ces forces de réaction sont égales au couple de réaction divisé par la largeur L1.In similar devices of the prior art, this reaction torque is exerted only between the housing 2 and certain parts of the external surface of the terminal cage 8. As this terminal cage 8 has a relatively small width L1, by example of approximately 3 to 5 mm, the reaction forces of the housing 2 on opposite parts of the terminal cage 8 are relatively large since these reaction forces are equal to the reaction torque divided by the width L1.

Par contre, la borne 7 qui fait l'objet de la présente invention présente certaines particularités qui vcnt être décrites maintenant et qui permettent de réduire de façon significative l'intensité de ces forces de réaction. Comme on peut le voir en particulier sur la figure 2 et aussi sur les figures 3 à 6, la plage de borne 9 est constituée par une plaque métallique de forme générale allongée qui présente une partie proximale 15 qui est destinée à venir se loger dans la cage de borne 8 et une partie distale 16 qui est relativement éloignée, par exemple d'environ 3 à 15 mm de la vis de serrage 10, et qui est destinée à être connectée, par exemple par soudage, à une pièce électrique (non représentée) du mécanisme de disjonction (non représenté). La plage de borne 9 comporte en outre, au niveau de sa partie distale 16, une protubérance latérale 17. Cette protubérance latérale 17 est destinée à venir en butée contre une partie de butée correspondante 18 ménagée dans l'une des pièces du boîtier 2 de l'appareillage électrique.On the other hand, the terminal 7 which is the subject of the present invention has certain peculiarities which can now be described and which make it possible to significantly reduce the intensity of these reaction forces. As can be seen in particular in FIG. 2 and also in FIGS. 3 to 6, the terminal pad 9 is constituted by a metal plate of generally elongated shape which has a proximal part 15 which is intended to be received in the terminal cage 8 and a distal part 16 which is relatively distant, for example about 3 to 15 mm from the clamping screw 10, and which is intended to be connected, for example by welding, to an electrical part (not shown ) of the disjunction mechanism (not shown). The terminal pad 9 further comprises, at its distal part 16, a lateral protuberance 17. This lateral protuberance 17 is intended to come into abutment against a corresponding abutment part 18 formed in one of the parts of the housing 2 of electrical equipment.

Dans l'exemple qui est représenté ici, une telle butée 18 est ménagée dans la cloison de séparation 5 du boîtier 2, comme on peut le voir sur la figure 2. Cette cloison de séparation 5 comprend une partie de paroi 20 sensiblement plane qui présente une première face 21 et une seconde face opposée 22. La butée 18 est constituée par une partie en protubérance 24 qui s'étend radialement vers l'extérieur à partir de la première face 21, cette partie en protubérance 24 comprenant un évidement borgne 25 qui débouche au niveau de la seconde face 22 et qui a une forme concave qui épouse sensiblement la forme convexe de la protubérance 17 de la plage de borne 9. Comme on peut le voir sur la figure 2, la distance L2 qui sépare l'extrémité distale de la protubérance 17 de l'extrémité proximale de la plage 9 peut être beaucoup plus grande que la largeur L1 de la cage de borne 8. Il résulte de cela qu'un couple C exercé sur la vis 10 est transmis à la borne et que le couple de réaction du boîtier 2 sur la borne résulte d'une première force de réaction F1 s'exerçant au voisinage de l'extrémité proximale de la plage de borne 8 (ou de la cage de borne 9) et une seconde force de réaction F2 s'exerçant au voisinage de l'extrémité distale de la protubérance 17 de la plage de borne 9. Puisque la distance qui sépare ces deux forces F1 et F2 est sensiblement égale à la distance L2, on comprend que pour un couple donné C exercé sur la vis de serrage 10, les deux forces de réaction F1 et F2 puissent être relativement faibles puisqu'elles sont égales à ce couple C divisé par la distance L2 (qui est relativement grande).In the example shown here, such a stop 18 is formed in the partition wall 5 of the housing 2, as can be seen in FIG. 2. This partition wall 5 comprises a substantially flat wall portion 20 which has a first face 21 and a second opposite face 22. The stop 18 is constituted by a protruding part 24 which extends radially outwards from the first face 21, this protruding part 24 comprising a blind recess 25 which opens at the second face 22 and which has a concave shape which substantially matches the convex shape of the protuberance 17 of the terminal area 9. As can be seen in FIG. 2, the distance L2 which separates the distal end of the protuberance 17 of the proximal end of the pad 9 can be much greater than the width L1 of the terminal cage 8. It follows from this that a torque C exerted on the screw 10 is transmitted to the terminal and that l e reaction torque of case 2 on the terminal results from a first reaction force F1 acting in the vicinity of the proximal end of the terminal pad 8 (or of the terminal cage 9) and a second reaction force F2 acting in the vicinity of the end distal of the protuberance 17 of the terminal range 9. Since the distance which separates these two forces F1 and F2 is substantially equal to the distance L2, it is understood that for a given torque C exerted on the tightening screw 10, the two forces of reaction F1 and F2 can be relatively weak since they are equal to this couple C divided by the distance L2 (which is relatively large).

A titre de comparaison, on comprendra que dans un système classique semblable, c'est-à-dire une borne dans laquelle il n'est pas prévu de protubérance 17 et de butée 18, le couple de réaction du boîtier 2 sur la borne 7 résulte alors de deux forces Fx et Fy qui s'exercent sensiblement au niveau des extrémités latérales opposées 30, 31 de la cage de borne 8, et puisque dans ce cas, ces forces Fx et Fy sont égales au même couple C divisé par la largeur L1 de la cage de borne 8 (cette largeur L1 étant relativement faible), ces forces Fx et Fy sont relativement importantes. Par mesure de clarté, les forces Fx et Fy sont représentées par des flèches qui sont dessinées sur la figure 2 en pointillés parce que ces forces ne sont pas présentes dans un dispositif selon l'invention tel que représenté mais ne seraient présentes que dans un dispositif similaire qui ne présenterait pas les caractéristiques de la présente invention, c'est-à-dire un dispositif dans lequel il ne serait pas prévu de protubérance 17 et de butée 18. On peut dire qu'une caractéristique de la plage 9 réside en ce que la protubérance 17 de la plage de borne 9 est relativement éloignée de l'axe X de la vis de serrage 10, afin de supporter un couple C plus important. On peut décrire autrement cette caractéristique de la plage 9 en disant que l'extrémité distale de la protubérance 17 de la plage 9 est située à une distance par rapport à l'axe X de la vis de serrage 10 plus grande que la distance de l'extrémité latérale 31 de la cage de borne 8 par rapport à ce même axe X de la vis de serrage 10.For comparison, it will be understood that in a similar conventional system, that is to say a terminal in which there is no protuberance 17 and stop 18, the reaction torque of the housing 2 on the terminal 7 then results from two forces Fx and Fy which are exerted substantially at the level of the opposite lateral ends 30, 31 of the terminal cage 8, and since in this case, these forces Fx and Fy are equal to the same torque C divided by the width L1 of the terminal cage 8 (this width L1 being relatively small), these forces Fx and Fy are relatively large. For clarity, the forces Fx and Fy are represented by arrows which are drawn in FIG. 2 in dotted lines because these forces are not present in a device according to the invention as shown but would only be present in a device similar which would not have the characteristics of the present invention, that is to say a device in which there would be no protuberance 17 and abutment 18. It can be said that a characteristic of the range 9 is that that the protuberance 17 of the terminal range 9 is relatively distant from the axis X of the clamping screw 10, in order to support a torque C most important. This characteristic of track 9 can be described otherwise by saying that the distal end of the protrusion 17 of track 9 is located at a distance from the axis X of the tightening screw 10 greater than the distance from l lateral end 31 of the terminal cage 8 with respect to this same axis X of the clamping screw 10.

On peut remarquer que la butée 18 peut être ménagée dans une zone de la cloison de séparation 5 qui est relativement éloignée de la cage de borne 8 et qui peut être située dans une partie de l'appareillage électrique dans laquelle on dispose d'une plus grande place, et par conséquent on peut réaliser la butée 18 de façon plus résistante mécaniquement parce qu'on a plus de place. On peut par exemple prévoir une plus grande épaisseur de la cloison de séparation 5 dans cette zone 32 qui contient la butée 18, alors que l'épaisseur de la cloison de séparation 5 dans une autre zone 33 qui est en contact avec la cage de borne 8 doit rester plus faible afin de limiter la largeur de l'appareillage électrique.It can be noted that the stop 18 can be provided in an area of the partition 5 which is relatively distant from the terminal cage 8 and which can be located in a part of the electrical equipment in which there is more large space, and therefore we can realize the stopper 18 more mechanically strong because there is more space. One can for example provide a greater thickness of the partition wall 5 in this zone 32 which contains the stopper 18, while the thickness of the partition wall 5 in another zone 33 which is in contact with the terminal cage 8 must remain smaller in order to limit the width of the electrical equipment.

L'agencement de la protubérance 17 et de la butée 18 présente aussi un autre avantage qui réside dans le fait qu'il est possible de réaliser un encastrement avec un jeu nul ou minimal de la protubérance 17 dans l'évidement 25 de la butée 18, et cela procure une bonne liaison mécanique entre la protubérance 17 et la butée 18 qui améliore encore la résistance mécanique de ces pièces.The arrangement of the protuberance 17 and the stopper 18 also has another advantage which resides in the fact that it is possible to embed with zero or minimum clearance of the protuberance 17 in the recess 25 of the stopper 18 , and this provides a good mechanical connection between the protuberance 17 and the stop 18 which further improves the mechanical strength of these parts.

L'agencement de la protubérance 17 et de la butée 18 présente en outre un autre avantage qui va être expliqué maintenant. Lors de l'assemblage d'un appareillage électrique, il est nécessaire de monter un grand nombre de pièces, et il est bien connu que ces opérations de montage sont longues et délicates et constituent un facteur important d'augmentation du coût de l'appareillage électrique. Dans un appareillage selon l'invention, une partie de son montage est facilitée par la présence de la protubérance 17 et de la butée 18. En effet, il est possible de monter la plage de borne 9 sur le boîtier 2 en logeant la protubérance 17 dans l'évidement borgne 25 de la butée 18. De préférence, les dimensions de la protubérance 17 et de l'évidement borgne 25 sont telles que la protubérance 17 s'emboîte dans l'évidement borgne 25 avec un certain serrage qui est, de préférence, juste suffisant pour permettre le maintien de la plage de borne 9 sur le boîtier 2 au cours des opérations suivantes du montage de l'appareillage électrique.The arrangement of the protrusion 17 and the stopper 18 also has another advantage which will now be explained. When assembling electrical equipment, it is necessary to mount a large number of parts, and it is well known that these assembly operations are long and delicate and are an important factor in increasing the cost of electrical equipment. In an apparatus according to the invention, part of its mounting is facilitated by the presence of the protuberance 17 and the stopper 18. In fact, it is possible to mount the terminal pad 9 on the housing 2 by housing the protuberance 17 in the blind recess 25 of the stopper 18. Preferably, the dimensions of the protuberance 17 and of the blind recess 25 are such that the protrusion 17 fits into the blind recess 25 with a certain tightening which is, preferably just enough to allow the terminal range 9 to be maintained on the housing 2 during the following operations of mounting the electrical equipment.

Sur les figures 3 et 6, on distingue un perfectionnement optionnel qui peut être apporté à la plage de borne 9 dans le cadre de la présente invention. Ce perfectionnement réside en ce qu'une partie proximale 15 de la plage de borne qui est logée dans un logement de la cage de borne 8 comprend en outre une poutre d'appui 34 qui est fixée rigidement sur cette partie proximale 15 de telle sorte que la vis de serrage 10 vienne s'appuyer sur la poutre 34, cette poutre 34 servant ainsi à augmenter la rigidité de la plage de borne 9 et à répartir la force de pression de la vis de serrage. De préférence, la plage de borne 9 est réalisée en cuivre ou en un alliage de cuivre et la poutre 34 est de forme plane et réalisée en acier. De préférence, la poutre 34 est sertie sur la partie proximale 15 de forme plane de la plage 9.In FIGS. 3 and 6, there is an optional improvement which can be made to the terminal pad 9 in the context of the present invention. This improvement resides in that a proximal part 15 of the terminal pad which is housed in a housing of the terminal cage 8 further comprises a support beam 34 which is rigidly fixed on this proximal part 15 so that the clamping screw 10 comes to bear on the beam 34, this beam 34 thus serving to increase the rigidity of the terminal range 9 and to distribute the pressure force of the clamping screw. Preferably, the terminal pad 9 is made of copper or a copper alloy and the beam 34 is of planar shape and made of steel. Preferably, the beam 34 is crimped onto the proximal part 15 of planar shape of the pad 9.

Claims (6)

Appareillage électrique (1) dans lequel une borne comprend une cage de borne (8), une plage de borne (9) disposée dans la cage de borne (8) et une vis de serrage (10) vissée dans la cage de borne, de telle sorte qu'un cable (11) puisse être disposé dans la cage de borne entre une face de contact interne (12) de cette cage de borne et une face de contact (13) de la plage de borne et puisse être serré ou desserré entre ces deux faces de contact (12, 13) du fait du serrage ou du desserrage de la vis de serrage (10), caractérisé en ce que la plage de borne (9) est constituée par une pièce métallique ayant une forme générale d'une plaque allongée comprenant une protubérance latérale (17) qui coopère avec une butée (18) ménagée dans une pièce isolante (5) formant une partie d'un boîtier (2) de l'appareillage électrique, ladite protubérance (17) étant située à une distance relativement grande de la vis de serrage, d'où il résulte qu'un couple de serrage ou de desserrage (C) qui est appliqué à la vis de serrage (10) provoque un couple de réaction dudit boîtier (2) sur la borne qui s'exerce en partie au niveau du contact entre ladite butée (18) et ladite protubérance (17).Electrical equipment (1) in which a terminal comprises a terminal cage (8), a terminal pad (9) disposed in the terminal cage (8) and a clamping screw (10) screwed into the terminal cage, such that a cable (11) can be placed in the terminal cage between an internal contact face (12) of this terminal cage and a contact face (13) of the terminal pad and can be tightened or loosened between these two contact faces (12, 13) due to the tightening or loosening of the clamping screw (10), characterized in that the terminal area (9) is constituted by a metal part having a general shape of an elongated plate comprising a lateral protuberance (17) which cooperates with a stop (18) formed in an insulating part (5) forming a part of a housing (2) of the electrical equipment, said protuberance (17) being located at a relatively large distance from the tightening screw, whereby a tightening torque or sserrage (C) which is applied to the clamping screw (10) causes a reaction torque of said housing (2) on the terminal which is exerted in part at the contact between said stop (18) and said protuberance (17) . Appareillage électrique selon la revendication 1, dans lequel ledit appareillage électrique (1) est un disjoncteur électrique de phase et neutre, caractérisé en ce que ladite butée (18) est ménagée dans une cloison de séparation (5) qui sépare un compartiment de phase (3) et un compartiment de neutre (4).Electrical apparatus according to claim 1, in which said electrical apparatus (1) is a phase and neutral electrical circuit breaker, characterized in that said stop (18) is formed in a partition (5) which separates a phase compartment ( 3) and a compartment for neutral (4). Appareillage électrique selon la revendication 2, caractérisé en ce que ladite cloison de séparation (5) comprend une partie de paroi (20) sensiblement plane qui présente une première face (21) et une seconde face (22) opposée à la première face, et en que ladite butée ménagée dans ladite cloison de séparation est constituée par une partie en protubérance (24) qui s'étend radialement vers l'extérieur à partir de ladite première face (21), cette partie en protubérance comprenant un évidement borgne (25) qui débouche au niveau de ladite seconde face (22) et qui a une forme concave qui épouse sensiblement la forme convexe de ladite protubérance (17) de la plage de borne (9), d'où il résulte que le montage de la plage de borne peut s'effectuer en logeant ladite protubérance (17) de la plage de borne dans ledit évidement borgne (25).Electrical equipment according to claim 2, characterized in that said partition (5) comprises a wall portion (20) substantially planar which has a first face (21) and a second face (22) opposite the first face, and in that said stopper formed in said partition is constituted by a protruding part (24) which extends radially outward from said first face (21), this protruding part comprising a blind recess (25) which opens at the level of said second face (22) and which has a concave shape which substantially matches the convex shape of said protuberance (17) of the terminal area (9), from which it follows that the mounting of the area of bollard can be made by housing said protuberance (17) of the bollard range in said blind recess (25). Appareillage électrique selon la revendication 3, caractérisé en ce que les dimensions de ladite protubérance (17) de la plage de borne et dudit évidement borgne (25) sont telles que ladite protubérance de la plage de borne s'emboîte dans ledit évidement borgne avec un certain serrage.Electrical apparatus according to claim 3, characterized in that the dimensions of said protuberance (17) of the terminal area and of said blind recess (25) are such that said protuberance of the terminal area fits into said blind recess with a some tightening. Appareillage électrique selon l'une des revendications 2 à 4, caractérisé en ce que ladite butée (18) est ménagée au niveau d'une partie (32) de la cloison de séparation (5) qui présente une épaisseur plus importante que l'épaisseur d'une autre partie (33) de la cloison de séparation (5) qui est en contact avec la cage de borne (8).Electrical apparatus according to one of claims 2 to 4, characterized in that said stop (18) is provided at a part (32) of the partition (5) which has a thickness greater than the thickness another part (33) of the partition (5) which is in contact with the terminal cage (8). Appareillage électrique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une partie proximale (15) de la plage de borne qui est logée dans un logement de la cage de borne (8) comprend en outre une poutre d'appui (34) qui est fixée rigidement sur cette partie proximale (15) de telle sorte que la vis de serrage (10) vienne s'appuyer sur la poutre (34), cette poutre (34) servant ainsi à augmenter la rigidité de la plage de borne (9) et à répartir la force de pression de la vis de serrage.Electrical equipment according to any one of the preceding claims, characterized in that a proximal part (15) of the terminal pad which is housed in a housing in the terminal cage (8) further comprises a support beam (34) which is rigidly fixed on this proximal part (15) so that the clamping screw (10) comes to bear on the beam (34), this beam (34) serving thus increasing the rigidity of the terminal range (9) and distributing the pressure force of the clamping screw.
EP19930420342 1992-09-02 1993-08-17 Electrical device with connection clamp Expired - Lifetime EP0586312B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210549A FR2695258B1 (en) 1992-09-02 1992-09-02 Connection terminal for electrical equipment.
FR9210549 1992-09-02

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EP0586312A1 true EP0586312A1 (en) 1994-03-09
EP0586312B1 EP0586312B1 (en) 1997-01-15

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EP19930420342 Expired - Lifetime EP0586312B1 (en) 1992-09-02 1993-08-17 Electrical device with connection clamp

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EP (1) EP0586312B1 (en)
DE (1) DE69307434T2 (en)
ES (1) ES2097475T3 (en)
FR (1) FR2695258B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2799312A1 (en) * 1999-10-01 2001-04-06 Michaud Sa Electrical connection for thick cables comprises U-shaped clamp with and retaining rib tightened by clamp screw
GB2355863A (en) * 1999-10-27 2001-05-02 Philex Plc Electrical earth connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193202A (en) * 1939-03-13 1940-03-12 Cutler Hammer Inc Wiring-terminal device
DE2511385A1 (en) * 1975-03-15 1976-09-16 Phoenix Elekt Terminal connector with shaped cut outs - has protecting element for conductor and tapped holes for clamping screws
FR2535534A1 (en) * 1982-10-27 1984-05-04 Merlin Gerin Connection device, using mechanical clamping, for a cable or for a bar for connection to a contact area of an electrical apparatus.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193202A (en) * 1939-03-13 1940-03-12 Cutler Hammer Inc Wiring-terminal device
DE2511385A1 (en) * 1975-03-15 1976-09-16 Phoenix Elekt Terminal connector with shaped cut outs - has protecting element for conductor and tapped holes for clamping screws
FR2535534A1 (en) * 1982-10-27 1984-05-04 Merlin Gerin Connection device, using mechanical clamping, for a cable or for a bar for connection to a contact area of an electrical apparatus.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2799312A1 (en) * 1999-10-01 2001-04-06 Michaud Sa Electrical connection for thick cables comprises U-shaped clamp with and retaining rib tightened by clamp screw
GB2355863A (en) * 1999-10-27 2001-05-02 Philex Plc Electrical earth connector
GB2355863B (en) * 1999-10-27 2001-09-12 Philex Plc Electrical earth connector

Also Published As

Publication number Publication date
EP0586312B1 (en) 1997-01-15
FR2695258A1 (en) 1994-03-04
DE69307434D1 (en) 1997-02-27
DE69307434T2 (en) 1997-06-12
ES2097475T3 (en) 1997-04-01
FR2695258B1 (en) 1994-10-28

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