EP0384790A1 - Electromagnetically or forcedly controlled switching apparatus - Google Patents

Electromagnetically or forcedly controlled switching apparatus Download PDF

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Publication number
EP0384790A1
EP0384790A1 EP90400147A EP90400147A EP0384790A1 EP 0384790 A1 EP0384790 A1 EP 0384790A1 EP 90400147 A EP90400147 A EP 90400147A EP 90400147 A EP90400147 A EP 90400147A EP 0384790 A1 EP0384790 A1 EP 0384790A1
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EP
European Patent Office
Prior art keywords
slide
housing
forced
movable
links
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90400147A
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German (de)
French (fr)
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EP0384790B1 (en
Inventor
Patrick Larcher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telemecanique SA
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La Telemecanique Electrique SA
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Publication of EP0384790A1 publication Critical patent/EP0384790A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H01H2050/328—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection with manual locking means having three positions, e.g. on-off-automatic

Definitions

  • the present invention relates to an electromagnetic control switch device for manually performing forced control of the contacts.
  • Such an apparatus may, for example, consist of a so-called day-night control switch.
  • the invention relates more precisely to a switch device of the contactor type with a front electromagnet.
  • the electromagnet has, on the one hand, a fixed armature located near a front face of the housing, on the other hand, a movable armature located at a distance from the front face and movable perpendicular thereto. this.
  • Such an apparatus comprises at least one pole provided with a movable contact bridge cooperating with fixed contacts and a part subject to the electromagnet to move the contact bridge in order to control the automatic opening and closing of the contacts.
  • a manual contact control button accessible on the front of the housing, is connected to the displacement part; this may be, depending on the case, either the movable armature of the electromagnet, or a part carrying the bridge or the contact bridges.
  • the transmission of movement between the control button and the movable armature of the electromagnet is effected by meshing between teeth carried by an extension of the button and a pinion carried by a rotary axis. ; this axis is itself provided with a cam for lifting the armature. But this realization is complicated and cumbersome.
  • the object of the invention is to simplify and make space-saving the mechanism which ensures the transmission of movement and force between the control button and the movement part of the bridge or contact bridges in a device with forced manual control of the type described.
  • the control button acts on the movement part of the bridge or contact bridges via: - a flat slide arranged on one side of the electromagnet, movable between a rest position and a working position and can be urged by a return spring, - at least one reversing link which is pivotally mounted on a fixed axis or bearing of the housing and which has a first arm cooperating with the slide and a second arm applicable on the displacement part to determine the manual closing or opening of the contacts.
  • the arrangement adopted is compact and simple to carry out. It is preferable to provide two reversing links, the first arms of which each cooperate with a notch or groove in the slide, the arrangement of the rods and the shape of the notches being determined to allow a balanced movement of the displacement part.
  • the inverting links are advantageously arranged to ensure that the total manual force to be exerted on the control button during the forced control of the contacts is approximately constant.
  • Each reversing link can consist of a round metal wire bent in the form of a crank; this realization is inexpensive, facilitates the pivoting of the rods and their sliding on the displacement part.
  • the slide and the control button form a single sliding part, movable parallel to the front face of the housing.
  • a single spring is then sufficient to return the button-slide sub-assembly to its rest position, for example in an automatic closing phase following a forced closing of the contacts.
  • the manual control button and the slide are separate parts, respectively movable parallel and perpendicular to the front face of the housing and cooperating with each other by means of a ramp and a notch intended for movement and , respectively, to maintain the slide in its forced control position.
  • the notches of the slide have their opposite ends bent or curved and that the links are stressed by a common tension spring.
  • the electromagnetic control switch device illustrated in the figures is a multipole contactor of the modular type with forced operation, for example usable in "day-night" control.
  • This contactor comprises a housing 10, the front face 11 of which has a window 12 in which a manual control button 13 can be accessed, capable of occupying two positions: automatic control (“AUTO”) and forced operation (“I”).
  • AUTO automatic control
  • I forced operation
  • O third stop position
  • holes A1, A2 are provided for the screws of the control terminals and holes 14 for the power terminals of the various poles.
  • the locations of the terminals have been denoted 15, 16 in FIG. 4.
  • the rear face 17 of the housing is provided with elements specific to mounting in particular on a standardized profile.
  • the side faces of the housing are marked 18, 19.
  • a front electromagnet 20 which comprises a coil 21, electrically connected to the terminals A1, A2, a magnetic circuit or fixed armature 22 close to the front face 11 of the housing and a remote magnetic circuit or armature 23 of the front face 11.
  • the electromagnet 20 has an axis of symmetry PP ′ (FIG. 4) which corresponds to a plane of symmetry of the housing, but which could of course be offset with respect to it.
  • the movable frame 23 is subject to a return spring 24 and it is coupled to a contact-carrying part 25 which houses contact bridges 26 urged by contact pressure springs 27.
  • Each contact bridge corresponds to a pole and has two contacts 28 each cooperating with a fixed contact 29 to ensure a double break (see Figures 3, 5 and 6).
  • the automatic (electromagnetic) or forced (manual) closing of the contacts is carried out as follows.
  • the armature 23 rises to the position indicated in Figures 3 and 5, it drives the contact carrier 25 and therefore the bridges 26 until the application of the movable contacts on the fixed contacts 29, then the crushing springs 27.
  • the contact carrier 25 is applied by an appropriate bearing against the bridges 26 and constrains them to go down, so that the movable contacts 28 separate from the fixed contacts 29.
  • the contactor comprises a flat slide 30 integral with the manual control button 13 so as to form a thin sub-assembly, essentially housed between the electromagnet and the side face 18 of the housing and movable parallel to the front face 11 of the housing.
  • the slide 30 has a general shape of T whose wing has towards its ends two notches 31a, 31b in the shape of L.
  • the two notches 31 are mutually offset by 90 ° while being located substantially at the same distance from the face 11 .
  • a link 32a, 32b cooperates with each notch 31a, 31b.
  • the links 32 have a form of crank obtained by bending a round metal wire (see FIG. 11). They comprise in side view (see FIG. 4) two arms 33, 34 which are formed by folded parts of the wire and whose respective ends 35, 36 cooperate respectively with the slide 30 and with a face 23a of the armature 23 opposite to the face 11 of the housing.
  • the end 35 of the arm 33 is formed by a free end of the wire, while the end 36 of the arm 34 is formed by a crank pin 37 of the wire.
  • Two bearing zones 38, 39 located on each side of the crank pin 37 are housed in fixed conformations 40 of the housing to determine fixed axes of rotation 41 for the links 32.
  • a return spring 42 relatively weak compared to the spring 24 of the electromagnet is housed in a recess 43 of the slide 30 and is applied, on the one hand, against the latter, on the other hand, against a stop fixed 44 of the housing which also serves as a guide piece for the slide.
  • the links pivot at an angle of less than 90 °.
  • the button 13 - slide 30 sub-assembly moves to the right ( Figure 8) by compressing the spring 42, and the edges of the notches 31 constrain the ends 35 of the links to come to the bottom of the wings of the notches which are perpendicular to the face 11.
  • the links pivot around the axes 41 and their arms 34 stand up , which means that the crank pins 37 raise the movable armature 23 ( Figure 8) and that the contacts close ( Figure 5). It can be noted that a slight air gap "e" remains between the frames 22, 23.
  • the sides of the notches 31 are suitably curved to facilitate the movement of the ends 35 of the links.
  • the link 32a is biased by the edge of the notch 31a in the direction C which is perpendicular to its arm 33.
  • the tangential component F1a of the force applied to the link is maximum.
  • the link 32b is strongly inclined relative to the direction C; it follows that it is stressed by a reduced tangential component F1b.
  • a third position can be provided for the control button 13.
  • a finger or an insulating screen cuts the supply of the coil 21 by acting for example on an elastic blade contact. .
  • the notches 31 have horizontal wings housing the ends 35 of the rods during the movement of the slide-button sub-assembly from the automatic on position to the stop and vice position. -versed.
  • control button 13 is distinct from the slide 30. It acts by means of a ramp 50 on an inclined face 51 of the slide.
  • the ramp 50 ends with a notch 52 in which is housed, at the end of the forced travel stroke, a point 53 of the slide; other equivalent fastening elements can, of course, be substituted for elements 52, 53.
  • the slide also has a T shape, the wing of which has two notches 31 substantially parallel to the face 11, in which the ends 35 of the two links 32 are housed.
  • the links are similar, but can of course take different forms of the type illustrated by the previous embodiment.
  • a weak tension spring 54 connects the ends 35 of the rods and serves to return the slide and the rods to their rest position; a spring serves to return the button 13 to its automatic operating position.
  • Figures 13 to 15 illustrate the operation of this alternative embodiment.
  • the manual control button 13 allows the slide 30 to approach the face 11 under the effect of the spring 54; the links 32 are erased under the effect of the same spring ( Figure 13).
  • Figure 14 In forced operation ( Figure 14), the slide, which has been forced to move away from the face 11 by the ramp 50 of the button 13, remains held in position by the notch 52, while the rods 32 are raised and raise the armature 23.
  • the ends 35 of the links are then housed near the inclined ends 55 of the notches 31.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Magnetically Actuated Valves (AREA)
  • Push-Button Switches (AREA)
  • Tumbler Switches (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Brushes (AREA)
  • Electromagnets (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Slide Switches (AREA)

Abstract

Electromagnetically controlled switching apparatus in which forced control of the contacts can be carried out manually. A manual control button (13) activates a part for moving the contact bridges via a slider (30) constrained by a return spring (42) and two hinged reversing link-rods (32a, 32b). <IMAGE>

Description

La présente invention concerne un appareil interrupteur à commande électromagnétique permettant de réaliser manuelle­ment une commande forcée des contacts. Un tel appareil peut, par exemple, consister en un contacteur à commande dite jour-nuit.The present invention relates to an electromagnetic control switch device for manually performing forced control of the contacts. Such an apparatus may, for example, consist of a so-called day-night control switch.

L'invention concerne plus précisément un appareil interrup­teur du genre contacteur à électro-aimant frontal. Dans cet appareil, l'électro-aimant présente, d'une part, une arma­ture fixe située près d'une face avant du boîtier, d'autre part, une armature mobile située à distance de la face avant et déplaçable perpendiculairement à celle-ci.The invention relates more precisely to a switch device of the contactor type with a front electromagnet. In this device, the electromagnet has, on the one hand, a fixed armature located near a front face of the housing, on the other hand, a movable armature located at a distance from the front face and movable perpendicular thereto. this.

Un tel appareil comporte au moins un pôle muni d'un pont de contact mobile coopérant avec des contacts fixes et une pièce assujettie à l'électro-aimant pour déplacer le pont de contact afin de commander l'ouverture et la fermeture auto­matiques des contacts. Un bouton de commande manuelle des contacts, accessible sur la face avant du boîtier, est relié à la pièce de déplacement ; celle-ci peut être, selon les cas, soit l'armature mobile de l'électro-aimant, soit une pièce portant le pont ou les ponts de contact.Such an apparatus comprises at least one pole provided with a movable contact bridge cooperating with fixed contacts and a part subject to the electromagnet to move the contact bridge in order to control the automatic opening and closing of the contacts. A manual contact control button, accessible on the front of the housing, is connected to the displacement part; this may be, depending on the case, either the movable armature of the electromagnet, or a part carrying the bridge or the contact bridges.

Dans certains appareils connus du type décrit, la transmis­sion du mouvement entre le bouton de commande et l'armature mobile de l'électro-aimant s'effectue par engrènement entre des dents portées par un prolongement du bouton et un pignon porté par un axe rotatif ; cet axe est lui-même muni d'une came pour soulever l'armature. Mais cette réalisation est compliquée et encombrante.In certain known devices of the type described, the transmission of movement between the control button and the movable armature of the electromagnet is effected by meshing between teeth carried by an extension of the button and a pinion carried by a rotary axis. ; this axis is itself provided with a cam for lifting the armature. But this realization is complicated and cumbersome.

L'invention a pour but de simplifier et rendre peu encom­brant le mécanisme qui assure la transmission de mouvement et d'effort entre le bouton de commande et la pièce de déplacement du pont ou des ponts de contact dans un appareil à commande manuelle forcée du type décrit.The object of the invention is to simplify and make space-saving the mechanism which ensures the transmission of movement and force between the control button and the movement part of the bridge or contact bridges in a device with forced manual control of the type described.

Elle a aussi pour but de permettre, le cas échéant, d'obte­nir aisément un retour automatique du bouton de commande et du mécanisme de transmission à leur position de repos, ainsi que de régulariser l'effort à exercer sur le bouton de commande pour le porter à sa position de travail ou de commande forcée.It also aims to allow, if necessary, to easily obtain an automatic return of the control button and the transmission mechanism to their rest position, as well as to regularize the force to be exerted on the control button for the bring to its working or forced control position.

Selon l'invention, le bouton de commande agit sur la pièce de déplacement du pont ou des ponts de contact via :
- un coulisseau plat disposé sur un côté de l'électro-­aimant, déplaçable entre une position de repos et une position de travail et sollicitable par un ressort de rappel,
- au moins une biellettre d'inversion qui est montée pivo­tante sur un axe ou palier fixe du boîtier et qui présente un premier bras coopérant avec le coulisseau et un deuxié­me bras applicable sur la pièce de déplacement pour déter­miner la fermeture ou l'ouverture manuelle des contacts.According to the invention, the control button acts on the movement part of the bridge or contact bridges via:
- a flat slide arranged on one side of the electromagnet, movable between a rest position and a working position and can be urged by a return spring,
- at least one reversing link which is pivotally mounted on a fixed axis or bearing of the housing and which has a first arm cooperating with the slide and a second arm applicable on the displacement part to determine the manual closing or opening of the contacts.

La disposition adoptée est peu encombrante et simple à réaliser. Il est préférable de prévoir deux biellettes d'inversion dont les premiers bras coopèrent chacun avec une échancrure ou rainure du coulisseau, l'agencement des biellettes et la forme des échancrures étant déterminés pour permettre un mouvement équilibré de la pièce de déplacement.The arrangement adopted is compact and simple to carry out. It is preferable to provide two reversing links, the first arms of which each cooperate with a notch or groove in the slide, the arrangement of the rods and the shape of the notches being determined to allow a balanced movement of the displacement part.

Les biellettes d'inversion sont avantageusement agencées pour assurer que l'effort manuel total à exercer sur le bouton de commande au cours de la commande forcée des contacts soit approximativement constant.The inverting links are advantageously arranged to ensure that the total manual force to be exerted on the control button during the forced control of the contacts is approximately constant.

Chaque biellette d'inversion peut être constituée par un fil métallique rond plié en forme de manivelle ; cette réalisa­tion est peu coûteuse, facilite le pivotement des biellettes et leur glissement sur la pièce de déplacement.Each reversing link can consist of a round metal wire bent in the form of a crank; this realization is inexpensive, facilitates the pivoting of the rods and their sliding on the displacement part.

Dans un mode de réalisation préféré, le coulisseau et le bouton de commande forment une pièce coulissante unique, déplaçable parallèlement à la face avant du boîtier. Un seul ressort suffit alors pour rappeler le sous-ensemble bouton-­coulisseau à sa position de repos, par exemple dans une phase de fermeture automatique succédant à une fermeture forcée des contacts.In a preferred embodiment, the slide and the control button form a single sliding part, movable parallel to the front face of the housing. A single spring is then sufficient to return the button-slide sub-assembly to its rest position, for example in an automatic closing phase following a forced closing of the contacts.

Dans un autre mode de réalisation, le bouton de commande manuelle et le coulisseau sont des pièces distinctes, respectivement déplaçables parallèlement et perpendiculai­rement à la face avant du boîtier et coopérant entre elles au moyen d'une rampe et d'un cran destinés au déplacement et, respectivement, au maintien du coulisseau dans sa posi­tion de commande forcée.In another embodiment, the manual control button and the slide are separate parts, respectively movable parallel and perpendicular to the front face of the housing and cooperating with each other by means of a ramp and a notch intended for movement and , respectively, to maintain the slide in its forced control position.

Dans ce cas, il est intéressant que les échancrures du coulisseau aient leurs extrémités opposées coudées ou incur­vées et que les biellettes soient sollicitées par un ressort commun de traction.In this case, it is advantageous that the notches of the slide have their opposite ends bent or curved and that the links are stressed by a common tension spring.

La description qui suit d'un exemple de réalisation non limitatif est faite en regard des dessins annexés et permet­tra d'expliciter les caractéristiques et avantages de l'invention.

  • La figure 1 est une élévation de face d'un contacteur à marche forcée conforme à l'invention ;
  • La figure 2 est une vue similaire du contacteur avec arrachement partiel ;
  • La figure 3 est une vue schématique en coupe agrandie de ce contacteur dans un plan perpendiculaire au plan des figures 1 et 2 ;
  • La figure 4 est une élévation schématique en coupe également agrandie du contacteur, selon la flèche B ;
  • Les figures 5 et 6 montrent, à plus grande échelle, une partie du mécanisme de commande forcée dans les positions respectives de fermeture forcée et d'ouver­ture des contacts ;
  • Les figures 7 à 10 illustrent le fonctionnement du contacteur ;
  • La figure 11 est une vue en perspective d'une biellet­te d'inversion ;
  • La figure 12 montre en coupe schématique, similaire à celle de la figure 4, une variante de réalisation ;
  • Les figures 13 à 15 illustrent un détail du contacteur de la figure 12 dans différentes positions de fonc­tionnement.
The following description of a non-limiting exemplary embodiment is made with reference to the appended drawings and will make it possible to explain the characteristics and advantages of the invention.
  • Figure 1 is a front elevation of a forced operation switch according to the invention;
  • Figure 2 is a similar view of the contactor with partial cutaway;
  • Figure 3 is a schematic enlarged sectional view of this contactor in a plane perpendicular to the plane of Figures 1 and 2;
  • Figure 4 is a schematic elevation in section also enlarged of the contactor, according to arrow B;
  • Figures 5 and 6 show, on a larger scale, a part of the forced control mechanism in the respective positions of forced closing and opening of the contacts;
  • Figures 7 to 10 illustrate the operation of the contactor;
  • Figure 11 is a perspective view of an inverting link;
  • Figure 12 shows in schematic section, similar to that of Figure 4, an alternative embodiment;
  • Figures 13 to 15 illustrate a detail of the contactor of Figure 12 in different operating positions.

L'appareil interrupteur à commande électromagnétique illus­tré sur les figures est un contacteur multipolaire de type modulaire à marche forcée, par exemple utilisable en comman­de dité "jour-nuit".The electromagnetic control switch device illustrated in the figures is a multipole contactor of the modular type with forced operation, for example usable in "day-night" control.

Ce contacteur comprend un boîtier 10 dont la face avant 11 présente une fenêtre 12 dans laquelle est accessible un bouton de commande manuelle 13 susceptible d'occuper deux positions : commande automatique ("AUTO") et marche forcée ("I"). Une troisième position d'arrêt ("O") peut également être prévue.This contactor comprises a housing 10, the front face 11 of which has a window 12 in which a manual control button 13 can be accessed, capable of occupying two positions: automatic control ("AUTO") and forced operation ("I"). A third stop position ("O") can also be provided.

En retrait par rapport à la face avant 12 sont ménagés des orifices A1, A2 pour les vis des bornes de commande et des orifices 14 pour les bornes de puissance des divers pôles. Les emplacements des bornes ont été notés 15, 16 sur la figure 4. La face arrière 17 du boîtier est munie d'éléments propres au montage notamment sur un profilé normalisé. Les faces latérales du boîtier sont repérés 18, 19.Set back from the front face 12, holes A1, A2 are provided for the screws of the control terminals and holes 14 for the power terminals of the various poles. The locations of the terminals have been denoted 15, 16 in FIG. 4. The rear face 17 of the housing is provided with elements specific to mounting in particular on a standardized profile. The side faces of the housing are marked 18, 19.

Dans le boîtier 10 est logé un électro-aimant frontal 20 qui comprend une bobine 21, électriquement reliée aux bornes A1, A2, un circuit magnétique ou armature fixe 22 proche de la face avant 11 du boîtier et un circuit magnétique ou armatu­re mobile 23 distant de la face avant 11. L'électro-aimant 20 présente un axe de symétrie P-P′ (figure 4) qui corres­pond à un plan de symétrie du boîtier, mais qui pourrait bien sûr être décalé par rapport à lui.In the housing 10 is housed a front electromagnet 20 which comprises a coil 21, electrically connected to the terminals A1, A2, a magnetic circuit or fixed armature 22 close to the front face 11 of the housing and a remote magnetic circuit or armature 23 of the front face 11. The electromagnet 20 has an axis of symmetry PP ′ (FIG. 4) which corresponds to a plane of symmetry of the housing, but which could of course be offset with respect to it.

L'armature mobile 23 est assujettie à un ressort de rappel 24 et elle est attelée à une pièce porte-contacts 25 qui loge des ponts de contact 26 sollicités par des ressorts de pression de contact 27. Chaque pont de contact correspond à un pôle et comporte deux contacts 28 coopérant chacun avec un contact fixe 29 pour assurer une double coupure (voir figures 3, 5 et 6).The movable frame 23 is subject to a return spring 24 and it is coupled to a contact-carrying part 25 which houses contact bridges 26 urged by contact pressure springs 27. Each contact bridge corresponds to a pole and has two contacts 28 each cooperating with a fixed contact 29 to ensure a double break (see Figures 3, 5 and 6).

La fermeture automatique (électromagnétique) ou forcée (manuelle) des contacts s'effectue de la manière suivante. Lorsque l'armature 23 monte jusqu'à la position indiquée sur les figures 3 et 5, elle entraîne le porte-contacts 25 et donc les ponts 26 jusqu'à l'application des contacts mobiles sur les contacts fixes 29, puis l'écrasement des ressorts 27. Lorsque l'armature 23 redescend vers la position des figures 4 et 6, le porte-contacts 25 s'applique par une portée appropriée contre les ponts 26 et les contraint à descendre, de sorte que les contacts mobiles 28 se séparent des contacts fixes 29.The automatic (electromagnetic) or forced (manual) closing of the contacts is carried out as follows. When the armature 23 rises to the position indicated in Figures 3 and 5, it drives the contact carrier 25 and therefore the bridges 26 until the application of the movable contacts on the fixed contacts 29, then the crushing springs 27. When the armature 23 descends towards the position of FIGS. 4 and 6, the contact carrier 25 is applied by an appropriate bearing against the bridges 26 and constrains them to go down, so that the movable contacts 28 separate from the fixed contacts 29.

Le contacteur comprend un coulisseau plat 30 solidaire du bouton de commande manuelle 13 de manière à former un sous-­ensemble de faible épaisseur, essentiellement logé entre l'électro-aimant et la face latérale 18 du boîtier et mobile parallèlement à la face avant 11 du boîtier.The contactor comprises a flat slide 30 integral with the manual control button 13 so as to form a thin sub-assembly, essentially housed between the electromagnet and the side face 18 of the housing and movable parallel to the front face 11 of the housing.

Le coulisseau 30 a une forme générale de T dont l'aile présente vers ses extrémités deux échancrures 31a, 31b en forme de L. Les deux échancrures 31 sont mutuellement déca­lées de 90° tout en étant situées sensiblement à la même distance de la face 11.The slide 30 has a general shape of T whose wing has towards its ends two notches 31a, 31b in the shape of L. The two notches 31 are mutually offset by 90 ° while being located substantially at the same distance from the face 11 .

Une biellette 32a, 32b coopère avec chaque échancrure 31a, 31b. Les biellettes 32 ont une forme de manivelle obtenue par pliage d'un fil métallique rond (voir figure 11). Elles comprennent en vue latérale (voir figure 4) deux bras 33, 34 qui sont formés par des parties pliées du fil et dont les extrémités respectives 35, 36 coopèrent respectivement avec le coulisseau 30 et avec une face 23a de l'armature 23 opposée à la face 11 du boîtier. L'extrémité 35 du bras 33 est formée par une extrémité libre du fil, tandis que l'extrémité 36 du bras 34 est formée par un maneton 37 du fil. Deux zones de palier 38, 39 situées de chaque côté du maneton 37 sont logées dans des conformations fixes 40 du boîtier pour déterminer des axes fixes de rotation 41 pour les biellettes 32.A link 32a, 32b cooperates with each notch 31a, 31b. The links 32 have a form of crank obtained by bending a round metal wire (see FIG. 11). They comprise in side view (see FIG. 4) two arms 33, 34 which are formed by folded parts of the wire and whose respective ends 35, 36 cooperate respectively with the slide 30 and with a face 23a of the armature 23 opposite to the face 11 of the housing. The end 35 of the arm 33 is formed by a free end of the wire, while the end 36 of the arm 34 is formed by a crank pin 37 of the wire. Two bearing zones 38, 39 located on each side of the crank pin 37 are housed in fixed conformations 40 of the housing to determine fixed axes of rotation 41 for the links 32.

Un ressort de rappel 42 relativement faible par rapport au ressort 24 de l'électro-aimant est logé dans un évidement 43 du coulisseau 30 et s'applique, d'une part, contre celui-ci, d'autre part, contre une butée fixe 44 du boîtier qui sert également de pièce-guide pour le coulisseau. Quand le coulisseau se déplace selon la direction C (figure 4), les biellettes pivotent d'un angle inférieur à 90°.A return spring 42 relatively weak compared to the spring 24 of the electromagnet is housed in a recess 43 of the slide 30 and is applied, on the one hand, against the latter, on the other hand, against a stop fixed 44 of the housing which also serves as a guide piece for the slide. When the slide moves in direction C (Figure 4), the links pivot at an angle of less than 90 °.

Le fonctionnement du mode de réalisation décrit va être expliqué maintenant en regard des figures 5 à 10.The operation of the described embodiment will now be explained with reference to FIGS. 5 to 10.

Si l'on suppose que le bouton 13 est en position de marche automatique ("AUTO") alors que la bobine 21 de l'électro-­aimant n'est pas alimentée, l'armature mobile 23 est dans la position indiquée figure 10, laissant un entrefer L. Les biellettes 32 sont au repos avec leurs bras 34 effacés.If it is assumed that the button 13 is in the automatic operating position ("AUTO") while the coil 21 of the electromagnet is not supplied, the movable armature 23 is in the position indicated in FIG. 10, leaving an air gap L. The links 32 are at rest with their arms 34 erased.

Dès que la bobine 21 de l'électro-aimant est alimentée par passage d'un courant entre les bornes 15, 16, l'armature mobile 23 est attirée contre l'armature fixe 22 (figure 7). Les biellettes 32 restent dans leur position effacée de repos.As soon as the coil 21 of the electromagnet is supplied by passing a current between the terminals 15, 16, the movable armature 23 is drawn against the fixed armature 22 (FIG. 7). The links 32 remain in their retracted rest position.

Si l'on porte le bouton 13 en position de marche forcée ("I") alors que la bobine 21 de l'électro-aimant n'est pas alimentée, le sous-ensemble bouton 13 - coulisseau 30 se déplace vers la droite (figure 8) en comprimant le ressort 42, et les bords des échancrures 31 contraignent les extrémités 35 des biellettes à venir au fond des ailes des échancrures qui sont perpendiculaires à la face 11. Les biellettes pivotent autour des axes 41 et leurs bras 34 se dressent, ce qui signifie que les manetons 37 soulèvent l'armature mobile 23 (figure 8) et que les contacts se ferment (figure 5). On peut noter qu'un léger entrefer "e" subsiste entre les armatures 22, 23.If the button 13 is carried in the forced on position ("I") while the coil 21 of the electromagnet is not supplied, the button 13 - slide 30 sub-assembly moves to the right ( Figure 8) by compressing the spring 42, and the edges of the notches 31 constrain the ends 35 of the links to come to the bottom of the wings of the notches which are perpendicular to the face 11. The links pivot around the axes 41 and their arms 34 stand up , which means that the crank pins 37 raise the movable armature 23 (Figure 8) and that the contacts close (Figure 5). It can be noted that a slight air gap "e" remains between the frames 22, 23.

Lorsqu'on alimente la bobine 21 de l'électro-aimant après cette fermeture opérée manuellement, l'armature mobile 23 s'applique contre l'armature fixe 22 (figure 9) de sorte que les biellettes 32 sont libérées de l'effort du ressort 24. Sous l'action du faible ressort 42, le sous-ensemble bouton 13 - coulisseau 30 revient vers la gauche (flèche D) et les biellettes 32 pivotent en sens horaire autour des axes 41 (flèches E) étant donné que leurs extrémités 35 sont forcées de redescendre dans les ailes verticales des échancrures. Le mécanisme vient ainsi jusqu'à la position de marche automa­tique illustrée figure 7.When the coil 21 of the electromagnet is supplied after this manually operated closure, the movable armature 23 is applied against the fixed armature 22 (FIG. 9) so that the rods 32 are released from the force of the spring 24. Under the action of the weak spring 42, the button 13 - slide 30 sub-assembly returns to the left (arrow D) and the links 32 pivot clockwise around the axes 41 (arrows E) since their ends 35 are forced to descend into the vertical wings of the notches. The mechanism thus comes to the automatic on position illustrated in figure 7.

Lorsque l'alimentation de la bobine est ensuite interrompue, le mécanisme revient à la position de repos de la figure 10.When the supply to the coil is then interrupted, the mechanism returns to the rest position in FIG. 10.

Il convient d'observer que les flancs des échancrures 31 sont convenablement incurvés pour faciliter le mouvement des extrémités 35 des biellettes.It should be observed that the sides of the notches 31 are suitably curved to facilitate the movement of the ends 35 of the links.

L'effort nécessaire pour amener le bouton de commande 13 de sa position de marche automatique à sa position de marche forcée est rendu sensiblement constant grâce à la configura­tion différenciée des biellettes.The effort required to bring the control button 13 from its automatic on position to its forced on position is made substantially constant thanks to the differentiated configuration of the links.

Au début d'un mouvement de "marche forcée", la biellette 32a est sollicitée par le bord de l'échancrure 31a selon la direction C qui est perpendiculaire à son bras 33. La compo­sante tangentielle F1a de l'effort appliqué à la biellette est maximale. En revanche, la biellette 32b est fortement inclinée par rapport à la direction C ; il en résulte qu'elle est sollicitée par une composante tangentielle F1b réduite.At the start of a "forced march" movement, the link 32a is biased by the edge of the notch 31a in the direction C which is perpendicular to its arm 33. The tangential component F1a of the force applied to the link is maximum. On the other hand, the link 32b is strongly inclined relative to the direction C; it follows that it is stressed by a reduced tangential component F1b.

En fin de mouvement (voir figure 5), la composante tangen­tielle F2a qui sollicite la biellette 32a est réduite en raison de l'inclinaison du bras 34, tandis que la composante tangentielle F2b qui sollicite la biellette 32b est maxima­le. On parvient ainsi à rendre sensiblement constante la somme F1 + F2 des efforts transmis par le coulisseau aux biellettes, donc le couple imprimé aux biellettes et l'effort moteur transmis par celles-ci à l'armature mobile 23.At the end of movement (see FIG. 5), the tangential component F2a which urges the link 32a is reduced due to the inclination of the arm 34, while the tangential component F2b which urges the link 32b is maximum. We thus manage to make the sum F1 + F2 of the forces transmitted by the slider to the links substantially constant, therefore the torque imparted to the links and the engine force transmitted by the latter to the movable frame 23.

Une troisième position peut être prévue pour le bouton de commande 13. Dans cette position dite d'arrêt ("0"), un doigt ou un écran isolant coupe l'alimentation de la bobine 21 en agissant par exemple sur un contact à lame élastique.A third position can be provided for the control button 13. In this so-called stop position ("0"), a finger or an insulating screen cuts the supply of the coil 21 by acting for example on an elastic blade contact. .

Dans le cas où est prévue cette position d'arrêt, les échan­crures 31 possèdent des ailes horizontales logeant les extrémités 35 des biellettes au cours du déplacement du sous-ensemble bouton-coulisseau de la position de marche automatique vers la position d'arrêt et vice-versa.In the case where this stop position is provided, the notches 31 have horizontal wings housing the ends 35 of the rods during the movement of the slide-button sub-assembly from the automatic on position to the stop and vice position. -versed.

Dans la variante illustrée par la figure 12, le bouton de commande 13 est distinct du coulisseau 30. Il agit au moyen d'une rampe 50 sur une face inclinée 51 du coulisseau. La rampe 50 se termine par un cran 52 dans lequel se loge, en fin de course de marche forcée, une pointe 53 du coulis­seau ; d'autres éléments d'accrochage équivalents peuvent, bien sûr, être substitués aux éléments 52, 53.In the variant illustrated in FIG. 12, the control button 13 is distinct from the slide 30. It acts by means of a ramp 50 on an inclined face 51 of the slide. The ramp 50 ends with a notch 52 in which is housed, at the end of the forced travel stroke, a point 53 of the slide; other equivalent fastening elements can, of course, be substituted for elements 52, 53.

Le coulisseau a encore une forme de T dont l'aile présente deux échancrures 31 sensiblement parallèles à la face 11, dans lesquelles se logent les extrémités 35 des deux biel­lettes 32. Les biellettes sont similaires, mais peuvent bien entendu prendre des formes différentes du type illustré par le mode de réalisation précédent. Un faible ressort de trac­tion 54 relie les extrémités 35 des biellettes et sert au rappel du coulisseau et des biellettes à leur position de repos ; un ressort sert au rappel du bouton 13 vers sa position de marche automatique.The slide also has a T shape, the wing of which has two notches 31 substantially parallel to the face 11, in which the ends 35 of the two links 32 are housed. The links are similar, but can of course take different forms of the type illustrated by the previous embodiment. A weak tension spring 54 connects the ends 35 of the rods and serves to return the slide and the rods to their rest position; a spring serves to return the button 13 to its automatic operating position.

Les figures 13 à 15 illustrent le fonctionnement de cette variante de réalisation. En position de marche automatique notée "AUTO" sur la figure 12, le bouton de commande manuel­le 13 permet au coulisseau 30 de s'approcher de la face 11 sous l'effet du ressort 54 ; les biellettes 32 sont effacées sous l'effet du même ressort (figure 13). En marche forcée (figure 14), le coulisseau, qui a été contraint de s'éloi­gner de la face 11 par la rampe 50 du bouton 13, reste main­tenu en position par le cran 52, tandis que les biellettes 32 sont dressées et soulèvent l'armature 23. Les extrémités 35 des biellettes sont alors logées près des extrémités inclinées 55 des échancrures 31.Figures 13 to 15 illustrate the operation of this alternative embodiment. In the automatic operating position denoted "AUTO" in FIG. 12, the manual control button 13 allows the slide 30 to approach the face 11 under the effect of the spring 54; the links 32 are erased under the effect of the same spring (Figure 13). In forced operation (Figure 14), the slide, which has been forced to move away from the face 11 by the ramp 50 of the button 13, remains held in position by the notch 52, while the rods 32 are raised and raise the armature 23. The ends 35 of the links are then housed near the inclined ends 55 of the notches 31.

Le rôle de cette inclinaison est expliqué en regard de la figure 15. Quand une commande de fermeture automatique relaie une fermeture forcée, l'armature 23 s'applique sur l'armature fixe 22 en se déplaçant légèrement de "e", si bien que les biellettes 32 débarrassées de l'effort du ressort 24 et appariées par le ressort 54 sont rappelées à leur position de repos. Les extrémités 55 des échancrures sont inclinées dans un sens tel que le début du pivotement des biellettes autour des axes fixes 41 engendre une légère surcourse du coulisseau 30 à l'opposé de la face 11 et donc l'échappement du coulisseau vis-à-vis du cran 52 ; il en résulte le retour du bouton 13 et du coulisseau 30 à leurs positions de repos sous l'effet de leurs ressorts respec­tifs.The role of this inclination is explained with reference to FIG. 15. When an automatic closing command takes over from a forced closing, the armature 23 is applied to the fixed armature 22 while moving slightly from "e", so that the links 32 freed from the force of the spring 24 and matched by the spring 54 are returned to their rest position. The ends 55 of the notches are inclined in a direction such that the beginning of the pivoting of the rods around the fixed axes 41 generates a slight overtravel of the slider 30 opposite the face 11 and therefore the exhaust of the slider vis-à-vis notch 52; this results in the return of the button 13 and of the slide 30 to their rest positions under the effect of their respective springs.

Claims (10)

1. Appareil interrupteur à commande électromagnétique ou forcée, comprenant dans un boîtier (10) :
- un électro-aimant frontal (20) présentant, d'une part, une armature fixe (22) située près d'une face avant (11) du boîtier, d'autre part, une armature mobile (23) située à distance de la face avant, et déplaçable perpendiculaire­ment à cette face,
- au moins un pôle muni d'un pont de contact mobile (26) coopérant avec des contacts fixes (29),
- une pièce assujettie à l'électro-aimant pour déplacer le(s) pont(s) de contact afin de commander l'ouverture et la fermeture automatiques des contacts,
- un bouton (13) de commande manuelle des contacts, ce bouton étant accessible sur la face avant du boîtier et relié à la pièce de déplacement,
caractérisé par le fait que le bouton de commande manuelle (13) agit sur la pièce de déplacement du pont ou des ponts de contact (26) via :
- un coulisseau (30) disposé sur un côté de l'électro-­aimant, déplaçable entre une position de repos et une position de fermeture forcée et sollicitable par un ressort de rappel (44, 54),
- au moins une biellette d'inversion (32) qui est montée pivotante sur un axe ou palier fixe (41) du boîtier et qui présente un premier bras (33) coopérant avec le coulisseau (30) et un deuxième bras (34) applicable sur la pièce de déplacement pour déterminer la fermeture ou l'ouverture manuelle des contacts.1. Switching device with electromagnetic or forced control, comprising in a housing (10):
- a front electromagnet (20) having, on the one hand, a fixed frame (22) located near a front face (11) of the housing, on the other hand, a movable frame (23) located at a distance from the front face, and movable perpendicular to this face,
- at least one pole provided with a movable contact bridge (26) cooperating with fixed contacts (29),
- a part attached to the electromagnet to move the contact bridge (s) in order to control the automatic opening and closing of the contacts,
- a button (13) for manual contact control, this button being accessible on the front face of the housing and connected to the displacement part,
characterized in that the manual control button (13) acts on the movement part of the bridge or contact bridges (26) via:
- a slide (30) disposed on one side of the electromagnet, movable between a rest position and a forced closing position and can be urged by a return spring (44, 54),
- at least one reversing link (32) which is pivotally mounted on a fixed axis or bearing (41) of the housing and which has a first arm (33) cooperating with the slide (30) and a second arm (34) applicable on the moving part to determine the manual closing or opening of the contacts. 2. Appareil selon la revendication 1, caractérisé en ce qu'il comprend deux biellettes d'inversion pivotantes (32a, 32b), le premier bras (33) de chaque biellette coopérant avec une échancrure (31a, 31b) du coulisseau (30), la forme des échancrures étant déterminée pour permettre un mouvement équilibré du coulisseau.2. Apparatus according to claim 1, characterized in that it comprises two pivoting inverting links (32a, 32b), the first arm (33) of each link cooperating with a notch (31a, 31b) of the slide (30), the shape of the notches being determined to allow a balanced movement of the slide. 3. Appareil selon la revendication 2, caractérisé en ce que les biellettes d'inversion (32a, 32b) sont agencées pour assurer une constante approximative de l'effort manuel total à exercer sur le bouton de commande (13) au cours de la commande forcée des contacts.3. Apparatus according to claim 2, characterized in that the reversing links (32a, 32b) are arranged to ensure an approximate constant of the total manual effort to be exerted on the control button (13) during the order forced contacts. 4. Appareil selon la revendication 3, caractérisé en ce que les premiers bras (33) des deux biel­lettes (32a, 32b) ont une inclinaison différente, tandis que les deuxièmes bras (34) des deux biellettes ont la même inclinaison.4. Apparatus according to claim 3, characterized in that the first arms (33) of the two links (32a, 32b) have a different inclination, while the second arms (34) of the two links have the same inclination. 5. Appareil selon la revendication 3 ou 4, caractérisé en ce que chaque biellette d'inversion (32) est constituée par un fil métallique rond plié en forme de mani­velle.5. Apparatus according to claim 3 or 4, characterized in that each reversing link (32) is constituted by a round metal wire bent in the form of a crank. 6. Appareil selon l'une des revendications 1 à 5, caractérisé en ce que le bouton de commande manuelle (13) et le coulisseau (30) forment une pièce coulissante unique, déplaçable parallèlement à la face avant (11) du boîtier et sollicitée par un ressort de rappel (44) unique.6. Apparatus according to one of claims 1 to 5, characterized in that the manual control button (13) and the slide (30) form a single sliding part, movable parallel to the front face (11) of the housing and biased by a single return spring (44). 7. Appareil selon l'une des revendications 1 à 5, caractérisé en ce que le bouton de commande manuelle (13) et le coulisseau (30) sont des pièces distinctes, respective­ment déplaçables parallèlement et perpendiculairement à la face avant (11) du boîtier et coopérant entre elles au moyen d'une rampe et d'un cran permettant le déplacement et, respectivement, le maintien du coulisseau dans sa position forcée.7. Apparatus according to one of claims 1 to 5, characterized in that the manual control button (13) and the slide (30) are separate parts, respectively movable parallel and perpendicular to the front face (11) of the housing and cooperating with each other by means of a ramp and a notch allowing the displacement and, respectively, the maintenance of the slide in its forced position. 8. Appareil selon la revendication 7, caractérisé en ce que les échancrures (31) du coulisseau (30) ont leurs extrémités opposées inclinées (55) et les biellettes d'inversion (32) sont sollicitées par un ressort de traction commun (54), afin de déterminer pour le coulis­seau une surcourse d'échappement vis-à-vis du cran (52) lors d'une commande de marche automatique succédant à une comman­de de marche forcée.8. Apparatus according to claim 7, characterized in that the notches (31) of the slide (30) have their opposite inclined ends (55) and the inversion rods (32) are biased by a common tension spring (54), in order to determine for the slide an exhaust overtravel vis-à-vis the notch (52) during an automatic operation control succeeding a forced run command. 9. Appareil selon l'une des revendications 1 à 8, caractérisé en ce que la pièce de déplacement est l'armature mobile (23) de l'électro-aimant.9. Apparatus according to one of claims 1 to 8, characterized in that the displacement part is the movable armature (23) of the electromagnet. 10. Appareil selon l'une des revendications 1 à 8, caractérisé en ce que la pièce de déplacement est une pièce porte-contacts (25).10. Apparatus according to one of claims 1 to 8, characterized in that the displacement part is a contact-carrying part (25).
EP90400147A 1989-02-24 1990-01-19 Electromagnetically or forcedly controlled switching apparatus Expired - Lifetime EP0384790B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902858 1989-02-24
FR8902858A FR2643744B1 (en) 1989-02-24 1989-02-24 SWITCHING APPARATUS WITH ELECTROMAGNETIC OR FORCED CONTROL

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EP0384790A1 true EP0384790A1 (en) 1990-08-29
EP0384790B1 EP0384790B1 (en) 1995-03-01

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EP90400147A Expired - Lifetime EP0384790B1 (en) 1989-02-24 1990-01-19 Electromagnetically or forcedly controlled switching apparatus

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EP (1) EP0384790B1 (en)
AT (1) ATE119314T1 (en)
DE (1) DE69017241T2 (en)
ES (1) ES2070286T3 (en)
FR (1) FR2643744B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682353A1 (en) * 1994-05-11 1995-11-15 Schneider Electric Sa Forcedly controlled electromechanical switching apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107516620B (en) * 2017-09-02 2019-02-19 南京采薇且歌信息科技有限公司 A kind of industry Internet of Things is switched with long-haul telemetry

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097832A (en) * 1977-03-09 1978-06-27 Gulf & Western Industries, Inc. Relay with manually releasable latch
FR2383480A1 (en) * 1977-03-08 1978-10-06 Cem Comp Electro Mec Control mechanism for preferential electric tariff selection - uses cam to regulate movement of magnetic circuit at given times

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383480A1 (en) * 1977-03-08 1978-10-06 Cem Comp Electro Mec Control mechanism for preferential electric tariff selection - uses cam to regulate movement of magnetic circuit at given times
US4097832A (en) * 1977-03-09 1978-06-27 Gulf & Western Industries, Inc. Relay with manually releasable latch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682353A1 (en) * 1994-05-11 1995-11-15 Schneider Electric Sa Forcedly controlled electromechanical switching apparatus
FR2719942A1 (en) * 1994-05-11 1995-11-17 Schneider Electric Sa Electromechanical switch device with forced operation.

Also Published As

Publication number Publication date
DE69017241D1 (en) 1995-04-06
ATE119314T1 (en) 1995-03-15
ES2070286T3 (en) 1995-06-01
EP0384790B1 (en) 1995-03-01
DE69017241T2 (en) 1995-07-06
FR2643744A1 (en) 1990-08-31
FR2643744B1 (en) 1991-05-10

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