EP2214189A1 - Switch, in particular voltage switch with bifunctional extinguishing plate - Google Patents

Switch, in particular voltage switch with bifunctional extinguishing plate Download PDF

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Publication number
EP2214189A1
EP2214189A1 EP09001399A EP09001399A EP2214189A1 EP 2214189 A1 EP2214189 A1 EP 2214189A1 EP 09001399 A EP09001399 A EP 09001399A EP 09001399 A EP09001399 A EP 09001399A EP 2214189 A1 EP2214189 A1 EP 2214189A1
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EP
European Patent Office
Prior art keywords
switch
switch according
layer
insulator
quenching plates
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EP09001399A
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German (de)
French (fr)
Inventor
Martin Heimler
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Siemens AG
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Siemens AG
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Priority to EP09001399A priority Critical patent/EP2214189A1/en
Publication of EP2214189A1 publication Critical patent/EP2214189A1/en
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    • 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
    • H01H9/362—Mounting of plates in arc chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/62—Heating or cooling of contacts
    • 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
    • H01H9/345—Mounting of arc chutes

Definitions

  • the invention relates to a switch, comprising a housing in which an overload and short-circuit tripping device, a movable and a fixed contact and at least one splitter stack of a plurality of quenching plates are arranged.
  • a switch in particular a circuit breaker must fulfill several functions, such as protection against short circuit, overload or phase failure and limiting current stability as well as the current carrying in the continuous-on operation at different ambient temperatures.
  • the current carrying, especially in the continuous-on operation provides additional heating power, which must absorb the switch and dissipate to the outside. So far, this has been done mainly by current-carrying cables that are connected to the switching device. Due to the low heat dissipation of the whole switch is strongly heated, whereby the overload protection, however, above all, the limiting current stability is greatly impaired. Thus, the power consumption of a switch and the maximum current to be supplied are limited by the ambient temperature.
  • U1 arc splitter packages which form a space with the aid of a quenching chamber cover, in which a cooling device for escaping switching gases is arranged.
  • This cooling device referred to as damping device, is held on the extinguishing chamber cover by means of a screw which connects two cover parts which can be displaced relative to one another. Therefore, the arc chamber without cooling device can not be used.
  • a cooling device which can be inserted as needed in a space between the cover and quenching plates.
  • a mounting pin which is formed on this.
  • the mounting pin locks with corresponding receiving openings, which are mounted directly on the inside of the lid.
  • the cooling device is designed as a slide-in cassette and contains a deionizing agent for cooling the switching gases.
  • the described cooling elements are used to cool switching gases that are generated during a function, the short-circuit tripping of the switch. However, these switching gases are present during the continuous-on operation, so that the cooling device is not assigned a function during the continuous-on operation. Thus, the air flowing through the switch or the air flowing around the extinguishing package does not have any cooling property in the continuous on operation since the splitter stack is not thermally coupled to the fixed contact or the current paths.
  • the invention is therefore an object of the invention to allow the cooling of a switch during the continuous on-operation.
  • the switch according to the invention in which an overload and short-circuit tripping device, a movable and a fixed contact and at least one splitter stack of a plurality of quenching plates are arranged, is characterized in that the fixed contact over a non-conductive layer resting on the at least one splitter stack disposed is.
  • the extinguishing plates located in the switching device according to the invention are thermally and mechanically thermally and mechanically connected to a baffle which is formed on the fixed contacts and a heat-conducting and electrically insulating layer with a contact system.
  • a heat-conducting and electrically insulating layer can also be referred to as a heat bridge or "heat pipe".
  • the thermal bridge may be composed of mica, a ceramic block plate, an oxide layer (Al 2 O 3 ), a thermal adhesive with electrically insulating properties or an intermediate layer of thermally and electrically conductive metal plates (for example copper) in combination with an insulator.
  • the individual quenching plates and the baffle do not contact each other electrically.
  • Essential to the invention is the concentrated cooling of the protective device through the quenching plates, which thus also serve as cooling plates and thus have bifunctional properties.
  • the quenching plates serve as heat sinks, which are connected by the thermal coupling to the current path directly to the current path, especially the nearby switching contacts, heat conductively. It allows larger currents and services on the same volume.
  • the influence of the switched contacts on the limiting current stability is lower, so that consequently the protective devices work more reliably in overload protection.
  • the thermal coupling of the extinguishing or cooling plates can be controlled by the choice of coupling.
  • a particularly advantageous embodiment is that the quenching plates are arranged in parallel one above the other and combined into a splitter stack, so the splitter stack is designed as a space-saving, assembly friendly unit.
  • a further advantageous embodiment provides that between the quenching plates in each case a layer is arranged, the heat-conducting, the individual quenching plates, mechanically and electrically non-conductive connects and so in addition to a package holds together.
  • quenching plates are held by an insulating strip, through which a splitter stack is formed, so that when using a thermally conductive and electrically non-conductive material, the heat conduction can take place.
  • the layer of an insulator such as mica
  • mica is very temperature resistant and can be split into very thin slices due to the easy cleavability along the layer plane.
  • a particularly advantageous embodiment is also when the layer of an insulator, such as ceramic block platelets is formed, which have a very good thermal conductivity.
  • a further advantageous embodiment provides that the layer is formed of an insulator such as Al 2 O 3 , which has a low density and a low thermal expansion.
  • a further advantage is the use of a layer which is formed from an insulator, such as thermal adhesive, which has an increased temperature stability.
  • An additionally advantageous embodiment consists in that the layer is formed from a combination of a metal plate with an electrical insulator.
  • the quenching plates have a ribbed shape, since the area is increased for cooling by the ribbed shape of the splitter stack.
  • a particularly advantageous embodiment provides that at least one splitter stack of air can be flowed through, since the splitter stack is used as a heat sink and with the same volume of construction switching larger power or currents is possible.
  • a switch 1 which comprises a housing 2, which consists of a housing lower part 3, on which a housing cover 4 is mounted.
  • the lower housing part 3 is designed as a switching chamber 5 and has on two opposite side walls 6 exhaust openings 7. The exhaust openings 7 are traversed by air.
  • a first lower baffle 9 is arranged on the housing bottom 8.
  • two arc splitter stacks 10, 11 are disposed opposite the baffle 9 in each case.
  • the splitter stack 10, 11 consist of quenching plates 12 which are held by an electrically non-conductive layer 13 and are arranged one above the other in parallel.
  • On the splitter stacks 10, 11 formed as the upper baffle 14 fixed contacts 15 are arranged on the splitter stacks 10, 11 formed as the upper baffle 14 fixed contacts 15 are arranged.
  • the fixed contacts 15 are designed for connecting external conductors 16.
  • the movable contacts 17 are arranged, which are in operative connection with a switching lock unit 18.
  • the switching lock unit 18 is arranged above the fixed contacts 15.
  • a short-circuit release unit 19 and a thermal trip unit 20 are arranged, which is in operative connection with these.
  • Fig. 2 shows the switch 1, in which the quenching plates 12 are arranged, which are connected to each other by means of a layer 13 and an insulating strip 23, the heat conductive, but electrically non-conductive, and so form a splitter stack 10, 11.
  • the splitter stack 10, 11 is preferably formed in ribbed form 22.
  • the air flowing through the switching device 1 through the exhaust port 7, cools the switching device during the continuous-on operation.
  • Below the fixed contacts 15, the movable fixed contacts 17 are arranged below the fixed contacts 15, the movable fixed contacts 17 are arranged.
  • the switch according to the invention occupies an existing element of a switching device, the splitter stack with an additional function, the cooling function.
  • the basic concept of a circuit breaker itself is not changed. However, it is possible that with the same volume of construction, the switching of larger power or currents can be realized.

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  • Breakers (AREA)

Abstract

The switch (1) comprises a housing (2) in which an overload release device (20), a short-circuit release device (19), a movable contact (17) and a fixed contact (15) are provided. A quenching plate packet (10,11) is provided, which is made from multiple quenching plates (12). The fixed contact is arranged lying on the quenching plate packet over a non-conductive layer (13). The non-conductive layer is made from an insulator, such as ceramic block plate or aluminum oxide.

Description

Die Erfindung betrifft einen Schalter, aufweisend ein Gehäuse, in welchem eine Überlast- und Kurzschlussauslösevorrichtung, ein beweglicher und ein fester Kontakt sowie mindestens ein Löschblechpaket aus einer Mehrzahl von Löschblechen angeordnet sind.The invention relates to a switch, comprising a housing in which an overload and short-circuit tripping device, a movable and a fixed contact and at least one splitter stack of a plurality of quenching plates are arranged.

Ein Schalter, insbesondere ein Leistungsschalter muss mehrere Funktionen, wie zum Beispiel Schutz vor Kurzschluss, Überlast oder Phasenausfall und Grenzstromstabilität sowie das Stromführen im Dauer-Ein-Betrieb bei unterschiedlichen Umgebungstemperaturen erfüllen.A switch, in particular a circuit breaker must fulfill several functions, such as protection against short circuit, overload or phase failure and limiting current stability as well as the current carrying in the continuous-on operation at different ambient temperatures.

Das Stromführen, insbesondere im Dauer-Ein-Betrieb sorgt für eine zusätzliche Heizleistung, die der Schalter aufnehmen und nach außen abführen muss. Dies erfolgt bisher überwiegend durch stromführende Leitungen, die an das Schaltgerät angeschlossen werden. Durch die geringe Wärmeabfuhr wird der ganze Schalter stark aufgeheizt, wodurch der Überlastschutz vor Allem jedoch die Grenzstromstabilität stark beeinträchtigt wird. Somit sind die Leistungsaufnahme eines Schalters und der maximal zu führende Strom durch die Umgebungstemperatur begrenzt.The current carrying, especially in the continuous-on operation provides additional heating power, which must absorb the switch and dissipate to the outside. So far, this has been done mainly by current-carrying cables that are connected to the switching device. Due to the low heat dissipation of the whole switch is strongly heated, whereby the overload protection, however, above all, the limiting current stability is greatly impaired. Thus, the power consumption of a switch and the maximum current to be supplied are limited by the ambient temperature.

Aus der DE 298 07 119 U1 sind Löschblechpakete bekannt, die mit Hilfe eines Löschkammerdeckels einen Raum bilden, in welchem eine Kühleinrichtung für austretende Schaltgase angeordnet ist. Diese als Dämpfungseinrichtung bezeichnete Kühleinrichtung ist am Löschkammerdeckel mittels einer Schraube gehalten, die zwei relativ zueinander verschiebbare Deckelteile verbindet. Daher kann die Lichtbogenkammer ohne Kühleinrichtung nicht verwendet werden.From the DE 298 07 119 U1 arc splitter packages are known which form a space with the aid of a quenching chamber cover, in which a cooling device for escaping switching gases is arranged. This cooling device, referred to as damping device, is held on the extinguishing chamber cover by means of a screw which connects two cover parts which can be displaced relative to one another. Therefore, the arc chamber without cooling device can not be used.

Aus der DE 101 49 019 C1 ist eine Kühleinrichtung bekannt, die je nach Bedarf in einen Raum zwischen Deckel und Löschblechen einschiebbar ist. Zur Befestigung der Kühleinrichtung dient ein Befestigungszapfen, der an dieser angeformt ist. Der Befestigungszapfen verrastet mit entsprechenden Aufnahmeöffnungen, die direkt an der Innenseite des Deckels angebracht sind. Die Kühleinrichtung ist als Einschubkassette ausgebildet und enthält zur Kühlung der Schaltgase ein Entionisierungsmittel.From the DE 101 49 019 C1 is a cooling device is known, which can be inserted as needed in a space between the cover and quenching plates. To attach the cooling device is a mounting pin which is formed on this. The mounting pin locks with corresponding receiving openings, which are mounted directly on the inside of the lid. The cooling device is designed as a slide-in cassette and contains a deionizing agent for cooling the switching gases.

Die beschriebenen Kühlelemente dienen der Kühlung von Schaltgasen, die bei einer Funktion, der Kurzschlussauslösung des Schalters entstehen. Diese Schaltgase sind während des Dauer-Ein-Betriebes jedoch vorhanden, so dass der Kühleinrichtung während des Dauer-Ein-Betriebes keine Funktion zugeordnet ist. Somit weist die den Schalter durchströmende beziehungsweise die das Löschpaket umströmende Luft im Dauer-Ein-Betrieb keine kühlende Eigenschaft auf, da das Löschblechpaket nicht mit dem Festschaltstück beziehungsweise den Strombahnen thermisch leitend gekoppelt ist.The described cooling elements are used to cool switching gases that are generated during a function, the short-circuit tripping of the switch. However, these switching gases are present during the continuous-on operation, so that the cooling device is not assigned a function during the continuous-on operation. Thus, the air flowing through the switch or the air flowing around the extinguishing package does not have any cooling property in the continuous on operation since the splitter stack is not thermally coupled to the fixed contact or the current paths.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, die Kühlung eines Schalters während des Dauer-Ein-Betriebes zu ermöglichen.The invention is therefore an object of the invention to allow the cooling of a switch during the continuous on-operation.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Weitere Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind der Gegenstand der abhängigen Ansprüche. Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen 2 bis 10 zu entnehmen.The object is solved by the features of claim 1. Further training and further education, which can be used individually or in combination with each other, are the subject of the dependent claims. Advantageous developments of the invention can be found in the dependent claims 2 to 10.

Der erfindungsgemäße Schalter, in welchem eine Überlast- und Kurzschlussauslösevorrichtung, ein beweglicher und ein fester Kontakt sowie mindestens ein Löschblechpaket aus einer Mehrzahl von Löschblechen angeordnet sind, zeichnet sich dadurch aus, dass der feste Kontakt über eine nicht leitende Schicht auf dem mindestens einem Löschblechpaket aufliegend angeordnet ist. Die im erfindungemäßen Schaltgerät befindlichen Löschbleche sind mit einem Leitblech, das den Festkontakten angeformt ist, thermisch und mechanisch über eine Wärme leitende und elektrisch isolierende Schicht mit einem Kontaktsystem verbunden. Eine Wärme leitende und elektrisch isolierende Schicht kann auch als Wärmebrücke beziehungsweise "heat pipe" bezeichnet werden. Dabei kann die Wärmebrücke aus Glimmer, einem Keramikblockplättchen, einer Oxidschicht (Al2O3), einem Wärmeleitkleber mit elektrisch isolierenden Eigenschaften oder einer Zwischenschicht aus thermisch und elektrisch leitenden Metallplättchen (zum Beispiel Kupfer) in Kombination mit einem Isolator zusammengesetzt sein. Wesentlich ist, dass sich die einzelnen Löschbleche sowie das Leitblech untereinander nicht elektrisch kontaktieren. Erfindungswesentlich ist die konzentrierte Kühlung des Schutzgerätes durch die Löschbleche, die somit auch als Kühlbleche dienen und somit bifunktionale Eigenschaften aufweisen. Die Löschbleche dienen als Kühlkörper, die durch die thermische Ankopplung an die Strombahn direkt mit der Strombahn, speziell den nahe liegenden Schaltkontakten, Wärme leitend verbunden sind. Es werden so größere Ströme und Leistungen auf gleichem Bauvolumen ermöglicht. Zudem ist der Einfluss der geschalteten Kontakte auf die Grenzstromstabilität geringer, so dass folglich die Schutzgeräte im Überlastschutz zuverlässiger arbeiten. Des Weiteren ist die thermische Ankopplung der Lösch- beziehungsweise Kühlbleche durch die Wahl der Ankopplung steuerbar.The switch according to the invention, in which an overload and short-circuit tripping device, a movable and a fixed contact and at least one splitter stack of a plurality of quenching plates are arranged, is characterized in that the fixed contact over a non-conductive layer resting on the at least one splitter stack disposed is. The extinguishing plates located in the switching device according to the invention are thermally and mechanically thermally and mechanically connected to a baffle which is formed on the fixed contacts and a heat-conducting and electrically insulating layer with a contact system. A heat-conducting and electrically insulating layer can also be referred to as a heat bridge or "heat pipe". In this case, the thermal bridge may be composed of mica, a ceramic block plate, an oxide layer (Al 2 O 3 ), a thermal adhesive with electrically insulating properties or an intermediate layer of thermally and electrically conductive metal plates (for example copper) in combination with an insulator. It is essential that the individual quenching plates and the baffle do not contact each other electrically. Essential to the invention is the concentrated cooling of the protective device through the quenching plates, which thus also serve as cooling plates and thus have bifunctional properties. The quenching plates serve as heat sinks, which are connected by the thermal coupling to the current path directly to the current path, especially the nearby switching contacts, heat conductively. It allows larger currents and services on the same volume. In addition, the influence of the switched contacts on the limiting current stability is lower, so that consequently the protective devices work more reliably in overload protection. Furthermore, the thermal coupling of the extinguishing or cooling plates can be controlled by the choice of coupling.

Eine besonders vorteilhafte Ausführung besteht darin, dass die Löschbleche parallel übereinander angeordnet und zu einem Löschblechpaket zusammengefasst sind, somit ist das Löschblechpaket als Platz sparende, Montage freundliche Einheit ausgebildet.A particularly advantageous embodiment is that the quenching plates are arranged in parallel one above the other and combined into a splitter stack, so the splitter stack is designed as a space-saving, assembly friendly unit.

Eine weitere vorteilhafte Ausführung sieht vor, dass zwischen den Löschblechen jeweils eine Schicht angeordnet ist, die die einzelnen Löschbleche miteinander wärmeleitend, mechanisch und elektrisch nicht leitend verbindet und so zusätzlich zu einem Paket zusammenhält.A further advantageous embodiment provides that between the quenching plates in each case a layer is arranged, the heat-conducting, the individual quenching plates, mechanically and electrically non-conductive connects and so in addition to a package holds together.

Vorteilhaft ist außerdem, dass die Löschbleche von einem Isolierstreifen gehalten werden, durch den ein Löschblechpaket gebildet wird, so dass bei Verwendung eines wärmeleitenden und elektrisch nicht leitenden Materials die Wärmeleitung erfolgen kann.It is also advantageous that the quenching plates are held by an insulating strip, through which a splitter stack is formed, so that when using a thermally conductive and electrically non-conductive material, the heat conduction can take place.

Es ist insbesondere von Vorteil, wenn die Schicht aus einem Isolator, wie Glimmer, ausgebildet ist, da Glimmer sehr temperaturbeständig ist und auf Grund der leichten Spaltbarkeit entlang der Schichtebene sich in sehr dünne Scheiben aufspalten lässt.It is particularly advantageous if the layer of an insulator, such as mica, is formed because mica is very temperature resistant and can be split into very thin slices due to the easy cleavability along the layer plane.

Eine besonders vorteilhafte Ausführung besteht zudem, wenn die Schicht aus einem Isolator, wie Keramikblockplättchen, ausgebildet ist, die eine sehr gute Wärmeleitfähigkeit aufweisen.A particularly advantageous embodiment is also when the layer of an insulator, such as ceramic block platelets is formed, which have a very good thermal conductivity.

Eine weitere vorteilhafte Ausführungsform sieht vor, dass die Schicht aus einem Isolator wie Al2O3 ausgebildet ist, das eine geringe Dichte und eine geringe thermische Ausdehnung aufweist.A further advantageous embodiment provides that the layer is formed of an insulator such as Al 2 O 3 , which has a low density and a low thermal expansion.

Vorteilhaft ist weiterhin die Verwendung einer Schicht, die aus einem Isolator, wie Wärmeleitkleber ausgebildet ist, der eine erhöhte Temperaturstabilität aufweist.A further advantage is the use of a layer which is formed from an insulator, such as thermal adhesive, which has an increased temperature stability.

Eine zusätzlich vorteilhafte Ausführung besteht darin, dass die Schicht aus einer Kombination aus einem Metallplättchen mit elektrischem Isolator ausgebildet ist.An additionally advantageous embodiment consists in that the layer is formed from a combination of a metal plate with an electrical insulator.

Zudem ist es von Vorteil, wenn die Löschbleche eine gerippte Form aufweisen, da durch die gerippte Form der Löschblechpakete die Fläche zur Kühlung vergrößert wird.In addition, it is advantageous if the quenching plates have a ribbed shape, since the area is increased for cooling by the ribbed shape of the splitter stack.

Eine besonders vorteilhafte Ausführung sieht vor, dass mindestens ein Löschblechpaket von Luft durchströmbar ist, da das Löschblechpaket als Kühlkörper dient und bei gleichem Bauvolumen das Schalten größerer Leistung beziehungsweise Ströme möglich ist.A particularly advantageous embodiment provides that at least one splitter stack of air can be flowed through, since the splitter stack is used as a heat sink and with the same volume of construction switching larger power or currents is possible.

Weitere Vorteile werden anhand der Zeichnung näher erläutert.Further advantages will be explained in more detail with reference to the drawing.

Dabei zeigen:

  • Fig. 1 in schematischer Darstellung einen Schalter mit Löschblechvorrichtung gemäß der Erfindung;
  • Fig. 2 in schematischer Darstellung einen Schalter mit erfindungsgemäßer Löschblechvorrichtung.
Showing:
  • Fig. 1 a schematic representation of a switch with splitter device according to the invention;
  • Fig. 2 in a schematic representation of a switch with inventive Löschblechvorrichtung.

In Fig. 1 ist ein Schalter 1 gezeigt, der ein Gehäuse 2 umfasst, das aus einem Gehäuseunterteil 3, auf dem ein Gehäusedeckel 4 aufmontiert ist, besteht. Das Gehäuseunterteil 3 ist als Schaltkammer 5 ausgebildet und weist an zwei gegenüber liegenden Seitenwänden 6 Ausblasöffnungen 7 auf. Die Ausblasöffnungen 7 sind von Luft durchströmt. In der Schaltkammer 5 ist am Gehäuseboden 8 ein erstes unteres Leitblech 9 angeordnet. In der Schaltkammer 5 sind über dem Leitblech 9 jeweils zwei Löschblechpakete 10, 11 gegenüber liegend angeordnet. Die Löschblechpakete 10, 11 bestehen aus Löschblechen 12, die durch eine elektrisch nicht leitende Schicht 13 gehalten sind und übereinander parallel angeordnet sind. Auf den Löschblechpaketen 10, 11 sind die als oberes Leitblech 14 ausgebildeten Festkontakte 15 angeordnet. Die Festkontakte 15 sind zum Anschluss externer Leiter 16 ausgebildet. Unterhalb der Festkontakte 15 sind die beweglichen Kontakte 17 angeordnet, die mit einer Schaltschlosseinheit 18 in Wirkverbindung stehen. Die Schaltschlosseinheit 18 ist oberhalb der Festkontakte 15 angeordnet. An der Schaltschlosseinheit 18 sind eine Kurzschlussauslöseeinheit 19 und eine thermische Auslöseeinheit 20 angeordnet, die mit diesen in Wirkverbindung steht.In Fig. 1 a switch 1 is shown, which comprises a housing 2, which consists of a housing lower part 3, on which a housing cover 4 is mounted. The lower housing part 3 is designed as a switching chamber 5 and has on two opposite side walls 6 exhaust openings 7. The exhaust openings 7 are traversed by air. In the switching chamber 5, a first lower baffle 9 is arranged on the housing bottom 8. In the switching chamber 5, two arc splitter stacks 10, 11 are disposed opposite the baffle 9 in each case. The splitter stack 10, 11 consist of quenching plates 12 which are held by an electrically non-conductive layer 13 and are arranged one above the other in parallel. On the splitter stacks 10, 11 formed as the upper baffle 14 fixed contacts 15 are arranged. The fixed contacts 15 are designed for connecting external conductors 16. Below the fixed contacts 15, the movable contacts 17 are arranged, which are in operative connection with a switching lock unit 18. The switching lock unit 18 is arranged above the fixed contacts 15. At the switching lock unit 18, a short-circuit release unit 19 and a thermal trip unit 20 are arranged, which is in operative connection with these.

Fig. 2 zeigt den Schalter 1, in welchem die Löschbleche 12 angeordnet sind, die mittels einer Schicht 13 beziehungsweise eines Isolierstreifens 23, der Wärme leitend, jedoch elektrisch nicht leitend ist, miteinander verbunden sind und so ein Löschblechpaket 10, 11 bilden. Das Löschblechpaket 10, 11 ist vorzugsweise in gerippter Form 22 ausgebildet. Auf den Löschblechpaketen 10, 11 sind die als oberes Leitblech 14 ausgebildeten Festkontakte 15 mittels einer Schicht 13, die Wärme leitend, jedoch elektrisch nicht leitend ist, miteinander verbunden. Die Luft, die das Schaltgerät 1 durch die Ausblasöffnung 7 durchströmt, kühlt das Schaltgerät während des Dauer-Ein-Betriebes. Unterhalb der Festkontakte 15 sind die beweglichen Festkontakte 17 angeordnet. Fig. 2 shows the switch 1, in which the quenching plates 12 are arranged, which are connected to each other by means of a layer 13 and an insulating strip 23, the heat conductive, but electrically non-conductive, and so form a splitter stack 10, 11. The splitter stack 10, 11 is preferably formed in ribbed form 22. On the splitter stack 10, 11 formed as the upper baffle 14 fixed contacts 15 are connected to each other by means of a layer 13, the heat conductive, but electrically non-conductive. The air flowing through the switching device 1 through the exhaust port 7, cools the switching device during the continuous-on operation. Below the fixed contacts 15, the movable fixed contacts 17 are arranged.

Durch den erfindungsgemäßen Schalter wird ein bestehendes Element eines Schaltgeräts, das Löschblechpaket mit einer zusätzlichen Funktion, der Kühlfunktion, belegt. Das Grundkonzept eines Leistungsschalters selbst wird dadurch nicht verändert. Es wird jedoch ermöglicht, dass bei gleichem Bauvolumen das Schalten von größeren Leistungen beziehungsweise Strömen realisiert werden kann.The switch according to the invention occupies an existing element of a switching device, the splitter stack with an additional function, the cooling function. The basic concept of a circuit breaker itself is not changed. However, it is possible that with the same volume of construction, the switching of larger power or currents can be realized.

Claims (11)

Schalter (1) aufweisend ein Gehäuse (2), in welches eine Überlast- (20) und Kurzschlussauslösevorrichtung (19), ein beweglicher (17) und ein fester (15) Kontakt und mindestens ein Löschblechpaket (10,11), aus einer Mehrzahl von Löschblechen (12) angeordnet sind,
dadurch gekennzeichnet,
dass der feste Kontakt (15) über eine nicht leitende Schicht (13) auf dem mindestens einem Löschblechpaket (10,11) aufliegend angeordnet ist.Switch (1) comprising a housing (2), in which an overload (20) and short-circuit release device (19), a movable (17) and a fixed (15) contact and at least one splitter stack (10,11), of a plurality of quenching plates (12) are arranged,
characterized,
that the fixed contact (15) via a non-conductive layer (13) on the at least one splitter assembly (10,11) is arranged resting. Schalter nach Anspruch 1,
dadurch gekennzeichnet,
dass die Löschbleche (12) parallel übereinander angeordnet sind.Switch according to claim 1,
characterized,
that the quenching plates (12) are arranged in parallel one above the other. Schalter nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass zwischen den Löschblechen (12) jeweils die nicht leitende Schicht (13) angeordnet ist.Switch according to claim 1 or 2,
characterized,
that in each case the non-conductive layer (13) is arranged between the quenching plates (12). Schalter nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Löschbleche (12) von einem Isolierstreifen (23) gehalten sind.Switch according to claim 1 or 2,
characterized,
that the quenching plates (12) by an insulating strip (23) are held. Schalter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Schicht (13) oder der Isolierstreifen (23) aus einem Isolator, wie Glimmer, ausgebildet ist.Switch according to claim 3 or 4,
characterized,
in that the layer (13) or the insulating strip (23) is formed from an insulator, such as mica. Schalter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Schicht (13) oder der Isolierstreifen (23) aus einem Isolator, wie Keramikblockplättchen ausgebildet ist.Switch according to claim 3 or 4,
characterized,
in that the layer (13) or the insulating strip (23) is formed from an insulator, such as ceramic block platelets. Schalter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Schicht (13) oder der Isolierstreifen (23) aus einem Isolator, wie Al2O3 ausgebildet ist.Switch according to claim 3 or 4,
characterized,
in that the layer (13) or the insulating strip (23) is formed from an insulator, such as Al 2 O 3 . Schalter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Schicht (13) aus einem Isolator, wie Wärmeleitkleber, ausgebildet ist.Switch according to claim 3 or 4,
characterized,
that the layer (13) is formed of an insulator such as thermally conductive adhesive. Schalter nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass die Schicht (13) aus einer Kombination aus einem Metallplättchen mit elektrischem Isolator nach Anspruch 4 bis 8 ausgebildet ist.Switch according to claim 3 or 4,
characterized,
that the layer (13) is formed of a combination of a metal plate with an electrical insulator according to claims 4 to eighth Schalter nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Löschbleche (12) eine gerippte Form (22) aufweisen.Switch according to one or more of the preceding claims,
characterized,
that the quenching plates (12) have a corrugated shape (22). Schalter nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass mindestens ein Löschblechpaket von Luft durchströmbar ist.Switch according to one or more of the preceding claims,
characterized,
that at least one splitter stack of air can be flowed through.
EP09001399A 2009-02-02 2009-02-02 Switch, in particular voltage switch with bifunctional extinguishing plate Withdrawn EP2214189A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09001399A EP2214189A1 (en) 2009-02-02 2009-02-02 Switch, in particular voltage switch with bifunctional extinguishing plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09001399A EP2214189A1 (en) 2009-02-02 2009-02-02 Switch, in particular voltage switch with bifunctional extinguishing plate

Publications (1)

Publication Number Publication Date
EP2214189A1 true EP2214189A1 (en) 2010-08-04

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EP (1) EP2214189A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012025555A1 (en) * 2010-08-25 2012-03-01 Abb Technology Ag Arc chute for a circuit breaker, circuit breaker and method for assembling an arc chute
EP2950321A1 (en) * 2014-05-30 2015-12-02 LSIS Co., Ltd. Circuit breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29807119U1 (en) 1998-04-09 1998-06-18 Siemens AG, 80333 München Low voltage circuit breaker with an arc extinguisher
DE10149019C1 (en) 2001-09-28 2003-06-18 Siemens Ag Arc quenching device for low-voltage switchgear
EP1655752A2 (en) * 2004-11-09 2006-05-10 EATON Corporation Arc chute and circuit interrupter employing the same
EP1923897A2 (en) * 2006-11-16 2008-05-21 ABB PATENT GmbH Electric switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29807119U1 (en) 1998-04-09 1998-06-18 Siemens AG, 80333 München Low voltage circuit breaker with an arc extinguisher
DE10149019C1 (en) 2001-09-28 2003-06-18 Siemens Ag Arc quenching device for low-voltage switchgear
EP1655752A2 (en) * 2004-11-09 2006-05-10 EATON Corporation Arc chute and circuit interrupter employing the same
EP1923897A2 (en) * 2006-11-16 2008-05-21 ABB PATENT GmbH Electric switch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012025555A1 (en) * 2010-08-25 2012-03-01 Abb Technology Ag Arc chute for a circuit breaker, circuit breaker and method for assembling an arc chute
EP2950321A1 (en) * 2014-05-30 2015-12-02 LSIS Co., Ltd. Circuit breaker
CN105185624A (en) * 2014-05-30 2015-12-23 Ls产电株式会社 Circuit breaker
RU2600115C1 (en) * 2014-05-30 2016-10-20 ЭлЭсАйЭс КО., ЛТД. Circuit breaker
CN105185624B (en) * 2014-05-30 2017-07-28 Ls产电株式会社 Breaker
US9774180B2 (en) 2014-05-30 2017-09-26 Lsis Co., Ltd. Circuit breaker

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