EP2161730B1 - Device for controlling the opening and/or closing of the contacts in an electrical device - Google Patents

Device for controlling the opening and/or closing of the contacts in an electrical device Download PDF

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Publication number
EP2161730B1
EP2161730B1 EP09354031.8A EP09354031A EP2161730B1 EP 2161730 B1 EP2161730 B1 EP 2161730B1 EP 09354031 A EP09354031 A EP 09354031A EP 2161730 B1 EP2161730 B1 EP 2161730B1
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EP
European Patent Office
Prior art keywords
manoeuvring
ratchet
spring
pumping
crank
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.)
Not-in-force
Application number
EP09354031.8A
Other languages
German (de)
French (fr)
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EP2161730A1 (en
Inventor
Denis Perrin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2161730A1 publication Critical patent/EP2161730A1/en
Application granted granted Critical
Publication of EP2161730B1 publication Critical patent/EP2161730B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01H3/3021—Charging means using unidirectional coupling
    • 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
    • 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
    • H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements

Definitions

  • the present invention relates to a device for controlling the opening and closing of the contacts in an electrical apparatus
  • a control crank hingedly connected to a frame said control crank being adapted to be rotated by a control member between a first position corresponding to a closed position of the contacts and a second position corresponding to an open position of the contacts, a compression spring connected in an articulated manner by one, said first, of its ends, to said crank of control, and mechanically connected by its opposite end, said second, to the moving contact, and a connecting rod connected in an articulated manner by one of its ends said first to said crank and mechanically connected by its opposite end, said second, to movable contact, said spring being able to be compressed, by its first end, by the adite hand crank, to a so-called neutral position of position from which the spring becomes motor and acts during its decompression on the movable contact and the control crank so as to move the movable contact.
  • the present invention aims to provide a control device of simple design, and whose operation is made easier.
  • the subject of the present invention is a control device of the kind mentioned above, this device being characterized in that it comprises a pumping device and in that the operating direction of the operating means of said pumping device is in one direction during the operation of the control device in the direction of the opening of the contacts, and in a direction opposite to the previous one during the operation of the control device in the direction of the closing of the contacts, the change of the operating direction of said operating means of the pumping device being controlled by the compression spring cooperating with reversing means of the maneuvering direction during its passage beyond the position of passage of the neutral point.
  • the pumping device comprises an operating shaft adapted to drive the operating crank, a pumping lever rotatably mounted around the operating shaft between a first position and a second position, said lever being recalled in the first (or second) position by the lever return means, a so-called operating gear and a so-called retaining gear wheel integral with the operating shaft, a pumping pawl rotatably mounted relative to the pumping lever and recalled by means of biasing the pawl pawl in the engagement position with the actuating toothed wheel so as to allow the driving gear to be driven when the lever is moved from the first to the second position (or respectively between the second and the first position), a retaining pawl mounted pivotally connected to the frame and biased by return means of the retaining pawl in the engagement position. nt with the toothed retaining wheel so as to prevent rotation of the retaining gear wheel and thus of the operating shaft in the opposite direction to the preceding direction, during the return of the control lever by the lever return means to the first position (or respectively
  • this device comprises means for changing the return direction of the return means of the pumping lever.
  • the drive gear comprises a first series of teeth oriented in a certain direction and a second series of teeth oriented in a direction. opposite direction to the previous one, and in that the pumping pawl comprises a first part intended to cooperate with the aforesaid first series and a second part intended to cooperate with the aforesaid second series so as to drive the cogwheel and therefore the operating shaft, in a direction or respectively in the other direction depending on the position of the pumping pawl, which can be moved via means of position change of the pawl, between a first position in which the pawl is recalled by the abovementioned return means so that its first part cooperates with the first set of teeth above, and a second position in which the pawl is recalled by the return means of the pawl so that its second part cooperates with the second series aforementioned teeth.
  • the pumping pawl return means comprise a spring having a first end pivotally connected to the pumping lever and a second end pivotally connected to the pawl.
  • the means for changing the position of the pumping pawl comprise means for reversing the spring torque of the pumping pawl, the means for reversing the spring torque of the pumping pawl comprising two rockers integral with the pumping pawl. and operable to cooperate with said pawl so as to reverse the spring torque of the pumping pawl.
  • the retaining toothed wheel comprises a first series of teeth oriented in a certain direction and a second series of teeth oriented in a direction opposite to the preceding one
  • the retaining pawl comprises a first part intended to cooperate with the aforementioned first series and a second part intended to cooperate with the aforementioned second series so as to prevent the rotation in the opposite direction of the retaining gear wheel and therefore of the operating shaft, as a function of the position of the retaining pawl which can be moved via pawl position change means between a first position in which the pawl is biased by the abovementioned return means so that its first part co-operates with the first set of teeth mentioned above, and a second position in which the ratchet is recalled by the return means of the pawl so that its second part cooperates with the second set of teeth mentioned above.
  • the retaining pawl return means comprise a spring having a first end pivotally connected to the frame and a second end pivotally connected to the retaining pawl.
  • the means for changing the position of the retaining pawl comprise means for reversing the torque of the spring of the retaining pawl.
  • the means for reversing the torque of the spring of the retaining pawl comprise two rockers integral with the operating shaft and adapted to cooperate with said retaining pawl so as to reverse the torque of the spring of the retaining pawl.
  • the means for changing the return direction of the return means of the pumping lever, the means for changing the position of the pumping pawl and the means for changing the position of the retaining pawl are actuated by the actuating shaft driven by the compression spring after passage of said spring beyond the position of passage of neutral.
  • the return means of the pumping lever comprise a spring mounted around the operating shaft and having a first end resting on an axis of the pumping lever and a second end resting on an axis that is integral in rotation. from the control crank.
  • the second end of the spring is supported on an axis belonging to a so-called spring-hook crank pivotally connected around the operating shaft and integral in rotation with a rotationally solid drive crank of the maneuvering shaft.
  • the two ends of the spring are crossed, and the bearing surfaces between the two ends of the spring and respectively the pumping lever and the crank spring-hook are located inside a V formed by the ends of the spring of such so that, after the passage of the compression spring beyond the neutral position of the passage causing the rotation of the operating shaft, the two bearing surfaces respectively on the axis of the crank spring and on the axis of the pumping lever are swapped.
  • control device comprises a compression crank and an operating crank connected in an articulated manner relative to the frame, said compression crank being connected in an articulated manner to one end of the compression spring and being driven in rotation by said operating shaft, said operating crank being hingedly connected to said connecting rod, the device comprising means for allowing the driving crank to be driven by the compression crank after the passage of the compression spring beyond the position of passage of the neutral point, so as to cause the change of position of the movable contact.
  • FIG. 1 to 4 there is shown a control device D of the contacts of an electrical switching device such as a switch or a disconnector, according to the invention.
  • This device D comprises a control crank constituted in this particular embodiment by a crank 1 ( figs.2 , 4 ) in pivot connection relative to a frame B.
  • This operating crank 1 is connected in an articulated manner, by one of its ends 1a, 1b, to the one 2a said first, ends 2a, 2b of a connecting rod 2, said link rod 2 being, at its end 2b said second, opposite to the first, hingedly connected to an actuating crank 3 of a camshaft 4 connected to a drive device of the mobile contact of the apparatus (not shown).
  • This device also comprises a compression crank 5 connected in an articulated manner to the frame, about the same axis X as the axis X about which the maneuvering crank 1 is connected to the frame.
  • This compression crank 5 comprises an end 5a hingedly connected to an end portion 6a of a guide rod 6 of a spring 7.
  • This guide rod 6 comprises a set of rods 8 for compression and guiding said operating spring 7 interposed between the two end portions 6a, 6b of the connecting rod 6 mechanically connected respectively to the two ends 7a, 7b of said spring 7.
  • This device also comprises an operating lever 16 rotatably mounted relative to the frame and capable of driving the above-mentioned compression crank 5.
  • This device is completed by a lock 10 ( fig.4 ) to hold the control crank 1 and thus the moving contact, in its initial position during the compression of the spring 7 before the passage of said spring beyond a line L called dead-point crossing, this line being the passing line both by the X axis of articulation of the compression crank 5 and the operating crank 1 to the frame B, and the Y axis of articulation of the connecting rod 2 to the actuating crank 3 of the camshaft 4.
  • the lever 16 is driven downwards in the counterclockwise direction until the compression crank 5 and the spring rod 7 pass through the dead center line L.
  • the latch 10 maintains the drive shaft 12 of the operating crank 1 in a so-called opening position of the contacts.
  • the system is driven autonomously under the effect of the operating spring 7.
  • a lifting finger (not shown) provided on the crank, drives the latch 10 in the clockwise direction so that the drive shaft 12 of the crank maneuver 1 is released from a notch 11 provided in the holding lock 10 in which it was retained.
  • the opening operation of the device is carried out as follows:
  • the control device comprises a pumping device comprising a so-called spring hook crank 13 pivotally connected to a so-called maneuvering shaft 14, said shaft being able to carry the drive of the compression crank 5, said crank spring hook 13 being adapted to be driven in rotation by a drive crank 15 integral in rotation with the operating shaft, during the opening and closing operations.
  • a pumping lever 16 is pivotally mounted around the operating shaft 14.
  • a spring 17 for returning the lever 16 pivotally connected to the operating shaft 14 is supported by one 17a of its ends, on an axis 19 belonging to the pumping lever 16, and by its opposite end 17b, on an axis 18 belonging to the spring-hook crank 13. This spring 17 serves to recall the pumping lever 16 during pumping maneuvers.
  • a set of two gear wheels 20,21, respectively said operating 20 and retaining 21 and four rockers 22,23,24,25 is rigidly mounted around the shaft 14 being secured to this shaft.
  • a pumping pawl 26 is pivotally mounted in the yoke 27 of the pumping lever 16, said pawl 26 being recalled by a pawl spring 28, one end 28a of which is pivotally connected in the yoke 27 of the pumping lever and the another end 28b is pivotally connected to the pawl 26.
  • a retaining pawl 29 is mounted pivotally connected to the frame B. This pawl is recalled by a pawl spring 30, one end 30a of which is pivotally connected to the frame B and the other end 30b is pivotally connected to the pawl 29.
  • the pawl pawl 26 is intended to cooperate with the so-called maneuver gear 20, which is mounted around the operating shaft inside the yoke, as a first rocker 22 and a second rocker 23 whose function will be explained in the following, said rockers being disposed respectively on either side of said drive gear 20.
  • the retaining pawl 29 is intended to cooperate with the other 21 of the two toothed wheels 20, 21, called the retaining toothed wheel, which is surrounded by a so-called third rocker 24 and a so-called fourth rocker 25, mounted respectively from both sides of said retaining gear.
  • the drive gear 20 comprises a first series of teeth 20a oriented in a certain direction and a second series of teeth 20b oriented in a direction opposite to the previous one.
  • the pumping pawl 26 comprises a first part 26a intended to cooperate with the aforesaid first series 20a and a second part 26b intended to cooperate with the aforementioned second series 20b so as to drive the drive gear 20 and thus the operating shaft 14, in one direction or the other depending on the position of the pumping pawl 26.
  • This pawl 26 can be moved by means of change means position between a first position in which said pawl is returned by the return spring 28 of the pump pawl 26 so that its first portion 26a cooperates with the first set of teeth 20a and a second position in which the pawl 26 is recalled by said spring 28 so that its second portion 26b cooperates with the second set of teeth 20b.
  • the means for changing the position of pawl pawl 26 are constituted by two rockers 22,23 integral with the operating shaft and adapted to cooperate with said pawl 26 so as to reverse the torque of the pumping pawl.
  • One of these rockers performs the change of position when the lever 16 is activated from the bottom to the top and the other 23 of these rockers performs the change of position when the lever 16 is activated from the top down.
  • the toothed retaining wheel 21 comprises a first series of teeth 21a oriented in a certain direction and a second series of teeth 21b oriented in a direction opposite to the previous one.
  • the retaining pawl 29 has a first part 29a intended to cooperate with the aforementioned first set of teeth 21a of the retaining pawl, and a second part 29b intended to cooperate with the aforementioned second series of teeth 21b, so as to prevent the rotation in the opposite direction of the retaining toothed wheel 21 and thus of the operating shaft 14, in one direction or the other of the displacement of the pumping lever, as a function of the position of the retaining pawl.
  • This pawl can be moved via means of position change between a first position in which said pawl 29 is returned by the return spring 30 of the retaining pawl 29 so that its first portion 29a cooperates with the first set of teeth 21a, and a second position in which the retaining pawl 29 is biased by said spring 30 so that its second portion 29b cooperates with the second set of teeth 21b.
  • the means for changing the position of the retaining pawl consist of two rockers 24,25 secured to the operating shaft 14 and able to cooperate with said pawl so as to reverse the spring torque of the retaining pawl 29. 24 of these rockers performs the change of position when the lever 16 is activated from the bottom up, and the other 25 of these rockers performs the change of position when the lever is activated from top to bottom.
  • the closing maneuver is performed according to the following steps:
  • the pumping lever 16 In the position of rest or opening of the contacts, as illustrated on the figure 5 , the pumping lever 16 is held in the high position by the spring 17 of return of the lever.
  • the pumping pawl 26 is in position to take over the driving gear 20 with a certain clearance.
  • the retaining pawl 29 bears against the retaining gear 21 as illustrated in FIG. figure 5a .
  • the retaining pawl 29 is put in place in front of a tooth of the series 21b of the retaining toothed wheel 21 under the action of the spring 30 of the retaining pawl.
  • FIGs 7 and 7a illustrate the positions of the device after a third pumping, while the Figures 8 and 8a illustrate the position of the device after the neutral position.
  • the operating spring 7 becomes motor. It then rotates the operating shaft 14, the crank spring 13 by means of the drive crank 15, the two gears 20,21 and rockers 22,23,24,25. ( fig.8 and fig.8a )
  • the so-called second rocker 23 rotates the pump pawl 26 so that the torque of the return spring 28 of the pawl 26 also reverses ( fig.9 ).
  • the rocker 25 rotates the retaining pawl 29 so that its portion 29a cooperates with a first set of teeth 21a.
  • the opening maneuver is carried out according to the following steps:
  • the retaining pawl 29 bears on the retaining toothed wheel 21.
  • This system allows to maneuver a high energy mechanism that can not be operated in a single maneuver.
  • This device is well suited to the addition of a motor connecting to the axis of maneuver because it does not interfere with its operation.

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Description

La présente invention concerne un dispositif de commande de l'ouverture et de la fermeture des contacts dans un appareil électrique comprenant une manivelle de commande reliée de manière articulée par rapport à un bâti, ladite manivelle de commande étant apte à être entraînée en rotation par un organe de commande entre une première position correspondant à une position fermée des contacts et une seconde position correspondant à une position ouverte des contacts, un ressort de compression relié de manière articulée par l'une, dite première, de ses extrémités, à ladite manivelle de commande, et reliée mécaniquement par son extrémité opposée, dite seconde, au contact mobile, et une bielle de liaison reliée de manière articulée par l'une de ses extrémités dite première à ladite manivelle et reliée mécaniquement par son extrémité opposée, dite seconde, au contact mobile, ledit ressort étant apte à être comprimé, par sa première extrémité, par ladite manivelle, jusqu'à une position dite de passage de point mort à partir de laquelle le ressort devient moteur et agit lors de sa décompression, sur le contact mobile et la manivelle de commande de manière à déplacer le contact mobile.The present invention relates to a device for controlling the opening and closing of the contacts in an electrical apparatus comprising a control crank hingedly connected to a frame, said control crank being adapted to be rotated by a control member between a first position corresponding to a closed position of the contacts and a second position corresponding to an open position of the contacts, a compression spring connected in an articulated manner by one, said first, of its ends, to said crank of control, and mechanically connected by its opposite end, said second, to the moving contact, and a connecting rod connected in an articulated manner by one of its ends said first to said crank and mechanically connected by its opposite end, said second, to movable contact, said spring being able to be compressed, by its first end, by the adite hand crank, to a so-called neutral position of position from which the spring becomes motor and acts during its decompression on the movable contact and the control crank so as to move the movable contact.

Un tel dispositif est décrit dans la demande de brevet EP 0 417 015 . La commande d'un tel dispositif est réalisée actuellement par une seule opération. Or, lorsque ce dispositif doit être utilisé pour la commande d'ampoules à vide, une plus grande quantité d'énergie est nécessaire pour réaliser les manoeuvres d'ouverture et de fermeture. Il est donc nécessaire d'utiliser un système de démultiplication de l'effort de commande.Such a device is described in the patent application EP 0 417 015 . The control of such a device is currently performed by a single operation. However, when this device is to be used for the control of vacuum bulbs, a greater amount of energy is required to perform the opening and closing maneuvers. It is therefore necessary to use a system of reduction of the control effort.

On connaît également des dispositifs de pompage réalisant cette démultiplication de l'effort de commande, ces dispositifs de pompage s'inversant automatiquement de manière à réaliser l'ouverture des contacts lors de la manoeuvre du système de pompage dans un sens, et à réaliser la fermeture des contacts, lors de la manoeuvre du système de pompage dans un sens opposé au précédent.Also known are pumping devices performing this reduction of the control force, these pumping devices reversing automatically so as to achieve the opening of the contacts during the operation of the pumping system in one direction, and to achieve the closing of the contacts, when operating the pumping system in a direction opposite to the previous one.

La présente invention a pour but de proposer un dispositif de commande de conception simple, et dont la manoeuvre est rendue plus aisée.The present invention aims to provide a control device of simple design, and whose operation is made easier.

A cet effet, la présente invention a pour objet un dispositif de commande du genre précédemment mentionné, ce dispositif étant caractérisé en ce qu'il comporte un dispositif de pompage et en ce que le sens de manoeuvre des moyens de manoeuvre dudit dispositif de pompage s'effectue dans un sens lors de la manoeuvre du dispositif de commande dans le sens de l'ouverture des contacts, et dans un sens opposé au précédent lors de la manoeuvre du dispositif de commande dans le sens de la fermeture des contacts, le changement du sens de manoeuvre desdits moyens de manoeuvre du dispositif de pompage étant commandé par le ressort de compression coopérant avec des moyens d'inversion du sens de manoeuvre lors de son passage au-delà de la position de passage du point mort.For this purpose, the subject of the present invention is a control device of the kind mentioned above, this device being characterized in that it comprises a pumping device and in that the operating direction of the operating means of said pumping device is in one direction during the operation of the control device in the direction of the opening of the contacts, and in a direction opposite to the previous one during the operation of the control device in the direction of the closing of the contacts, the change of the operating direction of said operating means of the pumping device being controlled by the compression spring cooperating with reversing means of the maneuvering direction during its passage beyond the position of passage of the neutral point.

Selon l'invention, le dispositif de pompage comporte un arbre de manoeuvre apte à entraîner la manivelle de manoeuvre, un levier de pompage monté rotatif autour de l'arbre de manoeuvre entre une première position et une seconde position, ledit levier étant rappelé dans la première (ou la seconde) position par des moyens de rappel du levier, une roue dentée dite de manoeuvre et une roue dentée dite de retenue solidaires de l'arbre de manoeuvre, un cliquet de pompage monté rotatif par rapport au levier de pompage et rappelé par des moyens de rappel du cliquet de pompage en position d'engagement avec la roue dentée de manoeuvre de manière à permettre l'entraînement de la roue dentée de manoeuvre lorsque le levier est déplacé de la première à la seconde position (ou respectivement entre la seconde et la première position), un cliquet de retenue monté en liaison pivot par rapport au bâti et rappelé par des moyens de rappel du cliquet de retenue en position d'engagement avec la roue dentée de retenue de manière à empêcher la rotation de la roue dentée de retenue et donc de l'arbre de manoeuvre en sens inverse au sens précédent, pendant le rappel du levier de commande par le moyen de rappel du levier vers la première position (ou respectivement la seconde position).According to the invention, the pumping device comprises an operating shaft adapted to drive the operating crank, a pumping lever rotatably mounted around the operating shaft between a first position and a second position, said lever being recalled in the first (or second) position by the lever return means, a so-called operating gear and a so-called retaining gear wheel integral with the operating shaft, a pumping pawl rotatably mounted relative to the pumping lever and recalled by means of biasing the pawl pawl in the engagement position with the actuating toothed wheel so as to allow the driving gear to be driven when the lever is moved from the first to the second position (or respectively between the second and the first position), a retaining pawl mounted pivotally connected to the frame and biased by return means of the retaining pawl in the engagement position. nt with the toothed retaining wheel so as to prevent rotation of the retaining gear wheel and thus of the operating shaft in the opposite direction to the preceding direction, during the return of the control lever by the lever return means to the first position (or respectively the second position).

Selon une caractéristique, particulière ce dispositif comporte des moyens pour changer le sens de rappel des moyens de rappel du levier de pompage.According to one particular feature, this device comprises means for changing the return direction of the return means of the pumping lever.

Selon une autre caractéristique, la roue dentée de manoeuvre comporte une première série de dents orientées selon un certain sens et une seconde série de dents orientées selon un sens opposé au précédent, et en ce que le cliquet de pompage comporte une première partie destinée à coopérer avec la première série précitée et une seconde partie destinée à coopérer avec la seconde série précitée de manière à entraîner la roue dentée de manoeuvre et donc l'arbre de manoeuvre, dans un sens ou respectivement dans l'autre sens en fonction de la position du cliquet de pompage, lequel peut être déplacé par l'intermédiaire de moyens de changement de position du cliquet, entre une première position dans laquelle le cliquet est rappelé par les moyens de rappel précités de manière que sa première partie coopère avec la première série de dents précitée, et une seconde position dans laquelle le cliquet est rappelé par les moyens de rappel du cliquet de manière que sa seconde partie coopère avec la seconde série de dents précitée.According to another characteristic, the drive gear comprises a first series of teeth oriented in a certain direction and a second series of teeth oriented in a direction. opposite direction to the previous one, and in that the pumping pawl comprises a first part intended to cooperate with the aforesaid first series and a second part intended to cooperate with the aforesaid second series so as to drive the cogwheel and therefore the operating shaft, in a direction or respectively in the other direction depending on the position of the pumping pawl, which can be moved via means of position change of the pawl, between a first position in which the pawl is recalled by the abovementioned return means so that its first part cooperates with the first set of teeth above, and a second position in which the pawl is recalled by the return means of the pawl so that its second part cooperates with the second series aforementioned teeth.

Selon une autre caractéristique, les moyens de rappel du cliquet de pompage comportent un ressort comportant une première extrémité en liaison pivot par rapport au levier de pompage et une seconde extrémité en liaison pivot sur le cliquet.According to another characteristic, the pumping pawl return means comprise a spring having a first end pivotally connected to the pumping lever and a second end pivotally connected to the pawl.

Selon une autre caractéristique, les moyens de changement de position du cliquet de pompage comportent des moyens pour inverser le couple du ressort du cliquet de pompage, les moyens pour inverser le couple du ressort du cliquet de pompage comportant deux basculeurs solidaires de l'arbre de manoeuvre et aptes à coopérer avec ledit cliquet de manière à inverser le couple du ressort du cliquet de pompage.According to another characteristic, the means for changing the position of the pumping pawl comprise means for reversing the spring torque of the pumping pawl, the means for reversing the spring torque of the pumping pawl comprising two rockers integral with the pumping pawl. and operable to cooperate with said pawl so as to reverse the spring torque of the pumping pawl.

Selon une autre caractéristique, la roue dentée de retenue comporte une première série de dents orientées selon un certain sens et une seconde série de dents orientées selon un sens opposé au précédent, et en ce que le cliquet de retenue comporte une première partie destinée à coopérer avec la première série précitée et une seconde partie destinée à coopérer avec la seconde série précitée de manière à empêcher la rotation en sens inverse de la roue dentée de retenue et donc de l'arbre de manoeuvre, en fonction de la position du cliquet de retenue, lequel peut être déplacé par l'intermédiaire de moyens de changement de position du cliquet, entre une première position dans laquelle le cliquet est rappelé par les moyens de rappel précités de manière que sa première partie coopère avec la première série de dents précitée, et une seconde position dans laquelle le cliquet est rappelé par les moyens de rappel du cliquet de manière que sa seconde partie coopère avec la seconde série de dents précitée.According to another characteristic, the retaining toothed wheel comprises a first series of teeth oriented in a certain direction and a second series of teeth oriented in a direction opposite to the preceding one, and in that the retaining pawl comprises a first part intended to cooperate with the aforementioned first series and a second part intended to cooperate with the aforementioned second series so as to prevent the rotation in the opposite direction of the retaining gear wheel and therefore of the operating shaft, as a function of the position of the retaining pawl which can be moved via pawl position change means between a first position in which the pawl is biased by the abovementioned return means so that its first part co-operates with the first set of teeth mentioned above, and a second position in which the ratchet is recalled by the return means of the pawl so that its second part cooperates with the second set of teeth mentioned above.

Selon une caractéristique particulière, les moyens de rappel du cliquet de retenue comportent un ressort comportant une première extrémité en liaison pivot par rapport au bâti et une seconde extrémité en liaison pivot sur le cliquet de retenue.According to a particular feature, the retaining pawl return means comprise a spring having a first end pivotally connected to the frame and a second end pivotally connected to the retaining pawl.

Selon une autre caractéristique, les moyens de changement de position du cliquet de retenue comportent des moyens pour inverser le couple du ressort du cliquet de retenue.According to another characteristic, the means for changing the position of the retaining pawl comprise means for reversing the torque of the spring of the retaining pawl.

Selon une autre caractéristique, les moyens pour inverser le couple du ressort du cliquet de retenue comportent deux basculeurs solidaires de l'arbre de manoeuvre et aptes à coopérer avec ledit cliquet de retenue de manière à inverser le couple du ressort du cliquet de retenu.According to another characteristic, the means for reversing the torque of the spring of the retaining pawl comprise two rockers integral with the operating shaft and adapted to cooperate with said retaining pawl so as to reverse the torque of the spring of the retaining pawl.

Selon une autre caractéristique, les moyens pour changer le sens de rappel des moyens de rappel du levier de pompage, les moyens de changement de la position du cliquet de pompage et les moyens de changement de la position du cliquet de retenue sont actionnés par l'arbre de manoeuvre entraîné par le ressort de compression après passage dudit ressort au-delà de la position de passage du point mort.According to another characteristic, the means for changing the return direction of the return means of the pumping lever, the means for changing the position of the pumping pawl and the means for changing the position of the retaining pawl are actuated by the actuating shaft driven by the compression spring after passage of said spring beyond the position of passage of neutral.

Selon une autre caractéristique, les moyens de rappel du levier de pompage comportent un ressort monté autour de l'arbre de manoeuvre et comportant une première extrémité en appui sur un axe du levier de pompage et une seconde extrémité en appui sur un axe solidaire en rotation de la manivelle de commande.According to another characteristic, the return means of the pumping lever comprise a spring mounted around the operating shaft and having a first end resting on an axis of the pumping lever and a second end resting on an axis that is integral in rotation. from the control crank.

Selon une autre caractéristique, la seconde extrémité du ressort est en appui sur un axe appartenant à une manivelle dite d'accroche-ressort en liaison pivot autour de l'arbre de manoeuvre et solidaire en rotation d'une manivelle d'entraînement solidaire en rotation de l'arbre de manoeuvre. Les deux extrémités du ressort sont croisées, et les surfaces d'appui entre les deux extrémités du ressort et respectivement le levier de pompage et la manivelle accroche-ressort sont situés à l'intérieur d'un V formé par les extrémités du ressort de telle manière que, après le passage du ressort de compression au-delà de la position de passage de point mort entraînant la rotation de l'arbre de manoeuvre, les deux surfaces d'appui respectivement sur l'axe de la manivelle d'accroche-ressort et sur l'axe du levier de pompage s'intervertissent.According to another characteristic, the second end of the spring is supported on an axis belonging to a so-called spring-hook crank pivotally connected around the operating shaft and integral in rotation with a rotationally solid drive crank of the maneuvering shaft. The two ends of the spring are crossed, and the bearing surfaces between the two ends of the spring and respectively the pumping lever and the crank spring-hook are located inside a V formed by the ends of the spring of such so that, after the passage of the compression spring beyond the neutral position of the passage causing the rotation of the operating shaft, the two bearing surfaces respectively on the axis of the crank spring and on the axis of the pumping lever are swapped.

Selon une autre caractéristique, le dispositif de commande comporte une manivelle de compression et une manivelle de manoeuvre reliées de manière articulée par rapport au bâti, ladite manivelle de compression étant reliée de manière articulée à l'une des extrémités du ressort de compression et étant entraînée en rotation par ledit arbre de manoeuvre, ladite manivelle de manoeuvre étant reliée de manière articulée à ladite bielle de liaison, le dispositif comportant des moyens pour permettre l'entraînement de la manivelle de manoeuvre par la manivelle de compression après le passage du ressort de compression au-delà de la position de passage du point mort, de manière à entraîner le changement de position du contact mobile.According to another characteristic, the control device comprises a compression crank and an operating crank connected in an articulated manner relative to the frame, said compression crank being connected in an articulated manner to one end of the compression spring and being driven in rotation by said operating shaft, said operating crank being hingedly connected to said connecting rod, the device comprising means for allowing the driving crank to be driven by the compression crank after the passage of the compression spring beyond the position of passage of the neutral point, so as to cause the change of position of the movable contact.

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, illustrant une réalisation d'un dispositif de commande selon l'invention comportant un levier de pompage, dans une position ouverte des contacts,
  • La figure 2 est une vue en perspective éclatée de ce même dispositif,
  • La figure 3 est une vue de face de ce même dispositif, dans une position ouverte des contacts,
  • La figure 4 est une vue de côté de ce même dispositif, juste avant le passage du ressort de compression au-delà de la ligne de passage du point mort,
  • La figure 5 est une vue partielle de côté de ce même dispositif, en position ouverte des contacts, illustrant principalement la roue dentée de manoeuvre et le cliquet de pompage, en position haute du levier de pompage,
  • La figure 5a est une vue partielle de côté, illustrant seulement la roue dentée de retenue et le cliquet de retenu, dans cette même position du dispositif,
  • La figure 6 est une vue identique à la figure 5, en position basse du levier, après un premier pompage,
  • La figure 6a est une vue identique à la figure 5a, le levier étant en position basse après un premier pompage,
  • La figure 7 est une vue identique à la figure 5, le dispositif étant dans une position de fin de course après un troisième pompage,
  • La figure 7a est une vue identique à la figure 6a, dans la position du dispositif correspondant à la figure 7,
  • La figure 8 est une vue identique à la figure 5, le dispositif étant dans une position d'après passage du ressort au-delà de la ligne de passage du point mort,
  • La figure 8a est une vue identique à la figure 6a, dans la position du dispositif correspondant à la figure 8,
  • La figure 9 est une vue identique à la figure 5, dans une position d'inversion du sens de rappel du levier de manoeuvre,
  • La figure 9a est une vue identique à la figure 5a, dans une position du dispositif correspondant à la figure 9,
  • La figure 10 est une vue identique à la figure 5, dans une position fermée du dispositif et,
  • La figure 10a est une vue identique à la figure 5a, dans la position du dispositif correspondant à la figure 10.
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, illustrating an embodiment of a control device according to the invention comprising a pumping lever, in an open position of the contacts,
  • The figure 2 is an exploded perspective view of this same device,
  • The figure 3 is a front view of this same device, in an open position of the contacts,
  • The figure 4 is a side view of the same device, just before the compression spring passes beyond the dead center line,
  • The figure 5 is a partial side view of the same device, in the open position of the contacts, mainly illustrating the drive gear and pumping pawl, in the high position of the pumping lever,
  • The figure 5a is a partial side view, illustrating only the toothed retaining wheel and the retaining pawl, in this same position of the device,
  • The figure 6 is a view identical to the figure 5 in the low position of the lever, after a first pumping,
  • The figure 6a is a view identical to the figure 5a the lever being in the low position after a first pumping,
  • The figure 7 is a view identical to the figure 5 the device being in an end position after a third pumping,
  • The figure 7a is a view identical to the figure 6a in the position of the device corresponding to the figure 7 ,
  • The figure 8 is a view identical to the figure 5 , the device being in a position after passage of the spring beyond the line of passage of the neutral point,
  • The figure 8a is a view identical to the figure 6a in the position of the device corresponding to the figure 8 ,
  • The figure 9 is a view identical to the figure 5 in a position reversing the return direction of the operating lever,
  • The figure 9a is a view identical to the figure 5a in a position of the device corresponding to the figure 9 ,
  • The figure 10 is a view identical to the figure 5 , in a closed position of the device and,
  • The figure 10a is a view identical to the figure 5a in the position of the device corresponding to the figure 10 .

Sur les figures 1 à 4 est représenté un dispositif de commande D des contacts d'un appareil de coupure électrique tel un interrupteur ou un sectionneur, selon l'invention. Ce dispositif D comporte une manivelle de commande constituée dans cette réalisation particulière par une manivelle de manoeuvre 1 (figs.2,4) en liaison pivot par rapport à un bâti B. Cette manivelle de manoeuvre 1 est reliée de manière articulée, par l'une la de ses extrémités 1a, 1b, à l'une 2a dite première, des extrémités 2a,2b d'une bielle de liaison 2, ladite bielle de liaison 2 étant, à son extrémité 2b dite seconde, opposée à la première, reliée de manière articulée à une manivelle d'actionnement 3 d'un arbre à came 4 relié à un dispositif d'entraînement du contact mobile de l'appareil (non représenté). Ce dispositif comporte également une manivelle de compression 5 reliée de manière articulée au bâti, autour du même axe X que l'axe X autour duquel est reliée au bâti la manivelle de manoeuvre 1.On the Figures 1 to 4 there is shown a control device D of the contacts of an electrical switching device such as a switch or a disconnector, according to the invention. This device D comprises a control crank constituted in this particular embodiment by a crank 1 ( figs.2 , 4 ) in pivot connection relative to a frame B. This operating crank 1 is connected in an articulated manner, by one of its ends 1a, 1b, to the one 2a said first, ends 2a, 2b of a connecting rod 2, said link rod 2 being, at its end 2b said second, opposite to the first, hingedly connected to an actuating crank 3 of a camshaft 4 connected to a drive device of the mobile contact of the apparatus (not shown). This device also comprises a compression crank 5 connected in an articulated manner to the frame, about the same axis X as the axis X about which the maneuvering crank 1 is connected to the frame.

Cette manivelle de compression 5 comporte une extrémité 5a reliée de manière articulée à une partie d'extrémité 6a d'une bielle de guidage 6 d'un ressort 7. Cette bielle de guidage 6 comporte un ensemble de bielles 8 permettant la compression et le guidage dudit ressort de manoeuvre 7 interposé entre les deux parties d'extrémités 6a, 6b de la bielle 6 reliées mécaniquement respectivement aux deux extrémités 7a, 7b dudit ressort 7.This compression crank 5 comprises an end 5a hingedly connected to an end portion 6a of a guide rod 6 of a spring 7. This guide rod 6 comprises a set of rods 8 for compression and guiding said operating spring 7 interposed between the two end portions 6a, 6b of the connecting rod 6 mechanically connected respectively to the two ends 7a, 7b of said spring 7.

Ce dispositif comporte également un levier de manoeuvre 16 monté en rotation par rapport au bâti et apte à entraîner la manivelle de compression précitée 5. Ce dispositif est complété par un verrou 10 (fig.4) pour retenir la manivelle de commande 1 et donc le contact mobile, dans sa position initiale pendant la compression du ressort 7 avant le passage dudit ressort au-delà d'une ligne L dite de passage de point mort, cette ligne étant la ligne passant à la fois par l'axe X d'articulation de la manivelle de compression 5 et de la manivelle de manoeuvre 1 au bâti B, et l'axe Y d'articulation de la bielle de liaison 2 à la manivelle d'actionnement 3 de l'arbre à came 4.This device also comprises an operating lever 16 rotatably mounted relative to the frame and capable of driving the above-mentioned compression crank 5. This device is completed by a lock 10 ( fig.4 ) to hold the control crank 1 and thus the moving contact, in its initial position during the compression of the spring 7 before the passage of said spring beyond a line L called dead-point crossing, this line being the passing line both by the X axis of articulation of the compression crank 5 and the operating crank 1 to the frame B, and the Y axis of articulation of the connecting rod 2 to the actuating crank 3 of the camshaft 4.

Le fonctionnement du dispositif décrit précédemment est le suivant :The operation of the device described above is as follows:

Lors d'une manoeuvre de fermeture, le levier 16 est entraîné vers le bas dans le sens antihoraire jusqu'à ce que la manivelle de compression 5 et la bielle 6 à ressort 7 franchissent la ligne L de passage de point mort. Durant cette étape, le verrou 10 maintient l'axe d'entrainement 12 de la manivelle de manoeuvre 1 dans une position dite d'ouverture des contacts. Au-delà de la position de passage du point mort, le système est entraîné de manière autonome sous l'effet du ressort de manoeuvre 7. Pendant cette rotation de la manivelle de compression 5 sous l'effet du ressort de manoeuvre, un doigt de levage (non représenté) prévu sur la manivelle, entraîne le verrou de maintien 10 dans le sens horaire de manière que l'axe d'entraînement 12 de la manivelle de manoeuvre 1 soit libéré d'une encoche 11 prévue dans le verrou de maintien 10 dans laquelle elle était retenue. En même temps, une butée dite de fermeture (non représentée) de la manivelle de compression 5 est entrée en contact avec l'axe d'entraînement 12 de la manivelle de manoeuvre 1. Il s'ensuit un entraînement de la manivelle de manoeuvre 1 par la manivelle de compression 5, ce qui entraîne le mouvement de la bielle de liaison 2. Ce mouvement de la bielle de liaison 2 entraîne la manivelle d'actionnement 3 dans le sens anti-horaire, sous l'effet de la force exercée par la bielle de liaison 2 et la manivelle de manoeuvre 1 et sous l'action du ressort de manoeuvre 7. Il en résulte une rotation de l'arbre à came 4 dans le sens anti-horaire, ce qui entraîne la mise en contact et en pression de contact des contacts fixe et mobile.During a closing maneuver, the lever 16 is driven downwards in the counterclockwise direction until the compression crank 5 and the spring rod 7 pass through the dead center line L. During this step, the latch 10 maintains the drive shaft 12 of the operating crank 1 in a so-called opening position of the contacts. Beyond the neutral position of the passage, the system is driven autonomously under the effect of the operating spring 7. During this rotation of the 5 under the effect of the operating spring, a lifting finger (not shown) provided on the crank, drives the latch 10 in the clockwise direction so that the drive shaft 12 of the crank maneuver 1 is released from a notch 11 provided in the holding lock 10 in which it was retained. At the same time, a so-called closure stop (not shown) of the compression crank 5 has come into contact with the drive shaft 12 of the operating crank 1. This results in a drive of the operating crank 1 by the compression crank 5, which causes the movement of the connecting rod 2. This movement of the connecting rod 2 drives the operating crank 3 in the counterclockwise direction, under the effect of the force exerted by the connecting rod 2 and the operating crank 1 and under the action of the operating spring 7. This results in a rotation of the cam shaft 4 in the counterclockwise direction, which causes the contacting and contact pressure of the fixed and mobile contacts.

La manoeuvre d'ouverture du dispositif est réalisée de la manière suivante :The opening operation of the device is carried out as follows:

A partir de cette position fermée, le levier 16 est entraîné vers le haut dans le sens horaire jusqu'à ce que la manivelle de compression 5 et la bielle de liaison 2 franchissent la ligne L de passage de point mort. Durant cette étape, le ressort de manoeuvre 7 maintient dans la position fermée les contacts.From this closed position, the lever 16 is driven upward in the clockwise direction until the compression crank 5 and the connecting rod 2 cross the line L neutral passage. During this step, the operating spring 7 keeps the contacts in the closed position.

Au-delà de la position de passage du point mort, le système est entraîné de manière autonome sous l'effet du ressort de manoeuvre 7. Celui-ci entraîne le déplacement de la manivelle de compression 5, laquelle dans son mouvement prend en charge l'axe d'entraînement 12 de la manivelle de manoeuvre 1 par l'intermédiaire d'une butée dite d'ouverture (non représentée) de la manivelle de compression 5. Au contact de la butée d'entraînement avec l'axe d'entraînement 12 de la manivelle de manoeuvre 1, un différentiel de couple entraîne la rotation de la manivelle de manoeuvre let de l'arbre à came 4, par l'intermédiaire de la bielle de liaison 2, et en conséquence, l'ouverture des contacts.Beyond the neutral position of the passage, the system is driven autonomously under the effect of the operating spring 7. This causes the displacement of the compression crank 5, which in its movement supports the drive shaft 12 of the operating crank 1 by means of a so-called opening stop (not shown) of the compression crank 5. In contact with the drive abutment with the drive shaft 12 of the operating crank 1, a torque differential causes the rotation of the operating crank let of the cam shaft 4, through the connecting rod 2, and accordingly, the opening of the contacts.

Pour une description plus précise du fonctionnement du dispositif, on pourra se reporter à la demande de brevet française N° 07 06548 du même demandeur.For a more precise description of the operation of the device, reference may be made to French patent application No. 07 06548 from the same applicant.

Le dispositif de commande selon l'invention comporte un dispositif de pompage comportant une manivelle dite d'accroche ressort 13 en liaison pivot sur un arbre dit de manoeuvre 14, ledit arbre étant apte à réaliser l'entraînement de la manivelle de compression 5, ladite manivelle dite d'accroche-ressort 13 étant apte à être entraînée en rotation par une manivelle d'entraînement 15 solidaire en rotation de l'arbre de manoeuvre, lors des opérations d'ouverture et de fermeture. Un levier de pompage 16 est monté en liaison pivot autour de l'arbre de manoeuvre 14. Un ressort 17 de rappel du levier 16 en liaison pivot sur l'arbre de manoeuvre 14, est en appui par l'une 17a de ses extrémités, sur un axe 19 appartenant au levier de pompage 16, et par son extrémité opposée 17b, sur un axe 18 appartenant à la manivelle 13 d'accroche-ressort. Ce ressort 17 a pour fonction de rappeler le levier de pompage 16 lors des manoeuvres de pompage. Un ensemble de deux roues dentées 20,21 respectivement dite de manoeuvre 20 et de retenue 21 et quatre basculeurs 22,23,24,25 est monté rigidement autour de cet arbre 14 en étant solidarisé à cet arbre. Un cliquet de pompage 26 est monté en liaison pivot dans la chape 27 du levier de pompage 16, ledit cliquet 26 étant rappelé par un ressort de cliquet 28 dont une extrémité 28a est en liaison pivot dans la chape 27 du levier de pompage et l'autre extrémité 28b est en liaison pivot sur le cliquet 26. Un cliquet de retenue 29 est monté en liaison pivot sur le bâti B. Ce cliquet est rappelé par un ressort de cliquet 30 dont une extrémité 30a est en liaison pivot sur le bâti B et l'autre extrémité 30b est en liaison pivot sur le cliquet 29. Le cliquet de pompage 26 est destiné à coopérer avec la roue dentée dite de manoeuvre 20, laquelle est montée autour de l'arbre de manoeuvre à l'intérieur de la chape, de même qu'un premier basculeur 22 et un second basculeur 23 dont la fonction sera expliqué dans ce qui suit, lesdits basculeurs étant disposés respectivement de part et d'autre de ladite roue dentée de manoeuvre 20.The control device according to the invention comprises a pumping device comprising a so-called spring hook crank 13 pivotally connected to a so-called maneuvering shaft 14, said shaft being able to carry the drive of the compression crank 5, said crank spring hook 13 being adapted to be driven in rotation by a drive crank 15 integral in rotation with the operating shaft, during the opening and closing operations. A pumping lever 16 is pivotally mounted around the operating shaft 14. A spring 17 for returning the lever 16 pivotally connected to the operating shaft 14 is supported by one 17a of its ends, on an axis 19 belonging to the pumping lever 16, and by its opposite end 17b, on an axis 18 belonging to the spring-hook crank 13. This spring 17 serves to recall the pumping lever 16 during pumping maneuvers. A set of two gear wheels 20,21, respectively said operating 20 and retaining 21 and four rockers 22,23,24,25 is rigidly mounted around the shaft 14 being secured to this shaft. A pumping pawl 26 is pivotally mounted in the yoke 27 of the pumping lever 16, said pawl 26 being recalled by a pawl spring 28, one end 28a of which is pivotally connected in the yoke 27 of the pumping lever and the another end 28b is pivotally connected to the pawl 26. A retaining pawl 29 is mounted pivotally connected to the frame B. This pawl is recalled by a pawl spring 30, one end 30a of which is pivotally connected to the frame B and the other end 30b is pivotally connected to the pawl 29. The pawl pawl 26 is intended to cooperate with the so-called maneuver gear 20, which is mounted around the operating shaft inside the yoke, as a first rocker 22 and a second rocker 23 whose function will be explained in the following, said rockers being disposed respectively on either side of said drive gear 20.

Le cliquet de retenue 29 est destiné à coopérer avec l'autre 21 des deux roues dentées 20,21, appelée roue dentée de retenue, laquelle est entourée d'un basculeur dit troisième 24 et d'un basculeur dit quatrième 25, montés respectivement de part et d'autre de ladite roue dentée de retenue.The retaining pawl 29 is intended to cooperate with the other 21 of the two toothed wheels 20, 21, called the retaining toothed wheel, which is surrounded by a so-called third rocker 24 and a so-called fourth rocker 25, mounted respectively from both sides of said retaining gear.

La roue dentée de manoeuvre 20 comporte une première série de dents 20a orientées selon un certain sens et une seconde série de dents 20b orientées selon un sens opposé au précédent.The drive gear 20 comprises a first series of teeth 20a oriented in a certain direction and a second series of teeth 20b oriented in a direction opposite to the previous one.

Le cliquet de pompage 26 comporte une première partie 26a destinée à coopérer avec la première série précitée 20a et une seconde partie 26b destinée à coopérer avec la seconde série précitée 20b de manière à entraîner la roue dentée de manoeuvre 20 et donc l'arbre de manoeuvre 14, dans un sens ou dans l'autre en fonction de la position du cliquet de pompage 26. Ce cliquet 26 peut être déplacé par l'intermédiaire de moyens de changement de position entre une première position dans laquelle ledit cliquet est rappelé par le ressort de rappel 28 du cliquet de pompage 26 de manière que sa première partie 26a coopère avec la première série de dents précitée 20a, et une seconde position dans laquelle le cliquet 26 est rappelé par ledit ressort 28 de manière que sa seconde partie 26b coopère avec la seconde série de dents précitée 20b.The pumping pawl 26 comprises a first part 26a intended to cooperate with the aforesaid first series 20a and a second part 26b intended to cooperate with the aforementioned second series 20b so as to drive the drive gear 20 and thus the operating shaft 14, in one direction or the other depending on the position of the pumping pawl 26. This pawl 26 can be moved by means of change means position between a first position in which said pawl is returned by the return spring 28 of the pump pawl 26 so that its first portion 26a cooperates with the first set of teeth 20a and a second position in which the pawl 26 is recalled by said spring 28 so that its second portion 26b cooperates with the second set of teeth 20b.

Les moyens de changement de position du cliquet de pompage 26 sont constitués par deux basculeurs 22,23 solidaires de l'arbre de manoeuvre et apte à coopérer avec ledit cliquet 26 de manière à inverser le couple du cliquet de pompage. L'un 22 de ces basculeurs réalise le changement de position lorsque le levier 16 est activé du bas vers le haut et l'autre 23 de ces basculeurs réalise le changement de position lorsque le levier 16 est activé du haut vers le bas.The means for changing the position of pawl pawl 26 are constituted by two rockers 22,23 integral with the operating shaft and adapted to cooperate with said pawl 26 so as to reverse the torque of the pumping pawl. One of these rockers performs the change of position when the lever 16 is activated from the bottom to the top and the other 23 of these rockers performs the change of position when the lever 16 is activated from the top down.

La roue dentée de retenue 21 comporte une première série de dents 21 a orientées selon un certain sens et une seconde série de dents 21b orientées selon un sens opposé au précédent.The toothed retaining wheel 21 comprises a first series of teeth 21a oriented in a certain direction and a second series of teeth 21b oriented in a direction opposite to the previous one.

De même, le cliquet de retenue 29 comporte une première partie 29a destinée à coopérer avec la première série précitée de dents 21a du cliquet de retenue, et une seconde partie 29b destinée à coopérer avec la seconde série précitée de dents 21b, de manière à empêcher la rotation en sens inverse de la roue dentée de retenue 21 et donc de l'arbre de manoeuvre 14, dans un sens ou dans l'autre du déplacement du levier de pompage, en fonction de la position du cliquet de retenue. Ce cliquet peut être déplacé par l'intermédiaire de moyens de changement de position entre une première position dans laquelle ledit cliquet 29 est rappelé par le ressort de rappel 30 du cliquet de retenue 29 de manière que sa première partie 29a coopère avec la première série de dents précitée 21a, et une seconde position dans laquelle le cliquet de retenue 29 est rappelé par ledit ressort 30 de manière que sa seconde partie 29b coopère avec la seconde série de dents précitée 21b.Similarly, the retaining pawl 29 has a first part 29a intended to cooperate with the aforementioned first set of teeth 21a of the retaining pawl, and a second part 29b intended to cooperate with the aforementioned second series of teeth 21b, so as to prevent the rotation in the opposite direction of the retaining toothed wheel 21 and thus of the operating shaft 14, in one direction or the other of the displacement of the pumping lever, as a function of the position of the retaining pawl. This pawl can be moved via means of position change between a first position in which said pawl 29 is returned by the return spring 30 of the retaining pawl 29 so that its first portion 29a cooperates with the first set of teeth 21a, and a second position in which the retaining pawl 29 is biased by said spring 30 so that its second portion 29b cooperates with the second set of teeth 21b.

Les moyens de changement de position du cliquet de retenue sont constitués par deux basculeurs 24,25 solidaires de l'arbre de manoeuvre 14 et aptes à coopérer avec ledit cliquet de manière à inverser le couple du ressort du cliquet de retenue 29. L'un 24 de ces basculeurs réalise le changement de position lorsque le levier 16 est activé du bas vers le haut, et l'autre 25 de ces basculeurs réalise le changement de position lorsque le levier est activé du haut vers le bas.The means for changing the position of the retaining pawl consist of two rockers 24,25 secured to the operating shaft 14 and able to cooperate with said pawl so as to reverse the spring torque of the retaining pawl 29. 24 of these rockers performs the change of position when the lever 16 is activated from the bottom up, and the other 25 of these rockers performs the change of position when the lever is activated from top to bottom.

Le fonctionnement du dispositif de pompage selon l'invention va être décrit ci-après en référence aux figures :The operation of the pumping device according to the invention will be described hereinafter with reference to the figures:

La manoeuvre de fermeture est réalisée selon les étapes suivantes :The closing maneuver is performed according to the following steps:

En position de repos ou d'ouverture des contacts, tel qu'illustré sur la figure 5, le levier de pompage 16 est maintenu en position haute par le ressort 17 de rappel du levier. Le cliquet de pompage 26 est en position pour prendre en charge la roue dentée de manoeuvre 20 avec un certain jeu. Le cliquet de retenue 29 est en appui sur la roue dentée de retenue 21 tel qu'illustré sur 1a figure 5a.In the position of rest or opening of the contacts, as illustrated on the figure 5 , the pumping lever 16 is held in the high position by the spring 17 of return of the lever. The pumping pawl 26 is in position to take over the driving gear 20 with a certain clearance. The retaining pawl 29 bears against the retaining gear 21 as illustrated in FIG. figure 5a .

Puis, le levier de pompage est déplacé vers le bas jusqu'à prise en charge par le cliquet de pompage 26 de la roue dentée de manoeuvre 20, ladite partie 26b du cliquet coopérant avec la série 20b de dents. La poursuite de l'entraînement du levier vers le bas engendre la rotation de la roue dentée de manoeuvre 20, laquelle entraîne l'arbre de manoeuvre 14, lequel entraîne la manivelle de compression 5 et donc la compression du ressort de compression 7.Then, the pumping lever is moved down until supported by the pawl pawl 26 of the drive gear 20, said portion 26b of the pawl cooperating with the series 20b of teeth. Continued driving of the lever downwards causes rotation of the drive gear 20, which drives the operating shaft 14, which drives the compression crank 5 and thus the compression of the compression spring 7.

A la fin de chaque manoeuvre de pompage tel qu'illustré sur les figures 6 et 6a, le cliquet de retenue 29 se met en place devant une dent de la série 21b de la roue dentée de retenue 21 sous l'action du ressort 30 du cliquet de retenue.At the end of each pumping maneuver as illustrated on Figures 6 and 6a , the retaining pawl 29 is put in place in front of a tooth of the series 21b of the retaining toothed wheel 21 under the action of the spring 30 of the retaining pawl.

Puis, il y a un relâchement du levier de pompage qui remonte sous l'action du ressort de rappel du levier 17 jusqu'à une position haute de façon à ce que le cliquet de pompage 26 soit de nouveau en position face à une nouvelle dent de la roue dentée de pompage 20 (fig.6). Durant cette manoeuvre, le cliquet de retenue 29 empêche la rotation en sens inverse de l'arbre de manoeuvre 14 soumis à l'action du ressort de manoeuvre 7.Then, there is a relaxation of the pumping lever which rises under the action of the return spring of the lever 17 to a high position so that the pawl 26 is again in position facing a new tooth of the pumping gear 20 ( fig.6 ). During this maneuver, the retaining pawl 29 prevents the rotation in the opposite direction of the operating shaft 14 subjected to the action of the operating spring 7.

Cette manoeuvre de pompage est renouvelée jusqu'à ce que le ressort de manoeuvre franchisse la ligne de passage de point mort L. Les figures 7 et 7a illustrent les positions du dispositif après un troisième pompage, tandis que les figures 8 et 8a illustrent la position du dispositif après la position de passage du point mort.This pumping maneuver is renewed until the operating spring crosses the dead center line L. Figures 7 and 7a illustrate the positions of the device after a third pumping, while the Figures 8 and 8a illustrate the position of the device after the neutral position.

Au-delà de cette ligne L, le ressort de manoeuvre 7 devient moteur. Il entraîne alors en rotation l'arbre de manoeuvre 14, la manivelle d'accroche ressort 13 par l'intermédiaire de la manivelle d'entraînement 15, les deux roues dentées 20,21 et les basculeurs 22,23,24,25. (fig.8 et fig.8a)Beyond this line L, the operating spring 7 becomes motor. It then rotates the operating shaft 14, the crank spring 13 by means of the drive crank 15, the two gears 20,21 and rockers 22,23,24,25. ( fig.8 and fig.8a )

Pendant cette rotation, le sens de rappel du ressort de rappel 17 du levier de pompage 16 change de sens. Ceci est réalisé par le fait que les appuis sur l'axe 18 de la manivelle d'accroche 13 et sur l'axe 19 du levier de pompage 16 s'intervertissent.During this rotation, the return direction of the return spring 17 of the pumping lever 16 changes direction. This is achieved by the fact that the bearings on the axis 18 of the attachment crank 13 and on the axis 19 of the pumping lever 16 are reversed.

Pendant cette même rotation, le basculeur dit second 23 fait tourner le cliquet de pompage 26 de façon à ce que le couple du ressort de rappel 28 du cliquet 26 s'inverse aussi (fig.9). De même, le basculeur 25 fait tourner le cliquet de retenue 29 de manière que sa partie 29a coopère avec une première série de dents 21 a. Ainsi, le système est en position fermée et est prêt pour une nouvelle manoeuvre d'ouverture.During this same rotation, the so-called second rocker 23 rotates the pump pawl 26 so that the torque of the return spring 28 of the pawl 26 also reverses ( fig.9 ). Similarly, the rocker 25 rotates the retaining pawl 29 so that its portion 29a cooperates with a first set of teeth 21a. Thus, the system is in the closed position and is ready for a new opening maneuver.

La manoeuvre d'ouverture s'effectue selon les étapes suivantes :The opening maneuver is carried out according to the following steps:

En position dite de repos fermée telle qu'illustrée sur les figures 10 et 10a, le levier 16 de pompage est maintenu en position basse par le ressort de rappel 17 du levier. Le cliquet de pompage 26 est en position pour prendre en charge la roue dentée 20 avec un certain jeu.In the so-called closed rest position as illustrated on the Figures 10 and 10a , the pump lever 16 is held in the low position by the return spring 17 of the lever. Pumping pawl 26 is in position to support gear 20 with some clearance.

Le cliquet de retenue 29 est en appui sur la roue dentée de retenue 21.The retaining pawl 29 bears on the retaining toothed wheel 21.

La seule différence par rapport aux manoeuvres de fermeture précédemment décrites tient en ce que les manoeuvres de pompage se réalisent du bas vers le haut.The only difference with respect to the closing maneuvers previously described is that the pumping maneuvers are carried out from bottom to top.

Ce système permet de manoeuvrer un mécanisme de forte énergie qui ne peut être actionné en une seule manoeuvre. Ce dispositif est bien adapté à l'adjonction d'une motorisation se raccordant sur l'axe de manoeuvre car il n'interfère pas son fonctionnement.This system allows to maneuver a high energy mechanism that can not be operated in a single maneuver. This device is well suited to the addition of a motor connecting to the axis of maneuver because it does not interfere with its operation.

Claims (13)

  1. Device (D) for controlling the opening and the closing of the contacts in an electrical apparatus comprising a manoeuvring crank (1) linked in an articulated manner relative to a frame B, said manoeuvring crank (1) being suitable for being driven in rotation by a control member of said control device between a first position corresponding to a closed position of the contacts and a second position corresponding to an open position of the contacts, a compression spring (7) linked in an articulated manner by one, called first, of its ends, to a compression crank (5), and linked mechanically by its opposite end, called second, to the mobile contact, and a link rod (2) linked in an articulated manner by one of its ends, called first, to said manoeuvring crank and linked mechanically by its opposite end, called second, to the mobile contact, said spring (7) being suitable for being compressed by its first end, by said compression crank, to a so-called dead point crossing position from which the spring becomes motive and acts upon its decompression, on the mobile contact and the manoeuvring crank (1), so as to displace the mobile contact, the spring being compressed by the rotation of a manoeuvring shaft (14) suitable for producing the driving of the compression crank (5),
    characterized in that the control member comprises a pumping device, and in that the direction of manoeuvring of the manoeuvring means of said pumping device takes place in a direction, upon the manoeuvring of the control device in the direction of the opening of the contacts, and in a direction opposite to the preceding direction upon the manoeuvring of the control device in the direction of the closing of the contacts, the changing of the direction of manoeuvring of said manoeuvring means of said pumping device being controlled by the compression spring (7) cooperating with means (22, 23, 24, 25) for reversing the direction of manoeuvring when it passes beyond the dead point crossing position, and in that the pumping device P comprises the manoeuvring shaft (14) suitable for driving the compression crank (5), a pumping lever (16) mounted to rotate about the manoeuvring shaft (14), between a first position and a second position, said lever (16) being returned into the first (or the second) position by return means (17) of the lever (16), a so-called manoeuvring toothed wheel (20) and a so-called retaining toothed wheel (21) secured to the manoeuvring shaft (14), a pumping ratchet (26) mounted to rotate relative to the pumping lever (16) and returned by means (28) for returning the pumping ratchet to the position of engagement with the manoeuvring toothed wheel (20) so as to allow the driving of the manoeuvring toothed wheel when the lever (16) is displaced from the first to the second position (or respectively between the second and the first positions), a retaining ratchet (29) mounted pivotably linked relative to the frame B and returned by means (30) for returning the retaining ratchet to the position of engagement with the retaining toothed wheel (21) so as to prevent the rotation of the retaining toothed wheel (21) and therefore of the manoeuvring shaft (14) in the direction that is the reverse of the preceding direction, during the return of the pumping lever (16) by the return means (17) of the lever to the first position (or respectively the second position).
  2. Control device according to Claim 1, characterized in that it comprises means (22, 23, 24, 25) for changing the direction of return of the return means of the pumping lever.
  3. Control device according to Claim 1 or 2, characterized in that the manoeuvring toothed wheel (20) comprises a first series of teeth (20a) oriented in a certain direction and a second series of teeth (20b) oriented in a direction opposite to the preceding direction, and in that the pumping ratchet (26) comprises a first part (26a) intended to cooperate with the abovementioned first series (20a) and a second part (26b) intended to cooperate with the abovementioned second series (20b) so as to drive the manoeuvring toothed wheel (20) and therefore the manoeuvring shaft (14), in one direction or, respectively, in the other direction depending on the position of the pumping ratchet (26), which can be moved via means (22, 23) for changing the position of the ratchet (26), between a first position in which the ratchet is returned by the abovementioned return means so that its first part (26a) cooperates with the abovementioned first series of teeth (20a), and a second position in which the ratchet (26) is returned by the return means of the ratchet so that its second part (26b) cooperates with the abovementioned second series of teeth (20b).
  4. Control device according to any one of Claims 1 to 3, characterized in that the return means (28) of the pumping ratchet (26) comprise a spring (28) comprising a first end (28a) pivotably linked relative to the pumping lever (16) and a second end (28b) pivotably linked to the ratchet (26).
  5. Control device according to Claim 3 or 4, characterized in that the means for changing the position of the pumping ratchet (26) comprise means for reversing the torque of the spring (28) of the pumping ratchet (26), these means for reversing the torque of the spring of the pumping ratchet (26) comprising two rocker arms (22, 23) secured to the manoeuvring shaft (14) and suitable for cooperating with said ratchet so as to reverse the torque of the spring of the pumping ratchet.
  6. Control device according to any one of Claims 1 to 5, characterized in that the retaining toothed wheel (21) comprises a first series of teeth (21 a) oriented in a certain direction and a second series of teeth (21 b) oriented in a direction opposite to the preceding direction, and in that the retaining ratchet (29) comprises a first part (29a) intended to cooperate with the abovementioned first series (21 a) and a second part (29b) intended to cooperate with the abovementioned second series (21 b) so as to prevent the rotation in the reverse direction of the retaining toothed wheel (29) and therefore of the manoeuvring shaft (14), depending on the position of the retaining ratchet (21), which can be moved via means (24, 25) for changing the position of the ratchet (29), between a first position in which the ratchet is returned by the return means of the retaining ratchet so that its first part (29a) cooperates with the abovementioned first series of teeth (21 a), and a second position (21 b) in which the ratchet is returned by the return means of the ratchet (28) so that its second part (29b) cooperates with the abovementioned second series of teeth (21 b).
  7. Control device according to any one of Claims 1 to 6, characterized in that the return means of the retaining ratchet comprise a spring (30) comprising a first end (30a) pivotably linked relative to the frame B and a second end (30b) pivotably linked to the retaining ratchet (30).
  8. Control device according to Claim 6 or 7, characterized in that the means (24, 25) for changing the position of the retaining ratchet (30) comprise means for reversing the torque of the spring of the retaining ratchet (30).
  9. Control device according to Claim 8, characterized in that the means for reversing the torque of the spring (30) of the retaining ratchet (29) comprise two rocker arms (24, 25) secured to the manoeuvring shaft (14) and suitable for cooperating with said retaining ratchet so as to reverse the torque of the spring of the retaining ratchet.
  10. Control device according to any one of Claims 7 to 9, characterized in that the means (13, 15, 17) for changing the direction of return of the return means (17) of the pumping lever (16), the means (22, 23) for changing the position of the pumping ratchet (26) and the means (24, 25) for changing the position of the retaining ratchet (29) are actuated by the manoeuvring shaft (14) driven by the compression spring (7) after said spring passes beyond the dead point crossing position.
  11. Control device according to any one of Claims 1 to 10, characterized in that the return means (17) of the pumping lever (16) comprise a spring (17) mounted around the manoeuvring shaft (14) and comprising a first end (17a) bearing on an axis (19) of the pumping lever (16) and a second end (17b) bearing on an axis (18) secured in rotation to the control crank (1, 5).
  12. Control device according to Claim 11, characterized in that the second end (17b) of the spring (17) bears on an axis (18) belonging to a so-called spring hook crank (13) pivotably linked around the manoeuvring shaft (14) and secured in rotation to a driving crank (15) secured in rotation to the manoeuvring shaft (1), in that the two ends (17a, 17b) of the spring (17) are crossed over, and in that the bearing surfaces between the two ends (17a, 17b) of the spring (17) and respectively the pumping lever (16) and the spring hook crank (13) are situated inside a V formed by the ends (17a, 17b) of the spring (17) so that, after the compression spring (7) passes beyond the dead point crossing position driving the rotation of the manoeuvring shaft (14), the two bearing surfaces respectively on the axis (18) of the spring hook crank (13) and on the axis (19) of the pumping lever (16) are inverted.
  13. Control device according to any one of the preceding claims, characterized in that the compression crank (5) and the manoeuvring crank (1) are linked in an articulated manner relative to the frame, said compression crank (5) being linked in an articulated manner to one (7a) of the ends of the compression spring and being driven in rotation by said manoeuvring shaft (14), said manoeuvring crank (1) being linked in an articulated manner to said link rod (2), the device comprising means for allowing the driving of the manoeuvring crank (1) by the compression crank (5) after the compression spring (7) passes beyond the dead point crossing position, so as to bring about the change of position of the mobile contact.
EP09354031.8A 2008-09-05 2009-07-01 Device for controlling the opening and/or closing of the contacts in an electrical device Not-in-force EP2161730B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804891A FR2935833A1 (en) 2008-09-05 2008-09-05 DEVICE FOR CONTROLLING THE OPENING AND / OR CLOSING OF CONTACTS IN AN ELECTRICAL APPARATUS

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EP2161730A1 EP2161730A1 (en) 2010-03-10
EP2161730B1 true EP2161730B1 (en) 2016-06-22

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FR (1) FR2935833A1 (en)

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US9064644B2 (en) 2012-11-14 2015-06-23 Abb Technology Ag Structure for limiting back-travel of interrupters on circuit breakers
FR3083366B1 (en) * 2018-06-29 2020-06-12 Socomec MANUAL CONTROL DEVICE FOR A REMOTE HANDLING SOURCE INVERTER
CN109741977B (en) * 2019-02-28 2024-02-06 福州大学 Quick conversion device of reversing control switch and working method thereof
CN114400160B (en) * 2021-12-16 2024-04-02 北京聚能达电力技术有限公司 Direct-acting isolation mechanism
CN114772405B (en) * 2022-05-17 2023-05-09 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) Epidemic prevention formula elevator that elevator button was automatic disinfects

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FR706548A (en) 1930-11-26 1931-06-25 Monopotassium phosphate
US3475981A (en) * 1967-11-20 1969-11-04 Powell Electric Mfg Co Motor operator for load break switch
US3652815A (en) * 1971-01-14 1972-03-28 Westinghouse Electric Corp Circuit interrupter with motor operated spring charging means including two ratchets and two pawls
FR2651603B1 (en) * 1989-09-07 1991-11-08 Merlin Gerin CONTROL MECHANISM OF A HIGH VOLTAGE MULTIPOLAR SWITCH.
DE4416106A1 (en) * 1994-04-20 1995-10-26 Siemens Ag Clamping device for a spring accumulator

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FR2935833A1 (en) 2010-03-12
ES2592952T3 (en) 2016-12-02

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