EP0739021A2 - Electromagnetic switch apparatus, particularly a contactor - Google Patents

Electromagnetic switch apparatus, particularly a contactor Download PDF

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Publication number
EP0739021A2
EP0739021A2 EP96101421A EP96101421A EP0739021A2 EP 0739021 A2 EP0739021 A2 EP 0739021A2 EP 96101421 A EP96101421 A EP 96101421A EP 96101421 A EP96101421 A EP 96101421A EP 0739021 A2 EP0739021 A2 EP 0739021A2
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EP
European Patent Office
Prior art keywords
armature
contact bridge
bridge support
intermediate plate
switching device
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
EP96101421A
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German (de)
French (fr)
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EP0739021A3 (en
EP0739021B1 (en
Inventor
Hans Haas
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Rockwell Automation Switzerland GmbH
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Sprecher und Schuh AG
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Publication date
Application filed by Sprecher und Schuh AG filed Critical Sprecher und Schuh AG
Publication of EP0739021A2 publication Critical patent/EP0739021A2/en
Publication of EP0739021A3 publication Critical patent/EP0739021A3/en
Application granted granted Critical
Publication of EP0739021B1 publication Critical patent/EP0739021B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection

Definitions

  • the present invention relates to an electromagnetic switching device, in particular a contactor with an articulated connection between the armature and the contact bridge support, with an armature, with a contact bridge support which is displaceably guided in the housing of the switching device, and with a plug inserted in a bore of the armature which is transverse to the direction of movement, for connection to the contact bridge support provided coupling bolts, the armature and the contact bridge support being braced with a plurality of elastic elements arranged symmetrically about the axis of symmetry of the contact bridge support lying in the direction of movement of the anchor.
  • an electromagnetic switching device of the type mentioned is known.
  • this switching device an arrangement is provided for connecting the armature to the contact bridge support in an articulated manner on all sides. It has been assumed that a central, small-area support between the armature and the coupling bolt connected to the contact bridge support is required for a joint that is articulated on all sides. For this reason, the coupling pin is only in the middle of the hole at a central point on the anchor.
  • the armature and the contact bridge support are tensioned from one another by means of elastic elements which are arranged symmetrically about the axis of symmetry of the contact bridge support lying in the direction of movement of the armature.
  • the object of the present invention is to develop an electromagnetic switching device of the type mentioned in the introduction, in which the coupling bolt used for all-round connection of the armature to the contact bridge support and accommodated in the bore of the armature when receiving Shocks is exposed to a relatively small bending stress and can be installed largely independent of position, is composed of relatively few parts, has a long service life and is economically advantageous.
  • the object is achieved in that an arranged between the armature and the contact bridge support, which rests against rotation against the contact bridge support, rests against the elastic elements resiliently both on the two end regions of the coupling bolt and perpendicularly to the end regions of the armature a plurality of intermediate plates provided with guide parts of the housing which are in engagement is provided and that the coupling bolt rests in the armature at least in the two end regions of the bore and is in trailing connection with the contact bridge carrier at its two end regions.
  • the intermediate plate is easy to manufacture and economically advantageous. By using the intermediate plate, the assembly of the switchgear is particularly suitable for simple automatic assembly.
  • the coupling bolt rests in the armature at least in the two end regions of the bore, the bending stress of the coupling bolt is relatively low when impact is received, whereby a relatively long service life of the switching device can also be achieved.
  • the towing connection provided between the coupling bolt and the contact bridge carrier permits an articulated pivoting movement of the armature against the force of the elastic elements acting on the two end regions of the coupling bolt and perpendicularly to the end regions of the armature.
  • the intermediate plate also takes over the guiding of the contact bridge carrier and the armature in the housing of the switching device.
  • the proposed arrangement consists of relatively few parts and is economically advantageous.
  • the intermediate plate advantageously has at least one drive connection point for at least one auxiliary switching device that can be attached to the side of the switching device.
  • the intermediate plate is particularly suitable to be provided with an externally accessible drive connection point.
  • the elastic elements advantageously consist of resilient beams formed between the armature and the intermediate plate and between the coupling bolt and the intermediate plate and molded on the intermediate plate. This solution is remarkably advantageous because the intermediate plate with the elastic elements is formed in one piece. The simple assembly of the switching device that can be achieved in this way is obvious.
  • the intermediate plate can consist of a thermoplastic.
  • the good bending properties available for the formation of the resilient beams and for the good sliding properties of the thermoplastic synthetic material necessary for guiding the intermediate plate in the housing are advantageously used.
  • the contact bridge support can consist of a thermoset plastic.
  • the contact bridge support can be realized with a thermosetting plastic with sufficient mechanical strength for all switching devices and with sufficient dimensional stability.
  • FIG. 1 The schematic cross section of an electromagnetic switching device, more precisely a contactor, shows in FIG. 1 a housing 1, a lower housing part 2 and an upper housing part 3.
  • the housing 1 carries the fixed contact pieces 7.
  • the contact bridge support 6 lies non-rotatably on an intermediate plate 8 transversely to the direction of movement.
  • the intermediate plate 8 lies between the contact bridge support 6 and the armature 9 of the electromagnet.
  • the attachment of the contact bridge support 6 to the armature 9 by means of a coupling bolt 10 will be explained later.
  • the core 12 of the electromagnet which is provided with a magnetic coil 11, is fastened in the lower housing part 2.
  • the intermediate plate 8 is shown in Figure 2 alone, perspective. One notices on the side facing the contact bridge support 6, a wide groove 13, into which the contact bridge support 6 is inserted non-rotatably transversely to the direction of movement, as can also be seen from FIGS. 1, 3 and 4.
  • the intermediate plate 8 carries on its side facing the armature 9 elastic elements which span the armature 9 and the contact bridge support 6 apart.
  • the elastic elements resting on the end regions of the armature 9 consist of two elastic anchor beams 14 and those which bear on the end regions of the coupling bolt 10 are two elastic bolt beams 15.
  • the intermediate plate 8 is made of a thermoplastic material with good bending properties , so that the resilient beams 14, 15 ensure the resilient connection between the armature 9 and the contact bridge support 6.
  • the intermediate plate 8 is provided with two openings 16 visible in FIG.
  • the two coupling hooks 17 of the contact bridge carrier 6 are pierced through these openings 16.
  • the coupling bolt 10 can be pierced through the bore 19 of the armature 9 which is transverse to the direction of movement.
  • the coupling pin 10 lies in the entire length of the bore 19 in the armature 9.
  • the contact bridge support 6 is in trailing connection via the two coupling hooks 17 with the end regions of the coupling bolt 10.
  • the two resilient bolt bars 15 lie next to the coupling hooks 17 at the end regions of the coupling bolt 10.
  • the towing connection and the resilient bolt beam 15 allow a resilient pivoting movement of the armature 9 with respect to the contact bridge support 6 in the longitudinal plane of the coupling bolt lying in the direction of movement.
  • a sprung pivoting movement about the longitudinal axis of the coupling bolt 10 is also possible thanks to the two resilient anchor bars 14 resting in the end regions of the armature 9.
  • An all-round articulated, resilient connection between the armature 9 and the contact bridge carrier 6 is thus possible.
  • the intermediate plate 8 is provided on both sides with protruding, lateral guide elements 20 which ensure the guide bridge carrier 6 is guided in the housing 1 in corresponding guide parts of the housing 1, which are not shown in detail.
  • the guide elements 20 also serve as drive connection points for an auxiliary switchgear that can be attached to the switchgear and is not shown. In this case, the guide elements 20 are guided in open grooves in the housing wall in the direction of movement.
  • the one-piece intermediate plate 8 consisting of a thermoplastic material serves on the one hand thanks to the good resilient properties as a tensioning element between the armature 9 and the contact bridge support 6 and on the other hand thanks to the good sliding properties also as a guide element for the contact bridge support 6 in the housing 1.
  • the contact bridge support 6 is independent from the intermediate plate 8 made of a thermosetting plastic with sufficient mechanical strength and dimensional stability for all switching devices occurring.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)
  • Dental Preparations (AREA)
  • Control Of Electric Motors In General (AREA)
  • Relay Circuits (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Elimination Of Static Electricity (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Electromagnets (AREA)

Abstract

The relay incorporates a contact bridge carrier (6), a thermoplastic intermediate plate (8), an armature (9) and a coupler (10) together with two pairs of elastic beams (14,15) forming a resilient connection between the contact bridge carrier and armature. The coupler is a bolt inserted into a hole (19) at right angles to the direction of movement of the armature. The intermediate plate has lateral projections (20) on both sides for guidance of the contact bridge carrier into the housing. These serve also as points of application of the drive for an auxiliary switch (not depicted).

Description

Die vorliegende Erfindung betrifft ein elektromagnetisches Schaltgerät, insbesondere Schütz mit gelenkiger Verbindung zwischen Anker und Kontaktbrückenträger, mit einem Anker, mit einem im Gehäuse des Schaltgerätes verschiebbar geführten Kontaktbrückenträger und mit einem in einer zur Bewegungsrichtung quer liegenden Bohrung des Ankers eingesetzten, für den Anschluss am Kontaktbrückenträger vorgesehenen Kupplungsbolzen, wobei der Anker und der Kontaktbrückenträger mit mehreren um die in Bewegungsrichtung des Ankers liegende Symmetrieachse des Kontaktbrückenträgers symmetrisch angeordneten, elastischen Elementen verspannt sind.The present invention relates to an electromagnetic switching device, in particular a contactor with an articulated connection between the armature and the contact bridge support, with an armature, with a contact bridge support which is displaceably guided in the housing of the switching device, and with a plug inserted in a bore of the armature which is transverse to the direction of movement, for connection to the contact bridge support provided coupling bolts, the armature and the contact bridge support being braced with a plurality of elastic elements arranged symmetrically about the axis of symmetry of the contact bridge support lying in the direction of movement of the anchor.

Aus der DE-C-2142464 ist ein elektromagnetisches Schaltgerät der eingangs erwähnten Art bekannt. Bei diesem Schaltgerät ist eine Anordnung zur allseitig gelenkigen Verbindung des Ankers mit dem Kontaktbrückenträger vorgesehen. Man ist dabei davon ausgegangen, dass zu einer allseitig gelenkigen Verbindung eine zentrale, kleinflächige Abstützung zwischen dem Anker und dem mit dem Kontaktbrückenträger verbundenen Kupplungsbolzen erforderlich ist. Aus diesem Grunde liegt der Kupplungsbolzen nur in der Mitte der Bohrung an einer zentralen Stelle am Anker an. Mittels elastischer Elemente, die um die in Bewegungsrichtung des Ankers liegende Symmetrieachse des Kontaktbrückenträgers symmetrisch angeordnet sind, sind der Anker und der Kontaktbrückenträger voneinandergespannt. Diese allseitig gelenkige Verbindung zwischen Anker und Kontaktbrückenträger führt zu einer hohen Biegebeanspruchung des Kupplungsbolzens. Um die zentrale Auflagestelle des Kupplungsbolzens in der Bohrung des Ankers in der richtigen, zentralen Stellung zu halten, muss der Kupplungsbolzen in der gewünschten Lage montiert und verschiebungssicher ausgebildet sein. Für die Führung des Kontaktbrückenträgers im Gehäuse des Schaltgerätes sind an beiden Enden des Kupplungsbolzens Gleitansätze montiert. Diese bekannte Anordnung besteht aus zu vielen Einzelteilen, wodurch eine komplizierte Montage erforderlich ist und wirtschaftliche Nachteile entstehen.From DE-C-2142464 an electromagnetic switching device of the type mentioned is known. In this switching device, an arrangement is provided for connecting the armature to the contact bridge support in an articulated manner on all sides. It has been assumed that a central, small-area support between the armature and the coupling bolt connected to the contact bridge support is required for a joint that is articulated on all sides. For this reason, the coupling pin is only in the middle of the hole at a central point on the anchor. The armature and the contact bridge support are tensioned from one another by means of elastic elements which are arranged symmetrically about the axis of symmetry of the contact bridge support lying in the direction of movement of the armature. This joint, which is articulated on all sides, between the armature and the contact bridge support leads to high bending stress on the coupling bolt. In order to keep the central contact point of the coupling bolt in the correct, central position in the bore of the anchor, the coupling bolt must be mounted in the desired position and be designed so that it cannot move. For the guidance of the contact bridge carrier in the housing of the switching device, sliding lugs are mounted on both ends of the coupling bolt. This known arrangement consists of too many individual parts, which means that complicated assembly is required and economic disadvantages arise.

Die Aufgabe der vorliegenden Erfindung ist es, ein elektromagnetisches Schaltgerät der eingangs erwähnten Art zu entwickeln, bei dem der zur allseitig gelenkigen Verbindung des Ankers mit dem Kontaktbrückenträger verwendete, in der Bohrung des Ankers untergebrachte Kupplungsbolzen bei der Aufnahme von Stössen einer verhältnismässig kleinen Biegebeanspruchung ausgesetzt ist und weitgehend lageunabhängig montiert werden kann, aus verhältnismässig wenigen Teilen zusammengesetzt ist, eine hohe Lebensdauer aufweist und wirtschaftlich vorteilhaft ist.The object of the present invention is to develop an electromagnetic switching device of the type mentioned in the introduction, in which the coupling bolt used for all-round connection of the armature to the contact bridge support and accommodated in the bore of the armature when receiving Shocks is exposed to a relatively small bending stress and can be installed largely independent of position, is composed of relatively few parts, has a long service life and is economically advantageous.

Die gestellte Aufgabe ist dadurch gelöst, dass eine zwischen dem Anker und dem Kontaktbrückenträger angeordnete, am Kontaktbrückenträger quer zur Bewegungsrichtung verdrehungssicher anliegende, sich über die elastischen Elemente federnd sowohl auf den beiden Endbereichen des Kupplungsbolzens als auch senkrecht dazu auf den Endbereichen des Ankers abstützende, mit mehreren mit Führungsteilen des Gehäuses in Eingriff stehenden Führungselementen versehene Zwischenplatte vorgesehen ist und dass der Kupplungsbolzen mindestens in den beiden Endbereichen der Bohrung im Anker aufliegt und an seinen beiden Endbereichen mit dem Kontaktbrückenträger in Schleppverbindung steht. Die Zwischenplatte ist einfach herstellbar und wirtschaftlich vorteilhaft. Durch die Verwendung der Zwischenplatte ist die Montage des Schaltgerätes für eine einfache automatische Montage besonders geeignet. Dadurch dass der Kupplungsbolzen mindestens in den beiden Endbereichen der Bohrung im Anker aufliegt, ist bei der Aufnahme von Schlägen die Biegebeanspruchung des Kupplungsbolzens verhältnismässig niedrig, wodurch eine verhältnismässig lange Lebensdauer des Schaltgerätes auch erreichbar ist. Die zwischen dem Kupplungsbolzen und dem Kontaktbrückenträger vorgesehene Schleppverbindung erlaubt eine gelenkige Schwenkbewegung des Ankers gegen die auf den beiden Endbereichen des Kupplungsbolzens und senkrecht dazu auf den Endbereichen des Ankers wirkende Kraft der elastischen Elemente. Die Zwischenplatte übernimmt auch die Führung des Kontaktbrückenträgers und des Ankers im Gehäuse des Schaltgerätes. Die vorgesehene Anordnung besteht aus verhältnismässig wenigen Teilen und ist wirtschaftlich vorteilhaft.The object is achieved in that an arranged between the armature and the contact bridge support, which rests against rotation against the contact bridge support, rests against the elastic elements resiliently both on the two end regions of the coupling bolt and perpendicularly to the end regions of the armature a plurality of intermediate plates provided with guide parts of the housing which are in engagement is provided and that the coupling bolt rests in the armature at least in the two end regions of the bore and is in trailing connection with the contact bridge carrier at its two end regions. The intermediate plate is easy to manufacture and economically advantageous. By using the intermediate plate, the assembly of the switchgear is particularly suitable for simple automatic assembly. Because the coupling bolt rests in the armature at least in the two end regions of the bore, the bending stress of the coupling bolt is relatively low when impact is received, whereby a relatively long service life of the switching device can also be achieved. The towing connection provided between the coupling bolt and the contact bridge carrier permits an articulated pivoting movement of the armature against the force of the elastic elements acting on the two end regions of the coupling bolt and perpendicularly to the end regions of the armature. The intermediate plate also takes over the guiding of the contact bridge carrier and the armature in the housing of the switching device. The proposed arrangement consists of relatively few parts and is economically advantageous.

Die Zwischenplatte weist vorteilhafterweise mindestens eine Antriebsanschlussstelle für mindestens ein am Schaltgerät seitenanbaubares Hilfsschaltgerät auf. Die Zwischenplatte ist besonders geeignet mit einer von aussen zugänglichen Antriebsanschlusstelle versehen zu sein.The intermediate plate advantageously has at least one drive connection point for at least one auxiliary switching device that can be attached to the side of the switching device. The intermediate plate is particularly suitable to be provided with an externally accessible drive connection point.

Die elastischen Elemente bestehen mit Vorteil aus zwischen dem Anker und der Zwischenplatte und zwischen dem Kupplungsbolzen und der Zwischenplatte wirksamen, an der Zwischenplatte angeformten, federnden Balken. Diese Lösung ist auffallend vorteilhaft, weil die Zwischenplatte mit den elastischen Elementen einstückig ausgebildet ist. Die dadurch erreichbare einfache Montage des Schaltgerätes ist offensichtlich.The elastic elements advantageously consist of resilient beams formed between the armature and the intermediate plate and between the coupling bolt and the intermediate plate and molded on the intermediate plate. This solution is remarkably advantageous because the intermediate plate with the elastic elements is formed in one piece. The simple assembly of the switching device that can be achieved in this way is obvious.

Die Zwischenplatte kann aus einem Thermoplast-Kunststoff bestehen. Die für die Ausbildung der federnden Balken vorhandenen guten Biegeeigenschaften und für die Führung der Zwischenplatte im Gehäuse notwendigen guten Gleiteigenschaften des Thermoplast-Kunststoffes werden vorteilhaft ausgenützt.The intermediate plate can consist of a thermoplastic. The good bending properties available for the formation of the resilient beams and for the good sliding properties of the thermoplastic synthetic material necessary for guiding the intermediate plate in the housing are advantageously used.

Der Kontaktbrückenträger kann aus einem Duroplast-Kunststoff bestehen. Mit einem Duroplast-Kunststoff lässt sich der Kontaktbrückenträger mit einer für alle vorkommenden Schaltgeräte ausreichenden mechanischen Festigkeit und mit einer ausreichenden Formbeständigkeit verwirklichen.The contact bridge support can consist of a thermoset plastic. The contact bridge support can be realized with a thermosetting plastic with sufficient mechanical strength for all switching devices and with sufficient dimensional stability.

Im folgenden wird anhand der beiliegenden Zeichnungen ein Ausführungsbeispiel der Erfindung näher beschrieben. Es zeigen:

Fig.1
einen schematischen Querschnitt eines elektromagnetischen Schaltgerätes,
Fig.2
die perspektivische Darstellung einer Zwischenplatte,
Fig.3
ein perspektivisches Fluchtbild der aus Kontaktbrückenträger, Zwischenplatte, Anker und Kupplungsbolzen bestehenden, allseitig gelenkigen Anordnung,
Fig.4
eine perspektivische Zeichnung des mit dem Anker zusammengebauten Kontaktbrückenträgers.
In the following an embodiment of the invention will be described with reference to the accompanying drawings. Show it:
Fig. 1
1 shows a schematic cross section of an electromagnetic switching device,
Fig. 2
the perspective view of an intermediate plate,
Fig. 3
3 shows a perspective escape image of the arrangement which is articulated on all sides and consists of contact bridge support, intermediate plate, anchor and coupling bolt,
Fig. 4
a perspective drawing of the contact bridge carrier assembled with the anchor.

Der schematische Querschnitt eines elektromagnetischen Schaltgerätes, genauer eines Schützes zeigt in Fig.1 ein Gehäuse 1, einen Gehäuseunterteil 2 und einen Gehäuseoberteil 3. Im Gehäuse 1 und im Gehäuseoberteil 3 sind Kontaktbrücken 4 mit beweglichen Kontaktstücken 5 an einem Kontaktbrückenträger 6 festgehalten. Das Gehäuse 1 trägt die Festkontaktstücke 7. Der Kontaktbrückenträger 6 liegt quer zur Bewegungsrichtung unverdrehbar an einer Zwischenplatte 8 auf. Die Zwischenplatte 8 liegt zwischen dem Kontaktbrückenträger 6 und dem Anker 9 des Elektromagneten. Die Befestigung des Kontaktbrückenträgers 6 am Anker 9 mittels eines Kupplungsbolzens 10 wird später erklärt. Im Gehäuseunterteil 2 ist der mit einer Magnetspule 11 versehene Kern 12 des Elektromagneten befestigt.The schematic cross section of an electromagnetic switching device, more precisely a contactor, shows in FIG. 1 a housing 1, a lower housing part 2 and an upper housing part 3. The housing 1 carries the fixed contact pieces 7. The contact bridge support 6 lies non-rotatably on an intermediate plate 8 transversely to the direction of movement. The intermediate plate 8 lies between the contact bridge support 6 and the armature 9 of the electromagnet. The attachment of the contact bridge support 6 to the armature 9 by means of a coupling bolt 10 will be explained later. The core 12 of the electromagnet, which is provided with a magnetic coil 11, is fastened in the lower housing part 2.

Die Zwischenplatte 8 ist in Fig.2 allein, perspektivische dargestellt. Man erkennt an der dem Kontaktbrückenträger 6 zugekehrten Seite eine breite Nut 13, in welche der Kontaktbrückenträger 6 quer zur Bewegungsrichtung verdrehungssicher eingelegt wird, wie aus den Figuren 1, 3 und 4 auch ersichtlich ist. Die Zwischenplatte 8 trägt an ihrer dem Anker 9 zugekehrten Seite elastische Elemente, die den Anker 9 und den Kontaktbrückenträger 6 auseinanderspannen. Die an den Endbereichen des Ankers 9 anliegenden elastischen Elemente bestehen aus zwei elastischen Anker-Balken 14 und diejenige die an den Endbereichen des Kupplungsbolzens 10 anliegen, sind zwei elastische Bolzen-Balken 15. Die Zwischenplatte 8 ist aus einem Thermoplast-Kunststoff mit guten Biegeeigenschaften hergestellt, so dass die federnden Balken 14, 15 die federnde Verbindung zwischen dem Anker 9 und dem Kontaktbrückenträger 6 sicherstellen. Die Zwischenplatte 8 ist mit zwei in Fig.3 sichtbaren Durchbrüchen 16 versehen. Durch diese Durchbrüche 16 werden die beiden Kupplungshaken 17 des Kontaktbrückenträgers 6 durchgestossen. Durch die Oeffnung 18 in der auf den Anker 9 aufgesetzten Zwischenplatte 8 und durch die Kupplungshaken 17 des Kontaktbrückenträgers 6 kann der Kupplungsbolzen 10 durch die zur Bewegungsrichtung quer liegende Bohrung 19 des Ankers 9 durchgestossen werden. Der Kupplungsbolzen 10 liegt in der ganzen Länge der Bohrung 19 im Anker 9 auf.The intermediate plate 8 is shown in Figure 2 alone, perspective. One notices on the side facing the contact bridge support 6, a wide groove 13, into which the contact bridge support 6 is inserted non-rotatably transversely to the direction of movement, as can also be seen from FIGS. 1, 3 and 4. The intermediate plate 8 carries on its side facing the armature 9 elastic elements which span the armature 9 and the contact bridge support 6 apart. The elastic elements resting on the end regions of the armature 9 consist of two elastic anchor beams 14 and those which bear on the end regions of the coupling bolt 10 are two elastic bolt beams 15. The intermediate plate 8 is made of a thermoplastic material with good bending properties , so that the resilient beams 14, 15 ensure the resilient connection between the armature 9 and the contact bridge support 6. The intermediate plate 8 is provided with two openings 16 visible in FIG. The two coupling hooks 17 of the contact bridge carrier 6 are pierced through these openings 16. Through the opening 18 in the intermediate plate 8 placed on the armature 9 and through the coupling hooks 17 of the contact bridge support 6, the coupling bolt 10 can be pierced through the bore 19 of the armature 9 which is transverse to the direction of movement. The coupling pin 10 lies in the entire length of the bore 19 in the armature 9.

In der fertig montierten Verbindungsanordnung zwischen dem Anker 9 und dem Kontaktbrückenträger 6, wie sie aus Fig.4 ersichtlich ist, steht der Kontaktbrückenträger 6 über die beiden Kupplungshaken 17 mit den Endbereichen des Kupplungsbolzens 10 in Schleppverbindung. Die beiden federnden Bolzen-Balken 15 liegen neben den Kupplungshaken 17 an den Endbereichen des Kupplungsbolzens 10 auf. Die Schleppverbindung und die federnden Bolzen-Balken 15 erlauben eine federnde Schwenkbewegung des Ankers 9 in Bezug auf den Kontaktbrückenträger 6 in der in Bewegungsrichtung liegenden Längsebene des Kupplungsbolzens. Eine gefederte Schwenkbewegung um die Längsachse des Kupplungsbolzens 10 ist dank den beiden, in den Endbereichen des Ankers 9 aufliegenden, federnden Anker-Balken 14 auch möglich. Somit ist eine allseitig gelenkige, federnde Verbindung zwischen dem Anker 9 und dem Kontaktbrückenträger 6 möglich.In the fully assembled connection arrangement between the armature 9 and the contact bridge support 6, as can be seen from FIG. 4, the contact bridge support 6 is in trailing connection via the two coupling hooks 17 with the end regions of the coupling bolt 10. The two resilient bolt bars 15 lie next to the coupling hooks 17 at the end regions of the coupling bolt 10. The towing connection and the resilient bolt beam 15 allow a resilient pivoting movement of the armature 9 with respect to the contact bridge support 6 in the longitudinal plane of the coupling bolt lying in the direction of movement. A sprung pivoting movement about the longitudinal axis of the coupling bolt 10 is also possible thanks to the two resilient anchor bars 14 resting in the end regions of the armature 9. An all-round articulated, resilient connection between the armature 9 and the contact bridge carrier 6 is thus possible.

Die Zwischenplatte 8 ist an beiden Seiten mit vorstehenden, seitlichen Führungselementen 20 versehen, die in entsprechenden, nicht näher dargestellten Führungsteilen des Gehäuses 1 für die Führung des Kontaktbrückenträgers 6 im Gehäuse 1 sorgen. Die Führungselemente 20 dienen zugleich auch als Antriebsanschlusstellen für ein am Schaltgerät seitenanbaubares, nicht dargestelltes Hilfsschaltgerät. In diesem Fall sind die Führungselemente 20 in offenen Nuten in der Gehäusewandung in Bewegungsrichtung verschiebbar geführt.The intermediate plate 8 is provided on both sides with protruding, lateral guide elements 20 which ensure the guide bridge carrier 6 is guided in the housing 1 in corresponding guide parts of the housing 1, which are not shown in detail. The guide elements 20 also serve as drive connection points for an auxiliary switchgear that can be attached to the switchgear and is not shown. In this case, the guide elements 20 are guided in open grooves in the housing wall in the direction of movement.

Die einstückige, aus einem Thermoplast-Kunststoff bestehende Zwischenplatte 8 dient einerseits dank den guten federnden Eigenschaften als Verspannungselement zwischen dem Anker 9 und dem Kontaktbrückenträger 6 und anderseits dank den guten Gleiteigenschaften auch als Führungselement für den Kontaktbrückenträger 6 im Gehäuse 1. Der Kontaktbrückenträger 6 besteht unabhängig von der Zwischenplatte 8 aus einem Duroplast-Kunststoff mit einer für alle vorkommenden Schaltgräte ausreichenden mechanischen Festigkeit und Formbeständigkeit.The one-piece intermediate plate 8 consisting of a thermoplastic material serves on the one hand thanks to the good resilient properties as a tensioning element between the armature 9 and the contact bridge support 6 and on the other hand thanks to the good sliding properties also as a guide element for the contact bridge support 6 in the housing 1. The contact bridge support 6 is independent from the intermediate plate 8 made of a thermosetting plastic with sufficient mechanical strength and dimensional stability for all switching devices occurring.

Claims (5)

Elektromagnetisches Schaltgerät, insbesondere Schütz mit gelenkiger Verbindung zwischen Anker (9) und Kontaktbrückenträger (6), mit einem Anker (9), mit einem im Gehäuse (1) des Schaltgerätes verschiebbar geführten Kontaktbrückenträger (6) und mit einem in einer zur Bewegungsrichtung quer liegenden Bohrung (19) des Ankers (9) eingesetzten, für den Anschluss am Kontaktbrückenträger (6) vorgesehenen Kupplungsbolzen (10), wobei der Anker (9) und der Kontaktbrückenträger (6) mit mehreren um die in Bewegungsrichtung des Ankers (9) liegende Symmetrieachse des Kontaktbrückenträgers (6) symmetrisch angeordneten, elastischen Elementen (14, 15) verspannt sind, dadurch gekennzeichnet, dass eine zwischen dem Anker (9) und dem Kontaktbrückenträger (6) angeordnete, am Kontaktbrückenträger (6) quer zur Bewegungsrichtung verdrehungssicher anliegende, sich über die elastischen Elemente (14, 15) federnd sowohl auf den beiden Endbereichen des Kupplungsbolzens (10) als auch senkrecht dazu auf den Endbereichen des Ankers (9) abstützende, mit mehreren mit Führungsteilen des Gehäuses (1) in Eingriff stehenden Führungselementen (20) versehene Zwischenplatte (8) vorgesehen ist und dass der Kupplungsbolzen (10) mindestens in den beiden Endbereichen der Bohrung (19) im Anker (9) aufliegt und an seinen beiden Endbereichen mit dem Kontaktbrückenträger (6) in Schleppverbindung steht.Electromagnetic switching device, in particular a contactor with an articulated connection between armature (9) and contact bridge support (6), with an armature (9), with a contact bridge support (6) guided displaceably in the housing (1) of the switching device and with one which is transverse to the direction of movement Bore (19) of the armature (9) inserted, provided for the connection to the contact bridge support (6) coupling bolt (10), the armature (9) and the contact bridge support (6) with several around the axis of symmetry in the direction of movement of the armature (9) of the contact bridge support (6), symmetrically arranged, elastic elements (14, 15) are clamped, characterized in that one between the armature (9) and the contact bridge support (6), which rests against the contact bridge support (6) in a rotationally secure manner transversely to the direction of movement, overlaps the elastic elements (14, 15) are resilient both on the two end regions of the coupling bolt (10) and vertically For this purpose, there is provided an intermediate plate (8) supporting on the end regions of the armature (9) and provided with a plurality of guide elements (20) which engage with guide parts of the housing (1) and that the coupling bolt (10) at least in the two end regions of the bore (19 ) rests in the armature (9) and is in trailing connection with the contact bridge support (6) at its two end regions. Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Zwischenplatte (8) mindestens eine Antriebsanschlusstelle (20) für mindestens ein am Schaltgerät seitenanbaubares Hilfsschaltgerät aufweist.Electromagnetic switching device according to claim 1, characterized in that the intermediate plate (8) has at least one drive connection point (20) for at least one auxiliary switching device which can be mounted on the side of the switching device. Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, dass die elastischen Elemente (14, 15) aus zwischen dem Anker (9) und der Zwischenplatte (8) und zwischen dem Kupplungsbolzen (10) und der Zwischenplatte (8) wirksamen, an der Zwischenplatte (8) angeformten, federnden Balken (14, 15) bestehen.Electromagnetic switching device according to claim 1, characterized in that the elastic elements (14, 15) between the armature (9) and the intermediate plate (8) and between the coupling bolt (10) and the intermediate plate (8) effective on the intermediate plate ( 8) molded, resilient beams (14, 15). Elektromagnetischen Schaltgerät nach Anspruch 3, dadurch gekennzeichnet, dass die Zwischenplatte (8) aus einem Thermoplast- Kunststoff besteht.Electromagnetic switching device according to claim 3, characterized in that the intermediate plate (8) consists of a thermoplastic. Elektromagnetisches Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Kontaktbrückenträger (6) aus einem Duroplast-Kunststoff besteht.Electromagnetic switching device according to claim 1, characterized in that the contact bridge support (6) consists of a thermosetting plastic.
EP96101421A 1995-04-20 1996-02-01 Electromagnetic switch apparatus, particularly a contactor Expired - Lifetime EP0739021B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1126/95 1995-04-20
CH01126/95A CH691880A5 (en) 1995-04-20 1995-04-20 Electromagnetic switching device, in particular contactor.
CH112695 1995-04-20

Publications (3)

Publication Number Publication Date
EP0739021A2 true EP0739021A2 (en) 1996-10-23
EP0739021A3 EP0739021A3 (en) 1998-07-08
EP0739021B1 EP0739021B1 (en) 2003-05-14

Family

ID=4203104

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EP96101421A Expired - Lifetime EP0739021B1 (en) 1995-04-20 1996-02-01 Electromagnetic switch apparatus, particularly a contactor

Country Status (8)

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US (1) US5717370A (en)
EP (1) EP0739021B1 (en)
AT (1) ATE240584T1 (en)
CH (1) CH691880A5 (en)
DE (1) DE59610433D1 (en)
DK (1) DK0739021T3 (en)
ES (1) ES2193211T3 (en)
PT (1) PT739021E (en)

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US6013889A (en) * 1997-06-02 2000-01-11 Allen-Bradley Company, Llc Method for retaining a movable contact in a circuit interrupter
FR2772792B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets ELECTRIC ACTUATOR POSITIONING BOX FOR CROWD FORMATION AND WEAVING
US6194984B1 (en) * 1998-09-30 2001-02-27 Rockwell Technologies, Llc Movable contact assembly for an electrical contactor
DE19943965A1 (en) * 1999-09-14 2001-03-15 Moeller Gmbh Low voltage switchgear
US6297717B1 (en) * 2000-03-10 2001-10-02 Eaton Corporation Contactor with floating armature
DE102007017516B3 (en) * 2007-04-13 2008-04-30 Siemens Ag Electromagnetic switching device e.g. contactor, manufacturing method, involves fixing main coverings in switching chamber, so that main coverings cover main counter contact points and fix separation units in switching chamber
JP4978527B2 (en) * 2008-03-24 2012-07-18 富士電機機器制御株式会社 Contact holder for electrical equipment and assembly method for contact holder
FR2999791B1 (en) * 2012-12-18 2015-01-02 Schneider Electric Ind Sas MODULAR ELECTRICAL SWITCHING DEVICE COMPRISING AT LEAST ONE UNIPOLAR CUT-OFF BLOCK AND SWITCHING ARRANGEMENT HAVING SUCH DEVICES
CN104576218B (en) * 2015-01-12 2017-06-20 厦门宏发开关设备有限公司 A kind of contactor reduces friction buffer structure
CN106206170B (en) * 2016-08-31 2019-04-26 厦门宏发开关设备有限公司 A kind of contactor head supporting apparatus
CN110211843A (en) * 2019-04-11 2019-09-06 厦门宏发开关设备有限公司 A kind of wear-resisting mute contactor head supporting apparatus

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Also Published As

Publication number Publication date
DK0739021T3 (en) 2003-06-10
US5717370A (en) 1998-02-10
EP0739021A3 (en) 1998-07-08
ES2193211T3 (en) 2003-11-01
EP0739021B1 (en) 2003-05-14
CH691880A5 (en) 2001-11-15
PT739021E (en) 2003-09-30
DE59610433D1 (en) 2003-06-18
ATE240584T1 (en) 2003-05-15

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