EP0096793B1 - Device for the disconnection of the neutral line connected to a circuit breaker for phase contacts - Google Patents

Device for the disconnection of the neutral line connected to a circuit breaker for phase contacts Download PDF

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Publication number
EP0096793B1
EP0096793B1 EP83105344A EP83105344A EP0096793B1 EP 0096793 B1 EP0096793 B1 EP 0096793B1 EP 83105344 A EP83105344 A EP 83105344A EP 83105344 A EP83105344 A EP 83105344A EP 0096793 B1 EP0096793 B1 EP 0096793B1
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EP
European Patent Office
Prior art keywords
neutral line
disconnecting device
line disconnecting
contact spring
phase contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83105344A
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German (de)
French (fr)
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EP0096793A3 (en
EP0096793A2 (en
Inventor
Ferdinand Jehnich
Günter Haupt
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP0096793A2 publication Critical patent/EP0096793A2/en
Publication of EP0096793A3 publication Critical patent/EP0096793A3/en
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Publication of EP0096793B1 publication Critical patent/EP0096793B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor

Definitions

  • the invention relates to a neutral conductor disconnecting device which is mechanically coupled to an interrupter device for phase contacts, consisting of an elastically bendable contact spring connecting two connecting terminals, which is permanently mounted on one of the two connecting terminals and can be switched to the second connecting terminal by means of an actuating device a manual control member is formed on an approximately cylindrical bearing body rotatably mounted about a bearing journal.
  • An interruption or switching on of a neutral conductor by means of such a separation device should always take place manually. However, it must be ensured that the neutral conductor disconnecting device is first switched on before the interrupter device for phase contacts. During the switch-off process, it must be prevented that the neutral conductor disconnecting device is switched in front of the interrupter device for phase contacts.
  • the inner structure of the neutral conductor separating device should be designed in a simple manner and consist of a few parts.
  • the invention has for its object to develop a neutral disconnecting device of the type described in such a way that when using a contact spring and an actuating device when closing: the contacts do not require a coil spring susceptible to failure.
  • the contact spring is separated from the second connection terminal in the force-free state and is connected to the actuating device by a bracket which, on the one hand, engages approximately in the middle of the contact spring and, on the other hand, is connected to the bearing body, the connection point in the switched-on position is formed above the bearing pin to form a toggle lever.
  • the bracket achieves a good frictional connection between the actuator and contact spring, so that it can be brought against the spring force to the connection terminal.
  • the toggle lever is used for locking and prevents the contact spring from sliding back.
  • the contacts are welded, they can be opened forcefully through the bracket. Since no additional spring is required, there is no need to compensate for their spring force, so that the neutral conductor disconnecting device works in a force-saving manner.
  • the contact spring is designed to be elastic so that its restoring force in the off position is greater than the frictional force of the actuating device. After opening the toggle lever, the contact spring is automatically and quickly disconnected from the connection terminal due to its spring tension without the influence of external forces.
  • the firmly locked end of the contact spring can be welded to one of the connection terminals in a manner known per se.
  • the free end of the contact spring can be covered with contact material that largely prevents welding with the connection terminal.
  • the actuating device of the neutral conductor separating device can be designed as a cylindrical disk with a radially attached handle arm as an actuating member. The center of the cylindrical disc is then supported on a journal. It can be rotated through an angle between its end positions, the geometry of the housing of the neutral conductor separating device limiting the movement of the handle arm. This makes it possible to connect the contact spring to the actuating device in the form of a toggle lever by means of a bracket.
  • U-shaped bracket For easy setup. it is convenient to form the U-shaped bracket. Its legs can be engaged with a hole in the cylindrical disk of the actuator and with an eyelet in the middle of the contact spring.
  • the bore in the cylindrical disc must be designed so that it is perpendicular to the axis of rotation of the actuating device when the handle arm is in the switch-on position at the attachment point. This results in a simple construction of a toggle lever.
  • the mechanical coupling of the neutral conductor separating device to an interrupter device for phase contacts can be achieved in that the manual actuating element of the neutral conductor separating device engages over the roof actuating element in the switched-off position and has a protruding configuration in the switched-off position. If this projection extends essentially up to the housing of the neutral conductor separating device, it is ensured that the manual operating element of the neutral conductor separating device is always switched on before the manual operating element of the interrupter device for phase contacts.
  • a coupling is known for mechanically connected line circuit breakers and residual current circuit breakers (DE-B No. 1280382).
  • the manual actuators of the neutral conductor separating device and the interrupter device for phase contacts can also be rigidly ge be coupled, in which case the switch-on angle of the actuating element of the neutral conductor separating device should be selected to be smaller than the switch-on angle of the actuating element of the interrupter device for phase contacts. This also ensures that the neutral conductor disconnection device is always switched on in front of the interrupter device for phase contacts.
  • Another version for coupling the actuating devices of the neutral conductor disconnecting device and the interrupter device for phase contacts works with a push button. It has a pin which is connected to the interrupter device for phase contacts and which engages with an elongated hole formed over an angle in the bearing body of the neutral conductor separating device.
  • the push button makes it possible to switch off the neutral conductor separating device and also the interrupter device for phase contacts manually more quickly than by means of a manual actuator.
  • An actuating device consists of a manual actuating member 5, which is formed on a bearing body 6. This cylindrical bearing body 6 is rotatable about a bearing pin 7 by a fixed angle. A bracket 8 starts from a bore 9 in the bearing body 6 and ends in an eyelet 10 at the center of the contact spring 4. When the contact spring 4 abuts the connecting terminal 3, the bore 9 is located in the bearing body 6 above the bearing pin 7. Bracket 8 and bearing body 6 form a toggle lever which can firmly lock the contact spring 4 on the connecting terminal 3.
  • Fig. 2 shows a partial view of the housing 11 of an interrupter device for phase contacts with the manual actuator 12 in the off position.
  • the manual operating element 5 of the neutral conductor separating device is designed such that it engages over the manual operating element 12 of the interrupter device in a roof-shaped and projecting manner.
  • the projection 13 extends as far as the housing 11. Therefore, the manual control element 5 of the neutral disconnecting device can only be switched on in front of the manual control element 12 of the interrupter device, as is necessary for safety reasons.
  • FIG. 3 shows the bracket 8 of the neutral conductor separating device according to FIG. 1 alone. In its upper part, it has a lateral bend 14 to bypass the bearing journal 7.
  • Fig. 4 shows the bracket 8 of FIG. 3 in side view.
  • the leg 15 of the U-shaped bracket 8 is connected to the connection point in the bearing body 6, z. B. the bore 9 in the bearing body 6 according to FIG. 1 in engagement.
  • the leg 16 is mounted in the eyelet 10 at the center of the contact spring 4 according to FIG. 1.
  • FIG. 5 illustrates another embodiment of the neutral conductor separation device according to FIG. 1. It is connected to a breaker device for phase contacts via a pin 17. This pin 17 is in engagement with an elongated hole 18 formed over an angle in the bearing body 19 of the neutral conductor separating device e . A coupling lug 20 is formed on the bearing body 19, on which a push button 21 can exert a force. The remaining structure corresponds to that of FIG. 1.

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

Die Erfindung betrifft eine Nulleiter-Trennvorrichtung, die mechanisch mit einer Unterbrechereinrichtung für Phasenkontakte gekoppelt ist, bestehend aus einer elastisch biegbaren, zwei Anschlussktemmen verbindenden Kontaktfeder, die an einer der beiden Anschlussklemmen fest montiert und mit der zweiten Anschlussklemme mittels einer Betätigungsvorrichtung zu schalten ist, bei der ein Handbetätigungsglied an einem um einen Lagerzapfen drehbar gelagerten, etwa zylindrischen Lagerkörper ausgebildet ist.The invention relates to a neutral conductor disconnecting device which is mechanically coupled to an interrupter device for phase contacts, consisting of an elastically bendable contact spring connecting two connecting terminals, which is permanently mounted on one of the two connecting terminals and can be switched to the second connecting terminal by means of an actuating device a manual control member is formed on an approximately cylindrical bearing body rotatably mounted about a bearing journal.

Eine Unterbrechung oder Einschaltung eines Nulleiters durch eine derartige Trennvorrichtung soll immer manuell erfolgen. Dabei muss aber gewährleistet sein, dass vor der Unterbrechereinrichtung für Phasenkontakte zuerst die Nulleiter-Trennvorrichtung eingeschaltet wird. Bei dem Ausschaltvorgang muss verhindert werden, dass die Nulleiter-Trennvorrichtung vor der Unterbrechereinrichtung für Phasenkontakte geschaltet wird. Der innere Aufbau der Nulleiter-Trennvorrichtung soll in einfacher Weise ausgeführt sein und aus wenigen Teilen bestehen.An interruption or switching on of a neutral conductor by means of such a separation device should always take place manually. However, it must be ensured that the neutral conductor disconnecting device is first switched on before the interrupter device for phase contacts. During the switch-off process, it must be prevented that the neutral conductor disconnecting device is switched in front of the interrupter device for phase contacts. The inner structure of the neutral conductor separating device should be designed in a simple manner and consist of a few parts.

Es ist weiter bekannt, die Betätigungsglieder der Nuneiter-Trennvorrichtung und der Unterbrechereinrichtung für Phasenkontakte mechanisch so zu koppeln, dassder Nulleiter immer lastfrei geschaltet wird (CH-A Nr. 408175). Weiterhin ist bekannt, eine N.ulleiter-Trennvorrichtung so; aufzubauen, dass die beiden Anschlussklemmendurch eine Kontaktfeder miteinander verbunden werden können- Die Kontaktfeder ist dabei an einer Anschlussklemme fest montiert und wird im entspannten Zustand mittels einer Schraubenfeder gegen die zweite Anschlussklemme gedrückt. Das Öffnen der Nulleiter-Trennvorrichtung erfolgt durch einen Kontaktarm, der eine Kraft auf die Kontaktfeder ausübt, so dass sie ausgelenkt wird. Wenn diese Kraft nicht mehr auf die Kontaktfeder einwirkt, erfolgt, unterstützt durch die Schraubenfeder, eine Rückstellung der Kontaktfeder, und die Nulleiter-Trennvorrichtung wird geschlossen.It is also known to mechanically couple the actuators of the Nuneiter isolating device and the interrupter device for phase contacts in such a way that the neutral conductor is always switched load-free (CH-A No. 408175). Furthermore, it is known to have a neutral conductor separating device; that the two connection terminals can be connected to each other by a contact spring - the contact spring is firmly attached to a connection terminal and is pressed against the second connection terminal in the relaxed state by means of a coil spring. The neutral conductor separating device is opened by a contact arm which exerts a force on the contact spring so that it is deflected. When this force no longer acts on the contact spring, the coil spring resets the contact spring and the neutral conductor disconnector is closed.

Der Erfindung liegt die Aufgabe zugrunde, eine Nulleiter-Trennvorrichtung der eingangs geschilderten Art so weiterzubilden, dass sie bei Einsatz einer Kontaktfeder und einer Betätigungseinrichtung beim Schliessen:der Kontakte ohne eine störanfällige Schraubenfeder auskommt.The invention has for its object to develop a neutral disconnecting device of the type described in such a way that when using a contact spring and an actuating device when closing: the contacts do not require a coil spring susceptible to failure.

Diese Aufgabe wird dadurch gelöst, dass die Kontaktfeder im kräftefreien Zustand von der zweiten Anschlussklemme getrennt und mit der Betätigungsvorrichtung durch einen Bügel verbunden ist, der einerseits etwa in der Mitte der Kontaktfeder angreift und andererseits mit dem Lagerkörper verbunden ist, wobei die Verbindungsstelle in der Einschaltstellung oberhalb des Lagerzapfens unter Bildung eines Kniehebels ausgebildet ist.This object is achieved in that the contact spring is separated from the second connection terminal in the force-free state and is connected to the actuating device by a bracket which, on the one hand, engages approximately in the middle of the contact spring and, on the other hand, is connected to the bearing body, the connection point in the switched-on position is formed above the bearing pin to form a toggle lever.

Der Bügel erzielt einen guten Kraftschluss zwischen Betätigungsglied und Kontaktfeder, so dass diese gegen ihre Federkraft an die Anschlussklemme herangeführt werden kann. Der Kniehebel dient der Arretierung und verhindert ein Zurückgleiten der Kontaktfeder.The bracket achieves a good frictional connection between the actuator and contact spring, so that it can be brought against the spring force to the connection terminal. The toggle lever is used for locking and prevents the contact spring from sliding back.

Sollten die Kontakte einmal verschweisst sein, lassen siesich durch den Bügel kraftvoll öffnen. Da keine zusätzliche Feder benötigt wird, braucht man ihre Federkraft nicht zu kompensieren, so dass die Nulleiter-Trennvorrichtung dabei kraftsparend arbeitet.If the contacts are welded, they can be opened forcefully through the bracket. Since no additional spring is required, there is no need to compensate for their spring force, so that the neutral conductor disconnecting device works in a force-saving manner.

Die Kontaktfeder ist so elastisch ausgebildet, dass ihre Rückstellkraft in die Ausschaltstellung grösser als die Reibungskraft der Betätigungsvorrichtung ist. Nach Öffnen des Kniehebels wird die Kontaktfeder, bedingt durch ihre Federspannung, ohne Einwirkung äusserer Kräfte von der Anschlussklemme selbsttätig rasch getrennt.The contact spring is designed to be elastic so that its restoring force in the off position is greater than the frictional force of the actuating device. After opening the toggle lever, the contact spring is automatically and quickly disconnected from the connection terminal due to its spring tension without the influence of external forces.

Das fest arretierte Ende der Kontaktfeder kann in an sich bekannter Weise an einer der Anschlussklemmen angeschweisst sein. Das freie Ende der Kontaktfeder lässt sich mit Kontaktmaterial belegen, das weitgehend ein Verschweissen mit der Anschlussklemme verhindert.The firmly locked end of the contact spring can be welded to one of the connection terminals in a manner known per se. The free end of the contact spring can be covered with contact material that largely prevents welding with the connection terminal.

Die Betätigungsvorrichtung der Nulleiter-Trennvorrichtung kann als zylindrische Scheibe mit einem radial angebrachten Griffarm als Betätigungsglied ausgebildet sein. Die zylindrische Scheibe ist dann in ihrem Mittelpunkt auf einem Lagerzapfen gelagert. Sie ist zwischen ihren Endstellungen um einen Winkel drehbar, wobei die Geometrie des Gehäuses der Nulleiter-Trennvorrichtung die Bewegung des Griffarmes begrenzt. Dadurch wird ermöglicht, die Kontaktfeder mittels eines Bügels mit der Betätigungsvorrichtung in Form eines Kniehebels zu verbinden.The actuating device of the neutral conductor separating device can be designed as a cylindrical disk with a radially attached handle arm as an actuating member. The center of the cylindrical disc is then supported on a journal. It can be rotated through an angle between its end positions, the geometry of the housing of the neutral conductor separating device limiting the movement of the handle arm. This makes it possible to connect the contact spring to the actuating device in the form of a toggle lever by means of a bracket.

Für einen einfachen Aufbau. ist es günstig, den Bügel U-förmig auszubilden. Seine Schenkel lassen sich mit einer Bohrung in der zylindrischen Scheibe der Betätigungsvorrichtung sowie mit einer Öse an der Mitte der Kontaktfeder in Eingriff bringen. Die Bohrung in der zylindrischen Scheibe ist so auszubilden, dass sie sich senkrecht über der Drehachse der Betätigungsvorrichtung befindet, wenn der Griffarm in Einschaltstellung am Anschlagpunkt ist. Hierdurch erzielt man einen einfachen Aufbau eines Kniehebels.For easy setup. it is convenient to form the U-shaped bracket. Its legs can be engaged with a hole in the cylindrical disk of the actuator and with an eyelet in the middle of the contact spring. The bore in the cylindrical disc must be designed so that it is perpendicular to the axis of rotation of the actuating device when the handle arm is in the switch-on position at the attachment point. This results in a simple construction of a toggle lever.

Die mechanische Koppelung der Nulleiter-Trennvorrichtung mit einer Unterbrechereinrichtung für Phasenkontakte lässt sich dadurch erzielen, dass das Handbetätigungsglied der Nulleiter-Trennvorrichtung das Handbetätigungsglied der Unterbrechereinrichtung für Phasenkontakte in der Ausschaltstellung dachförmig übergreift und vorspringend ausgebildet ist. Wenn sich dieser Vorsprung im wesentlichen bis zum Gehäuse der Nulleiter-Trennvorrichtung erstreckt, ist gewährleistet, dass das Handbetätigungsglied der Nulleiter-Trennvorrichtung stets vor dem Handbetätigungsglied der Unterbrechereinrichtung für Phasenkontakte eingeschaltet wird. Abgesehen von dem dachförmigen Fortsatz des Handbetätigungsgliedes und seiner speziellen Wirkungsweise ist eine derartige Koppelung bei mechanisch verbundenen Leitungsschutzschaltern und Fehlerstromschutzschaltern bekannt (DE-B Nr. 1280382).The mechanical coupling of the neutral conductor separating device to an interrupter device for phase contacts can be achieved in that the manual actuating element of the neutral conductor separating device engages over the roof actuating element in the switched-off position and has a protruding configuration in the switched-off position. If this projection extends essentially up to the housing of the neutral conductor separating device, it is ensured that the manual operating element of the neutral conductor separating device is always switched on before the manual operating element of the interrupter device for phase contacts. Apart from the roof-shaped extension of the manual control element and its special mode of operation, such a coupling is known for mechanically connected line circuit breakers and residual current circuit breakers (DE-B No. 1280382).

Die Handbetätigungsglieder der Nulleiter-Trennvorrichtung und der Unterbrechereinrichtung für Phasenkontakte können auch starr gekoppelt sein, wobei dann der Einschaltwinkel des Betätitungsgliedes der Nulleiter-Trennvorrichtung kleiner zu wählen ist als der Einschaltwinkel des Betätigungsgliedes der Unterbrechereinrichtung für Phasenkontakte. Auch auf diese Weise ist gewährleistet, dass die Nulleiter-Trennvorrichtung stets vor der Unterbrechereinrichtung für Phasenkontakte eingeschaltet wird.The manual actuators of the neutral conductor separating device and the interrupter device for phase contacts can also be rigidly ge be coupled, in which case the switch-on angle of the actuating element of the neutral conductor separating device should be selected to be smaller than the switch-on angle of the actuating element of the interrupter device for phase contacts. This also ensures that the neutral conductor disconnection device is always switched on in front of the interrupter device for phase contacts.

Eine weitere Ausführung für die Koppelung der Betätigungsvorrichtungen von Nulleiter-Trennvorrichtung und Unterbrechereinrichtung für Phasenkontakte arbeitet mit einem Druckknopf. Sie weist einen Zapfen auf, der mit der Unterbrechereinrichtung für Phasenkontakte verbunden und mit einem über einen Winkel ausgeformten Längloch im Lagerkörper der Nulleiter-Trennvorrichtung in Eingriff ist. Der Druckknopf ermöglicht es, die Nulleiter-Trennvorrichtung und auch die Unterbrechereinrichtungfür Phasenkontakte manuell schneller auszuschalten als mittels eines Handbetätigungsgliedes.Another version for coupling the actuating devices of the neutral conductor disconnecting device and the interrupter device for phase contacts works with a push button. It has a pin which is connected to the interrupter device for phase contacts and which engages with an elongated hole formed over an angle in the bearing body of the neutral conductor separating device. The push button makes it possible to switch off the neutral conductor separating device and also the interrupter device for phase contacts manually more quickly than by means of a manual actuator.

Die Erfindung soll anhand von in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispielen näher erläutert werden:

  • Fig. 1 zeigt die Nulleiter-Trennvorrichtung im Einschaltzustand, also bei geschlossenen Kontakten.
  • Fig. 2 zeigt abgebrochen wiedergegeben eine Unterbrechereinrichtung für Phasenkontakte, deren Handbetätigungsglied in Ausschaltstellung steht, und dieses dachförmig übergreifend das Handbetätigungsglied der Nulleiter-Trennvorrichtung.
  • Fig. 3 zeigt einen Bügel für die Nulleiter-Trennvorrichtung nach Fig. 1.
  • Fig. 4 gibt den Bügel nach Fig. 3 in Seitenansicht wieder.
  • Fig. 5 zeigt eine Nulleiter-Trennvorrichtung in der Ausführung mit einem Druckknopf.
The invention will be explained in greater detail on the basis of exemplary embodiments shown roughly schematically in the drawing:
  • Fig. 1 shows the neutral disconnecting device in the switched-on state, that is to say with the contacts closed.
  • Fig. 2 shows a broken view of an interrupter device for phase contacts, the manual control element is in the off position, and this roof-like overlapping the manual control element of the neutral disconnecting device.
  • FIG. 3 shows a bracket for the neutral conductor separating device according to FIG. 1.
  • Fig. 4 shows the bracket of FIG. 3 in side view.
  • Fig. 5 shows a neutral separating device in the version with a push button.

Die Nulleiter-Trennvorrichtung nach Fig. 1 besteht im wesentlichen aus einem Gehäuse 1 und zwei Anschlussklenimen 2 und 3, die durch eine Kontaktfeder 4 verbunden werden können. Die Kontaktfeder 4 ist an der Anschlussklemme 2 angeschweisst. Das freie Ende der Kontaktfeder 4 ist mit Kontaktmaterial belegt. Im kräftefreien Zustand ist die Kontaktfeder 4 von der Anschlussklemme 3 räumlich getrennt. Eine Betätigungsvorrichtung besteht aus einem Handbetätigungsglied 5, das an einem Lagerkörper 6 ausgebildet ist. Dieser zylindrische Lagerkörper 6 ist um einen Lagerzapfen 7 um einen festen Winkel drehbar angeordnet. Ein Bügel 8 geht von einer Bohrung 9 im Lagerkörper 6 aus und endet in einer Öse 10 an der Mitte der Kontaktfeder 4. Wenn die Kontaktfeder 4 an der Anschlussklemme 3 anliegt, befindet sich die Bohrung 9 im Lagerkörper 6 oberhalb des Lagerzapfens 7. Bügel 8 und Lagerkörper 6 bilden einen Kniehebel, der die Kontaktfeder 4 an derAnschlussklemme 3 fest arretieren kann.1 essentially consists of a housing 1 and two connection cycles 2 and 3, which can be connected by a contact spring 4. The contact spring 4 is welded to the connection terminal 2. The free end of the contact spring 4 is covered with contact material. In the force-free state, the contact spring 4 is spatially separated from the connection terminal 3. An actuating device consists of a manual actuating member 5, which is formed on a bearing body 6. This cylindrical bearing body 6 is rotatable about a bearing pin 7 by a fixed angle. A bracket 8 starts from a bore 9 in the bearing body 6 and ends in an eyelet 10 at the center of the contact spring 4. When the contact spring 4 abuts the connecting terminal 3, the bore 9 is located in the bearing body 6 above the bearing pin 7. Bracket 8 and bearing body 6 form a toggle lever which can firmly lock the contact spring 4 on the connecting terminal 3.

Fig. 2 zeigt eine Teilansicht des Gehäuses 11 einer Unterbrechereinrichtung für Phasenkontakte mit dem Handbetätigungsglied 12 in Ausschaltstellung. Das Handbetätigungsglied 5 der Nulleiter-Trennvorrichtung ist so ausgebildet, dass es das Handbetätigungsglied 12 der Unterbrechereinrichtung dachförmig und vorspringend übergreift. Der Vorsprung 13 erstreckt sich dabei bis zum Gehäuse 11. Deshalb kann das Handbetätigungsglied 5 der Nulleiter-Trennvorrichtung nur vor dem Handbetätigungsglied 12 der Unterbrechereinrichtung eingeschaltet werden, wie es aus Sicherheitsgründen erforderlich ist.Fig. 2 shows a partial view of the housing 11 of an interrupter device for phase contacts with the manual actuator 12 in the off position. The manual operating element 5 of the neutral conductor separating device is designed such that it engages over the manual operating element 12 of the interrupter device in a roof-shaped and projecting manner. The projection 13 extends as far as the housing 11. Therefore, the manual control element 5 of the neutral disconnecting device can only be switched on in front of the manual control element 12 of the interrupter device, as is necessary for safety reasons.

Fig. 3 gibt den Bügel 8 der Nulleiter-Trennvorrichtung nach Fig. 1 allein wieder. In seinem oberen Teil weist er zur Umgehung des Lagerzapfens 7 eine seitliche Biegung 14 auf. Fig. 4 zeigt den Bügel 8 nach Fig. 3 in Seitenansicht. Der Schenkel 15 des U-förmig gebogenen Bügels 8 ist mit der Verbindungsstelle im Lagerkörper 6, z. B. der Bohrung 9 im Lagerkörper 6 gemäss Fig. 1 im Eingriff. Der Schenkel 16 ist in der Öse 10 an der Mitte der Kontaktfeder 4 gemäss Fig. 1 gelagert.FIG. 3 shows the bracket 8 of the neutral conductor separating device according to FIG. 1 alone. In its upper part, it has a lateral bend 14 to bypass the bearing journal 7. Fig. 4 shows the bracket 8 of FIG. 3 in side view. The leg 15 of the U-shaped bracket 8 is connected to the connection point in the bearing body 6, z. B. the bore 9 in the bearing body 6 according to FIG. 1 in engagement. The leg 16 is mounted in the eyelet 10 at the center of the contact spring 4 according to FIG. 1.

Fig. 5 veranschaulicht eine andere Ausführungsform der Nulleiter-Trennvorrichtung nach Fig. 1. Sie ist über einen Zapfen 17 mit einer Unterbrechereinrichtung für Phasenkontakte verbunden. Dieser Zapfen 17 ist mit einem über einen Winkel ausgeformten Langloch 18 im Lagerkörper 19 der Nulleiter-Trennvorrichtungein Eingriff. Am Lagerkörper 19 ist eine Koppelungsnase 20 ausgebildet, auf die ein Druckknopf 21 eine Kraft ausüben kann. Der übrige Aufbau entspricht dem nach Fig. 1.FIG. 5 illustrates another embodiment of the neutral conductor separation device according to FIG. 1. It is connected to a breaker device for phase contacts via a pin 17. This pin 17 is in engagement with an elongated hole 18 formed over an angle in the bearing body 19 of the neutral conductor separating device e . A coupling lug 20 is formed on the bearing body 19, on which a push button 21 can exert a force. The remaining structure corresponds to that of FIG. 1.

Wenn die Phase unterbrochen wird, bewegt sich der Zapfen 17 dem Langloch 18 entlang. Wird jedoch die Nulleiter-Trennvorrichtung manuell ausgeschaltet, so nimmt der Lagerkörper 19 den Zapfen 17 mit und schaltet so auch die Unterbrechereinrichtung für Phasenkontakte aus.Um den Nulleiter und damit gekoppelt auch die Phasenkontakte zu unterbrechen, ist ein Druckknopf 21 vorhanden, der oberhalb einer am Lagerkörper 19 i ausgebildeten Koppelungsnase 20 angeordnet ist. Nach Betätigung des Druckknopfes 21 wird der Kniehebel aus Bügel 8 und Lagerkörper 19 gelöst, so dass sich die Kontaktfeder 4 entspannen kann und die Nulleiter-Trennvorrichtung öffnet. Bei dem manuellen Einschalten der Unterbrechereinrichtung für Phasenkontakte wird der Zapfen 17 mitbewegt. Bei zuvor ausgeschalteter Nulleiter-Trennvorrichtung nimmt der in das Langloch 18 eingreifende Zapfen 17 den Lagerkörper 19 mit, dreht ihn und schliesst den Kniehebel und damit die Kontaktfeder 4.When the phase is interrupted, the pin 17 moves along the slot 18. However, if the neutral separating device is switched off manually, the bearing body 19 takes the pin 17 with it and thus also switches off the interrupter device for phase contacts Bearing body 19 i trained coupling lug 20 is arranged. After actuation of the push button 21, the toggle lever is released from the bracket 8 and the bearing body 19, so that the contact spring 4 can relax and the neutral conductor separating device opens. When the interrupter device for phase contacts is switched on manually, the pin 17 is also moved. When the neutral conductor separating device is switched off beforehand, the pin 17 engaging in the elongated hole 18 takes the bearing body 19 with it, rotates it and closes the toggle lever and thus the contact spring 4.

Claims (9)

1. A neutral line disconnecting device which is mechanically coupled to a contact breaker for phase contacts, consisting of an elastically flexible contact spring (4) which connects two connection terminals (2, 3) and which is permanently mounted at one of the two connection terminals (2) and can be connected to the second connection terminal (3) by means of an actuating device, wherein a manual actuating member (5) adjoins an approximately cylindrical bearing body (6) which is mounted so as to be rotatable about a pivot (7), characterised in that, in the unstressed state, the contact spring (4) is separated from the second connection terminal (3) and is connected to the actuating device by a curved link (8) which, at one end, acts on the centre of the contact spring (4) and, at the other end, is connected to the bearing body (6), the connection point (9) in the switched-on position lying above the pivot (7), thus forming a toggle joint.
2. A neutral line disconnecting device as claimed in Claim 1, characterised in that the contact spring (4) is of elastic formation such that the force returning it to the switched-off position is greater than the frictional force of the actuating device.
3. A neutral line disconnecting device as claimed in Claim 1, characterised in that the actuating device consists of a cylindrical disc as bearing body (6), with a radially attached gripping arm as the manual actuating member (5) which, mounted at its centre on a pivot (7), can be rotated through an angle between the two end positions, the geometry of the housing (1) correspondingly limiting the movement of the gripping arm (5).
4. A neutral line disconnecting device as claimed in one of Claims 1 to 3, characterised in that the curved link (8) is of U-shape and the arms (15,16) thereof engage with a bore (9) in the bearing body (6) of the actuating device and with a kink (10) at the centre of the contact spring (4), the upper part of the curved link (8) having a lateral bend (14) in order to pass round the pivot (7) of the actuating device.
5. A neutral line disconnecting device as claimed in Claim 1, where, in the switch-on direction, the manual actuating member (12) of the contact breaker for phase contacts abuts against an attachment to the manual actuating mem-' ber (5) of the neutral line disconnecting device, characterised in that, in the switched-off position, the manual actuating member (5) of the neutral line disconnecting device engages over, in the manner of a roof, and projects beyond, the manual actuating member (12) of the contact breaker for phase contacts, this projection (13) basically extending to the housing (11) of the contact breaker for phase contacts.
6. A neutral line disconnecting device as claimed in Claim 1, characterised in that the manual actuating members (5, 12) of the neutral line disconnecting device and of the contact breaker for phase contacts are rigidly coupled together, andthatthe switch-on angle of the manual actuating member (5) of the neutral line disconnecting device is smaller than the switch-on angle of the manual actuating member (12) of the contact breaker for phase contacts.
7. A neutral line disconnecting device as claimed in Claim 1, characterised in that a pivot (17) which is connected to the contact breaker for phase contacts engages with an angled slot (18) in the bearing body (19) of the neutral line disconnecting device, and that a pushbutton (21) is arranged above a coupling projection (20) which forms part of the bearing body (19).
8. A neutral line disconnecting device as claimed in one of Claims'1 to 4, characterised in that one end of the contact spring (4) is welded to one of the connection terminals (2).
9. A neutral line disconnecting device as claimed in one of Claims 1 to 4, characterised in that the free end of the contact spring (4) is coated with contact material.
EP83105344A 1982-06-11 1983-05-30 Device for the disconnection of the neutral line connected to a circuit breaker for phase contacts Expired EP0096793B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8217205U DE8217205U1 (en) 1982-06-11 1982-06-11 Neutral conductor disconnection device, coupled with an interrupter device for phase contacts
DE8217205U 1982-06-11

Publications (3)

Publication Number Publication Date
EP0096793A2 EP0096793A2 (en) 1983-12-28
EP0096793A3 EP0096793A3 (en) 1984-08-01
EP0096793B1 true EP0096793B1 (en) 1986-03-12

Family

ID=6741046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105344A Expired EP0096793B1 (en) 1982-06-11 1983-05-30 Device for the disconnection of the neutral line connected to a circuit breaker for phase contacts

Country Status (3)

Country Link
EP (1) EP0096793B1 (en)
JP (1) JPS595515A (en)
DE (2) DE8217205U1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511278A1 (en) * 1985-03-28 1986-10-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Neutral-conductor interrupter device
DE8816238U1 (en) * 1988-12-31 1989-03-02 Priesemuth, Wolfgang, 25524 Breitenburg Push button switch
DE4029690A1 (en) * 1990-08-04 1992-02-06 Marquardt Gmbh Actuator for main switch - has connecting rod coupled between actuator rocker and remote switch unit
DE4137890C2 (en) * 1991-11-18 1994-09-22 Kostal Leopold Gmbh & Co Kg Electrical switch arrangement
JP4126866B2 (en) * 2000-11-06 2008-07-30 富士電機機器制御株式会社 Circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB933273A (en) * 1959-12-30 1963-08-08 Walsall Conduits Ltd Improvements relating to electric circuit breakers
AT337804B (en) * 1975-06-05 1977-07-25 Felten & Guilleaume Ag Oester CIRCUIT BREAKER IN SHELL DESIGN WITH NEUTRAL DISCONNECTOR
DE2846213A1 (en) * 1978-10-24 1980-05-08 Geyer Gmbh & Co Christian Narrow fitting electrical switch of built-in type - consists of two halves separated by insulating partition, with set of contacts in each half, operated by common element
NL192589C (en) * 1980-01-04 1997-10-03 Abb Componenten B V Switching machine.
DE3014314A1 (en) * 1980-04-15 1981-10-22 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Neutral-wire separator for domestic electric installation - has two-armed switching lever for actuating single-pole interrupter contact

Also Published As

Publication number Publication date
EP0096793A3 (en) 1984-08-01
EP0096793A2 (en) 1983-12-28
DE3362526D1 (en) 1986-04-17
DE8217205U1 (en) 1982-09-09
JPS595515A (en) 1984-01-12

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