EP2889893B1 - Electrical appliance in modular format - Google Patents

Electrical appliance in modular format Download PDF

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Publication number
EP2889893B1
EP2889893B1 EP14195789.4A EP14195789A EP2889893B1 EP 2889893 B1 EP2889893 B1 EP 2889893B1 EP 14195789 A EP14195789 A EP 14195789A EP 2889893 B1 EP2889893 B1 EP 2889893B1
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EP
European Patent Office
Prior art keywords
terminal
electrical
connection part
transformer
terminals
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EP14195789.4A
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German (de)
French (fr)
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EP2889893A1 (en
Inventor
Guy Cottone
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Legrand SNC
Legrand France SA
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Legrand SNC
Legrand France SA
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Publication of EP2889893A1 publication Critical patent/EP2889893A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer
    • 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
    • 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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with bimetal elements

Definitions

  • the invention relates to electrical devices in modular format.
  • the modular devices are provided to belong to a row where they are arranged side by side being fixed by the rear on a support rail disposed horizontally.
  • electrical devices in the modular format which are bipolar comprise an upper part and a lower part each provided with two connection terminals, respectively a first terminal for a first electrical pole and a second terminal for a second electrical pole different from the first pole. electric.
  • connection terminal is configured to receive a stripped end portion of an electrical cable or a tooth of a horizontal distribution comb.
  • the lateral face of the upper part (upper face) and the lateral face of the lower part (lower face) generally have each two introduction ports giving access respectively to the first terminal and the second terminal.
  • the modular electrical device When the modular electrical device has to fulfill several functions simultaneously, for example both a short-circuit and over-current protection circuit-breaker function and a differential protection function, the number of components to be arranged inside the circuit breaker.
  • the apparatus is relatively high and the apparatus can therefore become relatively bulky, i.e., have a width of a high number of modules.
  • EP0017818 A1 discloses an electrical apparatus according to the preamble of claim 1.
  • Other approaches distributing differently within the apparatus the various functions are proposed in particular by the applications PCT WO 98/02896 , WO 98/53473 and WO 2009/071552 .
  • the invention aims to provide a similar modular format electrical apparatus but simpler, more convenient and more economical.
  • the invention proposes for this purpose an electrical device in modular format according to claim 1.
  • the connecting part of the apparatus according to the invention is not occupied exclusively by the first terminal and by the second terminal, but also comprises at least a portion of the armature or annular magnetic circuit of the electrical transformer.
  • connection part hitherto entirely reserved for the first terminal and the second terminal certainly implies some constraints on the location and arrangement of the first terminal and the second terminal. terminal, but allows to free up space in other areas of the device.
  • the electrical apparatus according to the invention can comprise other relatively bulky components.
  • the electrical apparatus according to the invention is thus particularly simple, convenient and economical
  • the electrical apparatus 10 shown in the drawings is a bipolar differential circuit breaker with two protected poles, that is to say having a current path circuit for each pole, operating a short circuit and overcurrent detection (circuit breaker function). ) in each of the two path circuits (two protected poles) and operating a difference in intensity difference detection of the current flowing in one and the other of the routing circuits (differential function).
  • the electrical apparatus 10 has in its upper part two connection terminals 11 and in its lower part two connection terminals 12.
  • connection terminals 11 and 12 are provided to receive a stripped end section of an electrical cable or a tooth of a horizontal distribution comb of electricity.
  • Terminal 11 (upper part) on the left and terminal 12 (lower part) on the left are provided for one of the poles of the electrical installation, usually one of the phases, while the other terminals 11 and 12 (on the right) are provided for the other pole of the electrical installation, usually another phase.
  • the current path circuit between the terminals 11 and 12 on the left comprises in series a magnetic tripping member 13, a fixed contact 14, a movable contact 15, a thermal tripping member 16 and a winding 17 forming part of a transformer 18 differential fault detection.
  • connection terminals 11 and 12 on the right are identical.
  • the transformer 18 further comprises the winding 17 of the path circuit between the terminals 11 and 12 on the left and the winding 17 of the path circuit between the terminals 11 and 12 on the right, which form the primary windings. a secondary winding 19, and an armature (magnetic circuit) around which the primary windings 17 and the secondary winding 19 are made.
  • the armature 20 is annular and comprises at least a portion located in the existing space, in a left-right direction, between the two terminals 12 of the lower part.
  • the secondary winding 19 of the transformer 18 is connected by two electrical conductors to a sensitive relay 21.
  • the apparatus 10 comprises a mechanism 22, generally called a lock.
  • a lever 23 located outside the apparatus 10 makes it possible to act manually on the lock 22.
  • the two magnetic tripping members 13, the two thermal tripping members 16 and the sensitive relay 21 are configured to act on the lock 22 if necessary.
  • the lock 22 is configured to have two stable positions, respectively a cutting position where the two movable contacts 15 are each away from the corresponding fixed contact 14, and a position engagement wherein each of the two movable contacts 15 bears on the corresponding fixed contact 14.
  • the lever 23 makes it possible to act manually on the lock 22 to move from the cutting position to the latching position or vice versa.
  • Each of the two magnetic tripping members 13, each of the two thermal tripping members 16 and the sensitive relay 21 are configured to act on the lock 22 to move from the latching position to the disconnecting position when necessary.
  • the magnetic tripping members 13 act on the lock in the event of a short circuit, the thermal tripping members 16 act in the event of an overcurrent and the sensitive relay 21 acts in the event of a differential defect.
  • each magnetic tripping member 13 is formed by a coil disposed around a movable core controlling a striker acting on the lock 22 if necessary.
  • Each thermal tripping member 16 is formed by a bimetallic strip deforming in the event of prolonged overcurrent. and acting due to its deformation on the lock 22.
  • the sensitive relay 21 is supplied by the secondary winding 19 of the transformer 18 in case of difference between the current flowing in one of the windings 17 and the intensity flowing in the other winding 17, that is to say in case of differential defect. When the relay 21 is thus powered, it drives a finger that comes into contact with the lock 22 to trigger the transition from the latching position to the cutting position.
  • the lock 22 is subdivided into three subassemblies, respectively two subassemblies 25 each to cooperate with one of the movable contacts 15 and a subassembly 26 to cooperate with the sensitive relay 21.
  • the subassembly 26 is disposed in a left-right direction between the two subassemblies 25.
  • each of the two current path circuits between a terminal 11 and a terminal 12 has an arc extinction chamber 27 (not shown in FIG. figure 1 ) associated with the fixed contact 14 and the corresponding movable contact 15.
  • the electrical apparatus 10 has a generally parallelepipedic shape.
  • main faces 30 and side faces extending from one to the other of the main faces 30, namely a rear face 31, a lower face 32, a front face 33 and an upper face 34.
  • the rear face 31 has a notch 35 for mounting the device 1 on a standard support rail with an ⁇ profile (not shown).
  • the front face 33 has, in the central position, about half of its length, a nose 36 presenting the handle 23.
  • the apparatus 10 is of the modular type, that is to say that in addition to its generally parallelepipedal shape, its width (distance between the two main faces 30) is a multiple of a normalized value, known as of "module", which is of the order of 18 mm.
  • the apparatus 10 has a width of two modules.
  • At least a part, here the lower half, of the annular armature 20 of the transformer 18 is located in the existing space, in a left-right direction, between the two terminals 12 of the lower part of the device 10.
  • each terminal 11 In the space under each terminal 11 are disposed an arc extinguishing chamber 27 and a magnetic tripping member 13, with on each side the arc extinguishing chamber 27 which is behind the organ magnetic trip 13.
  • the magnetic tripping members 13 are narrower than the arc extinguishing chambers 27 and are each located near one of the main faces 30.
  • the sensitive relay 21 is located in the existing space, in a left-right direction, between the two magnetic tripping members 13 and in front of the arc extinguishing chambers 27.
  • the arc extinction chambers 27, the magnetic tripping members 13 and the sensitive relay 21 are arranged in the same stage.
  • the lock 22 is disposed under this stage with each subassembly 25 which is arranged under an arc extinguishing chamber 27 and the subassembly 26 which is arranged under the sensitive relay 21.
  • Each of the thermal tripping members 16 is disposed above one of the two terminals 12 and below the lock 22, and more precisely below one of the subassemblies 25 of the lock 22.
  • thermal tripping members 16 are elongated and inclined downwardly and rearwardly.
  • Each of the thermal tripping members 16 is near a main face 30.
  • the upper face 34 has two insertion orifices 37 each giving access to one of the terminals 11.
  • Each terminal 11 (see figure 5 ) has a contact area 40 which is fixed and a cage 41 which is movable under the effect of the screw.
  • the bare end section or the tooth of the comb to be connected is introduced into the housing delimited by the contact area 40 and by the cage 41 and the screw 39 is operated to bring the wall of the cage 41 next to the range 40 closer. to clamp the bare end portion or the tooth.
  • the distance between the two orifices 37 of the upper face 34 is of the order of one module and that the housing of the terminals 11 delimited by the contact area 40 and by the cage 41 is sized to accommodate the conductive core (denuded end section) of a very large section cable or two cables of large section or a comb tooth and the conductive core of a large section cable.
  • the lower face 32 has two insertion orifices 42 each giving access to one of the terminals 12. Below the nose 36, there are two orifices 43 each giving access to the screw 44 of one of the terminals 12.
  • each terminal 12 is arranged in a similar manner to the terminals 11, that is to say that each terminal 12 comprises (see FIG. figure 8 ) a contact area 45 which is fixed and a cage 46 which is movable under the effect of the screw 44; and the stripped end section of an electric cable or the comb tooth to be connected is introduced into the housing delimited by the contact pad 45 and the cage 46 and the screw 44 is operated to bring the wall of the cage 46 closer together facing the beach 45 to clamp the bare end portion or the tooth.
  • the difference between the two insertion orifices 42 of the lower face 32 is of the order of one and a half module and that the housing delimited by the contact pad 45 and by the cage 46 is sized to welcome the soul conductive (bare end section) of a cable of large section, but less than the housing of terminals 12.
  • the terminals 11 are sized to each accommodate a cable whose conductive core has a section such that it could carry a current of 63 A, while the terminals 12 are sized to each accommodate a cable having a section such that it could carry a current of 40 A.
  • terminals 12 are smaller than the terminals 11 and are further apart from each other is of course due to the presence of the armature 20 of the transformer 18 between the terminals 12.
  • the lower capacity of the terminals 12 is in practice not a problem since the terminals 12 remain sufficiently large to accommodate a cable having the nominal intensity of the electrical apparatus 10 (here 40 A).
  • the largest spacing between the terminals 12 does not allow the use of a conventional horizontal distribution comb, whose pitch between two successive teeth is of a module, but in practice it is especially the terminals of the upper part (here terminals 11) which are likely to cooperate with a horizontal distribution comb since in principle in some countries such as France, it is the input terminals which are located in the upper part.
  • the annular armature 20 of the transformer 18 has an axial orientation in a rear-front direction of the apparatus 10.
  • the armature 20 has a relatively large axial extension.
  • winding 17 on the left and the winding 17 on the right are implemented by a relatively large section conductor whose upper end is connected (here by welding) to the corresponding thermal trip member 16 and whose lower end is connected (here by welding) to the corresponding terminal 12 (see more particularly the figure 7 ).
  • the arrangement of the transformer 18 with, on each of the left and right sides, a terminal 12 and a thermal tripping member 16 is thus particularly convenient.
  • the transformer 18 is relatively remote from the arc extinction chambers 27. As a result, the transformer 18 introduces no or very few magnetic disturbances impeding the operation of the arc extinguishing chambers 27.
  • the transformer such as 18 is arranged not between the terminals 12 of the lower part, but between the terminals 11 of the upper part.
  • the electrical apparatus is of a different nature, for example a differential switch with thermal tripping members.
  • the transformer as configured to feed alone (without the energy of the electrical network) a sensitive relay such as 21 is replaced by a transformer of another nature, for example a transformer to provide a differential fault information to a relay powered by the power grid.
  • the arrangement of the components other than the electrical transformer such as 18, is different, with for example the magnetic tripping members such as 13 which are behind arc extinguishing chambers such as 27; and / or in each routing circuit, the magnetic tripping member such as 13 and the thermal tripping member such as 16 are replaced by a magneto-thermal tripping member.
  • the electrical apparatus has a different width and / or a number of different poles, for example a four-pole four-width device comprising four terminals at the top and four terminals at the bottom, with the armature such as 20 disposed between two terminals.
  • connection terminals 11 and 12 are shaped differently, for example with a spring for clamping the bare end section of an electric cable or the tooth of a horizontal distribution comb.

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention a trait aux appareils électriques au format modulaire.The invention relates to electrical devices in modular format.

ARRIERE PLAN TECHNOLOGIQUEBACKGROUND TECHNOLOGY

On sait que les appareils électriques au format modulaire sont globalement parallélépipédiques avec deux faces principales et des faces latérales s'étendant de l'une à l'autre des faces principales, la largeur d'un tel appareil, c'est-à-dire l'écart entre ses deux faces principales, étant égale à un nombre entier d'une largeur de base appelée « module », qui est de l'ordre de 18 mm.It is known that electrical devices in modular format are generally parallelepipedal with two main faces and side faces extending from one to the other of the main faces, the width of such an apparatus, that is to say the difference between its two main faces, being equal to an integer of a basic width called "module", which is of the order of 18 mm.

On sait également que les appareils modulaires sont prévus pour appartenir à une rangée où ils sont disposés côte-à-côte en étant fixés par l'arrière sur un rail de support disposé horizontalement.It is also known that the modular devices are provided to belong to a row where they are arranged side by side being fixed by the rear on a support rail disposed horizontally.

En général, les appareils électriques au format modulaire qui sont bipolaires comportent une partie supérieure et une partie inférieure munie chacune de deux bornes de raccordement, respectivement une première borne pour un premier pôle électrique et une deuxième borne pour un deuxième pôle électrique différent du premier pôle électrique.In general, electrical devices in the modular format which are bipolar comprise an upper part and a lower part each provided with two connection terminals, respectively a first terminal for a first electrical pole and a second terminal for a second electrical pole different from the first pole. electric.

Chaque borne de raccordement est configurée pour recevoir un tronçon d'extrémité dénudé d'un câble électrique ou une dent d'un peigne de répartition horizontale. La face latérale de la partie supérieure (face supérieure) et la face latérale de la partie inférieure (face inférieure) présentent en général chacune deux orifices d'introduction donnant accès respectivement à la première borne et à la deuxième borne.Each connection terminal is configured to receive a stripped end portion of an electrical cable or a tooth of a horizontal distribution comb. The lateral face of the upper part (upper face) and the lateral face of the lower part (lower face) generally have each two introduction ports giving access respectively to the first terminal and the second terminal.

Lorsque l'appareil électrique modulaire doit remplir simultanément plusieurs fonctions, par exemple à la fois une fonction de disjoncteur de protection contre les court-circuits et les surintensités et une fonction de protection différentielle, le nombre de composants à disposer à l'intérieur de l'appareil est relativement élevé et l'appareil peut donc devenir relativement encombrant, c'est-à-dire avoir une largeur d'un nombre élevé de modules.When the modular electrical device has to fulfill several functions simultaneously, for example both a short-circuit and over-current protection circuit-breaker function and a differential protection function, the number of components to be arranged inside the circuit breaker. The apparatus is relatively high and the apparatus can therefore become relatively bulky, i.e., have a width of a high number of modules.

On a déjà proposé, notamment dans les demandes de brevet français 2 731 837 et 2 77 110 , des solutions pour agencer les composants de l'appareil de façon à minimiser son encombrement.It has already been proposed, in particular in the French patent applications 2,731,837 and 2 77 110 , solutions for arranging the components of the apparatus so as to minimize its bulk.

Ces deux documents proposent de subdiviser l'appareil en compartiments mettant chacun en oeuvre une des fonctions de l'appareil, en l'occurrence une fonction disjoncteur ou une fonction différentielle, chaque compartiment s'étendant entre une borne de la partie supérieure et la borne correspondante de la partie inférieure. EP0017818 A1 divulgue un appareil électrique selon le préambule de la revendication 1. D'autres approches répartissant différemment à l'intérieur de l'appareil les diverses fonctions sont proposées notamment par les demandes PCT WO 98/02896 , WO 98/53473 et WO 2009/071552 .These two documents propose to subdivide the apparatus into compartments each implementing one of the functions of the apparatus, in this case a circuit-breaker function or a differential function, each compartment extending between a terminal of the upper part and the terminal corresponding of the lower part. EP0017818 A1 discloses an electrical apparatus according to the preamble of claim 1. Other approaches distributing differently within the apparatus the various functions are proposed in particular by the applications PCT WO 98/02896 , WO 98/53473 and WO 2009/071552 .

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention vise à fournir un appareil électrique au format modulaires semblable mais plus simple, plus commode et plus économique.The invention aims to provide a similar modular format electrical apparatus but simpler, more convenient and more economical.

L'invention propose à cet effet un appareil électrique au format modulaire selon la revendication 1.The invention proposes for this purpose an electrical device in modular format according to claim 1.

Contrairement aux appareils modulaires antérieurs, et notamment les appareils décrits dans les documents susmentionnées, la partie de raccordement de l'appareil selon l'invention n'est pas occupée exclusivement par la première borne et par la deuxième borne, mais comporte aussi au moins une partie de l'armature ou circuit magnétique annulaire du transformateur électrique.Unlike prior modular apparatuses, and in particular the apparatuses described in the aforementioned documents, the connecting part of the apparatus according to the invention is not occupied exclusively by the first terminal and by the second terminal, but also comprises at least a portion of the armature or annular magnetic circuit of the electrical transformer.

Le fait de disposer ce composant, en général volumineux, dans la partie de raccordement jusqu'ici entièrement réservée à la première borne et à la deuxième borne implique certes quelques contraintes sur l'emplacement et l'agencement de la première borne et de la deuxième borne, mais permet de libérer de la place dans les autres régions de l'appareil.The fact of having this component, generally bulky, in the connection part hitherto entirely reserved for the first terminal and the second terminal certainly implies some constraints on the location and arrangement of the first terminal and the second terminal. terminal, but allows to free up space in other areas of the device.

Il en résulte que l'appareil électrique selon l'invention peut comporter d'autres composants relativement volumineux.As a result, the electrical apparatus according to the invention can comprise other relatively bulky components.

Cela offre notamment l'avantage d'éviter d'avoir à miniaturiser ces autres composants de façon excessive, c'est-à-dire au point d'en réduire les performances, et/ou que l'assemblage de l'appareil ne devienne excessivement complexe.This has the particular advantage of avoiding having to miniaturize these other components excessively, that is to say, to the point of reducing their performance, and / or that the assembly of the device becomes excessively complex.

L'appareil électrique selon l'invention est ainsi particulièrement simple, commode et économiqueThe electrical apparatus according to the invention is thus particularly simple, convenient and economical

Selon des caractéristiques avantageuses de mise en oeuvre :

  • l'autre desdites partie inférieure et partie supérieure de l'appareil, appelée ci-après deuxième partie de raccordement, présente un écart entre ses deux orifices d'introduction qui est plus petit que l'écart entre les deux orifices d'introduction de la première partie de raccordement;
  • ladite première borne et ladite deuxième borne de ladite deuxième partie de raccordement sont configurées pour recevoir un tronçon d'extrémité dénudé d'un câble électrique ayant une plus grande section maximale que la section maximale pour laquelle sont configurées la première borne et la deuxième borne de la première partie de raccordement;
  • ladite armature annulaire présente une orientation axiale suivant une direction arrière-avant dudit appareil ;
  • ledit transformateur électrique est un transformateur de détection de défaut différentiel ;
  • la première borne et la deuxième borne de l'autre desdites partie inférieure et partie supérieure de l'appareil, appelé ci-après deuxième partie de raccordement, sont chacune disposées au-dessus d'une chambre d'extinction d'arc et d'un organe de déclenchement magnétique ;
  • ladite chambre d'extinction d'arc est disposée en arrière de l'organe de déclenchement magnétiques ;
  • ledit appareil comporte un relais sensible dans l'espace existant, suivant une direction gauche-droite, entre l'organe de déclenchement magnétique situé sous la première borne de la deuxième partie de raccordement et l'organe de déclenchement magnétique situé sous la deuxième borne de la deuxième partie de raccordement ;
  • ledit appareil comporte une serrure comportant en-dessous de chaque dite chambre d'extinction d'arc un sous-ensemble pour coopérer avec un contact mobile et, entre lesdits sous-ensembles un autre sous-ensemble pour coopérer avec ledit relais sensible ; et/ou
  • ledit appareil constitue un disjoncteur différentiel bipolaire à deux pôles protégés d'une largeur de deux modules.
According to advantageous features of implementation:
  • the other of said lower part and upper part of the apparatus, hereinafter referred to as the second connection part, has a gap between its two introduction orifices which is smaller than the distance between the two orifices of introduction of the first connecting part;
  • said first terminal and said second terminal of said second connection portion are configured to receive a stripped end portion of an electrical cable having a larger maximum section than the maximum section for which the first terminal and the second terminal are configured. the first connecting part;
  • said annular armature has an axial orientation in a rear-to-front direction of said apparatus;
  • said electrical transformer is a differential fault detection transformer;
  • the first terminal and the second terminal of the other of said lower part and upper part of the apparatus, hereinafter referred to as the second connection part, are each arranged above an arc extinguishing chamber and a magnetic triggering member;
  • said arc extinguishing chamber is disposed behind the magnetic tripping member;
  • said apparatus comprises a sensitive relay in the existing space, in a left-right direction, between the magnetic trip member located under the first terminal of the second connection portion and the magnetic trip member located under the second terminal of the second connecting part;
  • said apparatus comprises a lock comprising below each said arc extinction chamber a subset for cooperating with a movable contact and, between said subsets another subassembly for cooperating with said sensitive relay; and or
  • said apparatus constitutes a bipolar differential circuit breaker with two poles protected by a width of two modules.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

L'exposé de l'invention sera maintenant poursuivi par la description détaillée d'exemples de réalisation, donnée ci-après à titre illustratif et non limitatif, en référence aux dessins annexés, sur lesquels :

  • la figure 1 montre de façon très schématique le circuit électrique d'un appareil électrique selon l'invention et le mécanisme de commande des contacts mobiles que comporte ce circuit électrique ;
  • les figures 2 et 3 sont des vues en élévation de cet appareil, prises respectivement en avant et à droite de cet appareil, montrant schématiquement l'emplacement des composants du circuit électrique et du mécanisme de commande des contacts mobiles de cet appareil ;
  • la figure 4 est une vue en perspective montrant de façon détaillée l'avant, le dessus et le côté droit d'un appareil électrique selon l'invention dont on a enlevé la joue gauche et la joue droite du boîtier ;
  • la figure 5 est une vue semblable à la figure 4, mais où le boîtier de l'appareil n'est pas représenté ;
  • la figure 6 est une vue en perspective semblable à la figure 4, mais montrant le dessous, l'avant et le côté gauche de l'appareil ;
  • la figure 7 est une vue en élévation montrant le côté gauche de l'appareil selon l'invention avec la joue gauche du boîtier qui a été enlevée ;
  • la figure 8 est une vue semblable à la figure 6, mais avec le boîtier de l'appareil qui n'est pas représenté ;
  • la figure 9 est une vue en élévation montrant le côté avant de l'appareil, le boîtier n'étant pas représenté ;
  • la figure 10 est une vue en perspective de certains composants de l'appareil électrique intervenant dans le cheminement du courant entre les bornes de la partie supérieure et les bornes de la partie inférieure ; et
  • la figure 11 est une vue en perspective de certains composants de l'appareil selon l'invention, intervenant dans la protection différentielle que procure cet appareil.
The description of the invention will now be continued by the detailed description of exemplary embodiments, given below by way of illustration and without limitation, with reference to the appended drawings, in which:
  • the figure 1 shows very schematically the electrical circuit of an electrical apparatus according to the invention and the movable contact control mechanism that includes this electrical circuit;
  • the Figures 2 and 3 are elevation views of this unit, taken respectively in front and to the right of this unit, showing schematically the location of the electrical circuit components and the movable contact control mechanism of this unit;
  • the figure 4 is a perspective view showing in detail the front, the top and the right side of an electrical apparatus according to the invention which has been removed the left cheek and the right cheek of the housing;
  • the figure 5 is a view similar to the figure 4 but where the housing of the apparatus is not shown;
  • the figure 6 is a perspective view similar to the figure 4 but showing the underside, the front and the left side of the camera;
  • the figure 7 is an elevational view showing the left side of the apparatus according to the invention with the left cheek of the housing which has been removed;
  • the figure 8 is a view similar to the figure 6 but with the case of the apparatus not shown;
  • the figure 9 is an elevational view showing the front side of the apparatus, the housing not being shown;
  • the figure 10 is a perspective view of certain components of the electrical apparatus involved in the flow of current between the terminals of the upper part and the terminals of the lower part; and
  • the figure 11 is a perspective view of some components of the apparatus according to the invention, involved in the differential protection provided by this device.

DESCRIPTION DETAILLEE D'EXEMPLES DE REALISATIONDETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

L'appareil électrique 10 montré sur les dessins est un disjoncteur différentiel bipolaire à deux pôles protégés, c'est-à-dire ayant un circuit de cheminement de courant pour chaque pôle, opérant une détection de court-circuit et de surintensité (fonction disjoncteur) dans chacun des deux circuits de cheminement (deux pôles protégés) et opérant une détection de différence d'intensités du courant circulant dans l'un et l'autre des circuits de cheminement (fonction différentielle).The electrical apparatus 10 shown in the drawings is a bipolar differential circuit breaker with two protected poles, that is to say having a current path circuit for each pole, operating a short circuit and overcurrent detection (circuit breaker function). ) in each of the two path circuits (two protected poles) and operating a difference in intensity difference detection of the current flowing in one and the other of the routing circuits (differential function).

L'appareil électrique 10 comporte dans sa partie supérieure deux bornes de raccordement 11 et dans sa partie inférieure deux bornes de raccordement 12.The electrical apparatus 10 has in its upper part two connection terminals 11 and in its lower part two connection terminals 12.

Chacune des bornes de raccordement 11 et 12 est prévue pour recevoir un tronçon d'extrémité dénudé d'un câble électrique ou une dent d'un peigne de répartition horizontale de l'électricité.Each of the connection terminals 11 and 12 is provided to receive a stripped end section of an electrical cable or a tooth of a horizontal distribution comb of electricity.

La borne 11 (partie supérieure) située à gauche et la borne 12 (partie inférieure) située à gauche sont prévues pour l'un des pôles de l'installation électrique, en général l'une des phases, tandis que les autres bornes 11 et 12 (situées à droite) sont prévues pour l'autre pôle de l'installation électrique, en général une autre phase.Terminal 11 (upper part) on the left and terminal 12 (lower part) on the left are provided for one of the poles of the electrical installation, usually one of the phases, while the other terminals 11 and 12 (on the right) are provided for the other pole of the electrical installation, usually another phase.

Le circuit de cheminement de courant entre les bornes 11 et 12 de gauche comporte en série un organe de déclenchement magnétique 13, un contact fixe 14, un contact mobile 15, un organe de déclenchement thermique 16 et un enroulement 17 faisant partie d'un transformateur 18 de détection de défaut différentiel.The current path circuit between the terminals 11 and 12 on the left comprises in series a magnetic tripping member 13, a fixed contact 14, a movable contact 15, a thermal tripping member 16 and a winding 17 forming part of a transformer 18 differential fault detection.

Le circuit de cheminement entre les bornes de raccordement 11 et 12 situées à droite est identique.The path circuit between the connection terminals 11 and 12 on the right is identical.

Le transformateur 18 comporte, en outre de l'enroulement 17 du circuit de cheminement entre les bornes 11 et 12 situées à gauche et de l'enroulement 17 du circuit de cheminement entre les bornes 11 et 12 situées à droite, qui forment les enroulements primaires, un enroulement secondaire 19, et une armature (circuit magnétique) 20 autour de laquelle sont effectuées les enroulements primaires 17 et l'enroulement secondaire 19.The transformer 18 further comprises the winding 17 of the path circuit between the terminals 11 and 12 on the left and the winding 17 of the path circuit between the terminals 11 and 12 on the right, which form the primary windings. a secondary winding 19, and an armature (magnetic circuit) around which the primary windings 17 and the secondary winding 19 are made.

Ici, comme on le voit bien sur les figures 8 à 11, l'armature 20 est annulaire et comporte au moins une partie située dans l'espace existant, suivant une direction gauche-droite, entre les deux bornes 12 de la partie inférieure.Here, as we see well on Figures 8 to 11 , the armature 20 is annular and comprises at least a portion located in the existing space, in a left-right direction, between the two terminals 12 of the lower part.

L'enroulement secondaire 19 du transformateur 18 est relié par deux conducteurs électriques à un relais sensible 21.The secondary winding 19 of the transformer 18 is connected by two electrical conductors to a sensitive relay 21.

Pour commander les contacts mobiles 15, l'appareil 10 comporte un mécanisme 22, en général appelé serrure.To control the movable contacts 15, the apparatus 10 comprises a mechanism 22, generally called a lock.

Une manette 23 située à l'extérieur de l'appareil 10 permet d'agir manuellement sur la serrure 22.A lever 23 located outside the apparatus 10 makes it possible to act manually on the lock 22.

Les deux organes de déclenchement magnétique 13, les deux organes de déclenchement thermique 16 et le relais sensible 21 sont configurés pour agir si besoin sur la serrure 22.The two magnetic tripping members 13, the two thermal tripping members 16 and the sensitive relay 21 are configured to act on the lock 22 if necessary.

La serrure 22 est configurée pour avoir deux positions stables, respectivement une position de sectionnement où les deux contacts mobiles 15 sont chacun à l'écart du contact fixe 14 correspondant, et une position d'enclenchement où chacun des deux contacts mobiles 15 est en appui sur le contact fixe 14 correspondant.The lock 22 is configured to have two stable positions, respectively a cutting position where the two movable contacts 15 are each away from the corresponding fixed contact 14, and a position engagement wherein each of the two movable contacts 15 bears on the corresponding fixed contact 14.

La manette 23 permet d'agir manuellement sur la serrure 22 pour passer de la position de sectionnement à la position d'enclenchement ou inversement.The lever 23 makes it possible to act manually on the lock 22 to move from the cutting position to the latching position or vice versa.

Chacun des deux organes de déclenchement magnétique 13, chacun des deux organes de déclenchement thermique 16 et le relais sensible 21 sont configurés pour agir sur la serrure 22 pour passer de la position d'enclenchement à la position de sectionnement en cas de besoin.Each of the two magnetic tripping members 13, each of the two thermal tripping members 16 and the sensitive relay 21 are configured to act on the lock 22 to move from the latching position to the disconnecting position when necessary.

Les organes de déclenchement magnétique 13 agissent sur la serrure en cas de court-circuit, les organes de déclenchement thermique 16 agissent en cas de surintensité et le relais sensible 21 agit en cas de défaut différentiel.The magnetic tripping members 13 act on the lock in the event of a short circuit, the thermal tripping members 16 act in the event of an overcurrent and the sensitive relay 21 acts in the event of a differential defect.

En pratique, chaque organe de déclenchement magnétique 13 est formé par une bobine disposée autour d'un noyau mobile commandant un percuteur agissant si besoin sur la serrure 22. Chaque organe de déclenchement thermique 16 est formé par un bilame se déformant en cas de surintensité prolongée et agissant du fait de sa déformation sur la serrure 22. Le relais sensible 21 est alimenté par l'enroulement secondaire 19 du transformateur 18 en cas de différence entre l'intensité circulant dans l'un des enroulements 17 et l'intensité circulant dans l'autre enroulement 17, c'est-à-dire en cas de défaut différentiel. Lorsque le relais 21 est ainsi alimenté, il entraîne un doigt qui vient au contact de la serrure 22 pour déclencher le passage de la position d'enclenchement à la position de sectionnement.In practice, each magnetic tripping member 13 is formed by a coil disposed around a movable core controlling a striker acting on the lock 22 if necessary. Each thermal tripping member 16 is formed by a bimetallic strip deforming in the event of prolonged overcurrent. and acting due to its deformation on the lock 22. The sensitive relay 21 is supplied by the secondary winding 19 of the transformer 18 in case of difference between the current flowing in one of the windings 17 and the intensity flowing in the other winding 17, that is to say in case of differential defect. When the relay 21 is thus powered, it drives a finger that comes into contact with the lock 22 to trigger the transition from the latching position to the cutting position.

En pratique, la serrure 22 est subdivisée en trois sous-ensembles, respectivement deux sous-ensembles 25 chacun pour coopérer avec l'un des contacts mobiles 15 et un sous-ensemble 26 pour coopérer avec le relais sensible 21. Le sous-ensemble 26 est disposé, suivant une direction gauche-droite, entre les deux sous-ensembles 25.In practice, the lock 22 is subdivided into three subassemblies, respectively two subassemblies 25 each to cooperate with one of the movable contacts 15 and a subassembly 26 to cooperate with the sensitive relay 21. The subassembly 26 is disposed in a left-right direction between the two subassemblies 25.

En outre, chacun des deux circuits de cheminement de courant entre une borne 11 et une borne 12 comporte une chambre d'extinction d'arc 27 (non représentée sur la figure 1) associée au contact fixe 14 et au contact mobile 15 correspondant.In addition, each of the two current path circuits between a terminal 11 and a terminal 12 has an arc extinction chamber 27 (not shown in FIG. figure 1 ) associated with the fixed contact 14 and the corresponding movable contact 15.

On va maintenant décrire à l'appui des figures 2 et 3 la conformation de l'appareil électrique 10 et la façon dont les différents composants sont disposés à l'intérieur de l'appareil 10.We will now describe in support of Figures 2 and 3 the conformation of the electrical apparatus 10 and the manner in which the various components are arranged inside the apparatus 10.

L'appareil électrique 10 a une forme globalement parallélépipédique.The electrical apparatus 10 has a generally parallelepipedic shape.

Il présente deux faces principales 30 et des faces latérales s'étendant de l'une à l'autre des faces principales 30, à savoir une face arrière 31, une face inférieure 32, une face avant 33 et une face supérieure 34.It has two main faces 30 and side faces extending from one to the other of the main faces 30, namely a rear face 31, a lower face 32, a front face 33 and an upper face 34.

La face arrière 31 présente une échancrure 35 pour le montage de l'appareil 1 sur un rail de support normalisé à profil en Ω (non représenté).The rear face 31 has a notch 35 for mounting the device 1 on a standard support rail with an Ω profile (not shown).

La face avant 33 présente, en position centrale, sur à peu près la moitié de sa longueur, un nez 36 présentant la manette 23.The front face 33 has, in the central position, about half of its length, a nose 36 presenting the handle 23.

Ici, l'appareil 10 est du type modulaire, c'est-à-dire qu'outre sa forme globalement parallélépipédique, sa largeur (distance entre les deux faces principales 30) est un multiple d'une valeur normalisée, connue sous le nom de « module », qui est de l'ordre de 18 mm.Here, the apparatus 10 is of the modular type, that is to say that in addition to its generally parallelepipedal shape, its width (distance between the two main faces 30) is a multiple of a normalized value, known as of "module", which is of the order of 18 mm.

Ici, l'appareil 10 a une largeur de deux modules.Here, the apparatus 10 has a width of two modules.

Comme indiqué ci-dessus, au moins une partie, ici la moitié inférieure, de l'armature annulaire 20 du transformateur 18 est située dans l'espace existant, suivant une direction gauche-droite, entre les deux bornes 12 de la partie inférieure de l'appareil 10.As indicated above, at least a part, here the lower half, of the annular armature 20 of the transformer 18 is located in the existing space, in a left-right direction, between the two terminals 12 of the lower part of the the device 10.

En revanche, il n'existe aucun composant de l'appareil 10 situé dans l'espace existant, suivant une direction gauche-droite, entre les deux bornes 11 de la partie supérieure de l'appareil 10.On the other hand, there is no component of the apparatus 10 located in the existing space, in a left-right direction, between the two terminals 11 of the upper part of the apparatus 10.

Dans l'espace situé sous chaque borne 11, sont disposées une chambre d'extinction d'arc 27 et un organe de déclenchement magnétique 13, avec de chaque côté la chambre d'extinction d'arc 27 qui est en arrière de l'organe de déclenchement magnétique 13.In the space under each terminal 11 are disposed an arc extinguishing chamber 27 and a magnetic tripping member 13, with on each side the arc extinguishing chamber 27 which is behind the organ magnetic trip 13.

Comme on le voit bien sur les figures 2 et 5, les organes de déclenchement magnétique 13 sont moins larges que les chambres d'extinction d'arc 27 et sont situées chacune à proximité de l'une des faces principales 30.As can be seen from the figures 2 and 5 the magnetic tripping members 13 are narrower than the arc extinguishing chambers 27 and are each located near one of the main faces 30.

Le relais sensible 21 est situé dans l'espace existant, suivant une direction gauche-droite, entre les deux organes de déclenchement magnétique 13 et en avant des chambres d'extinction d'arc 27.The sensitive relay 21 is located in the existing space, in a left-right direction, between the two magnetic tripping members 13 and in front of the arc extinguishing chambers 27.

D'une façon générale, les chambres d'extinction d'arc 27, les organes de déclenchement magnétique 13 et le relais sensible 21 sont disposés dans un même étage.In general, the arc extinction chambers 27, the magnetic tripping members 13 and the sensitive relay 21 are arranged in the same stage.

La serrure 22 est disposée sous cet étage avec chaque sous-ensemble 25 qui est disposé sous une chambre d'extinction d'arc 27 et le sous-ensemble 26 qui est disposé sous le relais sensible 21.The lock 22 is disposed under this stage with each subassembly 25 which is arranged under an arc extinguishing chamber 27 and the subassembly 26 which is arranged under the sensitive relay 21.

Chacun des organes de déclenchement thermique 16 est disposé au-dessus de l'une des deux bornes 12 et en-dessous de la serrure 22, et plus précisément en-dessous de l'un des sous-ensembles 25 de la serrure 22.Each of the thermal tripping members 16 is disposed above one of the two terminals 12 and below the lock 22, and more precisely below one of the subassemblies 25 of the lock 22.

D'une façon générale, comme on le voit bien sur la figure 3, les organes de déclenchement thermiques 16 sont allongés et inclinés vers le bas et vers l'arrière.In a general way, as we see clearly on the figure 3 the thermal tripping members 16 are elongated and inclined downwardly and rearwardly.

Chacun des organes de déclenchement thermique 16 est à proximité d'une face principale 30.Each of the thermal tripping members 16 is near a main face 30.

Dans l'espace existant, suivant une direction gauche-droite, entre les deux organes de déclenchement thermique 16, est situé une partie de l'armature annulaire du transformateur 18, ici la moitié supérieure.In the existing space, in a left-right direction, between the two thermal release members 16, is located a portion of the annular armature of the transformer 18, here the upper half.

D'une façon générale, ici, l'espace interne à l'appareil électrique 10 est subdivisé en quatre étages, à savoir, du bas vers le haut :

  • un premier étage comportant le transformateur 18, et de chaque côté de celui-ci, l'une des bornes 12 et l'un des organes de déclenchement thermique 16, avec les bornes 12 qui sont en-dessous des organes de déclenchement thermique 16 ;
  • un deuxième étage, situé au-dessus du premier étage, comportant la serrure 22, dans laquelle le sous-ensemble 26 est disposé, suivant une direction gauche-droite, entre les deux sous-ensembles 25 ;
  • un troisième étage, disposé au-dessus du deuxième étage, comportant les deux chambres d'extinction d'arc 27, les deux organes de déclenchement magnétique 13 et le relais sensible 21, avec les deux chambres d'extinction d'arc 27 qui sont à l'arrière tandis que les deux organes de déclenchement magnétique 13 et le relais sensible 21 sont à l'avant ; et
  • un quatrième étage comportant les deux bornes 11 de la partie supérieure.
In general, here, the space inside the electrical apparatus 10 is subdivided into four stages, namely, from the bottom upwards:
  • a first stage comprising the transformer 18, and on each side thereof, one of the terminals 12 and one of the thermal tripping members 16, with the terminals 12 which are below the thermal tripping members 16;
  • a second stage, located above the first stage, comprising the lock 22, in which the subassembly 26 is arranged, in a left-right direction, between the two subassemblies 25;
  • a third stage, disposed above the second stage, comprising the two arc extinguishing chambers 27, the two magnetic tripping members 13 and the sensitive relay 21, with the two arc extinguishing chambers 27 which are at the rear while the two magnetic tripping members 13 and the sensitive relay 21 are in the front; and
  • a fourth stage comprising the two terminals 11 of the upper part.

On va maintenant décrire plus en détail l'appareil électrique 10 à l'appui des figures 4 à 11.We will now describe in more detail the electrical apparatus 10 in support of Figures 4 to 11 .

Comme on le voit sur la figure 4, la face supérieure 34 présente deux orifices d'introduction 37 donnant chacun accès à l'une des bornes 11.As we see on the figure 4 , the upper face 34 has two insertion orifices 37 each giving access to one of the terminals 11.

Au-dessus du nez 36 se trouvent deux orifices 38 donnant chacun accès à la vis 39 de l'une des bornes 11.Above the nose 36 are two orifices 38 each giving access to the screw 39 of one of the terminals 11.

Chaque borne 11 (voir la figure 5) comporte une plage de contact 40 qui est fixe et une cage 41 qui est mobile sous l'effet de la vis.Each terminal 11 (see figure 5 ) has a contact area 40 which is fixed and a cage 41 which is movable under the effect of the screw.

Le tronçon d'extrémité dénudé ou la dent du peigne à raccorder est introduit dans le logement délimité par la plage de contact 40 et par la cage 41 et la vis 39 est manoeuvrée pour rapprocher la paroi de la cage 41 en regard de la plage 40 pour serrer le tronçon d'extrémité dénudé ou la dent.The bare end section or the tooth of the comb to be connected is introduced into the housing delimited by the contact area 40 and by the cage 41 and the screw 39 is operated to bring the wall of the cage 41 next to the range 40 closer. to clamp the bare end portion or the tooth.

On notera qu'ici l'écart entre les deux orifices 37 de la face supérieure 34 est de l'ordre de un module et que le logement des bornes 11 délimité par la plage de contact 40 et par la cage 41 est dimensionné pour accueillir l'âme conductrice (tronçon d'extrémité dénudé) d'un câble de section très importante ou alors de deux câbles de section importante ou encore une dent de peigne et l'âme conductrice d'un câble de section importante.It will be noted here that the distance between the two orifices 37 of the upper face 34 is of the order of one module and that the housing of the terminals 11 delimited by the contact area 40 and by the cage 41 is sized to accommodate the conductive core (denuded end section) of a very large section cable or two cables of large section or a comb tooth and the conductive core of a large section cable.

Comme on le voit sur la figure 6, la face inférieure 32 présente deux orifices d'introduction 42 donnant chacun accès à l'une des bornes 12. En dessous du nez 36, se trouvent deux orifices 43 donnant chacun accès à la vis 44 de l'une des bornes 12.As we see on the figure 6 , the lower face 32 has two insertion orifices 42 each giving access to one of the terminals 12. Below the nose 36, there are two orifices 43 each giving access to the screw 44 of one of the terminals 12.

Chaque borne 12 est agencée d'une façon similaire aux bornes 11, c'est-à-dire que chaque borne 12 comporte (voir la figure 8) une plage de contact 45 qui est fixe et une cage 46 qui est mobile sous l'effet de la vis 44 ; et le tronçon d'extrémité dénudé d'un câble électrique ou la dent du peigne à raccorder est introduit dans le logement délimité par la plage de contact 45 et par la cage 46 et la vis 44 est manoeuvrée pour rapprocher la paroi de la cage 46 en regard de la plage 45 pour serrer le tronçon d'extrémité dénudé ou la dent.Each terminal 12 is arranged in a similar manner to the terminals 11, that is to say that each terminal 12 comprises (see FIG. figure 8 ) a contact area 45 which is fixed and a cage 46 which is movable under the effect of the screw 44; and the stripped end section of an electric cable or the comb tooth to be connected is introduced into the housing delimited by the contact pad 45 and the cage 46 and the screw 44 is operated to bring the wall of the cage 46 closer together facing the beach 45 to clamp the bare end portion or the tooth.

On notera qu'ici l'écart entre les deux orifices d'introduction 42 de la face inférieure 32 est de l'ordre de un module et demi et que le logement délimité par la plage de contact 45 et par la cage 46 est dimensionné pour accueillir l'âme conductrice (tronçon d'extrémité dénudé) d'un câble de section importante, mais moins que le logement des bornes 12.It will be noted here that the difference between the two insertion orifices 42 of the lower face 32 is of the order of one and a half module and that the housing delimited by the contact pad 45 and by the cage 46 is sized to welcome the soul conductive (bare end section) of a cable of large section, but less than the housing of terminals 12.

Ici, les bornes 11 sont dimensionnées pour accueillir chacune un câble dont l'âme conductrice a une section telle qu'elle pourrait véhiculer un courant de 63 A, alors que les bornes 12 sont dimensionnées pour accueillir chacune un câble ayant une section telle qu'elle pourrait véhiculer un courant de 40 A.Here, the terminals 11 are sized to each accommodate a cable whose conductive core has a section such that it could carry a current of 63 A, while the terminals 12 are sized to each accommodate a cable having a section such that it could carry a current of 40 A.

Le fait que les bornes 12 soient plus petites que les bornes 11 et soient davantage écartées l'une de l'autre est bien entendu dû à la présence de l'armature 20 du transformateur 18 entre les bornes 12.The fact that the terminals 12 are smaller than the terminals 11 and are further apart from each other is of course due to the presence of the armature 20 of the transformer 18 between the terminals 12.

La plus faible capacité des bornes 12 n'est en pratique pas gênante puisque les bornes 12 demeurent suffisamment grandes pour accueillir un câble ayant l'intensité nominale de l'appareil électrique 10 (ici 40 A).The lower capacity of the terminals 12 is in practice not a problem since the terminals 12 remain sufficiently large to accommodate a cable having the nominal intensity of the electrical apparatus 10 (here 40 A).

Le plus grand écartement entre les bornes 12 ne permet pas l'utilisation d'un peigne conventionnel de répartition horizontale, dont le pas entre deux dents successives est de un module, mais en pratique c'est surtout les bornes de la partie supérieure (ici les bornes 11) qui sont susceptibles de coopérer avec un peigne de répartition horizontale puisqu'en principe dans certains pays tels que la France, ce sont les bornes d'entrée qui sont situées en partie supérieure.The largest spacing between the terminals 12 does not allow the use of a conventional horizontal distribution comb, whose pitch between two successive teeth is of a module, but in practice it is especially the terminals of the upper part (here terminals 11) which are likely to cooperate with a horizontal distribution comb since in principle in some countries such as France, it is the input terminals which are located in the upper part.

Comme on le voit bien sur les figures 8 à 11, l'armature annulaire 20 du transformateur 18 a une orientation axiale selon une direction arrière-avant de l'appareil 10.As can be seen from the Figures 8 to 11 , the annular armature 20 of the transformer 18 has an axial orientation in a rear-front direction of the apparatus 10.

L'armature 20 a une extension axiale relativement importante.The armature 20 has a relatively large axial extension.

On observera que l'enroulement 17 de gauche et l'enroulement 17 de droite sont mis en oeuvre par un conducteur de section relativement importante, dont l'extrémité supérieure est reliée (ici par soudure) à l'organe de déclenchement thermique 16 correspondant et dont l'extrémité inférieure est reliée (ici par soudure) à la borne 12 correspondante (voir plus particulièrement la figure 7).It will be observed that the winding 17 on the left and the winding 17 on the right are implemented by a relatively large section conductor whose upper end is connected (here by welding) to the corresponding thermal trip member 16 and whose lower end is connected (here by welding) to the corresponding terminal 12 (see more particularly the figure 7 ).

L'agencement du transformateur 18 avec, de chacun des côtés gauche et droit, une borne 12 et un organe de déclenchement thermique 16 est ainsi particulièrement commode.The arrangement of the transformer 18 with, on each of the left and right sides, a terminal 12 and a thermal tripping member 16 is thus particularly convenient.

On observera que les chambres d'extinction d'arc 27 sont relativement volumineuses et offrent donc un pouvoir de coupure relativement important.It will be observed that arc extinguishing chambers 27 are relatively large and therefore have a relatively high breaking capacity.

On observera que les organes de déclenchement magnétique 13 ont en revanche un encombrement relativement réduit, grâce à leur conformation rectangulaire. Pour plus de détails sur les organes de déclenchement magnétique 13, on pourra se reporter à la demande de brevet européen EP 1 254 475 .It will be observed that the magnetic tripping members 13, on the other hand, have a relatively small bulk due to their rectangular conformation. For more details on the magnetic tripping members 13, reference may be made to the European patent application EP 1 254 475 .

On observera que le transformateur 18 est relativement éloigné des chambres d'extinction d'arc 27. En conséquence, le transformateur 18 n'introduit pas ou très peu de perturbations magnétiques gênant le fonctionnement des chambres d'extinction d'arc 27.It will be observed that the transformer 18 is relatively remote from the arc extinction chambers 27. As a result, the transformer 18 introduces no or very few magnetic disturbances impeding the operation of the arc extinguishing chambers 27.

Comme on le voit plus particulièrement sur les figures 10 et 11, il existe entre les deux chambres d'extinction d'arc 27, suivant une direction gauche-droite, un espace 50 (figure 10) qui permet le passage du conducteur rigide 51 (figure 11) faisant partie d'un circuit de test de la fonction différentielle, déclenché manuellement par la touche 52 située sur la face avant 33 de l'appareil 10.As we see more particularly on Figures 10 and 11 there exists between the two arc extinguishing chambers 27, in a left-right direction, a space 50 ( figure 10 ) which allows the passage of the rigid conductor 51 ( figure 11 ) forming part of a differential function test circuit, triggered manually by the key 52 on the front panel 33 of the apparatus 10.

Dans une variante non représentée, le transformateur tel que 18 est disposé non pas entre les bornes 12 de la partie inférieure, mais entre les bornes 11 de la partie supérieure.In a variant not shown, the transformer such as 18 is arranged not between the terminals 12 of the lower part, but between the terminals 11 of the upper part.

Dans des variantes non représentées, l'appareil électrique est d'une autre nature, par exemple un interrupteur différentiel à organes de déclenchement thermique.In variants not shown, the electrical apparatus is of a different nature, for example a differential switch with thermal tripping members.

Dans des variantes non représentées, le transformateur tel que 18 configuré pour alimenter à lui seul (sans l'énergie du réseau électrique) un relais sensible tel que 21 est remplacé par un transformateur d'une autre nature, par exemple un transformateur pour fournir une information de défaut différentiel à un relais alimenté par le réseau électrique.In variants not shown, the transformer as configured to feed alone (without the energy of the electrical network) a sensitive relay such as 21 is replaced by a transformer of another nature, for example a transformer to provide a differential fault information to a relay powered by the power grid.

Dans des variantes non représentées, l'agencement des composants autres que le transformateur électrique tel que 18, est différent, avec par exemple les organes de déclenchement magnétiques tels que 13 qui sont en arrière des chambres d'extinction d'arc telles que 27 ; et/ou dans chaque circuit de cheminement, l'organe de déclenchement magnétique tel que 13 et l'organe de déclenchement thermique tel que 16 sont remplacés par un organe de déclenchement magnéto-thermique.In variants not shown, the arrangement of the components other than the electrical transformer such as 18, is different, with for example the magnetic tripping members such as 13 which are behind arc extinguishing chambers such as 27; and / or in each routing circuit, the magnetic tripping member such as 13 and the thermal tripping member such as 16 are replaced by a magneto-thermal tripping member.

Dans des variantes non représentées l'appareil électrique a une largeur différente et/ou un nombre de pôles différents, par exemple un appareil tétrapolaire d'une largeur de quatre modules comportant quatre bornes en partie supérieure et quatre bornes en partie inférieure, avec l'armature telle que 20 disposée entre deux bornes.In variants that are not shown, the electrical apparatus has a different width and / or a number of different poles, for example a four-pole four-width device comprising four terminals at the top and four terminals at the bottom, with the armature such as 20 disposed between two terminals.

Dans des variantes non représentées, les bornes de raccordement 11 et 12 sont conformées différemment, par exemple avec un ressort pour serrer le tronçon d'extrémité dénudé d'un câble électrique ou la dent d'un peigne de répartition horizontale.In variants not shown, the connection terminals 11 and 12 are shaped differently, for example with a spring for clamping the bare end section of an electric cable or the tooth of a horizontal distribution comb.

De nombreuses autres variantes sont possibles en fonction des circonstances, et l'on rappelle à cet égard que l'invention ne se limite pas aux exemples décrits et représentés.Many other variants are possible depending on the circumstances, and it is recalled in this regard that the invention is not limited to the examples described and shown.

Claims (10)

  1. An electrical apparatus of modular configuration, of parallelepiped general shape with two main faces (30) and lateral faces (31-34) extending from one to the other of the main faces (30), and of width, that is to say the spacing between the two main faces (30), equal to an integer multiple of a predetermined distance, called module, the upper part and the lower part of said apparatus each comprising two connection terminals (11, 12), respectively a first terminal, situated on the left, for a first electrical pole and a second terminal, situated on the right, for a second electrical pole different from the first electrical pole, each said connection terminal being configured to receive a stripped end section of an electrical cable or a tooth of a horizontal comb-like busbar, said lateral face (34) of the upper part or said lateral face (32) of the lower part each having two insertion apertures (37, 42) giving access respectively to the first terminal and to the second terminal;
    which electrical apparatus comprises at least part of an annular armature (20) of an electrical transformer (18) which is situated in the space which, in a left-right direction, exists between said first terminal (12) and said second terminal (12) of one of said lower part and upper part of the apparatus, referred to hereinafter as first connection part; said transformer (18) comprises two windings (17) each formed by a conductor of which one end is connected respectively to the first terminal (12) and to the second terminal (12) of said first connection part; which electrical apparatus is characterized in that said apparatus comprises to the right and to the left of said annular armature (20) a thermal triggering device (16), said annular armature (20) of the electrical transformer (18) is situated in the space which, in a left-right direction, exists between the two thermal triggering devices (16), each winding (17) having a second end connected to a respective one of said thermal triggering devices (16)
  2. An apparatus according to claim 1, characterized in that the other of said lower part and upper part of the apparatus, hereinafter called second connection part, has a spacing between its two insertion apertures (37) which is smaller than the spacing between the two insertion apertures (42) of the first connection part.
  3. An apparatus according to claim 2, characterized in that said first terminal (11) and said second terminal (11) of said second connection part are configured to receive a stripped end section of an electrical cable having a maximum cross-section larger than the maximum cross-section for which the first terminal (12) and the second terminal (12) of the first connection part are configured.
  4. An apparatus according to any one of claims 1 to 3, characterized in that said annular armature (20) has an axial orientation in a rear-front direction of said apparatus.
  5. An apparatus according to any one of claims 1 to 4, characterized in that said electrical transformer (18) is a transformer with differential fault detection.
  6. An apparatus according to any one of claims 1 to 5, characterized in that the first terminal (11) and the second terminal (11) of the other of said lower part and upper part of the apparatus, hereinafter called second connection part, are each disposed above an arc quenching chamber (27) and a magnetic triggering device (13).
  7. An apparatus according to claim 6, characterized in that said arc quenching chamber (27) is disposed behind the magnetic triggering device (13).
  8. An apparatus according to any one of claims 6 or 7, characterized in that it comprises a sensitive relay (21) in the space which, in a left-right direction, exists between the magnetic triggering device (13) situated under the first terminal (11) of the second connection part and the magnetic triggering device (13) situated under the second terminal (12) of the second connection part.
  9. An apparatus according to claim 8, characterized in that it comprises a latch (22) comprising below each said arc quenching chamber (27) a sub-assembly (22) for cooperating with a mobile contact (15) and, between said sub-assemblies (22) another sub-assembly (26) for cooperating with said sensitive relay (21).
  10. An apparatus according to any one of claims 1 to 9, characterized in that it constitutes a bipolar differential circuit breaker with two protected poles having a width of two modules.
EP14195789.4A 2013-12-27 2014-12-02 Electrical appliance in modular format Active EP2889893B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1363648A FR3016078A1 (en) 2013-12-27 2013-12-27 ELECTRICAL EQUIPMENT WITH MODULAR FORMAT

Publications (2)

Publication Number Publication Date
EP2889893A1 EP2889893A1 (en) 2015-07-01
EP2889893B1 true EP2889893B1 (en) 2018-04-04

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EP14195789.4A Active EP2889893B1 (en) 2013-12-27 2014-12-02 Electrical appliance in modular format

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Country Link
EP (1) EP2889893B1 (en)
CN (1) CN104752112B (en)
DK (1) DK2889893T3 (en)
ES (1) ES2674136T3 (en)
FR (1) FR3016078A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112951665A (en) * 2021-03-31 2021-06-11 英特曼电工（常州）有限公司 2P2 modulus electromagnetic type earth leakage protection circuit breaker

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915091C2 (en) * 1979-04-12 1981-07-30 Siemens AG, 1000 Berlin und 8000 München Residual current circuit breaker
FR2626105B1 (en) * 1988-01-20 1990-06-15 Hager Electro ELECTRICAL PROTECTION APPARATUS
FR2686453B1 (en) * 1992-01-17 1994-04-08 Legrand DIFFERENTIAL SWITCH.
FR2731837B1 (en) 1995-03-16 1997-06-06 Legrand Sa SINGLE POLE AND NEUTRAL DIFFERENTIAL CIRCUIT BREAKER
IT1283162B1 (en) 1996-07-15 1998-04-07 Gewiss Spa AUTOMATIC MODULAR AND COMPONABLE ELECTRIC SWITCH, WITH OPTIMIZATION OF THE SPACES USED
IT1292339B1 (en) 1997-05-20 1999-01-29 Gewiss Spa MOVING CONTACT ACTIVATION KINEMATICS PARTICULARLY FOR AUTOMATIC ELECTRIC SWITCHES
FR2777110B1 (en) * 1998-04-03 2000-06-23 Legrand Sa MULTIPOLAR DIFFERENTIAL CIRCUIT BREAKER
EP1130613B1 (en) 2000-02-11 2003-10-08 Bticino S.P.A. Automatic switch with actuating electromagnet for short circuits
ITMI20072278A1 (en) 2007-12-04 2009-06-05 Abb Spa AUTOMATIC SWITCH FOR LOW VOLTAGE APPLICATIONS.
CN102683130B (en) * 2011-03-09 2016-03-23 上海电科电器科技有限公司 Circuit breaker with optimized space allocation
EP2685484B1 (en) * 2011-03-09 2018-01-17 Seari Electric Technology Co., Ltd. Circuit breaker for optimizing space allocation

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Title
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Also Published As

Publication number Publication date
FR3016078A1 (en) 2015-07-03
DK2889893T3 (en) 2018-07-16
ES2674136T3 (en) 2018-06-27
EP2889893A1 (en) 2015-07-01
CN104752112B (en) 2018-08-03
CN104752112A (en) 2015-07-01

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