EP0827172B1 - Actuator assembly for electrical contacts - Google Patents

Actuator assembly for electrical contacts Download PDF

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Publication number
EP0827172B1
EP0827172B1 EP19970410097 EP97410097A EP0827172B1 EP 0827172 B1 EP0827172 B1 EP 0827172B1 EP 19970410097 EP19970410097 EP 19970410097 EP 97410097 A EP97410097 A EP 97410097A EP 0827172 B1 EP0827172 B1 EP 0827172B1
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EP
European Patent Office
Prior art keywords
cylinder
pin
dog
hand
sword
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19970410097
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German (de)
French (fr)
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EP0827172A1 (en
Inventor
Joel Fagnoul
Manuel Cedron
Michel Barri
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication date
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Publication of EP0827172A1 publication Critical patent/EP0827172A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
    • H01H51/086—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements
    • H01H51/088—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements moved alternately in opposite directions
    • 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
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Definitions

  • the present invention relates to a device for actuating electrical contacts comprising an electromagnet, a bistable control mechanism of at least one electrical contact and means for transmitting the movement of the electromagnet to this mechanism.
  • the present invention proposes to overcome these drawbacks by providing a device compact, space-saving, reliable, easy to assemble and made up of simple parts realize and inexpensive.
  • the electromagnet is a plunging core electromagnet and in that said means for transmission of the movement of the plunging core to said mechanism comprise a sword coupled on the one hand to said plunging core and on the other hand to a pivoting barrel, mounted on a fixed axis of rotation, this sword being disposed externally at the electromagnet between the head of the plunging core and the barrel.
  • the barrel has a recess with a profile cam and said sword has a lateral stud at its free end, this stud being engaged in said cam profile recess of said barrel.
  • the sword is advantageously articulated at its end opposite to said lateral stud on a transverse axis secured to a cap mounted on the head of the plunging core.
  • said cam profile recess comprises a first hollow and a second hollow, these hollows being arranged to alternately house said lateral nipple and serve as supports for passing said barrel from one to the other of its stable positions.
  • said cam profile recess has a face guide which connects the two recesses and is arranged to guide the stud lateral when the plunging core and the sword linked to it return to its position initial.
  • said cam profile recess defines a cam closed for said lateral nipple of said core movement transmission sword dipping into the control mechanism.
  • the device actuator 10 is associated with a contact block 11, for example a remote control switch or similar.
  • the contact block 11 comprises a housing 12 in which are mounted switches 13, for example four in number, which are actuated by a bar 14 movable axially.
  • This bar 14 can occupy a high position represented by figure 2 or a low position, depending on the state of the device actuation. In the high position of the strip 14, the switches 13 are closed, while the low position corresponds to the opening of the switches.
  • the strip 14 is coupled to the contact actuation device 10 by means of a connecting piece 15.
  • This contact actuation device 10 essentially comprises an electromagnet 16 with plunging core 17, a bistable control mechanism 18 of the movable bar 14 which actuates the switches 13, and transmission means of the movement comprising a sword 19 which provides the mechanical connection and the transmission of the movement of the plunging core to the control mechanism bistable.
  • the electromagnet 16 has an armature 16a which supports the carcass 16b of a coil.
  • the plunging core 17 is arranged to slide inside a channel guide formed by said carcass 16b of the coil. It is surmounted by a cap 20 mounted on the head of the plunging core and on which the sword of transmission 19, mounted on a transverse axis 21 integral with the cap 20.
  • a return spring 22 is arranged around the plunging core, in its upper part which exceeds the guide channel of the electromagnet coil frame, or around an extension of this nucleus.
  • the transmission sword 19 can pivot on transverse axis 21.
  • the bistable control mechanism 18 mainly consists of a barrel 23 pivoting mounted on a fixed axis of rotation 24 on which it can rotate freely.
  • This barrel is coupled to a link 25 which is articulated on a fixed axis 26.
  • the coupling mechanical between the barrel 23 and the link 25 is effected by means of a stud 27 engaged in an oblong opening 28 formed in the link 25, this stud being designed to slide freely in this opening.
  • a compression spring 29 is mounted on the link so as to bear on the one hand against a fixed stop, in this case the connecting piece 15 which constitutes a fixed support, and on the other hand against the barrel 23 which constitutes a mobile support.
  • the barrel 23 has a recess with a cam profile 30, in which is engaged a lateral pin 31 disposed at the free end of the transmission sword (see FIG. 3). This nipple allows to couple this sword permanently with the barrel.
  • FIG. 4A represents an initial position of the transmission sword 19, this position corresponding to an initial position of the bistable control mechanism 18 as shown in Figure 5A. This position is stable because the spring of compression 29 tends to block the barrel in the position shown where the stud 27 abuts against the end of the oblong opening 28 opposite the fixed axis 26 of pivoting of the link 25.
  • the plunger is attracted to the inside of the coil casing and the movement transmission sword 19 moves in the direction of arrow A.
  • the point of this sword which carries the lateral pin 31, moves along the axis D1 until it arrives at abutment against the bottom of the hollow 32 of the cam profile recess 30.
  • the point of this sword pressing against the bottom of the hollow 32, drives the barrel and tilts it around the axis of rotation 24, in the direction of the arrow B.
  • This movement of the movement transmission sword 19 causes the mechanism to pass bistable control 18 of its first stable position represented by FIG. 5A, at its second stable position represented by FIG. 5C passing through a position intermediate represented by figure 58.
  • the tip of the movement transmission sword 19 occupies a position 19a illustrated in dotted lines in FIG. 4B.
  • the lateral stud 31 is in press against the bottom of the hollow 32 of the cam profile recess 30.
  • the return spring 22 removes the plunging core and moves the movement transmission sword 19 into the direction of arrow C.
  • the lateral pin 31 first bears against the face of inclined guide 33 of the cam profile recess 30 and follows this face in causing a pivoting of the sword 19 which is positioned along an axis D2, which is substantially symmetrical about the axis D1 with respect to an axis D which joins the transverse axis 21 of the movement transmission sword 19 and the axis of rotation 24 of the barrel 23.
  • the sword occupies the position shown in Figure 4B, and the bistable control mechanism 18 is in its second stable position.
  • the plunging core is at again drawn into the guide channel of the electromagnet casing.
  • the spring 22 is compressed and the movement transmission sword 19 is driven in displacement along axis D2. Its tip first engages in the hollow 34 of the cam profile recess 30 of the barrel 23, then swings the latter around its axis of rotation 24, in the direction of arrow D. This displacement has the effect of return the bistable control mechanism from its second to its first position stable.
  • the bistable control mechanism 18 comprises the barrel 23 pivoting around said fixed axis of rotation 24, said barrel cooperating with a spring hairpin 40, one end of which is hingedly connected to barrel 23 and of which the other end is connected in an articulated manner to a fixed support 41 of the housing.
  • the bistable control mechanism 18 comprises the barrel 23 pivoting around said fixed axis of rotation 24, a link 25 articulated on a second fixed axis 26 of the housing, the barrel being coupled to the link by means of a stud 27 integral with the barrel 23 engaged in an oblong opening 28 provided in the connecting rod, and a compression spring 29 bearing on the one hand, against the stud cited above 27 and on the other hand, against the link.
  • the stud 27 is integral with the rod 25 and engaged in a oblong opening 28 provided in the barrel 23, the compression spring 29 being mounted between the stud 27 and the barrel 23.
  • the bistable control mechanism comprises the pivoting barrel 23 around said fixed axis of rotation 24, a link 25 connected in an articulated manner, by one of its ends, to the barrel 23 and the opposite end of which has a oblong opening 28 cooperating with a stud 27 secured to a fixed support 41 of the housing and a compression spring bearing on the one hand on the stud 27 and on the other hand on the link 25.
  • the bistable control mechanism comprises the pivoting barrel 23 around said fixed axis of rotation 24, a link 25 articulated by one of its ends on said barrel 23 and comprising at its opposite end a stud 27 engaged in an oblong opening 28 formed in a fixed support 41 of the housing, and a compression spring 29 bearing on the one hand on the fixed support 41 and on the other share on nipple 27.
  • the device described has many advantages. It is compact and its operation is particularly safe.
  • the notches are as small as possible in order to limit the the dead stroke of the sword in the barrel is no longer possible.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Mechanical Operated Clutches (AREA)
  • Manipulator (AREA)

Description

La présente invention concerne un dispositif d'actionnement de contacts électriques comportant un électro-aimant, un mécanisme de commande bistable d'au moins un contact électrique et des moyens de transmission du mouvement de l'électroaimant à ce mécanisme. (US-A-4386338)The present invention relates to a device for actuating electrical contacts comprising an electromagnet, a bistable control mechanism of at least one electrical contact and means for transmitting the movement of the electromagnet to this mechanism. (US-A-4386338)

On connaít déjà des dispositifs de ce type comportant un mécanisme de commande bistable pour actionner un ou une série de contacts électriques. Ces dispositifs sont habituellement constitués d'une bascule actionnée par une palette couplée à un électro-aimant.We already know devices of this type comprising a control mechanism bistable for actuating one or a series of electrical contacts. These devices are usually consisting of a rocker operated by a pallet coupled to a electro magnet.

Ces dispositifs connus comportent un ensemble de pièces de petites dimensions qui sont difficiles à monter. En outre, la palette est disposée dans le prolongement de l'électro-aimant, ce qui rend l'ensemble encombrant.These known devices include a set of small parts which are difficult to assemble. In addition, the pallet is arranged in the extension of the electromagnet, which makes the assembly bulky.

La présente invention se propose de pallier ces inconvénients en réalisant un dispositif compact, peu encombrant, fiable, facile à monter et constitué de pièces simples à réaliser et peu coûteuses.The present invention proposes to overcome these drawbacks by providing a device compact, space-saving, reliable, easy to assemble and made up of simple parts realize and inexpensive.

Ce but est atteint par le dispositif tel que défini en préambule, caractérisé en ce que l'électroaimant est un électroaimant à noyau plongeant et en ce que lesdits moyens de transmission du mouvement du noyau plongeant audit mécanisme comportent une épée couplée d'une part audit noyau plongeant et d'autre part à un barillet pivotant, monté sur un axe de rotation fixe, cette épée étant disposée extérieurement à l'électro-aimant entre la tête du noyau plongeant et le barillet.This object is achieved by the device as defined in the preamble, characterized in that the electromagnet is a plunging core electromagnet and in that said means for transmission of the movement of the plunging core to said mechanism comprise a sword coupled on the one hand to said plunging core and on the other hand to a pivoting barrel, mounted on a fixed axis of rotation, this sword being disposed externally at the electromagnet between the head of the plunging core and the barrel.

Selon un mode de réalisation préféré, le barillet comporte un évidement à profil de came et ladite épée comporte un téton latéral à son extrémité libre, ce téton étant engagé dans ledit évidement à profil de came dudit barillet. According to a preferred embodiment, the barrel has a recess with a profile cam and said sword has a lateral stud at its free end, this stud being engaged in said cam profile recess of said barrel.

L'épée est avantageusement articulée à son extrémité opposée audit téton latéral sur un axe transversal solidaire d'un capuchon monté sur la tête du noyau plongeant.The sword is advantageously articulated at its end opposite to said lateral stud on a transverse axis secured to a cap mounted on the head of the plunging core.

Selon une autre caractéristique, ledit évidement à profil de came comporte un premier creux et un second creux, ces creux étant agencés pour loger alternativement ledit téton latéral et servir d'appuis pour faire passer ledit barillet de l'une dans l'autre de ses positions stables.According to another characteristic, said cam profile recess comprises a first hollow and a second hollow, these hollows being arranged to alternately house said lateral nipple and serve as supports for passing said barrel from one to the other of its stable positions.

Selon une autre caractéristique, ledit évidement à profil de came comporte une face de guidage qui relie les deux creux et est agencée pour assurer le guidage du téton latéral lors du retour du noyau plongeant et de l'épée qui lui est liée dans sa position initiale.According to another characteristic, said cam profile recess has a face guide which connects the two recesses and is arranged to guide the stud lateral when the plunging core and the sword linked to it return to its position initial.

Selon une autre caractéristique, ledit évidement à profil de came définit une came fermée pour ledit téton latéral de ladite épée de transmission du mouvement du noyau plongeant au mécanisme de commande.According to another characteristic, said cam profile recess defines a cam closed for said lateral nipple of said core movement transmission sword dipping into the control mechanism.

L'invention sera mieux comprise en référence à la description d'une forme de réalisation et des dessins annexés, qui représentent à titre d'exemple non limitatif, une forme de réalisation préférée du dispositif selon l'invention.

  • La figure 1 est une vue en perspective d'une forme de réalisation du dispositif selon l'invention associé à un bloc de contacts,
  • La figure 2 est une vue en plan du dispositif selon la figure 1,
  • La figure 3 est une vue en perspective de l'électro-aimant et de l'épée de transmission du mouvement qui sont des composants du dispositif selon l'invention,
  • Les figures 4A et 4B sont deux vues partielles du dispositif de l'invention, illustrant son fonctionnement,
  • Les figures 5A, 5B et 5C sont des vues du mécanisme de commande du dispositif selon l'invention, respectivement dans deux positions stables et dans une position intermédiaire, et
  • Les figures 6 à 10 sont des vues schématiques illustrant respectivement cinq réalisations particulières du mécanisme de commande bistable de l'invention.
The invention will be better understood with reference to the description of an embodiment and the appended drawings, which represent by way of nonlimiting example, a preferred embodiment of the device according to the invention.
  • FIG. 1 is a perspective view of an embodiment of the device according to the invention associated with a contact block,
  • FIG. 2 is a plan view of the device according to FIG. 1,
  • FIG. 3 is a perspective view of the electromagnet and of the movement transmission sword which are components of the device according to the invention,
  • FIGS. 4A and 4B are two partial views of the device of the invention, illustrating its operation,
  • FIGS. 5A, 5B and 5C are views of the control mechanism of the device according to the invention, respectively in two stable positions and in an intermediate position, and
  • Figures 6 to 10 are schematic views respectively illustrating five particular embodiments of the bistable control mechanism of the invention.

En référence aux figures et plus particulièrement aux figures 1, 2 et 3, le dispositif d'actionnement de contacts 10 est associé à un bloc de contacts 11, par exemple un télérupteur ou similaire.With reference to the figures and more particularly to Figures 1, 2 and 3, the device actuator 10 is associated with a contact block 11, for example a remote control switch or similar.

Le bloc de contacts 11 comporte un boítier 12 dans lequel sont montés des interrupteurs 13, par exemple au nombre de quatre, qui sont actionnés par une barrette 14 mobile axialement. Cette barrette 14 peut occuper une position haute représentée par la figure 2 ou une position basse, en fonction de l'état du dispositif d'actionnement. Dans la position haute de la barrette 14, les interrupteurs 13 sont fermés, alors que la position basse correspond à l'ouverture des interrupteurs. La barrette 14 est couplée au dispositif d'actionnement de contacts 10 au moyen d'une pièce de liaison 15.The contact block 11 comprises a housing 12 in which are mounted switches 13, for example four in number, which are actuated by a bar 14 movable axially. This bar 14 can occupy a high position represented by figure 2 or a low position, depending on the state of the device actuation. In the high position of the strip 14, the switches 13 are closed, while the low position corresponds to the opening of the switches. The strip 14 is coupled to the contact actuation device 10 by means of a connecting piece 15.

Ce dispositif d'actionnement de contacts 10 comporte essentiellement un électro-aimant 16 à noyau plongeant 17, un mécanisme de commande bistable 18 de la barrette 14 mobile qui actionne les interrupteurs 13, et des moyens de transmission du mouvement comportant une épée 19 qui assure la liaison mécanique et la transmission du mouvement du noyau plongeant au mécanisme de commande bistable. L'électro-aimant 16 comporte une armature 16a qui supporte la carcasse 16b d'une bobine. Le noyau plongeant 17 est agencé pour coulisser à l'intérieur d'un canal de guidage constitué par ladite carcasse 16b de la bobine. Il est surmonté d'un capuchon 20 monté sur la tête du noyau plongeant et sur lequel est articulée l'épée de transmission 19, montée sur un axe transversal 21 solidaire du capuchon 20. Un ressort de rappel 22 est disposé autour du noyau plongeant, dans sa partie supérieure qui dépasse le canal de guidage de la carcasse de la bobine de l'électro-aimant, ou autour d'un prolongement de ce noyau. L'épée de transmission 19 peut pivoter sur l'axe transversal 21.This contact actuation device 10 essentially comprises an electromagnet 16 with plunging core 17, a bistable control mechanism 18 of the movable bar 14 which actuates the switches 13, and transmission means of the movement comprising a sword 19 which provides the mechanical connection and the transmission of the movement of the plunging core to the control mechanism bistable. The electromagnet 16 has an armature 16a which supports the carcass 16b of a coil. The plunging core 17 is arranged to slide inside a channel guide formed by said carcass 16b of the coil. It is surmounted by a cap 20 mounted on the head of the plunging core and on which the sword of transmission 19, mounted on a transverse axis 21 integral with the cap 20. A return spring 22 is arranged around the plunging core, in its upper part which exceeds the guide channel of the electromagnet coil frame, or around an extension of this nucleus. The transmission sword 19 can pivot on transverse axis 21.

Le mécanisme de commande bistable 18 se compose principalement d'un barillet 23 pivotant monté sur un axe de rotation fixe 24 sur lequel il peut tourner librement. Ce barillet est couplé à une biellette 25 qui est articulée sur un axe fixe 26. Le couplage mécanique entre le barillet 23 et la biellette 25 s'effectue au moyen d'un téton 27 engagé dans une ouverture oblongue 28 ménagée dans la biellette 25, ce téton étant conçu pour coulisser librement dans cette ouverture. Un ressort de compression 29 est monté sur la biellette de manière à prendre appui d'une part contre une butée fixe, en l'occurrence la pièce de liaison 15 qui constitue un appui fixe, et d'autre part contre le barillet 23 qui constitue un appui mobile.The bistable control mechanism 18 mainly consists of a barrel 23 pivoting mounted on a fixed axis of rotation 24 on which it can rotate freely. This barrel is coupled to a link 25 which is articulated on a fixed axis 26. The coupling mechanical between the barrel 23 and the link 25 is effected by means of a stud 27 engaged in an oblong opening 28 formed in the link 25, this stud being designed to slide freely in this opening. A compression spring 29 is mounted on the link so as to bear on the one hand against a fixed stop, in this case the connecting piece 15 which constitutes a fixed support, and on the other hand against the barrel 23 which constitutes a mobile support.

Le barillet 23 comporte un évidement à profil de came 30, dans lequel est engagé un téton latéral 31 disposé à l'extrémité libre de l'épée de transmission (voir figure 3). Ce téton permet de coupler cette épée de façon permanente avec le barillet.The barrel 23 has a recess with a cam profile 30, in which is engaged a lateral pin 31 disposed at the free end of the transmission sword (see FIG. 3). This nipple allows to couple this sword permanently with the barrel.

Le fonctionnement du système sera décrit en détail en référence aux figures 4A, 4B et 5A, 5B et 5C.The operation of the system will be described in detail with reference to FIGS. 4A, 4B and 5A, 5B and 5C.

La figure 4A représente une position initiale de l'épée de transmission 19, cette position correspondant à une position initiale du mécanisme de commande bistable 18 tel que représenté par la figure 5A. Cette position est stable du fait que le ressort de compression 29 tend à bloquer le barillet dans la position représentée où le téton 27 est en butée contre l'extrémité de l'ouverture oblongue 28 opposée à l'axe fixe 26 de pivotement de la biellette 25. FIG. 4A represents an initial position of the transmission sword 19, this position corresponding to an initial position of the bistable control mechanism 18 as shown in Figure 5A. This position is stable because the spring of compression 29 tends to block the barrel in the position shown where the stud 27 abuts against the end of the oblong opening 28 opposite the fixed axis 26 of pivoting of the link 25.

Si la bobine de l'électro-aimant est alimentée, le noyau plongeant est attiré vers l'intérieur de la carcasse de la bobine et l'épée de transmission du mouvement 19 se déplace dans le sens de la flèche A. Dans un premier temps, la pointe de cette épée, qui porte le téton latéral 31, se déplace selon l'axe D1 jusqu'à ce qu'elle arrive en butée contre le fond du creux 32 de l'évidement à profil de came 30. Dans un deuxième temps, la pointe de cette épée, en prenant appui contre le fond du creux 32, entraíne le barillet et le fait basculer autour de l'axe de rotation 24, dans le sens de la flèche B.If the solenoid coil is energized, the plunger is attracted to the inside of the coil casing and the movement transmission sword 19 moves in the direction of arrow A. At first, the point of this sword, which carries the lateral pin 31, moves along the axis D1 until it arrives at abutment against the bottom of the hollow 32 of the cam profile recess 30. In a second time, the point of this sword, pressing against the bottom of the hollow 32, drives the barrel and tilts it around the axis of rotation 24, in the direction of the arrow B.

Ce déplacement de l'épée 19 de transmission du mouvement fait passer le mécanisme de commande bistable 18 de sa première position stable représentée par la figure 5A, à sa deuxième position stable représentée par la figure 5C en passant par une position intermédiaire représentée par la figure 58.This movement of the movement transmission sword 19 causes the mechanism to pass bistable control 18 of its first stable position represented by FIG. 5A, at its second stable position represented by FIG. 5C passing through a position intermediate represented by figure 58.

Dans cette position intermédiaire, le ressort de compression 29 est comprimé et accumule de l'énergie qui se libère pour amener et maintenir le barillet 23 dans la position de la figure 5C et de la figure 4B.In this intermediate position, the compression spring 29 is compressed and accumulates energy which is released to bring and maintain the barrel 23 in the position of Figure 5C and Figure 4B.

Dans une phase initiale, la pointe de l'épée 19 de transmission du mouvement occupe une position 19a illustrée en pointillés sur la figure 4B. Le téton latéral 31 est en appui contre le fond du creux 32 de l'évidement à profil de came 30. Dès que l'alimentation de la bobine de l'électro-aimant est interrompue, le ressort de rappel 22 retire le noyau plongeant et déplace l'épée de transmission du mouvement 19 dans le sens de la flèche C. Le téton latéral 31 vient d'abord en appui contre la face de guidage 33 inclinée de l'évidement à profil de came 30 et suit cette face en provoquant un pivotement de l'épée 19 qui se positionne selon un axe D2, qui est sensiblement symétrique de l'axe D1 par rapport à un axe D qui joint l'axe transversal 21 de l'épée de transmission du mouvement 19 et l'axe de rotation 24 du barillet 23. Dans la phase initiale, l'épée occupe la position représentée par la figure 4B, et le mécanisme de commande bistable 18 se trouve dans sa deuxième position stable. In an initial phase, the tip of the movement transmission sword 19 occupies a position 19a illustrated in dotted lines in FIG. 4B. The lateral stud 31 is in press against the bottom of the hollow 32 of the cam profile recess 30. As soon as the power supply to the solenoid coil is interrupted, the return spring 22 removes the plunging core and moves the movement transmission sword 19 into the direction of arrow C. The lateral pin 31 first bears against the face of inclined guide 33 of the cam profile recess 30 and follows this face in causing a pivoting of the sword 19 which is positioned along an axis D2, which is substantially symmetrical about the axis D1 with respect to an axis D which joins the transverse axis 21 of the movement transmission sword 19 and the axis of rotation 24 of the barrel 23. In the initial phase, the sword occupies the position shown in Figure 4B, and the bistable control mechanism 18 is in its second stable position.

Lors d'une nouvelle impulsion d'alimentation de la bobine, le noyau plongeant est à nouveau attiré dans le canal de guidage de la carcasse de l'électro-aimant. Le ressort de rappel 22 se comprime et l'épée 19 de transmission du mouvement est entraínée en déplacement selon l'axe D2. Sa pointe s'engage d'abord dans le creux 34 de l'évidement à profil de came 30 du barillet 23, puis fait basculer ce dernier autour de son axe de rotation 24, dans le sens de la flèche D. Ce déplacement a pour effet de ramener le mécanisme de commande bistable de sa deuxième à sa première position stable.During a new supply pulse from the coil, the plunging core is at again drawn into the guide channel of the electromagnet casing. The spring 22 is compressed and the movement transmission sword 19 is driven in displacement along axis D2. Its tip first engages in the hollow 34 of the cam profile recess 30 of the barrel 23, then swings the latter around its axis of rotation 24, in the direction of arrow D. This displacement has the effect of return the bistable control mechanism from its second to its first position stable.

A chaque changement de position du mécanisme de commande bistable, correspond une position de la barrette 14 et un état des interrupteurs 13.Each time the position of the bistable control mechanism changes, a position of the bar 14 and a state of the switches 13.

En se reportant aux figures 6 à 10 on voit différentes réalisations possibles du mécanisme de commande bistable.Referring to Figures 6 to 10 we see different possible embodiments of the bistable control mechanism.

Sur la figure 6, le mécanisme de commande bistable 18 comporte le barillet 23 pivotant autour dudit axe de rotation fixe 24, ledit barillet coopérant avec un ressort en épingle 40 dont une extrémité est reliée de manière articulée au barillet 23 et dont l'autre extrémité est reliée de manière articulée à un support fixe 41 du boítier.In FIG. 6, the bistable control mechanism 18 comprises the barrel 23 pivoting around said fixed axis of rotation 24, said barrel cooperating with a spring hairpin 40, one end of which is hingedly connected to barrel 23 and of which the other end is connected in an articulated manner to a fixed support 41 of the housing.

Sur la figure 7, le mécanisme de commande bistable 18 comporte le barillet 23 pivotant autour dudit axe de rotation fixe 24, une biellette 25 articulée sur un second axe fixe 26 du boítier, le barillet étant couplé à la biellette au moyen d'un téton 27 solidaire du barillet 23 engagé dans une ouverture oblongue 28 prévue dans la biellette, et un ressort de compression 29 prenant appui d'une part, contre le téton précité 27 et d'autre part, contre la biellette.In FIG. 7, the bistable control mechanism 18 comprises the barrel 23 pivoting around said fixed axis of rotation 24, a link 25 articulated on a second fixed axis 26 of the housing, the barrel being coupled to the link by means of a stud 27 integral with the barrel 23 engaged in an oblong opening 28 provided in the connecting rod, and a compression spring 29 bearing on the one hand, against the stud cited above 27 and on the other hand, against the link.

Sur la figure 8, le téton 27 est solidaire de la biellette 25 et engagé dans une ouverture oblongue 28 prévue dans le barillet 23, le ressort de compression 29 étant monté entre le téton 27 et le barillet 23. In Figure 8, the stud 27 is integral with the rod 25 and engaged in a oblong opening 28 provided in the barrel 23, the compression spring 29 being mounted between the stud 27 and the barrel 23.

Sur la figure 9, le mécanisme de commande bistable comporte le barillet 23 pivotant autour dudit axe de rotation fixe 24, une biellette 25 reliée de manière articulée, par l'une de ses extrémités, au barillet 23 et dont l'extrémité opposée comporte une ouverture oblongue 28 coopérant avec un téton 27 solidaire d'un support fixe 41 du boítier et un ressort de compression en appui d'une part sur le téton 27 et d'autre part sur la biellette 25.In FIG. 9, the bistable control mechanism comprises the pivoting barrel 23 around said fixed axis of rotation 24, a link 25 connected in an articulated manner, by one of its ends, to the barrel 23 and the opposite end of which has a oblong opening 28 cooperating with a stud 27 secured to a fixed support 41 of the housing and a compression spring bearing on the one hand on the stud 27 and on the other hand on the link 25.

Sur la figure 10, le mécanisme de commande bistable comporte le barillet 23 pivotant autour dudit axe de rotation fixe 24, une biellette 25 articulée par l'une de ses extrémités sur ledit barillet 23 et comportant à son extrémité opposée un téton 27 engagé dans une ouverture oblongue 28 ménagée dans un support fixe 41 du boítier, et un ressort de compression 29 en appui d'une part sur le support fixe 41 et d'autre part sur le téton 27.In FIG. 10, the bistable control mechanism comprises the pivoting barrel 23 around said fixed axis of rotation 24, a link 25 articulated by one of its ends on said barrel 23 and comprising at its opposite end a stud 27 engaged in an oblong opening 28 formed in a fixed support 41 of the housing, and a compression spring 29 bearing on the one hand on the fixed support 41 and on the other share on nipple 27.

Le dispositif décrit présente de nombreux avantages. Il est compact et son fonctionnement est particulièrement sûr. La présence de l'épée de transmission du mouvement disposée au-dessus de l'électro-aimant et couplée à la tête du noyau plongeant, permet de réduire l'encombrement du système. On notera que plus l'épée est longue, moins elle doit s'incliner par rapport à l'axe de l'électroaimant.The device described has many advantages. It is compact and its operation is particularly safe. The presence of the transmission sword of the movement arranged above the electromagnet and coupled to the head of the core plunging, reduces the size of the system. Note that the longer the sword is long, the less it has to tilt in relation to the axis of the electromagnet.

Les encoches sont de dimensions aussi réduite que possible de manière à limiter le plus possible la course morte de l'épée dans le barillet.The notches are as small as possible in order to limit the the dead stroke of the sword in the barrel is no longer possible.

Il sera avantageux d'arrondir les extrémités des encoches du profil de came afin de limiter les chocs lors du retour du noyau plongeant.It will be advantageous to round off the ends of the notches in the cam profile in order to limit shock when the plunging core returns.

On notera enfin que les centres des encoches et le centre de rotation du barillet sont à peu près alignés. L'existence de l'évidement à profil de came ménagé dans le barillet, définit une came fermée qui assure un guidage efficace et sûr de l'extrémité libre de l'épée à l'aller comme au retour du noyau plongeant.Finally, note that the centers of the notches and the center of rotation of the barrel are at roughly aligned. The existence of the cam profile recess in the barrel, defines a closed cam which ensures efficient and safe guiding of the free end of the sword on the outward journey as on the return of the plunging core.

Claims (9)

  1. An actuating device (10) for actuation of electrical contacts comprising an electromagnet (16) with a plunger core (17), a bistable operating mechanism of at least one electrical contact and transmission means for transmitting the movement of the electromagnet (16) to this mechanism, characterized in that the above-mentioned transmission means comprise a sword (19) arranged externally to the electromagnet and coupled on the one hand to said plunger core (17) and on the other hand to said mechanism, said mechanism comprising a pivoting cylinder (23) mounted on a fixed rotation spindle (24), said cylinder (23) being coupled on the one hand to the sword and on the other hand to a rod (25) articulated on a second fixed spindle (26) of the case, and a compression spring (29) designed to urge the cylinder (23) to one or the other of the two stable equilibrium positions.
  2. The device according to claim 1, characterized in that said cylinder (23) comprises a cam-shaped recess (30) and that said sword (19) comprises a lateral dog-pin (31) at its free end, this dog-pin being engaged in said cam-shaped recess (30) of said cylinder (23).
  3. The device according to claim 1 or 2, characterized in that said sword (19) is articulated at its end opposite from said lateral dog-pin (31) on a transverse spindle (21) fixedly secured to a cap (20) mounted on the head of the plunger core (17).
  4. The device according to claim 2, characterized in that said cam-shaped recess (30) comprises a first hollow (32) and a second hollow (34), these hollows being arranged to alternately house said lateral dog-pin (31) and to act as bearing surfaces to make said cylinder (23) move from one of its stable positions to the other.
  5. The device according to any one of the claims 1 to 4, characterized in that the bistable operating mechanism (18) comprises the cylinder (23) pivoting around said fixed rotation spindle (24), a rod (25) articulated on a second fixed spindle (26) of the case, the cylinder being coupled to the rod by means of a dog-pin (27) fixedly secured to the cylinder (23) (or to the rod) engaged in an oblong opening (28) provided in the rod (25) (or respectively in the cylinder), and a compression spring (29) bearing on the one hand against the above-mentioned dog-pin (27) and on the other hand against the rod (25) (or respectively the cylinder).
  6. The device according to any one of the claims 1 to 4, characterized in that the bistable operating mechanism comprises the cylinder (23) pivoting around said fixed rotation spindle (24), a rod (25) connected in articulated manner via one of its ends to the cylinder (23) and the opposite end whereof comprises an oblong opening (28) co-operating with a dog-pin (27) fixedly secured to a fixed support (41) of the case and a compression spring bearing on the one hand on the dog-pin (27) and on the other hand on the rod (25).
  7. The device according to any one of the claims 1 to 4, characterized in that the bistable operating mechanism comprises the cylinder (23) pivoting around said fixed rotation spindle (24), a rod (25) articulated via one of its ends on said cylinder (23) and comprising at its opposite end a dog-pin (27) engaged in an oblong opening (28) arranged in a fixed support (41) of the case, and a compression spring (29) bearing on the one hand on the fixed support (41) and on the other hand on the dog-pin (27).
  8. The device according to any one of the claims 2 to 7, characterized in that said cam-shaped recess (30) comprises a guiding face (33) which joins the two hollows (32 and 34) and is arranged to perform guiding of the lateral dog-pin (31) when the plunger core (17) and the sword joined to this core returns to its initial position.
  9. The device according to any one of the claims 2 to 7, characterized in that said cam-shaped recess (30) defines a closed cam for said lateral dog-pin (31) of said sword (19) for transmission of the movement of the plunger core (17) to the operating mechanism (18).
EP19970410097 1996-09-02 1997-08-29 Actuator assembly for electrical contacts Expired - Lifetime EP0827172B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9610929A FR2753000B1 (en) 1996-09-02 1996-09-02 DEVICE FOR ACTUATING ELECTRICAL CONTACTS
FR9610929 1996-09-02

Publications (2)

Publication Number Publication Date
EP0827172A1 EP0827172A1 (en) 1998-03-04
EP0827172B1 true EP0827172B1 (en) 2001-11-28

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Application Number Title Priority Date Filing Date
EP19970410097 Expired - Lifetime EP0827172B1 (en) 1996-09-02 1997-08-29 Actuator assembly for electrical contacts

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EP (1) EP0827172B1 (en)
DE (1) DE69708557D1 (en)
ES (1) ES2166964T3 (en)
FR (1) FR2753000B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014196934A1 (en) * 2013-06-06 2014-12-11 NELA razvojni center d.o.o. Bistable mechanism for switching electrical loads

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB467652A (en) * 1935-12-13 1937-06-14 Albert Henry Franks Perl Improvements in or relating to snap-action electric switches
US3290470A (en) * 1965-05-19 1966-12-06 Dielectric Products Engineerin Electrical switch having frictionally engaging contacts and fulcrum release means therefor
FR1540442A (en) * 1967-07-28 1968-09-27 Financ Ind Et Commerciale Pour Improvements to remote control switches or similar devices
FR94553E (en) * 1967-07-28 1969-09-12 Financ Ind Et Commerciale Pour Improvements to remote control switches or similar devices.
US3525960A (en) * 1969-01-28 1970-08-25 Gen Motors Corp Electromechanically and manually operable switch mechanism
FR2309032A1 (en) * 1975-04-21 1976-11-19 Mang Ets Gerard Compact, modular electric circuit breaker - has electromagnet and flat sub-assembly with moving and fixed contacts
US4386338A (en) * 1980-11-17 1983-05-31 Leviton Manufacturing Company, Inc. Remote control system
FR2499307A1 (en) * 1981-02-03 1982-08-06 Hager Electro CONTROL MECHANISM WITH OSCILLATING PART AND ELASTIC RETURN MEANS FOR ELECTRICAL APPARATUS WITH TWO STABLE POSITIONS AND ELECTRICAL APPARATUS COMPRISING SUCH A MECHANISM
FR2598849B1 (en) * 1986-05-15 1988-08-12 Hager Electro BISTABLE ELECTRICAL SWITCHING APPARATUS

Also Published As

Publication number Publication date
ES2166964T3 (en) 2002-05-01
DE69708557D1 (en) 2002-01-10
EP0827172A1 (en) 1998-03-04
FR2753000B1 (en) 1998-10-02
FR2753000A1 (en) 1998-03-06

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