EP2581924B1 - Device for transcribing a mechanical position into an electrical state - Google Patents

Device for transcribing a mechanical position into an electrical state Download PDF

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Publication number
EP2581924B1
EP2581924B1 EP12354046.0A EP12354046A EP2581924B1 EP 2581924 B1 EP2581924 B1 EP 2581924B1 EP 12354046 A EP12354046 A EP 12354046A EP 2581924 B1 EP2581924 B1 EP 2581924B1
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EP
European Patent Office
Prior art keywords
switch
mobile contact
arm
conversion device
contact
Prior art date
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Active
Application number
EP12354046.0A
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German (de)
French (fr)
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EP2581924A1 (en
Inventor
Grégory Dedina
Tomás Kulovaný
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2581924A1 publication Critical patent/EP2581924A1/en
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Publication of EP2581924B1 publication Critical patent/EP2581924B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Definitions

  • the two switches are each double-contact and the mechanism for actuating them comprises a flap which is intended to tilt and then carry with it, in its movement, the movable contact-holders of the switches.
  • Each movable contact carrier is biased by a leaf spring towards one of its two open and closed positions.
  • a fork is further coupled to a crank of the flap, so as to tilt it. It equips one of the two arms of a rocker whose pivot axis is orthogonal to the tilting axis of the flap and movable contact holders.
  • the transcription device mentioned in the previous paragraph is complex. Its complexity is at least partly explained by the need to satisfy various requirements, such as requirements resulting from interactions with external devices arranged according to a given spatial organization and such as constraints resulting from the reception of the transcription device in a reduced space with pre-established dimensions. In this respect, the choice of double-contact switches is a result of the need for a small footprint.
  • the object of the invention is at least to enable a transcription device of the aforementioned type to be simplified while still being able to satisfy one or more specific spatial constraints.
  • this object is achieved by means of a transcription device of the aforementioned type, the mechanism of which comprises a lever including a first lateral arm swinging about a pivot axis of this lever and a second lateral arm swinging around the same pivot axis are respectively disposed on opposite first and second sides with respect to said pivot axis.
  • the first side arm is an operating arm of the first switch, which is on the first side with respect to said pivot axis.
  • the second side arm is an operating arm of the second switch, which is on the second side, opposite the first side, with respect to said pivot axis.
  • the transcription device according to the invention may incorporate one or more other advantageous characteristics, alone or in combination, in particular from those defined below.
  • the first lateral arm is an operating arm of the maneuverable support of the first switch
  • the second lateral arm is an operating arm of the maneuverable support of the second switch.
  • the maneuverable support carrying the movable contact is a conduct of electrical connection of this movable contact to an electrical circuit.
  • the first switch at least comprises an elastic member for returning its movable contact in one of the open and closed positions of the movable contact.
  • the first lateral arm is a thrust arm against the resilient return member on the operable support of the first switch.
  • the elastic return member exerts an elastic return in the direction of closing the first switch.
  • the first lateral arm is tilting from an active position for retaining the first switch in the open state against the elastic return member, towards an intermediate position for closing the first switch, to a passive position which is beyond the intermediate position in the direction of the elastic return and wherein the elastic return produces a calibrated closing force of the first switch, without interference of the first side arm.
  • the maneuverable support carrying the movable contact forms the resilient return member of the movable contact.
  • the maneuverable support carrying the movable contact comprises an elongate finger whose one end is fixed, which is at least locally elastically flexible between the open and closed positions of the movable contact of the first switch and which carries this contact. mobile remote from the fixed end.
  • the elongated finger has the shape of a blade on one side of which is the corresponding movable contact.
  • the blade has an elastically flexible elbow that extends a fixed mounting base, being at the fixed end of the finger.
  • the lever comprises a shaft which extends along said pivot axis and which carries the first and second lateral arms.
  • the transcription device comprises a crank with a crank arm pivoting about said pivot axis is rigidly associated with the lever shaft and carries a crankpin for receiving the input control, at a distance from this pivot axis.
  • a protection device 1 which is intended to be connected at the level of a power supply of an electric motor, to protect this motor, and which comprises a circuit breaker, a thermal relay and a contactor, a known manner in itself.
  • a housing 2 of the protective device 1 can be mounted and connected a signaling auxiliary 3.
  • This signaling auxiliary 3 has the role of expressing two different information on the protection device 1, such as the available state or not of the contactor of this protection device 1 and the triggering or not of the electrical protection.
  • the signaling auxiliary 3 comprises an electromechanical transcription device 4, which is mounted in a housing 5 to be enclosed by means of a cover not shown for the sake of clarity.
  • the device 4 is according to a first embodiment of the invention. More precisely, it has the function of transcribing a mechanical position into an electrical state and has two switches 6A and 6B intended to be actuated by the same single lever 7, which pivots on an axis X-X '.
  • a first pair of terminals 8A and 9A is provided for connecting the switch 6A in a first electrical circuit 10A, which is shown schematically in FIG. figure 5 and whose function is to transmit one of the two previously mentioned information.
  • a second pair of terminals 8B and 9B is provided for connecting the switch 6B in a second electrical circuit 10B, which is also schematically shown in FIG. figure 5 and whose function is to transmit the other information relating to the state of the circuit breaker 1.
  • the terminals 8A, 9A, 8B and 9B are aligned in the same row, along a rear face of the housing 5.
  • the switch 6A has two paired contacts intended to make an electrical connection by touching, namely a fixed contact 11 A and a contact 12A movable at least between two positions, which are an open position of separation and disconnection of the fixed contact 11 A and a closed position of contact and connection with this fixed contact.
  • the free end of a fixed arm 13A defines the fixed contact 11 A.
  • This fixed arm 13A is part of a conductive element 14A which electrically connects the fixed contact 11 A to the terminal 8A.
  • a finger 15 forms a manoeuvrable support carrying the movable contact 12A, this finger 15 and a conductive mounting member 16A electrically connect to the terminal 9A.
  • the finger 15 has the shape of a blade which has an elastically flexible bend 17 and which extends beyond this bend 17, by a mounting base 18. At a fixed end of the maneuverable finger 15, this base 18 is fixed by riveting to the mounting member 16A.
  • the movable contact 12A is located on one face of the finger 15, at a distance from the elastically flexible bend 17 and at the level of a movable end of the finger 15. The bend 17 tends to return the finger 15 to the fixed arm 13A, in a closed position of the switch 6A.
  • the switch 6B has the same constitution as the switch 6A, by being substantially symmetrical with respect to a plane passing through the axis of X-X 'pivoting. Its fixed contact 11B and its movable contact 12B are electrically connected respectively to the terminal 8B and the terminal 9B.
  • the support of the movable contact 12B is another maneuverable finger 15.
  • the piece forming the finger 15 of the switch 6A and that forming the finger 15 of the switch 6B are identical and mounted in the same manner.
  • the lever 7 is a single piece, which is shown alone in the figure 4 .
  • the lever 7 comprises a shaft 20, which extends along the pivot axis XX 'and each of the two ends is retained in a sliding bearing housing 5 so as to pivot.
  • the shaft 20 is provided with a crank 21 through which it is intended to be operated according to an input control received by the crankpin 22 of this crank 21.
  • the shaft 20 carries and rigidly associates two tilting lateral arms, which extend opposite each other in two opposite directions, and which are a maneuvering arm 23A of the switch 6A and an arm 23B of operation of the switch 6B.
  • the crank 21 is in a neutral position, meaningless, when the signaling auxiliary 3 is not in operation.
  • the fixed contact 11 A and the movable contact 12A are separated from each other by a distance D 1 . It is substantially the same fixed contacts 11 B and 12B mobile.
  • the distance D 1 is less than the minimum isolation distance that must be respected to avoid the occurrence of an arc when the circuits 10A and 10B are energized.
  • the crank 21 has been tilted to a first position in which it is maintained due to an input control in the form of a constant action C 1 on its crank pin 22.
  • the tilting of this crank 21 has led to a tilting of arms Maneuver 23A and 23B in the same direction about the axis X-X '.
  • the operating arm 23A has left the switch 6A to close by itself, under the effect of the elastic return produced by the blade defining the elbow 17 and the finger 15 of this switch 6A.
  • the operating arm 23B has pushed the finger 15 of the other switch 6B, in the opposite direction to the fixed contact 11 B, against the elastic return produced by the blade defining the elbow 17 and the finger 15 of this switch 6B.
  • the operating arm 23B exerts a thrust P 1 on the finger 15 of the switch 6B.
  • the fixed contact 11 B and the movable contact 12B are separated from each other by a distance D 2 , greater than the distance D 1 and at least equal to the minimum isolation distance that must be respected to avoid the occurrence of an arc when the circuit 10B is energized.
  • the definition of this minimum isolation distance is the subject of EN / IEC 60947-6-2, EN / IEC 60947-5-1, EN / IEC 60068-2-6, EN / IEC 60721-4-2 , EN / IEC 60947-5-4 and UL 508.
  • the crank 21 has been tilted to a second position in which it is held due to an input control under the form a C 2 constant action on the crank pin 22.
  • the actuating arm 23A holds the thrust P 1 on the finger 15 of the switch 6A.
  • the fixed contact 11A and the movable contact 12A are separated from each other by the distance D 2 , that is to say by a distance greater than or equal to the aforementioned minimum isolation distance.
  • the switch 6A is thus open, the switch 6B is closed.
  • the operating arm 23B is away from the corresponding finger 15.
  • the elastic return produced by the blade defining the bend 17 and the finger 15 of the switch 6B then exerts a calibrated clamping force of the movable contact 12B on the fixed contact 11B.
  • the current flowing in the closed circuit 10B is symbolized by the arrows I. It can flow in the direction indicated by these arrows I or in the opposite direction.
  • a transcription device 104 according to a second embodiment of the invention is shown in FIG. figure 8 .
  • a reference used hereafter to designate a part of the device 104 similar or equivalent to a referenced part of the device 4 is constructed in increasing by one hundred the reference identifying this part on the device 4.
  • the switch 106B is generally returned so that closing is effected by a displacement in the opposite direction of movement leading to the closing of the switch 6B.
  • the elastically flexible elbow 117 of the switch 106B and the elastically flexible elbow 17 of the switch 6B exert resilient reminders in opposite directions.
  • the operating arm 123B of the lever 107 is oriented to exert a thrust P 2 in the reverse direction of the thrust P 1 .
  • This operating arm 123B is further axially offset towards the fixed and movable contacts, relative to the actuating arm 123A.
  • the two switches 106A and 106B are kept closed by the elastic boosts produced within each of them by the blades forming the bends 117 and the fingers 115, while the actuating arms 123A and 123B are inactive.
  • the isolation distances such as the distance D 2 , as well as several forces related to the operations of the switches, can be easily determined by a suitable choice of the positions of the operating arms 23A, 23B, 123A and 123B along the axis X-X ', which is advantageous.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un dispositif de transcription d'une position mécanique en un état électrique, du type comprenant :

  • un premier interrupteur actionnable entre des états ouvert et fermé,
  • un deuxième interrupteur actionnable entre des états ouvert et fermé, et
  • un mécanisme de réception d'une commande mécanique d'entrée et d'actionnement des premier et deuxième interrupteurs en fonction de cette commande d'entrée.
The invention relates to a device for transcription of a mechanical position into an electrical state, of the type comprising:
  • a first switch operable between open and closed states,
  • a second switch operable between open and closed states, and
  • a mechanism for receiving a mechanical input and actuation command of the first and second switches according to this input command.

État de la techniqueState of the art

Dans la demande de brevet français FR-2 916 899 , il est décrit un auxiliaire de signalisation dont un dispositif de transcription logé dans une enveloppe est du type précité. Dans ce dispositif de transcription, les deux interrupteurs sont chacun à double contact et le mécanisme pour les actionner comporte un volet qui est destiné à basculer et alors entraîner avec lui, dans son mouvement, les portes-contacts mobiles des interrupteurs. Chaque porte-contact mobile est rappelé par un ressort à lame vers l'une de ses deux positions ouverte et fermé. Une fourchette est en outre accouplée à une manivelle du volet, de manière à pouvoir faire basculer celui-ci. Elle équipe l'un des deux bras d'un balancier dont l'axe de pivotement est orthogonal à l'axe de basculement du volet et des portes-contacts mobiles.In the French patent application FR-2 916 899 , there is described a signaling auxiliary of which a transcription device housed in an envelope is of the aforementioned type. In this transcription device, the two switches are each double-contact and the mechanism for actuating them comprises a flap which is intended to tilt and then carry with it, in its movement, the movable contact-holders of the switches. Each movable contact carrier is biased by a leaf spring towards one of its two open and closed positions. A fork is further coupled to a crank of the flap, so as to tilt it. It equips one of the two arms of a rocker whose pivot axis is orthogonal to the tilting axis of the flap and movable contact holders.

Le dispositif de transcription évoqué dans le paragraphe précédent est complexe. Sa complexité s'explique au moins en partie par la nécessité de satisfaire à divers impératifs, tels que des impératifs résultant d'interactions avec des dispositifs extérieurs disposés selon une organisation spatiale déterminée et tels que des contraintes résultant de l'accueil du dispositif de transcription dans un espace réduit aux dimensions préétablies. A cet égard, le choix d'interrupteurs à double contact est une résultante de la nécessité d'un faible encombrement.The transcription device mentioned in the previous paragraph is complex. Its complexity is at least partly explained by the need to satisfy various requirements, such as requirements resulting from interactions with external devices arranged according to a given spatial organization and such as constraints resulting from the reception of the transcription device in a reduced space with pre-established dimensions. In this respect, the choice of double-contact switches is a result of the need for a small footprint.

Objet de l'inventionObject of the invention

L'invention a au moins pour but de permettre qu'un dispositif de transcription du type précité puisse être simplifié tout en pouvant continuer à satisfaire à une ou plusieurs contraintes spatiales spécifiques.The object of the invention is at least to enable a transcription device of the aforementioned type to be simplified while still being able to satisfy one or more specific spatial constraints.

Selon l'invention, ce but est atteint grâce à un dispositif de transcription du type précité, dont le mécanisme comprend un levier dont un premier bras latéral basculant autour d'un axe de pivotement de ce levier et un deuxième bras latéral basculant autour du même axe de pivotement sont disposés respectivement sur un premier et un deuxième côté opposés par rapport audit axe de pivotement. Le premier bras latéral est un bras de manoeuvre du premier interrupteur, qui se trouve sur le premier côté par rapport audit axe de pivotement. Le deuxième bras latéral est un bras de manoeuvre du deuxième interrupteur, qui se trouve sur le deuxième côté, à l'opposé du premier côté, par rapport audit axe de pivotement.According to the invention, this object is achieved by means of a transcription device of the aforementioned type, the mechanism of which comprises a lever including a first lateral arm swinging about a pivot axis of this lever and a second lateral arm swinging around the same pivot axis are respectively disposed on opposite first and second sides with respect to said pivot axis. The first side arm is an operating arm of the first switch, which is on the first side with respect to said pivot axis. The second side arm is an operating arm of the second switch, which is on the second side, opposite the first side, with respect to said pivot axis.

Le dispositif de transcription selon l'invention peut incorporer une ou plusieurs autres caractéristiques avantageuses, isolément ou en combinaison, en particulier parmi celles définies ci-après.The transcription device according to the invention may incorporate one or more other advantageous characteristics, alone or in combination, in particular from those defined below.

Avantageusement, chacun des premier et deuxième interrupteurs comporte :

  • un contact fixe,
  • un contact mobile au moins entre une position ouverte, dans laquelle ce contact mobile est à l'écart du contact fixe, et une position fermée, dans laquelle le contact mobile et le contact fixe se touchent et établissent une connexion électrique, et
  • un support qui porte le contact mobile et qui est manoeuvrable entre une configuration de mise de ce contact mobile en position ouverte et une configuration de mise du même contact mobile en position fermée.
Advantageously, each of the first and second switches comprises:
  • a fixed contact,
  • a movable contact at least between an open position, in which said movable contact is away from the fixed contact, and a closed position, in which the movable contact and the fixed contact touch and establish an electrical connection, and
  • a support which carries the movable contact and which is operable between an engagement configuration of the movable contact in the open position and a setting of setting the same movable contact in the closed position.

De préférence, le premier bras latéral est un bras de manoeuvre du support manoeuvrable du premier interrupteur, tandis que le deuxième bras latéral est un bras de manoeuvre du support manoeuvrable du deuxième interrupteur.Preferably, the first lateral arm is an operating arm of the maneuverable support of the first switch, while the second lateral arm is an operating arm of the maneuverable support of the second switch.

Avantageusement, dans le premier interrupteur au moins, le support manoeuvrable portant le contact mobile est un conducteur de raccordement électrique de ce contact mobile à un circuit électrique.Advantageously, in the first switch at least, the maneuverable support carrying the movable contact is a conduct of electrical connection of this movable contact to an electrical circuit.

Avantageusement, le premier interrupteur au moins comporte un organe élastique de rappel de son contact mobile dans l'une des positions ouverte et fermée de ce contact mobile. De préférence, le premier bras latéral est un bras de poussée à l'encontre de l'organe élastique de rappel, sur le support manoeuvrable du premier interrupteur.Advantageously, the first switch at least comprises an elastic member for returning its movable contact in one of the open and closed positions of the movable contact. Preferably, the first lateral arm is a thrust arm against the resilient return member on the operable support of the first switch.

Avantageusement, l'organe élastique de rappel exerce un rappel élastique dans le sens d'une fermeture du premier interrupteur. De préférence, le premier bras latéral est basculant depuis une position active de retenue du premier interrupteur dans l'état ouvert à l'encontre de l'organe élastique de rappel, vers une position intermédiaire de fermeture du premier interrupteur, jusqu'à une position passive qui se trouve au-delà de la position intermédiaire dans le sens du rappel élastique et dans laquelle ce rappel élastique produit une force calibrée de fermeture du premier interrupteur, sans interférence du premier bras latéral.Advantageously, the elastic return member exerts an elastic return in the direction of closing the first switch. Preferably, the first lateral arm is tilting from an active position for retaining the first switch in the open state against the elastic return member, towards an intermediate position for closing the first switch, to a passive position which is beyond the intermediate position in the direction of the elastic return and wherein the elastic return produces a calibrated closing force of the first switch, without interference of the first side arm.

Avantageusement, dans le premier interrupteur au moins, le support manoeuvrable portant le contact mobile forme l'organe élastique de rappel de ce contact mobile.Advantageously, in the first switch at least, the maneuverable support carrying the movable contact forms the resilient return member of the movable contact.

Avantageusement, dans le premier interrupteur au moins, le support manoeuvrable portant le contact mobile comporte un doigt allongé dont une extrémité est fixe, qui est au moins localement flexible élastiquement entre les positions ouverte et fermée du contact mobile du premier interrupteur et qui porte ce contact mobile à distance de l'extrémité fixe.Advantageously, in the first switch at least, the maneuverable support carrying the movable contact comprises an elongate finger whose one end is fixed, which is at least locally elastically flexible between the open and closed positions of the movable contact of the first switch and which carries this contact. mobile remote from the fixed end.

Avantageusement, le doigt allongé possède la forme d'une lame sur une face duquel se trouve le contact mobile correspondant.Advantageously, the elongated finger has the shape of a blade on one side of which is the corresponding movable contact.

Avantageusement, la lame comporte un coude élastiquement flexible que prolonge une embase de montage fixée, se trouvant au niveau de l'extrémité fixe du doigt.Advantageously, the blade has an elastically flexible elbow that extends a fixed mounting base, being at the fixed end of the finger.

Avantageusement, le levier comporte un arbre qui s'étend selon ledit axe de pivotement et qui porte les premier et deuxième bras latéraux.Advantageously, the lever comprises a shaft which extends along said pivot axis and which carries the first and second lateral arms.

Avantageusement, le dispositif de transcription comporte une manivelle dont un bras de manivelle basculant autour dudit axe de pivotement est rigidement associé à l'arbre du levier et porte un maneton de réception de la commande d'entrée, à distance de cet axe de pivotement.Advantageously, the transcription device comprises a crank with a crank arm pivoting about said pivot axis is rigidly associated with the lever shaft and carries a crankpin for receiving the input control, at a distance from this pivot axis.

Description sommaire des dessinsBrief description of the drawings

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

  • la figure 1 est une vue partiellement éclatée, en perspective, d'un dispositif de protection de moteur et d'un auxiliaire de signalisation équipant ce dispositif de protection ;
  • la figure 2 est une vue en perspective représentant un boîtier de l'auxiliaire de signalisation de la figure 1, sans couvercle, et son contenu, à savoir un dispositif de transcription d'une position mécanique en un état électrique, selon un premier mode de réalisation de l'invention ;
  • la figure 3 est une vue en perspective où le dispositif de transcription de la figure 2 est représenté seul, sans le boîtier prévu pour le recevoir ;
  • la figure 4 est une vue en perspective d'un levier constitutif du dispositif de transcription de la figure 3 ;
  • la figure 5 est une vue qui est analogue à la figure 3 et où le dispositif de transcription de cette figure 3 est dans un premier état actif ;
  • la figure 6 est vue latérale où le dispositif de transcription de la figure 3 est dans le même premier état actif qu'à la figure 5 ;
  • la figure 7 est une vue qui est analogue à la figure 3 et où le dispositif de transcription de cette figure 3 est dans un deuxième état actif ;
  • la figure 8 est une vue qui est analogue à la figure 3 et qui représente un dispositif de transcription selon un deuxième mode de réalisation de l'invention ; et
  • la figure 9 est une vue en perspective d'un levier constitutif du dispositif de transcription de la figure 8.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention given as non-restrictive examples and represented in the accompanying drawings, among which:
  • the figure 1 is a partially exploded view, in perspective, of a motor protection device and a signaling auxiliary equipping this protection device;
  • the figure 2 is a perspective view showing a housing of the signaling auxiliary of the figure 1 without a lid, and its contents, namely a transcription device of a mechanical position in an electric state, according to a first embodiment of the invention;
  • the figure 3 is a perspective view where the transcription device of the figure 2 is represented alone, without the housing provided to receive it;
  • the figure 4 is a perspective view of a lever constituting the transcription device of the figure 3 ;
  • the figure 5 is a view that is analogous to the figure 3 and where the transcription device of this figure 3 is in a first active state;
  • the figure 6 is side view where the transcription device of the figure 3 is in the same first active state as at the figure 5 ;
  • the figure 7 is a view that is analogous to the figure 3 and where the transcription device of this figure 3 is in a second active state;
  • the figure 8 is a view that is analogous to the figure 3 and which represents a transcription device according to a second embodiment of the invention; and
  • the figure 9 is a perspective view of a lever constituting the transcription device of the figure 8 .

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

Sur la figure 1 est représenté un dispositif de protection 1, qui est destiné à être connecté au niveau d'un départ d'alimentation d'un moteur électrique, pour protéger ce moteur, et qui comprend un disjoncteur, un relai thermique et un contacteur, d'une manière connue en soi.On the figure 1 there is shown a protection device 1, which is intended to be connected at the level of a power supply of an electric motor, to protect this motor, and which comprises a circuit breaker, a thermal relay and a contactor, a known manner in itself.

Dans un logement 2 du dispositif de protection 1 peut être monté et raccordé un auxiliaire de signalisation 3. Cet auxiliaire de signalisation 3 a pour rôle d'exprimer deux renseignements différents sur le dispositif de protection 1, tels que l'état disponible ou non du contacteur de ce dispositif de protection 1 et le déclenchement ou non de la protection électrique.In a housing 2 of the protective device 1 can be mounted and connected a signaling auxiliary 3. This signaling auxiliary 3 has the role of expressing two different information on the protection device 1, such as the available state or not of the contactor of this protection device 1 and the triggering or not of the electrical protection.

Ainsi qu'on peut le voir à la figure 2, l'auxiliaire de signalisation 3 comporte un dispositif électromécanique de transcription 4, qui est monté dans un boîtier 5 pour y être enfermé au moyen d'un couvercle non représenté dans un souci de clarté.As can be seen at figure 2 , the signaling auxiliary 3 comprises an electromechanical transcription device 4, which is mounted in a housing 5 to be enclosed by means of a cover not shown for the sake of clarity.

Représenté seul à la figure 3, le dispositif 4 est selon un premier mode de réalisation de l'invention. Il a plus précisément pour fonction de transcrire une position mécanique en un état électrique et possède deux interrupteurs 6A et 6B destinés à être actionnés par un même levier 7 unique, qui pivote sur un axe X-X'.Represented alone at figure 3 , the device 4 is according to a first embodiment of the invention. More precisely, it has the function of transcribing a mechanical position into an electrical state and has two switches 6A and 6B intended to be actuated by the same single lever 7, which pivots on an axis X-X '.

Une première paire de bornes 8A et 9A est prévue pour raccorder l'interrupteur 6A dans un premier circuit électrique 10A, qui est représenté schématiquement à la figure 5 et qui a pour fonction de transmettre l'un des deux renseignements précédemment mentionnés. Une deuxième paire de bornes 8B et 9B est prévue pour raccorder l'interrupteur 6B dans un deuxième circuit électrique 10B, qui est également représenté schématiquement à la figure 5 et qui a pour fonction de transmettre l'autre renseignement relatif à l'état du disjoncteur 1. Les bornes 8A, 9A, 8B et 9B sont alignées dans une même rangée, le long d'une face arrière du boîtier 5.A first pair of terminals 8A and 9A is provided for connecting the switch 6A in a first electrical circuit 10A, which is shown schematically in FIG. figure 5 and whose function is to transmit one of the two previously mentioned information. A second pair of terminals 8B and 9B is provided for connecting the switch 6B in a second electrical circuit 10B, which is also schematically shown in FIG. figure 5 and whose function is to transmit the other information relating to the state of the circuit breaker 1. The terminals 8A, 9A, 8B and 9B are aligned in the same row, along a rear face of the housing 5.

L'interrupteur 6A comporte deux contacts appariés destinés à réaliser une connexion électrique en se touchant, à savoir un contact fixe 11 A et un contact 12A mobile au moins entre deux positions, qui sont une position ouverte de séparation et de déconnexion du contact fixe 11 A et une position fermée de contact et de connexion avec ce contact fixe. L'extrémité libre d'un bras fixe 13A définit le contact fixe 11 A. Ce bras fixe 13A fait partie d'un élément conducteur 14A qui raccorde électriquement le contact fixe 11 A à la borne 8A.The switch 6A has two paired contacts intended to make an electrical connection by touching, namely a fixed contact 11 A and a contact 12A movable at least between two positions, which are an open position of separation and disconnection of the fixed contact 11 A and a closed position of contact and connection with this fixed contact. The free end of a fixed arm 13A defines the fixed contact 11 A. This fixed arm 13A is part of a conductive element 14A which electrically connects the fixed contact 11 A to the terminal 8A.

Métallique et électriquement conducteur, un doigt 15 forme un support manoeuvrable portant le contact mobile 12A, que ce doigt 15 et un organe de montage conducteur 16A raccordent électriquement à la borne 9A.Metallic and electrically conductive, a finger 15 forms a manoeuvrable support carrying the movable contact 12A, this finger 15 and a conductive mounting member 16A electrically connect to the terminal 9A.

Le doigt 15 présente la forme d'une lame qui comporte un coude élastiquement flexible 17 et qui se prolonge au-delà de ce coude 17, par une embase de montage 18. Au niveau d'une extrémité fixe du doigt manoeuvrable 15, cette embase 18 est fixée par rivetage à l'organe de montage 16A. Le contact mobile 12A se trouve sur une face du doigt 15, à distance du coude élastiquement flexible 17 et au niveau d'une extrémité mobile de ce doigt 15. Le coude 17 tend à rappeler le doigt 15 vers le bras fixe 13A, dans une position fermée de l'interrupteur 6A.The finger 15 has the shape of a blade which has an elastically flexible bend 17 and which extends beyond this bend 17, by a mounting base 18. At a fixed end of the maneuverable finger 15, this base 18 is fixed by riveting to the mounting member 16A. The movable contact 12A is located on one face of the finger 15, at a distance from the elastically flexible bend 17 and at the level of a movable end of the finger 15. The bend 17 tends to return the finger 15 to the fixed arm 13A, in a closed position of the switch 6A.

L'interrupteur 6B possède la même constitution que l'interrupteur 6A, en lui étant sensiblement symétrique par rapport à un plan passant par l'axe de pivotement X-X'. Son contact fixe 11 B et son contact mobile 12B sont électriquement raccordés respectivement à la borne 8B et à la borne 9B. Le support du contact mobile 12B est un autre doigt manoeuvrable 15. La pièce formant le doigt 15 de l'interrupteur 6A et celle formant le doigt 15 de l'interrupteur 6B sont identiques et montées de la même manière.The switch 6B has the same constitution as the switch 6A, by being substantially symmetrical with respect to a plane passing through the axis of X-X 'pivoting. Its fixed contact 11B and its movable contact 12B are electrically connected respectively to the terminal 8B and the terminal 9B. The support of the movable contact 12B is another maneuverable finger 15. The piece forming the finger 15 of the switch 6A and that forming the finger 15 of the switch 6B are identical and mounted in the same manner.

Moulé en un matériau isolant, le levier 7 est une pièce d'un seul tenant, qui est représentée seule à la figure 4. Le levier 7 comporte un arbre 20, qui s'étend selon l'axe de pivotement X-X' et dont chacune des deux extrémités est retenue dans un palier lisse du boîtier 5 de manière à pouvoir y pivoter. L'arbre 20 est pourvu d'une manivelle 21 par l'intermédiaire de laquelle il est destiné à être manoeuvré en fonction d'une commande d'entrée reçue par le maneton 22 de cette manivelle 21.Molded in an insulating material, the lever 7 is a single piece, which is shown alone in the figure 4 . The lever 7 comprises a shaft 20, which extends along the pivot axis XX 'and each of the two ends is retained in a sliding bearing housing 5 so as to pivot. The shaft 20 is provided with a crank 21 through which it is intended to be operated according to an input control received by the crankpin 22 of this crank 21.

Disposé entre les interrupteurs 6A et 6B, l'arbre 20 porte et associe rigidement deux bras latéraux basculants, qui s'étendent à l'opposé l'un de l'autre, dans deux directions inverses, et qui sont un bras 23A de manoeuvre de l'interrupteur 6A et un bras 23B de manoeuvre de l'interrupteur 6B.Arranged between the switches 6A and 6B, the shaft 20 carries and rigidly associates two tilting lateral arms, which extend opposite each other in two opposite directions, and which are a maneuvering arm 23A of the switch 6A and an arm 23B of operation of the switch 6B.

Sur la figure 3, la manivelle 21 est dans une position intermédiaire neutre, sans signification, lorsque l'auxiliaire de signalisation 3 n'est pas en fonction. Le contact fixe 11 A et le contact mobile 12A sont séparés l'un de l'autre par une distance D1. Il en est sensiblement de même des contacts fixe 11 B et mobile 12B. La distance D1 est inférieure à la distance minimale d'isolement qui doit être respectée pour éviter l'occurrence d'un arc lorsque les circuits 10A et 10B sont sous tension.On the figure 3 , the crank 21 is in a neutral position, meaningless, when the signaling auxiliary 3 is not in operation. The fixed contact 11 A and the movable contact 12A are separated from each other by a distance D 1 . It is substantially the same fixed contacts 11 B and 12B mobile. The distance D 1 is less than the minimum isolation distance that must be respected to avoid the occurrence of an arc when the circuits 10A and 10B are energized.

Sur les figures 5 et 6, la manivelle 21 a été basculée vers une première position dans laquelle elle est maintenue du fait d'une commande d'entrée sous la forme d'une action constante C1 sur son maneton 22. Le basculement de cette manivelle 21 a conduit à un basculement des bras de manoeuvre 23A et 23B dans le même sens autour de l'axe X-X'. Lors de cela, le bras de manoeuvre 23A a laissé l'interrupteur 6A se fermer de lui-même, sous l'effet du rappel élastique produit par la lame définissant le coude 17 et le doigt 15 de cet interrupteur 6A. Dans le même temps, le bras de manoeuvre 23B a poussé le doigt 15 de l'autre interrupteur 6B, dans la direction opposée au contact fixe 11 B, à l'encontre du rappel élastique produit par la lame définissant le coude 17 et le doigt 15 de cet interrupteur 6B.On the figures 5 and 6 , the crank 21 has been tilted to a first position in which it is maintained due to an input control in the form of a constant action C 1 on its crank pin 22. The tilting of this crank 21 has led to a tilting of arms Maneuver 23A and 23B in the same direction about the axis X-X '. During this, the operating arm 23A has left the switch 6A to close by itself, under the effect of the elastic return produced by the blade defining the elbow 17 and the finger 15 of this switch 6A. At the same time, the operating arm 23B has pushed the finger 15 of the other switch 6B, in the opposite direction to the fixed contact 11 B, against the elastic return produced by the blade defining the elbow 17 and the finger 15 of this switch 6B.

Sur la figure 5, le bras de manoeuvre 23B exerce une poussée P1 sur le doigt 15 de l'interrupteur 6B. Le contact fixe 11 B et le contact mobile 12B sont séparés l'un de l'autre par une distance D2, supérieure à la distance D1 et au moins égale à la distance minimale d'isolement qui doit être respectée pour éviter l'occurrence d'un arc lorsque le circuit 10B est sous tension. La définition de cette distance minimale d'isolement fait l'objet des normes EN/CEI 60947-6-2, EN/CEI 60947-5-1, EN/CEI 60068-2-6, EN/CEI 60721-4-2, EN/CEI 60947-5-4 et UL 508.On the figure 5 the operating arm 23B exerts a thrust P 1 on the finger 15 of the switch 6B. The fixed contact 11 B and the movable contact 12B are separated from each other by a distance D 2 , greater than the distance D 1 and at least equal to the minimum isolation distance that must be respected to avoid the occurrence of an arc when the circuit 10B is energized. The definition of this minimum isolation distance is the subject of EN / IEC 60947-6-2, EN / IEC 60947-5-1, EN / IEC 60068-2-6, EN / IEC 60721-4-2 , EN / IEC 60947-5-4 and UL 508.

Toujours sur la figure 5, l'interrupteur 6A est fermé. Ainsi qu'on peut le voir à la figure 6, le bras de manoeuvre 23A n'agit alors plus sur le doigt 15 de cet interrupteur, en en étant écarté d'une distance de séparation S. De ce fait, ce doigt 15 n'est plus soumis qu'au rappel élastique agissant dans le sens d'une fermeture de l'interrupteur 6A. Ce rappel élastique exerce alors une force calibrée de serrage du contact mobile 12B sur le contact fixe 11 B, c'est-à-dire ce que l'on appelle généralement « l'effort de contact », ce qui est avantageux. Le courant passant dans le circuit 10A fermé est symbolisé par les flèches I. Il peut circuler dans le sens indiqué par ces flèches I ou dans le sens inverse.Always on the figure 5 switch 6A is closed. As can be seen at figure 6 the actuating arm 23A then no longer acts on the finger 15 of this switch, while being separated by a separation distance S. As a result, this finger 15 is no longer subject to the elastic return acting in the direction of closing the switch 6A. This elastic return then exerts a calibrated clamping force of the movable contact 12B on the fixed contact 11 B, that is to say what is generally called "the contact force", which is advantageous. The current flowing in the closed circuit 10A is symbolized by the arrows I. It can flow in the direction indicated by these arrows I or in the opposite direction.

Sur la figure 7, la manivelle 21 a été basculée vers une deuxième position dans laquelle elle est maintenue du fait d'une commande d'entrée sous la forme d'une action constante C2 sur son maneton 22. Le bras de manoeuvre 23A exerce la poussée P1 sur le doigt 15 de l'interrupteur 6A. Le contact fixe 11 A et le contact mobile 12A sont séparés l'un de l'autre par la distance D2, c'est-à-dire par une distance supérieure ou égale à la distance minimale d'isolement précitée. Alors que l'interrupteur 6A est ainsi ouvert, l'interrupteur 6B est fermé. Le bras de manoeuvre 23B est à l'écart du doigt 15 correspondant. Le rappel élastique produit par la lame définissant le coude 17 et le doigt 15 de l'interrupteur 6B exerce alors une force calibrée de serrage du contact mobile 12B sur le contact fixe 11B. Le courant passant dans le circuit 10B fermé est symbolisé par les flèches I. Il peut circuler dans le sens indiqué par ces flèches I ou dans le sens inverse.On the figure 7 the crank 21 has been tilted to a second position in which it is held due to an input control under the form a C 2 constant action on the crank pin 22. The actuating arm 23A holds the thrust P 1 on the finger 15 of the switch 6A. The fixed contact 11A and the movable contact 12A are separated from each other by the distance D 2 , that is to say by a distance greater than or equal to the aforementioned minimum isolation distance. While the switch 6A is thus open, the switch 6B is closed. The operating arm 23B is away from the corresponding finger 15. The elastic return produced by the blade defining the bend 17 and the finger 15 of the switch 6B then exerts a calibrated clamping force of the movable contact 12B on the fixed contact 11B. The current flowing in the closed circuit 10B is symbolized by the arrows I. It can flow in the direction indicated by these arrows I or in the opposite direction.

Un dispositif de transcription 104 selon un deuxième mode de réalisation de l'invention est représenté à la figure 8. Dans ce qui suit, on n'en décrit que ce par quoi il se distingue du dispositif 4. En outre, une référence utilisée ci-après pour désigner une partie du dispositif 104 analogue ou équivalente à une partie référencée du dispositif 4 est construite en augmentant de cent la référence repérant cette partie sur le dispositif 4.A transcription device 104 according to a second embodiment of the invention is shown in FIG. figure 8 . In what follows, only that which distinguishes it from the device 4 is described. In addition, a reference used hereafter to designate a part of the device 104 similar or equivalent to a referenced part of the device 4 is constructed in increasing by one hundred the reference identifying this part on the device 4.

L'interrupteur 106B est globalement retourné de sorte que sa fermeture s'effectue moyennant un déplacement de sens inverse du déplacement conduisant à la fermeture de l'interrupteur 6B. Le coude élastiquement flexible 117 de l'interrupteur 106B et le coude élastiquement flexible 17 de l'interrupteur 6B exercent des rappels élastiques de sens contraires. Ainsi qu'on peut le voir à la figure 9, le bras de manoeuvre 123B du levier 107 est orienté pour exercer une poussée P2 dans la direction inverse de la poussée P1. Ce bras de manoeuvre 123B est en outre décalé axialement vers les contacts fixes et mobiles, par rapport au bras de manoeuvre 123A.The switch 106B is generally returned so that closing is effected by a displacement in the opposite direction of movement leading to the closing of the switch 6B. The elastically flexible elbow 117 of the switch 106B and the elastically flexible elbow 17 of the switch 6B exert resilient reminders in opposite directions. As can be seen at figure 9 , the operating arm 123B of the lever 107 is oriented to exert a thrust P 2 in the reverse direction of the thrust P 1 . This operating arm 123B is further axially offset towards the fixed and movable contacts, relative to the actuating arm 123A.

Sur la figure 8, les deux interrupteurs 106A et 106B sont maintenus fermés par les rappels élastiques produits au sein de chacun d'eux, par les lames formant les coudes 117 et les doigts 115, tandis que les bras de manoeuvre 123A et 123B sont inactifs.On the figure 8 , the two switches 106A and 106B are kept closed by the elastic boosts produced within each of them by the blades forming the bends 117 and the fingers 115, while the actuating arms 123A and 123B are inactive.

Lorsque la manivelle 121 est basculée d'une quantité Q1, le bras de manoeuvre 123A exerce une poussée sur le doigt 115 de l'interrupteur 106 A et maintient ainsi celui-ci ouvert, tandis que le bras de manoeuvre 123B reste inactif et que l'interrupteur 106B est maintenu fermé.When the crank 121 is tilted by an amount Q 1 , the actuating arm 123A pushes on the finger 115 of the switch 106 A and thus keeps the latter open, while the operating arm 123B remains inactive and that the switch 106B is kept closed.

Lorsque la manivelle 121 est basculée d'une quantité Q2 supérieure à la quantité Q1, les bras de manoeuvre 123A et 123B maintiennent ouverts les deux interrupteurs 106A et 106B, en repoussant leurs doigts 115 respectifs.When the crank 121 is tilted by an amount Q 2 greater than the quantity Q 1 , the operating arms 123A and 123B keep the two switches 106A and 106B open, by pushing their respective fingers 115.

On notera que les distances d'isolement telles que la distance D2, ainsi que plusieurs efforts liés aux manoeuvres des interrupteurs, peuvent être aisément déterminées par un choix approprié des positions des bras de manoeuvre 23A, 23B, 123A et 123B selon l'axe de pivotement X-X', ce qui est avantageux.It will be noted that the isolation distances such as the distance D 2 , as well as several forces related to the operations of the switches, can be easily determined by a suitable choice of the positions of the operating arms 23A, 23B, 123A and 123B along the axis X-X ', which is advantageous.

Claims (11)

  1. Conversion device for converting a mechanical position into an electric state, comprising:
    - a first switch (6A; 106A) actionable between open and closed states,
    - a second switch (6B; 106B) actionable between open and closed states, and
    - a mechanism for receiving an input mechanical command (C1, C2; Q1, Q2) and for actuating the first and second switches (6A, 6B; 106A, 106B) according to this input command,
    characterized in that said mechanism comprises a lever (7; 107) having a first side arm (23A; 123A) and a second side arm (23B; 123B) which are tiltable about a same swiveling axis (X-X') of this lever and are arranged so that the first side arm (23A; 123A) and the second side arm (23B; 123B) extent respectively on a first side and a second side opposite relative to said swiveling axis (X-X'), the first side arm (23A; 123A) being an operating arm for operating the first switch (6A; 106A) which is on the first side relative to said swiveling axis (X-X'), the second side arm (23B; 123B) being an operating arm for operating the second switch (6B; 106B) which is on the second side, opposite the first side, relative to said swiveling axis (X-X').
  2. Conversion device according to claim 1, characterized in that each of the first and second switches (6A, 6B; 106A, 106B) comprises:
    - a fixed contact (11A, 11B),
    - a mobile contact (12A, 12B) mobile at least between an open position, in which this mobile contact is at a distance from the fixed contact (11A, 11B), and a closed position, in which the mobile contact (12A, 12B) and the fixed contact (11A, 11B) meet and establish an electric connection, and
    - a controllable support (15; 115) which bears the mobile contact (12A, 12B) and which is controllable between a configuration in which said mobile contact (12A, 12B) is set in the open position and a configuration in which said mobile contact (12A, 12B) is set in the closed position,
    the first side arm (23A; 123A) being an operating arm for operating the controllable support (15; 115) of the first switch (6A; 106A), the second side arm (23B; 123B) being an operating arm for operating the controllable support (15; 115) of the second switch (6B; 106B).
  3. Conversion device according to claim 2, characterized in that, at least in the first switch (6A; 106A), the controllable support (15; 115) bearing the mobile contact (12A) is a conductor (15; 115) for electrically connecting this mobile contact (12A) to an electric circuit (10A).
  4. Conversion device according to any one of claims 2 and 3, characterized in that at least the first switch (6A; 106A) comprises an elastic returning element (15; 115) for returning its mobile contact (12A) into one of the open and closed positions of this mobile contact, the first side arm (23A; 123A) being an arm for pushing, against the action of the elastic returning element (15; 115), on the controllable support (15; 115) of the first switch (6A; 106A).
  5. Conversion device according to claim 4, characterized in that the elastic returning element (15; 115) exerts an elastic return in the closing direction of the first switch (6A, 106A), the first side arm (23A; 123A) being tiltable from an active retaining position in which the first switch (6A; 106A) is retained in the open state against the action of the elastic returning element (15; 115), towards an intermediate position in which the first switch (6A; 106A) is closed, up to a passive position which is beyond the intermediate position in the direction of the elastic return and in which this elastic return generates a calibrated force closing the first switch (6A; 106A), without interference of the first side arm (23A; 123A).
  6. Conversion device according to any one of claims 4 and 5, characterized in that, at least in the first switch (6A; 106A), the controllable support (15; 115) bearing the mobile contact (12A) forms the elastic returning element (15; 115) for elastically returning this mobile contact.
  7. Conversion device according to claim 6, characterized in that, at least in the first switch (6A; 106A), the controllable support bearing the mobile contact (12A) comprises an elongated finger (15; 115) one end (18) of which is fixed, which is elastically flexible, at least locally, between the open and closed positions of the mobile contact (12A) of the first switch (6A; 106A) and which bears this mobile contact at a distance from the fixed end (18).
  8. Conversion device according to claim 7, characterized in that the elongated finger (15; 115) has the shape of a leaf on a face of which is located the corresponding mobile contact (12A).
  9. Conversion device according to claim 8, characterized in that the leaf comprises an elastically flexible elbow (17; 117) prolonged by a fixed mounting base (18) located at the fixed end of the elongated finger (15; 115).
  10. Conversion device according to any one of the preceding claims, characterized in that the lever (7; 107) comprises a shaft (20) which extends along said swiveling axis (X-X') and bears the first and second side arms (23A 23B; 123A, 123B).
  11. Conversion device according to claim 10, characterized in that it comprises a crank (21; 121) an arm of which tiltable about said swiveling axis (X-X') is rigidly associated with the shaft (20) of the lever (7; 107) and bears a crank pin (22) for receiving the input command (C1, C2; Q1, Q2), at a distance from said swiveling axis.
EP12354046.0A 2011-10-10 2012-10-02 Device for transcribing a mechanical position into an electrical state Active EP2581924B1 (en)

Applications Claiming Priority (1)

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FR1103079A FR2981192B1 (en) 2011-10-10 2011-10-10 DEVICE FOR TRANSCRIPTIONING A MECHANICAL POSITION INTO AN ELECTRICAL STATE

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EP2581924B1 true EP2581924B1 (en) 2014-05-14

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EP (1) EP2581924B1 (en)
JP (1) JP6129512B2 (en)
CN (1) CN103107047B (en)
BR (1) BR102012025817B1 (en)
CA (1) CA2791923C (en)
ES (1) ES2474145T3 (en)
FR (1) FR2981192B1 (en)

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IT201700088417A1 (en) * 2017-08-01 2019-02-01 Hike S R L Integrated electromechanical device.
CN112242265A (en) * 2020-11-11 2021-01-19 歌尔科技有限公司 Key assembly and intelligent wrist-worn device
CN113628902B (en) * 2021-08-24 2023-06-16 郑州航空工业管理学院 Electromechanical conversion device for aviation

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Publication number Priority date Publication date Assignee Title
JPS514257B1 (en) * 1970-12-28 1976-02-10
JPS60175335A (en) * 1984-02-20 1985-09-09 富士電機株式会社 Circuit breaker
FR2617331B1 (en) * 1987-06-26 1989-11-03 Telemecanique Electrique AUXILIARY CONTACT BLOCK FOR USE ON ELECTROMECHANICAL DEVICES OF DIFFERENT SIZES
JPH0538506Y2 (en) * 1988-05-12 1993-09-29
GB2285195B (en) * 1993-12-22 1997-04-23 Nokia Mobile Phones Ltd Telephone handset
FR2808119B1 (en) * 2000-04-19 2002-10-11 Abb Control Sa AUXILIARY BLOCK FOR MOUNTING ON AN ELECTRIC CONTACTOR
JP2003281955A (en) * 2002-03-25 2003-10-03 Toki Corporation Kk Actuator, switching apparatus using the same, and controller
US6756554B1 (en) * 2003-04-29 2004-06-29 Hon Hai Precision Ind. Co., Ltd. Tact switch
TWI276132B (en) * 2005-09-09 2007-03-11 Hon Hai Prec Ind Co Ltd A switch driver apparatus and electronic device employing the same
DE202005015448U1 (en) * 2005-09-30 2005-12-08 Siemens Ag Electromagnet actuated low voltage switch has contact carriers that can be assembled so as to operate in normally closed or normally open modes
KR100834618B1 (en) * 2006-11-21 2008-06-02 삼성전자주식회사 2-way key for portable terminal
FR2916899B1 (en) * 2007-06-01 2009-07-10 Schneider Electric Ind Sas CONTACT DEVICE FOR AN ELECTRICAL AND AUXILIARY SIGNALING APPARATUS COMPRISING SUCH A DEVICE

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BR102012025817A2 (en) 2016-04-19
EP2581924A1 (en) 2013-04-17
CN103107047B (en) 2017-07-28
JP6129512B2 (en) 2017-05-17
US20130087438A1 (en) 2013-04-11
JP2013084604A (en) 2013-05-09
US9287060B2 (en) 2016-03-15
ES2474145T3 (en) 2014-07-08
CA2791923C (en) 2020-02-18
CA2791923A1 (en) 2013-04-10
BR102012025817B1 (en) 2021-04-06
FR2981192A1 (en) 2013-04-12
FR2981192B1 (en) 2013-11-15
CN103107047A (en) 2013-05-15

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