EP0424283B1 - Control device for a remote control interrupter - Google Patents

Control device for a remote control interrupter Download PDF

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Publication number
EP0424283B1
EP0424283B1 EP90420438A EP90420438A EP0424283B1 EP 0424283 B1 EP0424283 B1 EP 0424283B1 EP 90420438 A EP90420438 A EP 90420438A EP 90420438 A EP90420438 A EP 90420438A EP 0424283 B1 EP0424283 B1 EP 0424283B1
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EP
European Patent Office
Prior art keywords
control
coil
priority
circuit
remote
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
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EP90420438A
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German (de)
French (fr)
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EP0424283A1 (en
Inventor
André Vasseur
Thierry Fouarge
Jean-Pierre Lacroix
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Merlin Gerin SA
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Merlin Gerin SA
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Publication of EP0424283A1 publication Critical patent/EP0424283A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/226—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil for bistable relays

Definitions

  • the invention relates to a device for controlling a remote control switch or a remote-controlled device comprising a movable power contact capable of occupying a stable closed position and a stable open position, a bistable mechanism for controlling said contact. mobile, a coil switching said mechanism from one position to the other with each current pulse passing through the coil, and local or priority control of the remote control switch.
  • a remote control switch of the type mentioned generally comprises several controls, either manual or electric, some of which may be local controls and others remote controls. Interference with these commands should be avoided and Belgian patent N ° 816,045 (& FR-A- 2 274 151) describes a diagram allowing actuators with delay reversing contacts to actuate them, either by one or more buttons local pushers, either by a double pilot line. This diagram includes double contact pushbuttons and wiring is notably complicated by the use of such buttons.
  • one of the controls may consist of output contacts of a clock or any other detector or device which keeps the control circuit energized for a period far exceeding the time necessary for the switching of the remote control switches. During all this time if someone acts on another command, for example a local command push button, it may result in a different operation from that desired. In fact, as soon as the remote control switch switches it automatically receives a pulse delivered by the above-mentioned closed contacts controlled by the clock or other device. The operation of the remote control switch can thus be blocked for significant periods.
  • the document EP-A-199.612 describes an electronic control device which avoids such blocking and also makes it possible to control the remote-controlled device in such a way that priority is given to the last order given, either by centralized control or by a local control by push button, or by manual control located on the device.
  • the electronic device is relatively complicated and expensive and the present invention aims to allow the production of a simplified device giving priority to the last order given.
  • control device according to the invention is described in claim 1.
  • the resistance with a positive temperature coefficient reduced after a predetermined duration greater than the switching time of the contacts of the remote control switch, the current passing through the coil to a value lower than that causing the excitation of this coil, despite maintaining in the closed position of the circuit not priority.
  • the remote control switch is available to receive any other order issued by one of the other commands.
  • the value of the resistance with positive temperature coefficient is chosen to maintain the supply current of the coil by the non-priority circuit for a time just necessary for the tilting of the mechanism and the residual current is insufficient to supply the coil but sufficient to maintain resistance with a positive temperature coefficient in the state of high resistance.
  • the non-priority control circuit can be a remote control circuit common to several remote control switches and comprising a central control button.
  • the remote control switch may include an auxiliary change-over contact representing the position of the main contacts and in this case the remote control circuit advantageously comprises a central closing control and a central opening control each connected by an auxiliary control circuit to said reversing contact.
  • the priority control can be the manual control of the remote control switch or a local control push button causing the coil to be excited.
  • the current supplied by the control circuit to the coil before the switching of the resistance with positive thermal coefficient is approximately twice the switching threshold of this resistance. This ensures rapid switching and limitation of the current flowing through the coil. This limited current is low enough not to keep the magnetic pallet of the remote control switch attracted, which allows operation of the remote control switch on an order given by another command. This limited current is nevertheless sufficient to maintain self-heating of the resistance with a positive thermal coefficient which prevents it from returning to the zone of low resistance.
  • the limitation of the supply time of the coil reduces the heating thereof which allows the use of insulators less resistant to heat and therefore more easily strippable or weldable without prior stripping. Another advantage is to be able to have a greater motor force in the same space and therefore to make more miniaturized constructions.
  • By keeping the temperature rises to a very low level it is possible to envisage placing any device just in front of the remote-controlled device without this being disturbed by the temperature rises.
  • the use of a resistance with a positive thermal coefficient eliminates any humming due to the maintenance of the magnetic circuit in the closed position and very considerably limits the consumption generated by the maintenance in the closed position of an electrical control.
  • the control device according to the invention can be used in installations equipped with programmers or detectors causing the contacts to close and remain in the closed position. It can be used for any remote control switch or any controlled device having two stable positions and controlled by an electromagnet or by any other electro-mechanical system.
  • a bipolar remote control switch 10 has two power contacts 12 connected on the one hand to the phase 14 and neutral 16 conductors of the electrical network and on the other hand to a load such as a lamp 18.
  • the power contacts 12 are controlled by a mechanism 20 having a coil 21 connected on the one hand to the neutral conductor 16 and on the other hand to a control circuit 22 connected to phase 14.
  • the control circuit 22 consists of two circuits connected in parallel in this case a priority circuit 24 in which is inserted a control push button 26 and a non-priority circuit 28 in which are inserted in series a control push button 30 and a resistor 32 with positive temperature coefficient.
  • the mechanism 20 of the bistable type transmits to each current pulse passing through the coil 21 a movement of change of position of the power contacts 12.
  • the remote control switch according to FIG. 1 operates as follows:
  • the remote control switch 10 being in an open position, for example, represented in FIG. 1, the closing can be caused by the actuation of the push button 26 of the priority circuit 24 which feeds the coil 21. After releasing the push button 26 the remote control switch can be opened by actuating the push button 26 again in a manner well known to specialists.
  • the remote control switch 10 can also be controlled by actuating the push button 30 of the non-priority circuit 28 which supplies the coil 21 through the resistor with positive thermal coefficient 32.
  • the resistance is low and the coil 21 is traversed by a current i close to that obtained in the absence of the resistor 32.
  • This low resistance is maintained for a sufficient time for the switching of the power contacts 12 by the mechanism 20.
  • This current which flows through the resistor 32 causes it to heat up and switch over to the zone of strong resistances.
  • the current flowing through the coil 21 is therefore considerably reduced to an insufficient value when the coil is excited, in this case when the magnetic paddle is kept in the attracted position.
  • This reduced current, insufficient to excite the coil 21, is nevertheless sufficient to heat the resistance with a positive temperature coefficient 32 and prevent the latter from switching to the zone of low resistance.
  • the switching threshold may for example be close to half of the current i normally applied to the coil 21 to cause its excitation.
  • the resistor 32 causes the coil 21 to de-energize even when the push-button 30 is kept in the closed position and the remote control switch 10 is ready for a new command, for example transmitted by the priority circuit 24 when the push-button 26 is closed. If the push button 30 of the non-priority circuit 28 is released, the resistor 32 cools and switches to a low resistance value allowing a new command. This switching takes place with a certain delay which is generally not annoying.
  • FIG. 2 illustrates a more complex installation with two remote switches, one 34 bipolar and the other 36 four-pole, each equipped with power contacts 12 for load supply 18.
  • the bipolar remote switch 34 comprises a control coil 38 and a auxiliary change-over contact 40 representative of the position of the power contacts 12.
  • the four-pole remote control switch 36 comprises a control coil 42 and an auxiliary contact 44.
  • Diodes 46 are inserted in the circuits of the auxiliary change-over contacts 40-44 to avoid interference from the controls.
  • the remote control switches 34-36 are connected to the network 48 by means of protective circuit breakers 50.
  • the control circuits of the remote control switches 34-36 are identical and only that of the remote control switch 34 is described in detail below, the other bearing the same reference numbers.
  • the coil 38 is connected to a local or priority control circuit 52 having two pushbuttons connected in parallel and supplied via a protective circuit breaker 50 by the network 48.
  • a central or non-priority control circuit 56 having a two-wire pilot line 58.
  • the central control comprises two push buttons 60-62 each inserted in one of the conductors of the pilot line 58 and one controlling the opening and other the closing of the remote control switch 34.
  • the pilot line 58 is connected by means of the auxiliary change-over contact 40 and of a resistor 32 with a positive temperature coefficient at the terminal of the coil 38.
  • the four-pole remote control switch 36 is connected to the same pilot line 58 so that a command by the push button 60 or 62 causes a simultaneous command of the two remote control switches 34, 36 or a greater number all connected to the same line p island 58.
  • the device according to FIG. 2 operates as follows:
  • a centralized control or remote control for closing the two remote switches 34, 36 is generated by the actuation of the push button 60, which causes the coils 38, 42 to be supplied via the reversing auxiliary contacts 40, 44 and the resistors 32 with positive thermal coefficient.
  • the excitation of the coils 38, 42 causes the tilting of the contacts 12 and the reversal of the auxiliary contacts 40, 44.
  • the reversal of the auxiliary contacts 40, 44 interrupts the supply of the coils 38, 42 and the resistors 32 have had no time to reach their switching threshold.
  • An opening command can then be carried out, either by the centralized command with an opening push button 62, or by one of the local control push buttons 54.
  • FIG. 3 illustrates another installation according to the invention, for example an external lighting circuit, produced by a remote control switch 64 locally controlled by a push button 66 whose closing causes the coil 68 of the remote control switch 64 to be powered.
  • the remote control switch can also be controlled automatically by a detector 70, for example of an intrusion, which causes the closure of a contact 72 supplying the coil 68 by means of an auxiliary change-over contact 74 of the remote control switch 64 and of a resistor 76 with a positive thermal coefficient.
  • the operation of this command results from the previous presentation and it suffices to specify that a lighting order given by the intrusion detector 70 does not prevent the local extinction command by actuation of the push button 66.

Description

L'invention est relative à un dispositif de commande d'un télérupteur ou d'un appareil télécommandé comprenant un contact mobile de puissance susceptible d'occuper une position stable de fermeture et une position stable d'ouverture, un mécanisme bistable de commande dudit contact mobile, une bobine faisant basculer ledit mécanisme d'une position vers l'autre à chaque impulsion de courant traversant la bobine, et une commande locale ou prioritaire du télérupteur.The invention relates to a device for controlling a remote control switch or a remote-controlled device comprising a movable power contact capable of occupying a stable closed position and a stable open position, a bistable mechanism for controlling said contact. mobile, a coil switching said mechanism from one position to the other with each current pulse passing through the coil, and local or priority control of the remote control switch.

Un télérupteur du genre mentionné comporte généralement plusieurs commandes, soit manuelles soit électriques, dont certaines peuvent être des commandes locales et d'autres des commandes à distance. Il convient d'éviter des interférences de ces commandes et le brevet belge N° 816.045 (& FR-A- 2 274 151) décrit un schéma permettant avec des télérupteurs munis de contacts inverseurs à retard de les actionner, soit par un ou plusieurs boutons poussoirs locaux, soit par une double ligne pilote. Ce schéma comporte des boutons-poussoirs à double contact et le câblage est notablement compliqué par l'emploi de tels boutons.A remote control switch of the type mentioned generally comprises several controls, either manual or electric, some of which may be local controls and others remote controls. Interference with these commands should be avoided and Belgian patent N ° 816,045 (& FR-A- 2 274 151) describes a diagram allowing actuators with delay reversing contacts to actuate them, either by one or more buttons local pushers, either by a double pilot line. This diagram includes double contact pushbuttons and wiring is notably complicated by the use of such buttons.

Dans certains cas d'application l'une des commandes peut être constituée par des contacts de sortie d'une horloge ou de tout autre détecteur ou dispositif qui maintient le circuit de commande sous tension pendant une durée dépassant de loin le temps nécessaire au basculement des télérupteurs. Pendant tout ce temps si quelqu'un agit sur une autre commande, par exemple un bouton poussoir de commande locale, il peut s'ensuivre un fonctionnement différent de celui désiré. En effet, dès que le télérupteur bascule il reçoit automatiquement une impulsion délivrée par les contacts fermés précités commandés par l'horloge ou autre dispositif. Le fonctionnement du télérupteur peut ainsi être bloqué pendant des durées non négligeables.In certain application cases, one of the controls may consist of output contacts of a clock or any other detector or device which keeps the control circuit energized for a period far exceeding the time necessary for the switching of the remote control switches. During all this time if someone acts on another command, for example a local command push button, it may result in a different operation from that desired. In fact, as soon as the remote control switch switches it automatically receives a pulse delivered by the above-mentioned closed contacts controlled by the clock or other device. The operation of the remote control switch can thus be blocked for significant periods.

Le document EP-A-199.612 décrit un dispositif électronique de commande qui évite un tel blocage et permet en outre de commander l'appareil télécommandé de telle façon que la priorité soit donnée au dernier ordre donné, soit par la commande centralisée, soit par une commande locale par bouton-poussoir, soit par la commande manuelle située sur l'appareil. Le dispositif électronique est relativement compliqué et coûteux et la présente invention a pour but de permettre la réalisation d'un dispositif simplifié donnant la priorité au dernier ordre donné.The document EP-A-199.612 describes an electronic control device which avoids such blocking and also makes it possible to control the remote-controlled device in such a way that priority is given to the last order given, either by centralized control or by a local control by push button, or by manual control located on the device. The electronic device is relatively complicated and expensive and the present invention aims to allow the production of a simplified device giving priority to the last order given.

Le dispositif de commande selon l'invention est décrit dans la revendication 1.The control device according to the invention is described in claim 1.

La résistance à coefficient de température positif réduit après une durée prédéterminée supérieure au temps de basculement des contacts du télérupteur, le courant traversant la bobine à une valeur inférieure à celle provoquant l'excitation de cette bobine, malgré le maintien en position fermée du circuit non prioritaire. Le télérupteur est disponible pour recevoir tout autre ordre émis par l'une des autres commandes. La valeur de la résistance à coefficient de température positif est choisie pour maintenir le courant d'alimentation de la bobine par le circuit non prioritaire pendant une durée juste nécessaire au basculement du mécanisme et le courant résiduel est insuffisant pour alimenter la bobine mais suffisant pour maintenir la résistance à coefficient de température positif en l'état de résistance élevée. Le circuit non prioritaire de commande peut être un circuit de télécommande commun à plusieurs télérupteurs et comprenant un bouton de commande centrale. Le télérupteur peut comporter un contact auxiliaire inverseur représentant la position des contacts principaux et dans ce cas le circuit de télécommande comporte avantageusement une commande centrale de fermeture et une commande centrale d'ouverture chacune reliée par un circuit de commande auxiliaire audit contact inverseur. La commande prioritaire peut être la commande manuelle du télérupteur ou un bouton poussoir de commande locale provoquant l'excitation de la bobine. Le courant fourni par le circuit de commande à la bobine avant la commutation de la résistance à coefficient thermique positif est environ le double du seuil de commutation de cette résistance. On est ainsi assuré d'une commutation rapide et d'une limitation du courant parcourant la bobine. Ce courant limité est suffisamment faible pour ne pas maintenir la palette magnétique du télérupteur attiré ce qui permet un fonctionnement du télérupteur sur un ordre donné par une autre commande. Ce courant limité est néanmoins suffisant pour maintenir un auto-échauffement de la résistance à coefficient thermique positif qui empêche celle-ci de revenir dans la zone de résistance faible.The resistance with a positive temperature coefficient reduced after a predetermined duration greater than the switching time of the contacts of the remote control switch, the current passing through the coil to a value lower than that causing the excitation of this coil, despite maintaining in the closed position of the circuit not priority. The remote control switch is available to receive any other order issued by one of the other commands. The value of the resistance with positive temperature coefficient is chosen to maintain the supply current of the coil by the non-priority circuit for a time just necessary for the tilting of the mechanism and the residual current is insufficient to supply the coil but sufficient to maintain resistance with a positive temperature coefficient in the state of high resistance. The non-priority control circuit can be a remote control circuit common to several remote control switches and comprising a central control button. The remote control switch may include an auxiliary change-over contact representing the position of the main contacts and in this case the remote control circuit advantageously comprises a central closing control and a central opening control each connected by an auxiliary control circuit to said reversing contact. The priority control can be the manual control of the remote control switch or a local control push button causing the coil to be excited. The current supplied by the control circuit to the coil before the switching of the resistance with positive thermal coefficient is approximately twice the switching threshold of this resistance. This ensures rapid switching and limitation of the current flowing through the coil. This limited current is low enough not to keep the magnetic pallet of the remote control switch attracted, which allows operation of the remote control switch on an order given by another command. This limited current is nevertheless sufficient to maintain self-heating of the resistance with a positive thermal coefficient which prevents it from returning to the zone of low resistance.

La limitation de la durée d'alimentation de la bobine réduit l'échauffement de celle-ci ce qui permet d'utiliser des isolants moins résistants à la chaleur et par conséquent plus facilement dénudables ou soudables sans dénudage préalable. Un autre avantage est de pouvoir disposer d'un effort moteur plus important dans le même encombrement et par conséquent de réaliser des constructions plus miniaturisées. En maintenant des échauffements à un très bas niveau il est possible d'envisager de placer juste devant l'appareil télécommandé un dispositif quelconque sans que celui-ci soit pertubé par les échauffements. L'emploi d'une résistance à coefficient thermique positif élimine tout ronflement dû au maintien du circuit magnétique en position fermée et limite très sensiblement les consommations engendrées par le maintien en position fermée d'une commande électrique.The limitation of the supply time of the coil reduces the heating thereof which allows the use of insulators less resistant to heat and therefore more easily strippable or weldable without prior stripping. Another advantage is to be able to have a greater motor force in the same space and therefore to make more miniaturized constructions. By keeping the temperature rises to a very low level, it is possible to envisage placing any device just in front of the remote-controlled device without this being disturbed by the temperature rises. The use of a resistance with a positive thermal coefficient eliminates any humming due to the maintenance of the magnetic circuit in the closed position and very considerably limits the consumption generated by the maintenance in the closed position of an electrical control.

Le dispositif de commande selon l'invention peut être utilisé dans les installations équipées de programmateurs ou de détecteurs engendrant la fermeture et le maintien en position fermée de contacts. Il est utilisable pour tout télérupteur ou tout appareil commandé ayant deux positions stables et piloté par un électro-aimant ou par tout autre système électro-mécanique.The control device according to the invention can be used in installations equipped with programmers or detectors causing the contacts to close and remain in the closed position. It can be used for any remote control switch or any controlled device having two stable positions and controlled by an electromagnet or by any other electro-mechanical system.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de différents modes de mise en oeuvre de l'invention donnés à titre d'exemple et représentés aux dessins annexés dans lesquels :

  • la figure 1 représente le schéma électrique d'une installation simplifiée à un seul télérupteur piloté par un dispositif de commande selon l'invention;
  • la figure 2 représente le schéma électrique selon l'invention de deux télérupteurs à commande locale et à commande générale par fil pilote;
  • la figure 3 représente le schéma électrique d'un télérupteur selon l'invention piloté par un détecteur d'intrusion.
Other advantages and characteristics will emerge more clearly from the description which follows of different embodiments of the invention given by way of example and shown in the appended drawings in which:
  • FIG. 1 represents the electrical diagram of a simplified installation with a single remote control switch controlled by a control device according to the invention;
  • FIG. 2 represents the electrical diagram according to the invention of two remote control switches with local control and with general control by pilot wire;
  • FIG. 3 represents the electrical diagram of a remote control switch according to the invention controlled by an intrusion detector.

Sur les figures, un télérupteur bipolaire 10 présente deux contacts de puissance 12 reliés d'une part aux conducteurs de phase 14 et de neutre 16 du réseau électrique et d'autre part à une charge telle qu'une lampe 18. Les contacts de puissance 12 sont commandés par un mécanisme 20 ayant une bobine 21 reliée d'une part au conducteur neutre 16 et d'autre part à un circuit de commande 22 connecté à la phase 14. Le circuit de commande 22 est constitué de deux circuits connectés en parallèle en l'occurrence un circuit prioritaire 24 dans lequel est inséré un bouton poussoir de commande 26 et un circuit non prioritaire 28 dans lequel sont insérés en série un bouton-poussoir de commande 30 et une résistance 32 à coefficient de température positif. Le mécanisme 20 du type bistable transmet à chaque impulsion de courant traversant la bobine 21 un mouvement de changement de position des contacts de puissance 12.In the figures, a bipolar remote control switch 10 has two power contacts 12 connected on the one hand to the phase 14 and neutral 16 conductors of the electrical network and on the other hand to a load such as a lamp 18. The power contacts 12 are controlled by a mechanism 20 having a coil 21 connected on the one hand to the neutral conductor 16 and on the other hand to a control circuit 22 connected to phase 14. The control circuit 22 consists of two circuits connected in parallel in this case a priority circuit 24 in which is inserted a control push button 26 and a non-priority circuit 28 in which are inserted in series a control push button 30 and a resistor 32 with positive temperature coefficient. The mechanism 20 of the bistable type transmits to each current pulse passing through the coil 21 a movement of change of position of the power contacts 12.

Le télérupteur selon la figure 1 fonctionne de la manière suivante:The remote control switch according to FIG. 1 operates as follows:

Le télérupteur 10 étant dans une position par exemple ouverte, représenté sur la figure 1, la fermeture peut être provoquée par l'actionnement du bouton-poussoir 26 du circuit prioritaire 24 qui alimente la bobine 21. Après avoir relâché le bouton poussoir 26 le télérupteur peut être ouvert en actionnant le bouton-poussoir 26 à nouveau d'une manière bien connue des spécialistes.The remote control switch 10 being in an open position, for example, represented in FIG. 1, the closing can be caused by the actuation of the push button 26 of the priority circuit 24 which feeds the coil 21. After releasing the push button 26 the remote control switch can be opened by actuating the push button 26 again in a manner well known to specialists.

Le télérupteur 10 peut également être commandé par l'actionnement du bouton poussoir 30 du circuit non prioritaire 28 qui alimente la bobine 21 à travers la résistance à coefficient thermique positif 32. Au début la résistance est faible et la bobine 21 est parcourue par un courant i voisin de celui obtenu en l'absence de la résistance 32. Cette résistance faible est maintenue pendant une durée suffisante pour le basculement des contacts de puissance 12 par le mécanisme 20. Ce courant qui parcourt la résistance 32 provoque son échauffement et la commutation dans la zone de fortes résistances. Le courant parcourant la bobine 21 est de ce fait notablement réduit à une valeur insuffisante à l'excitation de la bobine, en l'occurrence au maintien de la palette magnétique en position attirée. Ce courant réduit, insuffisant pour exciter la bobine 21, est néanmoins suffisant pour échauffer la résistance à coefficient de température positif 32 et empêcher celle-ci de commuter vers la zone de résistance faible. Le seuil de commutation peut par exemple être voisin de la moitié du courant i normalement appliqué à la bobine 21 pour provoquer son excitation. La résistance 32 provoque la désexcitation de la bobine 21 même lors du maintien en position fermée du bouton poussoir 30 et le télérupteur 10 est prêt à une nouvelle commande, par exemple transmise par le circuit prioritaire 24 lors de la fermeture du bouton-poussoir 26. Si on relâche le bouton-poussoir 30 du circuit non prioritaire 28 la résistance 32 se refroidit et commute à une valeur de résistance faible permettant une nouvelle commande. Cette commutation s'effectue avec un certain retard qui n'est généralement pas gênant.The remote control switch 10 can also be controlled by actuating the push button 30 of the non-priority circuit 28 which supplies the coil 21 through the resistor with positive thermal coefficient 32. At the start the resistance is low and the coil 21 is traversed by a current i close to that obtained in the absence of the resistor 32. This low resistance is maintained for a sufficient time for the switching of the power contacts 12 by the mechanism 20. This current which flows through the resistor 32 causes it to heat up and switch over to the zone of strong resistances. The current flowing through the coil 21 is therefore considerably reduced to an insufficient value when the coil is excited, in this case when the magnetic paddle is kept in the attracted position. This reduced current, insufficient to excite the coil 21, is nevertheless sufficient to heat the resistance with a positive temperature coefficient 32 and prevent the latter from switching to the zone of low resistance. The switching threshold may for example be close to half of the current i normally applied to the coil 21 to cause its excitation. The resistor 32 causes the coil 21 to de-energize even when the push-button 30 is kept in the closed position and the remote control switch 10 is ready for a new command, for example transmitted by the priority circuit 24 when the push-button 26 is closed. If the push button 30 of the non-priority circuit 28 is released, the resistor 32 cools and switches to a low resistance value allowing a new command. This switching takes place with a certain delay which is generally not annoying.

La figure 2 illustre une installation plus complexe à deux télérupteurs, l'un 34 bipolaire et l'autre 36 tétrapolaire, chacun équipé de contacts de puissance 12 d'alimentation de charge 18. Le télérupteur bipolaire 34 comporte une bobine de commande 38 et un contact auxiliaire inverseur 40 représentatif de la position des contacts de puissance 12. D'une manière analogue le télérupteur tétrapolaire 36 comporte une bobine de commande 42 et un contact auxiliaire 44. Des diodes 46 sont insérées dans les circuits des contacts auxiliaires inverseurs 40-44 pour éviter des interférences des commandes. Les télérupteurs 34-36 sont raccordés au réseau 48 par l'intermédiaire de disjoncteurs de protection 50.FIG. 2 illustrates a more complex installation with two remote switches, one 34 bipolar and the other 36 four-pole, each equipped with power contacts 12 for load supply 18. The bipolar remote switch 34 comprises a control coil 38 and a auxiliary change-over contact 40 representative of the position of the power contacts 12. In a similar manner the four-pole remote control switch 36 comprises a control coil 42 and an auxiliary contact 44. Diodes 46 are inserted in the circuits of the auxiliary change-over contacts 40-44 to avoid interference from the controls. The remote control switches 34-36 are connected to the network 48 by means of protective circuit breakers 50.

Les circuits de commande des télérupteurs 34-36 sont identiques et seul celui du télérupteur 34 est décrit en détail ci-après, l'autre portant les mêmes numéros de référence. La bobine 38 est reliée à un circuit 52 de commande locale ou prioritaire ayant deux boutons-poussoirs connectés en parallèle et alimentés par l'intermédiaire d'un disjoncteur de protection 50 par le réseau 48. En parallèle du circuit de commande 52 est connecté un circuit de commande centrale ou non prioritaire 56 ayant une ligne pilote bifilaire 58. La commande centrale comporte deux boutons-poussoirs 60-62 chacun inséré dans l'un des conducteurs de la ligne pilote 58 et l'un commandant l'ouverture et l'autre la fermeture du télérupteur 34. La ligne pilote 58 est reliée par l'intermédiaire du contact auxiliaire inverseur 40 et d'une résistance 32 à coefficient de température positif à la borne de la bobine 38. Le télérupteur tétrapolaire 36 est relié à la même ligne pilote 58 de manière qu'une commande par le bouton poussoir 60 ou 62 provoque une commande simultanée des deux télérupteurs 34, 36 ou d'un nombre supérieur tous connectés à la même ligne pilote 58.The control circuits of the remote control switches 34-36 are identical and only that of the remote control switch 34 is described in detail below, the other bearing the same reference numbers. The coil 38 is connected to a local or priority control circuit 52 having two pushbuttons connected in parallel and supplied via a protective circuit breaker 50 by the network 48. In parallel with the control circuit 52 is connected a central or non-priority control circuit 56 having a two-wire pilot line 58. The central control comprises two push buttons 60-62 each inserted in one of the conductors of the pilot line 58 and one controlling the opening and other the closing of the remote control switch 34. The pilot line 58 is connected by means of the auxiliary change-over contact 40 and of a resistor 32 with a positive temperature coefficient at the terminal of the coil 38. The four-pole remote control switch 36 is connected to the same pilot line 58 so that a command by the push button 60 or 62 causes a simultaneous command of the two remote control switches 34, 36 or a greater number all connected to the same line p island 58.

Le dispositif selon la figure 2 fonctionne de la manière suivante:The device according to FIG. 2 operates as follows:

Une commande locale est provoquée par l'un des boutons-poussoirs 54 de la manière décrite ci-dessus. Une commande centralisée ou télécommande de fermeture des deux télérupteurs 34, 36 est engendrée par l'actionnement du bouton-poussoir 60, qui provoque l'alimentation des bobines 38, 42 par l'intermédiaire des contacts auxiliaires inverseurs 40, 44 et des résistances 32 à coefficient thermique positif. L'excitation des bobines 38, 42 provoque le basculement des contacts 12 et l'inversion des contacts auxiliaires 40, 44. L'inversion des contacts auxiliaires 40, 44 interrompt l'alimentation des bobines 38, 42 et les résistances 32 n'ont pas eu le temps d'atteindre leur seuil de commutation. Une commande d'ouverture peut alors être réalisée, soit par la commande centralisée à bouton poussoir d'ouverture 62, soit par l'un des boutons-poussoirs de commande locale 54. Il convient de noter que lors de la commande centrale de fermeture par l'actionnement du bouton-poussoir 60, ce dernier peut être maintenu en position de fermeture par inadvertance ce qui n'empêche pas une commande locale d'ouverture. Dès l'ouverture des contacts de puissance 12 et du basculement des contacts auxiliaires 40 la bobine 38 est à nouveau alimentée par la ligne pilote 58, mais cette commande centrale est rapidement inhibée par la commutation de la résistance 32 à coefficient thermique positif vers un seuil de résistance élevé. La commande locale d'ouverture n'est donc pas contrecarrée par la télécommande ou la commande centrale non prioritaire.Local control is caused by one of the push buttons 54 as described above. A centralized control or remote control for closing the two remote switches 34, 36 is generated by the actuation of the push button 60, which causes the coils 38, 42 to be supplied via the reversing auxiliary contacts 40, 44 and the resistors 32 with positive thermal coefficient. The excitation of the coils 38, 42 causes the tilting of the contacts 12 and the reversal of the auxiliary contacts 40, 44. The reversal of the auxiliary contacts 40, 44 interrupts the supply of the coils 38, 42 and the resistors 32 have had no time to reach their switching threshold. An opening command can then be carried out, either by the centralized command with an opening push button 62, or by one of the local control push buttons 54. It should be noted that during the central closing command by actuation of the push button 60, the latter can be inadvertently kept in the closed position which does not prevent a local opening command. As soon as the power contacts 12 are opened and the auxiliary contacts 40 switch on, the coil 38 is again supplied by the pilot line 58, but this central control is quickly inhibited by the switching of the resistor 32 with a positive thermal coefficient towards a threshold high resistance. The local opening command is therefore not thwarted by the remote control or the non-priority central command.

La figure 3 illustre une autre installation selon l'invention, par exemple un circuit d'éclairage extérieur, réalisé par un télérupteur 64 commandé localement par un bouton-poussoir 66 dont la fermeture provoque l'alimentation de la bobine 68 du télérupteur 64. Ce télérupteur peut également être commandé automatiquement par un détecteur 70, par exemple d'intrusion, qui provoque la fermeture d'un contact 72 d'alimentation de la bobine 68 par l'intermédiaire d'un contact auxiliaire inverseur 74 du télérupteur 64 et d'une résistance 76 à coefficient thermique positif. Le fonctionnement de cette commande résulte de l'exposé précédent et il suffit de préciser qu'un ordre d'éclairage donné par le détecteur d'intrusion 70 n'empêche pas la commande locale d'extinction par actionnement du bouton-poussoir 66. Dès l'ouverture des contacts du télérupteur 64 et d'inversion du contact auxiliaire 74 l'ordre d'éclairage donné par le détecteur 70 est inhibé par la résistance 76 à coefficient thermique positif qui commute vers un seuil élevé. La commande locale 66 est ainsi prioritaire et il est facile de comprendre que d'autres applications sont concevables, l'ensemble étant particulièrement simple.FIG. 3 illustrates another installation according to the invention, for example an external lighting circuit, produced by a remote control switch 64 locally controlled by a push button 66 whose closing causes the coil 68 of the remote control switch 64 to be powered. the remote control switch can also be controlled automatically by a detector 70, for example of an intrusion, which causes the closure of a contact 72 supplying the coil 68 by means of an auxiliary change-over contact 74 of the remote control switch 64 and of a resistor 76 with a positive thermal coefficient. The operation of this command results from the previous presentation and it suffices to specify that a lighting order given by the intrusion detector 70 does not prevent the local extinction command by actuation of the push button 66. From the opening of the contacts of the remote control switch 64 and of reversing of the auxiliary contact 74 the lighting order given by the detector 70 is inhibited by the resistor 76 with a positive thermal coefficient which switches to a high threshold. Local command 66 is thus given priority and it is easy to understand that other applications are conceivable, the assembly being particularly simple.

Claims (7)

  1. A control device of a remote-controlled switch or remote-controlled apparatus (10, 34, 36, 64) comprising a movable power contact (12) designed to occupy a stable closed position and a stable open position, a bistable operating mechanism (20) of said movable contact (12), a coil (21, 38, 42, 68) making said mechanism (20) switch from one position to the other at each current impulse passing through the coil (21, 38, 42, 68), and a local or priority control of the remote-controlled switch, characterized in that it comprises a central non-priority control circuit (28, 56, 72) for supply of said coil (21, 38, 42, 68), in which circuit there is connected in series with the coil (21, 38, 42, 68) a positive temperature coefficient resistor (32, 76) arranged to maintain the supply current to the coil (21, 38, 42, 68) by said non-priority circuit (28, 56, 72) during a period greater than the switching time of the mechanism (20), and to interrupt or reduce to a low value the supply current to the coil (21, 38, 42, 68) by said non-priority control circuit (28, 56, 72) after a preset period to enable a priority local control.
  2. The control device according to claim 1, characterized in that the characteristics of the positive temperature coefficient resistor (32, 76) are chosen to maintain the supply current to the coil (21, 38, 42, 68) by the non-priority circuit (28, 56, 72) during a period just necessary for switching of the mechanism (20) and that the residual current, insufficient to supply the coil (21, 38, 42, 68), is sufficient to maintain the positive temperature coefficient resistor (32, 76) in the high resistance state.
  3. The control device according to claim 1 or 2, characterized in that the non-priority control circuit (56) is a remote control circuit able to be common to several remote-controlled switches (34, 36) and comprising a central control button (60, 62).
  4. The control device according to claim 3, characterized in that it comprises an auxiliary changeover contact (40, 44) whose position is representative of that of the power contacts (12), that the remote control circuit (50) comprises a central closing control (60) and a central opening control (62), both connected by an auxiliary conductor to said changeover contact.
  5. The control device according to any one of the above claims, characterized in that the priority control is a manual control of the remote-controlled switch.
  6. The control device according to claim 1, 2, 3 or 4, comprising a priority circuit (24, 52) for supply of said coil (21, 38, 42, 68) in which circuit a local control push-button (54, 66) is connected.
  7. The control device according to any one of the above claims, characterized in that said non-priority circuit is controlled by a detector (72) or a clock delivering impulses of a duration notably greater than the switching time of the contacts (12).
EP90420438A 1989-10-20 1990-10-10 Control device for a remote control interrupter Expired - Lifetime EP0424283B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913900 1989-10-20
FR8913900A FR2653592B1 (en) 1989-10-20 1989-10-20 DEVICE FOR CONTROLLING A REMOTE SWITCH.

Publications (2)

Publication Number Publication Date
EP0424283A1 EP0424283A1 (en) 1991-04-24
EP0424283B1 true EP0424283B1 (en) 1994-12-07

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EP90420438A Expired - Lifetime EP0424283B1 (en) 1989-10-20 1990-10-10 Control device for a remote control interrupter

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EP (1) EP0424283B1 (en)
DE (1) DE69014827T2 (en)
ES (1) ES2067713T3 (en)
FR (1) FR2653592B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689395A (en) * 1995-09-14 1997-11-18 Raychem Corporation Overcurrent protection circuit
US5864458A (en) * 1995-09-14 1999-01-26 Raychem Corporation Overcurrent protection circuits comprising combinations of PTC devices and switches
US5666254A (en) * 1995-09-14 1997-09-09 Raychem Corporation Voltage sensing overcurrent protection circuit
US5737160A (en) * 1995-09-14 1998-04-07 Raychem Corporation Electrical switches comprising arrangement of mechanical switches and PCT device
IT1305168B1 (en) * 1998-11-06 2001-04-10 Massimo Catena COMMAND DEVICE FOR ELECTRIC USERS WITH RESETE FUNCTION ELECTRICAL SYSTEM USING SUCH COMMAND DEVICE
DE102008057042B4 (en) * 2008-11-12 2013-03-28 Waldemar Stach Energy-saving sensor circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH177105A (en) * 1933-10-14 1935-05-15 Signum Ag Switching device with a relay, which in the working position prepares the reversal of another organ of the switching device.
DE713975C (en) * 1938-11-10 1941-11-19 Oerlikon Maschf Electrical control device for switch drives
FR2274151A1 (en) * 1974-06-07 1976-01-02 Gardy ELECTRICAL INSTALLATION DIAGRAM WITH REMOTE SWITCHES
FR2530091A1 (en) * 1982-07-12 1984-01-13 Garcia Jose CIRCUIT FOR CONTROLLING THE STOPPING OF DEVICES, USED IN PARTICULAR FOR EXTINGUISHING LIGHTING MEANS
FR2536904B1 (en) * 1982-11-29 1985-11-08 Merlin Gerin ELECTRONIC CONTROL CIRCUIT FOR A MULTI-OPERATION APPARATUS EQUIPPED WITH AN ELECTROMAGNET MECHANISM
FR2579821B1 (en) * 1985-03-26 1987-05-15 Merlin Gerin MULTIPOLAR REMOTE CUTTING APPARATUS

Also Published As

Publication number Publication date
FR2653592A1 (en) 1991-04-26
FR2653592B1 (en) 1991-12-20
DE69014827T2 (en) 1995-06-08
DE69014827D1 (en) 1995-01-19
ES2067713T3 (en) 1995-04-01
EP0424283A1 (en) 1991-04-24

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