EP0224396B1 - Control mechanism for a low-tension electric circuit breaker - Google Patents

Control mechanism for a low-tension electric circuit breaker Download PDF

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Publication number
EP0224396B1
EP0224396B1 EP86402267A EP86402267A EP0224396B1 EP 0224396 B1 EP0224396 B1 EP 0224396B1 EP 86402267 A EP86402267 A EP 86402267A EP 86402267 A EP86402267 A EP 86402267A EP 0224396 B1 EP0224396 B1 EP 0224396B1
Authority
EP
European Patent Office
Prior art keywords
lever
plate
circuit breaker
arm
trip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86402267A
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German (de)
French (fr)
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EP0224396A1 (en
Inventor
Michel Lazareth
William Bartolo
Patrick Rousset
Gérard Hervouet
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to AT86402267T priority Critical patent/ATE64234T1/en
Publication of EP0224396A1 publication Critical patent/EP0224396A1/en
Application granted granted Critical
Publication of EP0224396B1 publication Critical patent/EP0224396B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

  • This type of mechanism allows manual control by pivoting of the operating handle and automatic control by triggered piloting by means of a thermal and / or electromagnetic trigger causing in the event of overloads the break in the kinematic chain between the lever and the contact arm.
  • the mechanical members of known mechanisms are generally mounted on articulations formed for example, by needles individually housed in housings, either in the insulating housing, or in a pair of fixed support plates.
  • the assembly of such a mechanism is complicated and requires precise positioning of the actuating members which lengthens the assembly time of the circuit breaker.
  • the axes of the mechanism members are mounted on a fixed plate, but the release effort exerted by the trigger lever to break the mechanical connection is relatively large and increases the trigger time .
  • the contact arm is provided with an L-shaped end urged by a compression spring bearing against a recess of a drive lever.
  • This arrangement of the contact arm does not facilitate total automation of the mounting of the mechanism.
  • the object of the present invention is to provide a simple and reliable construction control mechanism, adapted on the one hand to automate assembly, and on the other hand to reduce the tripping time of a miniature circuit breaker.
  • the control mechanism according to the invention is characterized in that the contact arm is secured to an insulating support lever articulated on the pivot of the plate, and that the trigger lever is pivotally mounted on an axis fixed to the plate, which further comprises bidirectional drive means of the support lever between the open and closed positions, the assembly being arranged to ensure in the closed position a relatively small pivoting movement between the plate and the support lever, thanks to a first contact pressure spring belonging to said elastic system.
  • the axis of articulation of the trigger lever and the pivot come directly from molding with the plate, which avoids the use of special needles.
  • the mechanism is advantageously provided with an auxiliary device for abrupt closure of the contacts, thanks to a locking arm arranged on the insulating support lever of the contact arm.
  • the locking arm cooperates with a pawl pivotally mounted on the axis of the lever.
  • the hooking stop of the plate is formed by a notch having a release ramp intended to push the end of the link towards a cleared position of disengaging, when the trigger lever is in the triggered position.
  • the elastic system comprises a spring, arranged to exert on the plate a torque generating the unlocking action of the ramp on the link to break the mechanical connection. The triggering force from the trigger is minimal and must simply overcome the opposing effort of the return spring of the trigger lever.
  • the trigger lever is advantageously equipped with a step for holding the end of the link against the hooking stop when the mechanical connection is established.
  • the presence of the plate constitutes both a kinematic member for transmitting the rod coupled to the lever, and a combined member for supporting the contact arm and the trigger lever.
  • the support lever and the trigger lever extend parallel to each other with a transverse offset from the vertical plane passing through the plate.
  • the first arm of the trip lever protrudes from the insulating support lever towards the electromagnetic trip device, when the circuit breaker is in the closed position, the assembly being arranged so that the striker of the electromagnetic trip device successively drives the trip lever towards the position triggered, and the support lever towards the contact separation position, when the pole current exceeds the triggering threshold of said electromagnetic trip device.
  • the control mechanism may include a mechanical indicator of the position of the contacts.
  • Said indicator comprises positioning marks arranged on the upper edge of the plate, moving opposite the internal wall of the front face of the housing, which includes a window for viewing the marks.
  • the mechanism 10 for controlling a miniature circuit breaker actuates a movable contact arm 12, one of the ends of which carries a contact piece 14 cooperating with a fixed contact 16.
  • the mechanism 10 is housed at inside an insulating housing 18, above the arc extinguishing chamber (not shown).
  • An opening 20 is formed in the front face 21 of the housing 18 for the passage of a tilting handle 22 for manual control, said handle being mounted with limited pivoting on a fixed axis 24 between a closed position (fig. 1) in which the contacts 14, 16 are closed, and an open position (FIG. 6) corresponding to the separation of the contacts 14, 16.
  • the handle 22 has an internal extension, coupled to a transmission link 26 to constitute a toggle device 28, the articulation 30 of which is eccentric with respect to the fixed axis 24 of the lever 22.
  • the portion of the extension situated between the axis 24 and the articulation 30 forms the other link 32 of the toggle joint 28.
  • the transmission link 26 comprises a U-shaped bracket, in particular made of steel wire.
  • the lever 22 is urged towards the open position by a return spring 34, in particular of the spiral type threaded on the axis 24 and one of the ends 35 of which bears on a boss 36 of the housing 18.
  • the fixed contact 16 is carried by a conductor 17 fixed to the frame of the electromagnetic trip device 66.
  • the free end 37 of the transmission link 26 cooperates by snap-fastening with a hooking stop 38 arranged on a plate 40.
  • the latter is pivotally mounted on a cylindrical pivot 42, positioned transversely in aligned bearings 44, arranged in the opposite faces of the housing 18.
  • the plate 40 has an axis 46 eccentric with respect to the pivot 42, and the trigger lever 48 is pivotally mounted on the axis 46 between an armed position and a triggered position.
  • the contact arm 12 of conductive material in particular copper, is fixed to a support lever 50 of insulating material, articulated on the pivot 42 of the plate 40 opposite the trigger lever 48.
  • the plate 40 is equipped with a cleat 52 for driving the support lever 50 between the open and closed positions of the contact arm 12.
  • the contact arm 12 is fixed to the insulating support lever 50 can be carried out by ultrasonic welding.
  • a contact pressure spring 54 of the torsion type, coaxially surrounds the pivot 42 by bearing on a boss 55 of the support lever 50, and a lug 56 of the plate 40.
  • a spring 58 energy accumulator, of the type compression is arranged between a fixed stop 60 of the housing 18 and the tilting plate 40, and biases the latter towards the open position, when the mechanism 10 is triggered.
  • the presence of the spring 54 allows a relative movement of small amplitude between the plate 40 and the support lever 50.
  • the trigger lever 48 pivoting on the axis 46 comprises a lower lever arm 62 which can be actuated, either by the striker 64 of an electromagnetic trip device 66, or by a release slide 68 cooperating with the bimetallic strip 70 of the thermal trip device.
  • the drawer 68 is guided in translation by means of a guide passage 71 formed in the housing 18.
  • the upper lever arm 72 of the trigger lever 48 is equipped with a step 74 cooperating with the free end 37 of the link transmission 26.
  • a return spring 76 of the spiral type is threaded around the axis 46 and biases the trigger lever 48 towards the armed position.
  • the hooking stop 38 of the plate 40 is formed by a notch 82 having a release ramp from the end 37 of the rod 26 to an unlocked position when the trigger lever 48 is pivoted towards the triggered position.
  • the force of the mechanism opening spring 58 is greater than that of the lever return spring 34.
  • the striker 64 of the electromagnetic trip device 66 comprises a release button 65 made of insulating material, having one end force-fitted into a central bore 86 of the movable core 88, and an opposite end, provided with a cylindrical endpiece 90 extending in the middle zone of the housing 18.
  • the end piece 90 is located opposite the trigger lever 48 and the support lever 50, the latter being offset transversely from one another, so as to be successively driven by the end piece 90, during the magnetic attraction of the movable core 88 of the electromagnetic trip device 66.
  • the lower lever arm 62 projects from the support lever 50 in the direction of the trip device 66.
  • the propulsion of the tip 90 of the striker 64 causes in a first phase the pivoting in the trigonometric direction of the trigger lever 48 towards the position d triggered, followed in a second phase of the driving of the support lever 50 of the contact arm 12 towards the open position of the contacts 16, 14.
  • the position of the stop 38 for hooking onto the plate 40 is located opposite the intervention zone of the trigger on the lever arm 62 with respect to a transverse plane passing through the pivot 42 and the axis 46.
  • the active part of the lower lever arm 62, disposed opposite the end piece 90 is slightly convex so that the tripping force exerted by the striker 64 remains substantially constant during pivoting of the trigger lever 48 about the axis 46.
  • circuit breaker control mechanism 10 The operation of the circuit breaker control mechanism 10 is as follows:
  • the kinematic chain of connection of the lever 22 to the contact arm 12 is never interrupted by virtue of the permanent snap-fastening of the link 26 in the hooking stop 38 of the plate 40.
  • the displacement of the lever 22 is transmitted to the contact arm 12 by means of the link 26, of the plate 40 and of the insulating support lever 50.
  • the manual closure is controlled by pivoting the handle 22 in a clockwise direction towards the position F shown in FIG. 1.
  • the position F of the handle 22 is stable thanks to the exceeding of the neutral point of the toggle joint 28, the return force of the spring 34 acting on the handle 22 being insufficient to overcome the locking force of the toggle joint 28.
  • the manual opening of the circuit breaker results from a movement in the opposite direction of the handle 22 towards the position O (FIG. 6) causing the toggle joint 28 to break, and the pivoting anticlockwise of the plate 40 and the support lever 50 around the pivot 42.
  • the tripping of the circuit breaker is caused by the bimetallic strip 70 of the thermal trip unit or by the striker 64 of the electromagnetic trip unit 66 causing the trip lever 48 to rotate in the trigonometric direction of the armed position (figure 1) to the unlocked position (figure 5).
  • the upper lever arm 72 moves away from the end 37 of the link 26 and causes the locking force to disappear.
  • the couple exerted by the spring 58 in the opening direction requests a slight pivoting of the plate 40 in the trigonometric direction, so as to push the end 37 of the rod 26 downwards, after erasing the step 74 of the trigger lever 48
  • the connecting rod 26 is disengaged with the stop 38 for hooking the plate 40, and the interruption of the mechanical connection between the lever 22 and the contact arm 12.
  • the relaxation of the accumulator spring 58 then causes the contact arm 12 and the plate 40 to pivot freely towards the open position shown in FIG. 6.
  • the action of the return spring 34 of the handle 22 breaks the toggle switch 28 by bringing the handle 22 back to the open position O.
  • the automatic resetting of the mechanism 10 takes place in this position by snap-fastening of the end 37 of the link 26 with the stop 38 for hooking the plate 40.
  • the step 74 of the lever arm 72 locks the link 26, so to reestablish the mechanical connection between the handle 22 and the support lever 50 of the contact arm 12.
  • the mechanism 10 is then ready for a new closure by manual drive of the handle 22 from the position O (FIG. 6) to the position F ( figure 1).
  • the upper edge of the plate 40 can be equipped with markers indicating the open or closed positions of the contact arm 12.
  • the markers are visible from the outside through a window (not shown) formed in the front face 21, and constitute a mechanical indicator allowing an indirect visualization of the separation of the contacts 14, 16, by means of the tilting plate 40. This display is reliable since the contact arm 12 is integral with the support lever 50 driven by the plate 40.
  • the plate 40 serves both as a transmission member for the link 26 and as a combined support member for the contact arm 12 and the trigger lever 48.
  • the pivot 42 and the axis 46 come directly molding with the plate 40, which avoids the use of special metal needles.
  • the plate 40 is produced by molding a metallic or plastic material. A system of fixed stops limits the opening stroke of the mechanism 10.
  • the pivot 42 constitutes a common pivot axis of the plate 40 and the support lever 50, so as to obtain a reduced bulk of the mechanism 10.
  • Transmission of the trigger order multipole is operated by a drive lug (not shown), secured to the trip lever 48 at the axis 46.
  • a fault in one phase leads to simultaneous tripping of the adjacent poles of a multipole circuit breaker.
  • the mechanism 10 is in fact composed of two separate sub-assemblies which can be pre-assembled outside the housing 18 and set up automatically during the mounting of the circuit breaker.
  • the first sub-assembly comprises the plate 40 on which the insulating support lever 50 fitted on the pivot 42 is mounted, and the trigger lever 48 articulated on the axis 46.
  • the contact arm 12 is connected to the bimetallic strip 70 by a conductive braid 94.
  • the first contact pressure spring 54 surrounding the pivot 42 bears on the boss 55 of the support lever 50 and the lug 56 of the plate 40.
  • the second return spring 76 of the trigger lever 48 is then placed around the axis 46.
  • the installation of the first sub-assembly takes place by simple positioning of the pivot 42 in a bearing 44 of the housing 18, followed by the insertion of the compression spring 58.
  • the second sub-assembly includes the handle 22, its return spring 34 and the transmission link 26.
  • the torsion spring 34 is integrated in the handle 22, and the strand 35 is taken in load by the boss 36 of the housing 18 during the establishment of the second sub-assembly.
  • the free end 37 of the rod 26 is then positioned in the notch 82 of the hooking stop 38 to make the mechanical connection between the lever 22 and the contact arm 12.
  • the mechanism 10 for controlling the circuit breaker is equipped with an auxiliary closing device abrupt, designated by the general reference 100, and comprising a retaining pawl 102 cooperating with a ramp 104 extending along an arm 106 for temporary locking of the insulating support lever 50.
  • the pawl 102 pivotally mounted on the axis 24 of the handle 22, is associated with a return spring 108 which biases the pawl 102 in the counterclockwise direction against a stop 110 of the handle 22.
  • the locking arm 106 is arranged between the transmission link 26 and the electromagnetic trip device 66.
  • the operation of the auxiliary abrupt closing device 100 is as follows:
  • the circuit breaker is closed by tilting the handle 22 from the left (figure 7) to the right (figure 9).
  • the kinematic chain connecting the lever 22 to the plate 40 drives the contact arm 12 to the fixed contact 16.
  • the pawl 102 rotates with the lever 22 clockwise , and approaches the arm 106 for locking the support lever 50, which rotates in the opposite direction.
  • the engagement of the pawl 102 with the ramp 104 of the locking arm 106 stops the rotation of the support lever 50, and maintains the contact piece 14 of the contact arm 12 at a predetermined distance from the fixed contact 16 (FIG. 8).
  • the manual opening of the circuit breaker is effected by a reverse tilting movement of the handle 22 (passage from FIG. 9 to FIG. 7). Under the action of its return spring 108, the pawl 102 disappears and remains in the inactive position, so as not to impede the free pivoting of the plate 40 and the support lever 50 in the counterclockwise direction to the position opening (figure 7).

Abstract

A mechanism for a circuit breaker includes a support lever insulated from a contact arm and a trip lever supported by a plate fitted with limited swivelling on a pivot. A mechanical link arranged between a toggle-joint and the contact arm includes a latching stop fixed on the plate. The stop is formed by a notch cooperating with a step of the trip lever to push the end of a toggle rod back to a retracted unlatched positon, as soon as the trip lever is actuated to the tripped position. The support lever is equipped with a locking arm having a sloping part cooperating with a pawl of the handle to form a high-speed contact closing device.

Description

L'invention est relative à un mécanisme de commande d'un disjoncteur électrique ayant une paire de contacts séparables, logés dans un boîtier isolant moulé, et comprenant:

  • une mannette de manoeuvre manuelle montée à basculement sur un axe entre une position O d'ouverture et une position F de fermeture,
  • une biellette de transmission accouplée à la manette pour former une genouillère,
  • un ressort de rappel de la manette vers la position O d'ouverture,
  • une platine montée à rotation sur un pivot, et ayant une butée d'accrochage coopérant par encliquetage avec l'extrémité libre de la biellette, de manière à constituer une liaison mécanique entre la manette et la platine,
  • un levier de déclenchement pour provoquer la rupture de ladite liaison mécanique par désencliquetage de la biellette et de la butée, suite à un défaut entraînant le déclenchement automatique du mécanisme, indépendamment de la manette,
  • et un système élastique assurant la pression de contact en position de fermeture des contacts et le déplacement de la platine vers la position d'ouverture après déclenchement, le contact mobile étant porté par un bras de contact en matériau conducteur.
The invention relates to a control mechanism for an electric circuit breaker having a pair of separable contacts, housed in a molded insulating housing, and comprising:
  • a manual operating handle mounted to tilt on an axis between an open position O and a closed position F,
  • a transmission link coupled to the lever to form a toggle,
  • a return spring from the lever to the open position O,
  • a plate rotatably mounted on a pivot, and having a hooking stop cooperating by snap-fastening with the free end of the link, so as to constitute a mechanical connection between the lever and the plate,
  • a trigger lever for causing the rupture of said mechanical connection by disengaging the link and the stop, following a fault resulting in the automatic triggering of the mechanism, independently of the lever,
  • and an elastic system ensuring the contact pressure in the closed position of the contacts and the displacement of the plate towards the open position after tripping, the movable contact being carried by a contact arm made of conductive material.

Ce type de mécanisme autorise une commande manuelle par pivotement de la manette de manoeuvre et une commande automatique par déclenchement piloté au moyen d'un déclencheur thermique et/ou électromagnétique entraînant en cas de surcharge la brisure de la chaîne cinématique entre la manette et le bras de contact.This type of mechanism allows manual control by pivoting of the operating handle and automatic control by triggered piloting by means of a thermal and / or electromagnetic trigger causing in the event of overloads the break in the kinematic chain between the lever and the contact arm.

Les organes mécaniques des mécanismes connus sont généralement montés sur des articulations formées par exemple, par des aiguilles logées individuellement dans des paliers ménagés, soit dans le boîtier isolant, soit dans une paire de platines fixes de support. Le montage d'un tel mécanisme est compliqué et nécessite un positionnement précis des organes d'actionnement qui rallonge le temps de montage du disjoncteur.The mechanical members of known mechanisms are generally mounted on articulations formed for example, by needles individually housed in housings, either in the insulating housing, or in a pair of fixed support plates. The assembly of such a mechanism is complicated and requires precise positioning of the actuating members which lengthens the assembly time of the circuit breaker.

Selon le document FR-A-2.350.679, les axes des organes du mécanisme sont montés sur une platine fixe, mais l'effort de désencliquetage exercé par le levier de déclenchement pour briser la liaison mécanique est relativement important et augmente le temps de déclenchement.According to document FR-A-2,350,679, the axes of the mechanism members are mounted on a fixed plate, but the release effort exerted by the trigger lever to break the mechanical connection is relatively large and increases the trigger time .

Selon le document EP-A-147.629, le bras de contact est doté d'une extrémité en L sollicitée par un ressort de compression en appui contre un évidement d'un levier d'entraînement. Cet agencement du bras de contact ne facilite pas l'automatisation totale du montage du mécanisme. L'objet de la présente invention consiste à réaliser un mécanisme de commande de construction simple et fiable, adapté d'une part à une automatisation du montage, et d'autre part à une diminution du temps de déclenchement d'un disjoncteur miniature.According to document EP-A-147,629, the contact arm is provided with an L-shaped end urged by a compression spring bearing against a recess of a drive lever. This arrangement of the contact arm does not facilitate total automation of the mounting of the mechanism. The object of the present invention is to provide a simple and reliable construction control mechanism, adapted on the one hand to automate assembly, and on the other hand to reduce the tripping time of a miniature circuit breaker.

Le mécanisme de commande selon l'invention est caractérisé en ce que le bras de contact est solidarisé à un levier support isolant articulé sur le pivot de la platine, et que le levier de déclenchement est monté à pivotement sur un axe fixé à la platine, laquelle comporte de plus des moyens d'entraînement bidirectionnel du levier support entre les positions d'ouverture et de fermeture, l'ensemble étant agencé pour assurer en position de fermeture un mouvement relatif de pivotement de faible amplitude entre la platine et le levier support, grâce à un premier ressort de pression de contact appartenant audit système élastique.The control mechanism according to the invention is characterized in that the contact arm is secured to an insulating support lever articulated on the pivot of the plate, and that the trigger lever is pivotally mounted on an axis fixed to the plate, which further comprises bidirectional drive means of the support lever between the open and closed positions, the assembly being arranged to ensure in the closed position a relatively small pivoting movement between the plate and the support lever, thanks to a first contact pressure spring belonging to said elastic system.

L'axe d'articulation du levier de déclenchement et le pivot viennent directement de moulage avec la platine, ce qui évite l'utilisation d'aiguilles spéciales.The axis of articulation of the trigger lever and the pivot come directly from molding with the plate, which avoids the use of special needles.

Le mécanisme est avantageusement doté d'un dispositif auxiliaire de fermeture brusque des contacts, grâce à un bras de blocage agencé sur le levier support isolant du bras de contact. Le bras de blocage coopère avec un cliquet monté à pivotement sur l'axe de la manette.The mechanism is advantageously provided with an auxiliary device for abrupt closure of the contacts, thanks to a locking arm arranged on the insulating support lever of the contact arm. The locking arm cooperates with a pawl pivotally mounted on the axis of the lever.

La butée d'accrochage de la platine est formée par une encoche présentant une rampe de dégagement destinée à repousser l'extrémité de la biellette vers une position effacée de désencliquetage, lorsque le levier de déclenchement se trouve en position déclenchée. Le sytème élastique comporte un ressort, agencé pour exercer sur la platine un couple engendrant l'action de déverrouillage de la rampe sur la biellette pour rompre la liaison mécanique. L'effort de déclenchement issu du déclencheur est minime et doit simplement vaincre l'effort antagoniste du ressort de rappel du levier de déclenchement.The hooking stop of the plate is formed by a notch having a release ramp intended to push the end of the link towards a cleared position of disengaging, when the trigger lever is in the triggered position. The elastic system comprises a spring, arranged to exert on the plate a torque generating the unlocking action of the ramp on the link to break the mechanical connection. The triggering force from the trigger is minimal and must simply overcome the opposing effort of the return spring of the trigger lever.

Le levier de déclenchement est équipé avantageusement d'un gradin de maintien de l'extrémité de la biellette contre la butée d'accrochage lors de l'établissement de la liaison mécanique.The trigger lever is advantageously equipped with a step for holding the end of the link against the hooking stop when the mechanical connection is established.

La présence de la platine constitue à la fois un organe cinématique de transmission de la biellette accouplée à la manette, et un organe de support combiné du bras de contact et du levier de déclenchement.The presence of the plate constitutes both a kinematic member for transmitting the rod coupled to the lever, and a combined member for supporting the contact arm and the trigger lever.

Le levier support et le levier de déclenchement s'étendent parallèlement l'un à l'autre avec un décalage transversal par rapport au plan vertical passant par la platine. Le premier bras du levier de déclenchement fait saillie du levier support isolant en direction du déclencheur électromagnétique, lorsque le disjoncteur se trouve en position de fermeture, l'ensemble étant agencé pour que le percuteur du déclencheur électromagnétique entraîne successivement le levier de déclenchement vers la position déclenchée, et le levier support vers la position de séparation des contacts, lorsque le courant du pôle dépasse le seuil de déclenchement dudit déclencheur électromagnétique.The support lever and the trigger lever extend parallel to each other with a transverse offset from the vertical plane passing through the plate. The first arm of the trip lever protrudes from the insulating support lever towards the electromagnetic trip device, when the circuit breaker is in the closed position, the assembly being arranged so that the striker of the electromagnetic trip device successively drives the trip lever towards the position triggered, and the support lever towards the contact separation position, when the pole current exceeds the triggering threshold of said electromagnetic trip device.

La séparation longitudinale du pivot de la platine et de l'axe de pivotement du levier de déclenchement, et le décalage transversal entre le levier support et le levier de déclenchement, autorisent une commande de déclenchement du pôle voisin, dès le début de la course de déclenchement du percuteur. Un défaut sur une phase entraîne de ce fait un déclenchement simultané des pôles accolés d'un disjoncteur multipolaire.The longitudinal separation of the turntable pivot and the pivot axis of the release lever, and the transverse offset between the support lever and the release lever trip, authorize a trip command from the neighboring pole, from the start of the striker trip. A fault on one phase therefore leads to simultaneous tripping of the adjacent poles of a multipole circuit breaker.

Le mécanisme de commande peut comporter un indicateur mécanique de la position des contacts. Ledit indicateur comprend des repères de positionnement agencés sur le chant supérieur de la platine, se déplaçant en regard de la paroi interne de la face avant du boîtier, laquelle comporte une fenêtre de visualisation des repères.The control mechanism may include a mechanical indicator of the position of the contacts. Said indicator comprises positioning marks arranged on the upper edge of the plate, moving opposite the internal wall of the front face of the housing, which includes a window for viewing the marks.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de plusieurs modes de réalisation de l'invention, donnés à titre d'exemples non limitatifs et représentés aux dessins annexés dans lesquels:

  • La figure 1 est une vue en élévation du mécanisme de commande selon l'invention, le disjoncteur étant représenté en position de fermeture,
  • les figures 2 à 4 montrent des vues de profil et en coupe selon les lignes II-II, III-III, IV-IV, de la figure 1;
  • la figure 5 est une vue identique de la figure 1, en cours de déclenchement du mécanisme, la manette étant maintenue en position F de fermeture,
  • la figure 6 est une vue identique de la figure 1, en position d'ouverture du disjoncteur,
  • les figures 7 à 9 représentent une variante de réalisation du mécanisme selon la figure 1 avec fermeture brusque des contacts, le mécanisme étant représenté respectivement en position d'ouverture, en cours de fermeture et en position de fermeture complète.
Other advantages and characteristics will emerge more clearly from the description which follows of several embodiments of the invention, given by way of nonlimiting examples and represented in the appended drawings in which:
  • FIG. 1 is an elevation view of the control mechanism according to the invention, the circuit breaker being shown in the closed position,
  • Figures 2 to 4 show side views in section along the lines II-II, III-III, IV-IV, of Figure 1;
  • FIG. 5 is an identical view to FIG. 1, during the triggering of the mechanism, the lever being held in the closed position F,
  • FIG. 6 is an identical view to FIG. 1, in the open position of the circuit breaker,
  • Figures 7 to 9 show an alternative embodiment of the mechanism according to Figure 1 with abrupt closure of the contacts, the mechanism being shown respectively in the open position, during closing and in the fully closed position.

En référence aux figures 1 à 6, le mécanisme 10 de commande d'un disjoncteur miniature actionne un bras de contact 12 mobile dont l'une des extrémités porte une pièce de contact 14 coopérant avec un contact fixe 16. Le mécanisme 10 est logé à l'intérieur d'un boîtier 18 isolant, au-dessus de la chambre d'extinction d'arc (non représentée). Une ouverture 20 est ménagée dans la face avant 21 du boîtier 18 pour le passage d'une manette 22 basculante de commande manuelle, ladite manette étant montée à pivotement limité sur un axe fixe 24 entre une position de fermeture (fig. 1) dans laquelle les contacts 14, 16, sont fermés, et une position d'ouverture (figure 6) correspondant à la séparation des contacts 14, 16. La manette 22 présente une extension interne, accouplée à une biellette de transmission 26 pour constituer un dispositif à genouillère 28 dont l'articulation 30 se trouve excentrée par rapport à l'axe fixe 24 de la manette 22. La portion de l'extension située entre l'axe 24 et l'articulation 30 forme l'autre biellette 32 de la genouillère 28. La biellette de transmission 26 comprend un étrier en U, notamment en fil métallique d'acier. La manette 22 est sollicitée vers la position d'ouverture par un ressort de rappel 34, notamment du type spirale enfilé sur l'axe 24 et dont l'une 35 des extrémités prend appui sur un bossage 36 du boîtier 18.With reference to FIGS. 1 to 6, the mechanism 10 for controlling a miniature circuit breaker actuates a movable contact arm 12, one of the ends of which carries a contact piece 14 cooperating with a fixed contact 16. The mechanism 10 is housed at inside an insulating housing 18, above the arc extinguishing chamber (not shown). An opening 20 is formed in the front face 21 of the housing 18 for the passage of a tilting handle 22 for manual control, said handle being mounted with limited pivoting on a fixed axis 24 between a closed position (fig. 1) in which the contacts 14, 16 are closed, and an open position (FIG. 6) corresponding to the separation of the contacts 14, 16. The handle 22 has an internal extension, coupled to a transmission link 26 to constitute a toggle device 28, the articulation 30 of which is eccentric with respect to the fixed axis 24 of the lever 22. The portion of the extension situated between the axis 24 and the articulation 30 forms the other link 32 of the toggle joint 28. The transmission link 26 comprises a U-shaped bracket, in particular made of steel wire. The lever 22 is urged towards the open position by a return spring 34, in particular of the spiral type threaded on the axis 24 and one of the ends 35 of which bears on a boss 36 of the housing 18.

Le contact fixe 16 est porté par un conducteur 17 fixé à la carcasse du déclencheur électromagnétique 66.The fixed contact 16 is carried by a conductor 17 fixed to the frame of the electromagnetic trip device 66.

A l'opposé de l'articulation 30, l'extrémité libre 37 de la biellette de transmission 26 coopère par encliquetage avec une butée d'accrochage 38 agencée sur une platine 40. Cette dernière est montée à basculement sur un pivot 42 cylindrique, positionné transversalement dans des paliers 44 alignés, ménagés dans les faces opposées du boîtier 18. La platine 40 comporte un axe 46 excentré par rapport au pivot 42, et le levier de déclenchement 48 est monté à pivotement limité sur l'axe 46 entre une position armée et une position déclenchée.Opposite the articulation 30, the free end 37 of the transmission link 26 cooperates by snap-fastening with a hooking stop 38 arranged on a plate 40. The latter is pivotally mounted on a cylindrical pivot 42, positioned transversely in aligned bearings 44, arranged in the opposite faces of the housing 18. The plate 40 has an axis 46 eccentric with respect to the pivot 42, and the trigger lever 48 is pivotally mounted on the axis 46 between an armed position and a triggered position.

Le bras de contact 12 en matériau conducteur, notamment en cuivre, est fixé à un levier support 50 en matériau isolant, articulé sur le pivot 42 de la platine 40 à l'opposé du levier de déclenchement 48. La platine 40 est équipé d'un taquet 52 d'entraînement du levier support 50 entre les positions d'ouverture et de fermeture du bras de contact 12. La fixation du bras de contact 12 au levier support 50 isolant peut s'effectuer par soudage aux ultrasons.The contact arm 12 of conductive material, in particular copper, is fixed to a support lever 50 of insulating material, articulated on the pivot 42 of the plate 40 opposite the trigger lever 48. The plate 40 is equipped with a cleat 52 for driving the support lever 50 between the open and closed positions of the contact arm 12. The contact arm 12 is fixed to the insulating support lever 50 can be carried out by ultrasonic welding.

Un ressort 54 de pression de contact, du type à torsion, entoure coaxialement le pivot 42 en prenant appui sur un bossage 55 du levier support 50, et un ergot 56 de la platine 40. Un ressort 58 accumulateur d'énergie, du type à compression est agencé entre une butée 60 fixe du boîtier 18 et la platine 40 basculante, et sollicite cette dernière vers la position d'ouverture, lors du déclenchement du mécanisme 10. La présence du ressort 54 permet un mouvement relatif de faible amplitude entre la platine 40 et le levier support 50.A contact pressure spring 54, of the torsion type, coaxially surrounds the pivot 42 by bearing on a boss 55 of the support lever 50, and a lug 56 of the plate 40. A spring 58 energy accumulator, of the type compression is arranged between a fixed stop 60 of the housing 18 and the tilting plate 40, and biases the latter towards the open position, when the mechanism 10 is triggered. The presence of the spring 54 allows a relative movement of small amplitude between the plate 40 and the support lever 50.

Le levier de déclenchement 48 pivotant sur l'axe 46 comporte un bras de levier 62 inférieur pouvant être actionné, soit par le percuteur 64 d'un déclencheur électromagnétique 66, soit par un tiroir 68 de déverrouillage coopérant avec la bilame 70 du déclencheur thermique. Le tiroir 68 est guidé en translation au moyen d'un couloir de guidage 71 conformé dans le boîtier 18. Le bras de levier 72 supérieur du levier de déclenchement 48 est équipé d'un gradin 74 coopérant avec l'extrémité libre 37 de la biellette de transmission 26. Un ressort de rappel 76 du type à spirale est enfilé autour de l'axe 46 et sollicite le levier de déclenchement 48 vers la position armée.The trigger lever 48 pivoting on the axis 46 comprises a lower lever arm 62 which can be actuated, either by the striker 64 of an electromagnetic trip device 66, or by a release slide 68 cooperating with the bimetallic strip 70 of the thermal trip device. The drawer 68 is guided in translation by means of a guide passage 71 formed in the housing 18. The upper lever arm 72 of the trigger lever 48 is equipped with a step 74 cooperating with the free end 37 of the link transmission 26. A return spring 76 of the spiral type is threaded around the axis 46 and biases the trigger lever 48 towards the armed position.

Dans cette position armée (figure 1), l'extrémité 37 de la biellette 26 repose sur la face d'appui du gradin 74 et est maintenue par le bras de levier 72 supérieur contre la butée 38 d'accrochage, de manière à former une liaison mécanique entre la manette 22 et la platine 40. Cette liaison peut être interrrompue au cours du déclenchement par désencliquetage de la biellette de transmission 26 avec la butée 38 d'accrochage intervenant lors du pivotement de levier de déclenchement 48 dans le sens trigonométrique (voir figure 5).In this armed position (FIG. 1), the end 37 of the link 26 rests on the bearing face of the step 74 and is held by the upper lever arm 72 against the hooking stop 38, so as to form a mechanical connection between the lever 22 and the plate 40. This connection can be interrupted during the triggering by disengaging the connecting rod transmission 26 with the hooking stopper 38 intervening during the pivoting of the trigger lever 48 in the trigonometric direction (see FIG. 5).

La butée d'accrochage 38 de la platine 40 est formée par une encoche 82 présentant une rampe de dégagement de l'extrémité 37 de la biellette 26 vers une position déverrouillée lors du pivotement du levier de déclenchement 48 vers la position déclenchée. La force du ressort 58 d'ouverture du mécanisme est supérieure à celle du ressort 34 de rappel de la manette 22.The hooking stop 38 of the plate 40 is formed by a notch 82 having a release ramp from the end 37 of the rod 26 to an unlocked position when the trigger lever 48 is pivoted towards the triggered position. The force of the mechanism opening spring 58 is greater than that of the lever return spring 34.

Le percuteur 64 du déclencheur électromagnétique 66 comporte un poussoir 65 de déverrouillage en matériau isolant, ayant une extrémité emmanchée à force dans un alésage 86 central du noyau mobile 88, et une extrémité opposée, dotée d'un embout 90 cylindrique s'étendant dans la zone médiane du boîtier 18. L'embout 90 se trouve en regard du levier de déclenchement 48 et du levier support 50, ces derniers étant décalés transversalement l'un de l'autre, de manière à être entraînés successivement par l'embout 90, lors de l'attraction magnétique du noyau mobile 88 du déclencheur électromagnétique 66. En position armée (figure 1), on remarque que le bras de levier 62 inférieur fait saillie du levier support 50 en direction du déclencheur 66. Lors du déclenchement suite à un court-circuit, la propulsion de l'embout 90 du percuteur 64 provoque dans une première phase le pivotement dans le sens trigonométrique du levier de déclenchement 48 vers la position déclenchée, suivi dans une deuxième phase de l'entraînement du levier support 50 du bras de contact 12 vers la position d'ouverture des contacts 16, 14.The striker 64 of the electromagnetic trip device 66 comprises a release button 65 made of insulating material, having one end force-fitted into a central bore 86 of the movable core 88, and an opposite end, provided with a cylindrical endpiece 90 extending in the middle zone of the housing 18. The end piece 90 is located opposite the trigger lever 48 and the support lever 50, the latter being offset transversely from one another, so as to be successively driven by the end piece 90, during the magnetic attraction of the movable core 88 of the electromagnetic trip device 66. In the armed position (FIG. 1), it is noted that the lower lever arm 62 projects from the support lever 50 in the direction of the trip device 66. During the trip following a short circuit, the propulsion of the tip 90 of the striker 64 causes in a first phase the pivoting in the trigonometric direction of the trigger lever 48 towards the position d triggered, followed in a second phase of the driving of the support lever 50 of the contact arm 12 towards the open position of the contacts 16, 14.

La position de la butée 38 d'accrochage sur la platine 40 est située à l'opposé de la zone d'intervention du déclencheur sur le bras de levier 62 par rapport à un plan transversal passant par le pivot 42 et l'axe 46. La partie active du bras de levier 62 inférieur, disposé en regard de l'embout 90 est légèrement convexe pour que l'effort de déclenchement exercé par le percuteur 64 reste sensiblement constant lors du pivotement du levier de déclenchement 48 autour de l'axe 46.The position of the stop 38 for hooking onto the plate 40 is located opposite the intervention zone of the trigger on the lever arm 62 with respect to a transverse plane passing through the pivot 42 and the axis 46. The active part of the lower lever arm 62, disposed opposite the end piece 90 is slightly convex so that the tripping force exerted by the striker 64 remains substantially constant during pivoting of the trigger lever 48 about the axis 46.

Le fonctionnement du mécanisme 10 de commande du disjoncteur est le suivant:The operation of the circuit breaker control mechanism 10 is as follows:

COMMANDE MANUELLEMANUAL COMMAND

Au cours d'une manoeuvre manuelle du mécanisme 10 du disjoncteur, la chaîne cinématique de liaison de la manette 22 au bras de contact 12, n'est jamais interrompue grâce à l'encliquetage permanent de la biellette 26 dans la butée d'accrochage 38 de la platine 40. Le déplacement de la manette 22 est transmis au bras de contact 12 par l'intermédiaire de la biellette 26, de la platine 40 et du levier support 50 isolant. La fermeture manuelle est commandée par pivotement de la manette 22 dans le sens des aiguilles d'une montre vers la position F représentée sur la figure 1. La position F de la manette 22 est stable grâce au dépassement du point mort de la genouillère 28, la force de rappel du ressort 34 s'exerçant sur la manette 22 étant insuffisante pour vaincre l'effort de verrouillage de la genouillère 28. L'ouverture manuelle du disjoncteur résulte d'un déplacement en sens inverse de la manette 22 vers la position O (figure 6) provoquant le brisage de la genouillère 28, et le pivotement dans le sens inverse des aiguilles d'une montre de la platine 40 et du levier support 50 autour du pivot 42.During a manual operation of the mechanism 10 of the circuit breaker, the kinematic chain of connection of the lever 22 to the contact arm 12, is never interrupted by virtue of the permanent snap-fastening of the link 26 in the hooking stop 38 of the plate 40. The displacement of the lever 22 is transmitted to the contact arm 12 by means of the link 26, of the plate 40 and of the insulating support lever 50. The manual closure is controlled by pivoting the handle 22 in a clockwise direction towards the position F shown in FIG. 1. The position F of the handle 22 is stable thanks to the exceeding of the neutral point of the toggle joint 28, the return force of the spring 34 acting on the handle 22 being insufficient to overcome the locking force of the toggle joint 28. The manual opening of the circuit breaker results from a movement in the opposite direction of the handle 22 towards the position O (FIG. 6) causing the toggle joint 28 to break, and the pivoting anticlockwise of the plate 40 and the support lever 50 around the pivot 42.

DECLENCHEMENT AUTOMATIQUEAUTOMATIC TRIGGERING

A la suite d'un courant de surcharge ou de court-circuit, le déclenchement du disjoncteur est provoqué par la bilame 70 du déclencheur thermique ou par le percuteur 64 du déclencheur électromagnétique 66 faisant pivoter le levier de déclenchement 48 dans le sens trigonométrique de la position armée (figure 1) vers la position déverrouillée (figure 5). Le bras de levier 72 supérieur s'écarte de l'extrémité 37 de la biellette 26 et provoque la disparition de l'effort de verrouillage. Le couple exercé par le ressort 58 dans le sens d'ouverture sollicite un léger pivotement de la platine 40 dans le sens trigonométrique, de manière à repousser l'extrémité 37 de la biellette 26 vers le bas, après effacement du gradin 74 du levier de déclenchement 48. Au cours de cette première phase de déclenchement s'opèrent le désencliquetage de la biellette 26 avec la butée 38 d'accrochage de la platine 40, et l'interruption de la liaison mécanique entre la manette 22 et le bras de contact 12. Le détente du ressort 58 accumulateur provoque ensuite le libre pivotement du bras de contact 12 et de la platine 40 vers la position d'ouverture représentée à la figure 6. Au cours de cette seconde phase de déclenchement, l'action du ressort 34 de rappel de la manette 22 brise la genouillère 28 en ramenant la manette 22 vers la position O d'ouverture. Le réarmement automatique du mécanisme 10 s'effectue dans cette position par encliquetage de l'extrémité 37 de la biellette 26 avec la butée 38 d'accrochage de la platine 40. Le gradin 74 du bras de levier 72 verrouille la biellette 26, de manière à rétablir la liaison mécanique entre la manette 22 et le levier support 50 du bras de contact 12. Le mécanisme 10 est alors prêt à une nouvelle fermeture par entraînement manuel de la manette 22 de la position O (figure 6) vers la position F (figure 1).Following an overload or short-circuit current, the tripping of the circuit breaker is caused by the bimetallic strip 70 of the thermal trip unit or by the striker 64 of the electromagnetic trip unit 66 causing the trip lever 48 to rotate in the trigonometric direction of the armed position (figure 1) to the unlocked position (figure 5). The upper lever arm 72 moves away from the end 37 of the link 26 and causes the locking force to disappear. The couple exerted by the spring 58 in the opening direction requests a slight pivoting of the plate 40 in the trigonometric direction, so as to push the end 37 of the rod 26 downwards, after erasing the step 74 of the trigger lever 48 During this first tripping phase, the connecting rod 26 is disengaged with the stop 38 for hooking the plate 40, and the interruption of the mechanical connection between the lever 22 and the contact arm 12. The relaxation of the accumulator spring 58 then causes the contact arm 12 and the plate 40 to pivot freely towards the open position shown in FIG. 6. During this second triggering phase, the action of the return spring 34 of the handle 22 breaks the toggle switch 28 by bringing the handle 22 back to the open position O. The automatic resetting of the mechanism 10 takes place in this position by snap-fastening of the end 37 of the link 26 with the stop 38 for hooking the plate 40. The step 74 of the lever arm 72 locks the link 26, so to reestablish the mechanical connection between the handle 22 and the support lever 50 of the contact arm 12. The mechanism 10 is then ready for a new closure by manual drive of the handle 22 from the position O (FIG. 6) to the position F ( figure 1).

Le chant supérieur de la platine 40 peut être équipé de repères indicateurs des positions d'ouverture ou de fermeture du bras de contact 12. Les repères sont visibles de l'extérieur par une fenêtre (non représentée) ménagée dans la face avant 21, et constituent un indicateur mécanique permettant une visualisation indirecte de la séparation des contacts 14, 16, par l'intermédaire de la platine 40 basculante. Cette visualisation est fiable étant donné que le bras de contact 12 est solidaire du levier support 50 entraîné par la platine 40.The upper edge of the plate 40 can be equipped with markers indicating the open or closed positions of the contact arm 12. The markers are visible from the outside through a window (not shown) formed in the front face 21, and constitute a mechanical indicator allowing an indirect visualization of the separation of the contacts 14, 16, by means of the tilting plate 40. This display is reliable since the contact arm 12 is integral with the support lever 50 driven by the plate 40.

Il convient de noter que la platine 40 sert à la fois d'organe de transmission pour la biellette 26 et d'organe de support combiné du bras de contact 12 et du levier de déclenchement 48. Le pivot 42 et l'axe 46 viennent directement de moulage avec la platine 40, ce qui évite l'utilisation d'aiguilles métalliques spéciales. La platine 40 est réalisée par moulage d'un matériau métallique ou plastique. Un système de butées fixes limite la course d'ouverture du mécanisme 10.It should be noted that the plate 40 serves both as a transmission member for the link 26 and as a combined support member for the contact arm 12 and the trigger lever 48. The pivot 42 and the axis 46 come directly molding with the plate 40, which avoids the use of special metal needles. The plate 40 is produced by molding a metallic or plastic material. A system of fixed stops limits the opening stroke of the mechanism 10.

Le pivot 42 constitue un axe commun de pivotement de la platine 40 et du levier support 50, de manière à obtenir un encombrement réduit du mécanisme 10. La séparation longitudinale du pivot 42 de la platine 40 et de l'axe 46 de pivotement du levier de déclenchement 48, combinée avec le décalage transversal entre le levier support 50 et le bras de levier 62 inférieur, autorise une commande de déclenchement du pôle voisin dès le début de la course de déclenchement du levier 48. La transmission de l'ordre de déclenchement multipolaire s'opère grâce à un ergot d'entraînement (non représenté), solidarisé au levier de déclenchement 48 au niveau de l'axe 46. Un défaut sur une phase entraîne un déclenchement simultané des pôles accolés d'un disjoncteur multipolaire. Le mécanisme 10 est en fait composé de deux sous-ensembles distincts pouvant être prémontés à l'extérieur du boîtier 18 et mis en place automatiquement lors du montage du disjoncteur.The pivot 42 constitutes a common pivot axis of the plate 40 and the support lever 50, so as to obtain a reduced bulk of the mechanism 10. The longitudinal separation of the pivot 42 of the plate 40 and the pivot axis 46 of the lever trigger 48, combined with the transverse offset between the support lever 50 and the lower lever arm 62, authorizes a trigger command from the neighboring pole from the start of the trigger stroke of the lever 48. Transmission of the trigger order multipole is operated by a drive lug (not shown), secured to the trip lever 48 at the axis 46. A fault in one phase leads to simultaneous tripping of the adjacent poles of a multipole circuit breaker. The mechanism 10 is in fact composed of two separate sub-assemblies which can be pre-assembled outside the housing 18 and set up automatically during the mounting of the circuit breaker.

Le premier sous-ensemble comprend la platine 40 sur laquelle s'effectue le montage du levier support 50 isolant enfilé sur le pivot 42, et du levier de déclenchement 48 articulé sur l'axe 46. Le bras de contact 12 est relié au bilame 70 par une tresse 94 conductrice. Le premier ressort 54 de pression de contact entourant le pivot 42 prend appui sur le bosage 55 du levier support 50 et l'ergot 56 de la platine 40. Le deuxième ressort 76 de rappel du levier de déclenchement 48 est ensuite mis en place autour de l'axe 46. L'installation du premier sous-ensemble s'opère par simple positionnement du pivot 42 dans un palier 44 du boîtier 18, suivi de l'insertion du ressort 58 de compression.The first sub-assembly comprises the plate 40 on which the insulating support lever 50 fitted on the pivot 42 is mounted, and the trigger lever 48 articulated on the axis 46. The contact arm 12 is connected to the bimetallic strip 70 by a conductive braid 94. The first contact pressure spring 54 surrounding the pivot 42 bears on the boss 55 of the support lever 50 and the lug 56 of the plate 40. The second return spring 76 of the trigger lever 48 is then placed around the axis 46. The installation of the first sub-assembly takes place by simple positioning of the pivot 42 in a bearing 44 of the housing 18, followed by the insertion of the compression spring 58.

Le deuxième sous-ensemble comporte la manette 22, son ressort de rappel 34 et la biellette 26 de transmission. Le ressort 34 de torsion est intégré dans la manette 22, et le brin 35 est pris en charge par le bossage 36 du boîtier 18 lors de la mise en place du deuxième sous-ensemble. L'extrémité 37 libre de la biellette 26 est ensuite positionée dans l'encoche 82 de la butée d'accrochage 38 pour réaliser la liaison mécanique entre la manette 22 et le bras de contact 12.The second sub-assembly includes the handle 22, its return spring 34 and the transmission link 26. The torsion spring 34 is integrated in the handle 22, and the strand 35 is taken in load by the boss 36 of the housing 18 during the establishment of the second sub-assembly. The free end 37 of the rod 26 is then positioned in the notch 82 of the hooking stop 38 to make the mechanical connection between the lever 22 and the contact arm 12.

Dans la variante du dispositif des figures 7 à 9, les mêmes numéros de repères seront utilisés pour désigner des pièces identiques à celles du disjoncteur selon les figures 1 à 6. Le mécanisme 10 de commande du disjoncteur est équipé d'un dispositif auxiliaire de fermeture brusque, désigné par le repère général 100, et comprenant un cliquet 102 de retenue coopérant avec une rampe 104 s'étendant le long d'un bras 106 de blocage temporaire du levier support 50 isolant. Le cliquet 102 monté à pivotement sur l'axe 24 de la manette 22, est associé à un ressort 108 de rappel qui sollicite le cliquet 102 dans le sens trigonométrique contre une butée 110 de la manette 22. Le bras 106 de blocage est agencé entre la biellette 26 de transmission et le déclencheur électromagnétique 66. Le fonctionnement du dispositif auxiliaire de fermeture brusque 100 est le suivant:In the variant of the device in FIGS. 7 to 9, the same reference numbers will be used to designate parts identical to those of the circuit breaker according to FIGS. 1 to 6. The mechanism 10 for controlling the circuit breaker is equipped with an auxiliary closing device abrupt, designated by the general reference 100, and comprising a retaining pawl 102 cooperating with a ramp 104 extending along an arm 106 for temporary locking of the insulating support lever 50. The pawl 102 pivotally mounted on the axis 24 of the handle 22, is associated with a return spring 108 which biases the pawl 102 in the counterclockwise direction against a stop 110 of the handle 22. The locking arm 106 is arranged between the transmission link 26 and the electromagnetic trip device 66. The operation of the auxiliary abrupt closing device 100 is as follows:

_ la fermeture du disjoncteur s'effectue par un basculement de la manette 22 de la gauche (figure 7) vers la droite (figure 9). Au début de la course de fermeture, la chaîne cinématique de liaison de la manette 22 à la platine 40 entraîne le bras de contact 12 vers le contact fixe 16. Le cliquet 102 tourne avec la manette 22 dans le sens des aiguilles d'une montre, et se rapproche du bras 106 de blocage du levier support 50, lequel tourne en sens inverse. L'engagement du cliquet 102 avec la rampe 104 du bras 106 de blocage stoppe la rotation du levier support 50, et maintient la pièce de contact 14 du bras de contact 12 à une distance d prédéterminée du contact fixe 16 (figure 8). La platine 40 reste alors immobile, mais l'extrémité du cliquet 102 peut néanmoins glisser le long de la rampe 104, en autorisant le mouvement poursuivi de fermeture de la manette 22. Il en résulte une accumulation d'énergie dans le ressort de rappel 34 de la manette 22 jusqu'à la fin du mouvement de glissement du cliquet 102 sur la rampe 104 (figure 8). Le déplacement final de la manette 22 vers la position de la figure 9 provoque le déverrouillage de la platine 40 après libération du bras 106 par le cliquet 102, suivi de la fermeture brusque du bras de contact 12 sous l'action de la chaîne cinématique. La détente du ressort 34 accélère le franchissement de point mort de la genouillère 28. La vitesse de fermeture du contact mobile 14 est ainsi indépendante de la force d'actionnement de la manette 22._ the circuit breaker is closed by tilting the handle 22 from the left (figure 7) to the right (figure 9). At the start of the closing stroke, the kinematic chain connecting the lever 22 to the plate 40 drives the contact arm 12 to the fixed contact 16. The pawl 102 rotates with the lever 22 clockwise , and approaches the arm 106 for locking the support lever 50, which rotates in the opposite direction. The engagement of the pawl 102 with the ramp 104 of the locking arm 106 stops the rotation of the support lever 50, and maintains the contact piece 14 of the contact arm 12 at a predetermined distance from the fixed contact 16 (FIG. 8). The plate 40 then remains stationary, but the end of the pawl 102 can nevertheless slide along the ramp 104, allowing the continued movement of closing the lever 22. This results in an accumulation of energy in the return spring 34 of handle 22 until the end of the pawl sliding movement 102 on ramp 104 (Figure 8). The final movement of the lever 22 to the position of Figure 9 causes the unlocking of the plate 40 after release of the arm 106 by the pawl 102, followed by the abrupt closure of the contact arm 12 under the action of the kinematic chain. The relaxation of the spring 34 accelerates the crossing of dead center of the toggle joint 28. The closing speed of the movable contact 14 is thus independent of the actuating force of the lever 22.

L'ouverture manuelle du disjonctueur s'opère par un mouvement de basculement inverse de la manette 22 (passage de la figure 9 à la figure 7). Sous l'action de son ressort de rappel 108, le cliquet 102 s'efface et reste en position inactive, de manière à ne pas entraver le libre pivotement de la platine 40 et du levier support 50 dans le sens trigonométrique jusqu'à la position d'ouverture (figure 7).The manual opening of the circuit breaker is effected by a reverse tilting movement of the handle 22 (passage from FIG. 9 to FIG. 7). Under the action of its return spring 108, the pawl 102 disappears and remains in the inactive position, so as not to impede the free pivoting of the plate 40 and the support lever 50 in the counterclockwise direction to the position opening (figure 7).

Claims (10)

1. An operating mechanism of an electrical circuit breaker, having a pair of separable contacts (16, 14), housed in a moulded insulating case (18), and comprising:
- a manual operating handle (22) pivotally mounted on a spindle (24) between an open position O and a closed position F,
- a transmission rod (26) coupled to the handle (22) to form a toggle-joint (28),
- a return spring (34) of the handle (22) to the open position O,
- a plate (40) mounted with rotation on a pivot (42), and having a latching stop (38) cooperating by latching with the free end (37) of the rod (26), so as to form a mechanical link between the handle (22) and the plate (40),
- a trip lever (48) to cause said mechanical link to be interrupted by unlatching the rod (26) and the stop (38), following a fault bringing about automatic tripping of the mechanism (10), independently from the handle (22),
- and an elastic system ensuring contact pressure in the closed position of the contacts (14, 16), and movement of the plate (40) to the open position after tripping has occured, the moving contact (14) being borne by a contact arm (12) made of conducting material, characterized in that the contact arm (12) is securedly attached to an insulating support lever (50) articulated on the pivot (42) of the plate (40), and that the trip lever (48) is pivotally mounted on a spindle (46) fixed to the plate (40), which comprises in addition two-directional means (52) of driving the support lever (50) between the open and closed positions, the assembly being arranged to ensure in the closed position a relative pivoting movement of small amplitude between the plate (40) and the support lever (50) due to a first contact pressure spring (54) belonging to said elastic system.
2. A circuit breaker operating mechanism according to claim 1, characterized in that the insulating support lever (50) is fitted with a blocking arm (106), able to cooperate with a pawl (102) securedly attached to the handle (22), so as to form a high-speed closing device (100) of the contacts (14, 16).
3. A circuit breaker operating mechanism according to claim 2, characterized in that the pawl (102) is pivotally mounted on the spindle (24) of the handle (22), and is associated with a return spring (108) allowing the pawl (102) to retract to an inactive position due to the action of the arm (106) of the support lever (50), so as not to hinder the rotating movement of the plate (40) in the circuit breaker opening direction.
4. A circuit breaker operating mechanism according to claim 2 or 3, characterized in that the blocking arm (106) of the support lever (50) comprises a sloping part (104) cooperating slidingly with the pawl (102) in the closing direction, said sloping part being arranged to temporarily stop the rotating movement of the support lever (50) and of the plate (40) by maintaining the contact part (14) of the contact arm (12) at a preset distance d from the stationary contact (16), and at the same time to allow the movement of the handle (22) to continue to the closed position,retraction of the pawl (102) taking place at the end of closing travel of the handle (22) bringing about unlocking of the plate (40) and high-speed closing of the contacts (14, 16).
5. A circuit breaker operating mechanism according to one of claims 1 to 4, characterized in that the trip lever (48) comprises a first lever arm (62) able to be actuated by the trip release (66, 70, 68) to a tripped position,and a second lever arm (72) able respectively to lock in the charged position the end (37) of the rod (26) against the latching stop (38) and to unlock said end (37) in the tripped position to break the mechanical link between the toggle-joint (28) and the contact arm (12), characterized in that the latching stop (38) is formed by a notch (82) of the plate (40) presenting a sloping part designed to push the end (37) of the rod (26) to a retracted unlatching position, when the trip lever (48) is in the tripped position.
6. A circuit breaker operating mechanism according to claim 5, comprising a magnetothermal trip release formed by a thermal trip release with a bimetallic strip and an electromagnetic trip release with a striker, characterized in that the support lever (50) and the trip lever (48) extend parallel to one another with a transverse offset in relation to the vertical plane passing through the plate (40), and that the first arm (62) of the trip lever (48) protrudes out from the insulating support lever (50) in the direction of the electromagnetic trip release (66), when the circuit breaker is in the closed position,the assembly being arranged so that the striker (64) of the electromagnetic trip release (66) successively drives the trip lever (48) to the tripped position, and the support lever (50) to the separation position of the contacts (14, 16), when the pole current exceeds the tripping threshold of said electromagnetic trip release (66).
7. A circuit breaker operating mechanism according to claim 6, characterized in that the active part of the first arm (62) of the trip lever (48), disposed facing the striker,is slightly convex so that the tripping force exerted by the electromagnetic trip release remains appreciably constant when the trip lever pivots to the tripped position.
8. A circuit breaker operating mechanism according to one of the claims 5 to 7, characterized in that the elastic system comprises a second energy storage spring (58), designed to exert on the plate (40) a torque tending to break said mechanical link (48) in the tripped position of the trip lever (48), and to cause the plate (40) to pivot to the open position of the circuit breaker, and that the second arm (72) of the trip lever (48) is equipped with a step (74) holding the end (37) of the rod (26) against the latching stop (38) when said mechanical link is established, a return spring (76) biasing the trip lever (48) to the charged position.
9. A circuit breaker operating mechanism according to one of the claims 1 to 8,characterized in that the mechanism (10) is made up of two sub-assemblies which can be pre-assembled outside the case (18), the first sub-assembly comprising the plate (40) on which are mounted the support lever (50) of the contact arm (12) and the trip lever (48), the second sub-assembly comprising the handle (22) associated with the transmission rod (26).
10. A circuit breaker operating mechanism according to one of the claims 1 to 9, comprising a mechanical contact position indicator (14, 16), characterized in that said indicator comprises positioning marks on the upper edge of the plate (40), moving facing the inside wall of the front panel (21) of the case (18), which comprises an indicator mark observation window.
EP86402267A 1985-10-31 1986-10-13 Control mechanism for a low-tension electric circuit breaker Expired - Lifetime EP0224396B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86402267T ATE64234T1 (en) 1985-10-31 1986-10-13 CONTROL MECHANISM FOR LOW VOLTAGE BREAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8516344A FR2589627B1 (en) 1985-10-31 1985-10-31 CONTROL MECHANISM FOR LOW VOLTAGE ELECTRIC CIRCUIT BREAKER
FR8516344 1985-10-31

Publications (2)

Publication Number Publication Date
EP0224396A1 EP0224396A1 (en) 1987-06-03
EP0224396B1 true EP0224396B1 (en) 1991-06-05

Family

ID=9324489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402267A Expired - Lifetime EP0224396B1 (en) 1985-10-31 1986-10-13 Control mechanism for a low-tension electric circuit breaker

Country Status (13)

Country Link
US (1) US4740770A (en)
EP (1) EP0224396B1 (en)
JP (1) JP2637081B2 (en)
CN (1) CN1013816B (en)
AT (1) ATE64234T1 (en)
AU (1) AU589856B2 (en)
CA (1) CA1279356C (en)
DE (1) DE3679639D1 (en)
ES (1) ES2022814B3 (en)
FR (1) FR2589627B1 (en)
IN (1) IN168773B (en)
PT (1) PT83627B (en)
ZA (1) ZA867970B (en)

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Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616583B1 (en) * 1987-06-09 1995-01-06 Merlin Gerin CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER
GB8804645D0 (en) * 1988-02-27 1988-03-30 Delta Electrical Holdings Circuit breaker
EP0570647B1 (en) * 1992-05-13 1994-03-02 Hager Electro S.A. Switch latch for a circuit breaker and circuit breakers incorporating it
EP0661724A3 (en) * 1994-01-03 1997-09-10 Omella Eva Munoz New circuit breaking mechanism for electronic devices.
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ES2211852T3 (en) * 1997-09-30 2004-07-16 SIEMENS ENERGY & AUTOMATION, INC. ELECTRICAL CIRCUIT PROTECTION DEVICE THAT HAS ELECTRICAL COMPONENTS UNITED BY ULTRASOUNDS USING AN ALLOY DEBRONCESOLDADURA.
NL1008731C2 (en) 1998-03-27 1999-09-28 Holec Holland Nv Momentary-trigger switch.
ES2256914T3 (en) * 1998-11-19 2006-07-16 Abb Sace S.P.A. MAGNETOTHERMAL SWITCH.
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FR2914485B1 (en) 2007-03-29 2009-04-24 Schneider Electric Ind Sas DEVICE FOR CONTROLLING AN ELECTRICAL PROTECTION APPARATUS AND ELECTRICAL PROTECTION APPARATUS HAVING THE SAME
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FR2961343B1 (en) * 2010-06-15 2012-06-08 Schneider Electric Ind Sas AUXILIARY RELEASE DEVICE FOR ASSOCIATED WITH A CIRCUIT BREAKER.
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Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1393799A (en) * 1971-12-01 1975-05-14 Tokyo Shibaura Electric Co Circuit breaker
US4023127A (en) * 1975-09-11 1977-05-10 Heinemann Electric Company Circuit breaker with contacts which are not engageable when the electrical sensing unit thereof is energized
FR2350679A1 (en) * 1976-05-04 1977-12-02 Merlin Gerin LV circuit breaker - has manual or electromagnetic automatic actuation with plastic hook shaped locking arm linked to control lever
EP0105945A1 (en) * 1982-10-11 1984-04-25 Heinrich Kopp GmbH & Co. KG Electric circuit breaker
DE3335887C2 (en) * 1983-10-03 1986-08-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Switching mechanism for circuit breakers
DE3462562D1 (en) * 1983-12-17 1987-04-09 Lindner Gmbh Protective circuit breaker
IE56136B1 (en) * 1983-12-19 1991-04-24 Westinghouse Electric Corp Circuit breaker with improved cross-bar and contact assembly
US4528531A (en) * 1983-12-19 1985-07-09 Westinghouse Electric Corp. Molded case circuit breaker with improved operating mechanism
US4650944A (en) * 1985-07-18 1987-03-17 Westinghouse Electric Corp. Molded case circuit breaker with an improved operating mechanism having a pivot-transfer trip-free linkage

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CN103077862A (en) * 2013-01-29 2013-05-01 南京因泰莱配电自动化设备有限公司 Manual switching device for circuit breaker of monostable permanent magnetic mechanism
CN103077862B (en) * 2013-01-29 2015-04-08 南京因泰莱配电自动化设备有限公司 Manual switching device for circuit breaker of monostable permanent magnetic mechanism

Also Published As

Publication number Publication date
JPS62105333A (en) 1987-05-15
US4740770A (en) 1988-04-26
ATE64234T1 (en) 1991-06-15
CN1013816B (en) 1991-09-04
AU589856B2 (en) 1989-10-19
ZA867970B (en) 1987-06-24
DE3679639D1 (en) 1991-07-11
IN168773B (en) 1991-06-01
CN86107136A (en) 1987-04-29
PT83627A (en) 1986-11-01
CA1279356C (en) 1991-01-22
PT83627B (en) 1990-06-29
JP2637081B2 (en) 1997-08-06
FR2589627A1 (en) 1987-05-07
ES2022814B3 (en) 1991-12-16
EP0224396A1 (en) 1987-06-03
FR2589627B1 (en) 1988-08-26
AU6449786A (en) 1987-05-07

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