EP3542388B1 - Circuit breaker provided with a telescopic pump-action reset lever - Google Patents

Circuit breaker provided with a telescopic pump-action reset lever Download PDF

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Publication number
EP3542388B1
EP3542388B1 EP17811997.0A EP17811997A EP3542388B1 EP 3542388 B1 EP3542388 B1 EP 3542388B1 EP 17811997 A EP17811997 A EP 17811997A EP 3542388 B1 EP3542388 B1 EP 3542388B1
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EP
European Patent Office
Prior art keywords
circuit breaker
sliding sleeve
reset lever
telescopic rod
pump
Prior art date
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Application number
EP17811997.0A
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German (de)
French (fr)
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EP3542388A1 (en
Inventor
Stéphane Eloy
Olivier KETTERER
Damien Kieffer
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Hager Electro SAS
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Hager Electro SAS
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Publication of EP3542388A1 publication Critical patent/EP3542388A1/en
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Publication of EP3542388B1 publication Critical patent/EP3542388B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/521—Details concerning the lever handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers

Definitions

  • the present invention relates to the field of electrical installations, in particular to the protection of the various circuits against overloads such as short circuits, by means of circuit breakers and relates to such a circuit breaker provided with an improved pump reset lever. It is aimed more particularly at so-called “ACB” (Air Circuit Breaker) circuit breakers used for high amperage circuits, that is to say mainly amperages greater than 1000 A.
  • ACB Air Circuit Breaker
  • Said ACB circuit breakers are fitted with locks which ensure electrical contact by means of an electro-magneto-mechanical device and which is broken or opened, generally following a malfunction, or due to excessive consumption of current resulting in tripping of said device, or due to a line short-circuit which causes actuation of the magnetic trip device. Such tripping is also necessary to allow maintenance or other interventions downstream of the safety equipment, in order to avoid the risks of electrocution to the operator inherent in working on a live circuit.
  • Electrical contact is generally made between two conductive parts movable with respect to each other (one of which is fixed) held together by means of contact springs which are compressed. When triggered, the spring suddenly relaxes, almost instantly interrupting the flow of current.
  • the force required to close the circuit is high enough to require the use of a loading lever, hereinafter referred to as a pump reset lever.
  • An additional electric motor can also be used, in particular for devices with a remote reset function.
  • this force can reach 90 to 100 N and varies according to the number of pumping cycles, the performance and specifications of the ACB circuit breaker, in particular.
  • the existing levers are generally made in one long piece, for example molded plastic, the end of which serves as a handle. Given the relatively small dimensions of the boxes forming the ACB circuit breaker in question, the existing levers are therefore relatively short and therefore not very ergonomic and / or protrude from said box, with then a higher risk of accidental deterioration of said lever or even injury to the user who risks hitting a too prominent lever.
  • the document FR 1 336 010 The object is an operating handle, in particular for an electric switch, comprising a socket projecting from the housing and in which a movable part can be telescopically eclipsed and which carries a ball for gripping.
  • a socket which protrudes from said housing has the drawbacks described above.
  • the document EP1962311 relates to an electrical switching apparatus comprising a housing comprising a cover having a recess extending from the outside towards the interior of the housing and a charging assembly comprising a charging handle movable between a first position in wherein the handle is generally disposed in the recess and a second position in which the handle extends outwardly from the recess.
  • a charging assembly comprising a charging handle movable between a first position in wherein the handle is generally disposed in the recess and a second position in which the handle extends outwardly from the recess.
  • the object of the present invention is to alleviate these drawbacks by proposing a circuit breaker with a loading or pumping reset lever having improved ergonomics or at least an alternative to existing solutions.
  • ACB Air Circuit Breaker
  • this circuit breaker having a general shape housing enclosing said electromechanical elements and whose front face has a housing in the form of an elongated groove receiving said pumping reset lever, characterized in that the pumping reset lever has a telescopic rod that can be deployed from a retracted position in which it is received by the housing to a deployed position emerging from said housing when actuated for pumping, in that the telescopic rod is produced in the form of a central rod covered with a sleeve sliding on said central rod and provided at its free end with a stopper for said sliding sleeve and in that the stopper is produced in the form of a cylindrical axis also serving as an axis of rotation to rotate said sliding sleeve in a plane perpendicular to the pivot plane of the pump reset lever.
  • ACB Air Circuit Breaker
  • FIGS la to 1c of the accompanying drawings show an ACB circuit breaker which consists of conventional electromechanical tripping and resetting elements by means of a lock and which is provided with a pump reset lever 1.
  • Such an electric circuit breaker of The safety device has the general shape of a case enclosing said electromechanical elements and the front face of which is crossed by said pumping reset lever 1.
  • said ACB (Air Circuit Breaker) type circuit breaker is essentially constituted by electromechanical elements for tripping and resetting a lock and provided with a pump reset lever 1, this circuit breaker having a general shape. housing enclosing said electromechanical elements and whose front face has a housing 2 in the form of an elongated groove receiving said pumping reset lever 1. It is characterized in that the pumping reset lever 1 has a telescopic rod 3 which can be deployed from a retracted position in which it is received by the housing 2 to a deployed position exiting from said housing 2 when it is actuated for pumping.
  • Figure la thus shows the circuit breaker with its pump reset lever 1 which is in the high position in the state where it is not in use and can be stowed away and stored in said housing 2.
  • a special gripping and extraction means 4 can be provided as described below.
  • the figure 1b shows the circuit breaker with its pump reset lever 1 which is in the extended position of housing 2 and slightly lowered but still high, in the state where it is not yet used for pumping.
  • the length of the reset lever by pumping 1 can thus be almost doubled (example: 10 cm in the retracted position - see fig. 1 for 18 cm in the fully extended position - cf. fig. 1b ).
  • the tilting or vertical downward pivoting movement can also be achieved by first pivoting the deployed portion of the telescopic rod 3 to the left (or to the right - not shown here) so as to form a lever forming a right angle with the main rod which connected to the circuit breaker housing and pumping mechanism.
  • This presents an alternative to the movement of the figure 1b which has the advantage of having a smaller clearance, the effective length of the pump reset lever 1 being shorter due to the portion bent to the side, parallel to the front face of the housing of said circuit breaker.
  • the circuit breaker according to the invention is further characterized in that the telescopic rod 3 is provided at its free end with means 4 for gripping and extracting said telescopic rod 3 from said housing 2, for example in the form of a loop or a plastic tab protruding from said housing 2.
  • this means 4 can be produced in the form of a screwed end piece or plugged into the hollow end of the sliding sleeve 6 of the telescopic rod 3.
  • this loop or tab does not protrude or very little from the circuit breaker housing so as to avoid snagging (cf. fig. 2a ). Thanks to the free space located below the telescopic rod 3 in the housing 2, it nevertheless remains easily accessible.
  • the circuit breaker according to the invention is also characterized in that the telescopic rod 3 is produced in the form of a central rod 5 coated with a sliding sleeve 6 on said central rod 5 and provided at its free end with 'a stopper 7 for said sliding sleeve 6. This is particularly visible on the figures 3a to 3c or 4a to 4c , for example.
  • the circuit breaker according to the invention is further characterized in that the stopper 7 is produced in the form of a cylindrical axis 8 also serving as an axis of rotation for causing said sliding sleeve 6 to pivot in a plane perpendicular to the plane. of pivoting of the pumping reset lever 1.
  • the stopper 7 can therefore be made in the wall of said sliding sleeve 6 by recesses in which said cylindrical pin 8 is fitted or simply by its end wall close to the central rod 5.
  • the sliding sleeve 6 is produced in the form of a hollow cylinder having, at its end secured to the central rod 5 by means of the cylindrical axis 8, a notch 9 intended to receive said central rod 5 and to block it in pivoting so that the pivot angle of said sliding sleeve 6 is limited to 90 ° on each side of the central rod 5 (cf. in particular the figures 3a to 3c ).
  • the sliding sleeve 6 entirely covers the central rod 5, with the exception of a zone 10 for fixing the rod on a support base 11 connected to the electromechanical elements for tripping and resetting the lock of the circuit breaker.
  • a zone 10 for fixing the rod on a support base 11 connected to the electromechanical elements for tripping and resetting the lock of the circuit breaker.
  • This is particularly illustrated on the figure 3a where we see the telescopic rod 3 in the folded state, the central rod 5 being visible only in the part of the fixing zone 10 where it is mounted by screwing on the support 11 which connects the reset lever 1 to the rest of the ACB circuit breaker tripping / reclosing device and mechanism.
  • the cylindrical sliding sleeve 6 has a circular cross section as suggested in the different figs of the illustrative example. This allows in particular a better grip.
  • the central rod 5 is in the form of a bar of rectangular section at the free end (that is to say that connected to the sliding sleeve 6) of rounded shape to allow it to pivot in the notch. 9.
  • the telescopic rod 3, the central rod 5, the sliding sleeve 6, the stopper 7 and the cylindrical shaft 8 are all made of metal, preferably of steel.
  • the central rod 5 is preferably made solid or solid.
  • circuit breaker according to the invention is further characterized in that the sliding sleeve 6 is covered by a coating of synthetic material, preferably provided with non-slip means. This further increases its ergonomics and allows greater safety of use.
  • the width of the elongated groove of the housing 2 is only slightly greater than that of the telescopic rod 3 of the pump reset lever 1. This is illustrated in Figures la to 1c. A particularly compact version is thus obtained and at least partial guidance of said lever in its stroke during pumping operations.
  • the invention it is possible to produce an ACB circuit breaker allowing, on the one hand, an easier and / or more comfortable pump reset that can be actuated by left-handed as well as right-handed people and, on the other hand, to preserve a construction as compact and aesthetic as possible while minimizing the risks of snagging which may exist on known circuit breaker models and having a protruding or partially protruding lever.
  • the pump reset lever 1 is independent of the other elements, in particular the locking or electromagnetic actuation means of the circuit breaker and can equally well be adapted to any type of circuit breaker of this type involving a trigger mechanism and a reset lever.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Description

La présente invention concerne le domaine des installations électriques, en particulier de la protection des différents circuits contre les surcharges telles que les courts-circuits, au moyen de disjoncteurs et a pour objet un tel disjoncteur muni d'un levier de réarmement par pompage amélioré. Elle s'adresse plus particulièrement à des disjoncteurs dits « ACB » (Air Circuit Breaker) utilisés pour des circuits à forts ampérages, c'est-à-dire majoritairement des ampérages supérieurs à 1000 A.The present invention relates to the field of electrical installations, in particular to the protection of the various circuits against overloads such as short circuits, by means of circuit breakers and relates to such a circuit breaker provided with an improved pump reset lever. It is aimed more particularly at so-called “ACB” (Air Circuit Breaker) circuit breakers used for high amperage circuits, that is to say mainly amperages greater than 1000 A.

Lesdits disjoncteurs ACB sont munis de serrures qui assurent un contact électrique au moyen d'un dispositif électro-magnéto-mécanique et qui est rompu ou ouvert, généralement à la suite d'un défaut de fonctionnement, soit en raison d'une consommation excessive de courant ayant pour conséquence un déclenchement dudit dispositif, soit en raison d'un court-circuit en ligne qui provoque l'actionnement du déclencheur magnétique. Un tel déclenchement est également nécessaire pour permettre des interventions de maintenance, ou autres, en aval de l'appareillage de sécurité, afin d'éviter les risques d'électrocution de l'opérateur inhérents à un travail sur un circuit sous tension.Said ACB circuit breakers are fitted with locks which ensure electrical contact by means of an electro-magneto-mechanical device and which is broken or opened, generally following a malfunction, or due to excessive consumption of current resulting in tripping of said device, or due to a line short-circuit which causes actuation of the magnetic trip device. Such tripping is also necessary to allow maintenance or other interventions downstream of the safety equipment, in order to avoid the risks of electrocution to the operator inherent in working on a live circuit.

Le contact électrique se fait généralement entre deux parties conductrices mobiles l'une par rapport à l'autre (dont l'une est fixe) maintenues ensemble à l'aide de ressorts de contact qui sont comprimés. Lors du déclenchement, le ressort se détend brutalement interrompant quasi instantanément le flux du courant.Electrical contact is generally made between two conductive parts movable with respect to each other (one of which is fixed) held together by means of contact springs which are compressed. When triggered, the spring suddenly relaxes, almost instantly interrupting the flow of current.

Afin de rétablir le courant un ré-enclenchement est donc nécessaire. Compte tenu des ampérages / voltages mis en œuvre avec ce type de disjoncteur, la force exigée pour refermer le circuit est suffisamment élevée pour nécessiter l'utilisation d'un levier de chargement, ci-après désigné par levier de réarmement par pompage. On peut également faire appel à un moteur électrique d'appoint, en particulier pour les appareils dotés d'une fonction de réarmement à distance. A titre d'exemple, cette force peut atteindre 90 à 100 N et varie selon le nombre des cycles de pompage, les performances et spécifications du disjoncteur ACB, notamment.In order to restore the current, reclosing is therefore necessary. Taking into account the amperages / voltages implemented with this type of circuit breaker, the force required to close the circuit is high enough to require the use of a loading lever, hereinafter referred to as a pump reset lever. An additional electric motor can also be used, in particular for devices with a remote reset function. By way of example, this force can reach 90 to 100 N and varies according to the number of pumping cycles, the performance and specifications of the ACB circuit breaker, in particular.

Les leviers existants sont généralement réalisés en une seule longue pièce, par exemple en plastique moulée, dont l'extrémité sert de poignée. Compte tenu des dimensions relativement réduites des boîtiers formant le disjoncteur ACB en question, les leviers existants sont donc relativement courts et donc peu ergonomiques et/ou font saillie dudit boîtier, avec alors un risque de détérioration accidentel plus élevé dudit levier voire de blessure de l'utilisateur qui risque de heurter un levier trop proéminent.The existing levers are generally made in one long piece, for example molded plastic, the end of which serves as a handle. Given the relatively small dimensions of the boxes forming the ACB circuit breaker in question, the existing levers are therefore relatively short and therefore not very ergonomic and / or protrude from said box, with then a higher risk of accidental deterioration of said lever or even injury to the user who risks hitting a too prominent lever.

Le document FR 1 336 010 a pour objet une poignée de manœuvre, notamment pour un interrupteur électrique, comprenant une douille faisant saillie du boîtier et dans laquelle une partie mobile peut s'éclipser télescopiquement et qui porte une boule pour la préhension. Une telle douille qui fait saillie dudit boîtier présente les inconvénients décrits précédemment.The document FR 1 336 010 The object is an operating handle, in particular for an electric switch, comprising a socket projecting from the housing and in which a movable part can be telescopically eclipsed and which carries a ball for gripping. Such a socket which protrudes from said housing has the drawbacks described above.

Le document EP1962311 a pour objet un appareil de commutation électrique comprenant un boîtier comprenant un couvercle comportant un renfoncement s'étendant de l'extérieur vers l'intérieur du boîtier et un ensemble de mise en charge comprenant une poignée de mise en charge mobile entre une première position dans laquelle la poignée est disposée de façon générale dans le renfoncement et une deuxième position dans laquelle la poignée s'étend vers l'extérieur à partir du renfoncement. Un tel appareil qui permet de résoudre le problème des leviers faisant saillie ne permet pas de faciliter l'actionnement de la poignée.The document EP1962311 relates to an electrical switching apparatus comprising a housing comprising a cover having a recess extending from the outside towards the interior of the housing and a charging assembly comprising a charging handle movable between a first position in wherein the handle is generally disposed in the recess and a second position in which the handle extends outwardly from the recess. Such an apparatus which makes it possible to solve the problem of protruding levers does not make it possible to facilitate the actuation of the handle.

La présente invention a pour but de pallier ces inconvénients en proposant un disjoncteur avec un levier de chargement ou de réarmement par pompage présentant une ergonomie améliorée ou au moins alternative aux solutions existantes.The object of the present invention is to alleviate these drawbacks by proposing a circuit breaker with a loading or pumping reset lever having improved ergonomics or at least an alternative to existing solutions.

A cet effet elle a pour objet un disjoncteur de type ACB (Air Circuit Breaker), essentiellement constitué par des éléments électromécaniques de déclenchement et de réarmement d'une serrure et pourvu d'un levier de réarmement par pompage, ce disjoncteur présentant une forme générale de boîtier renfermant lesdits éléments électromécaniques et dont la face frontale présente un logement en forme de rainure longiligne recevant ledit levier de réarmement par pompage, caractérisé en ce que le levier de réarmement par pompage présente une tige télescopique pouvant être déployée d'une position escamotée dans laquelle elle est reçue par le logement vers une position déployée sortant dudit logement lorsquèlle est actionnée pour le pompage, en ce que la tige télescopique est réalisée sous la forme d'une tige centrale revêtue d'un manchon coulissant sur ladite tige centrale et munie au niveau de son extrémité libre d'une butée d'arrêt pour ledit manchon coulissant et en ce que la butée d'arrêt est réalisée sous la forme d'un axe cylindrique servant également d'axe de rotation pour faire pivoter ledit manchon coulissant dans un plan perpendiculaire au plan de pivotement du levier de réarmement par pompage.To this end, its object is an ACB (Air Circuit Breaker) type circuit breaker, essentially constituted by electromechanical elements for tripping and resetting a lock and provided with a pump reset lever, this circuit breaker having a general shape housing enclosing said electromechanical elements and whose front face has a housing in the form of an elongated groove receiving said pumping reset lever, characterized in that the pumping reset lever has a telescopic rod that can be deployed from a retracted position in which it is received by the housing to a deployed position emerging from said housing when actuated for pumping, in that the telescopic rod is produced in the form of a central rod covered with a sleeve sliding on said central rod and provided at its free end with a stopper for said sliding sleeve and in that the stopper is produced in the form of a cylindrical axis also serving as an axis of rotation to rotate said sliding sleeve in a plane perpendicular to the pivot plane of the pump reset lever.

Cette solution permet de stocker ledit levier dans un espace protégé lorsqu'il n'est pas utilisé et, grâce au déploiement de son manche, d'augmenter le bras de levier et donc de diminuer la force à exercer pour chaque cycle ou opération de pompage visant à re-comprimer suffisamment le ressort jusqu'à ce que ce dernier permette de rétablir complètement le contact électrique grâce à la serrure. Cette opération peut alors se faire plus facilement de manière manuelle de sorte que le recours à un moteur n'est plus nécessaire. Comme l'espace de stockage du levier est intégré dans le boîtier même du disjoncteur, ce dernier reste de plus sous une forme compacte particulièrement avantageuse.This solution makes it possible to store said lever in a protected space when it is not in use and, thanks to the deployment of its handle, to increase the lever arm and therefore to reduce the force to be exerted for each cycle or pumping operation. aiming to sufficiently recompress the spring until the latter allows complete re-establishment of the electrical contact thanks to the lock. This operation can then be done more easily manually so that the use of a motor is no longer necessary. As the lever storage space is integrated into the circuit breaker box itself, the latter also remains in a particularly advantageous compact form.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence aux dessins schématiques annexés, dans lesquels :

  • les figures 1a, 1b et 1c sont des vues en perspective d'un disjoncteur ACB muni d'un levier de réarmement par pompage conforme à l'invention dans trois différentes positions ;
  • les figures 2a, 2b et 2c sont des vues simplifiées en coupe des figures 1a, 1b et 1c à travers le disjoncteur au niveau dudit levier et dans le sens de la hauteur et perpendiculairement à sa face frontale ;
  • les figures 3a, 3b et 3c sont des vues en perspective agrandies du levier des figures 1a, 1b et 1c et d'une partie de son support dans les mêmes positions ; et
  • les figures 4a, 4b et 4c sont des vues en perspective et en coupe médiane à travers le corps du levier des figures 3a, 3b et 3c et une partie de son support.
The invention will be better understood, thanks to the description below, which relates to preferred embodiments, given by way of nonlimiting examples, and explained with reference to the accompanying schematic drawings, in which:
  • the figures 1a, 1b and 1c are perspective views of an ACB circuit breaker provided with a pump reset lever according to the invention in three different positions;
  • the figures 2a, 2b and 2c are simplified sectional views of the figures 1a, 1b and 1c through the circuit breaker at said lever and in the direction of the height and perpendicular to its front face;
  • the figures 3a, 3b and 3c are enlarged perspective views of the lever figures 1a, 1b and 1c and part of its support in the same positions; and
  • the figures 4a, 4b and 4c are perspective and mid-section views through the body of the lever figures 3a, 3b and 3c and part of its support.

Les figures la à 1c des dessins annexés représentent un disjoncteur ACB qui est constitué par des éléments électromécaniques classiques de déclenchement et de réarmement au moyen d'une serrure et qui est pourvu d'un levier de réarmement par pompage 1. Un tel disjoncteur électrique de sécurité présente une forme générale de boîtier renfermant lesdits éléments électromécaniques et dont la face avant est traversée par ledit levier de réarmement par pompage 1.Figures la to 1c of the accompanying drawings show an ACB circuit breaker which consists of conventional electromechanical tripping and resetting elements by means of a lock and which is provided with a pump reset lever 1. Such an electric circuit breaker of The safety device has the general shape of a case enclosing said electromechanical elements and the front face of which is crossed by said pumping reset lever 1.

Conformément à la présente invention, ledit disjoncteur de type ACB (Air Circuit Breaker) est essentiellement constitué par des éléments électromécaniques de déclenchement et de réarmement d'une serrure et pourvu d'un levier de réarmement par pompage 1, ce disjoncteur présentant une forme générale de boîtier renfermant lesdits éléments électromécaniques et dont la face frontale présente un logement 2 en forme de rainure longiligne recevant ledit levier de réarmement par pompage 1. Il est caractérisé en ce que le levier de réarmement par pompage 1 présente une tige télescopique 3 pouvant être déployée d'une position escamotée dans laquelle elle est reçue par le logement 2 vers une position déployée sortant dudit logement 2 lorsqu'elle est actionnée pour le pompage.In accordance with the present invention, said ACB (Air Circuit Breaker) type circuit breaker is essentially constituted by electromechanical elements for tripping and resetting a lock and provided with a pump reset lever 1, this circuit breaker having a general shape. housing enclosing said electromechanical elements and whose front face has a housing 2 in the form of an elongated groove receiving said pumping reset lever 1. It is characterized in that the pumping reset lever 1 has a telescopic rod 3 which can be deployed from a retracted position in which it is received by the housing 2 to a deployed position exiting from said housing 2 when it is actuated for pumping.

La figure la représente ainsi le disjoncteur avec son levier de réarmement par pompage 1 qui est en position haute à l'état où il n'est pas utilisé et peut être rangé et stocké dans ledit logement 2. Afin d'en faciliter la sortie dudit logement 2, un moyen spécial de préhension et d'extraction 4 peut être prévu comme décrit ci-après.Figure la thus shows the circuit breaker with its pump reset lever 1 which is in the high position in the state where it is not in use and can be stowed away and stored in said housing 2. In order to facilitate the removal of said housing. housing 2, a special gripping and extraction means 4 can be provided as described below.

La figure 1b représente le disjoncteur avec son levier de réarmement par pompage 1 qui est en position sortie du logement 2 et légèrement abaissée mais toujours haute, à l'état où il n'est pas encore utilisé pour le pompage. On peut alors déployer la tige télescopique 3 et ainsi allonger la longueur efficace dudit levier de réarmement par pompage 1, par exemple en tirant sur le moyen de préhension et d'extraction 4. Dans l'exemple représenté, la longueur du levier de réarmement par pompage 1 peut ainsi être presque doublée (exemple : 10 cm en position rétractée - cf. fig. la pour 18 cm en position complètement déployée - cf. fig. 1b).The figure 1b shows the circuit breaker with its pump reset lever 1 which is in the extended position of housing 2 and slightly lowered but still high, in the state where it is not yet used for pumping. We can then deploy the telescopic rod 3 and thus extend the effective length of said pumping reset lever 1, for example by pulling on the gripping and extraction means 4. In the example shown, the length of the reset lever by pumping 1 can thus be almost doubled (example: 10 cm in the retracted position - see fig. 1 for 18 cm in the fully extended position - cf. fig. 1b ).

On peut à présent effectuer un ou plusieurs cycles de pompage jusqu'au réarmement complet du disjoncteur en tirant sur ledit levier déployé vers soi et vers le bas, ce qui comprime à chaque fois un peu plus le ressort de fermeture du dispositif de réarmement du disjoncteur jusqu'à atteindre le degré ou seuil de compression nécessaire au réarmement. Le système de protection est alors prêt à l'emploi et tout cycle de pompage additionnel s'opèrerait dans le vide c'est-à-dire sans avoir d'effet d'accumulation d'énergie sur ledit mécanisme. Ce mécanisme de pompage classique et connu en soi est largement employé dans le domaine des disjoncteurs de type ACB et ne nécessite donc pas plus de précisions. Il en va de même de tous les autres éléments constitutifs d'un tel disjoncteur.One or more pumping cycles can now be carried out until the circuit breaker is completely reset by pulling said lever extended towards you and downwards, which each time compresses the closing spring of the circuit breaker reset device a little more. until the degree or threshold of compression necessary for rearming is reached. The protection system is then ready for use and any additional pumping cycle would take place in a vacuum, that is to say without having an energy accumulation effect on said mechanism. This conventional pumping mechanism known per se is widely used in the field of ACB type circuit breakers and therefore does not require more details. The same is true of all the other components of such a circuit breaker.

Comme on le voit à la figure 1c, le mouvement de basculement ou de pivotement vertical vers le bas peut également être réalisé en faisant d'abord pivoter la portion déployée de la tige télescopique 3 vers la gauche (ou vers la droite - non représenté ici) de sorte à former une manette formant un angle droit avec la tige principale qui reliée au boîtier et mécanisme de pompage du disjoncteur. Ceci présente alors une alternative au mouvement de la figure 1b qui a l'avantage d'avoir un débattement plus réduit, la longueur efficace du levier de réarmement par pompage 1 étant moindre du fait de la portion repliée vers le côté, parallèlement à la face frontale du boîtier dudit disjoncteur.As seen at the figure 1c , the tilting or vertical downward pivoting movement can also be achieved by first pivoting the deployed portion of the telescopic rod 3 to the left (or to the right - not shown here) so as to form a lever forming a right angle with the main rod which connected to the circuit breaker housing and pumping mechanism. This then presents an alternative to the movement of the figure 1b which has the advantage of having a smaller clearance, the effective length of the pump reset lever 1 being shorter due to the portion bent to the side, parallel to the front face of the housing of said circuit breaker.

Comme évoqué ci-dessus, le disjoncteur selon l'invention est encore caractérisé en ce que la tige télescopique 3 est munie à son extrémité libre d'un moyen de préhension et d'extraction 4 de ladite tige télescopique 3 dudit logement 2, par exemple sous la forme d'une boucle ou d'une patte en matière plastique dépassant dudit logement 2. Ceci est également particulièrement bien visible sur les figures 3a à 3c, notamment où on voit que ce moyen 4 peut être réalisée sous la forme d'un embout vissé ou enfiché sur l'extrémité creuse du manchon coulissant 6 de la tige télescopique 3. Lorsque la tige télescopique 3 est complètement rentrée dans le logement 2, cette boucle ou patte ne dépasse pas ou très peu du boîtier du disjoncteur de sorte à éviter les accrochages (cf. fig. 2a). Grâce à l'espace libre situé en-dessous de la tige télescopique 3 dans le logement 2, elle reste néanmoins facilement accessible.As mentioned above, the circuit breaker according to the invention is further characterized in that the telescopic rod 3 is provided at its free end with means 4 for gripping and extracting said telescopic rod 3 from said housing 2, for example in the form of a loop or a plastic tab protruding from said housing 2. This is also particularly visible on the figures 3a to 3c , in particular where it is seen that this means 4 can be produced in the form of a screwed end piece or plugged into the hollow end of the sliding sleeve 6 of the telescopic rod 3. When the telescopic rod 3 is completely retracted in housing 2, this loop or tab does not protrude or very little from the circuit breaker housing so as to avoid snagging (cf. fig. 2a ). Thanks to the free space located below the telescopic rod 3 in the housing 2, it nevertheless remains easily accessible.

Ainsi, le disjoncteur selon l'invention est également caractérisé en ce que la tige télescopique 3 est réalisée sous la forme d'une tige centrale 5 revêtue d'un manchon coulissant 6 sur ladite tige centrale 5 et munie au niveau de son extrémité libre d'une butée d'arrêt 7 pour ledit manchon coulissant 6. Ceci est particulièrement bien visible sur les figures 3a à 3c ou 4a à 4c, par exemple.Thus, the circuit breaker according to the invention is also characterized in that the telescopic rod 3 is produced in the form of a central rod 5 coated with a sliding sleeve 6 on said central rod 5 and provided at its free end with 'a stopper 7 for said sliding sleeve 6. This is particularly visible on the figures 3a to 3c or 4a to 4c , for example.

Le disjoncteur selon l'invention est en outre caractérisé en ce que la butée d'arrêt 7 est réalisée sous la forme d'un axe cylindrique 8 servant également d'axe de rotation pour faire pivoter ledit manchon coulissant 6 dans un plan perpendiculaire au plan de pivotement du levier de réarmement par pompage 1. La butée d'arrêt 7 peut donc être réalisée dans la paroi dudit manchon coulissant 6 par des évidements dans lesquelles s'encastrent ledit axe cylindrique 8 ou simplement par sa paroi d'extrémité proche de la tige centrale 5.The circuit breaker according to the invention is further characterized in that the stopper 7 is produced in the form of a cylindrical axis 8 also serving as an axis of rotation for causing said sliding sleeve 6 to pivot in a plane perpendicular to the plane. of pivoting of the pumping reset lever 1. The stopper 7 can therefore be made in the wall of said sliding sleeve 6 by recesses in which said cylindrical pin 8 is fitted or simply by its end wall close to the central rod 5.

Selon une autre caractéristique, le manchon coulissant 6 est réalisé sous la forme d'un cylindre creux présentant, à son extrémité solidarisé avec la tige centrale 5 au moyen de l'axe cylindrique 8, une encoche 9 destinée à recevoir ladite tige centrale 5 et à la bloquer en pivotement de sorte que l'angle de pivotement dudit manchon coulissant 6 soit limité à 90° de chaque côté de la tige centrale 5 (cf. notamment les figures 3a à 3c).According to another characteristic, the sliding sleeve 6 is produced in the form of a hollow cylinder having, at its end secured to the central rod 5 by means of the cylindrical axis 8, a notch 9 intended to receive said central rod 5 and to block it in pivoting so that the pivot angle of said sliding sleeve 6 is limited to 90 ° on each side of the central rod 5 (cf. in particular the figures 3a to 3c ).

Avantageusement, le manchon coulissant 6 recouvre entièrement la tige centrale 5, à l'exception d'une zone de fixation 10 de la tige sur une embase de support 11 relié aux éléments électromécaniques de déclenchement et de réarmement de la serrure du disjoncteur. Ceci est notamment illustré sur la figure 3a où l'on voit la tige télescopique 3 à l'état repliée, la tige centrale 5 n'étant visible plus que dans la partie de la zone de fixation 10 où elle est montée par vissage sur le support 11 qui relie le levier de réarmement 1 au reste du dispositif et mécanisme de déclenchement/ré-enclenchement du disjoncteur ACB.Advantageously, the sliding sleeve 6 entirely covers the central rod 5, with the exception of a zone 10 for fixing the rod on a support base 11 connected to the electromechanical elements for tripping and resetting the lock of the circuit breaker. This is particularly illustrated on the figure 3a where we see the telescopic rod 3 in the folded state, the central rod 5 being visible only in the part of the fixing zone 10 where it is mounted by screwing on the support 11 which connects the reset lever 1 to the rest of the ACB circuit breaker tripping / reclosing device and mechanism.

De manière préférée, le manchon coulissant 6 cylindrique présente une section transversale de forme circulaire comme suggéré sur les différentes figues de l'exemple illustratif. Ceci permet notamment une meilleure prise en main. La tige centrale 5 se présente quant à elle sous la forme d'une barre de section rectangulaire à l'extrémité libre (c'est-à-dire celle reliée au manchon coulissant 6) de forme arrondie pour permettre son pivotement dans l'encoche 9.Preferably, the cylindrical sliding sleeve 6 has a circular cross section as suggested in the different figs of the illustrative example. This allows in particular a better grip. The central rod 5 is in the form of a bar of rectangular section at the free end (that is to say that connected to the sliding sleeve 6) of rounded shape to allow it to pivot in the notch. 9.

Avantageusement, la tige télescopique 3, la tige centrale 5, le manchon coulissant 6, la butée d'arrêt 7 et l'axe cylindrique 8 sont tous réalisés en métal, de préférence en acier. Pour plus de solidité, la tige centrale 5 est préférentiellement réalisée de façon pleine ou massive.Advantageously, the telescopic rod 3, the central rod 5, the sliding sleeve 6, the stopper 7 and the cylindrical shaft 8 are all made of metal, preferably of steel. For greater strength, the central rod 5 is preferably made solid or solid.

Enfin, le disjoncteur selon l'invention est encore caractérisé en ce que le manchon coulissant 6 est recouvert par un revêtement en matière synthétique, de préférence muni de moyens antidérapants. Ceci augment encore son ergonomie et permet une plus grande sécurité d'utilisation.Finally, the circuit breaker according to the invention is further characterized in that the sliding sleeve 6 is covered by a coating of synthetic material, preferably provided with non-slip means. This further increases its ergonomics and allows greater safety of use.

Selon une autre caractéristique, la largeur de la rainure longiligne du logement 2 n'est que légèrement plus grande que celle de la tige télescopique 3 du levier de réarmement par pompage 1. Ceci est illustré sur les figures la à 1c. On obtient ainsi une version particulièrement compacte et au moins un guidage partiel dudit levier dans sa course lors des opérations de pompage.According to another characteristic, the width of the elongated groove of the housing 2 is only slightly greater than that of the telescopic rod 3 of the pump reset lever 1. This is illustrated in Figures la to 1c. A particularly compact version is thus obtained and at least partial guidance of said lever in its stroke during pumping operations.

Grâce à l'invention, il est possible de réaliser un disjoncteur ACB permettant, d'une part, un réarmement par pompage plus facile et/ou plus confortable pouvant être actionné aussi bien par les gauchers que les droitiers et, d'autre part, de préserver une construction aussi compacte et esthétique que possible tout en minimisant les risques d'accrocs qui peuvent exister sur les modèles de disjoncteurs connus et présentant un levier faisant saillie ou partiellement saillie.Thanks to the invention, it is possible to produce an ACB circuit breaker allowing, on the one hand, an easier and / or more comfortable pump reset that can be actuated by left-handed as well as right-handed people and, on the other hand, to preserve a construction as compact and aesthetic as possible while minimizing the risks of snagging which may exist on known circuit breaker models and having a protruding or partially protruding lever.

Le levier de réarmement par pompage 1 selon l'invention est indépendant des autres éléments, notamment les moyens de serrure ou d'actionnement électromagnétique du disjoncteur et peut indifféremment être adapté à tout type de disjoncteur de ce type faisant intervenir un mécanisme à déclenchement et un levier de réarmement.The pump reset lever 1 according to the invention is independent of the other elements, in particular the locking or electromagnetic actuation means of the circuit breaker and can equally well be adapted to any type of circuit breaker of this type involving a trigger mechanism and a reset lever.

Claims (8)

  1. Air circuit breaker (ACB)-type circuit breaker consisting primarily of electromechanical elements for tripping and resetting a lock and provided with a pump-action reset lever (1), this circuit breaker taking the general form of a housing enclosing said electromechanical elements, the front face of which has a recess (2) in the form of a narrow groove accommodating said pump-action reset lever (1), characterized in that the pump-action reset lever (1) has a telescopic rod (3) that may be deployed from a retracted position, in which it is accommodated by the recess (2), to a deployed position protruding from said recess (2) when it is actuated for pumping, and in that the telescopic rod (3) is produced in the form of a central rod (5) ensheathed by a sliding sleeve (6) sliding over said central rod (5) and provided, at its free end, with an end stop (7) for said sliding sleeve (6) and in that the end stop (7) is produced in the form of a cylindrical axle (8) which is also used as an axis of rotation for pivoting said sliding sleeve (6) in a plane that is perpendicular to the plane in which the pump-action reset lever (1) pivots.
  2. Circuit breaker according to Claim 1, characterized in that the telescopic rod (3) is provided, at its free end, with a means (4) for gripping said telescopic rod (3) and for withdrawing it from said recess (2), which means takes for example the form of a loop or of a lug made of plastic material protruding from said recess (2).
  3. Circuit breaker according to Claim 1 or 2, characterized in that the sliding sleeve (6) is produced in the form of a hollow cylinder having, at its end that is rigidly connected to the central rod (5) by means of the cylindrical axle (8), a notch (9) that is intended to accommodate said central rod (5) and to prevent it from pivoting such that the pivoting angle of said sliding sleeve (6) is limited to 90° on each side of the central rod (5) .
  4. Circuit breaker according to any one of Claims 1 to 3, characterized in that the sliding sleeve (6) entirely covers the central rod (5) with the exception of a zone (10) for the attachment of the rod to a supporting base (11), which supporting base is connected to the electromechanical elements for tripping and resetting the lock of the circuit breaker.
  5. Circuit breaker according to any one of Claims 1 to 4, characterized in that the cross section of the cylindrical sliding sleeve (6) is circular in shape.
  6. Circuit breaker according to any one of Claims 1 to 5, characterized in that the telescopic rod (3), the central rod (5), the sliding sleeve (6), the end stop (7) and the cylindrical axle (8) are all made of metal, preferably of steel.
  7. Circuit breaker according to any one of Claims 1 to 6, characterized in that the sliding sleeve (6) is coated with a coating made of synthetic material, preferably provided with anti-slip means.
  8. Circuit breaker according to any one of Claims 1 to 7, characterized in that the width of the narrow groove of the recess (2) is only slightly greater than that of the telescopic rod (3) of the pump-action reset lever (1).
EP17811997.0A 2016-11-17 2017-11-16 Circuit breaker provided with a telescopic pump-action reset lever Active EP3542388B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1661118A FR3058829B1 (en) 2016-11-17 2016-11-17 CIRCUIT BREAKER WITH TELESCOPIC PUMP REARMING LEVER
PCT/FR2017/053141 WO2018091833A1 (en) 2016-11-17 2017-11-16 Circuit breaker provided with a telescopic pump-action reset lever

Publications (2)

Publication Number Publication Date
EP3542388A1 EP3542388A1 (en) 2019-09-25
EP3542388B1 true EP3542388B1 (en) 2020-10-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17811997.0A Active EP3542388B1 (en) 2016-11-17 2017-11-16 Circuit breaker provided with a telescopic pump-action reset lever

Country Status (5)

Country Link
EP (1) EP3542388B1 (en)
JP (1) JP2019537219A (en)
CN (1) CN109923634B (en)
FR (1) FR3058829B1 (en)
WO (1) WO2018091833A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111508790B (en) * 2020-03-13 2022-05-27 安德利集团有限公司 Electronic molded case circuit breaker

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
FR1336010A (en) * 1962-10-16 1963-08-23 Bbc Brown Boveri & Cie Operating handle, in particular for an electrical switch
US5931290A (en) * 1998-05-07 1999-08-03 Eaton Corporation Close prop and latch assembly for stored energy operating mechanism of electrical switching apparatus
US8217290B2 (en) * 2007-02-16 2012-07-10 Eaton Corporation Electrical switching apparatus, and charging assembly and charging handle therefor
CN201374263Y (en) * 2009-03-12 2009-12-30 江苏凯隆电器有限公司 Locking and unlocking device for working position of drawer-type air circuit breaker

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Also Published As

Publication number Publication date
CN109923634A (en) 2019-06-21
JP2019537219A (en) 2019-12-19
CN109923634B (en) 2021-09-28
EP3542388A1 (en) 2019-09-25
WO2018091833A1 (en) 2018-05-24
FR3058829A1 (en) 2018-05-18
FR3058829B1 (en) 2019-11-15

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