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EP0908915B1 - Casing for an electrical apparatus such as a circuit breaker - Google Patents

Casing for an electrical apparatus such as a circuit breaker Download PDF

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Publication number
EP0908915B1
EP0908915B1 EP98410108A EP98410108A EP0908915B1 EP 0908915 B1 EP0908915 B1 EP 0908915B1 EP 98410108 A EP98410108 A EP 98410108A EP 98410108 A EP98410108 A EP 98410108A EP 0908915 B1 EP0908915 B1 EP 0908915B1
Authority
EP
European Patent Office
Prior art keywords
case
opening
case according
connection
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.)
Expired - Lifetime
Application number
EP98410108A
Other languages
German (de)
French (fr)
Other versions
EP0908915A1 (en
Inventor
Laurent De Pourquoy
Tim Faber
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 Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0908915A1 publication Critical patent/EP0908915A1/en
Application granted granted Critical
Publication of EP0908915B1 publication Critical patent/EP0908915B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts

Definitions

  • the present invention relates to a housing for housing an electrical appliance such a circuit breaker and having, at least at one end, compartments of terminal in which are respectively housed connection areas and means of fixing said beaches to external conductors such as a bar, a cable etc.
  • connection to cables is known by means of terminals, the connection to bars or the connection of the "disconnectable" type to a fixed rigid conductor.
  • connection to bars or the connection of the "disconnectable" type to a fixed rigid conductor.
  • the transition from one connection mode to another requires the use of different parts.
  • One of the solutions used is to mount the screws in metal "clips" or insulating pads removably attached to the connection pads. After mounting the bars on the screws, these are retained on the connection surfaces by nuts.
  • immobilization of the screws is not necessary.
  • the isolation distances are ensured either by a cover screwed under the device (in the case of the use of a clip), or by a suitable shape and dimensions of the aforementioned wafer, when this it is used.
  • the present invention provides a gearbox of simple electrical design, allowing to realize different types of connection by using a minimum of parts.
  • the subject of the present invention is a housing according to claim 1.
  • the circular head screws are intended for the fixing of terminals on the connection pad.
  • the aforementioned non-circular head screws are intended for fixing bars on the connection pads.
  • the or each first opening is also adapted to receive a fixed rigid conductor.
  • the or each first opening forms at least one housing of substantially hexagonal shape cooperating with at least one screw whose head is substantially of the same shape.
  • EP 0 555 157 shows a device according to the preamble of claim 1.
  • FIG. 1 shows a low-voltage circuit-breaker of power D housed in a housing molded insulating 1, said housing 1 having at one of its ends the (the only visible on this figure), compartments 2 in which the connection areas 3 of the device.
  • these compartments 2 are intended to house terminals 4 for connecting the aforementioned ranges 3 to power cables 5.
  • These terminals 4 are constituted by blocks 6 fixed on the surfaces 3 by means of screws 7 introduced through the back of the housing 1, through two openings 8, 16 respectively first and second respectively provided in the housing 1 and in the range corresponding 3, before screwing into one of the ends of the corresponding terminal 4.
  • each compartment 2 of the housing 1 is associated an opening 8, said first, formed in the rear part of the housing 1 and allowing the passage of two screws for fixing a terminal 4.
  • This opening 8 form two housings 8a, 8b, of substantially hexagonal shape, connected by a rectilinear part 8c.
  • These two housings 8a, 8b are shaped to receive and allow, each, the free rotation of a 9, 10 and hollow-head round screw used for fastening of a terminal 4.
  • connection pads 3 are each connected to a 23.
  • the bar fixing screws 23 need to be immobilized in rotation.
  • screws having a hexagonal head 11, 12 are used which when introduced into the openings 8, are immobilized in rotation by the walls delimiting the portions of openings 8a, 8b of hexagonal shape.
  • the connection of the tracks 3 is carried out according to the disconnectable mode.
  • the openings 8 provided in the housing 1 are intended to receive each the free end 13a of a fixed connection pin 13, whose shape corresponds to that of the opening 8.
  • Each of the openings 8 provided in the housing 1 is closed by an insulating cover 19 hingedly connected to said housing 1 by a hinge 14 integrated in said cover 19.
  • This hinge is fixed to the housing by a clip (C), allowing the lid to remain secured to the housing in the open position of said lid. It will also be noted that when closing, the lid is closed by means of another clip.
  • connection operation will be described below briefly according to the type of chosen connection.
  • connection mode of the disconnectable type is chosen, the apparatus D is moved in direction of fixed conductors in the form of pins 13 so as to introduce the end 13a of said pins 13 inside the openings 8 of the housing 1.
  • the fixing of the pins 13 on the beaches 3 is carried out by means of a screw 17 introduced by the front of the apparatuses D through the two orifices 16, 8 respectively provided in the range 3 and the housing 1 and screwed into the corresponding end 13a of the pins 13.
  • Each rigid or pin 13 has an end 13a comprising two columns 18, 19 section substantially hexagonal connected by a crosspiece 20 and each having a hole 21 of fastener for receiving said screw 17, said end 13a co-operating with a first opening 8 of corresponding shape of the housing 1.
  • this housing further comprises a reinforcement piece 24 introduced into each first opening, which has a section slightly enlarged compared to the openings of the previous embodiment, so that to improve the resistance of the housing to the maintenance of the screws.
  • this reinforcing piece 24 is removable so as to allow, when it is extracted from the housing, the housing of a rigid section fixed conductor slightly enlarged.
  • housings and screw heads are given only as a example.
  • Other forms for housing and screw heads can of course be envisaged in the context of the invention provided that they allow the locking of these screws by rotation and allow the free rotation of circular head screws.
  • the screws used will advantageously be standardized screws.
  • the different electrical isolation distances are ensured by the cover.
  • the Bar connection is simple and only one tool is needed to perform the tightening. Note also the possibility of changing the standard screws by others (more or less long).
  • the housing of the device fulfills several functions namely, the support of the ranges of connection, the isolation of the phases between them, and with the outside, the holding in rotation of screw connection bar, the function of screw cover fixing, the maintenance of the screws before and during the installation of the device, the respect of the electrical isolation distances through the lid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Casings For Electric Apparatus (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Patch Boards (AREA)

Description

La présente invention concerne un boítier destiné au logement d'un appareil électrique tel un disjoncteur et comportant, à l'une au moins de ses extrémités, des compartiments de borne dans lesquels sont logés respectivement des plages de raccordement et des moyens de fixation desdites plages à des conducteurs extérieurs tels une barre, un câble etc.The present invention relates to a housing for housing an electrical appliance such a circuit breaker and having, at least at one end, compartments of terminal in which are respectively housed connection areas and means of fixing said beaches to external conductors such as a bar, a cable etc.

Il existe actuellement différentes possibilités de raccordement de puissance d'un disjoncteur basse tension par l'avant de l'appareil. On connaít en effet le raccordement à des câbles par l'intermédiaire de bornes, le raccordement à des barres ou le raccordement du type "déconnectable" à un conducteur rigide fixe.
Généralement, le passage d'un mode de raccordement à l'autre nécessite l'utilisation de pièces différentes. Par exemple, pour la fixation d'une plage de raccordement à une barre, il est nécessaire d'immobiliser les vis en rotation. L'une des solutions utilisées consiste à monter les vis dans des "clips" métalliques ou plaquettes isolantes fixés de manière amovible aux plages de raccordement. Après montage des barres sur les vis, celles-ci sont retenues sur les plages de raccordement par des écrous. Par contre, pour le raccordement à des câbles de puissance, une telle immobilisation des vis n'est pas nécessaire. Ces dernières sont montées à travers les plages par l'arrière de l'appareil et vissées directement dans les bornes montées à cet effet sur les plages de raccordement. Selon ces réalisations, les distances d'isolement sont assurées soit par un couvercle vissé sous l'appareil (dans le cas de l'utilisation d'un clips), soit par une forme et des dimensions appropriées de la plaquette précitée, lorsque celle-ci est utilisée.There are currently different possibilities for power connection of a low voltage circuit breaker from the front of the unit. The connection to cables is known by means of terminals, the connection to bars or the connection of the "disconnectable" type to a fixed rigid conductor.
Generally, the transition from one connection mode to another requires the use of different parts. For example, for fixing a connection range to a bar, it is necessary to immobilize the screws in rotation. One of the solutions used is to mount the screws in metal "clips" or insulating pads removably attached to the connection pads. After mounting the bars on the screws, these are retained on the connection surfaces by nuts. On the other hand, for the connection to power cables, such immobilization of the screws is not necessary. The latter are mounted through the tracks at the rear of the unit and screwed directly into the terminals mounted for this purpose on the connection pads. According to these embodiments, the isolation distances are ensured either by a cover screwed under the device (in the case of the use of a clip), or by a suitable shape and dimensions of the aforementioned wafer, when this it is used.

La présente invention propose un boítier d'appareillage électrique de conception simple, permettant de réaliser différents types de connexion en utilisant un minimum de pièces.The present invention provides a gearbox of simple electrical design, allowing to realize different types of connection by using a minimum of parts.

A cet effet, la présente invention a pour objet un boítier selon la revendication 1. Selon une caractéristique particulière de l'invention, les vis à tête circulaire sont destinées à la fixation de bornes sur la plage de raccordement.For this purpose, the subject of the present invention is a housing according to claim 1. According to a particular characteristic of the invention, the circular head screws are intended for the fixing of terminals on the connection pad.

Selon une caractéristique particulière de l'invention, les vis à tête non circulaire précitées sont destinées à la fixation de barres sur les plages de raccordement.According to a particular characteristic of the invention, the aforementioned non-circular head screws are intended for fixing bars on the connection pads.

Selon une autre caractéristique, la ou chaque première ouverture est également adaptée à recevoir un conducteur rigide fixe.According to another characteristic, the or each first opening is also adapted to receive a fixed rigid conductor.

Selon une autre caractéristique, la ou chaque première ouverture forme au moins un logement de forme sensiblement hexagonale coopérant avec au moins une vis dont la tête est sensiblement de même forme.According to another characteristic, the or each first opening forms at least one housing of substantially hexagonal shape cooperating with at least one screw whose head is substantially of the same shape.

Le document EP 0 555 157 montre un dispositif selon le préambule de la revendication 1.EP 0 555 157 shows a device according to the preamble of claim 1.

Mais d'autres avantages et caractéristiques de l'invention apparaítront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure 1 est une vue partielle en perspective, illustrant la partie arrière d'un disjoncteur basse tension logé dans un boítier conforme à l'invention et dans lequel le mode de raccordement du type "borne" est utilisé,
  • les figures 2 et 3 sont des vues partielles en coupe longitudinale de la figure précédente, respectivement en position non raccordée et raccordée du câble,
  • la figure 4 est une vue en coupe similaire aux figures 2 et 3, illustrant le mode de raccordement du type barre,
  • la figure 5 est une vue partielle en perspective, illustrant la partie avant du boítier d'un disjoncteur, le mode de raccordement du type déconnectable étant utilisé,
  • la figure 6 est une vue partielle en coupe longitudinale de la figure 5, et
  • la figure 7 est une vue partielle en perspective, illustrant la partie arrière d'un disjoncteur basse tension logé dans un boítier conforme à une autre réalisation de l'invention.
But other advantages and features of the invention will appear better in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • FIG. 1 is a partial perspective view, illustrating the rear part of a low-voltage circuit-breaker housed in a housing according to the invention and in which the "terminal" type connection mode is used,
  • FIGS. 2 and 3 are partial views in longitudinal section of the preceding figure, respectively in the unconnected and connected position of the cable,
  • FIG. 4 is a sectional view similar to FIGS. 2 and 3, illustrating the connection mode of the bar type,
  • FIG. 5 is a partial perspective view, illustrating the front part of the housing of a circuit breaker, the connection mode of the disconnectable type being used,
  • FIG. 6 is a partial view in longitudinal section of FIG. 5, and
  • Figure 7 is a partial perspective view, illustrating the rear portion of a low voltage circuit breaker housed in a housing according to another embodiment of the invention.

Sur la figure 1, on voit un disjoncteur basse tension de puissance D logé dans un boítier moulé isolant 1, ledit boítier 1 comportant à l'une de ses extrémités la (la seule visible sur cette figure), des compartiments 2 dans lesquels s'étendent les plages de raccordement 3 de l'appareil.FIG. 1 shows a low-voltage circuit-breaker of power D housed in a housing molded insulating 1, said housing 1 having at one of its ends the (the only visible on this figure), compartments 2 in which the connection areas 3 of the device.

Selon la réalisation illustrée sur les figures 1 à 3, ces compartiments 2 sont destinés à loger des bornes 4 pour le raccordement des plages précitées 3 à des câbles de puissance 5. Ces bornes 4 sont constituées par des blocs 6 fixés sur les plages 3 par l'intermédiaire de vis 7 introduites par l'arrière du boítier 1, à travers deux ouvertures 8, 16 respectivement première et seconde prévues respectivement dans le boítier 1 et dans la plage correspondante 3, avant de se visser dans l'une des extrémités de la borne correspondante 4.According to the embodiment illustrated in Figures 1 to 3, these compartments 2 are intended to house terminals 4 for connecting the aforementioned ranges 3 to power cables 5. These terminals 4 are constituted by blocks 6 fixed on the surfaces 3 by means of screws 7 introduced through the back of the housing 1, through two openings 8, 16 respectively first and second respectively provided in the housing 1 and in the range corresponding 3, before screwing into one of the ends of the corresponding terminal 4.

Comme on le voit plus particulièrement sur la figure 1, à chaque compartiment 2 du boítier 1 est associée une ouverture 8, dite première, ménagée dans la partie arrière du boítier 1 et permettant le passage de deux vis de fixation d'une borne 4. Cette ouverture 8 forme deux logements 8a, 8b, de forme sensiblement hexagonale, reliées par une partie rectiligne 8c.As can be seen more particularly in FIG. 1, at each compartment 2 of the housing 1 is associated an opening 8, said first, formed in the rear part of the housing 1 and allowing the passage of two screws for fixing a terminal 4. This opening 8 form two housings 8a, 8b, of substantially hexagonal shape, connected by a rectilinear part 8c.

Ces deux logements 8a, 8b sont conformés de manière à recevoir et à permettre, chacun, la libre rotation d'une vis à tête ronde 9, 10 et à empreinte creuse utilisée pour la fixation d'une borne 4.These two housings 8a, 8b are shaped to receive and allow, each, the free rotation of a 9, 10 and hollow-head round screw used for fastening of a terminal 4.

Sur la figure 4, on voit que les plages de raccordement 3 sont connectées chacune à une barre 23. Dans ce cas, les vis de fixation de barre 23 nécessitent d'être immobilisées en rotation. A cet effet, on utilise des vis présentant une tête hexagonale 11, 12, lesquelles, lorsqu'introduites dans les ouvertures 8, sont immobilisées en rotation par les parois délimitant les portions d'ouvertures 8a, 8b de forme hexagonale.In FIG. 4, it can be seen that the connection pads 3 are each connected to a 23. In this case, the bar fixing screws 23 need to be immobilized in rotation. For this purpose, screws having a hexagonal head 11, 12 are used which when introduced into the openings 8, are immobilized in rotation by the walls delimiting the portions of openings 8a, 8b of hexagonal shape.

Sur les figures 5 et 6, le raccordement des plages 3 s'effectue selon le mode déconnectable. Ainsi, les ouvertures 8 prévues dans le boítier 1 sont destinées à recevoir chacune l'extrémité libre 13a d'une broche de connexion fixe 13, dont la forme correspond à celle de l'ouverture 8.In FIGS. 5 and 6, the connection of the tracks 3 is carried out according to the disconnectable mode. Thus, the openings 8 provided in the housing 1 are intended to receive each the free end 13a of a fixed connection pin 13, whose shape corresponds to that of the opening 8.

Chacune des ouvertures 8 prévues dans le boítier 1 est obturée par un couvercle 19 isolant relié de manière articulée audit boítier 1 par une charnière 14 intégrée audit couvercle 19. Cette charnière est fixée au boítier par un clip (C), permettant au couvercle de rester solidaire du boítier en position d'ouverture dudit couvercle. On notera également qu'au moment de la fermeture, le couvercle est fermé au moyen d'un autre clip. Each of the openings 8 provided in the housing 1 is closed by an insulating cover 19 hingedly connected to said housing 1 by a hinge 14 integrated in said cover 19. This hinge is fixed to the housing by a clip (C), allowing the lid to remain secured to the housing in the open position of said lid. It will also be noted that when closing, the lid is closed by means of another clip.

On décrira ci-après brièvement l'opération de raccordement en fonction du type de raccordement choisi.The connection operation will be described below briefly according to the type of chosen connection.

Lorsque le raccordement s'effectue au moyen de bornes 4, les couvercles 19 sont amenés en position d'ouverture (fig.2), puis deux vis à tête ronde 9, 10 sont introduites dans l'ouverture correspondante 8. Les vis sont alors vissées dans la borne 4 au moyen d'un outil approprié, les têtes de vis tournant librement dans les ouvertures 8. On introduit alors les câbles de puissance 5 dans les orifices 22 prévus à cet effet dans les bornes 4 (fig. 3).When the connection is effected by means of terminals 4, the covers 19 are brought into opening position (fig.2), then two round head screws 9, 10 are inserted into the corresponding opening 8. The screws are then screwed into terminal 4 by means of a tool appropriate, the screw heads rotating freely in the openings 8. Then the power cables 5 in the orifices 22 provided for this purpose in the terminals 4 (FIG 3).

Lorsque le raccordement s'effectue sur une barre 23, deux vis à tête hexagonale 11, 12 sont préalablement introduites par l'arrière de l'appareil D dans les ouvertures correspondantes 8, 16 du boítier 1 et de la plage 3 après ouverture des couvercles 19. Les têtes de vis 11, 12 étant immobilisées dans le boítier 1, la fixation de la barre 23 sur la plage 3 est assurée par l'intermédiaire d'un écrou 15.When the connection is made on a bar 23, two hexagonal screws 11, 12 are previously introduced from the rear of the apparatus D into the corresponding openings 8, 16 of the housing 1 and the range 3 after opening the covers 19. The screw heads 11, 12 being immobilized in the housing 1, the fixing of the bar 23 on the range 3 is ensured by via a nut 15.

Si le mode de raccordement du type déconnectable est choisi, l'appareil D est déplacé en direction de conducteurs fixes sous forme de broches 13 de manière à introduire l'extrémité 13a desdites broches 13 à l'intérieur des ouvertures 8 du boítier 1. La fixation des broches 13 sur les plages 3 s'effectue au moyen d'une vis 17 introduite par l'avant des appareils D à travers les deux orifices 16, 8 prévus respectivement dans la plage 3 et le boítier 1 et vissée dans l'extrémité correspondante 13a des broches 13. Chaque conducteur rigide ou broche 13 comporte une extrémité 13a comprenant deux colonnes 18, 19 de section sensiblement hexagonale reliées par une traverse 20 et comportant chacune un orifice 21 de fixation destiné à recevoir ladite vis 17, ladite extrémité 13a coopérant avec une première ouverture 8 de forme correspondante du boítier 1.If the connection mode of the disconnectable type is chosen, the apparatus D is moved in direction of fixed conductors in the form of pins 13 so as to introduce the end 13a of said pins 13 inside the openings 8 of the housing 1. The fixing of the pins 13 on the beaches 3 is carried out by means of a screw 17 introduced by the front of the apparatuses D through the two orifices 16, 8 respectively provided in the range 3 and the housing 1 and screwed into the corresponding end 13a of the pins 13. Each rigid or pin 13 has an end 13a comprising two columns 18, 19 section substantially hexagonal connected by a crosspiece 20 and each having a hole 21 of fastener for receiving said screw 17, said end 13a co-operating with a first opening 8 of corresponding shape of the housing 1.

On notera que dans le cas où ce mode de raccordement est choisi, il n'est pas absolument nécessaire que la broche soit immobilisée en rotation dans l'ouverture et donc que la forme de la broche corresponde exactement à celle de l'ouverture.Note that in the case where this connection mode is chosen, it is not absolutely necessary necessary that the pin is immobilized in rotation in the opening and thus that the shape the spindle corresponds exactly to that of the opening.

Selon une autre réalisation particulière de l'invention, ce boítier comporte en outre une pièce de renfort 24 introduite dans chaque première ouverture, laquelle présente une section légèrement agrandie par rapport aux ouvertures du mode de réalisation précédent, afin d'améliorer la résistance du boítier au maintien des vis.According to another particular embodiment of the invention, this housing further comprises a reinforcement piece 24 introduced into each first opening, which has a section slightly enlarged compared to the openings of the previous embodiment, so that to improve the resistance of the housing to the maintenance of the screws.

Avantageusement, cette pièce de renfort 24 est amovible de manière à permettre, lorsque celle-ci est extraite du boítier, le logement d'un conducteur rigide fixe de section légèrement agrandie. Advantageously, this reinforcing piece 24 is removable so as to allow, when it is extracted from the housing, the housing of a rigid section fixed conductor slightly enlarged.

On notera que la forme hexagonale des logements et des têtes de vis n'est donnée qu'à titre d'exemple. D'autres formes pour les logements et les têtes de vis pourront bien entendu être envisagées dans le cadre de l'invention pourvu qu'elles permettent le blocage de ces vis en rotation et qu'elles permettent la libre rotation de vis à tête circulaire. Les vis utilisées seront avantageusement des vis normalisées.Note that the hexagonal shape of the housings and screw heads is given only as a example. Other forms for housing and screw heads can of course be envisaged in the context of the invention provided that they allow the locking of these screws by rotation and allow the free rotation of circular head screws. The screws used will advantageously be standardized screws.

On voit que grâce à l'invention, le passage d'un mode de raccordement à l'autre s'effectue avec les mêmes pièces, sans pièce intermédiaire.It can be seen that, thanks to the invention, the transition from one connection mode to the other takes place with the same parts, without any intermediate part.

Les différentes distances d'isolement électrique sont assurées par le couvercle. Le raccordement par barre est réalisé de manière simple, un seul outil étant nécessaire pour effectuer le serrage. On notera également la possibilité de changer les vis normalisées par d'autres (plus ou moins longues).The different electrical isolation distances are ensured by the cover. The Bar connection is simple and only one tool is needed to perform the tightening. Note also the possibility of changing the standard screws by others (more or less long).

Le boítier de l'appareil remplit plusieurs fonctions à savoir, le support des plages de raccordement, l'isolement des phases entre elles, et avec l'extérieur, la tenue en rotation des vis de raccordement barre, la fonction de couvercle des vis de fixation, le maintien des vis avant et en cours d'installation de l'appareil, le respect des distances d'isolement électrique par l'intermédiaire du couvercle.The housing of the device fulfills several functions namely, the support of the ranges of connection, the isolation of the phases between them, and with the outside, the holding in rotation of screw connection bar, the function of screw cover fixing, the maintenance of the screws before and during the installation of the device, the respect of the electrical isolation distances through the lid.

On notera également que le couvercle de vis est imperdable grâce à l'utilisation de la charnière intégrée.Note also that the screw cover is captive thanks to the use of the integrated hinge.

Claims (12)

  1. A case designed for housing an electrical apparatus such as a circuit breaker, said case comprising, at at least one of the ends thereof, terminal compartments wherein there are respectively housed connection strips and means for fixing said strips to external conductors such as a bar, a cable etc., these means comprise, for at least one of the previously mentioned compartments (2), at least one first opening (8) provided in the case (1), at least one second opening (16) provided in the connection strip (3) and situated facing the first opening (8), and at least one screw (7) passing through two apertures facing the case (1) and the strip (3) to perform fixing of a conductor (5, 11, 13) onto the connection strip (3), characterized in that said first opening (8) is shaped in such a way as on the one hand to receive and guide in rotation at least one screw head (9, 10) of circular shape, and on the other hand to block in rotation with respect to the case (1) at least one screw head (11, 12) of suitable non-circular shape.
  2. Case according to claim 1, characterized in that the screws (7) with circular heads (9, 10) are designed for fixing terminals (4) onto the connection strip (3).
  3. Case according to claim 1 or 2, characterized in that the previously mentioned screws (7) with non-circular heads (11, 12) are designed for fixing bars (23) onto the connection strips (3).
  4. Case according to any one of the claims 1 to 3, characterized in that the or each first opening (8) is also designed to receive a fixed rigid conductor (13).
  5. Case according to any one of the claims 1 to 4, characterized in that the or each first opening (8) forms at least one housing (8a, 8b) of appreciably hexagonal shape cooperating with at least one screw (11, 12) whose head is appreciably of the same shape.
  6. Case according to any one of the foregoing claims, characterized in that the or each opening (8) is closed by an insulating cover (19) joined in articulated manner to the case (1) by a hinge (14) integrated in said cover (19) and fixed to the case by a clip (C).
  7. Case according to claim 4, characterized in that the or each rigid conductor (13) comprises an end (13a) comprising two columns (18, 19) of appreciably hexagonal cross-section joined by a cross-member (20) and each comprising an aperture (21) for fixing a screw, said end (13a) operating in conjunction with a first opening (8) of corresponding shape of the case (1).
  8. Case according to any one of the foregoing claims, characterized in that the case (1) is made at least partly of an insulating material, so as to ensure the relative isolation of the different phases.
  9. Case according to any one of the foregoing claims, characterized in that the or each previously mentioned first opening (8) is arranged in the rear part of the case (1).
  10. Case according to any one of the foregoing claims, characterized in that it is designed to house a circuit breaker D.
  11. Case according to any one of the foregoing claims, characterized in that it comprises in addition a strengthener (24) inserted in the or each first opening (8) presenting a slightly enlarged cross-section in order to improve the resistance of the case in securing the screws.
  12. Case according to claim 11, characterized in that the previously mentioned strengthener (24) is removable so as to enable a fixed rigid conductor of slightly enlarged cross-section to be housed when it is extracted from the case.
EP98410108A 1997-10-08 1998-09-25 Casing for an electrical apparatus such as a circuit breaker Expired - Lifetime EP0908915B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712780A FR2769404B1 (en) 1997-10-08 1997-10-08 HOUSING FOR AN ELECTRICAL APPARATUS SUCH AS A CIRCUIT BREAKER
FR9712780 1997-10-08

Publications (2)

Publication Number Publication Date
EP0908915A1 EP0908915A1 (en) 1999-04-14
EP0908915B1 true EP0908915B1 (en) 2005-12-21

Family

ID=9512166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98410108A Expired - Lifetime EP0908915B1 (en) 1997-10-08 1998-09-25 Casing for an electrical apparatus such as a circuit breaker

Country Status (7)

Country Link
US (1) US6238254B1 (en)
EP (1) EP0908915B1 (en)
JP (1) JPH11307948A (en)
CN (1) CN1163928C (en)
DE (1) DE69832863T2 (en)
ES (1) ES2252821T3 (en)
FR (1) FR2769404B1 (en)

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DE10061564B4 (en) * 1999-12-13 2007-10-11 Fuji Electric Co., Ltd., Kawasaki Connection unit for multi-pole switch

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PT1191562E (en) * 2000-09-21 2007-12-10 Siemens Ag Small size circuit breaker with universal terminal assembly
DE50014370D1 (en) * 2000-09-21 2007-07-12 Siemens Ag Miniature circuit breaker in slimline design
ITMI20011067A1 (en) * 2001-05-22 2002-11-22 Gewiss Spa DEVICE FOR CONNECTION OF CONDUCTORS TO ELECTRICAL APPLIANCES SUCH AS SWITCHES AND SIMILAR
JP5146549B2 (en) * 2010-02-12 2013-02-20 株式会社デンソー Electronic component housing and terminal connection structure
DE102010033236A1 (en) 2010-07-29 2012-02-02 Siemens Aktiengesellschaft Electric switch
US8759695B2 (en) * 2012-03-08 2014-06-24 Schneider Electric USA, Inc. Compact three-hole lug
CN104332362B (en) * 2014-10-14 2017-02-15 浙江天正电气股份有限公司 Multi-breakpoint built-in connection direct-current circuit breaker
US9859081B2 (en) * 2015-08-13 2018-01-02 Carling Technologies, Inc. Circuit breaker with movable terminal barrier
CN106548908A (en) * 2016-11-10 2017-03-29 厦门宏发开关设备有限公司 A kind of multibreak dc circuit breaker
CN112055493B (en) * 2020-09-07 2021-06-29 广东众科智能科技股份有限公司 Intelligent home controller based on Internet of things
FR3118328B1 (en) * 2020-12-22 2023-11-24 Alstom Transp Tech Electrical contactor of a three-phase electrical power line for a vehicle and vehicle comprising such a contactor

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Also Published As

Publication number Publication date
CN1216391A (en) 1999-05-12
DE69832863T2 (en) 2006-07-06
DE69832863D1 (en) 2006-01-26
EP0908915A1 (en) 1999-04-14
FR2769404B1 (en) 1999-12-24
CN1163928C (en) 2004-08-25
FR2769404A1 (en) 1999-04-09
JPH11307948A (en) 1999-11-05
ES2252821T3 (en) 2006-05-16
US6238254B1 (en) 2001-05-29

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