EP0829890B1 - Multi-pole electric switch with a switch shaft per pole - Google Patents

Multi-pole electric switch with a switch shaft per pole Download PDF

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Publication number
EP0829890B1
EP0829890B1 EP97410099A EP97410099A EP0829890B1 EP 0829890 B1 EP0829890 B1 EP 0829890B1 EP 97410099 A EP97410099 A EP 97410099A EP 97410099 A EP97410099 A EP 97410099A EP 0829890 B1 EP0829890 B1 EP 0829890B1
Authority
EP
European Patent Office
Prior art keywords
switch
pole
switch according
rods
pinion
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
EP97410099A
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German (de)
French (fr)
Other versions
EP0829890A1 (en
Inventor
Robert Morel
Henri Auque
Philippe Hartmann
Denis Vial
Michel Faure
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication date
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Publication of EP0829890A1 publication Critical patent/EP0829890A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
    • 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
    • H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts
    • 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
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action
    • H01H21/42—Driving mechanisms having snap action produced by compression or extension of coil spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing

Definitions

  • the known means of transmission of the mobile contacts of all the poles have either a switching slide movable in translation by means a control mechanism positioned on the lateral side (FR-A-2 530 373), either a common rotary bar actuated by a link of a knee switch.
  • a slide or a rotary support shaft for all moving contacts requires constraints of positioning and architecture, and requires different achievements depending on the four-pole or three-pole type.
  • the object of the invention is to provide a multi-pole switch with mounting fast, using the maximum of standard elements to go from one version tripolar to a four-pole version.
  • each elementary switching bar have a drive tab arranged at the upper end of the stud, and a transmission ring surrounding said tab, and further having two pins inserted in holes in the rods
  • the two actuation rods work respectively in tension and compression following the action of the rods on one of the rings of an intermediate pole.
  • the connecting rods have ends positioned in grooves of a main pinion of the device to sprockets.
  • the main gear is in mechanical connection with a bevel gear by via a return pinion, and a removable operating handle is adaptable either to the main gear or to the bevel gear to ensure front control or side control.
  • the housing is advantageously formed by the superposition of a housing base for compartments of the unipolar modules, of an intermediate casing containing the means for driving the pads and the actuating rods, and a cover positioning of the control mechanism.
  • All unipolar switching bars have identical structures bearing each a mobile double bridge contact formed by two conductive bars parallel crossing lights of the insulating pad, being separated from each other by a predetermined interval, and cooperating on one side with a first fixed contact in connection with one of the connection terminals, and on the opposite side with a second fixed contact in connection with the other connection terminal of each pole.
  • a low-voltage multi-pole electrical switch 10 tension and strong calibers is housed in a box 12 parallelepiped in material molded insulator, formed by the superposition of a base 14, an intermediate casing 16, and a cover 18.
  • the internal volume of the base 14 is subdivided by partitions 20 parallel in several compartments 22, 24, 26, 28 for housing switch modules 30 single-pole arranged side by side in the housing 12.
  • an additional compartment 32 which can be used for placing auxiliaries electric signaling 33 of the open or closed position.
  • the width of the additional compartment 32 is less than that of each compartment 22,24,26,28 of switch modules 30.
  • the single-pole switch modules 30 are identical and constitute the different of the switch 10, which in the example described, is a four-pole switch.
  • Each single-pole switch module 30 includes a switching bar 34 individual rotary equipped with a movable double contact 36 in bridge (figure 6) cooperating with two opposite fixed contacts 38.40 (figure 2 and 4) to create a double current interruption by pole.
  • the rotary switching rod 34 with vertical axis of each pole is formed by a pad 42 of insulating material, provided with a cylindrical end piece 44 at its end lower, and a drive tab 46 at its upper end.
  • End piece 44 is housed in a blind notch 48 of circular section formed in the bottom of the base 14 to constitute a rotating guide member or bearing located in the area median of compartment 22,24,26,28 of the corresponding pole.
  • the height of the stud 42 insulation is slightly greater than the vertical offset between the bottom of base 14 and the horizontal wall 16A of the intermediate casing 16.
  • the drive tab 46 crosses a circular orifice 50 provided in the horizontal wall 16A of the casing 16, and is coupled at each pole to a transmission ring 52, which is provided with two diametrically opposed lugs 54.56.
  • Leg 46 and the ring of transmission 52 constitute the drive means of the bar 34.
  • the elementary switching bars 34 of all the poles extend parallel to each other in a vertical direction perpendicular to the wall 16A, and are staggered at regular intervals, being moved in rotation limited to by means of two actuating rods 58.60 piloted by a mechanism control 62.
  • the two elongated rods 58.60 are positioned parallel between them on the upper face of the horizontal wall 16A of the casing 16, and each has a series of circular holes 64 into which the lugs 54, 56 of the various transmission rings 52.
  • the control mechanism 62 is common to all of the bars 34 of the single-pole modules 30, and is arranged in the cover 18. It comprises a device for double toggle 66 associated with a pinion device 68 with front actuation or lateral.
  • the double toggle device 66 is arranged between two flanges 70, 72 metal parallel to the wall 16A, and is composed of two pivoting 74,76 levers hinged together by means of an intermediate lever 78 ( Figure 1). Both joints of the double toggle joint 66 are crossed without play by two rods of 80.82 parallel links projecting on either side of the flanges 70.72, and finding in contact with a circular sector 83 of the flanges.
  • the extremities upper rods 80,82 are positioned in drive grooves of a main control gear 84, which is rotated by a handle maneuver 86 accessible from the outside.
  • the lower ends of the two connecting rods 80,82 cooperate with two bearing surfaces of an intermediate ring 52 for moving the rods 58.60 according to opposite directions of translation during the change of state of the knee switch 66 operated by the pivoting of the operating handle 86 in the direction of opening or closing.
  • a compression spring 92.94 is threaded on each lever 74.76 of the toggle joint device 66 bearing on the connecting rod 80.82 corresponding.
  • the operating handle 86 is coupled directly to the main pinion 84 after introduction according to arrow F1 through a orifice 96 of the cover 18 (FIG. 5).
  • Lateral control is also possible by coupling the handle maneuver 86 to a bevel gear 98 in the direction of arrow F2. Movement of the bevel gear 98 is transmitted to the main gear 84 by via a return pinion 100.
  • the orifice 96 is free, and allows the adaptation of a position detector (not shown) allowing control visual of the closed or open state of the multi-pole switch 10.
  • the actuation of the electrical signaling auxiliaries 33 is operated at the end of lateral bevel gear 98 rotational stroke thanks to the intervention of a slide 88.
  • the movable double contact 36 of each switching rod 34 comprises two parallel busbars 36A, 36B passing through opposite lights 102 of the pad 42, being separated from each other by a predetermined interval d ( Figure 6).
  • a contact pressure spring 104 is arranged inside the stud 42 extending perpendicular to the bar 36B.
  • the double contact bridge 36 of each pole cooperates on one side with the first fixed contact 38, and on the opposite side with the other fixed contact 40.
  • Each pair of contacts 36,38; 36,40 is associated with an interrupting chamber 106 with sheets of deionization.
  • the two fixed contacts 38.40 of each switch module 30 each extend by a connection pad 108, 110 cooperating respectively with a cage of connection terminal 112,114.
  • the cross-section of the bars 36A, 36B constituting the double movable contact 36 can be cylindrical or rectangular.
  • the operation of the multipole switch 10 according to FIGS. 2 to 5 is as follows: In the closed position illustrated in FIGS. 2 and 4, the fixed contact 38.40 of each pole is inserted between the clamps of the two bars 36A, 36B of the movable double contact 36.
  • the input edge of the fixed contacts 38.40 is advantageously chamfered to facilitate entry of the clamp at the end of the closing stroke.
  • the separation of the contacts for opening the switch is done by rotate the operating handle 86 a quarter of a turn.
  • the rotation of the pinion main 84 causes a change of state of the double toggle device 66, and the opposite translation of the actuating rods 58.60 by the action of the 80.82 rods.
  • the rod 58 is thus moved to the right, while the other rod 60 is biased in the opposite direction to the left.
  • the displacement in translation in opposite directions of the two rods 58.60 takes place in synchronism, and causes a simultaneous rotation of the bars of 34 elementary switching of all poles.
  • the rod 58 works in traction, while a pushing force is exerted on the rod 60 which works in compression during the opening phase of the switch. Mechanical stresses on 58.60 rods are reversed during the closing phase.
  • the same standard elements can be used to make a switch pole.
  • the switching bars 34 are identical, it suffices to replace the 58.60 rods by shorter rods, and make use of a three box unipolar compartments.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Multiple-Way Valves (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

L'invention est Interrupteur électrique multipolaire à boítier parallélépipédique en matériau isolant moulé, renfermant:

  • un mécanisme de commande commun à l'ensemble des pôles pour provoquer l'ouverture et la fermeture de l'interrupteur,
  • une pluralité de modules interrupteurs unipolaires disposés côte à côte dans des compartiments adjacents isolés les uns des autres par des cloisons de séparation, chaque module étant équipé d'un contact mobile en pont coopérant avec une paire de contacts fixes opposés pour engendrer une double interruption du courant par pôle,
  • et des moyens de transmission susceptibles de déplacer simultanément les contacts mobiles de tous les modules interrupteurs par l'action du mécanisme de commande.
The invention is a multi-pole electrical switch with a parallelepiped housing made of molded insulating material, containing:
  • a control mechanism common to all of the poles to cause the switch to open and close,
  • a plurality of single-pole switch modules arranged side by side in adjacent compartments isolated from each other by partition walls, each module being equipped with a movable bridge contact cooperating with a pair of opposite fixed contacts to generate a double interruption of the current per pole,
  • and transmission means capable of simultaneously moving the movable contacts of all the switch modules by the action of the control mechanism.

Les moyens de transmission connus des contacts mobiles de l'ensemble des pôles comportent soit un coulisseau de commutation déplaçable en translation au moyen d'un mécanisme de commande positionné sur le côté latéral (FR-A-2 530 373), soit un barreau commun rotatif actionné par une biellette d'une genouillère. L'usage d'un coulisseau ou d'un arbre rotatif de support de tous les contacts mobiles impose des contraintes de positionnement et d'architecture, et nécessite différentes réalisations selon le type tétrapolaire ou tripolaire.The known means of transmission of the mobile contacts of all the poles have either a switching slide movable in translation by means a control mechanism positioned on the lateral side (FR-A-2 530 373), either a common rotary bar actuated by a link of a knee switch. The use of a slide or a rotary support shaft for all moving contacts requires constraints of positioning and architecture, and requires different achievements depending on the four-pole or three-pole type.

L'objet de l'invention consiste à réaliser un interrupteur multipolaire à montage rapide, utilisant le maximum d'éléments standards pour passer d'une version tripolaire à une version tétrapolaire.The object of the invention is to provide a multi-pole switch with mounting fast, using the maximum of standard elements to go from one version tripolar to a four-pole version.

L'interrupteur selon l'invention est caractérisé en ce que:

  • chaque module interrupteur comporte un barreau de commutation individuel de support du contact mobile, ledit barreau étant formé par un plot isolant rotatif à axe vertical ayant un embout de guidage en rotation à l'une des extrémités, et des moyens d'entraínement à l'extrémité opposée,
  • et une paire de tringles d'actionnement est accouplée mécaniquement aux moyens d'entraínement de la totalité des barreaux de commutation en coopérant avec des tiges de liaison du mécanisme de commande pour assurer un déplacement en translation des tringles selon des sens opposés lors du passage de la position d'ouverture vers la position de fermeture, et vice-versa, lesdites tringles allongées s'étendant parallèlement entre elles dans un plan horizontal perpendiculaire aux différents plots rotatifs.
The switch according to the invention is characterized in that:
  • each switch module comprises an individual switching bar for supporting the movable contact, said bar being formed by a rotary insulating stud with a vertical axis having a tip for guiding in rotation at one of the ends, and means for driving the opposite end,
  • and a pair of actuating rods is mechanically coupled to the drive means of all of the switching bars by cooperating with connecting rods of the control mechanism to ensure a translational movement of the rods in opposite directions during the passage of the open position to the closed position, and vice versa, said elongated rods extending parallel to each other in a horizontal plane perpendicular to the various rotary studs.

Les moyens d'entraínement de chaque barreau de commutation élémentaire comportent une patte d'entraínement agencée à l'extrémité supérieure du plot, et une bague de transmission entourant ladite patte, et ayant de plus deux ergots insérés dans des trous ménagés dans les tringlesThe drive means of each elementary switching bar have a drive tab arranged at the upper end of the stud, and a transmission ring surrounding said tab, and further having two pins inserted in holes in the rods

Selon un mode de réalisation préférentiel, les deux tringles d'actionnement travaillent respectivement en traction et en compression suite à l'action des tiges sur l'une des bagues d'un pôle intermédiaire.According to a preferred embodiment, the two actuation rods work respectively in tension and compression following the action of the rods on one of the rings of an intermediate pole.

Selon une caractéristique de l'invention, les tiges de liaison comportent des extrémités supérieures positionnées dans des gorges d'un pignon principal du dispositif à pignons.According to a characteristic of the invention, the connecting rods have ends positioned in grooves of a main pinion of the device to sprockets.

Le pignon principal se trouve en liaison mécanique avec un pignon conique par l'intermédiaire d'un pignon de renvoi, et une poignée de manoeuvre amovible est adaptable soit au pignon principal, soit au pignon conique pour assurer une commande frontale ou une commande latérale.The main gear is in mechanical connection with a bevel gear by via a return pinion, and a removable operating handle is adaptable either to the main gear or to the bevel gear to ensure front control or side control.

Le boítier est avantageusement formé par la superposition d'une base de logement des compartiments des modules unipolaires, d'un carter intermédiaire renfermant les moyens d'entraínement des plots et les tringles d'actionnement, et d'un capot de positionnement du mécanisme de commande. The housing is advantageously formed by the superposition of a housing base for compartments of the unipolar modules, of an intermediate casing containing the means for driving the pads and the actuating rods, and a cover positioning of the control mechanism.

Tous les barreaux de commutation unipolaires ont des structures identiques portant chacun un double contact mobile en pont formé par deux barres conductrices parallèles traversant des lumières du plot isolant, en étant séparées l'une de l'autre par un intervalle prédéterminé, et coopérant d'un côté avec un premier contact fixe en liaison avec l'une des bornes de connexion, et du côté opposé avec un deuxième contact fixe en liaison avec l'autre borne de connexion de chaque pôle.All unipolar switching bars have identical structures bearing each a mobile double bridge contact formed by two conductive bars parallel crossing lights of the insulating pad, being separated from each other by a predetermined interval, and cooperating on one side with a first fixed contact in connection with one of the connection terminals, and on the opposite side with a second fixed contact in connection with the other connection terminal of each pole.

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 aux dessins annexés, dans lesquels:

  • La figure 1 est une vue en perspective éclatée de l'interrupteur multipolaire selon l'invention;
  • La figure 2 montre une vue en perspective de l'équipage mobile accouplé au mécanisme de commande, le boítier de l'interrupteur n'étant pas représenté;
  • La figure 3 représente une vue en plan de l'interrupteur après retrait du capot et du mécanisme de commande;
  • La figure 4 est une vue en plan de l'interrupteur après retrait du carter intermédiaire;
  • La figure 5 est une vue en coupe verticale de l'interrupteur en position assemblée;
  • La figure 6 représente une vue schématique d'un barreau de commutation unipolaire.
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 in the appended drawings, in which:
  • Figure 1 is an exploded perspective view of the multipole switch according to the invention;
  • Figure 2 shows a perspective view of the moving element coupled to the control mechanism, the switch housing not being shown;
  • Figure 3 shows a plan view of the switch after removing the cover and the control mechanism;
  • Figure 4 is a plan view of the switch after removal of the intermediate housing;
  • Figure 5 is a vertical sectional view of the switch in the assembled position;
  • FIG. 6 represents a schematic view of a unipolar switching rod.

En référence aux figures 1 à 6, un interrupteur électrique multipolaire 10 basse tension et à forts calibres , est logé dans un boítier 12 parallélépipédique en matériau isolant moulé, formé par la superposition d'une base 14, d'un carter 16 intermédiaire, et d'un capot 18.Referring to Figures 1 to 6, a low-voltage multi-pole electrical switch 10 tension and strong calibers, is housed in a box 12 parallelepiped in material molded insulator, formed by the superposition of a base 14, an intermediate casing 16, and a cover 18.

Le volume interne de la base 14 est subdivisé par des cloisons 20 parallèles en plusieurs compartiments 22,24,26,28 pour le logement de modules interrupteurs 30 unipolaires disposés côte à côte dans le boítier 12. A droite du compartiment 28 se trouve un compartiment 32 additionnel pouvant servir à la mise en place d'auxiliaires électriques de signalisation 33 de la position ouvert ou fermé. La largeur du compartiment 32 additionnel est inférieure à celle de chaque compartiment 22,24,26,28 des modules interrupteurs 30.The internal volume of the base 14 is subdivided by partitions 20 parallel in several compartments 22, 24, 26, 28 for housing switch modules 30 single-pole arranged side by side in the housing 12. To the right of compartment 28 is finds an additional compartment 32 which can be used for placing auxiliaries electric signaling 33 of the open or closed position. The width of the additional compartment 32 is less than that of each compartment 22,24,26,28 of switch modules 30.

Les modules interrupteurs 30 unipolaires sont identiques et constituent les différents pôles de l'interrupteur 10, qui dans l'exemple décrit, est un interrupteur tétrapolaire. Chaque module interrupteur 30 unipolaire comporte un barreau de commutation 34 individuel rotatif équipé d'un double contact mobile 36 en pont (figure 6) coopérant avec deux contacts fixes 38,40 opposés (figure 2 et 4) pour créer une double interruption de courant par pôle.The single-pole switch modules 30 are identical and constitute the different of the switch 10, which in the example described, is a four-pole switch. Each single-pole switch module 30 includes a switching bar 34 individual rotary equipped with a movable double contact 36 in bridge (figure 6) cooperating with two opposite fixed contacts 38.40 (figure 2 and 4) to create a double current interruption by pole.

Le barreau de commutation 34 rotatif à axe vertical de chaque pôle est formé par un plot 42 en matériau isolant, pourvu d'un embout 44 cylindrique à son extrémité inférieure, et d'une patte d'entraínement 46 à son extrémité supérieure. L'embout 44 est logé dans une encoche 48 borgne de section circulaire ménagée dans le fond de la base 14 pour constituer un organe de guidage en rotation ou palier situé dans la zone médiane de compartiment 22,24,26,28 du pôle correspondant. La hauteur du plot 42 isolant est légèrement supérieure au décalage vertical entre le fond de la base 14 et la paroi horizontale 16A du carter intermédiaire 16. La patte d'entraínement 46 traverse un orifice 50 circulaire prévu dans la paroi horizontale 16A du carter 16, et est accouplée au niveau de chaque pôle à une bague de transmission 52, laquelle est munie de deux ergots 54,56 diamétralement opposés. La patte 46 et la bague de transmission 52 constituent le moyens d'entraínement du barreau 34.The rotary switching rod 34 with vertical axis of each pole is formed by a pad 42 of insulating material, provided with a cylindrical end piece 44 at its end lower, and a drive tab 46 at its upper end. End piece 44 is housed in a blind notch 48 of circular section formed in the bottom of the base 14 to constitute a rotating guide member or bearing located in the area median of compartment 22,24,26,28 of the corresponding pole. The height of the stud 42 insulation is slightly greater than the vertical offset between the bottom of base 14 and the horizontal wall 16A of the intermediate casing 16. The drive tab 46 crosses a circular orifice 50 provided in the horizontal wall 16A of the casing 16, and is coupled at each pole to a transmission ring 52, which is provided with two diametrically opposed lugs 54.56. Leg 46 and the ring of transmission 52 constitute the drive means of the bar 34.

Les barreaux de commutation 34 élémentaires de tous les pôles s'étendent parallèlement entre eux selon une direction verticale perpendiculaire à la paroi 16A, et sont échelonnées à intervalles réguliers, en étant déplacés en rotation limitée au moyen de deux tringles d'actionnement 58,60 pilotées par un mécanisme de commande 62. Les deux tringles 58,60 allongées sont positionnées parallèlement entre elles sur la face supérieures de la paroi 16A horizontale du carter 16, et comporte chacune une série de trous 64 circulaires dans lesquels pénètrent les ergots 54,56 des différentes bagues de transmission 52. The elementary switching bars 34 of all the poles extend parallel to each other in a vertical direction perpendicular to the wall 16A, and are staggered at regular intervals, being moved in rotation limited to by means of two actuating rods 58.60 piloted by a mechanism control 62. The two elongated rods 58.60 are positioned parallel between them on the upper face of the horizontal wall 16A of the casing 16, and each has a series of circular holes 64 into which the lugs 54, 56 of the various transmission rings 52.

Le mécanisme de commande 62 est commun à l'ensemble des barreaux 34 des modules unipolaires 30, et est disposé dans le capot 18. Il comprend un dispositif à double genouillère 66 associé à un dispositif à pignons 68 à actionnement frontal ou latéral. Le dispositif à double genouillère 66 est agencé entre deux flasques 70,72 métalliques parallèles à la paroi 16A, et est composé de deux leviers 74,76 pivotants articulés entre eux au moyen d'un levier intermédiaire 78 (figure 1). Les deux articulations de la double genouillère 66 sont traversées sans jeu par deux tiges de liaisons 80,82 parallèles faisant saillie de part et d'autre des flasques 70,72, et se trouvant en contact avec un secteur circulaire 83 des flasques. Les extrémités supérieures des tiges 80,82 sont positionnées dans des gorges d'entraínement d'un pignon principal 84 de commande, lequel est actionné en rotation par une poignée de manoeuvre 86 accessible de l'extérieur.The control mechanism 62 is common to all of the bars 34 of the single-pole modules 30, and is arranged in the cover 18. It comprises a device for double toggle 66 associated with a pinion device 68 with front actuation or lateral. The double toggle device 66 is arranged between two flanges 70, 72 metal parallel to the wall 16A, and is composed of two pivoting 74,76 levers hinged together by means of an intermediate lever 78 (Figure 1). Both joints of the double toggle joint 66 are crossed without play by two rods of 80.82 parallel links projecting on either side of the flanges 70.72, and finding in contact with a circular sector 83 of the flanges. The extremities upper rods 80,82 are positioned in drive grooves of a main control gear 84, which is rotated by a handle maneuver 86 accessible from the outside.

Les extrémités inférieures des deux tiges de liaisons 80,82 coopèrent avec deux surfaces d'appui d'une bague 52 intermédiaire pour déplacer les tringles 58,60 selon des sens de translation opposés lors du changement d'état de la genouillère 66 opéré par le pivotement de la poignée de manoeuvre 86 dans le sens de l'ouverture ou de la fermeture. Un ressort 92,94 de compression est enfilé sur chaque levier 74,76 du dispositif à genouillère 66 en prenant appui sur la tige de liaison 80,82 correspondante.The lower ends of the two connecting rods 80,82 cooperate with two bearing surfaces of an intermediate ring 52 for moving the rods 58.60 according to opposite directions of translation during the change of state of the knee switch 66 operated by the pivoting of the operating handle 86 in the direction of opening or closing. A compression spring 92.94 is threaded on each lever 74.76 of the toggle joint device 66 bearing on the connecting rod 80.82 corresponding.

Lors d'une commande frontale, la poignée de manoeuvre 86 est accouplée directement au pignon principal 84 après introduction selon la flèche F1 travers un orifice 96 du capot 18 (figure 5).During a front control, the operating handle 86 is coupled directly to the main pinion 84 after introduction according to arrow F1 through a orifice 96 of the cover 18 (FIG. 5).

Une commande latérale est également possible en accouplant la poignée de manoeuvre 86 à un pignon conique 98 selon le sens de la flèche F2. Le mouvement de rotation du pignon conique 98 est transmis au pignon principal 84 par l'intermédiaire d'un pignon de renvoi 100. Dans ce cas, l'orifice 96 est libre, et permet l'adaptation d'un détecteur de position (non représenté) permettant un contrôle visuel de l'état fermé ou ouvert de l'interrupteur multipolaire 10. Lateral control is also possible by coupling the handle maneuver 86 to a bevel gear 98 in the direction of arrow F2. Movement of the bevel gear 98 is transmitted to the main gear 84 by via a return pinion 100. In this case, the orifice 96 is free, and allows the adaptation of a position detector (not shown) allowing control visual of the closed or open state of the multi-pole switch 10.

L'actionnement des auxiliaires électriques de signalisation 33 est opéré en fin de course de rotation du pignon conique 98 latéral grâce à l'intervention d'un coulisseau 88.The actuation of the electrical signaling auxiliaries 33 is operated at the end of lateral bevel gear 98 rotational stroke thanks to the intervention of a slide 88.

Le double contact mobile 36 de chaque barreau de commutation 34 comprend deux barres conductrices 36A,36B parallèles traversant des lumières 102 opposées du plot 42, en étant séparées l'une de l'autre par un intervalle d prédéterminé (figure 6). Un ressort 104 de pression de contact est agencé à l'intérieur du plot 42 en s'étendant perpendiculairement à la barre 36B.The movable double contact 36 of each switching rod 34 comprises two parallel busbars 36A, 36B passing through opposite lights 102 of the pad 42, being separated from each other by a predetermined interval d (Figure 6). A contact pressure spring 104 is arranged inside the stud 42 extending perpendicular to the bar 36B.

Le double pont de contact 36 de chaque pôle coopère d'un côté avec le premier contact fixe 38, et du côté opposé avec l'autre contact fixe 40. A chaque paire de contacts 36,38;36,40 est associée une chambre de coupure 106 à tôles de désionisation.The double contact bridge 36 of each pole cooperates on one side with the first fixed contact 38, and on the opposite side with the other fixed contact 40. Each pair of contacts 36,38; 36,40 is associated with an interrupting chamber 106 with sheets of deionization.

Les deux contacts fixes 38,40 de chaque module interrupteur 30 se prolongent chacun par une plage de raccordement 108,110 coopérant respectivement avec une cage de borne de connexion 112,114. La section des barres 36A, 36B constitutives du double contact mobile 36 peut être cylindrique ou rectangulaire.The two fixed contacts 38.40 of each switch module 30 each extend by a connection pad 108, 110 cooperating respectively with a cage of connection terminal 112,114. The cross-section of the bars 36A, 36B constituting the double movable contact 36 can be cylindrical or rectangular.

Le fonctionnement de l'interrupteur multipolaire 10 selon les figures 2 à 5 est le suivant:
En position de fermeture illustrée aux figures 2 et 4, le contact fixe 38,40 de chaque pôle est inséré entre les pinces des deux barres 36A, 36B du double contact mobile 36. L'arête d'entrée des contacts fixes 38,40 est avantageusement chanfreinée pour faciliter l'entrée de la pince en fin de course de fermeture.The operation of the multipole switch 10 according to FIGS. 2 to 5 is as follows:
In the closed position illustrated in FIGS. 2 and 4, the fixed contact 38.40 of each pole is inserted between the clamps of the two bars 36A, 36B of the movable double contact 36. The input edge of the fixed contacts 38.40 is advantageously chamfered to facilitate entry of the clamp at the end of the closing stroke.

La séparation des contacts pour l'ouverture de l'interrupteur s'effectue en faisant pivoter la poignée de manoeuvre 86 d'un quart de tour. La rotation du pignon principal 84 provoque un changement d'état du dispositif à double genouillère 66, et la mise en translation opposée des tringles d'actionnement 58,60 par l'action des tiges 80,82. Sur la figure 3, la tringle 58 est ainsi déplacée vers la droite, tandis que l'autre tringle 60 est sollicitée en sens inverse vers la gauche.The separation of the contacts for opening the switch is done by rotate the operating handle 86 a quarter of a turn. The rotation of the pinion main 84 causes a change of state of the double toggle device 66, and the opposite translation of the actuating rods 58.60 by the action of the 80.82 rods. In FIG. 3, the rod 58 is thus moved to the right, while the other rod 60 is biased in the opposite direction to the left.

Le déplacement en translation selon des sens opposés des deux tringles 58,60 s'effectue en synchronisme, et provoque une rotation simultanée des barreaux de commutation 34 élémentaires de tous les pôles. La tringle 58 travaille en traction, alors qu'un effort de poussée est exercé sur la tringle 60 qui travaille en compression lors de la phase d'ouverture de l'interrupteur. Les contraintes mécaniques sur les tringles 58,60 sont inversées pendant la phase de fermeture.The displacement in translation in opposite directions of the two rods 58.60 takes place in synchronism, and causes a simultaneous rotation of the bars of 34 elementary switching of all poles. The rod 58 works in traction, while a pushing force is exerted on the rod 60 which works in compression during the opening phase of the switch. Mechanical stresses on 58.60 rods are reversed during the closing phase.

Au début de la course d'ouverture, l'arc prenant naissance entre les contacts 36,38;36,40 est rapidement éteint grâce à la présence des chambres de coupure 106.At the start of the opening race, the arc between the contacts 36.38; 36.40 is quickly extinguished thanks to the presence of the cutout 106.

Les mêmes éléments standards peuvent être utilisés pour réaliser un interrupteur tripolaire. Les barreaux de commutation 34 sont identiques, il suffit de remplacer les tringles 58,60 par des tringles plus courtes, et de faire usage d'un boítier à trois compartiments unipolaires.The same standard elements can be used to make a switch pole. The switching bars 34 are identical, it suffices to replace the 58.60 rods by shorter rods, and make use of a three box unipolar compartments.

Claims (10)

  1. A multipole electrical switch with a parallelepipedic case (12) made of moulded insulating material, housing:
    an operating mechanism (62) common to the set of poles to bring about opening and closing of the switch (10),
    a plurality of single-pole switch modules (30) arranged side by side in adjacent compartments (22,24,26,28) isolated from one another by separating partitions (20), each module being equipped with a movable contact (36) in the form of a bridge operating in conjunction with a pair of opposite stationary contacts (38,40) to generate a double current interruption per pole,
    and transmission means designed to move the movable contacts (36) of all the switch modules (30) simultaneously by the action of the operating mechanism (62),
    characterized in that:
    each switch module (30) comprises an individual switching bar (34) supporting the movable contact (36), said bar being formed by a vertical-axis rotary insulating stud (42) having an end-piece (44) for guiding in rotation at one of its ends, and driving means (46,52) at the other end,
    and a pair of actuating rods (58,60) is mechanically coupled to the driving means (46,52) of all the switching bars (34) and operates in conjunction with connecting rods (80,82) of the operating mechanism (62) to perform movement of the actuating rods (58,60) in translation in opposite directions when moving from the open position to the closed position and vice-versa, said elongate actuating rods extending parallel to one another in a horizontal plane perpendicular to the different rotary studs (42).
  2. The switch according to claim 1 characterized in that the driving means of each elementary switching bar (34) comprise a driving lug (46) arranged at the upper end of the stud (42), and a transmission ring (52) surrounding said lug (46) and having in addition two pins (54,56) inserted in holes (64) arranged in the actuating rods (58,60).
  3. The switch according to claim 1 or 2 characterized in that the two actuating rods (58,60) work respectively in traction and in compression following the action of the connecting rods (80,82) on one of the rings (52) of an intermediate pole.
  4. The switch according to claim 3 characterized in that the operating mechanism (62) comprises a double toggle device (66) associated to the two connecting rods (80,82), and a pinion device (68) with front or lateral actuation.
  5. The switch according to claim 4 characterized in that the double toggle device (66) is composed of two levers (74,76) articulated on one another at the level of the connecting rods (80,82) by means of an intermediate lever (78), of a pair of fixed flanges (70,72) having a circular section (83) along which the two rods (80,82) move, and of a spring (92,94) threaded onto each pivoting lever (74,76) and bearing on the corresponding connecting rod (80,82).
  6. The switch according to claim 5 characterized in that the connecting rods (80,82) comprise upper ends positioned in gorges of a main pinion (84) of the pinion device (68).
  7. The switch according to claim 6 characterized in that the main pinion (84) is in mechanical connection with a conical pinion (98) by means of a counterpinion (100) and that a removable operating handle (86) can be fitted either to the main pinion (84) or to the conical pinion (98) to achieve front control or lateral control.
  8. The switch according to one of the claims 1 to 7 characterized in that the case (12) is formed by superposition of a base (14) housing the compartments (22,24,26,28) of the single-pole modules, an intermediate housing (16) containing the drive means (46,52) of the studs (42) and the actuating rods (58,60), and a cover (18) for positioning of the operating mechanism (62).
  9. The switch according to one of the claims 1 to 8 characterized in that each switching bar (34) bears a double movable contact (36) arranged as a bridge formed by two parallel conducting bars (36A, 36B) passing through apertures (102) of the insulating stud (42), separated from one another by a preset gap (d) and operating on one side in conjunction with a first stationary contact (38) in connection with one of the connection terminals (112) and on the opposite side with a second stationary contact (40) in connection with the other connection terminal (114) of each pole.
  10. The switch according to claim 7 characterized in that the case (12) contains an additional compartment (32) for housing at least one electrical indication auxiliary (33) for indication of the open or closed position of the contacts of the switch (10), change of state of the auxiliary (33) taking place at the end of rotation travel of the lateral conical pinion (98) by means of an operating slide (88).
EP97410099A 1996-09-16 1997-09-05 Multi-pole electric switch with a switch shaft per pole Expired - Lifetime EP0829890B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9611456 1996-09-16
FR9611456A FR2753563B1 (en) 1996-09-16 1996-09-16 MULTIPOLAR ELECTRIC SWITCH HAVING AN ELEMENTAL SWITCHING BAR BY POLE

Publications (2)

Publication Number Publication Date
EP0829890A1 EP0829890A1 (en) 1998-03-18
EP0829890B1 true EP0829890B1 (en) 2002-11-13

Family

ID=9495904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410099A Expired - Lifetime EP0829890B1 (en) 1996-09-16 1997-09-05 Multi-pole electric switch with a switch shaft per pole

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US (1) US5886311A (en)
EP (1) EP0829890B1 (en)
CN (1) CN1198303C (en)
DE (1) DE69717035T2 (en)
EA (1) EA000359B1 (en)
ES (1) ES2184977T3 (en)
FR (1) FR2753563B1 (en)

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Also Published As

Publication number Publication date
FR2753563B1 (en) 1998-10-16
CN1198303C (en) 2005-04-20
CN1180914A (en) 1998-05-06
FR2753563A1 (en) 1998-03-20
EA199700180A1 (en) 1998-04-30
DE69717035T2 (en) 2003-07-10
US5886311A (en) 1999-03-23
EP0829890A1 (en) 1998-03-18
DE69717035D1 (en) 2002-12-19
ES2184977T3 (en) 2003-04-16
EA000359B1 (en) 1999-06-24

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