EP0208613B1 - Protection switch with interconnected poles - Google Patents

Protection switch with interconnected poles Download PDF

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Publication number
EP0208613B1
EP0208613B1 EP86401476A EP86401476A EP0208613B1 EP 0208613 B1 EP0208613 B1 EP 0208613B1 EP 86401476 A EP86401476 A EP 86401476A EP 86401476 A EP86401476 A EP 86401476A EP 0208613 B1 EP0208613 B1 EP 0208613B1
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EP
European Patent Office
Prior art keywords
pole
case
transmission
pieces
housing
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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
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EP86401476A
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German (de)
French (fr)
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EP0208613A1 (en
Inventor
Patrick Comtois
Luc Moreau
Serge Paggi
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Telemecanique SA
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Telemecanique Electrique SA
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Publication of EP0208613A1 publication Critical patent/EP0208613A1/en
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    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0094—Details of rotatable shafts which are subdivided; details of the coupling means thereof

Definitions

  • the present invention relates to an electrical multipole protection switch comprising for each pole a housing provided with a coupling piece to the neighboring pole or to a juxtaposable additive device.
  • Such coupling is used to transmit from one pole to another, or from one pole to a neighboring device, a mechanical signal for the purpose of tripping and / or signaling in the event of a fault or following an operation. voluntary.
  • Such known multipolar devices generally require, to ensure coupling between the poles, a part or more coupling parts which must be attached by fitting or insertion on or in transmission parts belonging to the triggering mechanisms of the various poles.
  • the object of the invention is in particular to simplify the design and mounting of a protective switch device with couplable poles by using a minimum number of component parts adapted to the different multipolar versions.
  • a multipolar protective switch formed by the assembly of at least two insulating polar cup-shaped housings each having a bottom and an open face, these two housings each containing a switch device comprising a contact opening mechanism including at least one transmission part rotatably mounted inside the housing, by means of two traversing coaxial bearings respectively provided in the two bottoms, the assembly of the two housings being carried out so that the open face of one of the housings either closed by the bottom of the second housing in order to obtain a first closed envelope, of prismatic shape, having a first plane of symmetry, the open face of the second housing being closed, for its part, to obtain a second closed envelope , also prismatic, presenting a second plane of symmetry separated from the first by a so-called polar distance, the transmission part located at the interior of the first housing being coupled to the transmission part located inside the second housing, these two parts extending coaxially to each other, perpendicular to said bottoms.
  • this switch is characterized in that the transmission parts are identical and each have, at its ends, two respective coupling elements, one male, the other female, which have complementary shapes to allow a cooperation by axial fitting of the male coupling element of one of the two transmission parts in the female coupling element of the other transmission part, a first end of each of these parts further having a conformation allowing it to be rotatably mounted in a corresponding bearing, in that the second end of the part housed in the first housing fits into the first end of the part fitted to the second housing, at the level of the bearing provided in the bottom of this second housing, and in that the total width of the switch housing is greater by an x value than a multiple of the pole step, while the length of each transmission part is greater higher than the polar pitch of a value at most equal to x, so that these transmission parts fit into each other without requiring additional parts and without exceeding the external walls of the switch.
  • the protective switch can thus be produced with a small number of constituent parts, namely a polar box forming a bowl which contains the trigger mechanism and its combined transmission and coupling part, intermediate polar boxes of a single type forming as many bowls which contain the triggering mechanisms of the successive poles, and a cover for closing the bowl of the last pole.
  • the assembly of the protective switch is facilitated by the stacking of polar cuvettes of low height and substantially identical, easy to store and to handle manually or automatically.
  • each pole box is equipped with its coupling part before stacking the next pole box, because its coupling part is part of its own mechanism for triggering or opening the contacts.
  • the part or the coupling parts do not protrude out of the lateral partitions of the unipolar or respectively multipolar envelope, and that the male coupling element of a first coupling part is housed in a recess in a lateral partition of the envelope, the dimensions of the recess allowing the housing therein of the female coupling element of a second piece of coupling, coaxial and adjacent to the first.
  • the recess is preferably bordered by at least one bearing surface perpendicular to the axis of the coupling parts to receive a corresponding support collar provided on at least one of the coupling parts.
  • the total width of the switch housing is expected to be slightly greater than a multiple of the pole pitch and the length of each coupling piece is slightly greater than the pole pitch.
  • the switch illustrated in Figure 1 is three-pole; each of the poles P1, P2, P3 includes separable contacts in the event of detection of an electrical fault or in the event of voluntary operation.
  • the triggering and operating mechanisms have not been indicated for the sake of clarity.
  • the switch housing includes for pole P1 an insulating pole-shaped housing A and for poles P2 and P3 insulating pole housings also in the form of bowl B, the housing of pole P3 being closed by an insulating cover C ; it is understood that there is thus associated with each pole a closed prismatic envelope constituted, on the one hand, by a bowl A or B and, on the other hand, as the case may be by the bottom of an adjacent bowl or by the cover C.
  • the partitions of the bowl bottoms A, B and the partition of the cover C have thicknesses denoted e A , e B , e c respectively .
  • the polar housing B differs slightly from the polar housing A in that it has nesting conformations D, while the outer wall of the housing A is smooth.
  • the switch housing has elements (not shown) of attachment to a support such as a rail E or a perforated plate. The mutual fixing of the elements A, B, C is carried out for example by riveting.
  • FIG. 1 shows the planes Yi-Yi, Y2-Y2, Y3-Y3 of symmetry for the terminals and the separable contacts of the poles P1-P3, these planes being distant from each other by the polar pitch P.
  • each polar envelope is housed a combined transmission and coupling part 10.
  • the parts 10 are identical and arranged coaxially along an axis X-X perpendicular to the planes Y-Y.
  • Each part 10 is part of the trigger mechanism of the respective pole; it is rotatably mounted in a bearing 11 formed in a side wall or partition 12A, 12B, 12C and it has at its first end 13 a male coupling element 14 and at its second end 15 a female coupling element 16 in which s 'fits the male element 14 of the adjacent coupling part.
  • Each coupling end 10 emerges in a recess 17 formed in the wall 12A, 12B, 12C.
  • the recess 17 is bordered by at least one support surface 18 perpendicular to the axis XX to receive a corresponding support flange 19 of the part 10.
  • Such support surfaces and flanges can be provided at the two ends of Exhibit 10.
  • the coupling piece 10 has a length 1 which is less than the width L1 (or L2 or L3) of the corresponding polar envelope, but which is greater than the polar pitch P by a value at most equal to x, for example slightly lower by a set j to x. In this way, the coupling pieces 10 of adjacent poles fit together at a depth (x-j) without requiring additional pieces and without protruding from the external walls 12A and 12C to the left and to the right of the switch.
  • FIG. 3 shows a three-pole protective switch which comprises a first column of pivoting coupling pieces 10 coaxial with axis Xi-Xi and a second column of pivoting coupling pieces 20 coaxial with axis X2-X2 parallel to X1- X1.
  • Each part 10 is biased by a fault, magnetic and / or thermal tripping means, to act on a contact carrier 30 pivoting in the Y-Y plane via an intermediate actuating part 31; we see that the part 10 is part of the actuation mechanism of the pole considered.
  • One of the parts 20 can be called up by means of voluntary opening of the contacts and resetting to act on the contact carrier 30 of the pole concerned.
  • the rotary movement of the part 20 is transmitted to a neighboring part 20.
  • the centerpiece 20 belongs to the central pole P2, it controls the slave parts 20 of the side poles P1, P3.
  • the parts 20 are identical to each other and they offer in particular the same characteristics of conformation and length.
  • the recesses 17 associated with the parts 10 and the homologous recesses 32 associated with the parts 20 pass through when they are formed in the internal partitions 12B of the switch. They can be either through ( Figure 1) or blind and delimited by knockouts (Figure 3), to allow coupling to an additive juxtaposable to the switch when they are formed in the external partitions 12A, 12C of l 'light switch.
  • the arrangement adopted for the couplable pole switch requires a minimum number of parts suitable for both the unipolar version and the various multipolar versions: cup A, cup B, cover C, coupling piece 10 for the automatic release and coupling part 20 for voluntary control and reset, without additional connecting parts.
  • each pole box has an open front face
  • a cover whose width is substantially that of the stack.
  • This cover can therefore completely cover the open and projecting front part of the poles; moreover, it supports the voluntary opening and resetting means, for example the switch control button.
  • the polar pitch is preferably a fraction of a normalized width, this fraction being equal to the ratio of two whole numbers chosen so as to make it possible to obtain, whatever the number of poles, a composition of modular devices whose width will be equal to a multiple of the standard width or, in the least favorable cases, will exceed the said multiple by an amount equal to half the standard width.
  • the total width of the switch housing is much greater by a standard half-width W / 2 than an appropriate multiple of the pole pitch.
  • the total width of a box with n poles can alternatively be greater by a standard width W than n times the pole pitch.

Description

La présente invention concerne un interrupteur électrique de protection multipolaire comprenant pour chaque pôle un boîtier muni d'une pièce d'accouplement au pôle voisin ou à un appareil additif juxtaposable. Un tel couplage sert à transmettre d'un pôle à l'autre, ou d'un pôle à un appareil voisin, un signal mécanique dans un but de déclenchement et/ou de signalisation en cas de défaut ou à la suite d'une manceuvre volontaire.The present invention relates to an electrical multipole protection switch comprising for each pole a housing provided with a coupling piece to the neighboring pole or to a juxtaposable additive device. Such coupling is used to transmit from one pole to another, or from one pole to a neighboring device, a mechanical signal for the purpose of tripping and / or signaling in the event of a fault or following an operation. voluntary.

De tels appareils multipolaires connus nécessitent généralement pour assurer le couplage entre les pôles, une pièce ou plusieurs pièces d'accouplement qu'il faut rapporter par emboîtement ou insertion sur ou dans des pièces de transmission appartenant aux mécanismes de déclenchement des divers pôles.Such known multipolar devices generally require, to ensure coupling between the poles, a part or more coupling parts which must be attached by fitting or insertion on or in transmission parts belonging to the triggering mechanisms of the various poles.

Ainsi, dans le brevet FR-A-1 596 145, il est proposé de réaliser un interrupteur unipolaire ou multipolaire comprenant dans sa version unipolaire un boîtier et un couvercle et dans sa version multipolaire un boîtier, des pièces intermédiaires disposées en nombre égal au nombre de pôles souhaité et un couvercle; chaque pôle comporte un levier qui contribue à l'accouplement grâce à un axe commun de montage traversant, cet axe couplant les divers leviers. Il est donc nécessaire de prévoir des axes de différentes longueurs pour accoupler les leviers lors de la fabrication d'interrupteurs à nombres de pôles différents.Thus, in patent FR-A-1,596,145, it is proposed to produce a single-pole or multi-pole switch comprising in its single-pole version a housing and a cover and in its multi-pole version a housing, intermediate parts arranged in number equal to the number of desired poles and a cover; each pole has a lever which contributes to the coupling by means of a common through-mounting axis, this axis coupling the various levers. It is therefore necessary to provide axes of different lengths to couple the levers when manufacturing switches with different numbers of poles.

Par le brevet FR-A-2 105 797 et la demande WO-A-8 404 423, on connait d'autres interrupteurs de protection unipolaires ou multipolaires accouplables. Toutefois, ces interrupteurs ont pour inconvénient d'exiger soit un nombre de pièces élevé pour bâtir les boîtiers et les accouplements de la version unipolaire et des différentes versions multipolaires, soit un encombrement en largeur trop important du boîtier à cause des saillies des pièces d'accouplement.From patent FR-A-2 105 797 and application WO-A-8 404 423, other unipolar or multipolar protective switches are known which can be coupled. However, these switches have the drawback of requiring either a high number of parts to build the housings and the couplings of the unipolar version and of the various multipolar versions, or an excessively large overall dimensions of the housing because of the projections of the parts. coupling.

L'invention a notamment pour but de simplifier la conception et le montage d'un appareil interrupteur de protection à pôles accouplables en utilisant un nombre minimal de pièces constituantes adaptées aux différentes versions multipolaires.The object of the invention is in particular to simplify the design and mounting of a protective switch device with couplable poles by using a minimum number of component parts adapted to the different multipolar versions.

Elle a pour autre but, tout en simplifiant la réalisation d'un tel appareil interrupteur de protection, de conférer à celui-ci une épaisseur minimale entraînant un faible encombrement en largeur et autorisant le cas échéant la réalisation de versions modulaires.It has the other aim, while simplifying the production of such a protective switch device, of giving it a minimum thickness resulting in a small overall width and authorizing, where appropriate, the production of modular versions.

Elle concerne un interrupteur de protection multipolaire formé par l'assemblage d'au moins deux boîtiers polaires isolants en forme de cuvette présentant chacun un fond et une face ouverte, ces deux boîtiers renfermant chacun un dispositif interrupteur comportant un mécanisme d'ouverture des contacts incluant au moins une pièce de transmission montée rotative à l'intérieur du boîtier, grâce à deux paliers coaxiaux traversants respectivement prévus dans les deux fonds, l'assemblage des deux boîtiers étant réalisé de manière à ce que la face ouverte de l'un des boîtiers soit refermée par le fond du deuxième boîtier afin d'obtenir une première enveloppe fermée, de forme prismatique, présentant un premier plan de symétrie, la face ouverte du deuxième boîtier étant, quant à elle, refermée par un couvercle pour obtenir une deuxième enveloppe fermée, également prismatique présentant un deuxième plan de symétrie séparé du premier par une distance dite polaire, la pièce de transmission située à l'intérieur du premier boîtier étant accouplée à la pièce de transmission située à l'intérieur du second boîtier, ces deux pièces s'étendant coaxialement l'une à l'autre, perpendiculairement auxdits fonds.It relates to a multipolar protective switch formed by the assembly of at least two insulating polar cup-shaped housings each having a bottom and an open face, these two housings each containing a switch device comprising a contact opening mechanism including at least one transmission part rotatably mounted inside the housing, by means of two traversing coaxial bearings respectively provided in the two bottoms, the assembly of the two housings being carried out so that the open face of one of the housings either closed by the bottom of the second housing in order to obtain a first closed envelope, of prismatic shape, having a first plane of symmetry, the open face of the second housing being closed, for its part, to obtain a second closed envelope , also prismatic, presenting a second plane of symmetry separated from the first by a so-called polar distance, the transmission part located at the interior of the first housing being coupled to the transmission part located inside the second housing, these two parts extending coaxially to each other, perpendicular to said bottoms.

Selon l'invention, cet interrupteur est caractérisé en ce que les pièces de transmission sont identiques et présentent chacune, à ses extrémités, deux éléments d'accouplement respectifs, l'un mâle, l'autre femelle, qui présentent des formes complémentaires pour permettre une coopération par emboîtement axial de l'élément d'accouplement mâle de l'une des deux pièces de transmission dans l'élément d'accouplement femelle de l'autre pièce de transmission, une première extrémité de chacune de ces pièces présentant en outre une conformation permettant son montage rotatif dans un palier correspondant, en ce que la deuxième extrémité de la pièce logée dans le premier boîtier s'emboîte dans la première extrémité de la pièce équipant le deuxième boîtier, au niveau du palier prévu dans le fond de ce deuxième boîtier, et en ce que la largeur totale du boîtier de l'interrupteur est supérieure d'une valeur x à un multiple du pas polaire, tandis que la longueur de chaque pièce de transmission est supérieure au pas polaire d'une valeur au plus égale à x, de manière à ce que ces pièces de transmission s'emboîtent les unes dans les autres sans nécessiter de pièces additionnelles et sans dépasser les parois externes de l'interrupteur.According to the invention, this switch is characterized in that the transmission parts are identical and each have, at its ends, two respective coupling elements, one male, the other female, which have complementary shapes to allow a cooperation by axial fitting of the male coupling element of one of the two transmission parts in the female coupling element of the other transmission part, a first end of each of these parts further having a conformation allowing it to be rotatably mounted in a corresponding bearing, in that the second end of the part housed in the first housing fits into the first end of the part fitted to the second housing, at the level of the bearing provided in the bottom of this second housing, and in that the total width of the switch housing is greater by an x value than a multiple of the pole step, while the length of each transmission part is greater higher than the polar pitch of a value at most equal to x, so that these transmission parts fit into each other without requiring additional parts and without exceeding the external walls of the switch.

L'interrupteur de protection peut ainsi être réalisé avec un faible nombre de pièces constituantes, à savoir un boîtier polaire formant une cuvette qui contient le mécanisme déclencheur et sa pièce combinée de transmission et d'accouplement, des boîtiers polaires intermédiaires d'un seul type formant autant de cuvettes qui contiennent les mécanismes déclencheurs des pôles successifs, et un couvercle pour fermer la cuvette du dernier pôle. L'assemblage de l'interrupteur de protection est facilité par l'empilage des cuvettes polaires de hauteur faible et sensiblement identique, faciles à stocker et à manipuler de façon manuelle ou automatisée. En particulier, chaque boîtier polaire est équipé de sa pièce d'accouplement avant l'empilage du boîtier polaire suivant, du fait que sa pièce d'accouplement fait partie de sun mécanisme propre de déclenchement ou d'ouverture des contacts.The protective switch can thus be produced with a small number of constituent parts, namely a polar box forming a bowl which contains the trigger mechanism and its combined transmission and coupling part, intermediate polar boxes of a single type forming as many bowls which contain the triggering mechanisms of the successive poles, and a cover for closing the bowl of the last pole. The assembly of the protective switch is facilitated by the stacking of polar cuvettes of low height and substantially identical, easy to store and to handle manually or automatically. In particular, each pole box is equipped with its coupling part before stacking the next pole box, because its coupling part is part of its own mechanism for triggering or opening the contacts.

Il est avantageux que la pièce ou les pièces d'accouplement ne fassent pas saillie hors des cloisons latérales de l'enveloppe unipolaire ou respectivement multipolaire, et que l'élément de couplage mâle d'une première pièce d'accouplement soit logé dans un évidement d'une cloison latérale de l'enveloppe, les dimensions de l'évidement autorisant le logement dans celui-ci de l'élément de couplage femelle d'une deuxième pièce d'accouplement, coaxiale et adjacente à la première. L'évidement est de préférence bordé par au moins une surface d'appui perpendiculaire à l'axe des pièces d'accouplement pour recevoir une collerette d'appui correspondante prévue sur l'une au moins des pièces d'accouplement.It is advantageous that the part or the coupling parts do not protrude out of the lateral partitions of the unipolar or respectively multipolar envelope, and that the male coupling element of a first coupling part is housed in a recess in a lateral partition of the envelope, the dimensions of the recess allowing the housing therein of the female coupling element of a second piece of coupling, coaxial and adjacent to the first. The recess is preferably bordered by at least one bearing surface perpendicular to the axis of the coupling parts to receive a corresponding support collar provided on at least one of the coupling parts.

De préférence, en combinaison avec le fait que la pile de pièces d'accouplement ne dépasse pas du boîtier de l'interrupteur, la largeur totale du boîtier de l'interrupteur est prévue légèrement supérieure à un multiple du pas polaire et la longueur de chaque pièce d'accouplement est légèrement supérieure au pas polaire.Preferably, in combination with the fact that the stack of coupling parts does not protrude from the switch housing, the total width of the switch housing is expected to be slightly greater than a multiple of the pole pitch and the length of each coupling piece is slightly greater than the pole pitch.

La description qui suit d'un mode de réalisation non limitatif en regard des dessins annexés va expliciter d'autres caractéristiques et avantages de l'invention.

  • La figure 1 représente schématiquement en coupe un interrupteur de protection tripolaire conforme à l'invention ;
  • La figure 2 représente une coupe axiale d'une pièce d'accouplement de l'interrupteur ;
  • La figure 3 montre de manière un peu plus détaillée une variante de l'interrupteur de la figure 1.
The following description of a non-limiting embodiment with reference to the appended drawings will explain other characteristics and advantages of the invention.
  • Figure 1 shows schematically in section a three-pole protection switch according to the invention;
  • FIG. 2 represents an axial section of a coupling part of the switch;
  • FIG. 3 shows in a little more detail a variant of the switch of FIG. 1.

L'interrupteur illustré sur la figure 1 est tripolaire ; chacun des pôles P1, P2, P3 comprend des contacts séparables en cas de détection de défaut électrique ou en cas de manoeuvre volontaire. Les mécanismes de déclenchement et de manœuvre n'ont pas été indiqués dans un but de clarté.The switch illustrated in Figure 1 is three-pole; each of the poles P1, P2, P3 includes separable contacts in the event of detection of an electrical fault or in the event of voluntary operation. The triggering and operating mechanisms have not been indicated for the sake of clarity.

Le boîtier de l'interrupteur comprend pour le pôle P1 un boîtier polaire isolant en forme de cuvette A et pour les pôles P2 et P3 des boîtiers polaires isolants également en forme de cuvette B, le boîtier du pôle P3 étant fermé par un couvercle isolant C ; on comprend qu'il est ainsi associé à chaque pôle une enveloppe prismatique fermée constituée, d'une part, par une cuvette A ou B et, d'autre part, selon le cas par le fond d'une cuvette adjacente ou par le couvercle C. Les cloisons des fonds de cuvettes A, B et la cloison du couvercle C ont respectivement des épaisseurs notées eA, eB, ec. Le boîtier polaire B diffère légèrement du boîtier polaire A du fait qu'il présente des conformations d'emboîtement D, tandis que la paroi externe du boîtier A est lisse. Le boîtier de l'interrupteur présente des éléments non représentés de fixation sur un support tel qu'un rail E ou une platine perforée. La fixation mutuelle des éléments A, B, C s'effectue par exemple par rivetage.The switch housing includes for pole P1 an insulating pole-shaped housing A and for poles P2 and P3 insulating pole housings also in the form of bowl B, the housing of pole P3 being closed by an insulating cover C ; it is understood that there is thus associated with each pole a closed prismatic envelope constituted, on the one hand, by a bowl A or B and, on the other hand, as the case may be by the bottom of an adjacent bowl or by the cover C. The partitions of the bowl bottoms A, B and the partition of the cover C have thicknesses denoted e A , e B , e c respectively . The polar housing B differs slightly from the polar housing A in that it has nesting conformations D, while the outer wall of the housing A is smooth. The switch housing has elements (not shown) of attachment to a support such as a rail E or a perforated plate. The mutual fixing of the elements A, B, C is carried out for example by riveting.

En interdépendance avec le pas polaire P et les épaisseurs eA, es, ec des cloisons externes et internes de l'interrupteur, la largeur totale L du boîtier de l'interrupteur est prévue légèrement supérieure à un multiple du pas polaire ; par exemple avec n pôles, L = nP + x.In interdependence with the pole pitch P and the thicknesses e A , e s , e c of the external and internal partitions of the switch, the total width L of the switch housing is provided slightly greater than a multiple of the pole pitch; for example with n poles, L = nP + x.

On a représenté sur la figure 1 les plans Yi-Yi, Y2-Y2, Y3-Y3 de symétrie pour les bornes et les contacts séparables des pôles P1-P3, ces plans étant distants entre eux du pas polaire P.FIG. 1 shows the planes Yi-Yi, Y2-Y2, Y3-Y3 of symmetry for the terminals and the separable contacts of the poles P1-P3, these planes being distant from each other by the polar pitch P.

Dans chaque enveloppe polaire est logée une pièce combinée de transmission et d'accouplement 10. Les pièces 10 sont identiques et disposées coaxialement selon un axe X-X perpendiculaire aux plans Y-Y. Chaque pièce 10 fait partie du mécanisme déclencheur du pôle respectif; elle est montée à rotation dans un palier 11 ménagé dans une paroi ou cloison latérale 12A, 12B, 12C et elle présente à sa première extrémité 13 un élément de couplage mâle 14 et à sa deuxième extrémité 15 un élément de couplage femelle 16 dans lequel s'emboîte l'élément mâle 14 de la pièce d'accouplement adjacente.In each polar envelope is housed a combined transmission and coupling part 10. The parts 10 are identical and arranged coaxially along an axis X-X perpendicular to the planes Y-Y. Each part 10 is part of the trigger mechanism of the respective pole; it is rotatably mounted in a bearing 11 formed in a side wall or partition 12A, 12B, 12C and it has at its first end 13 a male coupling element 14 and at its second end 15 a female coupling element 16 in which s 'fits the male element 14 of the adjacent coupling part.

Chaque extrémité d'accouplement 10 émerge dans un évidement 17 ménagé dans la paroi 12A, 12B, 12C. L'évidement 17 est bordé par au moins une surface d'appui 18 perpendiculaire à l'axe X-X pour recevoir une collerette d'appui correspondante 19 de la pièce 10. De telles surfaces d'appui et collerettes peuvent être prévues aux deux extrémités de la pièce 10.Each coupling end 10 emerges in a recess 17 formed in the wall 12A, 12B, 12C. The recess 17 is bordered by at least one support surface 18 perpendicular to the axis XX to receive a corresponding support flange 19 of the part 10. Such support surfaces and flanges can be provided at the two ends of Exhibit 10.

La pièce d'accouplement 10 présente une longueur 1 qui est inférieure à la largeur L1 (ou L2 ou L3) de l'enveloppe polaire correspondante, mais qui est supérieure au pas polaire P d'une valeur au plus égale à x, par exemple légèrement inférieure d'un jeu j à x. De cette manière, les pièces d'accouplement 10 de pôles adjacents s'emboîtent d'une profondeur (x-j) sans nécessiter de pièces additionnelles et sans dépasser des parois externes 12A et 12C à gauche et à droite de l'interrupteur.The coupling piece 10 has a length 1 which is less than the width L1 (or L2 or L3) of the corresponding polar envelope, but which is greater than the polar pitch P by a value at most equal to x, for example slightly lower by a set j to x. In this way, the coupling pieces 10 of adjacent poles fit together at a depth (x-j) without requiring additional pieces and without protruding from the external walls 12A and 12C to the left and to the right of the switch.

La figure 3 montre un interrupteur de protection tripolaire qui comporte une première colonne de pièces pivotantes d'accouplement 10 coaxiales d'axe Xi-Xi et une deuxième colonne de pièces pivotantes d'accouplement 20 coaxiales d'axe X2-X2 parallèle à X1-X1. Chaque pièce 10 est sollicitée par un moyen de déclenchement sur défaut, magnétique et/ou thermique, pour agir sur un porte-contact 30 pivotant dans le plan Y-Y via une pièce intermédiaire d'actionnement 31 ; on constate que la pièce 10 fait partie du mécanisme d'actionnement du pôle considéré.FIG. 3 shows a three-pole protective switch which comprises a first column of pivoting coupling pieces 10 coaxial with axis Xi-Xi and a second column of pivoting coupling pieces 20 coaxial with axis X2-X2 parallel to X1- X1. Each part 10 is biased by a fault, magnetic and / or thermal tripping means, to act on a contact carrier 30 pivoting in the Y-Y plane via an intermediate actuating part 31; we see that the part 10 is part of the actuation mechanism of the pole considered.

L'une des pièces 20 est sollicitable par un moyen d'ouverture volontaire des contacts et de réarmement pour agir sur le porte-contact 30 du pôle concerné. Le mouvement rotatif de la pièce 20 est transmis à une pièce 20 voisine. Si la pièce maîtresse 20 appartient au pôle central P2, elle commande les pièces esclaves 20 des pôles latéraux P1, P3. Les pièces 20 sont identiques entre elles et elles offrent en particulier les mêmes caractéristiques de conformation et de longueur.One of the parts 20 can be called up by means of voluntary opening of the contacts and resetting to act on the contact carrier 30 of the pole concerned. The rotary movement of the part 20 is transmitted to a neighboring part 20. If the centerpiece 20 belongs to the central pole P2, it controls the slave parts 20 of the side poles P1, P3. The parts 20 are identical to each other and they offer in particular the same characteristics of conformation and length.

Les évidements 17 associés aux pièces 10 et les évidements homologues 32 associés aux pièces 20 sont traversants lorsqu'ils sont ménagés dans les cloisons internes 12B de l'interrupteur. Ils peuvent être soit traversants (figure 1), soit borgnes et délimités par des voiles défonçables (figure 3), pour autoriser l'accouplement à un additif juxtaposable à l'interrupteur lorsqu'ils sont ménagés dans les cloisons externes 12A, 12C de l'interrupteur.The recesses 17 associated with the parts 10 and the homologous recesses 32 associated with the parts 20 pass through when they are formed in the internal partitions 12B of the switch. They can be either through (Figure 1) or blind and delimited by knockouts (Figure 3), to allow coupling to an additive juxtaposable to the switch when they are formed in the external partitions 12A, 12C of l 'light switch.

Il faut noter que la disposition adoptée pour l'interrupteur à pôles accouplables requiert un nombre minimal de pièces convenant aussi bien à la version unipolaire qu'aux différentes versions multipolaires : cuvette A, cuvette B, couvercle C, pièce d'accouplement 10 pour le déclenchement automatique et pièce d'accouplement 20 pour la commande et le réarmement volontaires, sans pièces additionnelles de liaison.It should be noted that the arrangement adopted for the couplable pole switch requires a minimum number of parts suitable for both the unipolar version and the various multipolar versions: cup A, cup B, cover C, coupling piece 10 for the automatic release and coupling part 20 for voluntary control and reset, without additional connecting parts.

Dans le cas où chaque boîtier polaire présente une face avant ouverte, il est intéressant de rapporter sur le boîtier unipolaire ou multipolaire de l'interrupteur un capot dont la largeur est sensiblement celle de l'empilage. Ce capot peut donc recouvrir en totalité la partie avant ouverte et saillante des pôles ; de plus, il supporte le moyen d'ouverture volontaire et de réarmement, par exemple le bouton de commande de l'interrupteur.In the case where each pole box has an open front face, it is advantageous to attach to the single-pole or multi-pole box of the switch a cover whose width is substantially that of the stack. This cover can therefore completely cover the open and projecting front part of the poles; moreover, it supports the voluntary opening and resetting means, for example the switch control button.

On peut ainsi préassembler l'organe de commande sur le capot pour rapporter le tout par encliquetage sur l'avant du boîtier.It is thus possible to pre-assemble the control member on the cover to bring everything together by snapping onto the front of the housing.

Le pas polaire est de préférence une fraction d'une largeur normalisée, cette fraction étant égale au rapport de deux nombres entiers choisis de manière à permettre d'obtenir quel que soit le nombre de pôles une composition d'appareils modulaires dont la largeur sera égale à un multiple de la largeur normalisée ou, dans les cas les moins favorables, excédera ledit multiple d'une quantité égale à la moitié de la largeur normalisée.The polar pitch is preferably a fraction of a normalized width, this fraction being equal to the ratio of two whole numbers chosen so as to make it possible to obtain, whatever the number of poles, a composition of modular devices whose width will be equal to a multiple of the standard width or, in the least favorable cases, will exceed the said multiple by an amount equal to half the standard width.

Exemple 1Example 1

avec une largeur normalisée W = 9 mm, le pas polaire P est de préférence choisi égal à 3/2 W, c'est-à-dire à 13,5 mm et x = L-nP est égal à 4,5 mm. On obtient ainsi la gamme d'appareils suivante :

Figure imgb0001
with a standardized width W = 9 mm, the pole pitch P is preferably chosen equal to 3/2 W, that is to say 13.5 mm and x = L-nP is equal to 4.5 mm. The following range of devices is thus obtained:
Figure imgb0001

Exemple 2Example 2

avec la même largeur normalisée W = 9 mm, le pas polaire est de préférence choisi égal à 5/2 W, c'est-à-dire à 22,5 mm, et x = L - nP est égal à 4,5 mm. On obtient ainsi la gamme d'appareils suivante :

Figure imgb0002
with the same standardized width W = 9 mm, the pole pitch is preferably chosen to be 5/2 W, that is to say 22.5 mm, and x = L - nP is equal to 4.5 mm . The following range of devices is thus obtained:
Figure imgb0002

Il convient d'observer que, dans chaque cas, la largeur totale du boîtier de l'interrupteur est bien supérieure d'une demi-largeur normalisée W/2 à un multiple approprié du pas polaire. La largeur totale d'un boîtier à n pôles peut en variante être supérieure d'une largeur normalisée W à n fois le pas polaire.It should be noted that in each case the total width of the switch housing is much greater by a standard half-width W / 2 than an appropriate multiple of the pole pitch. The total width of a box with n poles can alternatively be greater by a standard width W than n times the pole pitch.

Claims (9)

1. An electric multipole protective switch formed by the assembly of at least two insulating cup- shaped pole cases each having a bottom and an open face said two cases each including a switch device comprising a contact opening mechanism having at least a transmission piece mounted for rotation inside the case by means of two coaxial through bearings provided respectively in the two bottoms, the assembly of the two cases being arranged so that the open face of one of the cases be closed by the bottom of the second case in order to have a first housing which is closed prismatic shaped including a first plane of symmetry the open face of the second case being closed by a cover so as to obtain a second housing which is closed also prismatic-shaped and has a second plane of symmetry separated from the first plane by a so-called pole distance, said transmission piece situated inside the first case being coupled to the transmission piece which is inside the second case, said two pieces extending coaxially with respect to each other and perpendicularly with respect to said bottoms, characterized in that the transmission pieces (10) are identical and each comprise, at both ends, two respective coupling elements, one of which is male (14) and the other female (16), having complementary shapes for allowing a cooperation by axial engagement of the male coupling element (14) of one of said two transmission pieces (10) in the female coupling element (16) of the other transmission piece (10), a first end (15) of each of said pieces (10) further having a structure enabling its mounting for rotation in a corresponding bearing (11) in that the second end (13) of the piece (10) lodged in the first case engages in the first end (15) of the piece provided on the second case, at the level of the bearing (11) provided in the bottom of this second case and in that the total width (L) of the switch case exceeds by a value x a multiple of the pole pitch (P) whereas the length (1) of each transmission piece (10, 20) exceeds the pole pitch by a value - which is at most equal to x so that said transmission pieces (10) engage with each other without requiring additional pieces and without extending beyond the external walls of the switch.
2. The protective switch according to claim 1, characterized in that the pole pitch (P) is equal to a fraction of the standardized width (W) said fraction being equal to the ratio of two whole numbers selected so as to obtain one pole or multipole devices, the case width (L) of which is equal to or exceeds by a standardized half width (W/2) a multiple of the standardized width (W).
3. The protective switch according to one of the preceding claims, characterized in that the total width (L) of a case with n poles of the switch exceeds by a standardized half width (W/2) n times the pole pitch.
4. The protective switch according to one of the preceding claims, characterized in that the total width (L) of a case with n poles of the switch exceeds by a standardized width (W) n times the pole pitch.
5. The protective switch according to claim 1, characterized in that the male coupling element (14) of a first transmission piece (10) is lodged in a recess (17) of a lateral wall of the pole housing, the recess being such that the female coupling element (16) of a second transmission piece (10) coaxial with and adjacent to the first one belonging to an adjacent pole, may be housed therein.
6. The protective switch according to claim 5, characterized in that the recess (17) is edged by at least one bearing surface (18) perpendicular to the axis (X-X) of the transmission pieces (10) for receiving a bearing collar (19) provided on one at least of the transmission pieces (10).
7. The protective switch according to one of the preceding claims, characterized in that it includes a first column of pivoting transmission pieces (10) coupled directly and urgeable in response to a means tripping on a fault and a second column of pivoting transmission pieces (20) coupled directly and urgeable in response to a voluntary opening and resetting means, the two columns of transmission pieces having parallel axes.
8. The protective switch according to one of the preceding claims, characterized in that its case is formed by a stackable structure formed by fitting together successive pole housings (A, B), each pole housing being equipped with its transmission piece (10) before stacking the next pole housing.
9. The protective switch according to one of the preceding claims, characterized in that a cover whose width is substantially that of the single pole or multipole housing of the switch is fixed thereto so as to wholly cover an open and projecting front part of the case and to support a means for voluntary opening and resetting of the switch.
EP86401476A 1985-07-05 1986-07-03 Protection switch with interconnected poles Expired EP0208613B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8510298 1985-07-05
FR8510298A FR2584527B1 (en) 1985-07-05 1985-07-05 PROTECTION SWITCH WITH COUPLABLE POLES

Publications (2)

Publication Number Publication Date
EP0208613A1 EP0208613A1 (en) 1987-01-14
EP0208613B1 true EP0208613B1 (en) 1989-10-11

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EP86401476A Expired EP0208613B1 (en) 1985-07-05 1986-07-03 Protection switch with interconnected poles

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US (1) US4727226A (en)
EP (1) EP0208613B1 (en)
JP (1) JPS6212014A (en)
DE (1) DE3666305D1 (en)
FR (1) FR2584527B1 (en)

Cited By (5)

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EP0309384A1 (en) * 1987-09-23 1989-03-29 Siemens Aktiengesellschaft Multi-pole low-voltage switching device with an insulating case divided into parallel chambers
FR2682530A1 (en) * 1991-10-15 1993-04-16 Merlin Gerin RANGE OF LOW VOLTAGE CIRCUIT BREAKERS WITH MOLDED HOUSING.
EP0561024A1 (en) * 1992-03-18 1993-09-22 Siemens Aktiengesellschaft Installation apparatus with coupling means
WO1993020576A1 (en) * 1992-04-01 1993-10-14 Siemens Aktiengesellschaft Multi-pole low-voltage power switch with a switching shaft
US5451729A (en) * 1993-03-17 1995-09-19 Ellenberger & Poensgen Gmbh Single or multipole circuit breaker

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US5910757A (en) * 1998-03-25 1999-06-08 Square D Company Phase barrier for use in a multiphase circuit breaker
FR2777693B1 (en) * 1998-04-17 2000-05-26 Schneider Electric Ind Sa AUXILIARY SIGNALING OR TRIGGERING UNIT PROVIDED WITH DECORING MEANS
US6064012A (en) * 1999-06-03 2000-05-16 Siemens Energy & Automation, Inc. Common trip bar and trip levers for electric circuit breakers
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309384A1 (en) * 1987-09-23 1989-03-29 Siemens Aktiengesellschaft Multi-pole low-voltage switching device with an insulating case divided into parallel chambers
FR2682530A1 (en) * 1991-10-15 1993-04-16 Merlin Gerin RANGE OF LOW VOLTAGE CIRCUIT BREAKERS WITH MOLDED HOUSING.
EP0538149A1 (en) * 1991-10-15 1993-04-21 Schneider Electric Sa Series of moulded case low voltage circuit breakers
US5298874A (en) * 1991-10-15 1994-03-29 Merlin Gerin Range of molded case low voltage circuit breakers
EP0561024A1 (en) * 1992-03-18 1993-09-22 Siemens Aktiengesellschaft Installation apparatus with coupling means
WO1993020576A1 (en) * 1992-04-01 1993-10-14 Siemens Aktiengesellschaft Multi-pole low-voltage power switch with a switching shaft
US5608365A (en) * 1992-04-01 1997-03-04 Siemens Aktiengesellschaft Multi-pole low-voltage power switch with a switching shaft
US5451729A (en) * 1993-03-17 1995-09-19 Ellenberger & Poensgen Gmbh Single or multipole circuit breaker

Also Published As

Publication number Publication date
FR2584527A1 (en) 1987-01-09
JPS6212014A (en) 1987-01-21
DE3666305D1 (en) 1989-11-16
US4727226A (en) 1988-02-23
FR2584527B1 (en) 1988-04-15
EP0208613A1 (en) 1987-01-14

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