EP0205361A1 - Hand-actuated snap-closing mechanism for a miniaturized circuit breaker - Google Patents

Hand-actuated snap-closing mechanism for a miniaturized circuit breaker Download PDF

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Publication number
EP0205361A1
EP0205361A1 EP86400929A EP86400929A EP0205361A1 EP 0205361 A1 EP0205361 A1 EP 0205361A1 EP 86400929 A EP86400929 A EP 86400929A EP 86400929 A EP86400929 A EP 86400929A EP 0205361 A1 EP0205361 A1 EP 0205361A1
Authority
EP
European Patent Office
Prior art keywords
spring
link
retaining plate
lever
handle
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
EP86400929A
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German (de)
French (fr)
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EP0205361B1 (en
Inventor
William Bartolo
Robertis Patrick De
Daniel Vanzetto
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
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Merlin Gerin SA
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Filing date
Publication date
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to AT86400929T priority Critical patent/ATE50084T1/en
Publication of EP0205361A1 publication Critical patent/EP0205361A1/en
Application granted granted Critical
Publication of EP0205361B1 publication Critical patent/EP0205361B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/14—Energy stored by deformation of elastic members by twisting of torsion members
    • H01H5/16—Energy stored by deformation of elastic members by twisting of torsion members with auxiliary means for temporarily holding parts until torsion member is sufficiently strained
    • 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
    • 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

  • the invention relates to an abrupt manual closing mechanism of a miniature circuit breaker with molded insulating boot comprising:
  • the abrupt closing mechanisms of the kind mentioned generally require an interruption of the kinematic chain by systems of snap levers intended to cooperate directly with the contact-carrying arm, during the closing stroke of the lever. These known mechanisms are complicated and have a large size incompatible with the reduced volume of the housing.
  • the object of the present invention is to provide a simple mechanism for abruptly closing the contacts of a power cut device, the actuation of which requires normal force without excessive hard point when the accumulator spring comes into action.
  • the retaining plate comprises a light for guiding the transmission link, said light being provided with a boss serving as a stop for the link in the active position of the retaining plate.
  • the kinematic chain drives the contact carrier arm at the start of the closing stroke to an intermediate position separated from the fixed contact by a gap (d) of small thickness, said intermediate position of the current carrier arm corresponding to the position hooking the rod on the boss of the light.
  • the retaining plate is pivotally mounted in a bearing of the housing and is biased towards the active position by a biasing spring bearing on a flange situated opposite the bearing.
  • the accumulator spring advantageously consists of a torsional torsion spring housed around the pivot axis of the handle in a cylindrical cavity in the body of the handle.
  • an abrupt closing device 10 is incorporated in the control mechanism of an electric current cut-off device, in particular a miniature low-voltage circuit breaker with a molded insulating case 12.
  • the mechanism of each pole comprises a tilting lever 14 for manual operation connected by a kinematic chain 16 of transmission to a contact arm 18 for supporting the movable contact 19, cooperating with a fixed contact 10.
  • the kinematic chain 16 of the mechanism is described in detail in French Patent No. 2,344,950, but the triggering members of the mechanism have not been shown in FIGS. 1 to 4.
  • the kinematic chain 16 comprises a rocker arm 22 rotatably mounted on a fixed axis 24.
  • One of the branches 25 of the rocker arm 22 carries a pivot 26 on which the contact arm 18 is pivotally mounted, cooperating with a hooking stop belonging to the trigger lever (not shown).
  • the contact arm 18 In the active position of the hooking stop, the contact arm 18 is locked on the rocker arm 22, so as to constitute a bidirectional connection between the lever 14 and the contact arm 18.
  • the contact arm 18 In the unlocked position of the hooking stopper , following a triggering of the mechanism on fault, the contact arm 18 is unlocked relative to the rocker arm 22, causing the breaking of the mechanical connection between the lever 14 and the contact arm 18.
  • An opening spring (not shown) Then causes separation of the contacts 19, 20, independently of the lever 14. The operation of such a mechanism is well known to specialists, and it is unnecessary to describe it in more detail.
  • the snap closure device 10 is composed of a spring 30 energy accumulator housed in a cylindrical cavity 32 of the body 34 of the lever 14, and of a retaining plate 36, cooperating with the kinematic chain 16 of the mechanism.
  • the tilting lever 14 is rotatably mounted between two extreme closing and opening positions on a fixed transverse axis 38 positioned in aligned bearings of the housing 12.
  • the energy storage spring 30 is constituted by a torsional héiicoldai spring s' extending in the cavity 32 coaxially around the axis 38.
  • One of the ends 31 of the accumulator spring 30 is engaged in a slot in the body 34 of the lever 14, while the other opposite end 33 is secured to an intermediate lever 40 for supporting a transmission link 42.
  • the branch 44 of the rocker arm 22 located opposite the pivot 26 is attached to the rod 42, formed by a U-shaped bracket.
  • One of the arms of the link 42 is articulated on the lever 40, pivotally mounted on the axis 38, and the other arm is guided inside a slot 46, formed in the retaining plate 36.
  • the transmission link 42 and the intermediate lever 40 constitute a toggle arranged between the lever 14 and the rocker arm 22.
  • the light 46 of the retaining plate 36 is provided with a boss 48, arranged to form an erasable stop, cooperating with the link 42.
  • the body 34 of the lever 14 is equipped with an unlocking lug 50 moving in a circular trajectory, during the tilting of the lever 14.
  • the retaining plate 36 is pivotally mounted on a shoulder or bearing 52 of the housing 12 so as to occupy an active locking position or a cleared unlocking position.
  • the plate 36 has a flange 54 cooperating with a biasing spring 56 which biases the plate 36 in the counterclockwise direction towards the active position, allowing the connecting rod 42 to come into abutment against the boss 48 ( Figure 2) during the closing operation of the handle 14.
  • the lug 50 of the body 34 serves as a drive member of the retaining plate 36 towards the erased position against the action of the biasing spring 56, causing the toggle 40, 42 to break, when the lever 14 reaches the end of the closing stroke (FIG. 3).
  • the bias spring 56 is advantageously formed by a strand of the return spring of the trigger lock.
  • a return spring 58 disposed between the housing 12 and the body 34 opposite the lever 40, biases the lever 14 towards the open position - ( Figure 1).
  • the snap closure device 10 has a compact structure thanks to the coaxial arrangement of the accumulator spring 30, the lever 40 and the retaining plate 36 on the axis 38 of the lever 14.
  • the arming of the energy storage spring 30 takes place during the continued pivoting movement of the lever 14 towards the position shown in FIG. 3.
  • the blocking of the rod 42 by the retaining plate 36 hampers the movement of the kinematic connection, and the contact arm 18 remains stationary in the intermediate position of FIG. 2.
  • the unlocking lug 50 drives the retaining plate 36 clockwise of a watch towards the erased position, against the force of the spring 56.
  • the release of the link 42 authorizes the passage of the neutral point of the toggle joint, and the relaxation of the spring 30. All the energy stored in this last, by actuation of the lever 14 is thus returned to the rocker arm 22 of the kinematic link 16, causing a sudden closure of the contacts 19, 20, ( Figure 4).
  • the transmission rod 42 is then positioned at the bottom of the light 46, and the retaining plate 36 remains biased in the position erased by the lug 50.
  • the erasure of the boss 48 then authorizes a manual opening operation of the circuit breaker by making rotate la.manette 14 anti-clockwise to the position of Figure 1.

Abstract

The invention relates to a fast closing mechanism of a circuit breaker with an operating handle. The mechanism comprises an energy storage spring disposed between the handle and an intermediate lever supporting a transmission rod. A retaining plate operates in conjunction with a pin of the handle to occupy either an active position locking the rod during loading of the spring, or a retracted position unlocking the rod allowing the spring to be released at the end of closing travel.

Description

L'invention est relative à un mécanisme de fermeture manuelle brusque d'un disjoncteur miniature à bottier isolant moulé comprenant :The invention relates to an abrupt manual closing mechanism of a miniature circuit breaker with molded insulating boot comprising:

  • -une manette basculante de manoeuvre manuelle de fermeture et d'ouverture, reliée par une chaîne cinématique à un bras porte-contact,-a tilting lever for manual closing and opening, connected by a kinematic chain to a contact-carrying arm,
  • -un ressort accumulateur d'énergie agencé entre un organe de commande et un organe de transmission de ladite chaîne cinématique,an energy accumulator spring arranged between a control member and a transmission member of said kinematic chain,
  • -et un dispositif de blocage de l'organe de transmission durant l'armement du ressort accumulateur d'énergie, la neutralisation dudit dispositif de blocage s'effectuant en fin de course de fermeture autorisant la détente du ressort et le déplacement rapide de l'organe de transmission pour une fermeture brusque des contacts.and a device for blocking the transmission member during the arming of the energy storage spring, the neutralization of said blocking device being effected at the end of the closing stroke allowing the spring to relax and the fast movement of the transmission member for abrupt closure of the contacts.

Les mécanismes de fermeture brusque du genre mentionné nécessitent généralement une interruption de la chaîne cinématique par des systèmes de leviers d'encliquetage destinés à coopérer directement avec le bras porte-contact, lors de la course de fermeture de la manette. Ces mécanismes connus sont compliqués et présentent un encombrement important incompatible avec le volume réduit du boîtier.The abrupt closing mechanisms of the kind mentioned generally require an interruption of the kinematic chain by systems of snap levers intended to cooperate directly with the contact-carrying arm, during the closing stroke of the lever. These known mechanisms are complicated and have a large size incompatible with the reduced volume of the housing.

. L'objet de la présente invention consiste à réaliser un mécanisme simple de fermeture manuelle brusque des contacts d'un appareil de coupure de courant dont l'actionnement nécessite une force normale sans point dur excessif lors de l'entrée en action du ressort accumulateur.. The object of the present invention is to provide a simple mechanism for abruptly closing the contacts of a power cut device, the actuation of which requires normal force without excessive hard point when the accumulator spring comes into action.

Le mécanisme selon l'invention est caractérisé en ce que le ressort accumulateur d'énergie est ancré entre le corps de la manette et un levier intermédiaire articulé à une biellette de transmission pour former une genouillère en liaison avec ladite chaîne cinématique, et que le dispositif de blocage comporte :

  • -une plaquette de retenue susceptible d'occuper soit une position active de verrouillage de la biellette durant l'armement du ressort accumulateur, soit une position effacée de déverrouillage de la biellette autorisant le franchissement du point mort de ladite genouillère, et la détente du ressort accumulateur,
  • -et un ergot de déverrouillage solidaire du corps de la manette, de manière à déplacer la plaquette de retenue de la position active vers la position effacée, lorsque la manette arrive en un point prédéterminé de la trajectoire situé en fin de course de fermeture.
The mechanism according to the invention is characterized in that the energy storage spring is anchored between the body of the lever and an intermediate lever articulated to a transmission link to form a toggle link in connection with said kinematic chain, and that the device blocking includes:
  • a retaining plate capable of occupying either an active position for locking the link during the arming of the accumulator spring, or a cleared position for unlocking the link allowing the neutral point of said toggle to be crossed, and the spring to be released accumulator,
  • -and an unlocking lug secured to the body of the handle, so as to move the retaining plate from the active position to the erased position, when the handle arrives at a predetermined point in the path located at the end of the closing stroke.

On remarque que tous les organes indispensables à la fermeture brusque du mécanisme de commande sont situés au niveau de la manette. Ils peuvent être adjoints en usine sans modification notable à des mécanismes classiques pour transformer un disjoncteur standard en un disjoncteur à fermeture brusque des contacts.It is noted that all the organs essential for the abrupt closure of the control mechanism are located at the level of the lever. They can be added at the factory without significant modification to conventional mechanisms to transform a standard circuit breaker into a circuit breaker with snap closure of the contacts.

Selon une caractéristique de l'invention, la plaquette de retenue comprend une lumière de guidage de la biellette de transmission, ladite lumière étant dotée d'un bossage servant de butée à la biellette en position active de la plaquette de retenue. La chaîne cinématique entraîne au début de la course de fermeture le bras porte-contact jusq- qu'à une position intermédiaire séparée du contact fixe par un intervalle (d) de faible épaisseur, ladite position intermédiaire du bras porte-courant correspondant à la position d'accrochage de la biellette sur le bossage de la lumière.According to a characteristic of the invention, the retaining plate comprises a light for guiding the transmission link, said light being provided with a boss serving as a stop for the link in the active position of the retaining plate. The kinematic chain drives the contact carrier arm at the start of the closing stroke to an intermediate position separated from the fixed contact by a gap (d) of small thickness, said intermediate position of the current carrier arm corresponding to the position hooking the rod on the boss of the light.

Selon une autre caractéristique de l'invention, la plaquette de retenue est montée à pivotement dans un palier du boîtier et est sollicitée vers la position active par un ressort de polarisation prenant appui sur un rebord situé à l'opposé du palier.According to another characteristic of the invention, the retaining plate is pivotally mounted in a bearing of the housing and is biased towards the active position by a biasing spring bearing on a flange situated opposite the bearing.

Le ressort .accumulateur est constitué avantageusement par un ressort héiico'tdat de torsion logé autout de l'axe de pivotement de la manette dans une cavité cylindrique du corps de la manette.The accumulator spring advantageously consists of a torsional torsion spring housed around the pivot axis of the handle in a cylindrical cavity in the body of the handle.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de mise en oeuvre de l'inventiion, donnée à titre d'exemple non limitatif et représenté aux dessins annexés dans lesquels :

  • -les figures 1 à 4 sont des vues schématiques en élévation d'un mécanisme de fermeture brusque selon l'invention, représenté respectivement en position d'ouverture, en cours de mouvement de fermeture.avant et après la libération de la biellette de transmission, et en position de fermeture des contacts ;
  • -la figure 5 montre une vue en coupe transversale selon la ligne V -V de la figure 1 ;
  • -la figure 6 est une autre vue en coupe selon la ligne VI -Vl de la figure 2.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example and represented in the appended drawings in which:
  • FIGS. 1 to 4 are schematic elevation views of an abrupt closing mechanism according to the invention, shown respectively in the open position, during the closing movement. before and after the release of the transmission link, and in the closed position of the contacts;
  • FIG 5 shows a cross-sectional view along the line V-V of Figure 1;
  • FIG. 6 is another sectional view along line VI -Vl of FIG. 2.

Sur les figures, un dispositif de fermeture brusque 10 est incorporé dans le mécanisme de commande d'un appareil électrique de coupure de courant, notamment un disjoncteur miniature à basse tension et à boîtier isolant 12 moulé. Le mécanisme de chaque pôle comporte une manette 14 basculante de manoeuvre manuelle reliée par une chaîne cinématique 16 de transmission à un bras de contact 18 de support du contact mobile 19, coopérant avec un contact fixe 10. La chaîne cinématiqe 16 du mécanisme est décrite en détail dans le brevet français n° 2 344 950, mais les organes de déclenchement du mécanisme n'ont pas été représentés sur les figures 1 à 4.In the figures, an abrupt closing device 10 is incorporated in the control mechanism of an electric current cut-off device, in particular a miniature low-voltage circuit breaker with a molded insulating case 12. The mechanism of each pole comprises a tilting lever 14 for manual operation connected by a kinematic chain 16 of transmission to a contact arm 18 for supporting the movable contact 19, cooperating with a fixed contact 10. The kinematic chain 16 of the mechanism is described in detail in French Patent No. 2,344,950, but the triggering members of the mechanism have not been shown in FIGS. 1 to 4.

La chaîne cinématique 16 comprend un culbuteur 22 monté à rotation sur un axe 24 fixe. L'une des branches 25 du culbuteur 22 porte un pivot 26 sur lequel est monté à pivotement le bras de contact 18 , coopérant avec une butée d'accrochage appartenant au levier de déclenchement (non représenté).The kinematic chain 16 comprises a rocker arm 22 rotatably mounted on a fixed axis 24. One of the branches 25 of the rocker arm 22 carries a pivot 26 on which the contact arm 18 is pivotally mounted, cooperating with a hooking stop belonging to the trigger lever (not shown).

En position active de la butée d'accrochage, le bras de contact 18 se trouve verrouillé sur le culbuteur 22 , de manière à constituer une liaison bidirectionnelle entre la manette 14 et le bras de contact 18. En position déverrouillée de la butée d'accrochage, suite à un déclenchement du mécanisme sur défaut, le bras de contact 18 est déverrouillé par rapport au culbuteur 22, entraînant la brisure de la liaison mécanique entre la manette 14 et le bras de contact 18. Un ressort d'ouverture ( non représenté) provoque ensuite la séparation des contacts 19, 20, indépendamment de la manette 14. Le fonctionnement d'un tel mécanisme est bien connu des spécialistes, et il est inutile de le décrire plus en détail.In the active position of the hooking stop, the contact arm 18 is locked on the rocker arm 22, so as to constitute a bidirectional connection between the lever 14 and the contact arm 18. In the unlocked position of the hooking stopper , following a triggering of the mechanism on fault, the contact arm 18 is unlocked relative to the rocker arm 22, causing the breaking of the mechanical connection between the lever 14 and the contact arm 18. An opening spring (not shown) Then causes separation of the contacts 19, 20, independently of the lever 14. The operation of such a mechanism is well known to specialists, and it is unnecessary to describe it in more detail.

Selon l'invention, le dispositif de fermeture brusque 10 est composé d'un ressort 30 accumulateur d'énergie logé dans une cavité 32 cylindrique du corps 34 de la manette 14, et d'une plaquette de retenue 36, coopérant avec la chaîne cinématique 16 du mécanisme. La manette 14 basculante est montée à rotation entre deux positions extrêmes de fermeture et d'ouverture sur un axe 38 transversal fixe positionné dans des paliers alignés du boîtier 12. Le ressort 30 accumulateur d'énergie est constitué par un ressort héiicoldai de torsion s'étendant dans la cavité 32 coaxialement autour de l'axe 38. L'une des extrémités 31 du ressort 30 accumulateur est engagée dans une fente du corps 34 de la manette 14, tandis que l'autre extrémité 33 opposée est solidarisée à un levier intermédiaire 40 de support d'une biellette 42 de transmission. La branche 44 du culbuteur 22 située à l'opposé du pivot 26 est accrochée à la biellette 42, formée par un étrier en U.According to the invention, the snap closure device 10 is composed of a spring 30 energy accumulator housed in a cylindrical cavity 32 of the body 34 of the lever 14, and of a retaining plate 36, cooperating with the kinematic chain 16 of the mechanism. The tilting lever 14 is rotatably mounted between two extreme closing and opening positions on a fixed transverse axis 38 positioned in aligned bearings of the housing 12. The energy storage spring 30 is constituted by a torsional héiicoldai spring s' extending in the cavity 32 coaxially around the axis 38. One of the ends 31 of the accumulator spring 30 is engaged in a slot in the body 34 of the lever 14, while the other opposite end 33 is secured to an intermediate lever 40 for supporting a transmission link 42. The branch 44 of the rocker arm 22 located opposite the pivot 26 is attached to the rod 42, formed by a U-shaped bracket.

L'un des bras de la biellette 42 est articulée sur le levier 40 , monté à pivotement sur l'axe 38, et l'autre bras est guidé à l'intérieur d'une lumière 46, ménagée dans la plaquette de retenue 36. La biellette de transmission 42 et le levier intermédiaire 40 constituent une genouillère agencée entre la manette 14 et le culbuteur 22.One of the arms of the link 42 is articulated on the lever 40, pivotally mounted on the axis 38, and the other arm is guided inside a slot 46, formed in the retaining plate 36. The transmission link 42 and the intermediate lever 40 constitute a toggle arranged between the lever 14 and the rocker arm 22.

La lumière 46 de la plaquette de retenue 36 est dotée d'un bossage 48, agencé pour former une butée effaçable,coopérant avec la biellette 42. Le corps 34 de la manette 14 est équipé d'un ergot 50 de déverrouillage se déplaçant selon une trajectoire circulaire, lors du basculement de la manette 14. La plaquette de retenue 36 est monté à pivotement limité sur un épaulement ou palier 52 du boîtier 12 de manière à occuper une position active de verrouillage ou une position effacée de déverrouillage. A l'opposé du palier 52, la plaquette 36 comporte un rebord 54 coopérant avec un ressort 56 de polarisation qui sollicite la plaquette 36 dans le sens trigonométrique vers la position active, autorisant la venue en butée de la biellette 42 contre le bossage 48 (figure 2) lors de la manoeuvre de fermeture de la manette 14. L'ergot 50 du corps 34 sert d'organe d'entraînement de la plaquette de retenue 36 vers la position effacée à l'encontre de l'action du ressort de polarisation 56, provoquant la brisure de la genouillère 40, 42, lorsque la manette 14 arrive en fin de course de fermeture (figure 3). Le ressort de polarisation 56 est formé avantageusement par un brin du ressort de rappel du verrou de déclenchement.The light 46 of the retaining plate 36 is provided with a boss 48, arranged to form an erasable stop, cooperating with the link 42. The body 34 of the lever 14 is equipped with an unlocking lug 50 moving in a circular trajectory, during the tilting of the lever 14. The retaining plate 36 is pivotally mounted on a shoulder or bearing 52 of the housing 12 so as to occupy an active locking position or a cleared unlocking position. Opposite the bearing 52, the plate 36 has a flange 54 cooperating with a biasing spring 56 which biases the plate 36 in the counterclockwise direction towards the active position, allowing the connecting rod 42 to come into abutment against the boss 48 ( Figure 2) during the closing operation of the handle 14. The lug 50 of the body 34 serves as a drive member of the retaining plate 36 towards the erased position against the action of the biasing spring 56, causing the toggle 40, 42 to break, when the lever 14 reaches the end of the closing stroke (FIG. 3). The bias spring 56 is advantageously formed by a strand of the return spring of the trigger lock.

Un ressort de rappel 58, disposé entre le boîtier 12 et le corps 34 à l'opposé du levier 40, sollicite la manette 14 vers la position d'ouverture - (figure 1). Le dispositif de fermeture brusque 10 présente une structure compacte grâce à la disposition coaxiale du ressort accumulateur 30, du levier 40 et de la plaquette de retenue 36 sur l'axe 38 de la manette 14.A return spring 58, disposed between the housing 12 and the body 34 opposite the lever 40, biases the lever 14 towards the open position - (Figure 1). The snap closure device 10 has a compact structure thanks to the coaxial arrangement of the accumulator spring 30, the lever 40 and the retaining plate 36 on the axis 38 of the lever 14.

Le fonctionnement du dispositif de fermeture brusque 10 selon l'invention est le suivant :

  • En position d'ouverture du mécanisme (figure 1), la plaquette de retenue 36 se trouve en position active de verrouillage par l'action du ressort de polarisation 56, et la biellette 42 est séparée du bossage 48 par une distance prédéterminée. Au début de course de fermeture du mécanisme par pivotement de la manette 14 dans le sens des aiguilles d'une montre, indiqué par la flèche F sur la figure 2, la biellette 42 se déplace dans la lumière 46 jusqu'à la venue en butée contre le bossage 48 de la plaquette de retenue 36. La chaîne cinématique 16 entraîne, durant ce début de course de fermeture, le bras de contact 18 dans le sens trigonométrique jusqu'à une position in- . termédiaire stable séparée du contact fixe 20 par un faible intervalle "d" ayant une longueur d'un ou de quelques millimètres. Cette position intermédiaire stable du bras de contact 18 correspond à la position d'accrochage de la biellette 42 sur le bossage 48.
The operation of the snap closure device 10 according to the invention is as follows:
  • In the open position of the mechanism (FIG. 1), the retaining plate 36 is in the active locking position by the action of the biasing spring 56, and the link 42 is separated from the boss 48 by a predetermined distance. At the start of the closing stroke of the mechanism by pivoting the lever 14 clockwise, indicated by the arrow F in FIG. 2, the link 42 moves in the light 46 until it comes into abutment against the boss 48 of the retaining plate 36. The kinematic chain 16 drives, during this start of the closing stroke, the contact arm 18 in the counterclockwise direction to an un- position. stable intermediate separated from fixed contact 20 by a small gap "d" having a length of one or a few millimeters. This stable intermediate position of the contact arm 18 corresponds to the position of attachment of the rod 42 to the boss 48.

L'armement du ressort 30 accumulateur d'énergie s'opère au cours du mouvement poursuivi de pivotement de la manette 14 vers la position représentée à la figure 3. Le blocage de la biellette 42 par la plaquette de retenue 36 entrave le déplacement de la liaison cinématique, et le bras de contact 18 reste immobile dans la position intermédiaire de la figure 2. Lorsque la manette 14 arrive dans la position de la figure 3, l'ergot 50 de déverrouillage entraîne la plaquette de retenue 36 dans le sens des aiguilles d'une montre vers la position effacée, à l'encontre de la force du ressort 56. La libération de la biellette 42 autorise le passage du point mort de la genouillère, et la détente du ressort 30. Toute l'énergie emmagasinée dans ce dernier, par t'actionnement de la manette 14 est ainsi restituée au culbuteur 22 de la liaison cinématique 16, provoquant une fermeture brusque des contacts 19, 20, (figure 4).The arming of the energy storage spring 30 takes place during the continued pivoting movement of the lever 14 towards the position shown in FIG. 3. The blocking of the rod 42 by the retaining plate 36 hampers the movement of the kinematic connection, and the contact arm 18 remains stationary in the intermediate position of FIG. 2. When the lever 14 arrives in the position of FIG. 3, the unlocking lug 50 drives the retaining plate 36 clockwise of a watch towards the erased position, against the force of the spring 56. The release of the link 42 authorizes the passage of the neutral point of the toggle joint, and the relaxation of the spring 30. All the energy stored in this last, by actuation of the lever 14 is thus returned to the rocker arm 22 of the kinematic link 16, causing a sudden closure of the contacts 19, 20, (Figure 4).

La biellette de transmission 42 est alors positionnée au fond de la lumière 46, et la plaquette de retenue 36 reste sollicitée en position effacée par l'ergot 50. L'effacement du bossage 48 autorise ensuite une manoeuvre d'ouverture manuelle du disjoncteur en faisant pivoter la.manette 14 dans le sens inverse des aiguilles d'une montre vers la position de la figure 1.The transmission rod 42 is then positioned at the bottom of the light 46, and the retaining plate 36 remains biased in the position erased by the lug 50. The erasure of the boss 48 then authorizes a manual opening operation of the circuit breaker by making rotate la.manette 14 anti-clockwise to the position of Figure 1.

Claims (6)

1. Mécanisme de fermeture manuelle brusque d'un disjoncteur électrique miniature à boîtier (12) isolant moulé, comprenant -une manette (14) basculante de manoeuvre manuelle de fermeture et d'ouverture, reliée par une chaîne cinématique (16) à un bras porte-contact - (18), -un ressort (30) accumulateur' d'énergie agencé entre un organe de commande et un organe de transmission de ladite chaÎi1e cinématique (16)," -et un dispositif de blocage de l'organe de transmission durant l'armement du ressort (30) accumulateur d'énergie, la neutralisation dudit dispositif de blocage s'effectuant en fin de course de fermeture autorisant la détente du ressort (30) et le déplacement rapide de l'organe de transmission pour une fermeture brusque des contacts (19, 20), caractérisé en ce que le ressort (30) accumulateur d'énergie est ancré entre le corps (34) de la manette (14) et un levier intermédiaire (40) articulé è une biellette '(42) de transmission pour former une genouillère en liaison avec ladite chaîne cinématique (16), et que le dispositif de blocage comporte : -une plaquette de retenue (36) susceptible d'occuper soit une position active de verrouillage de la biellette (42) durant l'armement du ressort accumulateur (30), soit une position effacée de déverrouillage de la biellette (42) autorisant le franchissement du point mort de ladite genouillère, et la détente du ressort accumulateur (30), -et un ergot (50) de déverrouillage solidaire du corps (34) de la manette (14), de manière à déplacer la plaquette de retenue (36) de la position active vers la position effacée, lorsque la manette - (14) arrive en un point prédéterminé de la trajectoire situé en fin de course de fermeture. 1. Abrupt manual closing mechanism of a miniature electric circuit breaker with molded insulating housing (12), comprising -a tilting lever (14) for manual closing and opening operation, connected by a kinematic chain (16) to a contact-carrying arm - (18), a spring (30) energy accumulator arranged between a control member and a transmission member of said kinematic chain (16), " and a device for blocking the transmission member during the arming of the energy accumulator spring (30), the neutralization of said blocking device being effected at the end of the closing stroke allowing the spring (30) to relax; and rapid movement of the transmission member for abrupt closure of the contacts (19, 20), characterized in that the energy storage spring (30) is anchored between the body (34) of the lever (14) and a intermediate lever (40) articulated to a link rod (42) for transmission to form a toggle link in connection with said kinematic chain (16), and that the blocking device comprises: a retaining plate (36) capable of occupying either an active position for locking the link (42) during the arming of the accumulator spring (30), or a cleared position for unlocking the link (42) authorizing the crossing from the neutral point of said toggle joint, and the relaxation of the accumulator spring (30), -and a lug (50) unlocking integral with the body (34) of the handle (14), so as to move the retaining plate (36) from the active position to the erased position, when the handle - (14) arrives at a predetermined point on the path located at the end of the closing stroke. 2. Mécanisme de fermeture selon la revendication 1, caractérisé en ce que la plaquette de retenue (36) comprend une lumière (46) de guidage de la biellette de transmission (42), ladite lumière étant dotée d'un bossage (48) servant de butée. à la biellette (42) en position active de la plaquette de retenue (32) et que la chaîne cinématique (16) entraîne au débit de la course de fermeture le bras porte-contact (18) jusqu'à une position intermédiaire séparée du contact fixe (20) par un intervalle (d) faible épaisseur, correspondant à la position d'accrochage de la biellette (42) sur le bossage (48) de la lumière (46).2. Closing mechanism according to claim 1, characterized in that the retaining plate (36) comprises a light (46) for guiding the transmission link (42), said light being provided with a boss (48) serving stop. to the link (42) in the active position of the retaining plate (32) and that the kinematic chain (16) drives the contact-carrying arm (18) at the rate of the closing stroke to an intermediate position separate from the contact fixed (20) by a gap (d) thin, corresponding to the hooking position of the rod (42) on the boss (48) of the light (46). 3. Mécanisme de fermeture selon la revendication 1 ou 2, caractérisé en ce que la plaquette de retenue (36) est montée à pivotement dans un palier (52) du boîtier (12), et est sollicitée vers la position active par un ressort de polarisation (56) prenant appui sur un rebord (54) situé à l'opposé du palier (52).3. Closing mechanism according to claim 1 or 2, characterized in that the retaining plate (36) is pivotally mounted in a bearing (52) of the housing (12), and is biased towards the active position by a spring of polarization (56) bearing on a flange (54) located opposite the bearing (52). 4.Mécanisme de fermeture selon la revendication 3, caractérisé en ce que le levier intermédiaire (40) est monté à rotation sur l'axe (38) de la manette (14) basculante et que le palier (52) de guidage de la plaquette de retenue (36) est formé par un épaulement coaxial à l'axe (38) de la manette (14).4.Closure mechanism according to claim 3, characterized in that the intermediate lever (40) is mounted for rotation on the axis (38) of the tilting lever (14) and that the bearing (52) for guiding the wafer retaining (36) is formed by a shoulder coaxial with the axis (38) of the handle (14). 5.Mécanisme de fermeture selon l'une des revendications 1 à 4, caractérisé en ce que le ressort (30) accumulateur d'énergie est constitué par un ressort hélicô idal de torsion logé coaxialement autour de l'axe (38) dans une cavité (32) cylindrique du corps (34) de la manette (14).5.Closure mechanism according to one of claims 1 to 4, characterized in that the spring (30) energy accumulator is constituted by an ideal helical torsion spring housed coaxially around the axis (38) in a cavity (32) cylindrical of the body (34) of the handle (14). 6.Mécanisme de fermeture selon la revendication 5, caractérisé en ce que la biellette de transmission (42) comporte un étrier en forme de U accroché à un culbuteur (22) de la chaîne cinématique (16), l'un des bras de l'étrier étrier étant articulé sur le levier intermédiaire (40), et l'autre bras se déplaçant à l'intérieur de la lumière (46) de la plaquette de retenue (36).6.Closure mechanism according to claim 5, characterized in that the transmission link (42) comprises a U-shaped bracket attached to a rocker arm (22) of the kinematic chain (16), one of the arms of the caliper caliper being articulated on the intermediate lever (40), and the other arm moving inside the lumen (46) of the retaining plate (36).
EP86400929A 1985-05-13 1986-04-28 Hand-actuated snap-closing mechanism for a miniaturized circuit breaker Expired - Lifetime EP0205361B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400929T ATE50084T1 (en) 1985-05-13 1986-04-28 HAND OPERATED SNAP CLOSURE DEVICE OF A MINIATURE CIRCUIT BREAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507343 1985-05-13
FR8507343A FR2581791B1 (en) 1985-05-13 1985-05-13 MECHANISM FOR QUICK MANUAL CLOSING OF A CURRENT-BREAKING APPARATUS

Publications (2)

Publication Number Publication Date
EP0205361A1 true EP0205361A1 (en) 1986-12-17
EP0205361B1 EP0205361B1 (en) 1990-01-31

Family

ID=9319290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400929A Expired - Lifetime EP0205361B1 (en) 1985-05-13 1986-04-28 Hand-actuated snap-closing mechanism for a miniaturized circuit breaker

Country Status (11)

Country Link
US (1) US4687891A (en)
EP (1) EP0205361B1 (en)
JP (1) JP2510514B2 (en)
AT (1) ATE50084T1 (en)
AU (1) AU581396B2 (en)
CA (1) CA1275139A (en)
DE (1) DE3668724D1 (en)
ES (1) ES8704670A1 (en)
FR (1) FR2581791B1 (en)
PT (1) PT82563B (en)
ZA (1) ZA863450B (en)

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EP0458382A1 (en) * 1990-05-21 1991-11-27 Koninklijke Philips Electronics N.V. Multipole circuit breaker
EP0500138A1 (en) * 1991-02-22 1992-08-26 Weber Protection Ag Protective switch
KR101249785B1 (en) * 2010-09-21 2013-04-03 에이비비 테크놀로지 아게 Plug-in bushing and high-voltage installation having a bushing such as this

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FR2628261B1 (en) * 1988-03-02 1991-04-19 Legrand Sa CIRCUIT BREAKER WITH DEAD POINT MECHANISM
US6291900B1 (en) 1997-09-15 2001-09-18 General Electric Company Electrical energy management for manually powered devices
NL1008731C2 (en) 1998-03-27 1999-09-28 Holec Holland Nv Momentary-trigger switch.
DE69833158T2 (en) * 1998-11-19 2006-08-31 Abb Sace S.P.A. Thermomagnetic circuit breaker
FR2792769B1 (en) * 1999-04-23 2001-07-06 Entrelec Sa HAND-SWITCHING AND / OR SHUTDOWN CONTROL DEVICE OF AN ELECTRICAL APPARATUS
ES2172499T3 (en) 2000-10-19 2002-10-01 Hager Electro BRUSH CLOSURE MECHANISM FOR MODULAR ELECTRICAL DEVICE TYPE OF SWITCH.
US6667680B1 (en) 2002-06-27 2003-12-23 Eaton Corporation Circuit breaker
DE102004055564B4 (en) * 2004-11-18 2022-05-05 Abb Ag Electrical installation switching device
EP1995754B1 (en) * 2007-05-23 2013-09-04 Abb Ag Electric installation switching device
US7911302B2 (en) * 2007-11-15 2011-03-22 General Electric Company Secondary trip system for circuit breaker
CN101882545A (en) * 2009-05-04 2010-11-10 上海良信电器股份有限公司 Rapid closing mechanism for miniature circuit breaker
CN103050343B (en) * 2011-10-14 2015-12-16 上海电科电器科技有限公司 Rapid switching-on mechanism
CN106992104A (en) * 2017-05-05 2017-07-28 佳电气有限公司 Possesses the breaker of automatic control function
CN107026031A (en) * 2017-05-05 2017-08-08 佳电气有限公司 instantaneous closing structure and switching device
CN107039216B (en) * 2017-06-19 2020-09-01 厦门宏发开关设备有限公司 Rapid closing mechanism of residual current operated circuit breaker
CN109979785B (en) * 2019-03-22 2020-09-18 上海电器科学研究院 Circuit breaker with closing energy storage mechanism

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EP0458382A1 (en) * 1990-05-21 1991-11-27 Koninklijke Philips Electronics N.V. Multipole circuit breaker
EP0500138A1 (en) * 1991-02-22 1992-08-26 Weber Protection Ag Protective switch
CH681752A5 (en) * 1991-02-22 1993-05-14 Weber Ag
KR101249785B1 (en) * 2010-09-21 2013-04-03 에이비비 테크놀로지 아게 Plug-in bushing and high-voltage installation having a bushing such as this

Also Published As

Publication number Publication date
JPS61260525A (en) 1986-11-18
FR2581791B1 (en) 1988-11-04
FR2581791A1 (en) 1986-11-14
AU581396B2 (en) 1989-02-16
ES554617A0 (en) 1987-04-16
DE3668724D1 (en) 1990-03-08
US4687891A (en) 1987-08-18
AU5734086A (en) 1986-11-20
EP0205361B1 (en) 1990-01-31
CA1275139A (en) 1990-10-09
PT82563B (en) 1990-06-29
ES8704670A1 (en) 1987-04-16
ZA863450B (en) 1986-12-30
JP2510514B2 (en) 1996-06-26
PT82563A (en) 1986-06-01
ATE50084T1 (en) 1990-02-15

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