EP0501885B1 - Circuit breaker - Google Patents

Circuit breaker Download PDF

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Publication number
EP0501885B1
EP0501885B1 EP92400503A EP92400503A EP0501885B1 EP 0501885 B1 EP0501885 B1 EP 0501885B1 EP 92400503 A EP92400503 A EP 92400503A EP 92400503 A EP92400503 A EP 92400503A EP 0501885 B1 EP0501885 B1 EP 0501885B1
Authority
EP
European Patent Office
Prior art keywords
module
anyone
casing
contact
housing
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.)
Expired - Lifetime
Application number
EP92400503A
Other languages
German (de)
French (fr)
Other versions
EP0501885A1 (en
Inventor
Christian Blanchard
Michel Lauraire
Didier Vigouroux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
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Filing date
Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0501885A1 publication Critical patent/EP0501885A1/en
Application granted granted Critical
Publication of EP0501885B1 publication Critical patent/EP0501885B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Definitions

  • the present invention relates to a current switching device according to the preamble of claim 1.
  • the object of the present invention is to provide a new arrangement of the breaking chamber envelope associated with a pair of contacts in order to obtain advantages both from an electrical point of view and from the point of view of the industrialization and mounting of the components.
  • the present invention provides a current interrupting device comprising, in a housing having a fixing base, at least one pole constituted by at least one contact carrier module comprising at least one bridge of movable contacts which cooperate with two fixed contacts each connected to a connection terminal by an electrical conductor, said apparatus further comprising at least one tripping mechanism capable of moving the bridge of movable contacts relative to the fixed contacts.
  • the device is characterized in that the housing forms, for each pole, a channel capable of receiving two removable closing drawers, made of insulating material, each supporting one of the two fixed contacts, and one of the two terminals connection, these two drawers being arranged on either side of the contact carrier module, and each comprising two side walls, and an upper bulkhead supporting on its internal face the fixed contacts, delimiting a breaking chamber with the carrier module contacts and the fixing base.
  • the invention makes it possible to obtain good insulation between phases (leak lines, breaking gas, etc.). It makes it possible to use arc blowing means (magnetic U, turns, etc.) by simply isolating them from the other elements of the phase on which they are placed and from the other phases.
  • the invention makes it possible to reduce the number of parts, in particular in the case of the use of arc blowing means. It makes it easier to mount the parts constituting the breaking chamber. It also allows easy assembly of the magnetothermal trip elements. It also allows easy mounting of a removable crew carrying the movable bridges. It makes it possible to produce a one-piece housing without an independent base, which provides good electrical insulation as well as good mechanical resistance.
  • each drawer has a transverse separating partition defining, on the side of the central part, the breaking chamber and, on the outside, a gas decompression chamber.
  • the two drawers associated with the same pole fit into two opposite channels of the housing, in translation movements in opposite directions.
  • each of the drawers has arc blowing means isolated between the drawer and at least one partition of the housing.
  • the conductor carried by a drawer has two arc blowing loops each pressed against a lateral face of the drawer opposite a partition in the housing and joining on a part carrying the fixed contact and positioned in the chamber of the drawer forming the breaking chamber.
  • the part of the conductor carrying the fixed contact is extended in the chamber of the drawer by a tab constituting the deflector on which the arcs develop.
  • the switch device illustrated in the drawings is a multi-pole protective device of the contactor-circuit breaker type. Alternatively, it could be unipolar.
  • the device comprises a one-piece housing 1 produced by molding in an electrically insulating material (plastic).
  • the bottom or mounting base 11 of this housing has a groove 12 cooperating with retractable clip elements to ensure the fixing, by snap-fastening, of the device on a standardized profile.
  • This bottom 11 has no opening.
  • the base 11 for fixing the housing is directly integral with external partitions 13 and internal isolation partitions 18. They constitute, two by two with the bottom 11, channels 14 or 15 delimiting the breaking chambers. These partitions 13 and 18 extend perpendicular to the bottom or flat base 11 and parallel to one another (in a direction marked QQ ′ in FIG. 3). Channels 14 and 15 are aligned along axes parallel to QQ 'and extend on either side of a plane PP'.
  • Each channel 14 or 15 cooperates respectively with a drawer 2 or 3 which, on the one hand, delimits the breaking chamber 23 or 33 respectively with the housing and which, on the other hand, carries a conductor 4 or 5 respectively.
  • Each pole of the device has two fixed contacts 41 and 51 and a bridge 63 of mobile contacts 61 and 62.
  • the mobile contacts 61, 62 move in translation relative to the fixed contacts, perpendicular to the line passing through these fixed contacts.
  • the plane of displacement and symmetry of the movable contacts is marked PP '.
  • Each fixed contact 41 or 51 of the same pole is carried by a drawer 2 or 3 respectively fitting into a channel 14 or 15 of the housing.
  • Each fixed contact 41 or 51 is formed on the conductor 4 or 5 respectively connecting it to a connection terminal 48 or 58 respectively.
  • Each terminal 48 or 58 is mounted on the drawer 2 or 3 and is intended to be connected to a power line.
  • the two drawers 2 and 3 of the same pole fit into the two opposite and aligned channels 14 and 15 respectively of the housing. These channels 14 and 15 of a pole open to the outside through two openings on the opposite sides of the housing. These two drawers 2 and 3 fit into the housing 1 by translational movements in opposite directions, towards the plane PP ', and parallel to a direction marked QQ' (FIG. 3), orthogonal to PP 'and parallel to the bottom of the housing.
  • the drawers 2 and 3 are, like the housing, made by molding in electrically insulating material (plastic).
  • the material of the drawers 2 and 3 may be different from the material of the housing 1.
  • Each of the drawers 2 or 3 has an upper deck 21 or 31 connected to two side walls 22 or 32 respectively. These walls provide in each drawer an internal chamber 23 or 33 respectively, forming a breaking chamber.
  • Each internal chamber 23 or 33 of the drawer 2 or 3 opens into the associated channel 14 or 15 on the side of the central part marked by the plane PP '.
  • the two side walls 22 or 32 and the upper deck 21 or 31 adjoining have a cross section (parallel to PP ') in the shape of a U.
  • the walls 22 or 32 of the same drawer are inserted between two partitions adjacent to the housing so as to be adjacent to them.
  • each drawer 2 or 3 Due to the U-shaped cross section of each drawer 2 or 3, the internal chamber 23 or 33 formed therein opens into the bottom of the corresponding channel.
  • Each drawer 2 or 3 has a transverse dividing partition 27 or 37 (parallel to PP ′) which delimits, on the side of the central part, the breaking chamber 23 or 33 and, on the outside, a gas decompression chamber 28 or 38 respectively.
  • the cut-off and decompression chambers communicate with each other.
  • Each drawer 2 or 3 has a transverse bottom 29 or 39 respectively, closing at least partially on the outside of the housing, on the one hand, the breaking chamber 23 or 33 and the adjoining decompression chamber 28 or 38 and, on the other hand, the corresponding channel of the housing.
  • the lower edges 221 and 321 of the side walls of the drawers bear on contours of the bottom of the housing.
  • the central edges 222 and 322 of the side walls of the drawers are, in the mounting position, spaced from one another and opposite so as to provide a space 16 allowing the mounting of a module 6 which will be described later.
  • the immobilization in translation of the drawers 2 and 3 relative to the housing and in the direction QQ ′ parallel to the bottom, is provided by stops. Immobilization of the drawer 3 in a direction perpendicular to the bottom 11 is ensured by stops made on the partitions of the housing. The immobilization of the drawer 2 in a direction perpendicular to the bottom 11 is ensured by a partition 171 of the housing. This partition 171 extends parallel to the bottom 11 and closes the channels 14 upwards. It separates the drawers 2 and their associated conductors 4 from the electromagnet 10 which will be described later.
  • the pads of the fixed contacts 41 and 51 are arranged on the conductors 4 and 5 on the side of the internal face of the bulkhead 21 or 31.
  • the fixed contacts 41 and 51 are positioned towards the central part while the connection terminals 48 or 58 are positioned on the sides of the housing.
  • Each conductor 4 or 5 has a central part 42 or 52 forming a tongue, joined by a bridge 44 or 54 with two lateral and parallel loops or branches 45 and 46 or 55 and 56 having a U shape and meeting with a conductive part 47 or 57 connected to terminal 48 or 58.
  • the U-shaped loops are open upwards, the base being considered in the low position.
  • the fixed contact pad 41 or 51 is disposed on the central part 42 or 52 and is oriented downwards.
  • This central part 42 or 52 carrying the fixed contact and positioned in the chamber of the drawer is extended in the chamber by a tab 421 or 521 constituting the deflecting conductor on which the arcs develop.
  • the bridge 44 or 54 joining the two loops and attached to its front face of the drawer is extended by a branch 43 or 53 respectively, folded or folded over the top of the drawer.
  • the two loops or branches 45, 46 or 55, 56 are pressed against the lateral faces of their respective drawers 2 and 3.
  • the conductive part 47 or 57 is arranged on top of the drawer.
  • the tongue 421 or 521 follows the profile of the internal chamber 23 or 33.
  • a metal deflector 49 is housed in the channels 14 and 15 delimiting the breaking chambers. This deflector 49 is positioned on the base 11 of the housing which forms the bottom of these channels and is held by the drawers 2 and 3.
  • the drawers 2 or 3 are separated respectively by spaces 24 or 34 adapted to the partitions 18.
  • the drawers 2 are joined by bridges 291 forming part of the bottom 29.
  • the drawers 3 are joined by bridges 391 forming part of the bottom 39.
  • the different drawers 2 or 3 located on the same side and belonging to different poles could be independent.
  • the mobile bridges 63 carrying the mobile contacts 61 and 62 are mounted on a contact carrier module 6 shown diagrammatically in FIG. 4.
  • the bridges 63 are placed between the fixed contacts and the bottom 11 of the housing.
  • the contact carrier module 6 comprises a mobile support 64 in which the contact bridges 63 and operating slides 65 are mounted. Each contact bridge 63 is housed sliding in a window 68 of the support 64. A contact compression spring 66 urges each associated bridge 63, upwards, in the closing direction of the contacts. As an indication, in the embodiment shown, the spring 66 is housed in the window. Each of the bridges 63 can be moved in the opening direction of the contacts by the associated slide 65.
  • This module comprises as many slides as there are poles.
  • the module 6 is introduced, according to the plane PP ', into a housing 16 of the housing formed between the partitions 13, between the drawers 2 and 3.
  • the support 64 has slots 67 into which the partitions 18 of the housing penetrate.
  • the movable support 64 can slide along the plane PP ', relative to the housing, being guided against the partitions of the housing.
  • the conductor 4 associated with the drawer 2 directly connects the fixed contact to the connection terminal 48.
  • the conductor 5 associated with the drawer 3 connects the fixed contact to the connection terminal 58 via a magnetic and / or thermal trip assembly 7, 8 ensuring protection against fault currents.
  • the trigger assembly 7, 8 carried by the slide 3 comprises a thermal trigger marked 7 and an electromagnetic trigger 8.
  • the thermal trip device 7 associated with each pole comprises a flat bimetallic strip 71 extending in a plane parallel to the plane QQ ′. By its foot, it is carried by the drawer 3 and has a free end 72.
  • a heater 73 isolated from the bimetallic strip. This heater is electrically connected by one end to the conductor 5 and by the other end to the free end of the bimetallic strip.
  • the free ends 72 of the triggers act on a differential system capable of actuating, via a mechanism 9, the slides 65 of the module 6.
  • the electromagnetic trip device 8 of each pole comprises a coil carcass 81 around which a control winding 82 is wound. It also comprises a movable plunger core sliding inside the coil carcass. A return spring is mounted between the core and the coil casing. The plunger core extends axially out of the coil carcass and acts on the mechanism 9 itself acting on the slides of the module 6.
  • the bridges of the module 6 can thus be moved following a fault detected by the magnetic and thermal trip assembly and this after triggering the lock 9 which will be discussed below.
  • the bridges of module 6 can also be moved by electrodynamic repulsion or by a control mechanism such as 91 which acts on the lock and the electromagnet.
  • the triggers 7 and 8 are housed between the partitions 18 of the housing and between each lateral partition 13 and the adjacent partition 18.
  • the planes of the bimetallic strips 71 are parallel to the partitions 18.
  • the lock release mechanism 9, common to all the poles, is arranged in a central housing 17 of relatively small thickness.
  • This mechanism 9 is coupled to a manual control and reset button 91 which is used for reset, closing and opening.
  • This button could be replaced by push buttons or rocker buttons depending on the type of lock 9.
  • An electromagnet 10 for driving the contactor housed in the housing 1 acts on the module 6.
  • This electromagnet comprises, in a manner known per se, a fixed magnetic circuit, a movable armature 101 and a coil connected to terminals by a switch. This last one is controllable in a manner known per se.
  • the movable armature 101 of the electromagnet is subject to a return spring and acts by means of a button 91 and / or another control.
  • the movable armature 101 of the electromagnet acts on a movable spreader 19, articulated around an axis 191 on the housing and actuating the movable support 64 of the module 6.
  • This spreader has fingers moving in lateral notches 69 of the support 64 to move it and operate the contacts.
  • the partitions 13 and 18 have slides 182 and 183 cooperating with bases of the triggers 7 and 8 to ensure the centering and the holding in position of these triggers 7 and 8. These means determine the positioning references of the triggers 7 and 8 with respect to to the housing.
  • a cover 93 covers the housing 1.
  • the drawers 3 have notches 36 which, when these drawers are recessed, are aligned with notches 181 of the partitions 131 or side partitions 13. Lugs 931 formed in the cover 93 engage in the notches to ensure keying immobilizing the drawers 3.
  • Drawer 2 can be keyed in the same way.
  • So-called “deionization” plates can be placed near the contacts to facilitate rapid interruption of the current. These plates can be mounted on the drawers or on the housing.
  • the thermal triggers 7 could be mounted on the drawers 2, the drawers 3 carrying the other triggers 8 (or 7).
  • Drawers 2 and 3 and the components associated with them are mounted separately. The drawers 2 and 3 mounted are then embedded in the channels of the housing 1.
  • blowing loops are insulated between the walls of the drawer and the partitions of the housing.
  • each of the two drawers could be embedded in the housing in a direction making an angle with the bottom of said housing.

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Description

La présente invention se rapporte à un appareil interrupteur de courant selon le préambule de la revendication 1.The present invention relates to a current switching device according to the preamble of claim 1.

Dans un appareil de ce genre, décrit dans le brevet EP -A-0 237 607, les contacts fixes et les bornes de raccordement sont fixées directement au boîtier.In an apparatus of this kind, described in patent EP -A-0 237 607, the fixed contacts and the connection terminals are fixed directly to the housing.

Dans d'autre appareils interrupteurs de courant, certains composants sont groupés dans des sous-ensembles se logeant dans le boîtier de base.In other current switching devices, certain components are grouped in sub-assemblies which are housed in the basic housing.

Ainsi dans les brevets EP -A-0 79818 et EP -A-0 79819, les contacts fixes et le pont mobile porte-contacts sont montés dans une cartouche isolante se logeant dans un logement de l'appareil. Cette cartouche est réalisée en deux parties assemblées l'une à l'autre et formant une chambre dans laquelle se logent des composants. Cette cartouche s'intègre dans le boîtier par une ouverture située du côté fond ou socle.Thus in patents EP -A-0 79818 and EP -A-0 79819, the fixed contacts and the movable contact-carrying bridge are mounted in an insulating cartridge being housed in a housing of the device. This cartridge is produced in two parts assembled together and forming a chamber in which house components. This cartridge fits into the housing through an opening located on the bottom or base side.

La présente invention a pour but de fournir un nouvel agencement d'enveloppe de chambre de coupure associée à une paire de contacts en vue d'obtenir des avantages tant sur le plan électrique que sur le plan de l'industrialisation et du montage des composants.The object of the present invention is to provide a new arrangement of the breaking chamber envelope associated with a pair of contacts in order to obtain advantages both from an electrical point of view and from the point of view of the industrialization and mounting of the components.

Pour parvenir à ces résultats, la présente invention propose un appareil interrupteur de courant comprenant, dans un boîtier présentant un fond fixation, au moins un pôle constitué par au moins un module porte-contacts comportant au moins un pont de contacts mobiles qui coopèrent avec deux contacts fixes reliés chacun à une borne de raccordement par un conducteur électrique, ledit appareil comprenant en outre au moins un mécanisme de déclenchement apte à déplacer le pont de contacts mobiles par rapport aux contacts fixes.To achieve these results, the present invention provides a current interrupting device comprising, in a housing having a fixing base, at least one pole constituted by at least one contact carrier module comprising at least one bridge of movable contacts which cooperate with two fixed contacts each connected to a connection terminal by an electrical conductor, said apparatus further comprising at least one tripping mechanism capable of moving the bridge of movable contacts relative to the fixed contacts.

Selon l'invention, l'appareil est caractérisé par le fait que le boîtier forme, pour chaque pôle, un canal apte à recevoir deux tiroirs de fermeture amovibles, en matériau isolant, supportant chacun un des deux contacts fixes, et une des deux bornes de raccordement, ces deux tiroirs étant disposés de part et d'autre du module porte-contacts, et comprenant chacun deux parois latérales, et un tablier supérieur supportant sur sa face interne les contacts fixes, délimitant une chambre de coupure avec le module porte-contacts et le fond de fixation.According to the invention, the device is characterized in that the housing forms, for each pole, a channel capable of receiving two removable closing drawers, made of insulating material, each supporting one of the two fixed contacts, and one of the two terminals connection, these two drawers being arranged on either side of the contact carrier module, and each comprising two side walls, and an upper bulkhead supporting on its internal face the fixed contacts, delimiting a breaking chamber with the carrier module contacts and the fixing base.

Sur le plan électrique, l'invention permet d'obtenir un bon isolement entre phases (lignes de fuites, gaz de coupure...). Elle permet d'utiliser des moyens de soufflage de l'arc (U magnétique, spires, etc...) en les isolant simplement par rapport aux autres éléments de la phase sur laquelle ils sont placés et par rapport aux autres phases.From an electrical point of view, the invention makes it possible to obtain good insulation between phases (leak lines, breaking gas, etc.). It makes it possible to use arc blowing means (magnetic U, turns, etc.) by simply isolating them from the other elements of the phase on which they are placed and from the other phases.

Elle permet d'utiliser un matériau isolant différent pour la chambre de coupure et pour le boîtier. Elle permet d'obtenir que la chambre de coupure associée à un pôle soit facilement isolée de la chambre de coupure d'un autre pôle.It allows the use of a different insulating material for the switching chamber and for the housing. It makes it possible to obtain that the breaking chamber associated with a pole is easily isolated from the breaking chamber of another pole.

Sur le plan de l'industrialisation et du montage des composants, l'invention permet de réduire le nombre de pièces, en particulier dans le cas de l'utilisation de moyens de soufflage d'arc. Elle permet de monter plus facilement des pièces constituant la chambre de coupure. Elle permet par ailleurs un montage aisé des éléments de déclenchement magnétothermique. Elle permet également un montage facile d'un équipage amovible portant les ponts mobiles. Elle permet de réaliser un boîtier monobloc sans socle indépendant, ce qui procure un bon isolement électrique ainsi qu'une bonne résistance mécanique.In terms of industrialization and assembly of components, the invention makes it possible to reduce the number of parts, in particular in the case of the use of arc blowing means. It makes it easier to mount the parts constituting the breaking chamber. It also allows easy assembly of the magnetothermal trip elements. It also allows easy mounting of a removable crew carrying the movable bridges. It makes it possible to produce a one-piece housing without an independent base, which provides good electrical insulation as well as good mechanical resistance.

Selon une caractéristique préférentielle, chaque tiroir présente une cloison séparatrice transversale délimitant, du côté de la partie centrale, la chambre de coupure et, du côté extérieur, une chambre de décompression des gaz.According to a preferred characteristic, each drawer has a transverse separating partition defining, on the side of the central part, the breaking chamber and, on the outside, a gas decompression chamber.

Selon une autre caractéristique préférentielle, les deux tiroirs associés à un même pôle s'encastrent dans deux canaux opposés du boîtier, selon des mouvements de translation de sens opposés.According to another preferred characteristic, the two drawers associated with the same pole fit into two opposite channels of the housing, in translation movements in opposite directions.

Selon une autre caractéristique préférentielle, chacun des tiroirs présente des moyens de soufflage d'arc isolés entre le tiroir et au moins une cloison du boîtier.According to another preferred characteristic, each of the drawers has arc blowing means isolated between the drawer and at least one partition of the housing.

Selon une autre caractéristique préférentielle, le conducteur porté par un tiroir présente deux boucles de soufflage d'arc plaquées chacune contre une face latérale du tiroir en vis-à-vis d'une cloison du boîtier et se rejoignant sur une partie portant le contact fixe et positionnée dans la chambre du tiroir formant la chambre de coupure.According to another preferred characteristic, the conductor carried by a drawer has two arc blowing loops each pressed against a lateral face of the drawer opposite a partition in the housing and joining on a part carrying the fixed contact and positioned in the chamber of the drawer forming the breaking chamber.

Selon une autre caractéristique préférentielle, la partie du conducteur portant le contact fixe se prolonge dans la chambre du tiroir par une languette constituant le déflecteur sur lequel les arcs se développent.According to another preferred characteristic, the part of the conductor carrying the fixed contact is extended in the chamber of the drawer by a tab constituting the deflector on which the arcs develop.

L'invention va maintenant être décrite avec plus de détails en se référant à des modes de réalisation donnés à titre d'exemple et représentés par les dessins annexés sur lesquels :

  • La figure 1 est une vue éclatée et en coupe, selon un plan passant par l'axe de translation des contacts mobiles, de l'appareil selon un mode de réalisation de l'invention ;
  • La figure 2 est une vue en coupe, selon le même plan de coupe que celui de la figure 1, de l'appareil monté ;
  • La figure 3 est une vue de dessus éclatée montrant le boîtier et les tiroirs constitutifs de l'appareil ;
  • La figure 4 est une vue en perspective de l'équipage porte-contacts mobiles ;
  • La figure 5 est une vue de dessus partielle montrant l'équipage de la figure 4 incorporé dans le boîtier ;
  • La figure 6 est une vue en perspective de la pièce conductrice reliant la pastille du contact fixe à une borne et se montant sur un tiroir se logeant dans le boîtier de l'appareil ;
  • La figure 7 est une vue en perspective de la pièce conductrice de la figure 6 montée sur le tiroir associé.
The invention will now be described in more detail with reference to embodiments given by way of example and represented by the appended drawings in which:
  • Figure 1 is an exploded view in section, along a plane passing through the axis of translation of the movable contacts, of the apparatus according to an embodiment of the invention;
  • Figure 2 is a sectional view, along the same section plane as that of Figure 1, of the mounted device;
  • Figure 3 is an exploded top view showing the housing and the drawers of the device;
  • Figure 4 is a perspective view of the moving contact carrier assembly;
  • Figure 5 is a partial top view showing the crew of Figure 4 incorporated in the housing;
  • Figure 6 is a perspective view of the conductive part connecting the patch of the fixed contact to a terminal and mounted on a drawer housed in the housing of the device;
  • Figure 7 is a perspective view of the conductive part of Figure 6 mounted on the associated drawer.

L'appareil interrupteur illustré par les dessins est un appareil de protection multipolaire du type contacteur-disjoncteur. En variante, il pourrait être unipolaire.The switch device illustrated in the drawings is a multi-pole protective device of the contactor-circuit breaker type. Alternatively, it could be unipolar.

L'appareil comprend un boîtier monobloc 1 réalisé par moulage en matériau électriquement isolant (plastique). Le fond ou socle de fixation 11 de ce boîtier présente une rainure 12 coopérant avec des éléments de clipsage escamotables pour assurer la fixation, par encliquetage, de l'appareil sur un profilé normalisé. Ce fond 11 ne comporte aucune ouverture.The device comprises a one-piece housing 1 produced by molding in an electrically insulating material (plastic). The bottom or mounting base 11 of this housing has a groove 12 cooperating with retractable clip elements to ensure the fixing, by snap-fastening, of the device on a standardized profile. This bottom 11 has no opening.

Le socle 11 de fixation du boîtier est directement solidaire de cloisons extérieures 13 et de cloisons intérieures d'isolement 18. Elles constituent, deux à deux avec le fond 11, des canaux 14 ou 15 délimitant les chambres de coupure. Ces cloisons 13 et 18 s'étendent perpendiculairement au fond ou socle plat 11 et parallèlement entre elles (selon une direction repérée QQ′ sur la figure 3). Les canaux 14 et 15 sont alignés selon des axes parallèles à QQ' et s'étendent de part et d'autre d'un plan PP'.The base 11 for fixing the housing is directly integral with external partitions 13 and internal isolation partitions 18. They constitute, two by two with the bottom 11, channels 14 or 15 delimiting the breaking chambers. These partitions 13 and 18 extend perpendicular to the bottom or flat base 11 and parallel to one another (in a direction marked QQ ′ in FIG. 3). Channels 14 and 15 are aligned along axes parallel to QQ 'and extend on either side of a plane PP'.

Chaque canal 14 ou 15 coopère respectivement avec un tiroir 2 ou 3 qui, d'une part, délimite la chambre de coupure 23 ou 33 respectivement avec le boîtier et qui, d'autre part, porte un conducteur 4 ou 5 respectivement.Each channel 14 or 15 cooperates respectively with a drawer 2 or 3 which, on the one hand, delimits the breaking chamber 23 or 33 respectively with the housing and which, on the other hand, carries a conductor 4 or 5 respectively.

Chaque pôle de l'appareil comporte deux contacts fixes 41 et 51 et un pont 63 de contacts mobiles 61 et 62. Les contacts mobiles 61, 62 se déplacent en translation par rapport aux contacts fixes, perpendiculairement à la ligne passant par ces contacts fixes. Le plan de déplacement et de symétrie des contacts mobiles est repéré PP'.Each pole of the device has two fixed contacts 41 and 51 and a bridge 63 of mobile contacts 61 and 62. The mobile contacts 61, 62 move in translation relative to the fixed contacts, perpendicular to the line passing through these fixed contacts. The plane of displacement and symmetry of the movable contacts is marked PP '.

Chaque contact fixe 41 ou 51 d'un même pôle est porté par un tiroir 2 ou 3 respectivement s'encastrant dans un canal 14 ou 15 du boîtier.Each fixed contact 41 or 51 of the same pole is carried by a drawer 2 or 3 respectively fitting into a channel 14 or 15 of the housing.

Chaque contact fixe 41 ou 51 est formé sur le conducteur 4 ou 5 respectivement le reliant à une borne de raccordement 48 ou 58 respectivement. Chaque borne 48 ou 58 est montée sur le tiroir 2 ou 3 et est destinée à être connectée à une ligne de puissance.Each fixed contact 41 or 51 is formed on the conductor 4 or 5 respectively connecting it to a connection terminal 48 or 58 respectively. Each terminal 48 or 58 is mounted on the drawer 2 or 3 and is intended to be connected to a power line.

Les deux tiroirs 2 et 3 d'un même pôle s'encastrent dans les deux canaux opposés et alignés 14 et 15 respectivement du boîtier. Ces canaux 14 et 15 d'un pôle débouchent sur l'extérieur par deux ouvertures ménagées sur les côtés opposés du boîtier. Ces deux tiroirs 2 et 3 s'encastrent dans le boîtier 1 par des mouvements de translation de sens opposés, vers le plan PP', et parallèles à une direction repérée QQ' (figure 3), orthogonale à PP' et parallèle au fond du boîtier.The two drawers 2 and 3 of the same pole fit into the two opposite and aligned channels 14 and 15 respectively of the housing. These channels 14 and 15 of a pole open to the outside through two openings on the opposite sides of the housing. These two drawers 2 and 3 fit into the housing 1 by translational movements in opposite directions, towards the plane PP ', and parallel to a direction marked QQ' (FIG. 3), orthogonal to PP 'and parallel to the bottom of the housing.

Les tiroirs 2 et 3 sont, comme le boîtier, réalisés par moulage en matériau électriquement isolant (plastique). Le matériau constitutif des tiroirs 2 et 3 peut être différent du matériau constitutif du boîtier 1.The drawers 2 and 3 are, like the housing, made by molding in electrically insulating material (plastic). The material of the drawers 2 and 3 may be different from the material of the housing 1.

Chacun des tiroirs 2 ou 3 présente un tablier supérieur 21 ou 31 raccordé à deux parois latérales 22 ou 32 respectivement. Ces parois ménagent dans chaque tiroir une chambre interne 23 ou 33 respectivement, formant chambre de coupure.Each of the drawers 2 or 3 has an upper deck 21 or 31 connected to two side walls 22 or 32 respectively. These walls provide in each drawer an internal chamber 23 or 33 respectively, forming a breaking chamber.

Après montage, l'ensemble des tiroirs 2 et 3 et du boîtier 1 forme une chambre de coupure fermée.After assembly, all of the drawers 2 and 3 and of the housing 1 form a closed breaking chamber.

Chaque chambre interne 23 ou 33 du tiroir 2 ou 3 débouche dans le canal associé 14 ou 15 du côté de la partie centrale repérée par le plan PP'.Each internal chamber 23 or 33 of the drawer 2 or 3 opens into the associated channel 14 or 15 on the side of the central part marked by the plane PP '.

Les deux parois latérales 22 ou 32 et le tablier supérieur 21 ou 31 attenant ont une section transversale (parallèlement à PP') en forme de U.The two side walls 22 or 32 and the upper deck 21 or 31 adjoining have a cross section (parallel to PP ') in the shape of a U.

Les parois 22 ou 32 d'un même tiroir s'insèrent entre deux cloisons voisines du boîtier de manière à leur être adjacentes.The walls 22 or 32 of the same drawer are inserted between two partitions adjacent to the housing so as to be adjacent to them.

Du fait de la section transversale en U de chaque tiroir 2 ou 3, la chambre interne 23 ou 33 ménagée dans celui-ci débouche dans le fond du canal correspondant.Due to the U-shaped cross section of each drawer 2 or 3, the internal chamber 23 or 33 formed therein opens into the bottom of the corresponding channel.

Chaque tiroir 2 ou 3 présente une cloison séparatrice transversale 27 ou 37 (parallèle à PP') qui délimite, du côté de la partie centrale, la chambre de coupure 23 ou 33 et, du côté extérieur, une chambre de décompression des gaz 28 ou 38 respectivement. Les chambres de coupure et de décompression communiquent l'une avec l'autre.Each drawer 2 or 3 has a transverse dividing partition 27 or 37 (parallel to PP ′) which delimits, on the side of the central part, the breaking chamber 23 or 33 and, on the outside, a gas decompression chamber 28 or 38 respectively. The cut-off and decompression chambers communicate with each other.

Chaque tiroir 2 ou 3 présente un fond transversal 29 ou 39 respectivement, fermant au moins partiellement du côté extérieur du boîtier, d'une part, la chambre de coupure 23 ou 33 et la chambre de décompression attenante 28 ou 38 et, d'autre part, le canal correspondant du boîtier.Each drawer 2 or 3 has a transverse bottom 29 or 39 respectively, closing at least partially on the outside of the housing, on the one hand, the breaking chamber 23 or 33 and the adjoining decompression chamber 28 or 38 and, on the other hand, the corresponding channel of the housing.

Les bords inférieurs 221 et 321 des parois latérales des tiroirs portent sur des contours du fond du boîtier. Les bords centraux 222 et 322 des parois latérales des tiroirs sont, en position de montage, espacés l'un de l'autre et en vis-à-vis de manière à ménager un espace 16 permettant le montage d'un module 6 qui sera décrit plus loin.The lower edges 221 and 321 of the side walls of the drawers bear on contours of the bottom of the housing. The central edges 222 and 322 of the side walls of the drawers are, in the mounting position, spaced from one another and opposite so as to provide a space 16 allowing the mounting of a module 6 which will be described later.

L'immobilisation en translation des tiroirs 2 et 3 relativement au boîtier et selon la direction QQ′ parallèle au fond, est assurée par des butées. L'immobilisation du tiroir 3 selon une direction perpendiculaire au fond 11 est assurée par des butées ménagées sur les cloisons du boîtier. L'immobilisation du tiroir 2 selon une direction perpendiculaire au fond 11 est assurée par une cloison 171 du boîtier. Cette cloison 171 s'étend parallèlement au fond 11 et ferme les canaux 14 vers le haut. Elle sépare les tiroirs 2 et leurs conducteurs associés 4 de l'électroaimant 10 qui sera décrit plus loin.The immobilization in translation of the drawers 2 and 3 relative to the housing and in the direction QQ ′ parallel to the bottom, is provided by stops. Immobilization of the drawer 3 in a direction perpendicular to the bottom 11 is ensured by stops made on the partitions of the housing. The immobilization of the drawer 2 in a direction perpendicular to the bottom 11 is ensured by a partition 171 of the housing. This partition 171 extends parallel to the bottom 11 and closes the channels 14 upwards. It separates the drawers 2 and their associated conductors 4 from the electromagnet 10 which will be described later.

Les pastilles des contacts fixes 41 et 51 sont disposées sur les conducteurs 4 et 5 du côté de la face interne du tablier 21 ou 31.The pads of the fixed contacts 41 and 51 are arranged on the conductors 4 and 5 on the side of the internal face of the bulkhead 21 or 31.

Les contacts fixes 41 et 51 se positionnent vers la partie centrale tandis que les bornes de raccordement 48 ou 58 se positionnent sur les côtés du boîtier.The fixed contacts 41 and 51 are positioned towards the central part while the connection terminals 48 or 58 are positioned on the sides of the housing.

Chaque conducteur 4 ou 5 présente une partie centrale 42 ou 52 formant languette, réunie par un pont 44 ou 54 à deux boucles ou branches latérales et parallèles 45 et 46 ou 55 et 56 ayant une forme en U et se réunissant à une partie conductrice 47 ou 57 raccordée à la borne 48 ou 58. Les boucles en U sont ouvertes vers le haut, le socle étant considéré en position basse. La pastille de contact fixe 41 ou 51 est disposée sur la partie centrale 42 ou 52 et est orientée vers le bas. Cette partie centrale 42 ou 52 portant le contact fixe et positionnée dans la chambre du tiroir se prolonge dans la chambre par une languette 421 ou 521 constituant le conducteur déflecteur sur lequel les arcs se développent.Each conductor 4 or 5 has a central part 42 or 52 forming a tongue, joined by a bridge 44 or 54 with two lateral and parallel loops or branches 45 and 46 or 55 and 56 having a U shape and meeting with a conductive part 47 or 57 connected to terminal 48 or 58. The U-shaped loops are open upwards, the base being considered in the low position. The fixed contact pad 41 or 51 is disposed on the central part 42 or 52 and is oriented downwards. This central part 42 or 52 carrying the fixed contact and positioned in the chamber of the drawer is extended in the chamber by a tab 421 or 521 constituting the deflecting conductor on which the arcs develop.

Le pont 44 ou 54 réunissant les deux boucles et accolé à sa face avant du tiroir se prolonge par une branche 43 ou 53 respectivement, repliée ou rabattue sur le dessus du tiroir.The bridge 44 or 54 joining the two loops and attached to its front face of the drawer is extended by a branch 43 or 53 respectively, folded or folded over the top of the drawer.

Les deux boucles ou branches 45, 46 ou 55, 56 sont plaquées contre les faces latérales de leurs tiroirs respectifs 2 et 3. La partie conductrice 47 ou 57 est disposée sur le dessus du tiroir. La languette 421 ou 521 suit le profil de la chambre interne 23 ou 33.The two loops or branches 45, 46 or 55, 56 are pressed against the lateral faces of their respective drawers 2 and 3. The conductive part 47 or 57 is arranged on top of the drawer. The tongue 421 or 521 follows the profile of the internal chamber 23 or 33.

Un déflecteur métallique 49 est logé dans les canaux 14 et 15 délimitant les chambres de coupure. Ce déflecteur 49 est positionné sur le socle 11 du boîtier qui forme le fond de ces canaux et est maintenu par les tiroirs 2 et 3.A metal deflector 49 is housed in the channels 14 and 15 delimiting the breaking chambers. This deflector 49 is positioned on the base 11 of the housing which forms the bottom of these channels and is held by the drawers 2 and 3.

Les tiroirs 2 ou 3 sont séparés respectivement par des espaces 24 ou 34 adaptés aux cloisons 18.The drawers 2 or 3 are separated respectively by spaces 24 or 34 adapted to the partitions 18.

Les différents tiroirs adjacents 2 situés d'un même côté du plan PP' sont réunis les uns aux autres de manière à former un ensemble monobloc. De même, les différents tiroirs 3 situés d'un même côté du plan PP' sont réunis les uns aux autres de manière à former un ensemble monobloc.The various adjacent drawers 2 located on the same side of the plane PP 'are joined to each other so as to form a single unit. Similarly, the different drawers 3 located on the same side of the plane PP 'are joined to each other so as to form a single unit.

Les tiroirs 2 sont réunis par des pontages 291 faisant partie du fond 29. De même, les tiroirs 3 sont réunis par des pontages 391 faisant partie du fond 39.The drawers 2 are joined by bridges 291 forming part of the bottom 29. Likewise, the drawers 3 are joined by bridges 391 forming part of the bottom 39.

En variante, les différents tiroirs 2 ou 3 situés d'un même côté et appartenant à des pôles différents pourraient être indépendants.Alternatively, the different drawers 2 or 3 located on the same side and belonging to different poles could be independent.

Les ponts mobiles 63 portant les contacts mobiles 61 et 62 sont montés sur un module porte-contacts 6 représenté schématiquement à la figure 4.The mobile bridges 63 carrying the mobile contacts 61 and 62 are mounted on a contact carrier module 6 shown diagrammatically in FIG. 4.

Les ponts 63 se placent entre les contacts fixes et le fond 11 du boîtier.The bridges 63 are placed between the fixed contacts and the bottom 11 of the housing.

Le module porte-contacts 6 comprend un support mobile 64 dans lequel sont montés les ponts de contact 63 et des coulisseaux de manoeuvre 65. Chaque pont de contact 63 est logé coulissant dans une fenêtre 68 du support 64. Un ressort 66 de compression des contacts sollicite chaque pont 63 associé, vers le haut, dans le sens de fermeture des contacts. A titre indicatif, dans le mode de réalisation représenté, le ressort 66 est logé dans la fenêtre. Chacun des ponts 63 peut être déplacé dans le sens d'ouverture des contacts par le coulisseau associé 65. Ce module comporte autant de coulisseaux qu'il y a de pôles.The contact carrier module 6 comprises a mobile support 64 in which the contact bridges 63 and operating slides 65 are mounted. Each contact bridge 63 is housed sliding in a window 68 of the support 64. A contact compression spring 66 urges each associated bridge 63, upwards, in the closing direction of the contacts. As an indication, in the embodiment shown, the spring 66 is housed in the window. Each of the bridges 63 can be moved in the opening direction of the contacts by the associated slide 65. This module comprises as many slides as there are poles.

Le module 6 s'introduit, selon le plan PP', dans un logement 16 du boîtier formé entre les cloisons 13, entre les tiroirs 2 et 3. Le support 64 présente des fentes 67 dans lesquelles pénètrent les cloisons 18 du boîtier. Le support mobile 64 peut coulisser selon le plan PP', par rapport au boîtier, en étant guidé contre les cloisons du boîtier.The module 6 is introduced, according to the plane PP ', into a housing 16 of the housing formed between the partitions 13, between the drawers 2 and 3. The support 64 has slots 67 into which the partitions 18 of the housing penetrate. The movable support 64 can slide along the plane PP ', relative to the housing, being guided against the partitions of the housing.

Le conducteur 4 associé au tiroir 2 relie directement le contact fixe à la borne de raccordement 48. Le conducteur 5 associé au tiroir 3 relie le contact fixe à la borne de raccordement 58 via un ensemble de déclenchement magnétique et/ou thermique 7, 8 assurant la protection contre les courants de défaut.The conductor 4 associated with the drawer 2 directly connects the fixed contact to the connection terminal 48. The conductor 5 associated with the drawer 3 connects the fixed contact to the connection terminal 58 via a magnetic and / or thermal trip assembly 7, 8 ensuring protection against fault currents.

L'ensemble de déclenchement 7, 8 porté par le tiroir 3 comprend un déclencheur thermique repéré 7 et un déclencheur électromagnétique 8.The trigger assembly 7, 8 carried by the slide 3 comprises a thermal trigger marked 7 and an electromagnetic trigger 8.

Le déclencheur thermique 7 associé à chaque pôle comprend un bilame plat 71 s'étendant dans un plan parallèle au plan QQ′. Par son pied, il est porté par le tiroir 3 et présente une extrémité libre 72. Autour du bilame est enroulée une chaufferette 73 isolée du bilame. Cette chaufferette est reliée électriquement par une extrémité au conducteur 5 et par l'autre extrémité à l'extrémité libre du bilame. Les extrémités libres 72 des déclencheurs agissent sur un système différentiel susceptible d'actionner par l'intermédiaire d'un mécanisme 9, les coulisseaux 65 du module 6.The thermal trip device 7 associated with each pole comprises a flat bimetallic strip 71 extending in a plane parallel to the plane QQ ′. By its foot, it is carried by the drawer 3 and has a free end 72. Around the bimetallic strip is wound a heater 73 isolated from the bimetallic strip. This heater is electrically connected by one end to the conductor 5 and by the other end to the free end of the bimetallic strip. The free ends 72 of the triggers act on a differential system capable of actuating, via a mechanism 9, the slides 65 of the module 6.

Le déclencheur électromagnétique 8 de chaque pôle comporte une carcasse bobine 81 autour de laquelle est enroulé un bobinage de commande 82. Il comporte également un noyau mobile plongeur coulissant à l'intérieur de la carcasse bobine. Un ressort de rappel est monté entre le noyau et la carcasse bobine. Le noyau plongeur se prolonge axialement hors de la carcasse bobine et agit sur le mécanisme 9 agissant lui-même sur les coulisseaux du module 6.The electromagnetic trip device 8 of each pole comprises a coil carcass 81 around which a control winding 82 is wound. It also comprises a movable plunger core sliding inside the coil carcass. A return spring is mounted between the core and the coil casing. The plunger core extends axially out of the coil carcass and acts on the mechanism 9 itself acting on the slides of the module 6.

Les ponts du module 6 peuvent ainsi être déplacés suite à un défaut détecté par l'ensemble de déclenchement magnétique et thermique et ce après déclenchement de la serrure 9 dont il sera question plus loin. Les ponts du module 6 peuvent également être déplacés par répulsion électrodynamique ou par un mécanisme de commande tel que 91 qui agit sur la serrure et l'électroaimant.The bridges of the module 6 can thus be moved following a fault detected by the magnetic and thermal trip assembly and this after triggering the lock 9 which will be discussed below. The bridges of module 6 can also be moved by electrodynamic repulsion or by a control mechanism such as 91 which acts on the lock and the electromagnet.

Les déclencheurs 7 et 8 se logent entre les cloisons 18 du boîtier et entre chaque cloison latérale 13 et la cloison 18 voisine. Les plans des bilames 71 sont parallèles aux cloisons 18.The triggers 7 and 8 are housed between the partitions 18 of the housing and between each lateral partition 13 and the adjacent partition 18. The planes of the bimetallic strips 71 are parallel to the partitions 18.

Le mécanisme de déclenchement à serrure 9, commun à l'ensemble des pôles, est disposé dans un logement central 17 d'épaisseur relativement faible. Ce mécanisme 9 est accouplé à un bouton de commande manuelle et de réarmement 91 qui sert au réarmement, à la fermeture et à l'ouverture. Ce bouton pourrait être remplacé par des boutons poussoirs ou des boutons basculants suivant le type de la serrure 9.The lock release mechanism 9, common to all the poles, is arranged in a central housing 17 of relatively small thickness. This mechanism 9 is coupled to a manual control and reset button 91 which is used for reset, closing and opening. This button could be replaced by push buttons or rocker buttons depending on the type of lock 9.

Un électroaimant 10 d'entraînement du contacteur se logeant dans le boîtier 1 agit sur le module 6. Cet électroaimant comprend de manière connue en soi, un circuit magnétique fixe, une armature mobile 101 et une bobine reliée à des bornes par un interrupteur. Ce dernier est commandable de manière connue en soi. L'armature mobile 101 de l'électroaimant est assujettie à un ressort de rappel et agit par l'intermédiaire d'un bouton 91 et/ou d'une autre commande.An electromagnet 10 for driving the contactor housed in the housing 1 acts on the module 6. This electromagnet comprises, in a manner known per se, a fixed magnetic circuit, a movable armature 101 and a coil connected to terminals by a switch. This last one is controllable in a manner known per se. The movable armature 101 of the electromagnet is subject to a return spring and acts by means of a button 91 and / or another control.

L'armature mobile 101 de l'électroaimant agit sur un palonnier mobile 19, articulé autour d'un axe 191 sur le boîtier et actionnant le support mobile 64 du module 6. Ce palonnier présente des doigts se déplaçant dans des échancrures latérales 69 du support 64 pour le déplacer et manoeuvrer les contacts.The movable armature 101 of the electromagnet acts on a movable spreader 19, articulated around an axis 191 on the housing and actuating the movable support 64 of the module 6. This spreader has fingers moving in lateral notches 69 of the support 64 to move it and operate the contacts.

Les cloisons 13 et 18 présentent des glissières 182 et 183 coopérant avec des embases des déclencheurs 7 et 8 pour assurer le centrage et le maintien en position de ces déclencheurs 7 et 8. Ces moyens déterminent les références de positionnement des déclencheurs 7 et 8 par rapport au boîtier.The partitions 13 and 18 have slides 182 and 183 cooperating with bases of the triggers 7 and 8 to ensure the centering and the holding in position of these triggers 7 and 8. These means determine the positioning references of the triggers 7 and 8 with respect to to the housing.

Un couvercle 93 coiffe le boîtier 1.A cover 93 covers the housing 1.

Les tiroirs 3 présentent des entailles 36 qui, lorsque ces tiroirs sont encastrés, sont alignées avec des entailles 181 des cloisons 131 ou des cloisons latérales 13. Des ergots 931 ménagés dans le couvercle 93 s'engagent dans les entailles pour assurer un clavetage immobilisant les tiroirs 3. Le tiroir 2 peut être claveté de la même manière.The drawers 3 have notches 36 which, when these drawers are recessed, are aligned with notches 181 of the partitions 131 or side partitions 13. Lugs 931 formed in the cover 93 engage in the notches to ensure keying immobilizing the drawers 3. Drawer 2 can be keyed in the same way.

Des plaquettes dites "de désionisation" peuvent être disposées à proximité des contacts pour faciliter l'interruption rapide du courant. Ces plaquettes peuvent être montées sur les tiroirs ou sur le boîtier.So-called "deionization" plates can be placed near the contacts to facilitate rapid interruption of the current. These plates can be mounted on the drawers or on the housing.

En variante, les déclencheurs thermiques 7 (ou les déclencheurs électromagnétiques 8) pourraient être montés sur les tiroirs 2, les tiroirs 3 portant les autres déclencheurs 8 (ou 7).Alternatively, the thermal triggers 7 (or the electromagnetic triggers 8) could be mounted on the drawers 2, the drawers 3 carrying the other triggers 8 (or 7).

Le fonctionnement de l'appareil va maintenant être décrit.The operation of the apparatus will now be described.

Les tiroirs 2 et 3 et les composants qui leur sont associés sont montés séparément. Les tiroirs 2 et 3 montés sont ensuite encastrés dans les canaux du boîtier 1.Drawers 2 and 3 and the components associated with them are mounted separately. The drawers 2 and 3 mounted are then embedded in the channels of the housing 1.

Au moment de l'ouverture des contacts, sous tension, les contacts mobiles descendent et s'éloignent des contacts fixes. Un arc se crée entre les contacts. Lorsque le courant de court-circuit circule de la borne 48 à la borne 58 en traversant les conducteurs 47, 45 et 46, 44, 42, 43, l'arc, le déflecteur 49 et les éléments correspondants associés au tiroir 3, les boucles conductrices 45, 46 créent dans la zone traversée par l'arc et la région avoisinante, une induction de direction perpendiculaire au plan des figures 1 et 2.When the contacts open, under voltage, the movable contacts descend and move away from the fixed contacts. An arc is created between the contacts. When the short-circuit current flows from terminal 48 to terminal 58 through conductors 47, 45 and 46, 44, 42, 43, the arc, the deflector 49 and the corresponding elements associated with drawer 3, the loops conductive 45, 46 create in the area crossed by the arc and the surrounding region, a direction induction perpendicular to the plane of Figures 1 and 2.

L'interaction de cette induction et du courant passant par l'arc communique à celui-ci des forces de Laplace provoquant un déplacement de l'arc ainsi qu'un allongement de sa colonne.The interaction of this induction and the current passing through the arc communicates to it Laplace forces causing a displacement of the arc as well as an elongation of its column.

Les boucles de soufflage sont isolées entre les parois du tiroir et les cloisons du boîtier.The blowing loops are insulated between the walls of the drawer and the partitions of the housing.

Des modifications peuvent être apportées au mode de réalisation décrit, sans sortir du cadre de l'invention telle que revendiquée.Modifications can be made to the embodiment described, without departing from the scope of the invention as claimed.

En variante, chacun des deux tiroirs pourrait être encastré dans le boîtier selon une direction faisant un angle avec le fond dudit boîtier.Alternatively, each of the two drawers could be embedded in the housing in a direction making an angle with the bottom of said housing.

Claims (10)

  1. A switch device comprising a casing (1) having a fixing base (11), at least a pole formed by at least one contact-holder module (6) comprising at least a bridge (63) carrying mobile contacts (61, 62) which cooperate with two fixed contacts (41, 51) each connected to a connecting terminal (48, 58) by an electrical conductor (4, 5), and at least a tripping mechanism (7, 8, 10) adapted to move the mobile contact bridge (63) with respect to the fixed contacts (41, 51),
    characterized by the fact that the casing (1) forms for each pole a channel (14, 15) adapted to receive two movible closing modules (2, 3) made of an insulative material and each carrying one of the two fixed contacts (41, 51) and one of the two connecting terminals (48, 58), said two modules (2, 3) being disposed on either side of the contact-holder module (6) and each comprising two side walls (22, 32) and an upper apron (21, 31) carrying on its inner face the fixed contacts (41, 51) and delimiting a switching chamber (23, 33) with the contact-holder module (6) and the fixing base (11).
  2. Device according to claim 1,
    characterized in that the fixing base (11) is fast with insulative walls (13, 18) forming a plurality of parallel channels (14, 15), and that a plurality of modules (2, 3) each have walls (22 or 32) defining an internal chamber (23 or 33) forming a switching chamber and inserted between two neighbouring walls of the casing so as to be adjacent thereto.
  3. Device according to anyone of the preceding claims,
    characterized in that each of the modules (2 or 3) comprises arc extinguisher means (45, 46 or 55, 56) insulated between said module (2 or 3) and at least one wall (13, 18) of said casing (1).
  4. Device according to anyone of the preceding claims,
    characterized in that said conductor (4 or 5) carried by a module (2 or 3) has two arc extinguisher loops (45, 46 or 55, 56) each pressed against one side surface of the module (2 or 3) facing a wall (18) of the casing (1) and joined together by a part (42) carrying said fixed contact (41 or 51) and positioned in said chamber (23, 33) of said module forming said switching chamber.
  5. Device according to anyone of the preceding claims,
    characterized in that the part (42 or 52) of said conductor carrying said fixed contact (41 or 51) is extended within said chamber (23, 33) of said module by a tongue (421 or 521) constituting the deflector on which arcing occurs.
  6. Device according to anyone of the preceding claims,
    characterized in that a module (3) associated with a pole carries a magnetic and/or thermal tripping assembly (7, 8).
  7. Device according to anyone of the preceding claims,
    characterized in that, for each pole, it comprises a metal deflector (49) on the base (11) of said casing which forms the bottom of said channels (14, 15).
  8. Device according to anyone of the preceding claims,
    characterized in that the walls of said casing (1) comprise means (182, 185) for centering and positioning each module-mounted tripping assembly (7, 8).
  9. Device according to anyone of the preceding claims,
    characterized in that said two modules (2, 3) associated with the same pole are inserted in two opposite channels (14, 15) of said casing (1) by movement in translation in opposite directions.
  10. Device according to anyone of the preceding claims,
    characterized in that said contact-holder module (6) comprises a support (64) actuated by a solenoid (10) and plungers (65) for operating the contact bridges (63) actuated by a mechanism (9).
EP92400503A 1991-02-28 1992-02-27 Circuit breaker Expired - Lifetime EP0501885B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102395 1991-02-28
FR9102395A FR2673486B1 (en) 1991-02-28 1991-02-28 CURRENT SWITCHING APPARATUS.

Publications (2)

Publication Number Publication Date
EP0501885A1 EP0501885A1 (en) 1992-09-02
EP0501885B1 true EP0501885B1 (en) 1996-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400503A Expired - Lifetime EP0501885B1 (en) 1991-02-28 1992-02-27 Circuit breaker

Country Status (4)

Country Link
US (1) US5218332A (en)
EP (1) EP0501885B1 (en)
DE (1) DE69207929D1 (en)
FR (1) FR2673486B1 (en)

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JP3859053B2 (en) * 2000-07-07 2006-12-20 富士電機機器制御株式会社 Circuit breaker
FR2823595B1 (en) * 2001-04-12 2003-12-12 Schneider Electric Ind Sa ELECTROMAGNETIC SWITCHING APPARATUS WITH CONTACTOR CASSETTES
FR2850203B1 (en) * 2003-01-20 2005-02-25 Schneider Electric Ind Sas CUTTING HOUSING OF AN ELECTRICAL DEVICE SWITCH
DE102006055007A1 (en) * 2006-11-22 2008-05-29 Abb Ag Installation switching device with a double break
DE102008016036A1 (en) * 2008-03-28 2009-10-01 Abb Ag Installation switching device with a double break
FR2999791B1 (en) * 2012-12-18 2015-01-02 Schneider Electric Ind Sas MODULAR ELECTRICAL SWITCHING DEVICE COMPRISING AT LEAST ONE UNIPOLAR CUT-OFF BLOCK AND SWITCHING ARRANGEMENT HAVING SUCH DEVICES
FR2999783A1 (en) * 2012-12-18 2014-06-20 Schneider Electric Ind Sas UNITARY CUT-OFF BLOCK AND CUTTING DEVICE, IN PARTICULAR A CONTACTOR COMPRISING AT LEAST ONE SUCH BLOCK

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Also Published As

Publication number Publication date
EP0501885A1 (en) 1992-09-02
FR2673486B1 (en) 1996-03-01
US5218332A (en) 1993-06-08
DE69207929D1 (en) 1996-03-14
FR2673486A1 (en) 1992-09-04

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