EP2137748B1 - Installation switchgear having a device for mounting the same on a bus bar - Google Patents

Installation switchgear having a device for mounting the same on a bus bar Download PDF

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Publication number
EP2137748B1
EP2137748B1 EP08748967.0A EP08748967A EP2137748B1 EP 2137748 B1 EP2137748 B1 EP 2137748B1 EP 08748967 A EP08748967 A EP 08748967A EP 2137748 B1 EP2137748 B1 EP 2137748B1
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EP
European Patent Office
Prior art keywords
switching device
installation
attachment element
installation switching
face
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EP08748967.0A
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German (de)
French (fr)
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EP2137748A1 (en
Inventor
Joachim Majewski
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ABB AG Germany
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ABB AG Germany
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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
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to a service switching device, preferably a main circuit breaker for installation in the meter slot of an installation distribution, according to the preamble of claim 1, such as in US 6,198,063 B1 disclosed.
  • Generic service switching devices include a Isolierstoffgeophuse with a front to which a control is attached, a mounting side to which a fastening device for snapping the device is mounted on busbars of an installation distribution, broadsides that connect the front and the mounting side, and narrow sides, which also run between the front and the mounting side. Between terminals, which are accessible from the narrow sides for the connection of connecting conductors, runs within the housing, a current path, which can be interrupted at at least one main contact point by a switching device and closed again.
  • the device still includes tripping elements, such as thermal overcurrent release or magnetic quick release, which respond to faulty operating conditions of the downstream power lines, for example, a long time applied thermal overcurrent or a short-circuit current, and then interrupt the current flow through the current path in cooperation with the switching device.
  • the switching device usually comprises a pivotally mounted contact lever with a movable contact piece and a fixed contact piece, which cooperate to form an openable contact point.
  • the DE 103 06 548 A1 shows a circuit breaker device consisting of a switchable with current busbars in electrical contact switch base, a top mounted on it and with a switchable on the narrow side on both terminal module, wherein in the side walls of the switch top and the connection module ventilation channels are provided which serve to cool the circuit breaker device.
  • DE 103 35 496 A1 is a on carrier elements, in particular busbars, an electrical device, in particular a distributor, to be arranged part, in particular a service switching device, disclosed with at least one behind one of the busbars engaging first fastener and a second fastener.
  • the second fastening element is attached to the installation position in the upper narrow side of the service switching device; it includes at least one hook, with which it engages from above via one of the busbars.
  • the second attachment part is disclosed as a tab, without further functionality.
  • the DE 195 13 062 C2 shows an installation switching device, in which at the top a below the busbar cross-fastener is provided, which also electrically contacts the busbar (neutral contact). Further functionality does not show the fastener.
  • the US Pat. No. 3,818,282 shows an installation distributor, which is so sophisticated that you can directly connect a four-pin connector of a connecting cable to the distribution board.
  • this distribution board shows a junction box, the four plug-in openings for the four pins of the connector, and which is mechanically coupled together with two circuit breakers of the four poles of the connector two are the phases, one of the neutral and a fourth earth, and wherein each of the two Phase conductor is secured by one of the circuit breaker, each of the two circuit breaker is fastened by means of its terminal to a phase rail.
  • the US 6,198,063 B1 shows an installation switching device with a vent channel to which a terminal cover is attached in the region of the ventilation channel, which has a channel that receives as an extension of the ventilation duct of the service switching device, the switching gases and further away from the service switching device, the terminal cover prevents access to the terminal ,
  • a service switching device thus comprises a fastening element for fastening the service switching device on a power rail, which is mounted on the narrow side of the installation device housing and which comprises an exhaust passage whose inlet corresponds to the outlet opening of the ventilation channel, so that the switching gases exiting from the outlet opening through the exhaust duct the fastener be forwarded, wherein the fastener carries a corresponding with the outgoing terminal opening of the service switching device, on a mounting side and the top of the fastener open insertion channel for performing a connection conductor.
  • the advantage of the invention is that with a fastener several functions can be realized and thus a total of a more compact, and thus simpler structure and easier handling of the service switching device, especially when mounted in a distribution box, are possible.
  • the switching gases that occur in the event of a short-circuit interruption inside the service switching device, are removed from this in an area outside the service switching device in which they can do no harm.
  • unhindered access through the fastening device through to the terminals for local insertion of a connecting conductor is possible.
  • the fastening element comprises a base body, which is mounted on a mounting position of the installation switching device at the top located narrow side of the service switching device and which has a mounting side, which is adapted to the installation position above narrow side of the service switching device and with the fastener on the narrow side rests.
  • a latching hook is formed, which points approximately perpendicular to the mounting plane of the service switching device away from this and carries at least one bendable locking lug, with the mounting position of the service switching device, a busbar from the top is comprehensive.
  • the fastening element with the latching hook and the latching lug can be made of an electrically insulating, elastic material, such as thermal load.
  • an advantageous embodiment of the invention provides that the fastening element is latched on the narrow side of the service switching device. Another, very advantageous embodiment provides in this regard that the fastening element is latched on the narrow side of the service switching device.
  • Fastening element is fixed on the narrow side of the service switching device with a riveted joint.
  • the exhaust passage in the body of the fastener from the mounting side, starting from one side of the mounting side of the mounting element runs, so that the emerging from the outlet opening switching gases from the top Room of the busbars are led out, if the service switching device is installed in an installation distributor.
  • a further, very advantageous embodiment of the invention provides in this regard that the exhaust gas channel in the base body of the fastening element extends from the mounting side to a mounting side of the fastening element adjoining the mounting side, so that the switching gases emerging from the outlet opening point laterally toward the fastening side be led out of the space of the busbars, if the service switching device is installed in an installation distributor.
  • the thus created exit point of the switching gases is above the busbars, so that the switching gases do not hit the busbars.
  • the service switching device is provided in a three-pole design, wherein for three adjacent poles a common housing and a common fastening element is provided with a latching hook, three exhaust ducts and three insertion channels.
  • a service switching device according to the invention can also be designed in unipolar design, wherein per pole a separate fastener with a latching hook, an exhaust passage and an insertion channel is provided.
  • FIGS. 1 to 3 show an inventive installation switching device from different views.
  • FIG. 1 shows the view on the broadside
  • FIG. 2 the view from above
  • FIG. 3 the view on the front.
  • FIG. 1 shows an installation switching device 1, here a main circuit breaker.
  • a main circuit breaker In the main circuit breaker shown here, three switching poles are included in a housing. He has an insulating 2, which is assembled from two half-shells.
  • the housing has approximately the shape of a transversely T. It comprises a front front side 3, rear front sides 4 and 5, and a front side opposite mounting side 6.
  • On the mounting side 6 is provided for each pole a terminal contact 7, with which the service switching device 1 on a respective busbar 8, 81, 82, also called busbars, an installation distributor is held.
  • the service switching device In the illustration after Fig. 1 the service switching device is shown in its installed position.
  • the designated with the arrow O narrow side 9 of the housing is referred to here as the upper, rear narrow side, and designated by the arrow U narrow side 10 is referred to here as the lower, rear narrow side.
  • the narrow sides 9, 11, 12, 10 are connected to the front sides 4, 3, 5 and the attachment side 6 via broad sides 13.
  • a switch knob 14 is mounted, with a in the interior of the housing 2, in the region of the longitudinal web 15 of the T-shape, housed switching mechanism can be manually switched on and off.
  • terminals for connection of connection conductors are housed, which are accessible through corresponding terminal openings 16, 17, 18 through the housing wall therethrough. These are in the FIG. 2 to recognize, wherein each of the terminal openings 16, 17, 18 is associated with a switching pole of the device.
  • the terminals and terminal openings on the lower narrow side 10 of the housing are not shown here.
  • the terminals on the upper narrow side are spring-type terminals, in which the connection conductor can be screwed without screws.
  • An arc extinguishing arrangement 19 is shown schematically in dashed lines inside the housing, and a ventilation channel 20 leading from the arc extinguishing arrangement 19 to the upper narrow side 9 of the housing and by the switching gases and an overpressure arising during switching from the housing on the upper, rear narrow side 9 can escape through outlet openings 21.
  • a fastening element 30 is placed and fastened.
  • This has an approximately box-shaped main body 31, whose one longitudinal side is designed as a mounting side 32 and is adapted in its contour to the contour of the upper rear narrow side 9, so that the main body 31 can fit snugly on the upper rear narrow side.
  • On the mounting side 32 of the main body has a tab-like extension 311, with which it engages when placed in a kind of pocket on the upper rear narrow side 9 and is fixed there by a rivet 33.
  • a latching hook 38 is integrally formed, the elongate leg 39 protrudes in extension of the narrow side 35 of the fastening element 30 approximately senkecht to the attachment side 6 and at the free end is a locking lug 40.
  • the distance of the inner edge 41 of the locking lug 40 from the broad side 6 is dimensioned so that a busbar of double thickness can be clamped by the locking lug 40.
  • On the upper side of the elongated leg 39 is formed by two mutually parallel slot-shaped recesses 42, 43, a deformable tongue 44, see Fig. 2 , at the free end of a further inner latching lug 45 is attached.
  • the distance of the inner latching lug 45 from the attachment side 6 is dimensioned so that a busbar 83 of simple thickness can be clamped by the inner latching lug.
  • insertion channels 46, 47, 48 for the passage of a connecting conductor to the respective terminal openings 16, 17, 18.
  • the insertion channels 46, 47, 48 lie exactly over their associated terminal openings 16, 17, 18th
  • the fastening element 30 has a common all three poles latching hook, but for each switching pole an insertion and an exhaust duct, and for each switching pole a switch knob 14, 141, 142nd
  • a further latching device 49 is attached to the attachment side 6, which also comprises a latching hook with two spaced detent lugs 50, 51.
  • the locking lugs 50, 51 are mounted so that they include a busbar 82 latching from below, either a busbar of simple thickness with the locking lug 50 or a busbar double thickness with the locking lug 51st
  • the service switching device is mounted on a total of four busbars, of which the uppermost busbar 83 is the neutral conductor and the other three busbars 8, 81, 82 correspond to the phases L1, L2, L3.
  • the course of the exhaust ducts 34 in the main body 31 they can also extend so that they open at the upper broad side in the vicinity of the latching hook 38.
  • the switching gases are then discharged in the direction of the broad side toward the neutral conductor.
  • This is electrically safe, since the neutral conductor 83 does not conduct electricity.
  • this variant of the gas guide through exhaust ducts in the base body 31 if above the service switching device in a second level within the junction box further installation switching devices are mounted, so that it is avoided that the switching gases blow these other devices, or if there is a risk that from above deposits or impurities fall into the outlet openings 37 of the exhaust ducts 34 and could clog them.

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  • Gas-Insulated Switchgears (AREA)
  • Breakers (AREA)
  • Patch Boards (AREA)

Description

Die Erfindung betrifft ein Installationsschaltgerät, vorzugsweise einen Hauptleitungsschutzschalter zum Einbau in den Zählerplatz einer Installationsverteilung, gemäß dem Oberbegriff des Anspruchs 1, wie zum Beispiel in US 6 198 063 B1 offenbart.The invention relates to a service switching device, preferably a main circuit breaker for installation in the meter slot of an installation distribution, according to the preamble of claim 1, such as in US 6,198,063 B1 disclosed.

Gattungsgemäße Installationsschaltgeräte umfassen ein Isolierstoffgehäuse mit einer Frontseite, an der ein Bedienelement angebracht ist, einer Befestigungsseite, an der eine Befestigungsvorrichtung zum Aufschnappen des Gerätes auf Sammelschienen einer Installationsverteilung angebracht ist, Breitseiten, welche die Front- und die Befestigungsseite verbinden, und Schmalseiten, welche ebenfalls zwischen der Front- und der Befestigungsseite verlaufen. Zwischen Anschlussklemmen, die von den Schmalseiten aus zum Anschluss von Anschlussleitern zugänglich sind, verläuft innerhalb des Gehäuses ein Strompfad, der an wenigstens einer Hauptkontaktstelle durch eine Schaltvorrichtung unterbrochen und wieder geschlossen werden kann. Daneben umfasst das Gerät noch Auslöseelemente, wie thermische Überstromauslöser oder magnetische Schnellauslöser, die bei fehlerhaften Betriebszuständen der nachgeschalteten Stromleitungen, beispielsweise bei einem längere Zeit anliegenden thermischen Überstrom oder einem Kurzschlussstrom, ansprechen und im Zusammenwirken mit der Schaltvorrichtung dann den Stromfluss durch den Strompfad unterbrechen. Die Schaltvorrichtung umfasst üblicherweise einen schwenkbar gelagerten Kontakthebel mit einem beweglichen Kontaktstück und ein festes Kontaktstück, welche zur Bildung einer öffenbaren Kontaktstelle zusammenwirken.Generic service switching devices include a Isolierstoffgehäuse with a front to which a control is attached, a mounting side to which a fastening device for snapping the device is mounted on busbars of an installation distribution, broadsides that connect the front and the mounting side, and narrow sides, which also run between the front and the mounting side. Between terminals, which are accessible from the narrow sides for the connection of connecting conductors, runs within the housing, a current path, which can be interrupted at at least one main contact point by a switching device and closed again. In addition, the device still includes tripping elements, such as thermal overcurrent release or magnetic quick release, which respond to faulty operating conditions of the downstream power lines, for example, a long time applied thermal overcurrent or a short-circuit current, and then interrupt the current flow through the current path in cooperation with the switching device. The switching device usually comprises a pivotally mounted contact lever with a movable contact piece and a fixed contact piece, which cooperate to form an openable contact point.

Beim Öffnen der Kontaktstelle, insbesondere beim Schalten eines Kurzschlussstromes, entsteht zwischen den beiden Kontaktstücken nach deren Trennung ein Schaltlichtbogen, der zur Beschleunigung seiner Löschung über Lichtbogenleitschienen in eine Lichtbogenlöschanordnung hineingeführt wird. Beim Entstehen des Schaltlichtbogens bilden sich Schaltgase sowie eine Druckwelle. Die Schaltgase und die Druckwelle entweichen aus dem Gerät über Undichtigkeiten oder gezielt eingebrachten Öffnungen im Gehäuse, insbesondere an der Befestigungsseite. Wenn sich die Schaltgase außerhalb des Gehäuses an den Sammelschienen oder an benachbarten Geräten niederschlagen, so kann das dort zu Beeinträchtigungen führen.When opening the contact point, in particular when switching a short-circuit current, formed between the two contact pieces after the separation of a switching arc, which accelerates its deletion arc guide rails in a Arc extinguishing arrangement is led into it. When the switching arc is generated, switching gases and a pressure wave form. The switching gases and the pressure wave escape from the device via leaks or deliberately introduced openings in the housing, in particular on the attachment side. If the switching gases precipitate on the busbars or on neighboring devices outside the housing, this can lead to impairments.

Die DE 103 06 548 A1 zeigt eine Schutzschaltereinrichtung, bestehend aus einem mit Stromsammelschienen in elektrischen Kontakt verbringbaren Schalterunterteil, einem darauf aufsetzbaren Schalteroberteil und mit einem an der Schmalseite auf beide aufsetzbares Anschlussmodul, wobei in den Seitenwänden des Schalteroberteils und des Anschlussmoduls Lüftungskanäle vorgesehen sind, die zur Kühlung der Schutzschaltereinrichtung dienen.The DE 103 06 548 A1 shows a circuit breaker device consisting of a switchable with current busbars in electrical contact switch base, a top mounted on it and with a switchable on the narrow side on both terminal module, wherein in the side walls of the switch top and the connection module ventilation channels are provided which serve to cool the circuit breaker device.

In der DE 103 35 496 A1 ist ein auf Trägerelementen, insbesondere Stromschienen, einer elektrischen Einrichtung, insbesondere eines Verteilers, anzuordnendes Teil, insbesondere ein Installationsschaltgerät, offenbart, mit wenigstens einem hinter eine der Stromschienen greifenden ersten Befestigungselement und einem zweiten Befestigungselement. Das zweite Befestigungselement ist an der in Einbaulage oberen Schmalseite des Installationsschaltgerätes angebracht; es umfasst mindestens einen Haken, mit dem es von oben über eine der Sammelschienen greift. Das zweite Befestigungsteil ist als Lasche offenbart, ohne weitere Funktionalität.In the DE 103 35 496 A1 is a on carrier elements, in particular busbars, an electrical device, in particular a distributor, to be arranged part, in particular a service switching device, disclosed with at least one behind one of the busbars engaging first fastener and a second fastener. The second fastening element is attached to the installation position in the upper narrow side of the service switching device; it includes at least one hook, with which it engages from above via one of the busbars. The second attachment part is disclosed as a tab, without further functionality.

Die DE 195 13 062 C2 zeigt ein Installationsschaltgerät, bei dem an der Oberseite ein unter die Sammelschiene greifendes Befestigungselement vorgesehen ist, welches darüber hinaus die Sammelschiene elektrisch kontaktiert (Neutralleiter-Kontaktierung). Weitere Funktionalität zeigt das Befestigungselement nicht.The DE 195 13 062 C2 shows an installation switching device, in which at the top a below the busbar cross-fastener is provided, which also electrically contacts the busbar (neutral contact). Further functionality does not show the fastener.

Die US 3 818 282 zeigt einen Installationsverteiler, der so ertüchtigt ist, dass man direkt einen vierpoligen Anschlussstecker eines Anschlusskabels an den Installationsverteiler anstecken kann. Dazu zeigt dieser Installationsverteiler eine Anschlussdose, die vier Einstecköffnungen für die vier Kontaktstifte des Anschlusssteckers, und die mit zwei Leitungsschutzschaltern mechanisch zusammengekoppelt ist wobei von den vier Polen des Anschlusssteckers zwei die Phasen sind, einer der Neutralleiter und ein vierter Erde, und wobei jeder der beiden Phasenleiter von einem der Leitungsschutzschalter abgesichert wird, wobei jeder der beiden Leitungsschutzschalter mittels seiner Anschlussklemme an einer Phasenschiene befestigt ist.The US Pat. No. 3,818,282 shows an installation distributor, which is so sophisticated that you can directly connect a four-pin connector of a connecting cable to the distribution board. To this end, this distribution board shows a junction box, the four plug-in openings for the four pins of the connector, and which is mechanically coupled together with two circuit breakers of the four poles of the connector two are the phases, one of the neutral and a fourth earth, and wherein each of the two Phase conductor is secured by one of the circuit breaker, each of the two circuit breaker is fastened by means of its terminal to a phase rail.

Die US 6 198 063 B1 zeigt ein Installationsschaltgerät mit einem Entlüftungskanal, an dem im Bereich des Entlüftungskanals ein Klemmenabdeckteil befestigt ist, welches einen Kanal hat, der in Verlängerung des Entlüftungskanals des Installationsschaltgerätes die Schaltgase aufnimmt und weiter von dem Installationsschaltgerät weg führt, wobei das Klemmenabdeckteil den Zugang zu der Anschlussklemme verhindert.The US 6,198,063 B1 shows an installation switching device with a vent channel to which a terminal cover is attached in the region of the ventilation channel, which has a channel that receives as an extension of the ventilation duct of the service switching device, the switching gases and further away from the service switching device, the terminal cover prevents access to the terminal ,

Es ist die Aufgabe der vorliegenden Erfindung, ein Installationsschaltgerät mit einer Vorrichtung zur Befestigung auf einer Stromschiene zu schaffen, bei dem die Schaltgase kontrolliert so geführt werden, dass keine Beeinträchtigung der Umgebung des Schaltgerätes eintritt.It is the object of the present invention to provide a service switching device with a device for mounting on a power rail, in which the switching gases are controlled controlled so that no impairment of the environment of the switching device occurs.

Die Aufgabe wird gelöst durch ein gattungsgemäßes Installationsschaltgerät gemäß Anspruch 1.The object is achieved by a generic service switching device according to claim 1.

Erfindungsgemäß umfasst ein erfindungsgemäßes Installationsschaltgerät also ein Befestigungselement zur Befestigung des Installationsschaltgerätes auf einer Stromschiene, welches an der Schmalseite des Installationsgerätegehäuses angebracht ist und welches einen Abgaskanal umfasst, dessen Eintrittsöffnung mit der Austrittsöffnung des Entlüftungskanals korrespondiert, so dass die aus der Austrittsöffnung austretenden Schaltgase durch den Abgaskanal des Befestigungselementes weitergeleitet werden, wobei das Befestigungselement einen mit der Abgangsklemmenöffnung des Installationsschaltgerätes korrespondierenden, an einer Montageseite und der Oberseite des Befestigungselementes offenen Einführkanal zum Durchführen eines Anschlussleiters trägt.According to the invention, a service switching device according to the invention thus comprises a fastening element for fastening the service switching device on a power rail, which is mounted on the narrow side of the installation device housing and which comprises an exhaust passage whose inlet corresponds to the outlet opening of the ventilation channel, so that the switching gases exiting from the outlet opening through the exhaust duct the fastener be forwarded, wherein the fastener carries a corresponding with the outgoing terminal opening of the service switching device, on a mounting side and the top of the fastener open insertion channel for performing a connection conductor.

Der Vorteil der Erfindung liegt darin, dass mit einem Befestigungselement mehrere Funktionen verwirklicht werden können und somit insgesamt ein kompakterer, und damit einfacherer Aufbau und eine einfachere Handhabung des Installationsschaltgerätes, insbesondere bei der Montage in einem Verteilerkasten, ermöglicht werden. Die Schaltgase, die bei einer Kurzschlussunterbrechung im Inneren des Installationsschaltgerätes entstehen, werden aus diesem abgeführt in einen Bereich außerhalb des Installationsschaltgerätes, in dem sie keinen Schaden anrichten können. Gleichzeitig ist der ungehinderte Zugang durch die Befestigungsvorrichtung hindurch zu den Anschlussklemmen zum dortigen Einführen eines Anschlussleiters möglich.The advantage of the invention is that with a fastener several functions can be realized and thus a total of a more compact, and thus simpler structure and easier handling of the service switching device, especially when mounted in a distribution box, are possible. The switching gases that occur in the event of a short-circuit interruption inside the service switching device, are removed from this in an area outside the service switching device in which they can do no harm. At the same time unhindered access through the fastening device through to the terminals for local insertion of a connecting conductor is possible.

Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung umfasst das Befestigungselement einen Grundkörper, welcher an einer in Einbaulage des Installationsschaltgerätes oben gelegenen Schmalseite des Installationsschaltgerätes angebracht ist und welcher eine Montageseite aufweist, welche der in Einbaulage oben gelegenen Schmalseite des Installationsschaltgerätes angepasst ist und mit der das Befestigungselement auf der Schmalseite aufliegt. Dadurch ist gewährleistet, dass eine dichte Anbindung des Befestigungselementes an die Schmalseite des Gehäuses erfolgt und die Schaltgase nicht außerhalb des Abgaskanals entweichen können.According to a particularly advantageous embodiment of the invention, the fastening element comprises a base body, which is mounted on a mounting position of the installation switching device at the top located narrow side of the service switching device and which has a mounting side, which is adapted to the installation position above narrow side of the service switching device and with the fastener on the narrow side rests. This ensures that a tight connection of the fastener is made to the narrow side of the housing and the switching gases can not escape outside the exhaust duct.

An dem Befestigungselement ist gemäß einer vorteilhaften Ausbildung der Erfindung ein Rasthaken angeformt, der etwa senkrecht zu der Befestigungsebene des Installationsschaltgerätes von dieser weg weist und mindestens eine biegbare Rastnase trägt, mit der in Einbaulage des Installationsschaltgerätes eine Stromschiene von oben umfassbar ist.On the fastener according to an advantageous embodiment of the invention, a latching hook is formed, which points approximately perpendicular to the mounting plane of the service switching device away from this and carries at least one bendable locking lug, with the mounting position of the service switching device, a busbar from the top is comprehensive.

Das Befestigungselement mit dem Rasthaken und der Rastnase kann dabei aus einem elektrisch isolierenden, elastischen Material, beispielsweise Thermolast, bestehen.The fastening element with the latching hook and the latching lug can be made of an electrically insulating, elastic material, such as thermal load.

Bezüglich der Befestigung des Befestigungselementes an dem Gehäuse des Installationsschaltgerätes sieht eine vorteilhafte Ausführungsform der Erfindung vor, dass das Befestigungselement auf der Schmalseite des Installationsschaltgerätes aufgerastet ist. Eine weitere, sehr vorteilhafte Ausführungsform sieht diesbezüglich vor, dass dasWith regard to the attachment of the fastening element to the housing of the service switching device, an advantageous embodiment of the invention provides that the fastening element is latched on the narrow side of the service switching device. Another, very advantageous embodiment provides in this regard that the

Befestigungselement auf der Schmalseite des Installationsschaltgerätes mit einer Nietverbindung befestigt ist.Fastening element is fixed on the narrow side of the service switching device with a riveted joint.

Bezüglich der Lage des Abgaskanals in dem Befestigungselement sieht eine vorteilhafte Ausführungsform der Erfindung vor, dass der Abgaskanal in dem Grundkörper des Befestigungselementes von der Montageseite ausgehend zu einer der Montageseite gegenüberliegenden Oberseite des Befestigungselementes verläuft, so dass die aus der Austrittsöffnung austretenden Schaltgase nach oben aus dem Raum der Sammelschienen hinausgeführt werden, wenn das Installationsschaltgerät in einem Installationsverteiler eingebaut ist.With respect to the position of the exhaust passage in the fastener provides an advantageous embodiment of the invention that the exhaust passage in the body of the fastener from the mounting side, starting from one side of the mounting side of the mounting element runs, so that the emerging from the outlet opening switching gases from the top Room of the busbars are led out, if the service switching device is installed in an installation distributor.

Eine weitere, sehr vorteilhafte Ausführungsform der Erfindung sieht diesbezüglich vor, dass der Abgaskanal in dem Grundkörper des Befestigungselementes von der Montageseite ausgehend zu einer an die Montageseite angrenzenden Befestigungsseite des Befestigungselementes verläuft, so dass die aus der Austrittsöffnung austretenden Schaltgase seitlich in Richtung auf die Befestigungsseite hin aus dem Raum der Sammelschienen hinausgeführt werden, wenn das Installationsschaltgerät in einem Installationsverteiler eingebaut ist. Der so geschaffene Austrittspunkt der Schaltgase liegt dabei oberhalb der Sammelschienen, so dass die Schaltgase nicht die Sammelschienen treffen.A further, very advantageous embodiment of the invention provides in this regard that the exhaust gas channel in the base body of the fastening element extends from the mounting side to a mounting side of the fastening element adjoining the mounting side, so that the switching gases emerging from the outlet opening point laterally toward the fastening side be led out of the space of the busbars, if the service switching device is installed in an installation distributor. The thus created exit point of the switching gases is above the busbars, so that the switching gases do not hit the busbars.

Gemäß einer vorteilhaften Ausführungsform der Erfindung ist das Installationsschaltgerät in dreipoliger Ausführung vorgesehen, wobei für drei nebeneinander liegende Pole ein gemeinsames Gehäuse und ein gemeinsames Befestigungselement mit einem Rasthaken, drei Abgaskanälen und drei Einführkanälen vorgesehen ist. Gemäß einer weiteren vorteilhaften Ausführungsform der Erfindung kann ein erfindungsgemäßes Installationsschaltgerät auch in einpoliger Ausführung ausgeführt sein, wobei pro Pol ein eigenes Befestigungselement mit einem Rasthaken, einem Abgaskanal und einem Einführkanal vorgesehen ist.According to an advantageous embodiment of the invention, the service switching device is provided in a three-pole design, wherein for three adjacent poles a common housing and a common fastening element is provided with a latching hook, three exhaust ducts and three insertion channels. According to a further advantageous embodiment of the invention, a service switching device according to the invention can also be designed in unipolar design, wherein per pole a separate fastener with a latching hook, an exhaust passage and an insertion channel is provided.

Anhand der Zeichnungen, in denen ein Ausführungsbeispiel der Erfindung dargestellt ist, sind die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben.Reference to the drawings, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention are explained and described in detail.

Es zeigen

Figur 1
eine Ansicht auf die Breitseite eines erfindungsgemäßen Installationsschaltgerätes,
Figur 2
eine Ansicht auf die Schmalseite eines erfindungsgemäßen dreipoligen Installationsschaltgerätes, sowie
Figur 3
eine Ansicht auf die Frontseite eines erfindungsgemäßen Installationsschaltgerätes.
Show it
FIG. 1
a view of the broad side of a service switching device according to the invention,
FIG. 2
a view on the narrow side of a three-pole service switching device according to the invention, as well as
FIG. 3
a view of the front of a service switching device according to the invention.

Die Figuren 1 bis 3 zeigen ein erfindungsgemäßes Installationsschaltgerät aus verschiedenen Ansichten. Figur 1 zeigt die Ansicht auf die Breitseite, Figur 2 die Ansicht von oben, und Figur 3 die Ansicht auf die Frontseite.The FIGS. 1 to 3 show an inventive installation switching device from different views. FIG. 1 shows the view on the broadside, FIG. 2 the view from above, and FIG. 3 the view on the front.

Es werde zunächst die Figur 1 betrachtet. Diese zeigt ein Installationsschaltgerät 1, hier einen Hauptleitungsschutzschalter. Bei dem hier gezeigten Hauptleitungsschutzschalter sind drei Schaltpole in einem Gehäuse umfasst. Er verfügt über ein Isolierstoffgehäuse 2, welches aus zwei Halbschalen zusammengefügt ist. Das Gehäuse hat in etwa die Form eines quergestellten T. Es umfasst eine vordere Frontseite 3, hintere Frontseiten 4 und 5, und eine den Frontseiten gegenüberliegende Befestigungsseite 6. An der Befestigungsseite 6 ist ein für jeden Pol ein Klemmkontakt 7 vorgesehen, mit dem das Installationsschaltgerät 1 auf je einer Stromschiene 8, 81, 82, auch Sammelschienen genannt, eines Installationsverteilers gehalten ist. In der Darstellung nach Fig. 1 ist das Installationsschaltgerät in seiner Einbaulage gezeigt. Die mit dem Pfeil O bezeichnete Schmalseite 9 des Gehäuses wird hier als obere, hintere Schmalseite bezeichnet, und die mit dem Pfeil U bezeichnete Schmalseite 10 wird hier als untere, hintere Schmalseite bezeichnet. Zwischen der vorderen Frontseite 3 und den hinteren Frontseiten 4, 5 liegen noch eine obere, vordere Schmalseite 11 und eine untere, vordere Schmalseite 12. Die Schmalseiten 9, 11, 12, 10 werden mit den Frontseiten 4, 3, 5 sowie der Befestigungsseite 6 über Breitseiten 13 verbunden.It will be the first FIG. 1 considered. This shows an installation switching device 1, here a main circuit breaker. In the main circuit breaker shown here, three switching poles are included in a housing. He has an insulating 2, which is assembled from two half-shells. The housing has approximately the shape of a transversely T. It comprises a front front side 3, rear front sides 4 and 5, and a front side opposite mounting side 6. On the mounting side 6 is provided for each pole a terminal contact 7, with which the service switching device 1 on a respective busbar 8, 81, 82, also called busbars, an installation distributor is held. In the illustration after Fig. 1 the service switching device is shown in its installed position. The designated with the arrow O narrow side 9 of the housing is referred to here as the upper, rear narrow side, and designated by the arrow U narrow side 10 is referred to here as the lower, rear narrow side. Between the front front side 3 and the rear front sides 4, 5 are still an upper front narrow side 11 and a lower, front narrow side 12. The narrow sides 9, 11, 12, 10 are connected to the front sides 4, 3, 5 and the attachment side 6 via broad sides 13.

An der vorderen Frontseite 3 ist ein Schaltknebel 14 angebracht, mit dem ein im Inneren des Gehäuses 2, im Bereich des Längssteges 15 der T-Form, untergebrachtes Schaltwerk manuell ein- und ausgeschaltet werden kann.On the front front side 3, a switch knob 14 is mounted, with a in the interior of the housing 2, in the region of the longitudinal web 15 of the T-shape, housed switching mechanism can be manually switched on and off.

An der oberen und unteren Schmalseite 9, 10 des Gehäuses sind Anschlussklemmen zum Anschluss von Anschlussleitern untergebracht, die durch entsprechende Anschlussklemmenöffnungen 16, 17, 18 durch die Gehäusewand hindurch zugänglich sind. Diese sind in der Figur 2 zu erkennen, wobei jede der Anschlussklemmenöffnungen 16, 17, 18 einem Schaltpol des Gerätes zugeordnet ist. Die Klemmen und Klemmenöffnungen an der unteren Schmalseite 10 des Gehäuses sind hier nicht dargestellt. Bei den Klemmen an der oberen Schmalseite handelt es sich um Federzugklemmen, in denen der Anschlussleiter schraubenlos festklemmbar ist.On the upper and lower narrow side 9, 10 of the housing terminals for connection of connection conductors are housed, which are accessible through corresponding terminal openings 16, 17, 18 through the housing wall therethrough. These are in the FIG. 2 to recognize, wherein each of the terminal openings 16, 17, 18 is associated with a switching pole of the device. The terminals and terminal openings on the lower narrow side 10 of the housing are not shown here. The terminals on the upper narrow side are spring-type terminals, in which the connection conductor can be screwed without screws.

Im Inneren des Gehäuses ist strichliiert schematisch eine Lichtbogenlöschanordnung 19 dargestellt, und ein Entlüftungskanal 20 , der von der Lichtbogenlöschanordnung 19 aus zu der oberen Schmalseite 9 des Gehäuses führt und durch den Schaltgase und ein beim Schalten entstehender Überdruck aus dem Gehäuse an der oberen, hinteren Schmalseite 9 durch Austrittsöffnungen 21 entweichen können.An arc extinguishing arrangement 19 is shown schematically in dashed lines inside the housing, and a ventilation channel 20 leading from the arc extinguishing arrangement 19 to the upper narrow side 9 of the housing and by the switching gases and an overpressure arising during switching from the housing on the upper, rear narrow side 9 can escape through outlet openings 21.

Auf die obere, hintere Schmalseite 9 des Gehäuses 2 ist ein Befestigungselement 30 aufgesetzt und befestigt. Dieses besitzt einen in etwa kastenförmigen Grundkörper 31, dessen eine Längsseite als Montageseite 32 ausgebildet und in ihrer Kontur der Kontur der oberen hinteren Schmalseite 9 angepasst ist, so dass der Grundkörper 31 sich passgenau auf die obere hintere Schmalseite aufsetzen lässt. An der Montageseite 32 besitzt der Grundkörper einen laschenartigen Fortsatz 311, mit dem er beim Aufsetzen in eine Art Tasche an der oberen hinteren Schmalseite 9 eingreift und dort durch eine Nietverbindung 33 fixiert ist.On the upper, rear narrow side 9 of the housing 2, a fastening element 30 is placed and fastened. This has an approximately box-shaped main body 31, whose one longitudinal side is designed as a mounting side 32 and is adapted in its contour to the contour of the upper rear narrow side 9, so that the main body 31 can fit snugly on the upper rear narrow side. On the mounting side 32 of the main body has a tab-like extension 311, with which it engages when placed in a kind of pocket on the upper rear narrow side 9 and is fixed there by a rivet 33.

Im Inneren des Grundkörpers 31 verlaufen Abgaskanäle 34 zwischen der Montageseite 32 und der gegenüberliegenden Schmalseite 35. Die Eintrittsöffnungen 36 der Abgaskanäle liegen auf den Austrittsöffnungen 21 der Entlüftungskanäle 20. Dadurch werden die Schaltgase nach Austritt aus den Austrittsöffnungen 21 weiter nach oben bis zu den Austrittsöffnungen 37 der Abgaskanäle 34 geführt, wo sie in die Umgebung austreten. Der Austritt an den Austrittsöffnungen 37 befindet sich so weit von den Sammelschienen 8, 81, 82, 83 entfernt, dass keine Beeinträchtigung der Sammelschienen durch die austretenden Schaltgase zu befürchten ist.In the interior of the main body 31 run exhaust ducts 34 between the mounting side 32 and the opposite narrow side 35. The inlet openings 36 of the exhaust channels are located on the outlet openings 21 of the ventilation channels 20. As a result, the switching gases after exiting the outlet openings 21 continue up to the Outlet openings 37 of the exhaust ducts 34 out where they escape into the environment. The outlet at the outlet openings 37 is located so far away from the busbars 8, 81, 82, 83 that no impairment of the busbars is to be feared by the exiting switching gases.

An dem Grundkörper 31 ist ein Rasthaken 38 angeformt, dessen längserstreckter Schenkel 39 in Verlängerung der Schmalseite 35 des Befestigungselementes 30 etwa senkecht zur Befestigungsseite 6 hervorsteht und an dessen freiem Ende sich eine Rastnase 40 befindet. Der Abstand der Innenkante 41 der Rastnase 40 von der Breitseite 6 ist so bemessen, dass eine Sammelschiene von doppelter Dicke durch die Rastnase 40 klemmend umfasst werden kann. Auf der Oberseite des längserstreckten Schenkels 39 ist durch zwei parallel zueinander verlaufende schlitzförmige Aussparungen 42, 43 eine verformbare Zunge 44 gebildet, siehe Fig. 2, an deren freien Ende eine weitere, innere Rastnase 45 angebracht ist. Der Abstand der inneren Rastnase 45 von der Befestigungsseite 6 ist so bemessen, dass eine Sammelschiene 83 von einfacher Dicke durch die innere Rastnase klemmend umfasst werden kann. Durch diese Anordnung von zwei zueinander versetzten Rastnasen kann der Rasthaken 38 sowohl auf Sammelschienen einfacher oder doppelter Dicke verrastet werden.On the base body 31, a latching hook 38 is integrally formed, the elongate leg 39 protrudes in extension of the narrow side 35 of the fastening element 30 approximately senkecht to the attachment side 6 and at the free end is a locking lug 40. The distance of the inner edge 41 of the locking lug 40 from the broad side 6 is dimensioned so that a busbar of double thickness can be clamped by the locking lug 40. On the upper side of the elongated leg 39 is formed by two mutually parallel slot-shaped recesses 42, 43, a deformable tongue 44, see Fig. 2 , at the free end of a further inner latching lug 45 is attached. The distance of the inner latching lug 45 from the attachment side 6 is dimensioned so that a busbar 83 of simple thickness can be clamped by the inner latching lug. By this arrangement of two mutually offset latching lugs 38 of the latching hook can be locked both on busbars simple or double thickness.

Durch den Grundkörper 31 verlaufen weiterhin Einführkanäle 46, 47, 48 zum Durchstecken eines Anschlussleiters zu den jeweiligen Anschlussklemmenöffnungen 16, 17, 18. Die Einführkanäle 46, 47, 48 liegen dabei genau über den ihnen zugeordneten Anschlussklemmenöffnungen 16, 17, 18.Through the main body 31 continue to run insertion channels 46, 47, 48 for the passage of a connecting conductor to the respective terminal openings 16, 17, 18. The insertion channels 46, 47, 48 lie exactly over their associated terminal openings 16, 17, 18th

Bei dem in den Figuren dargestellten Installationsschaltgerät besitzt das Befestigungselement 30 einen allen drei Polen gemeinsamen Rasthaken, aber für jeden Schaltpol einen Einführkanal und einen Abgaskanal, sowie für jeden Schaltpol einen Schaltknebel 14, 141, 142.In the installation switching device shown in the figures, the fastening element 30 has a common all three poles latching hook, but for each switching pole an insertion and an exhaust duct, and for each switching pole a switch knob 14, 141, 142nd

In der Nähe der unteren Schmalseite 10 ist an der Befestigungsseite 6 eine weitere Rastvorrichtung 49 angebracht, welche ebenfalls einen Rasthaken mit zwei voneinander beabstandeten Rastnasen 50, 51 umfasst. Die Rastnasen 50, 51 sind so angebracht, dass sie eine Sammelschiene 82 von unten her rastend umfassen, und zwar entweder eine Sammelschiene einfacher Dicke mit der Rastnase 50 oder eine Sammelschiene doppelter Dicke mit der Rastnase 51.In the vicinity of the lower narrow side 10, a further latching device 49 is attached to the attachment side 6, which also comprises a latching hook with two spaced detent lugs 50, 51. The locking lugs 50, 51 are mounted so that they include a busbar 82 latching from below, either a busbar of simple thickness with the locking lug 50 or a busbar double thickness with the locking lug 51st

Im dargestellten Beispiel ist das Installationsschaltgerät auf insgesamt vier Sammelschienen befestigt, von denen die oberste Sammelschiene 83 der Neutralleiter ist und die anderen drei Sammelschienen 8, 81, 82 den Phasen L1, L2,L3 entsprechen.In the example shown, the service switching device is mounted on a total of four busbars, of which the uppermost busbar 83 is the neutral conductor and the other three busbars 8, 81, 82 correspond to the phases L1, L2, L3.

In Abwandlung des in der Figur 1 gezeigten Verlaufs der Abgaskanäle 34 in dem Grundkörper 31 können diese auch so verlaufen, dass sie an der oberen Breitseite in der Nähe des Rasthakens 38 münden. Die Schaltgase werden dann in Richtung der Breitseite zu dem Neutralleiter hin abgeleitet. Das ist elektrisch unbedenklich, da der Neutralleiter 83 keinen Strom führt. Vorteilhaft ist diese Variante der Gasführung durch Abgaskanäle in dem Grundkörper 31 dann, wenn oberhalb des Installationsschaltgerätes in einer zweiten Ebene innerhalb des Verteilerkastens weitere Installationsschaltgeräte angebracht sind, so dass es vermieden wird, dass die Schaltgase diese anderen Geräte anblasen, oder wenn die Gefahr besteht, dass von oben Ablagerungen oder Verunreinigungen in die Austrittsöffnungen 37 der Abgaskanäle 34 hineinfallen und diese verstopfen könnten. Bezugszeichenliste 1 Installationsschaltgerät 21 Austrittsöffnungen 2 Isolierstoffgehäuse 30 Befestigungselement 3 vordere Frontseite 31 Grundkörper 4 hintere Frontseite 311 laschenartiger Fortsatz 5 hintere Frontseite 32 Montageseite 6 Befestigungsseite 33 Nietverbindung 7 Klemmkontakt 34 Abgaskanal 8 Stromschiene, Sammelschiene 35 gegenüberliegende Schmalseite 81 Stromschiene, Sammelschiene 82 Stromschiene, Sammelschiene 36 Eintrittsöffnungen 83 Stromschiene, Sammelschiene 37 Austrittsöffnungen 9 Schmalseite oben 38 Rasthaken 10 Schmalseite unten 39 längserstreckter Schenkel 11 vordere, obere Schmalseite 40 Rastnase 12 vordere, untere Schmalseite 41 Innenseite 13 Breitseite 42 schlitzförmige Aussparung 14 Schaltknebel 43 schlitzförmige Aussparung 141 Schaltknebel 44 Zunge 142 Schaltknebel 45 innere Rastnase 15 Längssteg der T-Form 46 Einführkanal 16 Anschlussklemmenöffnung 47 Einführkanal 17 Anschlussklemmenöffnung 48 Einführkanal 18 Anschlussklemmenöffnung 49 weitere Rastvorrichtung 19 Lichtbogenlöschanordnung 50 weitere Rastnase 20 Entlüftungskanal 51 weitere Rastnase In modification of the in the FIG. 1 As shown, the course of the exhaust ducts 34 in the main body 31, they can also extend so that they open at the upper broad side in the vicinity of the latching hook 38. The switching gases are then discharged in the direction of the broad side toward the neutral conductor. This is electrically safe, since the neutral conductor 83 does not conduct electricity. Advantageously, this variant of the gas guide through exhaust ducts in the base body 31, if above the service switching device in a second level within the junction box further installation switching devices are mounted, so that it is avoided that the switching gases blow these other devices, or if there is a risk that from above deposits or impurities fall into the outlet openings 37 of the exhaust ducts 34 and could clog them. <U> REFERENCE LIST </ u> 1 Service switching device 21 outlet openings 2 Insulated 30 fastener 3 front front 31 body 4 rear front 311 tab-like extension 5 rear front 32 mounting side 6 mounting side 33 rivet 7 clamping contact 34 exhaust duct 8th Busbar, busbar 35 opposite narrow side 81 Busbar, busbar 82 Busbar, busbar 36 inlet openings 83 Busbar, busbar 37 outlet openings 9 Narrow side above 38 latch hook 10 Narrow side below 39 Elongated thigh 11 front, upper narrow side 40 locking lug 12 front, lower narrow side 41 inside 13 broadside 42 slot-shaped recess 14 toggle switch 43 slot-shaped recess 141 toggle switch 44 tongue 142 toggle switch 45 inner catch 15 Longitudinal bar of the T-shape 46 introduction channel 16 Terminal Opening 47 introduction channel 17 Terminal Opening 48 introduction channel 18 Terminal Opening 49 another locking device 19 Arc quenching arrangement 50 another catch 20 vent channel 51 another catch

Claims (10)

  1. Installation switching device (1), having a connecting terminal which is fitted to a narrow face (9) of the installation device housing, having a switching apparatus which has a quenching chamber (19) and in which switching gases are created during a switching operation, having a vent channel (20) through which the switching gases can escape from the housing interior and whose outlet opening is located close to the connecting terminal on the housing narrow face (9), characterized by an attachment element (30) for attachment of the installation switching device (1) to a busbar (83), which is fitted to the narrow face (9) of the installation device housing and has an exhaust-gas channel (34) whose inlet opening corresponds with the outlet opening of the vent channel (20), such that the switching gases which emerge from the outlet opening are passed on through the exhaust-gas channel (34) of the attachment element, with the attachment element (30) being fitted with an entry channel for a connecting conductor to pass through, which entry channel corresponds with the outgoer terminal opening of the installation switching device (1) and is open on a mounting face (32) and the upper face.
  2. Installation switching device (1) according to Claim 1, with the attachment element (30) comprising a base body (31) which is fitted on a narrow face (9) of the installation switching device (1), which is located at the top when the installation switching device (1) is in the installed position, and which has the mounting face (32) which is matched to the narrow face (9) of the installation switching device (1) which is located at the top in the installed position, and by means of which the attachment element (30) rests on the narrow face (9).
  3. Installation switching device (1) according to Claim 2, with a latching hook (38) being integrally formed on the attachment element (30), which latching hook points away from the attachment plane of the installation switching device (1) approximately at right angles to this plane, and which latching hook is fitted with at least one flexible latching tab (40) which can grip a busbar (38) from above when the installation switching device (1) is in the installed position.
  4. Installation switching device (1) according to Claim 3, with the attachment element (30) together with the latching hook (38) and the latching tab (40) being composed of an electrically insulating, elastic material, for example Thermolast.
  5. Installation switching device (1) according to one of the preceding claims, with the attachment element (30) being latched onto the narrow face (9) of the installation switching device (1).
  6. Installation switching device (1) according to one of Claims 1 to 4, with the attachment element (30) being attached to the narrow face (9) of the installation switching device (1) by a riveted joint.
  7. Installation switching device (1) according to Claim 2, with the exhaust gas channel (34) running in the base body (31) of the attachment element (30) from the mounting face (32) to an upper face of the attachment element (30) which is opposite the mounting face (32), such that the switching gases which emerge from the outlet opening are passed upward out of the area of the busbars when the installation switching device (1) is installed in an installation distribution block.
  8. Installation switching device (1) according to Claim 2, with the exhaust gas channel (34) running in the base body (31) of the attachment element (30) from the mounting face (32) to an attachment face, which is adjacent to the mounting face (32), of the attachment element (30), such that the switching gases which emerge from the outlet opening are passed out of the area of the busbars at the side in the direction of the attachment face, when the installation switching device (1) is installed in an installation distribution block.
  9. Installation switching device (1) according to one of the preceding claims, in a three-pole version, with a common attachment element (30) with a latching hook (38), three exhaust gas channels and three entry channels being provided for three poles which are located alongside one another.
  10. Installation switching device (1) according to one of Claims 1 to 8, in a single-pole version, with a dedicated attachment element (30) with a latching hook (38), an exhaust gas channel (34) and an entry channel being provided for each pole.
EP08748967.0A 2007-04-19 2008-04-17 Installation switchgear having a device for mounting the same on a bus bar Active EP2137748B1 (en)

Applications Claiming Priority (3)

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DE102007018521 2007-04-19
PCT/EP2008/003095 WO2008128705A1 (en) 2007-04-19 2008-04-17 Installation switchgear having a device for mounting the same on a bus bar
DE102008019474A DE102008019474A1 (en) 2007-04-19 2008-04-17 Installation switching device with a device for fixing the same on a power rail

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EP2137748A1 EP2137748A1 (en) 2009-12-30
EP2137748B1 true EP2137748B1 (en) 2019-01-16

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EP (1) EP2137748B1 (en)
CN (2) CN101689432A (en)
CA (1) CA2683666A1 (en)
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US20100133236A1 (en) 2010-06-03
DE102008019474A1 (en) 2008-10-23
CN101689432A (en) 2010-03-31
WO2008128705A1 (en) 2008-10-30
CN201185166Y (en) 2009-01-21
CA2683666A1 (en) 2008-10-30
EP2137748A1 (en) 2009-12-30

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