EP0997919A1 - 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
EP0997919A1
EP0997919A1 EP99410124A EP99410124A EP0997919A1 EP 0997919 A1 EP0997919 A1 EP 0997919A1 EP 99410124 A EP99410124 A EP 99410124A EP 99410124 A EP99410124 A EP 99410124A EP 0997919 A1 EP0997919 A1 EP 0997919A1
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EP
European Patent Office
Prior art keywords
indicator
close
ready
closing
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99410124A
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German (de)
French (fr)
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EP0997919B1 (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
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0997919A1 publication Critical patent/EP0997919A1/en
Application granted granted Critical
Publication of EP0997919B1 publication Critical patent/EP0997919B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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

  • EP A 0 222 645 for example a circuit breaker comprising at least one pair of contacts of which at least one is movable and can take a closed position relative to the other corresponding to mechanical and electrical contact and an open position, this circuit breaker being of the type fitted with an arming mechanism provided with an energy accumulator and a opening mechanism.
  • the arming mechanism includes a so-called closing spring to pass from an armed state to a released state, a so-called closing lock capable of locking the spring closing in its armed state.
  • the closing spring is associated with the movable contact of so that the relaxation of the closing spring causes the movable contact to its position closing.
  • the arming and closing mechanism further includes a mechanism which the driving member, for example an oscillating lever, drives a freewheel mechanism capable of bringing the closing spring into its armed state.
  • the opening mechanism includes a so-called opening spring capable of going 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 opening spring in its armed state.
  • the opening spring is associated with the movable contact of so that the relaxation of the opening spring causes the movable contact to a position and that the movement of the movable contact to its closed position causes the opening spring to be armed
  • Such a circuit breaker can be in different states, in particular a closed state, a state open disarmed, an open armed state.
  • the lock opening can be either in the unlocked position, which is usually a position of rest in which the lock is resiliently recalled, ie in the locking position.
  • the lock can indeed be permanently requested in this last position, for example by a trigger activating it due to a persistent electrical fault on the line, or by a opening push button itself locked by an external lock to allow intervention on the apparatus.
  • the circuit breaker should in practice only be closed when three conditions are met: arming mechanism must be armed, the switch bar must be in position opening, and the opening latch must be in its locked position.
  • the conjunction of these three conditions defines a state known as "ready to close" of the circuit breaker.
  • the catalog low voltage distribution Merlin Gerin from 1989 references a brand circuit breaker Masterpact, presenting an indicator of this state ready to close the device.
  • the internal operation of this prior art device is shown in Figures 1 to 3.
  • the arming mechanism 10 of the circuit breaker 12 includes an energy accumulator spring 14 cooperating with a transmission lever 16.
  • the lever 16 is pivotally mounted around a fixed axis 18 and comprises a roller 20 interfering with an arming cam 22 mounted on a shaft 24.
  • the shaft 24 supports a secondary cam 26 for indexing the state of the circuit breaker 12, interfering with a finger 28 of an indicator 30 pivoting about a fixed axis 32.
  • the sight glass 30 has a wall 34 in the sector of a cylinder, visible through a window 36 of the instrument panel 38 of the front face of the apparatus. LED 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, of the armed state.
  • 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 window 36 a symbol of the armed state of the circuit breaker.
  • the finger 28 interferes with the periphery cylindrical 42 of the cam 26, so that appears in the window a different part of the wall 34 carrying a corresponding symbol.
  • the indicator light 30 also comprises an arm 44 acting on a drawer 46, so that the drawer 46 is pushed to the left on the figures, as long as the circuit breaker is not in its armed state.
  • the circuit breaker has an opening indicator 48 visible in Figure 3 and mounted on an axis 50 extending that of the arming indicator 30, in a plane parallel to that of FIG. 1.
  • the indicator opening 48 is recalled to an angular position not shown, in which it leaves appear through a window 52 of the dashboard 38 a symbol of the open state of the circuit breaker.
  • the indicator 48 also includes a finger 54 which interferes with a cam 56 carried by the switching bar 58 when it reaches its closed position, so as to rotate the sight glass 48, which is found in the position shown in the figure 3, in which it lets appear through the window 52 a symbol of the closed state of circuit breaker.
  • the circuit breaker opening mechanism 12 furthermore comprises an opening lock 64 able to assume a locking position, shown in Figure 2, in which it prohibits the passage of the switching rod 58 from its closed position to its open position, and an unlocked position, shown in Figures 1 and 3, in which it allows this passage.
  • the lock 64 has an arm 66 acting on the drawer 46, and pushing it to the left on Figure 2, as long as the lock is in the unlocked position.
  • Drawer 46 is recalled elastically to the right in the figures, but it cannot reach the position of figure 1 only when the three conditions of the “ready to close” state are met.
  • the indicator drawer 46 activates an electrical contact, not shown, which activates an indicator light dashboard 38. Furthermore, it ensures in this position, and in this position only, a kinematic connection between a closing button 68 and a locking bolt closing 70 intended to release the arming cam 22, so that any closing order by the push button 68 is inoperative, as long as the apparatus is not in its ready-to-use state to close.
  • This device has the drawback of not having a mechanical sight glass, that is to say purely mechanical device visible to the operator and indicating by its position or its state the state "ready to close" of the device.
  • the present invention therefore aims to provide the operator with mechanical information representative of the state ready to close of the apparatus, in an inexpensive form, little cumbersome and practical reading.
  • the indicator is kinematically connected to a transmission member arranged between the closing control member and the energy accumulator, so that the transmission member is capable of transmitting the mechanical order of the control member of closing with the closing latch if and only if the indicator is in the "ready to close” position.
  • the indicator then becomes multifunctional, since it controls the inactivation of the control member closing, hence a reduction in the number of parts.
  • the organ's declutching function closing command is useful to avoid vacuum closing, i.e. on a switchgear whose opening lock is in the unlocked position. Indeed, a vacuum closing causes a significant energy discharge which must be absorbed by limit stops dimensioned for less severe impacts.
  • the transmission member does not interfere with the closing control member when the light is not in its "ready to close” position, so that the control unit is disengaged.
  • the inactivation of the closing control member is done by declutching: in practice, the operator who operates the closing control member does not transmits no mechanical stress to the locking bolt, to the transmission member or to the seer.
  • the sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the transmission device.
  • the sight glass is mounted pivoting about an axis.
  • the sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the opening lock.
  • the sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the pair or pairs of contact members, in particular with a bar of switching connecting the movable contact members.
  • the sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the arming mechanism, in particular with its device training.
  • the kinematic link between the indicator and the latch opening, the switch bar, the arming mechanism or the transmission may not use a cam, but any other suitable type of connection, for example by cables.
  • the sight glass comprises a cooperation surface, constituted for example by an arm or a cam, able to cooperate directly or indirectly with a switch electric 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 board. on the circuit breaker and to internal or external monitoring devices.
  • the circuit breaker comprises a pair of contact members 72, 74 separable by pole, whose movable contact member 72 is connected by a connecting rod 76 to a bar switch 58 common to all the poles, and a device for controlling opening and closing of the poles, equipped with an energy accumulator.
  • the bar of switching 58 is a shaft driving the circuit breaker contact members between a position and their closed position.
  • the mobile contact member is itself in two parts, one constituting a support mounted to pivot about a fixed axis and urged by the connecting rod 76, the other mounted pivoting about an axis of the first, and carrying the pellets of contact.
  • the control device comprises a kinematic chain for opening and closure 62, visible in FIGS.
  • the connecting rod 78 is connected by a end 80 to a crank of the switch bar, while its other end 82 is mounted on the pivoting opening hook 84.
  • the hook 84 is itself retained in position by the opening pawl 86 retained by an opening latch 64.
  • the crankshaft 78 can take a folded position corresponding to an open position of the bar switching 58, and a deployed position corresponding to the closed position of the bar 58.
  • An opening spring 88 working under tension connects the connecting pivot 80 from the crankshaft to the switch bar and a fixed cleat, so that it recalls the switch bar 58 in the open position, and tends automatically when the closing of the poles.
  • the control device also comprises an arming mechanism 10 to accumulation of energy visible in Figure 5, whose arming is operated through a reset cam 22 keyed onto an arming shaft 24.
  • the arming shaft 24 is driven clockwise in the figures, by a ratchet and ratchet wheel, not represented.
  • the cocking cam 22 cooperates with a roller 20 of a cocking lever 16.
  • the cocking lever 16 supports a finger 88 for connection with an elastic energy accumulator comprising a compression spring 14, called closing spring, guided in a support telescopic.
  • the cocking lever 16 also belongs to the kinematic chain opening and closing, since it also has a finger 90 cooperating with the connecting rod 78, so that the pivoting of the cocking lever 16 when the closing spring 14 drives the linkage 78 and the switch bar 58 in position closing.
  • the cocking cam In the cocked position of Figure 5, the cocking cam is retained in position by a closing pawl 91, itself locked in position by a closing latch 70.
  • a dashboard 38 of the circuit breaker 12 has a push button 68 and a mechanical indicator 30 indicating the armed or unarmed state of the apparatus.
  • the sight glass 30 constitutes a lever pivoting about an axis 32 and having a display face 34 in cylinder sector, passing in front of a window 36 of the front face of circuit breaker 12. It is recalled by a tension spring 92 clockwise on the figures.
  • the sight glass 30 has a first arm 28 comprising an active surface 29 cooperating with an indexing cam 26 secured to the arming shaft 24.
  • the indexing cam 26 has a notch 40 in which the arm 28 is free to be housed when the shaft 24 reaches its armed position, in the positions of FIGS. 7 to 9.
  • the indicator light has a second arm 54 of which an active surface 55 interferes with the switching bar 58 in the position of FIG. 7.
  • the sight glass has a third arm 94 which interferes with a active surface 95 with an arm 96 of the opening latch 64 when the latter takes its position for unlocking in FIG. 9.
  • the indicator also has a fourth arm 44, one of which active surface 45 cooperates with a transmission drawer 46.
  • the drawer has an oblong 98 of guide cooperating with a fixed pivot 100, giving it a degree of freedom of translation and a degree of freedom of rotation.
  • the drawer is recalled elastically to the right in Figures 6 to 9, in a position where it is able to cooperate with the push button 68, so as to transmit to the closing lock 70 a closing order given manually on the pushbutton.
  • the operation of the device is as follows.
  • the switching rod 58 In the position of FIG. 6, the switching rod 58 is in the closed position and arming of the energy storage device has not started.
  • the first arm 28 of the seer rests on the periphery 42 of the indexing cam 26 so that the indicator 30 takes a first position in which it lets appear through the window part of the sector cylindrical 34 carrying a symbol characteristic of the "unarmed" state of the circuit breaker.
  • the drawer 46 In this position, the drawer 46 is biased by the third arm 44 of the indicator 30 outside of its position of interference with the push button 68 and the closing latch 70, so that the closing push button 68 is inoperative.
  • the first arm 28 of the indicator light is opposite the notch 40 of the indexing cam. Its pivoting is however restricted by interference from the second arm 54 with the arm of the switching rod 58 in the closed position.
  • the indicator light 30 therefore pivots, under the bias of its return spring 92, to the position of Figure 7. In this position, the drawer 46 is still biased by the third arm 44 of the indicator light 30 outside its position of interference with the push button 68 and the latch closing 70, so that the closing push button 68 is still inoperative.
  • the light 30 lets appear through the window part of the cylinder sector 34 bearing a symbol of the “armed disengaged” state of the circuit breaker, that is to say of a state in which the closing the circuit breaker is not authorized, although the arming spring 14 is banded.
  • the invention has been described in connection with a circuit breaker. It is however also applicable to any switchgear with energy storage, for example to switchgear operating as a switch.
  • the apparatus can be monopolar, in which case the bar of switching and the movable contact member can be completely integral, even confused, or multipolar. It can be limiting, in which case there is an articulation between the part of the contact member carrying the contact pads and the part of the contact member linked to the switching bar, or non-limiting, in which case this articulation is not always necessary.
  • the invention applies both to low voltage switchgear and to switchgear high tension.
  • 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.

Abstract

Circuit breaker includes visible status indicator. The electrical cut-out switch (12) comprises contacts which are biased towards their open position by a spring, and an arming mechanism with an energy store and mechanical contact opening and closing drive chain, linked to the energy store. The mechanism is operated by an opening bolt (64) and a closing bolt (70). The instruction to close the contacts may only be validly transmitted to the closing bolt (70) when the mechanism is in the ready to close state. The switch includes a three-position indicator. The positions include a non-armed position, a ready to close position, and a third position which is armed and not ready to close. The indicator is mechanically linked to the arming mechanism, to the opening bolt, and to the contact components.

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 entraíne le contact mobile vers sa position de fermeture. Le mécanisme d'armement et de fermeture comporte en outre un mécanisme d'entraínement dont l'organe menant, par exemple une manette oscillante, entraíne 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 entraíne le contact mobile vers une position d'ouverture et à ce que le déplacement du contact mobile vers sa position de fermeture entraíne l'armement du ressort d'ouvertureThe invention relates to electrical apparatus of the kind described in the document. EP A 0 222 645, for example a circuit breaker comprising at least one pair of contacts of which at least one is movable and can take a closed position relative to the other corresponding to mechanical and electrical contact and an open position, this circuit breaker being of the type fitted with an arming mechanism provided with an energy accumulator and a opening mechanism. The arming mechanism includes a so-called closing spring to pass from an armed state to a released state, a so-called closing lock capable of locking the spring closing in its armed state. The closing spring is associated with the movable contact of so that the relaxation of the closing spring causes the movable contact to its position closing. The arming and closing mechanism further includes a mechanism which the driving member, for example an oscillating lever, drives a freewheel mechanism capable of bringing the closing spring into its armed state. The opening mechanism includes a so-called opening spring capable of going 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 opening spring in its armed state. The opening spring is associated with the movable contact of so that the relaxation of the opening spring causes the movable contact to a position and that the movement of the movable contact to its closed position causes the opening spring to be armed

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, a state open disarmed, an open armed state. In open armed and disarmed states, the lock opening can be either in the unlocked position, which is usually a position of rest in which the lock is resiliently recalled, ie in the locking position. The lock can indeed be permanently requested in this last position, for example by a trigger activating it due to a persistent electrical fault on the line, or by a opening push button itself locked by an external lock to allow intervention on the apparatus.

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'apparaít 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'apparaít 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 apparaítre 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 apparaítre 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.However, the circuit breaker should in practice only be closed when three conditions are met: arming mechanism must be armed, the switch bar must be in position opening, and the opening latch must be in its locked position. The conjunction of these three conditions defines a state known as "ready to close" of the circuit breaker. The catalog low voltage distribution Merlin Gerin from 1989 references a brand circuit breaker Masterpact, presenting an indicator of this state ready to close the device. The internal operation of this prior art device is shown in Figures 1 to 3. The arming mechanism 10 of the circuit breaker 12 includes an energy accumulator spring 14 cooperating with a transmission lever 16. The lever 16 is pivotally mounted around a fixed axis 18 and comprises a roller 20 interfering with an arming cam 22 mounted on a shaft 24. The shaft 24 supports a secondary cam 26 for indexing the state of the circuit breaker 12, interfering with a finger 28 of an indicator 30 pivoting about a fixed axis 32. The sight glass 30 has a wall 34 in the sector of a cylinder, visible through a window 36 of the instrument panel 38 of the front face of the apparatus. LED 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, of the armed state. In position armed with the arming mechanism, that is to say when the spring 14 is fully wound, on Figure 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 window 36 a symbol of the armed state of the circuit breaker. When the mechanism is not armed, the finger 28 interferes with the periphery cylindrical 42 of the cam 26, so that appears in the window a different part of the wall 34 carrying a corresponding symbol. The indicator light 30 also comprises an arm 44 acting on a drawer 46, so that the drawer 46 is pushed to the left on the figures, as long as the circuit breaker is not in its armed state. Furthermore, the circuit breaker has an opening indicator 48 visible in Figure 3 and mounted on an axis 50 extending that of the arming indicator 30, in a plane parallel to that of FIG. 1. The indicator opening 48 is recalled to an angular position not shown, in which it leaves appear through a window 52 of the dashboard 38 a symbol of the open state of the circuit breaker. The indicator 48 also includes a finger 54 which interferes with a cam 56 carried by the switching bar 58 when it reaches its closed position, so as to rotate the sight glass 48, which is found in the position shown in the figure 3, in which it lets appear through the window 52 a symbol of the closed state of circuit breaker. In this position, an arm 60 secured to the sight glass interferes with the drawer 46 so that drawer 46 is pushed to the left in the figures as long as the circuit breaker is not in its open state. The circuit breaker opening mechanism 12 furthermore comprises an opening lock 64 able to assume a locking position, shown in Figure 2, in which it prohibits the passage of the switching rod 58 from its closed position to its open position, and an unlocked position, shown in Figures 1 and 3, in which it allows this passage. The lock 64 has an arm 66 acting on the drawer 46, and pushing it to the left on Figure 2, as long as the lock is in the unlocked position. Drawer 46 is recalled elastically to the right in the figures, but it cannot reach the position of figure 1 only when the three conditions of the “ready to close” state are met. In this position, the indicator drawer 46 activates an electrical contact, not shown, which activates an indicator light dashboard 38. Furthermore, it ensures in this position, and in this position only, a kinematic connection between a closing button 68 and a locking bolt closing 70 intended to release the arming cam 22, so that any closing order by the push button 68 is inoperative, as long as the apparatus is not in its ready-to-use state to close. This device has the drawback of not having a mechanical sight glass, that is to say purely mechanical device visible to the operator and indicating by its position or its state the state "ready to close" of the device.

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 document EP-A-0 721 647 to provide a specific mechanical indicator for the ready-to-close state of the device, taking information on a moving part whose position is specific to the ready to close state. This solution is relatively heavy to implement, due to the many specific parts it puts in play and its size. In addition, it provides the human operator with information superabundant which 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 state ready to close of the apparatus, in an inexpensive form, little cumbersome and practical 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 chaíne 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 chaíne 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 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 so that the pair of contact members is capable of assuming an open position and a closed position,
  • an opening spring,
  • an energy accumulator,
  • an arming mechanism kinematically linked to the energy accumulator so as to charge the energy accumulator regardless of the position of the pair or pairs of contact members,
  • a so-called closing lock capable of locking 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 or pairs of contact members towards their position closing and banding the opening spring, and the banded opening spring returns the pair or pairs of contact members to their open position,
  • a so-called opening lock capable of cooperating with the kinematic chain and taking a locking position in which it prohibits the passage of the pair or pairs of contact members from their closed position to their open position and a position unlocked in which it allows this passage,
  • a signaling device comprising:
    • an indicator kinematically linked to the arming mechanism and able 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 its charged state,
    • a mechanical indicator of a “ready to close” state of the apparatus, kinematically connected to the pair or pairs of contact members and to the opening latch, taking a position called “ready to close” 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 locked position,
switchgear in which the indicator constitutes the mechanical indicator of the "ready to close" state of the switchgear, the "ready to close" position, 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 charged and the switchgear 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, there or two were necessary. This arrangement is more advantageous from an ergonomic point of view, since the operator receives only relevant information and not unnecessarily redundant, indicating the status "unarmed", "armed not ready to close" and "ready to close". Indeed, the “not ready to close” position of the prior art indicator light does not add any information when the arming indicator 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 arranged between the closing control member and the energy accumulator, so that the transmission member is capable of transmitting the mechanical order of the control member of closing with the closing latch if and only if the indicator is in the "ready to close" position. The indicator then becomes multifunctional, since it controls the inactivation of the control member closing, hence a reduction in the number of parts. The organ's declutching function closing command is useful to avoid vacuum closing, i.e. on a switchgear whose opening lock is in the unlocked position. Indeed, a vacuum closing causes a significant energy discharge which must be absorbed by limit stops dimensioned for less severe impacts. Preferably, the transmission member does not interfere with the closing control member when the light is not in its "ready to close" position, so that the control unit is disengaged. In this case, the inactivation of the closing control member is done by declutching: in practice, the operator who operates the closing control member does not transmits no mechanical stress to the locking bolt, to the transmission member or to the seer. Preferably, the sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the transmission device.

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 sight glass is mounted pivoting about an axis. Alternatively, it is possible to implement the invention with an indicator mobile 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 sight glass 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 sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the pair or pairs of contact members, in particular with a bar of switching 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'entraínement. 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 sight glass comprises a cooperation surface capable of cooperating directly or indirectly with the arming mechanism, in particular with its device training. Alternatively, the kinematic link between the indicator and the latch opening, the switch bar, the arming mechanism or the transmission may not use a cam, but any other suitable type of 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 a part mobile intermediate separate from the sight glass, kinematically linked to it, and cooperating by via cams or any other suitable means with the opening lock, the switch bar, the arming mechanism and, if applicable, the transmission.

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 sight glass comprises a cooperation surface, constituted for example by an arm or a cam, able to cooperate directly or indirectly with a switch electric 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 board. on 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 characteristics of the invention will emerge from the description which follows of an embodiment of the invention, given by way of nonlimiting example and represented in the appended drawings in which:
  • Figure 1, already commented, shows a view of the mechanism of the prior art, in the ready to close state;
  • FIG. 2, already commented on, represents a view of the mechanism of the state of the art, in the unarmed open state;
  • FIG. 3, already commented on, represents a view of the mechanism of the state of the art, in the closed unarmed 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 closed unarmed state;
  • Figure 7 shows the device of Figure 6, in the closed armed state;
  • Figure 8 shows the device of Figure 6, in the ready to close state;
  • Figure 9 shows the device of Figure 6, in the locked open and armed state.

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 entraínant 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 chaíne 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, whose movable contact member 72 is connected by a connecting rod 76 to a bar switch 58 common to all the poles, and a device for controlling opening and closing of the poles, equipped with an energy accumulator. The bar of switching 58 is a shaft driving the circuit breaker contact members between a position and their closed position. The mobile contact member is itself in two parts, one constituting a support mounted to pivot about a fixed axis and urged by the connecting rod 76, the other mounted pivoting about an axis of the first, and carrying the pellets of contact. The control device comprises a kinematic chain for opening and closure 62, visible in FIGS. 4 and 5, comprising a transmission lever 16, a connecting rod 78, a hook 84 and an opening pawl 86. The connecting rod 78 is connected by a end 80 to a crank of the switch bar, while its other end 82 is mounted on the pivoting opening hook 84. The hook 84 is itself retained in position by the opening pawl 86 retained by an opening latch 64. The crankshaft 78 can take a folded position corresponding to an open position of the bar switching 58, and a deployed position corresponding to the closed position of the bar 58. An opening spring 88 working under tension connects the connecting pivot 80 from the crankshaft to the switch bar and a fixed cleat, so that it recalls the switch bar 58 in the open position, and tends automatically when the closing of 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 entraíné 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 chaíne 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 entraíne 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 arming mechanism 10 to accumulation of energy visible in Figure 5, whose arming is operated through a reset cam 22 keyed onto an arming shaft 24. The arming shaft 24 is driven clockwise in the figures, by a ratchet and ratchet wheel, not represented. The cocking cam 22 cooperates with a roller 20 of a cocking lever 16. The cocking lever 16 supports a finger 88 for connection with an elastic energy accumulator comprising a compression spring 14, called closing spring, guided in a support telescopic. The cocking lever 16 also belongs to the kinematic chain opening and closing, since it also has a finger 90 cooperating with the connecting rod 78, so that the pivoting of the cocking lever 16 when the closing spring 14 drives the linkage 78 and the switch bar 58 in position closing. In the cocked position of Figure 5, the cocking cam is retained in position by a closing 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.With reference to FIGS. 6 to 9, a dashboard 38 of the circuit breaker 12 has a push button 68 and a mechanical indicator 30 indicating the armed or unarmed state of the apparatus. The sight glass 30 constitutes a lever pivoting about an axis 32 and having a display face 34 in cylinder sector, passing in front of a window 36 of the front face of circuit breaker 12. It is recalled by a tension spring 92 clockwise on the figures. The sight glass 30 has a first arm 28 comprising an active surface 29 cooperating with an indexing cam 26 secured to the arming shaft 24. The indexing cam 26 has a notch 40 in which the arm 28 is free to be housed when the shaft 24 reaches its armed position, in the positions of FIGS. 7 to 9. The indicator light has a second arm 54 of which an active surface 55 interferes with the switching bar 58 in the position of FIG. 7. The sight glass has a third arm 94 which interferes with a active surface 95 with an arm 96 of the opening latch 64 when the latter takes its position for unlocking in FIG. 9. The indicator also has a fourth arm 44, one of which active surface 45 cooperates with a transmission drawer 46. The drawer has an oblong 98 of guide cooperating with a fixed pivot 100, giving it a degree of freedom of translation and a degree of freedom of rotation. The drawer is recalled elastically to the right in Figures 6 to 9, in a position where it is able to cooperate with the push button 68, so as to transmit to the closing lock 70 a closing order given manually on the pushbutton.

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 apparaítre 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 FIG. 6, the switching rod 58 is in the closed position and arming of the energy storage device has not started. The first arm 28 of the seer rests on the periphery 42 of the indexing cam 26 so that the indicator 30 takes a first position in which it lets appear through the window part of the sector cylindrical 34 carrying a symbol characteristic of the "unarmed" state of the circuit breaker. In this position, the drawer 46 is biased by the third arm 44 of the indicator 30 outside of its position of interference with the push button 68 and the closing 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 arming shaft 24 clockwise in FIG. 6 causes that of the cocking cam, which pivots the cocking lever 16 about its fixed axis 18, causing compression of the closing spring 14. At the end of the arming stroke, the cam arming 22 interferes with the pawl 91 itself locked by the closing latch half-moon 70, prohibiting the continuation of the rotation. This position corresponds to an area interference between the cam 22 and the roller 20 of the lever 16, in which the roller 20 becomes motor and the receiving cam 22.

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 apparaítre 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 light is opposite the notch 40 of the indexing cam. Its pivoting is however restricted by interference from the second arm 54 with the arm of the switching rod 58 in the closed position. The indicator light 30 therefore pivots, under the bias of its return spring 92, to the position of Figure 7. In this position, the drawer 46 is still biased by the third arm 44 of the indicator light 30 outside its position of interference with the push button 68 and the latch closing 70, so that the closing push button 68 is still inoperative. The light 30 lets appear through the window part of the cylinder sector 34 bearing a symbol of the “armed disengaged” state of the circuit breaker, that is to say of a state in which the closing the circuit breaker is not authorized, although the arming 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 FIG. 7, the pivoting of the opening latch 64 releases the ratchet 86, which in turn releases the hook 84, which pivots so that the crankshaft 78 passes a neutral point beyond which it folds impulsively, causing the rotation of the switch bar 58 to its open position shown in Figure 8, then that the opening latch 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 apparaítre 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 light 30 is stressed. The indicator 30 is therefore recalled clockwise by the spring 92, until it appears through the window a symbol of the “ready to close” state of the circuit breaker. This pivoting of the indicator also releases the drawer 46 which is recalled to the right to take the position of the 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, this pivots around its axis, rotates the drawer 46 clockwise, until the latter interferes with the closing latch 70 and brings it into its unlocking position. The pivoting of the closing latch 70 releases the multiplier pawl 91 and the lever 16 which, under the force of the closing spring 14, pivots impulsively, bringing back simultaneously the cam 22 and the shaft 24 in the disarmed position. Finger 90 of the lever armament 16 causes the deployment of crankshaft 78 and the pivoting of the bar of switching 58 in the closed position. At the end of this phase, the circuit breaker is found 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 order of opening is transmitted to the opening lock 64, this causes the opening of the circuit breaker 12 but remains in an unlocked position shown in Figure 9. In this position, the latch 64 interferes with the third arm 94 of the indicator light 30, bringing the indicator light 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 entraíne 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 possible 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 is sufficient to provide on the one hand a scope on the drawer, able to cooperate with the opening lock, so that the drawer is stressed out of its cooperation position with the push-button when it takes its position release and, on the other hand, a slot in an arc on the drawer, in which comes slide a finger carried by the fourth finger of the indicator. When the opening lock passes in the unlocked position, it carries with it the finger of the indicator light to the armed position Locked. When the indicator light is in the ready to close position, the arcuate slot of the drawer, centered on the sliding pivot of the drawer, allows the drawer to pivot when it is requested 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 a indication of the different LED states. These contacts can very easily be activated by one or more cams integral with the sight glass.

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. Il 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. It is however also applicable to any switchgear with energy storage, for example to switchgear operating as a switch. The apparatus can be monopolar, in which case the bar of switching and the movable contact member can be completely integral, even confused, or multipolar. It can be limiting, in which case there is an articulation between the part of the contact member carrying the contact pads and the part of the contact member linked to the switching bar, or non-limiting, in which case this articulation 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 switchgear high tension.

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)

Appareillage de coupure (12) comportant : un ou plusieurs pôles comportant chacun au moins une paire d'organes de contact (72, 74), l'un (72) au moins des organes de contact de chaque paire étant mobile de telle manière que la paire d'organes de contact (72, 74) soit apte à prendre une position d'ouverture et une position de fermeture, un ressort d'ouverture (88), un accumulateur d'énergie (14), un mécanisme d'armement (10) lié cinématiquement à l'accumulateur d'énergie (14) de manière à charger l'accumulateur d'énergie quelle que soit la position de la ou des paires d'organes de contact (72, 74), un verrou dit de fermeture (70) apte à verrouiller l'accumulateur d'énergie (14) dans son état chargé, une chaíne cinématique (62) reliant l'accumulateur d'énergie (14), le ressort d'ouverture (88) et le ou les organes de contact mobiles (72) de telle sorte que la décharge de l'accumulateur d'énergie (14) déplace la ou les paires d'organes de contact (72, 74) vers leur position de fermeture et bande le ressort d'ouverture (88), et que le ressort d'ouverture (88) bandé rappelle la ou les paires d'organes de contact (72, 74) vers leur position d'ouverture, un verrou dit d'ouverture (64) apte à coopérer avec la chaíne cinématique (62) et à prendre une position de verrouillage dans laquelle il interdit le passage de la ou des paires d'organes de contact (72, 74) 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 (30) lié cinématiquement au mécanisme d'armement (10) 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 (14) n'est pas dans son état chargé, un indicateur mécanique d'un état « prêt à fermer » de l'appareillage (12), relié cinématiquement à la ou aux paires d'organes de contact (72, 74) et au verrou d'ouverture (64), prenant une position dite « prêt à fermer » si et seulement si la ou les paires d'organes de contact (72, 74) sont en position d'ouverture, l'accumulateur d'énergie (14) est chargé et le verrou d'ouverture (64) est dans sa position de verrouillage, caractérisé en ce que le voyant (30) 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 (14) est chargé et que l'appareillage (12) n'est pas dans son état « prêt à fermer ».Switchgear (12) comprising: one or more poles each comprising at least one pair of contact members (72, 74), at least one (72) of the contact members of each pair being movable so that the pair of contact members ( 72, 74) is able to assume an open position and a closed position, an opening spring (88), an energy accumulator (14), an arming mechanism (10) kinematically linked to the energy accumulator (14) so as to charge the energy accumulator regardless of the position of the pair or pairs of contact members (72, 74) , a so-called closing lock (70) capable of locking the energy accumulator (14) in its charged state, a kinematic chain (62) connecting the energy accumulator (14), the opening spring (88) and the movable contact member (s) (72) so that the discharge of the energy accumulator ( 14) moves the pair or pairs of contact members (72, 74) to their closed position and strips the opening spring (88), and the banded opening spring (88) recalls the pair or pairs of '' contact members (72, 74) towards their open position, a so-called opening lock (64) able to cooperate with the kinematic chain (62) and to take a locking position in which it prohibits the passage of the pair or pairs of contact members (72, 74) from their position closing in their open position and an unlocked position in which it allows this passage, a signaling device comprising an indicator (30) kinematically linked to the arming mechanism (10) and capable of taking an "unarmed" position and at least a second position, and taking its "unarmed" position if and only if the accumulator of energy (14) is not in its charged state, a mechanical indicator of a “ready to close” state of the apparatus (12), kinematically connected to the pair or pairs of contact members (72, 74) and to the opening latch (64), taking a position said "ready to close" if and only if the pair or pairs of contact members (72, 74) are in the open position, the energy accumulator (14) is charged and the opening latch (64 ) is in its locked 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 "unarmed" position And the second position of the indicator, the second position of the indicator being taken when the energy accumulator (14) is charged and the apparatus (12) is not in its "ready to close" state. Appareillage selon la revendication 1, caractérisé en ce que le voyant (30) est relié cinématiquement à un organe de transmission (46) disposé entre un organe de commande de fermeture (68) et l'accumulateur d'énergie (14), de telle sorte que l'organe de transmission (46) est apte à transmettre l'ordre mécanique de l'organe de commande de fermeture (68) au verrou de fermeture (70) si et seulement si le voyant (30) est en position « prêt à fermer ».Apparatus according to claim 1, characterized in that the sight glass (30) is connected kinematically to a transmission member (46) disposed between a control member closure (68) and the energy accumulator (14), so that the transmission (46) is capable of transmitting the mechanical order of the control member of closing (68) to the closing latch (70) if and only if the indicator (30) is in "ready to close" position. Appareillage selon la revendication 2, caractérisé en ce que lorsque le voyant (30) n'est pas dans sa position « prêt à fermer », l'organe de transmission (46) n'interfère pas avec l'organe de commande de fermeture (68), de sorte que celui-ci est débrayé.Apparatus according to claim 2, characterized in that when the sight glass (30) is not not in its "ready to close" position, the transmission member (46) does not interfere with the closing control member (68), so that the latter is disengaged. Appareillage selon les revendications 2 ou 3, caractérisé en ce que le voyant (30) comporte une surface de coopération (45) apte à coopérer directement ou indirectement avec l'organe de transmission (46).Apparatus according to claims 2 or 3, characterized in that the sight glass (30) has a cooperation surface (45) capable of cooperating directly or indirectly with the transmission member (46). Appareillage selon l'une quelconque des revendications précédentes, caractérisé en ce que le voyant (30) est monté pivotant autour d'un axe (32).Apparatus according to any one of the preceding claims, characterized in that that the sight glass (30) is pivotally mounted about an axis (32). Appareillage selon l'une quelconque des revendications précédentes, caractérisé en ce que le voyant (30) comporte une surface de coopération (95) apte à coopérer directement ou indirectement avec le verrou d'ouverture (64).Apparatus according to any one of the preceding claims, characterized in that that the sight glass (30) has a cooperation surface (95) capable of directly cooperating or indirectly with the opening lock (64). Appareillage selon l'une quelconque des revendications précédentes, caractérisé en ce que le voyant (30) comporte une surface de coopération (55) apte à coopérer directement ou indirectement avec la ou les paires d'organes de contact (72, 74).Apparatus according to any one of the preceding claims, characterized in that that the sight glass (30) has a cooperation surface (55) capable of directly cooperating or indirectly with the pair or pairs of contact members (72, 74). Appareillage selon l'une quelconque des revendications précédentes, caractérisé en ce que le voyant (30) comporte une surface de coopération (29) apte à coopérer directement ou indirectement avec le mécanisme d'armement (10).Apparatus according to any one of the preceding claims, characterized in that that the sight glass (30) has a cooperation surface (29) capable of directly cooperating or indirectly with the arming mechanism (10). Appareillage selon l'une quelconque des revendications précédentes, caractérisé en ce que le voyant (30) comporte une surface de coopération 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 ».Apparatus according to any one of the preceding claims, characterized in that that the sight glass (30) has a cooperation surface capable of cooperating directly or indirectly with an electric switch so as to close it 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)

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FR9813881A FR2785444B1 (en) 1998-10-30 1998-10-30 SWITCHING APPARATUS COMPRISING A MECHANICAL DISPLAY DEVICE WITH THREE POSITIONS
FR9813881 1998-10-30

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WO2013102726A1 (en) 2012-01-06 2013-07-11 Schneider Electric Industries Sas Electrical power circuit breaker having a power battery and a device for the improved indication of the operational state
FR2985600A1 (en) * 2012-01-06 2013-07-12 Schneider Electric Ind Sas ENERGY ACCUMULATOR POWER ELECTRIC CIRCUIT BREAKER AND SIGNALING DEVICE THAT IMPROVES OPERATING STATUS
CN104040660A (en) * 2012-01-06 2014-09-10 施耐德电器工业公司 Electrical power circuit breaker having power battery and device for the improved indication of the operational state
US9373457B2 (en) 2012-01-06 2016-06-21 Schneider Electric Industries Sas Circuit breaker indicating cam having a profile which reduces transmission of mechanical shocks to the auxiliary release
CN104040660B (en) * 2012-01-06 2016-09-28 施耐德电器工业公司 There is the power circuit breaker of the instruction device of the mode of operation of battery and improvement

Also Published As

Publication number Publication date
HU9903981D0 (en) 2000-01-28
KR100695635B1 (en) 2007-03-15
CN1103489C (en) 2003-03-19
HUP9903981A3 (en) 2000-09-28
US6144002A (en) 2000-11-07
CZ298125B6 (en) 2007-06-27
DE69929873T2 (en) 2006-09-07
PL336036A1 (en) 2000-05-08
TW434623B (en) 2001-05-16
ID25949A (en) 2000-11-16
EA199900885A3 (en) 2000-08-28
JP2000149726A (en) 2000-05-30
HUP9903981A2 (en) 2000-08-28
FR2785444B1 (en) 2000-12-15
CA2283991A1 (en) 2000-04-30
DE69929873D1 (en) 2006-04-20
TR199902695A2 (en) 2000-07-21
TR199902695A3 (en) 2000-07-21
EP0997919B1 (en) 2006-02-15
BR9904986A (en) 2000-09-05
MY125151A (en) 2006-07-31
CN1253366A (en) 2000-05-17
EA001841B1 (en) 2001-08-27
BR9904986B1 (en) 2013-09-10
EA199900885A2 (en) 2000-06-26
CA2283991C (en) 2008-05-13
CZ382299A3 (en) 2000-07-12
AU5714199A (en) 2000-05-04
FR2785444A1 (en) 2000-05-05
KR20000029413A (en) 2000-05-25
ZA996752B (en) 2000-05-02
PL194955B1 (en) 2007-07-31
JP4454734B2 (en) 2010-04-21
ES2258320T3 (en) 2006-08-16
AU754416B2 (en) 2002-11-14

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