EP1006549A1 - Electromechanical switching apparatus - Google Patents

Electromechanical switching apparatus Download PDF

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Publication number
EP1006549A1
EP1006549A1 EP99402973A EP99402973A EP1006549A1 EP 1006549 A1 EP1006549 A1 EP 1006549A1 EP 99402973 A EP99402973 A EP 99402973A EP 99402973 A EP99402973 A EP 99402973A EP 1006549 A1 EP1006549 A1 EP 1006549A1
Authority
EP
European Patent Office
Prior art keywords
contact carrier
movable
mobile
switch device
pallet
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
EP99402973A
Other languages
German (de)
French (fr)
Other versions
EP1006549B1 (en
Inventor
Patrick Comtois
Patrick Larcher
Alain Moreux
Régis Perrocheau
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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Filing date
Publication date
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Publication of EP1006549A1 publication Critical patent/EP1006549A1/en
Application granted granted Critical
Publication of EP1006549B1 publication Critical patent/EP1006549B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H2050/046—Assembling parts of a relay by using snap mounting techniques
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/545—Self-contained, easily replaceable microswitches

Definitions

  • the present invention relates to an electromagnetic switch device comprising a movable contact carrier equipped with a set of contact bridges cooperating with fixed contacts, and comprising an electromagnet constituted by a coil, a fixed armature and a movable armature, the movable armature of the electromagnet being associated with the contact carrier and ensuring the operation of the contact carrier in translation so as to open or close the contacts.
  • the patent FR 2518308 describes an electromagnetic switch device of the contactor type comprising an electromagnet operating on alternating current.
  • the contactor contact carrier has a lower cavity in which is housed the movable armature of the electromagnet, the mobile armature being fixed at using a pin passing through the frame and introduced into the body of the contact carrier on each side of the cavity.
  • the moving armature of the electromagnet is a circuit magnetic E-shaped, commonly used for a current electromagnet alternative, and the method of assembly to the contact carrier is therefore well suited.
  • this mode would be difficult to implement for a movable armature of the paddle type used rather for a DC electromagnet, the paddle being indeed too thin for the crossing of such a pin.
  • US Patent 5,281,937 describes an electromagnetic switch device of the contactor type comprising a movable armature of an electromagnet consisting of a flat pallet, the shape of which is adapted so that it can be fixed to the contact carrier mobile of the contactor, using elastic snap tabs arranged on this contact holder.
  • This method of attachment is not, however, directly adaptable to a mobile armature consisting of an E-shaped magnetic circuit
  • the invention therefore relates to an electromagnetic switch device of which the different types of movable armatures of electromagnets (especially current direct or alternating current) can be assembled with the same contact carrier mobile, the association being advantageously carried out quickly, allowing thus significantly reducing the number of different parts required for the manufacture of a whole range of contactors.
  • the switch device comprises a contact holder mobile equipped with a set of contact bridges and includes an electromagnet consisting of a coil, a fixed frame and a movable frame.
  • This movable armature is assembled by snap-fastening to the movable contact carrier by assembly means adapted to allow both direct assembly and indirect assembly.
  • the assembly means comprise at least one elastic snap tab.
  • the assembly is direct when the moving armature of the electromagnet is a magnetic pallet comprising direct assembly means which consist of two lugs of the pallet directly snapped into the elastic tabs of the movable contact carrier.
  • the assembly is indirect when the movable armature of the electromagnet is for example a mobile magnetic circuit comprising indirect assembly means which are constituted by an intermediate piece, secured to this magnetic circuit and snaps into the elastic tabs of the movable contact carrier.
  • the switch device 1 illustrated in FIG. 1 is a contactor electromagnetic system comprising several double-break power poles.
  • Each power pole includes a movable contact bridge 10 provided contact pads 11 and 12 which cooperate with fixed contacts 13 and 14.
  • Each contact bridge 10 is mounted in a central reception housing 21 provided in the body 20 of a movable contact carrier 2. The movable contact bridges 10 are moved by the translational operation of the movable contact carrier 2 which is actuated by means of an electromagnet 3.
  • the electromagnet 3 comprises a coil 31, an armature fixed 32 and a movable armature 30 of the plunging type which is subjected to pressure a conical spring 37 mounted under it, the spring being relaxed when said armature is in rest position.
  • the attraction of the movable frame 30 towards the frame fixed 32 causes the movable contact carrier 2 to move in translation so to get the contacts closed.
  • the opening of the contacts is caused by the displacement of the movable armature 30 towards its rest position by means of the spring 37 which passes from a compressed position to a relaxed position.
  • the body 20 of the movable contact carrier 2 is extended by two parts lower 22 located on either side of the contact carrier 2 in the direction of the electromagnet 3.
  • the movable armature 30 of the electromagnet is fixed to the two parts 22 of the movable contact carrier 2 by means of assembly of the type snap-in.
  • these assembly means consist of at least one elastic snap tab 23.
  • each lower part 22 of the contact carrier 2 has an elastic tab latch 23 each having a latch 24 directed inward of the body 20 as well as, under this hooking notch 24, an internal lateral panel 24a oblique.
  • Each notch 24 also has an upper rim 24b directed towards the body 20.
  • the movable armature 30 is a circuit laminated mobile magnetic 33, E-shaped, having a core 35 of axis longitudinal X, an orifice 34 of rectangular section drilled in the core 35 transversely to the longitudinal axis X and three branches 36 perpendicular to this core intended to be attracted by the fixed armature 32 during the passage of a current in the coil 31.
  • This type of movable armature is generally used for an electromagnet alternating current.
  • the means of indirect assembly of the mobile magnetic circuit 33 at contact carrier 2 are constituted by an intermediate piece, such as a key metallic 4, which is necessary since the dimensions of the mobile circuit 33 are not adapted to the spacing of the elastic tabs 23.
  • This key 4 is shaped substantially parallelepiped and has two ends 40 in the direction of the length. To secure it with the mobile circuit 33, it is inserted so elastic in the orifice 34 of the core 35. Once inserted, the key 4 has a longitudinal curvature which allows it to remain in a fixed position by resting on the internal walls of the orifice 34. Finally, the key 4 has a length sufficient to be snap-fit between the two elastic tabs 23, as well as a small width and a small thickness, so that its two ends 40 can be housed inside the notches 24.
  • the movable frame 30 is a pallet magnetic 38 of substantially parallelepiped shape, commonly used for a direct current electromagnet, and which has a flat upper face 38b in direction of the contact carrier 2.
  • the means of direct assembly of the pallet movable magnetic 38 to the contact carrier 2 are constituted by two pins 38a located on opposite edges of the pallet 38, provided with a chamfer 38c and intended to be directly snapped into the elastic tabs 23 of the movable contact carrier 2.
  • an isolation flange 27 located below the housings central 21 and above the elastic tabs 23 makes it possible to partition the poles of power vis-à-vis the movable frame in order to avoid any damage to the electromagnet during an arc cut when the contacts open.
  • positioning means 50 are provided on said flange. These means consist of at least two bosses 51 arranged on the underside 27a of the flange 27. They are advantageously separated by a distance equivalent to the width of the core 35 of the mobile circuit 33 in an E shape so as to cooperate with the edges of the soul so that it is positioned and fits between these two bosses.
  • the magnetic pallet 38 has a thickness such that once assembled with contact carrier 2, it can rest directly against the edges upper 24b notches 24 and against the underside 27a of the flange 27.
  • Des means 52 complementary to means 50 are present on the upper face 38b of the pallet 38. These complementary means 52 may consist of cavities which cooperate with the bosses 51 to position and wedge the pallet 38 against the isolation flange 27.
  • the key 4 comprises, near its ends 40, two orifices 41 into which can come lean on a tool which will be used to exert the pushing movement necessary to the mobile circuit snap-in.
  • Port 34 of rectangular section, has four internal walls, the upper internal wall 34b representing that being closest to the flange insulation 27. At its two ends, the orifice 34 forms four edges at right angles with the core 35 of the magnetic circuit 33, the upper edge 34a corresponding to the edge formed by the upper internal wall 34b.
  • the shape of the key 4 has a curvature longitudinal thanks to which it rests only on three support points: on the one hand the two ends 40 of the key 4 rest on the upper edges 24b of the notches attachment 24 (see Figures 6 and 7) and on the other hand the central part of the key 4 rests on the upper internal wall 34b of the orifice 34.
  • the key 4 exerts an elastic pressure on the upper internal wall 34b of the orifice 34 contributing to press the movable circuit 33 against the underside 27a of the flange 27 of the contact carrier 2, between the two bosses 51.
  • the longitudinal curvature of the key 4 allows it not to be in contact with the upper edges 34a of the orifice 34, which would cause premature wear of this key after a certain number of operations of the electromagnetic of the electromagnetic contactor.
  • the assembly takes place in an identical way when the movable frame of the electromagnet is a pallet 38.
  • the chamfers 38c of the two lugs 38a are pressed against the oblique faces 24a, then by a pushing movement of the pallet 38 towards the flange according to the arrow F, the elastic tabs 23 move outwards from the body 20 of the contact carrier movable to allow the pins 38a of the pallet to be inserted into the notches 24 elastic legs.

Abstract

The contactor has a moving armature (30) attached by snap-fastening using at least one tab made of elastic material to the moving contact set (11, 12) mounted on a carrier (2). The contactor may be assembled by fitting the carrier to the moving armature by snap fastening either directly, or indirectly, by means of an additional intermediate piece.

Description

La présente invention concerne un appareil interrupteur électromagnétique comprenant un porte-contacts mobile équipé d'un ensemble de ponts de contacts coopérant avec des contacts fixes, et comprenant un électro-aimant constitué par une bobine, une armature fixe et une armature mobile, l'armature mobile de l'électro-aimant étant associée au porte-contacts et assurant la manoeuvre du porte-contacts en translation de manière à ouvrir ou fermer les contacts.The present invention relates to an electromagnetic switch device comprising a movable contact carrier equipped with a set of contact bridges cooperating with fixed contacts, and comprising an electromagnet constituted by a coil, a fixed armature and a movable armature, the movable armature of the electromagnet being associated with the contact carrier and ensuring the operation of the contact carrier in translation so as to open or close the contacts.

Le brevet FR 2518308 décrit un appareil interrupteur électromagnétique du type contacteur comportant un électro-aimant fonctionnant en courant alternatif. Le porte-contacts du contacteur présente une cavité inférieure dans laquelle est logée l'armature mobile de l'électro-aimant, la fixation de l'armature mobile étant réalisée à l'aide d'une goupille traversant l'armature et introduite dans le corps du porte-contacts de chaque côté de la cavité. L'armature mobile de l'électro-aimant est un circuit magnétique en forme de E, couramment utilisé pour un électro-aimant à courant alternatif, et le mode d'assemblage au porte-contacts est par conséquent bien adapté. Cependant, ce mode serait difficile à mettre en oeuvre pour une armature mobile du type à palette utilisée plutôt pour un électro-aimant à courant continu, la palette étant en effet de trop faible épaisseur pour la traversée d'une telle goupille.The patent FR 2518308 describes an electromagnetic switch device of the contactor type comprising an electromagnet operating on alternating current. The contactor contact carrier has a lower cavity in which is housed the movable armature of the electromagnet, the mobile armature being fixed at using a pin passing through the frame and introduced into the body of the contact carrier on each side of the cavity. The moving armature of the electromagnet is a circuit magnetic E-shaped, commonly used for a current electromagnet alternative, and the method of assembly to the contact carrier is therefore well suited. However, this mode would be difficult to implement for a movable armature of the paddle type used rather for a DC electromagnet, the paddle being indeed too thin for the crossing of such a pin.

Le brevet US 5281937 décrit un appareil interrupteur électromagnétique du type contacteur comprenant une armature mobile d'un électro-aimant constituée d'une palette plane, dont la forme est adaptée pour qu'elle puisse se fixer au porte-contacts mobile du contacteur, à l'aide de pattes élastiques d'encliquetage disposées sur ce porte-contacts. Ce mode de fixation n'est cependant pas directement adaptable à une armature mobile constitué d'un circuit magnétique en forme de E.US Patent 5,281,937 describes an electromagnetic switch device of the contactor type comprising a movable armature of an electromagnet consisting of a flat pallet, the shape of which is adapted so that it can be fixed to the contact carrier mobile of the contactor, using elastic snap tabs arranged on this contact holder. This method of attachment is not, however, directly adaptable to a mobile armature consisting of an E-shaped magnetic circuit

L'invention a donc pour objet un appareil interrupteur électromagnétique dont les différents types d'armatures mobiles d'électro-aimants (notamment à courant continu ou à courant alternatif) peuvent s'assembler avec un même porte-contacts mobile, l'association étant avantageusement réalisée de manière rapide, permettant ainsi de réduire considérablement le nombre de pièces différentes nécessaires à la fabrication de toute une gamme de contacteurs.The invention therefore relates to an electromagnetic switch device of which the different types of movable armatures of electromagnets (especially current direct or alternating current) can be assembled with the same contact carrier mobile, the association being advantageously carried out quickly, allowing thus significantly reducing the number of different parts required for the manufacture of a whole range of contactors.

Conformément à l'invention, l'appareil interrupteur comprend un porte-contacts mobile équipé d'un ensemble de ponts de contacts et comprend un électro-aimant constitué par une bobine, une armature fixe et une armature mobile. Cette armature mobile est assemblée par encliquetage au porte-contacts mobile par des moyens d'assemblage adaptés pour permettre aussi bien un assemblage direct qu'un assemblage indirect. Sur le porte-contacts mobile, les moyens d'assemblage comportent, au moins une patte élastique d'encliquetage. Par exemple, l'assemblage est direct quand l'armature mobile de l'électro-aimant est une palette magnétique comprenant des moyens d'assemblage direct qui sont constitués par deux ergots de la palette directement encliquetables dans les pattes élastiques du porte-contacts mobile. L'assemblage est indirect quand l'armature mobile de l'électro-aimant est par exemple un circuit magnétique mobile comprenant des moyens d'assemblage indirect qui sont constitués par une pièce intermédiaire, solidarisée avec ce circuit magnétique et encliquetable dans les pattes élastiques du porte-contacts mobile.According to the invention, the switch device comprises a contact holder mobile equipped with a set of contact bridges and includes an electromagnet consisting of a coil, a fixed frame and a movable frame. This movable armature is assembled by snap-fastening to the movable contact carrier by assembly means adapted to allow both direct assembly and indirect assembly. On the mobile contact carrier, the assembly means comprise at least one elastic snap tab. For example, the assembly is direct when the moving armature of the electromagnet is a magnetic pallet comprising direct assembly means which consist of two lugs of the pallet directly snapped into the elastic tabs of the movable contact carrier. The assembly is indirect when the movable armature of the electromagnet is for example a mobile magnetic circuit comprising indirect assembly means which are constituted by an intermediate piece, secured to this magnetic circuit and snaps into the elastic tabs of the movable contact carrier.

D'autres caractéristiques apparaítront à la lecture de la description qui va suivre et en regard des dessins annexés, parmi lesquels :

  • la figure 1 est une vue en coupe de l'appareil interrupteur électromagnétique conforme à l'invention;
  • la figure 2 est une vue en perspective du porte-contacts mobile de l'appareil associé à un premier type d'armature mobile d'un électro-aimant;
  • la figure 3 est une vue en coupe de l'association de la figure 2;
  • la figure 4 reprend la figure 2 avec un second type d'armature mobile; - la figure 5 est une vue en coupe de l'association de la figure 4;
  • les figures 6 et 7 illustrent l'assemblage du porte-contacts et de l'armature mobile de la figure 2.
Other characteristics will appear on reading the description which follows and with reference to the appended drawings, among which:
  • Figure 1 is a sectional view of the electromagnetic switch device according to the invention;
  • Figure 2 is a perspective view of the movable contact carrier of the apparatus associated with a first type of movable armature of an electromagnet;
  • Figure 3 is a sectional view of the combination of Figure 2;
  • Figure 4 reproduces Figure 2 with a second type of movable frame; - Figure 5 is a sectional view of the association of Figure 4;
  • Figures 6 and 7 illustrate the assembly of the contact carrier and the movable frame of Figure 2.

L'appareil interrupteur 1 illustré à la figure 1 est un contacteur électromagnétique comprenant plusieurs pôles de puissance à double coupure.The switch device 1 illustrated in FIG. 1 is a contactor electromagnetic system comprising several double-break power poles.

Chaque pôle de puissance comprend un pont de contacts mobiles 10 doté de pastilles de contacts 11 et 12 qui coopèrent avec des contacts fixes 13 et 14. Chaque pont de contacts 10 est monté dans un logement central d'accueil 21 prévu dans le corps 20 d'un porte-contacts mobile 2. Les ponts de contacts mobiles 10 sont déplacés par la manoeuvre en translation du porte-contacts mobile 2 qui est actionné au moyen d'un électro-aimant 3.Each power pole includes a movable contact bridge 10 provided contact pads 11 and 12 which cooperate with fixed contacts 13 and 14. Each contact bridge 10 is mounted in a central reception housing 21 provided in the body 20 of a movable contact carrier 2. The movable contact bridges 10 are moved by the translational operation of the movable contact carrier 2 which is actuated by means of an electromagnet 3.

Dans la figure 1, l'électro-aimant 3 comprend une bobine 31, une armature fixe 32 et une armature mobile 30 du genre plongeante qui est soumise à la pression d'un ressort conique 37 monté sous elle, le ressort étant détendu lorsque ladite armature est en position de repos. L'attraction de l'armature mobile 30 vers l'armature fixe 32 provoque le déplacement en translation du porte-contacts mobile 2 de manière à obtenir la fermeture des contacts. L'ouverture des contacts est provoquée par le déplacement de l'armature mobile 30 vers sa position de repos au moyen du ressort 37 qui passe d'une position comprimée à une position détendue. In FIG. 1, the electromagnet 3 comprises a coil 31, an armature fixed 32 and a movable armature 30 of the plunging type which is subjected to pressure a conical spring 37 mounted under it, the spring being relaxed when said armature is in rest position. The attraction of the movable frame 30 towards the frame fixed 32 causes the movable contact carrier 2 to move in translation so to get the contacts closed. The opening of the contacts is caused by the displacement of the movable armature 30 towards its rest position by means of the spring 37 which passes from a compressed position to a relaxed position.

Le corps 20 du porte-contacts mobile 2 est prolongé par deux parties inférieures 22 situées de part et d'autre du porte-contacts 2 en direction de l'électro-aimant 3. L'armature mobile 30 de l'électro-aimant est fixée aux deux parties inférieures 22 du porte-contacts mobile 2 grâce à des moyens d'assemblage du type à encliquetage. Sur le porte-contacts 2, ces moyens d'assemblage sont constitués par au moins une patte élastique d'encliquetage 23. Suivant un mode de réalisation préféré, chaque partie inférieure 22 du porte-contacts 2 possède une patte élastique d'encliquetage 23 présentant chacune un cran d'accrochage 24 dirigé vers l'intérieur du corps 20 ainsi que, sous ce cran d'accrochage 24, un pan latéral interne 24a oblique. Chaque cran 24 comporte également un rebord supérieur 24b dirigé vers le corps 20.The body 20 of the movable contact carrier 2 is extended by two parts lower 22 located on either side of the contact carrier 2 in the direction of the electromagnet 3. The movable armature 30 of the electromagnet is fixed to the two parts 22 of the movable contact carrier 2 by means of assembly of the type snap-in. On the contact carrier 2, these assembly means consist of at least one elastic snap tab 23. According to one embodiment preferred, each lower part 22 of the contact carrier 2 has an elastic tab latch 23 each having a latch 24 directed inward of the body 20 as well as, under this hooking notch 24, an internal lateral panel 24a oblique. Each notch 24 also has an upper rim 24b directed towards the body 20.

Dans l'exemple illustré en figure 2, l'armature mobile 30 est un circuit magnétique mobile feuilleté 33, en forme de E, comportant une âme 35 d'axe longitudinal X, un orifice 34 de section rectangulaire percé dans l'âme 35 transversalement à l'axe longitudinal X et trois branches 36 perpendiculaires à cet âme destinées à être attirées par l'armature fixe 32 lors du passage d'un courant dans la bobine 31. Ce type d'armature mobile est généralement utilisée pour un électro-aimant à courant alternatif.In the example illustrated in Figure 2, the movable armature 30 is a circuit laminated mobile magnetic 33, E-shaped, having a core 35 of axis longitudinal X, an orifice 34 of rectangular section drilled in the core 35 transversely to the longitudinal axis X and three branches 36 perpendicular to this core intended to be attracted by the fixed armature 32 during the passage of a current in the coil 31. This type of movable armature is generally used for an electromagnet alternating current.

Les moyens d'assemblage indirect du circuit magnétique mobile 33 au porte-contacts 2 sont constitués par une pièce intermédiaire, tels qu'une clavette métallique 4, qui est nécessaire vu que les dimensions du circuit mobile 33 ne sont pas adaptées à l'écartement des pattes élastiques 23. Cette clavette 4 est de forme sensiblement parallélépipédique et possède deux extrémités 40 dans le sens de la longueur. Pour la solidariser avec le circuit mobile 33, elle est insérée de façon élastique dans l'orifice 34 de l'âme 35. Une fois insérée, la clavette 4 présente une courbure longitudinale qui lui permet de se maintenir en position fixe en s'appuyant sur les parois internes de l'orifice 34. Enfin, la clavette 4 a une longueur suffisante pour être encliquetable entre les deux pattes élastiques 23, ainsi qu'une faible largeur et une faible épaisseur, de façon à ce que ses deux extrémités 40 puissent se loger à l'intérieur des crans 24.The means of indirect assembly of the mobile magnetic circuit 33 at contact carrier 2 are constituted by an intermediate piece, such as a key metallic 4, which is necessary since the dimensions of the mobile circuit 33 are not adapted to the spacing of the elastic tabs 23. This key 4 is shaped substantially parallelepiped and has two ends 40 in the direction of the length. To secure it with the mobile circuit 33, it is inserted so elastic in the orifice 34 of the core 35. Once inserted, the key 4 has a longitudinal curvature which allows it to remain in a fixed position by resting on the internal walls of the orifice 34. Finally, the key 4 has a length sufficient to be snap-fit between the two elastic tabs 23, as well as a small width and a small thickness, so that its two ends 40 can be housed inside the notches 24.

Dans l'exemple illustré en figure 4, l'armature mobile 30 est une palette magnétique 38 de forme sensiblement parallélépipédique, couramment utilisée pour un électro-aimant à courant continu, et qui comporte une face supérieure plane 38b en direction du porte-contacts 2. Les moyens d'assemblage direct de la palette magnétique mobile 38 au porte-contacts 2 sont constitués par deux ergots 38a situés sur des arêtes opposées de la palette 38, munis d'un chanfrein 38c et destinés à être directement encliquetés dans les pattes élastiques 23 du porte-contacts mobile 2.In the example illustrated in Figure 4, the movable frame 30 is a pallet magnetic 38 of substantially parallelepiped shape, commonly used for a direct current electromagnet, and which has a flat upper face 38b in direction of the contact carrier 2. The means of direct assembly of the pallet movable magnetic 38 to the contact carrier 2 are constituted by two pins 38a located on opposite edges of the pallet 38, provided with a chamfer 38c and intended to be directly snapped into the elastic tabs 23 of the movable contact carrier 2.

Par ailleurs, un flasque d'isolement 27 situé en dessous des logements centraux 21 et au-dessus des pattes élastiques 23 permet de cloisonner les pôles de puissance vis-à-vis de l'armature mobile afin d'éviter tout endommagement de l'électro-aimant lors d'une coupure d'arc à l'ouverture des contacts.Furthermore, an isolation flange 27 located below the housings central 21 and above the elastic tabs 23 makes it possible to partition the poles of power vis-à-vis the movable frame in order to avoid any damage to the electromagnet during an arc cut when the contacts open.

Les dimensions de la partie inférieure 22 du porte-contacts mobile relatives au positionnement des pattes élastiques 23 et du flasque d'isolement 27 sont calculées de façon que l'armature mobile 30 soit plaquée contre une face inférieure 27a dudit flasque pour gagner en encombrement interne de l'appareil. Ainsi, pour conforter la butée de l'armature mobile et son calage contre le flasque d'isolement 27, des moyens de positionnement 50 sont prévus sur ledit flasque. Ces moyens consistent en au moins deux bossages 51 disposés sur la face inférieure 27a du flasque 27. Ils sont avantageusement écartés d'une distance équivalente à la largeur de l'âme 35 du circuit mobile 33 en forme de E de manière à coopérer avec les bords de l'âme pour que celle-ci se positionne et s'emboíte entre ces deux bossages.The dimensions of the lower part 22 of the movable contact carrier relative the positioning of the elastic tabs 23 and of the isolation flange 27 are calculated so that the movable armature 30 is pressed against a lower face 27a of said flange to gain internal bulk of the device. So, for reinforce the stop of the movable frame and its setting against the isolation flange 27, positioning means 50 are provided on said flange. These means consist of at least two bosses 51 arranged on the underside 27a of the flange 27. They are advantageously separated by a distance equivalent to the width of the core 35 of the mobile circuit 33 in an E shape so as to cooperate with the edges of the soul so that it is positioned and fits between these two bosses.

La palette magnétique 38 possède une épaisseur telle qu'une fois assemblée avec le porte-contacts 2, elle puisse reposer directement contre les rebords supérieurs 24b des crans 24 et contre la face inférieure 27a du flasque 27. Des moyens 52 complémentaires aux moyens 50 sont présents sur la face supérieure 38b de la palette 38. Ces moyens complémentaires 52 peuvent être constitués de cavités qui coopèrent avec les bossages 51 pour positionner et caler la palette 38 contre le flasque d'isolement 27.The magnetic pallet 38 has a thickness such that once assembled with contact carrier 2, it can rest directly against the edges upper 24b notches 24 and against the underside 27a of the flange 27. Des means 52 complementary to means 50 are present on the upper face 38b of the pallet 38. These complementary means 52 may consist of cavities which cooperate with the bosses 51 to position and wedge the pallet 38 against the isolation flange 27.

Le montage de l'armature mobile de l'électro-aimant sur le porte-contacts mobile 2 se fait à la manière d'un encliquetage, comme illustré aux figures 6 et 7. L'armature mobile 30, ici le circuit mobile 33 en forme de E, est amenée à proximité de la partie inférieure 22 du porte-contacts mobile parallèlement à la face inférieure 27a du flasque 27, la clavette 4 étant positionnée selon un axe Y passant par les deux pattes élastiques 23. Les extrémités 40 de la clavette 4 sont ensuite appuyées contre les pans obliques 24a des pattes élastiques 23, puis par un mouvement de poussée vers le flasque suivant la flèche F, les pattes élastiques 23 s'écartent vers l'extérieur du corps 20 du porte-contacts mobile pour permettre d'insérer les extrémités 40 de la clavette dans les crans 24. Au moment de l'insertion, le fait de relâcher le circuit mobile 33 entraíne le retour en position de repos des pattes élastiques 23, ce qui réalise la retenue de l'armature. Pour faciliter cette opération de montage, la clavette 4 comporte, à proximité de ses extrémités 40, deux orifices 41 dans lesquels peut venir s'appuyer un outil qui servira à exercer le mouvement de poussée nécessaire à l'encliquetage du circuit mobile.Installation of the movable armature of the electromagnet on the contact carrier mobile 2 is done in the manner of a snap-in, as illustrated in Figures 6 and 7. The movable frame 30, here the E-shaped movable circuit 33, is brought close to the lower part 22 of the movable contact carrier parallel to the lower face 27a of the flange 27, the key 4 being positioned along an axis Y passing through the two elastic tabs 23. The ends 40 of the key 4 are then pressed against the oblique sections 24a of the elastic tabs 23, then by a pushing movement towards the flange according to arrow F, the elastic tabs 23 move outward of the body 20 of the movable contact carrier to allow insertion of the ends 40 of the key in the notches 24. At the time of insertion, releasing the circuit mobile 33 causes the return of the elastic tabs 23 to the rest position, which retains the reinforcement. To facilitate this mounting operation, the key 4 comprises, near its ends 40, two orifices 41 into which can come lean on a tool which will be used to exert the pushing movement necessary to the mobile circuit snap-in.

L'orifice 34, de section rectangulaire, possède quatre parois internes, la paroi interne supérieure 34b représentant celle étant la plus proche du flasque d'isolement 27. A ses deux extrémités, l'orifice 34 forme quatre arêtes à angle droit avec l'âme 35 du circuit magnétique 33, l'arête supérieure 34a correspondant à l'arête formée par la paroi interne supérieure 34b. Une fois l'armature mobile 33 montée sur le porte-contacts mobile 2, la forme de la clavette 4 présente une courbure longitudinale grâce à laquelle elle ne repose que sur trois points d'appui : d'une part les deux extrémités 40 de la clavette 4 reposent sur les rebords supérieurs 24b des crans d'accrochage 24 (voir figures 6 et 7) et d'autre part la partie centrale de la clavette 4 repose sur la paroi interne supérieure 34b de l'orifice 34. Ainsi, en prenant appui sur les rebords supérieurs 24b des crans 24, la clavette 4 exerce une pression élastique sur la paroi interne supérieure 34b de l'orifice 34 contribuant à plaquer le circuit mobile 33 contre la face inférieure 27a du flasque 27 du porte-contacts 2, entre les deux bossages 51. De plus, la courbure longitudinale de la clavette 4 lui permet de ne pas se trouver en contact avec les arêtes supérieures 34a de l'orifice 34, ce qui entraínerait une usure prématurée de cette clavette au bout d'un certain nombre de manoeuvres de l'électro-aimant du contacteur électromagnétique.Port 34, of rectangular section, has four internal walls, the upper internal wall 34b representing that being closest to the flange insulation 27. At its two ends, the orifice 34 forms four edges at right angles with the core 35 of the magnetic circuit 33, the upper edge 34a corresponding to the edge formed by the upper internal wall 34b. Once the movable armature 33 is mounted on the movable contact carrier 2, the shape of the key 4 has a curvature longitudinal thanks to which it rests only on three support points: on the one hand the two ends 40 of the key 4 rest on the upper edges 24b of the notches attachment 24 (see Figures 6 and 7) and on the other hand the central part of the key 4 rests on the upper internal wall 34b of the orifice 34. Thus, by resting on the upper edges 24b of the notches 24, the key 4 exerts an elastic pressure on the upper internal wall 34b of the orifice 34 contributing to press the movable circuit 33 against the underside 27a of the flange 27 of the contact carrier 2, between the two bosses 51. In addition, the longitudinal curvature of the key 4 allows it not to be in contact with the upper edges 34a of the orifice 34, which would cause premature wear of this key after a certain number of operations of the electromagnetic of the electromagnetic contactor.

Le montage se déroule de manière identique quand l'armature mobile de l'électro-aimant est une palette 38. Une fois celle-ci amenée à proximité de la partie inférieure 22 du porte-contacts mobile parallèlement à la face inférieure 27a du flasque 27, les chanfreins 38c des deux ergots 38a sont appuyés contre les pans obliques 24a, puis par un mouvement de poussée de la palette 38 vers le flasque suivant la flèche F, les pattes élastiques 23 s'écartent vers l'extérieur du corps 20 du porte-contacts mobile pour permettre d'insérer les ergots 38a de la palette dans les crans 24 des pattes élastiques.The assembly takes place in an identical way when the movable frame of the electromagnet is a pallet 38. Once this brought close to the part lower 22 of the movable contact carrier parallel to the lower face 27a of the flange 27, the chamfers 38c of the two lugs 38a are pressed against the oblique faces 24a, then by a pushing movement of the pallet 38 towards the flange according to the arrow F, the elastic tabs 23 move outwards from the body 20 of the contact carrier movable to allow the pins 38a of the pallet to be inserted into the notches 24 elastic legs.

Claims (10)

Appareil interrupteur électromagnétique comprenant un porte-contacts mobile (2) équipé d'un ensemble de ponts de contacts (10) qui portent des contacts mobiles de puissance (11, 12) coopérant avec des contacts fixes (13, 14) et comprenant un électro-aimant (3) constitué par une bobine (31), une armature fixe (32) et une armature mobile (30), l'armature mobile (30) étant fixée par encliquetage au porte-contacts mobile (2) par des moyens d'assemblage qui comprennent au moins une patte élastique d'encliquetage (23) sur le porte-contacts mobile (2), caractérisé en ce que ces moyens d'assemblage sont adaptés pour permettre aussi bien un assemblage direct qu'un assemblage indirect de l'armature mobile (30) sur le porte-contacts mobile (2).Electromagnetic switch device comprising a contact carrier mobile (2) equipped with a set of contact bridges (10) which carry contacts power mobiles (11, 12) cooperating with fixed contacts (13, 14) and comprising an electromagnet (3) constituted by a coil (31), a fixed armature (32) and a movable frame (30), the movable frame (30) being snap-fastened to the movable contact carrier (2) by assembly means which comprise at less an elastic snap tab (23) on the movable contact carrier (2), characterized in that these assembly means are adapted to also allow both direct assembly and indirect assembly of the movable armature (30) on the mobile contact carrier (2). Appareil interrupteur électromagnétique selon la revendication 1, dans lequel l'armature mobile (30) de l'électro-aimant est constituée par un circuit magnétique mobile (33), par exemple en forme de E, doté d'une âme longitudinale (35) et par des moyens d'assemblage indirect permettant un assemblage indirect du circuit magnétique mobile (33) sur le porte-contacts mobile (2) caractérisé en ce que ces moyens d'assemblage indirect comprennent une clavette (4) qui est solidarisée à l'armature mobile (30) par insertion élastique dans un orifice (34) de l'âme (35) du circuit mobile (33) et dont les deux extrémités (40) sont destinées à être encliquetées dans les pattes élastiques (23) du porte-contacts mobile (2).Electromagnetic switchgear according to claim 1, in which the movable armature (30) of the electromagnet is constituted by a circuit mobile magnetic (33), for example E-shaped, with a longitudinal core (35) and by indirect assembly means allowing indirect assembly of the mobile magnetic circuit (33) on the mobile contact carrier (2) characterized in that these indirect assembly means comprise a key (4) which is secured to the movable armature (30) by elastic insertion into an orifice (34) of the core (35) of the mobile circuit (33) and whose two ends (40) are intended to be snapped in the elastic tabs (23) of the movable contact carrier (2). Appareil interrupteur électromagnétique selon la revendication 2, caractérisé en ce que la clavette (4) présente une courbure longitudinale lui permettant d'exercer une pression élastique pour contribuer au maintien du circuit mobile (33) contre le porte-contacts mobile (2) tout en évitant que la clavette (4) ne se trouve en contact avec les arêtes supérieures (34a) de l'orifice (34).Electromagnetic switch device according to claim 2, characterized in that the key (4) has a longitudinal curvature allowing to exert an elastic pressure to contribute to the maintenance of the circuit movable (33) against the movable contact carrier (2) while preventing the key (4) from is in contact with the upper edges (34a) of the orifice (34). Appareil interrupteur électromagnétique selon la revendication 1, dans lequel l'armature mobile (30) de l'électro-aimant est constituée par une palette magnétique (38) dotée de moyens d'assemblage direct permettant un assemblage direct de la palette magnétique (38) sur le porte-contacts mobile (2) caractérisé en ce que ces moyens d'assemblage direct comprennent deux ergots (38a) situés sur des arêtes opposées de la palette (38) et destinés à être encliquetés dans les pattes élastiques (23) du porte-contacts mobile (2).Electromagnetic switchgear according to claim 1, in which the movable armature (30) of the electromagnet is constituted by a pallet magnetic (38) provided with direct assembly means allowing an assembly direct from the magnetic pallet (38) to the movable contact carrier (2) characterized in that that these direct assembly means comprise two pins (38a) located on opposite edges of the pallet (38) and intended to be snapped into the legs elastic (23) of the movable contact carrier (2). Appareil interrupteur électromagnétique selon la revendication 1, caractérisé en ce que le porte-contacts mobile (2) comprend des logements centraux (21) accueillant les ponts de contacts mobiles (10), et un flasque d'isolement (27) muni d'une face inférieure (27a), ce flasque d'isolement (27) étant situé entre les logements centraux (21) et les pattes élastiques (23) de manière à assurer une protection de l'électro-aimant (3) lors d'une ouverture des contacts.Electromagnetic switch device according to claim 1, characterized in that the movable contact carrier (2) comprises central housings (21) accommodating the movable contact bridges (10), and an isolation flange (27) provided with a lower face (27a), this isolation flange (27) being located between the central housings (21) and the elastic tabs (23) so as to ensure protection of the electromagnet (3) when the contacts open. Appareil interrupteur électromagnétique selon la revendication 1, caractérisé en ce que le flasque d'isolement (27) est pourvu de moyens de positionnement (50) sur sa face inférieure (27a) de manière à assurer un calage de la palette (38) ou du circuit mobile (33) contre le flasque.Electromagnetic switch device according to claim 1, characterized in that the isolation flange (27) is provided with means for positioning (50) on its underside (27a) so as to ensure that the pallet (38) or of the mobile circuit (33) against the flange. Appareil interrupteur électromagnétique selon la revendication 6, caractérisé en ce que les moyens de positionnement (50) sont constitués par au moins deux bossages (51) sur la face inférieure (27a) du flasque d'isolement (27).Electromagnetic switch device according to claim 6, characterized in that the positioning means (50) consist of at at least two bosses (51) on the underside (27a) of the isolation flange (27). Appareil interrupteur électromagnétique selon la revendication 6, caractérisé en ce que les moyens de positionnement (50) sont écartés d'une distance équivalente à la largeur de l'âme (35) du circuit mobile (33).Electromagnetic switch device according to claim 6, characterized in that the positioning means (50) are spaced a distance equivalent to the width of the core (35) of the mobile circuit (33). Appareil interrupteur électromagnétique selon la revendication 6, caractérisé en ce que la palette (38) présente sur sa face supérieure (38b) des moyens complémentaires (52) destinés à coopérer avec les moyens de positionnement (50) situés sur la face inférieure (27a) du flasque d'isolement (27).Electromagnetic switch device according to claim 6, characterized in that the pallet (38) has on its upper face (38b) complementary means (52) intended to cooperate with the means of positioning (50) located on the underside (27a) of the isolation flange (27). Appareil interrupteur électromagnétique selon la revendication 9, caractérisé en ce que les moyens complémentaires (52) situés sur la palette (38) sont constitués par des cavités destinées à loger les bossages (51) du flasque d'isolement (27).Electromagnetic switch device according to claim 9, characterized in that the complementary means (52) located on the pallet (38) consist of cavities intended to accommodate the bosses (51) of the flange isolation (27).
EP99402973A 1998-12-01 1999-11-29 Electromechanical switching apparatus Expired - Lifetime EP1006549B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815184 1998-12-01
FR9815184 1998-12-01

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EP1006549A1 true EP1006549A1 (en) 2000-06-07
EP1006549B1 EP1006549B1 (en) 2006-11-02

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EP99402973A Expired - Lifetime EP1006549B1 (en) 1998-12-01 1999-11-29 Electromechanical switching apparatus

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US (1) US6239679B1 (en)
EP (1) EP1006549B1 (en)
DE (1) DE69933842T2 (en)
ES (1) ES2275333T3 (en)
UA (1) UA61989C2 (en)
ZA (1) ZA200003868B (en)

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CN106128860A (en) * 2016-07-24 2016-11-16 贵州天义电器有限责任公司 A kind of three-phase ac contactor with multichannel auxiliary contact

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JP3802998B2 (en) * 1999-07-26 2006-08-02 株式会社東海理化電機製作所 Rotary switch
JP5029731B2 (en) * 2010-07-08 2012-09-19 富士電機機器制御株式会社 Magnetic contactor
WO2015177958A1 (en) * 2014-05-20 2015-11-26 富士電機機器制御株式会社 Electromagnetic contactor

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FR2259429A1 (en) * 1974-01-28 1975-08-22 Bbc Brown Boveri & Cie Electromagnetic power relay - has sliding contact carrier and bayonet fitting ans spring
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FR2737603A1 (en) * 1995-08-04 1997-02-07 Schneider Electric Sa Electrical contactor with electromagnetically operated moving contacts - has insulating frame to support coil of fixed magnetic circuit, clamped within base and arc enclosure to fix subassembly position

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FR2259429A1 (en) * 1974-01-28 1975-08-22 Bbc Brown Boveri & Cie Electromagnetic power relay - has sliding contact carrier and bayonet fitting ans spring
US5281937A (en) * 1992-07-14 1994-01-25 Fasco Industries, Inc. Electromagnetic contactor and method for making same
FR2737603A1 (en) * 1995-08-04 1997-02-07 Schneider Electric Sa Electrical contactor with electromagnetically operated moving contacts - has insulating frame to support coil of fixed magnetic circuit, clamped within base and arc enclosure to fix subassembly position

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Publication number Priority date Publication date Assignee Title
CN106128860A (en) * 2016-07-24 2016-11-16 贵州天义电器有限责任公司 A kind of three-phase ac contactor with multichannel auxiliary contact
CN106128860B (en) * 2016-07-24 2018-06-26 贵州天义电器有限责任公司 A kind of three-phase ac contactor with multichannel auxiliary contact

Also Published As

Publication number Publication date
EP1006549B1 (en) 2006-11-02
DE69933842D1 (en) 2006-12-14
UA61989C2 (en) 2003-12-15
ES2275333T3 (en) 2007-06-01
DE69933842T2 (en) 2007-03-01
US6239679B1 (en) 2001-05-29
ZA200003868B (en) 2001-06-01

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