EP0079820B2 - Contactor device with means for automatic interruption and with a local operating part - Google Patents

Contactor device with means for automatic interruption and with a local operating part Download PDF

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Publication number
EP0079820B2
EP0079820B2 EP82402021A EP82402021A EP0079820B2 EP 0079820 B2 EP0079820 B2 EP 0079820B2 EP 82402021 A EP82402021 A EP 82402021A EP 82402021 A EP82402021 A EP 82402021A EP 0079820 B2 EP0079820 B2 EP 0079820B2
Authority
EP
European Patent Office
Prior art keywords
lever
electromagnet
piece
contact
pusher
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
Application number
EP82402021A
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German (de)
French (fr)
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EP0079820B1 (en
EP0079820A1 (en
Inventor
Christian Thomas
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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Publication date
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Application filed by La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Priority to AT82402021T priority Critical patent/ATE11711T1/en
Publication of EP0079820A1 publication Critical patent/EP0079820A1/en
Publication of EP0079820B1 publication Critical patent/EP0079820B1/en
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Classifications

    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S200/00—Electricity: circuit makers and breakers
    • Y10S200/42—Contact welding considerations

Definitions

  • the invention relates to a contactor device comprising an electromagnet for controlling a multiplicity of power contacts and means for automatic opening of these contacts which react upon the appearance of overloads in a power circuit, of a share to separate, independently of the electromagnet, and using a magnetizable part and an overload coil placed in series in this circuit, a movable power contact (belonging to this circuit) of a fixed contact with which it cooperates, and to open on the other hand a control switch placed in series with the coil of the electromagnet, this switch being able to be opened by a local control member which is able to close the contacts.
  • the invention therefore proposes to provide a contactor device in which the above-mentioned drawbacks have been remedied, and in particular to inform the user about the state of the device, to reduce its volume, to guarantee a effective opening of the contacts in a very short time and to ensure operating stability when shocks or movements are developed by the electromagnet.
  • the invention proposes an apparatus' contactor comprising, in a manner analogous to that of the switch described in German patent DE-C-968 496, a magnet electro-control of a plurality of power contacts, and means for automatic opening of these contacts which react upon the appearance of overloads in an associated power circuit, on the one hand to separate, independently of the electromagnet, and using a magnetizable part attracted by an overload coil placed in series in this circuit, a movable power contact (belonging to this circuit) with a fixed contact with which it cooperates, and to open, on the other hand, a switch control placed in series with the solenoid coil, this switch can be opened by a local control member which is able to close the contacts, said movable power contact being subjected to the action of a tension spring to close it and being able to be separated from u fixed contact by means of a pusher on which the magnetizable part can act.
  • this contactor device is more particularly characterized in that said movable power contact is capable of being separated from the fixed contact by the action on the pusher, that is to say a movement coming from the armature of the electro -magnet, either of a lever struck by said magnetizable part when the latter is excited by said overload coil, this lever cooperating with a first eclipsable latch which is separated from the electromagnet, said first latch being able to maintain this' lever in a hooking position for which the movable contact is open, and having a first causing end.
  • this mechanism comprising a movable transmission part which is subjected to a return spring tending to bring it from a first visible stable position where the control switch is closed towards a second stable visible position where this switch is kept open.
  • the device illustrated in fig. 1 comprises in a housing 1 an electromagnet 2 having a yoke 3, an excitation coil 4 and a movable armature 5 subjected to the action of a return spring 6 to establish its rest position.
  • the armature 5 is associated with a control lever 11 capable of actuating, by lifting it, a pusher 12 of a power contact 13 further comprising a mobile contact 14 subjected to the action of a fixed spring 15 which tends to apply it to two fixed contacts 16, 17.
  • the pusher 12 which carries the movable contact 14 is guided by surfaces 1 '.
  • This contact 13 is mounted in series in a power circuit 18 placed between the supply and connection terminals 19, 20.
  • This circuit 18, which also includes an overload coil 21, represents one of the power circuits of the 'device which will include at least as many as the number of phases of the network which supplies it, and whose energy must be used by a load not shown; when several power circuits are implemented, a single lever 11 therefore actuates several pushers such as 12.
  • the overload coil 21 cooperates with a magnetizable striker 22 which is possibly held in the rest position by a weak spring 23, and which will be suddenly attracted if a very large current, for example a short-circuit current, crosses the circuit 18.
  • the striker 22 strikes a lever 24 retained by a spring 25, a first arm 24 'of which is placed opposite the pusher 12 so that the percussion is retransmitted to the latter, and that the movable contact 14 is opened very quickly by push-button 12.
  • This lock has an end 31 and a portion 32, the latter being capable of lifting, during the movement of the lock, an arm 33 belonging to an oscillating control lever 34 and held in the rest position against a stop 35 by a spring 36 .
  • This lever 34 has, on the one hand, an end 38, for example insulating, which operates the opening of the control switch 8 when the lever is moved from its rest position, and has, on the other hand, a hooking tooth 37 able to cooperate with a holding surface 39, for example an inclined ramp, belonging to a transmission part 40; this transmission part also has a bearing surface 41 and cooperates with a local control member shown diagrammatically at 42.
  • a thrust surface 43 for example carried by an inclined ramp, is placed on the transmission part 40 in a region 66 of the latter; this transmission part is also subjected to a compression spring 44 which tends to push it in the direction S towards a fixed stop 45 carried, for example, by the housing 1.
  • the transmission part 40 or even the control member locale 42 carry an index 71 moving opposite a scale 72 carrying marks such as F and 0.
  • the reference 71 When the device is put into service, the reference 71 is opposite position F and the transmission part 40 is retained in a corresponding stable position by the tooth 37 of the lever 34 at rest, so that, circuit 7 being closed, any control signal applied between 9 and 10 will cause the electromagnet 2 to be excited, the armature to be attracted 5, the spring to be tensioned 6, the lever 11 to tilt and the power contact to close 13, the latter being produced by the pressure spring 15.
  • the end 31, or the ends such as 31 when the apparatus comprises several power circuits are placed opposite the region 66 of the part 40 so as to be able to cooperate, when the time comes, with the ramp 43.
  • a first intermediate pusher could be placed between ends such as 31 and the ramp 43
  • a second intermediate pusher could be placed é between portions such as 32 and the arm 33 of the lever 34.
  • the coil 21 instantly attracts the striker 22 which switches the lever 24; this raises the pusher 12 which opens the contact 13, and simultaneously releases the latch 29 which moves upwards in the figure by bringing opposite the arm 26 a bearing surface 28 which prevents the lever 24 from returning to its position rest, so that the movable contact 14, which is moved very quickly, is kept in the open position by its pusher 12 and by the lever 24 independently of the lever 11 associated with the armature of the electromagnet.
  • the bolt 29 brings, on the one hand, the end 31 towards the ramp 43 (in dotted lines) and, on the other hand, causes the arm 33 of the lever 34 to be raised by the portion 32.
  • the opening of the switch 8 causes the electromagnet 2 to de-energize, the armature 5 to fall back and the lever 11 to tilt, which therefore approaches the pusher 12, held in the high position from its percussion; maintaining contact 13 in the open position is therefore confirmed by the state of rest of the electromagnet.
  • the part 40 moves rapidly in the direction S, towards the position 0, so that the ramp 43 will meet the end 31 and will push the latch 29 down when the part 40 is close to or reaches the stable position 0; as soon as the part 40 leaves its position F, the control switch is kept open by the support that the tooth 37 finds against the surface 41.
  • the device is therefore placed in a state of non-service 0, where the electromagnet cannot be excited and where the lever 24 and the latch 29 have been reset.
  • a new commissioning can be obtained by a voluntary action, for example manual, exerted on the member 42 and the part 40 in the direction S to the position F.
  • the reset action of the lock and of the lever does not occur during the travel of the transmission part going from position F to position 0, but during movement of this part going from position O to position F; in addition, a stable intermediate tripping position indicated by D is provided between position F and position 0 so that, when the transmission part 40 automatically moves from F to 0 following the appearance of a fault, it is stopped in a visible position D which informs the user that the device is in the open state, and that this opening results from the appearance of a fault in at least one circuit.
  • FIG. 4a Such a variant of the apparatus is shown in position F in FIG. 4a, where only the organs necessary for understanding have been represented.
  • a transmission part 40 ' comprises, as before the surfaces 39, 41, a return spring 44 which tends to move this part in the direction S towards a stop 45, and is associated with a control member 42.
  • the region 66 now comprises a rocking lever 47 which oscillates around a pivot 48 placed in this region and which cooperates with a spring 51 so as to assume a rest position, which is that shown, and in which this lever 47 is pressed against a stop 50 may or may not belong to this part 40 ′.
  • This lever has two successive surfaces 49a, 49 which are directed towards the end 31 and in such a way that, for position F, this end 31 is placed opposite the surface 49.
  • the elasticity of the spring 51 is chosen such that, when the latch 29 is released towards the top of the figure, the force of its own spring 30 is sufficient to raise the lever 47.
  • a voluntary action, for example manual, exerted in the direction S on the member 42 allows to place the part 40 'in the position 0; during this movement, a slight movement communicated downwards of the figure to the latch 29 by the bearing surface 68 is not sufficient to operate the reset (see fig. 4d).
  • the reset of the lock 29 is operated when the part 40 is brought from its position O towards the position D, and therefore towards the position F, in the direction S; the starting position for resetting is that also shown in fig. 4d.
  • the surface 49a whose inclination is different from that of the surface 49, is able to communicate at the end 31 a downward push, significant enough to overcome the force of the spring 30 and produce the reset of the lock 29 as in the previous embodiment.
  • This rearming occurs when the part 40 'is in a position R shown in dotted lines in FIG. 4th.
  • Figs. 2 and 3 represent third and fourth alternative embodiments of the invention, in which a lock 70 (having the same functions as the previous lock 29, in the context of its cooperation with the lever 24) has an end 69 which does not cooperate not directly with part 40 or respectively 47.
  • a second sudden release mechanism 52 is interposed between the first sudden release mechanism 46 and one or more latches 70 similar to the previous one 29.
  • This second mechanism 52 includes a rocker arm 61, a portion 53 of which has an end 60 capable of rocking a locking lever 76 against the action of a spring 59, so that a spout 77 of this lever 76 releases a pusher 54 which is armed by a spring 62;
  • this pusher 54 comprises, on the one hand, in its upper part, an end 55 and a portion 56 similar to the end 31 and to the portion 32 of the latch 29, and comprises, on the other hand, in its lower part, a surface 57 placed opposite a surface 58 belonging to the rocker arm 61.
  • a latch 70 lifts the rocker arm 61 which releases the pusher 54 upwards, the latter in turn co-operating through the portion 56 with the lever 34 to toggle the latter.
  • the rearming of the second abrupt trigger mechanism 52 occurs when the pusher 54 is pushed down in the figure and transmits its movement by cooperation of the surfaces 57, 58 to the rocker arm 61, the latter acting in turn on the end 69 of the latch 70 to restore it to a position where the spring 30 is armed.
  • this downward movement can itself be caused either by the ramp 43 if a transmission part such as 40 is used (see fig. 3), or by the inclined surface 49a if a transmission part such as 40 '(see fig. 2).
  • a device as seen in fig. also makes use of two trigger systems capable of each releasing the second sudden trigger mechanism 52 and necessary for separate categories of faults.
  • This pallet can, for example, be crossed by the striker 22 or cooperate with a face of the coil 21 which is not affected by the movements of the striker.
  • an auxiliary pusher 63 whose ends 64, 65 cooperate with this lever and this rocker arm.
  • the shape and the arrangement of the various movement transmission elements are given by way of nonlimiting examples, and it must be admitted that the guide surfaces, which are not shown, and which would provide the guidance moving parts in translation, could if necessary be established to guide these parts along curved paths.
  • the local control member 42 makes it possible to operate manually. its commissioning F or its decommissioning O.

Landscapes

  • Breakers (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Massaging Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Push-Button Switches (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Toys (AREA)
  • Control Of Electric Motors In General (AREA)
  • Keying Circuit Devices (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Contacts (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

A contactor apparatus is provided comprising automatic opening means and a local control member. This apparatus uses a transmission piece (40) associated with a sudden tripping mechanism (46) which is released by a bolt (29) held in position by means of a lever (24) which may be struck by a magnetizable part and adapted to maintain a power contact (13) open, this part assuming, after the appearance of a fault, visible positions so as to inform the user about the state of the apparatus. This apparatus is usable in installations where it is desired to protect the lines and the loads.

Description

L'invention concerne un appareil contacteur comportant un électro-aimant de commande d'une multiplicité de contacts de puissance et des moyens d'ouverture automatique de ces contacts qui réagissent lors de l'apparition de surcharges dans un circuit de puissance, d'une part pour séparer, indépendamment de l'électro-aimant, et à l'aide d'une pièce magnétisable et d'une bobine de surcharge placées en série dans ce circuit, un contact mobile de puissance (appartenant à ce circuit) d'un contact fixe avec lequel il coopère, et pour ouvrir d'autre part un interrupteur de contrôle placé en série avec la bobine de l'électro-aimant, cet interrupteur pouvant être ouvert par un organe de commande locale qui est apte à refermer les contacts.The invention relates to a contactor device comprising an electromagnet for controlling a multiplicity of power contacts and means for automatic opening of these contacts which react upon the appearance of overloads in a power circuit, of a share to separate, independently of the electromagnet, and using a magnetizable part and an overload coil placed in series in this circuit, a movable power contact (belonging to this circuit) of a fixed contact with which it cooperates, and to open on the other hand a control switch placed in series with the coil of the electromagnet, this switch being able to be opened by a local control member which is able to close the contacts.

Dans un appareil, connu par le document DE-C N° 738413, dont la construction générale répond à celle qui vient d'être définie ci-dessus, des moyens de commande locale aptes à informer un utilisateur sur l'état de l'appareil et à établir un mode de fonctionnement stable particulier n'ont pas été précisés ; par ailleurs, dans cet appareil connu, le contact fixe et le contact mobile sont l'un ou l'autre déplacés selon que l'ouverture est volontaire ou automatique, ce qui oblige à donner à la chambre de coupure, qui entoure généralement cette région, des dimensions relativement importantes ; de plus, la libération du contact mobile, qui se déplace lors de l'apparition d'un défaut, est opérée, d'une part, grâce à un ressort qui peut être insuffisant en cas de soudure des contacts et, d'autre part, en raison de l'effacement d'un crochet de maintien de ce contact lorsqu'il est frappé par le percuteur.In an apparatus, known from document DE-C No. 738413, the general construction of which corresponds to that which has just been defined above, local control means capable of informing a user about the state of the apparatus and to establish a particular stable mode of operation have not been specified; moreover, in this known device, the fixed contact and the movable contact are one or the other displaced depending on whether the opening is voluntary or automatic, which means that the breaking chamber, which generally surrounds this region, has to be given , relatively large dimensions; moreover, the release of the movable contact, which moves during the appearance of a fault, is effected, on the one hand, by means of a spring which may be insufficient in the event of soldering of the contacts and, on the other hand , due to the erasure of a hook holding this contact when it is struck by the striker.

Comme ce crochet est lié à une pièce mobile de l'électro-aimant, les mouvements ou secousses que celui-ci subit, notamment au moment de son excitation, risquent de compromettre sa stabilité et de provoquer, par suite, une ouverture du circuit au moment où l'on souhaite justement le fermer.As this hook is linked to a moving part of the electromagnet, the movements or jolts which it undergoes, in particular at the time of its excitation, risk compromising its stability and consequently causing an opening of the circuit to when we want to close it.

Enfin, un tel mode d'ouverture automatique qui bénéficie, le cas échéant, d'un temps de réponse suffisant pour opérer une protection lorsque des surcharges rapides, ne dépassant pas un certain seuil, se présentent dans le circuit, devient tout à fait insuffisant si ces surcharges atteignent des valeurs voisines de celles observées lors de courts-circuits francs.Finally, such an automatic opening mode which benefits, if necessary, from a sufficient response time to operate a protection when rapid overloads, not exceeding a certain threshold, occur in the circuit, becomes entirely insufficient. if these overloads reach values close to those observed during frank short circuits.

L'invention se propose par suite, de fournir un appareil contacteur dans lequel aura été porté remède aux inconvénients signalés ci-dessus, et notamment pour informer l'utilisateur sur l'état de l'appareil, pour réduire son volume, pour garantir une ouverture effective des contacts dans un délai très court et pour assurer une stabilité de fonctionnement lorsque des chocs ou mouvements seront développés par l'électro-aimant.The invention therefore proposes to provide a contactor device in which the above-mentioned drawbacks have been remedied, and in particular to inform the user about the state of the device, to reduce its volume, to guarantee a effective opening of the contacts in a very short time and to ensure operating stability when shocks or movements are developed by the electromagnet.

En vue de parvenir à ce résultat, l'invention propose un appareil' contacteur comportant, d'une façon analogue à celle du contacteur décrit dans le brevet allemand DE-C-968 496, un électro-aimant de commande d'une multiplicité de contacts de puissance, et des moyens d'ouverture automatique de ces contacts qui réagissent lors de l'apparition de surcharges dans un circuit de puissance associé, d'une part pour séparer, indépendamment de l'électro-aimant, et à l'aide d'une pièce magnétisable attirée par une bobine de surcharge placée en série dans ce circuit, un contact mobile de puissance (appartenant à ce circuit) d'un contact fixe avec lequel il coopère, et pour ouvrir, d'autre part, un interrupteur de contrôle placé en série avec la bobine de l'électro-aimant, cet interrupteur pouvant être ouvert par un organe de commande locale qui est apte à refermer les contacts, ledit contact mobile de puissance étant soumis à l'action d'un ressort tendant à le fermer et étant apte à être séparé du contact fixe au moyen d'un poussoir sur lequel peut agir la pièce magnétisable.In order to achieve this, the invention proposes an apparatus' contactor comprising, in a manner analogous to that of the switch described in German patent DE-C-968 496, a magnet electro-control of a plurality of power contacts, and means for automatic opening of these contacts which react upon the appearance of overloads in an associated power circuit, on the one hand to separate, independently of the electromagnet, and using a magnetizable part attracted by an overload coil placed in series in this circuit, a movable power contact (belonging to this circuit) with a fixed contact with which it cooperates, and to open, on the other hand, a switch control placed in series with the solenoid coil, this switch can be opened by a local control member which is able to close the contacts, said movable power contact being subjected to the action of a tension spring to close it and being able to be separated from u fixed contact by means of a pusher on which the magnetizable part can act.

Selon l'invention, cet appareil contacteur est plus particulièrement caractérisé en ce que ledit contact mobile de puissance est apte à être séparé du contact fixe par l'action sur le poussoir, soit d'un mouvement issu de l'armature de l'électro-aimant, soit d'un levier frappé par ladite pièce magnétisable lorsque celle-ci est excitée par ladite bobine de surcharge, ce levier coopérant avec un premier verrou éclipsable qui est séparé de l'électro-aimant, ledit premier verrou étant apte à maintenir ce' levier dans une position d'accrochage pour laquelle le contact mobile est ouvert, et présentant une première extrémité provoquant. la libération d'un premier mécanisme à déclenchement brusque, ce mécanisme comportant une pièce de transmission mobile qui est soumise à un ressort de rappel tendant à l'amener d'une première position stable visible où l'interrupteur de contrôle est fermé vers une deuxième position stable visible où cet interrupteur est maintenu ouvert.According to the invention, this contactor device is more particularly characterized in that said movable power contact is capable of being separated from the fixed contact by the action on the pusher, that is to say a movement coming from the armature of the electro -magnet, either of a lever struck by said magnetizable part when the latter is excited by said overload coil, this lever cooperating with a first eclipsable latch which is separated from the electromagnet, said first latch being able to maintain this' lever in a hooking position for which the movable contact is open, and having a first causing end. the release of a first abrupt trigger mechanism, this mechanism comprising a movable transmission part which is subjected to a return spring tending to bring it from a first visible stable position where the control switch is closed towards a second stable visible position where this switch is kept open.

L'invention ainsi que des variantes de réalisation qui en dérivent seront mieux comprises à la lumière de la description ci-après.The invention as well as variant embodiments which derive therefrom will be better understood in the light of the description below.

Aux dessins annexés :

  • la fig. 1 représente schématiquement un appareil faisant appel à un seul mécanisme à déclenchement brusque ;
  • les fig. 2 et 3 illustrent schématiquement deux appareils dans lesquels un premier mécanisme à déclenchement brusque est libéré par un second mécanisme ;
  • les fig. 4a à 4d montrent schématiquement un appareil conforme à l'invention, dans lequel des moyens particuliers permettent de signaler l'apparition d'un défaut, et
  • la fig. 5 représente un détail de réalisation de l'appareil selon la fig. 4.
In the accompanying drawings:
  • fig. 1 schematically represents an apparatus using a single abrupt trigger mechanism;
  • fig. 2 and 3 schematically illustrate two devices in which a first abrupt trigger mechanism is released by a second mechanism;
  • fig. 4a to 4d schematically show an apparatus according to the invention, in which particular means make it possible to signal the appearance of a fault, and
  • fig. 5 shows a detail of the apparatus according to FIG. 4.

L'appareil illustré à la fig. 1 comprend dans un boîtier 1 un électro-aimant 2 ayant une culasse 3, une bobine d'excitation 4 et une armature mobile 5 soumise à l'action d'un ressort de rappel 6 pour établir sa position de repos. Un circuit électrique 7 d'alimentation de la bobine 4, comprenant un interrupteur de contrôle 8, aboutit à deux bornes de contrôle 9 et 10. L'armature 5 est associée à un levier de commande 11 apte à actionner, en le soulevant, un poussoir 12 d'un contact de puissance 13 comprenant par ailleurs un contact -mobile 14 soumis à l'action d'un ressort fixe 15 qui tend à l'appliquer sur deux contacts fixes 16, 17. Le poussoir 12 qui porte le contact mobile 14 est guidé par des surfaces 1'. Ce contact 13 est monté en série dans un circuit de puissance 18 placé entre les bornes d'alimentation et de raccordement 19, 20. Ce circuit 18, qui comprend également une bobine de surcharge 21, représente l'un des circuits de puissance de l'appareil qui en comportera au moins autant que le nombre de phases du réseau qui l'alimente, et dont l'énergie doit être utilisée par une charge non représentée ; lorsque plusieurs circuits de puissance sont mis en ceuvre, un seul levier 11 actionne donc plusieurs poussoirs tels que 12.The device illustrated in fig. 1 comprises in a housing 1 an electromagnet 2 having a yoke 3, an excitation coil 4 and a movable armature 5 subjected to the action of a return spring 6 to establish its rest position. An electrical circuit 7 for supplying the coil 4, comprising a control switch 8, leads to two control terminals 9 and 10. The armature 5 is associated with a control lever 11 capable of actuating, by lifting it, a pusher 12 of a power contact 13 further comprising a mobile contact 14 subjected to the action of a fixed spring 15 which tends to apply it to two fixed contacts 16, 17. The pusher 12 which carries the movable contact 14 is guided by surfaces 1 '. This contact 13 is mounted in series in a power circuit 18 placed between the supply and connection terminals 19, 20. This circuit 18, which also includes an overload coil 21, represents one of the power circuits of the 'device which will include at least as many as the number of phases of the network which supplies it, and whose energy must be used by a load not shown; when several power circuits are implemented, a single lever 11 therefore actuates several pushers such as 12.

La bobine de surcharge 21 coopère avec un percuteur magnétisable 22 qui est éventuellement maintenu en position de repos par un faible ressort 23, et qui sera brusquement attiré si un courant très important, par exemple un courant de court-circuit, traverse le circuit 18.The overload coil 21 cooperates with a magnetizable striker 22 which is possibly held in the rest position by a weak spring 23, and which will be suddenly attracted if a very large current, for example a short-circuit current, crosses the circuit 18.

Au cours de son déplacement, le percuteur 22 vient frapper un levier 24 retenu par un ressort 25, dont un premier bras 24' est placé en regard du poussoir 12 de sorte que la percussion est retransmise à ce dernier, et que le contact mobile 14 est ouvert très rapidement par le poussoir 12.During its movement, the striker 22 strikes a lever 24 retained by a spring 25, a first arm 24 'of which is placed opposite the pusher 12 so that the percussion is retransmitted to the latter, and that the movable contact 14 is opened very quickly by push-button 12.

Lorsque le levier 24 a ainsi pivoté, un second bras 26 qui maintenait une surface 27 d'un verrou 29, armé par un ressort 30, libère ce verrou qui se déplace vers le haut de la figure.When the lever 24 has thus pivoted, a second arm 26 which held a surface 27 of a latch 29, armed with a spring 30, releases this latch which moves upwards in the figure.

Ce verrou présente une extrémité 31 et une portion 32, cette dernière étant apte à soulever, au cours du déplacement du verrou, un bras 33 appartenant à un levier de contrôle oscillant 34 et maintenu en position de repos contre une butée 35 par un ressort 36.This lock has an end 31 and a portion 32, the latter being capable of lifting, during the movement of the lock, an arm 33 belonging to an oscillating control lever 34 and held in the rest position against a stop 35 by a spring 36 .

Ce levier 34 présente, d'une part, une extrémité 38, par exemple isolante, qui opère l'ouverture de l'interrupteur de contrôle 8 lorsque le levier est écarté de sa position de repos, et présente, d'autre part, une dent d'accrochage 37 apte à coopérer avec une surface de maintien 39, par exemple une rampe inclinée, appartenant à une pièce de transmission 40 ; cette pièce de transmission présente également une surface d'appui 41 et coopère avec un organe de commande locale représenté schématiquement en 42.This lever 34 has, on the one hand, an end 38, for example insulating, which operates the opening of the control switch 8 when the lever is moved from its rest position, and has, on the other hand, a hooking tooth 37 able to cooperate with a holding surface 39, for example an inclined ramp, belonging to a transmission part 40; this transmission part also has a bearing surface 41 and cooperates with a local control member shown diagrammatically at 42.

Une surface de poussée 43, par exemple portée par une rampe inclinée, est placée sur la pièce de transmission 40 dans une région 66 de cette dernière ; cette pièce de transmission est par ailleurs soumise à un ressort de compression 44 qui tend à la repousser dans le sens S vers une butée fixe 45 portée, par exemple, par le boîtier 1. La pièce de transmission 40 ou même l'organe de commande locale 42 portent un index 71 se déplaçant en regard d'une échelle 72 portant des repères tels que F et 0.A thrust surface 43, for example carried by an inclined ramp, is placed on the transmission part 40 in a region 66 of the latter; this transmission part is also subjected to a compression spring 44 which tends to push it in the direction S towards a fixed stop 45 carried, for example, by the housing 1. The transmission part 40 or even the control member locale 42 carry an index 71 moving opposite a scale 72 carrying marks such as F and 0.

Lorsque l'appareil est mis en service, le repère 71 est en regard de la position F et la pièce de transmission 40 est retenue dans une position stable correspondante par la dent 37 du levier 34 au repos, de sorte que, le circuit 7 étant fermé, tout signal de commande appliqué entre 9 et 10 provoquera l'excitation de l'électro-aimant 2, l'attraction de l'armature 5, la tension du ressort 6, le basculement du levier 11 et la fermeture du contact de puissance 13, celle-ci étant réalisée par le ressort de pression 15. Pour cette position F, l'extrémité 31, ou les extrémités telles que 31 lorsque l'appareil comporte plusieurs circuits de puissance, sont placées en regard de la région 66 de la pièce 40 de façon à pouvoir coopérer, le moment venu, avec la rampe 43. Dans une variante non représentée, mais évidente pour l'homme de l'art, un premier poussoir intermédiaire pourrait être placé entre des extrémités telles que 31 et la rampe 43, et un second poussoir intermédiaire pourrait être placé entre des portions telles que 32 et le bras 33 du levier 34.When the device is put into service, the reference 71 is opposite position F and the transmission part 40 is retained in a corresponding stable position by the tooth 37 of the lever 34 at rest, so that, circuit 7 being closed, any control signal applied between 9 and 10 will cause the electromagnet 2 to be excited, the armature to be attracted 5, the spring to be tensioned 6, the lever 11 to tilt and the power contact to close 13, the latter being produced by the pressure spring 15. For this position F, the end 31, or the ends such as 31 when the apparatus comprises several power circuits, are placed opposite the region 66 of the part 40 so as to be able to cooperate, when the time comes, with the ramp 43. In a variant not shown, but obvious to those skilled in the art, a first intermediate pusher could be placed between ends such as 31 and the ramp 43, and a second intermediate pusher could be placed é between portions such as 32 and the arm 33 of the lever 34.

Si un défaut survient en aval de l'appareil, par exemple un court-circuit, la bobine 21 attire instantanément le percuteur 22 qui bascule le levier 24 ; celui-ci soulève le poussoir 12 qui ouvre le contact 13, et simultanément libère le verrou 29 qui se déplace vers le haut de la figure en amenant en regard du bras 26 une surface d'appui 28 qui empêche le levier 24 de reprendre sa position de repos, de sorte que le contact mobile 14, qui s'est déplacé très rapidement, est maintenu en position ouverte par son poussoir 12 et par le levier 24 indépendamment du levier 11 associé à l'armature de l'électro-aimant.If a fault occurs downstream of the device, for example a short circuit, the coil 21 instantly attracts the striker 22 which switches the lever 24; this raises the pusher 12 which opens the contact 13, and simultaneously releases the latch 29 which moves upwards in the figure by bringing opposite the arm 26 a bearing surface 28 which prevents the lever 24 from returning to its position rest, so that the movable contact 14, which is moved very quickly, is kept in the open position by its pusher 12 and by the lever 24 independently of the lever 11 associated with the armature of the electromagnet.

Dans son mouvement vers le haut, le verrou 29 amène, d'une part, l'extrémité 31 vers la rampe 43 (en pointillé) et, d'autre part, fait soulever le bras 33 du levier 34 par la portion 32.In its upward movement, the bolt 29 brings, on the one hand, the end 31 towards the ramp 43 (in dotted lines) and, on the other hand, causes the arm 33 of the lever 34 to be raised by the portion 32.

Il en résulte que, lors du basculement du levier 34, l'interrupteur 8 est ouvert et la pièce 40 libérée.As a result, during the tilting of the lever 34, the switch 8 is open and the part 40 released.

L'ouverture de l'interrupteur 8 provoque la désexcitation de l'électro-aimant 2, la retombée de l'armature 5 et le basculement du levier 11 qui se rapproche donc du poussoir 12, maintenu en position haute depuis sa percussion ; le maintien en position ouverte du contact 13 est donc confirmé par l'état de repos de l'électro-aimant.The opening of the switch 8 causes the electromagnet 2 to de-energize, the armature 5 to fall back and the lever 11 to tilt, which therefore approaches the pusher 12, held in the high position from its percussion; maintaining contact 13 in the open position is therefore confirmed by the state of rest of the electromagnet.

Lorsque la coopération entre la dent 37 et la rampe 39 cesse, la pièce 40 se déplace rapidement dans le sens S, vers la position 0, de sorte que la rampe 43 va rencontrer l'extrémité 31 et va repousser le verrou 29 vers le bas lorsque la pièce 40 sera voisine de ou atteindra la position stable 0 ; dès que la pièce 40 quitte sa position F, l'interrupteur de contrôle est maintenu ouvert grâce à l'appui que trouve la dent 37 contre la surface 41.When the cooperation between the tooth 37 and the ramp 39 ceases, the part 40 moves rapidly in the direction S, towards the position 0, so that the ramp 43 will meet the end 31 and will push the latch 29 down when the part 40 is close to or reaches the stable position 0; as soon as the part 40 leaves its position F, the control switch is kept open by the support that the tooth 37 finds against the surface 41.

Ce mouvement vers le bas du verrou 29 effectue un réarmement du mécanisme placé entre lui et le percuteur, car le levier 24 pourra reprendre la position illustrée sous l'effet du ressort 25.This downward movement of the latch 29 resets the mechanism placed between it and the striker, because the lever 24 can resume position illustrated under the effect of spring 25.

L'appareil se trouve donc placé dans un état de non-service 0, où l'électro-aimant ne peut être excité et où le levier 24 et le verrou 29 ont été réarmés.The device is therefore placed in a state of non-service 0, where the electromagnet cannot be excited and where the lever 24 and the latch 29 have been reset.

Une nouvelle mise en service peut être obtenue grâce à une action volontaire, par exemple manuelle, exercée sur l'organe 42 et la pièce 40 dans le sens S jusqu'à la position F.A new commissioning can be obtained by a voluntary action, for example manual, exerted on the member 42 and the part 40 in the direction S to the position F.

Si le défaut est toujours présent, le fonctionnement précédent se répète ; mais, même si la pièce 40 est maintenue volontairement en position F, aucun courant ne peut circuler en permanence dans le circuit 18, car le contact 13 est automatiquement ouvert par la bobine et le percuteur.If the fault is still present, the previous operation is repeated; but, even if the part 40 is kept voluntarily in position F, no current can circulate permanently in the circuit 18, because the contact 13 is automatically opened by the coil and the striker.

Dans une première variante de l'appareil représenté à la fig. 1, et qui se trouve illustrée aux fig.4a à 4e, l'action de réarmement du verrou et du levier ne se produit pas pendant la course de la pièce de transmission allant de position F à la position 0, mais au cours du déplacement de cette pièce allant de la position O à la position F ; de plus, une position intermédiaire stable de déclenchement signalée par D est prévue entre la position F et la position 0 pour que, lorsque la pièce de transmission 40 se déplace automatiquement de F vers 0 à la suite de l'apparition d'un défaut, celle-ci se trouve arrêtée dans une position visible D qui informe l'utilisateur du fait que l'appareil est à l'état ouvert, et que cette ouverture résulte de l'apparition d'un défaut dans au moins un circuit.In a first variant of the apparatus shown in FIG. 1, and which is illustrated in FIGS. 4a to 4e, the reset action of the lock and of the lever does not occur during the travel of the transmission part going from position F to position 0, but during movement of this part going from position O to position F; in addition, a stable intermediate tripping position indicated by D is provided between position F and position 0 so that, when the transmission part 40 automatically moves from F to 0 following the appearance of a fault, it is stopped in a visible position D which informs the user that the device is in the open state, and that this opening results from the appearance of a fault in at least one circuit.

Une telle variante de l'appareil est représentée en position F à la fig. 4a, où seuls les organes nécessaires à la compréhension ont été représentés.Such a variant of the apparatus is shown in position F in FIG. 4a, where only the organs necessary for understanding have been represented.

Une pièce de transmission 40' comporte, comme précédemment les surfaces 39, 41, un ressort de rappel 44 qui tend à déplacer cette pièce dans le sens S vers une butée 45, et se trouve associée à un organe de commande 42. La région 66 comporte maintenant un levier basculant 47 qui oscille autour d'un pivot 48 placé dans cette région et qui coopère avec un ressort 51 de façon à prendre une position de repos, qui est celle représentée, et dans laquelle ce levier 47 est appuyé contre une butée 50 pouvant ou non appartenir à cette pièce 40'.A transmission part 40 'comprises, as before the surfaces 39, 41, a return spring 44 which tends to move this part in the direction S towards a stop 45, and is associated with a control member 42. The region 66 now comprises a rocking lever 47 which oscillates around a pivot 48 placed in this region and which cooperates with a spring 51 so as to assume a rest position, which is that shown, and in which this lever 47 is pressed against a stop 50 may or may not belong to this part 40 ′.

Ce levier présente deux surfaces successives 49a, 49 qui sont dirigées vers l'extrémité 31 et de façon telle que, pour la position F, cette extrémité 31 soit placée en regard de la surface 49.This lever has two successive surfaces 49a, 49 which are directed towards the end 31 and in such a way that, for position F, this end 31 is placed opposite the surface 49.

Entre la surface 49a et une surface d'appui 67 portée par la pièce' 40' dans son voisinage se trouve un intervalle, ou encoche, ou dégagement 68.Between the surface 49a and a bearing surface 67 carried by the part '40' in its vicinity is a gap, or notch, or clearance 68.

L'élasticité du ressort 51 est choisie de façon telle que, lorsque le verrou 29 est libéré vers le haut de la figure, la force de son ressort propre 30 soit suffisante pour soulever le levier 47.The elasticity of the spring 51 is chosen such that, when the latch 29 is released towards the top of the figure, the force of its own spring 30 is sufficient to raise the lever 47.

Le fonctionnement initial, lors de l'apparition d'un défaut, est le même que dans l'exemple précédent : lorsque la portion 32 a fait basculer le levier 34, celui-ci libère la pièce 40', et en même temps l'extrémité 31 a soulevé le levier 47 (voir fig. 4b).The initial operation, when a fault occurs, is the same as in the previous example: when the portion 32 has tilted the lever 34, the latter releases the part 40 ', and at the same time the end 31 raised the lever 47 (see fig. 4b).

Dès que la pièce 40' se déplace en sens S, la surface 49 glisse sur l'extrémité 31, sans la repousser, jusqu'au moment où cette dernière, se trouvant placée dans le dégagement 68, peut coopérer avec la surface d'appui 67 pour arrêter le mouvement de la pièce 40' dans une position D (voir fig. 4c) ; dès que cette position est atteinte, le levier 47 retrouve sa position originale.As soon as the part 40 'moves in direction S, the surface 49 slides on the end 31, without pushing it back, until the latter, being placed in the clearance 68, can cooperate with the bearing surface 67 to stop the movement of the part 40 'in a position D (see fig. 4c); as soon as this position is reached, the lever 47 returns to its original position.

Une action volontaire, et par exemple manuelle, exercée dans le sens S sur l'organe 42 permet de placer la pièce 40' dans la position 0 ; au cours de ce déplacement, un léger déplacement communiqué vers le bas de la figure au verrou 29 par la surface d'appui 68 n'est pas suffisant pour opérer le réarmement (voir fig. 4d).A voluntary action, for example manual, exerted in the direction S on the member 42 allows to place the part 40 'in the position 0; during this movement, a slight movement communicated downwards of the figure to the latch 29 by the bearing surface 68 is not sufficient to operate the reset (see fig. 4d).

Le réarmement du verrou 29 est opéré lorsque la pièce 40 est amenée de sa position O vers la position D, et donc vers la position F, dans le sens S ; la position de départ pour le réarmement est celle représentée également à la fig. 4d. Au cours de ce processus de réarmement (voir fig. 4e), la surface 49a, dont l'inclinaison est différente de celle de la surface 49, est en mesure de communiquer à l'extrémité 31 une poussée vers le bas, assez importante pour vaincre la force du ressort 30 et produire le réarmement du verrou 29 comme dans l'exemple de réalisation précédent. Ce réarmement se produit lorsque la pièce 40' est dans une position R représentée en pointillé sur la fig. 4e.The reset of the lock 29 is operated when the part 40 is brought from its position O towards the position D, and therefore towards the position F, in the direction S; the starting position for resetting is that also shown in fig. 4d. During this rearming process (see fig. 4e), the surface 49a, whose inclination is different from that of the surface 49, is able to communicate at the end 31 a downward push, significant enough to overcome the force of the spring 30 and produce the reset of the lock 29 as in the previous embodiment. This rearming occurs when the part 40 'is in a position R shown in dotted lines in FIG. 4th.

Le comportement du levier 47, qui ne s'éclipse vers le haut de la figure que lorsque l'extrémité 31 coopère avec la surface 49, peut être obtenu en raison de la différence d'inclinaison des surfaces 49 et 49a ; un autre moyen pour déplacer le levier basculant uniquement lorsque la pièce 40' se déplace en sens S est visible à la fig. 5, où un levier 47' est pivoté sur la pièce 40" en un point 48' placé de telle façon que la réaction T, qui lui est communiquée par l'extrémité 31, confère à ce levier éclipsable 47' un couple de même sens que celui fourni par le ressort 51.The behavior of the lever 47, which only disappears towards the top of the figure when the end 31 cooperates with the surface 49, can be obtained due to the difference in inclination of the surfaces 49 and 49a; another means for moving the rocking lever only when the part 40 ′ moves in direction S is visible in FIG. 5, where a lever 47 'is pivoted on the part 40 "at a point 48' placed in such a way that the reaction T, which is communicated to it by the end 31, gives this eclipsable lever 47 'a torque of the same direction than that provided by the spring 51.

Les fig. 2 et 3 représentent des troisième et quatrième variantes de réalisation de l'invention, dans lesquelles un verrou 70 (ayant les mêmes fonctions que le verrou 29 précédent, dans le cadre de sa coopération avec le levier 24) possède une extrémité 69 qui ne coopère pas directement avec la pièce 40 ou respectivement 47.Figs. 2 and 3 represent third and fourth alternative embodiments of the invention, in which a lock 70 (having the same functions as the previous lock 29, in the context of its cooperation with the lever 24) has an end 69 which does not cooperate not directly with part 40 or respectively 47.

Dans ces deux variantes, un second mécanisme à déclenchement brusque 52 est interposé entre le premier mécanisme à déclenchement brusque 46 et un ou plusieurs verrous 70 analogues au précédent 29.In these two variants, a second sudden release mechanism 52 is interposed between the first sudden release mechanism 46 and one or more latches 70 similar to the previous one 29.

Ce second mécanisme 52, visible en détail à la fig. 2, comporte un culbuteur 61 dont une portion 53 présente une extrémité 60 apte à basculer un levier de verrouillage 76 contre l'action d'un ressort 59, pour qu'un bec 77 de ce levier 76 libère un poussoir 54 qui est armé par un ressort 62 ; ce poussoir 54 comporte, d'une part, dans sa partie supérieure, une extrémité 55 et une portion 56 analogues à l'extrémité 31 et à la portion 32 du verrou 29, et comporte, d'autre part, dans sa partie inférieure, une surface 57 placée en regard d'une surface 58 appartenant au culbuteur 61.This second mechanism 52, visible in detail in FIG. 2, includes a rocker arm 61, a portion 53 of which has an end 60 capable of rocking a locking lever 76 against the action of a spring 59, so that a spout 77 of this lever 76 releases a pusher 54 which is armed by a spring 62; this pusher 54 comprises, on the one hand, in its upper part, an end 55 and a portion 56 similar to the end 31 and to the portion 32 of the latch 29, and comprises, on the other hand, in its lower part, a surface 57 placed opposite a surface 58 belonging to the rocker arm 61.

Lors de l'apparition d'un défaut dans l'une des lignes telles que 18, un verrou 70 soulève le culbuteur 61 qui libère le poussoir 54 vers le haut, celui-ci venant à son tour coopérer par la portion 56 avec le levier 34 pour faire basculer ce dernier.When a defect appears in one of the lines such as 18, a latch 70 lifts the rocker arm 61 which releases the pusher 54 upwards, the latter in turn co-operating through the portion 56 with the lever 34 to toggle the latter.

Le réarmement du second mécanisme à déclenchement brusque 52 se produit lorsque le poussoir 54 est repoussé vers le bas de la figure et transmet son mouvement par coopération des surfaces 57, 58 au culbuteur 61, ce dernier agissant à son tour sur l'extrémité 69 du verrou 70 pour lui redonner une position où le ressort 30 est armé.The rearming of the second abrupt trigger mechanism 52 occurs when the pusher 54 is pushed down in the figure and transmits its movement by cooperation of the surfaces 57, 58 to the rocker arm 61, the latter acting in turn on the end 69 of the latch 70 to restore it to a position where the spring 30 is armed.

On remarquera que ce mouvement vers le bas peut être lui-même provoqué soit par la rampe 43 si l'on utilise une pièce de transmission telle que 40 (voir fig. 3), soit par la surface inclinée 49a si l'on utilise une pièce de transmission telle que 40' (voir fig. 2).It will be noted that this downward movement can itself be caused either by the ramp 43 if a transmission part such as 40 is used (see fig. 3), or by the inclined surface 49a if a transmission part such as 40 '(see fig. 2).

Un appareil tel que visible à la fig. fait, de plus, appel à deux systèmes de déclenchement aptes à libérer chacun le second mécanisme à déclenchement brusque 52 et nécessaires pour des catégories de défauts distinctes.A device as seen in fig. also makes use of two trigger systems capable of each releasing the second sudden trigger mechanism 52 and necessary for separate categories of faults.

Lorsque le circuit 18 est l'objet d'un courant de court-circuit, la bobine 21 attire le percuteur 22 et le levier 24 soulève le porte-contact 12, la position haute du levier étant maintenue par le verrou 70.When the circuit 18 is the object of a short-circuit current, the coil 21 attracts the striker 22 and the lever 24 lifts the contact carrier 12, the high position of the lever being maintained by the latch 70.

Si des courants de défauts, par exemple de surcharge courte, et inférieurs à ceux qui produisent l'attraction rapide du percuteur se présentent dans la ligne 18, le percuteur n'est pas-suff ipam- ment attiré pour ouvrir le contact de puissance 13.If fault currents, for example of short overload, and lower than those which produce the rapid attraction of the striker occur in line 18, the striker is not sufficiently attracted to open the power contact 13 .

Afin de rendre l'appareil sensible à l'apparition d'un tel défaut, on peut associer à la bobine 21 une palette magnétisable 75 portée par exemple par un levier oscillant 73 auquel un ressort calibré 74 donne une position de repos.In order to make the device sensitive to the appearance of such a defect, it is possible to associate with the coil 21 a magnetizable pallet 75 carried for example by an oscillating lever 73 to which a calibrated spring 74 gives a rest position.

Cette palette peut, par exemple, être traversée par le percuteur 22 ou coopérer avec une face de la bobine 21 qui n'est pas concernée par les déplacements du percuteur.This pallet can, for example, be crossed by the striker 22 or cooperate with a face of the coil 21 which is not affected by the movements of the striker.

Entre ce levier 73 et le culbuteur 61 se trouve disposé un poussoir auxiliaire 63 dont les extrémités 64, 65 coopèrent avec ce levier et ce culbuteur.Between this lever 73 and the rocker arm 61 is located an auxiliary pusher 63 whose ends 64, 65 cooperate with this lever and this rocker arm.

Lorsqu'un tel défaut de surcharge apparaît, le percuteur 22 ne se déplace pas, mais l'attraction magnétique de la palette 75 provoque, par l'intermédiaire du poussoir auxiliaire 63, la libération du second mécanisme à déclenchement brusque 52, le déplacement vers 0 de là pièce 40' et par suite l'ouverture de l'interrupteur de contrôle 8, la désexcitation de l'électro-aimant 2 est finalement l'ouverture des contacts de puissance 13 par l'effet du ressort de rappel 6.When such an overload fault appears, the striker 22 does not move, but the magnetic attraction of the pallet 75 causes, via the auxiliary pusher 63, the release of the second abrupt trigger mechanism 52, the movement towards 0 from there piece 40 'and consequently the opening of the control switch 8, the de-excitation of the electromagnet 2 is finally the opening of the power contacts 13 by the effect of the return spring 6.

Dans les exemples de réalisation illustrés, la forme et la disposition des différents éléments de transmission de mouvement sont donnés à titre d'exemples non limitatifs, et il faut admettre que les surfaces de guidage, qui ne sont pas représentées, et qui assureraient le guidage des pièces mobiles en translation, pourraient le cas échéant être établies pour guider ces pièces le long de trajectoires courbes.In the exemplary embodiments illustrated, the shape and the arrangement of the various movement transmission elements are given by way of nonlimiting examples, and it must be admitted that the guide surfaces, which are not shown, and which would provide the guidance moving parts in translation, could if necessary be established to guide these parts along curved paths.

Dans l'ensemble des variantes qui viennent d'être décrites, il doit être compris que si l'appareil est conçu pour fonctionner comme un contacteur en l'absence de défauts, l'organe de commande locale 42 permet d'opérer par voie manuelle sa mise en service F ou sa mise hors service O.In all of the variants which have just been described, it should be understood that if the device is designed to operate as a contactor in the absence of faults, the local control member 42 makes it possible to operate manually. its commissioning F or its decommissioning O.

Bien que l'ensemble des variantes possibles de l'appareil selon l'invention fasse appel à un contact mobile en pont 14 et à un porte-contact 12, il est clair que le contact de puissance 13 pourrait aussi bien être réalisé à l'aide d'un contact mobile à simple coupure, la pièce 12 jouant, dans ce cas, le rôle d'un simple poussoir.Although all of the possible variants of the device according to the invention make use of a movable bridge contact 14 and a contact carrier 12, it is clear that the power contact 13 could just as easily be made at using a mobile contact with a single break, the part 12 playing, in this case, the role of a simple pusher.

Claims (6)

1. A contactor apparatus comprising an electromagnet (2) controlling a multiplicity of power contacts (16, 17) and means for automatically opening these contacts which react when overloads appear in an associated power circuit, on the one hand for separating, independently of the electomagnet (2) and by means of a magnetizable part (22) attracted by an overload coil (21) placed in series in this circuit, a mobile power contact (14) (belonging to this circuit) from a fixed contact (16,17) with which it cooperates and for opening, on the other hand, a control switch (8) placed in series with the coil (14) of the electromagnet (2), this switch (8) being able to be opened by a local control member (42) which is adapted to close the contacts again, said mobile power contact being subjected to the action of a spring (15) tending to close it and being adapted to be separated from the fixed contact by means of a pusher (12) on which the magnetizable part may act, characterized in that said mobile power contact is adapted to be separated from the fixed contact by an action on the pusher either by a movement originating from the armature (5) of the electromagnet (2) or by means of a lever (24) struck by said magnetizable part (22) when this latter is activated by said overload coil (21), this lever (24) cooperating with a first retractable bolt (29) which is separated from the electromagnet (2), said first bolt (29) being adapted to maintain this lever (24) in an interlocking position in which the mobile contact (14) is open and having a first end (32) causing a first sudden tripping mechanism (46) to be released, this mechanism comprising a mobile transmission piece (40, 40') which is subjected to a return spring (44) tending to bring it from a first visible stable position (« F »)in which the control switch (8) is closed to a second visible stable position (« O •) in which said switch is maintained open.
2. The contactor apparatus according to claim 1, characterized in that a second sudden tripping mechanism (52) adapted to be reset by movement of the transmission piece (40, 40') is disposed between the first sudden tripping mechanism (46) and either said first bolt (29) or respectively a second retractable bolt (70).
3. The contactor apparatus according to claim 2, characterized in that resetting of the said retractable bolts (29, 70) is effected by cooperation of resetting surfaces (43, 50), driven by the mobile transmission piece (40, 40') with a second end (55, 31) belonging either to said first retractable bolt (29) or respectively to a pusher (54) of the second mechanism (52) which retransmits its movement to an end (69) of said second retractable bolt (70).
4. The contactor apparatus according to claim 3, characterized in that the transmission piece (40) has a ramp (43) which cooperates with said second end (55, 31) when said piece is directed from its first stable position (« F •) to its second stable position (« O •).
5. The contactor apparatus according to claim 3, characterized in that the transmission piece (40') has a resilient lever (47) which carries the resetting surface (50), and which may rock under the effect of said second end (55, 31) when the piece (40') moves from its first stable position (« F ») to its second stable position (« O »), this lever not rocking when said piece (40') moves from said second position (« 0 •) to said first position (« F •) so as to communicate to this end (55, 31) a resetting movement.
6. A contactor apparatus according to claim 5, characterized in that the transmission piece (40') comprises a bearing surface (68) coming into abutment against said second end (55, 31) so as to stop this piece in an intermediate visible tripping position (D) which is placed between said first and second positions (« F ») and (« O »).
EP82402021A 1981-11-09 1982-11-03 Contactor device with means for automatic interruption and with a local operating part Expired EP0079820B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82402021T ATE11711T1 (en) 1981-11-09 1982-11-03 SWITCHGEAR WITH SELF-INTERRUPTING ARRANGEMENTS AND WITH A LOCAL DRIVE PART.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8120925A FR2516298A1 (en) 1981-11-09 1981-11-09 CONTACTOR APPARATUS HAVING AUTOMATIC OPENING MEANS AND LOCAL CONTROL MEMBER
FR8120925 1981-11-09

Publications (3)

Publication Number Publication Date
EP0079820A1 EP0079820A1 (en) 1983-05-25
EP0079820B1 EP0079820B1 (en) 1985-02-06
EP0079820B2 true EP0079820B2 (en) 1988-07-06

Family

ID=9263818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82402021A Expired EP0079820B2 (en) 1981-11-09 1982-11-03 Contactor device with means for automatic interruption and with a local operating part

Country Status (15)

Country Link
US (1) US4473860A (en)
EP (1) EP0079820B2 (en)
JP (1) JPS58126633A (en)
AT (1) ATE11711T1 (en)
BR (1) BR8206476A (en)
CA (1) CA1182500A (en)
DE (1) DE3262240D1 (en)
ES (1) ES517209A0 (en)
FI (1) FI70757C (en)
FR (1) FR2516298A1 (en)
HK (1) HK77485A (en)
IN (1) IN158466B (en)
NO (1) NO159126C (en)
SG (1) SG38885G (en)
ZA (1) ZA828013B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590404B1 (en) * 1985-11-15 1990-08-10 Telemecanique Electrique CIRCUIT BREAKER COMPRISING A REMOTE CONTROL ELECTRO-MAGNET OF A RETRACTABLE CONTACT OF A SWITCH AND A TRANSMISSION MEMBER OF THE MOTION OF THE ELECTRIC MAGNET AT A POINT OF THIS CONTACT CENTERED ON THE MOVEMENT AXIS
FR2590403B1 (en) * 1985-11-15 1990-08-10 Telemecanique Electrique CIRCUIT BREAKER COMPRISING A REMOTE CONTROL ELECTRIC MAGNET OF A SWITCHABLE SWITCH CONTACT AND A MEMBER FOR TRANSMITTING THE MOTION OF THE ELECTRIC MAGNET ARMOR AT A POINT OF THIS CONTACT OFFSET RELATED TO THE MOVEMENT OF THE ARMOR
JPH02100229A (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
IT1231103B (en) * 1989-08-09 1991-11-18 Sace Spa SELF-COORDINATED MANEUVERING AND PROTECTION DEVICE FOR ELECTRICAL EQUIPMENT.
US5657002A (en) * 1995-12-27 1997-08-12 Electrodynamics, Inc. Resettable latching indicator
FR2788373B1 (en) * 1999-01-08 2001-02-16 Cahors App Elec CIRCUIT BREAKER / DISCONNECTOR WITH LOCKED POSITION
DE102004062270B4 (en) * 2004-12-23 2012-08-30 Siemens Ag Method and device for safe operation of a switching device and switching device
DE102004062266A1 (en) * 2004-12-23 2006-07-13 Siemens Ag Method and device for safe operation of a switching device
DE102004062269A1 (en) * 2004-12-23 2006-07-13 Siemens Ag Method and device for safe operation of a switching device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738413C (en) * 1937-04-10 1943-08-14 Aeg Contactor with tripping by overcurrent
DE740887C (en) * 1941-01-07 1943-10-30 Aeg Multipole overcurrent protection
DE735838C (en) * 1941-11-19 1943-05-29 Aeg Multipole electromagnetically operated contactor with short-circuit release
JPS5341785B2 (en) * 1973-05-21 1978-11-07
US3921109A (en) * 1974-06-20 1975-11-18 Westinghouse Electric Corp Circuit-interrupter
NZ181021A (en) * 1975-06-16 1978-12-18 Westinghouse Electric Corp Motor controller: two switch contact open positions one unlatched
US4149053A (en) * 1976-10-26 1979-04-10 Cutler-Hammer, Inc. Safety disconnect electric switch
FR2408209A1 (en) * 1977-11-08 1979-06-01 Telemecanique Electrique ELECTRO-MAGNETIC CONTACTOR EQUIPPED WITH AN ELECTRO-MAGNET SENSITIVE TO OVERCURRENTS TO CAUSE THE LIMITATION AND CUT OFF OF EXCESSIVE CURRENTS
US4247745A (en) * 1978-09-13 1981-01-27 Westinghouse Electric Corp. Vacuum-type contactor assembly
US4258343A (en) * 1979-02-12 1981-03-24 Gould Inc. Unitized combination starter
IT1137121B (en) * 1981-04-02 1986-09-03 Sace Spa ELECTRIC SWITCH, PARTICULARLY CURRENT LIMITER

Also Published As

Publication number Publication date
ES8308145A1 (en) 1983-08-01
NO823711L (en) 1983-05-10
FI823844L (en) 1983-05-10
US4473860A (en) 1984-09-25
ES517209A0 (en) 1983-08-01
FI70757C (en) 1986-10-06
FR2516298A1 (en) 1983-05-13
ATE11711T1 (en) 1985-02-15
FI70757B (en) 1986-06-26
FR2516298B1 (en) 1984-01-06
NO159126C (en) 1988-11-30
EP0079820B1 (en) 1985-02-06
JPS58126633A (en) 1983-07-28
CA1182500A (en) 1985-02-12
NO159126B (en) 1988-08-22
ZA828013B (en) 1983-12-28
BR8206476A (en) 1983-09-27
IN158466B (en) 1986-11-22
FI823844A0 (en) 1982-11-09
EP0079820A1 (en) 1983-05-25
JPH0127534B2 (en) 1989-05-30
SG38885G (en) 1987-07-03
HK77485A (en) 1985-10-18
DE3262240D1 (en) 1985-03-21

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