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EP1618579A1 - Electromechanical switch - Google Patents

Electromechanical switch

Info

Publication number
EP1618579A1
EP1618579A1 EP04719975A EP04719975A EP1618579A1 EP 1618579 A1 EP1618579 A1 EP 1618579A1 EP 04719975 A EP04719975 A EP 04719975A EP 04719975 A EP04719975 A EP 04719975A EP 1618579 A1 EP1618579 A1 EP 1618579A1
Authority
EP
European Patent Office
Prior art keywords
contact
auxiliary
contact bridge
bridge
main
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.)
Granted
Application number
EP04719975A
Other languages
German (de)
French (fr)
Other versions
EP1618579B1 (en
Inventor
Alf Wabner
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1618579A1 publication Critical patent/EP1618579A1/en
Application granted granted Critical
Publication of EP1618579B1 publication Critical patent/EP1618579B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2025—Bridging contacts comprising two-parallel bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2016—Bridging contacts in which the two contact pairs commutate at substantially different moments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/543—Auxiliary switch inserting resistor during closure of contactor

Definitions

  • the invention relates to an electromechanical switching device / in particular a capacitor contactor, according to the preamble of claim 1.
  • a switching device is known for example from DE 31 05 117 C2.
  • the switching device known from DE 31 05 117 C2 has main contacts and leading contacts, also referred to as auxiliary contacts, which are interconnected with damping resistors under capacitive loading.
  • auxiliary contacts which are interconnected with damping resistors under capacitive loading.
  • the auxiliary contacts When the switching device or capacitor contactor is switched on, the auxiliary contacts initially close, so that a connected capacitor is initially precharged via the damping series resistors. This weakens the inrush current when the main contacts close.
  • the main contacts open, which thus switch off almost without current. Overall, therefore, arcing arises predominantly on the main contacts. Since such arcing leads to changes in the contact pieces, the risk of welding increases.
  • auxiliary contacts which form a zero-point extinguisher, have a relatively long arcing time when switched off, which shortens the life of the device.
  • the actuation of the main contacts could be decoupled from the actuation of the auxiliary contacts, but this would require a relatively complex construction of the switching mechanism.
  • the invention is based on the object of specifying an electromechanical, in particular electromagnetic, switching device with a main contact and an auxiliary contact leading in advance during the switch-on process, in particular for reducing an inrush current peak, which can be achieved with simpler Characterized by a particularly low wear due to arcing at the main and / or auxiliary contact.
  • This object is achieved according to the invention by an electromechanical switching device with the features of claim 1 and by an electromechanical switching device with the features of claim 6.
  • This switching device has a main contact which has a number, generally two, main fixed contacts and one with them connectable movable main contact bridge comprises.
  • the switching device has an auxiliary contact that precedes the switch-on process and, analogously, comprises a number of auxiliary fixed contacts and a movable auxiliary contact bridge that can be connected to them.
  • a contact bridge holder or carrier mechanically connected to the two contact bridges is provided for actuating both the main contact and the auxiliary contact. At least one of the contact parts main fixed contact, main contact bridge, auxiliary fixed contact and auxiliary contact bridge is spring-loaded.
  • the auxiliary contact bridge or the at least one auxiliary fixed contact can assume two stable positions which are defined relative to the contact bridge holder in the case of the bistable auxiliary contact bridge or relative to a rigid structure of the switching device in the case of the bistable auxiliary contact.
  • the switching device When the switching device is switched on, when the auxiliary contact closes, the auxiliary contact bridge or the auxiliary fixed contact is in the first position and thus ensures the switching behavior of the auxiliary contact, which leads the main contact.
  • the auxiliary contact bridge or the auxiliary fixed contact is in the second stable position, at least at the time of opening of the auxiliary contact, by which the switching contact of the auxiliary contact also leads in advance during the switching-off process, i.e. the auxiliary contact opens before the main contact. Switching between the first and the second stable position of the Auxiliary contact bridge or the auxiliary fixed contact or the auxiliary fixed contacts occurs when the contact bridge carrier is actuated.
  • Switching device is designed such that only in the first position of the auxiliary contact bridge or the auxiliary fixed contact, the auxiliary contact bridge can be electrically connected to the auxiliary fixed contacts when the contact bridge holder is actuated, while in the second position of the auxiliary contact bridge or the auxiliary fixed contact, the auxiliary contact bridge regardless of the position of the contact bridge carrier is always separated from the auxiliary contacts.
  • the auxiliary contact bridge or the auxiliary fixed contact When the electromechanical switching device is switched on, the auxiliary contact bridge or the auxiliary fixed contact is transferred from the first position into the second position by actuating the contact bridge support after the main contact has been closed, the auxiliary contact thus being able to be opened after the switch-on process has ended.
  • the auxiliary contact bridge or the auxiliary fixed contact When switching off, the auxiliary contact bridge or the auxiliary fixed contact is initially in the second position.
  • the auxiliary contact bridge or the auxiliary fixed contact triggered again by the displacement of the contact bridge holder, in cooperation with a stop provided for this purpose, changes to the first position, but only after the main contact has opened.
  • the auxiliary contact is not closed again by switching the auxiliary contact bridge or the auxiliary fixed contact during the switch-off process.
  • the auxiliary contact therefore remains inoperative during the entire switch-off process.
  • a space-saving design of the switching device is preferably realized in that the main and auxiliary contact bridges are arranged at least approximately parallel to one another.
  • the contact bridge holder is preferably arranged perpendicular to one of the contact bridges, in particular to both contact bridges.
  • the contact bridge is preferably also resiliently mounted in the contact bridge carrier, in particular with a spring arranged within the cross section of the contact bridge carrier.
  • the design of the switching device corresponds in embodiments which have the features mentioned, in so far largely the design of a switching device known for example from DE 31 05 117 C2.
  • the mounting of the auxiliary contact bridges in or on the contact bridge support and / or the mounting of the auxiliary fixed contacts in the switching device deviate from this known switching device.
  • the auxiliary contact bridge in the switching device known from DE 31 05 117 C2 can only assume a single stable position, namely pressed by spring force in the direction of the main contact bridge, two defined stable positions of the auxiliary contact bridge are provided in the switching device according to the invention according to a first alternative.
  • the auxiliary contact bridge can be displaceable relative to the contact bridge holder perpendicularly to the latter and, in particular by means of spring force support, can be snapped onto the contact bridge holder in two different positions.
  • the auxiliary contact bridge is mounted in a structurally very simple manner on a suspension point that is immovable relative to the contact bridge support in or on the contact bridge support.
  • the auxiliary contact bridge in order to be able to assume two different stable positions, the auxiliary contact bridge must have at least slight mobility.
  • the auxiliary contact bridge is preferably designed as a snap spring which is mounted approximately centrally on the contact bridge carrier.
  • the auxiliary contact bridge is rigid and non-displaceably mounted in the contact bridge support, but the auxiliary fixed contact, preferably two auxiliary fixed contacts arranged symmetrically to the contact bridge support, is designed to be resilient with two possible stable positions.
  • the auxiliary fixed contact is advantageously designed as a snap spring.
  • an inherently rigid auxiliary fixed contact can also be provided, which can assume two stable positions due to its movable, for example displaceable or pivotable mounting in the housing of the switching device.
  • 3a to 3d show an electromechanical switching device in the second embodiment during the switch-on process
  • FIGS. 1a to 1d and 2a to 2d show, in greatly simplified sectional cross-sectional representations, an electromechanical switching device 1 designed as a capacitor contactor in different switching states.
  • the switching device 1 has a main contact 2 with a main contact bridge 3 and main fixed contacts 4 and an auxiliary contact 5 with an auxiliary contact bridge 6 and auxiliary fixed contacts 7.
  • a contact bridge support 8 is provided for actuating the contact bridges 3, 6.
  • the main contact bridge 3 is slidably mounted by means of a compression spring 9.
  • the main contact bridge 3 can assume a single stable position relative to the contact bridge support 8, also referred to as a slide, namely pressed in the direction of the main fixed contacts 4.
  • the auxiliary contact bridge 6 is connected to the contact bridge carrier 8 at a point which is fixed relative to the contact bridge carrier 8, namely at the suspension point 10.
  • the auxiliary contact bridge 6 is designed as a snap spring, which can take two stable positions. To switch between these two stable positions of the auxiliary contact bridges 6, the auxiliary fixed contacts 7 are shown on the one hand, in the illustration below the auxiliary contacts 6, and on the other hand, two stops 11 are provided, in the illustration above the auxiliary contact bridge 6.
  • FIG la shows the switching device 1 in the switched-off state.
  • the auxiliary contact bridge 6 is in the first position.
  • auxiliary contact 5 FIG. 1b
  • the auxiliary contact bridge 6 temporarily assumes an unstable intermediate position.
  • the auxiliary contact 5 remains closed.
  • the main contact 2 now also closes (FIG. 1c). If the contact bridge support 8 is displaced further towards the switch-on position with compression of the spring 9 (FIG.
  • the auxiliary contact bridge 6 which is mounted non-displaceably at the suspension point 10 relative to the contact bridge carrier 8, snaps, ie assumes its second stable position.
  • the auxiliary contact 5 is always open in the exemplary embodiment shown, regardless of the position of the contact bridge carrier 8.
  • the auxiliary contact 5 can also remain closed even when the main contact 2 is closed and only open during the switch-off process, before the main contact 2, ie in advance.
  • the switch-off process of the switching device 1 is explained below with reference to FIGS. 2a to 2d.
  • the state of the switching device according to FIG 2a corresponds to the state of FIG ld. If the contact bridge carrier 8 is moved in the direction of the switch-off position, upward in the illustration, the auxiliary contact 5 first opens, provided that it was not already open, as in the exemplary embodiment, and then the main contact 2 (FIG. 2c). The auxiliary contact bridge 6 strikes the stop 11 during the opening of the main contact 2 and snaps, triggered by the opening movement of the contact bridge carrier 8, back into the first stable state (FIG. 2d). However, the auxiliary contact bridge 6 has already been lifted so far from the auxiliary fixed contacts 7 that the auxiliary contact 5 no longer closes. The auxiliary contact 5 thus remains open during the entire switch-off process in the exemplary embodiment.
  • the switching position according to FIG 2d corresponds to the switching position according to FIG la.
  • FIGS. 3a to 3d and 4a to 4d show a switching device 1 in an alternative design, which differs from the switching device according to FIGS. 1a to 2d with regard to the design of the auxiliary contact 5.
  • the auxiliary contact bridge 6 is rigid, while the auxiliary fixed contacts 7 are resilient and two stable ones Can take positions.
  • the auxiliary fixed contacts 7 are clamped on one side in the housing of the switching device 1, not shown.
  • the switch-on process of the switching device 1 can be seen from FIGS. 3a to 3d.
  • the auxiliary fixed contacts 7 In their first stable position (FIG. 3a), the auxiliary fixed contacts 7 are bent somewhat towards the auxiliary contact bridge 6, which is arranged rigidly and straight in the illustration above this.
  • the transition to the second stable position of the auxiliary auxiliary contacts 7 takes place analogously to the switching process according to FIGS. 1a to 1d. If the contact bridge carrier 8 is in the closed end position (FIG. 3d), the auxiliary contact 5 is open in the exemplary embodiment shown. Alternatively, the auxiliary contact 5 could also remain closed.
  • the switching position according to FIG. 4a which marks the beginning of the switch-off process, corresponds to the switching position according to FIG. 3d.
  • the stops 11 come into operation, which in this case are attached to the contact bridge support 8.
  • the auxiliary fixed contacts 7 are transferred from their second stable position, in which they are deflected in the direction of the main contact 2 (FIG. 4a), to their first stable position (FIG. 4d).
  • the auxiliary contact 5 remains open when the switching device 1 is switched off, analogously to FIGS. 2a to 2d. Deviating from this could be a
  • Opening of the auxiliary contact 5 may also be provided only during the switch-off process, but in any case before the main contact 2 is opened.
  • the switching position according to FIG. 4d corresponds to the switching position according to FIG. 3a.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Slide Switches (AREA)
  • Push-Button Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention relates to an electromechanical switch comprising a main contact (2) provided with a number of main fixed contacts (4) and a mobile main contact bridge (3), an auxiliary contact (5) which precedes the main contact in the switch-on process and comprises a number of auxiliary fixed contacts (7) and a mobile auxiliary contact bridge (6), and a contact bridge carrier (8) for actuating the main contact bridge (3) and the auxiliary contact bridge (6), at least one of the contact parts (3,4,6,7) being spring-mounted. Said electromechanical switch has two stable positions of the auxiliary contact bridge (6) or the auxiliary fixed contact (7). During the switching on process carried out by actuation of the contact bridge carrier (8) by means of the auxiliary contact bridge (6) or an auxiliary fixed contact (7) in the first stable position, the auxiliary contact (5) closes before the main contact (2), and during the switching off process by actuation of the contact bridge carrier (8) in the opposite direction, the auxiliary contact (5) with the auxiliary contact bridge (6) or the auxiliary fixed contact (7) in the second stable position opens before the main contact (2).

Description

Beschreibungdescription

Elektromechanisches SchaltgerätElectromechanical switching device

Die Erfindung betrifft ein elektromechanisches Schaltgerät/ insbesondere ein Kondensatorschütz, nach dem Oberbegriff des Anspruchs 1. Ein derartiges Schaltgerät ist beispielsweise aus der DE 31 05 117 C2 bekannt.The invention relates to an electromechanical switching device / in particular a capacitor contactor, according to the preamble of claim 1. Such a switching device is known for example from DE 31 05 117 C2.

Das aus der DE 31 05 117 C2 bekannte Schaltgerät weist Hauptkontakte und voreilende Kontakte, auch als Hilfskontakte bezeichnet, auf, die mit Dämpfungsvorwiderständen bei kapazitiver Belastung zusammengeschaltet sind. Entsprechendes gilt beispielsweise auch für ein aus der DE 197 29 595 CI bekann- tes Kondensatorschütz. Beim Einschalten des Schaltgeräts bzw. Kondensatorschützes schließen zunächst die Hilfskontakte, so dass über die Dämpfungsvorwiderstände ein angeschlossener Kondensator zunächst vorgeladen wird. Hierdurch wird die Einschaltstromspitze beim Schließen der Hauptkontakte abge- schwächt. Beim Ausschalten öffnen zunächst die Hauptkontakte, welche damit nahezu stromlos ausschalten. Insgesamt treten somit überwiegend Einschaltlichtbögen an den Hauptkontakten auf. Da derartige Einschaltlichtbögen zu Veränderungen an den Kontaktstücken führen, steigt die Verschweißgefahr. Des Wei- teren kommt es an den Hilfskontakten, welche einen Nullpunktlöscher bilden, zu einer relativ langen Lichtbogenbrenndauer beim Ausschalten, wodurch die Lebensdauer des Gerätes verkürzt wird. Um diesen Nachteilen zu begegnen, könnte die Betätigung der Hauptkontakte von der Betätigung der Hilfskontakte entkoppelt werden, was jedoch eine relativ aufwändige Konstruktion des Schaltmechanismus bedingen würde.The switching device known from DE 31 05 117 C2 has main contacts and leading contacts, also referred to as auxiliary contacts, which are interconnected with damping resistors under capacitive loading. The same applies, for example, to a capacitor contactor known from DE 197 29 595 CI. When the switching device or capacitor contactor is switched on, the auxiliary contacts initially close, so that a connected capacitor is initially precharged via the damping series resistors. This weakens the inrush current when the main contacts close. When switching off, the main contacts open, which thus switch off almost without current. Overall, therefore, arcing arises predominantly on the main contacts. Since such arcing leads to changes in the contact pieces, the risk of welding increases. Furthermore, the auxiliary contacts, which form a zero-point extinguisher, have a relatively long arcing time when switched off, which shortens the life of the device. In order to overcome these disadvantages, the actuation of the main contacts could be decoupled from the actuation of the auxiliary contacts, but this would require a relatively complex construction of the switching mechanism.

Der Erfindung liegt die Aufgabe zugrunde, ein elektromechanisches, insbesondere elektromagnetisches, Schaltgerät mit ei- nem Hauptkontakt und einem beim Einschaltvorgang, insbesondere zur Reduzierung einer Einschaltstromspitze, vorauseilenden Hilfskontakt anzugeben, welches sich bei einfacher Konstruktion durch einen besonders geringen Verschleiß durch Lichtbögen am Haupt- und/oder Hilfskontakt auszeichnet.The invention is based on the object of specifying an electromechanical, in particular electromagnetic, switching device with a main contact and an auxiliary contact leading in advance during the switch-on process, in particular for reducing an inrush current peak, which can be achieved with simpler Characterized by a particularly low wear due to arcing at the main and / or auxiliary contact.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein elektro- mechanisches Schaltgerät mit den Merkmalen des Anspruchs 1 sowie durch ein elektromechanisches Schaltgerät mit den Merkmalen des Anspruchs 6. Dieses Schaltgerät weist einen Hauptkontakt auf, welcher eine Anzahl, in der Regel zwei, Hauptfestkontakte und eine mit diesen verbindbare bewegliche Hauptkontaktbrücke umfasst. Zusätzlich weist das Schaltgerät einen beim Einschaltvorgang vorauseilenden Hilfskontakt auf, welcher analog eine Anzahl Hilfsfestkontakte und eine mit diesen verbindbare bewegliche Hilfskontaktbrucke umfasst. Zur Betätigung sowohl des Hauptkontakts als auch des Hilfskon- takts ist ein mit den beiden Kontaktbrücken mechanisch verbundener Kontaktbrückenhalter oder -träger vorgesehen. Zumindest eines der Kontaktteile Hauptfestkontakt, Hauptkontaktbrücke, Hilfsfestkontakt und Hilfskontaktbrucke ist federnd gelagert .This object is achieved according to the invention by an electromechanical switching device with the features of claim 1 and by an electromechanical switching device with the features of claim 6. This switching device has a main contact which has a number, generally two, main fixed contacts and one with them connectable movable main contact bridge comprises. In addition, the switching device has an auxiliary contact that precedes the switch-on process and, analogously, comprises a number of auxiliary fixed contacts and a movable auxiliary contact bridge that can be connected to them. A contact bridge holder or carrier mechanically connected to the two contact bridges is provided for actuating both the main contact and the auxiliary contact. At least one of the contact parts main fixed contact, main contact bridge, auxiliary fixed contact and auxiliary contact bridge is spring-loaded.

Die Hilfskontaktbrucke oder der zumindest eine Hilfsfestkon- takt kann zwei stabile Stellungen einnehmen, welche im Fall der bistabilen Hilfskontaktbrucke relativ zum Kontaktbrückenhalter beziehungsweise im Fall des bistabilen Hilfsfestkon- taktes relativ zu einer starren Struktur des Schaltgerätes definiert sind. Während des Einschaltens des Schaltgerätes befindet sich beim Schließen des Hilfskontakts die Hilfskontaktbrucke bzw. der Hilfsfestkontakt in der ersten Stellung und gewährleistet damit das relativ zum Hauptkontakt vorauseilende Schaltverhalten des Hil skontaktes. Beim Ausschalten des Schaltgerätes befindet sich zumindest zum Zeitpunkt des Öffnens des Hilfskontaktes die Hilfskontaktbrucke bzw. der Hilfsfestkontakt in der zweiten stabilen Stellung, durch welche auch beim Ausschaltvorgang ein vorauseilendes Schaltverhalten des Hilfskontaktes gegeben ist, das heißt der Hilfskontakt vor dem Hauptkontakt öffnet. Die Umschaltung zwischen der ersten und der zweiten stabilen Stellung der Hilfskontaktbrucke bzw. des Hilfsfestkontaktes oder der Hilfsfestkontakte geschieht mit der Betätigung des Kontaktbrückenträgers .The auxiliary contact bridge or the at least one auxiliary fixed contact can assume two stable positions which are defined relative to the contact bridge holder in the case of the bistable auxiliary contact bridge or relative to a rigid structure of the switching device in the case of the bistable auxiliary contact. When the switching device is switched on, when the auxiliary contact closes, the auxiliary contact bridge or the auxiliary fixed contact is in the first position and thus ensures the switching behavior of the auxiliary contact, which leads the main contact. When the switching device is switched off, the auxiliary contact bridge or the auxiliary fixed contact is in the second stable position, at least at the time of opening of the auxiliary contact, by which the switching contact of the auxiliary contact also leads in advance during the switching-off process, i.e. the auxiliary contact opens before the main contact. Switching between the first and the second stable position of the Auxiliary contact bridge or the auxiliary fixed contact or the auxiliary fixed contacts occurs when the contact bridge carrier is actuated.

In einer konstruktiv einfach realisierbaren Bauform desIn a structurally easy to implement design of the

Schaltgerätes ist dieses derart gestaltet, dass ausschließlich in der ersten Stellung der Hilfskontaktbrucke bzw. des Hilfsfestkontaktes die Hilfskontaktbrucke bei Betätigung des Kontaktbrückenhalters elektrisch mit den Hilfsfestkontakten verbindbar ist, während in der zweiten Stellung der Hilfskontaktbrucke bzw. des Hilfsfestkontaktes die Hilfskontaktbrucke unabhängig von der Position des Kontaktbrückenträgers stets von den Hilfsfestkontakten getrennt ist.Switching device is designed such that only in the first position of the auxiliary contact bridge or the auxiliary fixed contact, the auxiliary contact bridge can be electrically connected to the auxiliary fixed contacts when the contact bridge holder is actuated, while in the second position of the auxiliary contact bridge or the auxiliary fixed contact, the auxiliary contact bridge regardless of the position of the contact bridge carrier is always separated from the auxiliary contacts.

Beim Einschalten des elektromechanischen Schaltgerätes wird nach einer bevorzugten Ausgestaltung durch Betätigung des Kontaktbrückenträgers nach dem Schließen des Hauptkontakts die Hilfskontaktbrucke bzw. der Hilfsfestkontakt von der ersten Stellung in die zweite Stellung überführt, wobei der Hilfskontakt damit nach Beendigung des Einschaltvorgangs geöffnet sein kann. Beim Ausschaltvorgang ist somit die Hilfskontaktbrucke bzw. der Hilfsfestkontakt zunächst in der zweiten Position. Während des Ausschaltvorgangs wechselt die Hilfskontaktbrucke bzw. der Hilfsfestkontakt, ausgelöst wie- derum durch die Verlagerung des Kontaktbrückenhalters, unter Zusammenwirkung mit einem hierfür vorgesehenen Anschlag, in die erste Position, jedoch erst, nachdem der Hauptkontakt geöffnet ist. Durch das Umschalten der Hilfskontaktbrucke bzw. des Hilfsfestkontaktes während des Ausschaltvorgangs wird der Hilfskontakt nicht wieder geschlossen. Der Hilfskontakt bleibt somit während des gesamten Ausschaltvorgangs außer Funktion.When the electromechanical switching device is switched on, the auxiliary contact bridge or the auxiliary fixed contact is transferred from the first position into the second position by actuating the contact bridge support after the main contact has been closed, the auxiliary contact thus being able to be opened after the switch-on process has ended. When switching off, the auxiliary contact bridge or the auxiliary fixed contact is initially in the second position. During the switch-off process, the auxiliary contact bridge or the auxiliary fixed contact, triggered again by the displacement of the contact bridge holder, in cooperation with a stop provided for this purpose, changes to the first position, but only after the main contact has opened. The auxiliary contact is not closed again by switching the auxiliary contact bridge or the auxiliary fixed contact during the switch-off process. The auxiliary contact therefore remains inoperative during the entire switch-off process.

Dadurch, dass beim Ausschaltvorgang allein der Hauptkontakt schaltet, tritt typischerweise nicht nur beim Einschaltvorgang, sondern auch beim Ausschaltvorgang ein Lichtbogen am Hauptkontakt auf. Zusätzlich zur Schonung der Hilfskontakte hat dies den Vorteil, dass eventuell am Hauptkontakt vorhandene, durch den Einschaltlichtbogen gebildete entfestigte Kontaktmasse wieder überschmilzt, wodurch ein Verschweißrisiko gemindert und damit die Lebensdauer des Schaltgerätes erhöht ist. Eine einfache Konstruktion des Schaltgerätes ist dadurch erreicht, dass sowohl die Hauptkontaktbrücke als auch die Hilfskontaktbrucke bei allen Schaltvorgängen mit dem Kontaktbrückenhalter gekoppelt bleiben.Because only the main contact switches during the switch-off process, an arc arises at the main contact not only during the switch-on process but also during the switch-off process. In addition to protecting the auxiliary contacts This has the advantage that any softened contact mass present on the main contact and formed by the switch-on arc melts again, thereby reducing the risk of welding and thus increasing the service life of the switching device. A simple construction of the switching device is achieved in that both the main contact bridge and the auxiliary contact bridge remain coupled to the contact bridge holder during all switching operations.

Eine Raum sparende Gestaltung des Schaltgerätes ist bevorzugt dadurch realisiert, dass die Haupt- und die Hilfskontaktbrucke zumindest annähernd parallel zueinander angeordnet sind. Der Kontaktbrückenhalter ist bevorzugt senkrecht zu einer der Kontaktbrücken, insbesondere zu beiden Kontaktbrüc- ken, angeordnet. In an sich bekannter Weise ist weiterhin die Kontaktbrücke vorzugsweise federnd im Kontaktbrückenträger, insbesondere mit einer innerhalb des Querschnitts des Kon- taktbrückenträgers angeordneten Feder, gelagert. Der Aufbau des Schaltgerätes entspricht in Ausführungsformen, welche die genannten Merkmale aufweisen, insofern weitgehend dem Aufbau eines beispielsweise aus der DE 31 05 117 C2 bekannten Schaltgerätes .A space-saving design of the switching device is preferably realized in that the main and auxiliary contact bridges are arranged at least approximately parallel to one another. The contact bridge holder is preferably arranged perpendicular to one of the contact bridges, in particular to both contact bridges. In a manner known per se, the contact bridge is preferably also resiliently mounted in the contact bridge carrier, in particular with a spring arranged within the cross section of the contact bridge carrier. The design of the switching device corresponds in embodiments which have the features mentioned, in so far largely the design of a switching device known for example from DE 31 05 117 C2.

Von diesem bekannten Schaltgerät weicht jedoch die Lagerung der Hilfskontaktbrucke im oder am Kontaktbrückenträger und/ oder die Lagerung der Hilfsfestkontakte im Schaltgerät ab. Während die Hilfskontaktbrucke bei dem aus der DE 31 05 117 C2 bekannten Schaltgerät lediglich eine einzige stabile Stellung, nämlich durch Federkraft in Richtung der Hauptkontaktbrücke gedrückt, einnehmen kann, sind beim erfindungsgemäßen Schaltgerät nach einer ersten Alternative zwei definierte stabile Stellungen der Hilfskontaktbrucke vorgesehen. Hierbei kann beispielsweise die Hilfskontaktbrucke relativ zum Kontaktbrückenhalter senkrecht zu diesem ver- schiebbar sein und, insbesondere durch Federkraftunterstützung, in zwei verschiedenen Positionen am Kontaktbrückenhalter einrastbar sein. Nach einer besonders vorteilhaften Ausführungsform ist jedoch die Hilfskontaktbrucke in konstruktiv sehr einfacher Weise an einem relativ zum Kontaktbrückenträger unverschieblichen Aufhängungspunkt im oder am Kontaktbrückenträger gelagert. In diesem Fall uss die Hilfskontaktbrucke, um zwei unterschiedliche stabile Stellungen einnehmen zu können, in sich eine zumindest geringfügige Beweglichkeit aufweisen. Vorzugsweise ist die Hilfskontaktbrucke als Schnappfeder ausgebildet, welche etwa mittig am Kontaktbrückenträger gelagert ist.However, the mounting of the auxiliary contact bridges in or on the contact bridge support and / or the mounting of the auxiliary fixed contacts in the switching device deviate from this known switching device. While the auxiliary contact bridge in the switching device known from DE 31 05 117 C2 can only assume a single stable position, namely pressed by spring force in the direction of the main contact bridge, two defined stable positions of the auxiliary contact bridge are provided in the switching device according to the invention according to a first alternative. In this case, for example, the auxiliary contact bridge can be displaceable relative to the contact bridge holder perpendicularly to the latter and, in particular by means of spring force support, can be snapped onto the contact bridge holder in two different positions. After a particularly advantageous one Embodiment, however, the auxiliary contact bridge is mounted in a structurally very simple manner on a suspension point that is immovable relative to the contact bridge support in or on the contact bridge support. In this case, in order to be able to assume two different stable positions, the auxiliary contact bridge must have at least slight mobility. The auxiliary contact bridge is preferably designed as a snap spring which is mounted approximately centrally on the contact bridge carrier.

Nach einer zweiten Alternative ist die Hilfskontaktbrucke starr ausgebildet und unverschiebbar im Kontaktbrückenträger gelagert, jedoch der Hilfsfestkontakt, bevorzugt zwei symmetrisch zum Kontaktbrückenträger angeordnete Hilfsfestkon- takte, federnd mit zwei möglichen stabilen Stellungen ausgebildet. Vorteilhafterweise ist bei dieser Ausführungsform der Hilfsfestkontakt als Schnappfeder ausgebildet. Ebenso kann jedoch ein in sich starrer Hilfsfestkontakt vorgesehen sein, welcher durch dessen bewegliche, beispielsweise verschiebbare oder verschwenkbare Lagerung im Gehäuse des Schaltgerätes zwei stabile Stellungen einnehmen kann.According to a second alternative, the auxiliary contact bridge is rigid and non-displaceably mounted in the contact bridge support, but the auxiliary fixed contact, preferably two auxiliary fixed contacts arranged symmetrically to the contact bridge support, is designed to be resilient with two possible stable positions. In this embodiment, the auxiliary fixed contact is advantageously designed as a snap spring. However, an inherently rigid auxiliary fixed contact can also be provided, which can assume two stable positions due to its movable, for example displaceable or pivotable mounting in the housing of the switching device.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Hierin zeigen jeweils in schematischen Darstellungen:An exemplary embodiment of the invention is explained in more detail below with reference to a drawing. In each of these, schematic representations show:

FIG la bis ld ein elektromechanisches Schaltgerät in einer ersten Ausführungsform beim Einschaltvorgang,1 a to 1 d an electromechanical switching device in a first embodiment during the switch-on process,

FIG 2a bis 2d das elektromechanische Schaltgerät nach FIG la bis ld beim Ausschaltvorgang,2a to 2d the electromechanical switching device according to FIG la to ld during the switch-off process,

FIG 3a bis 3d ein elektromechanisches Schaltgerät in zweiten Ausführungsform beim Einschaltvorgang, und3a to 3d show an electromechanical switching device in the second embodiment during the switch-on process, and

FIG 4a bis 4d das elektromechanische Schaltgerät nach FIG 3a bis 3d beim Ausschaltvorgang.4a to 4d the electromechanical switching device according to FIGS. 3a to 3d during the switch-off process.

Einander entsprechende oder gleichwirkende Teile sind in allen Figuren mit den gleichen Bezugszeichen gekennzeichnet. Die FIG la bis ld und 2a bis 2d zeigen in stark vereinfachten ausschnittsweisen Querschnittsdarstellungen ein als Kondensa- torschütz ausgebildetes elektromechanisches Schaltgerät 1 in unterschiedlichen Schaltzuständen. Das Schaltgerät 1 weist einen Hauptkontakt 2 mit einer Hauptkontaktbrücke 3 und Hauptfestkontakten 4 sowie einen Hilfskontakt 5 mit einer Hilfskontaktbrucke 6 und Hilfsfestkontakten 7 auf. Zur Betätigung der Kontaktbrücken 3, 6 ist ein Kontaktbrückenträger 8 vorgesehen. In diesem ist die Hauptkontaktbrücke 3 mittels einer Druckfeder 9 verschiebbar gelagert. Durch die Beaufschlagung mit der Druckfeder 9 kann die Hauptkontaktbrücke 3 eine einzige stabile Stellung relativ zum auch als Schieber bezeichneten Kontaktbrückenträger 8, nämlich in Richtung der Hauptfestkontakte 4 gedrückt, einnehmen. Die Hilfskontakt- brücke 6 ist im Gegensatz zur Hauptkontaktbrücke 3 an einem relativ zum Kontaktbrückenträger 8 festen Punkt, nämlich am Aufhängungspunkt 10, mit dem Kontaktbrückenträger 8 verbunden. Die Hilfskontaktbrucke 6 ist als Schnappfeder ausgebildet, welche zwei stabile Stellungen einnehmen kann. Zum U - schalten zwischen diesen zwei stabilen Stellungen der Hilfskontaktbrucke 6 sind zum einen, in der Darstellung unterhalb der Hilfskontakte 6, die Hilfsfestkontakte 7 und zum anderen, in der Darstellung oberhalb der Hilfskontaktbrucke 6, zwei Anschläge 11 vorgesehen.Corresponding or equivalent parts are identified in all figures with the same reference numerals. FIGS. 1a to 1d and 2a to 2d show, in greatly simplified sectional cross-sectional representations, an electromechanical switching device 1 designed as a capacitor contactor in different switching states. The switching device 1 has a main contact 2 with a main contact bridge 3 and main fixed contacts 4 and an auxiliary contact 5 with an auxiliary contact bridge 6 and auxiliary fixed contacts 7. A contact bridge support 8 is provided for actuating the contact bridges 3, 6. In this the main contact bridge 3 is slidably mounted by means of a compression spring 9. By the action of the compression spring 9, the main contact bridge 3 can assume a single stable position relative to the contact bridge support 8, also referred to as a slide, namely pressed in the direction of the main fixed contacts 4. In contrast to the main contact bridge 3, the auxiliary contact bridge 6 is connected to the contact bridge carrier 8 at a point which is fixed relative to the contact bridge carrier 8, namely at the suspension point 10. The auxiliary contact bridge 6 is designed as a snap spring, which can take two stable positions. To switch between these two stable positions of the auxiliary contact bridges 6, the auxiliary fixed contacts 7 are shown on the one hand, in the illustration below the auxiliary contacts 6, and on the other hand, two stops 11 are provided, in the illustration above the auxiliary contact bridge 6.

Die FIG la zeigt das Schaltgerät 1 im ausgeschalteten Zustand. Die Hilfskontaktbrucke 6 befindet sich in der ersten Stellung. Beim Einschalten des Schaltgerätes 1 durch Verlagerung des Kontaktbrückenträgers 8, in der Darstellung nach un- ten, schließt zunächst der Hilfskontakt 5 (FIG lb) . Im weiteren Verlauf der Betätigung des Kontaktbrückenträgers 8 nimmt die Hilfskontaktbrucke 6 vorübergehend eine instabile Zwischenstellung ein. Der Hilfskontakt 5 bleibt dabei geschlossen. Bei geschlossenem Hilfskontakt 5 schließt nunmehr auch der Hauptkontakt 2 (FIG lc) . Wird der Kontaktbrückenträger 8 unter Komprimierung der Feder 9 weiter in Richtung Einschaltposition verlagert (FIG ld) , auch als Durchdruck be- zeichnet, so schnappt die am Aufhängungspunkt 10 unver- schieblich relativ zum Kontaktbrückenträger 8 gelagerte Hilfskontaktbrucke 6 um, d.h. nimmt deren zweite stabile Stellung ein. In dieser zweiten stabilen Stellung der Hilfs- kontaktbrücke 6 ist im dargestellten Ausführungsbeispiel der Hilfskontakt 5, unabhängig von der Position des Kontaktbrückenträgers 8, stets geöffnet. Bei eingeschaltetem Schaltgerät 1 ist somit lediglich der Hauptkontakt 2 geschlossen. Abweichend von dieser Ausführungsform kann der Hilfskontakt 5 auch bei geschlossenem Hauptkontakt 2 ebenfalls geschlossen bleiben und erst beim Ausschaltvorgang, vor dem Hauptkontakt 2, d.h. diesem vorauseilend, öffnen.FIG la shows the switching device 1 in the switched-off state. The auxiliary contact bridge 6 is in the first position. When switching device 1 is switched on by moving contact bridge carrier 8, in the illustration below, auxiliary contact 5 (FIG. 1b) closes first. In the further course of the actuation of the contact bridge carrier 8, the auxiliary contact bridge 6 temporarily assumes an unstable intermediate position. The auxiliary contact 5 remains closed. When the auxiliary contact 5 is closed, the main contact 2 now also closes (FIG. 1c). If the contact bridge support 8 is displaced further towards the switch-on position with compression of the spring 9 (FIG. 1d), also as a pressure draws, the auxiliary contact bridge 6, which is mounted non-displaceably at the suspension point 10 relative to the contact bridge carrier 8, snaps, ie assumes its second stable position. In this second stable position of the auxiliary contact bridge 6, the auxiliary contact 5 is always open in the exemplary embodiment shown, regardless of the position of the contact bridge carrier 8. When switching device 1 is switched on, only main contact 2 is thus closed. Deviating from this embodiment, the auxiliary contact 5 can also remain closed even when the main contact 2 is closed and only open during the switch-off process, before the main contact 2, ie in advance.

Anhand der FIG 2a bis 2d wird im Folgenden der Ausschaltvor- gang des Schaltgerätes 1 erläutert. Der Zustand des Schaltgerätes nach FIG 2a entspricht dem Zustand nach FIG ld. Wird der Kontaktbrückenträger 8 in Richtung der Ausschaltstellung, in der Darstellung nach oben, verschoben, so öffnet zunächst der Hilfskontakt 5, sofern dieser nicht - wie im Ausführungs- beispiel - bereits geöffnet war, und anschließend der Hauptkontakt 2 (FIG 2c) . Die Hilfskontaktbrucke 6 schlägt während des Öffnens des Hauptkontakts 2 am Anschlag 11 an und schnappt, ausgelöst durch die Öffnungsbewegung des Kontaktbrückenträgers 8 wieder in den ersten stabilen Zustand um (FIG 2d) . Die Hilfskontaktbrucke 6 ist dabei jedoch bereits so weit von den Hilfsfestkontakten 7 abgehoben, dass der Hilfskontakt 5 nicht mehr schließt. Der Hilfskontakt 5 bleibt somit im Ausführungsbeispiel während des gesamten Ausschaltvorgangs geöffnet. Die Schaltstellung nach FIG 2d entspricht der Schaltstellung nach FIG la.The switch-off process of the switching device 1 is explained below with reference to FIGS. 2a to 2d. The state of the switching device according to FIG 2a corresponds to the state of FIG ld. If the contact bridge carrier 8 is moved in the direction of the switch-off position, upward in the illustration, the auxiliary contact 5 first opens, provided that it was not already open, as in the exemplary embodiment, and then the main contact 2 (FIG. 2c). The auxiliary contact bridge 6 strikes the stop 11 during the opening of the main contact 2 and snaps, triggered by the opening movement of the contact bridge carrier 8, back into the first stable state (FIG. 2d). However, the auxiliary contact bridge 6 has already been lifted so far from the auxiliary fixed contacts 7 that the auxiliary contact 5 no longer closes. The auxiliary contact 5 thus remains open during the entire switch-off process in the exemplary embodiment. The switching position according to FIG 2d corresponds to the switching position according to FIG la.

Die FIG 3a bis 3d und 4a bis 4d zeigen ein Schaltgerät 1 in einer alternativen Bauform, welches sich von dem Schaltgerät nach den FIG la bis 2d hinsichtlich der Gestaltung des Hilfs- kontaktes 5 unterscheidet. Beim Schaltgerät nach den FIG 3a bis 4d ist die Hilfskontaktbrucke 6 starr, während die Hilfs- festkontakte 7 federnd ausgebildet sind und zwei stabile Stellungen einnehmen können. Die Hilfsfestkontakte 7 sind dabei einseitig im nicht dargestellten Gehäuse des Schaltgerätes 1 eingespannt. Aus den FIG 3a bis 3d ist der Einschaltvorgang des Schaltgerätes 1 ersichtlich. Die Hilfsfestkon- takte 7 sind in deren erster stabiler Stellung (FIG 3a) etwas auf die in der Darstellung oberhalb dieser angeordnete Hilfskontaktbrucke 6, welche starr und gerade ausgebildet ist, zugebogen. Der Übergang zur zweiten stabilen Stellung der Hilfsfestkontakte 7 (FIG 3d) vollzieht sich analog dem Schaltvorgang nach den FIG la bis ld. Befindet sich der Kontaktbrückenträger 8 in der geschlossenen Endposition (FIG 3d) , so ist der Hilfskontakt 5 im dargestellten Ausführungsbeispiel geöffnet. Alternativ könnte der Hilfskontakt 5 jedoch auch geschlossen bleiben.FIGS. 3a to 3d and 4a to 4d show a switching device 1 in an alternative design, which differs from the switching device according to FIGS. 1a to 2d with regard to the design of the auxiliary contact 5. In the switching device according to FIGS. 3a to 4d, the auxiliary contact bridge 6 is rigid, while the auxiliary fixed contacts 7 are resilient and two stable ones Can take positions. The auxiliary fixed contacts 7 are clamped on one side in the housing of the switching device 1, not shown. The switch-on process of the switching device 1 can be seen from FIGS. 3a to 3d. In their first stable position (FIG. 3a), the auxiliary fixed contacts 7 are bent somewhat towards the auxiliary contact bridge 6, which is arranged rigidly and straight in the illustration above this. The transition to the second stable position of the auxiliary auxiliary contacts 7 (FIG. 3d) takes place analogously to the switching process according to FIGS. 1a to 1d. If the contact bridge carrier 8 is in the closed end position (FIG. 3d), the auxiliary contact 5 is open in the exemplary embodiment shown. Alternatively, the auxiliary contact 5 could also remain closed.

Die Schaltposition nach FIG 4a, welche den Beginn des Aus- schaltvorgangs kennzeichnet, entspricht der Schaltposition nach FIG 3d. Beim Ausschaltvorgang treten die Anschläge 11 in Funktion, welche in diesem Fall am Kontaktbrückenträger 8 an- gebracht sind. Mittels der Anschläge 11 werden die Hilfsfestkontakte 7 von deren zweiter stabiler Stellung, in der sie Richtung des Hauptkontaktes 2 ausgelenkt sind (FIG 4a) , in deren erste stabile Stellung überführt (FIG 4d) . Der Hilfskontakt 5 bleibt beim Ausschalten des Schaltgerätes 1, analog den FIG 2a bis 2d, geöffnet. Abweichend hiervon könnte einThe switching position according to FIG. 4a, which marks the beginning of the switch-off process, corresponds to the switching position according to FIG. 3d. When switching off, the stops 11 come into operation, which in this case are attached to the contact bridge support 8. By means of the stops 11, the auxiliary fixed contacts 7 are transferred from their second stable position, in which they are deflected in the direction of the main contact 2 (FIG. 4a), to their first stable position (FIG. 4d). The auxiliary contact 5 remains open when the switching device 1 is switched off, analogously to FIGS. 2a to 2d. Deviating from this could be a

Öffnen des Hilfskontaktes 5 auch erst während des Ausschaltvorgangs, in jedem Fall jedoch vor dem Öffnen des Hauptkontaktes 2, vorgesehen sein. Die Schaltstellung nach FIG 4d entspricht der Schaltstellung nach FIG 3a. Opening of the auxiliary contact 5 may also be provided only during the switch-off process, but in any case before the main contact 2 is opened. The switching position according to FIG. 4d corresponds to the switching position according to FIG. 3a.

Claims

Patentansprüche claims 1. Elektromechanisches Schaltgerät mit einem eine Anzahl Hauptfestkontakte (4) und eine bewegliche Hauptkontakt- brücke (3) umfassenden Hauptkontakt (2) , einem diesem beim Einschaltvorgang vorauseilenden eine Anzahl Hilfsfestkontak- te (7) und eine bewegliche Hilfskontaktbrucke (6) umfassenden Hilfskontakt (5) und einem zur Betätigung der Hauptkontaktbrücke (3) und der Hilfskontaktbrucke (6) vorgesehenen Kon- taktbrückenträger (8), wobei zumindest eines der Kontaktteile (3,4,6,7) federnd gelagert ist, d a dur ch g e k enn z e i chn e t , dass zwei stabile Stellungen der Hilfskontaktbrucke (6) relativ zum Kontaktbrückenträger (8) vorgesehen sind, wobei • beim Einschalten durch Betätigung des Kontaktbrückenträgers (8) die Hilfskontaktbrucke (6) in deren erster stabiler Stellung den dem Hauptkontakt (2) vorauseilenden Hilfskontakt (5) schließt, und • beim Ausschalten durch entgegengerichtete Betätigung des Kontaktbrückenträgers (8) der Hilfskontakt (5) mit in der zweiten stabilen Stellung befindlicher Hilfskontaktbrucke (6) dem Hauptkontakt (2) vorauseilend öffnet.1. Electromechanical switching device with a main contact (2) comprising a number of main fixed contacts (4) and a movable main contact bridge (3), a main contact (2) leading in advance of this when switching on, and an auxiliary contact comprising a number of auxiliary fixed contacts (7) and a movable auxiliary contact bridge (6) 5) and a contact bridge support (8) provided for actuating the main contact bridge (3) and the auxiliary contact bridge (6), at least one of the contact parts (3, 4, 6, 7) being resiliently mounted, as shown et that two stable positions of the auxiliary contact bridge (6) are provided relative to the contact bridge support (8), wherein • when switching on by actuating the contact bridge support (8), the auxiliary contact bridge (6) in its first stable position the auxiliary contact leading the main contact (2) ( 5) closes, and • when switching off by actuating the contact bridge support (8) in the opposite direction, the auxiliary contact (5) is also in the second In the stable position of the auxiliary contact bridge (6) leading to the main contact (2) opens. 2. Schaltgerät nach Anspruch 1, da du r ch g e k e nn - z e i chn e t , dass beim Einschaltvorgang die Hilfskontaktbrucke (6) mittels mechanischer Einwirkung der Hilfs- festkontakte (7) auf die Hilfskontaktbrucke (6) in deren zweite stabile Stellung überführbar ist.2. Switching device according to claim 1, since it is ensured that the auxiliary contact bridge (6) can be transferred to the auxiliary contact bridge (6) in its second stable position by mechanical action of the auxiliary fixed contacts (7) during the switching-on process. 3. Schaltgerät nach Anspruch 2, da dur ch ge kenn z e i chn e t , dass beim Einschaltvorgang mit dem durch die Betätigung des Kontaktbrückenträgers (8) ausgelösten Wechsel zwischen der ersten und der zweiten stabilen Stellung der Hilfskontaktbrucke (6) nach dem Schließen des Hauptkon- taktes (2) ein Öffnen des Hilfskontaktes (5) auslösbar ist. 3. Switching device according to claim 2, since it indicates the fact that during the switch-on process with the change between the first and the second stable position of the auxiliary contact bridge (6) triggered by the actuation of the contact bridge support (8) after the main contact has been closed. clock (2) opening of the auxiliary contact (5) can be triggered. 4. Schaltgerät nach einem der Ansprüche 1 bis 3, d a dur ch g e k e nn z e i chn e t , dass beim Ausschaltvorgang die Hilfskontaktbrucke (6) mittels mechanischer Einwirkung mindestens eines Anschlags (11) auf die Hilfs- kontaktbrücke (6) in deren erste stabile Stellung überführbar ist.4. Switching device according to one of claims 1 to 3, since dur ch geke nn zei chn et that when switching off the auxiliary contact bridge (6) by means of mechanical action of at least one stop (11) on the auxiliary contact bridge (6) in its first stable position is transferable. 5. Schaltgerät nach einem der Ansprüche 1 bis 4, dadur ch g e k e nn z e i chn e t , dass die Hilfskon- taktbrücke (6) als Schnappfeder ausgebildet ist.5. Switching device according to one of claims 1 to 4, so that the auxiliary contact bridge (6) is designed as a snap spring. 6. Elektromechanisches Schaltgerät mit einem eine Anzahl Hauptfestkontakte (4) und eine bewegliche Hauptkontaktbrücke (3) umfassenden Hauptkontakt (2), einem diesem beim Einschaltvorgang vorauseilenden eine Anzahl Hilfsfestkontak- te (7) und eine bewegliche Hilfskontaktbrucke (6) umfassenden Hilfskontakt (5) und einem zur Betätigung der Hauptkontaktbrücke (3) und der Hilfskontaktbrucke (6) vorgesehenen Kontaktbrückenträger (8), wobei zumindest eines der Kontaktteile (3,4,6,7) federnd gelagert ist, dadu r ch g e kenn z e i chn e t , dass zwei stabile Stellungen zumindest eines Hilfsfestkontaktes (7) vorgesehen sind, wobei6. Electromechanical switching device with a main contact (2) comprising a number of main fixed contacts (4) and a movable main contact bridge (3), a number of auxiliary fixed contacts (7) leading this during the switch-on process and an auxiliary contact (5) comprising a movable auxiliary contact bridge (6) and a contact bridge support (8) provided for actuating the main contact bridge (3) and the auxiliary contact bridge (6), at least one of the contact parts (3, 4, 6, 7) being resiliently mounted, so that two markings stable positions of at least one auxiliary fixed contact (7) are provided, wherein • beim Einschalten durch Betätigung des Kontaktbrückenträ- gers (8) die Hilfskontaktbrucke (6) den Hilfsfestkontakt• when switching on by actuating the contact bridge support (8) the auxiliary contact bridge (6) the auxiliary fixed contact (7) in dessen erster stabiler Stellung kontaktiert und dabei den Hilfskontakt (5) dem Hauptkontakt (2) vorauseilend schließt, und(7) contacted in its first stable position, thereby closing the auxiliary contact (5) in advance of the main contact (2), and • beim Ausschalten durch entgegengerichtete Betätigung des Kontaktbrückenträgers (8) der Hilfskontakt (5) mit in der zweiten stabilen Stellung befindlichem Hilfsfestkontakt (7) dem Hauptkontakt (2) vorauseilend öffnet.• When switched off by actuating the contact bridge support (8) in the opposite direction, the auxiliary contact (5) opens with the auxiliary fixed contact (7) in the second stable position in advance of the main contact (2). 7. Schaltgerät nach Anspruch 6, da du r ch g e k e nn- z e i chn e t , dass beim Einschaltvorgang der Hilfsfestkontakt (7) mittels mechanischer Einwirkung der Hilfskon- taktbrücke (6) auf den Hilfsfestkontakt (7) in dessen zweite stabile Stellung überführbar ist.7. Switching device according to claim 6, since you have identified that during the switching-on process the auxiliary fixed contact (7) by means of mechanical action of the auxiliary contact. tact bridge (6) can be transferred to the auxiliary fixed contact (7) in its second stable position. 8. Schaltgerät nach Anspruch 7, d a dur ch g e k e nn - z e i chn e t , dass beim Einschaltvorgang mit dem durch die Betätigung des Kontaktbrückenträgers (8) ausgelösten Wechsel zwischen der ersten und der zweiten stabilen Stellung des Hilfsfestkontaktes (7) nach dem Schließen des Hauptkontaktes (2) ein Öffnen des Hilfskontaktes (5) auslösbar ist.8. Switching device according to claim 7, since ch geke nn - zei chn et that when switching on with the switching between the first and the second stable position of the auxiliary fixed contact (7) triggered by the actuation of the contact bridge support (8) after the main contact has closed (2) opening of the auxiliary contact (5) can be triggered. 9. Schaltgerät nach einem der Ansprüche 6 bis 8, da dur ch g e ke nn z e i chn e t , dass beim Ausschaltvorgang der Hilfsfestkontakt (7) mittels mechanischer Einwirkung mindestens eines Anschlags (11) auf den Hilfsfestkontakt (7) in dessen erste stabile Stellung überführbar ist.9. Switching device according to one of claims 6 to 8, since dur ch ge ke nn zei chn et that the auxiliary fixed contact (7) by mechanical action of at least one stop (11) can be transferred to the auxiliary fixed contact (7) in its first stable position during the switching off process is. 10. Schaltgerät nach einem der Ansprüche 6 bis 9, d a du r ch g e ke nn z e i chne t , dass der Hilfs- festkontakt (7) als Schnappfeder ausgebildet ist.10. Switching device according to one of claims 6 to 9, so that the auxiliary fixed contact (7) is designed as a snap spring. 11. Schaltgerät nach einem der Ansprüche 6 bis 10, da du r ch g e kenn z e i chn e t , dass zwei Hilfs- festkontakte (7) zumindest annähernd symmetrisch zum Kontakt- brückenträger (8) angeordnet sind.11. Switching device according to one of claims 6 to 10, since you know that two auxiliary fixed contacts (7) are arranged at least approximately symmetrically to the contact bridge carrier (8). 12. Schaltgerät einem der Ansprüche 1 bis 11, d a du r ch g e k e nn z e i c hn e t , dass die Hauptkontaktbrücke (3) und die Hilfskontaktbrucke (6) zumindest annähernd paral- lel zueinander angeordnet sind.12. Switching device according to one of claims 1 to 11, so that the main contact bridge (3) and the auxiliary contact bridge (6) are arranged at least approximately parallel to one another. 13. Schaltgerät nach einem der Ansprüche 1 bis 12, da dur ch ge kenn z e i chne t , dass zumindest eine der Kontaktbrücken (3,6) zumindest annähernd senkrecht zum Kontaktbrückenträger (8) angeordnet ist. 13. Switching device according to one of claims 1 to 12, since the characteristic that at least one of the contact bridges (3, 6) is arranged at least approximately perpendicular to the contact bridge support (8). 14. Schaltgerät nach einem der Ansprüche 1 bis 13, da dur ch g e k e nn z e i chn e t , dass die Hilfskontaktbrucke (6) an einem relativ zum Kontaktbrückenträger (8) unverschieblichen Aufhängungspunkt (10) im Kontaktbrückenträger (8) gelagert ist. 14. Switching device according to one of claims 1 to 13, since by means of that the auxiliary contact bridge (6) is mounted on a suspension point (10) which is immovable relative to the contact bridge carrier (8) in the contact bridge carrier (8).
EP04719975A 2003-04-03 2004-03-12 Electromechanical switch Expired - Lifetime EP1618579B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10315243A DE10315243B3 (en) 2003-04-03 2003-04-03 Electromechanical switching system for relays, switches and pushbuttons has main contact bridge providing contact path between pairs of fixed contacts
PCT/EP2004/002618 WO2004088697A1 (en) 2003-04-03 2004-03-12 Electromechanical switch

Publications (2)

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EP1618579A1 true EP1618579A1 (en) 2006-01-25
EP1618579B1 EP1618579B1 (en) 2006-08-02

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US (1) US7098762B2 (en)
EP (1) EP1618579B1 (en)
CN (1) CN1701405A (en)
DE (2) DE10315243B3 (en)
WO (1) WO2004088697A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007013572B4 (en) * 2007-03-21 2009-06-18 Siemens Ag Contact system with a jumper
DE102007016147B4 (en) * 2007-04-02 2010-05-12 Moeller Gmbh contactor
DE102007034989B3 (en) * 2007-07-26 2009-03-12 Schaltbau Gmbh microswitch
DE102008057555B4 (en) * 2008-11-15 2010-08-12 Tyco Electronics Austria Gmbh Relay with flip-flop spring
DE102009052626A1 (en) * 2009-11-10 2011-05-12 Siemens Aktiengesellschaft Switching device for switching a capacitor
CN101794681B (en) * 2010-03-10 2012-09-05 宁波福特继电器有限公司 Contact group for controlling relay
DE102010032456B4 (en) * 2010-07-28 2012-11-29 Schaltbau Gmbh Electric contactor
DE102010041721A1 (en) * 2010-09-30 2012-04-05 Robert Bosch Gmbh Welding prevention at high current switch
CN103187188A (en) * 2011-12-27 2013-07-03 苏州万龙电气集团股份有限公司 PCB multi-contactor-group linkage contactor device
CN104078281A (en) * 2013-03-26 2014-10-01 刘爱民 Non-arcing direct current contactor
DE102013222495B4 (en) * 2013-11-06 2025-06-12 Robert Bosch Gmbh Contactor arrangement
US9570901B2 (en) 2014-02-17 2017-02-14 Eaton Corporation Electronic circuit and low voltage arc flash system including an electromagnetic trigger
MX2017011403A (en) 2015-03-24 2017-11-10 Eaton Corp Arc flash mitigation switch for quenching external arc faults in low voltage switchgear.
CN107533926B (en) * 2015-04-24 2019-03-29 Abb瑞士股份有限公司 Bypass switch, method of providing a conductive path, and power system
DE102015119352B4 (en) * 2015-11-10 2018-06-07 Lisa Dräxlmaier GmbH ELECTROMECHANIC PROTECTION SWITCH
CN105914107B (en) * 2016-06-22 2017-11-28 沈阳二一三控制电器制造有限公司 A kind of contactor for connecting capacitive element
US10340640B2 (en) * 2017-05-04 2019-07-02 Schneider Electric USA, Inc. System and method for determining the current condition of power contacts

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640755A (en) * 1948-06-12 1950-07-26 Rotax Ltd Improvements relating to electric switch contact mechanisms
BE505847A (en) * 1950-09-16
DE1254737B (en) * 1962-05-08 1967-11-23 Danfoss As Electromagnetic contactor in which webs engage in grooves between adjacent contacts
DE1901965B2 (en) 1969-01-16 1972-05-18 Heddernheimer Metallwarenfabrik Ag, Werk Fluorn, 7239 Fluorn SWITCHING CONTACT FOR RELAYS, SWITCHES, KEYS OR THE LIKE.
DE2407057C3 (en) * 1974-02-14 1979-04-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electromagnetic switching device
DE3105117C2 (en) * 1981-02-12 1985-10-17 Siemens AG, 1000 Berlin und 8000 München Electromagnetic switching device
FR2607319B1 (en) * 1986-11-25 1989-03-03 Mang Ets Gerard REMOTE SWITCH HAVING AN AUXILIARY INVERTER ON ITS CONTROL CIRCUIT
DE3743244A1 (en) * 1987-12-19 1989-06-29 Asea Brown Boveri SWITCHING DEVICE ARRANGEMENT FOR SWITCHING ON AND OFF OF CAPACITORS
FR2667439B1 (en) * 1990-09-27 1992-11-27 Telemecanique Electrique SWITCHING APPARATUS FOR SUPPLYING CAPACITIVE LOADS.
DE19729595C1 (en) * 1997-07-10 1998-10-22 Siemens Ag Capacitor switching contactor arrangement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004088697A1 *

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DE10315243B3 (en) 2004-08-26
US20050219020A1 (en) 2005-10-06
CN1701405A (en) 2005-11-23
US7098762B2 (en) 2006-08-29
EP1618579B1 (en) 2006-08-02
WO2004088697A1 (en) 2004-10-14
DE502004001113D1 (en) 2006-09-14

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