EP1709660A1 - Electromechanical switch - Google Patents

Electromechanical switch

Info

Publication number
EP1709660A1
EP1709660A1 EP04802014A EP04802014A EP1709660A1 EP 1709660 A1 EP1709660 A1 EP 1709660A1 EP 04802014 A EP04802014 A EP 04802014A EP 04802014 A EP04802014 A EP 04802014A EP 1709660 A1 EP1709660 A1 EP 1709660A1
Authority
EP
European Patent Office
Prior art keywords
contact
inhibiting
shaft
switch
movable contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04802014A
Other languages
German (de)
French (fr)
Other versions
EP1709660B1 (en
Inventor
Adolf Tetik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Moeller Gebaudeautomation GmbH
Original Assignee
Moeller Gebaudeautomation GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Moeller Gebaudeautomation GmbH filed Critical Moeller Gebaudeautomation GmbH
Publication of EP1709660A1 publication Critical patent/EP1709660A1/en
Application granted granted Critical
Publication of EP1709660B1 publication Critical patent/EP1709660B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

  • the invention relates to an electromechanical switch according to the preamble of claim 1.
  • Such an electromechanical switch is described in FR-AI -2 717 617.
  • This has a contact carrier which can be pivoted by means of an actuating knob, on which movable contacts are pivotably held. These movable contacts are pressed against stops by springs.
  • Above the upper ends of the movable contacts is a shaft which runs parallel to the pivoting axis of the contact carrier and carries an arm at the level of each contact, which arm is connected to the shaft in a rotationally fixed manner.
  • Each of these arms has an end face on which the movable contact comes to rest when the contact carrier is swiveled from the OFF to the EL position and the movable contact is inhibited by the arm in its further movement.
  • this solution has the disadvantage that the arms must be fixed on the shaft very precisely, which is associated with a corresponding manufacturing outlay.
  • the aim of the invention is to avoid this disadvantage and to propose a switch of the type mentioned at the outset which can be easily produced regardless of the number of its switching paths and which nevertheless ensures a rapid build-up of the contact pressure when the switch is operated manually. It is also the object of the invention to provide a switch in which the rapid build-up of the contact path functions perfectly even after a large number of circuits.
  • Claim 7 be executed.
  • the individual inhibiting parts are thus triggered independently of one another via the selector shaft.
  • a particularly high wear resistance of the inhibiting part of the switch according to the invention can be achieved by the features of claims 3 and 4, respectively.
  • Fig. 1 is an axonometric view of a switch according to the invention with off
  • FIG. 2 shows a section through a switch according to FIG. 1 with cover
  • FIG. 3 is a plan view of the movable contacts with selector shaft and locking parts
  • Fig. 6 is an exploded view of the arrangement of FIG. 3 with key switch and
  • FIG. 7 shows an exploded view of the arrangement according to FIG. 3, however, with one opposite
  • Fig. 6 offset viewing direction
  • Fig. 8 and Fig. 9 views of the inhibiting part.
  • the electromechanical switch according to the invention can be provided for various switching functions. For example, it can be a conventional ON / OFF switch that is used solely for the manual establishment or interruption of an electrical connection.
  • the main area of application for the switch according to the invention is the circuit breaker technology, i.e. it is usually designed as a motor circuit breaker, circuit breaker or - as shown in the drawings - as a residual current circuit breaker.
  • the number of four pole sections shown here is not essential to the invention; depending on the specific application, the switch can have more or fewer pole sections.
  • the switch according to the invention has a housing 1 in which a switch lock 2 with an actuating lever 3 is held.
  • the key switch 2 is coupled to a switching shaft 4, which is provided with receptacles 5 for movable contacts 6. Furthermore, mounting plates 22 are held in the housing 1, each of which accommodates axes 7 in Ausnelimungen 21, on which inhibiting parts 8 are held pivotably independently of one another. Separators 9 are formed on these mounting plates 22, which protrude between two contact pairs, which contact pairs each comprise a fixed contact 10, which is held in the housing 1, and a movable contact 6, which is held in a receptacle 5. The fixed and movable contacts 10, 6 are connected to terminals 11 via electrical connections, not shown.
  • Each inhibiting part 8 is designed as a lever-like component, at one end of which the pivot axis 7 and at the other end both an area which inhibits the movement of the movable contact 6 over a predetermined angle of rotation of the control shaft 4 and a nooke moved by the control shaft 4 13 controllable area is formed.
  • the inhibiting area is formed by a hook-like bend 14 of the end of the inhibiting part, which end of the hook lies in the longitudinal plane of the inhibiting part.
  • a control surface 12 forming the controllable region is formed on a widening 24 which is directly adjacent to the hook-like bends 14 and projects beyond the longitudinal plane of the inhibitor. Between its two ends, the plastic inhibitor part has a crank.
  • the hook-shaped bends 14 of the inhibiting parts 8 interact with extensions 15 (FIG. 6) of the movable contacts 6 (FIG. 4).
  • contacts 10, 6 When contacts 10, 6 are open, the extensions 15 of the movable contacts 6 engage in the hook-shaped bends 14 of the inhibiting parts 8 (FIG. 2).
  • the movable contacts 6 have, on both sides, aligned lugs 16 projecting from their contact carriers, which are held pivotably in grooves in the receptacles 5. These lugs 16 form the pivot axes of the movable contacts 6.
  • the movable contacts 6 are supported by a spring 18, which surrounds a guide pin 19 held in the contact carrier of the movable contact 6, on a wall part 26 of the receptacle 5 and against a stop 20 of the receptacle 5 biased, the springs 18 are each arranged between the grooves 17 and the stops 20.
  • the projection 15 of the movable contact 6 is integrally formed on its end abutting the stop 20.
  • the spring 18 is biased more and more because the one end or the extension 15 of the movable contact 6 from the hook-shaped bends 14 of the inhibiting part 8 is held while there is a lifting of the contact carrier of the movable contact 6 from the stop 20.
  • the cam 13 also rotates, approaches the control surface 12 more and more until the cam 13 touches the control surface 12 and then the inhibiting part 8 is pushed away by the cam 13. There is a pivoting of the inhibiting parts 8 against the force of a respective spring 23 biasing them against their inhibiting position (FIGS. 2, 6, 7).
  • an inhibiting part 8 is pivoted to such an extent that its hook-shaped bend 14 disengages from the extension 15 of the movable contact 6 and this is pressed by the spring 18 against the fixed contact 10 with high force, as a result of which a quick build-up of the contact pressure results.
  • the contacts 6, 10 are opened by corresponding actuation of the actuation lever 3 and the switch lock 2, which is coupled to the control shaft 4.
  • the selector shaft 4 and its receptacles 5 are turned back, as a result of which the position shown in FIG. 2 is then reached.
  • the individual switching paths are constructed in the same way and in such a way that an inhibiting part 8 is assigned to each movable contact 6, the inhibiting parts 8 being independent of the parallel to the Switch shaft 4 extending axis 8 are pivotable.
  • w switching paths of the same design can therefore be used, which are only to be arranged on a correspondingly long switching shaft 4.
  • no special, coordinated components or elaborate tuning or adjustment work is required.

Abstract

Electromechanical switch, as for example a circuit-breaker or a fault current protection switch, comprising a least one fixed contact (10) and at least one displaceable contact (6) co-operating therewith, said contact being maintained in a pivotable manner on a switch shaft (4) which can be displaced on at least one cam (13) and is prestressed by means of a spring (18) in a direction of a closing position of the respectively co-operating contacts (10, 6). The displaceable contact (6) is located in a position of the switch shaft (4) corresponding to the opened position of the co-operating contact (10, 6), said switch shaft being rotated about an actuating lever (3), whereon a stop (20) of the switch shaft (4) is located and the displaceable contact (6) also comprises an extension (15) which co-operates with a locking part (8) which can be maintained in a pivotable manner and which inhibits the movement of the displaceable contact (6) at a predetermined rotational angle of the switch shaft (4). The displaceable contact (6) is released when a predetermined rotational angle of the switch shaft (4) is exceeded. In order to produce said electromechanical switch in a simple manner, the locking part (8) is maintained in a pivotable manner on an axis (7) which extends in a parallel manner on the switch shaft (4) and is prestressed counter to the stop position thereof and the stop part (8), together with an area (14) inhibiting the movement of the displaceable contact (6) over the predetermined rotational angle of the switch shaft (4) and an area (12) which can be controlled by a cam (13) which can be displaced by the switch shaft (4).

Description

Elektromechanischer Schalter Electromechanical switch
Die Erfindung betrifft einen elektromechanischen Schalter gemäß dem Oberbegriff des Anspruches 1.The invention relates to an electromechanical switch according to the preamble of claim 1.
Ein derartiger elektromechanischer Schalter ist in der FR -AI -2 717 617 beschrieben. Dieser hat einen mittels eines Betätigungsknebels verschwenkbaren Kontaktträger, auf welchem bewegliche Kontakte verschwenkbar gehalten sind. Diese beweglichen Kontakte sind mittels Federn gegen Anschläge gedrückt. Oberhalb der oberen Enden der beweglichen Kontakte ist eine parallel zur Nerschwenkachse des Kontaktträgers verlaufende Welle gelagert, die auf Höhe jedes Kontaktes einen Arm trägt, der mit der Welle drehfest verbunden ist. Jeder dieser Arme weist eine Stirnfläche auf, an welcher der bewegliche Kontakt beim Nerschwenken des Kontaktträgers von der AUS- in die EL -Position zur Anlage kommt und der bewegliche Kontakt durch den Arm in seiner weiteren Bewegung gehemmt wird. Bei einer weiteren Nerschwenkung des Kontaktträgers in Richtung der EJJSf-Position, die den geschlossenen Kontaktpaaren, umfassend je einen festen Kontakt und einen beweglichen Kontakt, entspricht, werden die Federn der beweglichen Kontakte mehr und mehr gespannt. In weiterer Folge läuft ein Arm mit einer Erhöhung auf eine am Kontaktträger angeordneten Schrägfläche auf. Bei diesem Auflaufen wird dieser Arm angehoben, wobei aufgrund der drehfesten Verbindung der Arme mit der Welle alle Arme angehoben werden und die beweglichen Kontakte freigeben, die sich aufgrund der Vorspannung ihrer Federn sprungartig auf ihnen zugeordnete feste Kontakte zu bewegen.Such an electromechanical switch is described in FR-AI -2 717 617. This has a contact carrier which can be pivoted by means of an actuating knob, on which movable contacts are pivotably held. These movable contacts are pressed against stops by springs. Above the upper ends of the movable contacts is a shaft which runs parallel to the pivoting axis of the contact carrier and carries an arm at the level of each contact, which arm is connected to the shaft in a rotationally fixed manner. Each of these arms has an end face on which the movable contact comes to rest when the contact carrier is swiveled from the OFF to the EL position and the movable contact is inhibited by the arm in its further movement. When the contact carrier is pivoted further in the direction of the EJJSf position, which corresponds to the closed contact pairs, each comprising a fixed contact and a movable contact, the springs of the movable contacts are tensioned more and more. Subsequently, an arm runs with an elevation onto an inclined surface arranged on the contact carrier. During this run-up, this arm is raised, all arms being raised due to the rotationally fixed connection of the arms to the shaft, and releasing the movable contacts which, due to the pretensioning of their springs, suddenly move fixed contacts assigned to them.
Durch dieses sprungartige Anlegen der beweglichen Kontakte an die entsprechenden feststehenden Kontakte ist sichergestellt, dass der erforderliche Kontaktdruck sehr rasch aufgebaut wird und auch anfänglich ein niedriger Übergangswiderstand der Kontakte gewährleistet ist, wodurch die Gefahr einer Erhitzung und im Extremfall ein örtliches Verschweißen der Kontakte vermieden wird.This abrupt application of the movable contacts to the corresponding fixed contacts ensures that the required contact pressure is built up very quickly and that initially a low contact resistance of the contacts is ensured, thereby avoiding the risk of heating and, in extreme cases, local welding of the contacts.
Bei dieser Lösung ergibt sich jedoch der Nachteil, dass die Fixierung der Arme auf der Welle sehr genau erfolgen muss, was mit einem entsprechenden Herstellungsaufwand verbunden ist. Ziel der Erfindung ist es, diesen Nachteil zu vermeiden und einen Schalter der eingangs erwähnten Art vorzuschlagen, der sich unabhängig von der Anzahl seiner Schaltstrecken einfach herstellen lässt und bei dem dennoch ein rascher Aufbau des Kontaktdrucks bei händischer Betätigung des Schalters sichergestellt ist. Ferner ist es Ziel der Erfindung einen Schalter anzugeben, bei welchem auch nach einer hohen Anzahl an Schaltungen der rasche Aufbau der Kontaktstrecke einwandfrei funktioniert.However, this solution has the disadvantage that the arms must be fixed on the shaft very precisely, which is associated with a corresponding manufacturing outlay. The aim of the invention is to avoid this disadvantage and to propose a switch of the type mentioned at the outset which can be easily produced regardless of the number of its switching paths and which nevertheless ensures a rapid build-up of the contact pressure when the switch is operated manually. It is also the object of the invention to provide a switch in which the rapid build-up of the contact path functions perfectly even after a large number of circuits.
Erfindungsgemäß wird dies bei einem Schalter der eingangs erwähnten Art durch die kennzeichnenden Merkmale des Anspruches 1 erreicht.According to the invention this is achieved in a switch of the type mentioned at the outset by the characterizing features of claim 1.
Hierdurch wird unter Vermeidung eines hohen Bauteilaufwandes in konstruktiv einfacherThis makes it structurally simpler while avoiding a high expenditure on components
Weise ein rascher und sicherer sprungartiger Aufbau des Kontaktdruckes bei händischerWay a quick and safe abrupt build-up of contact pressure with manual
Betätigung des Schalters erreicht.Actuation of the switch reached.
Die Weiterbildung der Erfindung gemäß Patentanspruch 2 erlaubt es in einfacher WeiseThe development of the invention according to claim 2 allows it in a simple manner
Schalterkombinationen zu schaffen.To create switch combinations.
Durch die Anordnung der Hemmteile auf einer Achse, die naturgemäß kein Drehmoment überträgt, und die Vorspannung eines jeden Hemmteiles gegen dessen Hemmstellung erübrigen sich aufwendige Justierarbeiten, wie sie bei der bekannten Lösung erforderlich sind, um eine Hemmung der beweglichen Kontakte sicherstellen zu können.The arrangement of the inhibiting parts on an axis, which of course does not transmit any torque, and the pretensioning of each inhibiting part against its inhibiting position eliminates the need for complex adjustment work, as is required in the known solution, in order to be able to ensure that the moving contacts can be inhibited.
Eine bevorzugte Ausfuhrungsform der Erfindung kann somit bei einer Schalterkombination, die zumindest zwei aus jeweils einem beweglichen und einem zugehörigen feststehendenA preferred embodiment of the invention can thus be used for a switch combination that has at least two movable and one associated stationary switch
Kontakt bestehende Schaltstrecken aufweist, gemäß den kennzeichnenden Merkmale desContact has existing switching distances, according to the characteristic features of the
Patentanspruches 7 ausgeführt sein. Somit werden die einzelnen Hemmteile unabhängig voneinander über die Schaltwelle ausgelöst.Claim 7 be executed. The individual inhibiting parts are thus triggered independently of one another via the selector shaft.
Eine besonders hohe Verschleißfestigkeit des Hemmteils des erfindungsgemäßen Schalters kann durch die Merkmale des Patentanspruchs 3 bzw. 4 erreicht werden.A particularly high wear resistance of the inhibiting part of the switch according to the invention can be achieved by the features of claims 3 and 4, respectively.
Zur Verringerung der Platzbedarfs im Sinne einer kompakten Bauweise des Schalters hat sich das Merkmal gemäß Patentanspruch 5 als besonders zweckmäßig erwiesen.To reduce the space required in terms of a compact design of the switch, the feature according to claim 5 has proven to be particularly useful.
Die Erfindung wird nun anhand der Zeichnung näher erläutert. Dabei zeigen:The invention will now be explained in more detail with reference to the drawing. Show:
Fig. 1 eine axonometrische Darstellung eines erfindungsgemäßen Schalters mit abgehobenemFig. 1 is an axonometric view of a switch according to the invention with off
Deckel,Cover,
Fig. 2 einen Schnitt durch einen Schalter nach der Fig. 1 mit Deckel,2 shows a section through a switch according to FIG. 1 with cover,
Fig. 3 eine Draufsicht auf die beweglichen Kontakte mit Schaltwelle und Hemmteilen,3 is a plan view of the movable contacts with selector shaft and locking parts,
Fig. 4 einen Schnitt nach der Linie A-A der Fig. 3,4 shows a section along the line A-A of FIG. 3,
Fig. 5 einen Schnitt nach der Linie B-B der Fig. 3,5 shows a section along the line B-B of FIG. 3,
Fig. 6 eine Explosionsdarstellung der Anordnung nach Fig. 3 mit Schaltschloss undFig. 6 is an exploded view of the arrangement of FIG. 3 with key switch and
Betätigungshebel,Actuating lever,
Fig. 7 eine Explosionsdarstellung der Anordnung nach Fig.3 jedoch mit einer gegenüber7 shows an exploded view of the arrangement according to FIG. 3, however, with one opposite
Fig.6 versetzten Blickrichtung, Fig.8 und Fig.9 Ansichten des Hemmteils.Fig. 6 offset viewing direction, Fig. 8 and Fig. 9 views of the inhibiting part.
Der erfindungsgemäße elektromechanische Schalter kann für verschiedene Schaltfunktionen vorgesehen sein. Er kann beispielsweise ein gewöhnlicher EIN/ AUS- Schalter sein, der allein zum händischen Herstellen bzw. Unterbrechen einer elektrischen Verbindung dient. Hauptanwendungsgebiet für den erfindungsgemäßen Schalter ist jedoch die Schutzschalter- Technik, d.h. er ist in der Regel als Motorschutzschalter, Leitungsschutzschalter oder- so wie in den Zeichnungen dargestellt- als Fehlerstromschutzschalter ausgebildet. Die hier dargestellte Anzahl von vier Polstrecken ist nicht erfindungswesentlich, je nach konkretem Anwendungsfall kann der Schalter mehr oder weniger Polstrecken aufweisen. Der erfindungsgemäße Schalter weist ein Gehäuse 1 auf, in dem ein Schaltschloss 2 mit einem Betätigungshebel 3 gehalten sind. Dabei ist das Schaltschloss 2 mit einer Schaltwelle 4 gekoppelt, die mit Aufnahmen 5 für bewegliche Kontakte 6 versehen ist. Weiters sind in dem Gehäuse 1 Montageplatten 22 gehalten, welche in Ausnelimungen 21 jeweils Achsen 7 aufnehmen, aufweichen Hemmteile 8 von einander unabhängig schwenkbar gehalten sind. An diesen Montageplatten 22 sind Separatoren 9 angeformt, die zwischen je zwei Kontaktpaare hineinragen, welche Kontaktpaare je einen festen Kontakt 10, der im Gehäuse 1 gehalten ist, und einen beweglichen Kontakt 6 umfassen, der in einer Aufnahme 5 gehalten ist. Dabei sind die festen und beweglichen Kontakte 10, 6 über nicht dargestellte elektrische Verbindungen mit Klemmen 11 verbunden.The electromechanical switch according to the invention can be provided for various switching functions. For example, it can be a conventional ON / OFF switch that is used solely for the manual establishment or interruption of an electrical connection. However, the main area of application for the switch according to the invention is the circuit breaker technology, i.e. it is usually designed as a motor circuit breaker, circuit breaker or - as shown in the drawings - as a residual current circuit breaker. The number of four pole sections shown here is not essential to the invention; depending on the specific application, the switch can have more or fewer pole sections. The switch according to the invention has a housing 1 in which a switch lock 2 with an actuating lever 3 is held. The key switch 2 is coupled to a switching shaft 4, which is provided with receptacles 5 for movable contacts 6. Furthermore, mounting plates 22 are held in the housing 1, each of which accommodates axes 7 in Ausnelimungen 21, on which inhibiting parts 8 are held pivotably independently of one another. Separators 9 are formed on these mounting plates 22, which protrude between two contact pairs, which contact pairs each comprise a fixed contact 10, which is held in the housing 1, and a movable contact 6, which is held in a receptacle 5. The fixed and movable contacts 10, 6 are connected to terminals 11 via electrical connections, not shown.
Jeder Hemmteil 8 ist als hebelartiger Bauteil ausgebildet, an dessen einem Ende die Schwenkachse 7, und an dessen anderem Ende sowohl ein die Bewegung des beweglichen Kontaktes 6 über einen vorgegebenen Drehwinkel der Schaltwelle 4 hemmender Bereich als auch ein von einer von der Schaltwelle 4 bewegten Nooke 13 steuerbarer Bereich ausgebildet ist. Der hemmende Bereich ist durch eine hakenartige Abwinkelung 14 des Hemmteilendes ausgebildet, welches Hakenende in der Hemmteilslängsebene liegt. Eine den steuerbaren Bereich bildende Steuerfläche 12 ist an einer der hakenartigen Abwinkelungen 14 unmittelbar benachbarten, die Hemmteillängsebene überragenden Verbreiterung 24 ausgebildet. Zwischen seinen beiden Enden weist der aus Kunststoff bestehenden Hemmteil eine Kröpfung auf. Die hakenförmigen Abwinkelungen 14 der Hemmteile 8 wirken mit Fortsätzen 15 (Fig. 6) der beweglichen Kontakte 6 zusammen (Fig. 4). Dabei greifen bei geöffneten Kontakten 10, 6 die Fortsätze 15 der beweglichen Kontakte 6 in die hakenförmigen Abwinkelungen 14 der Hemmteile 8 ein (Fig. 2). Die beweglichen Kontakte 6 weisen an beiden Seiten, von deren Kontaktträger abstehende, fluchtende Ansätze 16 auf, die in Nuten der Aufnahmen 5 verschwenkbar gehalten sind. Dabei bilden diese Ansätze 16 die Schwenkachsen der beweglichen Kontakte 6. Die beweglichen Kontakte 6 sind über eine Feder 18, die einen im Kontaktträger des beweglichen Kontaktes 6 gehaltenen Führungsstiftes 19 umgibt, auf einem Wandteil 26 der Aufnahme 5 abgestützt und gegen einen Anschlag 20 der Aufnahme 5 vorgespannt, wobei die Federn 18 jeweils zwischen den Nuten 17 und den Anschlägen 20 angeordnet sind. Dabei ist der Ansatz 15 des beweglichen Kontaktes 6 an dessen an dem Anschlag 20 anliegenden Ende angeformt.Each inhibiting part 8 is designed as a lever-like component, at one end of which the pivot axis 7 and at the other end both an area which inhibits the movement of the movable contact 6 over a predetermined angle of rotation of the control shaft 4 and a nooke moved by the control shaft 4 13 controllable area is formed. The inhibiting area is formed by a hook-like bend 14 of the end of the inhibiting part, which end of the hook lies in the longitudinal plane of the inhibiting part. A control surface 12 forming the controllable region is formed on a widening 24 which is directly adjacent to the hook-like bends 14 and projects beyond the longitudinal plane of the inhibitor. Between its two ends, the plastic inhibitor part has a crank. The hook-shaped bends 14 of the inhibiting parts 8 interact with extensions 15 (FIG. 6) of the movable contacts 6 (FIG. 4). When contacts 10, 6 are open, the extensions 15 of the movable contacts 6 engage in the hook-shaped bends 14 of the inhibiting parts 8 (FIG. 2). The movable contacts 6 have, on both sides, aligned lugs 16 projecting from their contact carriers, which are held pivotably in grooves in the receptacles 5. These lugs 16 form the pivot axes of the movable contacts 6. The movable contacts 6 are supported by a spring 18, which surrounds a guide pin 19 held in the contact carrier of the movable contact 6, on a wall part 26 of the receptacle 5 and against a stop 20 of the receptacle 5 biased, the springs 18 are each arranged between the grooves 17 and the stops 20. In this case, the projection 15 of the movable contact 6 is integrally formed on its end abutting the stop 20.
Bei fortschreitender Verdrehung der Schaltwelle 4 in Richtung der Schließstellung der Kontakte 10, 6 und damit der Verdrehung der Aufnahme 5 wird die Feder 18 mehr und mehr vorgespannt, da das eine Ende, bzw. der Fortsatz 15 des beweglichen Kontaktes 6 von der hakenförmigen Abwinkelungen 14 des Hemmteiles 8 gehalten wird, während es zum Abheben des Kontaktträgers des beweglichen Kontaktes 6 vom Anschlag 20 kommt. Dabei verdreht sich auch die Nocke 13, nähert sich mehr und mehr der Steuerfläche 12 bis die Nocke 13 die Steuerfläche 12 berührt und dann der Hemmteil 8 durch die Nocke 13 weggedrückt wird. Dabei kommt es zu einem Verschwenken der Hemmteile 8 entgegen der Kraft je einer diese gegen deren Hemmstellung vorspannenden Feder 23 (Fig. 2, 6, 7). Bei Erreichen eines entsprechenden Drehwinkels der Schaltwelle 4 ist ein Hemmteil 8 soweit verschwenkt, dass seine hakenförmige Abwinkelung 14 außer Eingriff mit dem Fortsatz 15 des beweglichen Kontaktes 6 kommt und dieser von der Feder 18 mit hoher Kraft gegen den festen Kontakt 10 gedrückt wird, wodurch sich ein rascher Aufbau des Kontaktdruckes ergibt. Dabei kommt es zu diesem Sprungverhalten des beweglichen Kontaktes 6 bei einer Stellung des beweglichen Kontaktes, bei der zwischen diesem und dem festen Kontakt 10 noch ein beträchtlicher Spalt vorhanden ist.As the switching shaft 4 progressively rotates in the direction of the closed position of the contacts 10, 6 and thus the rotation of the receptacle 5, the spring 18 is biased more and more because the one end or the extension 15 of the movable contact 6 from the hook-shaped bends 14 of the inhibiting part 8 is held while there is a lifting of the contact carrier of the movable contact 6 from the stop 20. The cam 13 also rotates, approaches the control surface 12 more and more until the cam 13 touches the control surface 12 and then the inhibiting part 8 is pushed away by the cam 13. There is a pivoting of the inhibiting parts 8 against the force of a respective spring 23 biasing them against their inhibiting position (FIGS. 2, 6, 7). When a corresponding angle of rotation of the control shaft 4 is reached, an inhibiting part 8 is pivoted to such an extent that its hook-shaped bend 14 disengages from the extension 15 of the movable contact 6 and this is pressed by the spring 18 against the fixed contact 10 with high force, as a result of which a quick build-up of the contact pressure results. This leads to this jumping behavior of the movable contact 6 in a position of the movable contact in which there is still a considerable gap between the latter and the fixed contact 10.
Ein Öffnen der Kontakte 6, 10 erfolgt durch entsprechende Betätigung des Betätigungshebels 3 und des Schaltschlosses 2, das mit der Schaltwelle 4 gekoppelt ist. Dabei wird die Schaltwelle 4 und deren Aufnahmen 5 zurückgedreht, wodurch dann die in der Fig. 2 dargestellte Lage erreicht wird.The contacts 6, 10 are opened by corresponding actuation of the actuation lever 3 and the switch lock 2, which is coupled to the control shaft 4. The selector shaft 4 and its receptacles 5 are turned back, as a result of which the position shown in FIG. 2 is then reached.
Wie vorstehend erläutert und aus den Zeichnungen ersichtlich sind die einzelnen Schaltstrecken gleichartig aufgebaut und zwar so, dass jedem beweglichen Kontakt 6 ein Hemmteil 8 zugeordnet ist, wobei die Hemmteile 8 unabhängig um die parallel zur Schaltwelle 4 verlaufende Achse 8 verschwenkbar sind. Zum Aufbau eines Schalters mit w Schaltstrecken können daher w gleichartig aufgebaute Schaltstrecken verwendet werden, welche lediglich auf einer entsprechend langen Schaltwelle 4 anzuordnen sind. Es bedarf daher zum Aufbau eines w- poligen Schalters keiner besonderer, aufeinander abgestimmter Bauteile bzw. keiner aufwändiger Abstimm- bzw. Justierarbeiten. As explained above and as can be seen from the drawings, the individual switching paths are constructed in the same way and in such a way that an inhibiting part 8 is assigned to each movable contact 6, the inhibiting parts 8 being independent of the parallel to the Switch shaft 4 extending axis 8 are pivotable. To build a switch with w switching paths, w switching paths of the same design can therefore be used, which are only to be arranged on a correspondingly long switching shaft 4. To set up a w-pole switch, therefore, no special, coordinated components or elaborate tuning or adjustment work is required.

Claims

P A T E N T A N S P RÜ C H E PATENT REPRESENTATION
1. Elektromechanischer Schalter, wie z.B. Leitungsschutzschalter oder Fehlerstromschutzschalter mit mindestens einem feststehenden Kontakt (10) und zumindest einem mit diesem zusammenwirkenden beweglichen Kontakt (6), der an einer zumindest eine Nocke (13) bewegenden Schaltwelle (4) schwenkbar gehalten ist und mittels einer Feder (18) in Richtung der Schließstellung der jeweils zusammenwirkenden Kontakte (10, 6) vorgespannt ist, wobei der bewegliche Kontakt (6) in einer der geöffneten Stellung der zusammenwirkenden Kontakte (10, 6) entsprechenden Stellung der Schaltwelle (4), die über einen Betätigungshebel (3) verdrehbar ist, an einem Anschlag (20) der Schaltwelle (4) anliegt und der bewegliche Kontakt (6) weiters einen Fortsatz (15) aufweist, der mit einem Hemmteil (8) zusammenwirkt, der verschwenkbar gehalten und über einen vorgegebenen Drehwinkel der Schaltwelle (4) die Bewegung des beweglichen Kontaktes (6) hemmt und nach Überschreiten eines vorgegebenen Drehwinkels der Schaltwelle (4) den beweglichen Kontakt (6) freigibt, dadurch gekennzeichnet, dass der Hemmteil (8) schwenkbar an einer parallel zur Schaltwelle (4) verlaufenden Achse (7) gehalten und gegen dessen Hemmstellung vorgespannt ist, und dass der Hemmteil (8) sowohl mit einem die Bewegung des beweglichen Kontaktes (6) über den vorgegebenen Drehwinkel der Schaltwelle (4) hemmenden Bereich (14) als auch mit einem von einer von der Schaltwelle (4) bewegten Nocke (13) steuerbaren Bereich (12) ausgebildet ist.1. Electromechanical switch, e.g. Miniature circuit breaker or residual current circuit breaker with at least one fixed contact (10) and at least one movable contact (6) cooperating with it, which is pivotably held on a switching shaft (4) moving at least one cam (13) and by means of a spring (18) in the direction of the The closed position of the respective cooperating contacts (10, 6) is pretensioned, the movable contact (6) being in a position of the control shaft (4) corresponding to the open position of the cooperating contacts (10, 6), which can be rotated via an actuating lever (3) , bears against a stop (20) of the selector shaft (4) and the movable contact (6) further has an extension (15) which cooperates with an inhibiting part (8) which is held pivotably and over a predetermined angle of rotation of the selector shaft (4) inhibits the movement of the movable contact (6) and, after exceeding a predetermined angle of rotation of the control shaft (4), the movable contact (6) fr there, characterized in that the inhibiting part (8) is pivotally held on an axis (7) running parallel to the selector shaft (4) and is biased against its inhibiting position, and in that the inhibiting part (8) is connected both to the movement of the movable contact (6 ) over the predetermined angle of rotation of the selector shaft (4) inhibiting area (14) as well as with an area (12) controllable by a cam (13) moved by the selector shaft (4).
2. Schalter gemäß Anspruch 1, dadurch gekennzeichnet, dass der Hemmteil (8) als hebelartiger Bauteil ausgebildet ist, an dessen einem Ende eine Schwenkachse (7) und an dessen anderem Ende sowohl der die Bewegung des beweglichen Kontaktes (6) über den vorgegebenen Drehwinkel der Schaltwelle (4) hemmende Bereich (14) als auch der von einer von der Schaltwelle (4) bewegten Nocke (13) steuerbare Bereich (12) ausgebildet ist.2. Switch according to claim 1, characterized in that the inhibiting part (8) is designed as a lever-like component, at one end a pivot axis (7) and at the other end of both the movement of the movable contact (6) over the predetermined angle of rotation the control shaft (4) inhibiting area (14) and the area (12) controllable by a cam (13) moved by the control shaft (4).
3. Schalter gemäß Anspruch 2, dadurch gekennzeichnet, dass das andere Ende des hebelartigen Bauteils einerseits zur Hemmung der Kontaktbewegung in Form eines Hakens (14) abgewinkelt und andererseits zur Steuerung durch die Nocke (3) in Form einer Steuerfläche (12) ausgebildet ist. 3. Switch according to claim 2, characterized in that the other end of the lever-like component is angled on the one hand to inhibit the contact movement in the form of a hook (14) and on the other hand is designed for control by the cam (3) in the form of a control surface (12).
4. Schalter nach Anspruch 3, dadurch gekennzeichnet, dass die Steuerfläche an einer eine längsseitige Begrenzungsfläche des hebelartigen Bauteils überragenden Verbreiterung (24) ausgebildet ist.4. Switch according to claim 3, characterized in that the control surface is formed on a widening (24) projecting over a longitudinal boundary surface of the lever-like component.
5. Schalter nach einem der Ansprüche 2, 3 oder 4, dadurch gekennzeichnet, dass der hebelartige Bauteil gekröpft (25) ausgebildet ist.5. Switch according to one of claims 2, 3 or 4, characterized in that the lever-like component is cranked (25).
6. Schalter nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Hemmteil (8) aus Kunststoff hergestellt ist.6. Switch according to one of claims 1 to 5, characterized in that the inhibiting part (8) is made of plastic.
7. Schalter nach einem der Ansprüche 1 bis 6, welcher zumindest zwei aus jeweils einem beweglichen und einem zugehörigen feststehenden Kontakt bestehende Schaltstrecken aufweist, dadurch gekennzeichnet, dass jedem beweglichen Kontakt ein Hemmteil (8) zugeordnet ist, und dass die Hemmteile (8) voneinander unabhängig um die parallel zur Schaltwelle (4) verlaufende Achse (7) verschwenkbar sind. 7. Switch according to one of claims 1 to 6, which has at least two switching paths each consisting of a movable and an associated fixed contact, characterized in that each movable contact is assigned an inhibiting part (8), and that the inhibiting parts (8) from each other can be pivoted independently about the axis (7) running parallel to the selector shaft (4).
EP04802014A 2004-01-19 2004-12-22 Electromechanical switch Expired - Fee Related EP1709660B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT562004A AT414318B (en) 2004-01-19 2004-01-19 ELECTROMECHANICAL SWITCH
PCT/AT2004/000452 WO2005069336A1 (en) 2004-01-19 2004-12-22 Electromechanical switch

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EP1709660A1 true EP1709660A1 (en) 2006-10-11
EP1709660B1 EP1709660B1 (en) 2007-05-09

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EP (1) EP1709660B1 (en)
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DE (1) DE502004003810D1 (en)
WO (1) WO2005069336A1 (en)

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WO2013003057A1 (en) * 2011-06-27 2013-01-03 Schneider Electric USA, Inc. Moveable contact closing energy transfer system for miniature circuit breakers

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WO2013003057A1 (en) * 2011-06-27 2013-01-03 Schneider Electric USA, Inc. Moveable contact closing energy transfer system for miniature circuit breakers
US8604374B2 (en) 2011-06-27 2013-12-10 Schneider Electric USA, Inc. Moveable contact closing energy transfer system for miniature circuit breakers

Also Published As

Publication number Publication date
ATA562004A (en) 2006-07-15
WO2005069336A1 (en) 2005-07-28
EP1709660B1 (en) 2007-05-09
AT414318B (en) 2007-02-15
DE502004003810D1 (en) 2007-06-21

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