EP2064721B1 - Switching device with integrated main current path tap - Google Patents

Switching device with integrated main current path tap Download PDF

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Publication number
EP2064721B1
EP2064721B1 EP06805333.9A EP06805333A EP2064721B1 EP 2064721 B1 EP2064721 B1 EP 2064721B1 EP 06805333 A EP06805333 A EP 06805333A EP 2064721 B1 EP2064721 B1 EP 2064721B1
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EP
European Patent Office
Prior art keywords
switching device
main current
current path
contact interface
housing
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EP06805333.9A
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German (de)
French (fr)
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EP2064721A1 (en
Inventor
Alfred BÄUML
Johann Drexler
Alexander Keintzel
Peter Schlegl
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector

Definitions

  • the invention relates to a switching device having at least one main current path and at least one contact interface, which are connected to one another via at least one internal electrically conductive connection.
  • the invention further relates to an evaluation unit for determining the state of a switching device having at least one main flow path upstream protection device, a communication module for a switching device with at least one main flow path for communication with the switching device and a controller for the switching device via at least one communication connection and a system of one Switching device and a protective device upstream of this, which can be connected via at least one main flow path, and an evaluation unit.
  • Such a switching device or system is used in particular in load feeders such as motor starters.
  • Switching devices for load feeders are used e.g. used in switchgear, which are usually protected in several levels against short circuits (infeed, distribution, consumer).
  • the condition of the e.g. Motor starter characterized by the control of the switching device, such as a contactor, by the feedback of the controlled switching device state and by the notification of the state of at least one upstream protection device, which, for. may be a circuit breaker, a fuse or an overvoltage protection relay.
  • the contactor control system comprises a contactor module, an overload / control module, communication module and an alarm module.
  • a contactor which has a contactor and a protective and control direction connected thereto.
  • the protection and control direction is connected with a plug to a conductor of the contactor.
  • the contactor comprises a contactor, a protection and control module, and a communication module.
  • the protection and control module is connected with a connector to a track of the contactor.
  • the closest prior art to this application forms the FR 2 799 572 A1 , It describes a switching device having at least one main current path with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device, and having at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path.
  • the invention has for its object to provide a switching device that allows monitoring of the switching device upstream protection device with minimal wiring.
  • the invention is further based on the object of specifying an evaluation unit and a communication module for a switching device according to the invention as well as a system comprising such a switching device, a protective device connected upstream thereto and an evaluation unit.
  • a switching device with at least one main current path, with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device and which is arranged in a housing of the switching device, and with at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path.
  • the object is further achieved by an evaluation unit, or by a system having the features specified in claim 10 to 12 or 13 features.
  • the at least one main current path of the switching device is connected via an electrically conductive connection with a respective contact interface on the switching device.
  • the evaluation unit eg as an additional module, can then be connected to these contact interfaces (contacting points, areas or points) without requiring a further additional part.
  • the state of the protective device can be determined, for example, by a voltage measurement on the at least one main flow path of the evaluation unit.
  • the switching device also has at least one guide channel in a switching chamber for at least one spring element.
  • the additional information is obtained in the simplest way that a voltage is present at the switching device.
  • This direct evaluation of the switching state of the protective device on the switching device eliminates the previously required wiring to an additional auxiliary switch on the relay, with the wiring effort and a possible source of error is minimized.
  • the proposed solution is also independent of the spatial structure (branch or line-oriented) in a control cabinet and independent of the connection technology.
  • Fig. 1 shows a switching device 1 with main circuits 6 and interfaces 2, 3 and a mechanical Ankoppelstelle 4 in a front side of the housing 5.
  • the contact interfaces 2 are electrically connected to the main current paths 6, so that an interface connected to the 2 evaluation unit the state of the switching device upstream protection device can determine, for example via a voltage measurement, which on the one hand, an auxiliary switch on the protection device with associated wiring is no longer needed and on the other hand, the additional information on a concern of the voltage at the switching device 1 is present.
  • PLC programmable logic controller
  • the communication with the PLC to further minimize the wiring effort can also be done via a communication module 7, which can be connected by means of a mechanical Ankoppelstelle 4 with the switching device 1.
  • the switching device 1 is designed as a contactor
  • the upstream protection device is typically a circuit breaker, which is connected to the contactor via the main current paths 6.
  • Fig. 2 shows a communication module 7 with contacts 8, 9 for attachment to a switching device 1 with contact interfaces as in Fig. 1 shown.
  • an evaluation unit for determining the state of the contactor 1 upstream protection device is integrated.
  • the contacts 8 contact the interface 3 for the coil terminal of the contactor 1, the contacts 9 connect the contact interfaces 2 for the tapping of the main current paths 6 with the integrated in the communication module 7 evaluation.
  • the communication module 7 can be easily attached to the switching device 1 by means of the contacts 8, 9.
  • the mechanical connection is made via the mechanical coupling point 4 of the contactor.
  • Fig. 3 shows the relevant to the invention part of a switching device 1 in an exploded view, in which case another embodiment of a switching device 1 as in Fig. 1 is shown.
  • the front side of the housing 5 with the interfaces 2, 3 and the mechanical coupling point 4 can be seen.
  • injected line parts 10 are provided as part of the electrically conductive connection between the main current paths 6 and contact interfaces.
  • the tap of the main flow paths 6 via spring elements, such as a contact spring 11 or a resilient pin 12, the Festschalt choiren 14 of the main flow paths 6.
  • the spring elements 11, 12 at the same time create the electrical connection and a tolerance compensation between the Festschalt choiren 14 and the injected line parts 10th
  • the assembly is effected simply by inserting the spring elements 11, 12 in the guide channels 13 and by attaching the contactor cover of the housing 5 to the switching chamber, so that they the fixed contact pieces 14 of the main current paths 6 contact.
  • the spring elements 11, 12 may also be mechanically connected to the injected line parts 10.
  • Fig. 4 shows the contactor cover of the housing 5 from the lying in the assembled state in the interior of the switching device 1 side, so that the injected line parts 10 are clearly visible. In addition, one sees again the mechanical coupling point 4 and in this view only one of the interfaces 3 for the coil connection.
  • Fig. 5 shows a tap of the main current paths 6 at the Festschalt Wegen 14 by means of contact springs 11.
  • the contact springs 11 establish a direct electrically conductive connection between the contact interfaces 2 and the Festschalt Genevaen 14 ago.
  • contact pins can also be used in this embodiment, in which the contacting via the clamping force instead of the spring force (tolerance compensation takes place through a hole in Festschalt 1:1) takes place on the Festschalt.
  • Other embodiments for the electrical connection can be realized, for example, by welding, press-fitting or clamping.
  • the invention relates to a switching device having at least one main flow path and at least one contact interface, which are connected to each other via at least one internal electrically conductive connection.
  • a switching device is proposed with at least one main current path, with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device and in a housing of the switching device is arranged, and with at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path.
  • the direct evaluation of the switching state of the protective device on the switching device eliminates the previously required wiring to an additional auxiliary switch on the protection device, with the wiring effort and a possible source of error is minimized.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

Die Erfindung betrifft ein Schaltgerät mit zumindest einer Hauptstrombahn und zumindest einer Kontaktschnittstelle, die über zumindest eine interne elektrisch leitende Verbindung miteinander verbunden sind.The invention relates to a switching device having at least one main current path and at least one contact interface, which are connected to one another via at least one internal electrically conductive connection.

Die Erfindung betrifft ferner eine Auswerteeinheit zur Ermittlung des Zustandes einer einem Schaltgerät mit zumindest einer Hauptstrombahn vorgeschalteten Schutzvorrichtung, ein Kommunikationsmodul für ein Schaltgerät mit zumindest einer Hauptstrombahn zur Kommunikation mit dem Schaltgerät und einer Steuerung für das Schaltgerät über je zumindest eine Kommunikationsanbindung sowie ein System aus einem Schaltgerät und einer diesem vorgeschalteten Schutzvorrichtung, die über zumindest eine Hauptstrombahn verbindbar sind, und einer Auswerteeinheit.The invention further relates to an evaluation unit for determining the state of a switching device having at least one main flow path upstream protection device, a communication module for a switching device with at least one main flow path for communication with the switching device and a controller for the switching device via at least one communication connection and a system of one Switching device and a protective device upstream of this, which can be connected via at least one main flow path, and an evaluation unit.

Ein derartiges Schaltgerät bzw. System kommt insbesondere bei Verbraucherabzweigen wie beispielsweise Motorstartern zum Einsatz. Schaltgeräte für Verbraucherabzweige werden z.B. in Schaltanlagen eingesetzt, die im Regelfall in mehreren Ebenen gegen Kurzschlüsse abgesichert werden (Einspeisung, Verteilung, Verbraucher). Dabei ist der Zustand des z.B. Motorstarters gekennzeichnet durch die Ansteuerung des Schaltgerätes, beispielsweise eines Schützes, durch die Rückmeldung des angesteuerten Schaltgerätezustands sowie durch die Meldung des Zustands der zumindest einen vorgeschalteten Schutzvorrichtung, die z.B. ein Leistungsschalter, eine Sicherung oder ein Überspannungsschutzrelais sein kann.Such a switching device or system is used in particular in load feeders such as motor starters. Switching devices for load feeders are used e.g. used in switchgear, which are usually protected in several levels against short circuits (infeed, distribution, consumer). The condition of the e.g. Motor starter characterized by the control of the switching device, such as a contactor, by the feedback of the controlled switching device state and by the notification of the state of at least one upstream protection device, which, for. may be a circuit breaker, a fuse or an overvoltage protection relay.

Das Problem liegt darin, dass, bedingt durch die typische Aufbauweise im Schaltschrank, Aufwand für die Verdrahtung dieser Signale entsteht, da je Abzweig sechs Verdrahtungsleitungen nötig sind, entweder direkt zu einer Steuerung, wie z.B. einer speicherprogrammierbaren Steuerung (SPS), für das Schaltgerät, oder zu einer Kommunikationsanschaltung, die mit der SPS über eine Kommunikationsanbindung wie beispielsweise ein Feldbussystem oder eine Punkt-zu-Punkt-Anbindung verbunden ist. Auch beim Einsatz von Kommunikationssystemen zur Verdrahtungseinsparung muss weiterhin zum Schutzgerät verdrahtet werden. Hierbei erfolgt die Meldung des Zustands der Schutzvorrichtung durch einen zusätzlichen Hilfsschalter am Schutzgerät, wodurch allerdings das Anliegen einer Spannung am Schaltgerät nicht erkannt wird. Durch den hohen Verdrahtungsaufwand sind diese herkömmlichen Lösungen nicht nur zeit- und kostenaufwendig, sondern bergen auch eine mögliche Fehlerquelle bei der Verdrahtung in sich.The problem is that, due to the typical design in the cabinet, wiring for these signals arises because each branch six wiring lines are needed, either directly to a controller, such as a programmable logic controller (PLC) for the Switching device, or to a communication interface, which is connected to the PLC via a communication connection such as a fieldbus system or a point-to-point connection. Even when using communication systems for wiring savings must continue to be wired to the protection device. In this case, the message of the state of the protection device by an additional auxiliary switch on the protection device, which, however, the concern of a voltage on the switching device is not recognized. Due to the high wiring complexity, these conventional solutions are not only time-consuming and expensive, but also harbor a possible source of error in the wiring in itself.

Aus der EP 0 774 768 A1 ist ein modulares Schützsteuersystem bekannt, der aus mehreren Modulen besteht. Das Schützsteuersystem weist ein Schützmodul, ein Überlast/Steuermodul, Kommunikationsmodul und ein Alarmmodul auf.From the EP 0 774 768 A1 a modular contactor control system is known which consists of several modules. The contactor control system comprises a contactor module, an overload / control module, communication module and an alarm module.

Aus der DE 600 03 575 T2 ist ein Schaltschütz bekannt, der ein Schütz und eine damit verbundene Schutz- und Steuerrichtung aufweist. Die Schutz- und Steuerrichtung wird mit einem Stecker an eine Leiterbahn des Schützes angeschlossen.From the DE 600 03 575 T2 is known a contactor, which has a contactor and a protective and control direction connected thereto. The protection and control direction is connected with a plug to a conductor of the contactor.

Aus der DE 102 32 375 A1 ist ein Schaltschütz bekannt. Das Schaltschütz weist einen Schützteil, ein Schutz- und Steuermodul, und ein Kommunikationsmodul auf. Das Schutz- und Steuermodul wird mit einem Steckverbinder an eine Leiterbahn des Schützes angeschlossen.From the DE 102 32 375 A1 is a contactor known. The contactor comprises a contactor, a protection and control module, and a communication module. The protection and control module is connected with a connector to a track of the contactor.

Den nächstliegenden Stand der Technik zu dieser Anmeldung bildet die FR 2 799 572 A1 . Sie beschreibt ein Schaltgerät mit mindestens einer Hauptstrombahn mit zumindest einer Kontaktschnittstelle, die zur Kontaktierung mit einer Auswerteeinheit zur Ermittlung des Zustandes einer vorgeschalteten Schutzvorrichtung vorgesehen ist, und mit zumindest einer internen elektrisch leitenden Verbindung zwischen der zumindest einen Kontaktschnittstelle und der jeweiligen Hauptstrombahn.The closest prior art to this application forms the FR 2 799 572 A1 , It describes a switching device having at least one main current path with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device, and having at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path.

Der Erfindung liegt die Aufgabe zugrunde, ein Schaltgerät anzugeben, das eine Überwachung einer dem Schaltgerät vorgeschalteten Schutzvorrichtung mit minimalem Verdrahtungsaufwand erlaubt.The invention has for its object to provide a switching device that allows monitoring of the switching device upstream protection device with minimal wiring.

Der Erfindung liegt weiter die Aufgabe zugrunde, eine Auswerteeinheit und ein Kommunikationsmodul für ein erfindungsgemäßes Schaltgerät sowie ein System aus einem derartigen Schaltgerät, einer diesem vorgeschalteten Schutzvorrichtung und einer Auswerteeinheit anzugeben.The invention is further based on the object of specifying an evaluation unit and a communication module for a switching device according to the invention as well as a system comprising such a switching device, a protective device connected upstream thereto and an evaluation unit.

Diese Aufgabe wird gelöst durch ein Schaltgerät mit zumindest einer Hauptstrombahn, mit zumindest einer Kontaktschnittstelle, die zur Kontaktierung mit einer Auswerteeinheit zur Ermittlung des Zustandes einer vorgeschalteten Schutzvorrichtung vorgesehen ist und die in einem Gehäuse des Schaltgerätes angeordnet ist, und mit zumindest einer internen elektrisch leitenden Verbindung zwischen der zumindest einen Kontaktschnittstelle und der jeweiligen Hauptstrombahn.This object is achieved by a switching device with at least one main current path, with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device and which is arranged in a housing of the switching device, and with at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path.

Die Aufgabe wird weiter gelöst durch eine Auswerteeinheit, bzw. durch ein System mit den in Anspruch 10 bis 12 bzw. 13 angegebenen Merkmalen.The object is further achieved by an evaluation unit, or by a system having the features specified in claim 10 to 12 or 13 features.

Die zumindest eine Hauptstrombahn des Schaltgeräts ist über je eine elektrisch leitende Verbindung mit einer jeweiligen Kontaktschnittstelle am Schaltgerät verbunden. An diesen Kontaktschnittstellen (Kontaktierpunkte, -flächen oder -stellen) kann dann die Auswerteeinheit, z.B. als zusätzliches Modul, angeschlossen werden, ohne dass ein weiteres Zusatzteil erforderlich ist. Hierbei kann der Zustand der Schutzvorrichtung z.B. durch eine Spannungsmessung an der zumindest einen Hauptstrombahn von der Auswerteeinheit ermittelt werden. Das Schaltgerät weist außerdem zumindest einen Führungskanal in einer Schaltkammer für mindestens ein Federelement auf.The at least one main current path of the switching device is connected via an electrically conductive connection with a respective contact interface on the switching device. The evaluation unit, eg as an additional module, can then be connected to these contact interfaces (contacting points, areas or points) without requiring a further additional part. In this case, the state of the protective device can be determined, for example, by a voltage measurement on the at least one main flow path of the evaluation unit. The switching device also has at least one guide channel in a switching chamber for at least one spring element.

Hierdurch wird auf einfachste Weise die Zusatzinformation erlangt, dass eine Spannung am Schaltgerät vorliegt. Durch diese direkte Auswertung des Schaltzustands des Schutzorgans am Schaltgerät entfällt die bisher erforderliche Verdrahtung zu einem zusätzlichen Hilfsschalter am Schutzgerät, wobei mit dem Verdrahtungsaufwand auch eine mögliche Fehlerquelle minimiert wird. Dazu ist die vorgeschlagene Lösung auch unabhängig vom räumlichen Aufbau (abzweig- oder zeilenorientiert) in einem Schaltschrank und unabhängig von der Anschlusstechnik.As a result, the additional information is obtained in the simplest way that a voltage is present at the switching device. This direct evaluation of the switching state of the protective device on the switching device eliminates the previously required wiring to an additional auxiliary switch on the relay, with the wiring effort and a possible source of error is minimized. For this purpose, the proposed solution is also independent of the spatial structure (branch or line-oriented) in a control cabinet and independent of the connection technology.

Vorteilhafte Ausführungsformen des erfindungsgemäßen Schaltgerätes sind den Unteransprüchen 2 bis 9 zu entnehmen.Advantageous embodiments of the switching device according to the invention are described in the dependent claims 2 to 9.

Im Folgenden wird die Erfindung anhand der in den Figuren dargestellten Ausführungsbeispiele näher beschrieben und erläutert. Es zeigen:

FIG 1
ein Schaltgerät mit Schnittstellen für einen Abgriff der Hauptstrombahnen,
FIG 2
ein Kommunikationsmodul mit einer integrierten Auswerteeinheit gemäß der Erfindung,
FIG 3
den relevanten Bereich eines Schaltgerätes in einer Explosionsdarstellung,
FIG 4
ein Gehäuseteil eines Schaltgerätes mit eingespritzten Leitungsteilen,
FIG 5
einen Abgriff der Hauptstrombahnen mittels Kontaktfedern.
In the following the invention will be described and explained in more detail with reference to the embodiments illustrated in the figures. Show it:
FIG. 1
a switching device with interfaces for tapping off the main current paths,
FIG. 2
a communication module with an integrated evaluation unit according to the invention,
FIG. 3
the relevant area of a switching device in an exploded view,
FIG. 4
a housing part of a switching device with injected line parts,
FIG. 5
a tap of the main flow paths by means of contact springs.

Fig 1 zeigt ein Schaltgerät 1 mit Hauptstrombahnen 6 und Schnittstellen 2, 3 sowie einer mechanischen Ankoppelstelle 4 in einer Frontseite des Gehäuses 5. Die Kontaktschnittstellen 2 sind mit den Hauptstrombahnen 6 elektrisch leitend verbunden, so dass eine an die Schnittstellen 2 angeschlossene Auswerteeinheit den Zustand einer dem Schaltgerät vorgeschalteten Schutzvorrichtung z.B. über eine Spannungsmessung ermitteln kann, wodurch zum einen ein Hilfsschalter an der Schutzvorrichtung mit zugehöriger Verdrahtung nicht mehr benötigt wird und zum anderen die Zusatzinformation über ein Anliegen der Spannung am Schaltgerät 1 vorliegt. Über die Schnittstellen 3 für einen Spulenanschluss des Schaltgerätes 1 wird das Schaltgerät 1 beispielsweise über eine speicherprogrammierbare Steuerung (SPS) angesteuert. Dabei kann die Kommunikation mit der SPS zur weiteren Minimierung des Verdrahtungsaufwandes auch über ein Kommunikationsmodul 7 erfolgen, das mittels einer mechanischen Ankoppelstelle 4 mit dem Schaltgerät 1 verbunden werden kann. In der Darstellung ist das Schaltgerät 1 als Schütz ausgeführt, die vorgeschaltete Schutzvorrichtung ist typischerweise ein Leistungsschalter, der mit dem Schütz über die Hauptstrombahnen 6 verbunden ist. Fig. 1 shows a switching device 1 with main circuits 6 and interfaces 2, 3 and a mechanical Ankoppelstelle 4 in a front side of the housing 5. The contact interfaces 2 are electrically connected to the main current paths 6, so that an interface connected to the 2 evaluation unit the state of the switching device upstream protection device can determine, for example via a voltage measurement, which on the one hand, an auxiliary switch on the protection device with associated wiring is no longer needed and on the other hand, the additional information on a concern of the voltage at the switching device 1 is present. About the interfaces 3 for a coil terminal of the switching device 1, the switching device 1 is driven, for example via a programmable logic controller (PLC). In this case, the communication with the PLC to further minimize the wiring effort can also be done via a communication module 7, which can be connected by means of a mechanical Ankoppelstelle 4 with the switching device 1. In the illustration, the switching device 1 is designed as a contactor, the upstream protection device is typically a circuit breaker, which is connected to the contactor via the main current paths 6.

Fig 2 zeigt ein Kommunikationsmodul 7 mit Kontakten 8, 9 zum Aufstecken auf ein Schaltgerät 1 mit Kontaktschnittstellen wie in Fig 1 dargestellt. In das Kommunikationsmodul 7 ist eine Auswerteeinheit zur Ermittlung des Zustandes einer dem Schütz 1 vorgeschalteten Schutzvorrichtung integriert. Die Kontakte 8 kontaktieren die Schnittstelle 3 für den Spulenanschluss des Schützes 1, die Kontakte 9 verbinden die Kontaktschnittstellen 2 für den Abgriff der Hauptstrombahnen 6 mit der im Kommunikationsmodul 7 integrierten Auswerteeinheit. Fig. 2 shows a communication module 7 with contacts 8, 9 for attachment to a switching device 1 with contact interfaces as in Fig. 1 shown. In the communication module 7, an evaluation unit for determining the state of the contactor 1 upstream protection device is integrated. The contacts 8 contact the interface 3 for the coil terminal of the contactor 1, the contacts 9 connect the contact interfaces 2 for the tapping of the main current paths 6 with the integrated in the communication module 7 evaluation.

Das Kommunikationsmodul 7 kann mittels der Kontakte 8, 9 einfach auf das Schaltgerät 1 aufgesteckt werden. Die mechanische Verbindung erfolgt über die mechanische Ankoppelstelle 4 des Schützes.The communication module 7 can be easily attached to the switching device 1 by means of the contacts 8, 9. The mechanical connection is made via the mechanical coupling point 4 of the contactor.

Fig 3 zeigt den für die Erfindung relevanten Teil eines Schaltgerätes 1 in einer Explosionsdarstellung, wobei hier eine andere Ausführungsform eines Schaltgerätes 1 als in Fig 1 dargestellt ist. Im oberen Bereich der Figur ist die Frontseite des Gehäuses 5 mit den Schnittstellen 2, 3 und der mechanischen Ankoppelstelle 4 zu sehen. Im Gehäuse 5 sind als Teil der elektrisch leitenden Verbindung zwischen Hauptstrombahnen 6 und Kontaktschnittstellen 2 eingespritzte Leitungsteile 10 vorgesehen. Der Abgriff der Hauptstrombahnen 6 erfolgt über Federelemente, beispielsweise eine Kontaktfeder 11 oder ein federnder Stift 12, an den Festschaltstücken 14 der Hauptstrombahnen 6. Die Federelemente 11, 12 schaffen dabei zugleich die elektrische Verbindung und einen Toleranzausgleich zwischen den Festschaltstücken 14 und den eingespritzten Leitungsteilen 10. Gehalten werden die Federelemente 11, 12 dabei durch Führungskanäle 13 in der Schaltkammer des Schaltgerätes 1. Die Montage erfolgt dabei einfach durch Stecken der Federelemente 11, 12 in die Führungskanäle 13 und durch Aufstecken der Schützabdeckung des Gehäuses 5 auf die Schaltkammer, so dass sie die Festschaltstücke 14 der Hauptstrombahnen 6 kontaktieren. In einer weiteren Ausführung können die Federelemente 11, 12 auch mit den eingespritzten Leitungsteilen 10 mechanisch verbunden sein. Fig. 3 shows the relevant to the invention part of a switching device 1 in an exploded view, in which case another embodiment of a switching device 1 as in Fig. 1 is shown. In the upper part of the figure, the front side of the housing 5 with the interfaces 2, 3 and the mechanical coupling point 4 can be seen. In the housing 5 2 injected line parts 10 are provided as part of the electrically conductive connection between the main current paths 6 and contact interfaces. The tap of the main flow paths 6 via spring elements, such as a contact spring 11 or a resilient pin 12, the Festschaltstücken 14 of the main flow paths 6. The spring elements 11, 12 at the same time create the electrical connection and a tolerance compensation between the Festschaltstücken 14 and the injected line parts 10th The assembly is effected simply by inserting the spring elements 11, 12 in the guide channels 13 and by attaching the contactor cover of the housing 5 to the switching chamber, so that they the fixed contact pieces 14 of the main current paths 6 contact. In a further embodiment, the spring elements 11, 12 may also be mechanically connected to the injected line parts 10.

Fig 4 zeigt die Schützabdeckung des Gehäuses 5 von der im zusammengebauten Zustand im Inneren des Schaltgerätes 1 liegenden Seite, so dass die eingespritzten Leitungsteile 10 gut zu erkennen sind. Daneben sieht man wieder die mechanische Ankoppelstelle 4 und in dieser Ansicht nur eine der Schnittstellen 3 für den Spulenanschluss. Fig. 4 shows the contactor cover of the housing 5 from the lying in the assembled state in the interior of the switching device 1 side, so that the injected line parts 10 are clearly visible. In addition, one sees again the mechanical coupling point 4 and in this view only one of the interfaces 3 for the coil connection.

Fig 5 zeigt einen Abgriff der Hauptstrombahnen 6 an den Festschaltstücken 14 mittels Kontaktfedern 11. In diesem Ausführungsbeispiel sind keine eingespritzten Leitungsteile 10 im Gehäuse 5 vorhanden, die Kontaktfedern 11 stellen eine direkte elektrisch leitende Verbindung zwischen den Kontaktschnittstellen 2 und den Festschaltstücken 14 her. Anstelle der Kontaktfedern 11 können in dieser Ausführungsform auch Kontaktstifte verwendet werden, bei denen die Kontaktierung über die Klemmkraft statt der Federkraft (Toleranzausgleich erfolgt durch eine Bohrung im Festschaltstück) an den Festschaltstücken 14 erfolgt. Andere Ausführungsformen für die elektrische Verbindung können z.B. durch Schweißen, Einpressen oder Klemmen realisiert werden. Fig. 5 shows a tap of the main current paths 6 at the Festschaltstücken 14 by means of contact springs 11. In this embodiment, no injected line parts 10 are present in the housing 5, the contact springs 11 establish a direct electrically conductive connection between the contact interfaces 2 and the Festschaltstücken 14 ago. Instead of the contact springs 11, contact pins can also be used in this embodiment, in which the contacting via the clamping force instead of the spring force (tolerance compensation takes place through a hole in Festschaltstück) takes place on the Festschaltstücken 14. Other embodiments for the electrical connection can be realized, for example, by welding, press-fitting or clamping.

Zusammenfassend betrifft die Erfindung ein Schaltgerät mit zumindest einer Hauptstrombahn und zumindest einer Kontaktschnittstelle, die über zumindest eine interne elektrisch leitende Verbindung miteinander verbunden sind. Um eine Überwachung einer dem Schaltgerät vorgeschalteten Schutzvorrichtung mit minimalem Verdrahtungsaufwand zu ermöglichen, wird ein Schaltgerät vorgeschlagen mit zumindest einer Hauptstrombahn, mit zumindest einer Kontaktschnittstelle, die zur Kontaktierung mit einer Auswerteeinheit zur Ermittlung des Zustandes einer vorgeschalteten Schutzvorrichtung vorgesehen ist und die in einem Gehäuse des Schaltgerätes angeordnet ist, und mit zumindest einer internen elektrisch leitenden Verbindung zwischen der zumindest einen Kontaktschnittstelle und der jeweiligen Hauptstrombahn. Durch die direkte Auswertung des Schaltzustands des Schutzorgans am Schaltgerät entfällt die bisher erforderliche Verdrahtung zu einem zusätzlichen Hilfsschalter am Schutzgerät, wobei mit dem Verdrahtungsaufwand auch eine mögliche Fehlerquelle minimiert wird.In summary, the invention relates to a switching device having at least one main flow path and at least one contact interface, which are connected to each other via at least one internal electrically conductive connection. In order to enable monitoring of the protective device upstream of the switching device with minimal wiring effort, a switching device is proposed with at least one main current path, with at least one contact interface, which is provided for contacting with an evaluation unit for determining the state of an upstream protection device and in a housing of the switching device is arranged, and with at least one internal electrically conductive connection between the at least one contact interface and the respective main flow path. The direct evaluation of the switching state of the protective device on the switching device eliminates the previously required wiring to an additional auxiliary switch on the protection device, with the wiring effort and a possible source of error is minimized.

Claims (7)

  1. Switching device (1) comprising at least one main current path (6), comprising at least one contact interface (2) which is provided for making contact with an evaluation unit for ascertaining the state of a protection apparatus which is connected upstream, and which contact interface (2) is arranged in a housing (5) of the switching device (1), comprising at least one internal electrically conductive connection between the at least one contact interface (2) and the respective main current path (6), characterized in that at least one guide channel (13) is provided in a switching chamber of the switching device (1) for at least one spring element (11, 12), wherein at least one part of the at least one internal electrically conductive connection for tapping the respective main current path (6) is designed as spring element (11, 12).
  2. Switching device according to Claim 1, wherein a fixed switching piece (14) of the respective main current path (6) makes contact with the at least one internal electrically conductive connection for tapping the respective main current path (6).
  3. Switching device according to Claim 1 or 2, wherein at least one part of the at least one internal electrically conductive connection is designed as a line part (10) which is injection-moulded into the housing (5).
  4. Switching device according to Claims 1 and 3, wherein the at least one spring element (11, 12) and the respective injection-moulded line part (10) are mechanically connected to one another.
  5. Switching device according to one of the preceding claims, wherein the at least one contact interface (2) is provided on a front side of the switching device (1).
  6. Switching device according to one of the preceding claims, wherein the housing (5) is designed in such a way that the evaluation unit can be electrically connected to the at least one contact interface (2) and can be mechanically connected to the switching device (1).
  7. Switching device according to Claim 6, wherein the evaluation unit can be integrated into a communication module (7) which can be connected to the switching device (1) and to a controller for the switching device (1) by means of at least one communication link in each case, wherein the at least one communication link to the switching device (1) is designed as at least one further contact interface (3) in the housing (5) of the switching device (1).
EP06805333.9A 2006-09-21 2006-09-21 Switching device with integrated main current path tap Active EP2064721B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2006/001682 WO2008034395A1 (en) 2006-09-21 2006-09-21 Switching device with integrated main current path tap

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EP2064721A1 EP2064721A1 (en) 2009-06-03
EP2064721B1 true EP2064721B1 (en) 2017-03-22

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EP (1) EP2064721B1 (en)
DE (1) DE112006004149A5 (en)
WO (1) WO2008034395A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2590198A1 (en) 2011-11-02 2013-05-08 Eaton Industries GmbH Circuit breaker with internal voltage measurement
EP2590199A1 (en) 2011-11-02 2013-05-08 Eaton Industries GmbH Circuit breaker with at least one voltage tap contact
CN112103148A (en) * 2020-09-27 2020-12-18 深圳曼顿科技有限公司 Single-pole circuit breaker

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
AT364419B (en) * 1979-10-02 1981-10-27 Naimer H L COMPUTER CONTROLLED SWITCHGEAR
US5652420A (en) 1995-11-14 1997-07-29 Eaton Corporation Modular contactor control system
WO1998005052A1 (en) * 1996-07-29 1998-02-05 Sundstrand Corporation Modular contactor
ES2141665B1 (en) * 1997-10-06 2000-11-16 Ge Power Controls Iberica S L ADAPTER DEVICE FOR CONTROL AND CONTROL OF THE COIL OF A CONTACTOR.
US6064289A (en) * 1999-03-12 2000-05-16 Eaton Corporation Electromagnetic contactor with overload relay
FR2799572B1 (en) 1999-10-11 2001-12-21 Schneider Electric Ind Sa CONTACTOR-CIRCUIT-BREAKER
FR2818435B1 (en) * 2000-12-18 2003-10-31 Schneider Electric Ind Sa ASSEMBLY OF ELECTRICAL DEVICES FOR CONTROLLING POWER DEVICES
FR2827703B1 (en) 2001-07-18 2004-05-14 Schneider Electric Ind Sa MULTIPOLAR CONTACTOR-CIRCUIT-BREAKER APPARATUS
FR2832559B1 (en) * 2001-11-16 2004-01-16 Schneider Electric Ind Sa CONTROL AND PROTECTION MODULE OF A SWITCHING DEVICE
FR2875373B1 (en) * 2004-09-13 2007-06-22 Schneider Electric Ind Sas MODULAR ELECTRICAL CONTROL SYSTEM

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WO2008034395A1 (en) 2008-03-27
DE112006004149A5 (en) 2009-09-03
EP2064721A1 (en) 2009-06-03

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