EP2774158A1 - Switch for multi-pole direct-current operation - Google Patents

Switch for multi-pole direct-current operation

Info

Publication number
EP2774158A1
EP2774158A1 EP12780747.7A EP12780747A EP2774158A1 EP 2774158 A1 EP2774158 A1 EP 2774158A1 EP 12780747 A EP12780747 A EP 12780747A EP 2774158 A1 EP2774158 A1 EP 2774158A1
Authority
EP
European Patent Office
Prior art keywords
switching
bridge
switch according
chambers
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
EP12780747.7A
Other languages
German (de)
French (fr)
Other versions
EP2774158B1 (en
Inventor
Karsten Gerving
Volker Lang
Johannes Meissner
Ralf Thar
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.)
Eaton Electrical IP GmbH and Co KG
Original Assignee
Eaton Electrical IP GmbH and Co KG
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 Eaton Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Priority to PL12780747T priority Critical patent/PL2774158T3/en
Priority to EP12780747.7A priority patent/EP2774158B1/en
Publication of EP2774158A1 publication Critical patent/EP2774158A1/en
Application granted granted Critical
Publication of EP2774158B1 publication Critical patent/EP2774158B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the invention relates to a multi-pole switch which is suitable in particular for a multirole switch
  • Electrical switches are components in a circuit that establish or disconnect an electrically conductive connection by means of internal, electrically conductive contacts. With a live connection to be cut, current flows through the contacts until they are separated. When an inductive circuit is disconnected by a switch, the current flow does not reduce immediately to zero, so that an arc can form between the contacts.
  • the arc is a gas discharge by a per se non-conductive medium, such as air.
  • Switching chamber leads in the switch and thus reduces the life of the switch.
  • two-pole or multi-pole switches with two or more switching chambers correspondingly higher amounts of heat are released by arcing than in single-pole switches. Therefore, there is a particular need to quickly extinguish the arcs.
  • multi-pole switch If a multi-pole switch is to be equipped accordingly, especially in a non-polarity extinguishing behavior, additional switching chambers for each pole are necessary. As a result, multipole switches can reach a size for which insufficient space, in particular not sufficient depth, is available in common control cabinets, for example.
  • An object of the invention is to provide a multi-pole switch available whose space requirements, at least in depth, based on the installation situation in a cabinet, compared to single-ended switches is not or not much higher.
  • the switch according to the invention is for a multi-pole operation, in particular
  • each pole is a partial switching chamber is provided.
  • the switching chamber has a movable switching bridge extending through both partial switch chambers, wherein in each case one bridge switch piece is provided for each partial switch chamber and the bridge switch pieces are arranged along one
  • Main extension direction of the switching bridge are spaced from each other.
  • the main extension direction of the switching bridge is aligned according to the invention substantially perpendicular to a movement axis of the switching bridge.
  • the bridge switching pieces are advantageously arranged substantially in a plane next to each other.
  • the main extension direction of the switching bridge is that direction in which the switching bridge has its greatest extent, namely in the plane of the bridge contact pieces.
  • Each of the sub-switching chambers accordingly has two fixed contact pieces, which in a plane parallel to the plane of
  • Bridge switching pieces are arranged and which by the perpendicular to the Main extension direction of the bridge bridge movable bridge switching pieces synchronized electrically connected and disconnected.
  • the sub-switching chambers are arranged and formed mirror-symmetrical in particular in one plane. Against the action of arcs of the pole of the other part switching chamber, the sub-switching chambers are preferably electrically sealed off.
  • each partial switching chamber has two switching pieces with a first contact region per switching piece, wherein the switch bridge movable and electrically conductive bridge switching pieces each have two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating the have first and second contact areas.
  • the switch bridge movable and electrically conductive bridge switching pieces each have two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating the have first and second contact areas.
  • Bridge switching pieces extend substantially perpendicular to the main extension direction of the switching bridge, wherein the fixed contact pieces are parallel to the
  • At least one of the partial switching chambers at least two extinguishing devices are provided for extinguishing arcs, which can occur when the first and second contact regions are disconnected.
  • at least two extinguishing devices are provided for extinguishing arcs, which can occur when the first and second contact regions are disconnected.
  • Arc conductors extend from the first contact areas and second arc conductors extend from the second contact areas toward the extinguishing devices.
  • Arc conductor of the second arc conductors preferably increases in the direction of the extinguishing devices, whereby the respective arc on the way to
  • Extinguishing device is advantageously stretched.
  • a permanent magnet arrangement is provided to form in the areas between the first and second contact areas and the respective extinguishing devices a substantially homogeneous magnetic field for exerting a magnetic force on the arcs, so that at least one of the arcs, regardless of the current direction in the arc in the direction of one of Extinguishing devices is driven.
  • the permanent magnet arrangement has at least two plate-shaped magnets, wherein the magnets are arranged on longitudinal sides of the partial switching chambers, in each case adjacent to the contact areas. According to a further preferred embodiment, it is provided that the
  • Permanent magnet arrangement comprises two parallel pole plates, wherein the pole plates are interconnected by one or more permanent magnets to a substantially U-shaped profile, whereby a particularly homogeneous magnetic field of high magnetic field strength can be built.
  • FIGS. 1 and 2 an embodiment of the switch according to the invention in various representations;
  • Figure 3 shows a further embodiment of the switch according to the invention;
  • Figure 4 is a switching bridge for one of the embodiments of the switch according to the invention
  • Figure 5 shows a magnet arrangement for one of the embodiments of the switch according to the invention.
  • Arc extinguishing device 61 is moved.
  • the contact and erase arrangements of both poles are housed here in a single switching chamber.
  • the advantage of such a switch consists on the one hand in a relatively simple, easy to assemble construction, on the other hand in a switch of comparatively small installation depth. The embodiment will be described below with reference to FIGS. 1 and 2.
  • the switching chamber of the two-pole switch is subdivided in its main extension direction into two equally partitioned partial switching chambers 1, 2 or segments 1, 2 which are sealed off from one another and in which the contact and extinguishing arrangements of each pole are accommodated.
  • a channel 3 which surrounds the switching bridge 35, in each of which a bridge bridge contact piece 30 is installed.
  • the two bridge switching pieces 30 have the same installation depth and are arranged in a region of the center of the respective sub-switching chamber 1, 2, wherein the bridge switching pieces 30 extend in a direction which is rotated by 90 degrees against the main extension direction of the switching chamber.
  • the bridge switching pieces 30 have second contact areas 31 or contact pads 31 for making contact with first contact areas 11 or fixed contacts 11. From the second contact portions 31 at right angles outgoing skid-shaped legs each extend in the direction of a connecting axis of two opposing extinguishing devices 61 and are angled in such a way that second arc conductors 32 are formed whose dropouts in the off state of the switch respectively in the direction of an upper edge 65 of the extinguishing devices 61 show.
  • the fixed contact pieces 20a, 20b of the partial switching chamber 2 enter on the short side or head side of the switching chamber in this. In the area of the fixed contacts 11, the contact pieces 20a, 20b are angled or cranked, whereby the first
  • Arc conductor 12 are provided.
  • the fixed contacts 11 are in one
  • Installation depth arranged, which corresponds approximately to the center of the extinguishing chambers 61. at
  • the part switching chamber 1 with the switching pieces 10 a, 10 b is carried out analogously to the previously described part switching chamber 2.
  • the extinguishing devices 61 are executed in the illustrated embodiment as so-called Deion chambers, which consist of a stack arrangement of mutually electrically insulated sheets, each with an air gap between two adjacent sheets.
  • Deion chambers consist of a stack arrangement of mutually electrically insulated sheets, each with an air gap between two adjacent sheets.
  • Each contact pair consisting of a first contact region 11 and a second contact region 31, two of the extinguishing chambers 61 are assigned, which in the
  • Main extension direction of the switch are housed in oppositely arranged niches.
  • Each pole has, in a double-break contact arrangement, two pairs of opposite extinguishing chambers 61 symmetrical to both sides of the
  • Switching bridge 35 are arranged.
  • the described contact and erase arrangements of both poles are preferably axisymmetric to both sides of a central axis in FIG.
  • the structure of the magnetic blowing field is realized in the illustrated embodiment according to Figures 1 and 2 via a permanent magnetic arrangement.
  • This consists of two plate-shaped magnets 51 for each pole, which are arranged on the longer switching chamber wall in the region of the contact pairs 11, 31.
  • the plate-shaped magnets Be arranged outside of the chamber wall or inside, for example, in accordance with insulating pockets of the inside niche walls.
  • a switching arc arising when the contacts are opened is moved in the direction of one or the other of the two opposing extinguishing devices 61, due to the so-called magnetic blowing effect, caused by the Lorentz force, depending on the current direction.
  • FIG. 3 schematically shows a further embodiment of the switch according to the invention, which differs from the embodiment of FIGS. 1 and 2 by an alternative extinguishing arrangement without deion chambers.
  • the extinguishing arrangement is given by a niche arrangement with walls of insulating material, preferably made of thermosetting plastic or ceramic, wherein the individual niches spatially
  • FIG. 4 shows a switching bridge 35 of a further embodiment of the invention
  • Switch according to the invention which differs from the embodiment of Figures 1 and 2 by an alternative permanent magnet arrangement. Achieving higher magnetic field strengths in the region of the switching contacts can be achieved by adding a further permanent magnet 51c, preferably by integration into the
  • FIG. 5 shows a further variant of a permanent magnet arrangement for a further embodiment of the switch according to the invention.
  • magnetic blast field of great homogeneity can be achieved by an arrangement of two plane-parallel plates 55 of magnetically good conductive material, preferably of soft magnetic iron, form, which are connected by one or more permanent magnets 51 in such a way that they form an approximately U-shaped profile.
  • the polarity of the magnet 51 is indicated by the data north (N) and south (S).
  • the distance between the parallel pole plates 55 is in this case dimensioned so that they extend in close proximity along the lateral outer walls of the quenching chamber.
  • Recesses 58 are provided for the passage of bridge switching pieces 30.
  • two axisymmetric arranged permanent magnet arrangements of the type shown are provided.
  • Shielding plate 56 serves to magnetically shield the switch from the permanent magnet 51.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

Switch for multi-pole operation, more particularly direct-current operation, having a switching chamber, wherein a switching compartment (1, 2) is provided for each pole. The switching chamber has a moving switching bridge (35) running through both switching compartments (1, 2), wherein the switching bridge (35) has a bridge contact (30) for each switching compartment (1, 2).

Description

SCHALTER FÜR EINEN MEHRPOLIGEN GLEICHSTROMBETRIEB Die Erfindung betrifft einen mehrpoligen Schalter, der insbesondere für einen  The invention relates to a multi-pole switch which is suitable in particular for a multirole switch
Gleichstrombetrieb vorgesehen ist, mit einer Teilschaltkammer je Pol. DC operation is provided, with a partial switching chamber per pole.
Elektrische Schalter sind Komponenten in einem Stromkreis, die mittels interner, elektrisch leitender Kontakte eine elektrisch leitende Verbindung herstellen oder trennen. Bei einer zu trennenden, stromführenden Verbindung fließt Strom durch die Kontakte, bis diese voreinander getrennt werden. Wenn ein induktiver Stromkreis durch einen Schalter getrennt wird, reduziert sich der Stromfluss nicht unmittelbar auf Null, so dass es zur Bildung eines Lichtbogens zwischen den Kontakten kommen kann. Der Lichtbogen ist eine Gasentladung durch ein an sich nichtleitendes Medium, wie beispielsweise Luft. In Schaltern mit Electrical switches are components in a circuit that establish or disconnect an electrically conductive connection by means of internal, electrically conductive contacts. With a live connection to be cut, current flows through the contacts until they are separated. When an inductive circuit is disconnected by a switch, the current flow does not reduce immediately to zero, so that an arc can form between the contacts. The arc is a gas discharge by a per se non-conductive medium, such as air. In counters with
Wechselstrombetrieb (AC) löschen Lichtbögen in der Regel beim Nulldurchgang des AC operation (ARC) usually extinguishes arcs at the zero crossing of the
Wechselstroms. Da ein solcher Nulldurchgang des Stroms in Schaltern mit Alternating current. Since such a zero crossing of the current in switches with
Gleichstrombetrieb (DC) fehlt, können beim Trennen der Kontakte stabile Lichtbögen entstehen. Sofern der Stromkreis bei ausreichender Stromstärke und Spannung betrieben wird, beispielsweise bei mehr als etwa ein Ampere und mehr als 50 Volt, verlischt der Lichtbogen nicht selbsttätig. Aus diesem Grund sind bei derartigen Schaltern Löschkammern bekannt, die zum Löschen des Lichtbogens dienen. Die Zeitspanne, während der der Lichtbogen brennt, soll so kurz wie möglich gehalten werden, da der Lichtbogen eine große Wärmemenge freisetzt, die zum Abbrennen der Kontakte und/oder zur thermischen Belastung der DC operation is missing, stable arcing can occur when the contacts are disconnected. If the circuit is operated with sufficient current and voltage, for example, more than about one ampere and more than 50 volts, the arc does not automatically go out. For this reason, in such switches extinguishing chambers are known which serve to extinguish the arc. The period during which the arc burns, should be kept as short as possible, since the arc releases a large amount of heat, which is used to burn off the contacts and / or the thermal load of the
Schaltkammer im Schalter führt und somit die Lebensdauer des Schalters verringert. Bei zwei- oder mehrpoligen Schaltern mit zwei oder mehr Schaltkammern werden entsprechend höhere Wärmemengen durch Lichtbögen freigesetzt als bei einpoligen Schaltern. Hier besteht daher besonderer Bedarf, die Lichtbögen schnell zu löschen. Switching chamber leads in the switch and thus reduces the life of the switch. In two-pole or multi-pole switches with two or more switching chambers correspondingly higher amounts of heat are released by arcing than in single-pole switches. Therefore, there is a particular need to quickly extinguish the arcs.
Es ist weiterhin bekannt, die Löschung des Lichtbogens durch die Verwendung eines magnetischen Felds zu beschleunigen, das so gepolt ist, dass es eine treibende Kraft auf den Lichtbogen in Richtung der Löschkammern ausübt. Zur Erzeugung eines starken Magnetfelds werden in der Regel Permanentmagneten verwendet. Die treibende Kraft des magnetischen Felds in Richtung der Löschkammern ist nur bei einer bestimmten Stromflussrichtung gegeben. Polungsbedingte Einbaufehler von Schaltern werden durch Schalter für beide Stromrichtungen vermieden, die ein von der jeweiligen Polung unabhängiges Löschverhalten für Lichtbögen aufweisen. Ein solcher Schalter ist beispielsweise in der Druckschrift EP 2 061 053 A2 beschrieben. It is also known to accelerate the extinction of the arc by the use of a magnetic field that is poled so that it exerts a driving force on the arc in the direction of the quenching chambers. To generate a strong magnetic field usually permanent magnets are used. The driving force of the magnetic field in the direction of the quenching chambers is only at a certain current flow direction given. Polarity-related installation errors of switches are avoided by switches for both current directions, which have an independent of the respective polarity erasing behavior for arcs. Such a switch is described for example in the publication EP 2 061 053 A2.
Wenn ein mehrpoliger Schalter entsprechend ausgerüstet werden soll, insbesondere bei einem von der Polung unabhängigen Löschverhalten, sind zusätzliche Schaltkammern für jeden Pol notwendig. Mehrpolige Schalter können dadurch eine Größe erreichen, für die beispielsweise in gängigen Schaltschränken nicht ausreichend Bauraum, insbesondere nicht ausreichend Tiefe zur Verfügung steht. If a multi-pole switch is to be equipped accordingly, especially in a non-polarity extinguishing behavior, additional switching chambers for each pole are necessary. As a result, multipole switches can reach a size for which insufficient space, in particular not sufficient depth, is available in common control cabinets, for example.
Eine Aufgabe der Erfindung besteht darin, einen mehrpoligen Schalter zur Verfügung zu stellen, dessen Bauraumbedarf zumindest in der Tiefe, bezogen auf die Einbausituation in einem Schaltschrank, gegenüber einpoligen Schaltern nicht oder nicht wesentlich höher ist. An object of the invention is to provide a multi-pole switch available whose space requirements, at least in depth, based on the installation situation in a cabinet, compared to single-ended switches is not or not much higher.
Die Aufgabe wird durch den Schalter gemäß Patentanspruch 1 gelöst. In den Unteransprüchen sind bevorzugte Ausführungsformen und vorteilhafte Weiterbildungen angegeben. The object is achieved by the switch according to claim 1. In the dependent claims preferred embodiments and advantageous developments are given.
Der erfindungsgemäße Schalter ist für einen mehrpoligen Betrieb, insbesondere The switch according to the invention is for a multi-pole operation, in particular
Gleichstrombetrieb, mit einer Schaltkammer vorgesehen, wobei je Pol eine Teilschaltkammer vorgesehen ist. Die Schaltkammer weist eine durch beide Teilschaltkammern verlaufende, bewegliche Schaltbrücke auf, wobei in der Schaltbrücke jeweils ein Brückenschaltstück für jede Teilschaltkammer vorgesehen ist und die Brückenschaltstücke entlang einer DC operation, provided with a switching chamber, each pole is a partial switching chamber is provided. The switching chamber has a movable switching bridge extending through both partial switch chambers, wherein in each case one bridge switch piece is provided for each partial switch chamber and the bridge switch pieces are arranged along one
Haupterstreckungsrichtung der Schaltbrücke beabstandet zueinander angeordnet sind. Die Haupterstreckungsrichtung der Schaltbrücke ist dabei erfindungsgemäß im Wesentlichen senkrecht zu einer Bewegungsachse der Schaltbrücke ausgerichtet. Bezogen auf die Main extension direction of the switching bridge are spaced from each other. The main extension direction of the switching bridge is aligned according to the invention substantially perpendicular to a movement axis of the switching bridge. Related to the
Einbautiefe in einem Schaltschrank oder einer vergleichbaren Einrichtung mit begrenzter Einbautiefe ausgedrückt, sind die Brückenschaltstücke vorteilhaft im Wesentlichen in einer Ebene nebeneinander angeordnet. Die Haupterstreckungsrichtung der Schaltbrücke ist diejenige Richtung, in der die Schaltbrücke ihre größte Ausdehnung aufweist, nämlich in der Ebene der Brückenschaltstücke. Jede der Teilschaltkammern weist dementsprechend zwei feststehende Schaltstücke auf, welche in einer Ebene parallel zu der Ebene der Installation depth expressed in a cabinet or similar device with limited installation depth, the bridge switching pieces are advantageously arranged substantially in a plane next to each other. The main extension direction of the switching bridge is that direction in which the switching bridge has its greatest extent, namely in the plane of the bridge contact pieces. Each of the sub-switching chambers accordingly has two fixed contact pieces, which in a plane parallel to the plane of
Brückenschaltstücke angeordnet sind und welche durch die senkrecht zu der Haupterstreckungsrichtung der Schaltbrücke bewegbaren Brückenschaltstücke synchronisiert elektrisch leitend verbunden und getrennt werden. Bridge switching pieces are arranged and which by the perpendicular to the Main extension direction of the bridge bridge movable bridge switching pieces synchronized electrically connected and disconnected.
Die Teilschaltkammern sind insbesondere in einer Ebene spiegelsymmetrisch zueinander angeordnet und ausgebildet. Gegen das Einwirken von Lichtbögen des Pols der jeweils anderen Teilschaltkammer sind die Teilschaltkammern bevorzugt elektrisch abgeschottet. The sub-switching chambers are arranged and formed mirror-symmetrical in particular in one plane. Against the action of arcs of the pole of the other part switching chamber, the sub-switching chambers are preferably electrically sealed off.
Gemäß einer bevorzugten Ausführungsform ist vorgesehen, dass jede Teilschaltkammer zwei Schaltstücke mit einem ersten Kontaktbereich je Schaltstück aufweist, wobei die mit der Schaltbrücke bewegbaren und elektrisch leitfähigen Brückenschaltstücke jeweils zwei zweite Kontaktbereiche zur Herstellung einer elektrisch leitenden Verbindung zwischen den ersten und zweiten Kontaktbereichen und zum Trennen der ersten und zweiten Kontaktbereiche aufweisen. Dadurch ergibt sich ein mehrpoliger Schalter mit Doppelunterbrechung je Pol. Alternativ könnte auch ein Kontaktpaar aus erstem und zweitem Kontaktbereich je Pol untrennbar, beispielsweise durch eine Litze, verbunden sein, so dass eine According to a preferred embodiment, it is provided that each partial switching chamber has two switching pieces with a first contact region per switching piece, wherein the switch bridge movable and electrically conductive bridge switching pieces each have two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating the have first and second contact areas. This results in a multi-pole switch with double interruption per pole. Alternatively, a contact pair of first and second contact area per pole could be inseparable, for example, connected by a stranded wire, so that a
Einfachunterbrechung realisiert werden kann. Simple interruption can be realized.
Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass die According to a further preferred embodiment, it is provided that the
Brückenschaltstücke sich im Wesentlichen rechtwinklig zu der Haupterstreckungsrichtung der Schaltbrücke erstrecken, wobei die feststehenden Schaltstücke sich parallel zu der Bridge switching pieces extend substantially perpendicular to the main extension direction of the switching bridge, wherein the fixed contact pieces are parallel to the
Haupterstreckungsrichtung der Schaltbrücke erstrecken. Main extension direction of the switching bridge extend.
Für mindestens eine der Teilschaltkammern sind mindestens zwei Löschvorrichtungen zum Löschen von Lichtbögen, welche beim Trennen der ersten und zweiten Kontaktbereiche auftreten können, vorgesehen. Um einen polaritätsunabhängigen Gleichstrombetrieb zu gewährleisten, ist vorgesehen, dass für mindestens eine der Teilschaltkammern vier For at least one of the partial switching chambers, at least two extinguishing devices are provided for extinguishing arcs, which can occur when the first and second contact regions are disconnected. In order to ensure a polarity-independent DC operation, it is provided that for at least one of the partial switching chambers four
Löschvorrichtungen zum polaritätsunabhängigen Löschen von Lichtbögen, welche beim Trennen der ersten und zweiten Kontaktbereiche auftreten können, vorgesehen sind. Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass erste Extinguishing devices for polarity-independent deletion of arcs, which may occur when separating the first and second contact areas, are provided. According to a further preferred embodiment, it is provided that the first
Lichtbogenleiter sich von den ersten Kontaktbereichen und zweite Lichtbogenleiter sich von den zweiten Kontaktbereichen aus in Richtung zu den Löschvorrichtungen erstrecken.  Arc conductors extend from the first contact areas and second arc conductors extend from the second contact areas toward the extinguishing devices.
Dadurch wird vorteilhaft verhindert, dass ein Lichtbogen sich entlang der Brückenschaltstücke in Richtung der Schaltbrücke bewegt. Ein Abstand der ersten This advantageously prevents an arc from occurring along the Bridge switching pieces moved in the direction of the switching bridge. A distance of the first
Lichtbogenleiter von den zweiten Lichtbogenleitern vergrößert sich vorzugsweise in Richtung der Löschvorrichtungen, wodurch der jeweilige Lichtbogen auf dem Weg zur Arc conductor of the second arc conductors preferably increases in the direction of the extinguishing devices, whereby the respective arc on the way to
Löschvorrichtung vorteilhaft gestreckt wird. Extinguishing device is advantageously stretched.
Vorzugsweise ist eine Permanentmagnetanordnung vorgesehen, um in den Bereichen zwischen den ersten und zweiten Kontaktbereichen und den jeweiligen Löschvorrichtungen ein weitgehend homogenes Magnetfeld zur Ausübung einer magnetischen Kraft auf die Lichtbögen auszubilden, so dass mindestens einer der Lichtbögen unabhängig von der Stromrichtung im Lichtbogen in Richtung einer der Löschvorrichtungen getrieben wird. Die Permanentmagnetanordnung weist mindestens zwei plattenförmige Magnete auf, wobei die Magnete an Längsseiten der Teilschaltkammern, jeweils benachbart zu den Kontaktbereichen, angeordnet sind. Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass die Preferably, a permanent magnet arrangement is provided to form in the areas between the first and second contact areas and the respective extinguishing devices a substantially homogeneous magnetic field for exerting a magnetic force on the arcs, so that at least one of the arcs, regardless of the current direction in the arc in the direction of one of Extinguishing devices is driven. The permanent magnet arrangement has at least two plate-shaped magnets, wherein the magnets are arranged on longitudinal sides of the partial switching chambers, in each case adjacent to the contact areas. According to a further preferred embodiment, it is provided that the
Permanentmagnetanordnung zwei parallele Polplatten aufweist, wobei die Polplatten miteinander durch einen oder mehrere Permanentmagnete zu einem im Wesentlichen U- förmigen Profil verbunden sind, wodurch sich ein besonders homogenes Magnetfeld von hoher Magnetfeldstärke aufbauen lässt.  Permanent magnet arrangement comprises two parallel pole plates, wherein the pole plates are interconnected by one or more permanent magnets to a substantially U-shaped profile, whereby a particularly homogeneous magnetic field of high magnetic field strength can be built.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels mit Bezug auf die Zeichnungen näher erläutert. Die Ausführungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Es zeigen The invention will be explained in more detail with reference to an embodiment with reference to the drawings. The embodiments are merely exemplary and do not limit the general inventive concept. Show it
Figuren 1 und 2 eine Ausführungsform des erfindungsgemäßen Schalters in verschiedenen Darstellungen; Figur 3 eine weitere Ausführungsform des erfindungsgemäßen Schalters; Figures 1 and 2 an embodiment of the switch according to the invention in various representations; Figure 3 shows a further embodiment of the switch according to the invention;
Figur 4 eine Schaltbrücke für eine der Ausführungsformen des erfindungsgemäßen Schalters; Figur 5 eine Magnetanordnung für eine der Ausführungsformen des erfindungsgemäßen Schalters. Figure 4 is a switching bridge for one of the embodiments of the switch according to the invention; Figure 5 shows a magnet arrangement for one of the embodiments of the switch according to the invention.
Die erfindungsgemäße Ausführungsform gemäß der Figuren 1 und 2 zeigt einen mehrpoligen, von der Stromrichtung unabhängiger Kompaktschalter mit effizientem Löschverhalten. The embodiment of the invention according to Figures 1 and 2 shows a multi-pole, independent of the current direction compact switch with efficient erase behavior.
Hierbei ist für jeden Pol ein doppelunterbrechendes Kontaktsystem realisiert, bei dem jeder der beim Öffnen der Kontakte entstehenden Schaltlichtbögen unabhängig von der In this case, a double-break contact system is realized for each pole, in which each of the switching arcs resulting from the opening of the contacts regardless of the
Stromrichtung mit Hilfe permanentmagnetischen Blasfelder immer in Richtung einer Current direction with the help of permanent magnetic blower fields always in the direction of a
Lichtbogenlöschvorrichtung 61 bewegt wird. Die Kontakt- und Löschanordnungen beider Pole sind hierbei in einer einzigen Schaltkammer untergebracht. Der Vorteil eines solchen Schalters besteht zum einen in einem relativ einfachen, montagefreundlichen Aufbau, zum anderen in einem Schalter von vergleichsweise geringen Einbautiefe. Die Ausführungsform wird nachfolgen mit Bezug auf die Figuren 1 und 2 beschrieben. Arc extinguishing device 61 is moved. The contact and erase arrangements of both poles are housed here in a single switching chamber. The advantage of such a switch consists on the one hand in a relatively simple, easy to assemble construction, on the other hand in a switch of comparatively small installation depth. The embodiment will be described below with reference to FIGS. 1 and 2.
Die Schaltkammer des zweipoligen Schalters ist in ihrer Haupterstreckungsrichtung in zwei gegeneinander abgeschottete gleichgroße Teilschaltkammern 1 , 2 oder Segmente 1 , 2 unterteilt, in denen die Kontakt- und Löschanordnungen jeweils eines Pols untergebracht sind. Als einzige räumliche Verbindung zwischen den beiden Schaltkammerhälften 1, 2 verläuft mittig in der Haupterstreckungsrichtung der Schaltkammer ein Kanal 3, der die Schaltbrücke 35 umgibt, in die für jeden Pol jeweils ein Brückenschaltstück 30 eingebaut ist. Die beiden Brückenschaltstücke 30 weisen die gleiche Einbautiefe auf und sind in einem Bereich der Mitte der jeweiligen Teilschaltkammer 1, 2 angeordnet, wobei die Brückenschaltstücke 30 sich in einer Richtung erstrecken, die um 90 Grad gegen die Haupterstreckungsrichtung der Schaltkammer gedreht ist. Die Brückenschaltstücke 30 weisen zweite Kontaktbereiche 31 oder auch Kontaktplättchen 31 zur Herstellung des Kontakts zu ersten Kontaktbereichen 11 oder Festkontakten 11 auf. Von den zweiten Kontaktbereichen 31 rechtwinklig abgehende kufenförmige Schenkel verlaufen jeweils in Richtung einer Verbindungsachse zweier gegenüberliegender Löschvorrichtungen 61 und sind in der Weise abgewinkelt, dass dadurch zweite Lichtbogenleiter 32 gebildet sind, deren Ausfallenden im ausgeschalteten Zustand des Schalters jeweils in Richtung einer Oberkante 65 einer der Löschvorrichtungen 61 weisen. Die feststehenden Schaltstücke 20a, 20b der Teilschaltkammer 2 treten an der kurzen Seite oder Kopfseite der Schaltkammer in diese ein. Im Bereich der Festkontakte 11 sind die Schaltstücke 20a, 20b schräg abgewinkelt bzw. gekröpft ausgebildet, wodurch erste The switching chamber of the two-pole switch is subdivided in its main extension direction into two equally partitioned partial switching chambers 1, 2 or segments 1, 2 which are sealed off from one another and in which the contact and extinguishing arrangements of each pole are accommodated. As the only spatial connection between the two switching chamber halves 1, 2 extends centrally in the main extension direction of the switching chamber, a channel 3, which surrounds the switching bridge 35, in each of which a bridge bridge contact piece 30 is installed. The two bridge switching pieces 30 have the same installation depth and are arranged in a region of the center of the respective sub-switching chamber 1, 2, wherein the bridge switching pieces 30 extend in a direction which is rotated by 90 degrees against the main extension direction of the switching chamber. The bridge switching pieces 30 have second contact areas 31 or contact pads 31 for making contact with first contact areas 11 or fixed contacts 11. From the second contact portions 31 at right angles outgoing skid-shaped legs each extend in the direction of a connecting axis of two opposing extinguishing devices 61 and are angled in such a way that second arc conductors 32 are formed whose dropouts in the off state of the switch respectively in the direction of an upper edge 65 of the extinguishing devices 61 show. The fixed contact pieces 20a, 20b of the partial switching chamber 2 enter on the short side or head side of the switching chamber in this. In the area of the fixed contacts 11, the contact pieces 20a, 20b are angled or cranked, whereby the first
Lichtbogenleiter 12 zur Verfügung gestellt werden. Die Festkontakte 11 sind in einer Arc conductor 12 are provided. The fixed contacts 11 are in one
Einbautiefe angeordnet, die etwa der Mitte der Löschkammern 61 entspricht. Bei Installation depth arranged, which corresponds approximately to the center of the extinguishing chambers 61. at
geschlossenen Kontakten 11, 31 bilden die parallel angeordneten Schaltstücke 20a, 20b zusammen mit dem quer dazu verlaufenden Brückenschaltstück 30 einen U- förmigen closed contacts 11, 31 form the parallel switching pieces 20a, 20b together with the transverse thereto bridge switching piece 30 has a U-shaped
Strompfad. Durch die Geometrie der Schaltstücke 20a, 20b mit den ersten Kontaktbereichen 11 und den Brückenschaltstücken 30 mit den zweiten Kontaktbereichen 31 wird eine Current path. Due to the geometry of the switching pieces 20a, 20b with the first contact areas 11 and the bridge contact pieces 30 with the second contact areas 31 is a
Lichtbogenlaufschienenanordnung aus den ersten Lichtbogenleitern 12 und den zweitenArc runner assembly of the first arc conductors 12 and the second
Lichtbogenleitern 32 gebildet, die sich in Richtung zu den Löschkammern 61 hin aufweitet, so dass ein beim Öffnen der Kontakte, also beim Trennen der zweiten Kontaktbereiche 31 von den ersten Kontaktbereichen 11 , entstehender Schaltlichtbogen unter dem Einfluss einer magnetischen Blaswirkung schnell in Richtung einer der Löschvorrichtungen 61 bewegt wird und sich dabei kontinuierlich aufweitet. Die Teilschaltkammer 1 mit den Schaltstücken 10 a, 10b ist analog zu der zuvor beschriebenen Teilschaltkammer 2 ausgeführt. Arcing conductors 32 formed, which widens in the direction of the quenching chambers 61, so that when opening the contacts, so when separating the second contact areas 31 of the first contact areas 11, emerging switching arc under the influence of a magnetic blowing fast in the direction of one of the extinguishing devices 61 is moving and thereby continuously expanding. The part switching chamber 1 with the switching pieces 10 a, 10 b is carried out analogously to the previously described part switching chamber 2.
Die Löschvorrichtungen 61 sind in dem dargestellten Ausführungsbeispiel als sogenannte Deion-Kammern ausgeführt, die aus einer Stapelanordnung von gegeneinander elektrisch isolierten Blechen mit jeweils einem Luftspalt zwischen zwei benachbarten Blechen bestehen. Jedem Kontaktpaar, bestehend aus einem ersten Kontaktbereich 11 und einem zweiten Kontaktbereich 31, sind zwei der Löschkammern 61 zugeordnet, welche in der The extinguishing devices 61 are executed in the illustrated embodiment as so-called Deion chambers, which consist of a stack arrangement of mutually electrically insulated sheets, each with an air gap between two adjacent sheets. Each contact pair, consisting of a first contact region 11 and a second contact region 31, two of the extinguishing chambers 61 are assigned, which in the
Haupterstreckungsrichtung des Schalters in gegenüberliegend angeordneten Nischen untergebracht sind. Jeder Pol weist bei einer doppelunterbrechenden Kontaktanordnung zwei Paare gegenüberliegender Löschkammern 61, die symmetrisch zu beiden Seiten der Main extension direction of the switch are housed in oppositely arranged niches. Each pole has, in a double-break contact arrangement, two pairs of opposite extinguishing chambers 61 symmetrical to both sides of the
Schaltbrücke 35 angeordnet sind. Die beschriebenen Kontakt- und Löschanordnungen beider Pole sind vorzugsweise achsensymmetrisch zu beiden Seiten einer Mittelachse in  Switching bridge 35 are arranged. The described contact and erase arrangements of both poles are preferably axisymmetric to both sides of a central axis in FIG
Haupterstreckungsrichtung der Schaltkammer angeordnet. Der Aufbau des magnetischen Blasfelds wird bei der dargestellten Ausführungsform gemäß Figuren 1 und 2 über eine permanentmagnetische Anordnung realisiert. Diese besteht aus zwei plattenförmigen Magneten 51 für jeden Pol, die an der längeren Schaltkammerwand im Bereich der Kontaktpaare 11, 31 angeordnet sind. Dabei können die plattenförmigen Magnete 51 außen an der Kammerwand angeordnet sein oder innen, beispielsweise in entsprechend isolierenden Taschen der innenseitigen Nischenwände. Ein beim Öffnen der Kontakte entstehender Schaltlichtbogen wird auf Grund der sogenannten magnetischen Blaswirkung, hervorgerufen durch die Lorentzkraft, abhängig von der Stromrichtung in Richtung der einen oder der anderen der beiden gegenüberliegenden Löschvorrichtungen 61 bewegt. Die Main extension direction of the switching chamber arranged. The structure of the magnetic blowing field is realized in the illustrated embodiment according to Figures 1 and 2 via a permanent magnetic arrangement. This consists of two plate-shaped magnets 51 for each pole, which are arranged on the longer switching chamber wall in the region of the contact pairs 11, 31. In this case, the plate-shaped magnets Be arranged outside of the chamber wall or inside, for example, in accordance with insulating pockets of the inside niche walls. A switching arc arising when the contacts are opened is moved in the direction of one or the other of the two opposing extinguishing devices 61, due to the so-called magnetic blowing effect, caused by the Lorentz force, depending on the current direction. The
Permanentmagneten bestehen vorzugsweise entweder aus ferritischem Material oder aus einem Material mit Anteilen seltener Erden z.B. Nd-Fe-B oder Sa-Co oder aus Materialien in Form kunststoffgebundener Formteile. In der Figur 3 ist schematisch eine weitere Ausführungsform des erfmdungsgemäßenen Schalters dargestellt, der sich von der Ausführungsform der Figuren 1 und 2 durch eine alternative Löschanordnung ohne Deion- Kammern unterscheidet. Die Löschanordnung ist durch eine Nischenanordnung mit Wänden aus Isolierstoff gegeben, vorzugsweise aus duroplastischem Kunststoff oder Keramik, wobei die einzelnen Nischen räumlich Permanent magnets are preferably made of either ferritic material or of a rare earth content material, e.g. Nd-Fe-B or Sa-Co or of materials in the form of plastic-bonded molded parts. FIG. 3 schematically shows a further embodiment of the switch according to the invention, which differs from the embodiment of FIGS. 1 and 2 by an alternative extinguishing arrangement without deion chambers. The extinguishing arrangement is given by a niche arrangement with walls of insulating material, preferably made of thermosetting plastic or ceramic, wherein the individual niches spatially
voneinander hinreichend abgeschottet sind und an außenseitigen Wänden Ausblasöffnungen angeordnet sind. In dem dargestellten Ausführungsbeispiel bestehen die in der are adequately sealed off from each other and are arranged on outside walls exhaust openings. In the illustrated embodiment, in the
Haupterstreckungsrichtung der Schaltkammer verlaufenden Nischenwände 45 aus Kunststoff, während die quer dazu verlaufenden Schottwände 46 zwischen den Teilschaltkammern 1, 2 beider Pole im Hinblick auf eine hohe thermische Beständigkeit gegen Lichtbogeneinwirkung aus keramischem Material bestehen. Main extension direction of the switching chamber extending niche walls 45 made of plastic, while the transverse thereto bulkheads 46 between the sub-switching chambers 1, 2 of both poles in terms of high thermal resistance to arc action of ceramic material.
In der Figur 4 ist eine Schaltbrücke 35 einer weiteren Ausführungsform des FIG. 4 shows a switching bridge 35 of a further embodiment of the invention
erfmdungsgemäßenen Schalters dargestellt, der sich von der Ausführungsform der Figuren 1 und 2 durch eine alternative Permanentmagnetanordnung unterscheidet. Eine Erzielung höherer Magnetfeldstärken im Bereich der Schaltkontakte läßt sich durch Hinzufügen eines weiteren Permanentmagneten 51c erzielen, vorzugsweise durch Integration in die Switch according to the invention, which differs from the embodiment of Figures 1 and 2 by an alternative permanent magnet arrangement. Achieving higher magnetic field strengths in the region of the switching contacts can be achieved by adding a further permanent magnet 51c, preferably by integration into the
Schaltbrücke 35 oder auch durch Anbringung an den innenseitigen Nischenwänden für die Löschvorrichtungen. Dabei können die Zusatzmagnete 51s innen beispielsweise in Jumper 35 or by attachment to the inside niche walls for the extinguishing devices. The additional magnets 51s inside, for example, in
entsprechend isolierenden Taschen der innenseitigen Nischenwände angeordnet sein. be arranged according to insulating pockets of the inside niche walls.
In der Figur 5 ist eine weitere Variante einer Permanentmagnetanordnung für eine weitere Ausführungsform des erfmdungsgemäßenen Schalters dargestellt. Ein effizientes FIG. 5 shows a further variant of a permanent magnet arrangement for a further embodiment of the switch according to the invention. An efficient one
magnetisches Blasfeld von großer Homogenität lässt sich durch eine Anordnung aus zwei planparallelen Platten 55 aus magnetisch gut leitendem Material, vorzugsweise aus weichmagnetischem Eisen, bilden, die durch einen oder mehrere Permanentmagnete 51 in der Weise verbunden sind, dass sie ein etwa U-förmiges Profil bilden. Die Polung des Magneten 51 ist durch die Angaben Nord (N) und Süd (S) bezeichnet. Der Abstand der parallelen Polplatten 55 ist hierbei so bemessen, dass diese in unmittelbarer Nähe längs der seitlichen Außenwände der Löschkammer verlaufen. Ausnehmungen 58 sind für den Durchtritt der Brückenschaltstücke 30 vorgesehen. Je Teilschaltkammer 1, 2 sind zwei achssymmetrisch angeordnete Permanentmagnetanordnungen der dargestellten Art vorgesehen. Die magnetic blast field of great homogeneity can be achieved by an arrangement of two plane-parallel plates 55 of magnetically good conductive material, preferably of soft magnetic iron, form, which are connected by one or more permanent magnets 51 in such a way that they form an approximately U-shaped profile. The polarity of the magnet 51 is indicated by the data north (N) and south (S). The distance between the parallel pole plates 55 is in this case dimensioned so that they extend in close proximity along the lateral outer walls of the quenching chamber. Recesses 58 are provided for the passage of bridge switching pieces 30. Depending partial switching chamber 1, 2, two axisymmetric arranged permanent magnet arrangements of the type shown are provided. The
Abschirmplatte 56 dient der magnetischen Abschirmung des Schalters gegenüber dem Permanentmagneten 51. Shielding plate 56 serves to magnetically shield the switch from the permanent magnet 51.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 , 2 Teilschaltkammern 1, 2 partial switching chambers
3 Kanal  3 channel
10a, 10b Feststehende Schaltstücke der ersten Teilschaltkammer10a, 10b fixed contact pieces of the first part switching chamber
20a, 20b Feststehende Schaltstücke der zweiten Teilschaltkammer20a, 20b fixed contact pieces of the second part switching chamber
11 Erster Kontaktbereich, Festkontakt 11 First contact area, fixed contact
12 Erster Lichtbogenleiter  12 First arc conductor
30 Brückenschaltstück 30 bridge contact piece
31 Zweiter Kontaktbereich 31 Second contact area
32 Zweiter Lichtbogenleiter  32 Second arc conductor
35 Schaltbrücke  35 switching bridge
45 Nischenwände  45 niche walls
46 Schottwände  46 bulkheads
51 Magnete 51 magnets
51c Zusatzmagnet  51c additional magnet
55 Polplatten  55 pole plates
56 Abschirmplatte  56 shielding plate
57 Permanentmagnet  57 permanent magnet
58 Ausnehmung 58 recess
61 Löschvorrichtung  61 extinguishing device
65 Oberkante der Löschvorrichtung  65 upper edge of the extinguishing device

Claims

Patentansprüche claims
1. Schalter für einen zweipoligen Betrieb mit einer Schaltkammer, wobei je Pol eine 1. switch for a two-pole operation with a switching chamber, each pole a
Teilschaltkammer (1, 2) vorgesehen ist, dadurch gekennzeichnet, dass die Schaltkammer eine durch beide Teilschaltkammern (1, 2) verlaufende, bewegliche Schaltbrücke (35) aufweist, wobei in der Schaltbrücke jeweils ein Brückenkontaktstück (30) für jede Teilschaltkammer (1, 2) vorgesehen ist und die Brückenschaltstücke entlang einer Haupterstreckungsrichtung der Schaltbrücke (35) beabstandet zueinander angeordnet sind und wobei die Partial switching chamber (1, 2) is provided, characterized in that the switching chamber by a two switching chambers (1, 2) extending, movable switching bridge (35), wherein in the switching bridge in each case a bridge contact piece (30) for each part switching chamber (1, 2 ) is provided and the bridge switching pieces along a main extension direction of the switching bridge (35) are arranged spaced from each other and wherein the
Haupterstreckungsrichtung der Schaltbrücke (35) im Wesentlichen senkrecht zu einer Bewegungsachse der Schaltbrücke (35) ausgerichtet ist, wobei die Brückenschaltstücke (30) sich im Wesentlichen rechtwinklig zu der Haupterstreckungsrichtung der Schaltbrücke (35) erstrecken, wobei feststehende Schaltstücke (10a, 10b, 20a, 20b) sich parallel zu der Main extension direction of the switching bridge (35) is oriented substantially perpendicular to a movement axis of the switching bridge (35), wherein the bridge switching pieces (30) extend substantially perpendicular to the main extension direction of the switching bridge (35), wherein fixed contact pieces (10a, 10b, 20a, 20b) parallel to the
Haupterstreckungsrichtung der Schaltbrücke erstrecken. 2. Schalter nach Anspruch 1, dadurch gekennzeichnet, dass die Teilschaltkammern (1, Main extension direction of the switching bridge extend. 2. Switch according to claim 1, characterized in that the partial switching chambers (1,
2) spiegelsymmetrisch zueinander angeordnet sind. 2) are arranged mirror-symmetrically to each other.
3. Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Teilschaltkammern (1, 2) gegen das Einwirken von Lichtbögen des Pols der jeweils anderen Teilschaltkammer elektrisch abgeschottet sind. 3. Switch according to one of the preceding claims, characterized in that the sub-switching chambers (1, 2) are electrically sealed off against the action of arcs of the pole of the respective other sub-switching chamber.
4. Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede Teilschaltkammer (1, 2) zwei feststehende Schaltstücke (10a, 10b, 20a, 20b) mit einem ersten Kontaktbereich (11) je Schaltstück aufweist, wobei die mit der Schaltbrücke (35) bewegbaren und elektrisch leitfähigen Brückenschaltstücke (30) jeweils zwei zweite Kontaktbereiche (31) zur Herstellung einer elektrisch leitenden Verbindung zwischen den ersten und zweiten Kontaktbereichen (11, 31) und zum Trennen der ersten und zweiten Kontaktbereiche (11, 31) aufweist. 4. Switch according to one of the preceding claims, characterized in that each partial switching chamber (1, 2) has two fixed contact pieces (10a, 10b, 20a, 20b) with a first contact region (11) per contact piece, wherein the switching bridge (35 ) and electrically conductive bridge switching pieces (30) each have two second contact regions (31) for producing an electrically conductive connection between the first and second contact regions (11, 31) and for separating the first and second contact regions (11, 31).
5. Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass für mindestens eine der Teilschaltkammern (1, 2) mindestens zwei Löschvorrichtungen (61) zum Löschen von Lichtbögen, welche beim Trennen der ersten und zweiten Kontaktbereiche (11, 31) auftreten können, vorgesehen sind. 5. Switch according to one of the preceding claims, characterized in that for at least one of the partial switching chambers (1, 2) at least two extinguishing devices (61) for extinguishing arcing, which can occur during the separation of the first and second contact regions (11, 31) are provided.
6. Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass für mindestens eine der Teilschaltkammern (1, 2) vier Löschvorrichtungen (61) zum 6. Switch according to one of the preceding claims, characterized in that for at least one of the partial switching chambers (1, 2) four extinguishing devices (61) for
polaritätsunabhängigen Löschen von Lichtbögen, welche beim Trennen der ersten und zweiten Kontaktbereiche (11, 31) auftreten können, vorgesehen sind. polarity-independent deletion of arcs, which can occur when separating the first and second contact regions (11, 31) are provided.
7. Schalter nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass erste 7. Switch according to one of claims 5 or 6, characterized in that first
Lichtbogenleiter (12) sich von den ersten Kontaktbereichen (11) und zweite Lichtbogenleiter (32) sich von den zweiten Kontaktbereichen (31) aus in Richtung zu den Löschvorrichtungen (61, 62) erstrecken. Arc conductors (12) extend from the first contact regions (11) and second arc conductors (32) extend from the second contact regions (31) toward the quenching devices (61, 62).
8. Schalter nach Anspruch 7, dadurch gekennzeichnet, dass ein Abstand der ersten 8. Switch according to claim 7, characterized in that a distance of the first
Lichtbogenleiter (12) von den zweiten Lichtbogenleitern (32) sich in Richtung der jeweiligen Löschvorrichtungen (61) vergrößert. Arc conductor (12) of the second arc conductors (32) in the direction of the respective extinguishing devices (61) increases.
9. Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Permanentmagnetanordnung vorgesehen ist, um in den Bereichen zwischen den ersten und zweiten Kontaktbereichen (11, 31) und den jeweiligen Löschvorrichtungen (61) ein weitgehend homogenes Magnetfeld auszubilden. 9. Switch according to one of the preceding claims, characterized in that a permanent magnet arrangement is provided in order to form a substantially homogeneous magnetic field in the areas between the first and second contact regions (11, 31) and the respective extinguishing devices (61).
10. Schalter nach Anspruch 9, dadurch gekennzeichnet, dass die Permanentmagnetanordnung mindestens zwei plattenförmige Magnete (51) aufweist, wobei die Magnete (51) an 10. Switch according to claim 9, characterized in that the permanent magnet arrangement comprises at least two plate-shaped magnets (51), wherein the magnets (51) to
Längsseiten der Teilschaltkammern (1, 2), jeweils benachbart zu den Kontaktbereichen (11, 31), angeordnet sind. Longitudinal sides of the sub-switching chambers (1, 2), in each case adjacent to the contact regions (11, 31), are arranged.
11. Schalter nach einem der Ansprüche 9 oder 10, dadurch gekennzeichnet, dass die 11. Switch according to one of claims 9 or 10, characterized in that the
Permanentmagnetanordnung zwei parallele Polplatten (55) aufweist, wobei die Polplatten (55) miteinander durch einen oder mehrere Permanentmagnete (57) zu einem im Permanent magnet arrangement comprises two parallel pole plates (55), wherein the pole plates (55) together by one or more permanent magnets (57) to a in
Wesentlichen U- förmigen Profil verbunden sind. Essentially U-shaped profile are connected.
12. Schalter nach einem der Ansprüche 5 bis 11, dadurch gekennzeichnet, dass die 12. Switch according to one of claims 5 to 11, characterized in that the
Löschvorrichtungen (61) als Deion- Kammern ausgebildet sind, mit einer Stapelanordnung gegeneinander elektrisch isolierter Bleche mit jeweils einem Luftspalt zwischen zwei benachbarten Blechen. Extinguishing devices (61) are designed as Deion- chambers, with a stacking arrangement against each other electrically insulated sheets each having an air gap between two adjacent sheets.
13. Schalter nach einem der Ansprüche 5 bis 11, dadurch gekennzeichnet, dass die 13. Switch according to one of claims 5 to 11, characterized in that the
Löschvorrichtungen durch eine Nischenanordnung mit Wänden aus Isolierstoff gebildet sind, wobei einzelne Nischen durch Nischenwände (45) und/oder Schottwände (46) weitgehend voneinander abgeschottet sind und wobei an einer außenseitigen Wand jeweils Extinguishing devices are formed by a niche arrangement with walls of insulating material, wherein individual niches by niche walls (45) and / or bulkheads (46) are largely sealed off from each other and wherein on an outside wall each
Ausblasöffnungen angeordnet sind Blowout openings are arranged
EP12780747.7A 2011-11-02 2012-11-02 Switch for multi-pole direct current operation Active EP2774158B1 (en)

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PCT/EP2012/071718 WO2013064629A1 (en) 2011-11-02 2012-11-02 Switch for multi-pole direct-current operation
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EP2463877A1 (en) * 2010-12-07 2012-06-13 Eaton Industries GmbH Switch with arcing chamber

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EP2774158B1 (en) 2017-04-19
WO2013064629A1 (en) 2013-05-10
PL2774158T3 (en) 2017-08-31
EP2590192A1 (en) 2013-05-08

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