EP2559042A1 - Mechanical switch contact - Google Patents

Mechanical switch contact

Info

Publication number
EP2559042A1
EP2559042A1 EP11710116A EP11710116A EP2559042A1 EP 2559042 A1 EP2559042 A1 EP 2559042A1 EP 11710116 A EP11710116 A EP 11710116A EP 11710116 A EP11710116 A EP 11710116A EP 2559042 A1 EP2559042 A1 EP 2559042A1
Authority
EP
European Patent Office
Prior art keywords
contact
mechanical
electrically conductive
switching
contact finger
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
EP11710116A
Other languages
German (de)
French (fr)
Other versions
EP2559042B1 (en
Inventor
Klaus HÖPFL
Silke Wrede
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.)
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2559042A1 publication Critical patent/EP2559042A1/en
Application granted granted Critical
Publication of EP2559042B1 publication Critical patent/EP2559042B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
    • 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
    • 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
    • H01H9/0005—Tap change devices
    • H01H9/0016—Contact arrangements for tap changers
    • 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
    • H01H9/0005—Tap change devices
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing
    • 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
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/02—Interspersed fingers

Definitions

  • the present invention relates to a mechanical switching contact for switching or activation or for the separation of an electrical contact, in particular in a diverter switch of a tap changer with the features of the independent claim.
  • Known diverter switch for tap changers of control transformers usually have a so-called. Resistance Quick changeover, the switching contact shafts are controlled by a cam gear, which in turn is driven by a power storage. Here, the cam moves in an oscillating
  • DE 100 50 821 C1 discloses a mechanical switching contact for double-pole interruption for a tap changer.
  • the switching contact has a Isolierstoffdoi, are arranged on the fixed contacts, which are formed as spherically shaped contact areas.
  • a contact carrier is further rotatably mounted, which is in communication with a pivotable about a certain angle arm. At the free end of the swivel arm is a
  • Attached contact piece which in turn has at its two ends contact rollers. These contact rollers make it possible to connect the fixed contacts. Depending on the position of the swivel arm, the contact rollers strike the spherical surface in each case against oppositely disposed fixed contacts and in this way produce electrical contact connections in each case.
  • On-load tap-changer is known from WO 2007/042088 A1.
  • this mechanical switching contact has an insulating material on which fixed, connectable contacts are arranged.
  • a shift lever is rotatable on the insulating carrier mounted, which has at one of its two free ends a pivoting arm and at the other free end an actuating contour.
  • the shift lever is pivotable upon application of force to the operating contour of one of its two stationary states in the other stationary state.
  • On Isolierstoffong a pivotable about a separate bearing contact housing is additionally mounted, which carries two parallel, electrically interconnected contact fingers, which surround the respectively connected fixed contacts on both sides.
  • the contact housing is connected to the shift lever in a mechanical connection and is actuated by this.
  • the shift lever may further comprise a driver which engages positively in a driving opening of the contact housing.
  • One of the two fixed contacts can optionally be designed as a contact rail on which the contact fingers slide during movements of the contact housing.
  • the actuating mechanisms for known mechanical switching contacts for switching in on-load tap-changers have in common that switching takes place between two end positions, so that oscillating switching movements are required.
  • WO 89/08924 A discloses a spring-jump drive for diverter switch of tap changers whose memory spring is tensioned by a drive whose shaft rotates either clockwise or counterclockwise, one of the
  • Memory spring during the switching operation driven element for contact movement performs a rotational movement.
  • the element for contact movement may be, for example, a cam or a link control.
  • the accumulator spring and the driven element are connected to a coupling element which is rotatable only in one direction, regardless of the direction of rotation of the drive.
  • This known spring jump drive is used for contact sequence control and should be particularly suitable for thyristor diverter switch.
  • An object of the present invention is to propose a reliable mechanical switching contact, which allows a mechanically and electrically secure contact between two end positions and regardless of a direction of rotation of an actuating shaft. This object of the invention is with the subject matter of the independent
  • On-load tap-changer of a tapped transformer can be used.
  • the mechanical switching contact has at least two independently movable, in each case pivotable between two end positions, electrically interconnected contacts or contact assemblies or Maisfingerwee, which are operatively connected via multi-lever joints with a rotatable switching shaft, the circulating guide slots for actuating the multi-lever joints and coupled thereto Deflection of the contacts or contact assemblies has.
  • This mechanical switching contact is designed as a disconnector or switch and is used for reliable and mechanically and electrically highly resilient switching, eg. In a tapped transformer.
  • the two pivotable contacts or contact finger packages are preferably mounted on an electrically conductive common axis, which is arranged parallel to the rotatable switching shaft.
  • the contacts or contact finger pacts may also be stored deviating therefrom, for example perpendicular to the axis.
  • Each of the two pivotable contact assemblies or contact finger packets is still a separate mechanical, electrically conductive, trained as a contact stop for forming the respective switched end positions of the circuit breaker, disconnector or switch assigned.
  • the mechanical switching contact according to the invention provides a reliable working electrical isolation or changeover switch whose shift fingers are forcibly driven via a rotating cam slot or disc and therefore can be controlled very accurately and reliably, according to the curve design regardless of the direction of rotation of the cam or disc.
  • it is particularly advantageous if no oscillating drive, but a rotating, possibly even direction-independent actuating movement for the disconnector or switch can be used, as for example.
  • tap changers or load switches o. The like. In the high current range is the case ,
  • the first contact assembly or the first contact finger package in a first end position of the mechanical switching contact its electrically conductive mechanical stop abuts and establishes an electrically conductive connection between the electrically conductive common axis and the stop, while the second contact assembly or the second
  • the two contact finger packages are optionally mechanically coupled together.
  • the Kunststofffingere are slightly delayed against each delayed and correspondingly switchable, so that during the short switching time first the conductive contact of a contact finger package is closed before the conductive contact of the other contact finger packet open and the individual Switching process is completed.
  • the contact finger packages or contact assemblies are actuated independently of the direction of rotation of the switching shaft, so that they each have the same or changing during repeated rotational movements
  • Guide slots are preferably each rotatable with the shift shaft
  • Movement or guide slots can be deflected when the discs are rotated with the stem.
  • the bolt is preferably between the frame or
  • Lever movement can be achieved, which is to pivot the respective
  • the two contact finger packages or contact assemblies can be repeatedly operated in the aforementioned manner as a disconnector, disconnector or switch without the direction of rotation of the switching shaft is changed.
  • the shift shaft may, for example, be coupled to an existing rotary drive via a step transmission, so that a fixed phase assignment can be ensured.
  • Switching ramps can be achieved both in the opening path of the contacts and in terms of the angle of rotation of the drive shaft.
  • An unspecified variant here also sees a three-phase
  • Fig. 1 shows a schematic perspective view of an embodiment of a mechanical switching contact according to the invention.
  • Fig. 2 shows a further illustration of the mechanical switching contact according to
  • FIG. 3 shows another view of the switching contact according to FIG. 2.
  • FIG. 4 shows a third view of the switching contact according to FIG. 2.
  • FIG. 1 The schematic representations of Figures 1 to 4 show a mechanical switching contact 10 for switching, which can be used in particular in an on-load tap changer of a tapped transformer.
  • the illustrated with reference to an embodiment mechanical switching contact 10 has two pivotable between two end positions, electrically conductively interconnected contact fingers 12 and 14, which are each operatively connected via multi-lever joints 16 with a rotatable switching shaft 18.
  • cams 22a, 22b, 22c are arranged, each serving for guiding and movement of the multi-lever joints 16.
  • the cams 22a, 22b, 22c each have circumferential guide slots 24, which are used for the articulation of
  • Multi-lever joints 16 and coupled to the deflection of the contact fingers 12 and 14 are used.
  • the mechanical switching contact 10 shown is designed as a changeover switch or as an open switch, which is why the two pivotable contact fingers 12 and 14 are electrically connected and mounted on the common axis 20.
  • the axis 20 is arranged parallel to the rotatable switching shaft 18.
  • Each of the two pivotable contact fingers 12 and 14 is also assigned a separate mechanical, electrically conductive stop 26 and 28 to form the respective switched end positions of the switch.
  • the upper contact finger 12 has a first stop 26 on which it bears in a first switching position electrically conductive, so that an electrically conductive connection between the axis 20 and the first stop 26 is made.
  • the lower contact finger 14 is associated with the second stop 28, to which it bears electrically conductively in a second switching position, so that an electrically conductive connection between the axis 20 and the second stop 28 is made.
  • the first contact finger 12 is lifted from the first stop 26, while the second contact finger 14 rests against the second stop 28.
  • a switching process (not shown here), however, both are briefly present
  • the mounting frame 30 shown in Figures 2 to 4 serve to anchor and support the axle 20 and the stops 26 and 28 and the associated or mounted thereon movable parts.
  • FIG. 4 the movements of the multi-lever joints 16, which are formed from a plurality of interconnected levers 32 and 34, are particularly illustrated.
  • a one-sided frame or housing fixedly mounted long lever 32 of each multi-lever joint 6 has a sliding in the guide slot 24 bolt 36 which is located closer to its free end 38 than at its pivotal anchoring on
  • a short lever 34 is mounted on an axle 42, which engages pivotally on the contact finger 14 at its other end.
  • the bolt 36 is so between the frame or
  • the upper contact finger 12 is in a corresponding manner with a
  • the mechanical switching contact 10 provides a reliable mechanical changeover switch whose
  • Shifting fingers 12, 14 are positively driven over the rotating shaft 18 and the cam plates 22 and therefore can be controlled very accurately and reliably, regardless of the direction of rotation of the shaft.
  • the two contact fingers 12 and 4 can be repeatedly operated in the manner shown as an enable switch, disconnector or switch without the direction of rotation of the switching shaft 18 is changed.
  • the mechanical changeover switch according to the invention can thus continue to switch in one direction or switch back and forth several times.
  • the switching shaft 18 may, for example, be coupled via a step transmission to an existing rotary drive, so that a fixed phase assignment can be ensured.

Abstract

The invention relates to a mechanical switch contact (10) for releasing, disconnecting, or switching over, in particular for an on-load tap changer of a step transformer, comprising at least two contact fingers or contact finger blocks (12, 14), which can each be pivoted between two end positions and which are connected to each other in an electrically conductive manner and which are each operatively connected to a rotatable switching shaft (18) by means of multi-arm joints (16), said switching shaft having all-around guide slots (24) for actuating the multi-arm joints (16) and for thereby deflecting the contact fingers or contact finger blocks (12, 14).

Description

M e c h a n i s c h e r S c h a l tko n ta kt  M e c h a n c e r S c h a l tko n ta kt
Die vorliegende Erfindung betrifft einen mechanischen Schaltkontakt zur Um- oder Freischaltung bzw. zur Trennung eines elektrischen Kontakts, insbesondere in einem Lastumschalter eines Stufenschalters mit den Merkmalen des unabhängigen Patentanspruchs. The present invention relates to a mechanical switching contact for switching or activation or for the separation of an electrical contact, in particular in a diverter switch of a tap changer with the features of the independent claim.
Bekannte Lastumschalter für Stufenschalter von Regeltransformatoren besitzen meist eine sog. Widerstandsschnellumschaltung, deren Schaltkontaktwellen von einem Kurvenscheibengetriebe gesteuert werden, das wiederum von einem Kraftspeicher angetrieben wird. Hierbei bewegt sich die Kurvenscheibe in einer oszillierenden Known diverter switch for tap changers of control transformers usually have a so-called. Resistance Quick changeover, the switching contact shafts are controlled by a cam gear, which in turn is driven by a power storage. Here, the cam moves in an oscillating
Bewegung zwischen zwei Endlagen, und zwar unabhängig von der jeweiligen Movement between two end positions, regardless of their respective end positions
Bewegungsrichtung des Wählers. Dies bedeutet, dass die Kontakte, welche bei einer ersten Drehrichtung der Kurvenscheibe als erste geschlossen haben, bei einer Direction of movement of the voter. This means that the contacts which have first closed in a first direction of rotation of the cam at a
Rückbewegung als erste öffnen. Die Kontakte, welche bei der gleichen Drehrichtung der Kurvenscheibe zuerst geöffnet haben, schließen bei der Rückbewegung zuletzt. Open backward movement first. The contacts, which have opened in the same direction of rotation of the cam first, close last in the return movement.
Die DE 100 50 821 C1 offenbart einen mechanischen Schaltkontakt zur doppelpoligen Unterbrechung für einen Stufenschalter. Der Schaltkontakt weist einen Isolierstoffträger auf, an dem feste Kontakte angeordnet sind, die als ballig geformte Kontaktbereiche ausgebildet sind. Am Isolierstoffträger ist weiterhin ein Kontaktträger drehbar gelagert, der mit einem um einen bestimmten Winkel verschwenkbaren Schwenkarm in Verbindung steht. Am freien Ende des Schwenkarmes ist ein DE 100 50 821 C1 discloses a mechanical switching contact for double-pole interruption for a tap changer. The switching contact has a Isolierstoffträger, are arranged on the fixed contacts, which are formed as spherically shaped contact areas. On the insulating carrier, a contact carrier is further rotatably mounted, which is in communication with a pivotable about a certain angle arm. At the free end of the swivel arm is a
Kontaktstück befestigt, das seinerseits an seinen beiden Enden Kontaktrollen aufweist. Durch diese Kontaktrollen sind die festen Kontakte wahlweise beschaltbar. Je nach Lage des Schwenkarmes treffen die Kontaktrollen auf die ballige Oberfläche jeweils gegenüber liegend angeordneter fester Kontakte und stellen auf diese Weise jeweils elektrische Kontaktverbindungen her.  Attached contact piece, which in turn has at its two ends contact rollers. These contact rollers make it possible to connect the fixed contacts. Depending on the position of the swivel arm, the contact rollers strike the spherical surface in each case against oppositely disposed fixed contacts and in this way produce electrical contact connections in each case.
Ein weiterer mechanischer Schaltkontakt zur Umschaltung bei einem Another mechanical switching contact for switching in a
Laststufenschalter ist aus der WO 2007/042088 A1 bekannt. Auch dieser mechanische Schaltkontakt weist einen Isolierstoffträger auf, an dem feste, beschaltbare Kontakte angeordnet sind. Weiterhin ist an dem Isolierstoffträger ein Schalthebel drehbar gelagert, der an einem seiner beiden freien Enden einen Schwenkarm und am anderen freien Ende eine Betätigungskontur aufweist. Der Schalthebel ist bei Krafteinwirkung auf die Betätigungskontur sprungartig von einem seiner beiden stationären Zustände in den jeweils anderen stationären Zustand verschwenkbar. Am Isolierstoffträger ist zusätzlich ein um ein separates Lager verschwenkbares Kontaktgehäuse gelagert, das zwei parallele, elektrisch miteinander verbundene Kontaktfinger trägt, welche die jeweils beschalteten festen Kontakte beidseitig umschließen. Das Kontaktgehäuse steht mit dem Schalthebel in einer mechanischen Verbindung und ist von diesem betätigbar. Der Schalthebel kann weiterhin einen Mitnehmer aufweisen, der formschlüssig in eine Mitnehmeröffnung des Kontaktgehäuses eingreift. Einer der beiden festen Kontakte kann wahlweise als Kontaktschiene ausgebildet sein, auf der die Kontaktfinger bei Bewegungen des Kontaktgehäuses gleiten. On-load tap-changer is known from WO 2007/042088 A1. Also, this mechanical switching contact has an insulating material on which fixed, connectable contacts are arranged. Furthermore, a shift lever is rotatable on the insulating carrier mounted, which has at one of its two free ends a pivoting arm and at the other free end an actuating contour. The shift lever is pivotable upon application of force to the operating contour of one of its two stationary states in the other stationary state. On Isolierstoffträger a pivotable about a separate bearing contact housing is additionally mounted, which carries two parallel, electrically interconnected contact fingers, which surround the respectively connected fixed contacts on both sides. The contact housing is connected to the shift lever in a mechanical connection and is actuated by this. The shift lever may further comprise a driver which engages positively in a driving opening of the contact housing. One of the two fixed contacts can optionally be designed as a contact rail on which the contact fingers slide during movements of the contact housing.
Den Betätigungsmechanismen für bekannte mechanische Schaltkontakte zur Umschaltung bei Laststufenschaltern ist gemeinsam, dass die Umschaltung zwischen zwei Endlagen erfolgt, so dass oszillierende Schaltbewegungen erforderlich sind. The actuating mechanisms for known mechanical switching contacts for switching in on-load tap-changers have in common that switching takes place between two end positions, so that oscillating switching movements are required.
Die WO 89/08924 A offenbart einen Federsprungantrieb für Lastumschalter von Stufenschaltern, deren Speicherfeder von einem Antrieb spannbar ist, dessen Welle sich entweder im oder gegen den Uhrzeigersinn dreht, wobei ein von der WO 89/08924 A discloses a spring-jump drive for diverter switch of tap changers whose memory spring is tensioned by a drive whose shaft rotates either clockwise or counterclockwise, one of the
Speicherfeder beim Umschaltvorgang angetriebenes Element zur Kontaktbewegung eine Drehbewegung ausführt. Das Element zur Kontaktbewegung kann bspw. eine Nockenscheibe oder eine Kulissensteuerung sein. Die Speicherfeder und das angetriebene Element sind mit einem Koppelelement verbunden, welches unabhängig von der Drehrichtung des Antriebes nur in eine Richtung drehbar ist. Dieser bekannte Federsprungantrieb dient zur Kontaktfolgesteuerung und soll sich besonders für Thyristor-Lastumschalter eignen.  Memory spring during the switching operation driven element for contact movement performs a rotational movement. The element for contact movement may be, for example, a cam or a link control. The accumulator spring and the driven element are connected to a coupling element which is rotatable only in one direction, regardless of the direction of rotation of the drive. This known spring jump drive is used for contact sequence control and should be particularly suitable for thyristor diverter switch.
Ein Ziel der vorliegenden Erfindung besteht darin, einen zuverlässig arbeitenden mechanischen Schaltkontakt vorzuschlagen, der eine mechanisch und elektrisch sichere Kontaktgabe zwischen zwei Endlagen und unabhängig von einer Drehrichtung einer Betätigungswelle gestattet. Dieses Ziel der Erfindung wird mit dem Gegenstand des unabhängigenAn object of the present invention is to propose a reliable mechanical switching contact, which allows a mechanically and electrically secure contact between two end positions and regardless of a direction of rotation of an actuating shaft. This object of the invention is with the subject matter of the independent
Patentanspruchs erreicht. Merkmale vorteilhafter Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen. Zur Erreichung des Ziels schlägt die vorliegende Erfindung einen mechanischen Schaltkontakt zur Kontaktgabe, Patent claim achieved. Features of advantageous developments of the invention result from the dependent claims. To achieve the object, the present invention proposes a mechanical switching contact for making contact,
Kontakttrennung bzw. Umschaltung vor, der insbesondere bei einem Contact separation or switching before, in particular at a
Laststufenschalter eines Stufentransformators zum Einsatz kommen kann. Der mechanische Schaltkontakt weist wenigstens zwei unabhängig voneinander bewegliche, jeweils zwischen zwei Endlagen verschwenkbare, elektrisch leitend miteinander verbundene Kontakte oder Kontaktbaugruppen oder Kontaktfingerpakete auf, die jeweils über Mehrhebelgelenke mit einer drehbaren Schaltwelle wirkverbunden sind, die über umlaufende Führungskulissen zur Betätigung der Mehrhebelgelenke und zur damit gekoppelten Auslenkung der Kontakte oder Kontaktbaugruppen verfügt. On-load tap-changer of a tapped transformer can be used. The mechanical switching contact has at least two independently movable, in each case pivotable between two end positions, electrically interconnected contacts or contact assemblies or Kontaktfingerpakete, which are operatively connected via multi-lever joints with a rotatable switching shaft, the circulating guide slots for actuating the multi-lever joints and coupled thereto Deflection of the contacts or contact assemblies has.
Dieser erfindungsgemäße mechanische Schaltkontakt ist als Freischalter oder Umschalter ausgebildet und dient zur zuverlässigen sowie mechanisch und elektrisch hoch belastbaren Umschaltung, bspw. bei einem Stufentransformator. Die beiden verschwenkbaren Kontakte oder Kontaktfingerpakete sind dabei vorzugsweise auf einer elektrisch leitenden gemeinsamen Achse gelagert, die parallel zur drehbaren Schaltwelle angeordnet ist. Wahlweise können die Kontakte oder Kontaktfingerpakte jedoch auch abweichend davon gelagert sein, bspw. senkrecht zur Achse. Jedem der beiden verschwenkbaren Kontaktbaugruppen oder Kontaktfingerpakete ist weiterhin ein separater mechanischer, elektrisch leitender, als Kontakt ausgebildeter Anschlag zur Bildung der jeweils geschalteten Endlagen des Freischalters, Trennschalters oder Umschalters zugeordnet. This mechanical switching contact according to the invention is designed as a disconnector or switch and is used for reliable and mechanically and electrically highly resilient switching, eg. In a tapped transformer. The two pivotable contacts or contact finger packages are preferably mounted on an electrically conductive common axis, which is arranged parallel to the rotatable switching shaft. Optionally, however, the contacts or contact finger pacts may also be stored deviating therefrom, for example perpendicular to the axis. Each of the two pivotable contact assemblies or contact finger packets is still a separate mechanical, electrically conductive, trained as a contact stop for forming the respective switched end positions of the circuit breaker, disconnector or switch assigned.
Der erfindungsgemäße mechanische Schaltkontakt liefert einen zuverlässig arbeitenden elektrischen Trenn- oder Umschalter, dessen Schaltfinger über eine rotierende Kurvenkulisse oder Scheibe zwangsgeführt angetrieben sind und deshalb sehr genau und zuverlässig gesteuert werden können, und zwar entsprechend der Kurvengestaltung unabhängig von der Drehrichtung der Kurvenkulisse oder Scheibe. In vielen Einsatzfällen ist es besonders vorteilhaft, wenn kein oszillierender Antrieb, sondern eine rotierende, ggf. sogar richtungsunabhängige Betätigungsbewegung für den Trenn- oder Umschalter genutzt werden kann, wie dies bspw. bei bekannten Stufenschaltern oder Lastschaltern o. dgl. im Starkstrombereich der Fall ist. The mechanical switching contact according to the invention provides a reliable working electrical isolation or changeover switch whose shift fingers are forcibly driven via a rotating cam slot or disc and therefore can be controlled very accurately and reliably, according to the curve design regardless of the direction of rotation of the cam or disc. In many applications, it is particularly advantageous if no oscillating drive, but a rotating, possibly even direction-independent actuating movement for the disconnector or switch can be used, as for example. In known tap changers or load switches o. The like. In the high current range is the case ,
Weiterhin kann vorgesehen sein, dass die erste Kontaktbaugruppe oder das erste Kontaktfingerpaket in einer ersten Endlage des mechanischen Schaltkontakts an seinem elektrisch leitenden mechanischen Anschlag anliegt und eine elektrisch leitende Verbindung zwischen der elektrisch leitenden gemeinsamen Achse und dem Anschlag herstellt, während die zweite Kontaktbaugruppe oder das zweite Furthermore, it can be provided that the first contact assembly or the first contact finger package in a first end position of the mechanical switching contact its electrically conductive mechanical stop abuts and establishes an electrically conductive connection between the electrically conductive common axis and the stop, while the second contact assembly or the second
Kontaktfingerpaket von dem ihm zugeordneten elektrisch leitenden mechanischen Anschlag abgehoben ist. Durch unabhängiges Verschwenken der beiden Contact finger packet is lifted from its associated electrically conductive mechanical stop. By independent pivoting of the two
Kontaktfingerpakete kann sichergestellt werden, dass eine Umschaltwirkung ohne gleichzeitige Kontaktierung beider zu schaltenden Anschlüsse ermöglicht ist. So ist das erste Kontaktfingerpaket in der zweiten Endlage des mechanischen Schaltkontakts von dem ihm zugeordneten elektrisch leitenden mechanischen Anschlag abgehoben, während das zweite Kontaktfingerpaket an dem ihm zugeordneten elektrisch leitenden mechanischen Anschlag anliegt und eine elektrisch leitende Verbindung zwischen der elektrisch leitenden gemeinsamen Achse und dem Anschlag herstellt.  Contact finger packets can be ensured that a switching effect without simultaneous contacting of both to be switched connections is possible. Thus, the first contact finger packet in the second end position of the mechanical switching contact is lifted from the associated electrically conductive mechanical stop, while the second contact finger packet rests against the associated electrically conductive mechanical stop and establishes an electrically conductive connection between the electrically conductive common axis and the stop ,
Durch die Schaltwelle und die drehfest mit dieser verbundenen By the switching shaft and the rotatably connected thereto
scheibenförmigen Führungskulissen sowie die zwischen den Kontaktfingerpaketen und den Führungskulissen angeordneten Mehrhebelgelenke werden die disc-shaped guide slots and arranged between the contact finger packages and the guide slots multi-lever joints are the
Kontaktfingerpakete in der gewünschten Weise zwischen ihren jeweiligen Endlagen verschwenkt. Somit sind die beiden Kontaktfingerpakete wahlweise mechanisch miteinander gekoppelt. Je nach Kontur der in den scheibenförmigen Führungskulissen oder Kurvenscheiben angeordneten Bewegungsbahnen sind die Kontaktfingerpakete geringfügig gegeneinander verzögert verschwenkbar und entsprechend schaltbar, so dass während der kurzen Schaltzeit zunächst die leitende Kontaktierung des einen Kontaktfingerpakets geschlossen wird, bevor die leitende Kontaktierung des anderen Kontaktfingerpakets geöffnet und der einzelne Schaltvorgang abgeschlossen wird.  Contact finger packages pivoted in the desired manner between their respective end positions. Thus, the two contact finger packages are optionally mechanically coupled together. Depending on the contour of the arranged in the disc-shaped guide slots or cams trajectories the Kontaktfingerpakete are slightly delayed against each delayed and correspondingly switchable, so that during the short switching time first the conductive contact of a contact finger package is closed before the conductive contact of the other contact finger packet open and the individual Switching process is completed.
In der erwähnten Weise sind die Kontaktfingerpakete oder Kontaktbaugruppen unabhängig von der Drehrichtung der Schaltwelie betätigbar, so dass diese bei wiederholten Drehbewegungen jeweils gleichartige oder wechselnde In the manner mentioned, the contact finger packages or contact assemblies are actuated independently of the direction of rotation of the switching shaft, so that they each have the same or changing during repeated rotational movements
Schwenkbewegungen der beiden Kontaktfingerpakete auslösen kann. Die  Can cause pivoting movements of the two contact finger packets. The
Führungskulissen sind vorzugsweise jeweils in drehfest mit der Schaltwelle  Guide slots are preferably each rotatable with the shift shaft
verbundenen Scheiben angeordnet und führen jeweils einen Betätigungsbolzen jedes der Mehrhebelgelenke, wobei der Bolzen durch die entsprechend geformten  connected discs and each guide an actuating pin of each of the multi-lever joints, wherein the bolt through the correspondingly shaped
Bewegungs- bzw. Führungskulissen ausgelenkt werden kann, wenn die Scheiben mit der Schaltwelle gedreht werden. Gemäß einer Ausführungsvariante der Erfindung kann ein einseitig rahmen- oder gehäusefest gelagerter erster Hebel jedes Mehrhebelgelenks einen in der Führungskulisse gleitenden Bolzen aufweisen und an seinem freien Ende mit einem zweiten Hebel gekoppelt sein, der schwenkbar am Kontaktfinger angreift. Der Bolzen ist vorzugsweise zwischen der rahmen- bzw. Movement or guide slots can be deflected when the discs are rotated with the stem. According to an embodiment of the invention can a one-sided frame or fixed to the housing mounted first lever each multi-lever joint having a sliding in the guide slot bolt and be coupled at its free end with a second lever which pivotally engages the contact finger. The bolt is preferably between the frame or
gehäusefesten Lagerung und dem freien Ende des ersten Hebels angeordnet, so dass bereits bei geringen Auslenkungen der Führungsbahn eine ausreichende arranged housing-free storage and the free end of the first lever, so that even at low deflections of the guideway sufficient
Hebelbewegung erreicht werden kann, die zur Verschwenkung des jeweiligen Lever movement can be achieved, which is to pivot the respective
Kontaktfingerpakets ausreicht. Contact finger package is sufficient.
Die beiden Kontaktfingerpakete oder Kontaktbaugruppen können in der erwähnten Weise mehrfach als Trennschalter, Freischalter oder Umschalter betätigt werden, ohne dass die Drehrichtung der Schaltwelle geändert wird. Der The two contact finger packages or contact assemblies can be repeatedly operated in the aforementioned manner as a disconnector, disconnector or switch without the direction of rotation of the switching shaft is changed. Of the
erfindungsgemäße mechanische Schalter bzw. Umschalter kann somit mehrfach in einer Richtung weiterschalten. Die Schaltwelle kann bspw. über ein Schrittgetriebe an einen vorhandenen Drehantrieb gekoppelt sein, so dass eine feste Phasenzuordnung sichergestellt werden kann. Mechanical switch or switch according to the invention can thus continue to switch several times in one direction. The shift shaft may, for example, be coupled to an existing rotary drive via a step transmission, so that a fixed phase assignment can be ensured.
Es sei weiterhin betont, dass durch eine geeignete Gestaltung und Auslegung der Kurvenkulissen der Kurvenscheiben nahezu beliebige Schaltwinkel und It should also be emphasized that by a suitable design and interpretation of the cam sets of the cam almost any switching angle and
Schaltrampen erzielt werden können, sowohl beim Öffnungsweg der Kontakte als auch hinsichtlich des Drehwinkels der Antriebswelle. Eine hier nicht näher erläuterte Variante sieht zudem eine dreiphasige Switching ramps can be achieved both in the opening path of the contacts and in terms of the angle of rotation of the drive shaft. An unspecified variant here also sees a three-phase
Anordnung vor, die sich ebenfalls realisieren lässt. Bei einer solchen dreiphasigen Anordnung können jeweils mehrere Kontaktfingerpakete auf gemeinsamen  Arrangement before, which can also be realized. In such a three-phase arrangement, a plurality of contact finger packets can each be shared
Gelenkachsen gelagert sein, so dass sie sich die jeweiligen Gelenkachsen teilen.  Be mounted joint axes so that they share the respective joint axes.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Verwendung der nachfolgend beschriebenen Zeichnungen näher erläutert. The invention will be explained in more detail with reference to embodiments using the drawings described below.
Fig. 1 zeigt eine schematische Perspektivansicht einer Ausführungsvariante eines erfindungsgemäßen mechanischen Schaltkontaktes. Fig. 1 shows a schematic perspective view of an embodiment of a mechanical switching contact according to the invention.
Fig. 2 zeigt eine weitere Darstellung des mechanischen Schaltkontaktes gemäßFig. 2 shows a further illustration of the mechanical switching contact according to
Fig. 1. Fig. 3 zeigt eine andere Ansicht des Schaltkontaktes gemäß Fig. 2. Fig. 1. FIG. 3 shows another view of the switching contact according to FIG. 2.
Fig. 4 zeigt eine dritte Ansicht des Schaltkontaktes gemäß Fig. 2. 4 shows a third view of the switching contact according to FIG. 2.
Das nachfolgend beschriebene Ausführungsbeispiel ist nicht einschränkend zu verstehen, sondern dient zur Erläuterung der Funktion eines erfindungsgemäßen mechanischen Schaltkontaktes. Die schematischen Darstellungen der Figuren 1 bis 4 zeigen einen mechanischen Schaltkontakt 10 zur Umschaltung, der insbesondere bei einem Laststufenschalter eines Stufentransformators zum Einsatz kommen kann. Der anhand eines Ausführungsbeispiel dargestellte mechanische Schaltkontakt 10 weist zwei jeweils zwischen zwei Endlagen verschwenkbare, elektrisch leitend miteinander verbundene Kontaktfinger 12 und 14 auf, die jeweils über Mehrhebelgelenke 16 mit einer drehbaren Schaltwelle 18 wirkverbunden sind. An der Schaltwelle 18 sind oberhalb und unterhalb der schwenkbar an einer gemeinsamen, elektrisch leitenden Achse 20 gelagerten Kontaktfinger 12 und 14 sowie zwischen diesen mehrere Kurvenscheiben 22a, 22b, 22c angeordnet, die jeweils zur Führung und Bewegung der Mehrhebelgelenke 16 dienen. Zu diesem Zweck weisen die Kurvenscheiben 22a, 22b, 22c jeweils umlaufende Führungskulissen 24 auf, die zur Anlenkung der The embodiment described below is not intended to be limiting, but serves to explain the function of a mechanical switching contact according to the invention. The schematic representations of Figures 1 to 4 show a mechanical switching contact 10 for switching, which can be used in particular in an on-load tap changer of a tapped transformer. The illustrated with reference to an embodiment mechanical switching contact 10 has two pivotable between two end positions, electrically conductively interconnected contact fingers 12 and 14, which are each operatively connected via multi-lever joints 16 with a rotatable switching shaft 18. On the switching shaft 18 are above and below the pivotally mounted on a common, electrically conductive axis 20 mounted contact fingers 12 and 14 and between them a plurality of cams 22a, 22b, 22c arranged, each serving for guiding and movement of the multi-lever joints 16. For this purpose, the cams 22a, 22b, 22c each have circumferential guide slots 24, which are used for the articulation of
Mehrhebelgelenke 16 und zur damit gekoppelten Auslenkung der Kontaktfinger 12 und 14 dienen. Multi-lever joints 16 and coupled to the deflection of the contact fingers 12 and 14 are used.
Der gezeigte mechanische Schaltkontakt 10 ist als Umschalter bzw. als Freischalter ausgebildet, weshalb die beiden verschwenkbaren Kontaktfinger 12 und 14 elektrisch leitend verbunden und auf der gemeinsamen Achse 20 gelagert sind. Die Achse 20 ist parallel zur drehbaren Schaltwelle 18 angeordnet. Jedem der beiden verschwenkbaren Kontaktfinger 12 und 14 ist zudem ein separater mechanischer, elektrisch leitender Anschlag 26 und 28 zur Bildung der jeweils geschalteten Endlagen des Umschalters zugeordnet. So weist der obere Kontaktfinger 12 einen ersten Anschlag 26 auf, an dem er in einer ersten Schaltstellung elektrisch leitend anliegt, so dass eine elektrisch leitende Verbindung zwischen der Achse 20 und dem ersten Anschlag 26 hergestellt ist. Dem unteren Kontaktfinger 14 ist der zweite Anschlag 28 zugeordnet, an dem er in einer zweiten Schaltstellung elektrisch leitend anliegt, so dass eine elektrisch leitende Verbindung zwischen der Achse 20 und dem zweiten Anschlag 28 hergestellt ist. In der in den Figuren 1 bis 4 dargestellten zweiten Schaltstellung ist der erste Kontaktfinger 12 vom ersten Anschlag 26 abgehoben, während der zweite Kontaktfinger 14 am zweiten Anschlag 28 anliegt. Während eines (hier nicht dargestellten) Umschaltvorgangs liegen dagegen kurzzeitig beide The mechanical switching contact 10 shown is designed as a changeover switch or as an open switch, which is why the two pivotable contact fingers 12 and 14 are electrically connected and mounted on the common axis 20. The axis 20 is arranged parallel to the rotatable switching shaft 18. Each of the two pivotable contact fingers 12 and 14 is also assigned a separate mechanical, electrically conductive stop 26 and 28 to form the respective switched end positions of the switch. Thus, the upper contact finger 12 has a first stop 26 on which it bears in a first switching position electrically conductive, so that an electrically conductive connection between the axis 20 and the first stop 26 is made. The lower contact finger 14 is associated with the second stop 28, to which it bears electrically conductively in a second switching position, so that an electrically conductive connection between the axis 20 and the second stop 28 is made. In the second shown in Figures 1 to 4 Switching position, the first contact finger 12 is lifted from the first stop 26, while the second contact finger 14 rests against the second stop 28. During a switching process (not shown here), however, both are briefly present
Kontaktfinger 12 und 14 an ihren korrespondierenden Kontaktanschlägen 26 bzw. 28 an, so dass der Umschalter kurzzeitig beide Kontakte geschlossen hat. Contact fingers 12 and 14 at their corresponding contact stops 26 and 28, so that the switch has briefly closed both contacts.
Durch eine Drehung der Schaltwelle 18 in beliebige Richtung und die damit gekoppelte Drehung der Kurvenscheiben 22 und der darin angeordneten By a rotation of the switching shaft 18 in any direction and the rotation coupled therewith of the cam plates 22 and arranged therein
Führungskulissen 24 sowie durch die damit ausgelösten Schwenkbewegungen der zwischen den Kontaktfingern 12, 14 und den Führungskulissen 24 angeordneten Mehrhebelgelenke 16 werden die Kontaktfinger 12 und 14 in der gewünschten Weise zwischen ihren jeweiligen Endlagen verschwenkt. Die beiden Kontaktfinger 12 und 14 sind über die Führungskuiissen 24 mechanisch miteinander gekoppelt. Je nach Kontur der in den Kurvenscheiben 22 angeordneten Führungskulissen 24 und der dadurch ausgebildeten Bewegungsbahnen sind die Kontaktfinger 2 und 14 geringfügig gegeneinander verzögert verschwenkbar und entsprechend schaltbar, so dass während der kurzen Schaltzeit zunächst die leitende Kontaktierung des einen Guide slots 24 and the thus triggered pivoting movements of the arranged between the contact fingers 12, 14 and the guide slots 24 multi-lever joints 16, the contact fingers 12 and 14 are pivoted in the desired manner between their respective end positions. The two contact fingers 12 and 14 are coupled via the Führungskuiissen 24 mechanically. Depending on the contour of the arranged in the cam 22 guide slots 24 and the trajectories formed by the contact fingers 2 and 14 are slightly delayed against each delayed and correspondingly switchable, so that during the short switching time, first the conductive contacting of a
Kontaktfingers 2 geschlossen wird, bevor die leitende Kontaktierung des anderen Kontaktfingers 4 geöffnet und der einzelne Schaltvorgang abgeschlossen wird.  Contact finger 2 is closed before the conductive contact of the other contact finger 4 is opened and the individual switching operation is completed.
Die in den Figuren 2 bis 4 gezeigten Befestigungsrahmen 30 dienen zur Verankerung und Lagerung der Achse 20 und der Anschläge 26 und 28 sowie der damit verbundenen bzw. daran gelagerten beweglichen Teile. Anhand der Fig. 4 werden besonders die Bewegungen der Mehrhebelgelenke 16 verdeutlicht, die aus mehreren miteinander verbundenen Hebeln 32 und 34 gebildet sind. Ein einseitig rahmen- oder gehäusefest gelagerter langer Hebel 32 jedes Mehrhebelgelenks 6 weist einen in der Führungskulisse 24 gleitenden Bolzen 36 auf, der näher an seinem freien Ende 38 angeordnet ist als an seiner schwenkbaren Verankerung am The mounting frame 30 shown in Figures 2 to 4 serve to anchor and support the axle 20 and the stops 26 and 28 and the associated or mounted thereon movable parts. With reference to FIG. 4, the movements of the multi-lever joints 16, which are formed from a plurality of interconnected levers 32 and 34, are particularly illustrated. A one-sided frame or housing fixedly mounted long lever 32 of each multi-lever joint 6 has a sliding in the guide slot 24 bolt 36 which is located closer to its free end 38 than at its pivotal anchoring on
Befestigungsrahmen 30. Am freien Ende 38 des langen Hebels 32 ist über eine Achse 42 ein kurzer Hebel 34 gelagert, der an seinem anderen Ende schwenkbar am Kontaktfinger 14 angreift. Der Bolzen 36 ist derart zwischen der rahmen- bzw.  Mounting frame 30. At the free end 38 of the long lever 32, a short lever 34 is mounted on an axle 42, which engages pivotally on the contact finger 14 at its other end. The bolt 36 is so between the frame or
gehäusefesten Lagerung 40 und dem freien Ende 38 des langen Hebels 32 platziert, dass bereits bei geringen Auslenkungen der Führungsbahn 24 eine ausreichende Hebelbewegung erreicht werden kann, die zur Verschwenkung des Kontaktfingers 14 ausreicht. Der obere Kontaktfinger 12 ist in entsprechender Weise mit einem housing-fixed mounting 40 and the free end 38 of the long lever 32 placed that even at low deflections of the guideway 24 sufficient lever movement can be achieved, the pivoting of the contact finger 14th sufficient. The upper contact finger 12 is in a corresponding manner with a
gleichartig ausgebildeten und dimensionierten Mehrhebelgelenk 16 mit der ihm zugeordneten Führungsbahn 24 gekoppelt, so dass durch gleichartige similarly designed and dimensioned multi-lever joint 16 coupled to the associated track 24, so that by similar
Führungsbahnen 24, die in Drehrichtung gegeneinander versetzt sind, die Guideways 24, which are offset in the direction of rotation, the
gewünschten versetzten Schwenkbewegungen der beiden Kontaktfinger 12 und 14 ausgelöst werden können. desired offset pivoting movements of the two contact fingers 12 and 14 can be triggered.
In der dargestellten Weise sind die Kontaktfinger 12 und 14 unabhängig von der Drehrichtung der Schaltwelle 18 betätigbar, so dass die Schaltwelle 18 bei In the manner shown, the contact fingers 12 and 14, regardless of the direction of rotation of the switching shaft 18 is actuated, so that the switching shaft 18 at
wiederholten Drehbewegungen jeweils gleichartige Schwenkbewegungen der beiden Kontaktfinger 12 und 14 auslöst. Der erfindungsgemäße mechanische Schaltkontakt 10 liefert einen zuverlässig arbeitenden mechanischen Umschalter, dessen repeated rotational movements in each case similar pivotal movements of the two contact fingers 12 and 14 triggers. The mechanical switching contact 10 according to the invention provides a reliable mechanical changeover switch whose
Schaltfinger 12, 14 über die rotierende Welle 18 und die Kurvenscheiben 22 zwangsgeführt sind und deshalb sehr genau und zuverlässig gesteuert werden können, und zwar unabhängig von der Drehrichtung der Welle. Shifting fingers 12, 14 are positively driven over the rotating shaft 18 and the cam plates 22 and therefore can be controlled very accurately and reliably, regardless of the direction of rotation of the shaft.
Die beiden Kontaktfinger 12 und 4 können in der gezeigten Weise mehrfach als Freischalter, Trennschalter oder Umschalter betätigt werden, ohne dass die Drehrichtung der Schaltwelle 18 geändert wird. Der erfindungsgemäße mechanische Umschalter kann somit mehrfach in einer Richtung weiterschalten bzw. hin- und herschalten. Die Schaltwelle 18 kann bspw. über ein Schrittgetriebe an einen vorhandenen Drehantrieb gekoppelt sein, so dass eine feste Phasenzuordnung sichergestellt werden kann. The two contact fingers 12 and 4 can be repeatedly operated in the manner shown as an enable switch, disconnector or switch without the direction of rotation of the switching shaft 18 is changed. The mechanical changeover switch according to the invention can thus continue to switch in one direction or switch back and forth several times. The switching shaft 18 may, for example, be coupled via a step transmission to an existing rotary drive, so that a fixed phase assignment can be ensured.

Claims

An s p rü c h e Claims
. Mechanischer Schaltkontakt (10) zur Freischaltung, Trennschaltung oder , Mechanical switching contact (10) for activation, disconnection or
Umschaltung, insbesondere bei einem Laststufenschalter eines  Switching, especially in an on-load tap-changer
Stufentransformators, der wenigstens zwei jeweils zwischen zwei Endlagen verschwenkbare, elektrisch leitend miteinander verbundene Kontaktfinger bzw. Kontaktfingerpakete (12, 14) aufweist, die jeweils über Mehrhebelgelenke (16) mit einer drehbaren Schaltwelle (18) wirkverbunden sind, die über umlaufende Führungskulissen (24) zur Betätigung der Mehrhebelgelenke (16) und zur damit gekoppelten Auslenkung der Kontaktfinger bzw. Kontaktfingerpakete (12, 14) verfügt.  Stufentransformators having at least two each pivotable between two end positions, electrically conductively interconnected contact fingers or Kontaktfingerpakete (12, 14), which in each case via multi-lever joints (16) with a rotatable switching shaft (18) are operatively connected via circumferential guide slots (24) for actuating the multi-lever joints (16) and for the coupled deflection of the contact fingers or contact finger packages (12, 14).
2. Mechanischer Schaltkontakt nach Anspruch 1 , der als Trennschalter, 2. Mechanical switching contact according to claim 1, as a circuit breaker,
Freischalter oder Umschalter ausgebildet ist, und bei dem die beiden  Enabling switch or switch is formed, and in which the two
verschwenkbaren Kontaktfinger bzw. Kontaktfingerpakete (12, 14) auf einer elektrisch leitenden gemeinsamen Achse (20) gelagert sind, die parallel zur drehbaren Schaltwelle (18) angeordnet ist, wobei jedem der beiden  pivotable contact fingers or contact finger packages (12, 14) are mounted on an electrically conductive common axis (20) which is arranged parallel to the rotatable switching shaft (18), wherein each of the two
verschwenkbaren Kontaktfinger bzw. Kontaktfingerpakete (12, 14) ein separater mechanischer, elektrisch leitender Anschlag (26, 28) zur Bildung der jeweils geschalteten Endlagen des Trennschalter, Freischalters oder Umschalters zugeordnet ist.  pivotable contact fingers or contact finger packages (12, 14) is assigned a separate mechanical, electrically conductive stop (26, 28) for forming the respective switched end positions of the circuit breaker, disconnector or switch.
3. Mechanischer Schaltkontakt nach Anspruch 1 oder 2, bei dem der erste 3. Mechanical switching contact according to claim 1 or 2, wherein the first
Kontaktfinger (12) bzw. das erste Kontaktfingerpaket in einer ersten Endlage des mechanischen Schaltkontakts (10) an seinem elektrisch leitenden mechanischen Anschlag (26) anliegt und eine elektrisch leitende Verbindung zwischen der elektrisch leitenden gemeinsamen Achse (20) und dem Anschlag (26) herstellt, während der zweite Kontaktfinger (14) bzw. das zweite  Contact finger (12) or the first contact finger packet in a first end position of the mechanical switching contact (10) rests against its electrically conductive mechanical stop (26) and produces an electrically conductive connection between the electrically conductive common axis (20) and the stop (26) , while the second contact finger (14) and the second
Kontaktfingerpaket von dem ihm zugeordneten elektrisch leitenden  Contact finger packet from its associated electrically conductive
mechanischen Anschlag (28) abgehoben ist.  mechanical stop (28) is lifted.
4. Mechanischer Schaltkontakt nach Anspruch 3, bei dem der erste Kontaktfinger (12) bzw. das erste Kontaktfingerpaket in der zweiten Endlage des mechanischen Schaltkontakts (10) von dem ihm zugeordneten elektrisch leitenden mechanischen Anschlag (26) abgehoben ist, während der zweite Kontaktfinger (14) bzw. das zweite Kontaktfingerpaket an dem ihm 4. Mechanical switching contact according to claim 3, wherein the first contact finger (12) or the first contact finger packet in the second end position of mechanical switching contact (10) is lifted from its associated electrically conductive mechanical stop (26), while the second contact finger (14) and the second contact finger packet at the him
zugeordneten elektrisch leitenden mechanischen Anschlag (28) anliegt und eine elektrisch leitende Verbindung zwischen der elektrisch leitenden gemeinsamen Achse (20) und dem Anschlag (28) herstellt.  associated electrically conductive mechanical stop (28) and an electrically conductive connection between the electrically conductive common axis (20) and the stop (28) produces.
5. Mechanischer Schaltkontakt nach Anspruch 4, bei dem die beiden 5. Mechanical switching contact according to claim 4, wherein the two
Kontaktfinger (12, 14) bzw. Kontaktfingerpakete mechanisch miteinander gekoppelt und gegeneinander geringfügig verzögert betätigbar oder  Contact fingers (12, 14) or contact finger packages mechanically coupled together and against each other slightly delayed operable or
verschwenkbar und damit schaltbar sind.  are pivotable and thus switchable.
6. Mechanischer Schaltkontakt nach einem der Ansprüche 1 bis 5, bei dem die Kontaktfinger (12, 14) bzw. Kontaktfingerpakete unabhängig von der 6. Mechanical switching contact according to one of claims 1 to 5, wherein the contact fingers (12, 14) or contact finger packets regardless of the
Drehrichtung der Schaltwelle (18) betätigbar sind und diese bei wiederholten Drehbewegungen jeweils gleichartige Schwenkbewegungen der beiden  Direction of rotation of the switching shaft (18) are actuated and these in each case repeated movements of rotation similar pivoting movements of the two
Kontaktfinger ( 2, 14) bzw. Kontaktfingerpakete auslöst.  Contact fingers (2, 14) or contact finger packets triggers.
7. Mechanischer Schaltkontakt nach einem der Ansprüche 1 bis 6, bei dem die Führungskulissen (24) jeweils in drehfest mit der Schaltwelle (18) verbundenen Kurvenscheiben (22a, 22b, 22c) angeordnet sind und jeweils einen 7. Mechanical switching contact according to one of claims 1 to 6, wherein the guide slots (24) respectively in non-rotatably connected to the switching shaft (18) cam plates (22a, 22b, 22c) are arranged and one each
Betätigungsbolzen (36) jedes der Mehrhebelgelenke (16) führen und auslenken.  Guide and deflect the actuating bolts (36) of each of the multi-lever joints (16).
8. Mechanischer Schaltkontakt nach Anspruch 7, bei dem ein einseitig rahmen- oder gehäusefest gelagerter erster Hebel (32) jedes Mehrhebelgelenks (16) einen in der Führungskulisse (24) gleitenden Bolzen (36) aufweist und an seinem freien Ende (38) mit einem zweiten Hebel (34) gekoppelt ist, der schwenkbar am Kontaktfinger (12, 14) bzw. am Kontaktfingerpaket angreift. 8. Mechanical switching contact according to claim 7, wherein a one-sided frame or housing fixedly mounted first lever (32) of each multi-lever joint (16) in the guide slot (24) sliding bolt (36) and at its free end (38) with a second lever (34) is pivotally engages the contact finger (12, 14) and the contact finger packet.
9. Mechanischer Schaltkontakt nach Anspruch 8, bei dem der Bolzen (36) 9. Mechanical switching contact according to claim 8, wherein the bolt (36)
zwischen der rahmen- bzw. gehäusefesten Lagerung (40) und dem freien Ende (38) des ersten Hebels (32) angeordnet ist.  between the frame or housing fixed bearing (40) and the free end (38) of the first lever (32) is arranged.
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US8927885B2 (en) 2015-01-06
BR112012025815A2 (en) 2016-06-28
CN102893359A (en) 2013-01-23
RU2012148550A (en) 2014-05-20
BR112012025815B1 (en) 2020-03-03
UA106652C2 (en) 2014-09-25
CA2803182A1 (en) 2011-10-20
DE102010015051A1 (en) 2011-10-20
US20130192963A1 (en) 2013-08-01
WO2011128012A1 (en) 2011-10-20
CN102893359B (en) 2015-08-05
HK1178682A1 (en) 2013-09-13
EP2559042B1 (en) 2014-04-09
DE102010015051B4 (en) 2012-06-14
KR20130093479A (en) 2013-08-22
JP5744181B2 (en) 2015-07-01
JP2013527565A (en) 2013-06-27
KR101778104B1 (en) 2017-09-13

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