EP0797230A1 - Remote control with geared motor unit with a centrifugal clutch - Google Patents

Remote control with geared motor unit with a centrifugal clutch Download PDF

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Publication number
EP0797230A1
EP0797230A1 EP97410031A EP97410031A EP0797230A1 EP 0797230 A1 EP0797230 A1 EP 0797230A1 EP 97410031 A EP97410031 A EP 97410031A EP 97410031 A EP97410031 A EP 97410031A EP 0797230 A1 EP0797230 A1 EP 0797230A1
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EP
European Patent Office
Prior art keywords
rotor
remote control
control device
bell
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97410031A
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German (de)
French (fr)
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EP0797230B1 (en
Inventor
Michel Effosse
Alain Peccave
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Schneider Electric Industries SAS
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Schneider Electric SE
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Publication date
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Publication of EP0797230A1 publication Critical patent/EP0797230A1/en
Application granted granted Critical
Publication of EP0797230B1 publication Critical patent/EP0797230B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch

Definitions

  • the arrangement of the centrifugal clutch between the motor and the speed reducer requires careful operations of axial alignment of the different elements to avoid any premature wear of the pinions of the speed reducer.
  • the mounting of such a device is complicated.
  • the direction of starting of the motor is random depending on the type of electric motor used. It is conventional for synchronous motors to make use of a non-return pawl to impose a predetermined direction of rotation. Known pawls operate by friction effect, and are subject to premature wear.
  • the object of the invention is to provide a geared motor equipped with a centrifugal clutch with quick and simple assembly.
  • the means for driving the bell comprise a friction lining fixed on the internal lateral surface.
  • the outer periphery of the bell is shaped according to a hooking toothing capable of cooperating with locking means following the stopping of the engine.
  • the rotor is provided with stop means intended to cooperate with a pawl to determine the direction of starting of the engine.
  • the stop means comprise at least one tooth disposed axially opposite the insert and the pawl is articulated on an axis being polarized by a spring on said tooth.
  • the metal insert of the rotor of plastic material is extended by a cylindrical rod, having a semi-spherical end bearing on a flat bottom of the hole, in the inserted position of the rotor in the bell.
  • a remote control module 10 for a circuit breaker block comprises an insulating housing 12 enclosing a geared motor assembly 14 serving as a drive member for a lever 15 associated with a transmission link (not shown) to authorize the opening and closing of the circuit breaker.
  • the operation of the transmission link is described in detail in document FR-A-2699733.
  • the geared motor assembly 14 is equipped with an electric motor 16 with alternating current mechanically coupled to a speed reducer by means of a centrifugal clutch 18.
  • the motor 16 comprises a stator 20 with inductor, and a rotary armature 22 equipped an axis 24 for driving the clutch 18.
  • the reciprocating motor 16 is an asynchronous motor with a random start direction, but any other type of motor can be used.
  • the centrifugal clutch 18 comprises a rotor 26 with two weights 28, 30, capable of spreading radially under the effect of the centrifugal force, the rotor 26 being arranged inside a clutch bell 32 in annular shape.
  • the axis 24 of the motor 16 is fitted into an orifice 34 of an insert 36 of the rotor 26, and stop means 38 are located on the side of the orifice 34, and on the face of the rotor 26 located opposite the motor. 16.
  • the clutch 18 is produced by molding a plastic material, the rotor 26 constituting the driving element, and the bell 32 forming the driven element.
  • the internal lateral surface of the annular bell 32 is coated with a friction lining 40, which cooperates with the ends of the two flyweights 28, 30 of the rotor 26 during the rotation of the motor 16.
  • the abutment means 38 of the rotor 26 include a pair of teeth 42, 44 diametrically opposite with respect to the orifice 34, and intended to cooperate with a pawl 46 to determine the direction of starting of the motor 16.
  • the pawl 46 is articulated on a fixed axis 48 (FIGS. 8 to 10) , and is biased by a spring 50 on the teeth 42, 44 of the stop means 38.
  • the clutch bell 32 is provided with an axial protuberance 52 with a blind hole 54 for housing the insert 36 of the rotor 26.
  • a pinion 56 is arranged on the external cylindrical surface of the protuberance 52 to serve as an organ d drive of the speed reducer.
  • the outer periphery of the bell 32 has a hooking toothing 58 capable of cooperating with a locking lever 60 (FIG. 1) pivotally mounted on an axis 62 between a locking position. , and an unlocking position.
  • the locking lever 60 is actuated between the locking and unlocking positions by means of an electromagnet 64, the excitation of which occurs at the end of the closing stroke following the stopping of the motor 16.
  • the metal insert 36 of the plastic rotor 26 is extended by a cylindrical rod 66 having a semi-spherical end 68 constituting a ball, which bears on the flat bottom of the hole 54 in the inserted position of the rotor 26 in the bell 32.
  • the coming into axial engagement of the rod 66 of the insert 36 on the bottom of the hole 54 takes place at a contact point, so as to reduce the frictional forces during the rotation of the rotor 26.
  • a polarization blade 70 ( Figure 1) made of elastic flexible material, is fixed on a stud 72 of the cover of the housing 12, and its opposite end bears on the protuberance 52 of the bell 32 to suppress all the mechanical vibrations that may be generated during the rotation of the centrifugal clutch 18.
  • the clutch bell 32 fulfills a first coupling function when the counterweights 28, 30 come into contact with the friction lining 40, a second support function for the pinion gear 56 of the speed reducer, and a third stop function by the action of the locking lever 60 on the hooking toothing 58 during the excitation of the electromagnet 64.
  • the insert 36 of the rotor 26 serves as a cantilever support for the bell 32 of the clutch and of the guiding member in rotation of the pinion 56.
  • the teeth 42, 44 of the abutment means 38 of the rotor 26 cooperate with the pawl 46 to serve as a unidirectional starting member for the rotary motor 16.
  • FIG. 8 represents the centrifugal clutch in the inactive position during the stopping of the engine 16.
  • the counterweights 28, 30 remain stationary and separated from the friction lining 40 by a radial clearance.
  • the pawl 46 is supported on one of the teeth 42, 44 by the action of the associated spring 50.
  • the motor 16 when powered, has a random start direction.
  • the teeth 42, 44 of the abutment means 38 push the pawl 46 against the elastic force of the spring 50, allowing the rotation of the rotor 26 , and the radial spacing of the counterweights 28, 30 against the lining 40 under the effect of centrifugal force.
  • the clutch bell 32 is then rotated, as is the pinion 56 of the speed reducer.
  • the action of the elastic blade 70 on the protuberance 52 of the bell 32 allows regular rotation of the clutch 26, and eliminates any mechanical vibration.
  • the motor 16 starts in the undesired direction (FIG. 10)
  • one of the teeth 42, 44 of the rotor 26 abuts against the end of the pawl 46. This results in a mechanical shock which instantly stops the rotor 26, and starts the motor 16 in the other direction of rotation.
  • the electromagnet 64 is excited simultaneously with the interruption of the supply to the motor 16, causing the clutch 18 and the speed reducer to stop.

Landscapes

  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The remote control device includes a reducer motor which has a container (12) with a lower reducer motor assembly (14) and an upper electric motor (16). The unit is remotely operated to provide open and closed positions for the circuit breaker. A centrifugal gearing (18) mechanically connects to two units. It consists of a rotating section (26) engaging the upper and lower sections and a static sleeve section (52) into which it fits. The centrifugal gearing protrusion (36) slots into the sleeve section.

Description

L'invention est relative à un dispositif de télécommande pour appareillage électrique, notamment un disjoncteur électrique, comprenant :

  • un ensemble motoréducteur à moteur électrique associé à un réducteur de vitesse pour entraîner des moyens de transmission entre une position de fermeture et une position d'ouverture des contacts de l'appareillage,
  • et un embrayage centrifuge agencé entre le moteur et le réducteur de vitesse.
The invention relates to a remote control device for electrical equipment, in particular an electrical circuit breaker, comprising:
  • a gearmotor assembly with an electric motor associated with a speed reducer for driving transmission means between a closed position and an open position of the switchgear contacts,
  • and a centrifugal clutch arranged between the motor and the speed reducer.

Dans un dispositif connu, l'agencement de l'embrayage centrifuge entre le moteur et le réducteur de vitesse nécessite des opérations minutieuses d'alignement axial des différents éléments pour éviter toute usure prématurée des pignons du réducteur de vitesse. Le montage d'un tel dispositif est compliqué. D'autre part, le sens de démarrage du moteur est aléatoire en fonction du type de moteur électrique utilisé. Il est classique pour des moteurs synchrones de faire usage d'un cliquet anti-retour pour imposer un sens de rotation prédéterminé. Les cliquets connus fonctionnent par effet de friction, et sont soumis à une usure prématurée.
L'objet de l'invention consiste à réaliser un motoréducteur équipé d'un embrayage centrifuge à montage rapide et simple.In a known device, the arrangement of the centrifugal clutch between the motor and the speed reducer requires careful operations of axial alignment of the different elements to avoid any premature wear of the pinions of the speed reducer. The mounting of such a device is complicated. On the other hand, the direction of starting of the motor is random depending on the type of electric motor used. It is conventional for synchronous motors to make use of a non-return pawl to impose a predetermined direction of rotation. Known pawls operate by friction effect, and are subject to premature wear.
The object of the invention is to provide a geared motor equipped with a centrifugal clutch with quick and simple assembly.

Le dispositif de télécommande selon l'invention est caractérisé en ce que l'embrayage comporte :

  • un rotor à masselottes constituant l'élément menant équipé d'un insert saillant de forme tubulaire, dans lequel est emmanché l'axe rotatif du moteur,
  • une cloche formant l'élément mené, lequel est séparé du rotor par un intervalle annulaire, et comprenant des moyens d'entraînement coopérant avec les masselottes sous l'effet de la force centrifuge,
  • et une protubérance axiale solidaire de la cloche, et ayant un trou borgne pour le logement en porte-à-faux de l'insert du rotor, la surface latérale externe de ladite protubérance étant pourvue d'un pignon de commande du réducteur de vitesse.
The remote control device according to the invention is characterized in that the clutch comprises:
  • a flywheel rotor constituting the driving element equipped with a protruding insert of tubular shape, in which the rotary axis of the motor is fitted,
  • a bell forming the driven element, which is separated from the rotor by an annular gap, and comprising drive means cooperating with the flyweights under the effect of centrifugal force,
  • and an axial protuberance integral with the bell, and having a blind hole for the cantilevered housing of the rotor insert, the external lateral surface of said protuberance being provided with a speed reducer control pinion.

Selon un mode de réalisation préférentiel, les moyens d'entraînement de la cloche comportent une garniture de friction fixée sur la surface latérale interne.
La périphérie externe de la cloche est conformée selon une denture d'accrochage apte à coopérer avec des moyens de blocage suite à l'arrêt du moteur.According to a preferred embodiment, the means for driving the bell comprise a friction lining fixed on the internal lateral surface.
The outer periphery of the bell is shaped according to a hooking toothing capable of cooperating with locking means following the stopping of the engine.

Selon une caractéristique de l'invention, le rotor est doté de moyens de butée destinés à coopérer avec un cliquet pour déterminer le sens de démarrage du moteur.According to a characteristic of the invention, the rotor is provided with stop means intended to cooperate with a pawl to determine the direction of starting of the engine.

Les moyens de butée comportent au moins une dent disposée axialement à l'opposé de l'insert et que le cliquet est articulé sur un axe en étant polarisé par un ressort sur ladite dent.The stop means comprise at least one tooth disposed axially opposite the insert and the pawl is articulated on an axis being polarized by a spring on said tooth.

Selon une autre caractéristique de l'invention, l'insert métallique du rotor en matériau plastique, est prolongé par une tige cylindrique, ayant un bout semi-sphérique prenant appui sur un fond plat du trou, en position insérée du rotor dans la cloche.According to another characteristic of the invention, the metal insert of the rotor of plastic material is extended by a cylindrical rod, having a semi-spherical end bearing on a flat bottom of the hole, in the inserted position of the rotor in the bell.

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 élévation, partiellement arrachée du dispositif de télécommande à motoréducteur selon l'invention ;
  • la figure 2 montre une vue en coupe selon la ligne 2-2 de la figure 1 ;
  • la figure 3 est une vue en élévation de l'organe mené de l'embrayage centrifuge de la figure 2 ;
  • la figure 4 est une vue en coupe selon la ligne 4-4 de la figure 3 ;
  • la figure 5 est une vue en élévation de l'organe menant de l'embrayage centrifuge de la figure 2 ;
  • la figure 6 est une vue en coupe selon la ligne 6-6 de la figure 5 ;
  • la figure 7 représente une vue en perspective de l'embrayage centrifuge de la figure 2 ;
  • les figures 8-10 montrent des vues schématiques de l'embrayage, respectivement dans la position stable du rotor, lors du fonctionnement normal du moteur tournant dans le bon sens, et lors du démarrage du moteur à l'envers.
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 elevational view, partially broken away of the geared motor remote control device according to the invention;
  • Figure 2 shows a sectional view along line 2-2 of Figure 1;
  • Figure 3 is an elevational view of the driven member of the centrifugal clutch of Figure 2;
  • Figure 4 is a sectional view along line 4-4 of Figure 3;
  • Figure 5 is an elevational view of the drive member of the centrifugal clutch of Figure 2;
  • Figure 6 is a sectional view along line 6-6 of Figure 5;
  • Figure 7 shows a perspective view of the centrifugal clutch of Figure 2;
  • Figures 8-10 show schematic views of the clutch, respectively in the stable position of the rotor, during normal operation of the engine rotating in the right direction, and when starting the engine upside down.

En référence aux figures 1 et 2, un module de télécommande 10 pour un bloc disjoncteur (non représenté), comporte un boîtier 12 isolant renfermant un ensemble motoréducteur 14 servant d'organe d'entraînement à une manette 15 associée à une biellette de transmission (non représentée) pour autoriser l'ouverture et la fermeture du disjoncteur.
Le fonctionnement de la biellette de transmission est décrit en détail dans le document FR-A-2699733.
L'ensemble motoréducteur 14 est équipé d'un moteur électrique 16 à courant alternatif accouplé mécaniquement à un réducteur de vitesse par l'intermédiaire d'un embrayage centrifuge 18. Le moteur 16 comporte un stator 20 à inducteur, et un induit 22 rotatif équipé d'un axe 24 d'entraînement de l'embrayage 18. Le moteur alternatif 16 est un moteur asynchrone à sens de démarrage aléatoire, mais tout autre type de moteur peut être utilisé.With reference to FIGS. 1 and 2, a remote control module 10 for a circuit breaker block (not shown), comprises an insulating housing 12 enclosing a geared motor assembly 14 serving as a drive member for a lever 15 associated with a transmission link ( not shown) to authorize the opening and closing of the circuit breaker.
The operation of the transmission link is described in detail in document FR-A-2699733.
The geared motor assembly 14 is equipped with an electric motor 16 with alternating current mechanically coupled to a speed reducer by means of a centrifugal clutch 18. The motor 16 comprises a stator 20 with inductor, and a rotary armature 22 equipped an axis 24 for driving the clutch 18. The reciprocating motor 16 is an asynchronous motor with a random start direction, but any other type of motor can be used.

Sur les figures 3 à 7, l'embrayage 18 centrifuge comprend un rotor 26 à deux masselottes 28, 30, susceptibles de s'écarter radialement sous l'effet de la force centrifuge, le rotor 26 étant agencé à l'intérieur d'une cloche 32 d'embrayage de forme annulaire. L'axe 24 du moteur 16 est emmanché dans un orifice 34 d'un insert 36 du rotor 26, et des moyens de butée 38 se trouvent du côté de l'orifice 34, et sur la face du rotor 26 située en regard du moteur 16.
L'embrayage 18 est réalisé par moulage d'un matériau plastique, le rotor 26 constituant l'élément menant, et la cloche 32 formant l'élément mené. La surface latérale interne de la cloche 32 annulaire est revêtue par une garniture de friction 40, laquelle coopère avec les extrémités des deux masselottes 28, 30 du rotor 26 lors de la rotation du moteur 16. Les moyens de butée 38 du rotor 26 comportent une paire de dents 42, 44 diamétralement opposées par rapport à l'orifice 34, et destinées à coopérer avec un cliquet 46 pour déterminer le sens de démarrage du moteur 16. Le cliquet 46 est articulé sur un axe fixe 48 (figures 8 à 10), et est polarisé par un ressort 50 sur les dents 42, 44 des moyens de butée 38.In FIGS. 3 to 7, the centrifugal clutch 18 comprises a rotor 26 with two weights 28, 30, capable of spreading radially under the effect of the centrifugal force, the rotor 26 being arranged inside a clutch bell 32 in annular shape. The axis 24 of the motor 16 is fitted into an orifice 34 of an insert 36 of the rotor 26, and stop means 38 are located on the side of the orifice 34, and on the face of the rotor 26 located opposite the motor. 16.
The clutch 18 is produced by molding a plastic material, the rotor 26 constituting the driving element, and the bell 32 forming the driven element. The internal lateral surface of the annular bell 32 is coated with a friction lining 40, which cooperates with the ends of the two flyweights 28, 30 of the rotor 26 during the rotation of the motor 16. The abutment means 38 of the rotor 26 include a pair of teeth 42, 44 diametrically opposite with respect to the orifice 34, and intended to cooperate with a pawl 46 to determine the direction of starting of the motor 16. The pawl 46 is articulated on a fixed axis 48 (FIGS. 8 to 10) , and is biased by a spring 50 on the teeth 42, 44 of the stop means 38.

La cloche 32 d'embrayage est dotée d'une protubérance 52 axiale à trou 54 borgne pour le logement de l'insert 36 du rotor 26. Un pignon 56 est agencé sur la surface cylindrique extérieure de la protubérance 52 pour servir d'organe d'entraînement du réducteur de vitesse.
A l'opposé de la garniture de friction 40, la périphérie externe de la cloche 32 comporte une denture d'accrochage 58 apte à coopérer avec un levier de blocage 60 (figure 1) monté à pivotement sur un axe 62 entre une position de verrouillage, et une position de déverrouillage. L'actionnement du levier de blocage 60 entre les positions de verrouillage et de déverrouillage s'effectue au moyen d'un électro-aimant 64, dont l'excitation intervient en fin de course de fermeture suite à l'arrêt du moteur 16.
L'insert 36 métallique du rotor 26 en plastique se prolonge par une tige 66 cylindrique ayant un bout 68 semi-sphérique constituant une rotule, laquelle prend appui sur le fond plat du trou 54 en position insérée du rotor 26 dans la cloche 32. La venue en engagement axial de la tige 66 de l'insert 36 sur le fond du trou 54 s'effectue selon un point de contact, de manière à réduire les forces de frottement lors de la rotation du rotor 26. Une lame de polarisation 70 (figure 1) en matériau souple élastique, est fixée sur un plot 72 du couvercle du boîtier 12, et son extrémité opposée prend appui sur la protubérance 52 de la cloche 32 pour supprimer toutes les vibrations mécaniques susceptibles d'être engendrées lors de la rotation de l'embrayage centrifuge 18.
La cloche 32 d'embrayage remplit une première fonction d'accouplement lors de la venue en contact des masselottes 28, 30 contre la garniture de friction 40, une deuxième fonction de support du pignon 56 d'entraînement de réducteur de vitesse, et une troisième fonction d'arrêt par l'action du levier de blocage 60 sur la denture d'accrochage 58 lors de l'excitation de l'électro-aimant 64.
L'insert 36 du rotor 26 sert de support en porte-à-faux pour la cloche 32 d'embrayage et d'organe de guidage en rotation du pignon 56. Les dents 42, 44 des moyens de butée 38 du rotor 26 coopèrent avec le cliquet 46 pour servir d'organe de démarrage unidirectionnel du moteur 16 rotatif.
La figure 8 représente l'embrayage centrifuge en position inactive pendant l'arrêt du moteur 16.The clutch bell 32 is provided with an axial protuberance 52 with a blind hole 54 for housing the insert 36 of the rotor 26. A pinion 56 is arranged on the external cylindrical surface of the protuberance 52 to serve as an organ d drive of the speed reducer.
Opposite the friction lining 40, the outer periphery of the bell 32 has a hooking toothing 58 capable of cooperating with a locking lever 60 (FIG. 1) pivotally mounted on an axis 62 between a locking position. , and an unlocking position. The locking lever 60 is actuated between the locking and unlocking positions by means of an electromagnet 64, the excitation of which occurs at the end of the closing stroke following the stopping of the motor 16.
The metal insert 36 of the plastic rotor 26 is extended by a cylindrical rod 66 having a semi-spherical end 68 constituting a ball, which bears on the flat bottom of the hole 54 in the inserted position of the rotor 26 in the bell 32. The coming into axial engagement of the rod 66 of the insert 36 on the bottom of the hole 54 takes place at a contact point, so as to reduce the frictional forces during the rotation of the rotor 26. A polarization blade 70 ( Figure 1) made of elastic flexible material, is fixed on a stud 72 of the cover of the housing 12, and its opposite end bears on the protuberance 52 of the bell 32 to suppress all the mechanical vibrations that may be generated during the rotation of the centrifugal clutch 18.
The clutch bell 32 fulfills a first coupling function when the counterweights 28, 30 come into contact with the friction lining 40, a second support function for the pinion gear 56 of the speed reducer, and a third stop function by the action of the locking lever 60 on the hooking toothing 58 during the excitation of the electromagnet 64.
The insert 36 of the rotor 26 serves as a cantilever support for the bell 32 of the clutch and of the guiding member in rotation of the pinion 56. The teeth 42, 44 of the abutment means 38 of the rotor 26 cooperate with the pawl 46 to serve as a unidirectional starting member for the rotary motor 16.
FIG. 8 represents the centrifugal clutch in the inactive position during the stopping of the engine 16.

Les masselottes 28, 30 restent immobiles et séparées de la garniture de friction 40 par un jeu radial. Le cliquet 46 se trouve en appui sur l'une des dents 42, 44 grâce à l'action du ressort 50 associé.The counterweights 28, 30 remain stationary and separated from the friction lining 40 by a radial clearance. The pawl 46 is supported on one of the teeth 42, 44 by the action of the associated spring 50.

Le moteur 16, lorsqu'il est alimenté, possède un sens de démarrage aléatoire. En cas de démarrage dans le sens trigonométrique (figure 9) , correspondant au sens souhaité, les dents 42, 44 des moyens de butée 38 repoussent le cliquet 46 à l'encontre de la force élastique du ressort 50, autorisant la rotation du rotor 26, et l'écartement radial des masselottes 28, 30 contre la garniture 40 sous l'effet de la force centrifuge. La cloche 32 d'embrayage est alors entraînée en rotation, ainsi que le pignon 56 du réducteur de vitesse. L'action de la lame 70 élastique sur la protubérance 52 de la cloche 32 permet une rotation régulière de l'embrayage 26, et supprime toute vibration mécanique.
Lorsque le moteur 16 démarre dans le sens non souhaité (figure 10), l'une des dents 42, 44 du rotor 26 vient buter contre l'extrémité du cliquet 46. Il en résulte un choc mécanique qui stoppe instantanément le rotor 26, et fait repartir le moteur 16 dans l'autre sens de rotation.The motor 16, when powered, has a random start direction. In the event of starting in the trigonometric direction (FIG. 9), corresponding to the desired direction, the teeth 42, 44 of the abutment means 38 push the pawl 46 against the elastic force of the spring 50, allowing the rotation of the rotor 26 , and the radial spacing of the counterweights 28, 30 against the lining 40 under the effect of centrifugal force. The clutch bell 32 is then rotated, as is the pinion 56 of the speed reducer. The action of the elastic blade 70 on the protuberance 52 of the bell 32 allows regular rotation of the clutch 26, and eliminates any mechanical vibration.
When the motor 16 starts in the undesired direction (FIG. 10), one of the teeth 42, 44 of the rotor 26 abuts against the end of the pawl 46. This results in a mechanical shock which instantly stops the rotor 26, and starts the motor 16 in the other direction of rotation.

En fin de course de fermeture du disjoncteur s'opère l'excitation de l'électro-aimant 64 simultanément avec l'interruption de l'alimentation du moteur 16, provoquant l'arrêt de l'embrayage 18 et du réducteur de vitesse.At the end of the circuit breaker closing stroke, the electromagnet 64 is excited simultaneously with the interruption of the supply to the motor 16, causing the clutch 18 and the speed reducer to stop.

Claims (7)

Dispositif de télécommande pour appareillage électrique, notamment un disjoncteur électrique, comprenant : - un ensemble motoréducteur (14) à moteur électrique (16) associé à un réducteur de vitesse pour entraîner des moyens de transmission entre une position de fermeture et une position d'ouverture des contacts de l'appareillage, - et un embrayage (18) centrifuge agencé entre le moteur (16) et le réducteur de vitesse, caractérisé en ce que l'embrayage (18) comporte : - un rotor (26) à masselottes (28, 30) constituant l'élément menant équipé d'un insert (36) saillant de forme tubulaire, dans lequel est emmanché l'axe (24) rotatif du moteur (16), - une cloche (32) formant l'élément mené, lequel est séparé du rotor (26) par un intervalle annulaire, et comprenant des moyens d'entraînement coopérant avec les masselottes (28, 30) sous l'effet de la force centrifuge, - et une protubérance (52) axiale solidaire de la cloche (32), et ayant un trou 54 borgne pour le logement en porte-à-faux de l'insert (36) du rotor (26), la surface latérale externe de ladite protubérance (52) étant pourvue d'un pignon (56) de commande du réducteur de vitesse. Remote control device for electrical equipment, in particular an electrical circuit breaker, comprising: a geared motor assembly (14) with an electric motor (16) associated with a speed reducer for driving transmission means between a closed position and an open position of the contacts of the switchgear - And a centrifugal clutch (18) arranged between the motor (16) and the speed reducer, characterized in that the clutch (18) comprises: - a rotor (26) with counterweights (28, 30) constituting the driving element equipped with a projecting insert (36) of tubular shape, in which the rotary axis (24) of the motor (16) is fitted, - a bell (32) forming the driven element, which is separated from the rotor (26) by an annular gap, and comprising drive means cooperating with the flyweights (28, 30) under the effect of centrifugal force, - And an axial protuberance (52) integral with the bell (32), and having a blind hole 54 for the cantilevered housing of the insert (36) of the rotor (26), the external lateral surface of said protuberance (52) being provided with a pinion (56) for controlling the speed reducer. Dispositif de télécommande selon la revendication 1, caractérisé en ce que les moyens d'entraînement de la cloche (32) comportent une garniture de friction (40) fixée sur la surface latérale interne.Remote control device according to claim 1, characterized in that the bell drive means (32) comprise a friction lining (40) fixed on the internal lateral surface. Dispositif de télécommande selon la revendication 1, caractérisé en ce que la périphérie externe de la cloche (32) est conformée selon une denture (58) d'accrochage apte à coopérer avec des moyens de blocage suite à l'arrêt du moteur (16).Remote control device according to claim 1, characterized in that the external periphery of the bell (32) is shaped according to a hooking toothing (58) capable of cooperating with blocking means following the stopping of the engine (16) . Dispositif de télécommande selon la revendication 1, caractérisé en ce que le rotor (26) est doté de moyens de butée (38) destinés à coopérer avec un cliquet (46) pour déterminer le sens de démarrage du moteur (16).Remote control device according to claim 1, characterized in that the rotor (26) is provided with stop means (38) intended to cooperate with a pawl (46) to determine the direction of starting of the motor (16). Dispositif de télécommande selon la revendication 4, caractérisé en ce que les moyens de butée (38) comportent au moins une dent (42, 44) disposée axialement à l'opposé de l'insert (36) et que le cliquet (46) est articulé sur un axe (48) en étant polarisé par un ressort (50) sur ladite dent.Remote control device according to claim 4, characterized in that the stop means (38) comprise at least one tooth (42, 44) disposed axially opposite the insert (36) and that the pawl (46) is articulated on an axis (48) being polarized by a spring (50) on said tooth. Dispositif de télécommande selon la revendication 1, caractérisé en ce que l'insert (36) métallique du rotor (26) en matériau plastique, est prolongé par une tige (66) cylindrique, ayant un bout (68) semi-sphérique prenant appui sur un fond plat du trou (54), en position insérée du rotor (26) dans la cloche (32).Remote control device according to claim 1, characterized in that the metal insert (36) of the rotor (26) of plastic material, is extended by a cylindrical rod (66), having a semi-spherical end (68) bearing on a flat bottom of the hole (54), in the inserted position of the rotor (26) in the bell (32). Dispositif de télécommande selon la revendication 6, caractérisé en ce qu'un moyen de polarisation (70), notamment en forme de lame souple élastique, sollicite la protubérance (52) en appui sur la tige (66) pour supprimer toutes vibrations mécaniques lors de la rotation de l'embrayage (18) centrifuge.Remote control device according to claim 6, characterized in that a polarization means (70), in particular in the form of an elastic flexible blade, biases the protuberance (52) bearing on the rod (66) to suppress any mechanical vibrations during the rotation of the centrifugal clutch (18).
EP19970410031 1996-03-18 1997-03-12 Remote control with geared motor unit with a centrifugal clutch Expired - Lifetime EP0797230B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603553A FR2746210B1 (en) 1996-03-18 1996-03-18 REMOTE CONTROL DEVICE WITH GEAR MOTOR EQUIPPED WITH A CENTRIFUGAL CLUTCH
FR9603553 1996-03-18

Publications (2)

Publication Number Publication Date
EP0797230A1 true EP0797230A1 (en) 1997-09-24
EP0797230B1 EP0797230B1 (en) 2002-06-05

Family

ID=9490416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970410031 Expired - Lifetime EP0797230B1 (en) 1996-03-18 1997-03-12 Remote control with geared motor unit with a centrifugal clutch

Country Status (4)

Country Link
EP (1) EP0797230B1 (en)
DE (1) DE69712960T2 (en)
ES (1) ES2176648T3 (en)
FR (1) FR2746210B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028565A1 (en) * 1998-11-10 2000-05-18 Tyco Electronics Logistics Ag Actuator for remote operation of a circuit breaker
CN102194580A (en) * 2010-03-18 2011-09-21 西门子公司 Drive apparatus and electric switch with such a drive apparatus
CN104505275A (en) * 2014-12-23 2015-04-08 莫文艺 Control device for switching mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH142573A (en) * 1929-11-23 1930-09-30 Sprecher & Schuh Ag Motor drive for switchgear.
US3712438A (en) * 1971-03-15 1973-01-23 Emerson Electric Co Centrifugal friction clutch
US4160389A (en) * 1976-01-13 1979-07-10 Toyo Kogyo Company Limited Centrifugal clutch and drive mechanism for remote control apparatus
EP0604330A1 (en) * 1992-12-21 1994-06-29 Schneider Electric Sa Modular circuit breaker attached to a remote control unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH142573A (en) * 1929-11-23 1930-09-30 Sprecher & Schuh Ag Motor drive for switchgear.
US3712438A (en) * 1971-03-15 1973-01-23 Emerson Electric Co Centrifugal friction clutch
US4160389A (en) * 1976-01-13 1979-07-10 Toyo Kogyo Company Limited Centrifugal clutch and drive mechanism for remote control apparatus
EP0604330A1 (en) * 1992-12-21 1994-06-29 Schneider Electric Sa Modular circuit breaker attached to a remote control unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028565A1 (en) * 1998-11-10 2000-05-18 Tyco Electronics Logistics Ag Actuator for remote operation of a circuit breaker
AU763336B2 (en) * 1998-11-10 2003-07-17 Tyco Electronics Services Gmbh Actuator for remote operation of a circuit breaker
US6628095B1 (en) 1998-11-10 2003-09-30 Tyco Electronics Logistics A.G. Actuator for remote operation of a circuit breaker
CN102194580A (en) * 2010-03-18 2011-09-21 西门子公司 Drive apparatus and electric switch with such a drive apparatus
CN102194580B (en) * 2010-03-18 2014-06-04 西门子公司 Drive apparatus and electric switch with such a drive apparatus
CN104505275A (en) * 2014-12-23 2015-04-08 莫文艺 Control device for switching mechanism

Also Published As

Publication number Publication date
DE69712960D1 (en) 2002-07-11
FR2746210B1 (en) 1998-06-12
ES2176648T3 (en) 2002-12-01
EP0797230B1 (en) 2002-06-05
FR2746210A1 (en) 1997-09-19
DE69712960T2 (en) 2003-02-06

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