EP3061109B1 - Electric circuit breaker - Google Patents

Electric circuit breaker Download PDF

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Publication number
EP3061109B1
EP3061109B1 EP14808929.5A EP14808929A EP3061109B1 EP 3061109 B1 EP3061109 B1 EP 3061109B1 EP 14808929 A EP14808929 A EP 14808929A EP 3061109 B1 EP3061109 B1 EP 3061109B1
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EP
European Patent Office
Prior art keywords
latching
spring
circuit breaker
disc
pawl
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.)
Active
Application number
EP14808929.5A
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German (de)
French (fr)
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EP3061109A1 (en
Inventor
Fabian RÖHRIG
Ralf STUDT
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Siemens AG
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Siemens AG
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Publication of EP3061109A1 publication Critical patent/EP3061109A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005Charging means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005Charging means
    • H01H3/3021Charging means using unidirectional coupling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00Springs
    • H01H2235/01Spiral spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031Means for locking the spring in a charged state

Definitions

  • the invention relates to electrical circuit breakers having the features according to the preamble of patent claim 1.
  • circuit breakers are sold by Siemens AG under the product names Siemens 3AH and 3AE circuit breakers.
  • the previously known circuit breaker have a spring-loaded drive and a manual-winding device with which the spring-loaded drive can be tensioned.
  • the manual winding device comprises in these prior art circuit breakers a hand crank and a two-stage worm gear.
  • the US4,491,709 discloses the use of a hand-operated spring-loaded drive, wherein a detent disk is used.
  • the invention has for its object to provide an electrical circuit breaker with a manually tensioned spring drive, which has a particularly simple structural design, but still precludes a hazard to operators in the event of malfunction or incorrect operation of the circuit breaker.
  • the invention provides that the manual winding device is a rotatable locking disk, a next to the locking disc, in particular on the end face of the locking disc, arranged latch and a standing in communication with the latch manual actuator for moving the Has latch, the latch is controlled or einêtbar in a latching toothing of the locking disc and move by pressing the actuator, the latch and thereby the locking disc along a predetermined Set rotational direction for tensioning the spring can rotate, and the locking teeth is asymmetrical such that a force transmission from the latch to the locking disc only along the desired direction of rotation is possible and slipping of the locking disc on the latch takes place when the locking disc along the target rotational direction faster than the Pawl turns.
  • a significant advantage of the circuit breaker according to the invention is to be seen in the fact that in this a feedback or feedback on the manual winding device and thus on a hand-lifting device operator is excluded, even if it should come to a malfunction or malfunction of the circuit breaker. Due to the inventively provided asymmetry of the locking teeth ensures that the locking disk can ratchet along the latch when the locking disk rotates faster in the event of malfunction or malfunction of the circuit breaker along the desired direction of rotation than the latch. A power transmission from the latch to the locking disc is thus possible only along the desired direction of rotation, and only if the latch when actuated by the manual winding faster than the locking disc moves, ie during a user-side desired or user-induced tensioning of the spring drive. In the case of a malfunction or incorrect operation of the circuit breaker or in the event that the locking disc - for whatever reason - automatically rotates along the desired direction of rotation, there is no transmission of power between the latch and locking disc, so that an operator can not be compromised.
  • the latching toothing of the latching disc is a circular arc-shaped external toothing.
  • the locking disk can be achieved that the locking disk only cooperates with the latch when the spring of the spring drive by turning the locking disc along the desired direction of rotation is tense. During the relaxation phase of the spring can - be ensured due to the circular arc of the external teeth - that the locking disc is mechanically separated from the latch and a power transmission between these two components is omitted.
  • the circular arc angle has an angle value between (inclusive) 160 ° and (including) 200 °.
  • the locking disc is rotatably connected to a switching shaft of the circuit breaker
  • the spring of the spring accumulator drive forms a closing spring and a first rotation angle range of the switching shaft - when turning along the desired direction of rotation - for tensioning the spring and a second rotation angle range of the switching shaft - when turning along the desired direction of rotation - to relax the spring and to turn on the circuit breaker is used.
  • the circular arc-shaped external toothing of the locking disc and the latching pawl are arranged to each other such that the latching pawl engages or can engage in the circular arc-shaped external toothing, when the switching shaft is in the first rotation angle range.
  • the circular arc-shaped external toothing of the locking disc and the latch are arranged to each other such that the latch is out of engagement with the circular arc-shaped external teeth when the shift shaft is in the second rotation angle range.
  • the manual winding device it is considered advantageous if this has a rocker pivotable about a solid rocker axis on which the latch is pivotally supported about a pivot axis, wherein the pivot axis is parallel to the rocker axis and in the case of Swiveling the rocker about the rocker axis, the pivot axis of the latch is also rotated about the rocker axis.
  • the pivoting range of the latch in the direction of the locking disc is limited by means of a stop.
  • the manual winding device comprises a positioning spring which generates a spring force on the latch in the direction of the locking disk.
  • the spring of the spring drive can be tensioned during rotation of the shift shaft when a spring end of the spring of the spring drive to the shift shaft - is mounted eccentrically with respect to the shaft axis and the axis of rotation of the locking disc and the axis of the switching shaft are identical.
  • the circuit breaker on a backstop, which prevents rotation of the locking disc against the desired direction of rotation.
  • the backstop preferably comprises a toothed wheel, which is arranged coaxially to the locking disk rotationally fixed on the switching shaft of the circuit breaker.
  • FIG. 1 shows a manual winding device 10, which is suitable for clamping a spring-loaded drive 20 of an electrical circuit breaker, not shown in detail.
  • the spring drive 20 includes a spring 21, whose in the FIG. 1 lower spring end 21a by means of a fastening bolt 22 and an eccentric 23 eccentrically mounted on a switching shaft 30 of the circuit breaker. That in the FIG. 1 upper spring end 21b is immovable or fixed to the housing.
  • the spring 21 may be, for example, a switch-on spring whose spring energy is used to switch on the circuit breaker.
  • the lower spring end 21a of the in the FIG. 1 shown position along a target rotational direction S pivoted down by the shift shaft 30 is rotated along the target rotational direction S.
  • the manual winding device 10 To manually enable a tensioning of the spring 20 and a rotation of the switching shaft 30 about the target rotational direction S, the manual winding device 10, a manual actuator 11 in the form of a rod.
  • the actuating device 11 is attached to a first rocker end of a rocker 12, which is pivotable about a rocker axis 13.
  • a pivot axis 14 In the region of a second rocker end of the rocker 12, a pivot axis 14 is arranged, which holds a latch 15 pivotally.
  • the detent pawl 15 is pressed by means of a positioning spring 16 on a circular arc-shaped external toothing 17 of a locking disk 18.
  • a torsion spring 13a serves to rotate the rocker 12 to a predetermined starting position when no manual operation is performed.
  • the pivot axis 14 is preferably parallel to the rocker axis 13, so that in the case of pivoting the rocker 12 about the rocker axis 13, the pivot axis 14, which holds the latch 15 is also rotated about the rocker axis 13.
  • the circular arc-shaped external toothing 17 is asymmetrical, so that a power transmission from the detent pawl 15 to the locking disc 18 only along the target rotational direction S is possible and slipping of the locking disc 18 takes place on the latch 15, when the locking disc 18 along the target rotational direction S faster than the Locking pawl 15 turns.
  • Such a "faster" turning the locking disc 18 relative to the latch 15 may occur, for example, when a in the FIG. 1 not further shown motor drive of the circuit breaker is activated and the spring 21 of the spring drive 20 is additionally tensioned by means of the motor drive.
  • the circular arc angle of the circular arc-shaped external toothing 17 has a value of approximately 180 °.
  • Such a circular arc angle ensures that the detent pawl 15 is engaged with the locking disc 18 only when a tensioning of the spring 21 of the in the FIG. 1 shown unstrained state by rotation of the switching shaft 30 along the target rotational direction S should be made.
  • the spring 21 is in its tensioned state, they - starting from the illustration according to FIG. 1 -
  • the detent pawl 15 loses its engagement with the external toothing 17 or with the locking disc 18, so that the manual winding device 10 is automatically separated from the spring-loaded drive 20.
  • the manual winding device 10 is operated to tension the spring 21 as follows:
  • the manual actuating device 11 is set in an oscillating movement, by which the rocker 12 is pivoted about the rocker axis 13.
  • the pivoting of the rocker 12 about the rocker axis 13 leads to a pivoting of the pivot axis 14 and thus to a movement of the detent pawl 15 tangentially along the external teeth 17 of the locking disk 18.
  • the movement phase in which the latching pawl 15 is moved along the desired direction of rotation S is engage the detent pawl 15 in the outer toothing 17 force-transmitting and rotate the locking disc 18 along the desired direction of rotation S, whereby the shift shaft 30 is rotated about the desired direction of rotation S and the spring 21 is tensioned.
  • the circuit breaker is in accordance with FIG. 1 equipped with a backstop 40 which includes a gear 41.
  • the gear 41 is connected to a not shown latch mechanism in connection, which allows rotation of the gear 41 and thus rotation of the switching shaft 30 exclusively in the desired direction of rotation S and otherwise inhibits.
  • FIG. 2 shows the rotation of the locking disc 18 along the desired direction of rotation S, as soon as the manual actuator 11 is actuated and with this by pivoting the rocker 12, the latch 15 is pushed forward. It can be seen that the spring end 21a has already been moved slightly downwards due to the eccentric attachment to the control shaft 30 by the rotation of the control shaft 30.
  • FIG. 3 shows a further state of the spring drive 20 during the clamping operation in more detail. It can be seen that the latching pawl 15 engages in a central region of the external toothing 17 of the latching disc 18 and the spring 21 of the spring accumulator 20 is thus already half clamped in half.
  • FIG. 4 shows the spring 21 and the spring drive 20 in the fully tensioned state. It can be seen that the latching pawl 15 has reached the last tooth of the circular outer teeth 17 of the locking disc 18 and a further oscillating movement of the manual actuator 11 can cause no further tensioning of the spring 21 and no further rotation of the switching shaft 30 along the desired direction of rotation S. ,
  • the first rotation angle range is in the embodiment according to the FIGS. 1 to 4 defined by the upper position of the spring end 21a of the spring 21 according to FIG. 1 and the lower position of the spring end 21a of the spring 21 according to FIG. 4 ,
  • the second rotation angle range of the shift shaft 30 is between the state according to FIG. 4 and the state according to FIG. 1 when the shift shaft 30 is further rotated along the target rotational direction S.
  • the manual winding device 10 is preferably equipped with a stop 19 which limits the pivotability of the latching pawl 15 about the pivoting axis 14.
  • the stop 19 may be formed for example by a slot 19a and a bolt 19b (see. FIG. 1 ).
  • FIG. 5 shows the circuit breaker according to the FIGS. 1 and 4 again in a different view in the tensioned state of the spring 21. Die FIG. 5 Thus shows the same state of the spring 21 and the spring drive 20 as the FIG. 4 ,

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung bezieht sich auf elektrische Leistungsschalter mit den Merkmalen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to electrical circuit breakers having the features according to the preamble of patent claim 1.

Derartige Leistungsschalter werden von der Siemens AG unter den Produktnamen Siemens Leistungsschalter 3AH und 3AE vertrieben. Die vorbekannten Leistungsschalter weisen einen Federspeicherantrieb und eine Handaufzugseinrichtung auf, mit der sich der Federspeicherantrieb spannen lässt. Die Handaufzugseinrichtung umfasst bei diesen vorbekannten Leistungsschaltern eine Handkurbel sowie ein zweistufiges Schneckengetriebe.Such circuit breakers are sold by Siemens AG under the product names Siemens 3AH and 3AE circuit breakers. The previously known circuit breaker have a spring-loaded drive and a manual-winding device with which the spring-loaded drive can be tensioned. The manual winding device comprises in these prior art circuit breakers a hand crank and a two-stage worm gear.

Die US4,491,709 offenbart die Verwendung eines handbetriebenen Federspeicherantriebs, wobei eine Rastscheibe Anwendung findet.The US4,491,709 discloses the use of a hand-operated spring-loaded drive, wherein a detent disk is used.

Der Erfindung liegt die Aufgabe zugrunde, einen elektrischen Leistungsschalter mit einem manuell spannbaren Federspeicherantrieb anzugeben, der einen besonders einfachen konstruktiven Aufbau aufweist, aber dennoch eine Gefährdung von Bedienpersonen im Falle einer Fehlfunktion oder eine Fehlbedienung des Leistungsschalters ausschließt.The invention has for its object to provide an electrical circuit breaker with a manually tensioned spring drive, which has a particularly simple structural design, but still precludes a hazard to operators in the event of malfunction or incorrect operation of the circuit breaker.

Diese Aufgabe wird erfindungsgemäß durch einen elektrischen Leistungsschalter mit den Merkmalen gemäß Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Leistungsschalters sind in Unteransprüchen angegeben.This object is achieved by an electrical circuit breaker with the features of claim 1. Advantageous embodiments of the circuit breaker according to the invention are specified in subclaims.

Danach ist erfindungsgemäß vorgesehen, dass die Handaufzugseinrichtung eine drehbare Rastscheibe, eine neben der Rastscheibe, insbesondere an der Stirnseite der Rastscheibe, angeordnete Rastklinke und eine mit der Rastklinke in Verbindung stehende manuelle Betätigungseinrichtung zum Bewegen der Rastklinke aufweist, die Rastklinke in eine Rastverzahnung der Rastscheibe eingesteuert oder einsteuerbar ist und sich durch ein Betätigen der Betätigungseinrichtung die Rastklinke bewegen und dadurch die Rastscheibe entlang einer vorgegebenen Solldrehrichtung zum Spannen der Feder drehen lässt, und die Rastverzahnung derart asymmetrisch ist, dass eine Kraftübertragung von der Rastklinke auf die Rastscheibe nur entlang der Solldrehrichtung möglich ist und ein Entlangrutschen der Rastscheibe an der Rastklinke erfolgt, wenn sich die Rastscheibe entlang der Solldrehrichtung schneller als die Rastklinke dreht.Thereafter, the invention provides that the manual winding device is a rotatable locking disk, a next to the locking disc, in particular on the end face of the locking disc, arranged latch and a standing in communication with the latch manual actuator for moving the Has latch, the latch is controlled or einsteuerbar in a latching toothing of the locking disc and move by pressing the actuator, the latch and thereby the locking disc along a predetermined Set rotational direction for tensioning the spring can rotate, and the locking teeth is asymmetrical such that a force transmission from the latch to the locking disc only along the desired direction of rotation is possible and slipping of the locking disc on the latch takes place when the locking disc along the target rotational direction faster than the Pawl turns.

Ein wesentlicher Vorteil des erfindungsgemäßen Leistungsschalters ist darin zu sehen, dass bei diesem eine Rückwirkung bzw. Rückkopplung auf die Handaufzugseinrichtung und damit auf eine die Handaufzugseinrichtung bedienende Bedienperson ausgeschlossen ist, selbst wenn es zu einer Fehlbedienung oder Fehlfunktion des Leistungsschalters kommen sollte. Aufgrund der erfindungsgemäß vorgesehenen Asymmetrie der Rastverzahnung wird sichergestellt, dass die Rastscheibe an der Rastklinke entlangratschen kann, wenn sich die Rastscheibe im Falle einer Fehlfunktion oder Fehlbedienung des Leistungsschalters schneller entlang der Solldrehrichtung dreht als die Rastklinke. Eine Kraftübertragung von der Rastklinke auf die Rastscheibe ist somit nur entlang der Solldrehrichtung möglich, und auch nur dann, wenn sich die Rastklinke bei Betätigung durch die Handaufzugseinrichtung schneller als die Rastscheibe bewegt, also während eines benutzerseitig gewünschten bzw. benutzerseitig herbeigeführten Spannens des Federspeicherantriebs. Im Falle einer Fehlfunktion oder einer Fehlbedienung des Leistungsschalters bzw. im Falle, dass sich die Rastscheibe - aus welchen Gründen auch immer - selbsttätig entlang der Solldrehrichtung dreht, fehlt es an einer Kraftübertragung zwischen Rastklinke und Rastscheibe, so dass eine Bedienperson nicht gefährdet werden kann.A significant advantage of the circuit breaker according to the invention is to be seen in the fact that in this a feedback or feedback on the manual winding device and thus on a hand-lifting device operator is excluded, even if it should come to a malfunction or malfunction of the circuit breaker. Due to the inventively provided asymmetry of the locking teeth ensures that the locking disk can ratchet along the latch when the locking disk rotates faster in the event of malfunction or malfunction of the circuit breaker along the desired direction of rotation than the latch. A power transmission from the latch to the locking disc is thus possible only along the desired direction of rotation, and only if the latch when actuated by the manual winding faster than the locking disc moves, ie during a user-side desired or user-induced tensioning of the spring drive. In the case of a malfunction or incorrect operation of the circuit breaker or in the event that the locking disc - for whatever reason - automatically rotates along the desired direction of rotation, there is no transmission of power between the latch and locking disc, so that an operator can not be compromised.

Als besonders vorteilhaft wird es angesehen, wenn die Rastverzahnung der Rastscheibe eine kreisbogenförmige Außenverzahnung ist. Bei dieser Ausgestaltung der Rastscheibe lässt sich erreichen, dass die Rastscheibe nur dann mit der Rastklinke zusammenwirkt, wenn die Feder des Federspeicherantriebs durch Drehen der Rastscheibe entlang der Solldrehrichtung gespannt wird. Während der Entspannungsphase der Feder kann - aufgrund der Kreisbogenförmigkeit der Außenverzahnung - gewährleistet werden, dass die Rastscheibe von der Rastklinke mechanisch getrennt ist und eine Kraftübertragung zwischen diesen beiden Komponenten unterbleibt.It is considered to be particularly advantageous if the latching toothing of the latching disc is a circular arc-shaped external toothing. In this embodiment of the locking disk can be achieved that the locking disk only cooperates with the latch when the spring of the spring drive by turning the locking disc along the desired direction of rotation is tense. During the relaxation phase of the spring can - be ensured due to the circular arc of the external teeth - that the locking disc is mechanically separated from the latch and a power transmission between these two components is omitted.

Vorzugsweise weist der Kreisbogenwinkel einen Winkelwert zwischen (einschließlich) 160° und (einschließlich) 200° auf.Preferably, the circular arc angle has an angle value between (inclusive) 160 ° and (including) 200 °.

Bei einer konstruktiv einfachen und damit vorteilhaften Ausgestaltung des Leistungsschalters ist vorgesehen, dass die Rastscheibe drehfest mit einer Schaltwelle des Leistungsschalters verbunden ist, die Feder des Federspeicherantriebs eine Einschaltfeder bildet und ein erster Drehwinkelbereich der Schaltwelle - bei Drehen entlang der Solldrehrichtung - zum Spannen der Feder und ein zweiter Drehwinkelbereich der Schaltwelle - bei Drehen entlang der Solldrehrichtung - zum Entspannen der Feder und zum Einschalten des Leistungsschalters dient.In a structurally simple and thus advantageous embodiment of the circuit breaker is provided that the locking disc is rotatably connected to a switching shaft of the circuit breaker, the spring of the spring accumulator drive forms a closing spring and a first rotation angle range of the switching shaft - when turning along the desired direction of rotation - for tensioning the spring and a second rotation angle range of the switching shaft - when turning along the desired direction of rotation - to relax the spring and to turn on the circuit breaker is used.

Vorzugsweise sind die kreisbogenförmige Außenverzahnung der Rastscheibe und die Rastklinke derart zueinander angeordnet, dass die Rastklinke in die kreisbogenförmige Außenverzahnung eingreift oder eingreifen kann, wenn sich die Schaltwelle in dem ersten Drehwinkelbereich befindet.Preferably, the circular arc-shaped external toothing of the locking disc and the latching pawl are arranged to each other such that the latching pawl engages or can engage in the circular arc-shaped external toothing, when the switching shaft is in the first rotation angle range.

Entsprechend wird es als vorteilhaft angesehen, wenn die kreisbogenförmige Außenverzahnung der Rastscheibe und die Rastklinke derart zueinander angeordnet sind, dass die Rastklinke außer Eingriff mit der kreisbogenförmigen Außenverzahnung steht, wenn sich die Schaltwelle in dem zweiten Drehwinkelbereich befindet.Accordingly, it is considered advantageous if the circular arc-shaped external toothing of the locking disc and the latch are arranged to each other such that the latch is out of engagement with the circular arc-shaped external teeth when the shift shaft is in the second rotation angle range.

Bezüglich der Ausgestaltung der Handaufzugseinrichtung wird es als vorteilhaft angesehen, wenn diese eine um eine feste Wippenachse schwenkbare Wippe aufweist, an der die Rastklinke um eine Schwenkachse schwenkbar gehalten ist, wobei die Schwenkachse parallel zur Wippenachse liegt und im Falle eines Schwenkens der Wippe um die Wippenachse die Schwenkachse der Rastklinke ebenfalls um die Wippenachse gedreht wird.With regard to the embodiment of the manual winding device, it is considered advantageous if this has a rocker pivotable about a solid rocker axis on which the latch is pivotally supported about a pivot axis, wherein the pivot axis is parallel to the rocker axis and in the case of Swiveling the rocker about the rocker axis, the pivot axis of the latch is also rotated about the rocker axis.

Vorzugsweise ist der Schwenkbereich der Rastklinke in Richtung der Rastscheibe (bzw. in Richtung der Schaltwelle) mittels eines Anschlags begrenzt.Preferably, the pivoting range of the latch in the direction of the locking disc (or in the direction of the switching shaft) is limited by means of a stop.

Um eine definierte Position der Rastklinke zu gewährleisten, wird es als vorteilhaft angesehen, wenn die Handaufzugseinrichtung eine Positionierfeder umfasst, die eine Federkraft auf die Rastklinke in Richtung auf die Rastscheibe erzeugt.In order to ensure a defined position of the latch, it is considered advantageous if the manual winding device comprises a positioning spring which generates a spring force on the latch in the direction of the locking disk.

Besonders einfach und damit vorteilhaft lässt sich die Feder des Federspeicherantriebs bei Rotation der Schaltwelle spannen, wenn ein Federende der Feder des Federspeicherantriebs an der Schaltwelle - bezogen auf die Wellenachse - exzentrisch befestigt ist und die Drehachse der Rastscheibe und die Achse der Schaltwelle identisch sind.Particularly simple and thus advantageous is the spring of the spring drive can be tensioned during rotation of the shift shaft when a spring end of the spring of the spring drive to the shift shaft - is mounted eccentrically with respect to the shaft axis and the axis of rotation of the locking disc and the axis of the switching shaft are identical.

Vorzugsweise weist der Leistungsschalter eine Rücklaufsperre auf, die ein Drehen der Rastscheibe entgegen der Solldrehrichtung verhindert.Preferably, the circuit breaker on a backstop, which prevents rotation of the locking disc against the desired direction of rotation.

Die Rücklaufsperre umfasst vorzugsweise ein Zahnrad, das koaxial zu der Rastscheibe drehfest auf der Schaltwelle des Leistungsschalters angeordnet ist.The backstop preferably comprises a toothed wheel, which is arranged coaxially to the locking disk rotationally fixed on the switching shaft of the circuit breaker.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert; dabei zeigen beispielhaft

Figur 1
ein Ausführungsbeispiel für einen elektrischen Leistungsschalter mit einem eine Feder aufweisenden Federspeicherantrieb und einer Handaufzugseinrichtung zum manuellen Spannen der Feder, wobei die Figur 1 den entspannten Zustand der Feder zeigt,
Figuren 2-3
das Spannen der Feder gemäß Figur 1 anhand unterschiedlicher Federspannungszustände,
Figur 4
den gespannten Zustand der Feder gemäß Figur 1 und
Figur 5
den Leistungsschalter gemäß Figur 4, also im gespannten Zustand der Feder, in einer anderen Sicht.
The invention will be explained in more detail with reference to embodiments; thereby show by way of example
FIG. 1
an embodiment of an electrical circuit breaker with a spring having a spring drive and a manual winding device for manually biasing the spring, wherein the FIG. 1 shows the relaxed state of the spring,
Figures 2-3
the tensioning of the spring according to FIG. 1 based on different spring tension states,
FIG. 4
the tensioned state of the spring according to FIG. 1 and
FIG. 5
the circuit breaker according to FIG. 4 , so in the tensioned state of the spring, in a different view.

In den Figuren werden der Übersicht halber für identische oder vergleichbare Komponenten stets dieselben Bezugszeichen verwendet.For the sake of clarity, the same reference numerals are always used in the figures for identical or comparable components.

Die Figur 1 zeigt eine Handaufzugseinrichtung 10, die zum Spannen eines Federspeicherantriebs 20 eines im Detail nicht weiter dargestellten elektrischen Leistungsschalters geeignet ist.The FIG. 1 shows a manual winding device 10, which is suitable for clamping a spring-loaded drive 20 of an electrical circuit breaker, not shown in detail.

Der Federspeicherantrieb 20 umfasst eine Feder 21, deren in der Figur 1 unteres Federende 21a mittels eines Befestigungsbolzens 22 und eines Exzenterelements 23 exzentrisch an einer Schaltwelle 30 des Leistungsschalters befestigt ist. Das in der Figur 1 obere Federende 21b ist unbeweglich bzw. gehäusefest montiert. Bei der Feder 21 kann es sich beispielsweise um eine Einschaltfeder handeln, deren Federenergie zum Einschalten des Leistungsschalters verwendet wird.The spring drive 20 includes a spring 21, whose in the FIG. 1 lower spring end 21a by means of a fastening bolt 22 and an eccentric 23 eccentrically mounted on a switching shaft 30 of the circuit breaker. That in the FIG. 1 upper spring end 21b is immovable or fixed to the housing. The spring 21 may be, for example, a switch-on spring whose spring energy is used to switch on the circuit breaker.

Zum Spannen der Feder 21 des Federspeicherantriebs 20 wird das untere Federende 21a von der in der Figur 1 gezeigten Position entlang einer Solldrehrichtung S nach unten geschwenkt, indem die Schaltwelle 30 entlang der Solldrehrichtung S gedreht wird.For tensioning the spring 21 of the spring drive 20, the lower spring end 21a of the in the FIG. 1 shown position along a target rotational direction S pivoted down by the shift shaft 30 is rotated along the target rotational direction S.

Um ein manuelles Spannen der Feder 20 bzw. ein Drehen der Schaltwelle 30 um die Solldrehrichtung S manuell zu ermöglichen, weist die Handaufzugseinrichtung 10 eine manuelle Betätigungseinrichtung 11 in Form einer Stange auf. Die Betätigungseinrichtung 11 ist an einem ersten Wippenende einer Wippe 12 befestigt, die um eine Wippenachse 13 schwenkbar ist. Im Bereich eines zweiten Wippenendes der Wippe 12 ist eine Schwenkachse 14 angeordnet, die eine Rastklinke 15 schwenkbar hält. Die Rastklinke 15 wird mittels einer Positionierfeder 16 auf eine kreisbogenförmige Außenverzahnung 17 einer Rastscheibe 18 gedrückt. Eine Drehfeder 13a dient dazu, die Wippe 12 in eine vorgegebene Ausgangsposition zu drehen, wenn keine manuelle Betätigung vorgenommen wird.To manually enable a tensioning of the spring 20 and a rotation of the switching shaft 30 about the target rotational direction S, the manual winding device 10, a manual actuator 11 in the form of a rod. The actuating device 11 is attached to a first rocker end of a rocker 12, which is pivotable about a rocker axis 13. In the region of a second rocker end of the rocker 12, a pivot axis 14 is arranged, which holds a latch 15 pivotally. The detent pawl 15 is pressed by means of a positioning spring 16 on a circular arc-shaped external toothing 17 of a locking disk 18. A torsion spring 13a serves to rotate the rocker 12 to a predetermined starting position when no manual operation is performed.

Die Schwenkachse 14 liegt vorzugsweise parallel zur Wippenachse 13, so dass im Falle eines Schwenkens der Wippe 12 um die Wippenachse 13 die Schwenkachse 14, die die Rastklinke 15 hält, ebenfalls um die Wippenachse 13 gedreht wird.The pivot axis 14 is preferably parallel to the rocker axis 13, so that in the case of pivoting the rocker 12 about the rocker axis 13, the pivot axis 14, which holds the latch 15 is also rotated about the rocker axis 13.

Die kreisbogenförmige Außenverzahnung 17 ist asymmetrisch, so dass eine Kraftübertragung von der Rastklinke 15 auf die Rastscheibe 18 nur entlang der Solldrehrichtung S möglich ist und ein Entlangrutschen der Rastscheibe 18 an der Rastklinke 15 erfolgt, wenn sich die Rastscheibe 18 entlang der Solldrehrichtung S schneller als die Rastklinke 15 dreht. Ein solches "schnelleres" Drehen der Rastscheibe 18 relativ zur Rastklinke 15 kann beispielsweise auftreten, wenn ein in der Figur 1 nicht weiter gezeigter Motorantrieb des Leistungsschalters aktiviert wird und die Feder 21 des Federspeicherantriebs 20 zusätzlich mittels des Motorantriebs gespannt wird.The circular arc-shaped external toothing 17 is asymmetrical, so that a power transmission from the detent pawl 15 to the locking disc 18 only along the target rotational direction S is possible and slipping of the locking disc 18 takes place on the latch 15, when the locking disc 18 along the target rotational direction S faster than the Locking pawl 15 turns. Such a "faster" turning the locking disc 18 relative to the latch 15 may occur, for example, when a in the FIG. 1 not further shown motor drive of the circuit breaker is activated and the spring 21 of the spring drive 20 is additionally tensioned by means of the motor drive.

Bei dem Ausführungsbeispiel gemäß Figur 1 weist der Kreisbogenwinkel der kreisbogenförmigen Außenverzahnung 17 einen Wert von ca. 180° auf. Ein solcher Kreisbogenwinkel stellt sicher, dass die Rastklinke 15 mit der Rastscheibe 18 lediglich dann in Eingriff steht, wenn ein Spannen der Feder 21 von dem in der Figur 1 gezeigten ungespannten Zustand durch Drehen der Schaltwelle 30 entlang der Solldrehrichtung S erfolgen soll. Befindet sich die Feder 21 in ihrem gespannten Zustand, den sie - ausgehend von der Darstellung gemäß Figur 1 - durch Drehen der Schaltwelle 30 bzw. durch Drehen der Rastscheibe 18 um 180° erreicht, so verliert die Rastklinke 15 ihren Eingriff mit der Außenverzahnung 17 bzw. mit der Rastscheibe 18, so dass die Handaufzugseinrichtung 10 selbsttätig von dem Federspeicherantrieb 20 getrennt wird.In the embodiment according to FIG. 1 the circular arc angle of the circular arc-shaped external toothing 17 has a value of approximately 180 °. Such a circular arc angle ensures that the detent pawl 15 is engaged with the locking disc 18 only when a tensioning of the spring 21 of the in the FIG. 1 shown unstrained state by rotation of the switching shaft 30 along the target rotational direction S should be made. The spring 21 is in its tensioned state, they - starting from the illustration according to FIG. 1 - By turning the switching shaft 30 or by turning the Detent disc 18 is reached by 180 °, the detent pawl 15 loses its engagement with the external toothing 17 or with the locking disc 18, so that the manual winding device 10 is automatically separated from the spring-loaded drive 20.

Die Handaufzugseinrichtung 10 wird zum Spannen der Feder 21 wie folgt betrieben:The manual winding device 10 is operated to tension the spring 21 as follows:

Die manuelle Betätigungseinrichtung 11 wird in eine oszillierende Bewegung versetzt, durch die die Wippe 12 um die Wippenachse 13 geschwenkt wird. Das Schwenken der Wippe 12 um die Wippenachse 13 führt zu einem Verschwenken der Schwenkachse 14 und somit zu einer Bewegung der Rastklinke 15 tangential entlang der Außenverzahnung 17 der Rastscheibe 18. Während der Bewegungsphase, in der die Rastklinke 15 entlang der Solldrehrichtung S bewegt wird, wird die Rastklinke 15 in die Außenverzahnung 17 kraftübertragend eingreifen und die Rastscheibe 18 entlang der Solldrehrichtung S drehen, wodurch auch die Schaltwelle 30 um die Solldrehrichtung S gedreht wird und die Feder 21 gespannt wird.The manual actuating device 11 is set in an oscillating movement, by which the rocker 12 is pivoted about the rocker axis 13. The pivoting of the rocker 12 about the rocker axis 13 leads to a pivoting of the pivot axis 14 and thus to a movement of the detent pawl 15 tangentially along the external teeth 17 of the locking disk 18. During the movement phase in which the latching pawl 15 is moved along the desired direction of rotation S is engage the detent pawl 15 in the outer toothing 17 force-transmitting and rotate the locking disc 18 along the desired direction of rotation S, whereby the shift shaft 30 is rotated about the desired direction of rotation S and the spring 21 is tensioned.

Bei der Rückwärtsbewegung der Rastklinke 15 wird aufgrund der Asymmetrie der Zähne der Außenverzahnung 17 keine Kraftübertragung zwischen der Rastklinke 15 und der Außenverzahnung 17 bzw. der Rastscheibe 18 erfolgen, so dass die Rastklinke 15 auf der Außenverzahnung 17 entlangratschen wird, ohne dabei die Rastscheibe 18 zurückzudrehen.In the backward movement of the detent pawl 15 is due to the asymmetry of the teeth of the external teeth 17 no power transmission between the detent pawl 15 and the external teeth 17 and the detent disc 18 done so that the detent ratchet 15 along the external teeth 17 will ratchet without turning back the detent disk 18 ,

Um ein Zurückdrehen der Rastscheibe 18 entgegen der Solldrehrichtung S zuverlässig zu vermeiden, ist der Leistungsschalter gemäß Figur 1 mit einer Rücklaufsperre 40 ausgestattet, die ein Zahnrad 41 umfasst. Das Zahnrad 41 steht mit einem nicht weiter dargestellten Klinkenmechanismus in Verbindung, der ein Drehen des Zahnrads 41 und damit ein Drehen der Schaltwelle 30 ausschließlich in der Solldrehrichtung S erlaubt und ansonsten unterbindet.In order to reliably prevent the locking disk 18 from being turned back counter to the desired direction of rotation S, the circuit breaker is in accordance with FIG FIG. 1 equipped with a backstop 40 which includes a gear 41. The gear 41 is connected to a not shown latch mechanism in connection, which allows rotation of the gear 41 and thus rotation of the switching shaft 30 exclusively in the desired direction of rotation S and otherwise inhibits.

Die Figur 2 zeigt das Drehen der Rastscheibe 18 entlang der Solldrehrichtung S, sobald die manuelle Betätigungseinrichtung 11 betätigt wird und mit dieser durch Schwenken der Wippe 12 die Rastklinke 15 nach vorne gedrückt wird. Es lässt sich erkennen, dass durch das Drehen der Schaltwelle 30 das Federende 21a aufgrund der exzentrischen Befestigung an der Schaltwelle 30 bereits geringfügig nach unten bewegt worden ist.The FIG. 2 shows the rotation of the locking disc 18 along the desired direction of rotation S, as soon as the manual actuator 11 is actuated and with this by pivoting the rocker 12, the latch 15 is pushed forward. It can be seen that the spring end 21a has already been moved slightly downwards due to the eccentric attachment to the control shaft 30 by the rotation of the control shaft 30.

Die Figur 3 zeigt einen weiteren Zustand des Federspeicherantriebs 20 während des Spannvorgangs näher im Detail. Man erkennt, dass die Rastklinke 15 in einem mittleren Bereich der Außenverzahnung 17 der Rastscheibe 18 eingreift und die Feder 21 des Federspeichers 20 damit bereits ca. zur Hälfte teilgespannt ist.The FIG. 3 shows a further state of the spring drive 20 during the clamping operation in more detail. It can be seen that the latching pawl 15 engages in a central region of the external toothing 17 of the latching disc 18 and the spring 21 of the spring accumulator 20 is thus already half clamped in half.

Die Figur 4 zeigt die Feder 21 bzw. den Federspeicherantrieb 20 im vollständig gespannten Zustand. Es lässt sich erkennen, dass die Rastklinke 15 den letzten Zahn der kreisbogenförmigen Außenverzahnung 17 der Rastscheibe 18 erreicht hat und eine weitere oszillierende Bewegung der manuellen Betätigungseinrichtung 11 kein weiteres Spannen der Feder 21 bzw. keine weitere Rotation der Schaltwelle 30 entlang der Solldrehrichtung S hervorrufen kann.The FIG. 4 shows the spring 21 and the spring drive 20 in the fully tensioned state. It can be seen that the latching pawl 15 has reached the last tooth of the circular outer teeth 17 of the locking disc 18 and a further oscillating movement of the manual actuator 11 can cause no further tensioning of the spring 21 and no further rotation of the switching shaft 30 along the desired direction of rotation S. ,

Zusammengefasst lassen die Figuren 1 bis 4 also erkennen, dass ein erster Drehwinkelbereich der Schaltwelle 30 - bei Drehen entlang der Solldrehrichtung S - zum Spannen der Feder 21 und ein zweiter Drehwinkelbereich der Schaltwelle 30 zum Entspannen der Feder und zum Einsschalten des Leistungsschalters dient. Der erste Drehwinkelbereich wird bei dem Ausführungsbeispiel gemäß den Figuren 1 bis 4 definiert durch die obere Position des Federendes 21a der Feder 21 gemäß Figur 1 und der unteren Position des Federendes 21a der Feder 21 gemäß Figur 4.Summarized leave the FIGS. 1 to 4 Thus, it can be seen that a first rotational angle range of the switching shaft 30-when rotating along the set rotational direction S-serves for tensioning the spring 21 and a second rotational angle range of the switching shaft 30 for releasing the spring and for switching on the circuit breaker. The first rotation angle range is in the embodiment according to the FIGS. 1 to 4 defined by the upper position of the spring end 21a of the spring 21 according to FIG. 1 and the lower position of the spring end 21a of the spring 21 according to FIG FIG. 4 ,

In dem ersten Drehwinkelbereich der Schaltwelle 30 befindet sich die Außenverzahnung 17 der Rastscheibe 18, wodurch in dem ersten Drehwinkelbereich der Schaltwelle 30 ein Spannen der Feder 21 mittels der Betätigungseinrichtung 11 bewirkt werden kann. Der zweite Drehwinkelbereich der Schaltwelle 30 liegt zwischen dem Zustand gemäß Figur 4 und dem Zustand gemäß Figur 1, wenn die Schaltwelle 30 entlang der Solldrehrichtung S weiter gedreht wird. Im zweiten Drehwinkelbereich der Schaltwelle 30 befindet sich keine Außenverzahnung auf der Rastscheibe 18, so dass die Rastklinke 15 im zweiten Drehwinkelbereich der Schaltwelle 30 nicht in die Rastscheibe 18 eingreifen kann.In the first rotation angle range of the switching shaft 30, the external teeth 17 of the locking disc 18, whereby in The first rotational angle range of the switching shaft 30, a tensioning of the spring 21 can be effected by means of the actuating device 11. The second rotation angle range of the shift shaft 30 is between the state according to FIG. 4 and the state according to FIG. 1 when the shift shaft 30 is further rotated along the target rotational direction S. In the second rotational angle range of the switching shaft 30, there is no external toothing on the detent disk 18, so that the detent pawl 15 can not engage in the detent disk 18 in the second rotational angle range of the switching shaft 30.

Um zu verhindern, dass die Rastklinke 15 im zweiten Drehwinkelbereich der Schaltwelle 30 zu weit in Richtung Schaltwelle 30 schwenken kann, ist die Handaufzugseinrichtung 10 vorzugsweise mit einem Anschlag 19 ausgestattet, der die Schwenkbarkeit der Rastklinke 15 um die Schwenkachse 14 begrenzt. Der Anschlag 19 kann beispielsweise durch ein Langloch 19a und einen Bolzen 19b gebildet sein (vgl. Figur 1).In order to prevent the latching pawl 15 from pivoting too far in the direction of the switching shaft 30 in the second rotation angle range of the switching shaft 30, the manual winding device 10 is preferably equipped with a stop 19 which limits the pivotability of the latching pawl 15 about the pivoting axis 14. The stop 19 may be formed for example by a slot 19a and a bolt 19b (see. FIG. 1 ).

Die Figur 5 zeigt den Leistungsschalter gemäß den Figuren 1 und 4 nochmals in einer anderen Sicht im gespannten Zustand der Feder 21. Die Figur 5 zeigt somit denselben Zustand der Feder 21 bzw. des Federspeicherantriebs 20 wie die Figur 4.The FIG. 5 shows the circuit breaker according to the FIGS. 1 and 4 again in a different view in the tensioned state of the spring 21. Die FIG. 5 Thus shows the same state of the spring 21 and the spring drive 20 as the FIG. 4 ,

Zusammengefasst wird durch die Kreisbogenförmigkeit der Außenverzahnung 17 sichergestellt, dass die manuelle Betätigungseinrichtung 11 ausschließlich im ersten Drehwinkelbereich der Schaltwelle 30, also während der Spannphase, mit der Schaltwelle 30 mechanisch gekoppelt ist und einem Entspannen der Feder 21 beim Weiterdrehen der Schaltwelle 30 entlang der Solldrehrichtung S ausgehend vom gespannten Zustand, wie er in der Figur 4 gezeigt ist, nicht entgegenstehen kann. Die Asymmetrie der Außenverzahnung 17 stellt sicher, dass ein Drehen der Schaltwelle 30 entlang der Solldrehrichtung S unabhängig von einem Betrieb der Handaufzugseinrichtung 10 möglich ist, sei es durch einen Motorantrieb des Leistungsschalters oder einen anderen Eingriff; eine Rückkopplung auf die Betätigungseinrichtung 11 im Falle einer Fehlbedienung des Leistungsschalters wird somit zuverlässig verhindert.
Obwohl die Erfindung im Detail durch bevorzugte Ausführungsbeispiele näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen nach dem Gegenstand der Ansprüche können vom Fachmann hieraus abgeleitet werden.
In summary, it is ensured by the circular arc of the external teeth 17, that the manual actuator 11 is mechanically coupled only in the first rotation angle range of the switching shaft 30, ie during the clamping phase, with the switching shaft 30 and a relaxation of the spring 21 during further rotation of the switching shaft 30 along the target rotational direction S. starting from the strained state, as in the FIG. 4 shown, can not oppose. The asymmetry of the external teeth 17 ensures that rotation of the control shaft 30 along the desired rotational direction S is possible independently of operation of the manual winding device 10, whether by a motor drive of the circuit breaker or other engagement; a feedback to the actuator 11 in the case of Maloperation of the circuit breaker is thus reliably prevented.
While the invention has been further illustrated and described in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations on the subject matter of the claims may be derived therefrom by those skilled in the art.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
HandaufzugseinrichtungManual winding facility
1111
Betätigungseinrichtungactuator
1212
Wippeseesaw
1313
Wippenachserocker axis
13a13a
Drehfedertorsion spring
1414
Schwenkachseswivel axis
1515
Rastklinkelatch
1616
Positionierfederpositioning spring
1717
Außenverzahnungexternal teeth
1818
Rastscheibelocking disc
1919
Anschlagattack
19a19a
LanglochLong hole
19b19b
Bolzenbolt
2020
FederspeicherantriebSpring operating mechanism
2121
Federfeather
21a21a
unteres Federendelower spring end
21b21b
oberes Federendeupper spring end
2222
Befestigungsbolzenmounting bolts
2323
Exzenterelementeccentric
3030
Schaltwelleshift shaft
4040
RücklaufsperreBackstop
4141
Zahnradgear
SS
SolldrehrichtungSet direction of rotation

Claims (11)

  1. Electrical circuit breaker having a stored-energy spring drive (20) which has a spring (21), and having a manual winding device (10) which is suitable for manually tensioning the spring (21),
    wherein
    - the manual winding device (10) has a rotatable latching disc (18), a latching pawl (15) which is arranged next to the latching disc (18), in particular at the end of the latching disc (18), and a manual operating device (11), which is connected to the latching pawl (15), for moving the latching pawl (15),
    - the latching pawl (15) is guided in a controlled manner or can be guided in a controlled manner into a latching tooth system of the latching disc (18) and, by virtue of operation of the operating device (11), the latching pawl (15) can move and as a result the latching disc (18) can rotate along a prespecified desired rotation direction (S) for tensioning the spring (21), and
    - the latching tooth system is asymmetrical in such a way that transmission of force from the latching pawl (15) to the latching disc (18) is possible only along the desired rotation direction (S) and the latching disc (18) slides along the latching pawl (15) when the latching disc (18) rotates along the desired rotation direction (S) more quickly than the latching pawl (15), and
    characterized in that
    the latching tooth system of the latching disc (18) is an external tooth system (17) in the form of an arc of a circle.
  2. Circuit breaker according to Claim 1,
    characterized in that
    the angle of the arc of a circle has an angle value of between 160° and 200° inclusive.
  3. Circuit breaker according to one of preceding Claims 1 and 2,
    characterized in that
    - the latching disc (18) is connected in a rotationally fixed manner to a switching shaft (30) of the circuit breaker,
    - the spring (21) of the stored-energy spring drive (20) forms a switch-on spring, and
    - a first rotation angle range of the switching shaft (30)
    - in the event of rotation along the desired rotation direction (S) - serves to tension the spring (21), and a second rotation angle range of the switching shaft (30) - in the event of rotation along the desired rotation direction (S)
    - serves to relieve the spring (21) of tension and to switch on the circuit breaker.
  4. Circuit breaker according to Claim 3,
    characterized in that
    the external tooth system (17), which is in the form of an arc of a circle, of the latching disc (18) and the latching pawl (15) are arranged relative to one another in such a way that the latching pawl (15) engages or can engage into the external tooth system (17), which is in the form of an arc of a circle, when the switching shaft (30) is in the first rotation angle range.
  5. Circuit breaker according to either of preceding Claims 3 and 4,
    characterized in that
    the external tooth system (17), which is in the form of an arc of a circle, of the latching disc (18) and the latching pawl (15) are arranged relative to one another in such a way that the latching pawl (15) disengages from the external tooth system (17), which is in the form of an arc of a circle, when the switching shaft (30) is in the second rotation angle range.
  6. Circuit breaker according to one of the preceding claims,
    characterized in that
    - the manual winding device (10) has a rocker (12) which can be pivoted about a fixed rocker axis (13) and on which the latching pawl (15) is held such that it can pivot about a pivot axis (14), wherein
    - the pivot axis (14) lies parallel to the rocker axis (13) and, in the event of the rocker (12) being pivoted about the rocker axis (13), the pivot axis (14) of the latching pawl (15) is likewise rotated about the rocker axis (13).
  7. Circuit breaker according to Claim 6,
    characterized in that
    the pivot region of the latching pawl (15) is delimited in the direction of the latching disc (18) by means of a stop.
  8. Circuit breaker according to either of preceding Claims 4 and 5,
    characterized in that
    the manual winding device (10) comprises a positioning spring (16) which generates a spring force on the latching pawl (15) in the direction of the latching disc (18).
  9. Circuit breaker according to one of the preceding claims,
    characterized in that
    - a spring end of the spring (21) of the stored-energy spring drive (20) is fastened to the switching shaft (30) in an eccentric manner - in relation to the shaft axis - and
    - the rotation axis of the latching disc (18) and the axis of the switching shaft (30) are identical.
  10. Circuit breaker according to one of the preceding claims,
    characterized in that
    the circuit breaker has a return movement-limiting mechanism (40) which prevents rotation of the latching disc (18) counter to the desired rotation direction (S).
  11. Circuit breaker according to Claim 10,
    characterized in that
    the return movement-limiting mechanism (40) comprises a gear wheel (41) which is arranged on the switching shaft (30) of the circuit breaker coaxially to the latching disc (18) in a manner fixed in terms of rotation.
EP14808929.5A 2013-12-20 2014-12-02 Electric circuit breaker Active EP3061109B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013227004.6A DE102013227004B4 (en) 2013-12-20 2013-12-20 Electric circuit breaker
PCT/EP2014/076199 WO2015090934A1 (en) 2013-12-20 2014-12-02 Electric circuit breaker

Publications (2)

Publication Number Publication Date
EP3061109A1 EP3061109A1 (en) 2016-08-31
EP3061109B1 true EP3061109B1 (en) 2018-02-28

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ID=52014058

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Country Status (8)

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US (1) US9953788B2 (en)
EP (1) EP3061109B1 (en)
CN (1) CN105830186B (en)
CA (1) CA2934372C (en)
DE (1) DE102013227004B4 (en)
ES (1) ES2671469T3 (en)
MX (1) MX2016008032A (en)
WO (1) WO2015090934A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4386798A2 (en) * 2015-07-03 2024-06-19 General Electric Technology GmbH Drive unit for a medium voltage or high voltage circuit breaker

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689721A (en) * 1971-09-16 1972-09-05 Westinghouse Electric Corp Circuit breaker including ratchet and pawl spring charging means and ratchet teeth damage preventing means
JPS59189519A (en) * 1983-04-12 1984-10-27 富士電機株式会社 Device for driving breaker operation energy storage unit
US4491709A (en) * 1983-05-09 1985-01-01 Square D Company Motor and blade control for high amperage molded case circuit breakers
JPS61288329A (en) 1985-06-17 1986-12-18 三菱電機株式会社 Spring operator for breaker
US5489755A (en) * 1994-03-18 1996-02-06 General Electric Company Handle operator assembly for high ampere-rated circuit breaker
DE4416106A1 (en) * 1994-04-20 1995-10-26 Siemens Ag Clamping device for a spring accumulator
US5883351A (en) * 1997-05-27 1999-03-16 General Electric Company Ratcheting mechanism for industrial-rated circuit breaker
DE102006006907A1 (en) * 2006-02-09 2007-08-16 Siemens Ag Arrangement in particular for actuating a transport pawl and tensioning device for a spring accumulator of an electrical switch with such an arrangement

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DE102013227004B4 (en) 2021-06-02
EP3061109A1 (en) 2016-08-31
ES2671469T3 (en) 2018-06-06
CA2934372A1 (en) 2015-06-25
US20160300681A1 (en) 2016-10-13
DE102013227004A1 (en) 2015-06-25
CN105830186B (en) 2018-12-21
MX2016008032A (en) 2016-10-12
CA2934372C (en) 2018-07-10
WO2015090934A1 (en) 2015-06-25
US9953788B2 (en) 2018-04-24
CN105830186A (en) 2016-08-03

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