EP1298693B1 - Switching device - Google Patents

Switching device Download PDF

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Publication number
EP1298693B1
EP1298693B1 EP20020019398 EP02019398A EP1298693B1 EP 1298693 B1 EP1298693 B1 EP 1298693B1 EP 20020019398 EP20020019398 EP 20020019398 EP 02019398 A EP02019398 A EP 02019398A EP 1298693 B1 EP1298693 B1 EP 1298693B1
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EP
European Patent Office
Prior art keywords
drive lever
lever
switching mechanism
toggle
contact system
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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 - Fee Related
Application number
EP20020019398
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German (de)
French (fr)
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EP1298693A1 (en
Inventor
Bogdan Zabrocki
Guido Eifert
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Eaton Industries GmbH
Original Assignee
Moeller GmbH
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Publication of EP1298693A1 publication Critical patent/EP1298693A1/en
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Publication of EP1298693B1 publication Critical patent/EP1298693B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • 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
    • H01H71/02Housings; Casings; Bases; Mountings
    • H01H71/0207Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • 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
    • H01H71/46Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Definitions

  • the invention relates to a switching device with a housing, which has a multi-pole Contact system and a switch lock includes, the switch lock has a drive lever connected to an operating lever, the acts on the contact system via a toggle lever system such that the drive lever to close the contact system in an on position and to Opening the contact system in an off position about an axis of rotation is arranged pivotably and one between the on position and the Has the off position, in which it is triggered by a appropriate trigger mechanism of the key switch when there is a Malfunction of the electrical system to which the switching device is connected is pressed to open the contact system, the toggle system at least two articulated with each other via a toggle lever axis connected toggle lever and a lock spring, which between the Toggle lever axis and the drive lever attacks.
  • Such a switching device is known for example from DE 33 36 207 C3.
  • EP 0 656 641 A2 is a switching device with undervoltage release known, which includes a leading auxiliary switch (VHI) (in in EP 0 656 641 A2 this auxiliary switch is referred to as button 10).
  • VHI leading auxiliary switch
  • Such Auxiliary switches are used to issue commands or signals, before closing or opening the main contact blocks of the switchgear be initiated and also allow a switch position indicator. Details This document contains information on the use of this auxiliary switch Not.
  • the drive lever in the presence of malfunctions in a tripped position between the off position and the on position depending on the arrangement, the respective drive lever takes the toggle lever system with respect to the axis of rotation of the drive lever, in the released position, there is often no precisely defined position. Much more the positions of the drive lever can vary from one switching operation to another and from switchgear copy to switchgear copy by a few Degrees differ from each other.
  • the invention has for its object a switching device of the aforementioned Specify which one is an interchangeable undervoltage release with integrated auxiliary switch, with the auxiliary switch safely in a predetermined position of the drive lever within the tripped position is operated.
  • the invention is essentially based on the idea in the tripped position to let a sufficiently large force act on the drive lever, which pivots this securely into its predetermined position, around the To operate auxiliary switch.
  • This can e.g. done in that the axis of rotation of the drive lever and the toggle lever axis are arranged in such a way that when reaching the tripped position taking into account the spring force the lock spring a torque acting on the drive lever results, which is sufficient to the drive lever against the pressure of the actuator the auxiliary switch to its defined position.
  • such an embodiment of the invention has the disadvantage that the switching device and the associated undervoltage release each must be adapted to each other through constructive measures so that taking into account all other interface parameters large torque can be applied by the drive lever. If you change the size of such a switching device (the same Switchgear series), the dimensions of the associated usually change Undervoltage release.
  • the Swiveling the drive lever by at least one additional elastic Element takes place, which the drive lever against the pressure of the mechanical Actuator of the auxiliary switch in the defined position pushes or pulls.
  • Tension, compression or torsion springs can be used as elastic elements be used.
  • a switchgear series with switchgear different Size can also be provided such that a first switching device is designed so that the pivoting movement of the drive lever by the different position of the toggle lever axis and the axis of rotation of the drive lever is generated and that the other larger and / or smaller Switchgear is equipped with an additional spring to the drive lever to pivot into its defined position.
  • 1 denotes a switching device with a housing 2, which in a lower housing part 3, not shown, with busbars 4, 5 connected multi-pole contact system and in its upper Housing part 6 a key switch 7 with a not shown (in front of the image plane ) undervoltage release.
  • the key switch 7 has one connected to an actuating lever 8
  • Drive lever 9 on the toggle lever system 10 on the contact system acts in such a way that the drive lever 9 for closing the contact system in an on position labeled I and for opening the contact system in an off position labeled "0" can be pivoted about an axis of rotation 11 is arranged.
  • 1 and 2 there is the drive lever 9 and thus also the operating lever 8 in a between the on position and the off position tripped position, in which he is in the presence of a Malfunction of the electrical system to which the switching device 1 is connected by one (from the undervoltage release or by another Triggering mechanism activated), not shown, trigger mechanism of the key switch 7 is pressed to open the contact system.
  • the toggle lever system 10 has two articulated via a toggle lever axis 12 interconnected toggle levers, of which for reasons of clarity only the lower toggle lever 13 acting on the contact system is shown is.
  • the toggle lever system 10 comprises a lock spring 14, which between the toggle lever axis 12 and the drive lever 9 attacks. Since at Switching the switching device 1 on and off the tilting points of the lock spring 14 should be at different positions of the swivel path, also changed the toggle lever axis 12 in the corresponding switching operations, in Position seen in the swivel direction.
  • the drive lever 9 is bent (rearward) in a U-shape and points to it the side facing the undervoltage release, several switching cams 15-17 to control it.
  • the designated 15 and 16 serve Switch cams for actuating a control lever 18 and a trigger lever 19 (see Fig. 3 and the aforementioned DE 198 53 901 C1).
  • the one labeled 17 Switch cams actuate the push button 20 of the auxiliary switch 21 designed as a pressure switch as soon as the drive lever 9 is in its tripped position.
  • an auxiliary spring 24 (in the illustrated embodiment a tension spring) is provided on the one hand on the drive lever 9 and on the other hand on a part fixed to the housing (e.g. the frame, inside whose drive lever is pivotable) supports.
  • a leading auxiliary switch 21 provided with a push button 20 provided that e.g. with a first pair of contacts an electromagnet of the undervoltage release switches and with a second pair of contacts causes a switch position indicator.
  • This undervoltage release 26 should preferably be of different sizes Switching devices 1 are used without himself regarding its size needs to be changed.
  • FIG. 4 A corresponding switching device 1 (without the lower housing part) is shown in FIG. 4.
  • the same parts as those shown in Fig.1-3 Embodiments were used with the same reference numerals Mistake.
  • the housing 2 of the switching device 1 has in particular a chamber 28 for the undervoltage release acting on the switch lock 7 26th

Description

Die Erfindung betrifft ein Schaltgerät mit einem Gehäuse, welches ein mehrpoliges Kontaktsystem und ein Schaltschloss umfasst, wobei das Schaltschloss einen mit einem Betätigungshebel verbundenen Antriebshebel aufweist, der über ein Kniehebelsystem auf das Kontaktsystem wirkt, derart, dass der Antriebshebel zum Schließen des Kontaktsystems in eine Ein-Stellung und zum Öffnen des Kontaktsystems in eine Aus-Stellung um eine Drehachse verschwenkbar angeordnet ist und eine zwischen der Ein-Stellung und der Aus-Stellung befindliche Ausgelöst-Stellung besitzt, in welche er durch eine entsprechende Auslösemechanik des Schaltschlosses beim Vorliegen einer Betriebsstörung der elektrischen Anlage, an welcher das Schaltgerät angeschlossen ist, zum Öffnen des Kontaktsystems gedrückt wird, wobei das Kniehebelsystem mindestens zwei über eine Kniehebelachse gelenkig miteinander verbundene Kniehebel und eine Schlossfeder umfasst, welche zwischen der Kniehebelachse und dem Antriebshebel angreift.The invention relates to a switching device with a housing, which has a multi-pole Contact system and a switch lock includes, the switch lock has a drive lever connected to an operating lever, the acts on the contact system via a toggle lever system such that the drive lever to close the contact system in an on position and to Opening the contact system in an off position about an axis of rotation is arranged pivotably and one between the on position and the Has the off position, in which it is triggered by a appropriate trigger mechanism of the key switch when there is a Malfunction of the electrical system to which the switching device is connected is pressed to open the contact system, the toggle system at least two articulated with each other via a toggle lever axis connected toggle lever and a lock spring, which between the Toggle lever axis and the drive lever attacks.

Ein derartiges Schaltgerät ist beispielsweise aus der DE 33 36 207 C3 bekannt.Such a switching device is known for example from DE 33 36 207 C3.

Aus der DE 198 53 901 C1 ist ferner ein Schaltgerät mit einem Unterspannungsauslöser bekannt, der bei Spannungsunterbrechung oder Unterschreitung einer Sollspannung die Auslösemechanik des Schaltschlosses betätigt, so dass der Antriebshebel in seine Ausgelöst-Stellung springt.From DE 198 53 901 C1 there is also a switching device with an undervoltage release known, when the voltage is interrupted or undershot a trigger voltage actuates the trigger mechanism of the key switch, so that the drive lever jumps to its tripped position.

Schließlich ist aus der EP 0 656 641 A2 ein Schaltgerät mit Unterspannungsauslöser bekannt, welcher einen voreilenden Hilfsschalter (VHI) umfasst (in der EP 0 656 641 A2 ist dieser Hilfsschalter als Taster 10 bezeichnet). Derartige Hilfsschalter dienen zur Kommando- oder Signalabgabe von Vorgängen, die vor dem Schließen oder Öffnen der Hauptschaltstücke des Schaltgerätes eingeleitet werden und gestatten außerdem eine Schaltstellungsanzeige. Nähere Angaben über die Verwendung dieses Hilfsschalters enthält diese Druckschrift nicht.Finally, EP 0 656 641 A2 is a switching device with undervoltage release known, which includes a leading auxiliary switch (VHI) (in in EP 0 656 641 A2 this auxiliary switch is referred to as button 10). such Auxiliary switches are used to issue commands or signals, before closing or opening the main contact blocks of the switchgear be initiated and also allow a switch position indicator. details This document contains information on the use of this auxiliary switch Not.

Bei Schaltgeräten, deren Antriebshebel bei Vorliegen von Betriebsstörungen in eine zwischen der Aus-Stellung und der Ein-Stellung befindliche Ausgelöst-Stellung geschwenkt werden, nimmt der jeweilige Antriebshebel, je nach Anordnung des Kniehebelsystems in bezug auf die Drehachse des Antriebshebels, in der Ausgelöst-Stellung häufig keine genau definierte Lage ein. Vielmehr können die Stellungen des Antriebshebels von Schaltvorgang zu Schaltvorgang sowie von Schaltgeräteexemplar zu Schaltgeräteexemplar um einige Grad voneinander abweichen. Soll daher der Antriebshebel bei Erreichen der Ausgelöst-Stellung einen Hilfsschalter in einer genau definierten Stellung mittels eines Nockens mechanisch betätigen, so kann sich bei derartigen Schaltgeräten das Problem ergeben, dass trotz des Erreichens der Ausgelöst-Stellung der Hilfsschalter keine Schaltsignale erzeugt, weil der Antriebshebel nicht in die entsprechend definierte Stellung gelangt, bei welcher der Hilfsschalter betätigbar ist. Selbst dann, wenn der Antriebshebel bei nicht vorhandenem Hilfsschalter bei Erreichen der Ausgelöst-Stellung jeweils in die gleiche definierte Lage gedrückt wird, kann bei Verwendung eines Hilfsschalters das Problem auftreten, dass die Kraft, mit welcher der Antriebshebel in die definierte Stellung verschwenkt wird, nicht ausreicht, um den Hilfsschalter mechanisch zu betätigen.In switchgear, the drive lever in the presence of malfunctions in a tripped position between the off position and the on position depending on the arrangement, the respective drive lever takes the toggle lever system with respect to the axis of rotation of the drive lever, in the released position, there is often no precisely defined position. Much more the positions of the drive lever can vary from one switching operation to another and from switchgear copy to switchgear copy by a few Degrees differ from each other. Therefore, if the drive lever is reached when Tripped position by means of an auxiliary switch in a precisely defined position mechanically actuating a cam, such switching devices can the problem arise that despite reaching the tripped position the auxiliary switch does not generate switching signals because the drive lever does not reaches the correspondingly defined position in which the auxiliary switch can be actuated. Even if the drive lever is missing Auxiliary switches in the same defined when reaching the tripped position Position is pressed, the can when using an auxiliary switch Problem occur that the force with which the drive lever is defined in the Position is pivoted, is not sufficient to mechanically switch the auxiliary switch to operate.

Das gleiche Problem tritt auf, wenn der Unterspannungsauslöser bei unterschiedlichen Baugrößen von Schaltgeräten Verwendung finden soll.The same problem occurs when the undervoltage release is at different Sizes of switchgear should be used.

Der Erfindung liegt die Aufgabe zugrunde, ein Schaltgerät der eingangs erwähnten Art anzugeben, welches einen austauschbaren Unterspannungsauslöser mit integriertem Hilfsschalter umfasst, wobei der Hilfsschalter sicher in einer vorgegebenen Stellung des Antriebshebels innerhalb der Ausgelöst-Stellung betätigt wird.The invention has for its object a switching device of the aforementioned Specify which one is an interchangeable undervoltage release with integrated auxiliary switch, with the auxiliary switch safely in a predetermined position of the drive lever within the tripped position is operated.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 oder 2 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbart der Unteranspruch.This object is achieved by the features of claims 1 or 2 solved. Further, particularly advantageous embodiments of the invention discloses the subclaim.

Die Erfindung beruht im wesentlichen auf dem Gedanken, in der Ausgelöst-Stellung auf den Antriebshebel eine ausreichend große Kraft wirken zu lassen, welche diesen sicher in seine vorgegebene Stellung verschwenkt, um den Hilfsschalter zu betätigen. Dieses kann z.B. dadurch erfolgen, dass die Drehachse des Antriebshebels und die Kniehebelachse derart angeordnet sind, dass bei Erreichen der Ausgelöst-Stellung unter Berücksichtigung der Federkraft der Schlossfeder sich ein auf den Antriebshebel wirkendes Drehmoment ergibt, welches ausreicht, um den Antriebshebel gegen den Druck des Betätigungselementes des Hilfsschalters in seine definierte Stellung zu drücken.The invention is essentially based on the idea in the tripped position to let a sufficiently large force act on the drive lever, which pivots this securely into its predetermined position, around the To operate auxiliary switch. This can e.g. done in that the axis of rotation of the drive lever and the toggle lever axis are arranged in such a way that when reaching the tripped position taking into account the spring force the lock spring a torque acting on the drive lever results, which is sufficient to the drive lever against the pressure of the actuator the auxiliary switch to its defined position.

Eine derartige Ausführungsform der Erfindung weist allerdings den Nachteil auf, dass das Schaltgerät und der zugehörige Unterspannungsauslöser jeweils durch konstruktive Maßnahmen aneinander angepasst werden müssen, damit unter Berücksichtigung aller weiteren Schnittstellenparameter ein entsprechend großes Drehmoment von dem Antriebshebel aufgebracht werden kann. Ändert man daher die Größe eines derartigen Schaltgerätes (der gleichen Schaltgeräteserie), ändern sich in der Regel auch die Abmessungen des zugehörigen Spannungsauslösers.However, such an embodiment of the invention has the disadvantage that the switching device and the associated undervoltage release each must be adapted to each other through constructive measures so that taking into account all other interface parameters large torque can be applied by the drive lever. If you change the size of such a switching device (the same Switchgear series), the dimensions of the associated usually change Undervoltage release.

Bei einer weiteren Ausführungsform der Erfindung ist vorgesehen, dass das Verschwenken des Antriebshebels durch mindestens ein zusätzliches elastisches Element erfolgt, welches den Antriebshebel gegen den Druck des mechanischen Betätigungselementes des Hilfsschalters in die definierte Stellung drückt bzw. zieht.In a further embodiment of the invention it is provided that the Swiveling the drive lever by at least one additional elastic Element takes place, which the drive lever against the pressure of the mechanical Actuator of the auxiliary switch in the defined position pushes or pulls.

Diese Lösung weist den Vorteil auf, dass der gleiche Unterspannungsauslöser für unterschiedlich große Schaltgeräte der gleichen Serie verwendbar ist. Denn durch die entsprechende Wahl des elastischen Elementes und unabhängig von dem relativen Abstand zwischen der Dreh- und der Kniehebelachse lässt sich stets erreichen, den Antriebshebel gegen den Druck des Betätigungselementes des Hilfsschalters in seine definierte Stellung zu drücken. This solution has the advantage that the same undervoltage release can be used for switching devices of the same series of different sizes. Because through the appropriate choice of the elastic element and independently the relative distance between the rotary and toggle axes always reach the drive lever against the pressure of the actuator the auxiliary switch to its defined position.

Als elastische Elemente können beispielsweise Zug-, Druck- oder Drehfedern verwendet werden.Tension, compression or torsion springs can be used as elastic elements be used.

Selbstverständlich kann bei einer Schaltgeräteserie mit Schaltgeräten unterschiedlicher Größe auch vorgesehen sein, dass ein erstes Schaltgerät derart ausgelegt wird, dass die Schwenkbewegung des Antriebshebels durch die unterschiedliche Lage der Kniehebelachse und der Drehachse des Antriebshebels erzeugt wird und dass die weiteren größeren und/oder kleineren Schaltgeräte mit einer zusätzlichen Feder ausgerüstet sind, um den Antriebshebel in seine definierte Stellung zu verschwenken.Of course, with a switchgear series with switchgear different Size can also be provided such that a first switching device is designed so that the pivoting movement of the drive lever by the different position of the toggle lever axis and the axis of rotation of the drive lever is generated and that the other larger and / or smaller Switchgear is equipped with an additional spring to the drive lever to pivot into its defined position.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:

Figur 1:
den schematischen Längsschnitt durch ein erstes Ausführungsbeispiel eines erfindungsgemäßen Schaltgerätes mit in seiner Ausgelöst-Stellung befindlichen Antriebshebel, wobei die Drehachse und die Kniehebelachse derart angeordnet sind, dass sich ein Drehmoment ergibt, welches ausreicht, um den Antriebshebel in seine definierte Stellung zu drücken;
Figur 2:
einen Fig.1 entsprechenden schematischen Längsschnitt durch ein zweites Ausführungsbeispiel eines erfindungsgemäßen Schaltgerätes, wobei eine Hilfsfeder zur Lagefestlegung des Antriebshebels in der Ausgelöst-Stellung verwendet wird;
Figur 3:
die perspektivische Ansicht eines gekapselten Unterspannungsauslösers mit voreilendem Hilfsschalter und
Figur 4:
den oberen Teil eines erfindungsgemäßen Schaltgerätes mit eingebautem Unterspannungsauslöser, wie er in Fig.3 dargestellt ist.
Further details and advantages of the invention result from the following exemplary embodiments explained with reference to figures. Show it:
Figure 1:
the schematic longitudinal section through a first embodiment of a switching device according to the invention with the drive lever in its tripped position, the axis of rotation and the toggle lever axis being arranged in such a way that a torque results which is sufficient to press the drive lever into its defined position;
Figure 2:
a schematic longitudinal section corresponding to FIG. 1 through a second exemplary embodiment of a switching device according to the invention, an auxiliary spring being used to fix the position of the drive lever in the released position;
Figure 3:
the perspective view of an encapsulated undervoltage release with leading auxiliary switch and
Figure 4:
the upper part of a switching device according to the invention with built-in undervoltage release, as shown in Figure 3.

In den Fig.1 und 2 ist mit 1 ein Schaltgerät mit einem Gehäuse 2 bezeichnet, welches in einem unteren Gehäuseteil 3 ein nicht dargestelltes, mit Stromschienen 4, 5 verbundenes mehrpoliges Kontaktsystem und in seinem oberen Gehäuseteil 6 ein Schaltschloss 7 mit einem nicht dargestellten (vor der Bildebene befindlichen) Unterspannungsauslöser umfasst.1 and 2, 1 denotes a switching device with a housing 2, which in a lower housing part 3, not shown, with busbars 4, 5 connected multi-pole contact system and in its upper Housing part 6 a key switch 7 with a not shown (in front of the image plane ) undervoltage release.

Das Schaltschloss 7 weist einen mit einem Betätigungshebel 8 verbundenen Antriebshebel 9 auf, der über ein Kniehebelsystem 10 auf das Kontaktsystem wirkt, derart, dass der Antriebshebel 9 zum Schließen des Kontaktsystems in eine mit I bezeichnete Ein-Stellung und zum Öffnen des Kontaktsystems in eine mit "0" bezeichnete Aus-Stellung um eine Drehachse 11 verschwenkbar angeordnet ist. In den Fig.1 und 2 befindet sich der Antriebshebel 9 und damit auch der Betätigungshebel 8 in einer zwischen der Ein-Stellung und der Aus-Stellung befindlichen Ausgelöst-Stellung, in welche er beim Vorliegen einer Betriebsstörung der elektrischen Anlage, an welcher das Schaltgerät 1 angeschlossen ist, durch eine (von dem Unterspannungsauslöser oder durch andere Auslösemittel aktivierte) nicht dargestellte Auslösemechanik des Schaltschlosses 7 zum Öffnen des Kontaktsystems gedrückt wird.The key switch 7 has one connected to an actuating lever 8 Drive lever 9 on the toggle lever system 10 on the contact system acts in such a way that the drive lever 9 for closing the contact system in an on position labeled I and for opening the contact system in an off position labeled "0" can be pivoted about an axis of rotation 11 is arranged. 1 and 2 there is the drive lever 9 and thus also the operating lever 8 in a between the on position and the off position tripped position, in which he is in the presence of a Malfunction of the electrical system to which the switching device 1 is connected by one (from the undervoltage release or by another Triggering mechanism activated), not shown, trigger mechanism of the key switch 7 is pressed to open the contact system.

Das Kniehebelsystem 10 besitzt zwei über eine Kniehebelachse 12 gelenkig miteinander verbundene Kniehebel, von denen aus Übersichtlichkeitsgründen lediglich der untere, auf das Kontaktsystem wirkende Kniehebel 13 dargestellt ist. Außerdem umfasst das Kniehebelsystem 10 eine Schlossfeder 14, welche zwischen der Kniehebelachse 12 und dem Antriebshebel 9 angreift. Da beim Ein- und Ausschalten des Schaltgerätes 1 die Kipppunkte der Schlossfeder 14 bei unterschiedlichen Lagen des Schwenkweges liegen sollen, verändert auch die Kniehebelachse 12 bei den entsprechenden Schaltvorgängen ihre, in Schwenkrichtung gesehene, Lage.The toggle lever system 10 has two articulated via a toggle lever axis 12 interconnected toggle levers, of which for reasons of clarity only the lower toggle lever 13 acting on the contact system is shown is. In addition, the toggle lever system 10 comprises a lock spring 14, which between the toggle lever axis 12 and the drive lever 9 attacks. Since at Switching the switching device 1 on and off the tilting points of the lock spring 14 should be at different positions of the swivel path, also changed the toggle lever axis 12 in the corresponding switching operations, in Position seen in the swivel direction.

Der Antriebshebel 9 ist (nach hinten) U-förmig gebogen und weist auf seiner dem Unterspannungsauslöser zugewandten Seite mehrere Schaltnocken 15-17 zu dessen Ansteuerung auf. Dabei dienen die mit 15 und 16 bezeichneten Schaltnocken zur Betätigung eines Steuerhebels 18 und eines Auslösehebels 19 (vgl. Fig.3 sowie die eingangs erwähnte DE 198 53 901 C1). Der mit 17 bezeichnete Schaltnocken hingegen bewirkt die Betätigung des Druckknopfes 20 des als Druckschalter ausgebildeten Hilfsschalters 21, sobald sich der Antriebshebel 9 in seiner Ausgelöst-Stellung befindet.The drive lever 9 is bent (rearward) in a U-shape and points to it the side facing the undervoltage release, several switching cams 15-17 to control it. The designated 15 and 16 serve Switch cams for actuating a control lever 18 and a trigger lever 19 (see Fig. 3 and the aforementioned DE 198 53 901 C1). The one labeled 17 Switch cams, on the other hand, actuate the push button 20 of the auxiliary switch 21 designed as a pressure switch as soon as the drive lever 9 is in its tripped position.

Um sicherzustellen, dass der Antriebshebel 9 tatsächlich nach Erreichen der in Fig.1 dargestellten Ausgelöst-Stellung gegen den Druck des Druckknopfes 20 diesen herunterdrückt, sind Drehachse 11 des Antriebshebels 9 und die Kniehebelachse 12 des Kniehebelsystems 10 derart angeordnet, dass sich unter Berücksichtigung der Federkraft der Schlossfeder 14 ein auf den Antriebshebel 9 wirkendes, ausreichend großes Moment M = a * K ergibt, wobei K die Federkraft und a der Abstand zwischen der mit 22 bezeichneten Federachse und der parallel zu der Federachse 22 senkrecht durch die Drehachse 11 verlaufenden Achse 23 bedeuten. Durch dieses Moment M wird der Antriebshebel 9 so lange in Richtung des Pfeils 100 verschwenkt, bis die vorgegebene Stellung erreicht ist.To ensure that the drive lever 9 is actually reached after reaching the in 1 shown tripped position against the push of the push button 20th presses this down, axis of rotation 11 of the drive lever 9 and the toggle lever axis 12 of the toggle lever system 10 arranged such that under Taking into account the spring force of the lock spring 14 on the drive lever 9 acting, sufficiently large moment M = a * K, where K is the spring force and a the distance between the spring axis designated 22 and the parallel to the spring axis 22 perpendicular to the axis of rotation 11 Axis 23 mean. By this moment M, the drive lever 9 becomes so long pivoted in the direction of arrow 100 until the predetermined position is reached.

Wie aus Fig.2 hervorgeht, ist bei dieser Ausführungsform der Erfindung in der Ausgelöst-Stellung der Abstand a ≅ 0, so dass der Antriebshebel 9 in der Ausgelöst-Stellung nicht automatisch eine definierte Stellung einnimmt, sondern in dieser Stellung etwas nach rechts oder links verschwenkbar ist, ohne dass eine Rückstellkraft auf den Antriebshebel 9 wirkt.As can be seen from Figure 2, is in this embodiment of the invention in the Tripped position the distance a ≅ 0, so that the drive lever 9 in the tripped position does not automatically assume a defined position, but in this position can be swiveled slightly to the right or left without a restoring force acts on the drive lever 9.

Um auch in diesem Fall sicherzustellen, dass der Antriebshebel 9 bei Erreichen der Ausgelöst-Stellung in eine definierte Stellung zum Betätigen des Hilfsschalters 21 gelangt, ist eine Hilfsfeder 24 (im dargestellten Ausführungsbeispiel eine Zugfeder) vorgesehen, die sich einerseits an dem Antriebshebel 9 und andererseits an einem gehäusefesten Teil (z.B. dem Rahmen, innerhalb dessen der Antriebshebel verschwenkbar ist) abstützt.In order to ensure in this case that the drive lever 9 is reached the triggered position in a defined position for actuating the Auxiliary switch 21 arrives, is an auxiliary spring 24 (in the illustrated embodiment a tension spring) is provided on the one hand on the drive lever 9 and on the other hand on a part fixed to the housing (e.g. the frame, inside whose drive lever is pivotable) supports.

In Fig.3 ist das Ausführungsbeispiel eines in einem Gehäuse 25 angeordneten Unterspannungsauslösers 26 dargestellt, wie er im wesentlichen in der DE 198 53 901 C1 offenbart ist. Dabei sind mit 18 der Steuerhebel, mit 19 der Auslösehebel und mit 27 ein Auslöseschieber bezeichnet, wobei der Auslöseschieber 27 in an sich bekannter Weise auf die nicht dargestellte Auslösemechanik des Schaltschlosses 7 wirkt, wenn sich der Antriebshebel 9 in der Ein-Stellung befindet und eine Betriebsstörung auftritt.In Figure 3, the embodiment is arranged in a housing 25 Undervoltage release 26 is shown, as it is essentially in DE 198 53 901 C1 is disclosed. At 18 are the control lever, at 19 the trigger lever and 27 designates a trigger slide, the trigger slide 27 in a manner known per se to the trigger mechanism, not shown the key switch 7 acts when the drive lever 9 is in the on position and there is a malfunction.

Zusätzlich zu dem in der DE 198 53 901 C1 offenbarten Unterspannungsauslöser ist ein mit einem Druckknopf 20 versehener voreilender Hilfsschalter 21 vorgesehen, der z.B. mit einem ersten Kontaktpaar einen Elektromagneten des Unterspannungsauslösers schaltet und mit einem zweiten Kontaktpaar eine Schaltstellungsanzeige bewirkt.In addition to the undervoltage release disclosed in DE 198 53 901 C1 is a leading auxiliary switch 21 provided with a push button 20 provided that e.g. with a first pair of contacts an electromagnet of the undervoltage release switches and with a second pair of contacts causes a switch position indicator.

Dieser Unterspannungsauslöser 26 soll vorzugsweise bei unterschiedlich großen Schaltgeräten 1 zum Einsatz kommen, ohne dass er selbst hinsichtlich seiner Größe verändert werden muss.This undervoltage release 26 should preferably be of different sizes Switching devices 1 are used without himself regarding its size needs to be changed.

Ein entsprechendes Schaltgerät 1 (ohne unteres Gehäuseteil) ist in Fig.4 wiedergegeben. Dabei sind die gleichen Teile, wie sie bei den in den Fig.1-3 dargestellten Ausführungsbeispielen verwendet wurden, mit gleichen Bezugszeichen versehen.A corresponding switching device 1 (without the lower housing part) is shown in FIG. 4. The same parts as those shown in Fig.1-3 Embodiments were used with the same reference numerals Mistake.

Wie Fig.4 zu entnehmen ist, besitzt das Gehäuse 2 des Schaltgerätes 1 insbesondere eine Kammer 28 für den auf das Schaltschloss 7 wirkenden Unterspannungsauslöser 26.As can be seen in FIG. 4, the housing 2 of the switching device 1 has in particular a chamber 28 for the undervoltage release acting on the switch lock 7 26th

Die Erfindung ist selbstverständlich nicht auf die dargestellten Ausführungsbeispiele beschränkt. So kann beispielsweise im Falle der in Fig.2 verwendeten Hilfsfeder 24 statt einer Zugfeder auch eine entsprechend angeordnete Druckfeder, eine Schwenkfeder oder ein anderes geeignetes elastisches Element verwendet werden.The invention is of course not based on the illustrated embodiments limited. For example, in the case of those used in Fig.2 Auxiliary spring 24 instead of a tension spring also a correspondingly arranged Compression spring, a swivel spring or another suitable elastic element be used.

Claims (3)

  1. Switching device having a housing (2), which comprises a multipole contact system and a switching mechanism (7), the switching mechanism (7) having a drive lever (9) which is connected to an actuating lever (8) and acts by means of a toggle lever system (10) on the contact system such that the drive lever (9) is arranged such that it can pivot about a rotary shaft (11) to an On position for the purpose of closing the contact system and to an Off position for the purpose of opening the contact system and has a Tripped position, which is located between the On position and the Off position and to which it is pushed, for the purpose of opening the contact system, by means of a corresponding tripping movement of the switching mechanism (7) when there is a malfunction in the electrical system to which the switching device (1) is connected, the toggle lever system (10) comprising at least two toggle levers (13), which are connected to one another in an articulated manner by means of a toggle lever shaft (12), and a locking spring (14), which engages between the toggle lever shaft (12) and the drive lever (9), having the following features:
    the housing (2) of the switching device (1) has a chamber (28) for accommodating an undervoltage release (26), which can be replaced and which acts on the switching mechanism (7), having an integrated auxiliary switch (21) which can be actuated by the drive lever (9) of the switching mechanism (7) in a defined position within the Tripped position,
    the rotary shaft (11) of the drive lever (9) and the toggle lever shaft (12) are arranged with respect to one another such that, taking into consideration the spring force of the locking spring (14), a torque is produced when the Tripped position is reached, and this torque acts on the drive lever (9) and is sufficient to push the drive lever (9), against the pressure of an actuating element (20) of the auxiliary switch (21), to its defined position.
  2. Switching device having a housing (2), which comprises a multipole contact system and a switching mechanism (7), the switching mechanism (7) having a drive lever (9) which is connected to an actuating lever (8) and acts by means of a toggle lever system (10) on the contact system such that the drive lever (9) is arranged such that it can pivot about a rotary shaft (11) to an On position for the purpose of closing the contact system and to an Off position for the purpose of opening the contact system and has a Tripped position, which is located between the On position and the Off position and to which it is pushed, for the purpose of opening the contact system, by means of a corresponding tripping movement of the switching mechanism (7) when there is a malfunction in the electrical system to which the switching device (1) is connected, the toggle lever system (10) comprising at least two toggle levers (13), which are connected to one another in an articulated manner by means of a toggle lever shaft (12), and a locking spring (14), which engages between the toggle lever shaft (12) and the drive lever (9), having the following features:
    the housing (2) of the switching device (1) has a chamber (28) for accommodating an undervoltage release (26), which can be replaced and which acts on the switching mechanism (7), having an integrated auxiliary switch (21) which can be actuated by the drive lever (9) of the switching mechanism (7) in a defined position within the Tripped position,
    provided in the switching mechanism (7) is at least one elastic element (24), which grips the drive lever (9) and pivots the drive lever (9) in the Tripped position to the defined position.
  3. Switching device according to Claim 2, characterized in that the elastic element (24) is a tension, compression or torsion spring, whose first end is arranged on the drive lever (9) and whose second end is arranged on the part of the switching mechanism (7) which is fixed to the housing.
EP20020019398 2001-09-13 2002-08-30 Switching device Expired - Fee Related EP1298693B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001145059 DE10145059C1 (en) 2001-09-13 2001-09-13 Multi-pole switching device provided with interchangable undervoltage release with integrated auxiliary switch operated in released position
DE10145059 2001-09-13

Publications (2)

Publication Number Publication Date
EP1298693A1 EP1298693A1 (en) 2003-04-02
EP1298693B1 true EP1298693B1 (en) 2004-10-13

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Application Number Title Priority Date Filing Date
EP20020019398 Expired - Fee Related EP1298693B1 (en) 2001-09-13 2002-08-30 Switching device

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EP (1) EP1298693B1 (en)
DE (1) DE10145059C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014107758A1 (en) 2013-01-09 2014-07-17 Polymeric Powders Company Pty Ltd Method and device for polymer pulverisation extrusion
US10242833B2 (en) 2017-02-23 2019-03-26 Siemens Aktiengesellschaft Systems, apparatus, and methods for accessory tripping and resetting of electric circuit breakers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8223118V0 (en) * 1982-10-07 1982-10-07 Sace Spa ELECTRIC SWITCH WITH STOPPING THE CONTROL LEVER STROKE IN CASE OF WELDING THE CONTACTS.
US4754247A (en) * 1987-06-12 1988-06-28 General Electric Company Molded case circuit breaker accessory enclosure
DE58904903D1 (en) * 1988-07-05 1993-08-19 Abb Patent Gmbh INSTALLATION SWITCH AND METHOD FOR OPERATING IT.
US5581219A (en) * 1991-10-24 1996-12-03 Fuji Electric Co., Ltd. Circuit breaker
DE4341214C2 (en) * 1993-12-03 1996-11-07 Kloeckner Moeller Gmbh Tripping unit for circuit breakers or circuit breakers
DE19853901C1 (en) * 1998-11-23 2000-06-15 Moeller Gmbh Undervoltage release

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DE10145059C1 (en) 2003-03-13

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