EP1069585A2 - Electromagnetic switch mechanism with manual reset device - Google Patents

Electromagnetic switch mechanism with manual reset device Download PDF

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Publication number
EP1069585A2
EP1069585A2 EP00402024A EP00402024A EP1069585A2 EP 1069585 A2 EP1069585 A2 EP 1069585A2 EP 00402024 A EP00402024 A EP 00402024A EP 00402024 A EP00402024 A EP 00402024A EP 1069585 A2 EP1069585 A2 EP 1069585A2
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EP
European Patent Office
Prior art keywords
rod
cocking
movable
contact
arming
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
EP00402024A
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German (de)
French (fr)
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EP1069585B1 (en
EP1069585A3 (en
Inventor
Jorge Gonzales Ballvey
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Baco Constructions Electriques SA
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Baco Constructions Electriques SA
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Publication of EP1069585A2 publication Critical patent/EP1069585A2/en
Publication of EP1069585A3 publication Critical patent/EP1069585A3/en
Application granted granted Critical
Publication of EP1069585B1 publication Critical patent/EP1069585B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • 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
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement

Definitions

  • the present invention relates to a switch mechanism electromagnetic with manual reset, the triggering of which is controlled by a control voltage associated with an auxiliary circuit which, by lowering below a predetermined threshold, causes automatic disarming and switch continuously until the voltage conditions are restored initials and that the mechanism be reset manually.
  • relays which open the contacts of the main circuit in the event of a voltage drop across them below a certain threshold; it is very often a load located on the conductor of power which directly controls the relay. These relays are activated manually by means of a push button which activates directly the command responsible for the movement of the contacts which causes said relay to self-engage.
  • This type of assembly has two main disadvantages: on the one hand, in the event of switching of currents high, it consumes a lot of energy since it must, through a coil, provide the thrust necessary for the correct functioning of the contacts and, on the other hand, it is bulky and not very compact.
  • the engagement means include a inclined ramp associated with the base and arranged in the path of the rod of armament to mechanically impart to this rod a bending when it is manually pushed into the engaged position.
  • the stem of armament engages, by its lip with the mobile assembly associated with the movable contact and pushes the movable element of the electromagnetic actuator in arming position.
  • the cocking rod is released to return to arming position, it is kept flexed by the movable element of the electromagnetic actuator energized so as to remain engaged with the moving crew associated with the moving contact and thereby pressing the moving contact against fixed contact. This configuration is retained as long as the actuator electromagnetic is energized.
  • this actuator But as soon as the terminal voltage of this actuator drops below the predetermined threshold, the movable element of this actuator is resiliently returned to its disarming position to cause the mobile equipment associated with the mobile contact to stall opposite the hooking lip of the cocking rod. The mobile contact then moves away spontaneously, under the effect of the elastic return means which are associated, fixed contact.
  • the object of the invention is to design a mechanism electromagnetic switch with manual reset, the means of which have a more structural and functional mechanics reliable than that provided for in existing mechanisms.
  • the flexibility of the cocking rod is also a source difficulty: the rod must be flexible enough not to offer too high resistance to sinking which could wear out the prematurely inclined ramp or its own contact surface with this ramp but must be strong enough mechanically not to rupture prematurely in particular by fatigue wear resulting from these repeated bending.
  • the possible wear of the rod and / or the shoulder of the pendulum is thus automatically caught by the stroke of the cocking rod which is not limited.
  • the cocking rod not being deformed, it can be made of a material strong and rigid enough to resist suitably and sustainably to the stresses to which it is subjected during the arming operation.
  • an electromagnetic switch mechanism with manual reset comprises two pairs of contacts 4, 11 closing or opening an electrical circuit on which the mechanism switch is mounted.
  • a fixed contact 4 which is integral with a base 2 associated with the frame of the entire switch mechanism, and a movable contact 11 carried by a support 20 in form of angle iron, one wing of which is itself fixedly mounted on one of the ends of an elastic blade 3 made of sheet steel, the other end of which is fixed based on 2.
  • Each of the two movable contacts 11 is thus movable between a position in which it is in contact with the fixed contact 4 to which it is associated and an open position in which it is moved away from this fixed contact and to which it is recalled elastically under the effect of the inherent elasticity of the arm 3 correspondent.
  • the other wing of the support angle 20 is connected to the corresponding wing of the other support angle 20 which is associated with the other movable contact 11, by a cross member 15.
  • This cross member 15 which thus extends between the two angles of support of the movable contacts 11, forms a pin embodying an axis of pivoting, as will be better explained later.
  • the unitary assembly formed by the two angles 20 associated with the two movable contacts 11 and the cross member 15 which joins these two angles thus forms a moving assembly 28 associated with the moving contacts 11.
  • Arming means are provided to place and maintain the movable contacts 11 in their closed position, against the force of elastic return exerted by the elastically flexible arms 3.
  • arming means comprise an arming rod 8 which is sliding mount on base 2 along an axis substantially perpendicular to that defined by the cross member 15.
  • This cocking rod 8 has one end upper adjacent to the cross member 15, which is provided with a hooking lip 17 suitable for hooking the mobile assembly 20 associated with the mobile contacts 11.
  • a elastic return means 14 recalls the arming rod 8 in a position in which, when the lip 17 of this rod is engaged with the moving element 28 associated with the moving contacts 11, the moving contacts 11 are pressed against the fixed contacts 4 in their closed position at against the elastic return force exerted by the arms 3.
  • the elastic return means of the cocking rod 8 is in this case constituted by a helical spring 14 which surrounds the arming rod 8 and which is supported, on the one hand against the back of the base 2, opposite the fixed contacts 4, and on the other hand against a manual pusher 5 attached to the lower end of the rod 8.
  • the back of the base 2 is further provided with a sheath 29 which hides the spring 14 and into which the manual pusher 8 can sink without game, or with a reduced game.
  • the arming means finally include latching means which ensure the attachment of the lip 17 of the cocking rod 8 with the crew movable 28 associated with movable contacts 11 when the arming rod 8 is thrust, by means of the manual pusher 5 associated therewith, in a position engagement against the return force exerted by the spring 14.
  • These engagement means comprise a pendulum or trigger 12 which is mounted on the journal formed by the cross member 15 of the moving assembly 28 associated with the movable contacts 11 to pivot between an arming position and a disarming position.
  • This pendulum 12 has a shoulder 22 which is able to cooperate with the end 23 of the cocking rod 8 so that the latter, when it is manually pushed into the locked position, forces the pendulum 12 to pivot in its cocking position.
  • the balance 12 also includes a lip 16 which is arranged to take hold with the lip 17 of the cocking rod 8 when the balance is in arming position. Thus, by its lip 16, the balance 12 intervenes in the attachment of the moving assembly 28 associated with the moving contacts 11 to the rod 8.
  • the balance 12 is provided with two parallel and spaced apart arms forming a fork having the function of a lever arm, as will be better explained later.
  • the switch mechanism also includes means for automatic disarming capable of causing the crew to stall mobile 28 associated with mobile contacts 11 vis-à-vis the hooking lip 17 of the arming rod 8 and, consequently, the return of the movable contacts 11 in their open position under the elastic effect of the arms 3.
  • These means of disarming include an electromagnetic actuator in the event of current failure 21.
  • This actuator known in itself, will not be described in all its details. It suffices here to specify that this actuator comprises a housing or receptacle 1 which contains a solenoid 35 of axis A comprising a winding 6 surrounded by a ferromagnetic armature 7 which connects to a fixed ferromagnetic core 13 partially extending inside the winding 6 along the axis A.
  • a core movable ferromagnetic 9 partially extends in the air gap 36 of the solenoid 35 along the axis A, in the extension of the fixed core 13, and can slide at the interior of this solenoid along the axis A between on the one hand a position of disarming in which it is called back in the opposite direction from the fixed core 13 by an associated elastic return means 10, when the voltage across the terminals of the solenoid 35 drops below a predetermined threshold, and on the other hand a arming position close to the fixed core 13, in which it is maintained against the elastic return means 10 associated with it under the effect of the magnetic field generated by the solenoid 35 when it is placed under a voltage higher than said predetermined threshold.
  • the movable ferromagnetic core 9 is presented under the shape of a bar, part of which is inserted in the air gap 36 of the solenoid 35, and the remaining part of which projects from the housing 1 and has two shoulders 25, 26 defining between them a groove 27 in which the two are engaged arm 24 forming a lever arm of the balance wheel 12.
  • the elastic return means of this actuating bar 9 is constituted by a helical spring 10 surrounding this bar and bearing on the one hand against the housing 1 of the actuator electromagnetic 21 and on the other hand against the corresponding shoulder 25 of the bar 9.
  • the axis A of the actuating bar 9 is substantially perpendicular to the cocking rod 8, as well as to the pin 15 embodying the axis pivoting of the balance wheel 12. This arrangement makes it possible to obtain a footprint as small as possible.
  • the fork 24 of the balance 12 is thus coupled to the movable bar 9 of such that the arming and disarming positions of this bar mobile 9 and balance 12 correspond.
  • the arming rod 8 is manually pressed in. against the return force of the spring 14 which comes into contact, by its end 23, against the shoulder 22 of the balance 12, to force, extending its race towards its latching position, the balance 12 to pivot towards its arming position.
  • the pendulum 12 drives, thanks to its fork 24, the actuating bar 9 to its position arming, against the elastic return force of the spring 10.
  • the lip 16 of the pendulum 12 engages with the lip 17 of the cocking rod 8 in a tilting movement.
  • the cocking rod 8 can then be released. Two scenarios are then possible.
  • the release of the cocking rod 8 is accompanied by the return of actuating bar 9 towards its disarming position under the effect of the elastic return force of the spring 10.
  • the actuating bar 9 pushes the fork 24 of the pendulum 12 and forces it to return to its disarming position in which the attachment of the lip 16 of the balance 12 and the lip 17 of the rod 8 is broken.
  • the cocking rod 8 can not drive the moving element 28 and the moving contacts 11 in the closed position and these the latter therefore remain in the open position in which they are kept by the elastic return force exerted by the arms 3.
  • a third case should be considered in the event that the switch mechanism, after being armed manually, is in armed configuration, the movable contacts 11 being in the closed position and the lip 16 of pendulum 12 engaged with lip 17 of cocking rod 8, and where the voltage across the solenoid 35 of the electromagnetic actuator 21 drops below the predetermined threshold.
  • the bar 9 is recalled by the spring 10 in its disarming position and drives in the corresponding position the pendulum 12. In this position disarmament, the lip 16 of the balance 12 emerges from its engagement with the lip 17 of the cocking rod 8 and thereby frees the moving assembly 28 and the mobile contacts 11 which return spontaneously, under the effect of the force of elastic return exerted by the arms 3, in their open position.

Landscapes

  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Electromagnets (AREA)
  • Transmission Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manipulator (AREA)
  • Air Bags (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The electromagnetic switch mechanism has a moving contact (11) mounted on a base (2). A trigger (12) is mounted on the moving contact (10), pivoting between an open and closed position. A shoulder section (22) is manually set to arm the switch. Driving the trigger electromagnetically activates the switch contact (3) through an intermediate section (28).

Description

La présente invention concerne un mécanisme interrupteur électromagnétique à réarmement manuel dont le déclenchement est piloté par une tension de contrôle associée à un circuit annexe qui, en s'abaissant au-dessous d'un seuil prédéterminé, provoque le désarmement automatique et continu de l'interrupteur jusqu'à ce que soient rétablies les conditions de tension initiales et que le mécanisme soit réarmé manuellement.The present invention relates to a switch mechanism electromagnetic with manual reset, the triggering of which is controlled by a control voltage associated with an auxiliary circuit which, by lowering below a predetermined threshold, causes automatic disarming and switch continuously until the voltage conditions are restored initials and that the mechanism be reset manually.

L'on trouve actuellement sur le marché divers mécanismes d'interrupteur qui ferment un circuit électrique lorsque l'utilisateur agit sur un bouton-poussoir, cette action n'étant validée que s'il existe une tension dans le circuit de contrôle annexe. Ce type de mécanisme est très utile pour le contrôle de circuits de puissance sur les mécanismes électriques de sécurité dans lesquels l'utilisateur n'agit pas directement sur le circuit de puissance mais sur un circuit auxiliaire de contrôle.Various switch mechanisms are currently on the market which close an electrical circuit when the user acts on a push button, this action being validated only if there is a voltage in the control circuit Annex. This type of mechanism is very useful for the control of circuits of power on the electrical safety mechanisms in which the user does not act directly on the power circuit but on an auxiliary circuit of control.

Pour éviter ce problème, on utilise des relais qui ouvrent les contacts du circuit principal en cas de chute de la tension qui les traverse au-dessous d'un certain seuil ; c'est très souvent une charge située sur le conducteur de puissance qui contrôle directement le relais. Ces relais sont activés manuellement au moyen d'un bouton-poussoir grâce auquel on actionne directement la commande responsable du mouvement des contacts qui provoque l'auto-enclenchement dudit relais. Ce type de montage présente deux inconvénients principaux : d'une part, en cas de commutation d'intensités élevées, il consomme beaucoup d'énergie puisqu'il doit, par l'intermédiaire d'une bobine, fournir la poussée nécessaire au bon fonctionnement des contacts et, d'autre part, il est volumineux et peu compact.To avoid this problem, relays are used which open the contacts of the main circuit in the event of a voltage drop across them below a certain threshold; it is very often a load located on the conductor of power which directly controls the relay. These relays are activated manually by means of a push button which activates directly the command responsible for the movement of the contacts which causes said relay to self-engage. This type of assembly has two main disadvantages: on the one hand, in the event of switching of currents high, it consumes a lot of energy since it must, through a coil, provide the thrust necessary for the correct functioning of the contacts and, on the other hand, it is bulky and not very compact.

On connaít ainsi en particulier du document FR 2 547 454 un mécanisme interrupteur électromagnétique à réarmement manuel comportant :

  • une base sur laquelle est monté au moins un contact fixe,
  • au moins un contact mobile associé à par un équipage mobile et monté sur la base pour être mobile entre une position d'ouverture et une position de fermeture,
  • un moyen de rappel élastique du contact mobile dans sa position d'ouverture,
  • des moyens d'armement pour placer et maintenir le contact mobile dans sa position de fermeture, ces moyens d'armement comportant une tige d'armement pourvue d'une lèvre d'accrochage de équipage mobile associé au contact mobile, un moyen de rappel élastique de cette tige d'armement dans une position d'armement dans laquelle, lorsque la lèvre de la tige d'armement est en prise avec l'équipage mobile associé au contact mobile, le contact mobile est plaqué contre le contact fixe dans sa position de fermeture à l'encontre de l'effort de rappel élastique exercé par le moyen de rappel qui lui est associé, et des moyens d'enclenchement assurant l'accrochage de la lèvre de la tige d'armement avec l'équipage mobile associé au contact mobile lorsque la tige d'armement est poussée, dans une position d'enclenchement à l'encontre de l'effort de rappel exercé par le moyen de rappel élastique qui lui est associé,
  • des moyens de désarmement automatique pour provoquer le décrochage de l'équipage mobile associé au contact mobile vis-à-vis de la lèvre d'accrochage de la tige d'armement et, partant, le retour du contact mobile dans sa position d'ouverture sous l'effet du moyen de rappel élastique qui lui est associé, ces moyens de désarmement comportant un actionneur électromagnétique à défaut de courant comprenant un élément mobile d'actionnement mobile entre une position de désarmement dans laquelle il est rappelé par un moyen de rappel élastique associé, lorsque la tension aux bornes de l'actionneur électromagnétique descend en dessous d'un seuil prédéterminé pour provoquer le décrochage de l'équipage mobile du contact vis-à-vis de la lèvre d'accrochage de la tige d'armement, et une position d'armement dans laquelle il est placé sous l'effet de la tige d'armement, lorsqu'elle est enfoncée en position d'enclenchement, par l'intermédiaire des moyens d'enclenchement, et dans laquelle il est maintenu à l'encontre des moyens de rappel élastique associés lorsque la tension de l'actionneur électromagnétique est supérieure à un seuil de tension, prédéterminé.
There is thus known in particular from document FR 2 547 454 an electromagnetic switch mechanism with manual reset comprising:
  • a base on which at least one fixed contact is mounted,
  • at least one movable contact associated with a movable assembly and mounted on the base to be movable between an open position and a closed position,
  • a means for elastic return of the movable contact to its open position,
  • arming means for placing and maintaining the movable contact in its closed position, these arming means comprising an arming rod provided with a latching lip for the moving part associated with the movable contact, an elastic return means of this cocking rod in an cocking position in which, when the lip of the cocking rod is in engagement with the moving element associated with the moving contact, the moving contact is pressed against the fixed contact in its position closing against the elastic return force exerted by the return means associated with it, and engagement means ensuring the hooking of the lip of the cocking rod with the moving element associated with the contact movable when the arming rod is pushed into an engagement position against the return force exerted by the elastic return means associated with it,
  • automatic disarming means to bring about the detachment of the mobile assembly associated with the mobile contact with respect to the hooking lip of the arming rod and, consequently, the return of the mobile contact to its open position under the effect of the elastic return means associated with it, these disarming means comprising an electromagnetic actuator in the absence of current comprising a movable actuating element movable between a disarming position in which it is recalled by an elastic return means associated, when the voltage at the terminals of the electromagnetic actuator drops below a predetermined threshold to cause the movable assembly to come off contact with the hooking lip of the cocking rod, and an arming position in which it is placed under the effect of the arming rod, when it is depressed in the latching position, by means of the latching means, and in which it is held against the associated elastic return means when the voltage of the electromagnetic actuator is greater than a predetermined voltage threshold.

Dans ce mécanisme, les moyens d'enclenchement comportent une rampe inclinée associée à la base et disposée sur la trajectoire de la tige d'armement pour imprimer mécaniquement à cette tige une flexion lorsqu'elle est poussée manuellement en position d'enclenchement. En fléchissant, la tige d'armement vient en prise, par sa lèvre avec l'équipage mobile associé au contact mobile et pousse l'élément mobile de l'actionneur électromagnétique en position d'armement. Lorsque la tige d'armement est relâchée pour revenir en position d'armement, elle est maintenue fléchie par l'élément mobile de l'actionneur électromagnétique sous tension de manière à rester en prise avec l'équipage mobile associé au contact mobile et à plaquer ainsi le contact mobile contre le contact fixe. Cette configuration est conservée tant que l'actionneur électromagnétique se trouve sous tension. Mais dès que la tension aux bornes de cet actionneur descend en dessous du seuil prédéterminé, l'élément mobile de cet actionneur est rappelé élastiquement vers sa position de désarmement pour provoquer le décrochage de l'équipage mobile associé au contact mobile vis-à-vis de la lèvre d'accrochage de la tige d'armement. Le contact mobile s'écarte alors spontanément, sous l'effet des moyens de rappel élastique qui lui sont associés, du contact fixe.In this mechanism, the engagement means include a inclined ramp associated with the base and arranged in the path of the rod of armament to mechanically impart to this rod a bending when it is manually pushed into the engaged position. By bending, the stem of armament engages, by its lip with the mobile assembly associated with the movable contact and pushes the movable element of the electromagnetic actuator in arming position. When the cocking rod is released to return to arming position, it is kept flexed by the movable element of the electromagnetic actuator energized so as to remain engaged with the moving crew associated with the moving contact and thereby pressing the moving contact against fixed contact. This configuration is retained as long as the actuator electromagnetic is energized. But as soon as the terminal voltage of this actuator drops below the predetermined threshold, the movable element of this actuator is resiliently returned to its disarming position to cause the mobile equipment associated with the mobile contact to stall opposite the hooking lip of the cocking rod. The mobile contact then moves away spontaneously, under the effect of the elastic return means which are associated, fixed contact.

Ce type de mécanisme offre satisfaction sur le plan théorique. Il permet en effet de résoudre les deux inconvénients principaux relatifs à la consommation d'énergie et à l'encombrement mentionnés précédemment. Cependant, d'un point de vue pratique, la forme de réalisation des moyens d'enclenchement avec une tige d'armement flexible coopérant avec une rampe inclinée ne donne pas entière satisfaction quant à sa fiabilité. Il se produit en effet, à l'usage, une usure des surfaces en frottement de la tige et de la rampe inclinée qui risque d'entraíner des dysfonctionnements. De plus, il est nécessaire de prévoir des moyens de réglage de la rampe inclinée pour ajuster la position d'enclenchement fléchie de la tige d'armement, aussi bien lors de la fabrication du mécanisme qu'à l'occasion d'une opération de maintenance ultérieure visant à prendre en compte les éventuelles dérives dues à l'usure. Il en résulte en particulier une complexité accrue et, partant, un surcoût dans la fabrication du mécanisme.This type of mechanism offers satisfaction on a theoretical level. It allows indeed to resolve the two main drawbacks relating to the energy consumption and size mentioned above. However, from a practical point of view, the embodiment of the means of engagement with a flexible cocking rod cooperating with a ramp inclined does not give complete satisfaction with its reliability. It occurs in effect, in use, of wear on the friction surfaces of the rod and of the ramp tilted which may cause malfunctions. In addition, it is necessary to provide means for adjusting the inclined ramp to adjust the position flexed engagement of the arming rod, both during manufacturing of the mechanism only during a subsequent maintenance operation aimed at to take into account any drifts due to wear. This results in particular increased complexity and therefore an additional cost in the manufacture of mechanism.

Dans ce contexte, le but de l'invention est de concevoir un mécanisme interrupteur électromagnétique à réarmement manuel, dont les moyens d'enclenchement présentent une mécanique structurelle et fonctionnelle plus fiable que celle prévue dans les mécanismes existants. In this context, the object of the invention is to design a mechanism electromagnetic switch with manual reset, the means of which have a more structural and functional mechanics reliable than that provided for in existing mechanisms.

En vue de la réalisation de ce but, on prévoit selon l'invention un mécanisme interrupteur électromagnétique à réarmement manuel du type précité, dans lequel les moyens d'enclenchement comportent un balancier ou gâchette qui est monté sur l'équipage mobile associé au contact mobile pour pivoter entre une position d'armement et une position de désarmement et qui possède :

  • un épaulement apte à coopérer avec l'extrémité de la tige d'armement de telle manière que cette dernière, lorsqu'elle est enfoncée manuellement en position d'enclenchement, force le balancier à pivoter dans sa position d'armement,
  • une lèvre agencée pour prendre prise avec la lèvre de la tige d'armement lorsque le balancier est en position d'armement,
  • un bras de levier attelé à l'élément mobile de l'actionneur électromagnétique de telle manière que les positions d'armement et de désarmement de l'élément mobile et du balancier se correspondent.
In order to achieve this goal, there is provided according to the invention an electromagnetic switch mechanism with manual reset of the aforementioned type, in which the engagement means comprise a balance or trigger which is mounted on the moving element associated with the moving contact to pivot between an arming position and a disarming position and which has:
  • a shoulder capable of cooperating with the end of the cocking rod so that the latter, when it is manually pressed in the engaged position, forces the balance to pivot in its cocking position,
  • a lip arranged to take hold with the lip of the cocking rod when the balance is in the cocking position,
  • a lever arm coupled to the mobile element of the electromagnetic actuator in such a way that the arming and disarming positions of the mobile element and of the pendulum correspond.

D'autre part, la flexibilité de la tige d'armement est également une source de difficulté : la tige doit être suffisamment flexible pour ne pas offrir une résistance trop grande à l'enfoncement qui risquait d'user prématurément la rampe inclinée ou sa propre surface de contact avec cette rampe mais doit être suffisamment résistante mécaniquement pour ne pas se rompre prématurément notamment par une usure en fatigue résultant de ces flexions répétées.On the other hand, the flexibility of the cocking rod is also a source difficulty: the rod must be flexible enough not to offer too high resistance to sinking which could wear out the prematurely inclined ramp or its own contact surface with this ramp but must be strong enough mechanically not to rupture prematurely in particular by fatigue wear resulting from these repeated bending.

Grâce à cet agencement mécanique selon l'invention, aucune pièce (autre que les moyens de rappel élastique) n'est soumise à la flexion ni même à une quelconque déformation, si bien qu'aucun risque de rupture par fatigue n'est à craindre. De plus, les frottements sont limités à ceux intervenant entre la tige d'armement et l'épaulement du balancier ; ces frottements sont très limités dans leur ampleur et n'ont aucun caractère fonctionnel puisque seul compte dans l'opération d'armement du mécanisme le pivotement convenable du balancier. D'ailleurs, même en cas d'usure, des surfaces de contact de l'épaulement du balancier et de la tige d'armement, l'armement convenable du mécanisme est obtenu par un enfoncement plus ou moins prononcé de la tige d'armement qui, en tout état de cause, place le balancier en butée dans sa position d'armement. L'usure éventuelle de la tige et/ou de l'épaulement du balancier est ainsi automatiquement rattrapée par la course de la tige d'armement qui n'est pas limitée. En outre, la tige d'armement n'étant pas amenée à se déformer, elle peut être réalisée en un matériau suffisamment résistant et rigide pour résister convenablement et durablement aux sollicitations auxquelles elle est soumise lors de l'opération d'armement.Thanks to this mechanical arrangement according to the invention, no part (other than elastic return means) is not subjected to bending or even to any deformation, so there is no risk of fatigue failure to fear. In addition, friction is limited to that occurring between the rod arm and shoulder of the pendulum; these frictions are very limited in their scope and have no functional character since only counts in the arming operation of the mechanism the proper pivoting of the pendulum. Moreover, even in the event of wear, the contact surfaces of the shoulder of the pendulum and cocking rod, the proper cocking of the mechanism is obtained by a more or less pronounced depression of the cocking rod which, in any event, place the balance in abutment in its cocking position. The possible wear of the rod and / or the shoulder of the pendulum is thus automatically caught by the stroke of the cocking rod which is not limited. In addition, the cocking rod not being deformed, it can be made of a material strong and rigid enough to resist suitably and sustainably to the stresses to which it is subjected during the arming operation.

Par ailleurs, le fait que, lors de l'enclenchement, le balancier s'engage avec la tige d'armement par basculement permet un décrochage plus sûr de sa lèvre avec la lèvre correspondante de la tige d'armement. Inversement, pour des raisons symétriques, le désarmement automatique du mécanisme par basculement en sens inverse du balancier est obtenu avec une grande sécurité de fonctionnement, dans la mesure où dans sa position de désarmement, la lèvre du balancier n'offre aucune prise à celle de la tige d'armement.Furthermore, the fact that, during engagement, the pendulum engages with the tilting cocking rod allows a safer release of its lip with the corresponding lip of the cocking rod. Conversely, for symmetrical reasons, the automatic disarming of the mechanism by tilting in the opposite direction of the pendulum is achieved with great safety operating, insofar as in its disarming position, the the pendulum lip offers no grip on that of the cocking rod.

D'autres caractéristiques et avantages de l'invention apparaítront à la lecture de la description qui suit d'un mode de réalisation en particulier de l'invention, donné à titre d'exemple non limitatif.Other characteristics and advantages of the invention will appear on reading the following description of a particular embodiment of the invention, given by way of nonlimiting example.

Il sera fait référence aux dessins en annexe, parmi lesquels :

  • la figure 1 est une vue en perspective du mécanisme selon l'invention ;
  • la figure 2 est une vue en coupe longitudinale du même mécanisme ;
  • la figure 3 est une vue en plan du même mécanisme.
Reference will be made to the accompanying drawings, among which:
  • Figure 1 is a perspective view of the mechanism according to the invention;
  • Figure 2 is a longitudinal sectional view of the same mechanism;
  • Figure 3 is a plan view of the same mechanism.

En référence aux figures, un mécanisme interrupteur électromagnétique à réarmement manuel conforme à l'invention comporte deux paires de contacts 4, 11 fermant ou ouvrant un circuit électrique sur lequel le mécanisme interrupteur est monté. Dans chacune de ces paires de contacts, on distingue un contact fixe 4 qui est solidaire d'une base 2 associée au bâti de l'ensemble du mécanisme interrupteur, et un contact mobile 11 porté par un support 20 en forme de cornière dont une aile est elle-même montée fixe sur l'une des extrémités d'une lame élastique 3 en tôle d'acier dont l'autre extrémité est fixée sur la base 2.Referring to the figures, an electromagnetic switch mechanism with manual reset according to the invention comprises two pairs of contacts 4, 11 closing or opening an electrical circuit on which the mechanism switch is mounted. In each of these pairs of contacts, there is a fixed contact 4 which is integral with a base 2 associated with the frame of the entire switch mechanism, and a movable contact 11 carried by a support 20 in form of angle iron, one wing of which is itself fixedly mounted on one of the ends of an elastic blade 3 made of sheet steel, the other end of which is fixed based on 2.

Chacun des deux contacts mobiles 11 est ainsi mobile entre une position de fermeture dans laquelle il est au contact du contact fixe 4 auquel il est associé et une position d'ouverture dans laquelle il est écarté de ce contact fixe et à laquelle il est rappelé élastiquement sous l'effet de l'élasticité propre du bras 3 correspondant. Each of the two movable contacts 11 is thus movable between a position in which it is in contact with the fixed contact 4 to which it is associated and an open position in which it is moved away from this fixed contact and to which it is recalled elastically under the effect of the inherent elasticity of the arm 3 correspondent.

L'autre aile de la cornière de support 20 est reliée à l'aile correspondante de l'autre cornière de support 20 qui est associée à l'autre contact mobile 11, par une traverse 15. Cette traverse 15 qui s'étend ainsi entre les deux cornières de support des contacts mobiles 11, forme un tourillon matérialisant un axe de pivotement, comme cela sera mieux expliqué ultérieurement.The other wing of the support angle 20 is connected to the corresponding wing of the other support angle 20 which is associated with the other movable contact 11, by a cross member 15. This cross member 15 which thus extends between the two angles of support of the movable contacts 11, forms a pin embodying an axis of pivoting, as will be better explained later.

L'ensemble unitaire formé par les deux cornières 20 associées aux deux contacts mobiles 11 et la traverse 15 qui réunit ces deux cornières forme ainsi un équipage mobile 28 associé aux contacts mobiles 11.The unitary assembly formed by the two angles 20 associated with the two movable contacts 11 and the cross member 15 which joins these two angles thus forms a moving assembly 28 associated with the moving contacts 11.

Des moyens d'armement sont prévus pour placer et maintenir les contacts mobiles 11 dans leur position de fermeture, à l'encontre de l'effort de rappel élastique exercé par les bras élastiquement flexibles 3.Arming means are provided to place and maintain the movable contacts 11 in their closed position, against the force of elastic return exerted by the elastically flexible arms 3.

Ces moyens d'armement comportent une tige d'armement 8 qui est montée coulissante sur la base 2 suivant un axe sensiblement perpendiculaire à celui défini par la traverse 15. Cette tige d'armement 8 possède une extrémité supérieure voisine de la traverse 15, qui est pourvue d'une lèvre d'accrochage 17 apte à accrocher l'équipage mobile 20 associé aux contacts mobiles 11. Un moyen de rappel élastique 14 rappelle la tige d'armement 8 dans une position d'armement dans laquelle, lorsque la lèvre 17 de cette tige est en prise avec l'équipage mobile 28 associé aux contacts mobiles 11, les contacts mobiles 11 sont plaqués contre les contacts fixes 4 dans leur position de fermeture à l'encontre de l'effort de rappel élastique exercé par les bras 3. Plus précisément, le moyen de rappel élastique de la tige d'armement 8 est en l'espèce constitué par un ressort hélicoïdal 14 qui entoure la tige d'armement 8 et qui prend appui, d'une part contre le dos de la base 2, à l'opposé des contacts fixes 4, et d'autre part contre un poussoir manuel 5 rapporté sur l'extrémité inférieure de la tige d'armement 8. Le dos de la base 2 est en outre pourvu d'un fourreau 29 qui masque le ressort 14 et dans lequel le poussoir manuel 8 peut s'enfoncer sans jeu, ou avec un jeu réduit.These arming means comprise an arming rod 8 which is sliding mount on base 2 along an axis substantially perpendicular to that defined by the cross member 15. This cocking rod 8 has one end upper adjacent to the cross member 15, which is provided with a hooking lip 17 suitable for hooking the mobile assembly 20 associated with the mobile contacts 11. A elastic return means 14 recalls the arming rod 8 in a position in which, when the lip 17 of this rod is engaged with the moving element 28 associated with the moving contacts 11, the moving contacts 11 are pressed against the fixed contacts 4 in their closed position at against the elastic return force exerted by the arms 3. More precisely, the elastic return means of the cocking rod 8 is in this case constituted by a helical spring 14 which surrounds the arming rod 8 and which is supported, on the one hand against the back of the base 2, opposite the fixed contacts 4, and on the other hand against a manual pusher 5 attached to the lower end of the rod 8. The back of the base 2 is further provided with a sheath 29 which hides the spring 14 and into which the manual pusher 8 can sink without game, or with a reduced game.

Les moyens d'armement comportent enfin des moyens d'enclenchement qui assurent l'accrochage de la lèvre 17 de la tige d'armement 8 avec l'équipage mobile 28 associé aux contacts mobiles 11 lorsque la tige d'armement 8 est poussée, au moyen du poussoir manuel 5 qui lui est associé, dans une position d'enclenchement à l'encontre de l'effort de rappel exercé par le ressort 14. The arming means finally include latching means which ensure the attachment of the lip 17 of the cocking rod 8 with the crew movable 28 associated with movable contacts 11 when the arming rod 8 is thrust, by means of the manual pusher 5 associated therewith, in a position engagement against the return force exerted by the spring 14.

Ces moyens d'enclenchement comportent un balancier ou gâchette 12 qui est monté sur le tourillon formé par la traverse 15 de l'équipage mobile 28 associé aux contacts mobiles 11 pour pivoter entre une positon d'armement et une position de désarmement.These engagement means comprise a pendulum or trigger 12 which is mounted on the journal formed by the cross member 15 of the moving assembly 28 associated with the movable contacts 11 to pivot between an arming position and a disarming position.

Ce balancier 12 comporte un épaulement 22 qui est apte à coopérer avec l'extrémité 23 de la tige d'armement 8 de telle manière que cette dernière, lorsqu'elle est enfoncée manuellement en position d'enclenchement, force le balancier 12 à pivoter dans sa position d'armement.This pendulum 12 has a shoulder 22 which is able to cooperate with the end 23 of the cocking rod 8 so that the latter, when it is manually pushed into the locked position, forces the pendulum 12 to pivot in its cocking position.

Le balancier 12 comporte par ailleurs une lèvre 16 qui est agencée pour prendre prise avec la lèvre 17 de la tige d'armement 8 lorsque le balancier est en position d'armement. Ainsi, par sa lèvre 16, le balancier 12 intervient dans l'accrochage de l'équipage mobile 28 associé aux contacts mobiles 11 à la tige d'armement 8.The balance 12 also includes a lip 16 which is arranged to take hold with the lip 17 of the cocking rod 8 when the balance is in arming position. Thus, by its lip 16, the balance 12 intervenes in the attachment of the moving assembly 28 associated with the moving contacts 11 to the rod 8.

Enfin, le balancier 12 est pourvu de deux bras parallèles et écartés formant une fourche ayant une fonction de bras de levier, comme cela sera mieux expliqué ultérieurement.Finally, the balance 12 is provided with two parallel and spaced apart arms forming a fork having the function of a lever arm, as will be better explained later.

Le mécanisme interrupteur comporte par ailleurs des moyens de désarmement automatiques aptes à provoquer le décrochage de l'équipage mobile 28 associé aux contacts mobiles 11 vis-à-vis de la lèvre d'accrochage 17 de la tige d'armement 8 et, partant, le retour des contacts mobiles 11 dans leur position d'ouverture sous l'effet élastique des bras 3. Ces moyens de désarmement comportent un actionneur électromagnétique à défaut de courant 21. Cet actionneur, connu en lui-même, ne sera pas décrit dans tous ses détails. Il suffit ici de préciser que cet actionneur comporte un boítier ou réceptacle 1 qui renferme un solénoïde 35 d'axe A comprenant un enroulement 6 entouré d'une armature 7 ferromagnétique qui se raccorde à un noyau ferromagnétique fixe 13 s'étendant partiellement à l'intérieur de l'enroulement 6 suivant l'axe A. Un noyau ferromagnétique mobile 9 s'étend partiellement dans l'entrefer 36 du solénoïde 35 suivant l'axe A, dans le prolongement du noyau fixe 13, et peut coulisser à l'intérieur de ce solénoïde suivant l'axe A entre d'une part une position de désarmement dans laquelle il est rappelé en direction opposée du noyau fixe 13 par un moyen de rappel élastique associé 10, lorsque la tension aux bornes du solénoïde 35 descend en dessous d'un seuil prédéterminé, et d'autre part une position d'armement rapprochée du noyau fixe 13, dans laquelle il est maintenu à l'encontre des moyens de rappel élastique 10 qui lui sont associés sous l'effet du champ magnétique généré par le solénoïde 35 lorsqu'il est placé sous une tension supérieure audit seuil prédéterminé.The switch mechanism also includes means for automatic disarming capable of causing the crew to stall mobile 28 associated with mobile contacts 11 vis-à-vis the hooking lip 17 of the arming rod 8 and, consequently, the return of the movable contacts 11 in their open position under the elastic effect of the arms 3. These means of disarming include an electromagnetic actuator in the event of current failure 21. This actuator, known in itself, will not be described in all its details. It suffices here to specify that this actuator comprises a housing or receptacle 1 which contains a solenoid 35 of axis A comprising a winding 6 surrounded by a ferromagnetic armature 7 which connects to a fixed ferromagnetic core 13 partially extending inside the winding 6 along the axis A. A core movable ferromagnetic 9 partially extends in the air gap 36 of the solenoid 35 along the axis A, in the extension of the fixed core 13, and can slide at the interior of this solenoid along the axis A between on the one hand a position of disarming in which it is called back in the opposite direction from the fixed core 13 by an associated elastic return means 10, when the voltage across the terminals of the solenoid 35 drops below a predetermined threshold, and on the other hand a arming position close to the fixed core 13, in which it is maintained against the elastic return means 10 associated with it under the effect of the magnetic field generated by the solenoid 35 when it is placed under a voltage higher than said predetermined threshold.

En l'espèce, le noyau ferromagnétique mobile 9 se présente sous la forme d'un barreau dont une partie est insérée dans l'entrefer 36 du solénoïde 35, et dont la partie restante fait saillie du boítier 1 et présente deux épaulements 25, 26 définissant entre eux une gorge 27 dans laquelle sont engagés les deux bras 24 formant bras de levier du balancier 12. Le moyen de rappel élastique de ce barreau d'actionnement 9 est constitué par un ressort hélicoïdal 10 entourant ce barreau et prenant appui d'une part contre le boítier 1 de l'actionneur électromagnétique 21 et d'autre part contre l'épaulement correspondant 25 du barreau 9.In this case, the movable ferromagnetic core 9 is presented under the shape of a bar, part of which is inserted in the air gap 36 of the solenoid 35, and the remaining part of which projects from the housing 1 and has two shoulders 25, 26 defining between them a groove 27 in which the two are engaged arm 24 forming a lever arm of the balance wheel 12. The elastic return means of this actuating bar 9 is constituted by a helical spring 10 surrounding this bar and bearing on the one hand against the housing 1 of the actuator electromagnetic 21 and on the other hand against the corresponding shoulder 25 of the bar 9.

En outre, l'axe A du barreau d'actionnement 9 est sensiblement perpendiculaire à la tige d'armement 8, ainsi qu'au tourillon 15 matérialisant l'axe de pivotement du balancier 12. Cet agencement permet d'obtenir un encombrement aussi réduit que possible.In addition, the axis A of the actuating bar 9 is substantially perpendicular to the cocking rod 8, as well as to the pin 15 embodying the axis pivoting of the balance wheel 12. This arrangement makes it possible to obtain a footprint as small as possible.

La fourche 24 du balancier 12 est ainsi attelée au barreau mobile 9 de telle manière que les positions d'armement et de désarmement de ce barreau mobile 9 et du balancier 12 se correspondent.The fork 24 of the balance 12 is thus coupled to the movable bar 9 of such that the arming and disarming positions of this bar mobile 9 and balance 12 correspond.

Ainsi, à l'armement, la tige d'armement 8 est enfoncée manuellement à l'encontre de l'effort de rappel du ressort 14 qui vient en contact, par son extrémité 23, contre l'épaulement 22 du balancier 12, pour forcer, en prolongeant sa course vers sa position d'enclenchement, le balancier 12 à pivoter vers sa position d'armement. En pivotant vers sa position d'armement, le balancier 12 entraíne, grâce à sa fourche 24, le barreau d'actionnement 9 vers sa position d'armement, à l'encontre de l'effort de rappel élastique du ressort 10.Thus, when arming, the arming rod 8 is manually pressed in. against the return force of the spring 14 which comes into contact, by its end 23, against the shoulder 22 of the balance 12, to force, extending its race towards its latching position, the balance 12 to pivot towards its arming position. By pivoting to its cocking position, the pendulum 12 drives, thanks to its fork 24, the actuating bar 9 to its position arming, against the elastic return force of the spring 10.

Parallèlement, la lèvre 16 du balancier 12 vient en prise avec la lèvre 17 de la tige d'armement 8 dans un mouvement de basculement.At the same time, the lip 16 of the pendulum 12 engages with the lip 17 of the cocking rod 8 in a tilting movement.

La tige d'armement 8 peut alors être relâchée. Deux cas de figures sont alors envisageables.The cocking rod 8 can then be released. Two scenarios are then possible.

Lorsque la tension aux bornes du le solénoïde 35 de l'actionneur électromagnétique 21 est supérieure au seuil de tension prédéterminé, le bras d'actionnement 9 est maintenu dans sa position d'armement par le champ magnétique généré par ce solénoïde, à l'encontre de l'effort de rappel élastique exercé par le ressort 10. La tige 8, ainsi maintenue en prise avec le balancier 12 et, partant, l'équipage mobile 28 associé aux contacts mobiles 11, entraíne, sous l'effet de l'effort de rappel élastique exercé par le ressort 14 qui lui est associé, l'équipage mobile 28 et les contacts mobiles 11 en position de fermeture. On notera à cet égard que, pour ce faire, l'effort de rappel exercé par le ressort 14 doit être supérieur à celui exercé par les bras élastiques 3.When the voltage across the actuator solenoid 35 electromagnetic 21 is above the predetermined voltage threshold, the arm 9 is kept in its arming position by the field magnetic generated by this solenoid, against the elastic return force exerted by the spring 10. The rod 8, thus held in engagement with the balance 12 and, therefore, the moving element 28 associated with the moving contacts 11, drives, under the effect of the elastic return force exerted by the spring 14 which is associated with it, the moving element 28 and the moving contacts 11 in the closed position. We note in this regard that, to do this, the return force exerted by the spring 14 must be greater than that exerted by the elastic arms 3.

En revanche, dans l'hypothèse où la tension aux bornes du solénoïde 35 de l'actionneur électromagnétique 21 descend sous le seuil de tension prédéterminé, le relâchement de la tige d'armement 8 est accompagné du retour de barreau d'actionnement 9 vers sa position de désarmement sous l'effet de l'effort de rappel élastique du ressort 10. En retournant ainsi vers sa position de désarmement, le barreau d'actionnement 9 repousse la fourche 24 du balancier 12 et force celui-ci à revenir dans sa position de désarmement dans laquelle l'accrochage de la lèvre 16 du balancier 12 et de la lèvre 17 de la tige d'armement 8 est rompu. La tige d'armement 8 ne peut donc pas entraíner l'équipage mobile 28 et les contacts mobiles 11 en position de fermeture et ces derniers restent donc en position d'ouverture dans laquelle ils sont maintenus par l'effort de rappel élastique exercé par les bras 3.On the other hand, if the voltage across the terminals of the solenoid 35 of the electromagnetic actuator 21 drops below the voltage threshold predetermined, the release of the cocking rod 8 is accompanied by the return of actuating bar 9 towards its disarming position under the effect of the elastic return force of the spring 10. Thus returning to its position of disarming, the actuating bar 9 pushes the fork 24 of the pendulum 12 and forces it to return to its disarming position in which the attachment of the lip 16 of the balance 12 and the lip 17 of the rod 8 is broken. The cocking rod 8 can not drive the moving element 28 and the moving contacts 11 in the closed position and these the latter therefore remain in the open position in which they are kept by the elastic return force exerted by the arms 3.

Enfin, un troisième cas de figure doit être envisagé dans l'hypothèse où le mécanisme interrupteur, après avoir été armé manuellement, se trouve en configuration armée, les contacts mobiles 11 étant en position de fermeture et la lèvre 16 du balancier 12 en prise avec la lèvre 17 de la tige d'armement 8, et où la tension aux bornes du solénoïde 35 de l'actionneur électromagnétique 21 descend en dessous du seuil prédéterminé. Dans ce cas, le barreau d'actionnement 9 est rappelé par le ressort 10 dans sa position de désarmement et entraíne dans la position correspondante le balancier 12. Dans cette position de désarmement, la lèvre 16 du balancier 12 se dégage de sa prise avec la lèvre 17 de la tige d'armement 8 et libère de ce fait l'équipage mobile 28 et les contacts mobiles 11 qui reviennent spontanément, sous l'effet de l'effort de rappel élastique exercé par les bras 3, dans leur position d'ouverture.Finally, a third case should be considered in the event that the switch mechanism, after being armed manually, is in armed configuration, the movable contacts 11 being in the closed position and the lip 16 of pendulum 12 engaged with lip 17 of cocking rod 8, and where the voltage across the solenoid 35 of the electromagnetic actuator 21 drops below the predetermined threshold. In this case, the bar 9 is recalled by the spring 10 in its disarming position and drives in the corresponding position the pendulum 12. In this position disarmament, the lip 16 of the balance 12 emerges from its engagement with the lip 17 of the cocking rod 8 and thereby frees the moving assembly 28 and the mobile contacts 11 which return spontaneously, under the effect of the force of elastic return exerted by the arms 3, in their open position.

Claims (7)

Mécanisme interrupteur électromagnétique à réarmement manuel comportant : une base (2) sur laquelle est monté au moins un contact fixe (4), au moins un contact mobile (11) associé à par un équipage mobile (28) et monté sur la base (2) pour être mobile entre une position d'ouverture et une position de fermeture, un moyen de rappel élastique (3) du contact mobile dans sa position d'ouverture, des moyens d'armement pour placer et maintenir le contact mobile (11) dans sa position de fermeture, ces moyens d'armement comportant une tige d'armement (8) pourvue d'une lèvre (17) d'accrochage de l'équipage mobile (28) associé au contact mobile (11), un moyen de rappel élastique (14) de cette tige d'armement dans une position d'armement dans laquelle, lorsque la lèvre (17) de la tige d'armement (8) est en prise avec l'équipage mobile (28) associé au contact mobile (11), le contact mobile (11) est plaqué contre le contact fixe (4) dans sa position de fermeture à l'encontre de l'effort de rappel élastique exercé par le moyen de rappel (3) qui lui est associé, et des moyens d'enclenchement assurant l'accrochage de la lèvre (17) de la tige d'armement (8) avec l'équipage mobile (28) associé au contact mobile (11) lorsque la tige d'armement (8) est poussée, dans une position d'enclenchement à l'encontre de l'effort de rappel exercé par le moyen de rappel élastique (14) qui lui est associé, des moyens de désarmement automatique pour provoquer le décrochage de l'équipage mobile (28) associé au contact mobile (11) vis-à-vis de la lèvre d'accrochage (17) de la tige d'armement (8) et, partant, le retour du contact mobile (11) dans sa position d'ouverture sous l'effet du moyen de rappel élastique (3) qui lui est associé, ces moyens de désarmement comportant un actionneur électromagnétique à défaut de courant (21) comprenant un élément mobile d'actionnement (9) mobile entre une position de désarmement dans laquelle il est rappelé par un moyen de rappel élastique associé (10), lorsque la tension aux bornes de l'actionneur électromagnétique (21) descend en dessous d'un seuil prédéterminé pour provoquer le décrochage de l'équipage mobile (28) du contact mobile (11) vis-à-vis de la lèvre d'accrochage (17) de la tige d'armement (8), et une position d'armement dans laquelle il est placé sous l'effet de la tige d'armement (8), lorsqu'elle est enfoncée en position d'enclenchement, par l'intermédiaire des moyens d'enclenchement, et dans laquelle il est maintenu à l'encontre des moyens de rappel élastique (10) associés lorsque la tension de l'actionneur électromagnétique (21) est supérieure à un seuil de tension prédéterminé. caractérisé en ce que les moyens d'enclenchement comportent un balancier ou gâchette (12) qui est monté sur l'équipage mobile (28) associé au contact mobile (11) pour pivoter entre une position d'armement et une position de désarmement et qui possède : un épaulement (22) apte à coopérer avec l'extrémité (23) de la tige d'armement (8) de telle manière que cette dernière, lorsqu'elle est enfoncée manuellement en position d'enclenchement, force le balancier (12) à pivoter dans sa position d'armement, une lèvre (16) agencée pour prendre prise avec la lèvre (17) de la tige d'armement (8) lorsque le balancier (12) est en position d'armement, un bras de levier (24) attelé à l'élément mobile (9) de l'actionneur électromagnétique (21) de telle manière que les positions d'armement et de désarmement de l'élément mobile (9) et du balancier (12) se correspondent. Electromagnetic manual reset mechanism comprising: a base (2) on which is mounted at least one fixed contact (4), at least one movable contact (11) associated with by a movable assembly (28) and mounted on the base (2) to be movable between an open position and a closed position, an elastic return means (3) of the movable contact in its open position, arming means for placing and maintaining the movable contact (11) in its closed position, these arming means comprising an arming rod (8) provided with a lip (17) for hooking the crew movable (28) associated with the movable contact (11), an elastic return means (14) of this cocking rod in a cocking position in which, when the lip (17) of the cocking rod (8) is engaged with the mobile assembly (28) associated with the mobile contact (11), the mobile contact (11) is pressed against the fixed contact (4) in its closed position against the elastic return force exerted by the return means (3) associated therewith, and latching means ensuring the attachment of the lip (17) of the cocking rod (8) with the movable assembly (28) associated with the contact movable (11) when the cocking rod (8) is pushed into an engagement position against the return force exerted by the elastic return means (14) associated with it, automatic disarming means to bring about the detachment of the movable assembly (28) associated with the movable contact (11) with respect to the latching lip (17) of the arming rod (8) and, consequently , the return of the movable contact (11) to its open position under the effect of the elastic return means (3) associated therewith, these disarming means comprising an electromagnetic actuator in the absence of current (21) comprising an element actuating mobile (9) mobile between a disarming position in which it is recalled by an associated elastic return means (10), when the voltage across the terminals of the electromagnetic actuator (21) drops below a predetermined threshold to cause the movable assembly (28) to detach from the movable contact (11) with respect to the hooking lip (17) of the cocking rod (8), and a cocking position in which it is placed under the effect of the cocking rod (8), when it is pressed in latching position, by latching means, and in which it is held against the elastic return means (10) associated when the voltage of the electromagnetic actuator (21) is above a threshold of predetermined voltage. characterized in that the latching means comprise a balance or trigger (12) which is mounted on the movable assembly (28) associated with the movable contact (11) to pivot between an arming position and a disarming position and which possesses : a shoulder (22) able to cooperate with the end (23) of the cocking rod (8) in such a way that the latter, when it is manually pressed in the engaged position, forces the balance (12) to pivot in its arming position, a lip (16) arranged to take hold with the lip (17) of the cocking rod (8) when the balance (12) is in the cocking position, a lever arm (24) coupled to the mobile element (9) of the electromagnetic actuator (21) in such a way that the arming and disarming positions of the mobile element (9) and of the balance (12) correspond. Mécanisme selon la revendication 1, dans lequel l'élément d'actionnement (9) de l'actionneur électromagnétique (21) est constitué par un barreau (9) en matériau ferromagnétique formant un noyau partiellement inséré dans l'entrefer (36) d'un solénoïde (35) appartenant audit actionneur électromagnétique.Mechanism according to claim 1, wherein the element actuator (9) of the electromagnetic actuator (21) consists of a bar (9) of ferromagnetic material forming a partially inserted core in the air gap (36) of a solenoid (35) belonging to said actuator electromagnetic. Mécanisme selon la revendication 2, dans lequel le barreau d'actionnement (9) présente deux épaulements (25, 26) définissant entre eux une gorge (27) dans laquelle sont engagés les deux bras (24) d'une fourche qui, ménagée sur le balancier (12), forme le bras de levier précité.Mechanism according to claim 2, in which the bar actuator (9) has two shoulders (25, 26) defining therebetween a groove (27) in which are engaged the two arms (24) of a fork which, formed on the balance (12), forms the aforementioned lever arm. Mécanisme selon la revendication 3, dans lequel le moyen de rappel élastique du barreau d'actionnement (9) est constitué par un ressort hélicoïdal (10) entourant ce barreau et prenant appui d'une part contre une partie fixe (1) de l'actionneur électromagnétique (21) et d'autre part contre l'épaulement correspondant (25) dudit barreau.Mechanism according to claim 3, in which the return means elastic of the actuating bar (9) is constituted by a helical spring (10) surrounding this bar and bearing on the one hand against a fixed part (1) of the electromagnetic actuator (21) and on the other hand against the shoulder corresponding (25) of said bar. Mécanisme selon l'une des revendications 3 et 4, dans lequel le barreau d'actionnement (9) est agencé suivant un axe sensiblement perpendiculaire à la tige d'armement (8).Mechanism according to one of claims 3 and 4, in which the actuating bar (9) is arranged along an axis substantially perpendicular to the cocking rod (8). Mécanisme selon la revendication 5, dans lequel l'axe de pivotement (15) du balancier (12) est sensiblement perpendiculaire au barreau (9) et à la tige d'armement (8).Mechanism according to claim 5, in which the pivot axis (15) of the pendulum (12) is substantially perpendicular to the bar (9) and to the cocking rod (8). Mécanisme selon l'une des revendications précédentes, dans lequel le moyen de rappel élastique de la tige d'armement (8) est constitué par un ressort hélicoïdal (14) qui entoure cette tige d'armement (8) et qui prend appui, d'une part contre la base (2) portant les contacts fixes (4) et d'autre part contre un poussoir manuel (5) associé à la tige d'armement (8).Mechanism according to one of the preceding claims, in which the elastic return means of the cocking rod (8) consists of a helical spring (14) which surrounds this cocking rod (8) and which is supported, on the one hand against the base (2) carrying the fixed contacts (4) and on the other hand against a manual pusher (5) associated with the cocking rod (8).
EP00402024A 1999-07-14 2000-07-13 Electromagnetic switch mechanism with manual reset device Expired - Lifetime EP1069585B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES009901875U ES1043678Y (en) 1999-07-14 1999-07-14 ELECTROMAGNETIC SWITCH MECHANISM WITH MANUAL RESET.
ES9901875U 1999-07-14

Publications (3)

Publication Number Publication Date
EP1069585A2 true EP1069585A2 (en) 2001-01-17
EP1069585A3 EP1069585A3 (en) 2002-09-11
EP1069585B1 EP1069585B1 (en) 2006-04-05

Family

ID=8309672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00402024A Expired - Lifetime EP1069585B1 (en) 1999-07-14 2000-07-13 Electromagnetic switch mechanism with manual reset device

Country Status (4)

Country Link
EP (1) EP1069585B1 (en)
AT (1) ATE322738T1 (en)
DE (1) DE60027090T2 (en)
ES (2) ES1043678Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426691A1 (en) * 2010-09-06 2012-03-07 ABB Technology AG Mechanical override device
EP3926655A4 (en) * 2019-04-16 2022-11-23 Tianjin JMT Electric Equipment Co., Ltd Intelligent circuit breaker capable of automatically releasing and tripping in outage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567456A (en) * 1983-06-13 1986-01-28 Technology Research Corporation Resettable circuit closing device
FR2561819B1 (en) * 1984-03-26 1987-10-30 Telemecanique Electrique ADDITIVE BLOCK COUPLABLE TO A CIRCUIT BREAKER
GB8509541D0 (en) * 1985-04-13 1985-05-15 Mk Electric Ltd Electrical devices

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426691A1 (en) * 2010-09-06 2012-03-07 ABB Technology AG Mechanical override device
CN102436944A (en) * 2010-09-06 2012-05-02 Abb技术有限公司 Mechanical override device
US8354904B2 (en) 2010-09-06 2013-01-15 Abb Technology Ag Mechanical override device
CN102436944B (en) * 2010-09-06 2015-11-25 Abb技术有限公司 mechanical override device
EP3926655A4 (en) * 2019-04-16 2022-11-23 Tianjin JMT Electric Equipment Co., Ltd Intelligent circuit breaker capable of automatically releasing and tripping in outage

Also Published As

Publication number Publication date
DE60027090T2 (en) 2006-11-16
ES2261168T3 (en) 2006-11-16
EP1069585B1 (en) 2006-04-05
ATE322738T1 (en) 2006-04-15
ES1043678Y (en) 2000-06-16
DE60027090D1 (en) 2006-05-18
EP1069585A3 (en) 2002-09-11
ES1043678U (en) 2000-01-01

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