EP2575150B1 - Motorization disengagement device of the reset device of the contact closing device in an electric protection apparatus and apparatus comprising same. - Google Patents

Motorization disengagement device of the reset device of the contact closing device in an electric protection apparatus and apparatus comprising same. Download PDF

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Publication number
EP2575150B1
EP2575150B1 EP12306090.7A EP12306090A EP2575150B1 EP 2575150 B1 EP2575150 B1 EP 2575150B1 EP 12306090 A EP12306090 A EP 12306090A EP 2575150 B1 EP2575150 B1 EP 2575150B1
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EP
European Patent Office
Prior art keywords
wheel
called
disengaging
pinion
closing
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EP12306090.7A
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German (de)
French (fr)
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EP2575150A1 (en
Inventor
Didier Tamisier
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP2575150A1 publication Critical patent/EP2575150A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3063—Decoupling charging handle or motor at end of charging cycle or during charged condition

Definitions

  • the present invention relates to a device for disengaging the device for activating the device for resetting the device for closing contacts in an electrical protection device, said apparatus comprising at least one fixed contact and at least one movable contact carried by a control shaft of the poles, said shaft being able to assume a first position in which the contacts are closed and a second position in which the contacts are open, and a resetting device comprising an energy storage device for participating in closing the contacts, said device disengagement device comprising disengaging means able to uncouple the motorization device and the reset device at the end of the arming maneuver.
  • the present invention aims to further protect the gear train of the drive system.
  • the present invention relates to a disengagement device according to the main claim.
  • control shaft which controls the aforementioned rearming device.
  • the so-called first gear and the so-called first gear are mounted in rotation about two parallel axes with respect to each other.
  • the so-called second wheel and its associated pinion form only one and the same piece, this assembly sliding axially between two positions during the cooperation of the two protuberances so as to disengage or to couple the so-called second wheel.
  • pinion says first.
  • the so-called second wheel is mechanically connected to its associated said second pinion by means of a clutch device allowing said wheel to be displaced with respect to its associated pinion, which in moving, disengages itself from that and thus interrupting the mechanical connection between the so-called first wheel and the so-called first gear of the motorization device.
  • these means of maintaining the clutch during the closing of the contacts consist mainly in that the shape and the length of the protuberances are chosen so that the cooperation between the two protuberances causing the relative axial displacement between the two wheels lasts for substantially the entire duration of the closing operation of the device.
  • these return means comprise a compression spring mounted axially about the axis of the second aforementioned wheel and adapted to bias said wheel in the aforementioned second position.
  • this device comprises a slider secured in translation with the so-called second wheel and able to actuate a micro-contact electrically connected to the power supply device of the motorization device.
  • this device comprises a micro-contact, said micro-contact comprising a pallet adapted to cooperate with a protuberance provided on a wheel integral with the control shaft.
  • the present invention also relates to an electrical protection apparatus comprising a disengaging device having the above-mentioned features taken alone or in combination.
  • this device is a switch or a medium voltage electrical circuit breaker.
  • This resetting device comprises an energy storage device comprising a closing spring 1.
  • This switching device comprises a drive mechanism which can be of any known type having a pole shaft. It may be for example a mechanism of the type described in the document EP-A-0 222 645 , provided with an arming and closure subassembly comprising a closing spring, and an opening subassembly comprising an opening spring.
  • the pole shaft 2 for driving the contacts to the open or closed position is also used to reset the closing spring 1 of the contacts at the end of the closing operation of the contacts.
  • the end of the closing operation of the contacts causes the resetting of an energy storage device, intended to allow maneuvers rapid opening-closing cycles specific to medium voltage protection circuit breakers.
  • This pole shaft 2 at one of its ends, is intended to be driven by the device control device, while its opposite end comprises a so-called first wheel 3 integral with said shaft and intended to cooperate with the motor device M, this shaft being further mechanically connected between these two ends, to the aforementioned closing spring 1.
  • This so-called first wheel 3 is intended to be rotated by a pinion said first 4 belonging to the motorization device M by means of an intermediate device 5.
  • This intermediate device 5 comprises a so-called secondary wheel 6 and a so-called secondary gear 7 , this secondary wheel 6 being intended to be driven by the motorization device M, while the so-called secondary gear 7 cooperates with the so-called first wheel 3, so that in the engaged position, the motorization device M rotates the so-called first wheel 3 and therefore the control shaft 2 through the so-called second wheel 6 and said second pinion 7.
  • said first wheel 3 comprises an annular sector 8 intended to cooperate with a disengagement cone 9 provided on said second wheel 6.
  • the so-called second wheel 6 is mechanically connected to its associated first said pinion 7 by means of a clutch device 10 allowing said wheel to be displaced relative to its associated pinion, which, when moving, disengages itself from this ci, thus interrupting the mechanical connection between the so-called first wheel 3 and the pinion said first 4.
  • This clutch device 10 comprises in a manner known per se a drive tooth in a clutch sleeve with claws.
  • the so-called second wheel 6 and the second said pinion 7 form a unitary assembly and capable of sliding axially between a first position in which the so-called second wheel 6 of the intermediate device 5 is engaged with the pinion said first 4 of the motorization device M and a second position in which these two elements are disengaged with respect to each other.
  • the length of the angular sector 8 corresponds to the closing stroke of the control device.
  • the device is at the end of arming the closing spring.
  • the control device is being closed, the so-called first wheel 3 having moved in the direction of clockwise.
  • the disengaged position is maintained during the entire duration of the closure in that the annular sector 8 of the first wheel 3 cooperates with the disengaging cone 9 during this period, the length of the annular sector 8 corresponding substantially to the length of the closing stroke.
  • the control device is in the closed position disarmed.
  • the so-called first wheel 3 has moved in rotation in the direction of clockwise.
  • the annular sector 8 has left the release cone 9 bringing the two wheels 3.6 closer together relative to each other, via a spring 13 placed between the frame and the wheel called second and suitable to recall the so-called second wheel 6 towards the so-called first wheel 3.
  • This displacement of the so-called second wheel 6 under the effect of the spring causes the rotation of the so-called second wheel 6 with the so-called first gear 7, thereby restoring the mechanical connection between the motorization device M and the control shaft 2, so as to allow the resetting of the closing spring 1 by driving the control shaft 2 by means of the motor device M.
  • the figure 14 illustrates the use according to a particular embodiment of a microswitch 11 for providing power to the electric motor M of the gearbox, depending on the position of the control device.
  • This micro-contact 11 comprises a pallet 12 adapted to cooperate with a protuberance 14 forming a cam belonging to a wheel 2a integral with the control shaft 2.
  • the wheel 2a has on a little less than half of its circumference, a semi-circular recess, the aforementioned protuberance 14 being formed by the portion of the circumference of the wheel 2a complementary to that comprising the recess.
  • the control device is armed open position, or closed armed. In this position, the pallet 12 of the microswitch 11 is in the high position, because the pallet 12 is in the recess, which implies that the microswitch 11 is not actuated and therefore, that the electric motor M is not powered.
  • control shaft 2 and its associated wheel 2a have rotated at an angle of about 180 ° in the counterclockwise direction, to bring the control device in the closed position disarmed.
  • control device On the figure 17 , the control device is being armed and the control shaft 2 and its associated wheel 2a have further rotated by an angle of substantially 180 °, relative to the position of the previous figure.
  • a slider may be mechanically connected to the so-called second wheel and allow to actuate a micro-contact during the sliding of the second wheel 6 so as to synchronize the power supply of the electric motor M.
  • a device for maintaining the clutch during the closing of the device has been made to eliminate the shocks collected by the clutch release gears during the closure of the device, for example slamming, shock loading. tenons, inertia, etc ... as was the case for an engine with a gear train still engaged with the main shaft of the control device.
  • the present invention thus makes it possible to improve the mechanical endurance of the disengagement device of the motorization.
  • This device makes it possible to disengage the motorization at the end of arming of the control so as not to damage it prematurely and also to disengage the motorization during the closure of the circuit breaker, so as not to drive the gear train of the engine and damage it and not to disturb the closing of the order.
  • This device uses the property that the gears with a profile of right teeth in involute circles do not transmit axial force.
  • This device does not use the inertia and kinetic energy of the gears of the motorization produced by the speed of rotation of the shaft and the reduction ratio.
  • the invention is not limited to the embodiments described and illustrated which have been given by way of example.

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  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Mechanisms For Operating Contacts (AREA)

Description

La présente invention concerne un dispositif de débrayage du dispositif de motorisation du dispositif de réarmement du dispositif de fermeture des contacts dans un appareil de protection électrique, ledit appareil comportant au moins un contact fixe et au moins un contact mobile porté par un arbre de commande des pôles, ledit arbre pouvant prendre une première position dans laquelle les contacts sont fermés et une seconde position dans laquelle les contacts sont ouverts, et un dispositif de réarmement comportant un dispositif à accumulation d'énergie destiné à participer à la fermeture des contacts, ledit dispositif de débrayage comportant des moyens de débrayage aptes à désaccoupler le dispositif de motorisation et le dispositif de réarmement à la fin de la manoeuvre d'armement.The present invention relates to a device for disengaging the device for activating the device for resetting the device for closing contacts in an electrical protection device, said apparatus comprising at least one fixed contact and at least one movable contact carried by a control shaft of the poles, said shaft being able to assume a first position in which the contacts are closed and a second position in which the contacts are open, and a resetting device comprising an energy storage device for participating in closing the contacts, said device disengagement device comprising disengaging means able to uncouple the motorization device and the reset device at the end of the arming maneuver.

Dans un type de dispositif tel que celui décrit dans le document EP 1 139 368 , il est nécessaire de débrayer le système de motorisation en fin d'armement pour ne pas le détruire. En effet, dans cette position, la demi-lune de fermeture étant chargée, le système de motorisation ne doit pas transmettre d'effort sur l'ensemble comportant le verrou et la demi-lune, les ressorts de fermeture étant comprimés.In a type of device such as that described in the document EP 1 139 368 , it is necessary to disengage the motorization system at the end of arming to not destroy it. Indeed, in this position, the closing half-moon being loaded, the drive system must not transmit force on the assembly comprising the latch and the half-moon, the closing springs being compressed.

La présente invention vise à protéger davantage encore le train d'engrenage du système de motorisation.The present invention aims to further protect the gear train of the drive system.

On connaît également le document US 5 901 838 décrivant les caractéristiques du préambule de la revendication principale.The document is also known US 5,901,838 describing the features of the preamble of the main claim.

A cet effet, la présente invention a pour objet un dispositif de débrayage selon la revendication principale.For this purpose, the present invention relates to a disengagement device according to the main claim.

Selon une caractéristique particulière, c'est l'arbre de commande précité qui commande le dispositif de réarmement précité.According to a particular characteristic, it is the aforementioned control shaft which controls the aforementioned rearming device.

Selon une autre caractéristique, la roue dentée dite première ainsi que le pignon dit premier sont montés en rotation autour de deux axes parallèles l'un par rapport à l'autre.According to another characteristic, the so-called first gear and the so-called first gear are mounted in rotation about two parallel axes with respect to each other.

Selon encore une autre caractéristique, la roue dite seconde et son pignon associé ne forment qu'une seule et même pièce, cet ensemble coulissant axialement entre deux positions lors de la coopération des deux protubérances de manière à désaccoupler ou bien à accoupler la roue dite seconde du pignon dit premier.According to yet another characteristic, the so-called second wheel and its associated pinion form only one and the same piece, this assembly sliding axially between two positions during the cooperation of the two protuberances so as to disengage or to couple the so-called second wheel. pinion says first.

Selon une autre réalisation, la roue dite seconde est reliée mécaniquement à son pignon associé dit second au moyen d'un dispositif à crabot permettant à ladite roue d'être déplacée par rapport à son pignon associé, laquelle en se déplaçant, se désolidarise de celui-ci, interrompant ainsi la liaison mécanique entre la roue dite première et le pignon dit premier du dispositif de motorisation.According to another embodiment, the so-called second wheel is mechanically connected to its associated said second pinion by means of a clutch device allowing said wheel to be displaced with respect to its associated pinion, which in moving, disengages itself from that and thus interrupting the mechanical connection between the so-called first wheel and the so-called first gear of the motorization device.

Selon une autre caractéristique, ces moyens de maintien du débrayage pendant la fermeture des contacts consistent principalement en ce que la forme et la longueur des protubérances sont choisies de manière que la coopération entre les deux protubérances entraînant le déplacement axial relatif entre les deux roues dure pendant sensiblement toute la durée de la manoeuvre de fermeture de l'appareil.According to another characteristic, these means of maintaining the clutch during the closing of the contacts consist mainly in that the shape and the length of the protuberances are chosen so that the cooperation between the two protuberances causing the relative axial displacement between the two wheels lasts for substantially the entire duration of the closing operation of the device.

Selon une autre caractéristique, ces moyens de rappel comportent un ressort de compression monté axialement autour de l'axe de la seconde roue précitée et apte à rappeler ladite roue dans la seconde position précitée.According to another characteristic, these return means comprise a compression spring mounted axially about the axis of the second aforementioned wheel and adapted to bias said wheel in the aforementioned second position.

Selon une autre caractéristique, ce dispositif comporte un coulisseau solidarisé en translation avec la roue dite seconde et apte à actionner un micro-contact relié électriquement au dispositif d'alimentation du dispositif de motorisation.According to another characteristic, this device comprises a slider secured in translation with the so-called second wheel and able to actuate a micro-contact electrically connected to the power supply device of the motorization device.

Selon une autre caractéristique, ce dispositif comporte un micro-contact, ledit micro-contact comportant une palette apte à coopérer avec une protubérance prévue sur une roue solidaire de l'arbre de commande.According to another characteristic, this device comprises a micro-contact, said micro-contact comprising a pallet adapted to cooperate with a protuberance provided on a wheel integral with the control shaft.

La présente invention a encore pour objet un appareil de protection électrique comportant un dispositif de débrayage comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The present invention also relates to an electrical protection apparatus comprising a disengaging device having the above-mentioned features taken alone or in combination.

Selon une caractéristique particulière, cet appareil est un interrupteur ou un disjoncteur électrique moyenne tension.According to a particular characteristic, this device is a switch or a medium voltage electrical circuit breaker.

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

  • La figure 1 est une vue en perspective d'une partie du dispositif de commande des contacts dans un appareillage électrique de coupure multipolaire moyenne tension comportant un dispositif de motorisation du dispositif de réarmement du dispositif de fermeture des contacts, ainsi qu'un dispositif de débrayage selon une réalisation particulière de l'invention, fermeture des contacts, ainsi qu'un dispositif de débrayage selon une réalisation particulière de l'invention,
  • La figure 1 a est une vue de côté, illustrant la partie intérieure du moteur,
  • La figure 2 est une vue en perspective de la roue dite première du dispositif selon l'invention,
  • La figure 3 est une vue en perspective de le roue dite seconde dudit dispositif,
  • La figure 4 est une vue de côté du dispositif de la figure 1, ce dispositif de commande étant dans une position armée ouverte, le dispositif de motorisation étant en position débrayée,
  • La figure 5 est une vue de dessus de la figure précédente,
  • La figure 6 est une vue partielle de la figure 4, illustrant plus particulièrement deux roues de la figure précédente,
  • Les figures 7,8 et 9 sont des vues identiques respectivement aux figures 4,5 et 6, le dispositif de commande étant dans la position dite en cours de fermeture, en position de maintien du débrayage,
  • Les figures 10 et 11 sont des vues identiques aux figures 4 et 5 et, 7 et 8, le dispositif de commande étant dans une position fermée désarmée, et au moment du début de la désactivation du dispositif de débrayage,
  • Les figures 12 et 13 illustrent, dans une vue de côté, une autre réalisation du dispositif de débrayage selon l'invention, respectivement dans une position débrayée du dispositif et dans une position embrayée,
  • La figure 14 est une vue partielle de côté, illustrant une partie du dispositif selon l'invention comportant un micro-contact destiné à assurer l'alimentation du moteur électrique du réducteur,
  • La figure 15 est une vue partielle de la figure précédente, le dispositif de commande étant en position ouverte armée, ou fermée armée, le moteur électrique n'étant pas alimenté,
  • La figure 16 est une vue identique à la figure précédente, le dispositif de commande étant dans une position fermée désarmée, et
  • La figure 17 est une vue identique à la figure précédente, le dispositif étant en cours d'armement, le moteur électrique du réducteur étant alimenté,
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • The figure 1 is a perspective view of a part of the contact control device in a multipole MV switchgear comprising a device for activating the device for resetting the contact closure device, and a disengaging device according to one embodiment particular of the invention, closing the contacts, as well as a disengaging device according to a particular embodiment of the invention,
  • The figure 1 a is a side view, illustrating the inner part of the engine,
  • The figure 2 is a perspective view of the so-called first wheel of the device according to the invention,
  • The figure 3 is a perspective view of said second wheel of said device,
  • The figure 4 is a side view of the device of the figure 1 this control device being in an open armed position, the actuating device being in the disengaged position,
  • The figure 5 is a view from above of the previous figure,
  • The figure 6 is a partial view of the figure 4 , illustrating more particularly two wheels of the preceding figure,
  • The figures 7 , 8 and 9 are identical views respectively to figures 4,5 and 6 , the control device being in the so-called closed position, in the position of holding the clutch,
  • The Figures 10 and 11 are views identical to Figures 4 and 5 and, 7 and 8, the control device being in a disarmed closed position, and at the moment of the beginning of deactivation of the disengaging device,
  • The Figures 12 and 13 illustrate, in a side view, another embodiment of the disengaging device according to the invention, respectively in a disengaged position of the device and in an engaged position,
  • The figure 14 is a partial side view, illustrating a part of the device according to the invention comprising a micro-contact for supplying the electric motor of the gearbox,
  • The figure 15 is a partial view of the previous figure, the control device being in open armed position, or closed armed, the electric motor is not powered,
  • The figure 16 is a view identical to the previous figure, the control device being in a closed position disarmed, and
  • The figure 17 is a view identical to the previous figure, the device being in the process of arming, the electric motor of the reducer being fed,

Sur la figure 1, on voit un dispositif de motorisation M du dispositif de réarmement R du dispositif de fermeture des contacts appartenant à un appareil électrique de coupure multipolaire moyenne tension. Ce dispositif de réarmement comporte un dispositif à accumulation d'énergie comportant un ressort de fermeture 1.On the figure 1 , there is a motorization device M of the resetting device R of the contact closure device belonging to a medium-voltage multipole electrical breaking device. This resetting device comprises an energy storage device comprising a closing spring 1.

Cet appareil de coupure comporte un mécanisme d'entraînement qui peut être de tout type connu comportant un arbre des pôles. Il peut s'agir par exemple d'un mécanisme du type décrit dans le document EP-A-0 222 645 , muni d'un sous-ensemble d'armement et de fermeture comportant un ressort de fermeture, et d'un sous-ensemble d'ouverture comportant un ressort d'ouverture. Dans cette réalisation de l'invention illustrée sur la figure 1, l'arbre des pôles 2 permettant l'entraînement des contacts vers la position d'ouverture ou de fermeture, est également utilisé pour réaliser le réarmement du ressort de fermeture 1 des contacts, en fin de manoeuvre de fermeture des contacts.This switching device comprises a drive mechanism which can be of any known type having a pole shaft. It may be for example a mechanism of the type described in the document EP-A-0 222 645 , provided with an arming and closure subassembly comprising a closing spring, and an opening subassembly comprising an opening spring. In this embodiment of the invention illustrated on the figure 1 , the pole shaft 2 for driving the contacts to the open or closed position is also used to reset the closing spring 1 of the contacts at the end of the closing operation of the contacts.

Dans cette réalisation particulière, la fin de l'opération de fermeture des contacts entraîne le réarmement d'un dispositif à accumulation d'énergie, destiné à permettre les manoeuvres des cycles rapides d'ouverture-fermeture propres aux disjoncteurs de protection Moyenne Tension.In this particular embodiment, the end of the closing operation of the contacts causes the resetting of an energy storage device, intended to allow maneuvers rapid opening-closing cycles specific to medium voltage protection circuit breakers.

Cet arbre des pôles 2, par l'une de ses extrémités, est destiné à être entraîné par le dispositif de commande de l'appareil, tandis que son extrémité opposée comporte une roue dite première 3 solidaire avec ledit arbre et destinée à coopérer avec le dispositif de motorisation M, cet arbre étant en outre relié mécaniquement entre ces deux extrémités, au ressort de fermeture précité 1.This pole shaft 2, at one of its ends, is intended to be driven by the device control device, while its opposite end comprises a so-called first wheel 3 integral with said shaft and intended to cooperate with the motor device M, this shaft being further mechanically connected between these two ends, to the aforementioned closing spring 1.

Cette roue dite première 3, est destinée à être entraînée en rotation par un pignon dit premier 4 appartenant au dispositif de motorisation M au moyen d'un dispositif intermédiaire 5. Ce dispositif intermédiaire 5 comporte une roue dite secondaire 6 et un pignon dit secondaire 7, cette roue secondaire 6 étant destinée à être entraînée par le dispositif de motorisation M, tandis que le pignon dit secondaire 7 coopère avec la roue dite première 3, de manière qu'en position embrayée, le dispositif de motorisation M entraîne en rotation la roue dite première 3 et donc l'arbre de commande 2 par l'intermédiaire de la roue dite seconde 6 et du pignon dit second 7. Selon l'invention, la roue dite première 3 comporte un secteur annulaire 8 destiné à coopérer avec un cône de débrayage 9 prévu sur la roue dite seconde 6.This so-called first wheel 3 is intended to be rotated by a pinion said first 4 belonging to the motorization device M by means of an intermediate device 5. This intermediate device 5 comprises a so-called secondary wheel 6 and a so-called secondary gear 7 , this secondary wheel 6 being intended to be driven by the motorization device M, while the so-called secondary gear 7 cooperates with the so-called first wheel 3, so that in the engaged position, the motorization device M rotates the so-called first wheel 3 and therefore the control shaft 2 through the so-called second wheel 6 and said second pinion 7. According to the invention, said first wheel 3 comprises an annular sector 8 intended to cooperate with a disengagement cone 9 provided on said second wheel 6.

Selon la réalisation illustrée sur les figures 4 à 9, la roue dite seconde 6 est reliée mécaniquement à son pignon associé 7 dit premier au moyen d'un dispositif à crabot 10 permettant à ladite roue d'être déplacée par rapport à son pignon associé, laquelle en se déplaçant, se désolidarise de celui-ci, interrompant ainsi la liaison mécanique entre la roue dite première 3 et le pignon dit premier 4. Ce dispositif à crabot 10 comporte de manière connue en soi une dent d'entraînement dans un manchon d'embrayage à griffes.According to the illustrated realization on the Figures 4 to 9 the so-called second wheel 6 is mechanically connected to its associated first said pinion 7 by means of a clutch device 10 allowing said wheel to be displaced relative to its associated pinion, which, when moving, disengages itself from this ci, thus interrupting the mechanical connection between the so-called first wheel 3 and the pinion said first 4. This clutch device 10 comprises in a manner known per se a drive tooth in a clutch sleeve with claws.

Selon une autre réalisation illustrée sur les figures 12 et 13, la roue dite seconde 6 et le pignon dit second 7 forment un ensemble monobloc et apte à coulisser axialement entre une première position dans laquelle la roue dite seconde 6 du dispositif intermédiaire 5 est engagé avec le pignon dit premier 4 du dispositif de motorisation M et une seconde position dans laquelle ces deux éléments sont désengagés l'un par rapport à l'autre.According to another illustrated embodiment on the Figures 12 and 13 the so-called second wheel 6 and the second said pinion 7 form a unitary assembly and capable of sliding axially between a first position in which the so-called second wheel 6 of the intermediate device 5 is engaged with the pinion said first 4 of the motorization device M and a second position in which these two elements are disengaged with respect to each other.

Selon une réalisation particulière de l'invention, la longueur du secteur angulaire 8 correspond à la course de fermeture du dispositif de commande.According to a particular embodiment of the invention, the length of the angular sector 8 corresponds to the closing stroke of the control device.

Le fonctionnement du dispositif de débrayage selon les deux réalisations illustrées va être décrit dans ce qui suit en référence aux figures 4 à 13.The operation of the disengaging device according to the two embodiments illustrated will be described in the following with reference to the Figures 4 to 13 .

Sur les figures 4,5 et 6, le dispositif est en fin d'armement du ressort de fermeture.On the figures 4,5 and 6 , the device is at the end of arming the closing spring.

Dans cette position, le secteur annulaire 8 de la roue dite première 3 commence à venir en engagement avec le cône de débrayage 9 prévu sur la roue dite seconde 6. Cela entraîne le déplacement relatif axial entre les deux roues 3,6, la roue dite seconde 6 se déplaçant par rapport à l'axe du crabot de manière que les roues dites première et seconde s'éloignent l'une de l'autre. Ce déplacement de la roue dite seconde 6 entraîne le désengagement de cette roue du pignon dit premier 4 du dispositif de motorisation, ce qui interrompt la liaison mécanique entre le dispositif de motorisation M et la roue dite première 3 d'entraînement de l'arbre des pôles.In this position, the annular sector 8 of the so-called first wheel 3 begins to come into engagement with the disengagement cone 9 provided on the so-called second wheel 6. This causes the axial relative displacement between the two wheels 3.6, the so-called wheel second 6 moving relative to the axis of the clutch so that said first and second wheels away from each other. This displacement of the so-called second wheel 6 causes the disengagement of this wheel of said first pinion 4 of the drive device, which interrupts the mechanical connection between the drive device M and the so-called first drive wheel 3 of the drive shaft. poles.

Sur les figures 7 à 9, le dispositif de commande est en cours de fermeture, la roue dite première 3 s'étant déplacée dans le sens des aiguilles d'une montre. Pendant ce mouvement, la position débrayée est maintenue pendant toute la durée de la fermeture par le fait que le secteur annulaire 8 de la première roue 3 coopère avec le cône de débrayage 9 pendant toute cette durée, la longueur du secteur annulaire 8 correspondant sensiblement à la longueur de la course de fermeture.On the Figures 7 to 9 , the control device is being closed, the so-called first wheel 3 having moved in the direction of clockwise. During this movement, the disengaged position is maintained during the entire duration of the closure in that the annular sector 8 of the first wheel 3 cooperates with the disengaging cone 9 during this period, the length of the annular sector 8 corresponding substantially to the length of the closing stroke.

Sur les figures 10 et 11, le dispositif de commande est en position fermée désarmée. Pour arriver à cette position, la roue dite première 3 s'est déplacée en rotation dans le sens des aiguilles d'une montre. Le secteur annulaire 8 a quitté le cône de débrayage 9 entraînant le rapprochement des deux roues 3,6 l'une par rapport à l'autre, par l'intermédiaire d'un ressort 13 placé entre le châssis et la roue dite seconde et apte à rappeler la roue dite seconde 6 vers la roue dite première 3. Ce déplacement de la roue dite seconde 6 sous l'effet du ressort, entraîne la solidarisation en rotation de la roue dite seconde 6 avec le pignon dit premier 7, ceci rétablissant la liaison mécanique entre le dispositif de motorisation M et l'arbre de commande 2, de manière à permettre le réarmement du ressort de fermeture 1 par l'entraînement de l'arbre de commande 2 au moyen du dispositif de motorisation M.On the Figures 10 and 11 , the control device is in the closed position disarmed. To arrive at this position, the so-called first wheel 3 has moved in rotation in the direction of clockwise. The annular sector 8 has left the release cone 9 bringing the two wheels 3.6 closer together relative to each other, via a spring 13 placed between the frame and the wheel called second and suitable to recall the so-called second wheel 6 towards the so-called first wheel 3. This displacement of the so-called second wheel 6 under the effect of the spring, causes the rotation of the so-called second wheel 6 with the so-called first gear 7, thereby restoring the mechanical connection between the motorization device M and the control shaft 2, so as to allow the resetting of the closing spring 1 by driving the control shaft 2 by means of the motor device M.

La figure 14 illustre l'utilisation selon une réalisation particulière, d'un micro-contact 11 pour réaliser l'alimentation du moteur électrique M du réducteur, en fonction de la position du dispositif de commande.The figure 14 illustrates the use according to a particular embodiment of a microswitch 11 for providing power to the electric motor M of the gearbox, depending on the position of the control device.

Ce micro-contact 11 comporte une palette 12 apte à coopérer avec une protubérance 14 formant came appartenant à une roue 2a solidaire de l'arbre de commande 2.This micro-contact 11 comprises a pallet 12 adapted to cooperate with a protuberance 14 forming a cam belonging to a wheel 2a integral with the control shaft 2.

A cet effet, la roue 2a comporte sur un peu moins de la moitié de sa circonférence, un évidement semi-circulaire, la protubérance précitée 14 étant formée par la partie de la circonférence de la roue 2a complémentaire à celle comportant l'évidement.For this purpose, the wheel 2a has on a little less than half of its circumference, a semi-circular recess, the aforementioned protuberance 14 being formed by the portion of the circumference of the wheel 2a complementary to that comprising the recess.

Sur la figure 15, le dispositif de commande est position ouverte armée, ou bien fermée armée. Dans cette position, la palette 12 du micro-contact 11 est en position haute, car la palette 12 se trouve dans l'évidement, ce qui implique que le micro-contact 11 n'est pas actionné et en conséquence, que le moteur électrique M n'est pas alimenté.On the figure 15 , the control device is armed open position, or closed armed. In this position, the pallet 12 of the microswitch 11 is in the high position, because the pallet 12 is in the recess, which implies that the microswitch 11 is not actuated and therefore, that the electric motor M is not powered.

Sur la figure 16, l'arbre de commande 2 et sa roue associée 2a se sont déplacés en rotation d'un angle d'environ 180° dans le sens inverse des aiguilles d'une montre, afin d'amener le dispositif de commande en position fermée désarmée.On the figure 16 , the control shaft 2 and its associated wheel 2a have rotated at an angle of about 180 ° in the counterclockwise direction, to bring the control device in the closed position disarmed.

Pendant cette rotation, la palette 12 s'est déplacée le long de l'évidement jusqu'à la mise en contact de la protubérance 14 de la roue 2a avec la palette 12 du micro-contact 11, et le basculement de cette palette 2 sous l'effet de la came formée par la protubérance 14. Ce basculement de la palette 12 a ensuite entraîné l'alimentation, et donc l'actionnement du moteur électrique M.During this rotation, the pallet 12 has moved along the recess until the protuberance 14 of the wheel 2a comes into contact with the pallet 12 of the microswitch 11, and the tilting of this pallet 2 under the effect of the cam formed by the protrusion 14. This tilting of the pallet 12 then led to the supply, and therefore the actuation of the electric motor M.

Sur la figure 17, le dispositif de commande est en cours d'armement et l'arbre de commande 2 ainsi que sa roue associée 2a se sont encore déplacé en rotation d'un angle de sensiblement 180°, par rapport à la position de la figure précédente.On the figure 17 , the control device is being armed and the control shaft 2 and its associated wheel 2a have further rotated by an angle of substantially 180 °, relative to the position of the previous figure.

Pendant cette course en rotation, la protubérance 14 formant came agit toujours sur la palette 12 de manière que le moteur M du réducteur soit toujours alimenté.During this rotational stroke, the cam protrusion 14 always acts on the pallet 12 so that the motor M of the gearbox is always powered.

On remarque également sur les figures 14 à 17, la présence de cliquets anti-retour coopérant avec la roue 2a.We also note on Figures 14 to 17 , the presence of non-return pawls cooperating with the wheel 2a.

Selon une autre réalisation non illustrée, un coulisseau peut être relié mécaniquement à la roue dite seconde et permettre d'actionner un micro-contact lors du coulissement de la seconde roue 6 de manière à synchroniser l'alimentation du moteur électrique M.According to another embodiment not illustrated, a slider may be mechanically connected to the so-called second wheel and allow to actuate a micro-contact during the sliding of the second wheel 6 so as to synchronize the power supply of the electric motor M.

On a donc réalisé grâce à l'invention, un dispositif de maintien du débrayage durant la fermeture de l'appareil permettant de supprimer les chocs encaissés par les pignons de débrayage durant la fermeture de l'appareil, par exemple les claquements, sollicitations par chocs des tenons, inertie, etc...comme ceci était le cas pour une motorisation avec un train d'engrenage toujours en prise avec l'arbre principal du dispositif de commande.Thus, thanks to the invention, a device for maintaining the clutch during the closing of the device has been made to eliminate the shocks collected by the clutch release gears during the closure of the device, for example slamming, shock loading. tenons, inertia, etc ... as was the case for an engine with a gear train still engaged with the main shaft of the control device.

La présente invention permet donc d'améliorer la tenue en endurance mécanique du dispositif de débrayage de la motorisation.The present invention thus makes it possible to improve the mechanical endurance of the disengagement device of the motorization.

Ce dispositif permet de débrayer la motorisation en fin d'armement de la commande pour ne pas l'endommager prématurément et également de débrayer la motorisation durant la fermeture du disjoncteur, pour ne pas entraîner le train d'engrenages de la motorisation et le détériorer et pour ne pas perturber la fermeture de la commande. Ce dispositif utilise la propriété que les engrenages à profil de dentures droites en développantes de cercles ne transmettent pas d'effort axial.This device makes it possible to disengage the motorization at the end of arming of the control so as not to damage it prematurely and also to disengage the motorization during the closure of the circuit breaker, so as not to drive the gear train of the engine and damage it and not to disturb the closing of the order. This device uses the property that the gears with a profile of right teeth in involute circles do not transmit axial force.

Ce dispositif n'utilise pas l'inertie et l'énergie cinétique des engrenages de la motorisation produite par la vitesse de rotation de l'arbre et le rapport de réduction. Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemple.This device does not use the inertia and kinetic energy of the gears of the motorization produced by the speed of rotation of the shaft and the reduction ratio. Of course, the invention is not limited to the embodiments described and illustrated which have been given by way of example.

Claims (11)

  1. Device for disengaging the motorization device of the rearming device of the contact closing device in an electrical protection apparatus, said apparatus comprising at least one fixed contact and at least one mobile contact borne by a shaft controlling the poles, said shaft being able to assume a first position in which the contacts are closed and a second position in which the contacts are open, and a rearming device comprising an energy accumulation device intended to participate in the closing of the contacts, said disengaging device comprising disengaging means capable of uncoupling the motorization device and the rearming device at the end of the arming manoeuvre, the abovementioned control shaft (2) being secured to a so-called first wheel (3), said wheel being driven, by means of an intermediate device (5), by a so-called first pinion (4) belonging to the motorization device M during the rearming of the closing device and being no longer linked mechanically to this pinion (4) at the end of the rearming manoeuvre and substantially throughout the contact closing manoeuvre, the intermediate device (5) comprising a toothed, so-called second wheel (6) secured in rotation with a so-called second pinion (7), the toothed, so-called second wheel (6) being engaged with the so-called first pinion (4) of the motorization device M, while the so-called second pinion (7) is engaged with the toothed so-called first wheel (3) secured to the control shaft (2), these disengaging means comprising means for axially displacing the so-called second wheel (6) between a first position in which the motorization device M is uncoupled from the rearming device R and a second position in which these two devices are coupled, and return means capable of returning said second wheel (6) to the second position at the end of the closing manoeuvre, and these means for axially displacing the so-called second wheel (6) comprising a protuberance (8) provided on said first wheel (3) cooperating with a protuberance (9) provided on said second wheel (6), characterized in that one (9) of the protuberances comprises a disengaging cone while the other (8) of the protuberances comprises an annular segment with a length that corresponds substantially to the closing travel of the control shaft (2) so as to maintain the above-mentioned disengagement substantially throughout the closing manoeuvre of the control shaft (2).
  2. Disengaging device according to Claim 1, characterized in that it is the abovementioned control shaft (2) which controls the abovementioned rearming device (R).
  3. Disengaging device according to Claim 1 or 2, characterized in that the toothed so-called first wheel and the so-called first pinion (4) are mounted to rotate about two mutually parallel axes.
  4. Disengaging device according to any one of Claims 1 to 3, characterized in that the so-called second wheel (6) and its associated so-called second pinion (7) form only one and the same part, this assembly sliding axially between two positions upon the cooperation of the two protuberances so as to uncouple or else couple said second wheel (6) with said first pinion (4).
  5. Disengaging device according to any one of Claims 1 to 3, characterized in that the so-called second wheel (6) is linked mechanically to its associated so-called second pinion (7) by means of a dog clutch device (10) making it possible for said wheel (6) to be displaced relative to its associated pinion (7), which, by being displaced, is separated therefrom, thus interrupting the mechanical link between the so-called first wheel (3) and the so-called first pinion (4) of the motorization device (M).
  6. Disengaging device according to any one of Claims 1 to 5, characterized in that these means for maintaining the disengagement during the closing of the contacts consists primarily in that the form and the length of the protuberances (8, 9) are chosen such that the cooperation between the two protuberances driving the relative axial displacement between the two wheels (3, 6) lasts substantially throughout the duration of the closing manoeuvre of the apparatus.
  7. Disengaging device according to Claim 1, characterized in that these return means comprise a compression spring mounted axially about the axis of the above-mentioned second wheel (6) and capable of returning said wheel to the above-mentioned second position.
  8. Disengaging device according to any one of Claims 1 to 7, characterized in that it comprises a runner secured in translation with the so-called second wheel (6) and capable of actuating a micro contact (11) linked electrically to the power supply device of the motorization device M.
  9. Disengaging device according to any one of Claims 1 to 8, characterized in that it comprises a micro contact (11), said micro contact (11) comprising a blade (12) capable of cooperating with a protuberance (14) provided on a wheel (2a) secured to the control shaft (2).
  10. Electrical protection apparatus according to any one of the preceding claims, characterized in that it comprises a disengaging device according to any one of the preceding claims.
  11. Electrical protection apparatus according to Claim 10, characterized in that it is a switch or a medium voltage electrical circuit breaker.
EP12306090.7A 2011-09-30 2012-09-11 Motorization disengagement device of the reset device of the contact closing device in an electric protection apparatus and apparatus comprising same. Active EP2575150B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1102977A FR2980909B1 (en) 2011-09-30 2011-09-30 DEVICE FOR RELEASING THE MOTORIZATION OF THE RESET DEVICE OF THE DEVICE FOR CLOSING CONTACTS IN AN ELECTRICAL PROTECTION DEVICE AND APPARATUS COMPRISING THE SAME

Publications (2)

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EP2575150A1 EP2575150A1 (en) 2013-04-03
EP2575150B1 true EP2575150B1 (en) 2016-10-05

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EP12306090.7A Active EP2575150B1 (en) 2011-09-30 2012-09-11 Motorization disengagement device of the reset device of the contact closing device in an electric protection apparatus and apparatus comprising same.

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EP (1) EP2575150B1 (en)
CN (1) CN103035426B (en)
ES (1) ES2608586T3 (en)
FR (1) FR2980909B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984589A1 (en) * 2011-12-16 2013-06-21 Schneider Electric Ind Sas DEVICE FOR CONTROLLING THE MOTORIZATION OF THE RESET DEVICE OF THE DEVICE FOR CLOSING CONTACTS IN AN ELECTRICAL PROTECTION DEVICE AND APPARATUS COMPRISING IT
DE102016215888A1 (en) * 2016-08-24 2018-03-01 Siemens Aktiengesellschaft Coupling device and method for coupling and decoupling a tensioning gear of a circuit breaker

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
DE3415501A1 (en) * 1984-04-26 1985-11-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Switch drive
FR2589626B1 (en) 1985-10-31 1989-03-03 Merlin Gerin CONTROL MECHANISM OF A CIRCUIT BREAKER EQUIPPED WITH AN ENERGY ACCUMULATING SYSTEM
JP3644187B2 (en) * 1997-04-17 2005-04-27 三菱電機株式会社 Circuit breaker energy storage device
DE19843205A1 (en) * 1998-09-16 2000-03-23 Siemens Ag Low-voltage (LV) power switch with accessory motor winding mechanism
FR2807204B1 (en) 2000-03-31 2002-05-24 Schneider Electric Ind Sa ELECTRIC MULTIPOLAR CUTTING APPARATUS PROVIDED WITH A DRIVE MECHANISM AND CUTTING MODULES
KR100850422B1 (en) * 2007-08-20 2008-08-04 엘에스산전 주식회사 Spring charging device of air circuit breaker

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
ES2608586T3 (en) 2017-04-12
CN103035426A (en) 2013-04-10
FR2980909B1 (en) 2016-08-05
EP2575150A1 (en) 2013-04-03
FR2980909A1 (en) 2013-04-05
CN103035426B (en) 2016-06-08

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