EP2733720A1 - Thermal-magnetic tripping device for tripping a polyphase circuit breaker - Google Patents

Thermal-magnetic tripping device for tripping a polyphase circuit breaker Download PDF

Info

Publication number
EP2733720A1
EP2733720A1 EP20130354040 EP13354040A EP2733720A1 EP 2733720 A1 EP2733720 A1 EP 2733720A1 EP 20130354040 EP20130354040 EP 20130354040 EP 13354040 A EP13354040 A EP 13354040A EP 2733720 A1 EP2733720 A1 EP 2733720A1
Authority
EP
European Patent Office
Prior art keywords
transmission bar
pawl
transmission
pivot axis
bar
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
EP20130354040
Other languages
German (de)
French (fr)
Other versions
EP2733720B1 (en
Inventor
Claude Rubbo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2733720A1 publication Critical patent/EP2733720A1/en
Application granted granted Critical
Publication of EP2733720B1 publication Critical patent/EP2733720B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage

Definitions

  • the invention relates to a magnetothermal trip device for monitoring a plurality of phase currents flowing through a polyphase circuit breaker and for tripping this polyphase circuit breaker in the event of an anomaly affecting at least one of the phase currents.
  • a circuit breaker can be used to simultaneously provide two protections, namely protection against persistent overcurrents, also called overloads of current, and protection against very high currents resulting from a short circuit.
  • the tripping of the circuit-breaker that is to say the opening of its contacts, can be controlled by a thermomagnetic trip unit, which recognizes the current overloads as short-circuits.
  • EP 0 848 404 a part of a magnetothermal trip device is described which has many advantages, for example the advantage of being directly associated with any one or more polyphase breakers of a certain type, so as to be able to control their tripping. .
  • Another part of this magnetothermal circuit breaker is presented in the European patent application EP 0 542 641 .
  • the European patent application EP 0 954 002 proposes a circuit breaker able to mechanically display the cause of a trip among a current overload and a short circuit.
  • Another example of a circuit breaker that can mechanically display the cause of a trip among a current overload and a short circuit is in the patent. US 6,239,677 United States of America.
  • the mechanism for tripping the circuit breaker in the event of a short-circuit or overload is complex and has many components.
  • this mechanism is bulky and it is not adaptable or easily adaptable to certain circuit breakers.
  • the object of the invention is at least to enable a magnetothermal trip device for monitoring a plurality of phase and tripping currents of a circuit breaker to be able to mechanically display the cause of tripping among a current overload and a short circuit. -circuit, while not very complex.
  • the first and second transmission bars are decoupled from one another in rotation about the pivot axis.
  • the trigger comprises a first elastic member reminding the first transmission bar to a rest position, a second elastic member reminding the second transmission bar to a rest position, and a third elastic member reminding the ratchet to away from its release position and towards its locking position.
  • the first transmission bar comprises a plurality of first bearings threaded onto the support shaft, as well as at least a first connecting bar rigidly connecting the first bearings to each other, the second transmission bar having a plurality of second bearings threaded onto the support shaft. support, and at least a second connecting bar rigidly connecting the second bearings to each other, the first and second bearings being offset with each other along said pivot axis.
  • the first transmission bar comprises first arms arranged so that, by acting on one of these arms, each thermal actuator can rotate the first transmission bar in the second direction.
  • the second transmission bar has second arms arranged so that, by acting on one of these arms, each magnetic actuator can rotate the second transmission bar in the second direction.
  • a magnetothermal trip and polyphase 1 is intended to be associated with a polyphase circuit breaker not shown, such as that described in the European patent application EP 0 542 636 .
  • the purpose of trigger 1 is to monitor the phase currents flowing in the polyphase circuit breaker phases and to trip this circuit breaker in the event of a current overload in one of the phases or in the event of a short circuit affecting at least one of the phases. one of the phases.
  • the trigger 1 has three phases 2, each of which comprises a conductor 3 intended to be traversed by one of the phase currents to be monitored.
  • the trigger 1 comprises an insulating envelope, which comprises an assembly box 4 and a front panel 5 fixed to one another.
  • Each conductor 3 has the shape of a tab several times bent, each end of which forms an electrical connection terminal 6 protruding outside the assembly box 4.
  • a pivoting adjustment member 7 is accessible through a hole in the frontage 5.
  • the trigger 1 comprises two identical indicators 11 and 12, whose function is to indicate together which cause among a current overload and a short circuit was at the origin of a past trip command. More specifically, when a past trip command has been generated by the circuit breaker 1 due to a current overload crossing a conductor 3, this is indicated by the indicator 11.
  • the indicator 12 is used to signal each trip command past that was generated by the circuit breaker 1 due to a short circuit.
  • Each of the indicators 11 and 12 comprises a push button 13 and a window 14 passing through the facade 5 from one side to the other.
  • each of the indicators 11 and 12 further comprises a signal member 15, which mounted behind a front wall of the front 5 so as to be pivotable about a pivot axis XX 'substantially perpendicular to the front wall.
  • Each push button 13 passes through the front 5, at the level of a finger of one of the signaling members 15. It can exert a transverse thrust on the finger, after having itself been pushed manually from the outside.
  • the trigger 1 comprises an energy storage mechanism 20 known per se, a striker 21 is visible at the figure 3 .
  • This striker 21 is a trigger piece that can be tilted about a tilting axis Y 1 -Y ' 1 , between a neutral position and an active position to which the striker 1 is resiliently biased by a spring not visible in the figures.
  • the energy storage mechanism 20 is armed, insofar as the striker 21 is retained in its neutral position because of its attachment to a pawl 30 itself being in a latching position.
  • the pawl 30 is part of an intermediate transmission device which comprises two other pivoting parts, namely two transmission rods 31 and 32.
  • the pawl 30 and the transmission rods 31 and 32 are mounted on one and the same common support shaft 33. , so that they can all pivot around the same pivot axis Y 2 -Y ' 2 .
  • the support shaft 33 is secured to the housing 4 by its two opposite ends.
  • the transmission bars 31 and 32 are decoupled from each other in pivoting about their common pivot axis Y 2 -Y ' 2 .
  • a compression spring 34 forms an elastic return member of the pawl 30 towards its hooking position, about the pivot axis Y 2 -Y ' 2 , in a direction S 1 .
  • the reference S 2 designates the opposite direction in the S 1 direction.
  • a compression spring 35 forms a resilient return member of the transmission bar 31 in the direction S 1 , about the pivot axis Y 2 -Y ' 2 , to a rest position.
  • a torsion spring 36 forms a resilient return member of the transmission bar 32 in the direction S 1 , about the pivot axis Y 2 -Y ' 2 , to a rest position.
  • a bimetallic thermal actuator 40 is provided for each phase.
  • the thermal actuators 40 are shown schematically in the figure 4 . Each of them may possess the constitution and operation described in the patent application European EP 0 542 641 supra.
  • Each thermal actuator 40 is configured to generate a mechanical triggering command in response to a current overload in the corresponding phase.
  • This mechanical triggering control has the form of a thrust that a head 41 of the thermal actuator 40 exerts on the transmission bar 31 and which acts in the opposite direction of the spring 35, in the direction S 2 around the Y-axis 2 -Y ' 2 .
  • the arrow P 1 symbolizes an example of such a thrust exerted by a thermal actuator 40.
  • a magnetic actuator 42 is provided for each phase.
  • the magnetic actuators 42 are shown schematically in the figure 4 . Each of them may possess the constitution and operation described in the European patent application EP 0 848 404 supra.
  • Each magnetic actuator 42 is configured to generate a mechanical triggering command in response to a short circuit relating to the corresponding phase.
  • This mechanical triggering control has the form of a thrust that a movable flap 43 of the magnetic actuator 42 exerts on the transmission bar 32 and which acts in the opposite direction of the spring 36, in the direction S 2 around the Y axis 2 -Y ' 2 .
  • the arrow P 2 symbolizes an example of such a thrust exerted by a magnetic actuator 42.
  • the transmission bar 31 is shown alone at the figure 5 . It comprises three mounting bearings 50, which are threaded onto the support shaft 33, offset between them along the pivot axis Y 2 -Y ' 2 and rigidly connected by an axial connecting bar 51. Transmission 31 also comprises as many arms 52 for receiving a thrust P 1 as there are thermal actuators 40. Each mounting bearing 50 carries one of the arms 52, each of which comprises an attached pusher 53 remote from the pivot axis Y 2 -Y ' 2 .
  • each head 41 can exert a mechanical triggering control in the form of a thrust P 1 , on a pusher 53 in order to rotate the transmission rod 31 in the direction S 2 in response to a current overload.
  • One of the arms 52 carries a finger 54 for actuating the signaling member 15 of the indicator 11.
  • the transmission bar 51 has a shoulder 55 for pushing on the pawl 30 to drive it into its release position, as will be specified later.
  • the transmission rod 31 can be slid along the support shaft 33. Its axial position can be adjusted by means of the adjustment member 7.
  • the transmission bar 31 comprises a coupling fork 56 to this adjustment member 7.
  • the bearings 50, the bar 51, the arms 52, the finger 54 and the fork 56 are part of an integral piece, molded in polymer, to which the pushers 53 are fixed.
  • the transmission bar 32 is shown alone at the figure 6 . It comprises three mounting bearings 60, which are threaded onto the support shaft 33, offset between them along the pivot axis Y 2 -Y ' 2 and rigidly connected by an axial connecting bar 61.
  • the bar of FIG. transmission 32 also comprises as many arms 62 for receiving a thrust P 2 as there are magnetic actuators 42. Carried by one of the hubs 60, each arm 62 comprises a pusher 63 remote from the pivot axis Y 2 -Y ' 2 .
  • each flap 43 can exert a mechanical triggering control in the form of a thrust P 2 , on a pusher 63 , in order to rotate the transmission bar 32 in the direction S 2 , in response to a short circuit.
  • a bearing 60 carries an arm 64 for actuating the signaling member 15 of the indicator 12.
  • Each of two successive bearings 60 carries a hooking lug 65, which defines one of two flat surfaces 66 of thrust on the pawl 30 so as to drive it into its release position, as will be specified later.
  • the transmission bar 32 is a single piece, molded of polymer.
  • the pawl 30 is shown alone to figures 7 and 8 . It comprises a mounting hub 70, which is threaded onto the support shaft 33 and which carries a finger 71 for retaining the striker 21 by hooking. At a distance from the hub 70, the free end of the finger 71 is provided with a catch 72 for attaching the striker 21.
  • the pawl 30 defines a surface 73 extending outwardly from the hub 70, substantially parallel to the Y 2 -Y ' 2 axis. This surface 73 is configured to cooperate with the shoulder 55 and to receive a thrust of the latter.
  • the pawl 30 further defines two surfaces 74 extending outwardly from the hub 70, substantially parallel to the Y 2 -Y ' 2 axis. These surfaces 74 are configured to cooperate with the thrust surfaces 66 and to simultaneously receive thrusts thereof.
  • a signaling member 15 is shown alone at the figure 9 . It comprises a crank arm 80, which is pierced with a mounting hole of a not shown support shaft, centered on the pivot axis X-X '.
  • the crank arm 80 carries a rear crank pin 81 offset relative to the pivot axis X-X ', a flexible finger 82 substantially perpendicular to this pivot axis X-X', and a flexible arc 83 for returning the crank. the signaling member 15 to a masked state.
  • the finger 82 is elastically flexible rearwardly, in a plane parallel to the pivot axis X-X '. Its free end carries a projection 84 able to engage in a window 14 and thus lock the signal member 15 in a visible state indicating that a trip has occurred.
  • the thermal actuator 40 associated with this phase 3 produces a displacement resulting in a thrust P 1 , rotating the transmission rod 31 in the direction S 2 .
  • the shoulder 55 clings to the surface 73 and then pushes on it in the direction S 2 and thus pivots the pawl 30 to its release position, which is illustrated by the figure 10 .
  • the striker 21 has unhooked the spout 72 and it will move and accelerate until a percussion causing the tripping of the circuit breaker.
  • the pivoting of the transmission rod 31 in the direction S 2 causes the finger 54 to push on the pin 81 present in the indicator 11 and thus actuate the signaling member 15 of the indicator 11.
  • this signaling member 15 Prior to the appearance of a current overload, this signaling member 15 was in its masked state, which is the one shown in FIG. figure 12 .
  • the signaling member 15 of the indicator 11 is held in the same angular position as at the figure 2 due to the elastic return exerted by its flexible bow 83. It is then completely masked by the facade 5.
  • the finger 82 of the indicator 11 is curved resiliently towards the rear.
  • the finger 54 rotates the signal member 15 of the indicator 11, about the pivot axis XX 'corresponding, against the bias exerted by the arc 83 of this signaling member 15.
  • the signaling member 15 of the indicator 11 has changed state and it is in its visible state, which is the one shown in FIGS. Figures 13 and 14 .
  • the finger 82 of the indicator 11 has recovered itself and is now rectilinear. Its projection 84 is engaged in the window 14 of the indicator 11, which locks the signal member 15 of the indicator 11 in its visible state. The visible presence of the projection 84 of the indicator 11 in the window 14 of this indicator 11 indicates that a trip following a current overload has occurred.
  • the pivoting of the transmission bar 32 in the direction S 2 causes the arm 64 to push on the crank pin 81 of the signaling member 15, in the indicator 12, and thus actuate this signaling member 15.
  • the signaling member 15 of the indicator 12 was in its masked state, which is the one shown in FIG. figure 2 .
  • this signaling member 15 has changed state and it is in its visible state, which is that of the figure 17 and which is analogous to the state represented in figure 13 .
  • the visible presence of the projection 84 of the indicator 12 in the window 14 of the same indicator 12 indicates that a trip following a short circuit has occurred.
  • the transmission bar 32 is configured to be part of a large-caliper magnetothermal trip unit. Modifications can be made to this bar to adapt it to a small magnetothermal release. These modifications may relate in particular to the conformation of the arms 62 and their angular position around the axis Y 2 -Y ' 2 .

Abstract

The device has a set of thermal actuators (40), where each actuator is designed to react to a current overload in one of a set of phases by generating mechanical tripping commands (P1, P2). A transmission bar (31) is fitted on a support shaft, and a ratchet (30) is fitted on the support shaft. Another transmission bar (32) drives the ratchet from its latched position to its released position so as to change a state of an indicator. The former transmission bar and the latter transmission bar are disconnected from one another while pivoting around a pivoting axis (Y2, Y'2).

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un déclencheur magnétothermique de surveillance de plusieurs courants de phase traversant un disjoncteur polyphasé et de déclenchement de ce disjoncteur polyphasé en cas d'anomalie affectant au moins l'un des courants de phase.The invention relates to a magnetothermal trip device for monitoring a plurality of phase currents flowing through a polyphase circuit breaker and for tripping this polyphase circuit breaker in the event of an anomaly affecting at least one of the phase currents.

État de la techniqueState of the art

Un disjoncteur peut être employé pour procurer simultanément deux protections, à savoir une protection contre des surintensités persistantes, encore appelées surcharges de courant, et une protection contre des courants très élevés résultant d'un court-circuit. Le déclenchement du disjoncteur, c'est-à-dire l'ouverture de ses contacts, peut être commandé par un déclencheur magnétothermique, qui reconnaît les surcharges de courant comme les courts-circuits.A circuit breaker can be used to simultaneously provide two protections, namely protection against persistent overcurrents, also called overloads of current, and protection against very high currents resulting from a short circuit. The tripping of the circuit-breaker, that is to say the opening of its contacts, can be controlled by a thermomagnetic trip unit, which recognizes the current overloads as short-circuits.

Dans la demande de brevet européen EP 0 848 404 , il est décrit une partie d'un déclencheur magnétothermique qui possèdé de nombreux avantages, par exemple l'avantage de pouvoir être directement associé à n'importe lequel de plusieurs disjoncteurs polyphasés d'un certain type, de manière à pouvoir en commander le déclenchement. Une autre partie de ce disjoncteur magnétothermique est présentée dans la demande de brevet européen EP 0 542 641 . Le déclencheur magnétothermique exposé dans les demandes EP 0 848 404 et EP 0 542 641 précitées ne permet pas de connaître la cause d'un déclenchement, quelle que soit cette cause.In the European patent application EP 0 848 404 a part of a magnetothermal trip device is described which has many advantages, for example the advantage of being directly associated with any one or more polyphase breakers of a certain type, so as to be able to control their tripping. . Another part of this magnetothermal circuit breaker is presented in the European patent application EP 0 542 641 . The magnetothermal release exposed in the applications EP 0 848 404 and EP 0 542 641 above, it is not possible to know the cause of a trip, whatever may be the cause.

Après un déclenchement provoqué par un court-circuit, l'origine de ce court-circuit doit être recherchée avant que le disjoncteur soit de nouveau fermé. Un déclenchement consécutif à une surcharge de courant ne nécessite généralement pas les mêmes mesures d'inspection qu'un déclenchement provoqué par un court-circuit. Il est donc souhaitable de pouvoir savoir si, après un déclenchement d'un disjoncteur, la cause de ce déclenchement était une surcharge de courant ou un court-circuit.After tripping caused by a short circuit, the origin of this short circuit must be sought before the circuit breaker is closed again. A trip following a current overload usually does not require the same inspection measures as a trip caused by a short circuit. It is therefore desirable to be able to know if, after a tripping of a circuit breaker, the cause of this tripping was a current overload or a short circuit.

La demande de brevet européen EP 0 954 002 propose un disjoncteur à même d'afficher mécaniquement la cause d'un déclenchement parmi une surcharge de courant et un court-circuit. Un autre exemple d'un disjoncteur pouvant afficher mécaniquement la cause d'un déclenchement parmi une surcharge de courant et un court-circuit se trouve dans le brevet US 6 239 677 des Etats-Unis d'Amérique. Dans le disjoncteur présenté dans ce brevet US 6 239 677 des Etats-Unis d'Amérique comme dans celui décrit dans la demande de brevet européen EP 0 954 002 précitée, le mécanisme pour déclencher le disjoncteur en cas de court-circuit ou de surcharge de courant est complexe et comporte de nombreux constituants. En outre, ce mécanisme est volumineux et il n'est pas adaptable ou aisément adaptable à certains disjoncteurs.The European patent application EP 0 954 002 proposes a circuit breaker able to mechanically display the cause of a trip among a current overload and a short circuit. Another example of a circuit breaker that can mechanically display the cause of a trip among a current overload and a short circuit is in the patent. US 6,239,677 United States of America. In the circuit breaker presented in this patent US 6,239,677 of the United States of America as in that described in the European patent application EP 0 954 002 As mentioned above, the mechanism for tripping the circuit breaker in the event of a short-circuit or overload is complex and has many components. In addition, this mechanism is bulky and it is not adaptable or easily adaptable to certain circuit breakers.

Résumé de l'inventionSummary of the invention

L'invention a au moins pour but de permettre qu'un déclencheur magnétothermique de surveillance de plusieurs courants de phase et de déclenchement d'un disjoncteur soit à même d'afficher mécaniquement la cause d'un déclenchement parmi une surcharge de courant et un court-circuit, tout en étant peu complexe.The object of the invention is at least to enable a magnetothermal trip device for monitoring a plurality of phase and tripping currents of a circuit breaker to be able to mechanically display the cause of tripping among a current overload and a short circuit. -circuit, while not very complex.

Selon l'invention, ce but est atteint grâce à un déclencheur magnétothermique de surveillance de plusieurs courants de phase traversant un disjoncteur polyphasé et de déclenchement de ce disjoncteur polyphasé en cas d'anomalie affectant au moins l'un des courants de phase. Ce déclencheur magnétothermique comporte :

  • plusieurs phases,
  • plusieurs actionneurs thermiques dont chacun est prévu pour réagir à une surcharge de courant dans une des phases en générant une commande mécanique de déclenchement,
  • plusieurs actionneurs magnétiques dont chacun est prévu pour réagir à un court-circuit dans une des phases en générant une commande mécanique de déclenchement,
  • un dispositif intermédiaire de transmission configuré pour pouvoir recevoir n'importe laquelle des commandes mécanique de déclenchement et comportant un cliquet rappelé élastiquement dans un premier sens, vers une position de verrouillage, et agencé de manière qu'une réception d'une commande de déclenchement par le dispositif de transmission amène ce cliquet à passer de sa position de verrouillage, dans laquelle le cliquet peut retenir par accrochage une pièce de déclenchement dans un état neutre, à une position de libération, dans laquelle la pièce de déclenchement est décrochée du cliquet,
  • un arbre de support sur lequel le cliquet est monté de manière à pouvoir pivoter autour d'un axe de pivotement, entre ses positions de verrouillage et de libération,
  • un premier indicateur prévu pour signaler un déclenchement provoqué par une surcharge de courant, et
  • un deuxième indicateur prévu pour signaler un déclenchement provoqué par un court-circuit.
According to the invention, this object is achieved by means of a magnetothermal trip device for monitoring a plurality of phase currents flowing through a polyphase circuit breaker and tripping this polyphase circuit breaker in the event of an anomaly affecting at least one of the phase currents. This magnetothermal trigger comprises:
  • several phases,
  • a plurality of thermal actuators each of which is provided to react to a current overload in one of the phases by generating a mechanical triggering command,
  • a plurality of magnetic actuators each of which is provided to react to a short circuit in one of the phases by generating a mechanical triggering command,
  • an intermediate transmission device configured to be able to receive any of the mechanical triggering commands and having a pawl resiliently biased in a first direction, to a locking position, and arranged so that a reception of a tripping command by the transmission device causes this pawl to pass from its locking position, in which the pawl can hold a trigger piece in a neutral state, in a release position, in which the trigger piece is detached from the pawl,
  • a support shaft on which the pawl is rotatably mounted about a pivot axis, between its locking and releasing positions,
  • a first indicator intended to signal a tripping caused by a current overload, and
  • a second indicator provided to signal a trigger caused by a short circuit.

Le dispositif intermédiaire de transmission comporte :

  • une première barre de transmission montée sur ledit arbre de support de manière à pouvoir être pivotée autour du même axe de pivotement que le cliquet, dans un deuxième sens contraire au premier sens, par n'importe lequel des actionneurs thermiques, selon un mouvement lors duquel cette première barre de transmission à la fois entraîne le cliquet de sa position de verrouillage à sa position de libération et fait changer d'état le premier indicateur, et
  • une deuxième barre de transmission montée sur ledit arbre de support de manière à pouvoir être pivotée autour du même axe de pivotement que le cliquet, dans le deuxième sens, par n'importe lequel des actionneurs magnétiques, selon un mouvement lors duquel cette deuxième barre de transmission à la fois entraîne le cliquet de sa position de verrouillage à sa position de libération et fait changer d'état le deuxième indicateur.
The intermediate transmission device comprises:
  • a first transmission bar mounted on said support shaft so as to be pivotable about the same pivot axis as the pawl, in a second direction contrary to the first direction, by any of the thermal actuators, according to a movement in which this first transmission bar at the same time drives the pawl from its locking position to its release position and causes the first indicator to change state, and
  • a second transmission bar mounted on said support shaft so as to be pivotable about the same pivot axis as the pawl, in the second direction, by any of the magnetic actuators, according to a movement in which this second bar of transmission at a time drives the pawl from its locking position to its release position and causes the second indicator to change state.

Les premières et deuxièmes barres de transmission sont découplées l'une de l'autre en pivotement autour de l'axe de pivotement.The first and second transmission bars are decoupled from one another in rotation about the pivot axis.

Selon une réalisation préférentielle, le déclencheur comporte un premier organe élastique rappelant la première barre de transmission vers une position de repos, un deuxième organe élastique rappelant la deuxième barre de transmission vers une position de repos, et un troisième organe élastique rappelant le cliquet à l'écart de sa position de libération et vers sa position de verrouillage. La première barre de transmission comporte plusieurs premiers paliers enfilés sur l'arbre de support, ainsi qu'au moins une première barrette de liaison associant rigidement les premiers paliers entre eux, la deuxième barre de transmission comportant plusieurs deuxièmes paliers enfilés sur l'arbre de support, ainsi qu'au moins une deuxième barrette de liaison associant rigidement les deuxièmes paliers entre eux, les premiers et deuxièmes paliers étant décalés entre eux le long dudit axe de pivotement.According to a preferred embodiment, the trigger comprises a first elastic member reminding the first transmission bar to a rest position, a second elastic member reminding the second transmission bar to a rest position, and a third elastic member reminding the ratchet to away from its release position and towards its locking position. The first transmission bar comprises a plurality of first bearings threaded onto the support shaft, as well as at least a first connecting bar rigidly connecting the first bearings to each other, the second transmission bar having a plurality of second bearings threaded onto the support shaft. support, and at least a second connecting bar rigidly connecting the second bearings to each other, the first and second bearings being offset with each other along said pivot axis.

Selon une caractéristique de l'invention, la première barre de transmission comporte des premiers bras agencés de manière que, en agissant sur l'un de ces bras, chaque actionneur thermique peut faire pivoter la première barre de transmission dans le deuxième sens.According to a feature of the invention, the first transmission bar comprises first arms arranged so that, by acting on one of these arms, each thermal actuator can rotate the first transmission bar in the second direction.

D'une manière similaire, la deuxième barre de transmission comporte des deuxièmes bras agencés de manière que, en agissant sur l'un de ces bras, chaque actionneur magnétique peut faire pivoter la deuxième barre de transmission dans le deuxième sens.In a similar manner, the second transmission bar has second arms arranged so that, by acting on one of these arms, each magnetic actuator can rotate the second transmission bar in the second direction.

L'un au moins des premier et deuxième indicateurs comporte :

  • une fenêtre ménagée à travers une enveloppe du déclencheur magnétothermique, et
  • un organe de signalement déplaçable entre un premier état, dans lequel aucune portion de cet organe de signalement ne se trouve au niveau de la fenêtre, et un deuxième état, dans lequel l'organe de signalement est au moins partiellement visible de l'extérieur par la fenêtre.
At least one of the first and second indicators comprises:
  • a window formed through an envelope of the magnetothermal release, and
  • a signaling member displaceable between a first state, in which no portion of this signaling member is at the level of the window, and a second state, in which the signaling member is at least partially visible from the outside by the window.

Description sommaire des dessinsBrief description of the drawings

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

  • la figure 1 est une vue en perspective d'un déclencheur magnétothermique conforme à l'invention et prévu pour être associé à un disjoncteur polyphasé de manière à pouvoir en commander le déclenchement,
  • la figure 2 est une vue de face représentant le même déclencheur que la figure 1, sans sa façade avant,
  • la figure 3 est une vue en perspective et en coupe selon le plan III de la figure 2, et représente le même déclencheur que la figure 1, sans sa façade avant,
  • la figure 4 est une vue en perspective, pour partie schématique, représentant seulement certains constituants internes du déclencheur de la figure 1, notamment une première barre de transmission, une deuxième barre de transmission et un cliquet d'un dispositif intermédiaire de transmission,
  • la figure 5 est une vue en perspective de la première barre de transmission visible à la figure 4,
  • la figure 6 est une vue en perspective de la deuxième barre de transmission visible à la figure 4,
  • la figure 7 est une vue en perspective du cliquet visible à la figure 4,
  • la figure 8 est une vue en perspective et en coupe représentant le même cliquet que la figure 7, sous un autre angle,
  • la figure 9 est une vue en perspective de l'un de deux organes de signalement identiques qui sont constitutifs du déclencheur de la figure 1 et servent dans l'indication visuelle de quelle sorte de cause est à l'origine d'un déclenchement commandé par ce déclencheur,
  • la figure 10 est un agrandissement d'une fenêtre extraite d'une vue en coupe selon un plan parallèle au plan III, avec perspective, et illustre un actionnement du cliquet de la figure 7 par la première barre de transmission représentée à la figure 5, en cas de surcharge de courant,
  • la figure 11 est un agrandissement d'une fenêtre extraite d'une vue en perspective et illustre un actionnement de l'organe de signalement de la figure 9 par la première barre de transmission représentée à la figure 5, en cas de surcharge de courant,
  • la figure 12 est une vue partielle et simplifiée, en coupe selon le plan XII de la figure 1, et représente l'organe de signalement de la figure 9, ainsi que d'autres constituants d'un indicateur constitutif du déclencheur de la figure 1,
  • la figure 13 est une vue analogue à la figure 12 et représente les mêmes constituants que cette figure 12 après un changement d'état de l'indicateur comprenant ces constituants,
  • la figure 14 est une vue de face du déclencheur de la figure 1 sans sa façade avant et montre quelles sont les positions respectives des deux organes de signalement après une commande de déclenchement générée par le déclencheur du fait d'une surcharge de courant dans une phase,
  • la figure 15 est un agrandissement d'une fenêtre extraite d'une vue en coupe selon un plan parallèle au plan III, avec perspective, et illustre un actionnement du cliquet de la figure 7 par la deuxième barre de transmission représentée à la figure 6, en cas de court-circuit,
  • la figure 16 est un agrandissement d'une fenêtre extraite d'une vue en perspective et illustre un actionnement de l'organe de signalement identique à celui de la figure 7, par la deuxième barre de transmission représentée à la figure 6, en cas de court-circuit,
  • la figure 17 est une vue de face du déclencheur de la figure 1 sans sa façade avant et montre quelles sont les positions respectives des deux organes de signalement après une commande de déclenchement générée par le déclencheur du fait d'un court-circuit.
Other advantages and features will emerge more clearly from the following description of a particular embodiment of the invention given by way of non-limiting example and shown in the accompanying drawings, among which:
  • the figure 1 is a perspective view of a magnetothermal release according to the invention and intended to be associated with a polyphase circuit breaker so as to be able to control the tripping,
  • the figure 2 is a front view representing the same trigger as the figure 1 , without its front façade,
  • the figure 3 is a perspective and sectional view according to plan III of the figure 2 , and represents the same trigger as the figure 1 , without its front façade,
  • the figure 4 is a perspective view, partly schematic, showing only certain internal constituents of the trigger of the figure 1 , in particular a first transmission bar, a second transmission bar and a pawl of an intermediate transmission device,
  • the figure 5 is a perspective view of the first visible transmission bar at the figure 4 ,
  • the figure 6 is a perspective view of the second visible transmission bar at the figure 4 ,
  • the figure 7 is a perspective view of the ratchet visible at the figure 4 ,
  • the figure 8 is a perspective and sectional view showing the same ratchet as the figure 7 , From another angle,
  • the figure 9 is a perspective view of one of two identical signaling organs that constitute the trigger of the figure 1 and serve in the visual indication of what kind of cause is causing a trigger triggered by this trigger,
  • the figure 10 is an enlargement of a window extracted from a sectional view along a plane parallel to the plane III, with perspective, and illustrates an actuation of the ratchet of the figure 7 by the first transmission bar shown in the figure 5 , in case of current overload,
  • the figure 11 is an enlargement of a window extracted from a perspective view and illustrates an actuation of the organ of reporting the figure 9 by the first transmission bar shown in the figure 5 , in case of current overload,
  • the figure 12 is a partial and simplified view, in section according to plan XII of the figure 1 , and represents the reporting body of the figure 9 , as well as other constituents of an indicator constitutive of the trigger of the figure 1 ,
  • the figure 13 is a view similar to the figure 12 and represents the same constituents as this figure 12 after a change of state of the indicator comprising these constituents,
  • the figure 14 is a front view of the trigger of the figure 1 without its front panel and shows what are the respective positions of the two signaling elements after a triggering command generated by the trigger due to a current overload in a phase,
  • the figure 15 is an enlargement of a window extracted from a sectional view along a plane parallel to the plane III, with perspective, and illustrates an actuation of the ratchet of the figure 7 by the second transmission bar shown in the figure 6 in case of a short circuit,
  • the figure 16 is an enlargement of a window extracted from a perspective view and illustrates an actuation of the signaling member identical to that of the figure 7 , by the second transmission bar shown in the figure 6 in case of a short circuit,
  • the figure 17 is a front view of the trigger of the figure 1 without its front panel and shows what are the respective positions of the two signaling bodies after a trigger command generated by the trigger due to a short circuit.

Description d'un mode préférentiel de l'inventionDescription of a preferred embodiment of the invention

Sur la figure 1, un déclencheur magnétothermique et polyphasé 1 conforme à l'invention est destiné à être associé à un disjoncteur polyphasé non représenté, tel que celui décrit dans la demande de brevet européen EP 0 542 636 . Une fois installé, le déclencheur 1 a pour fonction de surveiller les courants de phase circulant dans les phases du disjoncteur polyphasé et de déclencher ce disjoncteur en cas de surcharge de courant dans l'une des phases ou en cas de court-circuit affectant au moins l'une des phases.On the figure 1 , a magnetothermal trip and polyphase 1 according to the invention is intended to be associated with a polyphase circuit breaker not shown, such as that described in the European patent application EP 0 542 636 . Once installed, the purpose of trigger 1 is to monitor the phase currents flowing in the polyphase circuit breaker phases and to trip this circuit breaker in the event of a current overload in one of the phases or in the event of a short circuit affecting at least one of the phases. one of the phases.

Dans l'exemple représenté, le déclencheur 1 possède trois phases 2, dont chacune comprend un conducteur 3 destiné à être parcouru par l'un des courants de phase à surveiller. Le déclencheur 1 comporte une enveloppe isolante, qui comprend un boîtier d'assemblage 4 et une façade avant 5 fixés l'un à l'autre. Chaque conducteur 3 possède la forme d'une languette plusieurs fois coudée, dont chaque extrémité forme une borne de connexion électrique 6 dépassant à l'extérieur du boîtier d'assemblage 4.In the example shown, the trigger 1 has three phases 2, each of which comprises a conductor 3 intended to be traversed by one of the phase currents to be monitored. The trigger 1 comprises an insulating envelope, which comprises an assembly box 4 and a front panel 5 fixed to one another. Each conductor 3 has the shape of a tab several times bent, each end of which forms an electrical connection terminal 6 protruding outside the assembly box 4.

Un organe de réglage pivotant 7 est accessible par un trou ménagé dans la façade 5.A pivoting adjustment member 7 is accessible through a hole in the frontage 5.

Le déclencheur 1 comporte deux indicateurs 11 et 12 identiques, qui ont pour fonction d'indiquer ensemble quelle cause parmi une surcharge de courant et un court-circuit a été à l'origine d'une commande de déclenchement passée. Plus précisément, lorsqu'une commande de déclenchement passée a été générée par le disjoncteur 1 du fait d'une surcharge de courant traversant un conducteur 3, cela est signalé par l'indicateur 11. L'indicateur 12 sert à signaler chaque commande de déclenchement passée qui a été générée par le disjoncteur 1 du fait d'un court-circuit. Chacun des indicateurs 11 et 12 comporte un bouton poussoir 13 et une fenêtre 14 traversant la façade 5 de part en part.The trigger 1 comprises two identical indicators 11 and 12, whose function is to indicate together which cause among a current overload and a short circuit was at the origin of a past trip command. More specifically, when a past trip command has been generated by the circuit breaker 1 due to a current overload crossing a conductor 3, this is indicated by the indicator 11. The indicator 12 is used to signal each trip command past that was generated by the circuit breaker 1 due to a short circuit. Each of the indicators 11 and 12 comprises a push button 13 and a window 14 passing through the facade 5 from one side to the other.

Ainsi qu'on peut le voir à la figure 2, chacun des indicateurs 11 et 12 comprend en outre un organe de signalement 15, qui monté derrière une paroi avant de la façade 5 de manière à pouvoir pivoter autour d'un axe de pivotement X-X' sensiblement perpendiculaire à cette paroi avant. Chaque bouton poussoir 13 passe à travers la façade 5, au niveau d'un doigt de l'un des organes de signalement 15. Il peut exercer une poussée transversale sur ce doigt, après avoir lui-même été poussé manuellement depuis l'extérieur.As can be seen at figure 2 , each of the indicators 11 and 12 further comprises a signal member 15, which mounted behind a front wall of the front 5 so as to be pivotable about a pivot axis XX 'substantially perpendicular to the front wall. Each push button 13 passes through the front 5, at the level of a finger of one of the signaling members 15. It can exert a transverse thrust on the finger, after having itself been pushed manually from the outside.

Le déclencheur 1 comprend un mécanisme à accumulation d'énergie 20 connu en soi, dont un percuteur 21 est visible à la figure 3. Ce percuteur 21 est une pièce de déclenchement pouvant être basculée autour d'un axe de basculement Y1-Y'1, entre une position neutre et une position active vers laquelle le percuteur 1 est rappelé élastiquement par un ressort non visible sur les figures. A la figure 3, le mécanisme à accumulation d'énergie 20 est armé, dans la mesure où le percuteur 21 est retenu dans sa position neutre du fait de son accrochage à un cliquet 30 se trouvant lui-même dans une position d'accrochage. Un actionnement du cliquet 30 vers une position de libération conduit à un décrochage du percuteur 21, ce qui se traduit par une libération du rappel élastique s'exerçant sur ce percuteur 21 qui est alors entraîné selon un mouvement de déclenchement jusqu'à acquérir une inertie suffisante pour produire une percussion à même de déclencher le disjoncteur.The trigger 1 comprises an energy storage mechanism 20 known per se, a striker 21 is visible at the figure 3 . This striker 21 is a trigger piece that can be tilted about a tilting axis Y 1 -Y ' 1 , between a neutral position and an active position to which the striker 1 is resiliently biased by a spring not visible in the figures. To the figure 3 , the energy storage mechanism 20 is armed, insofar as the striker 21 is retained in its neutral position because of its attachment to a pawl 30 itself being in a latching position. An actuation of the pawl 30 towards a release position leads to a stall of the striker 21, which results in a release of the elastic return acting on the striker 21 which is then driven in a triggering motion to acquire inertia sufficient to produce a percussion capable of triggering the circuit breaker.

On se réfère maintenant à la figure 4. Le cliquet 30 fait partie d'un dispositif intermédiaire de transmission qui comprend deux autres pièces pivotantes, à savoir deux barres de transmission 31 et 32. Le cliquet 30 et les barres de transmission 31 et 32 sont montés sur un même arbre de support 33 commun, de manière à pouvoir tous pivoter autour d'un même axe de pivotement Y2-Y'2. Non représenté à la figure 4 dans un souci de clarté, mais visible à la figure 3, l'arbre de support 33 est assujetti au boîtier 4, par ses deux extrémités opposées. Les barres de transmission 31 et 32 sont découplées l'une de l'autre en pivotement autour de leur axe de pivotement Y2-Y'2 commun.We now refer to the figure 4 . The pawl 30 is part of an intermediate transmission device which comprises two other pivoting parts, namely two transmission rods 31 and 32. The pawl 30 and the transmission rods 31 and 32 are mounted on one and the same common support shaft 33. , so that they can all pivot around the same pivot axis Y 2 -Y ' 2 . Not represented at figure 4 for the sake of clarity but visible to the figure 3 , the support shaft 33 is secured to the housing 4 by its two opposite ends. The transmission bars 31 and 32 are decoupled from each other in pivoting about their common pivot axis Y 2 -Y ' 2 .

Un ressort de compression 34 forme un organe élastique de rappel du cliquet 30 vers sa position d'accrochage, autour de l'axe de pivotement Y2-Y'2, dans un sens S1. La référence S2 désigne le sens inverse au sens S1.A compression spring 34 forms an elastic return member of the pawl 30 towards its hooking position, about the pivot axis Y 2 -Y ' 2 , in a direction S 1 . The reference S 2 designates the opposite direction in the S 1 direction.

Un ressort de compression 35 forme un organe élastique de rappel de la barre de transmission 31 dans le sens S1, autour de l'axe de pivotement Y2-Y'2, vers une position de repos. Lorsque le cliquet 30 se trouve dans sa position d'accrochage et que la barre de transmission 31 se trouve dans sa position de repos, il existe une garde dont la barre de transmission 31 doit être pivotée dans le sens S2 avant de pouvoir entraîner avec elle le cliquet 30 dans le même sens S2.A compression spring 35 forms a resilient return member of the transmission bar 31 in the direction S 1 , about the pivot axis Y 2 -Y ' 2 , to a rest position. When the pawl 30 is in its attachment position and the transmission bar 31 is in its rest position, there is a guard whose transmission bar 31 must be pivoted in the direction S 2 before being able to drive with it ratchet 30 in the same direction S 2 .

Un ressort de torsion 36 forme un organe élastique de rappel de la barre de transmission 32 dans le sens S1, autour de l'axe de pivotement Y2-Y'2, vers une position de repos. Lorsque le cliquet 30 se trouve dans sa position d'accrochage et que la barre de transmission 32 se trouve dans sa position de repos, il existe une garde dont la barre de transmission 32 doit être pivotée dans le sens S2 avant de pouvoir entraîner avec elle le cliquet 30 dans le même sens S2.A torsion spring 36 forms a resilient return member of the transmission bar 32 in the direction S 1 , about the pivot axis Y 2 -Y ' 2 , to a rest position. When the pawl 30 is in its attachment position and the transmission bar 32 is in its rest position, there is a guard whose transmission bar 32 must be pivoted in the direction S 2 before being able to drive with it ratchet 30 in the same direction S 2 .

Dans un souci de clarté, les ressorts de rappel 34, 35 et 36 ne sont représentés qu'à la figure 4.For the sake of clarity, the return springs 34, 35 and 36 are only shown at the figure 4 .

Dans le déclencheur 1, un actionneur thermique 40 à bilame est prévu pour chaque phase. Connus en eux-mêmes, les actionneurs thermiques 40 sont représentés schématiquement à la figure 4. Chacun d'eux peut posséder la constitution et le fonctionnement décrits dans la demande de brevet européen EP 0 542 641 précitée. Chaque actionneur thermique 40 est configuré pour générer une commande mécanique de déclenchement, en réaction à une surcharge de courant dans la phase correspondante. Cette commande mécanique de déclenchement présente la forme d'une poussée qu'une tête 41 de l'actionneur thermique 40 exerce sur la barre de transmission 31 et qui agit à l'inverse du ressort 35, dans le sens S2 autour de l'axe Y2-Y'2. La flèche P1 symbolise un exemple d'une telle poussée exercée par un actionneur thermique 40.In the trigger 1, a bimetallic thermal actuator 40 is provided for each phase. Known in themselves, the thermal actuators 40 are shown schematically in the figure 4 . Each of them may possess the constitution and operation described in the patent application European EP 0 542 641 supra. Each thermal actuator 40 is configured to generate a mechanical triggering command in response to a current overload in the corresponding phase. This mechanical triggering control has the form of a thrust that a head 41 of the thermal actuator 40 exerts on the transmission bar 31 and which acts in the opposite direction of the spring 35, in the direction S 2 around the Y-axis 2 -Y ' 2 . The arrow P 1 symbolizes an example of such a thrust exerted by a thermal actuator 40.

Dans le déclencheur 1, un actionneur magnétique 42 est prévu pour chaque phase. Connus en eux-mêmes, les actionneurs magnétiques 42 sont représentés schématiquement à la figure 4. Chacun d'eux peut posséder la constitution et le fonctionnement décrits dans la demande de brevet européen EP 0 848 404 précitée. Chaque actionneur magnétique 42 est configuré pour générer une commande mécanique de déclenchement, en réaction à un court-circuit concernant la phase correspondante. Cette commande mécanique de déclenchement présente la forme d'une poussée qu'un volet mobile 43 de l'actionneur magnétique 42 exerce sur la barre de transmission 32 et qui agit à l'inverse du ressort 36, dans le sens S2 autour de l'axe Y2-Y'2. La flèche P2 symbolise un exemple d'une telle poussée exercée par un actionneur magnétique 42.In the trigger 1, a magnetic actuator 42 is provided for each phase. Known in themselves, the magnetic actuators 42 are shown schematically in the figure 4 . Each of them may possess the constitution and operation described in the European patent application EP 0 848 404 supra. Each magnetic actuator 42 is configured to generate a mechanical triggering command in response to a short circuit relating to the corresponding phase. This mechanical triggering control has the form of a thrust that a movable flap 43 of the magnetic actuator 42 exerts on the transmission bar 32 and which acts in the opposite direction of the spring 36, in the direction S 2 around the Y axis 2 -Y ' 2 . The arrow P 2 symbolizes an example of such a thrust exerted by a magnetic actuator 42.

La barre de transmission 31 est représentée seule à la figure 5. Elle comporte trois paliers de montage 50, qui sont enfilés sur l'arbre de support 33, décalés entre eux le long de l'axe de pivotement Y2-Y'2 et reliés rigidement par une barrette de liaison axiale 51. La barre de transmission 31 comprend également autant de bras 52 de réception d'une poussée P1 qu'il y a d'actionneurs thermiques 40. Chaque palier de montage 50 porte l'un des bras 52, dont chacun comprend un poussoir rapporté 53 distant de l'axe de pivotement Y2-Y'2.The transmission bar 31 is shown alone at the figure 5 . It comprises three mounting bearings 50, which are threaded onto the support shaft 33, offset between them along the pivot axis Y 2 -Y ' 2 and rigidly connected by an axial connecting bar 51. transmission 31 also comprises as many arms 52 for receiving a thrust P 1 as there are thermal actuators 40. Each mounting bearing 50 carries one of the arms 52, each of which comprises an attached pusher 53 remote from the pivot axis Y 2 -Y ' 2 .

Les bras 52 sont décalés entre eux, le long de l'axe de pivotement Y2-Y'2, de manière que chaque tête 41 puisse exercer une commande mécanique de déclenchement sous la forme d'une poussée P1, sur un poussoir 53, afin de faire pivoter la barre de transmission 31 dans le sens S2, en réaction à une surcharge de courant.The arms 52 are offset from one another along the pivot axis Y 2 -Y ' 2 , so that each head 41 can exert a mechanical triggering control in the form of a thrust P 1 , on a pusher 53 in order to rotate the transmission rod 31 in the direction S 2 in response to a current overload.

L'un des bras 52 porte un doigt 54 d'actionnement de l'organe de signalement 15 de l'indicateur 11.One of the arms 52 carries a finger 54 for actuating the signaling member 15 of the indicator 11.

La barrette de transmission 51 comporte un épaulement 55 de poussée sur le cliquet 30 pour entraîner celui-ci jusque dans sa position de libération, comme cela sera précisé ultérieurement.The transmission bar 51 has a shoulder 55 for pushing on the pawl 30 to drive it into its release position, as will be specified later.

La barre de transmission 31 peut être coulissée le long de l'arbre de support 33. Sa position axiale peut être réglée au moyen de l'organe de réglage 7. A cet effet, la barre de transmission 31 comporte une fourchette 56 d'accouplement à cet organe de réglage 7.The transmission rod 31 can be slid along the support shaft 33. Its axial position can be adjusted by means of the adjustment member 7. For this purpose, the transmission bar 31 comprises a coupling fork 56 to this adjustment member 7.

Les paliers 50, la barrette 51, les bras 52, le doigt 54 et la fourchette 56 font partie d'une pièce d'un seul tenant, moulée en polymère, à laquelle sont fixés les poussoirs 53.The bearings 50, the bar 51, the arms 52, the finger 54 and the fork 56 are part of an integral piece, molded in polymer, to which the pushers 53 are fixed.

La barre de transmission 32 est représentée seule à la figure 6. Elle comporte trois paliers de montage 60, qui sont enfilés sur l'arbre de support 33, décalés entre eux le long de l'axe de pivotement Y2-Y'2 et reliés rigidement par une barrette de liaison axiale 61. La barre de transmission 32 comprend également autant de bras 62 de réception d'une poussée P2 qu'il y a d'actionneurs magnétiques 42. Porté par l'un des moyeux 60, chaque bras 62 comprend un poussoir 63 distant de l'axe de pivotement Y2-Y'2.The transmission bar 32 is shown alone at the figure 6 . It comprises three mounting bearings 60, which are threaded onto the support shaft 33, offset between them along the pivot axis Y 2 -Y ' 2 and rigidly connected by an axial connecting bar 61. The bar of FIG. transmission 32 also comprises as many arms 62 for receiving a thrust P 2 as there are magnetic actuators 42. Carried by one of the hubs 60, each arm 62 comprises a pusher 63 remote from the pivot axis Y 2 -Y ' 2 .

Les bras 62 sont décalés entre eux, le long de l'axe de pivotement Y2-Y'2, de manière que chaque volet 43 puisse exercer une commande mécanique de déclenchement sous la forme d'une poussée P2, sur un poussoir 63, afin de faire pivoter la barre de transmission 32 dans le sens S2, en réaction à un court-circuit.The arms 62 are offset from each other along the pivot axis Y 2 -Y ' 2 , so that each flap 43 can exert a mechanical triggering control in the form of a thrust P 2 , on a pusher 63 , in order to rotate the transmission bar 32 in the direction S 2 , in response to a short circuit.

Un palier 60 porte un bras 64 d'actionnement de l'organe de signalement 15 de l'indicateur 12.A bearing 60 carries an arm 64 for actuating the signaling member 15 of the indicator 12.

Chacun de deux paliers 60 successifs porte un ergot d'accrochage 65, qui définit l'une de deux surfaces planes 66 de poussée sur le cliquet 30 de manière à entraîner celui-ci jusque dans sa position de libération, comme cela sera précisé ultérieurement.Each of two successive bearings 60 carries a hooking lug 65, which defines one of two flat surfaces 66 of thrust on the pawl 30 so as to drive it into its release position, as will be specified later.

La barre de transmission 32 est une pièce d'un seul tenant, moulée en polymère.The transmission bar 32 is a single piece, molded of polymer.

Le cliquet 30 est représenté seul aux figures 7 et 8. Il comporte un moyeu de montage 70, qui est enfilé sur l'arbre de support 33 et qui porte un doigt 71 de retenue du percuteur 21 par accrochage. A distance du moyeu 70, l'extrémité libre du doigt 71 est pourvue d'un bec 72 d'accrochage du percuteur 21.The pawl 30 is shown alone to figures 7 and 8 . It comprises a mounting hub 70, which is threaded onto the support shaft 33 and which carries a finger 71 for retaining the striker 21 by hooking. At a distance from the hub 70, the free end of the finger 71 is provided with a catch 72 for attaching the striker 21.

Le cliquet 30 définit une surface 73 s'étendant vers l'extérieur à partir du moyeu 70, de manière sensiblement parallèle à l'axe Y2-Y'2. Cette surface 73 est configurée pour coopérer avec l'épaulement 55 et pour recevoir une poussée de ce dernier. Le cliquet 30 définit en outre deux surfaces 74 s'étendant vers l'extérieur à partir du moyeu 70, de manière sensiblement parallèle à l'axe Y2-Y'2. Ces surfaces 74 sont configurées pour coopérer avec les surfaces de poussée 66 et pour recevoir en même temps des poussées de ces dernières.The pawl 30 defines a surface 73 extending outwardly from the hub 70, substantially parallel to the Y 2 -Y ' 2 axis. This surface 73 is configured to cooperate with the shoulder 55 and to receive a thrust of the latter. The pawl 30 further defines two surfaces 74 extending outwardly from the hub 70, substantially parallel to the Y 2 -Y ' 2 axis. These surfaces 74 are configured to cooperate with the thrust surfaces 66 and to simultaneously receive thrusts thereof.

Un organe de signalement 15 est représenté seul à la figure 9. Il comporte un bras de manivelle 80, qui est percé d'un trou de montage d'un arbre de support non représenté, centré sur l'axe de pivotement X-X'. Le bras de manivelle 80 porte un maneton arrière 81 déporté par rapport à l'axe de pivotement X-X', un doigt flexible 82 sensiblement perpendiculaire à cet axe de pivotement X-X', ainsi qu'un arc flexible 83 de rappel de l'organe de signalement 15 vers un état masqué. Le doigt 82 est flexible élastiquement vers l'arrière, dans un plan parallèle à l'axe de pivotement X-X'. Son extrémité libre porte une saillie 84 à même de s'engager dans une fenêtre 14 et de verrouiller ainsi l'organe de signalement 15 dans un état visible indiquant qu'un déclenchement s'est produit.A signaling member 15 is shown alone at the figure 9 . It comprises a crank arm 80, which is pierced with a mounting hole of a not shown support shaft, centered on the pivot axis X-X '. The crank arm 80 carries a rear crank pin 81 offset relative to the pivot axis X-X ', a flexible finger 82 substantially perpendicular to this pivot axis X-X', and a flexible arc 83 for returning the crank. the signaling member 15 to a masked state. The finger 82 is elastically flexible rearwardly, in a plane parallel to the pivot axis X-X '. Its free end carries a projection 84 able to engage in a window 14 and thus lock the signal member 15 in a visible state indicating that a trip has occurred.

Lorsqu'une surcharge de courant circule dans le conducteur 3 de l'une des phases 2, l'actionneur thermique 40 associé à cette phase 3 produit un déplacement se traduisant par une poussée P1, faisant pivoter la barre de transmission 31 dans le sens S2. Il s'ensuit que l'épaulement 55 s'accroche à la surface 73 puis pousse sur celle-ci dans le sens S2 et fait ainsi pivoter le cliquet 30 jusqu'à sa position de libération, ce qu'illustre la figure 10. Sur cette figure 10, le percuteur 21 s'est décroché du bec 72 et il va se mettre en mouvement puis s'accélérer jusqu'à effectuer une percussion provoquant le déclenchement du disjoncteur.When a current overload flows in the conductor 3 of one of the phases 2, the thermal actuator 40 associated with this phase 3 produces a displacement resulting in a thrust P 1 , rotating the transmission rod 31 in the direction S 2 . It follows that the shoulder 55 clings to the surface 73 and then pushes on it in the direction S 2 and thus pivots the pawl 30 to its release position, which is illustrated by the figure 10 . On this figure 10 the striker 21 has unhooked the spout 72 and it will move and accelerate until a percussion causing the tripping of the circuit breaker.

Comme l'illustre la figure 11, le pivotement de la barre de transmission 31 dans le sens S2 amène le doigt 54 à pousser sur le maneton 81 présent dans l'indicateur 11 et à ainsi actionner l'organe de signalement 15 de cet indicateur 11. Antérieurement à l'apparition d'une surcharge de courant, cet organe de signalement 15 se trouvait dans son état masqué, qui est celui représenté à la figure 12. Sur cette figure 12, l'organe de signalement 15 de l'indicateur 11 est maintenu dans la même position angulaire qu'à la figure 2, du fait du rappel élastique exercé par son arc flexible 83. Il est alors entièrement masqué par la façade 5. En outre, le doigt 82 de l'indicateur 11 est courbé de manière élastique vers l'arrière.As illustrated by figure 11 , the pivoting of the transmission rod 31 in the direction S 2 causes the finger 54 to push on the pin 81 present in the indicator 11 and thus actuate the signaling member 15 of the indicator 11. Prior to the appearance of a current overload, this signaling member 15 was in its masked state, which is the one shown in FIG. figure 12 . On this figure 12 the signaling member 15 of the indicator 11 is held in the same angular position as at the figure 2 due to the elastic return exerted by its flexible bow 83. It is then completely masked by the facade 5. In addition, the finger 82 of the indicator 11 is curved resiliently towards the rear.

Lors du pivotement de la barre de transmission 31 dans le sens S2, le doigt 54 fait pivoter l'organe de signalement 15 de l'indicateur 11, autour de l'axe de pivotement X-X' correspondant, à l'encontre du rappel exercé par l'arc 83 de cet organe de signalement 15. Après son actionnement par le doigt 54, l'organe de signalement 15 de l'indicateur 11 a changé d'état et il se trouve dans son état visible, qui est celui représenté aux figures 13 et 14. Sur la figure 13, le doigt 82 de l'indicateur 11 s'est redressé de lui-même et il est désormais rectiligne. Sa saillie 84 s'est engagée dans la fenêtre 14 de l'indicateur 11, ce qui verrouille l'organe de signalement 15 de l'indicateur 11 dans son état visible. La présence visible de la saillie 84 de l'indicateur 11 dans la fenêtre 14 de cet indicateur 11 indique qu'un déclenchement consécutif à une surcharge de courant s'est produit.When pivoting of the transmission bar 31 in the direction S 2 , the finger 54 rotates the signal member 15 of the indicator 11, about the pivot axis XX 'corresponding, against the bias exerted by the arc 83 of this signaling member 15. After its actuation by the finger 54, the signaling member 15 of the indicator 11 has changed state and it is in its visible state, which is the one shown in FIGS. Figures 13 and 14 . On the figure 13 , the finger 82 of the indicator 11 has recovered itself and is now rectilinear. Its projection 84 is engaged in the window 14 of the indicator 11, which locks the signal member 15 of the indicator 11 in its visible state. The visible presence of the projection 84 of the indicator 11 in the window 14 of this indicator 11 indicates that a trip following a current overload has occurred.

Une fois que la cause de la surcharge de courant a été éliminée, une poussée manuelle sur le bouton poussoir 13 de l'indicateur 11 amène ce bouton poussoir à courber élastiquement le doigt 82 vers l'arrière et à faire sortir la saillie 84 hors de la fenêtre 14, dans cet indicateur 11. Lorsque cette saillie 84 est sortie de la fenêtre 14 correspondante, l'arc 83 de l'organe de signalement 15 de l'indicateur 11 replace cet organe de signalement 15 dans son état masqué des figures 2 et 12.Once the cause of the current overload has been eliminated, a manual push on the pushbutton 13 of the indicator 11 causes this pushbutton to elastically bend the finger 82 backwards and to push the protrusion 84 out of position. the window 14, in this indicator 11. When this projection 84 is output from the corresponding window 14, the arc 83 of the signaling member 15 of the indicator 11 replaces this signaling member 15 in its masked state. figures 2 and 12 .

Lorsqu'un courant de court-circuit circule dans le conducteur 3 de l'une des phases 2, l'actionneur magnétique 42 associé à cette phase 3 produit un déplacement se traduisant par une poussée P2, qu'un volet 43 applique sur un poussoir 62. Cette poussée P2 fait pivoter la barre de transmission 32 dans le sens S2. Il s'ensuit que les ergots 65 s'appliquent sur les surfaces 74, puis poussent de concert sur celles-ci dans le sens S2 et font ainsi pivoter le cliquet 30 jusqu'à sa position de libération, ce qu'illustre la figure 15. Sur cette figure 15, le percuteur 21 s'est décroché du bec 72 et il va se mettre en mouvement puis s'accélérer jusqu'à effectuer une percussion provoquant le déclenchement du disjoncteur.When a short-circuit current flows in the conductor 3 of one of the phases 2, the magnetic actuator 42 associated with this phase 3 produces a displacement resulting in a thrust P 2 , which a flap 43 applies to a push 62. This thrust P 2 rotates the transmission bar 32 in the direction S 2 . It follows that the lugs 65 are applied to the surfaces 74 and grow together on them in the direction S 2 and are thus pivot the pawl 30 to its release position, as illustrated by the figure 15 . Sure this figure 15 the striker 21 has unhooked the spout 72 and it will move and accelerate until a percussion causing the tripping of the circuit breaker.

Comme l'illustre la figure 16, le pivotement de la barre de transmission 32 dans le sens S2 amène le bras 64 à pousser sur le maneton 81 de l'organe de signalement 15, dans l'indicateur 12, et à ainsi actionner cet organe de signalement 15. Antérieurement à l'apparition d'un court-circuit, l'organe de signalement 15 de l'indicateur 12 se trouvait dans son état masqué, qui est celui représenté à la figure 2. Après son pivotement par le doigt 64, cet organe de signalement 15 a changé d'état et il se trouve dans son état visible, qui est celui de la figure 17 et qui est analogue à l'état représenté à la figure 13. La présence visible de la saillie 84 de l'indicateur 12 dans la fenêtre 14 du même l'indicateur 12 indique qu'un déclenchement consécutif à un court-circuit s'est produit.As illustrated by figure 16 , the pivoting of the transmission bar 32 in the direction S 2 causes the arm 64 to push on the crank pin 81 of the signaling member 15, in the indicator 12, and thus actuate this signaling member 15. Previously the occurrence of a short circuit, the signaling member 15 of the indicator 12 was in its masked state, which is the one shown in FIG. figure 2 . After its pivoting by the finger 64, this signaling member 15 has changed state and it is in its visible state, which is that of the figure 17 and which is analogous to the state represented in figure 13 . The visible presence of the projection 84 of the indicator 12 in the window 14 of the same indicator 12 indicates that a trip following a short circuit has occurred.

Une fois que la cause du court-circuit a été éliminée, une poussée manuelle sur le bouton poussoir 13 de l'indicateur 12 amène l'organe de signalement 15 correspondant à se replacer dans son état masqué de la figure 2.Once the cause of the short circuit has been eliminated, a manual push on the push button 13 of the indicator 12 causes the corresponding signaling member 15 to return to its masked state of the figure 2 .

L'invention ne se limite pas au mode de réalisation décrit précédemment. En particulier, la barre de transmission 32 est configurée pour faire partie d'un déclencheur magnétothermique de gros calibre. Des modifications peuvent être apportées à cette barre pour l'adapter à un déclencheur magnétothermique de petit calibre. Ces modifications peuvent porter en particulier sur la conformation des bras 62 et sur leur position angulaire autour de l'axe Y2-Y'2.The invention is not limited to the embodiment described above. In particular, the transmission bar 32 is configured to be part of a large-caliper magnetothermal trip unit. Modifications can be made to this bar to adapt it to a small magnetothermal release. These modifications may relate in particular to the conformation of the arms 62 and their angular position around the axis Y 2 -Y ' 2 .

Claims (8)

Déclencheur magnétothermique de surveillance de plusieurs courants de phase traversant un disjoncteur polyphasé et de déclenchement de ce disjoncteur polyphasé en cas d'anomalie affectant au moins l'un des courants de phase, comportant : - plusieurs phases (2), - plusieurs actionneurs thermiques (40) dont chacun est prévu pour réagir à une surcharge de courant dans une des phases (2) en générant une commande mécanique de déclenchement (P1, P2), - plusieurs actionneurs magnétiques (42) dont chacun est prévu pour réagir à un court-circuit dans une des phases (2) en générant une commande mécanique de déclenchement (P1, P2), - un dispositif intermédiaire de transmission configuré pour pouvoir recevoir n'importe laquelle des commandes mécaniques de déclenchement (P1, P2) et comportant un cliquet (30) rappelé élastiquement dans un premier sens (S1), vers une position de verrouillage, et agencé de manière qu'une réception d'une commande de déclenchement (P1, P2) par le dispositif de transmission amène ce cliquet (30) à passer de sa position de verrouillage, dans laquelle le cliquet (30) peut retenir par accrochage une pièce de déclenchement (21) dans un état neutre, à une position de libération, dans laquelle la pièce de déclenchement (21) est décrochée du cliquet (30), - un arbre de support (33) sur lequel le cliquet (30) est monté de manière à pouvoir pivoter autour d'un axe de pivotement (Y2-Y'2), entre ses positions de verrouillage et de libération, caractérisé en ce qu'il comporte : - un premier indicateur (11) prévu pour signaler un déclenchement provoqué par une surcharge de courant, et - un deuxième indicateur (12) prévu pour signaler un déclenchement provoqué par un court-circuit, le dispositif intermédiaire de transmission comportant : - une première barre de transmission (31) montée sur ledit arbre de support (33) de manière à pouvoir être pivotée autour du même axe de pivotement (Y2-Y'2) que le cliquet (30), dans un deuxième sens (S2) contraire au premier sens (S1), par n'importe lequel des actionneurs thermiques (40), selon un mouvement lors duquel cette première barre de transmission (31) à la fois entraîne le cliquet (30) de sa position de verrouillage à sa position de libération et fait changer d'état le premier indicateur (11), et - une deuxième barre de transmission (32) montée sur ledit arbre de support (33) de manière à pouvoir être pivotée autour du même axe de pivotement (Y2-Y'2) que le cliquet (30), dans ledit deuxième sens (S2), par n'importe lequel des actionneurs magnétiques (42), selon un mouvement lors duquel cette deuxième barre de transmission (32) à la fois entraîne le cliquet (30) de sa position de verrouillage à sa position de libération et fait changer d'état le deuxième indicateur (12), les premières et deuxièmes barres de transmission (31, 32) étant découplées l'une de l'autre en pivotement autour de l'axe de pivotement (Y2-Y'2).Magnetothermic tripping device for monitoring a plurality of phase currents flowing through a polyphase circuit breaker and for tripping this polyphase circuit breaker in the event of an anomaly affecting at least one of the phase currents, comprising: - several phases (2), a plurality of thermal actuators (40), each of which is designed to react to a current overload in one of the phases (2) by generating a mechanical triggering command (P 1 , P 2 ), a plurality of magnetic actuators (42) each of which is provided to react to a short-circuit in one of the phases (2) by generating a mechanical triggering command (P 1 , P 2 ), an intermediate transmission device configured to be able to receive any of the mechanical triggering commands (P 1 , P 2 ) and comprising a pawl (30) resiliently biased in a first direction (S 1 ) towards a locking position, and arranged so that a reception of a trigger command (P 1 , P 2 ) by the transmission device causes said pawl (30) to pass from its locking position, in which the pawl (30) can hold by hooking a release member (21) in a neutral state, at a release position, in which the trigger piece (21) is detached from the pawl (30), - a support shaft (33) on which the pawl (30) is pivotably mounted about a pivot axis (Y 2 -Y ' 2 ) between its locking and releasing positions, characterized in that it comprises: a first indicator (11) intended to signal a tripping caused by a current overload, and a second indicator (12) intended to signal a trigger caused by a short circuit, the intermediate transmission device comprising: a first transmission bar (31) mounted on said support shaft (33) so as to be pivotable about the same pivot axis (Y 2 -Y ' 2 ) as the pawl (30), in a second direction ( S 2 ) contrary to the first direction (S 1 ), by any of the thermal actuators (40), according to a movement in which this first transmission bar (31) at the same time drives the pawl (30) from its position of locking at its release position and change state the first indicator (11), and a second transmission bar (32) mounted on said support shaft (33) so as to be pivotable about the same pivot axis (Y 2 -Y ' 2 ) as the pawl (30), in said second direction ( S 2 ), by any of the magnetic actuators (42), in a motion in which this second transmission bar (32) both drives the pawl (30) from its locking position to its release position and causes change state the second indicator (12), the first and second transmission bars (31, 32) being decoupled from each other in pivoting about the pivot axis (Y 2 -Y ' 2 ). Déclencheur magnétothermique selon la revendication 1, caractérisé en ce qu'il comporte : - un premier organe élastique (35) rappelant la première barre de transmission (31) vers une position de repos, dans le premier sens (S1) autour de l'axe de pivotement (Y2-Y'2), - un deuxième organe élastique (36) rappelant la deuxième barre de transmission (32) vers une position de repos, dans le premier sens (S1) autour de l'axe de pivotement (Y2-Y'2), - un troisième organe élastique (34) rappelant le cliquet (30) à l'écart de sa position de libération et vers sa position de verrouillage, dans le premier sens (S1) autour de l'axe de pivotement (Y2-Y'2). Magnetothermic trip device according to Claim 1, characterized in that it comprises: a first elastic member (35) returning the first transmission bar (31) to a rest position, in the first direction (S 1 ) around the pivot axis (Y 2 -Y ' 2 ), a second elastic member (36) reminding the second transmission bar (32) towards a rest position, in the first direction (S 1 ) about the pivot axis (Y 2 -Y ' 2 ), a third elastic member (34) reminding the pawl (30) away from its release position and towards its locking position, in the first direction (S 1 ) around the pivot axis (Y 2 -Y ' 2 ). Déclencheur magnétothermique selon l'une quelconque des revendications précédentes, caractérisé en ce que la première barre de transmission (31) comporte plusieurs premiers paliers (50) enfilés sur l'arbre de support (33), ainsi qu'au moins une première barrette de liaison (51) associant rigidement les premiers paliers (50) entre eux, la deuxième barre de transmission (32) comportant plusieurs deuxièmes paliers (60) enfilés sur l'arbre de support (33), ainsi qu'au moins une deuxième barrette de liaison (61) associant rigidement les deuxièmes paliers (60) entre eux, les premiers et deuxièmes paliers (50, 60) étant décalés entre eux le long dudit axe de pivotement (Y2-Y'2).Magnetothermic trip device according to one of the preceding claims, characterized in that the first transmission bar (31) has a plurality of first bearings (50) threaded onto the support shaft (33) and at least a first support bar link (51) rigidly associating the first bearings (50) with each other, the second transmission bar (32) having a plurality of second bearings (60) threaded onto the support shaft (33), and at least one second bar of link (61) rigidly connecting the second bearings (60) to each other, the first and second bearings (50, 60) being offset from one another along said pivot axis (Y 2 -Y ' 2 ). Déclencheur magnétothermique selon l'une quelconque des revendications précédentes, caractérisé en ce que la première barre de transmission (31) comporte des premiers bras (52) agencés de manière que, en agissant sur l'un de ces bras (52), chaque actionneur thermique (40) peut faire pivoter la première barre de transmission (31) dans le deuxième sens (S2).Magnetothermic trip device according to one of the preceding claims, characterized in that the first transmission bar (31) has first arms (52) arranged so that, acting on one of these arms (52), each actuator thermal device (40) can rotate the first transmission bar (31) in the second direction (S 2 ). Déclencheur magnétothermique selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième barre de transmission (32) comporte des deuxième bras (62) agencés de manière que, en agissant sur l'un de ces bras (62), chaque actionneur magnétique (42) peut faire pivoter la deuxième barre de transmission (32) dans le deuxième sens (S2).Magnetothermic trip device according to one of the preceding claims, characterized in that the second transmission bar (32) comprises second arms (62) arranged in such a way that, acting on one of these arms (62), each actuator magnet (42) can rotate the second transmission bar (32) in the second direction (S 2 ). Déclencheur magnétothermique selon la revendication 3 et l'une quelconque des revendications 4 et 5, caractérisé en ce que chacun des bras (52, 62) est porté par l'un des premiers et deuxièmes paliers (50, 60).Magnetothermic trip device according to claim 3 and any one of claims 4 and 5, characterized in that each of the arms (52, 62) is carried by one of the first and second bearings (50, 60). Déclencheur magnétothermique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'un au moins des premier et deuxième indicateurs (11, 12) comporte : - une fenêtre (14) ménagée à travers une enveloppe (4, 5) du déclencheur magnétothermique, et - un organe de signalement (15) déplaçable entre un premier état, dans lequel aucune portion de cet organe de signalement (15) ne se trouve au niveau de la fenêtre (14), et un deuxième état, dans lequel l'organe de signalement (15) est au moins partiellement visible de l'extérieur, par la fenêtre (14). Magnetothermic trip device according to one of the preceding claims, characterized in that at least one of the first and second indicators (11, 12) comprises: a window (14) formed through an envelope (4, 5) of the magnetothermal release, and a signaling element (15) movable between a first state, in which no portion of this signaling element (15) is located at the level of the window (14), and a second state, in which the signaling element (15) is at least partially visible from the outside through the window (14). Déclencheur magnétothermique selon la revendication 7, caractérisé en ce que l'organe de signalement (15) est rappelé élastiquement vers le premier état et comporte un doigt flexible élastiquement (82) qui porte une saillie (84) à même de verrouiller l'organe de signalement (15) dans son deuxième état, en s'engageant dans la fenêtre (14).Magnetothermic trip device according to Claim 7, characterized in that the signaling element (15) is elastically biased towards the first state and comprises an elastically flexible pin (82) which carries a projection (84) capable of locking the signal (15) in its second state, engaging in the window (14).
EP13354040.1A 2012-11-19 2013-10-25 Thermal-magnetic tripping device for tripping a polyphase circuit breaker Active EP2733720B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203098A FR2998415B1 (en) 2012-11-19 2012-11-19 MAGNETOTHERMIC TRIGGER TRIPPING OF A POLYPHASE CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP2733720A1 true EP2733720A1 (en) 2014-05-21
EP2733720B1 EP2733720B1 (en) 2015-07-29

Family

ID=47739343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13354040.1A Active EP2733720B1 (en) 2012-11-19 2013-10-25 Thermal-magnetic tripping device for tripping a polyphase circuit breaker

Country Status (5)

Country Link
US (1) US9024711B2 (en)
EP (1) EP2733720B1 (en)
CN (1) CN103824735B (en)
ES (1) ES2547344T3 (en)
FR (1) FR2998415B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104637739B (en) * 2015-01-27 2016-08-24 浙江天正电气股份有限公司 A kind of release apparatus with overload and short-circuit protection indicating fault
CN205789807U (en) 2016-06-27 2016-12-07 施耐德电器工业公司 A kind of hot dropout collocation structure
KR101869724B1 (en) * 2017-01-05 2018-06-21 엘에스산전 주식회사 Magnetic trip device for circuit breaker
KR102299858B1 (en) * 2017-03-15 2021-09-08 엘에스일렉트릭 (주) Magnetic trip mechanism for circuit breaker
US10468219B2 (en) * 2017-09-07 2019-11-05 Carling Technologies, Inc. Circuit interrupter with status indication
FR3076065B1 (en) * 2017-12-21 2020-11-20 Schneider Electric Ind Sas TRIGGER FOR AN ELECTRICAL SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE INCLUDING SUCH A TRIP TRIGGER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542641A1 (en) 1991-11-13 1993-05-19 Schneider Electric Sa Process and device for adjusting a thermal bimetal tripping device
EP0542636A1 (en) 1991-10-15 1993-05-19 Schneider Electric Sa Multipole circuit-breaker being composed of single-pole units
EP0848404A1 (en) 1996-12-13 1998-06-17 Schneider Electric Sa Selective tripping block for multipole circuit breaker
EP0954002A2 (en) 1998-04-29 1999-11-03 AEG Niederspannungstechnik GmbH & Co. KG Thermal magnetic circuit breakers
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
DE102008008032A1 (en) * 2008-02-06 2009-08-13 Siemens Aktiengesellschaft Release device for releasing electrical switch, has elements that are arranged such that one of elements causes release movement of other element during execution of release movement, where latter element is moved along with former element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258560A (en) * 1964-04-14 1966-06-28 Gen Electric Electric circuit breaker with novel tripping assembly
US5121092A (en) * 1991-02-04 1992-06-09 General Electric Company Molded case circuit breaker thermal-magnetic trip accelerator
US6137386A (en) * 1999-08-18 2000-10-24 Eaton Corporation Circuit breaker with trip unit mounted tripping plunger and latch therefore
HU226013B1 (en) * 2001-03-29 2008-02-28 Ge Power Controls Polska Sp Z Circuit breaker thermal magnetic trip unit
US7323956B1 (en) * 2005-07-29 2008-01-29 Eaton Corporation Electrical switching apparatus and trip unit including one or more fuses
CN201608125U (en) * 2010-01-12 2010-10-13 上海良信电器股份有限公司 Mechanism for displaying thermomagnetic trip type in circuit breaker
CN102347171B (en) * 2010-07-30 2014-03-26 上海良信电器股份有限公司 Device for distinguishing and indicating fault of thermomagnetic tripping device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542636A1 (en) 1991-10-15 1993-05-19 Schneider Electric Sa Multipole circuit-breaker being composed of single-pole units
EP0542641A1 (en) 1991-11-13 1993-05-19 Schneider Electric Sa Process and device for adjusting a thermal bimetal tripping device
EP0848404A1 (en) 1996-12-13 1998-06-17 Schneider Electric Sa Selective tripping block for multipole circuit breaker
EP0954002A2 (en) 1998-04-29 1999-11-03 AEG Niederspannungstechnik GmbH & Co. KG Thermal magnetic circuit breakers
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
DE102008008032A1 (en) * 2008-02-06 2009-08-13 Siemens Aktiengesellschaft Release device for releasing electrical switch, has elements that are arranged such that one of elements causes release movement of other element during execution of release movement, where latter element is moved along with former element

Also Published As

Publication number Publication date
CN103824735A (en) 2014-05-28
US9024711B2 (en) 2015-05-05
CN103824735B (en) 2017-08-15
ES2547344T3 (en) 2015-10-05
US20140139302A1 (en) 2014-05-22
FR2998415A1 (en) 2014-05-23
EP2733720B1 (en) 2015-07-29
FR2998415B1 (en) 2015-01-16

Similar Documents

Publication Publication Date Title
EP2733720B1 (en) Thermal-magnetic tripping device for tripping a polyphase circuit breaker
EP1975971B1 (en) Device for controlling an electric protection device and electric protection device including same
EP2975628B1 (en) Signaling device fault in an electric power protection apparatus and apparatus having such a device
EP2061058B1 (en) Device for controlling electrical switchgear and electrical switchgear including same
EP1542253B1 (en) Signalling device indicating the triggering of an electrical protection device
FR2900498A1 (en) CIRCUIT BREAKER
EP1965405B1 (en) Offset activation device for a circuit breaker including a trigger assistance device
FR2795860A1 (en) AUXILIARY SIGNALING MODULE FOR AN ELECTRICAL DEVICE WITH TRIGGER
EP1274109B1 (en) Circuit breaker and it's opperating mechanism
FR3051593B1 (en) DEVICE FOR SIGNALING AN ELECTRICAL FAULT IN AN ELECTRICAL PROTECTION APPARATUS, AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE
EP0193440B1 (en) Protective switch
FR2840449A1 (en) AUTOMATIC RESETTING DEVICE FOR MODULAR PROTECTION DEVICE TO BE CONTROLLED
EP0461027B1 (en) Differential release device
EP2743958B1 (en) Electric current breaking apparatus, in particular a coupling breaker
EP1515352B1 (en) Device to interrupt electrical current with with a translatory movable contact
EP2642502B1 (en) Trip unit for an electric protection apparatus and electric protection apparatus comprising one such unit
WO2005027169A1 (en) Electric current shut-off device having complete discrimination of states
EP3629351B1 (en) Actuating system for electrical switching appliance
EP2345055B1 (en) Fuse board
EP3091557B1 (en) Device for controlling an electrical protection unit and electrical protection unit comprising same
BE734315A (en)
EP3035361A1 (en) Thermal trip device for a low-voltage circuit breaker and circuit breaker comprising such a device
LU83136A1 (en) IMPROVEMENTS ON A MANUALLY CLOSED SAFETY CIRCUIT BREAKER AND MAGNETIC AND THERMAL UNLOCKING UNITS
BE416616A (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20131025

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20141027

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 71/04 20060101AFI20150203BHEP

Ipc: H01H 71/40 20060101ALN20150203BHEP

INTG Intention to grant announced

Effective date: 20150302

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 739873

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013002461

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2547344

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20151005

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 739873

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150729

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20150729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151030

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151130

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151129

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013002461

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151025

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

26N No opposition filed

Effective date: 20160502

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20131025

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20171025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171025

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150729

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231110

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231024

Year of fee payment: 11

Ref country code: FR

Payment date: 20231026

Year of fee payment: 11

Ref country code: DE

Payment date: 20231027

Year of fee payment: 11