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EP1117115B1 - Differential electric protection device, in particular a differential switch - Google Patents

Differential electric protection device, in particular a differential switch Download PDF

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Publication number
EP1117115B1
EP1117115B1 EP00410148A EP00410148A EP1117115B1 EP 1117115 B1 EP1117115 B1 EP 1117115B1 EP 00410148 A EP00410148 A EP 00410148A EP 00410148 A EP00410148 A EP 00410148A EP 1117115 B1 EP1117115 B1 EP 1117115B1
Authority
EP
European Patent Office
Prior art keywords
mentioned
housing
differential
board
spring
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
EP00410148A
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German (de)
French (fr)
Other versions
EP1117115A1 (en
Inventor
Juan Cantero
Franck Fontana
Patrick Guillon
Bernard Lebeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1117115A1 publication Critical patent/EP1117115A1/en
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Publication of EP1117115B1 publication Critical patent/EP1117115B1/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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques

Definitions

  • the present invention relates to a differential electrical protection device including a switch comprising, housed in an insulating housing comprising a base and a cover, a mechanism for opening and closing the contacts actuated by a handle, a differential release device capable of being actuated by a triggering member and mechanically connected to said mechanism so as to cause the opening of the contacts of the device when an insulation fault occurs in the circuit to be protected, the aforementioned triggering device being mounted on an electronic card for processing information, the mobile contact (s) of the apparatus being retained in a closed position by an unlocking system that can be unlocked by the actuation of the aforementioned trigger, and being recalled (s) in an open position after triggering by a spring housed in a housing belonging to the base, said spring being supported by its two opposite ends respectively on a wall of the base and on the shaft bearing the (the) contact (s) mobile (s).
  • Document FR 2 686 453 describes a device according to the preamble of claim 1.
  • the present invention solves this problem and proposes a differential switch whose assembly is considerably simplified.
  • the subject of the present invention is a differential electrical protection apparatus such as a switch, this apparatus being characterized in that the base of the apparatus comprises an opening for introducing the spring into the aforementioned housing after mounting, inside the base of the housing of the device, the card equipped with the differential release device and on which card has been previously fixed the mechanism.
  • the housing of the apparatus comprising a front face having, on either side of a projecting portion housing the aforementioned mechanism, two connecting faces accommodating the connection terminals of the apparatus, the device is characterized in that the aforementioned insertion opening of the spring is located substantially at the intersection between one of the connecting faces and the above projecting portion.
  • the aforementioned mechanism is supported by a flange comprising latching means cooperating with complementary latching means provided on the base to ensure at least partly the fixing of the mechanism on the base after mounting said mechanism on the map.
  • the housing of the toroid is arranged with respect to the card, so that this housing cooperates with the walls of the base so as to insure against each other, primary braids directly connecting the contacts mobile devices at the output terminals of the device.
  • the aforementioned mechanism is fixed by plugging on the card.
  • an electronic differential switch D is shown intended to be placed on an electrical network so as to protect it against ground insulation faults.
  • this apparatus is housed in a substantially parallelepiped shaped housing comprising a base 1 and a cover (not visible in the drawings).
  • This switch comprises, as more particularly illustrated in FIG. 1, a differential tripping device 2 mounted on an electronic card 3, said card 3 comprising an auxiliary power supply processing electronic circuit and a mechanism 4 for opening and closing contacts 5.6.
  • This assembly is mounted (FIG. 2) in a compartment 7 of the base 1 of the isolator housing of the switch intended to house input connection terminals 8 and output terminals 9 to constitute a differential switch D.
  • the differential tripping device 2 comprises, in a manner known per se, a totalizing transformer 10 and an electromagnetic tripping relay 11.
  • the totalizing transformer 10 constitutes a differential current detector and is provided with a toroidal magnetic circuit 12 having a central orifice 13 may be traversed by the primary windings 14,15 constituted by the power conductors of the low voltage network to be protected.
  • a secondary winding 16 is wound on the core 12, and is electrically connected to a measurement resistor of the electronic circuit.
  • the electromagnetic tripping relay 11 is formed by a current-transmitting coil actuator 17.
  • the tubular coil 17 is carried by a support, and comprises, in a known way within a bore, a movable magnetic core (not visible in the figures) coupled to an actuating member.
  • the relay coil is connected to two terminals of the electronic circuit.
  • the base 1 of the housing includes a housing 18 intended to receive a spring 19 called a pull spring capable of biasing the movable contacts 5, 6 in the open position after the tripping of the device.
  • the spring 19 is supported by its two opposite ends 19a, 19b respectively on a wall of the base 1 of the housing, and on a shaft 20 said contact carrier supporting the movable contacts 5 6.
  • this housing 18 has an access port 21 located so as to allow the mounting of the spring 19 after assembly of the assembly consisting of the card 3 equipped with the mechanism 4 and the trigger device 2 to the Inside the base 1.
  • this orifice 21 is located at the intersection between, on the one hand, the projecting part s (FIG. 4) housing the opening and closing mechanism 4 and on the other hand, one 22 of the connecting faces 22,23 of the apparatus.
  • the device is installed as follows. Firstly, the primary conductors 14, 15 are introduced through the torus 12 (FIG. These primaries 14,15 are connected, by one of their ends 14a, 15a, respectively to the output connection terminals 9 of the apparatus, and by their opposite end 14b, 15b respectively to the two movable contacts 5,6. The mechanism 4 for opening and closing the contacts is then plugged or plugged onto the card 3 (FIG. 1), then the assembly is inserted into the opening of the base 1.
  • this assembly is realized on the one hand, by snapping mechanism 4 on the base 1 thanks to the presence of a hook 25 provided on the flange 26 supporting the mechanism 4, said hook 25 being adapted to cooperate with a complementary latching element 27 provided on the base 1 and on the other hand, by means of a screw (not shown) passing through two orifices 30, 31 respectively provided in the flange 26 and in the base 1.
  • the tearing spring 19 can then be inserted (position b) in the housing 18 of the base 1 through the opening 21 provided for this purpose in the base 1, as shown more particularly in Figure 4, to the position shown in (a). In this latter position (a), the spring 19 is supported on the one hand, on a wall belonging to the base 1 and on the other hand, on the contact-holder shaft 20.
  • the housing 29 of the core 12 is arranged with respect to the card 3 in such a way that this housing 29 cooperates with the walls 28 of the base 1 so as to insulating, with respect to each other, primary braids 14,15 directly connecting the movable contacts 5,6 to the output ranges 9 of the apparatus. This ensures insulation of the active conductors 14,15 between them at lower cost.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Amplifiers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

An electrical switch consists of a differential tripping circuit (2) with magnetic torus which is mounted on a data processing electronic card (3) and combined with a mechanical open/close mechanism (4) with an operating button. The assembly fits into a case (1) which has an aperture (21). The aperture (21) enables a spring (19) to be placed into a housing (18) after full switch assembly

Description

La présente invention concerne un appareil de protection électrique différentiel notamment un interrupteur comprenant, logé dans un boîtier isolant comprenant un socle et un couvercle, un mécanisme d'ouverture et de fermeture des contacts actionné par une manette, un dispositif de déclenchement différentiel apte à être actionné par un organe de déclenchement et relié mécaniquement audit mécanisme de manière à provoquer l'ouverture des contacts de l'appareil lors de l'apparition d'un défaut d'isolement dans le circuit à protéger, le dispositif de déclenchement précité étant monté sur une carte électronique de traitement d'informations, le(s) contact(s) mobile(s) de l'appareil étant retenu(s) dans une position fermée par un système d'accrochage déverrouillable par l'actionnement de l'organe de déclenchement précité, et étant rappelé(s) dans une position d'ouverture après déclenchement par un ressort logé dans un logement appartenant au socle, ledit ressort étant en appui par ses deux extrémités opposées respectivement sur une paroi du socle et sur l'arbre portant le(les) contact(s) mobile(s).The present invention relates to a differential electrical protection device including a switch comprising, housed in an insulating housing comprising a base and a cover, a mechanism for opening and closing the contacts actuated by a handle, a differential release device capable of being actuated by a triggering member and mechanically connected to said mechanism so as to cause the opening of the contacts of the device when an insulation fault occurs in the circuit to be protected, the aforementioned triggering device being mounted on an electronic card for processing information, the mobile contact (s) of the apparatus being retained in a closed position by an unlocking system that can be unlocked by the actuation of the aforementioned trigger, and being recalled (s) in an open position after triggering by a spring housed in a housing belonging to the base, said spring being supported by its two opposite ends respectively on a wall of the base and on the shaft bearing the (the) contact (s) mobile (s).

Le document FR 2 686 453 décrit un dispositif selon le préambule de la revendication 1.Document FR 2 686 453 describes a device according to the preamble of claim 1.

On connaît des interrupteurs différentiels du genre précédemment mentionné dans lesquels la structure de base de l'appareil ne permet pas de recevoir une carte comportant le circuit électronique à source auxiliaire d'alimentation, qui soit équipée à la fois du dispositif de déclenchement différentiel et du mécanisme d'ouverture des contacts de l'appareil. Dans ces appareils en effet, il est nécessaire de monter le ressort d'arrachement des contacts à l'intérieur du socle avant le mécanisme, ce qui rend complexe l'assemblage car il est nécessaire d'amener l'arbre porte-contact en appui contre le ressort. Il en résulte qu'il n'est pas possible de recevoir dans le socle de l'appareil, une carte électronique connectée à l'avance sur le mécanisme.Differential switches of the above-mentioned kind are known in which the basic structure of the apparatus does not make it possible to receive a card comprising the auxiliary power supply electronic circuit, which is equipped with both the differential tripping device and the mechanism for opening the contacts of the device. In these devices indeed, it is necessary to mount the contact tear spring inside the base before the mechanism, which makes the assembly complex because it is necessary to bring the support bearing shaft support against the spring. As a result, it is not possible to receive in the base of the device, an electronic card connected in advance on the mechanism.

La présente invention résout ce problème et propose un interrupteur différentiel dont l'assemblage est considérablement simplifié.The present invention solves this problem and proposes a differential switch whose assembly is considerably simplified.

A cet effet, la présente invention a pour objet un appareil de protection électrique différentiel tel un interrupteur, cet appareil étant caractérisé en ce que le socle de l'appareil comporte une ouverture permettant l'introduction du ressort dans le logement précité après le montage, à l'intérieur du socle du boîtier de l'appareil, de la carte équipée du dispositif de déclenchement différentiel et sur laquelle carte a été préalablement fixé le mécanisme.For this purpose, the subject of the present invention is a differential electrical protection apparatus such as a switch, this apparatus being characterized in that the base of the apparatus comprises an opening for introducing the spring into the aforementioned housing after mounting, inside the base of the housing of the device, the card equipped with the differential release device and on which card has been previously fixed the mechanism.

Selon une réalisation particulière, le boîtier de l'appareil comprenant une face avant présentant, de part et d'autre d'une partie en saillie logeant le mécanisme précité, deux faces de raccordement logeant les bornes de raccordement de l'appareil, le dispositif est caractérisé en ce que l'ouverture précitée d'introduction du ressort est située sensiblement à l'intersection entre l'une des faces de raccordement et la partie en saillie précitée.According to a particular embodiment, the housing of the apparatus comprising a front face having, on either side of a projecting portion housing the aforementioned mechanism, two connecting faces accommodating the connection terminals of the apparatus, the device is characterized in that the aforementioned insertion opening of the spring is located substantially at the intersection between one of the connecting faces and the above projecting portion.

Selon une caractéristique particulière, le mécanisme précité est supporté par un flasque comportant des moyens d'encliquetage coopérant avec des moyens d'encliquetage complémentaires prévus sur le socle pour assurer au moins en partie la fixation du mécanisme sur le socle après montage dudit mécanisme sur la carte.According to a particular feature, the aforementioned mechanism is supported by a flange comprising latching means cooperating with complementary latching means provided on the base to ensure at least partly the fixing of the mechanism on the base after mounting said mechanism on the map.

Selon une autre caractéristique particulière, le boîtier du tore est agencé par rapport à la carte, de telle manière que ce boîtier coopère avec les parois du socle de manière à assurer une isolation les unes par rapport aux autres, des tresses primaires reliant directement les contacts mobiles aux bornes de sortie de l'appareil.According to another particular characteristic, the housing of the toroid is arranged with respect to the card, so that this housing cooperates with the walls of the base so as to insure against each other, primary braids directly connecting the contacts mobile devices at the output terminals of the device.

Selon une caractéristique particulière, le mécanisme précité est fixé par enfichage sur la carte.According to a particular characteristic, the aforementioned mechanism is fixed by plugging on the card.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure 1 est une vue en perspective, illustrant d'une part, une carte électronique équipée d'un dispositif de déclenchement différentiel, et d'autre part, un mécanisme d'ouverture des contacts, préalablement au montage dudit mécanisme sur ladite carte,
  • La figure 2 est une vue en perspective, illustrant le montage dans le socle de l'appareil, d'une carte électronique équipée à la fois d'un mécanisme d'ouverture et de fermeture des contacts et d'un dispositif de déclenchement,
  • La figure 3 est une vue en perspective du même appareil en position montée, préalablement au montage du ressort d'arrachement dans le socle,
  • La figure 4 est une vue en coupe longitudinale parallèle au plan principal dudit appareil, et illustrant les composants internes dudit appareil, et
  • La figure 5 est également une vue en coupe longitudinale, mais suivant un plan perpendiculaire au plan principal de l'appareil.
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • FIG. 1 is a perspective view, illustrating, on the one hand, an electronic card equipped with a differential release device, and, on the other hand, a mechanism for opening the contacts, prior to mounting said mechanism on said card,
  • FIG. 2 is a perspective view, illustrating the mounting in the base of the apparatus, of an electronic card equipped with both a mechanism for opening and closing the contacts and a triggering device,
  • FIG. 3 is a perspective view of the same device in the mounted position, prior to mounting the tear-off spring in the base,
  • FIG. 4 is a longitudinal sectional view parallel to the main plane of said apparatus, and illustrating the internal components of said apparatus, and
  • Figure 5 is also a longitudinal sectional view, but in a plane perpendicular to the main plane of the apparatus.

Sur les figures 2 à 5, on voit un interrupteur différentiel électronique D destiné à être placé sur un réseau électrique de manière à le protéger contre les défauts d'isolement à la terre. De manière connue en soi, cet appareil est logé dans un boîtier de forme sensiblement parallélépipédique comportant un socle 1 et un couvercle (non visible sur les dessins). Cet interrupteur comporte, comme plus particulièrement illustré sur la figure 1, un dispositif de déclenchement différentiel 2 monté sur une carte électronique 3, ladite carte 3 comportant un circuit électronique de traitement à source d'alimentation auxiliaire et un mécanisme 4 d'ouverture et de fermeture des contacts 5,6. Cet ensemble est monté (fig.2) dans un compartiment 7 du socle 1 du boîtier isolant de l'interrupteur destiné à loger des bornes de raccordement d'entrée 8 et de sortie 9 pour constituer un interrupteur différentiel D.In FIGS. 2 to 5, an electronic differential switch D is shown intended to be placed on an electrical network so as to protect it against ground insulation faults. In a manner known per se, this apparatus is housed in a substantially parallelepiped shaped housing comprising a base 1 and a cover (not visible in the drawings). This switch comprises, as more particularly illustrated in FIG. 1, a differential tripping device 2 mounted on an electronic card 3, said card 3 comprising an auxiliary power supply processing electronic circuit and a mechanism 4 for opening and closing contacts 5.6. This assembly is mounted (FIG. 2) in a compartment 7 of the base 1 of the isolator housing of the switch intended to house input connection terminals 8 and output terminals 9 to constitute a differential switch D.

Le dispositif de déclenchement différentiel 2 comporte de manière connue en soi, un transformateur totalisateur 10 et un relais électromagnétique de déclenchement 11. Le transformateur totalisateur 10 constitue un détecteur de courant différentiel et est pourvu d'un circuit magnétique en forme de tore 12, ayant un orifice central 13 susceptible d'être traversé par les enroulements primaires 14,15 constitués par les conducteurs de puissance du réseau basse tension à protéger. Un enroulement secondaire 16 est bobiné sur le tore 12, et est connecté électriquement à une résistance de mesure du circuit électronique.The differential tripping device 2 comprises, in a manner known per se, a totalizing transformer 10 and an electromagnetic tripping relay 11. The totalizing transformer 10 constitutes a differential current detector and is provided with a toroidal magnetic circuit 12 having a central orifice 13 may be traversed by the primary windings 14,15 constituted by the power conductors of the low voltage network to be protected. A secondary winding 16 is wound on the core 12, and is electrically connected to a measurement resistor of the electronic circuit.

Le relais électromagnétique de déclenchement 11 est formé par un actionneur à bobine d'émission de courant 17. La bobine tubulaire 17 est portée par un support, et comporte de manière connue à l'intérieur d'un alésage, un noyau magnétique mobile (non visible sur les figures) accouplé à un organe d'actionnement. La bobine du relais est connectée à deux bornes du circuit électronique.The electromagnetic tripping relay 11 is formed by a current-transmitting coil actuator 17. The tubular coil 17 is carried by a support, and comprises, in a known way within a bore, a movable magnetic core (not visible in the figures) coupled to an actuating member. The relay coil is connected to two terminals of the electronic circuit.

En se référant aux figures 2 à 4, on voit que le socle 1 du boîtier comporte un logement 18 destiné à recevoir un ressort 19 dit ressort d'arrachement apte à rappeler les contacts mobiles 5,6 en position d'ouverture après le déclenchement de l'appareil. En fonctionnement, et comme visible sur la figure 4, ce ressort 19 est en appui par ses deux extrémités opposées 19a,19b respectivement sur une paroi la du socle 1 du boîtier, et sur un arbre 20 dit porte-contact supportant les contacts mobiles 5,6. Conformément à l'invention, ce logement 18 présente un orifice d'accès 21 situé de manière à permettre le montage du ressort 19 après le montage de l' ensemble constitué de la carte 3 équipé du mécanisme 4 et du dispositif de déclenchement 2 à l'intérieur du socle 1. Selon une réalisation particulière de l'invention, cet orifice 21 est situé à l'intersection entre d'une part, la partie en saillie s (fig.4) logeant le mécanisme d'ouverture et de fermeture 4 et d'autre part, l'une 22 des faces de raccordement 22,23 de l'appareil.Referring to FIGS. 2 to 4, it can be seen that the base 1 of the housing includes a housing 18 intended to receive a spring 19 called a pull spring capable of biasing the movable contacts 5, 6 in the open position after the tripping of the device. In operation, and as visible in Figure 4, the spring 19 is supported by its two opposite ends 19a, 19b respectively on a wall of the base 1 of the housing, and on a shaft 20 said contact carrier supporting the movable contacts 5 6. According to the invention, this housing 18 has an access port 21 located so as to allow the mounting of the spring 19 after assembly of the assembly consisting of the card 3 equipped with the mechanism 4 and the trigger device 2 to the Inside the base 1. According to a particular embodiment of the invention, this orifice 21 is located at the intersection between, on the one hand, the projecting part s (FIG. 4) housing the opening and closing mechanism 4 and on the other hand, one 22 of the connecting faces 22,23 of the apparatus.

Le montage de l'appareil s'effectue de la manière suivante. Tout d'abord, les conducteurs primaires 14,15 sont introduits à travers le tore 12 (fig.5). Ces primaires 14,15 sont raccordés, par l'une de leur extrémités 14a,15a, respectivement aux bornes de raccordement de sortie 9 de l'appareil, et par leur extrémité opposée 14b,15b, respectivement aux deux contacts mobiles 5,6. Le mécanisme 4 d'ouverture et de fermeture des contacts est ensuite pluggé ou enfiché sur la carte 3 (fig.1), puis l'ensemble est introduit dans l'ouverture du socle 1. La fixation de cet ensemble sur le socle 1 est réalisée d'une part, par encliquetage du mécanisme 4 sur le socle 1 grâce à la présence d'un crochet 25 prévu sur le flasque 26 supportant le mécanisme 4, ledit crochet 25 étant apte à coopérer avec un élément d'encliquetage complémentaire 27 prévu sur le socle 1 et d'autre part, au moyen d'une vis (non représentée) traversant deux orifices 30,31 prévus respectivement dans le flasque 26 et dans le socle 1. Le ressort d'arrachement 19 peut alors être introduit (position b) dans le logement 18 du socle 1 par l'ouverture 21 prévue à cet effet dans le socle 1, comme illustré plus particulièrement sur la figure 4, jusqu'à la position représentée en (a). Dans cette dernière position (a), le ressort 19 est en appui d'une part, sur une paroi la appartenant au socle 1 et d'autre part, sur l'arbre porte-contact 20.The device is installed as follows. Firstly, the primary conductors 14, 15 are introduced through the torus 12 (FIG. These primaries 14,15 are connected, by one of their ends 14a, 15a, respectively to the output connection terminals 9 of the apparatus, and by their opposite end 14b, 15b respectively to the two movable contacts 5,6. The mechanism 4 for opening and closing the contacts is then plugged or plugged onto the card 3 (FIG. 1), then the assembly is inserted into the opening of the base 1. The attachment of this assembly to the base 1 is realized on the one hand, by snapping mechanism 4 on the base 1 thanks to the presence of a hook 25 provided on the flange 26 supporting the mechanism 4, said hook 25 being adapted to cooperate with a complementary latching element 27 provided on the base 1 and on the other hand, by means of a screw (not shown) passing through two orifices 30, 31 respectively provided in the flange 26 and in the base 1. The tearing spring 19 can then be inserted (position b) in the housing 18 of the base 1 through the opening 21 provided for this purpose in the base 1, as shown more particularly in Figure 4, to the position shown in (a). In this latter position (a), the spring 19 is supported on the one hand, on a wall belonging to the base 1 and on the other hand, on the contact-holder shaft 20.

Dans cette position, comme on le voit en particulier en se reportant à la figure 5, le boîtier 29 du tore 12 est agencé par rapport à la carte 3 de telle manière que ce boîtier 29 coopère avec les parois 28 du socle 1 de manière à assurer une isolation, les unes par rapport aux autres, des tresses primaires 14,15 reliant directement les contacts mobiles 5,6 aux plages de sortie 9 de l'appareil. On assure ainsi une isolation des conducteurs actifs 14,15 entre eux à moindre coût.In this position, as can be seen in particular with reference to FIG. 5, the housing 29 of the core 12 is arranged with respect to the card 3 in such a way that this housing 29 cooperates with the walls 28 of the base 1 so as to insulating, with respect to each other, primary braids 14,15 directly connecting the movable contacts 5,6 to the output ranges 9 of the apparatus. This ensures insulation of the active conductors 14,15 between them at lower cost.

Ainsi, grâce à l'invention, il n'est pas nécessaire de monter le ressort d'arrachement des contacts avant le mécanisme d'où il résulte un assemblage plus aisé de l'interrupteur car le socle peut recevoir une carte électronique connectée à l'avance sur le mécanisme et qui contienne donc l'ensemble de la fonction différentielle.Thus, thanks to the invention, it is not necessary to mount the contact tear spring before the mechanism which results in easier assembly of the switch because the base can receive an electronic card connected to the 'advance on the mechanism and which thus contains the whole of the differential function.

Bien entendu, l'invention n'est pas limitée aux modes de réalisations décrits et illustrés qui n'ont été donnés qu'à titre d'exemple. L'invention s'applique aussi bien aux interrupteurs qu'aux disjoncteurs.Of course, the invention is not limited to the embodiments described and illustrated which have been given by way of example. The invention applies both to switches and circuit breakers.

Claims (5)

  1. Differential electrical protection apparatus in particular a switch comprising, housed in an insulating case comprising a body and a cover, a mechanism for opening and closing the contacts actuated by a handle, a differential trip device able to be actuated by a tripping means and mechanically connected to said mechanism so as to cause opening of the contacts of the apparatus when an insulation fault occurs in the circuit to be protected, the above-mentioned trip device being mounted on a data processing printed circuit board, the movable contact(s) of the apparatus being kept in a closed position by a latching system able to be unlatched by actuating the above-mentioned tripping means and being urged to an open position after tripping by a spring housed in a housing belonging to the body, said spring bearing via its two opposite ends respectively on a wall of the body and on the shaft bearing the movable contact(s),
    characterized in that the above-mentioned body (1) comprises an opening (21) enabling the above-mentioned spring (19) to be inserted in the above-mentioned housing (18) after the board (3) equipped with the differential trip device (2) has been fitted inside the body (1) of the case of the apparatus, on which board (3) the above-mentioned mechanism (4) has been previously fixed..
  2. Apparatus according to claim 1, the case of the apparatus comprising a front panel presenting, on each side of a salient part (s) housing the above-mentioned mechanism (4), two connection faces (22,23) housing the connection terminals (8,9) of the apparatus, characterized in that the above-mentioned opening (21) for insertion of the spring (19) is situated appreciably at the intersection between one (22) of the connection faces (22,23) and the above-mentioned salient part (s).
  3. Apparatus according to claim 1 or 2, characterized in that the above-mentioned mechanism (4) is supported by a flange (26) comprising clipping means (25) operating in conjunction with complementary clipping means (27) provided on the body (1) to at least partly perform fixing of the mechanism (4) onto the body (1) after said mechanism (4) has been fitted on the board (3).
  4. Apparatus according to any one of the foregoing claims, characterized in that the above-mentioned mechanism (4) is fixed by plugging onto the board (3).
  5. Apparatus according to any one of the claims 1 to 4, characterized in that the case (29) of a toroid (12) is arranged with respect to the board (3) in such a way that this case (29) cooperates with walls (28) of the body (1) so as to provide insulation from one another of the primary braids (14,15) directly connecting the movable contacts (5,6) to the output terminals (9) of the apparatus.
EP00410148A 2000-01-10 2000-12-07 Differential electric protection device, in particular a differential switch Expired - Lifetime EP1117115B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0000246A FR2803688B1 (en) 2000-01-10 2000-01-10 DIFFERENTIAL ELECTRICAL PROTECTION APPARATUS, IN PARTICULAR A DIFFERENTIAL SWITCH
FR0000246 2000-01-10

Publications (2)

Publication Number Publication Date
EP1117115A1 EP1117115A1 (en) 2001-07-18
EP1117115B1 true EP1117115B1 (en) 2006-08-23

Family

ID=8845751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00410148A Expired - Lifetime EP1117115B1 (en) 2000-01-10 2000-12-07 Differential electric protection device, in particular a differential switch

Country Status (4)

Country Link
EP (1) EP1117115B1 (en)
CN (1) CN1180450C (en)
AT (1) ATE337612T1 (en)
FR (1) FR2803688B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923939A1 (en) 2007-11-16 2009-05-22 Schneider Electric Ind Sas ELECTRIC CUTTING APPARATUS
US10286144B2 (en) 2011-06-23 2019-05-14 Debiotech S.A. Method and system for detecting malfunction of a MEMS micropump
CA2845883A1 (en) 2011-09-05 2013-03-14 Xylowatt S.A. Gasifier for a solid carbon fuel
JP6157390B2 (en) * 2014-03-20 2017-07-05 三菱電機株式会社 Earth leakage breaker
DE102022202311A1 (en) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Electronically switching modular device and insulated housing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648736A (en) * 1949-10-08 1953-08-11 Fed Electric Prod Co Automatic circuit breaker
FR2674986B1 (en) * 1991-04-08 1996-03-08 Hager Electro IMPROVED MODULAR SINGLE POLE CIRCUIT BREAKER AND MOUNTING METHOD THEREOF.
FR2686453B1 (en) * 1992-01-17 1994-04-08 Legrand DIFFERENTIAL SWITCH.

Also Published As

Publication number Publication date
CN1304155A (en) 2001-07-18
ATE337612T1 (en) 2006-09-15
FR2803688B1 (en) 2002-03-01
CN1180450C (en) 2004-12-15
EP1117115A1 (en) 2001-07-18
HK1038637A1 (en) 2002-03-22
FR2803688A1 (en) 2001-07-13

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