EP0997919B1 - Switching device having a mechanical signaling element with three positions - Google Patents

Switching device having a mechanical signaling element with three positions Download PDF

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Publication number
EP0997919B1
EP0997919B1 EP99410124A EP99410124A EP0997919B1 EP 0997919 B1 EP0997919 B1 EP 0997919B1 EP 99410124 A EP99410124 A EP 99410124A EP 99410124 A EP99410124 A EP 99410124A EP 0997919 B1 EP0997919 B1 EP 0997919B1
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EP
European Patent Office
Prior art keywords
indicator
close
ready
pair
state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99410124A
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German (de)
French (fr)
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EP0997919A1 (en
Inventor
Patrick Coudert
Claude Grelier
Eric Pinero
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication date
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Publication of EP0997919A1 publication Critical patent/EP0997919A1/en
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Publication of EP0997919B1 publication Critical patent/EP0997919B1/en
Anticipated expiration legal-status Critical
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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
    • 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
    • H01H2003/3073—Indication of the charge on the spring motor
    • 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
    • H01H3/3015—Charging means using cam devices

Definitions

  • the invention relates to an electrical apparatus of the type described in document EP A 0 222 645, for example a circuit breaker comprising at least one pair of contacts, at least one of which is movable and can take a relative position with respect to the other. closing corresponding to the mechanical and electrical contact and an open position, this circuit breaker being of the type equipped with a cocking mechanism provided with an energy accumulator and an opening mechanism.
  • the arming mechanism comprises a so-called closing spring capable of passing from an armed state to a released state, a so-called closure lock capable of locking the closing spring in its armed state.
  • the closing spring is associated with the movable contact so that the expansion of the closing spring causes the movable contact towards its closed position.
  • the arming and closing mechanism further comprises a drive mechanism whose driving member, for example an oscillating lever, drives a freewheel mechanism adapted to bring the closing spring into its armed state.
  • the opening mechanism comprises a so-called opening spring capable of passing from an armed state to a released state and from the released state to the armed state, and a so-called opening lock capable of locking the spring of opening in its armed state.
  • the opening spring is associated with the movable contact so that the expansion of the opening spring causes the movable contact to an open position and that the movement of the movable contact towards its closed position causes the arming opening spring.
  • Such a circuit breaker can be in different states, in particular a closed state, an open state disarmed, an open state armed.
  • the opening lock can be either in the unlocked position, which is generally a rest position in which the lock is resiliently biased, or in the locking position.
  • the latch can indeed be permanently solicited in the latter position, for example by a trigger activating it because of a persistent electrical fault on the line, or by an opening push button itself locked by a latch externally to allow intervention on the equipment.
  • the circuit breaker should in practice be closed only when three conditions are met: the arming mechanism must be armed, the switch bar must be in the open position, and the opening lock must be in its locking position .
  • the conjunction of these three conditions defines a so-called "ready to close” state of the circuit breaker.
  • the 1989 Merlin Gerin Low Voltage Distribution Catalog references a Masterpact circuit breaker with an indicator of this state ready to close the switchgear.
  • the internal operation of this device of the state of the art is shown in FIGS. 3.
  • the arming mechanism 10 of the circuit breaker 12 comprises a spring energy accumulator 14 cooperating with a transmission lever 16.
  • the lever 16 is pivotally mounted about a fixed axis 18 and comprises a roller 20 interfering with a Arming cam 22 mounted on a shaft 24.
  • the shaft 24 supports a secondary cam 26 indexing the state of the circuit breaker 12, interfering with a finger 28 of a sight 30 pivoting about a fixed axis 32.
  • the indicator light 30 comprises a wall 34 in a sector of a cylinder, visible through a window 36 of the dashboard 38 of the front face of the apparatus.
  • the indicator 30 can take two positions: one, shown in Figures 2 and 3, representative of the unarmed state of the arming mechanism 10 and the other, shown in Figure 1, the armed state. In the armed position of the cocking mechanism, that is to say when the spring 14 is maximally bandaged, in FIG. 1, the finger 28 falls into a notch 40 of the indexing cam 26 and the indicator 30 pivots.
  • the indicator light 30 also includes an arm 44 acting on a drawer 46, so that the drawer 46 is pushed to the left in the figures, as long as the circuit breaker is not in its armed state.
  • the circuit breaker has an opening indicator 48 visible in FIG. 3 and mounted on an axis 50 extending that of the cocking indicator 30, in a plane parallel to that of FIG. 1.
  • the opening indicator 48 is recalled to an angular position not shown, in which it reveals through a window 52 of the dashboard 38 a symbol of the open state of the circuit breaker.
  • the indicator light 48 also has a finger 54 which interferes with a cam 56 carried by the switching bar 58 when the latter reaches its closed position, so as to rotate the indicator light 48, which is in the position shown in FIG. Figure 3, in which it reveals through the window 52 a symbol of the closed state of the circuit breaker.
  • an arm 60 secured to the light interferes with the drawer 46 so that the drawer 46 is pushed to the left in the figures until the circuit breaker is in its open state.
  • the opening mechanism of the circuit breaker 12 furthermore includes an opening latch 64 capable of taking a locking position, represented in FIG.
  • FIG. 2 in which it prevents the passage of the switching bar 58 from its closed position to its position. opening, and an unlocking position, shown in Figures 1 and 3, wherein it allows this passage.
  • the opening latch 64 has an arm 66 acting on the slide 46, and pushing it to the left in FIG. 2 as long as the latch is in the unlocking position.
  • the drawer 46 is elastically biased to the right in the figures, but it can reach the position of Figure 1 only when the three conditions of the state "ready to close" are joined. In this position, the indicator spool 46 activates a not shown electrical contact, which activates an indicator light of the dashboard 38.
  • EP-A-0 721 647 To solve this problem, it has been proposed in EP-A-0 721 647 to provide a mechanical indicator specific to the state ready to close the apparatus, taking information on a moving part whose position is specific to the state ready to close.
  • This solution is relatively heavy to implement, because of the many specific parts that it involves and its size. In addition, it gives the human operator overabundant information that is not always practical.
  • the present invention therefore aims to provide the operator with mechanical information representative of the ready-to-close state of the apparatus, in an inexpensive, compact and practical form of reading.
  • the indicator is kinematically connected to a transmission member disposed between the closure control member and the energy accumulator, so that the transmission member is able to transmit the mechanical order of the organ.
  • closing command to the closing lock if and only if the indicator is in the "ready to close” position.
  • the indicator becomes multifunctional, since it controls the inactivation of the closure control member, resulting in a reduction in the number of parts.
  • the disengagement function of the closure control member is useful to avoid vacuum closures, that is to say on an apparatus whose opening lock is in the unlocked position. Indeed, a vacuum closure causes a large energy discharge that must be absorbed by end stops dimensioned for less significant shocks.
  • the transmission member does not interfere with the closure control member when the indicator is not in its "ready to close” position, so that the control member is disengaged.
  • the inactivation of the closing control member is done by disengagement: in practice, the operator who operates the closing control member does not transmit any mechanical stress to the closure lock, the body of transmission or seeing.
  • the indicator comprises a cooperation surface adapted to cooperate directly or indirectly with the transmission member.
  • the indicator is pivotally mounted about an axis.
  • the indicator comprises a cooperation surface capable of cooperating directly or indirectly with the opening lock.
  • the indicator comprises a cooperation surface adapted to cooperate directly or indirectly with the pair or pairs of contact members, in particular with a switching bar connecting the movable contact members.
  • the indicator comprises a cooperation surface capable of cooperating directly or indirectly with the cocking mechanism, in particular with its drive device.
  • the kinematic connection between the light and the opening latch, the switching bar, the arming mechanism or the transmission member may not implement a cam, but any other type of adequate connection, for example by cables.
  • the indicator comprises a cooperation surface, constituted for example by an arm or a cam, adapted to cooperate directly or indirectly with an electric switch so as to close it if and only if the indicator is in its "ready to to close ".
  • the electrical information thus obtained makes it possible to send a signal back to the dashboard of the circuit breaker and to internal or external monitoring devices.
  • the circuit breaker comprises a pair of contact members 72, 74 separable by pole, the movable contact member 72 is connected by a connecting rod 76 to a switching rod 58 common to all poles, and a device for controlling the opening and closing of the poles, equipped with an energy accumulator.
  • the switching bar 58 is a shaft driving the contact members of the circuit breaker between an open position and their closed position.
  • the movable contact member is itself in two parts, one constituting a support pivotally mounted about a fixed axis and biased by the connecting rod 76, the other pivotally mounted about an axis of the first, and carrying the contact pads.
  • the control device comprises a kinematic chain opening and closing 62, visible in Figures 4 and 5, comprising a transmission lever 16, a linkage 78, a hook 84 and an opening pawl 86.
  • the linkage 78 is connected at one end 80 to a crank of the switching bar, while its other end 82 is mounted on the opening hook 84 pivoting.
  • the hook 84 is itself retained in position by the opening pawl 86 retained by an opening lock 64.
  • the linkage 78 can assume a folded position corresponding to an opening position of the switching bar 58, and a extended position corresponding to the closing position of the switching rod 58.
  • An opening spring 88 working in tension connects the connecting pivot 80 of the linkage rod to the switching bar and a fixed cleat, so that it recalls the switching rod 58 in the open position, and is tensioned automatically when closing the poles.
  • the control device also comprises an energy storage arming mechanism 10 visible in FIG. 5, the arming of which is operated via a reset cam 22 keyed on an arming shaft 24.
  • the cocking shaft 24 is driven clockwise in the figures, by a ratchet and ratchet device, not shown.
  • the cocking cam 22 cooperates with a roller 20 of a cocking lever 16.
  • the cocking lever 16 supports a connecting pin 88 with an elastic energy accumulator comprising a compression spring 14, said closing spring , guided in a telescopic support.
  • the cocking lever 16 also belongs to the kinematic chain opening and closing, since it also has a finger 90 cooperating with the linkage 78, so that the pivoting of the cocking lever 16 during the trigger the closing spring 14 drives the linkage 78 and the switching rod 58 in the closed position.
  • the cocking cam In the armed position of FIG. 5, the cocking cam is held in position by a locking pawl 91, itself locked in position by a closing latch 70.
  • a dashboard 38 of the circuit breaker 12 has a closing push button 68 and a mechanical indicator 30 indicating the armed state or not of the apparatus.
  • the indicator light 30 constitutes a lever pivoting about an axis 32 and having a viewing face 34 in the sector of a cylinder passing in front of a window 36 of the front face of the circuit breaker 12. It is biased by a tension spring 92 in the direction time on the figures.
  • the indicator light 30 has a first arm 28 having an active surface 29 cooperating with an indexing cam 26 integral with the arming shaft 24.
  • the indexing cam 26 has a notch 40 in which is free to lodge the arm 28 when the arming shaft 24 reaches its armed position, in the positions of Figures 7 to 9.
  • the indicator has a second arm 54 whose active surface 55 interferes with the switching bar 58 in the position of Figure 7.
  • the indicator has a third arm 94 interfering with an active surface 95 with an arm 96 of the opening latch 64 when it takes its unlocking position in FIG. 9.
  • the indicator also has a fourth arm 44 having an active surface 45 cooperates with a transmission spool 46.
  • the spool has a guide oblong 98 cooperating with a fixed pivot 100, giving it a degree of freedom of translation and a degree of freedom of rotation.
  • the drawer is resiliently biased to the right in FIGS. 6 to 9, in a position where it is able to cooperate with the push-button 68, so as to transmit to the closing latch 70 a manual closing order on the button. button.
  • the operation of the device is as follows.
  • the switching bar 58 is in the closed position and the arming of the energy accumulator is not started.
  • the first arm 28 of the indicator is based on the periphery 42 of the indexing cam 26 so that the indicator 30 takes a first position in which it reveals through the window a portion of the cylindrical sector 34 bearing a characteristic symbol of the 'unarmed' state of the circuit breaker.
  • the slide 46 is biased by the third arm 44 of the indicator 30 outside its position of interference with the push button 68 and the locking latch 70, so that the closing push-button 68 is inoperative .
  • the first arm 28 of the indicator is opposite the notch 40 of the indexing cam. Its pivoting is however restricted by an interference of the second arm 54 with the arm of the switching bar 58 in the closed position.
  • the indicator 30 pivots, under the stress of its return spring 92, to the position of Figure 7. In this position, the slide 46 is always biased by the third arm 44 of the indicator 30 outside its position d interference with the push button 68 and the latch 70, so that the closing push-button 68 is still inoperative.
  • the indicator light 30 reveals through the window a portion of the cylinder sector 34 bearing a symbol of the "disengaged armed state" of the circuit breaker, that is to say a state in which the closing of the circuit breaker does not occur. is not allowed, although the cocking spring 14 is banded.
  • the closing push-button 68 If the operator acts on the closing push-button 68 from the position of FIG. 8, the latter pivots about its axis, rotates the drawer 46 clockwise, until the latter interferes with the closing latch 70 and brings it into its unlocked position.
  • the pivoting of the closing latch 70 releases the reduction pawl 91 and the lever 16 which, under the force of the closing spring 14, pivots in a pulsating manner, simultaneously bringing the cam 22 and the shaft 24 in the disarmed position.
  • the finger 90 of the cocking lever 16 causes the deployment of the linkage 78 and the pivoting of the switching rod 58 in the closed position.
  • the circuit breaker At the end of this phase, the circuit breaker is in the position of Figure 6.
  • the invention has been described in connection with a circuit breaker. However, it is also applicable to any switchgear energy accumulator, for example to an apparatus operating as a switch.
  • the apparatus may be monopolar, in which case the bar of switching and the movable contact member may be completely integral, or even merged, or multipole. It may be limiter, in which case there is a hinge between the part of the contact member carrying the contact pads and the part of the contact member connected to the switching bar, or non-limiting, in which case this joint is not always necessary.
  • the invention applies both to low voltage switchgear and to high voltage switchgear.
  • the indicator can be pivoted around an imaginary axis. It can also take the form of a drawer moving in translation in front of the window.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Trip Switchboards (AREA)
  • Patch Boards (AREA)

Description

L'invention concerne un appareillage électrique du genre décrit dans le document EP A 0 222 645, par exemple un disjoncteur comportant au moins une paire de contacts dont l'un au moins est mobile et peut prendre par rapport à l'autre une position de fermeture correspondant au contact mécanique et électrique et une position d'ouverture, ce disjoncteur étant du type équipé d'un mécanisme d'armement muni d'un accumulateur d'énergie et d'un mécanisme d'ouverture. Le mécanisme d'armement comporte un ressort dit de fermeture apte à passer d'un état armé à un état libéré, un verrou dit de fermeture apte à verrouiller le ressort de fermeture dans son état armé. Le ressort de fermeture est associé au contact mobile de façon à ce que la détente du ressort de fermeture entraîne le contact mobile vers sa position de fermeture. Le mécanisme d'armement et de fermeture comporte en outre un mécanisme d'entraînement dont l'organe menant, par exemple une manette oscillante, entraîne un mécanisme à roue libre apte à amener le ressort de fermeture dans son état armé. Le mécanisme d'ouverture comporte un ressort dit d'ouverture apte à passer d'un état armé à un état libéré et de l'état libéré à l'état armé, et un verrou dit d'ouverture apte à verrouiller le ressort d'ouverture dans son état armé. Le ressort d'ouverture est associé au contact mobile de façon à ce que la détente du ressort d'ouverture entraîne le contact mobile vers une position d'ouverture et à ce que le déplacement du contact mobile vers sa position de fermeture entraîne l'armement du ressort d'ouverture.The invention relates to an electrical apparatus of the type described in document EP A 0 222 645, for example a circuit breaker comprising at least one pair of contacts, at least one of which is movable and can take a relative position with respect to the other. closing corresponding to the mechanical and electrical contact and an open position, this circuit breaker being of the type equipped with a cocking mechanism provided with an energy accumulator and an opening mechanism. The arming mechanism comprises a so-called closing spring capable of passing from an armed state to a released state, a so-called closure lock capable of locking the closing spring in its armed state. The closing spring is associated with the movable contact so that the expansion of the closing spring causes the movable contact towards its closed position. The arming and closing mechanism further comprises a drive mechanism whose driving member, for example an oscillating lever, drives a freewheel mechanism adapted to bring the closing spring into its armed state. The opening mechanism comprises a so-called opening spring capable of passing from an armed state to a released state and from the released state to the armed state, and a so-called opening lock capable of locking the spring of opening in its armed state. The opening spring is associated with the movable contact so that the expansion of the opening spring causes the movable contact to an open position and that the movement of the movable contact towards its closed position causes the arming opening spring.

Un tel disjoncteur peut se trouver dans différents états, en particulier un état fermé, un état ouvert désarmé, un état ouvert armé. Dans les états ouvert armé et désarmé, le verrou d'ouverture peut se trouver soit en position déverrouillée, qui est généralement une position de repos dans laquelle est rappelé élastiquement le verrou, soit en position de verrouillage. Le verrou peut en effet être sollicité en permanence dans cette dernière position, par exemple par un déclencheur l'activant du fait d'un défaut électrique persistant sur la ligne, ou par un bouton-poussoir d'ouverture lui-même verrouillé par un verrou externe pour permettre une intervention sur l'appareillage.Such a circuit breaker can be in different states, in particular a closed state, an open state disarmed, an open state armed. In the open armed and disarmed states, the opening lock can be either in the unlocked position, which is generally a rest position in which the lock is resiliently biased, or in the locking position. The latch can indeed be permanently solicited in the latter position, for example by a trigger activating it because of a persistent electrical fault on the line, or by an opening push button itself locked by a latch externally to allow intervention on the equipment.

Or le disjoncteur ne doit en pratique être refermé que lorsque trois conditions sont réunies : le mécanisme d'armement doit être armé, le barreau de commutation doit être en position d'ouverture, et le verrou d'ouverture doit être dans sa position de verrouillage. La conjonction de ces trois conditions définit un état dit « prêt à fermer » du disjoncteur. Le catalogue distribution basse tension Merlin Gerin de 1989 référence un disjoncteur de marque Masterpact, présentant un indicateur de cet état prêt à fermer de l'appareillage. Le fonctionnement interne de ce dispositif de l'état de la technique est représenté sur les figures 1 à 3. Le mécanisme d'armement 10 du disjoncteur 12 comporte un accumulateur d'énergie à ressort 14 coopérant avec un levier de transmission 16. Le levier 16 est monté pivotant autour d'un axe fixe 18 et comporte un galet 20 interférant avec une came d'armement 22 montée sur un arbre 24. L'arbre 24 supporte une came secondaire 26 d'indexation de l'état du disjoncteur 12, interférant avec un doigt 28 d'un voyant 30 pivotant autour d'un axe fixe 32. Le voyant 30 comporte une paroi 34 en secteur de cylindre, visible au travers d'une fenêtre 36 du tableau de bord 38 de la face avant de l'appareillage. Le voyant 30 peut prendre deux positions : l'une, représentée sur les figures 2 et 3, représentative de l'état non armé du mécanisme d'armement 10 et l'autre, représentée sur la figure 1, de l'état armé. En position armé du mécanisme d'armement, c'est-à-dire lorsque le ressort 14 est bandé au maximum, sur la figure 1, le doigt 28 tombe dans une encoche 40 de la came d'indexation 26 et le voyant 30 pivote dans une position telle, qu'apparaît dans la fenêtre 36 un symbole de l'état armé du disjoncteur. Lorsque le mécanisme n'est pas armé, le doigt 28 interfère avec la périphérie cylindrique 42 de la came 26, de sorte qu'apparaît dans la fenêtre une partie différente de la paroi 34 portant un symbole correspondant. Le voyant 30 comporte par ailleurs un bras 44 agissant sur un tiroir 46, de telle façon que le tiroir 46 soit repoussé vers la gauche sur les figures, tant que le disjoncteur n'est pas dans son état armé. Par ailleurs, le disjoncteur possède un voyant d'ouverture 48 visible sur la figure 3 et monté sur un axe 50 prolongeant celui du voyant d'armement 30, dans un plan parallèle à celui de la figure 1. Le voyant d'ouverture 48 est rappelé vers une position angulaire non représentée, dans laquelle il laisse apparaître au travers d'une fenêtre 52 du tableau de bord 38 un symbole de l'état ouvert du disjoncteur. Le voyant 48 comporte par ailleurs un doigt 54 qui interfère avec une came 56 portée par le barreau de commutation 58 lorsque celui-ci atteint sa position de fermeture, de manière à faire pivoter le voyant 48, qui se retrouve dans la position représentée sur la figure 3, dans laquelle il laisse apparaître au travers de la fenêtre 52 un symbole de l'état fermé du disjoncteur. Dans cette position, un bras 60 solidaire du voyant vient interférer avec le tiroir 46 de telle façon que le tiroir 46 soit repoussé vers la gauche sur les figures tant que le disjoncteur n'est pas dans son état ouvert. Le mécanisme d'ouverture du disjoncteur 12 comporte par ailleurs un verrou d'ouverture 64 apte à prendre une position de verrouillage, représentée sur la figure 2, dans laquelle il interdit le passage du barreau de commutation 58 de sa position de fermeture à sa position d'ouverture, et une position de déverrouillage, représentée sur les figures 1 et 3, dans laquelle il autorise ce passage. Le verrou d'ouverture 64 possède un bras 66 agissant sur le tiroir 46, et le repoussant vers la gauche sur la figure 2, tant que le verrou se trouve en position de déverrouillage. Le tiroir 46 est rappelé élastiquement vers la droite sur les figures, mais il ne peut atteindre la position de la figure 1 que lorsque les trois conditions de l'état « prêt à fermer » sont réunies. Dans cette position, le tiroir indicateur 46 active un contact électrique non représenté, qui active un voyant lumineux du tableau de bord 38. Par ailleurs, il assure dans cette position, et dans cette position seulement, une liaison cinématique entre un bouton de fermeture 68 et un verrou de fermeture 70 destiné à libérer la came d'armement 22, de sorte que tout ordre de fermeture par le bouton poussoir 68 est inopérant, tant que l'appareillage n'est pas dans son état prêt à fermer. Ce dispositif présente l'inconvénient de ne pas comporter de voyant mécanique, c'est-à-dire de dispositif purement mécanique visible par l'opérateur et indiquant par sa position ou son état l'état « prêt à fermer » de l'appareillage.Or the circuit breaker should in practice be closed only when three conditions are met: the arming mechanism must be armed, the switch bar must be in the open position, and the opening lock must be in its locking position . The conjunction of these three conditions defines a so-called "ready to close" state of the circuit breaker. The 1989 Merlin Gerin Low Voltage Distribution Catalog references a Masterpact circuit breaker with an indicator of this state ready to close the switchgear. The internal operation of this device of the state of the art is shown in FIGS. 3. The arming mechanism 10 of the circuit breaker 12 comprises a spring energy accumulator 14 cooperating with a transmission lever 16. The lever 16 is pivotally mounted about a fixed axis 18 and comprises a roller 20 interfering with a Arming cam 22 mounted on a shaft 24. The shaft 24 supports a secondary cam 26 indexing the state of the circuit breaker 12, interfering with a finger 28 of a sight 30 pivoting about a fixed axis 32. The indicator light 30 comprises a wall 34 in a sector of a cylinder, visible through a window 36 of the dashboard 38 of the front face of the apparatus. The indicator 30 can take two positions: one, shown in Figures 2 and 3, representative of the unarmed state of the arming mechanism 10 and the other, shown in Figure 1, the armed state. In the armed position of the cocking mechanism, that is to say when the spring 14 is maximally bandaged, in FIG. 1, the finger 28 falls into a notch 40 of the indexing cam 26 and the indicator 30 pivots. in such a position that appears in the window 36 a symbol of the armed state of the circuit breaker. When the mechanism is not armed, the finger 28 interferes with the cylindrical periphery 42 of the cam 26, so that appears in the window a different portion of the wall 34 carrying a corresponding symbol. The indicator light 30 also includes an arm 44 acting on a drawer 46, so that the drawer 46 is pushed to the left in the figures, as long as the circuit breaker is not in its armed state. Moreover, the circuit breaker has an opening indicator 48 visible in FIG. 3 and mounted on an axis 50 extending that of the cocking indicator 30, in a plane parallel to that of FIG. 1. The opening indicator 48 is recalled to an angular position not shown, in which it reveals through a window 52 of the dashboard 38 a symbol of the open state of the circuit breaker. The indicator light 48 also has a finger 54 which interferes with a cam 56 carried by the switching bar 58 when the latter reaches its closed position, so as to rotate the indicator light 48, which is in the position shown in FIG. Figure 3, in which it reveals through the window 52 a symbol of the closed state of the circuit breaker. In this position, an arm 60 secured to the light interferes with the drawer 46 so that the drawer 46 is pushed to the left in the figures until the circuit breaker is in its open state. The opening mechanism of the circuit breaker 12 furthermore includes an opening latch 64 capable of taking a locking position, represented in FIG. 2, in which it prevents the passage of the switching bar 58 from its closed position to its position. opening, and an unlocking position, shown in Figures 1 and 3, wherein it allows this passage. The opening latch 64 has an arm 66 acting on the slide 46, and pushing it to the left in FIG. 2 as long as the latch is in the unlocking position. The drawer 46 is elastically biased to the right in the figures, but it can reach the position of Figure 1 only when the three conditions of the state "ready to close" are joined. In this position, the indicator spool 46 activates a not shown electrical contact, which activates an indicator light of the dashboard 38. Furthermore, it ensures in this position, and in this position only, a kinematic connection between a closure button 68 and a closure latch 70 for releasing the cocking cam 22, so that any closing order by the push button 68 is inoperative, as long as the apparatus is not not in his state ready to close. This device has the disadvantage of not having a mechanical indicator, that is to say purely mechanical device visible by the operator and indicating by its position or its state "ready to close" state of the equipment .

Pour résoudre ce problème, il a été proposé dans le document EP-A-0 721 647 de prévoir un voyant mécanique spécifique de l'état prêt à fermer de l'appareillage, prenant une information sur une pièce mobile dont une position est spécifique de l'état prêt à fermer. Cette solution est relativement lourde à mettre en oeuvre, du fait des nombreuses pièces spécifiques qu'elle met en jeu et de son encombrement. De plus, elle livre à l'opérateur humain des informations surabondantes qui ne s'avèrent pas toujours pratiques.To solve this problem, it has been proposed in EP-A-0 721 647 to provide a mechanical indicator specific to the state ready to close the apparatus, taking information on a moving part whose position is specific to the state ready to close. This solution is relatively heavy to implement, because of the many specific parts that it involves and its size. In addition, it gives the human operator overabundant information that is not always practical.

La présente invention vise donc à délivrer à l'opérateur une information mécanique représentative de l'état prêt à fermer de l'appareillage, sous une forme peu coûteuse, peu encombrante et de lecture pratique.The present invention therefore aims to provide the operator with mechanical information representative of the ready-to-close state of the apparatus, in an inexpensive, compact and practical form of reading.

Selon l'invention, ce problème est résolu grâce à un appareillage de coupure comportant :

  • un ou plusieurs pôles comportant chacun au moins une paire d'organes de contact, l'un au moins des organes de contact de chaque paire étant mobile de telle manière que la paire d'organes de contact soit apte à prendre une position d'ouverture et une position de fermeture,
  • un ressort d'ouverture,
  • un accumulateur d'énergie,
  • un mécanisme d'armement lié cinématiquement à l'accumulateur d'énergie de manière à charger l'accumulateur d'énergie quelle que soit la position de la ou des paires d'organes de contact,
  • un verrou dit de fermeture apte à verrouiller l'accumulateur d'énergie dans son état chargé,
  • une chaîne cinématique reliant l'accumulateur d'énergie, le ressort d'ouverture et le ou les organes de contact mobiles de telle sorte que la décharge de l'accumulateur d'énergie déplace la ou les paires d'organes de contact vers leur position de fermeture et bande le ressort d'ouverture, et que le ressort d'ouverture bandé rappelle la ou les paires d'organes de contact vers leur position d'ouverture,
  • un verrou dit d'ouverture apte à coopérer avec la chaîne cinématique et à prendre une position de verrouillage dans laquelle il interdit le passage de la ou des paires d'organes de contact de leur position de fermeture à leur position d'ouverture et une position déverrouillée dans laquelle il autorise ce passage,
  • un dispositif de signalisation comportant :
    • un voyant lié cinématiquement au mécanisme d'armement et apte à prendre une position « non armé » et au moins une deuxième position, et à prendre sa position « non armé » si et seulement si l'accumulateur d'énergie n'est pas dans son état chargé,
    • un indicateur mécanique d'un état « prêt à fermer » de l'appareillage, relié cinématiquement à la ou aux paires d'organes de contact et au verrou d'ouverture, prenant une position dite « prêt à fermer » si et seulement si la ou les paires d'organes de contact sont en position d'ouverture, l'accumulateur d'énergie est chargé et le verrou d'ouverture est dans sa position de verrouillage,

appareillage dans lequel le voyant constitue l'indicateur mécanique de l'état « prêt à fermer » de l'appareillage, la position « prêt à fermer », constituant une troisième position du voyant, distincte de la position « non armé » et de la deuxième position du voyant, la deuxième position du voyant étant prise lorsque l'accumulateur d'énergie est chargé et que l'appareillage n'est pas dans son état « prêt à fermer ».According to the invention, this problem is solved by means of a switchgear apparatus comprising:
  • one or more poles each comprising at least one pair of contact members, at least one of the contact members of each pair being movable in such a manner that the pair of contact members is able to assume an open position and a closed position,
  • an opening spring,
  • an energy accumulator,
  • an arming mechanism kinematically connected to the energy accumulator so as to charge the energy accumulator irrespective of the position of the pair or pairs of contact members,
  • a locking latch adapted to lock the energy accumulator in its charged state,
  • a kinematic chain connecting the energy accumulator, the opening spring and the movable contact member (s) so that the discharge of the energy accumulator moves the pair (s) of contact members towards their position closing and banding the opening spring, and that the opening spring biased recalls the pair or pairs of contact members to their open position,
  • an opening said latch adapted to cooperate with the kinematic chain and to take a locking position in which it prohibits the passage of the pair or pairs contact members from their closed position to their open position and an unlocked position in which it authorizes this passage,
  • a signaling device comprising:
    • a light kinematically connected to the arming mechanism and adapted to take an "unarmed" position and at least a second position, and to take its "unarmed" position if and only if the energy accumulator is not in his busy state,
    • a mechanical indicator of a "ready to close" state of the apparatus, kinematically connected to the one or more pairs of contact members and the opening lock, taking a "ready to close" position if and only if the or the pairs of contact members are in the open position, the energy accumulator is charged and the opening lock is in its locking position,

apparatus in which the indicator is the mechanical indicator of the "ready to close" state of the apparatus, the position "ready to close", constituting a third position of the indicator, distinct from the "unarmed" position and the second position of the indicator, the second position of the indicator being taken when the energy accumulator is loaded and the apparatus is not in its "ready to close" state.

La structure obtenue est plus simple puisqu'elle ne nécessite qu'un seul voyant, là ou deux étaient nécessaires. Cette disposition est de plus avantageuse d'un point de vue ergonomique, puisque l'opérateur reçoit uniquement des informations pertinentes et non inutilement redondantes, lui indiquant l'état « non armé », « armé non prêt à fermer » et « prêt à fermer ». En effet, la position « non prêt à fermer » du voyant de l'état de la technique n'ajoute aucune information lorsque le voyant d'armement se trouve en position « non armé ».The structure obtained is simpler since it requires only one indicator, where two or two were needed. This arrangement is more advantageous from an ergonomic point of view, since the operator only receives relevant information and not unnecessarily redundant, indicating the state "unarmed", "armed not ready to close" and "ready to close ". In fact, the "not ready to close" position of the prior art light does not add any information when the arming light is in the "unarmed" position.

Préférentiellement, le voyant est relié cinématiquement à un organe de transmission disposé entre l'organe de commande de fermeture et l'accumulateur d'énergie, de telle sorte que l'organe de transmission est apte à transmettre l'ordre mécanique de l'organe de commande de fermeture au verrou de fermeture si et seulement si le voyant est en position « prêt à fermer ». Le voyant devient alors multifonctions, puisqu'il pilote l'inactivation de l'organe de commande de fermeture, d'où une réduction du nombre de pièces. La fonction de débrayage de l'organe de commande de fermeture est utile pour éviter les fermetures à vide, c'est-à-dire sur un appareillage dont le verrou d'ouverture est en position de déverrouillage. En effet, une fermeture à vide provoque une décharge énergétique importante qui doit être absorbée par des butées de fin de course dimensionnées pour des chocs moins importants. Préférentiellement, l'organe de transmission n'interfère pas avec l'organe de commande de fermeture lorsque le voyant n'est pas dans sa position « prêt à fermer », de sorte que l'organe de commande est débrayé. Dans ce cas, l'inactivation de l'organe de commande de fermeture se fait par débrayage : en pratique, l'opérateur qui manoeuvre l'organe de commande de fermeture ne transmet aucune sollicitation mécanique au verrou de fermeture, à l'organe de transmission ou au voyant. Préférentiellement, le voyant comporte une surface de coopération apte à coopérer directement ou indirectement avec l'organe de transmission.Preferably, the indicator is kinematically connected to a transmission member disposed between the closure control member and the energy accumulator, so that the transmission member is able to transmit the mechanical order of the organ. closing command to the closing lock if and only if the indicator is in the "ready to close" position. The indicator becomes multifunctional, since it controls the inactivation of the closure control member, resulting in a reduction in the number of parts. The disengagement function of the closure control member is useful to avoid vacuum closures, that is to say on an apparatus whose opening lock is in the unlocked position. Indeed, a vacuum closure causes a large energy discharge that must be absorbed by end stops dimensioned for less significant shocks. Preferably, the transmission member does not interfere with the closure control member when the indicator is not in its "ready to close" position, so that the control member is disengaged. In this case, the inactivation of the closing control member is done by disengagement: in practice, the operator who operates the closing control member does not transmit any mechanical stress to the closure lock, the body of transmission or seeing. Preferably, the indicator comprises a cooperation surface adapted to cooperate directly or indirectly with the transmission member.

Préférentiellement, le voyant est monté pivotant autour d'un axe. Alternativement, il est possible de mettre en oeuvre l'invention avec un voyant mobile en translation, ou selon toute autre trajectoire adéquate.Preferably, the indicator is pivotally mounted about an axis. Alternatively, it is possible to implement the invention with a moving light in translation, or according to any other suitable trajectory.

Préférentiellement, le voyant comporte une surface de coopération apte à coopérer directement ou indirectement avec le verrou d'ouverture.Preferably, the indicator comprises a cooperation surface capable of cooperating directly or indirectly with the opening lock.

Avantageusement, le voyant comporte une surface de coopération apte à coopérer directement ou indirectement avec le ou les paires d'organes de contact, en particulier avec un barreau de commutation reliant les organes de contact mobiles.Advantageously, the indicator comprises a cooperation surface adapted to cooperate directly or indirectly with the pair or pairs of contact members, in particular with a switching bar connecting the movable contact members.

Préférentiellement, le voyant comporte une surface de coopération apte à coopérer directement ou indirectement avec le mécanisme d'armement, en particulier avec son dispositif d'entraînement. Alternativement, la liaison cinématique entre le voyant et le verrou d'ouverture, le barreau de commutation, le mécanisme d'armement ou l'organe de transmission peuvent ne pas mettre en oeuvre de came, mais tout autre type de liaison adéquat, par exemple par câbles.Preferably, the indicator comprises a cooperation surface capable of cooperating directly or indirectly with the cocking mechanism, in particular with its drive device. Alternatively, the kinematic connection between the light and the opening latch, the switching bar, the arming mechanism or the transmission member may not implement a cam, but any other type of adequate connection, for example by cables.

Alternativement, il est également possible de mettre en oeuvre l'invention avec une pièce mobile intermédiaire distincte du voyant, liée cinématiquement à celui-ci, et coopérant par l'intermédiaire de cames ou de tout autre moyen adéquat avec le verrou d'ouverture, le barreau de commutation, le mécanisme d'armement et, le cas échéant, l'organe de transmission.Alternatively, it is also possible to implement the invention with an intermediate movable part separate from the indicator, kinematically connected thereto, and cooperating via cams or any other suitable means with the opening latch, the switching bar, the arming mechanism and, if appropriate, the transmission member.

Avantageusement, le voyant comporte une surface de coopération, constituée par exemple par un bras ou une came, apte à coopérer directement ou indirectement avec un interrupteur électrique de manière à fermer celui-ci si et seulement si le voyant est dans son état « prêt à fermer ». L'information électrique ainsi obtenue permet de renvoyer un signal vers le tableau de bord du disjoncteur et vers des dispositifs de surveillance internes ou externes.Advantageously, the indicator comprises a cooperation surface, constituted for example by an arm or a cam, adapted to cooperate directly or indirectly with an electric switch so as to close it if and only if the indicator is in its "ready to to close ". The electrical information thus obtained makes it possible to send a signal back to the dashboard of the circuit breaker and to internal or external monitoring devices.

D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre d'un mode de réalisation de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés dans lesquels:

  • la figure 1, déjà commentée, représente une vue du mécanisme de l'état de la technique, dans l'état prêt à fermer ;
  • la figure 2, déjà commentée, représente une vue du mécanisme de l'état de la technique, dans l'état ouvert non armé ;
  • la figure 3, déjà commentée, représente une vue du mécanisme de l'état de la technique, dans l'état fermé non armé ;
  • la figure 4 est un schéma de principe d'un dispositif d'ouverture des pôles d'un disjoncteur selon un mode préféré de réalisation de l'invention, en position d'ouverture ;
  • la figure 5 est un schéma de principe d'un dispositif d'armement à accumulation d'énergie du disjoncteur de la figure 4, en position armée ;
  • la figure 6 représente un dispositif selon un premier mode de réalisation de l'invention, dans l'état fermé non armé ;
  • la figure 7 représente le dispositif de la figure 6, dans l'état fermé armé ;
  • la figure 8 représente le dispositif de la figure 6, dans l'état prêt à fermer ;
  • la figure 9 représente le dispositif de la figure 6, dans l'état verrouillé ouvert et armé.
Other advantages and features of the invention will emerge from the following description of an embodiment of the invention, given by way of non-limiting example and shown in the accompanying drawings, in which:
  • Figure 1, already commented, represents a view of the mechanism of the state of the art, in the state ready to close;
  • Figure 2, already commented, represents a view of the mechanism of the state of the art, in the open state unarmed;
  • Figure 3, already commented, represents a view of the mechanism of the state of the art, in the unarmed closed state;
  • Figure 4 is a block diagram of a device for opening the poles of a circuit breaker according to a preferred embodiment of the invention, in the open position;
  • Figure 5 is a block diagram of an energy storage arming device of the circuit breaker of Figure 4, in the armed position;
  • FIG. 6 represents a device according to a first embodiment of the invention, in the unarmed closed state;
  • Figure 7 shows the device of Figure 6, in the closed state armed;
  • FIG. 8 represents the device of FIG. 6, in the ready-to-close state;
  • Figure 9 shows the device of Figure 6, in the locked state open and armed.

En référence aux figures 4 et 5, le disjoncteur comporte une paire d'organes de contact 72, 74 séparables par pôle, dont l'organe de contact mobile 72 est lié par une bielle 76 à un barreau de commutation 58 commun à l'ensemble des pôles, et un dispositif de commande de l'ouverture et de la fermeture des pôles, équipé d'un accumulateur d'énergie. Le barreau de commutation 58 est un arbre entraînant les organes de contact du disjoncteur entre une position d'ouverture et leur position de fermeture. L'organe de contact mobile est lui-même en deux parties, l'une constituant un support monté pivotant autour d'un axe fixe et sollicité par la bielle 76, l'autre montée pivotant autour d'un axe de la première, et portant les pastilles de contact. Le dispositif de commande comprend une chaîne cinématique d'ouverture et de fermeture 62, visible sur les figures 4 et 5, comportant un levier de transmission 16, un embiellage 78, un crochet 84 et un cliquet d'ouverture 86. L'embiellage 78 est reliée par une extrémité 80 à une manivelle du barreau de commutation, alors que son autre extrémité 82 est montée sur le crochet d'ouverture 84 pivotant. Le crochet 84 est lui-même retenu en position par le cliquet d'ouverture 86 retenu par un verrou d'ouverture 64. L'embiellage 78 peut prendre une position repliée correspondant à une position d'ouverture du barreau de commutation 58, et une position déployée correspondant à la position de fermeture du barreau de commutation 58. Un ressort d'ouverture 88 travaillant en tension relie le pivot de liaison 80 de l'embiellage au barreau de commutation et un taquet fixe, de telle manière qu'il rappelle le barreau de commutation 58 en position d'ouverture, et se tend automatiquement lors de la fermeture des pôles.Referring to Figures 4 and 5, the circuit breaker comprises a pair of contact members 72, 74 separable by pole, the movable contact member 72 is connected by a connecting rod 76 to a switching rod 58 common to all poles, and a device for controlling the opening and closing of the poles, equipped with an energy accumulator. The switching bar 58 is a shaft driving the contact members of the circuit breaker between an open position and their closed position. The movable contact member is itself in two parts, one constituting a support pivotally mounted about a fixed axis and biased by the connecting rod 76, the other pivotally mounted about an axis of the first, and carrying the contact pads. The control device comprises a kinematic chain opening and closing 62, visible in Figures 4 and 5, comprising a transmission lever 16, a linkage 78, a hook 84 and an opening pawl 86. The linkage 78 is connected at one end 80 to a crank of the switching bar, while its other end 82 is mounted on the opening hook 84 pivoting. The hook 84 is itself retained in position by the opening pawl 86 retained by an opening lock 64. The linkage 78 can assume a folded position corresponding to an opening position of the switching bar 58, and a extended position corresponding to the closing position of the switching rod 58. An opening spring 88 working in tension connects the connecting pivot 80 of the linkage rod to the switching bar and a fixed cleat, so that it recalls the switching rod 58 in the open position, and is tensioned automatically when closing the poles.

Le dispositif de commande comprend par ailleurs un mécanisme d'armement 10 à accumulation d'énergie visible sur la figure 5, dont l'armement est opéré par l'intermédiaire d'une came de réarmement 22 clavetée sur un arbre d'armement 24. L'arbre d'armement 24 est entraîné dans le sens horaire sur les figures, par un dispositif à cliquet et roue à rochet, non représenté. La came d'armement 22 coopère avec un galet 20 d'un levier d'armement 16. Le levier d'armement 16 supporte un doigt 88 de liaison avec un accumulateur d'énergie élastique comportant un ressort de compression 14, dit ressort de fermeture, guidé dans un support télescopique. Le levier d'armement 16 appartient également à la chaîne cinématique d'ouverture et de fermeture, puisqu'il possède également un doigt 90 coopérant avec l'embiellage 78, de telle sorte que le pivotement du levier d'armement 16 lors de la détente du ressort de fermeture 14 entraîne l'embiellage 78 et le barreau de commutation 58 en position de fermeture. Dans la position armé de la figure 5, la came d'armement est retenue en position par un cliquet de fermeture 91, lui-même verrouillé en position par un verrou de fermeture 70.The control device also comprises an energy storage arming mechanism 10 visible in FIG. 5, the arming of which is operated via a reset cam 22 keyed on an arming shaft 24. The cocking shaft 24 is driven clockwise in the figures, by a ratchet and ratchet device, not shown. The cocking cam 22 cooperates with a roller 20 of a cocking lever 16. The cocking lever 16 supports a connecting pin 88 with an elastic energy accumulator comprising a compression spring 14, said closing spring , guided in a telescopic support. The cocking lever 16 also belongs to the kinematic chain opening and closing, since it also has a finger 90 cooperating with the linkage 78, so that the pivoting of the cocking lever 16 during the trigger the closing spring 14 drives the linkage 78 and the switching rod 58 in the closed position. In the armed position of FIG. 5, the cocking cam is held in position by a locking pawl 91, itself locked in position by a closing latch 70.

En références aux figures 6 à 9, un tableau de bord 38 du disjoncteur 12 possède un bouton-poussoir de fermeture 68 et un voyant mécanique 30 indicateur de l'état armé ou non de l'appareillage. Le voyant 30 constitue un levier pivotant autour d'un axe 32 et présentant une face de visualisation 34 en secteur de cylindre, passant devant une fenêtre 36 de la face avant du disjoncteur 12. Il est rappelé par un ressort de tension 92 dans le sens horaire sur les figures. Le voyant 30 possède un premier bras 28 comportant une surface active 29 coopérant avec une came d'indexation 26 solidaire de l'arbre d'armement 24. La came d'indexation 26 comporte une encoche 40 dans laquelle est libre de se loger le bras 28 lorsque l'arbre d'armement 24 atteint sa position armé, dans les positions des figures 7 à 9. Le voyant possède un deuxième bras 54 dont une surface active 55 interfère avec le barreau de commutation 58 dans la position de la figure 7. Le voyant possède un troisième bras 94 interférant par une surface active 95 avec un bras 96 du verrou d'ouverture 64 lorsque celui-ci prend sa position de déverrouillage sur la figure 9. Le voyant possède également un quatrième bras 44 dont une surface active 45 coopère avec un tiroir de transmission 46. Le tiroir possède un oblong 98 de guidage coopérant avec un pivot fixe 100, lui donnant un degré de liberté de translation et un degré de liberté de rotation. Le tiroir est rappelé élastiquement vers la droite sur les figures 6 à 9, dans une position ou il est apte à coopérer avec le bouton-poussoir 68, de manière à transmettre au verrou de fermeture 70 un ordre de fermeture donné manuellement sur le bouton-poussoir.Referring to Figures 6 to 9, a dashboard 38 of the circuit breaker 12 has a closing push button 68 and a mechanical indicator 30 indicating the armed state or not of the apparatus. The indicator light 30 constitutes a lever pivoting about an axis 32 and having a viewing face 34 in the sector of a cylinder passing in front of a window 36 of the front face of the circuit breaker 12. It is biased by a tension spring 92 in the direction time on the figures. The indicator light 30 has a first arm 28 having an active surface 29 cooperating with an indexing cam 26 integral with the arming shaft 24. The indexing cam 26 has a notch 40 in which is free to lodge the arm 28 when the arming shaft 24 reaches its armed position, in the positions of Figures 7 to 9. The indicator has a second arm 54 whose active surface 55 interferes with the switching bar 58 in the position of Figure 7. The indicator has a third arm 94 interfering with an active surface 95 with an arm 96 of the opening latch 64 when it takes its unlocking position in FIG. 9. The indicator also has a fourth arm 44 having an active surface 45 cooperates with a transmission spool 46. The spool has a guide oblong 98 cooperating with a fixed pivot 100, giving it a degree of freedom of translation and a degree of freedom of rotation. The drawer is resiliently biased to the right in FIGS. 6 to 9, in a position where it is able to cooperate with the push-button 68, so as to transmit to the closing latch 70 a manual closing order on the button. button.

Le fonctionnement du dispositif est le suivant.The operation of the device is as follows.

Dans la position de la figure 6, le barreau de commutation 58 est en position de fermeture et l'armement de l'accumulateur d'énergie n'est pas commencé. Le premier bras 28 du voyant repose à la périphérie 42 de la came d'indexation 26 de sorte que le voyant 30 prend une première position dans laquelle il laisse apparaître au travers de la fenêtre une partie du secteur cylindrique 34 portant un symbole caractéristique de l'état « non armé » du disjoncteur. Dans cette position, le tiroir 46 est sollicité par le troisième bras 44 du voyant 30 en dehors de sa position d'interférence avec le bouton-poussoir 68 et le verrou de fermeture 70, de sorte que le bouton-poussoir de fermeture 68 est inopérant.In the position of Figure 6, the switching bar 58 is in the closed position and the arming of the energy accumulator is not started. The first arm 28 of the indicator is based on the periphery 42 of the indexing cam 26 so that the indicator 30 takes a first position in which it reveals through the window a portion of the cylindrical sector 34 bearing a characteristic symbol of the 'unarmed' state of the circuit breaker. In this position, the slide 46 is biased by the third arm 44 of the indicator 30 outside its position of interference with the push button 68 and the locking latch 70, so that the closing push-button 68 is inoperative .

La rotation de l'arbre d'armement 24 dans le sens horaire sur la figure 6, provoque celle de la came d'armement, qui fait pivoter le levier d'armement 16 autour de son axe fixe 18, provoquant la compression du ressort de fermeture 14. En fin de course d'armement, la came d'armement 22 interfère avec le cliquet 91 lui-même verrouillé par le verrou de fermeture en demi-lune 70, interdisant la poursuite de la rotation. Cette position correspond à une zone d'interférence entre la came 22 et le galet 20 du levier 16, dans laquelle le galet 20 devient moteur et la came 22 réceptrice.The rotation of the cocking shaft 24 in the clockwise direction in FIG. 6 causes that of the cocking cam, which pivots the cocking lever 16 about its fixed axis 18, causing the compression of the spring of closure 14. At the end of the arming stroke, the arming cam 22 interferes with the pawl 91 itself locked by the half-moon locking latch 70, preventing further rotation. This position corresponds to an interference zone between the cam 22 and the roller 20 of the lever 16, in which the roller 20 becomes motor and the cam 22 receiver.

En fin de course d'armement, le premier bras 28 du voyant se trouve en face de l'encoche 40 de la came d'indexation. Son pivotement est toutefois restreint par une interférence du deuxième bras 54 avec le bras du barreau de commutation 58 en position de fermeture. Le voyant 30 pivote donc, sous la sollicitation de son ressort de rappel 92, jusqu'à la position de la figure 7. Dans cette position, le tiroir 46 est toujours sollicité par le troisième bras 44 du voyant 30 en dehors de sa position d'interférence avec le bouton-poussoir 68 et le verrou de fermeture 70, de sorte que le bouton-poussoir de fermeture 68 est encore inopérant. Le voyant 30 laisse apparaître au travers de la fenêtre une partie du secteur de cylindre 34 portant un symbole de l'état « armé débrayé » du disjoncteur, c'est-à-dire d'un état dans lequel la fermeture du disjoncteur n'est pas autorisée, bien que le ressort d'armement 14 soit bandé.At the end of the arming stroke, the first arm 28 of the indicator is opposite the notch 40 of the indexing cam. Its pivoting is however restricted by an interference of the second arm 54 with the arm of the switching bar 58 in the closed position. The indicator 30 pivots, under the stress of its return spring 92, to the position of Figure 7. In this position, the slide 46 is always biased by the third arm 44 of the indicator 30 outside its position d interference with the push button 68 and the latch 70, so that the closing push-button 68 is still inoperative. The indicator light 30 reveals through the window a portion of the cylinder sector 34 bearing a symbol of the "disengaged armed state" of the circuit breaker, that is to say a state in which the closing of the circuit breaker does not occur. is not allowed, although the cocking spring 14 is banded.

A partir de la position de la figure 7, le pivotement du verrou d'ouverture 64 libère le cliquet 86, qui libère à son tour le crochet 84, qui pivote de telle sorte que l'embiellage 78 passe un point mort au delà duquel il se replie de manière impulsive, provoquant la rotation du barreau de commutation 58 jusqu'à sa position d'ouverture représentée sur la figure 8, alors que le verrou d'ouverture 64 reprend sa position de repos.From the position of Figure 7, the pivoting of the opening latch 64 releases the pawl 86, which in turn releases the hook 84, which pivots so that the linkage 78 passes a dead point beyond which it is folded impulsively, causing the rotation of the switching bar 58 to its open position shown in Figure 8, while the opening lock 64 returns to its rest position.

Dans cette position, aucun des trois bras 28, 54, 94 du voyant 30 n'est sollicité. Le voyant 30 est donc rappelé dans le sens horaire par le ressort 92, jusqu'à laisser apparaître au travers de la fenêtre un symbole de l'état « prêt à fermer » du disjoncteur. Ce pivotement du voyant libère également le tiroir 46 qui est rappelé vers la droite pour prendre la position de la figure 8.In this position, none of the three arms 28, 54, 94 of the indicator 30 is biased. The indicator light 30 is thus clockwise recalled by the spring 92, until a symbol of the "ready to close" state of the circuit breaker appears through the window. This pivoting of the light also releases the drawer 46 which is recalled to the right to take the position of Figure 8.

Si l'opérateur agit sur le bouton-poussoir de fermeture 68 à partir de la position de la figure 8, celui-ci pivote autour de son axe, fait pivoter le tiroir 46 dans le sens horaire, jusqu'à ce que celui-ci interfère avec le verrou de fermeture 70 et l'amène dans sa position de déverrouillage. Le pivotement du verrou de fermeture 70 libère le cliquet démultiplicateur 91 et le levier 16 qui, sous l'effort du ressort de fermeture 14, pivote de manière impulsionnelle, ramenant simultanément la came 22 et l'arbre 24 en position désarmé. Le doigt 90 du levier d'armement 16 provoque le déploiement de l'embiellage 78 et le pivotement du barreau de commutation 58 en position de fermeture. A l'issue de cette phase, le disjoncteur se retrouve dans la position de la figure 6.If the operator acts on the closing push-button 68 from the position of FIG. 8, the latter pivots about its axis, rotates the drawer 46 clockwise, until the latter interferes with the closing latch 70 and brings it into its unlocked position. The pivoting of the closing latch 70 releases the reduction pawl 91 and the lever 16 which, under the force of the closing spring 14, pivots in a pulsating manner, simultaneously bringing the cam 22 and the shaft 24 in the disarmed position. The finger 90 of the cocking lever 16 causes the deployment of the linkage 78 and the pivoting of the switching rod 58 in the closed position. At the end of this phase, the circuit breaker is in the position of Figure 6.

Si par contre, à partir de la position de la figure 7, un ordre permanent d'ouverture est transmis au verrou d'ouverture 64, celui-ci provoque l'ouverture du disjoncteur 12 mais reste dans une position de déverrouillage représentée sur la figure 9. Dans cette position, le verrou d'ouverture 64 interfère avec le troisième bras 94 du voyant 30, amenant le voyant dans sa position « armé débrayé ».If, on the other hand, from the position of FIG. 7, a permanent opening order is transmitted to the opening lock 64, this opens the circuit breaker 12 but remains in an unlocking position shown in FIG. 9. In this position, the opening latch 64 interferes with the third arm 94 of the indicator 30, bringing the indicator into its "armed disengaged" position.

Diverses modifications sont naturellement envisageables sans sortir du cadre de l'invention. En particulier, il est possible de prévoir une action indirecte du verrou d'ouverture sur le voyant, par l'intermédiaire du tiroir. Pour ce faire, il suffit de prévoir d'une part une portée sur le tiroir, apte à coopérer avec le verrou d'ouverture, de telle manière que le tiroir soit sollicité hors de sa position de coopération avec le bouton-poussoir lorsque celui-ci prend sa position de déverrouillage et, d'autre part, une fente en arc de cercle sur le tiroir, dans laquelle vient glisser un doigt porté par le quatrième doigt du voyant. Lorsque le verrou d'ouverture passe en position de déverrouillage, il entraîne avec lui le doigt du voyant jusqu'à la position armé verrouillé. Lorsque le voyant est en position prêt à fermer, la fente en arc de cercle du tiroir, centré sur le pivot de coulissement du tiroir, autorise un pivotement du tiroir lorsque celui-ci est sollicité par le bouton-poussoir de fermeture.Various modifications are naturally conceivable without departing from the scope of the invention. In particular, it is possible to provide an indirect action of the opening lock on the indicator, through the drawer. To do this, it suffices to provide on the one hand a bearing on the drawer, able to cooperate with the opening lock, so that the drawer is biased out of its position of cooperation with the push button when the It takes its unlocking position and, on the other hand, an arcuate slot on the drawer, into which a finger carried by the fourth finger of the light comes to slide. When the opening lock moves to the unlock position, it carries with it the indicator finger to the locked locked position. When the indicator is in the ready-to-close position, the arcuate slot of the drawer, centered on the sliding pivot of the drawer, allows pivoting of the drawer when the latter is urged by the closing push-button.

Par ailleurs, il est possible de prévoir un ou plusieurs contacts électriques donnant une indication des différents états du voyant. Ces contacts peuvent être très simplement activés par une ou plusieurs cames solidaires du voyant.Furthermore, it is possible to provide one or more electrical contacts giving an indication of the different states of the indicator. These contacts can be very simply activated by one or more cams integral with the indicator.

L'invention a été décrite en liaison avec un disjoncteur. Elle est toutefois également applicable à tout appareillage de coupure à accumulateur d'énergie, par exemple à un appareillage fonctionnant en interrupteur. L'appareillage peut être monopolaire, auquel cas le barreau de commutation et l'organe de contact mobile peuvent être totalement solidaires, voire confondus, ou multipolaire. II peut être limiteur, auquel cas existe une articulation entre la partie de l'organe de contact portant les pastilles de contact et la partie de l'organe de contact liée au barreau de commutation, ou non limiteur, auquel cas cette articulation n'est pas toujours nécessaire.The invention has been described in connection with a circuit breaker. However, it is also applicable to any switchgear energy accumulator, for example to an apparatus operating as a switch. The apparatus may be monopolar, in which case the bar of switching and the movable contact member may be completely integral, or even merged, or multipole. It may be limiter, in which case there is a hinge between the part of the contact member carrying the contact pads and the part of the contact member connected to the switching bar, or non-limiting, in which case this joint is not always necessary.

L'invention s'applique aussi bien à des appareillages basse tension qu'à des appareillages de haute tension.The invention applies both to low voltage switchgear and to high voltage switchgear.

Le voyant peut être pivotant autour d'un axe imaginaire. Il peut également prendre la forme d'un tiroir se déplaçant en translation devant la fenêtre.The indicator can be pivoted around an imaginary axis. It can also take the form of a drawer moving in translation in front of the window.

Claims (9)

  1. Switchgear apparatus (12) comprising:
    - one or more poles each comprising at least one pair of contact means (72, 74), at least one (72) of the contact means of each pair being movable in such a way that the pair of contact means (72, 74) is able to take an open position and a closed position,
    - an opening spring (88),
    - an energy storage means (14),
    - a loading mechanism (10) kinematically linked to the energy storage means (14) so as to load the energy storage means whatever the position of the pair or pairs of contact means (72, 74),
    - a latch called the closing latch (70) able to lock the energy storage means (14) in its loaded state,
    - a kinematic system (62) linking the energy storage means (14), the opening spring (88) and the at least one movable contact means (72) in such a way that discharging of the energy storage means (14) moves the pair or pairs of contact means (72, 74) to their closed position and loads the opening spring, (88) and that the loaded opening spring (88) biases the pair or pairs of contact means (72, 74) to their open position,
    - a latch called the opening latch (64) able to cooperate with the kinematic system (62) and to take a latched position wherein it prevents the pair or pairs of contact means (72, 74) from moving from their closed position to their open position, and an unlatched position wherein it enables this movement,
    - an indicating device comprising
    - an indicator (30) kinematically linked to the loading mechanism (10) and able to take a "not loaded" position and at least a second position, and to take its "not loaded" position if and only if the energy storage means (14) is not in its loaded state,
    - a mechanical indicator of a "ready to close" state of the apparatus (12), kinematically connected to the pair or pairs of contact means (72, 74) and to the opening latch (64), taking a position called "ready to close" if and only if the pair or pairs of contact means (72, 74) are in the open position, the energy storage means (14) is loaded and the opening latch (64) is in its latched position,

    characterized in that the indicator (30) constitutes the mechanical indicator of the "ready to close" state of the apparatus, the "ready to close" position constituting a third position of the indicator, distinct from the "not loaded" position and from the second position of the indicator, the second position of the indicator being taken when the energy storage means (14) is loaded and the apparatus (12) is not in its "ready to close" state.
  2. Switchgear apparatus according to claim 1, characterized in that the indicator (30) is kinematically linked to a transmission means (46) arranged between a closing control means (68) and the energy storage means (14), in such a way that the transmission means (46) is able to transmit the mechanical order from the closing control means (68) to the closing latch (70) if and only if the indicator (30) is in the "ready to close" position.
  3. Switchgear apparatus according to claim 2, characterized in that when the indicator (30) is not in its "ready to close" position, the transmission means (46) does not interfere with the closing control means (68), so that the latter are disengaged.
  4. Switchgear apparatus according to claim 2 or 3, characterized in that the indicator (30) comprises a cooperation surface (45) able to cooperate directly or indirectly with the transmission means (46).
  5. Switchgear apparatus according to any one of the foregoing claims, characterized in that the indicator (30) is mounted pivoting around a spindle (32).
  6. Switchgear apparatus according to any one of the foregoing claims, characterized in that the indicator (30) comprises a cooperation surface (95) able to cooperate directly or indirectly with the opening latch (64).
  7. Switchgear apparatus according to any one of the foregoing claims, characterized in that the indicator (30) comprises a cooperation surface (55) able to cooperate directly or indirectly with the pair or pairs of contact means (72, 74).
  8. Switchgear apparatus according to any one of the foregoing claims, characterized in that the indicator (30) comprises a cooperation surface (29) able to cooperate directly or indirectly with the loading mechanism (10).
  9. Switchgear apparatus according to any one of the foregoing claims, characterized in that the indicator (30) comprises a cooperation surface able to cooperate directly or indirectly with an electrical switch so as to close the latter if and only if the indicator is in its "ready to close" state.
EP99410124A 1998-10-30 1999-10-05 Switching device having a mechanical signaling element with three positions Expired - Lifetime EP0997919B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9813881 1998-10-30
FR9813881A FR2785444B1 (en) 1998-10-30 1998-10-30 SWITCHING APPARATUS COMPRISING A MECHANICAL DISPLAY DEVICE WITH THREE POSITIONS

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EP0997919A1 EP0997919A1 (en) 2000-05-03
EP0997919B1 true EP0997919B1 (en) 2006-02-15

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EP (1) EP0997919B1 (en)
JP (1) JP4454734B2 (en)
KR (1) KR100695635B1 (en)
CN (1) CN1103489C (en)
AU (1) AU754416B2 (en)
BR (1) BR9904986B1 (en)
CA (1) CA2283991C (en)
CZ (1) CZ298125B6 (en)
DE (1) DE69929873T2 (en)
EA (1) EA001841B1 (en)
ES (1) ES2258320T3 (en)
FR (1) FR2785444B1 (en)
HU (1) HUP9903981A3 (en)
ID (1) ID25949A (en)
MY (1) MY125151A (en)
PL (1) PL194955B1 (en)
TR (1) TR199902695A3 (en)
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PL336036A1 (en) 2000-05-08
MY125151A (en) 2006-07-31
JP2000149726A (en) 2000-05-30
CA2283991A1 (en) 2000-04-30
DE69929873T2 (en) 2006-09-07
HUP9903981A2 (en) 2000-08-28
FR2785444B1 (en) 2000-12-15
ES2258320T3 (en) 2006-08-16
CN1103489C (en) 2003-03-19
TW434623B (en) 2001-05-16
FR2785444A1 (en) 2000-05-05
AU754416B2 (en) 2002-11-14
CA2283991C (en) 2008-05-13
AU5714199A (en) 2000-05-04
ID25949A (en) 2000-11-16
BR9904986A (en) 2000-09-05
ZA996752B (en) 2000-05-02
EA199900885A3 (en) 2000-08-28
KR20000029413A (en) 2000-05-25
HU9903981D0 (en) 2000-01-28
EP0997919A1 (en) 2000-05-03
US6144002A (en) 2000-11-07
CZ298125B6 (en) 2007-06-27
TR199902695A2 (en) 2000-07-21
PL194955B1 (en) 2007-07-31
JP4454734B2 (en) 2010-04-21
CZ382299A3 (en) 2000-07-12
HUP9903981A3 (en) 2000-09-28
TR199902695A3 (en) 2000-07-21
KR100695635B1 (en) 2007-03-15
BR9904986B1 (en) 2013-09-10
DE69929873D1 (en) 2006-04-20
EA199900885A2 (en) 2000-06-26
CN1253366A (en) 2000-05-17
EA001841B1 (en) 2001-08-27

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