EP0281443B1 - Safety switch employing remotely controlled on/off positions - Google Patents

Safety switch employing remotely controlled on/off positions Download PDF

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Publication number
EP0281443B1
EP0281443B1 EP88400265A EP88400265A EP0281443B1 EP 0281443 B1 EP0281443 B1 EP 0281443B1 EP 88400265 A EP88400265 A EP 88400265A EP 88400265 A EP88400265 A EP 88400265A EP 0281443 B1 EP0281443 B1 EP 0281443B1
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EP
European Patent Office
Prior art keywords
contact
contacts
electromagnet
plane
fixed
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
EP88400265A
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German (de)
French (fr)
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EP0281443A1 (en
Inventor
Jacques Cohen
Pierre Lemarquand
Christian Pichard
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Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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Publication of EP0281443A1 publication Critical patent/EP0281443A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism

Definitions

  • the present invention relates to an electromechanical protection switch device with remote-controlled opening and closing of the contacts.
  • Such a device is not conveniently adaptable to a multi-pole protective switch device provided with contact bridges because of the volume occupied by the bridges and by the contact-holding part which houses the bridges, which volume is added to the occupied volume. by the trigger mechanism and the electromagnet.
  • the object of the present invention is in particular to provide a protective switch device with remote-controlled opening and closing of at least one contact bridge by using a simple arrangement and the space requirement of which is minimized, particularly in a direction parallel to (x) contact bridge (s).
  • Another purpose is to separate, in a very simple manner, the circuit breaker part and the contactor part of a protective switch device provided with at least one contact bridge.
  • the contact drive member subject to the armature of the electromagnet is a lever which is applied to a push button made of insulating material, integral with the contact bridge, this push button is also actuated by a movable rod according to the detection of overcurrents or reset operations.
  • the movable element of the electromagnet is coupled to a slide which extends parallel to the plane of symmetry and which constitutes the drive member.
  • the electric control electromagnet determines a simple cut; lec ontact of the bridge capable of being moved by the slide is a pseudo-fixed part of a first fixed contact, the contact bridge being applied, on the one hand, against the second fixed contact, on the other hand, against a stop following the opening of the pseudo-fixed part of the fixed contact.
  • the electric control electromagnet still determines a simple breaking; the contact of the bridge displaceable by the slide is one of the mobile contacts of the bridge, each contact bridge remaining in abutment, on the one hand against the fixed contact not associated with said mobile contact and tilting, on the other hand, with respect to this fixed contact under the effect of the thrust exerted parallel to the plane of symmetry by the slide following an electric opening command.
  • the slide comprises several pushers parallel to said plane of symmetry and each passing through a narrow space.
  • the remote control electromagnet determines a double cut;
  • the contact displaceable by the slide comprises the two movable contacts of the bridge, said contact bridge being displaceable parallel to the plane of symmetry via a lever applicable on said bridge and articulated on the slide, following an electrical command, the contact carrier comprising an elastically extensible rod to ensure the independence of the movements of the trigger mechanism and of the lever.
  • the protective switch device 10 illustrated in FIGS. 1 to 3 is a multipole device - in this three-pole example - but which can also be two- or four-pole.
  • the device is double cut in the event of manual tripping or on fault (circuit breaker mode) and it is single cut in the event of remote-controlled opening (contactor mode).
  • Each pole has a molded housing 11 provided with a base 12 and a cover 13 having a nose 13a having a normalized width L of 45 mm usual for low voltage electrical equipment.
  • Each pole includes an interruptible current path between two terminals 14,15 suitable for the connection of external conductors not shown.
  • To the terminals 14,15 are connected respective flat connection pieces 16,17 which are electrically connected each to a fixed contact 18,19 disposed on a respective fixed contact piece which ends in a C shape.
  • the current flow between the two contacts 18,19 is ensured or interrupted by means of a mobile contact bridge 22 of plane of symmetry XX carrying two mobile contacts 20,21 cooperating with the fixed contacts 18, respectively 19.
  • the movable bridges 22 of the various poles are housed in a contact-carrying part 23 and are each biased by a respective contact pressure spring 24; the contact carrier is movable in a direction contained in the plane X-X.
  • each side of the bridge there is provided on each side of the bridge a block of fins 26, 27 for arc cutting.
  • Each connection piece 17 is linked to a bimetal thermal trip device 30 arranged in series with a magnetic trip device 31.
  • the mobile element 32 of the trip device 31 can actuate a lifting beam 33 common to the various poles and integral with a pivoting lever 34 which penetrates in a compartment 35 housing a trigger lock mechanism 36 in order to actuate the latter; the compartment 35 allows the mounting of a trigger push-button or stop button 37 and a reset / reset push-button or start button 38.
  • Each bimetallic strip 30 is capable of actuating a common spreader 39 having a lever 39a which enters the compartment 35 to act on the lock 36.
  • Two housings A, B substantially of the same volume are formed between, on the one hand, the compartment 35 and, on the other hand, the modular nose 13a of the housing 11. It should be noted that the compartment 35 is narrow in the direction YY perpendicular to the plane XX.
  • the housing A In the housing A are arranged the thermal and magnetic triggers 31 and the corresponding horns 33, 39.
  • an electromagnet 40 for electrical control having an axis of symmetry X1-X1 parallel to X-X.
  • the electromagnet 40 is of flat shape parallel to the plane X-X (FIG. 1) and it is provided with a coil 47 and a movable armature of magnetic circuit, in this case a movable flat core 41.
  • the core is integral with a mobile assembly or insulating slide 42 urged by at least one spring 43 towards an open position of the contacts (see FIG. 4).
  • the frame could also be connected to the slide via a pivoting lever.
  • the electromagnet 40 shown in the remote-controlled closed position of the contacts, is of the bistable type and comprises a fixed U-shaped magnetic circuit, 44 on the core of which is fixed a magnet pad. permanent 45.
  • the latter allows the mobile core 41 to be hung in the base position in FIG. 4- and to immobilize the slide 42 against the force of the springs 43 in the indicated position for closing the contacts.
  • the slider 42 is, for this purpose, directly coupled to pseudo-fixed contact pieces 18a which constitute all or part of the fixed contact pieces of the various poles.
  • a flexible electrical connection 46 such as a braid is provided between the connection piece 16 and the pseudo-fixed contact piece 18a.
  • the mobile core 42 lifts after being detached from the magnet 45 after having received a current pulse producing a flux antagonistic to that of the magnet; in this way, the slide 42 rises with the pseudo-fixed contact 18a which separates from the movable contact 20. The latter is raised in fact slightly up to the stop of the contact bridges 22 against the contact carrier 23.
  • the electromagnet 40 comprises two opposite attachment magnets and it is then devoid of the springs 43.
  • the switching device is simple cut-off in the case of a remote control and has an advantageously bistable electromagnet with permanent magnet and "high" hooking which will be described with reference to FIG. 9.
  • the slider 42 is coupled to or secured to an angled drive comb 50 provided with insulating pushers 51 parallel to the plane X1-X1 and located between the latter and the plane XX; each pusher 51 is associated with a respective contact bridge and passes through a narrow space 52 formed between the contact carrier 23 and the respective fixed contact 18; another pusher 51 can be assigned to the control of an additive switch.
  • the remote-controlled opening of the contacts is caused by the displacement of the core 41 and takes place with a tilting of the contact bridge 22 around the fixed contact bridge 19 situated opposite the electromagnet 40 relative to on plane XX.
  • the tilting of the bridge is accompanied by the crushing of the contact pressure spring 24.
  • the springs 43 exert a force greater than the contact pressure, so that each release of the electromagnet corresponds to the opening of the contacts.
  • the circuit breaker device is double cut in the event of a remote control and has a flat electromagnet, for example of the type illustrated in FIG. 9.
  • the slide 42 of the electromagnet is articulated at its lower end to a lever 60 mounted pivoting about an axis 61 fixed relative to the housing.
  • the lever 60 is applied at an intermediate point along its length to a surface 62 of the contact carrier 23.
  • the contact carrier has the particularity of comprising an elastically extensible rod to ensure the independence of the movements of the lock of the circuit breaker and of the lever 60.
  • the elastic rod comprises in the present embodiment, two mutually displaceable parts of the contact carrier and an intermediate spring of compression 63.
  • the spring 63 is housed in a guide 64 of the lower part 65 of the contact carrier between a support 66 of this lower part and a support 67 of the upper part 68 of the contact carrier.
  • This upper part is a link surrounded by the spring 63 and guided by the lower part 65 and it has a head 69 for connection with the lock of the circuit breaker device.
  • This embodiment of the contact carrier makes it possible to obtain the desired separation while being compact.
  • the flat electromagnet shown in Figure 9 is suitable for the two embodiments of Figures 5,6 and 7,8. It is shown in the open state of the contacts and differs slightly from the electromagnet of Figure 4 in that the core is hung in the high position in the operating state of the device and is pushed back in the low position. in the device off state.
  • the permanent attachment magnet 45 is therefore located in the upper part of the electromagnet against the core of the inverted U of the fixed magnetic circuit, while the springs 43 tend to push the moving element 42 down.
  • Figures 10 to 13 show in a bipolar circuit breaker device according to Figures 7 and 8 the contact carrier 23 and the lever 60 in the following respective states: open contacts with closed circuit breaker and open contactor (Figure 10); contacts closed with circuit breaker closed and contactor closed ( Figure 11); open contacts with open circuit breaker and open contactor (Figure 12); contacts open with circuit breaker open and contactor closed ( Figure 13).
  • the lever 60 comprises two parallel arms 70, 71 applicable on the bearing surfaces 62 of the lower part 65 of the contact carrier on either side of the guide 64 of the spring 63. It is of course possible to design carriers contacts with different elastic connecting rods, for example with central lever and two lateral springs; the compression spring 63 can be replaced by a tension spring.
  • circuit breaker of Figures 7 and 8 operates as described below.
  • Figure 12 shows the case where an opening remote control is added to a manual trigger or overcurrent.
  • the contact carrier being brought to the same position as in FIG. 13, the lever 60 descends without coming to bear on it because the stroke of the contact carrier in circuit breaker mode is slightly greater than its stroke in contactor mode.
  • a member for forcing the core 41 of the electromagnet can be provided.
  • This member is constituted for example by a part of the slide 42 accessible by a recess 70 of the front face of the device. It makes it possible to force the opening of the contact bridges 22.
  • a similar device can be provided in the embodiment of FIGS. 1 to 3 by means of the provision of an appropriate return lever to transform a downward movement exerted via the recess 70 in upward movement of the slide.
  • the accessible slide part can also serve as a visible status display element via the recess 70.
  • a device for electrical control by pulses of the previously described bistable electromagnet can be integrated into the housing 11 and arranged to transmit bidirectional control pulses to the coil of the electromagnet.
  • the electromagnet can be monostable in order to keep the contacts closed or open when its coil is energized.
  • FIGS. 14 and 15 Two embodiments of the apparatus using monostable electromagnets are thus represented in FIGS. 14 and 15.
  • a monostable electromagnet requires a larger magnetic circuit and a coil than a bistable electromagnet due holding current.
  • the electromagnet 80 is not housed in the nose of the device, but has a core mobile 81 of axis XI-XI parallel to the plane XX and integral with a comb-shaped slide 82 whose fingers 83 pass parallel to the plane XX in a narrow space 84 between the contact carrier 23 and the contact piece 18.
  • the electromagnet 90 is not housed in the nose of the device and has a movable core 91 of axis X2-X2 perpendicular to the plane XX and actuating via a return lever 94 a slide in comb shape 92, the fingers 93 of which pass parallel to the plane XX in the narrow space 84.
  • the slides or the pushing fingers are of course suitably guided in their movement parallel to the plane X-X.
  • the slides 42, 82, 92 especially when they are formed in one piece with the tilting fingers of the contact bridges, are advantageously constituted by thin pieces, for example strips or blades, whose thinness allows the fingers to cross the spaces 52 without damaging repercussions on the size of the device.

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  • Breakers (AREA)
  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

La présente invention concerne un appareil interrupteur de protection électromécanique à ouverture et fermeture télécommandables des contacts.The present invention relates to an electromechanical protection switch device with remote-controlled opening and closing of the contacts.

De tels appareils interrupteurs de protection sont bien connus. En particulier, d'après le brevet FR-2 573 571, on sait cumuler dans un même appareil disjoncteur une fonction de protection en cas de surintensité (mode disjoncteur) et une fonction de commande d'ouverture à distance (mode contacteur) ; ces fonctions de protection et de commande sont assurées respectivement par un mécanisme à déclenchement libre et par un électro-aimant spécifique de commande, agissant indépendamment sur un même ensemble de contacts séparables de l'appareil.Such protective switch devices are well known. In particular, according to patent FR-2,573,571, it is known to combine in the same circuit breaker device a protection function in the event of overcurrent (circuit breaker mode) and a remote opening control function (contactor mode); these protection and control functions are provided respectively by a free trigger mechanism and by a specific control electromagnet, acting independently on the same set of contacts separable from the device.

Un tel dispositif n'est cependant pas commodément adaptable à un appareil interrupteur de protection multipolaire muni de ponts de contact en raison du volume occupé par les ponts et par la pièce porte-contact qui loge les ponts, lequel volume s'ajoute au volume occupé par le mécanisme déclencheur et l'électro-aimant.However, such a device is not conveniently adaptable to a multi-pole protective switch device provided with contact bridges because of the volume occupied by the bridges and by the contact-holding part which houses the bridges, which volume is added to the occupied volume. by the trigger mechanism and the electromagnet.

Il en est de même pour le disjoncteur décrit dans le brevet US-A-4 604 596. Dans ce disjoncteur, la palette ou le noyau d'un électro-aimant polarisé est lié à un bras portant un contact pseudo-fixe. Ce contact peut ainsi être rétracté par l'électro-aimant agissant en mode contacteur sans interaction avec le mécanisme de déclenchement brusque. L'agencement d'un tel disjoncteur est toutefois spécifique d'un appareillage de faible dimension transversale.It is the same for the circuit breaker described in US-A-4,604,596. In this circuit breaker, the paddle or the core of a polarized electromagnet is linked to an arm carrying a pseudo-fixed contact. This contact can thus be retracted by the electromagnet acting in contactor mode without interaction with the abrupt tripping mechanism. The arrangement of such a circuit breaker is, however, specific to a device of small transverse dimension.

La présente invention a notamment pour but de réaliser un appareil interrupteur de protection à ouverture et fermeture télécommandables d'au moins un pont de contact en recourant à un agencement simple et dont l'encombrement soit minimisé, particulièrement dans une direction parallèle au(x) pont(s) de contact.The object of the present invention is in particular to provide a protective switch device with remote-controlled opening and closing of at least one contact bridge by using a simple arrangement and the space requirement of which is minimized, particularly in a direction parallel to (x) contact bridge (s).

Elle a pour autre but de désolidariser, d'une manière très simple, la partie disjoncteur et la partie contacteur d'un appareil interrupteur de protection muni d'au moins un pont de contact.Another purpose is to separate, in a very simple manner, the circuit breaker part and the contactor part of a protective switch device provided with at least one contact bridge.

Selon EP-A-0 179 677, on connait déjà un dispositif de commutation pouvant être agencé en appareil de protection électromécanique à ouverture et fermeture télécommandables d'un ensemble de circuits, comprenant dans un boîtier :

  • au moins un chemin de courant interruptible,
  • un dispositif de déclenchement manuel ou de surintensité muni d'un mécanisme de déclenchement relié, d'une part, à l'ensemble de contacts et, d'autre part, à un déclencheur magnétique et/ou thermique, celui-ci commandant le mécanisme pour ouvrir l'ensemble de contacts,
  • un organe de réenclenchement pour refermer l'ensemble de contacts, et
  • un dispositif de commande électrique comportant un électro-aimant muni d'un élément mobile en réponse à une commande électrique d'ouverture ou de fermeture et un organe d'entraînement assujetti à l'élément mobile et susceptible d'entraîner au moins un contact pseudo-fixe ou mobile de l'ensemble de contacts,
    et dans lequel :
  • l'ensemble de contacts comprend au moins deux contacts fixes, reliés chacun à une borne respective de raccordement et au moins deux contacts mobiles associés chacun à l'un des contacts fixes et portés par un pont respectif de contact de plan de symétrie déplaçable selon une direction contenue dans le plan de symétrie, chaque pont de contact étant logé dans un porte-contact et étant sollicité vers une butée du porte-contact par un ressort de pression de contact,
  • le mécanisme de délcenchement s'étend au voisinage du plan de symétrie, et
  • l'électro-aimant du dispositif de commande électrique et le déclencheur magnétique et/ou thermique sont respectivement logés dans le boîtier de part et d'autre du mécanisme de déclenchement dans une direction perpendiculaire au plan de symétrie.
According to EP-A-0 179 677, there is already known a switching device which can be arranged as an electromechanical protection device with remote-controlled opening and closing of a set of circuits, comprising in a housing:
  • at least one interruptible current path,
  • a manual tripping or overcurrent device provided with a tripping mechanism connected, on the one hand, to the set of contacts and, on the other hand, to a magnetic and / or thermal trip device, the latter controlling the mechanism to open the contact set,
  • a reset member for closing the set of contacts, and
  • an electrical control device comprising an electromagnet provided with a movable element in response to a electric opening or closing control and a drive member subject to the movable element and capable of causing at least one pseudo-fixed or movable contact of the contact assembly,
    and in which:
  • the set of contacts comprises at least two fixed contacts, each connected to a respective connection terminal and at least two mobile contacts each associated with one of the fixed contacts and carried by a respective bridge of contact of plane of symmetry displaceable according to a direction contained in the plane of symmetry, each contact bridge being housed in a contact carrier and being biased towards a stop of the contact carrier by a contact pressure spring,
  • the release mechanism extends in the vicinity of the plane of symmetry, and
  • the electromagnet of the electrical control device and the magnetic and / or thermal trip unit are respectively housed in the housing on either side of the trip mechanism in a direction perpendicular to the plane of symmetry.

Selon ce document, l'organe d'entraînement des contacts assujetti à l'armature de l'électro-aimant est un levier qui s'applique sur un poussoir en matière isolante, solidaire du pont de contacts, ce poussoir est par ailleurs actionné par une tige mobile en fonction de la détection de surintensités ou de manoeuvres de réarmement.According to this document, the contact drive member subject to the armature of the electromagnet is a lever which is applied to a push button made of insulating material, integral with the contact bridge, this push button is also actuated by a movable rod according to the detection of overcurrents or reset operations.

Cette solution n'offre pas l'encombrement minimum recherché et ne fournit pas une manière simple de désolidariser la partie disjoncteur de la partie contacteur, puisque l'indépendance des mouvements du levier et de la tige n'est assurée qu'au prix d'un poussoir solidaire du pont de contact.This solution does not offer the minimum space required and does not provide a simple way to separate the circuit breaker part from the contactor part, since the independence of the movements of the lever and of the rod is only ensured at the cost of a pusher secured to the contact bridge.

Suivant l'invention, l'élément mobile de l'électro-aimant est attelé à un coulisseau qui s'étend parallèlement au plan de symétrie et qui constitue l'organe d'entraînement.According to the invention, the movable element of the electromagnet is coupled to a slide which extends parallel to the plane of symmetry and which constitutes the drive member.

Dans un premier mode de réalisation, avantageux par sa simplicité, l'électro-aimant de commande électrique détermine une simple coupure ; lec ontact du pont susceptible d'être déplacé par le coulisseau est une partie pseudo-fixe d'un premier contact fixe, le pont de contact étant appliqué, d'une part, contre le second contact fixe, d'autre part, contre une butée, consécutivement à l'ouverture de la partie pseudo-fixe du contact fixe.In a first embodiment, advantageous by its simplicity, the electric control electromagnet determines a simple cut; lec ontact of the bridge capable of being moved by the slide is a pseudo-fixed part of a first fixed contact, the contact bridge being applied, on the one hand, against the second fixed contact, on the other hand, against a stop following the opening of the pseudo-fixed part of the fixed contact.

Dans un deuxième mode de réalisation, simple et avantageux car le mode d'ouverture télécommandée des contacts ne modifie pas la chambre de coupure, l'électro-aimant de commande électrique détermine encore une simple coupure ; le contact du pont déplaçable par le coulisseau est l'un des contacts mobiles du pont, chaque pont de contact restant en appui, d'une part contre le contact fixe non associé audit contact mobile et basculant, d'autre part, par rapport à ce contact fixe sous l'effet de la poussée exercée parallèlement au plan de symétrie par le coulisseau consécutivement à une commande d'ouverture électrique.In a second embodiment, simple and advantageous since the remote-controlled opening mode of the contacts does not modify the breaking chamber, the electric control electromagnet still determines a simple breaking; the contact of the bridge displaceable by the slide is one of the mobile contacts of the bridge, each contact bridge remaining in abutment, on the one hand against the fixed contact not associated with said mobile contact and tilting, on the other hand, with respect to this fixed contact under the effect of the thrust exerted parallel to the plane of symmetry by the slide following an electric opening command.

Avantageusement, le coulisseau comprend plusieurs poussoirs parallèles audit plan de symétrie et traversant chacun un espace étroit.Advantageously, the slide comprises several pushers parallel to said plane of symmetry and each passing through a narrow space.

Dans un troisième mode de réalisation, l'électro-aimant de télécommande détermine une double coupure ; le contact déplaçable par le coulisseau comprend les deux contacts mobiles du pont, ledit pont de contact étant déplaçable parallèlement au plan de symétrie via un levier applicable sur ledit pont et articulé sur le coulisseau, consécutivement à une commande électrique, le porte-contact comportant une bielle élastiquement extensible pour assurer l'indépendance des mouvements du mécanisme de déclenchement et du levier.In a third embodiment, the remote control electromagnet determines a double cut; the contact displaceable by the slide comprises the two movable contacts of the bridge, said contact bridge being displaceable parallel to the plane of symmetry via a lever applicable on said bridge and articulated on the slide, following an electrical command, the contact carrier comprising an elastically extensible rod to ensure the independence of the movements of the trigger mechanism and of the lever.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre, faite en regard des dessins annexés.

  • La figure 1 est une vue en plan et en coupe partielle selon le plan II-II de la figure 2 d'un premier mode de réalisation d'appareil interrupteur de protection selon l'invention à simple coupure en mode contacteur ;
  • Les figures 2 et 3 représentent en élévation une coupe schématique de l'appareil de la figure 1 respectivement à l'état de fermeture et à l'état d'ouverture télécommandée des contacts ;
  • La figure 4 représente une vue en élévation d'une forme d'exécution d'un électro-aimant de télécommande adapté à l'appareil des figures 1 à 3 ;
  • Les figures 5 et 6 sont des vues similaires aux figures 2 et 3 d'un deuxième mode de réalisation d'appareil à simple coupure en mode contacteur ;
  • Les figures 7 et 8 sont des vues similaires aux figures 2 et 3 d'un troisième mode de réalisation d'appareil à double coupure en mode contacteur ;
  • La figure 9 montre en élévation une autre forme d'exécution de l'électro-aimant de télécommande adaptée aux appareils des figures 5 à 8 ;
  • Les figures 10 à 13 montrent schématiquement en coupe différentes positions d'un pont de contact appartenant à un appareil bipolaire du type illustré par les figures 7 et 8 ;
  • Les figures 14 et 15 représentent deux autres variantes de l'appareil selon l'invention.
Other characteristics and advantages of the present invention will emerge from the description which follows, given with reference to the appended drawings.
  • Figure 1 is a plan view and in partial section along the plane II-II of Figure 2 of a first embodiment of protective switch device according to the invention with simple breaking in contactor mode;
  • Figures 2 and 3 show in elevation a schematic section of the apparatus of Figure 1 respectively in the closed state and in the remote-controlled open state of the contacts;
  • 4 shows an elevational view of an embodiment of a remote control electromagnet adapted to the device of Figures 1 to 3;
  • Figures 5 and 6 are views similar to Figures 2 and 3 of a second embodiment of a single break device in contactor mode;
  • Figures 7 and 8 are views similar to Figures 2 and 3 of a third embodiment of a double break device in contactor mode;
  • Figure 9 shows in elevation another embodiment of the remote control electromagnet adapted to the devices of Figures 5 to 8;
  • Figures 10 to 13 schematically show in section different positions of a contact bridge belonging to a bipolar device of the type illustrated in Figures 7 and 8;
  • Figures 14 and 15 show two other variants of the apparatus according to the invention.

L'appareil interrupteur de protection 10 illustré sur les figures 1 à 3 est un appareil multipolaire -dans cet exemple tripolaire- mais qui peut aussi bien être bi- ou tétrapolaire. L'appareil est à double coupure en cas de déclenchement manuel ou sur défaut (mode disjoncteur) et il est à simple coupure en cas d'ouverture télécommandée (mode contacteur).The protective switch device 10 illustrated in FIGS. 1 to 3 is a multipole device - in this three-pole example - but which can also be two- or four-pole. The device is double cut in the event of manual tripping or on fault (circuit breaker mode) and it is single cut in the event of remote-controlled opening (contactor mode).

Il présente un boîtier moulé 11 muni d'un socle 12 et d'un couvercle 13 présentant un nez 13a ayant une largeur L normalisée de 45 mm usuelle pour les appareillages électriques basse tension. Chaque pôle comprend un chemin de courant interruptible entre deux bornes 14,15 aptes au raccordement de conducteurs extérieurs non figurés. Aux bornes 14,15 sont liées des pièces respectives plates de connexion 16,17 qui sont électriquement reliées chacune à un contact fixe 18,19 disposé sur une pièce respective de contact fixe qui se termine en forme de C. Le cheminement du courant entre les deux contacts 18,19 est assuré ou interrompu au moyen d'un pont de contact mobile 22 de plan de symétrie X-X portant deux contats mobiles 20,21 coopérant avec les contacts fixes 18, respectivement 19.It has a molded housing 11 provided with a base 12 and a cover 13 having a nose 13a having a normalized width L of 45 mm usual for low voltage electrical equipment. Each pole includes an interruptible current path between two terminals 14,15 suitable for the connection of external conductors not shown. To the terminals 14,15 are connected respective flat connection pieces 16,17 which are electrically connected each to a fixed contact 18,19 disposed on a respective fixed contact piece which ends in a C shape. The current flow between the two contacts 18,19 is ensured or interrupted by means of a mobile contact bridge 22 of plane of symmetry XX carrying two mobile contacts 20,21 cooperating with the fixed contacts 18, respectively 19.

Les ponts mobiles 22 des divers pôles sont logés dans une pièce porte-contact 23 et sont sollicités chacun par un ressort respectif de pression de contact 24 ; le porte-contact est déplaçable selon une direction contenue dans le plan X-X.The movable bridges 22 of the various poles are housed in a contact-carrying part 23 and are each biased by a respective contact pressure spring 24; the contact carrier is movable in a direction contained in the plane X-X.

Dans la zone de coupure, on prévoit de chaque côté du pont un bloc d'ailettes 26,27 de coupure d'arc.In the cut-off zone, there is provided on each side of the bridge a block of fins 26, 27 for arc cutting.

Chaque pièce de connexion 17 est liée à un déclencheur thermique à bilame 30 disposé en série avec un déclencheur magnétique 31. L'élément mobile 32 du déclencheur 31 peut actionner un palonnier 33 commun aux divers pôles et solidaire d'un levier pivotant 34 qui pénètre dans un compartiment 35 logeant un mécanisme à serrure de déclenchement 36 afin d'actionner celle-ci ; le compartiment 35 permet le montage d'un bouton-poussoir de déclenchement ou bouton arrêt 37 et d'un bouton-poussoir de réarmement/réenclenchement ou bouton marche 38. Chaque bilame 30 est susceptible d'actionner un palonnier commun 39 présentant un levier 39a qui pénètre dans le compartiment 35 pour agir sur la serrure 36. Deux logements A,B sensiblement de même volume sont ménagés entre, d'une part, le compartiment 35 et, d'autre part, le nez modulaire 13a du boîtier 11. Il convient de noter que le compartiment 35 est étroit dans la direction Y-Y perpendiculaire au plan X-X.Each connection piece 17 is linked to a bimetal thermal trip device 30 arranged in series with a magnetic trip device 31. The mobile element 32 of the trip device 31 can actuate a lifting beam 33 common to the various poles and integral with a pivoting lever 34 which penetrates in a compartment 35 housing a trigger lock mechanism 36 in order to actuate the latter; the compartment 35 allows the mounting of a trigger push-button or stop button 37 and a reset / reset push-button or start button 38. Each bimetallic strip 30 is capable of actuating a common spreader 39 having a lever 39a which enters the compartment 35 to act on the lock 36. Two housings A, B substantially of the same volume are formed between, on the one hand, the compartment 35 and, on the other hand, the modular nose 13a of the housing 11. It should be noted that the compartment 35 is narrow in the direction YY perpendicular to the plane XX.

Dans le logement A sont disposés les déclencheurs thermiques 30 et magnétiques 31 et les palonniers 33,39 correspondants. Dans le logement B est disposé, selon l'invention, un électro-aimant 40 de commande électrique présentant un axe de symétrie X1-X1 parallèle à X-X. L'électro-aimant 40 est de forme plate parallèlement au plan X-X (figure 1) et il est muni d'une bobine 47 et d'une armature mobile de circuit magnétique, dans ce cas un noyau mobile plat 41.In the housing A are arranged the thermal and magnetic triggers 31 and the corresponding horns 33, 39. In the housing B is arranged, according to the invention, an electromagnet 40 for electrical control having an axis of symmetry X1-X1 parallel to X-X. The electromagnet 40 is of flat shape parallel to the plane X-X (FIG. 1) and it is provided with a coil 47 and a movable armature of magnetic circuit, in this case a movable flat core 41.

Le noyau est solidaire d'un équipage mobile ou coulisseau isolant 42 sollicité par au moins un ressort 43 vers une position d'ouverture des contacts (voir figure 4). L'armature pourrait aussi être reliée au coulisseau via un levier pivotant.The core is integral with a mobile assembly or insulating slide 42 urged by at least one spring 43 towards an open position of the contacts (see FIG. 4). The frame could also be connected to the slide via a pivoting lever.

Dans la version de la figure 4, l'électro-aimant 40, représenté en position de fermeture télécommandée des contacts, est du type bistable et comporte un circuit magnétique fixe en U, 44 sur l'âme duquel est fixée une pastille d'aimant permanent 45. Ce dernier permet d'accrocher le noyau mobile 41 -en position base sur la figure 4- et d'immobiliser le coulisseau 42 contre l'effort des ressorts 43 dans la position indiquée de fermeture des contacts. Le coulisseau 42 est, à cet effet, directement attelé à des pièces de contact pseudo-fixes 18a qui constituent en totalité ou en partie les pièces de contact fixe des divers pôles. Une liaison électrique souple 46 telle qu'une tresse est prévue entre la pièce de connexion 16 et la pièce de contact pseudo-fixe 18a.In the version of FIG. 4, the electromagnet 40, shown in the remote-controlled closed position of the contacts, is of the bistable type and comprises a fixed U-shaped magnetic circuit, 44 on the core of which is fixed a magnet pad. permanent 45. The latter allows the mobile core 41 to be hung in the base position in FIG. 4- and to immobilize the slide 42 against the force of the springs 43 in the indicated position for closing the contacts. The slider 42 is, for this purpose, directly coupled to pseudo-fixed contact pieces 18a which constitute all or part of the fixed contact pieces of the various poles. A flexible electrical connection 46 such as a braid is provided between the connection piece 16 and the pseudo-fixed contact piece 18a.

Pour passer à la position d'ouverture télécommandée de la figure 3, le noyau mobile 42 se soulève aprés s'être décollé de l'aimant 45 après avoir reçu une impulsion de courant produisant un flux antagoniste à celui de l'aimant ; de la sorte, le coulisseau 42 monte avec le contact pseudo-fixe 18a qui se sépare du contact mobile 20. Celui-ci se soulève en fait légèrement jusqu'à la butée des ponts de contact 22 contre le porte-contact 23.To pass to the remote-controlled opening position of FIG. 3, the mobile core 42 lifts after being detached from the magnet 45 after having received a current pulse producing a flux antagonistic to that of the magnet; in this way, the slide 42 rises with the pseudo-fixed contact 18a which separates from the movable contact 20. The latter is raised in fact slightly up to the stop of the contact bridges 22 against the contact carrier 23.

Dans une variante bistable non représentée, l'électro-aimant 40 comprend deux aimants d'accrochage opposés et il est alors dépourvu des ressorts 43.In a bistable variant not shown, the electromagnet 40 comprises two opposite attachment magnets and it is then devoid of the springs 43.

Dans le mode de réalisation des figures 5 et 6, l'appareil interrupteur est à simple coupure en cas de télécommande et présente un électro-aimant avantageusement bistable à aimant permanent et à accrochage "haut" qui sera décrit en regard de la figure 9. Le coulisseau 42 est attelé à ou solidaire d'un peigne d'entraînement coudé 50 muni de poussoirs isolants 51 parallèles au plan X1-X1 et situés entre celui-ci et le plan X-X ; chaque poussoir 51 est associé à un pont respectif de contact et traverse un espace étroit 52 ménagé entre le porte-contact 23 et le contact fixe respectif 18 ; un autre poussoir 51 peut être affecté à la commande d'un interrupteur additif.In the embodiment of FIGS. 5 and 6, the switching device is simple cut-off in the case of a remote control and has an advantageously bistable electromagnet with permanent magnet and "high" hooking which will be described with reference to FIG. 9. The slider 42 is coupled to or secured to an angled drive comb 50 provided with insulating pushers 51 parallel to the plane X1-X1 and located between the latter and the plane XX; each pusher 51 is associated with a respective contact bridge and passes through a narrow space 52 formed between the contact carrier 23 and the respective fixed contact 18; another pusher 51 can be assigned to the control of an additive switch.

On constate que l'ouverture télécommandée des contacts est causée par le déplacement du noyau 41 et s'effectue avec un basculement du pont de contact 22 autour du pont de contact fixe 19 situé à l'opposé de l'électro-aimant 40 par rapport au plan X-X. Le basculement du pont s'accompagne de l'écrasement du ressort de pression de contact 24. Les ressorts 43 exercent un effort supérieur à la pression de contact, de sorte qu'à tout relâchement de l'électro-aimant correspond l'ouverture des contacts.It can be seen that the remote-controlled opening of the contacts is caused by the displacement of the core 41 and takes place with a tilting of the contact bridge 22 around the fixed contact bridge 19 situated opposite the electromagnet 40 relative to on plane XX. The tilting of the bridge is accompanied by the crushing of the contact pressure spring 24. The springs 43 exert a force greater than the contact pressure, so that each release of the electromagnet corresponds to the opening of the contacts.

Dans le mode de réalisation des figures 7 et 8, l'appareil disjoncteur est à double coupure en cas de télécommande et présente un électro-aimant plat par exemple du type illustré par la figure 9. Le coulisseau 42 de l'électro-aimant est articulé à son extrémité inférieure à un levier 60 monté pivotant autour d'un axe 61 fixe par rapport au boîtier. Le levier 60 est appliqué en un point intermédiaire de sa longueur sur une portée 62 du porte-contact 23. Le porte-contact a la particularité de comporter une bielle élastiquement extensible pour assurer l'indépendance des mouvements de la serrure du disjoncteur et du levier 60. La bielle élastique comprend dans le présent mode de réalisation, deux parties mutuellement déplaçables du porte-contact et un ressort intermédiaire de compression 63. Le ressort 63 est logé dans un guidage 64 de la partie inférieure 65 du porte-contact entre un appui 66 de cette partie inférieure et un appui 67 de la partie supérieure 68 du porte-contact. Cette partie supérieure est une biellette entourée par le ressort 63 et guidée par la partie inférieure 65 et elle présente une tête 69 de liaison avec la serrure de l'appareil disjoncteur. Cette réalisation du porte-contact permet d'obtenir la désolidarisation recherchée tout en étant peu encombrante.In the embodiment of FIGS. 7 and 8, the circuit breaker device is double cut in the event of a remote control and has a flat electromagnet, for example of the type illustrated in FIG. 9. The slide 42 of the electromagnet is articulated at its lower end to a lever 60 mounted pivoting about an axis 61 fixed relative to the housing. The lever 60 is applied at an intermediate point along its length to a surface 62 of the contact carrier 23. The contact carrier has the particularity of comprising an elastically extensible rod to ensure the independence of the movements of the lock of the circuit breaker and of the lever 60. The elastic rod comprises in the present embodiment, two mutually displaceable parts of the contact carrier and an intermediate spring of compression 63. The spring 63 is housed in a guide 64 of the lower part 65 of the contact carrier between a support 66 of this lower part and a support 67 of the upper part 68 of the contact carrier. This upper part is a link surrounded by the spring 63 and guided by the lower part 65 and it has a head 69 for connection with the lock of the circuit breaker device. This embodiment of the contact carrier makes it possible to obtain the desired separation while being compact.

L'électro-aimant plat représenté figure 9, est adapté aux deux modes de réalisation des figures 5,6 et 7,8. Il est figuré à l'état d'ouverture des contacts et diffère légèrement de l'électro-aimant de la figure 4 en ceci que le noyau est accroché en position haute à l'état marche de l'appareil et est repoussé en position basse à l'état arrêt de l'appareil. L'aimant permanent d'accrochage 45 est donc situé en partie haute de l'électro-aimant contre l'âme du U renversé du circuit magnétique fixe, tandis que les ressorts 43 tendent à repousser l'équipage mobile 42 vers le bas.The flat electromagnet shown in Figure 9, is suitable for the two embodiments of Figures 5,6 and 7,8. It is shown in the open state of the contacts and differs slightly from the electromagnet of Figure 4 in that the core is hung in the high position in the operating state of the device and is pushed back in the low position. in the device off state. The permanent attachment magnet 45 is therefore located in the upper part of the electromagnet against the core of the inverted U of the fixed magnetic circuit, while the springs 43 tend to push the moving element 42 down.

Les figures 10 à 13 représentent dans un appareil disjoncteur bipolaire conforme aux figures 7 et 8 le porte-contact 23 et le levier 60 dans les états respectifs suivants : contacts ouverts avec disjoncteur fermé et contacteur ouvert (figure 10) ; contacts fermés avec disjoncteur fermé et contacteur fermé (figure 11) ; contacts ouverts avec disjoncteur ouvert et contacteur ouvert (figure 12) ; contacts ouverts avec disjoncteur ouvert et contacteur fermé (figure 13).Figures 10 to 13 show in a bipolar circuit breaker device according to Figures 7 and 8 the contact carrier 23 and the lever 60 in the following respective states: open contacts with closed circuit breaker and open contactor (Figure 10); contacts closed with circuit breaker closed and contactor closed (Figure 11); open contacts with open circuit breaker and open contactor (Figure 12); contacts open with circuit breaker open and contactor closed (Figure 13).

Il convient de remarquer que le levier 60 comprend deux bras parallèles 70,71 applicables sur les portées 62 de la partie inférieure 65 du porte-contact de part et d'autre du guidage 64 du ressort 63. On peut bien entendu concevoir des porte-contacts à bielles élastiques différentes, par exemple à levier central et deux ressorts latéraux ; le ressort de compression 63 peut être remplacé par un ressort de traction.It should be noted that the lever 60 comprises two parallel arms 70, 71 applicable on the bearing surfaces 62 of the lower part 65 of the contact carrier on either side of the guide 64 of the spring 63. It is of course possible to design carriers contacts with different elastic connecting rods, for example with central lever and two lateral springs; the compression spring 63 can be replaced by a tension spring.

L'appareil disjoncteur des figures 7 et 8 fonctionne de la manière décrite ci-aprés.The circuit breaker of Figures 7 and 8 operates as described below.

On suppose que l'appareil est initialement dans l'état marche de la figure 11. Pour passer à l'état arrêt télécommandé de la figure 10, le levier 60 pivote en sens horaire en réponse à la descente de l'équipage mobile 42 (voir figure 8). Ce faisant, le levier 60 s'appuie sur les portées 62 du porte-contact 23. Les ponts de contact 22 viennent s'appliquer contre les butées 23a de la partie inférieure 65 du porte-contact sous l'effet des ressorts 24 de sorte que les contacts mobiles peuvent se séparer des contacts fixes, et le ressort 63 de la bielle élastique est comprimé entre l'appui 67 maintenu stationnaire avec la partie supérieure du porte-contact et l'appui 66 de la partie inférieure du porte-contact abaissée par le levier 60.It is assumed that the device is initially in the on state of FIG. 11. To pass to the remote-controlled stop state of FIG. 10, the lever 60 pivots clockwise in response to the descent of the mobile assembly 42 ( see figure 8). In doing so, the lever 60 rests on the bearing surfaces 62 of the contact carrier 23. The contact bridges 22 come to bear against the stops 23a of the lower part 65 of the contact carrier under the effect of the springs 24 so that the movable contacts can separate from the fixed contacts, and the spring 63 of the elastic rod is compressed between the support 67 kept stationary with the upper part of the contact carrier and the support 66 of the lower part of the contact carrier lowered by lever 60.

Lorsque le déclencheur magnétique 31 ou le déclencheur thermique 30 détecte une surintensité excessive, ou lorsque le bouton arrête 37 est actionné, la serrure 36 de l'appareil disjoncteur est actionnée et fait descendre la tête 69 de la partie supérieure 68 du porte-contact. Celui-ci passe donc de l'état de la figure 11 à l'état d'ouverture représenté figure 13. Le porte-contact descend sans subir d'extension élastique, au contraire du cas précédent. Les contacts fixes et mobiles se séparent tandis que la partie inférieure 65 du porte-contact se dégage du levier 60 (figure 13). Il convient d'observer qu'en cas d'actionnement manuel du bouton 37 l'ouverture des contacts s'effectue de manière certaine par appui direct de la partie 68 contre la partie 65 du porte-contact.When the magnetic trip device 31 or the thermal trip device 30 detects an excessive overcurrent, or when the stop button 37 is actuated, the lock 36 of the circuit breaker device is actuated and lowers the head 69 from the upper part 68 of the contact carrier. This therefore changes from the state of FIG. 11 to the opening state shown in FIG. 13. The contact carrier descends without undergoing elastic extension, unlike the previous case. The fixed and mobile contacts separate while the lower part 65 of the contact carrier emerges from the lever 60 (FIG. 13). It should be noted that when the button 37 is actuated manually, the contacts are opened in such a way certain by direct support of part 68 against part 65 of the contact carrier.

La figure 12 montre le cas où une télécommande d'ouverture s'ajoute à un déclenchement manuel ou de surintensité. Le porte-contact étant amené à la même position que sur la figure 13, le levier 60 descend sans venir s'appliquer sur lui car la course du porte-contact en mode disjoncteur est légèrement supérieure à sa course en mode contacteur.Figure 12 shows the case where an opening remote control is added to a manual trigger or overcurrent. The contact carrier being brought to the same position as in FIG. 13, the lever 60 descends without coming to bear on it because the stroke of the contact carrier in circuit breaker mode is slightly greater than its stroke in contactor mode.

Dans les formes d'exécution des figures 5,6 et 7,8, il peut être prévu un organe de forçage du noyau 41 de l'électro-aimant. Cet organe est constitué par exemple par une partie du coulisseau 42 accessible par un évidement 70 de la face avant de l'appareil. Il permet de forcer l'ouverture des ponts de contact 22. Un dispositif similaire peut être prévu dans la forme d'exécution des figures 1 à 3 moyennant la disposition d'un levier de renvoi approprié pour transformer un mouvement descendant exercé via l'évidement 70 en mouvement ascendant du coulisseau. La partie de coulisseau accessible peut également servir d'élément de visualisation d'état visible via l'évidement 70.In the embodiments of Figures 5,6 and 7,8, a member for forcing the core 41 of the electromagnet can be provided. This member is constituted for example by a part of the slide 42 accessible by a recess 70 of the front face of the device. It makes it possible to force the opening of the contact bridges 22. A similar device can be provided in the embodiment of FIGS. 1 to 3 by means of the provision of an appropriate return lever to transform a downward movement exerted via the recess 70 in upward movement of the slide. The accessible slide part can also serve as a visible status display element via the recess 70.

Un dispositif de commande électrique par impulsions de l'électro-aimant bistable précédemment décrit peut être intégré au boîtier 11 et agencé pour transmettre à la bobine de l'électro-aimant des impulsions bidirectionnelles de commande. En variante, l'électro-aimant peut être monostable afin de maintenir fermés -ou ouverts- les contacts lorsque sa bobine est alimentée.A device for electrical control by pulses of the previously described bistable electromagnet can be integrated into the housing 11 and arranged to transmit bidirectional control pulses to the coil of the electromagnet. As a variant, the electromagnet can be monostable in order to keep the contacts closed or open when its coil is energized.

Deux modes de réalisation de l'appareil utilisant des électro-aimants monostables sont ainsi représentés figures 14 et 15. Comme on le sait, un électro-aimant monostable nécessite un circuit magnétique et une bobine plus volumineux qu'un électro-aimant bistable en raison du courant de maintien. Sur la figure 14, l'électro-aimant 80 n'est pas logé dans le nez de l'appareil, mais présente un noyau mobile 81 d'axe XI-XI parallèle au plan X-X et solidaire d'un coulisseau en forme de peigne 82 dont les doigts 83 passent parallèlement au plan X-X dans un espace étroit 84 entre le porte-contact 23 et la pièce de contact 18.Two embodiments of the apparatus using monostable electromagnets are thus represented in FIGS. 14 and 15. As is known, a monostable electromagnet requires a larger magnetic circuit and a coil than a bistable electromagnet due holding current. In Figure 14, the electromagnet 80 is not housed in the nose of the device, but has a core mobile 81 of axis XI-XI parallel to the plane XX and integral with a comb-shaped slide 82 whose fingers 83 pass parallel to the plane XX in a narrow space 84 between the contact carrier 23 and the contact piece 18.

Sur la figure 15, l'électro-aimant 90 n'est pas logé dans le nez de l'appareil et présente un noyau mobile 91 d'axe X2-X2 perpendiculaire au plan X-X et actionnant via un levier de renvoi 94 un coulisseau en forme de peigne 92 dont les doigts 93 passent parallèlement au plan X-X dans l'espace étroit 84.In Figure 15, the electromagnet 90 is not housed in the nose of the device and has a movable core 91 of axis X2-X2 perpendicular to the plane XX and actuating via a return lever 94 a slide in comb shape 92, the fingers 93 of which pass parallel to the plane XX in the narrow space 84.

Les coulisseaux ou les doigts de poussée sont bien entendu convenablement guidés dans leur mouvement parallèle au plan X-X.The slides or the pushing fingers are of course suitably guided in their movement parallel to the plane X-X.

On notera que les coulisseaux 42, 82, 92 surtout lorsqu'ils sont formés d'une pièce avec les doigts de basculement des ponts de contact, sont avantageusement constitués par des pièces minces, par exemple des réglettes ou des lames, dont la faible épaisseur permet aux doigts de traverser les espaces 52 sans répercussion fâcheuse sur l'encombrement de l'appareil.It will be noted that the slides 42, 82, 92 especially when they are formed in one piece with the tilting fingers of the contact bridges, are advantageously constituted by thin pieces, for example strips or blades, whose thinness allows the fingers to cross the spaces 52 without damaging repercussions on the size of the device.

Claims (10)

  1. Electromechanical switching apparatus with remote controlled opening and closing of a set of contacts, including in a case (11) :
    - at least one switchable current path,
    - a manual tripping or overcurrent device having a tripping mechanism (36) connected both to the set of contacts (18, 24) and to a magnetic and/or thermal trip (30, 31), this latter controlling the mechanism so as to open the set of contacts,
    - a resetting member (36, 38) for closing the set of contacts again and
    - an electric control device, having an electromagnet (40) with an element (41) movable in response to an electric opening or closing order and a drive member secured to the movable element and capable of driving at least one pseudo-fixed contact or mobile contact of the set of contacts,
    and in which :
       said set of contacts comprises at least two fixed contacts (18, 19), each connected to a respective connection terminal (14, 15) and at least two mobile contacts (20, 21), each associated with one of the fixed contacts and carried by a respective contact bridge (22) with a plane of symmetry (X-X) movable in a direction contained in the plane of symmetry, each contact bridge being housed in a contact-holder (23) and urged towards a stop of the contact-holder by a contact pressure spring (24),
    - said tripping mechanism (36) extends in the vicinity of the plane of symmetry (X-X), and
    - the electromagnet (40) of the electric control device and the magnetic and/or thermal trip (30, 31) are housed respectively in the case on each side of the tripping mechanism in a direction (Y-Y) perpendicular to the plane of symmetry,
    characterized in that the movable element (41, 81, 91) of the electromagnet (40) is fixed to a slide (42, 82, 92) which extends parallel to the plane (X-X) and which forms the drive member.
  2. The apparatus according to claim 1,
    characterized in that the slide (42, 82, 92) comprises several pushers (51, 83, 93) which are parallel to the plane (X-X) and each pass through a narrow space (52, 84).
  3. The apparatus as claimed in claim 1 or 2,
    characterized by the fact that :
    - the electromagnet (40) is of the bistable type and includes :
    . a fixed magnetic circuit (44) having a permanent engagement magnet (45),
       a mobile core (41) made of a ferromagnetic material forming the mobile element and urged by at least one spring (43) towards a position distant from the permanent magnet,
    - the electric control device includes a circuit adapted for transmitting bidirectional control pulses to the coil (47) of the electromagnet (40).
  4. The apparatus as claimed in claim 1 or 2,
    characterized by the fact that :
    - the electromagnet (40) is of the bistable type and includes :
    . a fixed magnetic circuit (44) with two permanent engagement magnets,
    . a mobile core (41) made from a ferromagnetic material forming the mobile element,
    - the electric control device includes a circuit adapted for transmitting bidirectional control pulses to the coil (47) of the electromagnet (40).
  5. The apparatus as claimed in claim 1 or 2,
    characterized by the fact that said electromagnet (40) is of the monostable type.
  6. The apparatus as claimed in one of claims 1 to 5,
    characterized by the fact that a member is provided for forcing the mobile element (41) of the electromagnet (40), the forcing member being accessible through a recess (70) in the front face of the circuit breaker in a direction parallel to the plane (X-X).
  7. The apparatus as claimed in one of claims 1 to 6,
    characterized by the fact that the contact which can be moved by the slide (42) is a pseudo-fixed part (18a) of a first fixed contact (18), the contact bridge (22) being applied both against the second fixed contact (19) and a stop, following an opening of the pseudo-fixed part (18a) of the fixed contact (18).
  8. The apparatus according to one of claims 1 to 6,
    characterized by the fact that the contact which can be moved by the slide (42) is one (20) of the movable contacts (20, 21) of the bridge, each contact bridge (22) bearing on the fixed contact (19) which is not associated with said movable contact and rocking with respect to said fixed contact under the effect of the thrust exerted parallel to plane (X-X) by the slide, following an electric opening order.
  9. The apparatus according to one of claims 1 to 6,
    characterized by the fact that the contact which can be moved by the slide (42) comprises the two movable contacts (20, 21) of the bridge (22), said contact bridge being movable parallel to the plane (X-X) by a lever (60) applicable on said bridge and hinged to the slide (42), following an electric order, the contact-holder (23) comprising a resiliently extensible link for ensuring the independence of the movements of the tripping mechanism (36) and of the lever (60).
  10. The apparatus according to claim 9,
    characterized by the fact that the resiliently extensible link includes a compression spring (63) disposed between a lower part (65) of the contact-holder which houses the contact bridge (22) and an upper part (68) of the contact-holder cooperating with the tripping mechanism (36).
EP88400265A 1987-02-13 1988-02-05 Safety switch employing remotely controlled on/off positions Expired - Lifetime EP0281443B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8701818 1987-02-13
FR8701818A FR2611082B1 (en) 1987-02-13 1987-02-13 PROTECTIVE SWITCHING DEVICE WITH REMOTE OPENING AND CLOSING

Publications (2)

Publication Number Publication Date
EP0281443A1 EP0281443A1 (en) 1988-09-07
EP0281443B1 true EP0281443B1 (en) 1992-09-02

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Application Number Title Priority Date Filing Date
EP88400265A Expired - Lifetime EP0281443B1 (en) 1987-02-13 1988-02-05 Safety switch employing remotely controlled on/off positions

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US (1) US4855698A (en)
EP (1) EP0281443B1 (en)
JP (1) JPS63202816A (en)
KR (1) KR910005758B1 (en)
BR (1) BR8800616A (en)
DE (1) DE3874168T2 (en)
ES (1) ES2034284T3 (en)
FR (1) FR2611082B1 (en)
HK (1) HK138393A (en)
IN (1) IN171859B (en)
MX (1) MX163243B (en)
SG (1) SG57293G (en)

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KR920003958B1 (en) * 1988-10-06 1992-05-18 미쓰비시전기 주식회사 Remote-controlled circuit breaker
JPH02100230A (en) * 1988-10-06 1990-04-12 Mitsubishi Electric Corp Remotely operated type circuit breaker
KR920003957B1 (en) * 1988-10-17 1992-05-18 미쯔비시 덴끼 가부시기가이샤 Remote-controlled circuit breaker
JP2763573B2 (en) * 1989-03-28 1998-06-11 松下電工株式会社 Remote control breaker
FR2650437B1 (en) * 1989-07-27 1991-10-18 Telemecanique DOUBLE-BREAKING CONTACTOR
FR2669463B1 (en) * 1990-11-15 1995-05-12 Telemecanique PROTECTION SWITCH.
FR2673487B1 (en) * 1991-02-28 1993-10-29 Telemecanique PROTECTION SWITCH INCORPORATING A TRIGGERING MAGNETOTHERMAL SUB-ASSEMBLY.
FR2674370B1 (en) * 1991-03-21 1993-10-29 Telemecanique PROTECTIVE SWITCHING APPARATUS ACCOUPABLE TO A CONTROL MODULE AND / OR A SIGNALING MODULE.
FR2676592B1 (en) * 1991-05-13 1993-07-23 Telemecanique THERMAL AND MAGNETIC PROTECTION CURRENT SWITCHING APPARATUS.
FR2799574B1 (en) * 1999-10-11 2001-12-14 Schneider Electric Ind Sa CONTACTOR-CIRCUIT-BREAKER
KR20030058755A (en) * 2001-12-31 2003-07-07 엘지산전 주식회사 Remote control apparatus for circuit breaker
KR100623931B1 (en) * 2005-05-23 2006-09-15 강필구 Remote open and close device of circuit breaker attached a distributer box
DE102006055007A1 (en) * 2006-11-22 2008-05-29 Abb Ag Installation switching device with a double break
US7936239B2 (en) * 2008-04-15 2011-05-03 General Electric Company Breaker interlock system and method
US7982564B2 (en) * 2008-06-30 2011-07-19 Remy Technologies, Llc Starter solenoid with vibration resistant features
WO2010076403A1 (en) * 2008-12-19 2010-07-08 Schneider Electric Industries Sas Remote control device and remote-controlled circuit breaker including such a device
FR2940515B1 (en) * 2008-12-19 2010-12-24 Schneider Electric Ind Sas REMOTE CONTROL DEVICE AND REMOTE CONTROL CIRCUIT BREAKER EQUIPPED WITH SUCH A DEVICE
JP2011014313A (en) * 2009-06-30 2011-01-20 Panasonic Electric Works Co Ltd Dc circuit breaker
CN104319126B (en) * 2014-11-12 2018-12-21 上海奇佳电子有限公司 A kind of two-in-one switch
DE102016105341B4 (en) * 2016-03-22 2022-05-25 Eaton Intelligent Power Limited protective switching device
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Also Published As

Publication number Publication date
IN171859B (en) 1993-01-23
US4855698A (en) 1989-08-08
JPS63202816A (en) 1988-08-22
DE3874168D1 (en) 1992-10-08
KR910005758B1 (en) 1991-08-02
ES2034284T3 (en) 1993-04-01
KR880010451A (en) 1988-10-08
HK138393A (en) 1993-12-24
FR2611082B1 (en) 1993-05-28
BR8800616A (en) 1988-09-27
MX163243B (en) 1992-03-23
EP0281443A1 (en) 1988-09-07
FR2611082A1 (en) 1988-08-19
SG57293G (en) 1993-07-09
DE3874168T2 (en) 1993-01-21

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