EP2434518B1 - Improvement of a contactor button. - Google Patents

Improvement of a contactor button. Download PDF

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Publication number
EP2434518B1
EP2434518B1 EP20100306044 EP10306044A EP2434518B1 EP 2434518 B1 EP2434518 B1 EP 2434518B1 EP 20100306044 EP20100306044 EP 20100306044 EP 10306044 A EP10306044 A EP 10306044A EP 2434518 B1 EP2434518 B1 EP 2434518B1
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EP
European Patent Office
Prior art keywords
button
blade
electromagnetic
day
control system
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.)
Active
Application number
EP20100306044
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German (de)
French (fr)
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EP2434518A1 (en
Inventor
Jonathan Guibaud
Nikola Puh
Francis Diebold
Jérôme Dormoy
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.)
Hager Electro SAS
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Hager Electro SAS
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Priority to EP20100306044 priority Critical patent/EP2434518B1/en
Publication of EP2434518A1 publication Critical patent/EP2434518A1/en
Application granted granted Critical
Publication of EP2434518B1 publication Critical patent/EP2434518B1/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 contact carrier moves under the effect of the actuation of the movable armature of the magnetic circuit, when the electromagnet is energized through the auxiliary circuit.
  • a return spring is finally provided to ensure the return of the contact holder when the electromagnet is no longer energized.
  • the invention relates both to normally open type contactors and normally closed type contactors.
  • normally open type contactor will be developed primarily.
  • said provider sends a signal to the meter, which then closes the auxiliary terminals so as to supply the magnetic circuit which in turn causes the closing of the contacts of the power circuit, making it possible, for example, to control the heating -water.
  • the control contact of the meter is open, the auxiliary control circuit of the Day / Night contactor is not energized and the power contacts are open.
  • the contact carrier When the contactor is in the forced on position, the contact carrier is maintained in a stable position by means of a mechanical system of mobile cam type or by retractable hooks.
  • the contactors are mounted in an electrical panel which is known to be subjected to vibration and shock generated by the operation of the various products in the table, such as transformers or circuit breakers. These vibrations can break the balance of the mechanical bond now the switch in forced on position, leading him to return unexpectedly to the automatic position. This abnormal return must obviously be avoided, as much because it characterizes a product malfunction as for security reasons.
  • the resilient biasing means are arranged to return the button from its forced position to its automatic position when mechanical means for retaining the button in the forced operating position are out of action by the displacement of the resulting moving armature. when the electromagnet is energized following the signal emitted by the energy supplier.
  • the present invention proposes to remedy these various disadvantages.
  • the solution recommended in the context of the invention defined by claim 1 is characterized in essence by the fact that the button comprises antivibration means cooperating with the contact carrier in the forced operating position.
  • These antivibration means consist of at least one antivibration flexible blade by movable contact carriers.
  • This antivibration blade is oriented inclined with respect to the direction of movement of the button, and positioned to exert in the mechanical grip phase a stress on a face of the contact holder whose component oriented perpendicular to the direction of movement of the button presses said door -contacts against the button.
  • the contact holder is thus locked in translation in the direction of movement of the button by the mechanical catch, and locked in translation in the direction perpendicular to the movement of the button by the antivibration blade.
  • This reinforcement of the mechanical grip keeps the contact carrier and the button in a stable position during forced operation.
  • the antivibration blade is preferably in one piece with the button.
  • the invention is characterized in that said return means between the forced operation position and the automatic position belong to the button.
  • the return means consist of a flexible blade protruding from the button, and a free end of which is provided to come into contact with an abutment secured to a fixed part of the apparatus during the mechanical attachment phase of the button with the movable contact holders.
  • One of the principles of the invention is therefore to replace the return spring with a blade forming part of the button and capable of providing the return function.
  • the difficulty of this solution lies first of all in the integration of a blade capable of developing sufficient force to provide the return function, and then in the design of a blade having sufficient strength in a non-metallic material but plastic, just like the button.
  • the shape and length of the flexible return blade are defined so that the blade can undergo significant deformation in a small footprint without crossing the elastic limits of the material.
  • the flexible return blade has a geometry with at least two sections allowing a double deformation.
  • the flexible blade comprises a first section parallel to the direction of movement of the button, connected to the latter by a link section, and a second section of pace perpendicular to said direction, having the free end of the flexible return blade.
  • the deformations operate in different directions, and are located at different locations on the blade, which cleverly increases the total deformation in a minimum space by judiciously distributing the stress concentrations on the return blade.
  • the button is provided with at least one stop cooperating with a section of the flexible return blade.
  • the distance chosen between the blade and the abutment has been calculated so that the blade, when deformed and in abutment, does not enter the plastic field.
  • the flexible return blade is configured in Y, each leg of the fork cooperating with a stop secured to a fixed part of the device in the mechanical attachment phase of the button with the movable contact carrier, the trunk being attached to the button.
  • the different sections of the flexible return blade have a substantially constant section.
  • the flexible return blade is also in one piece with the button.
  • the button equipped with the flexible return blade and the antivibration blade is made of a single molded plastic part.
  • the mold is simply modified to correspond to the button of the invention.
  • the piece thus molded does not represent an additional cost.
  • the fact of eliminating several components such as a spring or a cam system represents on the contrary a certain economic gain.
  • the button separately from the two blades, the latter can then be embedded in the slots provided for this purpose in the button.
  • the figure 1 represents the button (1) of the contactor according to the invention, for a module configuration.
  • the actuating lever (13) protrudes from said upper face (15) of the base (14) of the button (1), while the other aforementioned elements (3, 17, 11, 9, 10, 12) protrude from the lower face (16) of the base (14) of the button (1) at the side edges.
  • the antivibration blade (11) is located under a lateral edge of the base (14) of the button (1), and is protected by an element (12) to prevent deterioration during storage of the button (1).
  • the return blade (3) is aligned under the opposite lateral edge of the button (1), and the stop (10) is located to cross the path of the return blade (3) under the same side edge .
  • the element (9) is also located on this side and its role is to protect the return blade (3) during storage of the button (1), before mounting the contactor.
  • Each side edge accommodates one of the two fins (17) symmetrically positioned under the button (1) relative to the longitudinal median axis of the base (14) of said button (1).
  • the figure 2 represents the button (1) set up within the switch, in the automatic on position.
  • the button (1) is movable in translation in the direction (D) as shown in the figure.
  • This figure shows the side of the button (1) where the antivibration blade (11) is located. The latter is at rest, the button (1) being in the automatic position.
  • this antivibration flexible blade (11) is connected to the lower face (16) of the base (14) of the button (1) via a tab (20) with a shape perpendicular to the direction moving the button (1).
  • the antivibration blade (11) is oriented inclined with respect to the direction of movement of the button (1) and faces the movable contact holder (2).
  • the figure 3 represents the button (1) in the forced on position.
  • the contact In this mode of operation, the contact must be established between the fixed contacts and the moving contacts, without the activation of the magnetic circuit.
  • the displacement (D) of the button (1) during the transition from the automatic position to the forced operation position causes the displacement of the contact carrier (2) in a direction perpendicular to that of the button (1) until at a stable position where the mobile and fixed contacts are closed. More specifically, during the transition, an inclined wall (23) of each fin (17) of the knob (1) comes into contact with an inclined wall (24) of the upper part of the contact holder (2).
  • the upper face of the contact carrier (2) has a flat portion (21) and a slight recess (22) perpendicular to said flat portion (21).
  • the mechanical attachment is performed when the tip (18) of each fin (17) of the button (1) is positioned beyond said recess (22). This attachment thus limits any displacement of the contact carrier (2) in the direction of movement (D) of the button (1).
  • the contact between the fin (17) and the contact holder (2) also makes it possible to prevent any movement of the latter (2) in a direction perpendicular to the displacement (D) of the button (1), in the direction directed towards the button (1).
  • the idea of the invention is also to limit or even eliminate the displacement of the contact carrier (2) in the same direction perpendicular to the displacement (D) of the button (1), but this time in the direction away from the contact carrier ( 2) of the button (1), by means of the antivibration blade (11).
  • the latter is positioned to exert a constraint on a face of the contact carrier during the mechanical gripping phase (2).
  • the free end of said antivibration blade (11) is positioned under a nose (25) of the contact holder (2) and exerts a force able to press the upper face of the contact holder (2) against the fins (17). ) of the button (1).
  • This antivibration blade (11) thus adds a component oriented perpendicularly to the direction of movement (D) of the button (1), allowing the maintenance of the system in forced on position.
  • the antivibration blade (11) is also designed to flex and allow the displacement of the contact holder (2) during the refilling of the coil of the contactor, allowing the return of the button (1) in the automatic position.
  • the figure 4 represents the opposite side of the button (1) where the flexible return blade (3) is located.
  • the button (1) is integrated in the contactor, the latter being in automatic operation.
  • the flexible return blade (3) has an inverted L shape composed of a first section, or a short branch (7) parallel to the direction (D) of movement of the button (1), and a second section, or a long branch (6) of shape perpendicular to said direction (D), having the free end (4) of the flexible return blade (3).
  • the short branch (7) is connected to the button (1) by a connecting section (8).
  • the free end (4) of the return blade (3) cooperates with an abutment (5) integral with a fixed part of the switch during the transition from the automatic position to the forced on position.
  • the figure 5 represents the button (1) positioned in the switch, in the forced on position. In this latter position, the flexible return blade (3) is deformed.
  • the short branch (7) of the return blade (3) deflects towards the lower face (16) of the base (14). of the button (1) until the seat (19) of the angle of the L comes into contact with the stop (10) whose height is relatively small, and the long branch (6) of the return blade (3) undergoes a deflection increasing the angle between the two branches (6, 7).
  • the figure 5 shows the deformation of these two branches (6, 7) when the button (1) is in the forced on position. In this position, the deformation is limited, and neither of the two branches (7, 6) enters the plastic domain.
  • a return blade (3) as represented in FIG. figures 1 , 2 and 3 , decentered with respect to the transverse axis of the button (1), plays its role of reminding the forced position to the automatic position despite its tendency to rotate the knob (1).
  • the return blade will therefore take another geometric shape capable of centering the forces relative to the transverse axis (X) of the button (1), as shown in FIG. figures 6 and 7 .
  • the return blade (26) is Y-shaped, each leg (28, 29) of the fork cooperating with an abutment (30, 31) integral with a fixed part of the apparatus, the trunk ( 27) being attached to the underside (16) of the button (1).
  • the return blade (26) is positioned so that the transverse axis (X) of the button (1) corresponds to the axis of symmetry of the blade (26). Its trunk (27) is then attached to the button (1) no longer on a lateral side but in the center of a side perpendicular to the direction of movement (D) of the button (1).
  • the button (1) is in the automatic position and the return blade (26) is at rest.
  • the button is in the forced on position, and the return blade (26) is solicited. Its two branches (28, 29), in contact with the two stops (31, 30), are deformed so as to reduce the angle of the fork.
  • the blades (11, 3, 26), the stop (10) and the elements (12, 20, 9) form a single molded piece with the button (1).

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

La présente invention concerne un perfectionnement aux appareils électromagnétiques de type contacteur Jour/Nuit, ce type d'appareil comprenant, à l'intérieur d'un boîtier :

  • un circuit magnétique à électro-aimant fixe et armature mobile ;
  • au moins un circuit auxiliaire de commande destiné à alimenter ce circuit magnétique et établi entre des bornes auxiliaires ;
  • au moins un circuit de puissance établi entre deux bornes principales et sur lequel sont intercalés au moins un organe de contact fixe et un organe de contact mobile porté par au moins un porte-contacts et coopérant avec l'organe de contact fixe.
The present invention relates to an improvement to electromagnetic devices of the day / night contactor type, this type of apparatus comprising, inside a housing:
  • a magnetic circuit with a fixed electromagnet and a movable armature;
  • at least one auxiliary control circuit for supplying said magnetic circuit and arranged between auxiliary terminals;
  • at least one power circuit established between two main terminals and on which are interposed at least one fixed contact member and a movable contact member carried by at least one contact holder and cooperating with the fixed contact member.

Le porte-contacts se déplace sous l'effet de l'actionnement de l'armature mobile du circuit magnétique, lorsque l'électro-aimant est mis sous tension par l'intermédiaire du circuit auxiliaire. Un ressort de rappel est enfin prévu pour assurer le retour du porte-contacts lorsque l'électro-aimant n'est plus sous tension.The contact carrier moves under the effect of the actuation of the movable armature of the magnetic circuit, when the electromagnet is energized through the auxiliary circuit. A return spring is finally provided to ensure the return of the contact holder when the electromagnet is no longer energized.

L'invention concerne aussi bien les contacteurs de type normalement ouvert que les contacteurs de type normalement fermé. Pour plus de lisibilité dans la suite de la description, le cas du contacteur de type normalement ouvert sera développé à titre principal.The invention relates both to normally open type contactors and normally closed type contactors. For more legibility in the following description, the case of normally open type contactor will be developed primarily.

Traditionnellement, l'installation d'un tel contacteur Jour/Nuit est utilisée pour la commande d'appareils électriques, du type chauffe-eau électrique, lave-vaisselle, etc. fonctionnant pendant les heures creuses du fournisseur d'énergie, donc à des tarifs préférentiels.Traditionally, the installation of such a contactor Day / Night is used for the control of electrical appliances, type water heater electric, dishwasher, etc. operating during the off-peak hours of the energy supplier, so at preferential rates.

Concrètement, lors des heures creuses, ledit fournisseur envoie un signal au compteur, ce dernier ferme alors les bornes auxiliaires de manière à alimenter le circuit magnétique qui entraîne à son tour la fermeture des contacts du circuit de puissance, permettant de commander par exemple le chauffe-eau.Concretely, during off-peak hours, said provider sends a signal to the meter, which then closes the auxiliary terminals so as to supply the magnetic circuit which in turn causes the closing of the contacts of the power circuit, making it possible, for example, to control the heating -water.

Lors des heures pleines, le contact de commande du compteur est ouvert, le circuit auxiliaire de commande du contacteur Jour/Nuit n'est pas alimenté et les contacts de puissance sont ouverts.During peak hours, the control contact of the meter is open, the auxiliary control circuit of the Day / Night contactor is not energized and the power contacts are open.

Ces contacteurs Jour/Nuit sont en général équipés d'un bouton permettant d'intervenir manuellement sur leur fonctionnement, et qui est l'objet de la présente invention.These Day / Night contactors are generally equipped with a button for manually intervening on their operation, and which is the object of the present invention.

Ce bouton coulisse entre trois positions stables de fonctionnement, qui correspondent à :

  • un fonctionnement en automatique où l'appareil électromagnétique est commandé par le circuit magnétique ;
  • un fonctionnement en arrêt shuntant le circuit magnétique ;
  • un fonctionnement forcé de fermeture ou d'ouverture des contacts par entraînement du porte-contacts mobiles vers ou à distance de contacts fixes et maintien en cette position par des moyens d'accrochage mécanique entre le bouton et chaque porte-contacts, des moyens de rappel du bouton étant prévus entre cette dernière position et la position de fonctionnement automatique.
This button slides between three stable operating positions, which correspond to:
  • automatic operation where the electromagnetic apparatus is controlled by the magnetic circuit;
  • shutdown operation shunting the magnetic circuit;
  • a forced operation of closing or opening the contacts by driving the movable contact carrier towards or away from fixed contacts and holding in this position by means of mechanical coupling between the button and each contact carrier, recall means of the button being provided between this last position and the automatic operating position.

Lorsque le contacteur est en position marche forcée, le porte-contacts est maintenu dans une position stable au moyen d'un système mécanique de type came mobile ou encore par des crochets escamotables. Or, les contacteurs sont montés dans un tableau électrique dont on sait qu'ils sont soumis à des vibrations et chocs engendrés par le fonctionnement des différents produits présents dans le tableau, comme les transformateurs ou les disjoncteurs. Ces vibrations peuvent rompre l'équilibre de la liaison mécanique maintenant le contacteur en position marche forcée, le conduisant à revenir inopinément en position automatique. Ce retour anormal doit évidemment être évité, autant parce qu'il caractérise un dysfonctionnement du produit que pour des raisons de sécurité.When the contactor is in the forced on position, the contact carrier is maintained in a stable position by means of a mechanical system of mobile cam type or by retractable hooks. However, the contactors are mounted in an electrical panel which is known to be subjected to vibration and shock generated by the operation of the various products in the table, such as transformers or circuit breakers. These vibrations can break the balance of the mechanical bond now the switch in forced on position, leading him to return unexpectedly to the automatic position. This abnormal return must obviously be avoided, as much because it characterizes a product malfunction as for security reasons.

Par ailleurs, les moyens élastiques de rappel sont agencés pour ramener le bouton de sa position marche forcée à sa position automatique lorsque des moyens mécaniques de retenue du bouton en position marche forcée sont mis hors d'action par le déplacement de l'armature mobile résultant de la mise sous tension de l'électro-aimant suite au signal émis par le fournisseur d'énergie.Furthermore, the resilient biasing means are arranged to return the button from its forced position to its automatic position when mechanical means for retaining the button in the forced operating position are out of action by the displacement of the resulting moving armature. when the electromagnet is energized following the signal emitted by the energy supplier.

Ce retour en position de fonctionnement automatique est généralement réalisé au moyen d'un ressort. Or, l'utilisation d'un tel ressort implique une pièce supplémentaire dans le contacteur, induisant du temps supplémentaire lors du montage, ainsi que des risques de mauvais positionnement voire d'oubli du composant lors du montage, le fonctionnement correct du contacteur n'étant dès lors plus garanti.This return to the automatic operating position is generally achieved by means of a spring. However, the use of such a spring involves an additional piece in the contactor, inducing additional time during assembly, as well as the risk of misplacement or even forgetting the component during assembly, the correct operation of the contactor n ' being therefore more guaranteed.

Le document EP 0 645 792 A1 décrit un appareil selon le préambule de la revendication 1.The document EP 0 645 792 A1 describes an apparatus according to the preamble of claim 1.

La présente invention se propose de remédier à ces différents inconvénients.The present invention proposes to remedy these various disadvantages.

La solution préconisée dans le cadre de l'invention définie par la revendication 1 se caractérise à titre essentiel en ce que le bouton comporte des moyens antivibratoires coopérant avec le porte-contacts en position de fonctionnement forcé. Ces moyens antivibratoires consistent en au moins une lame flexible antivibratoire par porte-contacts mobiles.The solution recommended in the context of the invention defined by claim 1 is characterized in essence by the fact that the button comprises antivibration means cooperating with the contact carrier in the forced operating position. These antivibration means consist of at least one antivibration flexible blade by movable contact carriers.

Cette lame antivibratoire est orientée inclinée par rapport à la direction du déplacement du bouton, et positionnée pour exercer en phase d'accroche mécanique une contrainte sur une face du porte-contacts dont la composante orientée perpendiculairement à la direction de déplacement du bouton presse ledit porte-contacts contre le bouton. Le porte-contacts est ainsi bloqué en translation dans la direction de déplacement du bouton par l'accroche mécanique, et bloqué en translation dans la direction perpendiculaire au déplacement du bouton par la lame antivibratoire. Ce renforcement de l'accroche mécanique permet de maintenir le porte-contacts et le bouton dans une position stable en fonctionnement marche forcée.This antivibration blade is oriented inclined with respect to the direction of movement of the button, and positioned to exert in the mechanical grip phase a stress on a face of the contact holder whose component oriented perpendicular to the direction of movement of the button presses said door -contacts against the button. The contact holder is thus locked in translation in the direction of movement of the button by the mechanical catch, and locked in translation in the direction perpendicular to the movement of the button by the antivibration blade. This reinforcement of the mechanical grip keeps the contact carrier and the button in a stable position during forced operation.

La lame antivibratoire est de préférence d'une seule pièce avec le bouton.The antivibration blade is preferably in one piece with the button.

A titre secondaire, l'invention se caractérise en ce que lesdits moyens de rappel entre la position marche forcée et la position automatique appartiennent au bouton.As a secondary aspect, the invention is characterized in that said return means between the forced operation position and the automatic position belong to the button.

Plus précisément, les moyens de rappel consistent en une lame flexible dépassant du bouton, et dont une extrémité libre est prévue pour entrer en contact avec une butée solidaire d'une partie fixe de l'appareil en phase d'accrochage mécanique du bouton avec le porte-contacts mobiles.More specifically, the return means consist of a flexible blade protruding from the button, and a free end of which is provided to come into contact with an abutment secured to a fixed part of the apparatus during the mechanical attachment phase of the button with the movable contact holders.

L'un des principes de l'invention est donc de remplacer le ressort de rappel par une lame faisant partie du bouton et capable d'assurer la fonction de rappel. La difficulté de cette solution réside tout d'abord dans l'intégration d'une lame capable de développer un effort suffisant pour assurer la fonction de rappel, et ensuite dans la conception d'une lame présentant suffisamment de robustesse dans un matériau non pas métallique mais plastique, tout comme le bouton.One of the principles of the invention is therefore to replace the return spring with a blade forming part of the button and capable of providing the return function. The difficulty of this solution lies first of all in the integration of a blade capable of developing sufficient force to provide the return function, and then in the design of a blade having sufficient strength in a non-metallic material but plastic, just like the button.

Pour cela, la forme et la longueur de la lame flexible de rappel sont définies de manière à ce que la lame puisse subir une déformation importante dans un encombrement réduit sans franchir les limites élastiques du matériau.For this, the shape and length of the flexible return blade are defined so that the blade can undergo significant deformation in a small footprint without crossing the elastic limits of the material.

L'idée est de faire subir une déformation en deux temps à la lame flexible de rappel de manière à optimiser sa déformation dans un minimum d'espace. Pour ce faire, la lame flexible de rappel présente une géométrie à au moins deux tronçons permettant une double déformation.The idea is to deform the flexible return blade in two stages in order to optimize its deformation in a minimum of space. To do this, the flexible return blade has a geometry with at least two sections allowing a double deformation.

Concrètement, pour un contacteur un module, c'est-à-dire ayant une largeur standard de 17,8 mm, la lame flexible comporte un premier tronçon d'allure parallèle à la direction de déplacement du bouton, reliée à ce dernier par un tronçon de liaison, et un second tronçon d'allure perpendiculaire à ladite direction, comportant l'extrémité libre de la lame flexible de rappel.Specifically, for a switch a module, that is to say having a standard width of 17.8 mm, the flexible blade comprises a first section parallel to the direction of movement of the button, connected to the latter by a link section, and a second section of pace perpendicular to said direction, having the free end of the flexible return blade.

Les déformations s'opèrent dans des directions différentes, et sont localisées à des emplacements différents sur la lame, ce qui permet d'augmenter astucieusement la déformation totale dans un minimum d'espace en répartissant judicieusement les concentrations de contraintes sur la lame de rappel.The deformations operate in different directions, and are located at different locations on the blade, which cleverly increases the total deformation in a minimum space by judiciously distributing the stress concentrations on the return blade.

Selon une configuration possible, le bouton est doté d'au moins une butée coopérant avec un tronçon de la lame flexible de rappel. La distance choisie entre la lame et la butée a été calculée pour que la lame, lorsqu'elle est déformée et en butée, n'entre pas dans le domaine plastique.According to one possible configuration, the button is provided with at least one stop cooperating with a section of the flexible return blade. The distance chosen between the blade and the abutment has been calculated so that the blade, when deformed and in abutment, does not enter the plastic field.

Pour un contacteur deux modules, c'est-à-dire ayant une largeur standard de 35,6mm, la lame flexible de rappel est configurée en Y, chaque branche de la fourche coopérant avec une butée solidaire d'une partie fixe de l'appareil en phase d'accrochage mécanique du bouton avec le porte-contacts mobiles, le tronc étant rattaché au bouton.For a contactor two modules, that is to say having a standard width of 35.6 mm, the flexible return blade is configured in Y, each leg of the fork cooperating with a stop secured to a fixed part of the device in the mechanical attachment phase of the button with the movable contact carrier, the trunk being attached to the button.

Dans tous les cas de contacteur (un, deux ou trois modules), les différents tronçons de la lame flexible de rappel ont une section sensiblement constante.In all contactor cases (one, two or three modules), the different sections of the flexible return blade have a substantially constant section.

De préférence, la lame flexible de rappel est également d'une seule pièce avec le bouton.Preferably, the flexible return blade is also in one piece with the button.

De préférence encore, le bouton équipé de la lame flexible de rappel et de la lame antivibratoire est réalisé en une seule pièce moulée en plastique. Par rapport à l'art antérieur, le moule est simplement modifié de manière à correspondre au bouton de l'invention. La pièce ainsi moulée ne représente pas un surcoût. Le fait de s'affranchir de plusieurs composants tels qu'un ressort ou un système de came représente au contraire un gain économique certain.More preferably, the button equipped with the flexible return blade and the antivibration blade is made of a single molded plastic part. Compared to the prior art, the mold is simply modified to correspond to the button of the invention. The piece thus molded does not represent an additional cost. The fact of eliminating several components such as a spring or a cam system represents on the contrary a certain economic gain.

Il est également possible de mouler le bouton séparément des deux lames, ces dernières pouvant être alors encastrées dans des emplacements prévus à cet effet dans le bouton.It is also possible to mold the button separately from the two blades, the latter can then be embedded in the slots provided for this purpose in the button.

L'invention va à présent être décrite plus en détails, en référence aux figures annexées, pour lesquelles :

  • la figure 1 présente une vue générale du bouton selon une configuration possible ;
  • la figure 2 représente une lame antivibratoire au repos lorsque le bouton, selon la configuration de la figure 1, est en position automatique dans le contacteur ;
  • la figure 3 montre la lame antivibratoire plaquant un porte-contacts contre le bouton, selon la configuration de la figure 1, lors d'un fonctionnement forcé ;
  • la figure 4 représente une lame de rappel au repos lorsque le bouton, selon la configuration de la figure 1, est en position automatique dans le contacteur ;
  • la figure 5 illustre la déformation de la lame de rappel lorsque le bouton, selon la configuration de la figure 1, est en position marche forcée dans le contacteur ;
  • la figure 6 illustre une lame de rappel au repos intégrée à un bouton, selon une autre configuration ;
  • la figure 7 représente la lame de rappel déformée lorsque le bouton, selon la configuration de la figure 6, est en position marche forcée.
The invention will now be described in more detail, with reference to the appended figures, for which:
  • the figure 1 presents a general view of the button according to a possible configuration;
  • the figure 2 represents an antivibration blade at rest when the button, according to the configuration of the figure 1 , is in automatic position in the contactor;
  • the figure 3 shows the antivibration blade pressing a contact holder against the button, according to the configuration of the figure 1 , during forced operation;
  • the figure 4 represents a restoring blade at rest when the button, according to the configuration of the figure 1 , is in automatic position in the contactor;
  • the figure 5 illustrates the deformation of the return blade when the button, according to the configuration of the figure 1 , is in the forced operating position in the contactor;
  • the figure 6 illustrates a button rest restoring blade, in another configuration;
  • the figure 7 represents the deformed return blade when the button, according to the configuration of the figure 6 , is in the forced march position.

La figure 1 représente le bouton (1) du contacteur selon l'invention, pour une configuration un module.The figure 1 represents the button (1) of the contactor according to the invention, for a module configuration.

Ce bouton (1) est composé :

  • d'une base (14) d'allure plane, présentant une face supérieure (15) et une face inférieure (16) ;
  • d'une manette d'actionnement (13) ;
  • d'une lame flexible de rappel (3) ;
  • de deux ailettes (17) en V servant à réaliser une accroche mécanique avec un porte-contacts (2) (non représenté sur cette figure 1)
  • d'une lame flexible antivibratoire (11) ;
  • d'une butée (10) coopérant avec la lame de rappel ;
  • d'éléments de protection (9, 12) des lames (3, 11).
This button (1) is composed of:
  • a plane-like base (14) having an upper face (15) and a lower face (16);
  • an operating handle (13);
  • a flexible return blade (3);
  • two fins (17) V for making a mechanical catch with a contact holder (2) (not shown in this figure 1 )
  • a flexible antivibration blade (11);
  • a stop (10) cooperating with the return blade;
  • protection elements (9, 12) of the blades (3, 11).

La manette d'actionnement (13) dépasse de ladite face supérieure (15) de la base (14) du bouton (1), tandis que les autres éléments précités (3, 17, 11, 9, 10, 12) dépassent de la face inférieure (16) de la base (14) du bouton (1), au niveau des bords latéraux.The actuating lever (13) protrudes from said upper face (15) of the base (14) of the button (1), while the other aforementioned elements (3, 17, 11, 9, 10, 12) protrude from the lower face (16) of the base (14) of the button (1) at the side edges.

Plus précisément, la lame antivibratoire (11) est localisée sous un bord latéral de la base (14) du bouton (1), et est protégée par un élément (12) pour éviter sa détérioration lors du stockage du bouton (1).More specifically, the antivibration blade (11) is located under a lateral edge of the base (14) of the button (1), and is protected by an element (12) to prevent deterioration during storage of the button (1).

La lame de rappel (3) quant à elle est alignée sous le bord latéral opposé du bouton (1), et la butée (10) se situe de manière à croiser le trajet de la lame de rappel (3) sous le même bord latéral. L'élément (9) est également localisé de ce côté et son rôle consiste à protéger la lame de rappel (3) lors du stockage du bouton (1), avant le montage du contacteur.The return blade (3) is aligned under the opposite lateral edge of the button (1), and the stop (10) is located to cross the path of the return blade (3) under the same side edge . The element (9) is also located on this side and its role is to protect the return blade (3) during storage of the button (1), before mounting the contactor.

Chaque bord latéral accueille une des deux ailettes (17) positionnées de manière symétrique sous le bouton (1) par rapport à l'axe médian longitudinal de la base (14) dudit bouton (1).Each side edge accommodates one of the two fins (17) symmetrically positioned under the button (1) relative to the longitudinal median axis of the base (14) of said button (1).

La figure 2 représente le bouton (1) mis en place au sein du contacteur, en position marche automatique. Le bouton (1) est mobile en translation selon la direction (D) telle que représentée sur la figure.The figure 2 represents the button (1) set up within the switch, in the automatic on position. The button (1) is movable in translation in the direction (D) as shown in the figure.

Cette figure représente le côté latéral du bouton (1) où se situe la lame antivibratoire (11). Cette dernière est au repos, le bouton (1) étant en position automatique.This figure shows the side of the button (1) where the antivibration blade (11) is located. The latter is at rest, the button (1) being in the automatic position.

Selon l'invention, cette lame flexible antivibratoire (11) est reliée à la face inférieure (16) de la base (14) du bouton (1) par l'intermédiaire d'une patte (20) d'allure perpendiculaire à la direction de déplacement du bouton (1).According to the invention, this antivibration flexible blade (11) is connected to the lower face (16) of the base (14) of the button (1) via a tab (20) with a shape perpendicular to the direction moving the button (1).

La lame antivibratoire (11) est orientée inclinée par rapport à la direction de déplacement du bouton (1) et fait face au porte-contacts (2) mobile.The antivibration blade (11) is oriented inclined with respect to the direction of movement of the button (1) and faces the movable contact holder (2).

La figure 3 représente le bouton (1) en position marche forcée. Dans ce mode de fonctionnement, le contact doit être établi entre les contacts fixes et les contacts mobiles, sans l'activation du circuit magnétique. Pour ce faire, le déplacement (D) du bouton (1) lors de la transition de la position automatique vers la position marche forcée entraîne le déplacement du porte-contacts (2) dans une direction perpendiculaire à celle du bouton (1) jusqu'à une position stable où les contacts mobiles et fixes sont fermés. Plus précisément, lors de la transition, une paroi inclinée (23) de chaque ailette (17) du bouton (1) vient en contact avec une paroi inclinée (24) de la partie supérieure du porte-contacts (2). Ces deux parois (23, 24) sont inclinées dans la même direction et coulissent l'une par rapport à l'autre en un mouvement classique de transformation de direction de déplacement, jusqu'à ce que la pointe (18) de chaque ailette (17) atteigne la face supérieure du porte-contacts (2). Le porte-contacts (2) est alors maintenu dans cette position par des moyens d'accrochage mécanique entre le bouton (1) et le porte-contacts (2).The figure 3 represents the button (1) in the forced on position. In this mode of operation, the contact must be established between the fixed contacts and the moving contacts, without the activation of the magnetic circuit. To do this, the displacement (D) of the button (1) during the transition from the automatic position to the forced operation position causes the displacement of the contact carrier (2) in a direction perpendicular to that of the button (1) until at a stable position where the mobile and fixed contacts are closed. More specifically, during the transition, an inclined wall (23) of each fin (17) of the knob (1) comes into contact with an inclined wall (24) of the upper part of the contact holder (2). These two walls (23, 24) are inclined in the same direction and slide relative to each other in a conventional movement direction transformation movement, until the tip (18) of each fin ( 17) reaches the upper face of the contact holder (2). The contact carrier (2) is then held in this position by means of mechanical coupling between the button (1) and the contact holder (2).

La face supérieure du porte-contacts (2) présente une partie plane (21) et un léger décrochement (22) perpendiculaire à ladite partie plane (21). L'accrochage mécanique est réalisé lorsque la pointe (18) de chaque ailette (17) du bouton (1) vient se positionner au delà dudit décrochement (22). Cette accroche limite ainsi tout déplacement du porte-contacts (2) dans la direction de déplacement (D) du bouton (1). Le contact entre l'ailette (17) et le porte-contacts (2) permet également d'empêcher tout déplacement de ce dernier (2) dans une direction perpendiculaire au déplacement (D) du bouton (1), dans le sens dirigé vers le bouton (1).The upper face of the contact carrier (2) has a flat portion (21) and a slight recess (22) perpendicular to said flat portion (21). The mechanical attachment is performed when the tip (18) of each fin (17) of the button (1) is positioned beyond said recess (22). This attachment thus limits any displacement of the contact carrier (2) in the direction of movement (D) of the button (1). The contact between the fin (17) and the contact holder (2) also makes it possible to prevent any movement of the latter (2) in a direction perpendicular to the displacement (D) of the button (1), in the direction directed towards the button (1).

L'idée de l'invention est également de limiter voire supprimer le déplacement du porte-contacts (2) dans cette même direction perpendiculaire au déplacement (D) du bouton (1), mais cette fois dans le sens éloignant le porte-contacts (2) du bouton (1), au moyen de la lame antivibratoire (11). Cette dernière est positionnée pour exercer en phase d'accroche mécanique une contrainte sur une face du porte-contacts (2). Concrètement, l'extrémité libre de ladite lame antivibratoire (11) est positionnée sous un nez (25) du porte-contacts (2) et exerce une force apte à plaquer la face supérieure du porte-contacts (2) contre les ailettes (17) du bouton (1). Cette lame antivibratoire (11) rajoute ainsi une composante orientée perpendiculairement à la direction de déplacement (D) du bouton (1), permettant le maintien du système en position marche forcée.The idea of the invention is also to limit or even eliminate the displacement of the contact carrier (2) in the same direction perpendicular to the displacement (D) of the button (1), but this time in the direction away from the contact carrier ( 2) of the button (1), by means of the antivibration blade (11). The latter is positioned to exert a constraint on a face of the contact carrier during the mechanical gripping phase (2). Concretely, the free end of said antivibration blade (11) is positioned under a nose (25) of the contact holder (2) and exerts a force able to press the upper face of the contact holder (2) against the fins (17). ) of the button (1). This antivibration blade (11) thus adds a component oriented perpendicularly to the direction of movement (D) of the button (1), allowing the maintenance of the system in forced on position.

La lame antivibratoire (11) est également conçue pour fléchir et autoriser le déplacement du porte-contacts (2) lors de la réalimentation de la bobine du contacteur, permettant le retour du bouton (1) en position automatique.The antivibration blade (11) is also designed to flex and allow the displacement of the contact holder (2) during the refilling of the coil of the contactor, allowing the return of the button (1) in the automatic position.

La figure 4 représente le côté opposé du bouton (1) où se situe la lame flexible de rappel (3). Le bouton (1) est intégré dans le contacteur, ce dernier étant en fonctionnement automatique.The figure 4 represents the opposite side of the button (1) where the flexible return blade (3) is located. The button (1) is integrated in the contactor, the latter being in automatic operation.

Dans cette position marche automatique du bouton (1), la lame flexible de rappel (3) n'est pas sollicitée.In this automatic position of the button (1), the flexible return blade (3) is not requested.

Concrètement, la lame flexible de rappel (3) a une forme de L renversé composé d'un premier tronçon, soit d'une branche courte (7) d'allure parallèle à la direction (D) de déplacement du bouton (1), et d'un second tronçon, soit d'une branche longue (6) d'allure perpendiculaire à ladite direction (D), comportant l'extrémité libre (4) de la lame flexible de rappel (3). La branche courte (7) est reliée au bouton (1) par un tronçon de liaison (8).Concretely, the flexible return blade (3) has an inverted L shape composed of a first section, or a short branch (7) parallel to the direction (D) of movement of the button (1), and a second section, or a long branch (6) of shape perpendicular to said direction (D), having the free end (4) of the flexible return blade (3). The short branch (7) is connected to the button (1) by a connecting section (8).

L'extrémité libre (4) de la lame de rappel (3) coopère avec une butée (5) solidaire d'une partie fixe du contacteur lors du passage de la position automatique à la position marche forcée.The free end (4) of the return blade (3) cooperates with an abutment (5) integral with a fixed part of the switch during the transition from the automatic position to the forced on position.

La figure 5 représente le bouton (1) positionné au sein du contacteur, en position marche forcée. Dans cette dernière position, la lame flexible de rappel (3) est déformée.The figure 5 represents the button (1) positioned in the switch, in the forced on position. In this latter position, the flexible return blade (3) is deformed.

Selon l'invention, lors du passage de la position automatique à la position marche forcée, la branche courte (7) de la lame de rappel (3) subit une déflexion en direction de la face inférieure (16) de la base (14) du bouton (1) jusqu'à ce que l'assise (19) de l'angle du L vienne en contact avec la butée (10) dont la hauteur est relativement minime, et la branche longue (6) de la lame de rappel (3) subit une déflexion augmentant l'angle entre les deux branches (6, 7). La figure 5 montre la déformation de ces deux branches (6, 7) lorsque le bouton (1) est en position marche forcée. Dans cette position, la déformation est limitée, et aucune des deux branches (7, 6) n'entre dans le domaine plastique.According to the invention, during the transition from the automatic position to the forced on position, the short branch (7) of the return blade (3) deflects towards the lower face (16) of the base (14). of the button (1) until the seat (19) of the angle of the L comes into contact with the stop (10) whose height is relatively small, and the long branch (6) of the return blade (3) undergoes a deflection increasing the angle between the two branches (6, 7). The figure 5 shows the deformation of these two branches (6, 7) when the button (1) is in the forced on position. In this position, the deformation is limited, and neither of the two branches (7, 6) enters the plastic domain.

Dans le cas d'un contacteur un module, une lame de rappel (3) telle que représentée en figures 1, 2 et 3, décentrée par rapport à l'axe transversal du bouton (1), joue son rôle de rappel de la position marche forcée à la position automatique malgré sa tendance à faire pivoter le bouton (1).In the case of a contactor a module, a return blade (3) as represented in FIG. figures 1 , 2 and 3 , decentered with respect to the transverse axis of the button (1), plays its role of reminding the forced position to the automatic position despite its tendency to rotate the knob (1).

Dans le cas d'un contacteur deux modules, donc plus large, il est nécessaire de centrer les efforts. La lame de rappel prendra donc une autre forme géométrique capable de centrer les efforts par rapport à l'axe transversal (X) du bouton (1), comme cela est montré en figures 6 et 7.In the case of a two-module contactor, so wider, it is necessary to focus efforts. The return blade will therefore take another geometric shape capable of centering the forces relative to the transverse axis (X) of the button (1), as shown in FIG. figures 6 and 7 .

A cet effet, la lame de rappel (26) a une forme de Y, chaque branche (28, 29) de la fourche coopérant avec une butée (30, 31) solidaire d'une partie fixe de l'appareil, le tronc (27) étant rattaché à la face inférieure (16) du bouton (1).For this purpose, the return blade (26) is Y-shaped, each leg (28, 29) of the fork cooperating with an abutment (30, 31) integral with a fixed part of the apparatus, the trunk ( 27) being attached to the underside (16) of the button (1).

Afin de centrer les efforts, la lame de rappel (26) est positionnée de manière à ce que l'axe transversal (X) du bouton (1) corresponde à l'axe de symétrie de la lame (26). Son tronc (27) est alors rattaché au bouton (1) non plus sur un côté latéral mais au centre d'un côté perpendiculaire à la direction de déplacement (D) du bouton (1).In order to center the forces, the return blade (26) is positioned so that the transverse axis (X) of the button (1) corresponds to the axis of symmetry of the blade (26). Its trunk (27) is then attached to the button (1) no longer on a lateral side but in the center of a side perpendicular to the direction of movement (D) of the button (1).

Sur la figure 6, le bouton (1) est en position automatique et la lame de rappel (26) est au repos.On the figure 6 , the button (1) is in the automatic position and the return blade (26) is at rest.

Sur la figure 7, le bouton est en position marche forcée, et la lame de rappel (26) est sollicitée. Ses deux branches (28, 29), en contact avec les deux butées (31, 30), sont déformées de manière à diminuer l'angle de la fourche.On the figure 7 , the button is in the forced on position, and the return blade (26) is solicited. Its two branches (28, 29), in contact with the two stops (31, 30), are deformed so as to reduce the angle of the fork.

Sur toutes ces figures, les lames (11, 3, 26), la butée (10) et les éléments (12, 20, 9) ne forment qu'une seule pièce moulée avec le bouton (1).In all these figures, the blades (11, 3, 26), the stop (10) and the elements (12, 20, 9) form a single molded piece with the button (1).

L'invention précédente a été décrite au moyen d'un exemple préférentiel, qui ne peut toutefois être considéré comme limitatif. Les variantes et les modifications de forme qui entrent dans le contenu englobé par les revendications annexées font partie de l'invention.The foregoing invention has been described by means of a preferred example, which however can not be considered as limiting. Variations and modifications of form which fall within the content encompassed by the appended claims form part of the invention.

Claims (11)

  1. Electromagnetic Day/Night switching device with a manual control system having a button (1) working in conjunction with at least one mobile contact support (2) driven by the activation of a magnetic circuit or by resetting means of the contact support(s) (2), the said button (1) being able to slide between three fixed positions corresponding respectively to:
    - an automatic mode where the electromagnetic device is controlled by the magnetic circuit;
    - a stop mode bypassing the magnetic circuit;
    - a forced mode closing or opening the contacts when the mobile contact supports (2) are driven towards or away from the fixed contacts and maintained in this position by means of a mechanical hook between the button (1) and each of the contact supports (2), means of resetting the button (1) being foreseen between this last position and the automatic mode position,
    characterized in that the button (1) contains an anti-vibration means (11) working in conjunction with the contact supports (2) in the forced mode position, the said anti-vibration means consisting of at least one flexible anti-vibration blade (11) for each mobile contact support (2), tilted in relation to the direction (D) of movement of the button (1) and positioned to exert a force on the face of the contact support (2) in the mechanical hooking phase of which the component orientated perpendicular to the direction of the movement of the button (1) presses the said contact support (2) against the button (1).
  2. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the anti-vibration blade (11) is part of the button (1).
  3. Electromagnetic Day/Night switching device with a manual control system according to claim 1, characterized in that the said means of resetting between the forced position and the automatic position are part of the button (1).
  4. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the means of resetting consists of a flexible blade (3) extending from the button (1), and of which a free end (4) is foreseen to come into contact with a stop (5) integrated in a fixed part of the device in the mechanical hooking phase of the button (1) with the mobile contact support (2).
  5. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the flexible reset blade (3) has at least two sections (7, 6) allowing a double deformation.
  6. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the flexible blade (3) includes a first section (7) running parallel to the direction (D) of movement of the button (1), linked to the latter by a connecting section (8), and a second section running perpendicular (6) to the said direction (D), carrying the free end (4) of the flexible reset blade (3).
  7. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the button (1) has at least one stop (10) working in conjunction with one section of the flexible reset blade (3).
  8. Electromagnetic Day/Night switching device with a manual control system according to one of claims 4 and 5, characterized in that the flexible reset blade (3) is configured in a Y, each branch (28, 29) of the fork working in conjunction with a stop (30, 31) attached to a fixed part of the device in the mechanical hooking phase of the button (1) with the mobile contact support (2), the body (27) being attached to the button (1).
  9. Electromagnetic Day/Night switching device with a manual control system according to one of claims 5 to 8, characterized in that the different sections of the flexible reset blade (3) have a cross-section more or less constant.
  10. Electromagnetic Day/Night switching device with a manual control system according to one of claims 4 to 9, characterized in that the flexible reset blade (3) is part of the button (1).
  11. Electromagnetic Day/Night switching device with a manual control system according to the preceding claim, characterized in that the button (1) equipped with the flexible reset blade (3) and the anti-vibration blade (11) is a moulded plastic component.
EP20100306044 2010-09-28 2010-09-28 Improvement of a contactor button. Active EP2434518B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100306044 EP2434518B1 (en) 2010-09-28 2010-09-28 Improvement of a contactor button.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100306044 EP2434518B1 (en) 2010-09-28 2010-09-28 Improvement of a contactor button.

Publications (2)

Publication Number Publication Date
EP2434518A1 EP2434518A1 (en) 2012-03-28
EP2434518B1 true EP2434518B1 (en) 2013-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100306044 Active EP2434518B1 (en) 2010-09-28 2010-09-28 Improvement of a contactor button.

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686189B1 (en) * 1992-01-14 1994-04-15 Hager Electro Sa IMPROVEMENT IN ELECTROMAGNETIC AND MANUAL SWITCHING DEVICES, SUCH AS RELAYS, CONTACTORS OR DAY-NIGHT CONTACTORS.
EP0645792B1 (en) * 1993-09-27 1995-06-07 Hager Electro S.A. Arc chambers defining unit
FR2735612B1 (en) * 1995-06-13 1997-09-12 Hager Electro IMPROVEMENT TO ELECTRIC CONTACTORS

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