EP0883885B1 - Power switch with a spring energy store - Google Patents

Power switch with a spring energy store Download PDF

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Publication number
EP0883885B1
EP0883885B1 EP97915316A EP97915316A EP0883885B1 EP 0883885 B1 EP0883885 B1 EP 0883885B1 EP 97915316 A EP97915316 A EP 97915316A EP 97915316 A EP97915316 A EP 97915316A EP 0883885 B1 EP0883885 B1 EP 0883885B1
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EP
European Patent Office
Prior art keywords
spring
circuit breaker
springs
energy store
parallel
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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 - Lifetime
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EP97915316A
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German (de)
French (fr)
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EP0883885A1 (en
Inventor
Ludvik Godesa
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor

Definitions

  • the invention relates to a circuit breaker with a Contact apparatus, a switching mechanism for actuating the Contact apparatus as well as with a spring accumulator Storage of a drive energy for the switching mechanism, the spring accumulator on a supporting structure of the circuit breaker is supported and comprises a first spring.
  • a circuit breaker of this type is through the DE 35 42 746 A1 has become known.
  • the spring accumulator forms an independent building block, which after its completion is installed in the circuit breaker and at Need also against a spring accumulator with the same outer Dimensions and connection facilities, but a different one Equipped with springs can be replaced. To this It is possible to use circuit breakers with a more or less large number of mechanically parallel springs equip.
  • circuit breakers with very different energy requirements and different force-displacement characteristics, are in practice spring loaded with accordingly different properties needed. Based on this is the object of the invention, a design of a Specify spring accumulator that is suitable for circuit breakers different systems, d. H. e.g. B. with in air or in Suitable for vacuum switching contacts and beyond for low and medium voltage circuit breakers suitable is.
  • the spring accumulator has at least one pivot bearing for the Movement of another spring in the direction of the action of the has first spring-transmitting Umlankorgan and that Deflector with the first spring either on their End facing pivot bearing or at the end of the pivot bearing opposite end is connectable.
  • the deflection element thus creates the possibility with unchanged spatial arrangement and quality of the Springs a mechanical parallel connection or mechanical To effect series connection of the springs. So that the spring accumulator to various types of circuit breakers wider limits than the previous ones allow known spring mechanism.
  • the pivot bearing can be on a side of the first spring arranged support wall may be attached. This can be useful one belonging to the structure of the circuit breaker Be a bulkhead.
  • the deflecting member can have two arms Lever be formed and the further spring can be parallel to be arranged the first spring.
  • the design of a spring accumulator according to the invention is not limited to an arrangement with two springs, but can be expanded systematically. This can be achieved be that at least one additional spring and one appropriate number of swivel bearings for deflection elements are provided.
  • the additional spring or each additional spring can be in one with one of the aforementioned support walls connectable spring support be supported.
  • Figure 1 shows schematically a low-voltage circuit breaker with a spring mechanism.
  • FIG. 2 A schematic partial front view of the circuit breaker 1 shows FIG. 2.
  • Figures 3 and 4 show a spring accumulator with two parallel springs in the tensioned or in the relaxed Status.
  • FIG. 5 shows a spring accumulator with three in parallel arranged springs in the relaxed state, with two of the Springs connected in parallel and the parallel connection in series with the third feather.
  • Figures 6 and 7 is also a spring accumulator three parallel springs shown, but in the all springs are mechanically connected in parallel. It shows 6 shows the tensioned state and FIG. 7 shows the relaxed state.
  • the low-voltage circuit breaker shown schematically in FIG. 1 1 has at least one contact apparatus 2, the fixed switch contacts 3 and movable contact lever 4 has.
  • the contact lever 4 can be pivoted on one mounted contact lever carrier 5 attached by means of a Coupling rod 6 through a selector shaft 7 and sitting thereon Drive lever 8 is actuated.
  • the circuit breaker 1 has a structure 9 on which a switching mechanism 10 and a Spring 11 are supported.
  • the control shaft 7 belongs to the switching mechanism 10, which in Figure 1 as a block is indicated.
  • the spring accumulator 11 provides the mechanical Energy ready by means of the switching mechanism 10 reshaped and to act on the contact apparatus 2 brought. Details of the power transmission from the Spring accumulators 11 for the contact apparatus 2 are, for example the above-mentioned DE 35 42 746 A1.
  • FIG. 2 shows that the circuit breaker 1 is formed three-pole and accordingly three Contact apparatus 2 is open.
  • the switching mechanism 10 is between support plates 12 and 13 arranged to the structure 9 of the circuit breaker 1 belong to or are connected to it.
  • the spring accumulator 11 comprises two springs 14 and 15 arranged in parallel, one of which the first spring 14 between the support plates 12 and 13 and the further spring 15 on the outside of the support plate 12 is appropriate. Both springs 14 and 15 are helical compression springs.
  • a storage clutch 33 connects the switching mechanism 10 and the spring mechanism 11. Further details different designs of the spring accumulator 11 will now be explained with reference to Figures 3 to 7.
  • FIG. 3 there is 12 on an end face of the support plate a pivot bearing 16 is attached, on which a deflecting member 17th is pivotally mounted.
  • the deflection member 17 has the shape a two-armed lever with legs of equal length and serves to connect the springs 14 and 15.
  • the spring 15 is located in a spring support connected to the support plate 12 20 and is supported on the bottom surface. The opposite The end of the spring 15 is near the pivot bearing 16.
  • a shorter coupling rod 21 connects that Deflector 17 with the free end of the spring 15, while a longer coupling rod 22 the other lever arm of the two-armed Lever 17 connects to a spring plate 23 on which the Free end 19 of the spring 14 supports.
  • the fixed abutment for the opposite end 18 of the spring 14 is located near the pivot bearing 16.
  • both springs 14 and 15 mechanically connected in parallel because of the movement the spring 15 is passed to the spring plate 23 on the spring 14 also acts.
  • FIG. 3 it is assumed that the springs 14 and 15 latched in the tensioned state are. After their release, the springs 14 and 15 can Take position as shown in Figure 4, in which the Deflector 17 pivoted clockwise and both springs 14 and 15 are fully or partially relaxed. This matches with the switched on indicated in dashed lines in Figure 1 Position of the contact apparatus 2. Below the spring plate 23 is by an arrow that shown in Figure 1 Storage clutch 33 indicated.
  • one of the coupling rods 21 appropriate short coupling rod is used and this with connected to the upper end 18 of the spring 14, so a mechanical series connection of springs 14 and 15.
  • the further exemplary embodiment according to FIG. 5 represents a spring accumulator with three springs, of which the springs 14 and 15 with the deflector 17 of the arrangement according to the Figures 3 and 4 fully correspond. However, is for Connection of the deflector 17 with the spring 14 a short Coupling rod 24 provided on an upper spring plate 25 attacks.
  • An additional spring 26 is symmetrical arranged and acts on an associated pivot bearing 27 the support plate 13 and an additional deflection member 30 likewise on the spring plate 25 of the middle spring 14 on. In this way, the two outer springs 15 and 26 mechanically connected in parallel while this parallel connection is in series with the middle spring 14.
  • a spring support 28 serves to accommodate the additional spring 26, arranged in mirror image to the spring support 20 and on the support wall 13 is supported.
  • FIGS. 6 and 7 Another exemplary embodiment is shown in FIGS. 6 and 7 shown, in which also three springs 14, 15 and 26 in parallel arrangement are provided.
  • pivot bearing arrangement 16 and 27 for deflectors 17 and 30 available.
  • the coupling rods 31 and 32 are different, which the deflection elements 17 and 30 with the spring plate 23rd connect which faces away from the abutments 16 and 27.
  • all three springs 14, 15 and 26 are mechanical connected in parallel.
  • the coupling rods are aligned 31 and 32 with each other and are therefore indistinguishable.
  • Figure 7 can with relaxed springs 14, 15 and 26 recognize both coupling rods 31 and 32.

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

Description

Die Erfindung betrifft einen Leistungsschalter mit einem Kontaktapparat, einem Schaltmechanismus zur Betätigung des Kontaktapparates sowie mit einem Federspeicher zur Speicherung einer Antriebsenergie für den Schaltmechanismus, wobei der Federspeicher an einem Tragwerk des Leistungsschalters abgestützt ist und eine erste Feder umfaßt.The invention relates to a circuit breaker with a Contact apparatus, a switching mechanism for actuating the Contact apparatus as well as with a spring accumulator Storage of a drive energy for the switching mechanism, the spring accumulator on a supporting structure of the circuit breaker is supported and comprises a first spring.

Ein Leistungsschalter dieser Art ist durch die DE 35 42 746 A1 bekanntgeworden. Der Federspeicher bildet dabei einen eigenständigen Baustein, der nach seiner Fertigstellung in den Leistungsschalter eingebaut wird und der bei Bedarf auch gegen einen Federspeicher mit gleichen äußeren Abmessungen und Anschlußeinrichtungen, jedoch einer anderen Bestückung mit Federn ausgetauscht werden kann. Auf diese Weise ist es möglich, Leistungsschalter mit einer mehr oder weniger großen Anzahl mechanisch parallel geschalteter Federn auszurüsten.A circuit breaker of this type is through the DE 35 42 746 A1 has become known. The spring accumulator forms an independent building block, which after its completion is installed in the circuit breaker and at Need also against a spring accumulator with the same outer Dimensions and connection facilities, but a different one Equipped with springs can be replaced. To this It is possible to use circuit breakers with a more or less large number of mechanically parallel springs equip.

Da es Leistungsschalter mit sehr unterschiedlichem Energiebedarf und unterschiedlichen Kraft-Weg-Kennlinien gibt, werden in der Praxis Federspeicher mit entsprechend unterschiedlichen Eigenschaften benötigt. Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Bauform eines Federspeichers anzugeben, der sich für Leistungsschalter unterschiedlicher Systeme, d. h. z. B. mit in Luft oder im Vakuum schaltendenden Kontakten eignet und der darüber hinaus für Niederspannungs- und Mittelspannungs-Leistungsschalter geeignet ist.Because there are circuit breakers with very different energy requirements and different force-displacement characteristics, are in practice spring loaded with accordingly different properties needed. Based on this is the object of the invention, a design of a Specify spring accumulator that is suitable for circuit breakers different systems, d. H. e.g. B. with in air or in Suitable for vacuum switching contacts and beyond for low and medium voltage circuit breakers suitable is.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß der Federspeicher wenigstens ein Schwenklager für ein die Bewegung einer weiteren Feder in die Richtung der Wirkung der ersten Feder übertragendes Umlankorgan aufweist und daß das Umlenkorgan mit der ersten Feder wahlweise an ihren dem Schwenklager zugewandten Ende oder an ihrem dem Schwenklager abgewandten Ende verbindbar ist.This object is achieved according to the invention in that the spring accumulator has at least one pivot bearing for the Movement of another spring in the direction of the action of the has first spring-transmitting Umlankorgan and that Deflector with the first spring either on their End facing pivot bearing or at the end of the pivot bearing opposite end is connectable.

Durch das Umlenkorgan wird somit die Möglichkeit geschaffen, bei unveränderter räumlicher Anordnung und Beschaffenheit der Federn eine mechanische Parallelschaltung oder mechanische Reihenschaltung der Federn zu bewirken. Damit kann der Federspeicher an Leistungsschalter verschiedener Art in wesentlich weiteren Grenzen angepaßt werden, als dies die bisher bekannten Federspeicher gestatten.The deflection element thus creates the possibility with unchanged spatial arrangement and quality of the Springs a mechanical parallel connection or mechanical To effect series connection of the springs. So that the spring accumulator to various types of circuit breakers wider limits than the previous ones allow known spring mechanism.

Das Schwenklager kann an einer seitlich von der ersten Feder angeordneten Tragwand angebracht sein. Zweckmäßig kann dies eine zu dem Tragwerk des Leistungsschalters gehörende Tragwand sein.The pivot bearing can be on a side of the first spring arranged support wall may be attached. This can be useful one belonging to the structure of the circuit breaker Be a bulkhead.

Im Rahmen der Erfindung kann das Umlenkorgan als zweiarmiger Hebel ausgebildet sein und die weitere Feder kann parallel zu der ersten Feder angeordnet sein.In the context of the invention, the deflecting member can have two arms Lever be formed and the further spring can be parallel to be arranged the first spring.

Die Gestaltung eines Federspeichers nach der Erfindung ist nicht auf eine Anordnung mit zwei Federn beschränkt, sondern läßt sich systematisch erweitern. Dies kann dadurch erreicht werden, daß wenigstens eine zusätzliche Feder und eine entsprechende Anzahl von Schwenklagern für Umlenkorgane vorgesehen sind.The design of a spring accumulator according to the invention is not limited to an arrangement with two springs, but can be expanded systematically. This can be achieved be that at least one additional spring and one appropriate number of swivel bearings for deflection elements are provided.

Die weitere Feder bzw. jede zusätzliche Feder kann in einem mit einer der erwähnten Tragwände verbindbaren Federträger abgestützt sein. Diese Federträger mit zugehöriger Feder bilden Module, durch die der Federspeicher nach Bedarf erweiterbar ist.The additional spring or each additional spring can be in one with one of the aforementioned support walls connectable spring support be supported. This spring support with the associated spring form modules through which the spring accumulator as required is expandable.

Die Erfindung wird im folgenden anhand der in den Figuren dargestellten Ausführungsbeispiele näher erläutert.The invention is described below with reference to the figures illustrated embodiments explained in more detail.

Die Figur 1 zeigt schematisch einen Niederspannungs-Leistungsschalter mit einem Federspeicher.Figure 1 shows schematically a low-voltage circuit breaker with a spring mechanism.

Eine schematische teilweise Frontansicht des Leistungsschalters gemäß der Figur 1 zeigt die Figur 2.A schematic partial front view of the circuit breaker 1 shows FIG. 2.

Die Figuren 3 und 4 zeigen einen Federspeicher mit zwei parallel angeordneten Federn im gespannten bzw. im entspannten Zustand.Figures 3 and 4 show a spring accumulator with two parallel springs in the tensioned or in the relaxed Status.

Die Figur 5 zeigt einen Federspeicher mit drei parallel angeordneten Federn im entspannten Zustand, wobei zwei der Federn parallelgeschaltet und die Parallelschaltung in Reihe mit der dritten Feder liegt. FIG. 5 shows a spring accumulator with three in parallel arranged springs in the relaxed state, with two of the Springs connected in parallel and the parallel connection in series with the third feather.

In den Figuren 6 und 7 ist gleichfalls ein Federspeicher mit drei parallel angeordneten Federn gezeigt, bei dem jedoch alle Federn mechanisch parallel geschaltet sind. Dabei zeigt die Figur 6 den gespannten Zustand und die Figur 7 den entspannten Zustand.In Figures 6 and 7 is also a spring accumulator three parallel springs shown, but in the all springs are mechanically connected in parallel. It shows 6 shows the tensioned state and FIG. 7 shows the relaxed state.

Der in der Figur 1 schematisch gezeigte Niederspannungs-Leistungsschalter 1 besitzt wenigstens einen Kontaktapparat 2, der feststehende Schaltkontakte 3 und bewegbare Kontakthebel 4 aufweist. Die Kontakthebel 4 sind an einem schwenkbar gelagerten Kontakthebelträger 5 angebracht, der mittels einer Koppelstange 6 durch eine Schaltwelle 7 und darauf sitzende Treibhebel 8 betätigbar ist. Der Leistungsschalter 1 weist ein Tragwerk 9 auf, an dem ein Schaltmechanismus 10 und ein Federspeicher 11 angestützt sind. Die Schaltwelle 7 gehört zu dem Schaltmechanismus 10, der in der Figur 1 als Block angedeutet ist. Der Federspeicher 11 stellt die mechanische Energie bereit, die mittels des Schaltmechanismus 10 umgeformt und zur Einwirkung auf den Kontaktapparat 2 gebracht wird. Einzelheiten der Kraftübertragung von dem Federspeicher 11 zu dem Kontaktapparat 2 sind beispielsweise der eingangs genannten DE 35 42 746 A1 zu entnehmen.The low-voltage circuit breaker shown schematically in FIG. 1 1 has at least one contact apparatus 2, the fixed switch contacts 3 and movable contact lever 4 has. The contact lever 4 can be pivoted on one mounted contact lever carrier 5 attached by means of a Coupling rod 6 through a selector shaft 7 and sitting thereon Drive lever 8 is actuated. The circuit breaker 1 has a structure 9 on which a switching mechanism 10 and a Spring 11 are supported. The control shaft 7 belongs to the switching mechanism 10, which in Figure 1 as a block is indicated. The spring accumulator 11 provides the mechanical Energy ready by means of the switching mechanism 10 reshaped and to act on the contact apparatus 2 brought. Details of the power transmission from the Spring accumulators 11 for the contact apparatus 2 are, for example the above-mentioned DE 35 42 746 A1.

In der Figur 2 ist gezeigt, daß der Leistungsschalter 1 dreipolig ausgebildet ist und dementsprechend drei Kontaktapparate 2 aufwist.FIG. 2 shows that the circuit breaker 1 is formed three-pole and accordingly three Contact apparatus 2 is open.

Der Schaltmechanismus 10 ist zwischen Tragplatten 12 und 13 angeordnet, die zu dem Tragwerk 9 des Leistungsschalters 1 gehören oder mit diesem verbunden sind. Der Federspeicher 11 umfaßt zwei parallel angeordnete Federn 14 und 15, von denen die erste Feder 14 zwischen den Tragplatten 12 und 13 und die weitere Feder 15 an der Außenseite der Tragplatte 12 angebracht ist. Beide Federn 14 und 15 sind Schraubendruckfedern. Eine Speicherkupplung 33 verbindet den Schaltmechanismus 10 und den Federspeicher 11. Weitere Einzelheiten unterschiedlicher Ausführungen des Federspeichers 11 werden nun anhand der Figuren 3 bis 7 erläutert.The switching mechanism 10 is between support plates 12 and 13 arranged to the structure 9 of the circuit breaker 1 belong to or are connected to it. The spring accumulator 11 comprises two springs 14 and 15 arranged in parallel, one of which the first spring 14 between the support plates 12 and 13 and the further spring 15 on the outside of the support plate 12 is appropriate. Both springs 14 and 15 are helical compression springs. A storage clutch 33 connects the switching mechanism 10 and the spring mechanism 11. Further details different designs of the spring accumulator 11 will now be explained with reference to Figures 3 to 7.

Gemäß der Figur 3 ist an einer Stirnfläche der Tragplatte 12 ein Schwenklager 16 angebracht, an dem ein Umlenkorgan 17 schwenkbar gelagert ist. Das Umlenkorgan 17 hat die Gestalt eines zweiarmigen Hebels mit gleichlangen Schenkeln und dient zur Verbindung der Federn 14 und 15. Die Feder 15 befindet sich in einem mit der Tragplatte 12 verbundenen Federträger 20 und stützt sich an dessen Bodenfläche ab. Das gegenüberliegende Ende der Feder 15 befindet sich nahe dem Schwenklager 16. Eine kürzere Koppelstange 21 verbindet das Umlenkorgan 17 mit dem freien Ende der Feder 15, während eine längere Koppelstange 22 den anderen Hebelarm des zweiarmigen Hebels 17 mit einem Federteller 23 verbindet, an dem sich das freie Ende 19 der Feder 14 abstützt. Das ortsfeste Widerlager für das gegenüberliegende Ende 18 der Feder 14 befindet sich nahe dem Schwenklager 16. Wie man erkennt, sind beide Federn 14 und 15 mechanisch parallelgeschaltet, weil die Bewegung der Feder 15 zu dem Federteller 23 geleitet wird, auf den auch die Feder 14 einwirkt. In der Figur 3 ist angenommen, daß die Federn 14 und 15 im gespannten Zustand verklinkt sind. Nach ihrer Freigabe können die Federn 14 und 15 eine Stellung etwa gemäß der Figur 4 einnehmen, in welcher das Umlenkorgan 17 im Uhrzeigersinn geschwenkt und beide Federn 14 und 15 ganz oder teilweise entspannt sind. Dies entspricht der in der Figur 1 gestrichelt angedeuteten eingeschalteten Stellung des Kontaktapparates 2. Unterhalb des Federtellers 23 ist durch einen Pfeil die in der Figur 1 gezeigte Speicherkupplung 33 angedeutet.According to FIG. 3, there is 12 on an end face of the support plate a pivot bearing 16 is attached, on which a deflecting member 17th is pivotally mounted. The deflection member 17 has the shape a two-armed lever with legs of equal length and serves to connect the springs 14 and 15. The spring 15 is located in a spring support connected to the support plate 12 20 and is supported on the bottom surface. The opposite The end of the spring 15 is near the pivot bearing 16. A shorter coupling rod 21 connects that Deflector 17 with the free end of the spring 15, while a longer coupling rod 22 the other lever arm of the two-armed Lever 17 connects to a spring plate 23 on which the Free end 19 of the spring 14 supports. The fixed abutment for the opposite end 18 of the spring 14 is located near the pivot bearing 16. As you can see, both springs 14 and 15 mechanically connected in parallel because of the movement the spring 15 is passed to the spring plate 23 on the the spring 14 also acts. In FIG. 3 it is assumed that the springs 14 and 15 latched in the tensioned state are. After their release, the springs 14 and 15 can Take position as shown in Figure 4, in which the Deflector 17 pivoted clockwise and both springs 14 and 15 are fully or partially relaxed. This matches with the switched on indicated in dashed lines in Figure 1 Position of the contact apparatus 2. Below the spring plate 23 is by an arrow that shown in Figure 1 Storage clutch 33 indicated.

Wird in dem Ausführungsbeispiel gemäß den Figuren 3 und 4 anstelle der Koppelstange 22 eine der Koppelstange 21 entsprechende kurze Koppelstange verwendet und wird diese mit dem oberen Ende 18 der Feder 14 verbunden, so entsteht eine mechanische Reihenschaltung der Federn 14 und 15.Is in the embodiment according to Figures 3 and 4 instead of the coupling rod 22, one of the coupling rods 21 appropriate short coupling rod is used and this with connected to the upper end 18 of the spring 14, so a mechanical series connection of springs 14 and 15.

Das weitere Ausführungsbeispiel gemäß der Figur 5 stellt einen Federspeicher mit drei Federn dar, von denen die Federn 14 und 15 mit dem Umlenkorgan 17 der Anordnung gemäß den Figuren 3 und 4 vollständig entsprechen. Jedoch ist zur Verbindung des Umlenkorgans 17 mit der Feder 14 eine kurze Koppelstange 24 vorgesehen, die an einem oberen Federteller 25 angreift. Eine zusätzliche Feder 26 ist symmetrisch angeordnet und wirkt über ein zugehöriges Schwenklager 27 an der Tragplatte 13 und ein zusätzliches Umlenkorgan 30 gleichfalls auf den Federteller 25 der mittleren Feder 14 ein. Auf diese Weise sind die beiden äußeren Federn 15 und 26 mechanisch parallel geschaltet, während diese Parallelschaltung in Reihe mit der mittleren Feder 14 liegt. Zur Aufnahme der zusätzlichen Feder 26 dient ein Federträger 28, der spiegelbildlich zu dem Federträger 20 angeordnet und an der Tragwand 13 abgestützt ist. The further exemplary embodiment according to FIG. 5 represents a spring accumulator with three springs, of which the springs 14 and 15 with the deflector 17 of the arrangement according to the Figures 3 and 4 fully correspond. However, is for Connection of the deflector 17 with the spring 14 a short Coupling rod 24 provided on an upper spring plate 25 attacks. An additional spring 26 is symmetrical arranged and acts on an associated pivot bearing 27 the support plate 13 and an additional deflection member 30 likewise on the spring plate 25 of the middle spring 14 on. In this way, the two outer springs 15 and 26 mechanically connected in parallel while this parallel connection is in series with the middle spring 14. For A spring support 28 serves to accommodate the additional spring 26, arranged in mirror image to the spring support 20 and on the support wall 13 is supported.

In den Figuren 6 und 7 ist ein weiteres Ausführungsbeispiel dargestellt, bei dem gleichfalls drei Federn 14, 15 und 26 in paralleler Anordnung vorgesehen sind. Gleichfalls sind in einer mit der Figur 5 übereinstimmenden Anordnung Schwenklager 16 und 27 für Umlenkorgane 17 und 30 vorhanden. Unterschiedlich sind jedoch die Koppelstangen 31 und 32, welche die Umlenkorgane 17 und 30 mit dem Federteller 23 verbinden, der den Widerlagern 16 und 27 abgewandt ist. Auf diese Weise sind alle drei Federn 14, 15 und 26 mechanisch parallel geschaltet. In der Figur 6 fluchten die Koppelstangen 31 und 32 miteinander und sind daher nicht unterscheidbar. Die Figur 7 läßt bei entspannten Federn 14, 15 und 26 beide Koppelstangen 31 und 32 erkennen.Another exemplary embodiment is shown in FIGS. 6 and 7 shown, in which also three springs 14, 15 and 26 in parallel arrangement are provided. Likewise, in an arrangement corresponding to Figure 5 pivot bearing arrangement 16 and 27 for deflectors 17 and 30 available. However, the coupling rods 31 and 32 are different, which the deflection elements 17 and 30 with the spring plate 23rd connect which faces away from the abutments 16 and 27. On in this way all three springs 14, 15 and 26 are mechanical connected in parallel. In Figure 6, the coupling rods are aligned 31 and 32 with each other and are therefore indistinguishable. Figure 7 can with relaxed springs 14, 15 and 26 recognize both coupling rods 31 and 32.

Durch geeignete Auswahl der Federn besteht die Möglichkeit, die Kraft-Weg-Kennlinie der beschriebenen Federspeicher 11 bei unveränderten äußeren Abmessungen an den Schaltmechanismus 10 und den Kontaktapparat 2 des Leistungsschalters 1 anzupassen.By selecting the springs appropriately, it is possible the force-displacement characteristic of the spring accumulator 11 described with unchanged external dimensions on the switching mechanism 10 and the contact apparatus 2 of the circuit breaker 1 adapt.

Claims (5)

  1. Circuit breaker (1) having a contact apparatus (2), a switching mechanism (10) for operating the contact apparatus (2), and having a spring energy store (11) for storing drive energy for the switching mechanism (10), the spring energy store (11) being supported on a subframe (9) of the circuit breaker (1) and comprising a first spring (14),
    characterized in that the spring energy store (11) has at least one fixed-position pivoting bearing (16) for a deflection device (17) which transmits the movement of a further spring (15) in the direction of action of the first spring (14), and in that the deflection device (17) can optionally be connected to the first spring (14) at its end (18) facing the pivoting bearing (16) or at its end (19) facing away from the pivoting bearing (16).
  2. Circuit breaker according to Claim 1,
    characterized in that the pivoting bearing (16) is fitted on a supporting wall (12, 13) which is arranged at the side of the first spring (14).
  3. Circuit breaker according to Claim 1,
    characterized in that the deflection device (17) is designed as a two-armed lever, and in that the further spring (15) is arranged in parallel with the first spring (14).
  4. Circuit breaker according to one of the preceding claims,
    characterized in that at least one additional spring (26) and a corresponding number of pivoting bearings (27) for deflection devices (30) are provided.
  5. Circuit breaker according to Claim 1,
    characterized in that the further spring (15) and each additional spring (26) are supported in a spring mounting (20, 28) which can be connected to one of the supporting walls (12, 13).
EP97915316A 1996-02-29 1997-02-21 Power switch with a spring energy store Expired - Lifetime EP0883885B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19609407 1996-02-29
DE19609407A DE19609407A1 (en) 1996-02-29 1996-02-29 Circuit breaker with a spring mechanism
PCT/DE1997/000360 WO1997032323A1 (en) 1996-02-29 1997-02-21 Power switch with a spring energy store

Publications (2)

Publication Number Publication Date
EP0883885A1 EP0883885A1 (en) 1998-12-16
EP0883885B1 true EP0883885B1 (en) 1999-09-01

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EP97915316A Expired - Lifetime EP0883885B1 (en) 1996-02-29 1997-02-21 Power switch with a spring energy store

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EP (1) EP0883885B1 (en)
JP (1) JP2000505586A (en)
DE (2) DE19609407A1 (en)
WO (1) WO1997032323A1 (en)

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DE10233841B3 (en) * 2002-07-19 2004-01-29 Siemens Ag Circuit breaker with drive mechanism and energy storage to provide the drive energy

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2000505586A (en) 2000-05-09
DE59700393D1 (en) 1999-10-07
EP0883885A1 (en) 1998-12-16
WO1997032323A1 (en) 1997-09-04
DE19609407A1 (en) 1997-09-04

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