EP1687835B1 - Switching device - Google Patents

Switching device Download PDF

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Publication number
EP1687835B1
EP1687835B1 EP04797530A EP04797530A EP1687835B1 EP 1687835 B1 EP1687835 B1 EP 1687835B1 EP 04797530 A EP04797530 A EP 04797530A EP 04797530 A EP04797530 A EP 04797530A EP 1687835 B1 EP1687835 B1 EP 1687835B1
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EP
European Patent Office
Prior art keywords
sidewalls
switching device
cage
slide
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP04797530A
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German (de)
French (fr)
Other versions
EP1687835A1 (en
Inventor
Rudolf Kinzler
Ludwig Niebler
Anton Scharf
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Siemens AG
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Siemens AG
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Publication date
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Priority to PL04797530T priority Critical patent/PL1687835T3/en
Publication of EP1687835A1 publication Critical patent/EP1687835A1/en
Application granted granted Critical
Publication of EP1687835B1 publication Critical patent/EP1687835B1/en
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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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the invention relates to a switching device having a switching structure comprising a cage assembly having two opposing first side walls and a bottom wall connecting them integrally, wherein the cage assembly is at least partially formed as a cage in which a slider is slidably mounted, wherein in an opening of the slide a fixed contacts associated movable contact bridge is held under the action of a contact pressure spring, and wherein a clearance between the two first side walls is provided for the displacement of the contact bridge, and wherein a stop is provided for holding the slider.
  • each Polstromweg contains two fixed contacts and two arranged on a movable contact bridge movable contacts through which a pole switch with double break is formed.
  • the movable contact bridge is acted upon by a mechanism for opening and closing the contacts. This is done via a pusher, which is guided in a fixed cage.
  • the cage is made of insulating material and includes a bottom wall and side walls extending vertically therefrom, and is provided with windows sized to permit displacement of the contact bridge, particularly under the action of the opening and closing mechanism in the event of electrodynamic recoil. In addition, the windows determine an upper stop for the contact bridge.
  • a contact pressure spring is disposed between the bottom wall of the cage and the contact bridge in a central cavity of the cage, which serves as a seat and translational guidance of the pusher.
  • the pusher is thus against the inner surfaces of the side walls led the cage.
  • the walls of the pusher have openings sized to permit, on the one hand, the introduction of the contact bridge into the pusher and, on the other hand, angular movement of the bridge with respect to the pusher.
  • the cage includes insulating wings that extend longitudinally a distance that is slightly greater than the length of the contact bridge, and whose height is sufficient to create a volume containing the opening arcs.
  • this switching chamber assembly is carried out in such a way that the first pusher or slider is inserted into the cage and held in a defined position. As a result, a window in the slide is accessible from the side under the webs forming the stops. After the contact pressure spring is inserted from above through a hole in the slide in the cage, after moving the spring by means of a punch in the still free space of the window, the movable contact piece is inserted and finally rotated by a 90 ° rotation in its final operating position.
  • a switching device of the above type is the DE 59901859 G refer to.
  • the switching structure 1 consists in the drawing shown essentially of two parallel, elongated side walls 5, which are connected at its bottom by a bottom wall 6, not shown here.
  • the gap 7 between the two side walls 5, ie the interior, is accessible on all sides except for the connection through the bottom wall 6.
  • a guide channel 10 is formed by contours 9 in the side walls 5, which is provided in the side walls 5 with slots 11.
  • the movable contact bridge 3 is also inserted from above into the interior.
  • the guide channel 10 is adapted to the slider 4 in its dimensions. This is introduced after the movable contact bridge 3 in the guide channel 10 and locks it with its laterally arranged locking lugs 12 in said slots 11 and comes on the contact bridge 3 to support.
  • the slide 4 has an opening 15, which is designed as a recess on the underside for receiving the contact bridge 3.
  • the upper boundary of the slots 11 serves as a stop 18 for the slide 4.
  • the side walls 5 are provided externally with grooves 13, are plugged into the quenching plates 16 of a splitter stack 17.
  • the complete assembly 1, which consists of switching structure and plugged arc chamber is in a lower part 19 of the switching device according to FIG. 3 plugged.
  • the contact slide 4 By connecting the two preassembled lower 19 and upper parts 20, the contact slide 4 come in the lower part 19 and the switching mechanism in the upper part 20 into engagement. This results in the problem that when switching high currents, such as short circuits, in the switching chamber assembly, an arc plasma is created, which can get over column in the upper part 20 and there may cause damage by, for example, phase arcing from one flow path to another, smoke and thus shorts on a printed circuit board, etc. occur. In order to prevent this, the goal is always to keep the gap between lower part 19 and upper part 20 as small as possible. A contradiction arises in the area of the contact slide 4. When joining lower part 19 and Upper part 20, the contact slide 4 are inserted into openings on the upper part 20. Too small a gap may result in an offset of the upper part 20 to the lower part 19 for jamming the contact slide 4.
  • the invention has for its object to provide a switching device of the type mentioned above with a switching structure, in which jamming of the contact slide due to component tolerances and / or thermal and mechanical stresses is avoided as possible.
  • switching chambers formed by insulating second side walls belong to the switching structure.
  • the second side walls define a volume containing the aperture arcs and are disposed on opposite sides of the cage assembly comprising the cage and separated therefrom by a gap.
  • An advantageous development of the invention is when in the gap in each case a first web of insulating positively engages in order to avoid any harmful thermal stresses through the opening arcs.
  • the first web is part of a lower part of the switching device, in which the cage assembly is arranged with the cage.
  • the two first side walls are connected on the side facing away from the bottom wall by at least one second web, thereby at least one of the free spaces for the contact bridge is limited. This is e.g. given a stop for the contact bridge.
  • the cage assembly with the cage is thereby stabilized.
  • Another advantage is when the two second side walls are integrally connected to each other and U-shaped.
  • the two second side walls In order to avoid a collapse of the two second side walls, they are fixed on the side facing away from their connection by spacer means.
  • the spacing means are not part of the second side walls.
  • the first and the second side walls are components of an originally one-piece molded part made of insulating material with a view to simple production.
  • the second side walls are surrounded by quenching plates.
  • at least one blower plate per switching point is provided for influencing the opening arc.
  • a further advantageous embodiment is when the first side walls have the stop for the slider.
  • the slider can be locked in a simple manner with the first side walls.
  • the slider on locking elements which engage in longitudinally formed to the direction of movement of the slider slots. This means that there is a loose locking connection between the slider and the first side walls, which allows the displacement of the slider during the switching operation.
  • the switching device has a switching structure 1, which comprises a cage assembly 24 and spaced therefrom with a gap 27 two splitter assemblies 22 as in FIG. 6 shown.
  • the cage assembly 24 has a cage 21 formed from two opposite first side walls 5 and a bottom wall 6 integrally connecting them FIGS. 5 and 6 in which a slider 4 is slidably mounted. In an opening 15 of the slider 4, a fixed contacts associated movable contact bridge 3 is held under the action of a contact pressure spring 2.
  • the cage 21 has from its interior 7 to the outside a passage 14 which allows a substantially transverse to the longitudinal extent of the contact bridge 3 directed insertion thereof into the interior of the cage 21 for mounting between the contact pressure spring 2 and the slide 4.
  • the switching structure 1 further comprises switching chambers formed by insulating second side walls 23 in which an opening arc is produced when a high current is switched off.
  • the quenching plates 16 have an area with elongated feet that surround the second side walls 23 and are critical to the path travel of the arc from the pad.
  • the second side walls 23 together with the quenching plates 16 form the splitter assembly 22.
  • On opposite sides of the cage assembly 24 and spaced therefrom by a gap 27, a splitter assembly 22 is disposed in each case, which surrounds the contact bridge 3 partially, as in FIG. 6 shown.
  • the first 5 and the second 23 side walls can according to a particularly simple manufacturing process components of an originally integral molding of insulating material according to FIG. 1 be.
  • the first side walls 5 have the stop 18 for the slide 4.
  • the slider 4 can be latched to the first side walls 5 and has latching elements 12 which engage in slots 11 formed longitudinally to the direction of movement of the slider 4.
  • the two first side walls 5 are connected only at two opposite longitudinal sides by a bottom wall 6, on which the contact pressure spring 2 is supported.
  • FIG. 7 shows a molded usually made of insulating lower part 19 with a first web 28 which engages positively in the gap 27 between the cage assembly 24 and the second side walls 23.
  • the two first side walls 5 are connected on the side facing away from the bottom wall 6 side according to a second embodiment by an at least second web 29 with each other.
  • the second web 29 can serve here for stiffening the cage assembly 24 and / or as a stop for the contact bridge 3.
  • the two second side walls 23 may be integrally connected to one another and U-shaped as in FIG FIG. 9 shown.
  • the spacing means 30 are designed here as projections on the fixed contacts, which are arranged in the upper part 20.
  • FIG. 10 shows a switching structure of a switching device according to the invention prior to installation in a lower part, ie the side walls 23 with the quenching plates 16 and cage assembly 24 are separate components.
  • the invention also relates to a method for producing a switching device according to the invention with the switching structure 1 described above, which will be described below.
  • the molded part is produced, which comprises the cage 21 formed from the two opposite first side walls 5 and the bottom wall 6 connecting them in one piece and the second side walls 23 integrally connected to the cage 21.
  • the first 5, the second side walls 23 and the bottom wall 6 an interior space is formed, which has in a plane substantially parallel to the bottom wall 6 outwardly a passage 14 of at least the length of the contact bridge 3.
  • the side walls 23, which are referred to as laterally insulating wings, are separated after the cage 21 has been fitted with the contact pressure spring 21, the contact bridge 3 and the slide 4.
  • the resulting cage assembly 24 and the separated side walls 23 are in turn used with or without quenching plates in the lower part 19 of the switching device and thereby arranged away from each other with a defined gap 27.
  • the edge contours of the column 27 are preferably predetermined by the production.

Landscapes

  • Slide Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Eye Examination Apparatus (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
  • Breakers (AREA)
  • Push-Button Switches (AREA)
  • Lubricants (AREA)

Abstract

The gear has a cage assembly (24) with two oppositely facing side panels (5) and a floor panel (6). A slider (4) has an opening to which a moveable contact bridge (3) is fixed to provide a firm contact between the slider and a contact spring (2). Sidewalls (23) of the panels form a space into which the bridge moves during the switching process. The panels are connected to a gutter on the side opposite to a floor panel. An independent claim is also included for a method of manufacturing a switch gear.

Description

Die Erfindung bezieht sich auf ein Schaltgerät mit einer Schaltstruktur, die eine Käfig-Baugruppe mit zwei gegenüberliegenden ersten Seitenwänden und eine diese einstückig verbindende Bodenwand umfasst, wobei die Käfig-Baugruppe zumindest teilweise als Käfig ausgebildet ist, in dem ein Schieber verschiebbar gelagert ist, wobei in einer Öffnung des Schiebers eine festen Kontakten zugeordnete bewegliche Kontaktbrücke unter Beaufschlagung einer Kontaktdruckfeder gehalten ist, und wobei für die Verschiebung der Kontaktbrücke ein Freiraum zwischen den beiden ersten Seitenwänden vorgesehen ist, und wobei zur Halterung des Schiebers ein Anschlag vorgesehen ist.The invention relates to a switching device having a switching structure comprising a cage assembly having two opposing first side walls and a bottom wall connecting them integrally, wherein the cage assembly is at least partially formed as a cage in which a slider is slidably mounted, wherein in an opening of the slide a fixed contacts associated movable contact bridge is held under the action of a contact pressure spring, and wherein a clearance between the two first side walls is provided for the displacement of the contact bridge, and wherein a stop is provided for holding the slider.

In der DE 693 02 599 T2 ist ein mehrpoliger Trennschalter offenbart, bei dem für jeden Polstromweg eine Trennstruktur mit trennbaren Kontakten vorgesehen ist. Jeder Polstromweg enthält zwei feste Kontakte und zwei auf einer beweglichen Kontaktbrücke angeordnete bewegliche Kontakte, durch die ein Polschalter mit doppelter Unterbrechung gebildet wird. Die bewegliche Kontaktbrücke wird durch einen Mechanismus zur Öffnung und Schließung der Kontakte beaufschlagt. Dies erfolgt über einen Drücker, der in einem festen Käfig geführt wird. Der Käfig besteht aus isolierendem Material und enthält eine Bodenwand und davon senkrecht abstehende Seitenwände und ist mit so bemessenen Fenstern versehen, dass sie die Verschiebung der Kontaktbrücke, insbesondere unter der Wirkung des Öffnungs- und Schließmechanismus im Fall eines elektrodynamischen Rückstoßes erlauben. Außerdem bestimmen die Fenster einen oberen Anschlag für die Kontaktbrücke. Eine Kontaktdruckfeder ist zwischen der Bodenwand des Käfigs und der Kontaktbrücke in einer zentralen Aushöhlung des Käfigs angeordnet, die als Sitz und translatorische Führung des Drückers dient. Der Drücker wird so gegen die Innenflächen der Seitenwände des Käfigs geführt. Die Wände des Drückers weisen Öffnungen auf, die so bemessen sind, dass sie einerseits die Einführung der Kontaktbrücke in den Drücker und andererseits eine Winkelbewegung der Brücke in Bezug auf den Drücker erlauben. Der Käfig enthält isolierende Flügel, die in Längsrichtung über eine Strecke verlaufen, die etwas größer ist als die Länge der Kontaktbrücke, und deren Höhe ausreicht, um ein Volumen zu erzeugen, das die Öffnungs-Lichtbögen enthält.In the DE 693 02 599 T2 discloses a multi-pole circuit breaker is disclosed in which a separation structure is provided with separable contacts for each Polstromweg. Each Polstromweg contains two fixed contacts and two arranged on a movable contact bridge movable contacts through which a pole switch with double break is formed. The movable contact bridge is acted upon by a mechanism for opening and closing the contacts. This is done via a pusher, which is guided in a fixed cage. The cage is made of insulating material and includes a bottom wall and side walls extending vertically therefrom, and is provided with windows sized to permit displacement of the contact bridge, particularly under the action of the opening and closing mechanism in the event of electrodynamic recoil. In addition, the windows determine an upper stop for the contact bridge. A contact pressure spring is disposed between the bottom wall of the cage and the contact bridge in a central cavity of the cage, which serves as a seat and translational guidance of the pusher. The pusher is thus against the inner surfaces of the side walls led the cage. The walls of the pusher have openings sized to permit, on the one hand, the introduction of the contact bridge into the pusher and, on the other hand, angular movement of the bridge with respect to the pusher. The cage includes insulating wings that extend longitudinally a distance that is slightly greater than the length of the contact bridge, and whose height is sufficient to create a volume containing the opening arcs.

Die Montage dieser Schaltkammer-Baugruppe erfolgt in der Weise, dass zuerst der Drücker bzw. Schieber in den Käfig eingeführt und in einer definierten Stellung gehalten wird. Hierdurch wird von der Seite her unter den die Anschläge bildenden Stegen ein Fenster im Schieber zugänglich. Nachdem die Kontaktdruckfeder von oben her durch ein Loch im Schieber in den Käfig eingeführt ist, wird nach Durchdruck der Feder mittels eines Stempels in den noch freien Raum des Fensters das bewegliche Schaltstück eingeführt und schließlich durch eine 90°-Drehung in seine endgültige Betriebslage gedreht.The assembly of this switching chamber assembly is carried out in such a way that the first pusher or slider is inserted into the cage and held in a defined position. As a result, a window in the slide is accessible from the side under the webs forming the stops. After the contact pressure spring is inserted from above through a hole in the slide in the cage, after moving the spring by means of a punch in the still free space of the window, the movable contact piece is inserted and finally rotated by a 90 ° rotation in its final operating position.

Ein Schaltgerät der obengenannten Art ist der DE 59901859 G zu entnehmen. Diese offenbart eine Schaltstruktur 1, eine Kontaktdruckfeder 2, eine bewegliche Kontaktbrücke 3 und einen Schieber 4 in einer Explosionsdarstellung gemäß FIG 1. Die Schaltstruktur 1 besteht in der gezeichneten Darstellung im wesentlichen aus zwei parallelen, länglichen Seitenwänden 5, die an ihrer Unterseite durch eine hier nicht dargestellte Bodenwand 6 verbunden sind. Der Zwischenraum 7 zwischen beiden Seitenwänden 5, d.h. der Innenraum, ist bis auf die Verbindung durch Bodenwand 6 allseitig zugänglich. Mittig und quer zu den Längsseiten 8 ist durch Konturen 9 in den Seitenwänden 5 ein Führungskanal 10 gebildet, der in den Seitenwänden 5 mit Schlitzen 11 versehen ist. Nach Einführung der Kontaktdruckfeder 2 in diesen Führungskanal 10 und Abstützung an der Bodenwand 6 wird die bewegliche Kontaktbrücke 3 ebenfalls von oben her in den Innenraum eingeführt. Der Führungskanal 10 ist in seinen Abmessungen dem Schieber 4 angepasst. Dieser wird nach der beweglichen Kontaktbrücke 3 in den Führungskanal 10 eingeführt und verrastet dabei mit seinen seitlich angeordneten Rastnasen 12 in den genannten Schlitzen 11 und kommt auf der Kontaktbrücke 3 zur Auflage. Hierzu weist der Schieber 4 eine Öffnung 15 auf, die als Ausnehmung an der Unterseite zur Aufnahme der Kontaktbrücke 3 ausgeführt ist. Die obere Begrenzung der Schlitze 11 dient hier als Anschlag 18 für den Schieber 4. Die Seitenwände 5 sind außen mit Nuten 13 versehen, in die Löschbleche 16 eines Löschblechpakets 17 aufgesteckt werden. Nach Montage der obengenannten Komponenten ergibt sich eine Baugruppe 1 gemäß FIG 2. Die beschriebene Schaltstruktur 1 besitzt seitlich isolierende Flügel, welche einen Innenraum der Schaltkammer, in dem im Betrieb des Schaltgeräts Öffnungs-Lichtbögen entstehen, von einem Außenraum der Schaltkammer, in dem Bereiche der Lichtbogenlöscheinrichtung untergebracht sind, trennen.A switching device of the above type is the DE 59901859 G refer to. This discloses a switching structure 1, a contact pressure spring 2, a movable contact bridge 3 and a slide 4 in an exploded view according to FIG. 1 , The switching structure 1 consists in the drawing shown essentially of two parallel, elongated side walls 5, which are connected at its bottom by a bottom wall 6, not shown here. The gap 7 between the two side walls 5, ie the interior, is accessible on all sides except for the connection through the bottom wall 6. Centered and transverse to the longitudinal sides 8, a guide channel 10 is formed by contours 9 in the side walls 5, which is provided in the side walls 5 with slots 11. After introduction of the contact pressure spring 2 in this guide channel 10 and support on the bottom wall 6, the movable contact bridge 3 is also inserted from above into the interior. The guide channel 10 is adapted to the slider 4 in its dimensions. This is introduced after the movable contact bridge 3 in the guide channel 10 and locks it with its laterally arranged locking lugs 12 in said slots 11 and comes on the contact bridge 3 to support. For this purpose, the slide 4 has an opening 15, which is designed as a recess on the underside for receiving the contact bridge 3. The upper boundary of the slots 11 serves as a stop 18 for the slide 4. The side walls 5 are provided externally with grooves 13, are plugged into the quenching plates 16 of a splitter stack 17. After mounting the above components, an assembly 1 according to FIG. 2 , The switching structure 1 described has laterally insulating wings, which separate an interior of the switching chamber, in which arise during operation of the switching device opening arcs of an outer space of the switching chamber in which areas of the arc quenching device.

Die komplette Baugruppe 1, die aus Schaltstruktur und aufgesteckter Lichtbogenkammer besteht, wird in ein Unterteil 19 des Schaltgeräts gemäß FIG 3 gesteckt. Auf das bestückte Unterteil 19 wird ein Oberteil 20 gemäß FIG 4 gerastet, in dem feste Kontakte, Auslöse-, Schaltmechaniken und sonstige Bauteile eingesteckt sind .The complete assembly 1, which consists of switching structure and plugged arc chamber is in a lower part 19 of the switching device according to FIG. 3 plugged. On the stocked lower part 19 is an upper part 20 according to FIG. 4 snapped in the solid contacts, tripping, switching mechanisms and other components are plugged.

Durch das Verbinden der beiden vormontierten Unter- 19 und Oberteile 20 kommen die Kontaktschieber 4 im Unterteil 19 und die Schaltmechanik im Oberteil 20 in Eingriff. Dabei ergibt sich das Problem, dass beim Schalten von hohen Strömen , wie z.B. bei Kurzschlüssen, in der Schaltkammerbaugruppe ein Lichtbogenplasma entsteht, welches über Spalte in das Oberteil 20 gelangen kann und dort Schäden verursachen kann, indem z.B. Phasenüberschläge von einer Strombahn zur anderen, Schmauch und damit Kurzschlüsse auf einer Flachbaugruppe, usw. auftreten. Um dies zu verhindern gilt stets das Ziel, die Spalte zwischen Unterteil 19 und Oberteil 20 möglichst klein zu halten. Ein Widerspruch ergibt sich im Bereich der Kontaktschieber 4. Beim Zusammenfügen von Unterteil 19 und Oberteil 20 werden die Kontaktschieber 4 in Öffnungen am Oberteil 20 eingeführt. Ein zu kleiner Spalt kann bei einem Versatz von Oberteil 20 zum Unterteil 19 zum Verklemmen des Kontaktschiebers 4 führen.By connecting the two preassembled lower 19 and upper parts 20, the contact slide 4 come in the lower part 19 and the switching mechanism in the upper part 20 into engagement. This results in the problem that when switching high currents, such as short circuits, in the switching chamber assembly, an arc plasma is created, which can get over column in the upper part 20 and there may cause damage by, for example, phase arcing from one flow path to another, smoke and thus shorts on a printed circuit board, etc. occur. In order to prevent this, the goal is always to keep the gap between lower part 19 and upper part 20 as small as possible. A contradiction arises in the area of the contact slide 4. When joining lower part 19 and Upper part 20, the contact slide 4 are inserted into openings on the upper part 20. Too small a gap may result in an offset of the upper part 20 to the lower part 19 for jamming the contact slide 4.

Zur Lösung des Problems sind im Wesentlichen zwei Lösungsansätze bekannt:

  1. 1. Die Öffnungen im Oberteil sind entsprechend groß ausgeführt, sodass der maximal auftretende Versatz von Oberteil zum Unterteil zu keiner Verklemmung des Kontaktschiebers führen kann. Damit entsteht zwangsläufig ein großer Spalt zwischen Oberteil und Unterteil.
  2. 2. Die Öffnung im Oberteil ist so ausgeführt, dass nach dem Zusammenfügen von Oberteil und Unterteil ein kleiner Spalt zwischen Kontaktschieber und Öffnung im Oberteil entsteht. Die komplette Baugruppe, die aus Schaltstruktur und aufgesteckter Lichtbogenkammer besteht, wird nicht im Unterteil fixiert. Am Oberteil sind Eingriffe angeformt. Beim Zusammenfügen von Oberteil und Unterteil übernehmen die angeformten Eingriffe am Oberteil die Fixierung. Damit ist der Nachteil verbunden, dass die Eingriffe aus konstruktiven Gegebenheiten nicht stabil genug sind, um den Belastungen standzuhalten, die von den Lichtbogenkammern herrühren, z.B. den mechanischen Belastungen bei Kurzschlussabschaltungen, Beanspruchungen aufgrund Schwingungen oder Schock beim Transport oder im Einsatz, etc. Eine Deformation der Eingriffe ist die Folge, was somit wiederum zum Verklemmen der Kontaktschieber führt.
To solve the problem essentially two approaches are known:
  1. 1. The openings in the upper part are designed to be large, so that the maximum occurring offset of upper part to the lower part can lead to no jamming of the contact slide. This inevitably creates a large gap between the upper part and the lower part.
  2. 2. The opening in the upper part is designed so that after assembly of the upper part and lower part, a small gap between the contact slide and opening in the upper part is formed. The complete assembly, which consists of switching structure and plugged arc chamber is not fixed in the lower part. At the top of interventions are formed. When joining the upper part and the lower part, the molded-on interventions on the upper part take over the fixation. This has the disadvantage that the interventions from constructional conditions are not stable enough to withstand the stresses that result from the arc chambers, eg the mechanical loads in short-circuit shutdowns, stresses due to vibration or shock during transport or in use, etc. A deformation the interventions is the result, which in turn leads to jamming of the contact slide.

Daher liegt der Erfindung die Aufgabe zugrunde, ein Schaltgerät der obengenannten Art mit einer Schaltstruktur zu schaffen, bei der ein Verklemmen des Kontaktschiebers aufgrund von Bauteiletoleranzen und/oder thermischen und mechanischen Belastungen möglichst vermieden wird.Therefore, the invention has for its object to provide a switching device of the type mentioned above with a switching structure, in which jamming of the contact slide due to component tolerances and / or thermal and mechanical stresses is avoided as possible.

Weiterhin ist es Aufgabe der Erfindung ein einfaches Verfahren zur Herstellung eines solchen Schaltgeräts anzugeben.It is another object of the invention to provide a simple method for producing such a switching device.

Die Aufgabe wird durch die Merkmale gemäß Anspruch 1 gelöst.The object is solved by the features of claim 1.

Dabei gehören zur Schaltstruktur durch isolierende zweite Seitenwände gebildete Schaltkammern. Die zweiten Seitenwände begrenzen ein Volumen, das die Öffnungs-Lichtbögen enthält, und sind auf gegenüberliegenden Seiten der den Käfig umfassenden Käfig-Baugruppe und von dieser jeweils durch einen Spalt getrennt angeordnet.In this case, switching chambers formed by insulating second side walls belong to the switching structure. The second side walls define a volume containing the aperture arcs and are disposed on opposite sides of the cage assembly comprising the cage and separated therefrom by a gap.

Eine vorteilhafte Weiterbildung der Erfindung besteht, wenn in den Spalt jeweils ein erster Steg aus Isolierstoff formschlüssig eingreift, um etwaige schädliche thermische Belastungen durch die Öffnungs-Lichtbögen zu vermeiden.An advantageous development of the invention is when in the gap in each case a first web of insulating positively engages in order to avoid any harmful thermal stresses through the opening arcs.

Weiterhin ist es vorteilhaft, wenn der erste Steg Bestandteil eines Unterteils des Schaltgeräts ist, in dem die Käfig-Baugruppe mit dem Käfig angeordnet ist.Furthermore, it is advantageous if the first web is part of a lower part of the switching device, in which the cage assembly is arranged with the cage.

Sind die beiden ersten Seitenwände auf der von der Bodenwand abgewandten Seite durch mindestens einen zweiten Steg verbunden, so wird hierdurch mindestens einer der Freiräume für die Kontaktbrücke begrenzt. Hierdurch ist z.B. ein Anschlag für die Kontaktbrücke gegeben. Außerdem wird die Käfig-Baugruppe mit dem Käfig hierdurch stabilisiert.If the two first side walls are connected on the side facing away from the bottom wall by at least one second web, thereby at least one of the free spaces for the contact bridge is limited. This is e.g. given a stop for the contact bridge. In addition, the cage assembly with the cage is thereby stabilized.

Ein weiterer Vorteil besteht, wenn die beiden zweiten Seitenwände einstückig und U-förmig miteinander verbunden sind.Another advantage is when the two second side walls are integrally connected to each other and U-shaped.

Um ein Zusammenfallen der beiden zweiten Seitenwände zu vermeiden, sind diese an der von ihrer Verbindung abgewandten Seite durch Abstandsmittel fixiert. Dabei sind die Abstandsmittel nicht Bestandteil der zweiten Seitenwände.In order to avoid a collapse of the two second side walls, they are fixed on the side facing away from their connection by spacer means. The spacing means are not part of the second side walls.

Die ersten und die zweiten Seitenwände sind im Hinblick auf eine einfache Fertigung Bestandteile eines ursprünglich einstückigen Formteils aus Isolierstoff.The first and the second side walls are components of an originally one-piece molded part made of insulating material with a view to simple production.

Zur Beeinflussung der Öffnungs-Lichtbögen sind die zweiten Seitenwände von Löschblechen umgeben. Vorteilhafterweise ist zur Beeinflussung des Öffnungs-Lichtbogens mindestens ein Blasblech je Schaltstelle vorgesehen.To influence the opening arcs, the second side walls are surrounded by quenching plates. Advantageously, at least one blower plate per switching point is provided for influencing the opening arc.

Eine weitere vorteilhafte Ausführung besteht, wenn die ersten Seitenwände den Anschlag für den Schieber aufweisen.A further advantageous embodiment is when the first side walls have the stop for the slider.

Der Schieber ist auf einfache Weise mit den ersten Seitenwänden verrastbar.The slider can be locked in a simple manner with the first side walls.

Gemäß einer weiteren vorteilhaften Ausbildung weist der Schieber Rastelemente auf, die in längs zur Bewegungsrichtung des Schiebers ausgebildete Schlitze eingreifen. Dies bedeutet, dass zwischen dem Schieber und den ersten Seitenwänden eine lose Rastverbindung besteht, die die Verschiebung des Schiebers beim Schaltvorgang ermöglicht.According to a further advantageous embodiment, the slider on locking elements which engage in longitudinally formed to the direction of movement of the slider slots. This means that there is a loose locking connection between the slider and the first side walls, which allows the displacement of the slider during the switching operation.

Die weitere Aufgabe betreffend die Herstellung des erfindungsgemäßen Schaltgeräts wird durch die Merkmale nach Anspruch 15 gelöst.The further object concerning the manufacture of the switching device according to the invention is achieved by the features of claim 15.

Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand einer Zeichnung näher erläutert. Es zeigen:

FIG 1
eine Explosionsdarstellung einer Schaltstruktur gemäß dem Stand der Technik,
FIG 2
eine montierte Schaltstruktur gemäß FIG 1,
FIG 3
ein Unterteil eines Schaltgeräts mit drei Schaltstrukturen,
FIG 4
ein Oberteil eines Schaltgeräts,
FIG 5
eine Explosionsdarstellung einer Schaltstruktur eines erfindungsgemäßen Schaltgeräts,
FIG 6
eine perspektivische Darstellung einer Schaltstruktur gemäß FIG 5,
FIG 7
eine Ansicht eines Unterteils mit eingelegten Schaltstrukturen,
FIG 8
eine Ansicht einer alternativen Käfig-Baugruppe,
FIG 9
eine perspektivische Ansicht eines Unterteils im Schnitt mit Oberteil und
FIG 10
eine perspektivische Ansicht einer Schaltstruktur eines erfindungsgemäßen Schaltgeräts vor Einbau in ein Unterteil.
An embodiment of the invention will be explained in more detail below with reference to a drawing. Show it:
FIG. 1
an exploded view of a switching structure according to the prior art,
FIG. 2
a mounted switching structure according to FIG. 1 .
FIG. 3
a lower part of a switching device with three switching structures,
FIG. 4
an upper part of a switching device,
FIG. 5
an exploded view of a switching structure of a switching device according to the invention,
FIG. 6
a perspective view of a switching structure according to FIG. 5 .
FIG. 7
a view of a lower part with inserted switching structures,
FIG. 8
a view of an alternative cage assembly,
FIG. 9
a perspective view of a lower part in section with upper part and
FIG. 10
a perspective view of a switching structure of a switching device according to the invention before installation in a lower part.

Das erfindungsgemäße Schaltgerät weist eine Schaltstruktur 1 auf, die eine Käfig-Baugruppe 24 und davon mit einem Spalt 27 beabstandet zwei Löschblech-Baugruppen 22 umfasst wie in FIG 6 dargestellt. Die Käfig-Baugruppe 24 hat einen aus zwei gegenüberliegenden ersten Seitenwänden 5 und einer diese einstückig verbindenden Bodenwand 6 gebildeten Käfig 21 gemäß FIG 5 und 6, in dem ein Schieber 4 verschiebbar gelagert ist. In einer Öffnung 15 des Schiebers 4 ist eine festen Kontakten zugeordnete bewegliche Kontaktbrücke 3 unter Beaufschlagung einer Kontaktdruckfeder 2 gehalten. Der Käfig 21 hat von seinem Innenraum 7 nach außen einen Durchlass 14, der ein im wesentlichen quer zur Längsausdehnung der Kontaktbrücke 3 gerichtetes Einführen derselben in den Innenraum des Käfigs 21 zur Halterung zwischen der Kontaktdruckfeder 2 und dem Schieber 4 ermöglicht. Für die Verschiebung der Kontaktbrücke 3 ist zwischen den beiden ersten Seitenwänden 5 ein Freiraum 26 vorgesehen. Zur Halterung des Schiebers 4 ist ein Anschlag 18 vorgesehen. Die Schaltstruktur 1 gemäß FIG 7 umfasst weiterhin durch isolierende zweite Seitenwände 23 gebildete Schaltkammern, in denen beim Ausschalten eines hohen Stroms ein Öffnungs-Lichtbogen entsteht. Die Löschbleche 16 haben einen Bereich mit langgestreckten Füßen, die die zweiten Seitenwände 23 umgeben und maßgeblich für die Wegwanderung des Lichtbogens von der Kontaktstelle sind. Die zweiten Seitenwände 23 bilden zusammen mit den Löschblechen 16 die Löschblech-Baugruppe 22. Auf gegenüberliegenden Seiten der Käfig-Baugruppe 24 und von dieser durch einen Spalt 27 beabstandet ist jeweils eine Löschblech-Baugruppe 22 angeordnet, die die Kontaktbrücke 3 teilweise umgibt, wie in FIG 6 dargestellt. Die ersten 5 und die zweiten 23 Seitenwände können gemäß einem besonders einfachen Herstellungsverfahren Bestandteile eines ursprünglich einstückigen Formteils aus Isolierstoff gemäß FIG 1 sein.The switching device according to the invention has a switching structure 1, which comprises a cage assembly 24 and spaced therefrom with a gap 27 two splitter assemblies 22 as in FIG. 6 shown. The cage assembly 24 has a cage 21 formed from two opposite first side walls 5 and a bottom wall 6 integrally connecting them FIGS. 5 and 6 in which a slider 4 is slidably mounted. In an opening 15 of the slider 4, a fixed contacts associated movable contact bridge 3 is held under the action of a contact pressure spring 2. The cage 21 has from its interior 7 to the outside a passage 14 which allows a substantially transverse to the longitudinal extent of the contact bridge 3 directed insertion thereof into the interior of the cage 21 for mounting between the contact pressure spring 2 and the slide 4. For the displacement of the contact bridge 3, a free space 26 is provided between the two first side walls 5. For holding the slider 4, a stop 18 is provided. The switching structure 1 according to FIG. 7 further comprises switching chambers formed by insulating second side walls 23 in which an opening arc is produced when a high current is switched off. The quenching plates 16 have an area with elongated feet that surround the second side walls 23 and are critical to the path travel of the arc from the pad. The second side walls 23 together with the quenching plates 16 form the splitter assembly 22. On opposite sides of the cage assembly 24 and spaced therefrom by a gap 27, a splitter assembly 22 is disposed in each case, which surrounds the contact bridge 3 partially, as in FIG. 6 shown. The first 5 and the second 23 side walls can according to a particularly simple manufacturing process components of an originally integral molding of insulating material according to FIG. 1 be.

Die ersten Seitenwände 5 weisen den Anschlag 18 für den Schieber 4 auf. Der Schieber 4 ist mit den ersten Seitenwänden 5 verrastbar und weist Rastelemente 12 auf, die in längs zur Bewegungsrichtung des Schiebers 4 ausgebildete Schlitze 11 eingreifen.The first side walls 5 have the stop 18 for the slide 4. The slider 4 can be latched to the first side walls 5 and has latching elements 12 which engage in slots 11 formed longitudinally to the direction of movement of the slider 4.

Die beiden ersten Seitenwände 5 sind lediglich an zwei gegenüberliegenden Längsseiten durch eine Bodenwand 6 verbunden, an der sich die Kontaktdruckfeder 2 abstützt.The two first side walls 5 are connected only at two opposite longitudinal sides by a bottom wall 6, on which the contact pressure spring 2 is supported.

FIG 7 zeigt ein üblicherweise aus Isolierstoff geformtes Unterteil 19 mit einem ersten Steg 28, der in den Spalt 27 zwischen der Käfig-Baugruppe 24 und den zweiten Seitenwänden 23 formschlüssig eingreift. FIG. 7 shows a molded usually made of insulating lower part 19 with a first web 28 which engages positively in the gap 27 between the cage assembly 24 and the second side walls 23.

Die beiden ersten Seitenwände 5 sind auf der von der Bodenwand 6 abgewandten Seite gemäß einer zweiten Ausführungsform durch einen mindestens zweiten Steg 29 miteinander verbunden. Hierdurch wird mindestens einer der Freiräume 26 zur Verschiebung der Kontaktbrücke 3 gemäß FIG 8 begrenzt. Der zweite Steg 29 kann hier zur Versteifung der Käfig-Baugruppe 24 und/oder als Anschlag für die Kontaktbrücke 3 dienen.The two first side walls 5 are connected on the side facing away from the bottom wall 6 side according to a second embodiment by an at least second web 29 with each other. As a result, at least one of the free spaces 26 according to the displacement of the contact bridge 3 FIG. 8 limited. The second web 29 can serve here for stiffening the cage assembly 24 and / or as a stop for the contact bridge 3.

Gemäß einer weiteren Ausführungsform können die beiden zweiten Seitenwände 23 einstückig und U-förmig miteinander verbunden sein wie in FIG 9 dargestellt.According to a further embodiment, the two second side walls 23 may be integrally connected to one another and U-shaped as in FIG FIG. 9 shown.

Bei der Ausführungsform gemäß FIG 9 sind die beiden zweiten Seitenwände 23 an der von ihrer Verbindung abgewandten Seite durch Abstandsmittel 30 fixiert, die zum Oberteil 20 oder zu in diesem aufgenommenen Komponenten des Schaltgeräts gehören. Die Abstandsmittel 30 sind hier als Vorsprünge an den Festkontakten ausgeführt, die im Oberteil 20 angeordnet sind.In the embodiment according to FIG. 9 are the two second side walls 23 on the side facing away from their connection side fixed by spacer means 30, which belong to the upper part 20 or received in this components of the switching device. The spacing means 30 are designed here as projections on the fixed contacts, which are arranged in the upper part 20.

Zur Beeinflussung des Öffnungs-Lichtbogens ist mindestens ein Blasblech 31 gemäß FIG 10 vorgesehen, das im vorliegenden Beispiel außen an den zweiten Seitenwänden 23 angepresst ist. Das Blasblech 31 stellt eine alternative Lösung zu den Füßen der Löschbleche 16 gemäß FIG 6 dar. Es bewirkt ebenfalls die Wegwanderung des Lichtbogens von der Kontaktstelle. FIG 10 zeigt eine Schaltstruktur eines erfindungsgemäßen Schaltgeräts vor dem Einbau in ein Unterteil, d.h. die Seitenwände 23 mit den Löschblechen 16 und Käfig-Baugruppe 24 sind getrennte Komponenten.To influence the opening arc, at least one blower plate 31 according to FIG. 10 provided, which is pressed on the outside of the second side walls 23 in the present example. The blower 31 provides an alternative solution to the feet of the quenching plates 16 according to FIG. 6 It also causes the migration of the arc from the contact point. FIG. 10 shows a switching structure of a switching device according to the invention prior to installation in a lower part, ie the side walls 23 with the quenching plates 16 and cage assembly 24 are separate components.

Die Erfindung betrifft auch ein Verfahren zur Herstellung eines erfindungsgemäßen Schaltgeräts mit der oben beschriebenen Schaltstruktur 1, was im Folgenden beschrieben wird.The invention also relates to a method for producing a switching device according to the invention with the switching structure 1 described above, which will be described below.

Zunächst wird das Formteil hergestellt, das den aus den zwei gegenüberliegenden ersten Seitenwänden 5 und der diese einstückig verbindenden Bodenwand 6 gebildeten Käfig 21 sowie die mit dem Käfig 21 einstückig verbundenen zweiten Seitenwände 23 umfasst. Durch die ersten 5, die zweiten Seitenwände 23 und die Bodenwand 6 ist ein Innenraum gebildet, der in einer zur Bodenwand 6 weitgehend parallelen Ebene nach außen einen Durchlass 14 von mindestens der Länge der Kontaktbrücke 3 aufweist.First, the molded part is produced, which comprises the cage 21 formed from the two opposite first side walls 5 and the bottom wall 6 connecting them in one piece and the second side walls 23 integrally connected to the cage 21. By the first 5, the second side walls 23 and the bottom wall 6, an interior space is formed, which has in a plane substantially parallel to the bottom wall 6 outwardly a passage 14 of at least the length of the contact bridge 3.

Anschließend werden über den Durchlass 14 in den Käfig 21 die Kontaktdruckfeder 2, die Kontaktbrücke 3 und der Schieber 4 montiert sowie an den zweiten Seitenwänden 23 die Löschbleche 16 befestigt, womit die Schaltstruktur 1 gemäß FIG 2 entsteht. Löschbleche 16 können durch Einstecken in Nuten 13 der zweiten Seitenwände 23 gemäß FIG 1 und 2 befestigt werden, um auf diese Weise eine fertig montierte Schaltstruktur 1 gemäß FIG 2 zu erhalten.Subsequently, the contact pressure spring 2, the contact bridge 3 and the slider 4 are mounted on the passage 14 in the cage 21 and attached to the second side walls 23, the quenching plates 16, whereby the switching structure 1 according to FIG. 2 arises. Extinguishing plates 16 can by inserting into grooves 13 of the second side walls 23 according to 1 and 2 be attached to in this way, a completely assembled switching structure 1 according to FIG. 2 to obtain.

Darauffolgend wird das Formteil der Schaltstruktur 1 gemäß FIG 2 jeweils an der Stelle, an der die zweiten Seitenwände 23 mit dem Käfig 21 verbunden sind, z.B. durch einen Fräs- oder Schneidvorgang aufgetrennt, wodurch sich die Käfig-Baugruppe 24 und die zwei Löschblech-Baugruppen 22 gemäß FIG 6 ergeben.Subsequently, the molded part of the switching structure 1 according to FIG. 2 each at the point at which the second side walls 23 are connected to the cage 21, for example, separated by a milling or cutting process, whereby the cage assembly 24 and the two splitter plate assemblies 22 according to FIG. 6 result.

Anschließend werden die Käfig-Baugruppe 24 sowie die abgetrennten zweiten Seitenwände 23 mit oder ohne Löschbleche 16 in das Unterteil 19 gemäß FIG 7 eingesetzt, wobei zwischen der Käfig-Baugruppe 24 und den zweiten Seitenwänden 23 jeweils ein definierter Spalt 27 gelassen wird.Subsequently, the cage assembly 24 and the separated second side walls 23 with or without quenching plates 16 in the lower part 19 according to FIG. 7 used, between the cage assembly 24 and the second side walls 23 each have a defined gap 27 is left.

Anstelle des nach oben offenen, mit dem Durchlass versehenen Käfigs 21 kann dieser alternativ mit zweiten Stegen 29 gemäß DE 69302599 T2 versehen sein.Instead of the upwardly open, provided with the passage cage 21 this can alternatively with second webs 29 according to DE 69302599 T2 be provided.

Die hierin als seitlich isolierende Flügel bezeichneten Seitenwände 23 werden nach Bestückung des Käfigs 21 mit der Kontaktdruckfeder 21, der Kontaktbrücke 3 und dem Schieber 4 abgetrennt. Die sich dabei ergebende Käfig-Baugruppe 24 sowie die abgetrennten Seitenwände 23 werden wiederum mit oder ohne Löschbleche in das Unterteil 19 des Schaltgeräts eingesetzt und dabei mit einem definierten Spalt 27 voneinander entfernt angeordnet. Die Randkonturen der Spalte 27 werden vorzugsweise durch die Fertigung vorbestimmt.The side walls 23, which are referred to as laterally insulating wings, are separated after the cage 21 has been fitted with the contact pressure spring 21, the contact bridge 3 and the slide 4. The resulting cage assembly 24 and the separated side walls 23 are in turn used with or without quenching plates in the lower part 19 of the switching device and thereby arranged away from each other with a defined gap 27. The edge contours of the column 27 are preferably predetermined by the production.

Claims (15)

  1. A switching device with a switching structure (1), comprising a cage assembly (24) having two opposing first sidewalls (5) and a bottom wall (6) integrally connecting the first sidewalls, with the cage assembly (24) being at least partly embodied as a cage (21) in which a slide (4) is displaceably arranged, with a moving contact bridge (3) associated with stationary contact members being held in an opening (15) of the slide (4) under pressure of a contact pressure spring (2), and wherein a clearance space (26) is provided between the pair of first sidewalls (5) for displacement of the contact bridge (3) and with a stop (18) being provided to retain the slide (4), and with switching chambers (7) formed by isolated second side walls (23) belonging to the switching structure (1), with the second side wall (23) delimiting a volume containing the opening arcs, and with the second sidewalls being arranged on opposite sides of the cage assembly (24) surrounding the cage (21), characterized in that the second sidewalls of the switching chambers are respectively arranged separated from the cage assembly (24) by a gap (27).
  2. Switching device according to claim 1, characterized in that a first web (28) of an insulating material engages with the gap (27) in each case.
  3. Switching device according to claim 2, characterized in that the first web (28) is part of a bottom part (19) in which the cage assembly (24) with the cage (21) is arranged.
  4. Switching device according to one of the above claims, characterized in that the two first sidewalls (5) are connected by at least one second web (29) on a side facing away from the bottom wall (6), whereby one or more of the clearance spaces for the contact bridge (3) is delimited (5).
  5. Switching device according to claim 4, characterized in that the second web (29) acts as a limit stop for the contact bridge (3).
  6. Switching device according to one of the above claims, characterized in that the two second sidewalls (23) are integrally interconnected in a U shape.
  7. Switching device according to claim 6, characterized in that the two second sidewalls (23) are fixed by spacer means (30) on a side facing away from their connection, with the spacer means (30) not being parts of the second sidewalls (23).
  8. Switching device according to one of the above claims, characterized in that the first (5) and the second sidewalls (23) are parts of an integrally moulded part comprised of an insulating material.
  9. Switching device according to one of the above claims, characterized in that the second sidewalls (23) are surrounded by arc splitter plates (16).
  10. Switching device according to one of the above claims, characterized in that at least one blow plate (31) is provided for each switching point to influence the opening arc.
  11. Switching device according to claim 1, characterized in that the first sidewalls (5) feature the stop (18) for the slide (4).
  12. Switching device according to one of the above claims, characterized in that the slide (4) is able to be latched to the first sidewalls (5).
  13. Switching device according to one of the previous claims, characterized in that the slide (4) features latching elements (12), which engage with slots (11) that are formed longitudinally to a movement direction of the slide (4).
  14. Switching device according to one of the previous claims, characterized in that the two first sidewalls (5) are only connected on two opposing long sides by the bottom wall (6) against which the contact pressure spring (2) is supported.
  15. A method for production of a switching device with a switching structure (1) comprising a cage assembly (24), having two opposite first sidewalls (5) and a bottom wall (6) integrally connecting the first sidewalls, with the cage assembly (24) being at least partly configured as a cage (21) in which a slide (4) is displaceably arranged, with a moving contact bridge (3) associated with stationary contact members being held in an opening (15) of the slide (4) under the pressure of a contact pressure spring (2), with a clearance (26) being provided between the two first sidewalls (5) for the displacement of the contact bridge (3) and with a limit stop (18) being provided to retain the slide (4) and with switching structure (1) having arcing chambers (7) formed by insulating second sidewalls (23), with the second sidewalls (23) delimiting a volume which contains the opening arcs and the second sidewalls (23) being arranged separately on opposite sides of the cage assembly (24) surrounding the cage (21) and being separated from this in each case by a gap (27), characterized by the following steps:
    a) First, the moulded part is produced, which includes the cage (21) formed by the two opposite first sidewalls (5) and the bottom wall (6) integrally connecting the same and the second sidewalls (23) integrally connected to the cage (21), followed by steps b and c, with the sequence of these steps being interchangeable,
    b) The moulded part is separated at the point where the second sidewalls (23) are connected to the cage (21), e.g., in a milling or cutting process, such that the cage assembly (24) and the two separated second sidewalls (23) are obtained, and
    c) The cage assembly (24) as well as the separated second sidewalls (23) with or without arc splitter plates(16) are placed into the bottom section (19), with a defined gap (27) left between the cage assembly (24) and the second sidewalls (23)) in each case.
EP04797530A 2003-11-28 2004-11-02 Switching device Active EP1687835B1 (en)

Priority Applications (1)

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PL04797530T PL1687835T3 (en) 2003-11-28 2004-11-02 Switching device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356271A DE10356271B4 (en) 2003-11-28 2003-11-28 switchgear
PCT/EP2004/012387 WO2005062333A1 (en) 2003-11-28 2004-11-02 Switching device

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EP1687835A1 EP1687835A1 (en) 2006-08-09
EP1687835B1 true EP1687835B1 (en) 2008-03-26

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US (3) US7285742B2 (en)
EP (1) EP1687835B1 (en)
JP (1) JP4309431B2 (en)
KR (1) KR100856594B1 (en)
CN (1) CN1886816B (en)
AT (1) ATE390703T1 (en)
DE (2) DE10356271B4 (en)
ES (1) ES2302048T3 (en)
HK (1) HK1095202A1 (en)
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US20060266738A1 (en) 2006-11-30
ES2302048T3 (en) 2008-07-01
US7371987B2 (en) 2008-05-13
CN1886816A (en) 2006-12-27
US7285742B2 (en) 2007-10-23
US20050135022A1 (en) 2005-06-23
US7748105B2 (en) 2010-07-06
PL1687835T3 (en) 2008-09-30
ATE390703T1 (en) 2008-04-15
KR100856594B1 (en) 2008-09-03
KR20060116843A (en) 2006-11-15
JP2007512664A (en) 2007-05-17
EP1687835A1 (en) 2006-08-09
CN1886816B (en) 2012-01-18
WO2005062333A1 (en) 2005-07-07
DE502004006689D1 (en) 2008-05-08
US20070187365A1 (en) 2007-08-16
DE10356271A1 (en) 2005-06-23
HK1095202A1 (en) 2007-04-27
JP4309431B2 (en) 2009-08-05
DE10356271B4 (en) 2008-02-14

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