EP2565893A1 - Movable contact-holder carriage and electrical switchgear provided with such a carriage - Google Patents

Movable contact-holder carriage and electrical switchgear provided with such a carriage Download PDF

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Publication number
EP2565893A1
EP2565893A1 EP12360062A EP12360062A EP2565893A1 EP 2565893 A1 EP2565893 A1 EP 2565893A1 EP 12360062 A EP12360062 A EP 12360062A EP 12360062 A EP12360062 A EP 12360062A EP 2565893 A1 EP2565893 A1 EP 2565893A1
Authority
EP
European Patent Office
Prior art keywords
carriage
insulating support
movable contact
housing
movable
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
EP12360062A
Other languages
German (de)
French (fr)
Other versions
EP2565893B1 (en
Inventor
Marc Serpinet
Yves Trichard
Arnaud Marchal
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.)
Socomec SA
Original Assignee
Socomec SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Socomec SA filed Critical Socomec SA
Publication of EP2565893A1 publication Critical patent/EP2565893A1/en
Application granted granted Critical
Publication of EP2565893B1 publication Critical patent/EP2565893B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2083—Bridging contact surfaces directed at an oblique angle with respect to the movement of the bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the present invention relates to a mobile contact trolley for an electrical breaking device, said trolley having at least one housing arranged to receive a movable contact associated with a return member, and said trolley being intended to be coupled to an actuating mechanism belonging to said apparatus.
  • the invention also relates to an electrical switching device provided with a control module associated with at least one cut-off module corresponding to a phase of an electrical network, this cut-off module including at least one moving contact associated with at least one pair of fixed contacts, said movable contact being carried by a carriage coupled to an actuating mechanism controlled by said control module to be moved between at least one triggered position in which the movable contact is moved away from the fixed contacts and the electrical circuit is open, and an engaged position in which the movable contact bears against the fixed contacts and the electrical circuit is closed.
  • the movable contacts are arranged on or carried by a carriage.
  • This carriage is generally made of a single molded or injected part, made of synthetic or composite material, and serves to simultaneously operate the movable contacts of the different breaking modules fitted to the same device. cut according to the number of phases of the electrical network.
  • the set of constraints experienced by the truck such as heating, permanent mechanical forces, occasional mechanical forces of high intensity, etc. inevitably lead to deformation or even breakage of the truck. Maneuvering several phases from the same mobile carriage also poses insulation problems between the phases. These different constraints limit the technical performance of such a truck.
  • the present invention aims at overcoming these disadvantages by proposing a new design of a mobile contact trolley that can equip any type of electrical breaking device in which the movable contacts are closed by pressure on the fixed contacts, this trolley being arranged to support, without deformation, both permanent mechanical stresses under conditions of high temperature, for example of the order of 100 ° C, and exceptional mechanical forces, particularly in the case of welding of the contact areas, in order to increase the electrodynamic and mechanical endurance of the electric switchgear equipped with such a truck.
  • the invention relates to a carriage of the type indicated in the preamble, characterized in that it comprises at least one insulating support provided with said housing and at least one supporting structure encircling said insulating support to form around it a recovery belt. loads.
  • the supporting structure advantageously comprises at least one connecting piece intended to couple said carriage to the actuating mechanism belonging to said apparatus, this connecting piece preferably being positioned in a front part of said insulating support and traversing said housing transversely so as to to be resting on the movable contact opposite its return member, when said movable contact is mounted in said carriage.
  • the supporting structure further comprises a metal profile extending on the lateral sides and at the rear of said insulating support and the connecting piece comprises at least one metal axis passing through said insulating support and the lateral ends. said metal section.
  • the insulating support may comprise at least two superimposed parts, including a body in which is housed said movable contact and a base in which is housed at least in part said return member, said housing extending from said body to said sole.
  • the carriage comprises a plurality of housings arranged in parallel to receive a plurality of movable contacts, isolated from each other, these housings being able to have different depths for shifting said mobile contacts in space.
  • the housings are shifted two by two symmetrically with respect to said median axis to form stages.
  • the invention relates to a cutting device of the kind indicated in the preamble, characterized in that said carriage comprises at least one insulating support comprising said housing and at least one supporting structure encircling said insulating support to form around it a load taking belt, as defined above.
  • the electrical switching device 1 referred to in the invention usually consists of a control module 2 associated with one or more cutoff modules 3 each corresponding to a phase of an electrical network.
  • the device 1 is a three-phase device and comprises three cut-off modules 3.
  • Each cut-off module 3 comprises, in a known manner, an insulating housing 30 inside which at least two fixed contacts 4, forming a pair, extended outside said housing by connection terminals 40, and at least one movable contact 5 carried by a carriage 8 coupled to an actuating mechanism 6 controlled by the control module 2 to be moved between at least a triggered position in which it is away from the fixed contacts and the electrical circuit is open, and an engaged position in which it bears against the fixed contacts and the electrical circuit is closed.
  • the control module 2 can be operated manually by a handle 20 and / or automatically by a motor (not shown).
  • the cut-off device 1 comprises in the example shown fractionating chambers 7 arranged above the fixed contacts 4 and the movable contact 5 to capture, stretch, cool and then extinguish the electric arc generated by the current at each change of state of said apparatus.
  • This switching device 1 must be able to set and cut off so-called normal or fault currents from 0 to 10In, where In is the value of the nominal current that can pass through the device at all times. This device must also be able to establish, and if necessary cut, short-circuit currents whose value can reach 100 to 300 times the rated current In, without deformation or breaking of the carriage 8.
  • the fixed contacts 4 and the movable contact 5 are arranged to form an omega-shaped current loop, symmetrical with respect to a median axis A coinciding with the axis of displacement Fd of the moving contact 5, in which the so-called Laplace forces, also called compensation forces Fc, generated by the current flowing in the current loop.
  • the conductive parts forming the fixed contacts 4 are rigidly fixed to the housing 30, folded approximately S, arranged in opposition and separated by a free median space.
  • the conductive part forming the movable contact 5 has a width greater than the free space between the two fixed contacts 4 for, in the engaged position, to be pressed under pressure against the fixed contacts 4.
  • These conductive parts each offer a contact zone C located in a plane inclined with respect to the median axis A.
  • FIGS. 3 and 5 illustrate two alternative embodiments of a set of movable contacts, including a first assembly 5 which has five movable contacts 5A-C and corresponds to a 250A rating with a peak value of 50 to 75 kA, and a second set 5 ' which has twelve movable contacts 5A-F and corresponds to a rating of 1600A with a peak value of 120 to 150 kA.
  • the assemblies 5, 5 ' are symmetrical with respect to the central axis A of the breaking device 1 and comprise one or two movable contact (s) central (s) 5A different (s) other 5B movable contacts -F lateral.
  • the central movable contact 5A is centered on the median axis A and in the whole of the figure 4 , the two central movable contacts 5A are symmetrical to the central axis A.
  • Each central movable contact 5A is larger and / or positioned in advance of the others to be the first to dock the fixed contacts 4 in order to establish the current, and the last to leave the fixed contacts 4 to turn off the power. It is he who undergoes the electric arc and therefore plays the role of spark arrester.
  • the lateral movable contacts 5A-C and 5A-F each consist of a conductive part in the form of a metal strip, symmetrical with respect to the median axis A and provided laterally with two contact zones C. They may have identical dimensions or not. They are at least identical two by two symmetrically with respect to the median axis A.
  • the carriage 8 comprises a plurality of separate and parallel housings 80 arranged to receive the movable contacts 5A-C, 5A-F by isolating them from each other.
  • Each movable contact is associated, in its housing 80, with a return member 65, in the form of, for example, a compression spring, arranged to exert a determined pressing force on the movable contact when it is pressed against the fixed contacts. 4 in the engaged position.
  • the housings 80 have different depths so that the lateral movable contacts 5B-C, 5B-F are offset two by two with respect to the prominent central movable contact 5A and form stages E1, E2, etc.
  • the race from one floor to another may be equal or not.
  • the carriage 8 comprises an insulating support 81 in which are provided the housing 80 and a supporting structure 9 encircling the insulating support 81 to form around it a belt of recovery of loads.
  • the insulating support 81 consists of two superimposed parts defining a body 82 in which the movable contacts 5A-C, 5A-F are housed, isolated from each other by the partitions of the housings 80, with a freedom axial movement, and a base 83 at the bottom of which the return members 65 are supported.
  • the housings 80 extend between the base 83 and the body 82 and open out from said body laterally and symmetrically with respect to the central axis A to allow the contact zones C to emerge.
  • the central housing 80 extends to the front insulating support 81 given the boss 50 extending the central movable contact 5A to serve as a spark arrester.
  • the body 82 and the base 83 are held together by said supporting structure 9.
  • any other embodiment of said insulating support 81 to obtain the same functionality is possible.
  • the bearing structure 9 comprises, in the example shown, a flat profile 90, preferably metal, extending on the lateral sides and at the rear of the insulating support 81 like a belt. It further comprises a connecting piece 91, in the form of a preferably metal axis, passing through the insulating support 81 at the front and mechanically connected to the lateral ends of the profile 90 to close the belt.
  • This connecting piece 91 passes through at least one of the housings 80 transversely and preferably the central housing, to bear against at least and preferably the central movable contact 5A, opposite its return member 65.
  • the actuating mechanism 6 of the set 5, 5 'of movable contacts comprises a drive shaft 60 rotatably connected to the handle 20 by an angle gear (not visible) and / or controlled by a second member (not shown) fitted into the square bore 61.
  • a system for converting the rotational movement of the drive shaft 60 into a translation movement makes it possible to move the carriage 8 in the median axis A
  • This motion transformation system comprises a pair of articulated links 62, 63, but any other equivalent means is conceivable.
  • the first link 62 is integral with the drive shaft 60 and rotatably coupled to the second link 63 by a first link B1.
  • the second connecting rod 63 is coupled in rotation with the carriage 8 by a second articulation B2 defined by the connecting piece 91.
  • the carriage 8 is guided in translation relative to the housing 30 by means of rails, ribs or any other equivalent means , in which circulate the projecting ends of the connecting piece 91 forming the articulation B2 or any other complementary shape.
  • the invention achieves the goals set, including the design of the mobile contact carrier trolley to separate the insulation function of the movable contacts, the mechanical strength function of the truck, and the to dedicate to two different but complementary pieces, adapted as well in the choice of materials as in their form to the assigned function.
  • the result obtained is an increase in the technical characteristics of such a truck and its life, contributing favorably to extend the endurance of the electrical breaking device.
  • the present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art while remaining within the scope of protection defined in the appended claims.
  • the carriage of the invention has been described with reference to a multi-contact mobile version, but may be provided for a single contact mobile version. In all cases, it is necessary to provide a trolley per cut-off module or per phase.

Abstract

The carriage (8) has a housing (80) for receiving a moving contact (5) associated with a return mechanism that is in the form of a compression spring, where the carriage is to be coupled with an actuator mechanism pertaining to an electrical cut-off device. An insulating support (81) comprises the housing, and a supporting structure (9) surrounds the insulating support to form a load-absorbing belt around the support. The supporting structure comprises a connecting part (91) intended for coupling the carriage with the actuator mechanism. An independent claim is also included for an electrical cut-off device.

Description

Domaine technique :Technical area :

La présente invention concerne un chariot porte contact mobile pour un appareil de coupure électrique, ledit chariot comportant au moins un logement agencé pour recevoir un contact mobile associé à un organe de rappel, et ledit chariot étant destiné à être couplé à un mécanisme d'actionnement appartenant audit appareil.The present invention relates to a mobile contact trolley for an electrical breaking device, said trolley having at least one housing arranged to receive a movable contact associated with a return member, and said trolley being intended to be coupled to an actuating mechanism belonging to said apparatus.

L'invention concerne également un appareil de coupure électrique pourvu d'un module de commande associé à au moins un module de coupure correspondant à une phase d'un réseau électrique, ce module de coupure comportant au moins un contact mobile associé à au moins une paire de contacts fixes, ledit contact mobile étant porté par un chariot couplé à un mécanisme d'actionnement commandé par ledit module de commande pour être déplacé entre au moins une position déclenchée dans laquelle le contact mobile est éloigné des contacts fixes et le circuit électrique est ouvert, et une position enclenchée dans laquelle le contact mobile est en appui contre les contacts fixes et le circuit électrique est fermé.The invention also relates to an electrical switching device provided with a control module associated with at least one cut-off module corresponding to a phase of an electrical network, this cut-off module including at least one moving contact associated with at least one pair of fixed contacts, said movable contact being carried by a carriage coupled to an actuating mechanism controlled by said control module to be moved between at least one triggered position in which the movable contact is moved away from the fixed contacts and the electrical circuit is open, and an engaged position in which the movable contact bears against the fixed contacts and the electrical circuit is closed.

Technique antérieure :Prior art:

Pour déplacer les contacts mobiles de la position ouverte ou déclenchée à la position fermée ou enclenchée dans des appareils de coupure électrique tels que des interrupteurs, des interrupteurs fusibles, des commutateurs, des commutateurs-inverseurs, des disjoncteurs, ou similaires, les contacts mobiles sont disposés sur ou portés par un chariot. Ce chariot est généralement constitué d'une seule pièce moulée ou injectée, en matière synthétique ou composite, et sert à manoeuvrer en même temps les contacts mobiles des différents modules de coupure équipant un même appareil de coupure en fonction du nombre de phases du réseau électrique. L'ensemble des contraintes subies par le chariot, telles que les échauffements, efforts mécaniques permanents, efforts mécaniques occasionnels de forte intensité, etc. entraînent inévitablement des déformations voire des casses du chariot. Manoeuvrer plusieurs phases à partir d'un même chariot mobile pose également des problèmes d'isolation entre les phases. Ces différentes contraintes limitent les performances techniques d'un tel chariot.To move the movable contacts from the open or triggered position to the closed or latched position in electrical switching devices such as switches, fuse switches, switches, inverter switches, circuit breakers, or the like, the movable contacts are arranged on or carried by a carriage. This carriage is generally made of a single molded or injected part, made of synthetic or composite material, and serves to simultaneously operate the movable contacts of the different breaking modules fitted to the same device. cut according to the number of phases of the electrical network. The set of constraints experienced by the truck, such as heating, permanent mechanical forces, occasional mechanical forces of high intensity, etc. inevitably lead to deformation or even breakage of the truck. Maneuvering several phases from the same mobile carriage also poses insulation problems between the phases. These different constraints limit the technical performance of such a truck.

Exposé de l'invention :Presentation of the invention

La présente invention vise à pallier ces inconvénients en proposant une nouvelle conception de chariot porte contact mobile pouvant équiper tout type d'appareil de coupure électrique dans lequel les contacts mobiles se ferment par pression sur les contacts fixes, ce chariot étant agencé pour supporter, sans déformation, à la fois des contraintes mécaniques permanentes sous des conditions de température élevée, par exemple de l'ordre de 100°C, et des efforts mécaniques exceptionnels, notamment en cas de soudure des zones de contact, dans le but d'augmenter l'endurance électrodynamique et mécanique de l'appareil de coupure électrique équipé d'un tel chariot.The present invention aims at overcoming these disadvantages by proposing a new design of a mobile contact trolley that can equip any type of electrical breaking device in which the movable contacts are closed by pressure on the fixed contacts, this trolley being arranged to support, without deformation, both permanent mechanical stresses under conditions of high temperature, for example of the order of 100 ° C, and exceptional mechanical forces, particularly in the case of welding of the contact areas, in order to increase the electrodynamic and mechanical endurance of the electric switchgear equipped with such a truck.

Dans ce but, l'invention concerne un chariot du genre indiqué en préambule, caractérisé en ce qu'il comporte au moins un support isolant pourvu dudit logement et au moins une structure portante encerclant ledit support isolant pour former autour de lui une ceinture de reprise de charges.For this purpose, the invention relates to a carriage of the type indicated in the preamble, characterized in that it comprises at least one insulating support provided with said housing and at least one supporting structure encircling said insulating support to form around it a recovery belt. loads.

La structure portante comporte, avantageusement, au moins une pièce de liaison destinée à coupler ledit chariot au mécanisme d'actionnement appartenant audit appareil, cette pièce de liaison étant de préférence positionnée dans une partie avant dudit support isolant et traversant ledit logement transversalement de manière à être en appui sur le contact mobile à l'opposé de son organe de rappel, lorsque ledit contact mobile est monté dans ledit chariot.The supporting structure advantageously comprises at least one connecting piece intended to couple said carriage to the actuating mechanism belonging to said apparatus, this connecting piece preferably being positioned in a front part of said insulating support and traversing said housing transversely so as to to be resting on the movable contact opposite its return member, when said movable contact is mounted in said carriage.

Dans une forme de réalisation préférée, la structure portante comporte en outre un profilé métallique s'étendant sur les côtés latéraux et à l'arrière dudit support isolant et la pièce de liaison comporte au moins un axe métallique traversant ledit support isolant et les extrémités latérales dudit profilé métallique.In a preferred embodiment, the supporting structure further comprises a metal profile extending on the lateral sides and at the rear of said insulating support and the connecting piece comprises at least one metal axis passing through said insulating support and the lateral ends. said metal section.

Le support isolant peut comporter au moins deux pièces superposées, dont un corps dans lequel est logé ledit contact mobile et un socle dans lequel est logé au moins en partie ledit organe de rappel, ledit logement s'étendant dudit corps à ladite semelle.The insulating support may comprise at least two superimposed parts, including a body in which is housed said movable contact and a base in which is housed at least in part said return member, said housing extending from said body to said sole.

Dans la forme de réalisation préférée, le chariot comporte plusieurs logements disposés en parallèle pour recevoir plusieurs contacts mobiles, isolés les uns des autres, ces logements pouvant avoir des profondeurs différentes pour décaler dans l'espace lesdits contacts mobiles.In the preferred embodiment, the carriage comprises a plurality of housings arranged in parallel to receive a plurality of movable contacts, isolated from each other, these housings being able to have different depths for shifting said mobile contacts in space.

Si le chariot est symétrique par rapport à un axe médian, alors les logements sont décalés deux à deux symétriquement par rapport audit axe médian pour former des étages.If the carriage is symmetrical with respect to a median axis, then the housings are shifted two by two symmetrically with respect to said median axis to form stages.

Dans ce but également, l'invention concerne un appareil de coupure du genre indiqué en préambule, caractérisé en ce que ledit chariot comporte au moins un support isolant comportant ledit logement et au moins une structure portante encerclant ledit support isolant pour former autour de lui une ceinture de reprise de charges, tel que défini ci-dessus.For this purpose also, the invention relates to a cutting device of the kind indicated in the preamble, characterized in that said carriage comprises at least one insulating support comprising said housing and at least one supporting structure encircling said insulating support to form around it a load taking belt, as defined above.

Description sommaire des dessins :Brief description of the drawings:

La présente invention et ses avantages apparaîtront mieux dans la description suivante d'un mode de réalisation donné à titre d'exemple non limitatif, en référence aux dessins annexés, dans lesquels:

  • la figure 1 est une vue en perspective d'un exemple d'appareil de coupure électrique selon l'invention comportant un module de commande associé à trois modules de coupure, dans lequel le dernier module de coupure est ouvert,
  • la figure 2 est une vue en coupe d'un module de coupure de l'appareil de la figure 1 en position enclenchée,
  • la figure 3 est une vue en perspective d'un chariot porte contact mobile entrant dans la conception de l'appareil de la figure 1,
  • les figures 4A et 4B sont des vues en coupe du chariot de la figure 3 respectivement selon les axes de coupe AA et BB, et
  • la figure 5 est une variante de réalisation du chariot de la figure 3 correspondant à un calibre de courant plus élevé.
The present invention and its advantages will appear better in the following description of an embodiment given by way of non-limiting example, with reference to the appended drawings, in which:
  • the figure 1 is a perspective view of an example of electrical switching device according to the invention comprising a control module associated with three breaking modules, in which the last breaking module is open,
  • the figure 2 is a sectional view of a cutoff module of the device of the figure 1 in the engaged position,
  • the figure 3 is a perspective view of a mobile contact trolley entering the device design of the figure 1 ,
  • the Figures 4A and 4B are sectional views of the trolley of the figure 3 respectively along the AA and BB cutting axes, and
  • the figure 5 is an alternative embodiment of the trolley of the figure 3 corresponding to a higher current rating.

Illustrations de invention et différentes manières de la réaliser :Illustrations of invention and different ways to make it:

En référence à la figure 1, l'appareil de coupure électrique 1 visé dans l'invention est habituellement constitué d'un module de commande 2 associé à un ou plusieurs modules de coupure 3 correspondant chacun à une phase d'un réseau électrique. Dans l'exemple illustré, l'appareil 1 est un appareil triphasé et comporte trois modules de coupure 3. Chaque module de coupure 3 comporte de manière connue un boîtier isolant 30 à l'intérieur duquel sont logés au moins deux contacts fixes 4, formant une paire, prolongés à l'extérieur dudit boîtier par des bornes de raccordement 40, et au moins un contact mobile 5 porté par un chariot 8 couplé à un mécanisme d'actionnement 6 commandé par le module de commande 2 pour être déplacé entre au moins une position déclenchée dans laquelle il est éloigné des contacts fixes et le circuit électrique est ouvert, et une position enclenchée dans laquelle il est en appui contre les contacts fixes et le circuit électrique est fermé. Le module de commande 2 peut être actionné manuellement par une poignée 20 et/ou automatiquement par une motorisation (non représentée). L'appareil de coupure 1 comporte dans l'exemple représenté des chambres de fractionnement 7 disposées au dessus des contacts fixes 4 et du contact mobile 5 pour capturer, étirer, refroidir puis éteindre l'arc électrique généré par le courant à chaque changement d'état dudit appareil.With reference to the figure 1 , the electrical switching device 1 referred to in the invention usually consists of a control module 2 associated with one or more cutoff modules 3 each corresponding to a phase of an electrical network. In the example illustrated, the device 1 is a three-phase device and comprises three cut-off modules 3. Each cut-off module 3 comprises, in a known manner, an insulating housing 30 inside which at least two fixed contacts 4, forming a pair, extended outside said housing by connection terminals 40, and at least one movable contact 5 carried by a carriage 8 coupled to an actuating mechanism 6 controlled by the control module 2 to be moved between at least a triggered position in which it is away from the fixed contacts and the electrical circuit is open, and an engaged position in which it bears against the fixed contacts and the electrical circuit is closed. The control module 2 can be operated manually by a handle 20 and / or automatically by a motor (not shown). The cut-off device 1 comprises in the example shown fractionating chambers 7 arranged above the fixed contacts 4 and the movable contact 5 to capture, stretch, cool and then extinguish the electric arc generated by the current at each change of state of said apparatus.

Cet appareil de coupure 1 doit pouvoir établir et couper des courants I dits normaux ou de défaut d'une valeur de 0 à 10In, In étant la valeur du courant nominal qui peut traverser l'appareil en permanence. Cet appareil doit aussi pouvoir établir, et le cas échéant couper, des courants de court-circuit dont la valeur peut atteindre 100 à 300 fois le courant nominal In, sans déformation ni rupture du chariot 8.This switching device 1 must be able to set and cut off so-called normal or fault currents from 0 to 10In, where In is the value of the nominal current that can pass through the device at all times. This device must also be able to establish, and if necessary cut, short-circuit currents whose value can reach 100 to 300 times the rated current In, without deformation or breaking of the carriage 8.

La solution de l'invention est décrite en référence à un appareil électrique 1 dont les modules de coupure ont une architecture interne spécifique, objet d'une autre demande de brevet déposée simultanément, mais peut bien entendu s'appliquer à toute autre architecture interne de l'état de l'art. Dans l'exemple représenté aux figures 1 et 2, les contacts fixes 4 et le contact mobile 5 sont disposés pour former une boucle de courant en forme d'oméga, symétrique par rapport à un axe médian A confondu avec l'axe de déplacement Fd du contact mobile 5, dans lequel s'exercent les forces dites de Laplace, appelées aussi efforts de compensation Fc, générées par le courant circulant dans la boucle de courant. Les pièces conductrices formant les contacts fixes 4 sont rigidement fixées au boîtier 30, pliées approximativement en S, disposées en opposition et séparées par un espace médian libre. La pièce conductrice formant le contact mobile 5 a une largeur supérieure à l'espace libre entre les deux contacts fixes 4 pour, en position enclenchée, être plaquée sous pression contre les contacts fixes 4. Ces pièces conductrices offrent chacune une zone de contact C située dans un plan incliné par rapport à l'axe médian A.The solution of the invention is described with reference to an electrical apparatus 1 whose switching modules have a specific internal architecture, object of another patent application filed simultaneously, but can of course apply to any other internal architecture of state of the art. In the example shown in Figures 1 and 2 the fixed contacts 4 and the movable contact 5 are arranged to form an omega-shaped current loop, symmetrical with respect to a median axis A coinciding with the axis of displacement Fd of the moving contact 5, in which the so-called Laplace forces, also called compensation forces Fc, generated by the current flowing in the current loop. The conductive parts forming the fixed contacts 4 are rigidly fixed to the housing 30, folded approximately S, arranged in opposition and separated by a free median space. The conductive part forming the movable contact 5 has a width greater than the free space between the two fixed contacts 4 for, in the engaged position, to be pressed under pressure against the fixed contacts 4. These conductive parts each offer a contact zone C located in a plane inclined with respect to the median axis A.

La solution de l'invention est également décrite en référence à un appareil électrique dont le contact mobile est en fait constitué d'un ensemble 5, 5' de plusieurs contacts mobiles 5A-C, 5A-F, parallèles et décalés dans l'espace permettant d'échelonner dans le temps l'accostage des contacts mobiles sur les contacts fixes 4, objet encore d'une autre demande de brevet déposée simultanément, mais peut bien entendu s'appliquer aux appareils de l'état de l'art comportant un ou plusieurs contacts mobiles par paire de contacts fixes. Dans l'exemple représenté aux figures 1 et 2, le nombre de contacts mobiles par ensemble dépend du calibre du courant nominal In. Les figures 3 et 5 illustrent deux variantes de réalisation d'un ensemble de contacts mobiles, dont un premier ensemble 5 qui comporte cinq contacts mobiles 5A-C et correspond à un calibre de 250A avec une valeur de crête de 50 à 75 kA, et un second ensemble 5' qui comporte douze contacts mobiles 5A-F et correspond à un calibre de 1600A avec une valeur de crête de 120 à 150 kA. Les ensembles 5, 5' sont symétriques par rapport à l'axe médian A de l'appareil de coupure 1 et comportent un ou deux contact(s) mobile(s) central(aux) 5A différent(s) des autres contacts mobiles 5B-F latéraux. Dans l'ensemble de la figure 3, le contact mobile central 5A est centré sur l'axe médian A et dans l'ensemble de la figure 4, les deux contacts mobiles centraux 5A sont symétriques à l'axe médian A. Chaque contact mobile central 5A est plus grand et/ou positionné en avance sur les autres pour être le premier à accoster les contacts fixes 4 afin d'établir le courant, et le dernier à quitter les contacts fixes 4 afin de couper le courant. C'est lui qui subit l'arc électrique et joue par conséquent le rôle de pare-étincelles.The solution of the invention is also described with reference to an electrical apparatus whose moving contact is in fact constituted by an assembly 5, 5 'of a plurality of moving contacts 5A-C, 5A-F, parallel and offset in space allowing to stagger over time the docking of the movable contacts on the fixed contacts 4, still subject to another patent application filed simultaneously, but can of course apply to the state of the art apparatus comprising a or multiple moving contacts per pair of fixed contacts. In the example shown in Figures 1 and 2 , the number of moving contacts per set depends on the nominal current rating In. figures 3 and 5 illustrate two alternative embodiments of a set of movable contacts, including a first assembly 5 which has five movable contacts 5A-C and corresponds to a 250A rating with a peak value of 50 to 75 kA, and a second set 5 ' which has twelve movable contacts 5A-F and corresponds to a rating of 1600A with a peak value of 120 to 150 kA. The assemblies 5, 5 'are symmetrical with respect to the central axis A of the breaking device 1 and comprise one or two movable contact (s) central (s) 5A different (s) other 5B movable contacts -F lateral. In the whole of the figure 3 , the central movable contact 5A is centered on the median axis A and in the whole of the figure 4 , the two central movable contacts 5A are symmetrical to the central axis A. Each central movable contact 5A is larger and / or positioned in advance of the others to be the first to dock the fixed contacts 4 in order to establish the current, and the last to leave the fixed contacts 4 to turn off the power. It is he who undergoes the electric arc and therefore plays the role of spark arrester.

Les contacts mobiles latéraux 5A-C et 5A-F sont constitués chacun d'une pièce conductrice sous la forme d'une lame métallique, symétrique par rapport à l'axe médian A et pourvue latéralement de deux zones de contact C. Ils peuvent avoir des dimensions identiques ou non. Ils sont au moins identiques deux à deux symétriquement par rapport à l'axe médian A.The lateral movable contacts 5A-C and 5A-F each consist of a conductive part in the form of a metal strip, symmetrical with respect to the median axis A and provided laterally with two contact zones C. They may have identical dimensions or not. They are at least identical two by two symmetrically with respect to the median axis A.

Les contacts mobiles 5A-C, 5A-F d'un même ensemble 5, 5' sont portés par un chariot 8 objet de la présente invention. Dans l'exemple illustré, le chariot 8 comporte plusieurs logements 80 séparés et parallèles, agencés pour recevoir les contacts mobiles 5A-C, 5A-F en les isolant les uns des autres. Chaque contact mobile est associé, dans son logement 80, à un organe de rappel 65, sous la forme par exemple d'un ressort de compression, agencé pour exercer un effort presseur déterminé sur le contact mobile lorsqu'il est plaqué contre les contacts fixes 4 en position enclenchée. Les logements 80 ont des profondeurs différentes pour que les contacts mobiles latéraux 5B-C, 5B-F soient décalés deux à deux par rapport au contact mobile central 5A proéminent et former des étages E1, E2, etc. La course d'un étage à l'autre peut être égale ou non.The movable contacts 5A-C, 5A-F of the same assembly 5, 5 'are carried by a carriage 8 object of the present invention. In the example shown, the carriage 8 comprises a plurality of separate and parallel housings 80 arranged to receive the movable contacts 5A-C, 5A-F by isolating them from each other. Each movable contact is associated, in its housing 80, with a return member 65, in the form of, for example, a compression spring, arranged to exert a determined pressing force on the movable contact when it is pressed against the fixed contacts. 4 in the engaged position. The housings 80 have different depths so that the lateral movable contacts 5B-C, 5B-F are offset two by two with respect to the prominent central movable contact 5A and form stages E1, E2, etc. The race from one floor to another may be equal or not.

Le chariot 8 comporte un support isolant 81 dans lequel sont prévus les logements 80 ainsi qu'une structure portante 9 encerclant le support isolant 81 pour former autour de lui une ceinture de reprise de charges. Dans l'exemple représenté, le support isolant 81 est constitué de deux pièces superposées définissant un corps 82 dans lequel les contacts mobiles 5A-C, 5A-F sont logés, isolés les uns des autres par les cloisons des logements 80, avec une liberté de mouvement axial, et un socle 83 au fond duquel les organes de rappel 65 prennent appui. Les logements 80 s'étendent entre le socle 83 et le corps 82 et débouchent dudit corps latéralement et symétriquement par rapport à l'axe médian A pour laisser émerger les zones de contact C. Le logement 80 central se prolonge jusqu'à l'avant du support isolant 81 compte tenu du bossage 50 prolongeant le contact mobile central 5A pour servir de pare-étincelles. Le corps 82 et le socle 83 sont maintenus assemblés par ladite structure portante 9. Bien entendu, toute autre forme de réalisation dudit support isolant 81 permettant d'obtenir les mêmes fonctionnalités est envisageable.The carriage 8 comprises an insulating support 81 in which are provided the housing 80 and a supporting structure 9 encircling the insulating support 81 to form around it a belt of recovery of loads. In the example shown, the insulating support 81 consists of two superimposed parts defining a body 82 in which the movable contacts 5A-C, 5A-F are housed, isolated from each other by the partitions of the housings 80, with a freedom axial movement, and a base 83 at the bottom of which the return members 65 are supported. The housings 80 extend between the base 83 and the body 82 and open out from said body laterally and symmetrically with respect to the central axis A to allow the contact zones C to emerge. The central housing 80 extends to the front insulating support 81 given the boss 50 extending the central movable contact 5A to serve as a spark arrester. The body 82 and the base 83 are held together by said supporting structure 9. Of course, any other embodiment of said insulating support 81 to obtain the same functionality is possible.

La structure portante 9 comporte, dans l'exemple représenté, un profilé 90 plat, de préférence métallique, s'étendant sur les côtés latéraux et à l'arrière du support isolant 81 à la manière d'une ceinture. Elle comporte en outre une pièce de liaison 91, sous la forme d'un axe de préférence métallique, traversant le support isolant 81 à l'avant et liée mécaniquement aux extrémités latérales du profilé 90 pour fermer la ceinture. Cette pièce de liaison 91 traverse au moins un des logements 80 transversalement et de préférence le logement central, pour venir en appui contre au moins et de préférence le contact mobile central 5A, à l'opposé de son organe de rappel 65. La pièce de liaison 91 forme une articulation B2 permettant le couplage du chariot 8 au mécanisme d'actionnement 6 comme expliqué plus loin et transmet ainsi directement les efforts d'entraînement dudit mécanisme, notamment au déclenchement pour ouvrir le circuit électrique, au contact mobile central 5A qui est le dernier à quitter le contact fixe 4. Bien entendu, toute autre forme de réalisation de ladite structure portante 9 permettant d'obtenir les mêmes fonctionnalités est envisageable.The bearing structure 9 comprises, in the example shown, a flat profile 90, preferably metal, extending on the lateral sides and at the rear of the insulating support 81 like a belt. It further comprises a connecting piece 91, in the form of a preferably metal axis, passing through the insulating support 81 at the front and mechanically connected to the lateral ends of the profile 90 to close the belt. This connecting piece 91 passes through at least one of the housings 80 transversely and preferably the central housing, to bear against at least and preferably the central movable contact 5A, opposite its return member 65. link 91 forms a hinge B2 allowing the coupling of the carriage 8 to the actuating mechanism 6 as explained below and thus directly transmits the drive forces of said mechanism, in particular at the trigger to open the electrical circuit, the central movable contact 5A which is the last to leave the fixed contact 4. Of course, any other embodiment of said supporting structure 9 to obtain the same functionality is possible.

Dans l'exemple représenté, le mécanisme d'actionnement 6 de l'ensemble 5, 5' de contacts mobiles comporte un axe d'entraînement 60 lié en rotation avec la poignée 20 par un renvoi d'angle (non visible) et/ou commandé par un second organe (non représenté) emboîté dans l'alésage carré 61. Un système de transformation du mouvement de rotation de l'axe d'entraînement 60 en un mouvement de translation permet de déplacer le chariot 8 dans l'axe médian A. Ce système de transformation de mouvement comporte une paire de bielles 62, 63 articulées, mais tout autre moyen équivalent est envisageable. La première bielle 62 est solidaire de l'axe d'entraînement 60 et couplée en rotation à la seconde bielle 63 par une première articulation B1. La seconde bielle 63 est couplée en rotation avec le chariot 8 par une seconde articulation B2 définie par la pièce de liaison 91. Le chariot 8 est guidé en translation par rapport au boîtier 30 au moyen de rails, de nervures ou de tout autre moyen équivalent, dans lesquelles circulent les extrémités saillantes de la pièce de liaison 91 formant l'articulation B2 ou toute autre forme complémentaire.In the example shown, the actuating mechanism 6 of the set 5, 5 'of movable contacts comprises a drive shaft 60 rotatably connected to the handle 20 by an angle gear (not visible) and / or controlled by a second member (not shown) fitted into the square bore 61. A system for converting the rotational movement of the drive shaft 60 into a translation movement makes it possible to move the carriage 8 in the median axis A This motion transformation system comprises a pair of articulated links 62, 63, but any other equivalent means is conceivable. The first link 62 is integral with the drive shaft 60 and rotatably coupled to the second link 63 by a first link B1. The second connecting rod 63 is coupled in rotation with the carriage 8 by a second articulation B2 defined by the connecting piece 91. The carriage 8 is guided in translation relative to the housing 30 by means of rails, ribs or any other equivalent means , in which circulate the projecting ends of the connecting piece 91 forming the articulation B2 or any other complementary shape.

Il ressort clairement de cette description que l'invention permet d'atteindre les buts fixés, notamment la conception du chariot porte contact mobile permet de dissocier la fonction d'isolation des contacts mobiles, de la fonction de résistance mécanique du chariot, et de les dédier à deux pièces différentes mais complémentaires, adaptées aussi bien dans le choix des matériaux que dans leur forme à la fonction attribuée. Le résultat obtenu est une augmentation des caractéristiques techniques d'un tel chariot et de sa durée de vie, contribuant favorablement à prolonger l'endurance de l'appareil de coupure électrique.It is clear from this description that the invention achieves the goals set, including the design of the mobile contact carrier trolley to separate the insulation function of the movable contacts, the mechanical strength function of the truck, and the to dedicate to two different but complementary pieces, adapted as well in the choice of materials as in their form to the assigned function. The result obtained is an increase in the technical characteristics of such a truck and its life, contributing favorably to extend the endurance of the electrical breaking device.

La présente invention n'est pas limitée aux exemples de réalisation décrits mais s'étend à toute modification et variante évidentes pour un homme du métier tout en restant dans l'étendue de la protection définie dans les revendications annexées. Le chariot de l'invention a été décrit en référence à une version multi-contacts mobiles, mais peut être prévu pour une version mono contact mobile. Dans tous les cas, il est nécessaire de prévoir un chariot par module de coupure ou par phase.The present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art while remaining within the scope of protection defined in the appended claims. The carriage of the invention has been described with reference to a multi-contact mobile version, but may be provided for a single contact mobile version. In all cases, it is necessary to provide a trolley per cut-off module or per phase.

Claims (17)

Chariot (8) porte contact mobile pour un appareil de coupure électrique (1), comportant au moins un logement (80) agencé pour recevoir un contact mobile (5) associé à un organe de rappel (65), ledit chariot étant destiné à être couplé à un mécanisme d'actionnement (6) appartenant audit appareil, caractérisé en ce que ledit chariot (8) comporte au moins un support isolant (81) comportant ledit logement (80) et au moins une structure portante (9) encerclant ledit support isolant (81) pour former autour de lui une ceinture de reprise de charges.Carriage (8) movable contact holder for an electrical breaking device (1), comprising at least one housing (80) arranged to receive a movable contact (5) associated with a return member (65), said carriage being intended to be coupled to an actuating mechanism (6) belonging to said apparatus, characterized in that said carriage (8) comprises at least one insulating support (81) comprising said housing (80) and at least one supporting structure (9) encircling said support insulation (81) to form around it a belt of recovery of loads. Chariot selon la revendication 1, caractérisé en ce que ladite structure portante (9) comporte au moins une pièce de liaison (91) destinée à coupler ledit chariot (8) au mécanisme d'actionnement (6) appartenant audit appareil.Trolley according to claim 1, characterized in that said supporting structure (9) comprises at least one connecting piece (91) for coupling said carriage (8) to the actuating mechanism (6) belonging to said apparatus. Chariot selon la revendication 2, caractérisé en ce que ladite pièce de liaison (91) est positionnée dans une partie avant dudit support isolant (81) et traverse ledit logement (80) transversalement de manière à être en appui sur le contact mobile (5) à l'opposé de son organe de rappel (65), lorsque ledit contact mobile est monté dans ledit chariot.Trolley according to claim 2, characterized in that said connecting piece (91) is positioned in a front portion of said insulating support (81) and passes through said housing (80) transversely so as to bear on the movable contact (5) opposite its return member (65), when said movable contact is mounted in said carriage. Chariot selon la revendication 3, caractérisé en ce que ladite structure portante (9) comporte en outre un profilé métallique (90) s'étendant sur les côtés latéraux et à l'arrière dudit support isolant (81) et en ce que ladite pièce de liaison (91) comporte au moins un axe métallique traversant ledit support isolant (81) et les extrémités latérales dudit profilé métallique (90).Trolley according to claim 3, characterized in that said supporting structure (9) further comprises a metal profile (90) extending on the lateral sides and at the rear of said insulating support (81) and in that said piece of link (91) has at least one metal axis passing through said insulating support (81) and the lateral ends of said metal section (90). Chariot selon la revendication 1, caractérisé en ce que ledit support isolant (81) comporte au moins deux pièces superposées, dont un corps (82) dans lequel est logé ledit contact mobile (5) et un socle (83) dans lequel est logé au moins en partie ledit organe de rappel (65), ledit logement (80) s'étendant dudit corps - à ladite semelle.Trolley according to claim 1, characterized in that said insulating support (81) comprises at least two superimposed parts, including a body (82) in which is housed said movable contact (5) and a base (83) in which is housed at least in part said return member (65), said housing (80) extending from said body - said sole. Chariot selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte plusieurs logements (80) disposés en parallèle pour recevoir plusieurs contacts mobiles (5A-C, 5A-F), isolés les uns des autres.Trolley according to any one of the preceding claims, characterized in that it comprises several housings (80) arranged in parallel to receive a plurality of movable contacts (5A-C, 5A-F), isolated from each other. Chariot selon la revendication 6, caractérisé en ce que lesdits logements (80) ont des profondeurs différentes pour décaler dans l'espace lesdits contacts mobiles (5A-C, 5A-F).Trolley according to claim 6, characterized in that said housings (80) have different depths to shift in space said movable contacts (5A-C, 5A-F). Chariot selon la revendication 7, caractérisé en ce qu'il est symétrique par rapport à un axe médian (A) et que lesdits logements (80) sont décalés deux à deux symétriquement par rapport audit axe médian pour former des étages.Trolley according to claim 7, characterized in that it is symmetrical with respect to a median axis (A) and that said housings (80) are offset two by two symmetrically with respect to said median axis to form stages. Appareil de coupure électrique (1) pourvu d'un module de commande (2) associé à au moins un module de coupure (3) correspondant à une phase d'un réseau électrique, ledit module de coupure comportant au moins un contact mobile (5) associé à au moins une paire de contacts fixes (4), ledit contact mobile (5) étant porté par un chariot (8) couplé à un mécanisme d'actionnement (6) commandé par ledit module de commande (2) pour être déplacé entre au moins une position déclenchée dans laquelle le contact mobile est éloigné des contacts fixes et le circuit électrique est ouvert, et une position enclenchée dans laquelle le contact mobile est en appui contre les contacts fixes et le circuit électrique est fermé, ledit chariot comportant au moins un logement pour recevoir ledit contact mobile associé à un organe de rappel, caractérisé en ce que ledit chariot (8) comporte au moins un support isolant (81) comportant ledit logement (80) et au moins une structure portante (9) encerclant ledit support isolant (81) pour former autour de lui une ceinture de reprise de charges.Electrical breaking device (1) provided with a control module (2) associated with at least one breaking module (3) corresponding to a phase of an electrical network, said breaking module comprising at least one moving contact (5). ) associated with at least one pair of fixed contacts (4), said movable contact (5) being carried by a carriage (8) coupled to an actuating mechanism (6) controlled by said control module (2) to be moved between at least one triggered position in which the moving contact is moved away from the fixed contacts and the electrical circuit is open, and an engaged position in which the movable contact bears against the fixed contacts and the electrical circuit is closed, said carriage comprising at least one housing for receiving said moving contact associated with a return member, characterized in that said carriage (8) comprises at least one insulating support (81) comprising said housing (80) and at least one supporting structure (9) encircling said insulating support (81) to form a charge recovery belt around it. Appareil selon la revendication 9, caractérisé en ce que ladite structure portante (9) comporte au moins une pièce de liaison (91) agencée pour coupler ledit chariot (8) audit mécanisme d'actionnement (6).Apparatus according to claim 9, characterized in that said supporting structure (9) comprises at least one connecting piece (91) arranged to couple said carriage (8) to said actuating mechanism (6). Appareil selon la revendication 10, caractérisé en ce que ladite pièce de liaison (91) est positionnée dans une partie avant dudit support isolant (81) et traverse ledit logement (80) transversalement de manière à être en appui sur ledit contact mobile (5) à l'opposé dudit organe de rappel (65).Apparatus according to claim 10, characterized in that said connecting piece (91) is positioned in a front portion of said insulating support (81) and passes through said housing (80) transversely so as to bear on said movable contact (5) opposite said return member (65). Appareil selon la revendication 11, caractérisé en ce que ladite structure portante (9) comporte au moins un profilé métallique (90) s'étend sur les côtés latéraux et à l'arrière dudit support isolant (81) et en ce que ladite pièce de liaison (91) comporte au moins un axe métallique traversant ledit support isolant (81) et les extrémités latérales dudit profilé métallique (90).Apparatus according to claim 11, characterized in that said supporting structure (9) comprises at least one metal profile (90) extending on the lateral sides and at the rear of said insulating support (81) and in that said support member link (91) has at least one metal axis passing through said insulating support (81) and the lateral ends of said metal section (90). Appareil selon la revendication 9, caractérisé en ce que ledit support isolant (81) comporte au moins deux pièces superposées, dont un corps (82) dans lequel est logé ledit contact mobile (5) et un socle (83) dans lequel est logé au moins en partie ledit organe de rappel (65), ledit logement (80) s'étendant dudit corps et à ladite semelle.Apparatus according to claim 9, characterized in that said insulating support (81) comprises at least two superimposed parts, including a body (82) in which is housed said movable contact (5) and a base (83) in which is housed at at least partly said return member (65), said housing (80) extending from said body and said sole. Appareil selon l'une quelconque des revendications 9 à 13, caractérisé en ce qu'il comporte au moins un ensemble (5, 5') de plusieurs contacts mobiles (5A-C; 5A-F) associé à ladite paire de contacts fixes (4), et en ce que ledit chariot (8) comporte plusieurs logements (80) parallèles pour recevoir lesdits contacts mobiles isolés les uns par rapport aux autres.Apparatus according to any one of claims 9 to 13, characterized in that it comprises at least one set (5, 5 ') of a plurality of movable contacts (5A-C; 5A-F) associated with said pair of fixed contacts ( 4), and in that said carriage (8) has a plurality of parallel housings (80) for receiving said movable contacts isolated from one another. Appareil selon la revendication 14, caractérisé en ce que lesdits logements (80) ont des profondeurs différentes pour décaler dans l'espace lesdits contacts mobiles les uns par rapport aux autres de manière à échelonner dans le temps l'accostage desdits contacts mobiles sur lesdits contacts fixes lors de la fermeture du circuit électrique.An apparatus according to claim 14, characterized in that said housings (80) have different depths for spatially shifting said movable contacts the with respect to each other so as to stagger in time the docking of said movable contacts on said fixed contacts during the closure of the electrical circuit. Appareil selon la revendication 15, caractérisé en ce que ledit ensemble (5, 5') comporte au moins un contact mobile central (5A) en avance sur les autres contacts mobiles (5B-C ; 5B-F) disposés latéralement autour dudit contact mobile central (5A) pour qu'il soit le premier à établir le courant lors de la fermeture du circuit électrique et le dernier à couper le courant à l'ouverture dudit circuit, et en ce que ladite pièce de liaison (91) dudit chariot (8) est en contact direct sur ledit contact mobile central (5A) pour lui transmettre directement les efforts d'entraînement du mécanisme d'actionnement (6) à l'ouverture dudit circuit électrique.Apparatus according to claim 15, characterized in that said assembly (5, 5 ') comprises at least one central movable contact (5A) in advance of the other movable contacts (5B-C; 5B-F) arranged laterally around said moving contact central (5A) so that it is the first to establish the current when closing the electrical circuit and the last to cut the current at the opening of said circuit, and in that said connecting piece (91) of said carriage ( 8) is in direct contact on said central movable contact (5A) to directly transmit the driving forces of the actuating mechanism (6) to the opening of said electrical circuit. Appareil selon l'une quelconque des revendications 14 à 16, caractérisé en ce que ledit chariot (8) est symétrique par rapport à un axe médian (A) et en ce que lesdits logements (80) sont décalés deux à deux symétriquement par rapport audit axe médian pour former des étages.Apparatus according to any one of claims 14 to 16, characterized in that said carriage (8) is symmetrical with respect to a median axis (A) and in that said housings (80) are offset two by two symmetrically with respect to said median axis to form floors.
EP20120360062 2011-09-01 2012-08-09 Movable contact-holder carriage and electrical switchgear provided with such a carriage Active EP2565893B1 (en)

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FR1157714A FR2979743B1 (en) 2011-09-01 2011-09-01 MOBILE CONTACTOR CARRIER AND ELECTRICAL CLUTCH EQUIPPTION WITH SUCH TROLLEY

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FR2979743A1 (en) 2013-03-08
FR2979743B1 (en) 2013-08-30
EP2565893B1 (en) 2015-04-08
US8993908B2 (en) 2015-03-31
US20130056337A1 (en) 2013-03-07

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