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WO2002049053A1 - Electronic switching apparatus for electrical installation - Google Patents

Electronic switching apparatus for electrical installation Download PDF

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Publication number
WO2002049053A1
WO2002049053A1 PCT/FR2001/003999 FR0103999W WO0249053A1 WO 2002049053 A1 WO2002049053 A1 WO 2002049053A1 FR 0103999 W FR0103999 W FR 0103999W WO 0249053 A1 WO0249053 A1 WO 0249053A1
Authority
WO
WIPO (PCT)
Prior art keywords
contacts
movable
slide
cam
cutting device
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.)
Ceased
Application number
PCT/FR2001/003999
Other languages
French (fr)
Inventor
Roger Dumont
Mickäel VERNOIT
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
Priority to AU2002225079A priority Critical patent/AU2002225079A1/en
Priority to GB0310408A priority patent/GB2384626B/en
Publication of WO2002049053A1 publication Critical patent/WO2002049053A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01H1/2025—Bridging contacts comprising two-parallel bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • 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
    • H01H1/2025—Bridging contacts comprising two-parallel bridges
    • H01H2001/2033—Bridging contacts comprising two-parallel bridges with a contact bridge on both opposite sides of a fixed contact pair, each contact bridge being moved to close or open the circuit
    • 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
    • H01H9/10—Adaptation for built-in fuses
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts

Definitions

  • the present invention relates to an electrical switching device for electrical installation comprising at least two electrical conductors, this device comprising at least one switching module associated with each conductor and a common control module, each switching module comprising an electrically insulated housing, at at least one input terminal and one output terminal, each terminal being connected to at least one fixed contact, at least two other fixed contacts connected together by an electric bridge or a fusible member and each forming one of the fixed contacts connected to said terminals a pair of fixed contacts, at least one first movable contact associated with each pair of fixed contacts to establish an electrical connection between these fixed contacts, the control module comprising at least one control axis passing through said cut-off module and carrying at least a first cam arranged to move said first movable contacts between a first stable position called the tripped position, in which they are distant from the fixed contacts, and a second stable position called the engaged position, in which they are in abutment against the fixed contacts.
  • switches These breaking devices commonly called switches, fuse switches or change-over switches are intended to distribute energy in electrical installations or to control industrial equipment, in particular at low AC voltage, for example 380 V, and in a current range. from a few tens to a few thousand amps.
  • the so-called double breaking devices comprise two movable contacts per pole or per breaking module, each movable contact comprising for example two contact surfaces arranged to position themselves on the contact surfaces of the corresponding fixed contact, these contact surfaces being constituted for example from bosses or pellets.
  • Each movable contact is also subject to a spring member, the function of which is to maintain the movable contact pressing under pressure on the fixed contact, in the engaged position.
  • the actuation mechanism of the control module generally comprises at least one cam which transforms the rotational movement of a control handle into a translational movement of the movable contacts.
  • This actuation mechanism is, moreover, coupled to a snap actuation device which, independently of the speed of rotation of the control handle, makes it possible to accelerate the speed when switching on or off, as the case may be.
  • This abruptly actuated device stores the mechanical energy of a spring before the equilibrium point of the device to restore it quickly after the equilibrium point.
  • the actuating force on release must be at least equal to the sum of the forces of the spring of the movable contact and the spring of the actuating device sudden.
  • the maneuvering effort is almost zero.
  • This configuration has the advantage of guaranteeing a very fast closure of the contacts and of allowing any play to be made up, especially in the event of wear of the pads.
  • the disadvantages of this configuration are numerous.
  • the mounting of the spring in the housing at the rear of the movable contact is complex. The opening of the contacts is difficult and the opening speed is reduced taking into account the need to compress the spring or springs.
  • the spring When the contacts are open, the spring is compressed to the maximum and generates on the movable contact a force much greater than the force necessary, in this position, to close the contacts, while when the contacts are closed, the spring is relaxed and exerts only limited force.
  • the actuating force on release is almost zero, while the force on engagement must be at least equal the sum of the forces of the spring of the movable contact and the spring of the snap-action device.
  • This configuration has the advantage of allowing a simple and automated mounting of the spring and of the movable contact, of guaranteeing a very rapid opening of the contacts and of ensuring an optimal contact pressure, this spring being compressed only at the end of its travel, when the movable contacts approach the fixed contacts.
  • this configuration does not allow any play to be made up, in particular in the event of significant or abnormal wear of the pads.
  • EP-A-496213 proposes a solution by associating with each fixed contact a pair of mobile contacts parallel to each other and applying on either side of the fixed contact, each mobile contact being biased by a spring and being mounted in a slide controlled in translation.
  • the cut-off device in question has a completely different design from that of the invention, the cut-off modules being arranged side by side and not being crossed by the control axis. Consequently, all of the slides are controlled in translation by a cam secured to the control axis and a succession of links transmitting the operating force from one module to the other. This movement transmission mechanism is therefore very complex, expensive, unreliable in terms of force transmission and electrical switching and very bulky.
  • the present invention aims to solve this problem by proposing a switching device which combines the two configurations described above in order to take advantage of the advantages of each while offering a simplified cutting device, with few parts, of small footprint even for high current flow sections, economical taking into account a standardized design and the reduced number of parts, requiring a device with abrupt actuation of less importance, facilitating handling by considerably reducing the maneuvering force to be applied, while improving the electrical switching characteristics and in compliance with the standards in force.
  • each breaking module comprises at least one second movable contact associated with each pair of fixed contacts, arranged opposite the corresponding first movable contact and on the other side of said pair of fixed contacts, in that the control axis carries at least a second cam arranged to move said second movable contacts between the tripped position and the engaged position simultaneously with said first movable contacts and in that said control axis comprises at least one radially extending disc, the first cam being provided on a first face of this disc and the second cam being provided on the second face of said disc.
  • each breaking module comprises a first slider coupled to said first movable contact and to said first cam and a second slider coupled to said second movable contact and to said second cam.
  • the first slide is mounted to slide in said housing
  • the first movable contact is mounted to slide in said first slide and subject to a first spring member mounted between said housing and said first movable contact.
  • the second slider is mounted to slide in said first slider, the second movable contact is slidably mounted in said second slider and subjected to a second spring member mounted between said second slider and said second movable contact.
  • control axis comprises two parallel discs, symmetrical and spaced by an interval substantially equal to the width of the second slide, the first cams being provided on a first face of these discs and the second cams being provided on a second face of said discs.
  • the first cams can be provided on the outer face of said discs and consist of a cam profile, said first slide comprising two arms provided at their ends with a roller intended to cooperate with said cam profile.
  • the second cams can be provided on the inner face of said discs and consist of a cam groove, said second slide comprising two lugs intended to slide in said cam groove.
  • the first and second cams are arranged to bring the first and second movable contacts associated with each pair of fixed contacts together, upon engagement, and separate, upon release.
  • the first and second cams are arranged so that, on engagement, the second movable contacts approach the fixed contacts before the first movable contacts and, on triggering, the first movable contacts open before the second movable contacts.
  • the movable contacts can have a folded shape and have an offset central part. They can also have a smaller section than the first mobile contacts.
  • the fixed and mobile contacts can, moreover, be at least doubled.
  • said housing may have openings facing said first spring members and removable plates arranged to close these said openings after mounting of said springs.
  • FIG. 1 represents an exploded perspective view of a cut-off module of the apparatus according to the invention
  • FIG. 2 is a perspective view of the cut-off module of FIG. 1 mounted but without a housing
  • FIG. 3 is a perspective view of the cut-off module of FIG. 1 mounted in its housing
  • FIG. 4 is a perspective view of the cut-off device according to the invention comprising three cut-off modules and a control module
  • FIGS. 5A and 5B are schematic plan views of the cut-off module in the triggered position
  • FIGS. 6A and 6B are schematic plan views of the cut-off module in the engaged position
  • FIG. 7 schematically represents the forces of attraction and repulsion at level of the electrical contacts of the cut-off module in the engaged position.
  • the electrical switching device 1 according to the invention is intended to equip any type of industrial electrical installation in low voltage comprising at least two electrical conductors. For example, they may be electrical installations supplied with three-phase alternating current with or without a neutral conductor.
  • the switching device 1 For questions of standardization of the parts and simplicity of mounting of the switching device 1, whatever the number of conductors of the electrical installation, it comprises in known manner a number of switching modules 10 equal to the number of conductors phase or neutral of said installation, these cut-off modules 10 being identical and assembled adjacent, as well as a common control module 11, provided with an actuating mechanism 12 coupled to said cut-off modules 10.
  • the switching device 1 comprises three switching modules 10 and a control module 11, the control handle 13 is only shown in Figure 3. It is therefore usable for a three-phase installation.
  • each cutting module 10 comprises, in known manner, an electrically insulated housing 2, formed of two half-shells 20, 21 for example obtained by molding a synthetic material.
  • an electrically insulated housing 2 formed of two half-shells 20, 21 for example obtained by molding a synthetic material.
  • a half-shell 20 is shown. It comprises an input terminal 3 and an output terminal 3 ', aligned and formed by a plate 30 of electrically conductive material, each provided with a hole 31 for receiving an electrical connection.
  • Each terminal 3, 3 ' is connected to at least one fixed contact 4 provided with a contact pad 40 or a boss or even any other suitable contact surface.
  • the fixed contacts 4 are doubled to respond to strong currents such as 630 or 800 A. They can also be tripled, for example, for currents of 1250 A or more.
  • Each fixed contact 4 is associated with another fixed contact 4 'to form a pair of fixed contacts. These other contacts. fixed 4 'are connected between them by an electric bridge or by a fusible member. Each pair of fixed contacts 4, 4 'is arranged in a plane and the two pairs of fixed contacts 4, 4' are parallel.
  • the housing 2 has openings 22, 23 and internal shapes 24 defining passages and housings to receive the input 3 and output 3 'terminals and their fixed contacts 4 as well as the other fixed contacts 4' intended to be connected to a fuse 5 as illustrated in Figure 3.
  • Each pair of fixed contacts 4, 4 ' is associated with a first mobile contact 6, arranged in parallel and arranged to move in translation perpendicular to the plane passing through these two fixed contacts 4, 4' to establish or interrupt the electrical connection between these contacts.
  • fixed 4, 4 ' Since the pairs of fixed contacts 4, 4 'are doubled, the associated mobile contacts 6 are also.
  • Each first movable contact 6 consists of a substantially rectangular plate 61, made of electrically conductive material, and provided in its two end zones with a contact pad 60 disposed opposite the contact pads 40 of the pair of contacts fixed 4, 4 'corresponding.
  • Each first movable contact 6 is associated with a first spring member 62, consisting for example of a helical compression spring or any other equivalent spring member, disposed between this movable contact 6 and the housing 2.
  • This spring 62 exerts a force of thrust on this movable contact 6 in the direction of the fixed contacts 4, 4 '.
  • the housing 2 comprises, in correspondence with said first spring 62, an opening 25 and a removable plate 26 intended to close this opening 25 after the installation of this spring 62.
  • Each first contact mobile 6 is mounted in a first slide 63 coupled to the actuation mechanism 12 of the control module 11.
  • This first slide 63 has a general U shape, the two arms 64 of the U being terminated by a roller 65 and the crossbar 66 U serving as a support for the first movable contact 6.
  • This first slide 63 is slidably mounted in the housing 2 of the cut-off module 10 by means of guide rails 27 arranged to receive the arms 64 of said slide 63.
  • the actuation mechanism 12 of the control module 11 comprises an operating handle 13 (cf. fig. 3) integral with a control axis 14 passing through the cut-off modules 10 and carrying at least one radial disc 15 on which is provided at least a first cam 16.
  • This first cam 16 consists of a cam profile which cooperates with the roller 65 provided at the end of one of the arms 64 of the first slide 63.
  • the axis control 14 carries two parallel radial discs 15, each carrying on its face facing outwards a cam profile 16.
  • the arms 64 of the first slide 63 surrounds the two discs 15 so that each roller 65 cooperates with the cam profile 16 corresponding.
  • Each disc 15 carries a second cam profile 16 identical but diametrically opposite to control the movement of the first movable contact 6 associated with the other pair of fixed contacts 4, 4 '.
  • These cam profiles 16 are arranged to move the first movable contacts 6 between a first stable position called the tripped position, in which they are distant from the fixed contacts 4, 4 ', and a second stable position called the engaged position, in which they are in support against fixed contacts 4, 4 '.
  • each pair of fixed contacts 4, 4 ′ is also associated with a second movable contact 7, arranged in parallel and facing the first movable contact 6, of the 'other side of the pair of fixed contacts 4, 4' and arranged to move in translation perpendicular to the plane passing through these two fixed contacts 4, 4 '.
  • each pair of fixed contact 4, 4 ' is arranged between two movable contacts 6, 7, called first 6 and second 7 movable contacts.
  • the first movable contact 6 is outside and arranged near the housing 2 and the second movable contact 7 is inside and arranged near the control axis 14.
  • Each second movable contact 7 consists of a substantially rectangular plate 71, made of electrically conductive material, and provided in its two end zones of a contact pad 70, or of any other suitable contact surface, arranged facing contact pads 40 provided on the other face of the pair of corresponding fixed contacts 4, 4 ′.
  • Each second movable contact 7 is mounted in a second slide 73 coupled to the actuation mechanism 12 of the control module 11.
  • This second slide 73 has a general form of frame inside which is housed the second movable contact 7 with a certain working game.
  • This second movable contact 7 is subject to a second spring member 72, such as for example a helical compression spring or any other equivalent spring member, disposed between the second movable contact 7 and the second slide 73.
  • This spring 72 exerts a force of thrust on this movable contact 7 and the plate against the frame of said second slide 73 in the direction of the pair of fixed contacts 4, 4 '.
  • the second slide 73 is housed between the arms 64 of the first slide 63 and is guided in translation by these arms. Indeed, the greatest width of the second slide 73 is substantially equal to the interval existing between the two arms 64 of the first slide 63.
  • This second slide 73 has a through rod 75 whose ends form two lugs 75 'arranged to cooperate with a second cam 17 provided in the actuating mechanism 12. For this purpose, the gap existing between the two radial discs 15 provided on the control axis 14 is substantially equal to the smallest width of this second slide 73.
  • This second cam 17 consists of a cam groove intended to receive the lug 75 'corresponding to the second slide 73.
  • Each disc 15 carries a second cam groove 17 identical but diametrically opposite to control the movement of the second movable contact 7 associated with the other pair of fixed contacts 4, 4 '.
  • This cam groove 17 is arranged to move the second movable contacts 7, simultaneously with the first movable contacts 6, between a first stable position called the tripped position, in which they are distant from the fixed contacts 4, 4 ', and a second stable position known as the engaged position, in which they are pressed against the fixed contacts 4, 4'.
  • the compression force of the first springs 62 is substantially compensated by the decompression force of the second springs 72, which facilitates the maneuver.
  • the device with abrupt actuation (not shown), associated with the actuation mechanism 12 of the control module 11, has exceeded its point of equilibrium, the second movable contacts 7 are in abutment against their slide 73, and the movable contacts 6 , 7 open quickly, the device with abrupt actuation having only the compression force of the first springs 62 to be compensated.
  • FIGS. 6A, 6B the mobile contacts 6, 7 are closed and bear against the fixed contacts 4, 4 '.
  • the electrical connection between the fixed contacts 4, 4 ' is established. It is said that the cut-off module 10 is in the engaged position. In this position, the control axis 14 of the actuating mechanism 12 has rotated clockwise and the first cams 16 have brought the first slides 63 closer to the central axis A by relaxing the first springs 62. Simultaneously, the seconds cams 17 have moved the second slides 73 away from the central axis A by compressing the second springs 72 only at the end of the travel when the second movable contacts 7 have approached the fixed contacts 4, 4 '.
  • the compression force of the second springs 72 is substantially compensated by the decompression force of the first springs 62, which also facilitates the maneuver.
  • the device with abrupt actuation (not shown), associated with the actuation mechanism 12 of the control module 11, has exceeded its point of equilibrium, the second movable contacts 7 are in abutment against the fixed contacts 4, 4 ′, and the movable contacts 6, 7 close quickly, the device with abrupt actuation having only the compression force of the second springs 72 to be compensated.
  • the switching device 1 according to the invention makes it possible to obtain a better distribution of the forces on switching on and off. Therefore, the device with abrupt actuation can be of reduced size compared to conventional cut-off devices with a single movable contact, which makes the cut-off device 1 of the invention more economical.
  • the curve of the cam profiles 16 and that of the cam grooves 17 are defined in such a way that upon engagement, the second movable contacts 7 approach the fixed contacts 4, 4 ′ before the first movable contacts 6 and, that tripping, the first movable contacts 6 open before the second movable contacts 7.
  • the second movable contacts 7 may have a smaller section than the first mobile contacts 6.
  • the ratio of their section can be between 1.10 and 1.50 and preferably equal to 1.25.
  • the first movable contact 6 can have a width of 19 mm and the second movable contact 7 a width of 15 mm.
  • the second movable contacts 7, which are the smallest, are the first to engage and the last to trigger, they support all electric arcs. This means that the first contacts 6, which are the largest, do not have this constraint and remain perfectly clean. It is also possible to adjust the composition of the material used for the contact pads 60, 70 of the first 6 and second 7 movable contacts in order to optimize their effectiveness.
  • the behavior at 3F according to standard IEC 947-1 is much better.
  • the movable contacts 6, 7 have a particular geometry which favors the electrical connection with the fixed contacts 4, 4 '. They are folded and have a central part offset so that in the engaged position, the central part of two movable contacts 6, 7 associated with a pair of fixed contacts 4, 4 'is as close as possible to the other.
  • the short-circuit withstand is greatly improved.
  • the arrangement of the different parts making up the cut-off module 10 of the cut-off device 1, according to the invention, makes it possible to obtain a high current flow section with a device of small size and greater cutting distances than in conventional switchgear.
  • the number of contact points is higher, which improves the electrotechnical function of this switching device 1.
  • this switching device 1 also makes it possible to have four fixed contacts 4, 4 ′ which are exactly identical, which makes it possible to limit the number of references to be manufactured and stored.
  • the same cut-off module 10 can be used regardless of the type of fuse 5 thanks to a universal support piece 50, which further reduces the number of references to be manufactured and stored.
  • the present invention is not limited to the embodiment described but extends to any modification and variant obvious to a person skilled in the art.
  • shape of the cams and of the slides can vary.
  • the number of fixed and mobile contacts can also be different as required.

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Abstract

The invention concerns a switching apparatus advantageously providing a better distribution of forces for pull-in and tripping forces, requiring reduced manoeuvring force, providing high-current circulation sections for limited space requirement. Said switching apparatus (1) is characterised in that each switching module (10) comprises for each fixed contact (4, 4'), two symmetrical mobile contacts (6, 7) arranged on either side of the fixed contact, each mobile contact (6, 7) is associated with a spring (62, 72) and coupled to a slide (63, 73) mobile in translation. The control module (11) comprises a control shaft (14) passing through the switching modules (10) and bearing cams (16, 17) co-operating with each slide (63, 73). Said cams (16, 17) are designed to move simultaneously the two mobile contacts (6, 7) of each fixed contact (4, 4') between a pulled-in position and a tripped position. The invention is applicable to any industrial electrical installation.

Description

APPAREIL DE COUPURE ELECTRIQUE POUR INSTALLATION ELECTRIQUEELECTRICAL SWITCHING APPARATUS FOR ELECTRICAL INSTALLATION

La présente invention concerne un appareil de coupure électrique pour installation électrique comportant au moins deux conducteurs électriques, cet appareil comportant au moins un module de coupure associé à chaque conducteur et un module de commande commun, chaque module de coupure comportant un boîtier isolé électriquement, au moins une borne d'entrée et une borne de sortie, chaque borne étant reliée à au moins un contact fixe, au moins deux autres contacts fixes reliés entre eux par un pont électrique ou un organe fusible et formant chacun avec un des contacts fixes reliés auxdites bornes une paire de contacts fixes, au moins un premier contact mobile associé à chaque paire de contacts fixes pour établir une connexion électrique entre ces contacts fixes, le module de commande comportant au moins un axe de commande traversant ledit module de coupure et portant au moins une première came agencée pour déplacer lesdits premiers contacts mobiles entre une première position stable dite position déclenchée, dans laquelle ils sont éloignés des contacts fixes, et une seconde position stable dite position enclenchée, dans laquelle ils sont en appui contre les contacts fixes.The present invention relates to an electrical switching device for electrical installation comprising at least two electrical conductors, this device comprising at least one switching module associated with each conductor and a common control module, each switching module comprising an electrically insulated housing, at at least one input terminal and one output terminal, each terminal being connected to at least one fixed contact, at least two other fixed contacts connected together by an electric bridge or a fusible member and each forming one of the fixed contacts connected to said terminals a pair of fixed contacts, at least one first movable contact associated with each pair of fixed contacts to establish an electrical connection between these fixed contacts, the control module comprising at least one control axis passing through said cut-off module and carrying at least a first cam arranged to move said first movable contacts between a first stable position called the tripped position, in which they are distant from the fixed contacts, and a second stable position called the engaged position, in which they are in abutment against the fixed contacts.

Ces appareils de coupure appelés communément interrupteurs, interrupteurs-fusibles ou commutateurs-inverseurs sont destinés à distribuer l'énergie dans des installations électriques ou à commander des équipements industriels, notamment en basse tension alternative, par exemple 380 V, et dans une plage de courant de quelques dizaines à quelques milliers d'ampères.These breaking devices commonly called switches, fuse switches or change-over switches are intended to distribute energy in electrical installations or to control industrial equipment, in particular at low AC voltage, for example 380 V, and in a current range. from a few tens to a few thousand amps.

Les appareils de coupure dits à double coupure comportent deux contacts mobiles par pôle ou par module de coupure, chaque contact mobile comportant par exemple deux surfaces de contact agencées pour se positionner sur les surfaces de contact du contact fixe correspondant, ces surfaces de contact étant constituées par exemple de bossages ou de pastilles. Chaque contact mobile est également assujetti à un organe ressort dont la fonction est de maintenir le contact mobile en appui sous pression sur le contact fixe, en position enclenchée.The so-called double breaking devices comprise two movable contacts per pole or per breaking module, each movable contact comprising for example two contact surfaces arranged to position themselves on the contact surfaces of the corresponding fixed contact, these contact surfaces being constituted for example from bosses or pellets. Each movable contact is also subject to a spring member, the function of which is to maintain the movable contact pressing under pressure on the fixed contact, in the engaged position.

Le mécanisme d'actionnement du module de commande comporte généralement au moins une came qui transforme le mouvement de rotation d'une poignée de commande en un mouvement de translation des contacts mobiles. Ce mécanisme d'actionnement est, par ailleurs, couplé à un dispositif à actionnement brusque qui, indépendamment de la vitesse de rotation de la poignée de commande, permet d'accélérer la vitesse à l'enclenchement ou au déclenchement, selon les cas. Ce dispositif à actionnement brusque emmagasine l'énergie mécanique d'un ressort avant le point d'équilibre du dispositif pour la restituer rapidement après le point d'équilibre. Les avantages et inconvénients de ces appareils de coupure sont divers en fonction de la configuration de montage du contact mobile et de son ressort.The actuation mechanism of the control module generally comprises at least one cam which transforms the rotational movement of a control handle into a translational movement of the movable contacts. This actuation mechanism is, moreover, coupled to a snap actuation device which, independently of the speed of rotation of the control handle, makes it possible to accelerate the speed when switching on or off, as the case may be. This abruptly actuated device stores the mechanical energy of a spring before the equilibrium point of the device to restore it quickly after the equilibrium point. The advantages and disadvantages of these switching devices are diverse depending on the mounting configuration of the movable contact and its spring.

Dans la configuration où le ressort est disposé directement entre le boîtier du module de coupure et le contact mobile, l'effort de manœuvre au déclenchement doit être au moins égal à la somme des forces du ressort du contact mobile et du ressort du dispositif à actionnement brusque. Par contre, à l'enclenchement, l'effort de manœuvre est quasiment nul. Cette configuration a comme avantage de garantir une fermeture des contacts très rapide et de permettre un rattrapage des jeux éventuels, notamment en cas d'usure des pastilles. Néanmoins, les inconvénients de cette configuration sont nombreux. Le montage du ressort dans le boîtier à l'arrière du contact mobile est complexe. L'ouverture des contacts est difficile et la vitesse d'ouverture est réduite compte tenu de la nécessité de comprimer le ou les ressorts. Quand les contacts sont ouverts, le ressort est comprimé au maximum et génère sur le contact mobile une force beaucoup plus importante que l'effort nécessaire, dans cette position, à la fermeture des contacts, alors que lorsque les contacts sont fermés, le ressort est détendu et n'exerce qu'une force limitée. Dans la configuration où le contact mobile est monté sur un coulisseau et le ressort est monté entre le coulisseau et le contact mobile, l'effort de manœuvre au déclenchement est quasiment nul, alors que l'effort à l'enclenchement doit être au moins égal à la somme des forces du ressort du contact mobile et du ressort du dispositif à actionnement brusque. Cette configuration a comme avantage de permettre un montage simple et automatisé du ressort et du contact mobile, de garantir une ouverture des contacts très rapide et d'assurer une pression de contact optimale, ce ressort n'étant comprimé qu'en fin de course, lorsque les contacts mobiles accostent les contacts fixes. Néanmoins, cette configuration ne permet pas de rattraper les jeux éventuels, notamment en cas d'usure importante ou anormale des pastilles.In the configuration where the spring is placed directly between the breaking module housing and the movable contact, the actuating force on release must be at least equal to the sum of the forces of the spring of the movable contact and the spring of the actuating device sudden. On the other hand, when switching on, the maneuvering effort is almost zero. This configuration has the advantage of guaranteeing a very fast closure of the contacts and of allowing any play to be made up, especially in the event of wear of the pads. However, the disadvantages of this configuration are numerous. The mounting of the spring in the housing at the rear of the movable contact is complex. The opening of the contacts is difficult and the opening speed is reduced taking into account the need to compress the spring or springs. When the contacts are open, the spring is compressed to the maximum and generates on the movable contact a force much greater than the force necessary, in this position, to close the contacts, while when the contacts are closed, the spring is relaxed and exerts only limited force. In the configuration where the movable contact is mounted on a slider and the spring is mounted between the slider and the movable contact, the actuating force on release is almost zero, while the force on engagement must be at least equal the sum of the forces of the spring of the movable contact and the spring of the snap-action device. This configuration has the advantage of allowing a simple and automated mounting of the spring and of the movable contact, of guaranteeing a very rapid opening of the contacts and of ensuring an optimal contact pressure, this spring being compressed only at the end of its travel, when the movable contacts approach the fixed contacts. However, this configuration does not allow any play to be made up, in particular in the event of significant or abnormal wear of the pads.

Par conséquent, aucune de ces deux configurations existantes n'est entièrement satisfaisante. Néanmoins, chacune présente des avantages techniquement intéressants.Consequently, neither of these two existing configurations is entirely satisfactory. However, each has technically interesting advantages.

La publication EP-A-496213 propose une solution en associant à chaque contact fixe une paire de contacts mobiles parallèles entre eux et s'appliquant de part et d'autre du contact fixe, chaque contact mobile étant sollicité par un ressort et étant monté dans un coulisseau commandé en translation. L'appareil de coupure en question présente une conception totalement différente de celle de l'invention, les modules de coupure étant disposés côte à côte et n'étant pas traversés par l'axe de commande. Par conséquent, l'ensemble des coulisseaux est commandé en translation par une came solidaire de l'axe de commande et une succession de biellettes transmettant l'effort de manœuvre d'un module à l'autre. Ce mécanisme de transmission de mouvement est par conséquent très complexe, onéreux, non fiable en terme de transmission des efforts et de commutation électrique et très encombrant. La présente invention vise à résoudre ce problème en proposant un appareil de coupure qui combine les deux configurations décrites ci-dessus afin de profiter des avantages de chacune tout en offrant un appareil de coupure simplifié, avec peu de pièces, de faible encombrement même pour des sections de passage de courant élevées, économique compte tenu d'une conception standardisée et du nombre réduit de pièces, nécessitant un dispositif à actionnement brusque de moindre importance, facilitant la manipulation en réduisant considérablement l'effort de manœuvre à appliquer, tout en améliorant les caractéristiques de commutation électrique et en respectant les normes en vigueur.Publication EP-A-496213 proposes a solution by associating with each fixed contact a pair of mobile contacts parallel to each other and applying on either side of the fixed contact, each mobile contact being biased by a spring and being mounted in a slide controlled in translation. The cut-off device in question has a completely different design from that of the invention, the cut-off modules being arranged side by side and not being crossed by the control axis. Consequently, all of the slides are controlled in translation by a cam secured to the control axis and a succession of links transmitting the operating force from one module to the other. This movement transmission mechanism is therefore very complex, expensive, unreliable in terms of force transmission and electrical switching and very bulky. The present invention aims to solve this problem by proposing a switching device which combines the two configurations described above in order to take advantage of the advantages of each while offering a simplified cutting device, with few parts, of small footprint even for high current flow sections, economical taking into account a standardized design and the reduced number of parts, requiring a device with abrupt actuation of less importance, facilitating handling by considerably reducing the maneuvering force to be applied, while improving the electrical switching characteristics and in compliance with the standards in force.

Dans ce but, l'invention concerne un appareil de coupure du genre indiqué en préambule, caractérisé en ce que chaque module de coupure comporte au moins un second contact mobile associé à chaque paire de contacts fixes, disposé en regard du premier contact mobile correspondant et de l'autre côté de ladite paire de contacts fixes, en ce que l'axe de commande porte au moins une seconde came agencée pour déplacer lesdits seconds contacts mobiles entre la position déclenchée et la position enclenchée simultanément auxdits premiers contacts mobiles et en ce que ledit axe de commande comporte au moins un disque s'étendant radialement, la première came étant prévue sur une première face de ce disque et la seconde came étant prévue sur la seconde face dudit disque.To this end, the invention relates to a breaking device of the kind indicated in the preamble, characterized in that each breaking module comprises at least one second movable contact associated with each pair of fixed contacts, arranged opposite the corresponding first movable contact and on the other side of said pair of fixed contacts, in that the control axis carries at least a second cam arranged to move said second movable contacts between the tripped position and the engaged position simultaneously with said first movable contacts and in that said control axis comprises at least one radially extending disc, the first cam being provided on a first face of this disc and the second cam being provided on the second face of said disc.

Dans une forme de réalisation préférée de l'invention, chaque module de coupure comporte un premier coulisseau couplé audit premier contact mobile et à ladite première came et un second coulisseau couplé audit second contact mobile et à ladite seconde came.In a preferred embodiment of the invention, each breaking module comprises a first slider coupled to said first movable contact and to said first cam and a second slider coupled to said second movable contact and to said second cam.

De manière avantageuse, le premier coulisseau est monté coulissant dans ledit boîtier, le premier contact mobile est monté coulissant dans ledit premier coulisseau et assujetti à un premier organe ressort monté entre ledit boîtier et ledit premier contact mobile.Advantageously, the first slide is mounted to slide in said housing, the first movable contact is mounted to slide in said first slide and subject to a first spring member mounted between said housing and said first movable contact.

De manière tout aussi avantageuse, le second coulisseau est monté coulissant dans ledit premier coulisseau, le second contact mobile est monté coulissant dans ledit second coulisseau et assujetti à un second organe ressort monté entre ledit second coulisseau et ledit second contact mobile.In an equally advantageous manner, the second slider is mounted to slide in said first slider, the second movable contact is slidably mounted in said second slider and subjected to a second spring member mounted between said second slider and said second movable contact.

Dans la forme de réalisation préférée, l'axe de commande comporte deux disques parallèles, symétriques et distants d'un intervalle sensiblement égal à la largeur du second coulisseau, les premières cames étant prévues sur une première face de ces disques et les secondes cames étant prévues sur une seconde face desdits disques.In the preferred embodiment, the control axis comprises two parallel discs, symmetrical and spaced by an interval substantially equal to the width of the second slide, the first cams being provided on a first face of these discs and the second cams being provided on a second face of said discs.

Les premières cames peuvent être prévues sur la face extérieure desdits disques et sont constituées d'un profil de came, ledit premier coulisseau comportant deux bras pourvus à leurs extrémités d'un galet destiné à coopérer avec ledit profil de came. Dans ce cas, les secondes cames peuvent être prévues sur la face intérieure desdits disques et sont constituées d'une rainure de came, ledit second coulisseau comportant deux ergots destinés à coulisser dans ladite rainure de came.The first cams can be provided on the outer face of said discs and consist of a cam profile, said first slide comprising two arms provided at their ends with a roller intended to cooperate with said cam profile. In this case, the second cams can be provided on the inner face of said discs and consist of a cam groove, said second slide comprising two lugs intended to slide in said cam groove.

De préférence, les première et seconde cames sont agencées pour rapprocher, à l'enclenchement, et séparer, au déclenchement, les premier et second contacts mobiles associés à chaque paire de contacts fixes. Et d'une manière avantageuse, les première et seconde cames sont agencées pour, qu'à l'enclenchement, les seconds contacts mobiles accostent les contacts fixes avant les premiers contacts mobiles et, qu'au déclenchement, les premiers contacts mobiles s'ouvrent avant les seconds contacts mobiles. Les contacts mobiles peuvent avoir une forme pliée et comporter une partie centrale décalée. Ils peuvent aussi avoir une section plus petite que les premiers contacts mobiles. Les contacts fixes et mobiles peuvent, par ailleurs, être au moins doublés.Preferably, the first and second cams are arranged to bring the first and second movable contacts associated with each pair of fixed contacts together, upon engagement, and separate, upon release. And in an advantageous manner, the first and second cams are arranged so that, on engagement, the second movable contacts approach the fixed contacts before the first movable contacts and, on triggering, the first movable contacts open before the second movable contacts. The movable contacts can have a folded shape and have an offset central part. They can also have a smaller section than the first mobile contacts. The fixed and mobile contacts can, moreover, be at least doubled.

Enfin, ledit boîtier peut comporter des ouvertures en regard desdits premiers organes ressort et des plaquettes amovibles agencées pour obturer ces dites ouvertures après montage desdits ressorts.Finally, said housing may have openings facing said first spring members and removable plates arranged to close these said openings after mounting of said springs.

La présente invention et ses avantages apparaîtront mieux dans la description suivante d'un exemple de réalisation, en référence aux dessins annexés, dans lesquels :The present invention and its advantages will appear more clearly in the following description of an exemplary embodiment, with reference to the appended drawings, in which:

la figure 1 représente une vue éclatée en perspective d'un module de coupure de l'appareil selon l'invention, - la figure 2 est une vue en perspective du module de coupure de la figure 1 monté mais sans boîtier, la figure 3 est une vue en perspective du module de coupure de la figure 1 monté dans son boîtier, la figure 4 est une vue en perspective de l'appareil de coupure selon l'invention comportant trois modules de coupure et un module de commande, les figures 5A et 5B sont des vues en plan schématique du module de coupure en position déclenchée, les figures 6A et 6B sont des vues en plan schématique du module de coupure en position enclenchée, et - la figure 7 représente schématiquement les forces d'attraction et de répulsion au niveau des contacts électriques du module de coupure en position enclenchée. En référence à la figure 4, l'appareil de coupure électrique 1 selon l'invention est destiné à équiper tout type d'installation électrique industrielle en basse tension comportant au moins deux conducteurs électriques. Par exemple, il peut s'agir d'installations électriques alimentées en courant alternatif triphasé avec ou sans conducteur de neutre.FIG. 1 represents an exploded perspective view of a cut-off module of the apparatus according to the invention, - FIG. 2 is a perspective view of the cut-off module of FIG. 1 mounted but without a housing, FIG. 3 is a perspective view of the cut-off module of FIG. 1 mounted in its housing, FIG. 4 is a perspective view of the cut-off device according to the invention comprising three cut-off modules and a control module, FIGS. 5A and 5B are schematic plan views of the cut-off module in the triggered position, FIGS. 6A and 6B are schematic plan views of the cut-off module in the engaged position, and FIG. 7 schematically represents the forces of attraction and repulsion at level of the electrical contacts of the cut-off module in the engaged position. With reference to FIG. 4, the electrical switching device 1 according to the invention is intended to equip any type of industrial electrical installation in low voltage comprising at least two electrical conductors. For example, they may be electrical installations supplied with three-phase alternating current with or without a neutral conductor.

Pour des questions de standardisation des pièces et de simplicité de montage de l'appareil de coupure 1, quel que soit le nombre de conducteurs de l'installation électrique, il comporte de manière connue un nombre de modules de coupure 10 égal au nombre de conducteurs de phase ou de neutre de ladite installation, ces modules de coupure 10 étant identiques et assemblés de manière adjacente, ainsi qu'un module de commande 11 commun, pourvu d'un mécanisme d'actionnement 12 couplé auxdits modules de coupure 10. Dans l'exemple illustré, l'appareil de coupure 1 comporte trois modules de coupure 10 et un module de commande 11, la poignée de commande 13 n'est représentée qu'à la figure 3. Il est donc utilisable pour une installation triphasée.For questions of standardization of the parts and simplicity of mounting of the switching device 1, whatever the number of conductors of the electrical installation, it comprises in known manner a number of switching modules 10 equal to the number of conductors phase or neutral of said installation, these cut-off modules 10 being identical and assembled adjacent, as well as a common control module 11, provided with an actuating mechanism 12 coupled to said cut-off modules 10. In the 'illustrated example, the switching device 1 comprises three switching modules 10 and a control module 11, the control handle 13 is only shown in Figure 3. It is therefore usable for a three-phase installation.

En référence aux figures 1 à 3, chaque module de coupure 10 comporte, de manière connue, un boîtier 2 isolé électriquement, formé de deux demi-coquilles 20, 21 par exemple obtenues par moulage d'une matière synthétique. Sur la figure 1, seule une demi-coquille 20 est représentée. Il comporte une borne d'entrée 3 et une borne de sortie 3', alignées et formées par une plaque 30 en matériau électriquement conducteur, chacune pourvue d'un trou 31 pour recevoir une connexion électrique. Chaque borne 3, 3' est reliée à au moins un contact fixe 4 pourvu d'une pastille de contact 40 ou d'un bossage ou encore de toute autre surface de contact adéquate. Dans l'exemple illustré, les contacts fixes 4 sont doublés pour répondre à des forts courants tels que 630 ou 800 A. Ils peuvent aussi être triplés, par exemple, pour des courants de 1250 A ou plus. Chaque contact fixe 4 est associé à un autre contact fixe 4' pour former une paire de contacts fixes. Ces autres contacts . fixes 4' sont reliés entre eux par un pont électrique ou par un organe fusible. Chaque paire de contacts fixes 4, 4' est disposée dans un plan et les deux paires de contacts fixes 4, 4' sont parallèles. Le boîtier 2 comporte des ouvertures 22, 23 et des formes intérieures 24 définissant des passages et des logements pour y recevoir les bornes d'entrée 3 et de sortie 3' et leurs contacts fixes 4 ainsi que les autres contacts fixes 4' destinés à être reliés à un fusible 5 comme illustré à la figure 3.Referring to Figures 1 to 3, each cutting module 10 comprises, in known manner, an electrically insulated housing 2, formed of two half-shells 20, 21 for example obtained by molding a synthetic material. In Figure 1, only a half-shell 20 is shown. It comprises an input terminal 3 and an output terminal 3 ', aligned and formed by a plate 30 of electrically conductive material, each provided with a hole 31 for receiving an electrical connection. Each terminal 3, 3 'is connected to at least one fixed contact 4 provided with a contact pad 40 or a boss or even any other suitable contact surface. In the example illustrated, the fixed contacts 4 are doubled to respond to strong currents such as 630 or 800 A. They can also be tripled, for example, for currents of 1250 A or more. Each fixed contact 4 is associated with another fixed contact 4 'to form a pair of fixed contacts. These other contacts. fixed 4 'are connected between them by an electric bridge or by a fusible member. Each pair of fixed contacts 4, 4 'is arranged in a plane and the two pairs of fixed contacts 4, 4' are parallel. The housing 2 has openings 22, 23 and internal shapes 24 defining passages and housings to receive the input 3 and output 3 'terminals and their fixed contacts 4 as well as the other fixed contacts 4' intended to be connected to a fuse 5 as illustrated in Figure 3.

Chaque paire de contacts fixes 4, 4' est associée à un premier contact mobile 6, disposé parallèlement et agencé pour se déplacer en translation perpendiculairement au plan passant par ces deux contacts fixes 4, 4' pour établir ou interrompre la connexion électrique entre ces contacts fixes 4, 4'. Etant donné que les paires contacts fixes 4, 4' sont doublées, les contacts mobiles 6 associés le sont également. Chaque premier contact mobile 6 est constitué d'une plaque 61 sensiblement rectangulaire, réalisée en matériau électriquement conducteur, et pourvue dans ses deux zones d'extrémité d'une pastille de contact 60 disposée en regard des pastilles de contact 40 de la paire de contacts fixes 4, 4' correspondante. Chaque premier contact mobile 6 est associé à un premier organe ressort 62, constitué par exemple d'un ressort hélicoïdal de compression ou de tout autre organe ressort équivalent, disposé entre ce contact mobile 6 et le boîtier 2. Ce ressort 62 exerce une force de poussée sur ce contact mobile 6 en direction des contacts fixes 4, 4'. Dans l'exemple représenté et pour faciliter le montage, le boîtier 2 comporte, en correspondance dudit premier ressort 62, une ouverture 25 et une plaquette amovible 26 destinée à obturer cette ouverture 25 après la mise en place de ce ressort 62. Chaque premier contact mobile 6 est monté dans un premier coulisseau 63 couplé au mécanisme d'actionnement 12 du module de commande 11. Ce premier coulisseau 63 présente une forme générale en U, les deux bras 64 du U étant terminés par un galet 65 et la barre transversale 66 du U servant d'appui au premier contact mobile 6. Ce premier coulisseau 63 est monté coulissant dans le boîtier 2 du module de coupure 10 au moyen de rails de guidage 27 agencés pour recevoir les bras 64 dudit coulisseau 63. Le mécanisme d'actionnement 12 du module de commande 11 comporte une poignée de manœuvre 13 (cf. fig. 3) solidaire d'un axe de commande 14 traversant les modules de coupure 10 et portant au moins un disque radial 15 sur lequel est prévue au moins une première came 16. Cette première came 16 est constituée d'un profil de came qui coopère avec le galet 65 prévu à l'extrémité d'un des bras 64 du premier coulisseau 63. Dans l'exemple représenté, l'axe de commande 14 porte deux disques radiaux 15 parallèles, portant chacun sur sa face tournée vers l'extérieur un profil de came 16. Les bras 64 du premier coulisseau 63 encadre les deux disques 15 pour que chaque galet 65 coopère avec le profil de came 16 correspondant. Chaque disque 15 porte un deuxième profil de came 16 identique mais diamétralement opposé pour commander le déplacement du premier contact mobile 6 associé à l'autre paire de contacts fixes 4, 4'. Ces profils de came 16 sont agencés pour déplacer les premiers contacts mobiles 6 entre une première position stable dite position déclenchée, dans laquelle ils sont éloignés des contacts fixes 4, 4', et une seconde position stable dite position enclenchée, dans laquelle ils sont en appui contre les contacts fixes 4, 4'.Each pair of fixed contacts 4, 4 'is associated with a first mobile contact 6, arranged in parallel and arranged to move in translation perpendicular to the plane passing through these two fixed contacts 4, 4' to establish or interrupt the electrical connection between these contacts. fixed 4, 4 '. Since the pairs of fixed contacts 4, 4 'are doubled, the associated mobile contacts 6 are also. Each first movable contact 6 consists of a substantially rectangular plate 61, made of electrically conductive material, and provided in its two end zones with a contact pad 60 disposed opposite the contact pads 40 of the pair of contacts fixed 4, 4 'corresponding. Each first movable contact 6 is associated with a first spring member 62, consisting for example of a helical compression spring or any other equivalent spring member, disposed between this movable contact 6 and the housing 2. This spring 62 exerts a force of thrust on this movable contact 6 in the direction of the fixed contacts 4, 4 '. In the example shown and to facilitate assembly, the housing 2 comprises, in correspondence with said first spring 62, an opening 25 and a removable plate 26 intended to close this opening 25 after the installation of this spring 62. Each first contact mobile 6 is mounted in a first slide 63 coupled to the actuation mechanism 12 of the control module 11. This first slide 63 has a general U shape, the two arms 64 of the U being terminated by a roller 65 and the crossbar 66 U serving as a support for the first movable contact 6. This first slide 63 is slidably mounted in the housing 2 of the cut-off module 10 by means of guide rails 27 arranged to receive the arms 64 of said slide 63. The actuation mechanism 12 of the control module 11 comprises an operating handle 13 (cf. fig. 3) integral with a control axis 14 passing through the cut-off modules 10 and carrying at least one radial disc 15 on which is provided at least a first cam 16. This first cam 16 consists of a cam profile which cooperates with the roller 65 provided at the end of one of the arms 64 of the first slide 63. In the example shown, the axis control 14 carries two parallel radial discs 15, each carrying on its face facing outwards a cam profile 16. The arms 64 of the first slide 63 surrounds the two discs 15 so that each roller 65 cooperates with the cam profile 16 corresponding. Each disc 15 carries a second cam profile 16 identical but diametrically opposite to control the movement of the first movable contact 6 associated with the other pair of fixed contacts 4, 4 '. These cam profiles 16 are arranged to move the first movable contacts 6 between a first stable position called the tripped position, in which they are distant from the fixed contacts 4, 4 ', and a second stable position called the engaged position, in which they are in support against fixed contacts 4, 4 '.

Dans le module de coupure 10 de l'appareil de coupure 1 selon l'invention, chaque paire de contacts fixes 4, 4' est également associée à un second contact mobile 7, disposé parallèlement et en regard du premier contact mobile 6, de l'autre côté de la paire de contacts fixes 4, 4' et agencé pour se déplacer en translation perpendiculairement au plan passant par ces deux contacts fixes 4, 4'. Ainsi, chaque paire de contact fixe 4, 4' est disposée entre deux contacts mobiles 6, 7, appelés premier 6 et second 7 contacts mobiles. Dans la description, le premier contact mobile 6 est extérieur et disposé à proximité du boîtier 2 et le second contact mobile 7 est intérieur et disposé à proximité de l'axe de commande 14.In the cut-off module 10 of the cut-off device 1 according to the invention, each pair of fixed contacts 4, 4 ′ is also associated with a second movable contact 7, arranged in parallel and facing the first movable contact 6, of the 'other side of the pair of fixed contacts 4, 4' and arranged to move in translation perpendicular to the plane passing through these two fixed contacts 4, 4 '. Thus, each pair of fixed contact 4, 4 'is arranged between two movable contacts 6, 7, called first 6 and second 7 movable contacts. In the description, the first movable contact 6 is outside and arranged near the housing 2 and the second movable contact 7 is inside and arranged near the control axis 14.

Chaque second contact mobile 7 est constitué d'une plaque 71 sensiblement rectangulaire, réalisée en matériau électriquement conducteur, et pourvue dans ses deux zones d'extrémité d'une pastille de contact 70, ou de toute autre surface de contact adéquate, disposée en regard de pastilles de contact 40 prévues sur l'autre face de la paire de contacts fixes 4, 4' correspondante. Chaque second contact mobile 7 est monté dans un second coulisseau 73 couplé au mécanisme d'actionnement 12 du module de commande 11. Ce second coulisseau 73 présente une forme générale de cadre à l'intérieur duquel est logé le second contact mobile 7 avec un certain jeu de fonctionnement. Ce second contact mobile 7 est assujetti à un second organe ressort 72, tel que par exemple un ressort hélicoïdal de compression ou tout autre organe ressort équivalent, disposé entre le second contact mobile 7 et le second coulisseau 73. Ce ressort 72 exerce une force de poussée sur ce contact mobile 7 et le plaque contre le cadre dudit second coulisseau 73 en direction de la paire de contacts fixes 4, 4'. Le second coulisseau 73 est logé entre les bras 64 du premier coulisseau 63 et est guidé en translation par ces bras. En effet, la plus grande largeur du second coulisseau 73 est sensiblement égale à l'intervalle existant entre les deux bras 64 du premier coulisseau 63. Ce second coulisseau 73 comporte une tige traversante 75 dont les extrémités forment deux ergots 75' agencés pour coopérer avec une seconde came 17 prévue dans le mécanisme d'actionnement 12. A cet effet, l'intervalle existant entre les deux disques radiaux 15 prévus sur l'axe de commande 14 est sensiblement égal à la plus petite largeur de ce second coulisseau 73.Each second movable contact 7 consists of a substantially rectangular plate 71, made of electrically conductive material, and provided in its two end zones of a contact pad 70, or of any other suitable contact surface, arranged facing contact pads 40 provided on the other face of the pair of corresponding fixed contacts 4, 4 ′. Each second movable contact 7 is mounted in a second slide 73 coupled to the actuation mechanism 12 of the control module 11. This second slide 73 has a general form of frame inside which is housed the second movable contact 7 with a certain working game. This second movable contact 7 is subject to a second spring member 72, such as for example a helical compression spring or any other equivalent spring member, disposed between the second movable contact 7 and the second slide 73. This spring 72 exerts a force of thrust on this movable contact 7 and the plate against the frame of said second slide 73 in the direction of the pair of fixed contacts 4, 4 '. The second slide 73 is housed between the arms 64 of the first slide 63 and is guided in translation by these arms. Indeed, the greatest width of the second slide 73 is substantially equal to the interval existing between the two arms 64 of the first slide 63. This second slide 73 has a through rod 75 whose ends form two lugs 75 'arranged to cooperate with a second cam 17 provided in the actuating mechanism 12. For this purpose, the gap existing between the two radial discs 15 provided on the control axis 14 is substantially equal to the smallest width of this second slide 73.

Ces disques radiaux 15 comportent sur leur face intérieure une seconde came 17. Cette seconde came 17 est constituée d'une rainure de came destinée à recevoir l'ergot 75' correspondant du second coulisseau 73. Chaque disque 15 porte une deuxième rainure de came 17 identique mais diamétralement opposée pour commander le déplacement du second contact mobile 7 associé à l'autre paire de contacts fixes 4, 4'. Cette rainure de came 17 est agencée pour déplacer les seconds contacts mobiles 7, simultanément aux premiers contacts mobiles 6, entre une première position stable dite position déclenchée, dans laquelle ils sont éloignés des contacts fixes 4, 4', et une seconde position stable dite position enclenchée, dans laquelle ils sont en appui contre les contacts fixes 4, 4'.These radial discs 15 have on their inner face a second cam 17. This second cam 17 consists of a cam groove intended to receive the lug 75 'corresponding to the second slide 73. Each disc 15 carries a second cam groove 17 identical but diametrically opposite to control the movement of the second movable contact 7 associated with the other pair of fixed contacts 4, 4 '. This cam groove 17 is arranged to move the second movable contacts 7, simultaneously with the first movable contacts 6, between a first stable position called the tripped position, in which they are distant from the fixed contacts 4, 4 ', and a second stable position known as the engaged position, in which they are pressed against the fixed contacts 4, 4'.

Le fonctionnement de l'appareil de coupure selon l'invention est à présent décrit en référence aux figures 5A, 5B et 6A, 6B .The operation of the switching device according to the invention is now described with reference to FIGS. 5A, 5B and 6A, 6B.

Dans les figures 5A, 5B, les contacts mobiles 6, 7 sont ouverts et sont éloignés des contacts fixes 4, 4'. La connexion électrique entre les contacts fixes 4, 4' est interrompue. On dit que le module de coupure 10 est en position déclenchée. Dans cette position, l'axe de commande 14 du mécanisme d'actionnement 12 a tourné dans le sens trigonométrique et les premières cames 16 ont éloigné les premiers coulisseaux 63 de l'axe central A en comprimant les premiers ressorts 62. Simultanément, les secondes cames 17 ont rapproché les seconds coulisseaux 73 de l'axe central A en détendant les seconds ressorts 72 sur un intervalle correspondant au jeu fonctionnel existant entre les seconds contacts mobiles 7 et leur coulisseau 73. La force de compression des premiers ressorts 62 est sensiblement compensée par la force de décompression des seconds ressorts 72, ce qui facilite la manœuvre. Quand le dispositif à actionnement brusque (non représenté), associé au mécanisme d'actionnement 12 du module de commande 11, a dépassé son point d'équilibre, les seconds contacts 7 mobiles sont en appui contre leur coulisseau 73, et les contacts mobiles 6, 7 s'ouvrent rapidement, le dispositif à actionnement brusque n'ayant que la force de compression des premiers ressorts 62 à compenser.In FIGS. 5A, 5B, the movable contacts 6, 7 are open and are distant from the fixed contacts 4, 4 '. The electrical connection between the fixed contacts 4, 4 'is interrupted. It is said that the cut-off module 10 is in the tripped position. In this position, the control axis 14 of the actuating mechanism 12 has rotated counterclockwise and the first cams 16 have moved the first sliders 63 away from the central axis A by compressing the first springs 62. Simultaneously, the seconds cams 17 have brought the second slides 73 closer to the central axis A by relaxing the second springs 72 over an interval corresponding to the functional clearance existing between the second movable contacts 7 and their slide 73. The compression force of the first springs 62 is substantially compensated by the decompression force of the second springs 72, which facilitates the maneuver. When the device with abrupt actuation (not shown), associated with the actuation mechanism 12 of the control module 11, has exceeded its point of equilibrium, the second movable contacts 7 are in abutment against their slide 73, and the movable contacts 6 , 7 open quickly, the device with abrupt actuation having only the compression force of the first springs 62 to be compensated.

Dans les figures 6A, 6B, les contacts mobiles 6, 7 sont fermés et sont en appui contre les contacts fixes 4, 4'. La connexion électrique entre les contacts fixes 4, 4' est établie. On dit que le module de coupure 10 est en position enclenchée. Dans cette position, l'axe de commande 14 du mécanisme d'actionnement 12 a tourné dans le sens horaire et les premières cames 16 ont rapproché les premiers coulisseaux 63 de l'axe central A en détendant les premiers ressorts 62. Simultanément, les secondes cames 17 ont éloigné les seconds coulisseaux 73 de l'axe central A en comprimant les seconds ressorts 72 uniquement en fin de course quand les seconds contacts mobiles 7 ont accosté les contacts fixes 4, 4'. La force de compression des seconds ressorts 72 est sensiblement compensée par la force de décompression des premiers ressorts 62, ce qui facilite également la manœuvre. Lorsque le dispositif à actionnement brusque (non représenté), associé au mécanisme d'actionnement 12 du module de commande 11, a dépassé son point d'équilibre, les seconds contacts mobiles 7 sont en appui contre les contacts fixes 4, 4', et les contacts mobiles 6, 7 se ferment rapidement, le dispositif à actionnement brusque n'ayant que la force de compression des seconds ressorts 72 à compenser.In FIGS. 6A, 6B, the mobile contacts 6, 7 are closed and bear against the fixed contacts 4, 4 '. The electrical connection between the fixed contacts 4, 4 'is established. It is said that the cut-off module 10 is in the engaged position. In this position, the control axis 14 of the actuating mechanism 12 has rotated clockwise and the first cams 16 have brought the first slides 63 closer to the central axis A by relaxing the first springs 62. Simultaneously, the seconds cams 17 have moved the second slides 73 away from the central axis A by compressing the second springs 72 only at the end of the travel when the second movable contacts 7 have approached the fixed contacts 4, 4 '. The compression force of the second springs 72 is substantially compensated by the decompression force of the first springs 62, which also facilitates the maneuver. When the device with abrupt actuation (not shown), associated with the actuation mechanism 12 of the control module 11, has exceeded its point of equilibrium, the second movable contacts 7 are in abutment against the fixed contacts 4, 4 ′, and the movable contacts 6, 7 close quickly, the device with abrupt actuation having only the compression force of the second springs 72 to be compensated.

Ainsi, il ressort clairement de cette description que l'appareil de coupure 1 selon l'invention permet d'obtenir une meilleure répartition des efforts à l'enclenchement et au déclenchement. De ce fait, le dispositif à actionnement brusque peut être de dimension réduite par rapport aux appareils de coupure classiques avec un seul contact mobile, ce qui rend l'appareil de coupure 1 de l'invention plus économique.Thus, it is clear from this description that the switching device 1 according to the invention makes it possible to obtain a better distribution of the forces on switching on and off. Therefore, the device with abrupt actuation can be of reduced size compared to conventional cut-off devices with a single movable contact, which makes the cut-off device 1 of the invention more economical.

Par ailleurs, le fait que les efforts des ressorts 62, 72 se compensent jusqu'au point d'équilibre du dispositif à actionnement brusque, le couple de manœuvre à fournir au niveau du mécanisme d'actionnement 12 est réduit sensiblement par rapport aux appareils de coupure classiques avec un seul contact mobile, ce qui facilite la manipulation des opérateurs.Furthermore, the fact that the forces of the springs 62, 72 compensate each other up to the point of equilibrium of the device with abrupt actuation, the operating torque to be supplied at the level of the actuation mechanism 12 is significantly reduced compared to the conventional shutdown with a single movable contact, which facilitates operator handling.

D'autres avantages découlent également de l'appareil de coupure 1 selon l'invention. La courbe des profils de came 16 et celle des rainures de came 17 sont définies de telle manière qu'à l'enclenchement, les seconds contacts mobiles 7 accostent les contacts fixes 4, 4' avant les premiers contacts mobiles 6 et, qu'au déclenchement, les premiers contacts mobiles 6 s'ouvrent avant les seconds contacts mobiles 7. Par ailleurs, les seconds contacts mobiles 7 peuvent avoir une section plus petite que les premiers contacts mobiles 6. Par exemple, le rapport de leur section peut être compris entre 1,10 et 1,50 et de préférence égal à 1,25. A titre d'exemple non limitatif, le premier contact mobile 6 peut avoir une largeur de 19 mm et le second contact mobile 7 une largeur de 15 mm.Other advantages also follow from the switching device 1 according to the invention. The curve of the cam profiles 16 and that of the cam grooves 17 are defined in such a way that upon engagement, the second movable contacts 7 approach the fixed contacts 4, 4 ′ before the first movable contacts 6 and, that tripping, the first movable contacts 6 open before the second movable contacts 7. Furthermore, the second movable contacts 7 may have a smaller section than the first mobile contacts 6. For example, the ratio of their section can be between 1.10 and 1.50 and preferably equal to 1.25. By way of nonlimiting example, the first movable contact 6 can have a width of 19 mm and the second movable contact 7 a width of 15 mm.

Du fait que les seconds contacts mobiles 7, qui sont les plus petits, sont les premiers à l'enclenchement et les derniers au déclenchement, ils supportent tous les arcs électriques. Ceci signifie que les premiers contacts 6, qui sont les plus grands, n'ont pas cette contrainte et restent parfaitement propres. Il est également possible d'ajuster la composition de la matière utilisée pour les pastilles de contact 60, 70 des premiers 6 et des seconds 7 contacts mobiles afin d'optimiser leur efficacité. On peut, par exemple, choisir pour les pastilles 60 des premiers contacts mobiles 6 un alliage favorisant la résistance de contact et donc limitant réchauffement et pour les pastilles 70 des seconds contacts mobiles 7 un alliage résistant à l'érosion causé par les arcs électriques.Because the second movable contacts 7, which are the smallest, are the first to engage and the last to trigger, they support all electric arcs. This means that the first contacts 6, which are the largest, do not have this constraint and remain perfectly clean. It is also possible to adjust the composition of the material used for the contact pads 60, 70 of the first 6 and second 7 movable contacts in order to optimize their effectiveness. One can, for example, choose for the pads 60 of the first movable contacts 6 an alloy promoting contact resistance and therefore limiting heating and for the pads 70 of the second movable contacts 7 an alloy resistant to erosion caused by electric arcs.

Du fait que les premiers contacts mobiles 6, qui sont les plus grands, sont en avance au déclenchement sur les seconds contacts 7, qui sont les plus petits, le comportement aux 3F selon la norme CEI 947-1 est nettement meilleur. En effet, ce sont les premiers contacts mobiles 6 qui auront tendance à se souder en cas de problème et, dans ce cas, ils bloqueront immédiatement le mécanisme d'actionnement 12 et éviteront le déclenchement du module de coupure 10.Because the first mobile contacts 6, which are the largest, are in advance on tripping on the second contacts 7, which are the smallest, the behavior at 3F according to standard IEC 947-1 is much better. In fact, these are the first movable contacts 6 which will tend to be welded in the event of a problem and, in this case, they will immediately block the actuation mechanism 12 and avoid tripping of the cut-off module 10.

De plus, les contacts mobiles 6, 7 présentent une géométrie particulière qui favorise la connexion électrique avec les contacts fixes 4, 4'. Ils sont plies et présentent une partie centrale décalée de manière qu'en position enclenchée, la partie centrale de deux contacts mobiles 6, 7 associés à une paire de contacts fixes 4, 4' soit la plus proche possible de l'autre. Quand le courant circule dans ces contacts 4, 4', 6, 7, il induit des forces d'attraction Fa dans cette partie centrale qui permettent de compenser sensiblement les < forces de répulsion Fr existantes au niveau des pastilles de contact 40, 60, 70 (cf. fig. 7). Ainsi, la tenue au court-circuit est grandement améliorée.In addition, the movable contacts 6, 7 have a particular geometry which favors the electrical connection with the fixed contacts 4, 4 '. They are folded and have a central part offset so that in the engaged position, the central part of two movable contacts 6, 7 associated with a pair of fixed contacts 4, 4 'is as close as possible to the other. When the current flows in these contacts 4, 4 ', 6, 7, it induces attraction forces Fa in this central part which make it possible to substantially compensate for the <repulsion forces Fr existing at the level of the contact pads 40, 60, 70 (cf. fig. 7). Thus, the short-circuit withstand is greatly improved.

L'agencement des différentes pièces composant le module de coupure 10 de l'appareil de coupure 1, selon l'invention, permet d'obtenir une section de passage de courant élevée avec un appareil de faible encombrement et des distances de sectionnement plus importantes que dans les appareils de coupure classiques. De plus, le nombre de points de contact est plus élevé, ce qui améliore la fonction électrotechnique de cet appareil de coupure 1.The arrangement of the different parts making up the cut-off module 10 of the cut-off device 1, according to the invention, makes it possible to obtain a high current flow section with a device of small size and greater cutting distances than in conventional switchgear. In addition, the number of contact points is higher, which improves the electrotechnical function of this switching device 1.

La conception de cet appareil de coupure 1 permet également d'avoir quatre contacts fixes 4, 4' exactement identiques, ce qui permet de limiter le nombre de références à fabriquer et à stocker. De même, le même module de coupure 10 peut être utilisé quel que soit le type de fusible 5 grâce à une pièce support 50 universelle, ce qui permet de réduire encore le nombre de références à fabriquer et à stocker. Enfin, il est possible de transformer un module de coupure 10 avec un fusible 5 en un module de coupure simple de forte puissance simplement en reliant les contacts fixes 4 couplés aux bornes d'entrée 3 et de sortie 3' par un premier pontage et les autres contacts fixes 4' par un second pontage.The design of this switching device 1 also makes it possible to have four fixed contacts 4, 4 ′ which are exactly identical, which makes it possible to limit the number of references to be manufactured and stored. Likewise, the same cut-off module 10 can be used regardless of the type of fuse 5 thanks to a universal support piece 50, which further reduces the number of references to be manufactured and stored. Finally, it is possible to transform a cut-off module 10 with a fuse 5 into a simple high-cut cut-off module simply by connecting the fixed contacts 4 coupled to the input 3 and output 3 'terminals by a first jumper and the other fixed contacts 4 'by a second bridging.

La présente invention n'est pas limitée à l'exemple de réalisation décrit mais s'étend à toute modification et variante évidente pour un homme du métier. Notamment, la forme des cames et des coulisseaux peut varier. Le nombre des contacts fixes et mobiles peut également être différent selon les besoins. The present invention is not limited to the embodiment described but extends to any modification and variant obvious to a person skilled in the art. In particular, the shape of the cams and of the slides can vary. The number of fixed and mobile contacts can also be different as required.

Claims

Revendications claims 1. Appareil de coupure (1) électrique pour installation électrique comportant au moins deux conducteurs électriques, cet appareil comportant au moins un module de coupure (10) associé à chaque conducteur et un module de commande (11) commun, chaque module de coupure (10) comportant un boîtier (2) isolé électriquement, au moins une borne d'entrée (3) et une borne de sortie (3'), chaque borne (3, 3') étant reliée à au moins un contact fixe (4), au moins deux autres contacts fixes (4') reliés entre eux par un pont électrique ou un organe fusible (5) et formant chacun avec un des contacts fixes (4) reliés auxdites bornes (3, 3') une paire de contacts fixes (4, 4'), au moins un premier contact mobile (6) associé à chaque paire de contacts fixes (4, 4') pour établir une connexion électrique entre ces contacts fixes (4, 4'), le module de commande (11) comportant au moins un axe de commande (14) traversant ledit module de coupure (10) et portant au moins une première came (16) agencée pour déplacer lesdits premiers contacts mobiles (6) entre une première position stable dite position déclenchée, dans laquelle ils sont éloignés des contacts fixes (4, 4'), et une seconde position stable dite position enclenchée, dans laquelle ils sont en appui contre les contacts fixes (4, 4'), caractérisé en ce que chaque module de coupure (10) comporte au moins un second contact mobile (7) associé à chaque paire de contacts fixes (4, 4'), disposé en regard du premier contact mobile (6) correspondant et de l'autre côté de ladite paire de contacts fixes (4, 4'), en ce que l'axe de commande (14) porte au moins une seconde came (17) agencée pour déplacer lesdits seconds contacts mobiles (7) entre la position déclenchée et la position enclenchée simultanément auxdits premiers contacts mobiles (6) et en ce que ledit axe de commande (14) comporte au moins un disque (15) s'étendant radialement, la première came (16) étant prévue sur une première face de ce disque et la seconde came (17) étant prévue sur la seconde face dudit disque. 1. Electrical breaking device (1) for an electrical installation comprising at least two electrical conductors, this device comprising at least one breaking module (10) associated with each conductor and a common control module (11), each breaking module ( 10) comprising an electrically insulated housing (2), at least one input terminal (3) and one output terminal (3 '), each terminal (3, 3') being connected to at least one fixed contact (4) , at least two other fixed contacts (4 ') connected together by an electric bridge or a fusible member (5) and each forming with one of the fixed contacts (4) connected to said terminals (3, 3') a pair of fixed contacts (4, 4 '), at least one first movable contact (6) associated with each pair of fixed contacts (4, 4') to establish an electrical connection between these fixed contacts (4, 4 '), the control module ( 11) comprising at least one control pin (14) passing through said cut-off module (10) and carrying at least one first cam ( 16) arranged to move said first movable contacts (6) between a first stable position known as the tripped position, in which they are distant from the fixed contacts (4, 4 ′), and a second stable position known as the engaged position, in which they are in support against the fixed contacts (4, 4 '), characterized in that each breaking module (10) comprises at least one second movable contact (7) associated with each pair of fixed contacts (4, 4'), arranged opposite of the corresponding first movable contact (6) and on the other side of said pair of fixed contacts (4, 4 '), in that the control shaft (14) carries at least a second cam (17) arranged to move said second movable contacts (7) between the tripped position and the engaged position simultaneously with said first movable contacts (6) and in that said control pin (14) comprises at least one disc (15) extending radially, the first cam (16) being provided on a first face of this disc and the second cam (17) being provided on the second face of said disc. 2. Appareil de coupure selon la revendication 1, caractérisé en ce que chaque module de coupure (10) comporte un premier coulisseau (63) couplé audit premier contact mobile (6) et à ladite première came (16) et un second coulisseau (73) couplé audit second contact mobile (7) et à ladite seconde came (17).2. Cutting device according to claim 1, characterized in that each cutting module (10) comprises a first slide (63) coupled to said first movable contact (6) and to said first cam (16) and a second slide (73 ) coupled to said second movable contact (7) and to said second cam (17). 3. Appareil de coupure selon la revendication 2, caractérisé en ce que le premier coulisseau (63) est monté coulissant dans ledit boîtier (2), le premier contact mobile (6) est monté coulissant dans ledit premier coulisseau (63) et assujetti à un premier organe ressort (62) monté entre ledit boîtier (2) et ledit premier contact mobile (6).3. Cutting device according to claim 2, characterized in that the first slide (63) is slidably mounted in said housing (2), the first movable contact (6) is slidably mounted in said first slide (63) and subject to a first spring member (62) mounted between said housing (2) and said first movable contact (6). 4. Appareil de coupure selon la revendication 3, caractérisé en ce que le second coulisseau (73) est monté coulissant dans ledit premier coulisseau (63), le second contact mobile (7) est monté coulissant dans ledit second coulisseau (73) et assujetti à un second organe ressort (72) monté entre ledit second coulisseau (73) et ledit second contact mobile (7).4. Cutting device according to claim 3, characterized in that the second slider (73) is slidably mounted in said first slider (63), the second movable contact (7) is slidably mounted in said second slider (73) and secured to a second spring member (72) mounted between said second slide (73) and said second movable contact (7). 5. Appareil de coupure selon la revendication 1, caractérisé en ce que l'axe de commande (14) comporte deux disques (15) parallèles, symétriques et distants d'un intervalle sensiblement égal à la largeur du second coulisseau (73), les premières cames (16) étant prévues sur une première face de ces disques (15) et les secondes cames (17) étant prévues sur une seconde face desdits disques (15).5. Cutting device according to claim 1, characterized in that the control shaft (14) comprises two discs (15) parallel, symmetrical and spaced by an interval substantially equal to the width of the second slide (73), the first cams (16) being provided on a first face of these discs (15) and the second cams (17) being provided on a second face of said discs (15). 6. Appareil de coupure selon la revendication 5, caractérisé en ce que les premières cames (16) sont prévues sur la face extérieure desdits disques (15) et sont constituées d'un profil de came, ledit premier coulisseau (63) comportant deux bras (64) pourvus à leurs extrémités d'un galet (65) destiné à coopérer avec ledit profil de came (16).6. Cutting device according to claim 5, characterized in that the first cams (16) are provided on the outer face of said discs (15) and consist of a cam profile, said first slide (63) comprising two arms (64) provided at their ends with a roller (65) intended to cooperate with said cam profile (16). 7. Appareil de coupure selon la revendication 5, caractérisé en ce que les secondes cames (17) sont prévues sur la face intérieure desdits disques (15) et sont constituées d'une rainure de came, ledit second coulisseau (73) comportant deux ergots (75') destinés à coulisser dans ladite rainure de came (17).7. Cutting device according to claim 5, characterized in that the second cams (17) are provided on the inner face of said discs (15) and are constituted a cam groove, said second slide (73) having two lugs (75 ') intended to slide in said cam groove (17). 8. Appareil de coupure selon la revendication 1, caractérisé en ce que les première (16) et seconde (17) cames sont agencées pour rapprocher, à l'enclenchement, et séparer, au déclenchement, les premier (6) et second (7) contacts mobiles associés à chaque paire de contacts fixes (4, 4').8. Cutting device according to claim 1, characterized in that the first (16) and second (17) cams are arranged to bring the first (6) and second (7) apart, upon engagement, and separate ) mobile contacts associated with each pair of fixed contacts (4, 4 '). 9. Appareil de coupure selon la revendication 8, caractérisé en ce que les première (16) et seconde (17) cames sont agencées pour, qu'à l'enclenchement, les seconds contacts mobiles (7) accostent les contacts fixes (4, 4') avant les premiers contacts mobiles (6) et, qu'au déclenchement, les premiers contacts mobiles (6) s'ouvrent avant les seconds contacts mobiles (7).9. Cutting device according to claim 8, characterized in that the first (16) and second (17) cams are arranged so that, upon engagement, the second movable contacts (7) approach the fixed contacts (4, 4 ') before the first movable contacts (6) and, when triggered, the first movable contacts (6) open before the second movable contacts (7). 10. Appareil de coupure selon la revendication 1, caractérisé en ce que les contacts mobiles (6, 7) ont une forme pliée et comporte une partie centrale décalée.10. Cutting device according to claim 1, characterized in that the movable contacts (6, 7) have a folded shape and has an offset central part. 11. Appareil de coupure selon la revendication 1, caractérisé en ce que les seconds contacts mobiles (7) ont une section plus petite que les premiers contacts mobiles (6).11. Cutting device according to claim 1, characterized in that the second movable contacts (7) have a smaller section than the first movable contacts (6). 12. Appareil de coupure selon la revendication 1, caractérisé en ce que chaque contact fixe (4, 4') et chaque premier (6) et second (7) contacts mobiles sont au moins doublés.12. Cutting device according to claim 1, characterized in that each fixed contact (4, 4 ') and each first (6) and second (7) movable contacts are at least doubled. 13. Appareil de coupure selon la revendication 1, caractérisé en ce que ledit boîtier13. Cutting device according to claim 1, characterized in that said housing (2) comporte des ouvertures (25) en regard desdits premiers organes ressort (62) et des plaquettes amovibles (26) agencées pour obturer ces dites ouvertures (25) après montage desdits ressorts (62). (2) has openings (25) facing said first spring members (62) and removable plates (26) arranged to close these said openings (25) after mounting of said springs (62).
PCT/FR2001/003999 2000-12-15 2001-12-14 Electronic switching apparatus for electrical installation Ceased WO2002049053A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002225079A AU2002225079A1 (en) 2000-12-15 2001-12-14 Electronic switching apparatus for electrical installation
GB0310408A GB2384626B (en) 2000-12-15 2001-12-14 Electrical switchgear for an electrical installation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0016357A FR2818434B1 (en) 2000-12-15 2000-12-15 ELECTRICAL SWITCHING APPARATUS FOR ELECTRICAL INSTALLATION
FR00/16357 2000-12-15

Publications (1)

Publication Number Publication Date
WO2002049053A1 true WO2002049053A1 (en) 2002-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2001/003999 Ceased WO2002049053A1 (en) 2000-12-15 2001-12-14 Electronic switching apparatus for electrical installation

Country Status (4)

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AU (1) AU2002225079A1 (en)
FR (1) FR2818434B1 (en)
GB (1) GB2384626B (en)
WO (1) WO2002049053A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710822A1 (en) * 2005-04-04 2006-10-11 Pronutec, S.A. Compact disconnector
DE102007023466A1 (en) * 2007-05-16 2008-11-20 Siemens Ag Switch-disconnector in strip design with fuses
WO2014068201A1 (en) * 2012-11-05 2014-05-08 Amc Etec Device for disconnecting an electrical supply line with a high-intensity current
DE102015204974B3 (en) * 2015-03-19 2016-02-04 Siemens Aktiengesellschaft Multi-pole switch, which is formed from several Polgehäusen
WO2017136103A1 (en) * 2016-02-04 2017-08-10 Cooper Technologies Company Fusible switch disconnect device for dc electrical power system
WO2018024531A1 (en) 2016-08-02 2018-02-08 Socomec Control module for modular electrical switching device and obtained modular electrical switching device
EP3690916A4 (en) * 2017-09-28 2020-11-04 Panasonic Intellectual Property Management Co., Ltd. Contact device and electromagnetic relay equipped with said contact device

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
FR2891395B1 (en) * 2005-09-28 2007-11-30 Socomec Sa Sa CUTTING MODULE FOR ELECTRICAL APPARATUS AND ELECTRIC APPARATUS EQUIPPED WITH SUCH A MODULE
FR2979746B1 (en) 2011-09-01 2016-07-01 Socomec Sa HIGH ELECTRODYNAMIC ELECTRICAL CUTTING APPARATUS
FR2979743B1 (en) 2011-09-01 2013-08-30 Socomec Sa MOBILE CONTACTOR CARRIER AND ELECTRICAL CLUTCH EQUIPPTION WITH SUCH TROLLEY
FR2979744B1 (en) 2011-09-01 2015-05-01 Socomec Sa ELECTRIC CUTTING APPARATUS WITH HIGH CLOSING POWER
DE102014107722B3 (en) * 2014-06-02 2015-09-03 Maschinenfabrik Reinhausen Gmbh Switch for a switching device, diverter switch of an on-load tap-changer and permanent main switch and disconnector for this purpose
CN119480509A (en) * 2023-08-10 2025-02-18 上海正泰智能科技有限公司 Switch units and rotary disconnect switches

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Publication number Priority date Publication date Assignee Title
GB880453A (en) * 1959-05-20 1961-10-25 Electroschaltgerate Grimma Veb Improvements in or relating to electric cam switches
EP0496213A1 (en) * 1991-01-25 1992-07-29 JEAN MÜLLER GmbH ELEKTROTECHNISCHE FABRIK Circuit breaker, in particular circuit breaker with fuse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB880453A (en) * 1959-05-20 1961-10-25 Electroschaltgerate Grimma Veb Improvements in or relating to electric cam switches
EP0496213A1 (en) * 1991-01-25 1992-07-29 JEAN MÜLLER GmbH ELEKTROTECHNISCHE FABRIK Circuit breaker, in particular circuit breaker with fuse

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710822A1 (en) * 2005-04-04 2006-10-11 Pronutec, S.A. Compact disconnector
DE102007023466A1 (en) * 2007-05-16 2008-11-20 Siemens Ag Switch-disconnector in strip design with fuses
WO2014068201A1 (en) * 2012-11-05 2014-05-08 Amc Etec Device for disconnecting an electrical supply line with a high-intensity current
FR2997788A1 (en) * 2012-11-05 2014-05-09 Amc Etec DEVICE FOR DISCONNECTING A HIGH INTENSITY CURRENT POWER SUPPLY LINE
US9679706B2 (en) 2012-11-05 2017-06-13 Amc Etec Device for disconnecting an electrical supply line with a high-intensity current
DE102015204974B3 (en) * 2015-03-19 2016-02-04 Siemens Aktiengesellschaft Multi-pole switch, which is formed from several Polgehäusen
WO2017136103A1 (en) * 2016-02-04 2017-08-10 Cooper Technologies Company Fusible switch disconnect device for dc electrical power system
US9842719B2 (en) 2016-02-04 2017-12-12 Cooper Technologies Company Fusible switch disconnect device for DC electrical power system
US10665413B2 (en) 2016-02-04 2020-05-26 Eaton Intelligent Power Limited Fusible switch disconnect device for DC electrical power system
WO2018024531A1 (en) 2016-08-02 2018-02-08 Socomec Control module for modular electrical switching device and obtained modular electrical switching device
FR3054925A1 (en) * 2016-08-02 2018-02-09 Socomec CONTROL MODULE FOR MODULAR ELECTRIC CUTTING APPARATUS AND MODULAR ELECTRIC CUTTING APPARATUS OBTAINED
US10629390B2 (en) 2016-08-02 2020-04-21 Socomec Control module for electrical switching devices
EP3690916A4 (en) * 2017-09-28 2020-11-04 Panasonic Intellectual Property Management Co., Ltd. Contact device and electromagnetic relay equipped with said contact device

Also Published As

Publication number Publication date
FR2818434B1 (en) 2003-07-04
GB2384626B (en) 2004-03-10
AU2002225079A1 (en) 2002-06-24
GB0310408D0 (en) 2003-06-11
GB2384626A (en) 2003-07-30
FR2818434A1 (en) 2002-06-21

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