EP1547112B1 - Electromagnetic switching device - Google Patents

Electromagnetic switching device Download PDF

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Publication number
EP1547112B1
EP1547112B1 EP03798858A EP03798858A EP1547112B1 EP 1547112 B1 EP1547112 B1 EP 1547112B1 EP 03798858 A EP03798858 A EP 03798858A EP 03798858 A EP03798858 A EP 03798858A EP 1547112 B1 EP1547112 B1 EP 1547112B1
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EP
European Patent Office
Prior art keywords
contact
switching device
appliance
additional
link support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03798858A
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German (de)
French (fr)
Other versions
EP1547112A1 (en
Inventor
Karl-Hans BÄRNKLAU
Johann Drexler
Peter Hartinger
Gerhard WÖSSNER
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
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Filing date
Publication date
Priority claimed from DE20220482U external-priority patent/DE20220482U1/en
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1547112A1 publication Critical patent/EP1547112A1/en
Application granted granted Critical
Publication of EP1547112B1 publication Critical patent/EP1547112B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H01H2050/328—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection with manual locking means having three positions, e.g. on-off-automatic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock

Definitions

  • main switches or switching devices with isolating properties are required.
  • these must reliably signal the disconnection of the system from the supply either by means of a visible isolating distance or by a display which reliably indicates the switching state of the device. Above all, they must allow a barrier that prevents accidental switching on safely. In addition, an increased dielectric strength must be ensured via the switching point. Also, predetermined leakage currents must not be exceeded.
  • IEC 60947-2 and IEC 60947-3 are described, for example, in IEC 60947-2 and IEC 60947-3. These standards are implemented in electrical equipment such as disconnectors, load disconnectors, fuse disconnectors and circuit breakers with disconnecting function and similar devices.
  • Electromagnetic switching devices according to the above-mentioned prior art meet these requirements.
  • the US-A-5,844,186 describes an arrangement with which a conventional contactor can be used as a circuit breaker.
  • the object of the present invention is to provide a further generic electromagnetic switching device.
  • the additional device is adjacent to the base unit on a side of the device, which is perpendicular to a direction of displacement of the contact bridge carrier.
  • the switching device is structurally particularly simple.
  • the locking element receptacle can alternatively be open on both sides or only on one side.
  • the locking element is held captive in the auxiliary device, no separate element is required to block the contact.
  • the locking element to the attachment in particular to a possible locking element, be adapted. Tolerances are therefore previously known or can be minimized.
  • auxiliary device has an additional switch which can be looped into a circuit via which the electromagnetic drive device can be acted upon by the starting current, a power supply of the electromagnetic drive device to the switching device can be interrupted,
  • auxiliary switch When the auxiliary switch is arranged and configured to open when mechanically blocking the contact it can not happen that accidentally opening the coil circuit is omitted.
  • connection between additional device and basic device can alternatively be solvable or insoluble. At least when mechanically blocked in the disconnected position contact the accessory should be inextricably linked to the basic unit.
  • connection between the basic device and the additional device is particularly easy if the auxiliary device is locked to the basic device.
  • an auxiliary switch housing is connectable to the switching device, in which an auxiliary switch is arranged, which can be actuated by the contact bridge carrier together with the contact, the switching device is even more flexible.
  • the auxiliary switch is connected to the contact bridge carrier preferably without play. Alternatively, the connection may be direct or indirect.
  • a basic unit 1 of an electromagnetic switching device is exemplified as a contactor.
  • the contactor has, among other things, an electromagnetic drive device 2, an armature 3, a contact bridge carrier 4 and, as a rule, several electrical contacts 5.
  • an electromagnetic drive device 2 an armature 3
  • a contact bridge carrier 4 for the sake of clarity, only one contact 5 is shown in FIGS. 1 and 2.
  • Each contact 5 consists in the rule of two fixed contact points 5 'and a movable contact bridge 5 ".
  • the electromagnetic drive device 2 has a coil 2 'and a coil core 2 "The coil 2' can be acted upon by a drive unit 6 with a starting current I.
  • the armature 3 is attracted and thereby the contact bridge carrier 4 and with it the contact bridge 5 "transferred to a bridging position, in which the contact 5 is closed. This state is shown in FIG.
  • the contact bridge carrier 4 and with it the contact bridge 5" are transferred by means of a return spring in a release position in which the contact 5 is opened. This position is shown in FIG. The return spring is not shown for clarity sake.
  • the contact bridge carrier 4 is moved when transferring from the disconnected position to the bridging position and vice versa in a direction of displacement x.
  • an additional device 7 adjoins the basic device 1.
  • the additional device 7 adjoins a device side to the base unit 1, which is perpendicular to the direction x.
  • the additional device 7 is also part of the electromagnetic switching device. It is connected to the basic unit 1, z. B, locked.
  • the attachment 7 has an extension 8 for the contact bridge carrier 4.
  • the extension 8 is connected to the contact bridge carrier 4 - preferably free of play - so that the extension 8 is forcibly guided by the contact bridge carrier 4.
  • the attachment 7 has a continuous, that is open on both sides, Arretierelementam 9, the extension 8 a corresponding recess 10.
  • a locking element 11 - here z. B. the bracket 11 of a padlock 12 - are manually passed through the Arretierelementam 9 therethrough.
  • a shut-off element 13 here the closing element 13 of the padlock 12
  • the locking element 11 is in the disconnected position of the contact bridge carrier 4 is closed off with the auxiliary device 7 (or the switching device) connected.
  • the locking element 11 is in the Arretierelementam 9
  • the extension 8 and with it also the contact bridge carrier 4 and the contact 5 are mechanically blocked in the release position.
  • These elements 4, 5, 8 thus remain in the disconnected position even when the electromechanical drive device 2 is acted upon by the attraction current I.
  • the insertion of the locking element 11 in the Arretierelementability 9 can be made apparent in fully assembled switching device.
  • connection of the auxiliary device 7 with the base unit 1 is detachable. Preferably, however, it is insoluble, at least when the contact 5 is mechanically blocked in the disconnected position. In most cases, it is even advantageous if the additional device 7 is permanently connected permanently to the basic device 1.
  • the switching device has an additional switch 14, which is arranged in the additional device 7.
  • the additional switch 14 is looped according to the Figures 1 and 2 in a circuit through which the electromagnetic drive device 2 with the attraction current I can be acted upon. It is also apparent arranged and designed so that it interrupts the circuit during insertion of the locking element 11 in the Arretierelementaid 9, ie the mechanical blocking of the contact 5. An accidental switching on the electromagnetic drive device 2 with blocked contact bridge carrier 4 is thus not possible. Any possible damage due to a long-lasting high current load of the coil 2 'are thus avoided.
  • FIGS. 3 and 4 essentially correspond to the embodiment according to FIGS. 1 and 2.
  • an auxiliary switch housing 15 is placed on the auxiliary device 7 on a side opposite the basic device 1 and connected to the auxiliary device 7.
  • the auxiliary switch housing 15 may be latched to the attachment 7, for example.
  • an auxiliary switch 16 is arranged in the auxiliary switch housing 15.
  • the auxiliary switch 16 is actuated by the contact bridge carrier 4 together with the contact 5.
  • the auxiliary switch 16 Because of the distribution of the switching device in the base unit 1 and the auxiliary device 7, the auxiliary switch 16 from the contact bridge carrier 4 only via the extension 8 and thus indirectly actuated. With a corresponding one-piece design of the switching device but also a direct operation would be possible. In any case, the auxiliary switch 16 but should be operable from the contact bridge carrier 4 without play.
  • the locking element receptacle 9 is only open on one side. Furthermore, in the embodiment according to FIG. 4, the locking element 11 is permanently connected to the auxiliary device 7. For this purpose, the locking element 11 and the Arretierelementability 9 cooperating holding and locking elements 17, 18, by means of which the locking element 11 is held captive in the auxiliary device 7. According to FIG 4 corresponds to one of the holding and locking elements 17, 18 an actuator for the additional switch 14. The actuator for the additional switch 14 but could also be a separate element.
  • the electromagnetic switching device can thus be easily extended by separator properties.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

An electromagnetic switching device (1) comprises an electromagnetic drive device (2) and at least one electrical contact (5) that, when a starting current (I) is applied to the drive device (2), can be transferred by the drive device from a disconnect position (contact (5) opened) into a bridging position (contact (5) closed). When the switching device is fully installed, the contact (5) can be blocked in the disconnect position and can be mechanically blocked in the disconnect position by an arresting element (11) that can be connected to the switching device. As a result, the contact (5) remains in the disconnect position even when the starting current (I) is applied to the drive device (2).

Description

Die vorliegende Erfindung betrifft ein elektromagnetisches Schaltgerät, insbesondere ein Schütz, mit einer elektromagnetischen Antriebsvorrichtung und mindestens einem elektrischen Kontakt,

  • wobei der Kontakt bei Beaufschlagen der elektromagnetischen Antriebsvorrichtung mit einem Anzugsstrom von der elektromagnetischen Antriebsvorrichtung mittels eines Kontaktbrückenträgers von einer Trennstellung in eine Überbrückungsstellung überführbar ist,
  • wobei der Kontakt in der Überbrückungsstellung geschlossen und in der Trennstellung geöffnet ist.
The present invention relates to an electromagnetic switching device, in particular a contactor, with an electromagnetic drive device and at least one electrical contact,
  • wherein the contact can be converted from a disconnected position into a bridging position when the electromagnetic drive device is acted upon by a starting current from the electromagnetic drive device by means of a contact bridge carrier,
  • wherein the contact is closed in the bridging position and open in the disconnected position.

Derartige Schaltgeräte sind allgemein bekannt. Lediglich beispielhaft wird auf die US-A-3,745,492 und die WO 99/56295 A1 verwiesen.Such switching devices are well known. Only by way of example is on the US-A-3,745,492 and the WO 99/56295 A1 directed.

Zur Sicherstellung der Spannungsfreiheit von elektrischen Anlagen bei Arbeiten an bzw. in diesen Anlagen sind Hauptschalter bzw. Schaltgeräte mit Trennereigenschaften vorgeschrieben. Diese müssen zum einen entweder durch eine sichtbare Trennstrecke oder durch eine Anzeige, die den Schaltzustand des Geräts sicher anzeigt, die Abtrennung der Anlage von der Versorgung sicher signalisieren. Vor allem aber müssen sie eine Absperrung ermöglichen, die ein versehentliches Einschalten sicher verhindert. Außerdem muss eine erhöhte Spannungsfestigkeit über die Schaltstelle sicher gestellt sein. Auch dürfen vorbestimmte Kriechströme nicht überschritten werden.To ensure the absence of voltage from electrical systems when working on or in these systems, main switches or switching devices with isolating properties are required. On the one hand, these must reliably signal the disconnection of the system from the supply either by means of a visible isolating distance or by a display which reliably indicates the switching state of the device. Above all, they must allow a barrier that prevents accidental switching on safely. In addition, an increased dielectric strength must be ensured via the switching point. Also, predetermined leakage currents must not be exceeded.

Geräte dieser Art sind beispielsweise in der IEC 60947-2 und der IEC 60947-3 beschrieben. Realisiert sind diese Normen in elektrischen Geräten wie beispielsweise Trennern, Lasttrennern, Sicherungslasttrennern und Leistungsschaltern mit Trennfunktion und ähnlichen Geräten.Devices of this type are described, for example, in IEC 60947-2 and IEC 60947-3. These standards are implemented in electrical equipment such as disconnectors, load disconnectors, fuse disconnectors and circuit breakers with disconnecting function and similar devices.

Elektromagnetische Schaltgeräte gemäß dem oben genannten Stand der Technik erfüllen diese Anforderungen.Electromagnetic switching devices according to the above-mentioned prior art meet these requirements.

Die US-A-5,844,186 beschreibt eine Anordnung, mit der ein konventionelles Schütz als Schutzschalter benutzt werden kann.The US-A-5,844,186 describes an arrangement with which a conventional contactor can be used as a circuit breaker.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein weiteres gattungsgemäßes elektromagnetisches Schaltgerät zu schaffen.The object of the present invention is to provide a further generic electromagnetic switching device.

Die Aufgabe wird durch Merkmale des Anspruch 1 gelöst, so dass das Zusatzgerät an das Grundgerät an einer Geräteseite angrenzt, die senkrecht zu einer Verschieberichtung des Kontaktbrückenträgers verläuft.The object is solved by features of claim 1, so that the additional device is adjacent to the base unit on a side of the device, which is perpendicular to a direction of displacement of the contact bridge carrier.

Wenn der Kontakt durch Einführen des Arretierelements in eine Arretierelementaufnahme blockierbar ist, ist das Schaltgerät konstruktiv besonders einfach ausgebildet. Die Arretierelementaufnahme kann dabei alternativ beidseitig oder nur einseitig offen sein.If the contact can be blocked by inserting the locking element into a locking element receptacle, the switching device is structurally particularly simple. The locking element receptacle can alternatively be open on both sides or only on one side.

Wenn das Arretierelement unverlierbar im Zusatzgerät gehalten ist, ist zum Blockieren des Kontakts kein separates Element erforderlich. Darüber hinaus kann in diesem Fall das Arretierelement an das Zusatzgerät, insbesondere an eine etwaige Arretierelementaufnahme, angepasst sein. Toleranzen sind daher vorbekannt bzw. können minimiert werden.If the locking element is held captive in the auxiliary device, no separate element is required to block the contact. In addition, in this case, the locking element to the attachment, in particular to a possible locking element, be adapted. Tolerances are therefore previously known or can be minimized.

Wenn das Zusatzgerät einen Zusatzschalter aufweist, der in einen Stromkreis einschleifbar ist, über den die elektromagnetische Antriebsvorrichtung mit dem Anzugsstrom beaufschlagbar ist, ist eine Energieversorgung der elektromagnetischen Antriebsvorrichtung am Schaltgerät unterbrechbar,If the auxiliary device has an additional switch which can be looped into a circuit via which the electromagnetic drive device can be acted upon by the starting current, a power supply of the electromagnetic drive device to the switching device can be interrupted,

Wenn der Zusatzschalter derart angeordnet und ausgebildet ist, dass er beim mechanischen Blockieren des Kontakts geöffnet wird, kann es nicht geschehen, dass versehentlich ein Öffnen des Spulenstromkreises unterbleibt.When the auxiliary switch is arranged and configured to open when mechanically blocking the contact it can not happen that accidentally opening the coil circuit is omitted.

Die Verbindung zwischen Zusatzgerät und Grundgerät kann alternativ lösbar oder unlösbar sein. Zumindest bei in der Trennstellung mechanisch blockiertem Kontakt sollte das Zusatzgerät aber unlösbar mit dem Grundgerät verbunden sein.The connection between additional device and basic device can alternatively be solvable or insoluble. At least when mechanically blocked in the disconnected position contact the accessory should be inextricably linked to the basic unit.

Die Verbindung zwischen Grundgerät und Zusatzgerät gestaltet sich besonders einfach, wenn das Zusatzgerät mit dem Grundgerät verrastet ist.The connection between the basic device and the additional device is particularly easy if the auxiliary device is locked to the basic device.

Wenn mit dem Schaltgerät ein Hilfsschaltergehäuse verbindbar ist, in dem ein Hilfsschalter angeordnet ist, der vom Kontaktbrückenträger zusammen mit dem Kontakt betätigbar ist, ist das Schaltgerät noch flexibler einsetzbar. Der Hilfsschalter ist dabei mit dem Kontaktbrückenträger vorzugsweise spielfrei verbunden. Die Verbindung kann aber alternativ direkt oder indirekt sein.If an auxiliary switch housing is connectable to the switching device, in which an auxiliary switch is arranged, which can be actuated by the contact bridge carrier together with the contact, the switching device is even more flexible. The auxiliary switch is connected to the contact bridge carrier preferably without play. Alternatively, the connection may be direct or indirect.

Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen in Verbindung mit den Zeichnungen. Dabei zeigen in Prinzipdarstellung

FIG 1
einen Schnitt durch ein elektromagnetisches Schaltgerät,
FIG 2 und 3
Abwandlungen von FIG 1 und
FIG 4
einen Schnitt durch ein weiteres elektromagnetisches Schaltgerät.
Further advantages and details will become apparent from the following description of exemplary embodiments in conjunction with the drawings. This show in a schematic representation
FIG. 1
a section through an electromagnetic switching device,
FIGS. 2 and 3
Modifications of FIG 1 and
FIG. 4
a section through another electromagnetic switching device.

Gemäß den FIG 1 und 2 ist ein Grundgerät 1 eines elektromagnetischen Schaltgeräts beispielhaft als Schütz ausgebildet. Das Schütz weist unter anderem eine elektromagnetische Antriebsvorrichtung 2, einen Anker 3, einen Kontaktbrückenträger 4 und - in der Regel mehrere - elektrische Kontakte 5 auf. Der Übersichtlichkeit halber ist dabei in den FIG 1 und 2 nur ein Kontakt 5 dargestellt. Jeder Kontakt 5 besteht in der Regel aus zwei feststehenden Kontaktstellen 5' und einer beweglichen Kontaktbrücke 5".According to Figures 1 and 2, a basic unit 1 of an electromagnetic switching device is exemplified as a contactor. The contactor has, among other things, an electromagnetic drive device 2, an armature 3, a contact bridge carrier 4 and, as a rule, several electrical contacts 5. For the sake of clarity, only one contact 5 is shown in FIGS. 1 and 2. Each contact 5 consists in the rule of two fixed contact points 5 'and a movable contact bridge 5 ".

Die elektromagnetische Antriebsvorrichtung 2 weist eine Spule 2' und einen Spulenkern 2" auf. Die Spule 2' ist über eine Ansteuereinheit 6 mit einem Anzugsstrom I beaufschlagbar. In diesem Fall wird der Anker 3 angezogen und dadurch der Kontaktbrückenträger 4 und mit ihm die Kontaktbrücke 5" in eine Überbrückungsstellung überführt, in welcher der Kontakt 5 geschlossen ist. Dieser Zustand ist in FIG 1 dargestellt.The electromagnetic drive device 2 has a coil 2 'and a coil core 2 "The coil 2' can be acted upon by a drive unit 6 with a starting current I. In this case, the armature 3 is attracted and thereby the contact bridge carrier 4 and with it the contact bridge 5 "transferred to a bridging position, in which the contact 5 is closed. This state is shown in FIG.

Wenn die Spule 2" hingegen nicht mit dem Anzugsstrom I beaufschlagt wird, werden der Kontaktbrückenträger 4 und mit ihm die Kontaktbrücke 5" mittels einer Rückstellfeder in eine Trennstellung überführt, in welcher der Kontakt 5 geöffnet ist. Diese Stellung ist in FIG 2 dargestellt. Die Rückstellfeder ist dabei der Übersichtlichkeit halber nicht mit dargestellt.If the coil 2 ", however, is not acted upon by the attraction current I, the contact bridge carrier 4 and with it the contact bridge 5" are transferred by means of a return spring in a release position in which the contact 5 is opened. This position is shown in FIG. The return spring is not shown for clarity sake.

Der Kontaktbrückenträger 4 wird beim Überführen von der Trennstellung in die Überbrückungsstellung und umgekehrt in einer Verschieberichtung x verschoben. Gemäß den FIG 1 und 2 grenzt an das Grundgerät 1 ein Zusatzgerät 7 an. Das Zusatzgerät 7 grenzt dabei an einer Geräteseite an das Grundgerät 1 an, die senkrecht zur Verschieberichtung x verläuft.The contact bridge carrier 4 is moved when transferring from the disconnected position to the bridging position and vice versa in a direction of displacement x. According to FIGS. 1 and 2, an additional device 7 adjoins the basic device 1. The additional device 7 adjoins a device side to the base unit 1, which is perpendicular to the direction x.

Das Zusatzgerät 7 ist ebenfalls Bestandteil des elektromagnetischen Schaltgeräts. Es ist mit dem Grundgerät 1 verbunden, z. B, verrastet. Das Zusatzgerät 7 weist eine Verlängerung 8 für den Kontaktbrückenträger 4 auf. Die Verlängerung 8 ist mit dem Kontaktbrückenträger 4 - vorzugsweise spielfrei - verbunden, so dass die Verlängerung 8 vom Kontaktbrückenträger 4 zwangsgeführt wird.The additional device 7 is also part of the electromagnetic switching device. It is connected to the basic unit 1, z. B, locked. The attachment 7 has an extension 8 for the contact bridge carrier 4. The extension 8 is connected to the contact bridge carrier 4 - preferably free of play - so that the extension 8 is forcibly guided by the contact bridge carrier 4.

Das Zusatzgerät 7 weist eine durchgehende, also beidseitig offene, Arretierelementaufnahme 9 auf, die Verlängerung 8 eine korrespondierende Ausnehmung 10. Wenn sich der Kontaktbrückenträger 4 - und mit ihm der Kontakt 5 - in der Trennstellung befindet, kann daher gemäß FIG 2 ein Arretierelement 11 - hier z. B. der Bügel 11 eines Vorhängeschlosses 12 - manuell durch die Arretierelementaufnahme 9 hindurch geführt werden. Durch Betätigen eines Absperrelements 13, hier des Schließelements 13 des Vorhängeschlosses 12, ist somit das Arretierelement 11 in der Trennstellung des Kontaktbrückenträgers 4 abgesperrt mit dem Zusatzgerät 7 (bzw. dem Schaltgerät) verbunden. Wenn sich das Arretierelement 11 in der Arretierelementaufnahme 9 befindet, sind somit die Verlängerung 8 und mit ihr auch der Kontaktbrückenträger 4 und der Kontakt 5 in der Trennstellung mechanisch blockiert. Diese Elemente 4, 5, 8 verharren somit auch dann in der Trennstellung, wenn die elektromechanische Antriebsvorrichtung 2 mit dem Anzugsstrom I beaufschlagt wird. Das Einführen des Arretierelements 11 in die Arretierelementaufnahme 9 kann dabei ersichtlich bei vollständig montiertem Schaltgerät erfolgen.The attachment 7 has a continuous, that is open on both sides, Arretierelementaufnahme 9, the extension 8 a corresponding recess 10. When the contact bridge carrier 4 - and with him the contact 5 - in the release position Therefore, according to FIG 2, a locking element 11 - here z. B. the bracket 11 of a padlock 12 - are manually passed through the Arretierelementaufnahme 9 therethrough. By pressing a shut-off element 13, here the closing element 13 of the padlock 12, thus the locking element 11 is in the disconnected position of the contact bridge carrier 4 is closed off with the auxiliary device 7 (or the switching device) connected. When the locking element 11 is in the Arretierelementaufnahme 9, thus the extension 8 and with it also the contact bridge carrier 4 and the contact 5 are mechanically blocked in the release position. These elements 4, 5, 8 thus remain in the disconnected position even when the electromechanical drive device 2 is acted upon by the attraction current I. The insertion of the locking element 11 in the Arretierelementaufnahme 9 can be made apparent in fully assembled switching device.

Es ist möglich, dass die Verbindung des Zusatzgeräts 7 mit dem Grundgerät 1 lösbar ist. Vorzugsweise aber ist sie unlösbar, zumindest dann, wenn der Kontakt 5 in der Trennstellung mechanisch blockiert ist. Meist ist es sogar von Vorteil, wenn das Zusatzgerät 7 mit dem Grundgerät 1 dauerhaft unlösbar verbunden ist.It is possible that the connection of the auxiliary device 7 with the base unit 1 is detachable. Preferably, however, it is insoluble, at least when the contact 5 is mechanically blocked in the disconnected position. In most cases, it is even advantageous if the additional device 7 is permanently connected permanently to the basic device 1.

Gemäß den FIG 1 und 2 weist das Schaltgerät einen Zusatzschalter 14 auf, der im Zusatzgerät 7 angeordnet ist. Der Zusatzschalter 14 ist gemäß den FIG 1 und 2 in einen Stromkreis eingeschleift, über den die elektromagnetische Antriebsvorrichtung 2 mit dem Anzugsstrom I beaufschlagbar ist. Er ist ferner ersichtlich derart angeordnet und ausgebildet, dass er den Stromkreis beim Einführen des Arretierelements 11 in die Arretierelementaufnahme 9, also beim mechanischen Blockieren des Kontakts 5, unterbricht. Ein versehentliches Einschalten der elektromagnetischen Antriebsvorrichtung 2 bei blockiertem Kontaktbrückenträger 4 ist somit nicht möglich. Etwaige mögliche Schäden durch eine zu lange andauernde hohe Strombelastung der Spule 2' werden somit vermieden.According to FIGS. 1 and 2, the switching device has an additional switch 14, which is arranged in the additional device 7. The additional switch 14 is looped according to the Figures 1 and 2 in a circuit through which the electromagnetic drive device 2 with the attraction current I can be acted upon. It is also apparent arranged and designed so that it interrupts the circuit during insertion of the locking element 11 in the Arretierelementaufnahme 9, ie the mechanical blocking of the contact 5. An accidental switching on the electromagnetic drive device 2 with blocked contact bridge carrier 4 is thus not possible. Any possible damage due to a long-lasting high current load of the coil 2 'are thus avoided.

Die Ausführungsformen gemäß den FIG 3 und 4 entsprechen im Wesentlichen der Ausführungsform gemäß den FIG 1 und 2. Gemäß FIG 3 ist auf das Zusatzgerät 7 an einer dem Grundgerät 1 gegenüberliegenden Seite aber ein Hilfsschaltergehäuse 15 aufgesetzt und mit dem Zusatzgerät 7 verbunden. Das Hilfsschaltergehäuse 15 kann mit dem Zusatzgerät 7 beispielsweise verrastet sein. Im Hilfsschaltergehäuse 15 ist ein Hilfsschalter 16 angeordnet. Der Hilfsschalter 16 wird vom Kontaktbrückenträger 4 zusammen mit dem Kontakt 5 betätigt.The embodiments according to FIGS. 3 and 4 essentially correspond to the embodiment according to FIGS. 1 and 2. According to FIG. 3, an auxiliary switch housing 15 is placed on the auxiliary device 7 on a side opposite the basic device 1 and connected to the auxiliary device 7. The auxiliary switch housing 15 may be latched to the attachment 7, for example. In the auxiliary switch housing 15, an auxiliary switch 16 is arranged. The auxiliary switch 16 is actuated by the contact bridge carrier 4 together with the contact 5.

Wegen der Aufteilung des Schaltgeräts in das Grundgerät 1 und das Zusatzgerät 7 ist der Hilfsschalter 16 vom Kontaktbrückenträger 4 nur über die verlängerung 8 und damit indirekt betätigbar. Bei entsprechender einteiliger Ausgestaltung des Schaltgeräts wäre aber auch eine direkte Betätigung möglich. In jedem Fall sollte der Hilfsschalter 16 aber vom Kontaktbrückenträger 4 spielfrei betätigbar sein.Because of the distribution of the switching device in the base unit 1 and the auxiliary device 7, the auxiliary switch 16 from the contact bridge carrier 4 only via the extension 8 and thus indirectly actuated. With a corresponding one-piece design of the switching device but also a direct operation would be possible. In any case, the auxiliary switch 16 but should be operable from the contact bridge carrier 4 without play.

Bei der Ausgestaltung gemäß FIG 4 ist - im Unterschied zu den FIG 1 und 3 - die Arretierelementaufnahme 9 nur einseitig offen. Ferner ist das Arretierelement 11 bei der Ausführungsform gemäß FIG 4 mit dem Zusatzgerät 7 permanent verbunden. Hierzu weisen das Arretierelement 11 und die Arretierelementaufnahme 9 zusammenwirkende Halte- und Rastelemente 17, 18 auf, mittels derer das Arretierelement 11 unverlierbar im Zusatzgerät 7 gehalten ist. Gemäß FIG 4 entspricht das eine der Halte- und Rastelemente 17, 18 einem Betätigungsorgan für den Zusatzschalter 14. Das Betätigungsorgan für den Zusatzschalter 14 könnte aber auch ein separates Element sein.In the embodiment according to FIG. 4, in contrast to FIGS. 1 and 3, the locking element receptacle 9 is only open on one side. Furthermore, in the embodiment according to FIG. 4, the locking element 11 is permanently connected to the auxiliary device 7. For this purpose, the locking element 11 and the Arretierelementaufnahme 9 cooperating holding and locking elements 17, 18, by means of which the locking element 11 is held captive in the auxiliary device 7. According to FIG 4 corresponds to one of the holding and locking elements 17, 18 an actuator for the additional switch 14. The actuator for the additional switch 14 but could also be a separate element.

Mittels der erfindungsgemäßen Ausgestaltung des elektromagnetischen Schaltgeräts kann somit das elektromagnetische Schaltgerät auf einfache Weise um Trennereigenschaften erweitert werden.By means of the embodiment of the electromagnetic switching device according to the invention, the electromagnetic switching device can thus be easily extended by separator properties.

Claims (12)

  1. Electromagnetic switching device, in particular a contactor, having an electromagnetic drive apparatus (2) and having at least one electrical contact (5), in which case:
    - the contact (5) can be moved by means of a contact link support (4) from a disconnected position to a bridging position by the electromagnetic drive apparatus (2) when a pull-in current (I) is applied to the electromagnetic drive apparatus (2),
    - the contact (5) is closed in the bridging position and being open in the disconnected position,
    - the electromagnetic switching device has a basic appliance (1) and an additional appliance (7) which is connected to the basic appliance (1),
    - the contact link support (4) and the contact (5) are arranged in the basic appliance (1),
    - the additional appliance (7) has an extension (8) which is connected to the contact link support (4) in such a way that the extension (8) is positively guided by the contact link support (4), and
    - the extension (8) can be mechanically blocked by means of a locking element (11) which can be connected to the additional appliance (7) and can be blocked in the disconnected position of the contact (5), such that the extension (8) and, with it, the contact link support (4) and the contact (5) as well is locked in the disconnected position even when the pull-in current (I) is applied to the electromagnetic drive apparatus,
    characterized in that
    the additional appliance (7) is adjacent to the basic appliance (1) on an appliance side which runs at right angles to a movement direction (x) of the contact link support (4).
  2. Switching device according to Claim 1, characterized in that the contact (5) can be blocked in a locking element holder (9) by insertion of the locking element (11).
  3. Switching device according to Claim 2, characterized in that the locking element holder (9) is open on both sides.
  4. Switching device according to Claim 2, characterized in that the locking element holder (9) is open on only one side.
  5. Switching device according to one of the above claims, characterized in that the locking element is held captive in the additional appliance (7).
  6. Switching device according to one of the above claims, characterized in that the additional appliance (7) has an additional switch (14) which can be connected in a circuit via which the pull-in current (I) can be applied to the electromagnetic drive apparatus (2).
  7. Switching device according to Claim 6, characterized in that the additional switch (14) is arranged and designed such that it is opened when the contact (5) is mechanically blocked.
  8. Switching device according to one of the above claims, characterized in that the additional appliance (7) is connected to the basic appliance (1) non-detachably at least when the contact (5) is mechanically blocked in the disconnected position.
  9. Switching device according to one of the above claims, characterized in that the additional appliance (7) is latched to the basic appliance (1).
  10. Switching device according to one of the above claims, characterized in that an auxiliary switch housing (15) can be connected to the switching device and has an auxiliary switch (16) arranged in it, which can be operated by the contact link support (4) together with the contact (5).
  11. Switching device according to Claim 10, characterized in that the auxiliary switch (16) can be operated - directly or indirectly - by the contact link support (4) without any play.
  12. Additional appliance for an electromagnetic switching device according to one of the above claims, characterized in that
    - the additional appliance (7) has an extension (8) which is connected to the contact link support (4) in such a way that the extension (8) is positively guided by the contact link support (4),
    - the extension (8) can be mechanically blocked by means of a locking element (11) which can be connected to the additional appliance (7) and can be blocked in the disconnected position of the contact (5), such that the extension (8) and, with it, the contact link support (4) and the contact (5) as well is locked in the disconnected position even when the pull-in current (I) is applied to the electromagnetic drive apparatus (2),
    - and in that the additional appliance (7) has a shape that is adjacent to an appliance side of the basic appliance (1) which runs at right angles to a movement direction (x) of the contact link support (4).
EP03798858A 2002-10-02 2003-08-27 Electromagnetic switching device Expired - Lifetime EP1547112B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20220482U DE20220482U1 (en) 2002-10-02 2002-10-02 Electromagnetic switching device used as load breaker or power switch with latch element allowing blocking of switching contact in contact open position
DE20220482U 2002-10-02
PCT/DE2003/002577 WO2004032170A1 (en) 2002-10-02 2003-08-27 Electromagnetic switching device

Publications (2)

Publication Number Publication Date
EP1547112A1 EP1547112A1 (en) 2005-06-29
EP1547112B1 true EP1547112B1 (en) 2007-06-20

Family

ID=32049719

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Application Number Title Priority Date Filing Date
EP03798858A Expired - Lifetime EP1547112B1 (en) 2002-10-02 2003-08-27 Electromagnetic switching device

Country Status (6)

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US (1) US7432789B2 (en)
EP (1) EP1547112B1 (en)
JP (1) JP4315906B2 (en)
CN (1) CN100342470C (en)
DE (1) DE50307529D1 (en)
WO (1) WO2004032170A1 (en)

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Publication number Priority date Publication date Assignee Title
RU2274918C2 (en) * 2004-06-22 2006-04-20 Андрей Юрьевич Богатырев Electromagnetic interlocking device for switching apparatuses
EP1908546A1 (en) * 2006-10-05 2008-04-09 Trumpf Laser- und Systemtechnik GmbH Diffuse laser beam reflector ; Room separation and working room with laser processing system with such a laser beam reflector
RU2557809C2 (en) * 2013-10-29 2015-07-27 Руслан Константинович Борисов Method to ensure electrical safety during routine switching at power facilities
WO2017092821A1 (en) * 2015-12-04 2017-06-08 Abb Schweiz Ag A disconnector device and arrangement for disconnecting a contactor
DE102020205389B3 (en) 2020-04-29 2021-08-12 Siemens Aktiengesellschaft Rocker arm for an electrical switch, blocking device with such a rocker arm and electrical switch with such a rocker arm or such a blocking device
JP7517623B2 (en) * 2022-06-22 2024-07-17 富士電機機器制御株式会社 Connection structure between electromagnetic contactor and auxiliary contact unit

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US3745492A (en) * 1971-11-17 1973-07-10 Westinghouse Electric Corp Electromagnetic contactor with safety latch device
DE3478167D1 (en) * 1984-12-18 1989-06-15 Square D Starkstrom Gmbh Motor protection switch
JP3266230B2 (en) 1995-01-24 2002-03-18 富士電機株式会社 Electromagnetic contactor
DE19547011C1 (en) * 1995-12-15 1997-01-09 Siemens Ag Switchgear
US5844186A (en) * 1996-08-22 1998-12-01 Allen Bradley Company, Llc Motor contractor with mechanical lock-out
SE519799C2 (en) * 1998-04-29 2003-04-08 Abb Ab Industrial relay and method
DE10013319C1 (en) * 2000-03-17 2001-10-11 Siemens Ag Electromagnetic switching device, in particular a contactor, with a contact bridge support lock
JP4333060B2 (en) * 2001-08-06 2009-09-16 富士電機機器制御株式会社 Protective switch

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Also Published As

Publication number Publication date
WO2004032170A1 (en) 2004-04-15
HK1081723A1 (en) 2006-05-19
DE50307529D1 (en) 2007-08-02
CN1701404A (en) 2005-11-23
JP2006501613A (en) 2006-01-12
JP4315906B2 (en) 2009-08-19
US7432789B2 (en) 2008-10-07
US20070139144A1 (en) 2007-06-21
EP1547112A1 (en) 2005-06-29
CN100342470C (en) 2007-10-10

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