EP0172986A2 - Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch - Google Patents

Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch Download PDF

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Publication number
EP0172986A2
EP0172986A2 EP85103785A EP85103785A EP0172986A2 EP 0172986 A2 EP0172986 A2 EP 0172986A2 EP 85103785 A EP85103785 A EP 85103785A EP 85103785 A EP85103785 A EP 85103785A EP 0172986 A2 EP0172986 A2 EP 0172986A2
Authority
EP
European Patent Office
Prior art keywords
connecting rod
contact plunger
switch
drive device
compression spring
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
EP85103785A
Other languages
German (de)
French (fr)
Other versions
EP0172986B1 (en
EP0172986A3 (en
Inventor
Hans-Rudolf Wüthrich
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.)
General Electric Switzerland GmbH
Original Assignee
Sprecher Energie AG
Sprecher und Schuh AG
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
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Application filed by Sprecher Energie AG, Sprecher und Schuh AG filed Critical Sprecher Energie AG
Priority to AT85103785T priority Critical patent/ATE59496T1/en
Publication of EP0172986A2 publication Critical patent/EP0172986A2/en
Publication of EP0172986A3 publication Critical patent/EP0172986A3/en
Application granted granted Critical
Publication of EP0172986B1 publication Critical patent/EP0172986B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66238—Specific bellows details
    • H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/18896—Snap action

Definitions

  • the invention relates to a drive device for an electrical switch with pressure contacts, in particular for a vacuum switch according to the preamble of claim 1.
  • Such a drive device is known for example from DE-GM 81 09 229.6.
  • the lever mechanism has an angle lever.
  • an S-shaped link is formed, into which a fixedly anchored pin engages, while the drive rod is articulated at the end of the other arm.
  • the pivot axis of the angle lever is attached to a plunger which is coaxial with the contact plunger and how it can be moved longitudinally. If the angle lever is pivoted, its pivot axis rises or falls, since a fixed pin engages in the S-shaped link.
  • the counterforce emanating from the compression spring surrounding the plunger generates in cooperation with the S-shaped link the pivot axis of the angle lever attached to the ram shear forces, not only by this pivot axis but also by the guidance of the ram are to be included and also stress the ram to bend.
  • the proposed drive device has the features defined in the characterizing part of patent claim 1.
  • the drive device 10 shown has a box-shaped housing 11 on which an only partially visible vacuum interrupter 12 of a vacuum switch is supported and which in turn is anchored to the rear wall of a drive (not shown) via a support insulator 13.
  • the support insulator 13 is anchored to the end wall 14 of the housing 11, while the side walls of the latter are designated 15 and 16.
  • a contact plunger 17 which carries the movable contact piece (not shown), is led out of the vacuum interrupter 12, which contains the switching contacts of the vacuum interrupter, in a vacuum-tight manner, but can be moved out longitudinally.
  • the lower, free end of the contact plunger 17 carries a guide pin 18 running at right angles to it, which extends at both ends through elongated holes 19, 20 formed in the side walls 15, 16 and extending parallel to the direction of movement of the contact plunger 17 and there e.g. is secured by means of split pins 21 'or similar securing elements.
  • a connecting rod 25 is articulated on the guide pin 18 via elongated holes 21, 22 which are formed in the legs 23, 24 of its forked end. This forked end of the connecting rod 25 is surrounded by a sleeve 26 which is displaceable thereon and which is penetrated transversely by the guide pin 18 without play.
  • the lower end of the connecting rod 25 has a shoulder 27 and is also bifurcated.
  • the two legs 28, 29 at the lower end of the connecting rod 25 are penetrated without play by a pin 30 parallel to the guide pin 18, which extends through the sides at both ends walls 15, 16 formed, congruent, S-shaped slots 31, 32 extending therethrough and there also secured by split pins 33.
  • the two S-shaped slots 31, 32 together form the S-shaped backdrop.
  • the two legs 28, 29 at the lower end of the connecting rod 25 engage around one end 34 of a drive rod made of electrically insulating material, into which the pin 30 is pressed and which can be moved back and forth in the sense of the double arrow 36 by means of a drive unit, not shown.
  • the connecting rod 25 is surrounded by a compression spring 37 which is supported at one end on the shoulder 27 and at the other end on the lower end face of the sleeve 26.
  • the compression spring thus acts via the sleeve 26, which is pivotable but not axially displaceable with respect to the contact plunger 17 and via the guide pin 18 on the contact plunger 17th
  • Fig. 1 the switch-on position is shown in solid lines. It can be seen that the guide pin 18 does not abut the lower end of the elongated holes 21, 22. The connecting rod 25 is therefore not loaded.
  • the compression spring 37 tensioned in the switched-on position acts on the sleeve 26 and, via this, on the guide pin 18, which, however, can only move parallel to the direction of movement of the contact plunger thanks to the elongated holes 21, 22.
  • the compression spring 37 is at an angle to Contact plunger is, this is only exposed to the force component effective in its direction of displacement, while the transverse force component is supported via the ends of the guide pin 18 in the elongated holes 19, 20.
  • the contact plunger is not subjected to any bending stress.
  • the drive device 10 is designed such that the contacts of the vacuum switch come into contact when the connecting rod 25 is in a position aligned with the direction of displacement of the contact plunger 17, as indicated in FIG. 1 by the dashed line 38 .
  • This can be done, for example, by changing the length of the outside End of the contact plunger 17, for example, are set with an adjusting nut 39.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)

Abstract

A reciprocatingly movable actuating rod is coupled to a longitudinally translatable contact plunger through a linkage and a stationarily arranged S-shaped guideway. A compression spring which is compressible during the course of a switching engagement stroke also acts upon the contact plunger. In order to keep especially the contact plunger as free as possible from transverse forces during the switching stroke and to keep the actuating rod unloaded both in the engaged position and in the disengaged switching stroke position, one end of the actuating rod, which extends perpendicular to the direction of motion of the contact plunger, carries a journal pin engaging the guideway. One end of a connecting rod included in the linkage is pivotably connected to the journal pin. The other end of the connecting rod is pivotably connected to the contact plunger through an entrainment sleeve. The compression spring, which pivots conjointly with the connecting rod, is supported at one end on the connecting rod and at the other end on a coupling sleeve defining the entrainment sleeve on the contact plunger. The guideway is configured such that it has end regions respectively associated with the engaged and disengaged switching stroke positions and which extend perpendicular to the connecting rod.

Description

Die Erfindung betrifft eine Antriebsvorrichtung für einen elektrischen Schalter mit Druckkontakten, insbesondere für einen Vakuumschalter nach dem Oberbegriff des Patentanspruches 1.The invention relates to a drive device for an electrical switch with pressure contacts, in particular for a vacuum switch according to the preamble of claim 1.

Eine derartige Antriebsvorrichtung ist beispielsweise aus dem DE-GM 81 09 229.6 bekannt geworden. Bei dieser bekannten Antriebsvorrichtung weist das Hebelwerk einen Winkelhebel auf. Im Endbereich des einen Armes dieses Winkelhebels ist eine S-förmige Kulisse ausgebildet, in die ein ortsfest verankerter Zapfen angreift, während am Ende des anderen Armes die Antriebsstange angelenkt ist. Die Schwenkachse des Winkelhebels ist an einem Stössel befestigt, der koaxial zum Kontaktstössel und wie dieser längsverschiebbar ist. Wird der Winkelhebel verschwenkt, hebt oder senkt sich dessen Schwenkachse, da ja ein ortsfester Zapfen in die S-förmige Kulisse eingreift. Namentlich wenn der ortsfeste Zapfen im mittleren Bereich der S-förmigen Kulisse ist, die Antriebsvorrichtung sich also zwischen der Ein- und Ausschaltstellung (oder umgekehrt) befindet, erzeugt die von der den Stössel umgebenden Druckfeder ausgehende Gegenkraft im Zusammenwirken mit der S-förmigen Kulisse auf die am Stössel befestigte Schwenkachse des Winkelhebels Scherkräfte, die nicht nur durch diese Schwenkachse sondern auch durch die Führung des Stössels aufzunehmen sind und ausserdem den Stössel auf Biegung beanspruchen.Such a drive device is known for example from DE-GM 81 09 229.6. In this known drive device, the lever mechanism has an angle lever. In the end region of one arm of this angle lever, an S-shaped link is formed, into which a fixedly anchored pin engages, while the drive rod is articulated at the end of the other arm. The pivot axis of the angle lever is attached to a plunger which is coaxial with the contact plunger and how it can be moved longitudinally. If the angle lever is pivoted, its pivot axis rises or falls, since a fixed pin engages in the S-shaped link. Specifically, when the fixed pin is in the central area of the S-shaped link, that is, the drive device is between the on and off position (or vice versa), the counterforce emanating from the compression spring surrounding the plunger generates in cooperation with the S-shaped link the pivot axis of the angle lever attached to the ram shear forces, not only by this pivot axis but also by the guidance of the ram are to be included and also stress the ram to bend.

Bezüglich der auf den Stössel wirkenden Scherkräfte gilt ähnliches für die der US-PS 4.225.765 entnehmbare Antriebsvorrichtung für einen Vakuumschalter, wobei dort aber keine S-förmige Kulisse vorhanden ist.With regard to the shear forces acting on the plunger, the same applies to the drive device for a vacuum switch which can be found in US Pat. No. 4,225,765, but there is no S-shaped link there.

Es ist daher ein Zweck der Erfindung, eine Antriebsvorrichtung der eingangs genannten Art zu schaffen, die ohne Winkelhebel auskommt, also eines geringeren technischen Aufwandes bedarf, und bei der die bei einem Schalthub auftretenden Kräfte, insbesondere die Scher- oder Querkräfte besser beherrschbar sind.It is therefore a purpose of the invention to provide a drive device of the type mentioned at the outset which does not require an angle lever, that is to say requires less technical effort, and in which the forces which occur during a switching stroke, in particular the shear or transverse forces, can be better controlled.

Zu diesem Zweck weist die vorgeschlagene Antriebsvorrichtung die im Kennzeichen des Patentanspruches 1 definierten Merkmale auf.For this purpose, the proposed drive device has the features defined in the characterizing part of patent claim 1.

Bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen definiert.Preferred embodiments are defined in the dependent claims.

Ein Ausführungsbeispiel der vorgeschlagenen Antriebsvorrichtung ist nachstehend anhand der Zeichnung näher beschrieben. Es zeigt:

  • Fig. 1 einen Schnitt längs der Linie I-I der Fig. 2, wobei allerdings der Pleuel ungeschnitten dargestellt ist, und
  • Fig. 2 einen Schnitt längs der Linie II-II der Fig.l.
An embodiment of the proposed drive device is described below with reference to the drawing. It shows:
  • Fig. 1 shows a section along the line II of Fig. 2, but the connecting rod is shown uncut, and
  • Fig. 2 shows a section along the line II-II of Fig.l.

Die dargestellte Antriebsvorrichtung 10 besitzt ein kastenförmiges Gehäuse 11, auf dem eine nur teilweise sichtbare Vakuumschaltröhre 12 eines Vakuumschalters abgestützt ist und die ihrerseits über einen Tragisolator 13 an der Rückwand eines Antriebes (nicht dargestellt) verankert ist. Der Tragisolator 13 ist an der Stirnwand 14 des Gehäuses 11 verankert, während die Seitenwände des letzteren mit 15 und 16 bezeichnet sind.The drive device 10 shown has a box-shaped housing 11 on which an only partially visible vacuum interrupter 12 of a vacuum switch is supported and which in turn is anchored to the rear wall of a drive (not shown) via a support insulator 13. The support insulator 13 is anchored to the end wall 14 of the housing 11, while the side walls of the latter are designated 15 and 16.

Aus der Vakuumschaltröhre 12, die die Schaltkontakte des Vakuumschalters enthält, ist ein Kontaktstössel 17, der das bewegliche Kontaktstück (nicht dargestellt) trägt, vakuumdicht, jedoch längsverschiebbar herausgeführt. Das untere, freie Ende des Kontaktstössels 17 trägt einen rechtwinklig zu diesem verlaufenden Führungsstift 18, der sich beiderends durch in den Seitenwänden 15, 16 ausgebildete parallel zur Bewegungsrichtung des Kontaktstössels 17 verlaufende Langlöcher 19, 20 hindurcherstreckt und daselbst z.B. mittels Splinten 21' oder ähnlichen Sicherungselementen gesichert ist.A contact plunger 17, which carries the movable contact piece (not shown), is led out of the vacuum interrupter 12, which contains the switching contacts of the vacuum interrupter, in a vacuum-tight manner, but can be moved out longitudinally. The lower, free end of the contact plunger 17 carries a guide pin 18 running at right angles to it, which extends at both ends through elongated holes 19, 20 formed in the side walls 15, 16 and extending parallel to the direction of movement of the contact plunger 17 and there e.g. is secured by means of split pins 21 'or similar securing elements.

An dem Führungsstift 18 ist über Langlöcher 21, 22, die in den Schenkeln 23, 24 seines gegabelten Endes ausgebildet sind, ein Pleuel 25 angelenkt. Dieses gegabelte Ende des Pleuels 25 ist von einer auf diesem verschiebbaren Hülse 26 umgeben, die spielfrei vom Führungsstift 18 quer durchsetzt ist. Das untere Ende des Pleuels 25 weist eine Schulter 27 auf und ist ebenfalls gegabelt. Die beiden Schenkel 28, 29 am unteren Ende des Pleuels 25 sind spielfrei von einem zum Führungsstift 18 parallelen Zapfen 30 durchsetzt, der sich beiderends durch in den Seitenwänden 15, 16 ausgebildete, unter sich kongruente, S-förmig geformte Schlitze 31, 32 hindurcherstreckt und daselbst ebenfalls durch Splinten 33 gesichert ist. Die beiden S-förmigen Schlitze 31, 32 bilden zusammen die S-förmige Kulisse.A connecting rod 25 is articulated on the guide pin 18 via elongated holes 21, 22 which are formed in the legs 23, 24 of its forked end. This forked end of the connecting rod 25 is surrounded by a sleeve 26 which is displaceable thereon and which is penetrated transversely by the guide pin 18 without play. The lower end of the connecting rod 25 has a shoulder 27 and is also bifurcated. The two legs 28, 29 at the lower end of the connecting rod 25 are penetrated without play by a pin 30 parallel to the guide pin 18, which extends through the sides at both ends walls 15, 16 formed, congruent, S-shaped slots 31, 32 extending therethrough and there also secured by split pins 33. The two S-shaped slots 31, 32 together form the S-shaped backdrop.

Die beiden Schenkel 28, 29 am unteren Ende des Pleuels 25 umgreifen das eine Ende 34 einer Antriebsstange aus elektrisch isolierendem Material, in welche der Zapfen 30 eingepresst ist und welche mittels eines nicht dargestellten Antriebsaggregates im Sinne des Doppelpfeiles 36 hin und her verschiebbar ist.The two legs 28, 29 at the lower end of the connecting rod 25 engage around one end 34 of a drive rod made of electrically insulating material, into which the pin 30 is pressed and which can be moved back and forth in the sense of the double arrow 36 by means of a drive unit, not shown.

Der Pleuel 25 ist von einer Druckfeder 37 umgeben, die einerends auf der Schulter 27 und andernends an der unteren Stirnseite der Hülse 26 abgestützt ist. Somit wirkt die Druckfeder über die Hülse 26, die bezüglich des Kontaktstössels 17 wohl verschwenkbar aber nicht axial verschiebbar ist und über den Führungsstift 18 auf den Kontaktstössel 17.The connecting rod 25 is surrounded by a compression spring 37 which is supported at one end on the shoulder 27 and at the other end on the lower end face of the sleeve 26. The compression spring thus acts via the sleeve 26, which is pivotable but not axially displaceable with respect to the contact plunger 17 and via the guide pin 18 on the contact plunger 17th

In Fig. 1 ist in ausgezogenen Linien die Einschaltstellung gezeigt. Man erkennt, dass der Führungsstift 18 nicht an dem unteren Ende der Langlöcher 21, 22 anliegt. Der Pleuel 25 ist daher nicht belastet. Die in Einschaltstellung gespannte Druckfeder 37 wirkt auf die Hülse 26 und über diese auf den Führungsstift 18, der sich aber dank der Langlöcher 21, 22 nur parallel zur Bewegungsrichtung des Kontaktstössels bewegen kann. Dies bedeutet, dass, obwohl in Einschaltstellung die Druckfeder 37 in einem Winkel zum Kontaktstössel steht, dieser nur der in seiner Verschiebungsrichtung wirksamen Kraftkomponente ausgesetzt ist, während die quer dazu gerichete Kraftkomponente über die Enden des Führungsstiftes 18 in den Langlöchern 19, 20 abgestützt ist. Der Kontaktstössel erfährt keinerlei Biegebeanspruchung.In Fig. 1 the switch-on position is shown in solid lines. It can be seen that the guide pin 18 does not abut the lower end of the elongated holes 21, 22. The connecting rod 25 is therefore not loaded. The compression spring 37 tensioned in the switched-on position acts on the sleeve 26 and, via this, on the guide pin 18, which, however, can only move parallel to the direction of movement of the contact plunger thanks to the elongated holes 21, 22. This means that, although in the switched-on position, the compression spring 37 is at an angle to Contact plunger is, this is only exposed to the force component effective in its direction of displacement, while the transverse force component is supported via the ends of the guide pin 18 in the elongated holes 19, 20. The contact plunger is not subjected to any bending stress.

Zieht man die Antriebsstange 35 in Fig. 1 nach rechts in die strichpunktiert gezeigte Ausschaltstellung, folgt das untere Ende des Pleuels 25 unter Verschwenkung um den Führungsstift 18 dem Verlauf der Kulisse 31, 32. Die Druckfeder 37 entspannt sich, und, da der Führungsstift 18 zum Anschlagen an die obern Enden der Langlöcher 21, 22 kommt, wird auch dieser und mit ihm der Kontaktstössel 17 nach unten gezogen.If the drive rod 35 in FIG. 1 is pulled to the right into the switch-off position shown in dash-dotted lines, the lower end of the connecting rod 25 follows the course of the link 31, 32 by pivoting about the guide pin 18. The compression spring 37 relaxes and, since the guide pin 18 comes to abut against the upper ends of the elongated holes 21, 22, this is also pulled down and with it the contact plunger 17.

Zu beachten ist, dass jene Bereiche der Kulisse 31, 32, die der Ein- bzw. Ausschaltstellung entsprechen, einen Verlauf haben, der rechtwinklig zum Verlauf des Pleuels 25 in der entsprechenden Schaltstellung ist. Dies heisst aber, dass sowohl in Ein- als auch in Ausschaltstellung die Antriebsstange 35 unbelastet bleibt.It should be noted that those areas of the link 31, 32 which correspond to the switch-on or switch-off position have a course which is perpendicular to the course of the connecting rod 25 in the corresponding switch position. However, this means that the drive rod 35 remains unloaded both in the on and in the off position.

Besonders zweckmässig ist es, wenn die Antriebsvorrichtung 10 so ausgelegt wird, dass die Kontakte des Vakuumschalters dann in Berührung gelangen, wenn der Pleuel 25 in einer mit der Verschieberichtung des Kontaktstössels 17 fluchtenden Stellung ist, wie in Fig. 1 mit der gestrichelten Linie 38 angegeben. Dies kann beispielsweise mit einer Veränderung der Länge des nach aussen geführten Endes des Kontaktstössels 17, beispielsweise mit einer Stellmutter 39 eingestellt sind.It is particularly expedient if the drive device 10 is designed such that the contacts of the vacuum switch come into contact when the connecting rod 25 is in a position aligned with the direction of displacement of the contact plunger 17, as indicated in FIG. 1 by the dashed line 38 . This can be done, for example, by changing the length of the outside End of the contact plunger 17, for example, are set with an adjusting nut 39.

Zweckmässig ist es auch, die Länge der entspannten Druckfeder 37 so zu wählen, dass sie in Ausschaltstellung bereits vorgespannt ist und im Zuge des Einschalthubes weiter gespannt wird, wenn der Pleuel 25 (in Fig. 1 von rechts kommend) sich der durch die gestrichelte Linie 38 angedeuteten Lage nähert. Dementsprechend ergibt sich eine flache Federcharakteristik und der Kontaktdruck ist auch bei Abbrand der Kontaktstücke gewährleistet, ohne dass das die Antriebsstange 35 treibende Antriebsaggregat eine merkbar grössere Antriebsleistung zu erbringen hätte.It is also expedient to choose the length of the relaxed compression spring 37 so that it is already pretensioned in the switched-off position and is further tensioned in the course of the switch-on stroke when the connecting rod 25 (coming from the right in FIG. 1) extends through the dashed line 38 indicated location is approaching. Accordingly, there is a flat spring characteristic and the contact pressure is ensured even when the contact pieces burn off, without the drive unit driving the drive rod 35 having to provide a noticeably greater drive power.

Claims (7)

1. Antriebsvorrichtung für einen elektrischen Schalter mit Druckkontakten, insbesondere für einen Vakuumschalter, mit einer hin und her antreibbaren Antriebsstange (35), die über ein Hebelwerk (25) und eine Kulisse (31, 32) an den längsverschiebbar geführten Kontaktstössel (17) des Schalters gekoppelt ist und mit einer im Zuge eines Einschalthubes spannbaren, auf den Kontaktstössel (17) wirkenden Druckfeder (37), dadurch gekennzeichnet, dass das Ende der im wesentlichen rechtwinklig zur Bewegungsrichtung des Kontaktstössels (17) verlaufenden Antriebsstange (35) einen in die ortsfest angeordnete Kulisse (31, 32) eingreifenden Zapfen (30) trägt, an dem das eine Ende (28, 29) eines Pleuels (25) angelenkt ist, dessen anderes Ende (23, 24) über eine Schleppverbindung (21, 22) am Kontaktstössel (17) angelenkt ist, während die mit dem Pleuel (25) verschwenkbare Druckfeder (37) einerends an diesem im Bereich seiner Anlenkstelle an der Antriebsstange (35) und andernends über ein Kopplungsstück (26) am Kontaktstössel (17) abgestützt ist, und dass die Kulisse (31, 32) so geformt ist, dass deren Verlauf in dem der Einschaltstellung entsprechenden Bereich rechtwinklig zur Richtung des Pleuels (25) verläuft.1.Drive device for an electrical switch with pressure contacts, in particular for a vacuum switch, with a back and forth drivable drive rod (35) via a lever mechanism (25) and a link (31, 32) to the longitudinally displaceable contact plunger (17) of the Switch is coupled and with a compression spring (37) which can be tensioned in the course of a switch-on stroke and acts on the contact plunger (17), characterized in that the end of the drive rod (35), which runs essentially at right angles to the direction of movement of the contact plunger (17), fits into the stationary position arranged link (31, 32) engaging pin (30) on which one end (28, 29) of a connecting rod (25) is articulated, the other end (23, 24) via a towing connection (21, 22) on the contact plunger (17) is articulated, while the compression spring (37), which can be pivoted with the connecting rod (25), is attached at one end to the connecting rod on the drive rod (35) and at the other end via a coupling piece (26) is supported on the contact plunger (17), and that the link (31, 32) is shaped such that its course in the area corresponding to the switch-on position is perpendicular to the direction of the connecting rod (25). 2. Antriebsvorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass am äusseren Ende des Kontaktstössels (17) ein rechtwinklig zu diesem sowie parallel zum Zapfen (30) verlaufender Führungsstift (18) befestigt ist, dass der Pleuel an seiner Anlenkstelle am Kontaktstössel (17) wenigstens ein vom Führungsstift (18) durchsetztes Langloch (21, 22) aufweist, wobei beide Enden des Führungsstiftes (18) je in einer ortsfesten, parallel zur Bewegungsrichtung des Kontaktstössels (17) verlaufenden Führung (19, 20) geführt sind.2. Drive device according to claim 1, characterized characterized in that a guide pin (18) running at right angles thereto and parallel to the pin (30) is attached to the outer end of the contact plunger (17), that the connecting rod at its articulation point on the contact plunger (17) has at least one elongated hole penetrated by the guide pin (18) (21, 22), both ends of the guide pin (18) each being guided in a fixed guide (19, 20) running parallel to the direction of movement of the contact plunger (17). 3. Antriebsvorrichtung nach Patentanspruch 2, dadurch gekennzeichnet, dass das am Kontaktstössel (17) angelenkte Ende des Pleuels (25) gegabelt und von einer Hülse (26) umgeben ist, die quer und spielfrei vom Führungsstift (18) durchsetzt ist, wobei die Druckfeder auf einer Stirnseite der Hülse (26) abgestützt ist.3. Drive device according to claim 2, characterized in that the end of the connecting rod (25) articulated on the contact plunger (17) is forked and surrounded by a sleeve (26) which is penetrated transversely and without play by the guide pin (18), the compression spring is supported on an end face of the sleeve (26). 4. Antriebsvorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Pleuel (25) an seiner Anlenkstelle am Zapfen (30) die Antriebsstange (35) umgreift, während der Zapfen (30) über beide Seiten des Endes des Pleuels (25) verlängert ist und mit seinen Enden in die Kulisse bildende Schlitze (31, 32) eingreift,
die in gegenüberliegenden Wänden (15, 16) des Gehäuses (11) der Antriebsvorrichtung ausgebildet sind.4. Drive device according to claim 1, characterized in that the connecting rod (25) at its articulation point on the pin (30) engages around the drive rod (35), while the pin (30) is extended over both sides of the end of the connecting rod (25) and engages with its ends into slots (31, 32) forming the backdrop,
which are formed in opposite walls (15, 16) of the housing (11) of the drive device. 5. Antriebsvorrichtung nach den Patentansprüchen 2 und 5, dadurch gekennzeichnet, dass die Führungen für die Enden des Führungsstiftes (18) geradlinige Schlitze (19, 20)sind, die in denselben Wänden (15, 16) wie die die Kulisse bildenden Schlitze (31, 32) ausgebildet sind.5. Drive device according to claims 2 and 5, characterized in that the guides for the ends of the guide pin (18) are rectilinear slots (19, 20) in the same walls (15, 16) as the backdrop forming slots (31, 32) are formed. 6. Antriebsvorrichtung nach einem der Patentansprüche 1 - 5, dadurch gekennzeichnet, dass die Druckfeder eine den Pleuel (25) umgebende Schraubenfeder (37) oder ein Tellerfederpaket ist.6. Drive device according to one of the claims 1-5, characterized in that the compression spring is a connecting rod (25) surrounding coil spring (37) or a plate spring assembly. 7. Antriebsvorrichtung nach einem der Patentansprüche 1 - 6, dadurch gekennzeichnet, dass die Kulisse (31, 32) derart geformt ist, dass die Druckfeder (37) vor Erreichen der Einschaltstellung stärker gespannt ist als in Einschaltstellung.7. Drive device according to one of claims 1 - 6, characterized in that the link (31, 32) is shaped such that the compression spring (37) is more tensioned before reaching the switch-on position than in the switch-on position.
EP85103785A 1984-08-31 1985-03-29 Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch Expired - Lifetime EP0172986B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103785T ATE59496T1 (en) 1984-08-31 1985-03-29 DRIVING DEVICE FOR AN ELECTRIC SWITCH WITH PRESSURE CONTACTS, IN PARTICULAR FOR A VACUUM SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4167/84 1984-08-31
CH416784 1984-08-31

Publications (3)

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EP0172986A2 true EP0172986A2 (en) 1986-03-05
EP0172986A3 EP0172986A3 (en) 1988-07-27
EP0172986B1 EP0172986B1 (en) 1990-12-27

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ID=4271053

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Application Number Title Priority Date Filing Date
EP85103785A Expired - Lifetime EP0172986B1 (en) 1984-08-31 1985-03-29 Operating device for an electrical switch with pressure contacts, particularly for a vacuum switch

Country Status (4)

Country Link
US (1) US4654494A (en)
EP (1) EP0172986B1 (en)
AT (1) ATE59496T1 (en)
DE (1) DE3581142D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726739A1 (en) * 1987-08-07 1988-03-03 Slamecka Ernst Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement
WO1992018997A1 (en) * 1991-04-09 1992-10-29 Elin Energieversorgung Gesellschaft M.B.H. Drive for a power switch pole
WO1993007634A1 (en) * 1991-09-30 1993-04-15 Siemens Aktiengesellschaft Vacuum switch with a drive device and a pole operating unit
WO1993007635A1 (en) * 1991-09-30 1993-04-15 Siemens Aktiengesellschaft Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube
DE19852530C1 (en) * 1998-11-06 2000-06-21 Siemens Ag High voltage vacuum switch
CN102522255A (en) * 2011-11-27 2012-06-27 天水长城开关厂有限公司 Contact spring of vacuum circuit breaker outside air chamber and straightening device

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* Cited by examiner, † Cited by third party
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GB9005921D0 (en) * 1990-03-16 1990-05-09 Apt Controls Ltd Traffic control barrier
JPH088032B2 (en) * 1990-06-26 1996-01-29 株式会社日立製作所 Gas circuit breaker
JPH04162321A (en) * 1990-10-25 1992-06-05 Fuji Electric Co Ltd Driving device for circuit breaker
FR2683940B1 (en) * 1991-11-20 1993-12-31 Gec Alsthom Sa MEDIUM VOLTAGE CIRCUIT BREAKER FOR INDOOR OR OUTDOOR USE.
FR2683939B1 (en) * 1991-11-20 1993-12-31 Gec Alsthom Sa MEDIUM VOLTAGE SELF-DISCONNECTING CIRCUIT BREAKER AND APPLICATION TO A CELL AND A MEDIUM VOLTAGE STATION.
US5436414A (en) * 1993-07-16 1995-07-25 Eaton Corporation Drive mechanism for circuit interrupters
DE19508770C1 (en) * 1995-03-01 1996-08-22 Siemens Ag Storage drive for a high-voltage circuit breaker pole filled with insulating gas
US6028279A (en) * 1998-02-27 2000-02-22 Korry Electronics Co. Lighted push button switch
FR2836277B1 (en) * 2002-02-19 2004-04-16 Alstom SPRING DRIVE MECHANISM FOR RECLINKED MOTION CIRCUIT BREAKER
US6770832B2 (en) * 2002-12-19 2004-08-03 Eaton Corporation Vacuum electrical interrupter with pull-to-close mechanism
CN103887108B (en) * 2014-01-26 2016-08-17 西安交通大学 A kind of high-pressure vacuum breaker contact spring actuating device of high reliability
US11069495B2 (en) * 2019-01-25 2021-07-20 Eaton Intelligent Power Limited Vacuum switching apparatus and drive mechanism therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE578730C (en) * 1930-03-25 1933-06-16 Aeg Cam switch
US4225765A (en) * 1979-02-28 1980-09-30 Westinghouse Electric Corp. Switch structure
DE8109229U1 (en) * 1981-03-28 1981-08-06 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Drive device
DE2739811C2 (en) * 1977-09-03 1982-05-13 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Electrical switching device with at least one switch designed as a vacuum interrupter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3147016C2 (en) * 1981-11-27 1986-10-23 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen High voltage switch
DE3414016A1 (en) * 1984-04-12 1985-10-17 Siemens AG, 1000 Berlin und 8000 München VACUUM SWITCHING DEVICE WITH A DRIVE DEVICE AND WITH A SPRING BASED ON THE MOVABLE CONNECTING PIN OF THE SWITCH TUBES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE578730C (en) * 1930-03-25 1933-06-16 Aeg Cam switch
DE2739811C2 (en) * 1977-09-03 1982-05-13 Wickmann-Werke Böblingen GmbH, 7030 Böblingen Electrical switching device with at least one switch designed as a vacuum interrupter
US4225765A (en) * 1979-02-28 1980-09-30 Westinghouse Electric Corp. Switch structure
DE8109229U1 (en) * 1981-03-28 1981-08-06 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Drive device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726739A1 (en) * 1987-08-07 1988-03-03 Slamecka Ernst Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement
WO1992018997A1 (en) * 1991-04-09 1992-10-29 Elin Energieversorgung Gesellschaft M.B.H. Drive for a power switch pole
WO1993007634A1 (en) * 1991-09-30 1993-04-15 Siemens Aktiengesellschaft Vacuum switch with a drive device and a pole operating unit
WO1993007635A1 (en) * 1991-09-30 1993-04-15 Siemens Aktiengesellschaft Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube
US5512724A (en) * 1991-09-30 1996-04-30 Siemens Aktiengesellschaft Vacuum switch with a drive device and pole operating unit
US5523536A (en) * 1991-09-30 1996-06-04 Siemens Aktiengesellschaft Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube
DE19852530C1 (en) * 1998-11-06 2000-06-21 Siemens Ag High voltage vacuum switch
CN102522255A (en) * 2011-11-27 2012-06-27 天水长城开关厂有限公司 Contact spring of vacuum circuit breaker outside air chamber and straightening device

Also Published As

Publication number Publication date
EP0172986B1 (en) 1990-12-27
ATE59496T1 (en) 1991-01-15
US4654494A (en) 1987-03-31
DE3581142D1 (en) 1991-02-07
EP0172986A3 (en) 1988-07-27

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