EP2471084A1 - Attachment module for detection of a switching state of an electromagnetic switching device - Google Patents

Attachment module for detection of a switching state of an electromagnetic switching device

Info

Publication number
EP2471084A1
EP2471084A1 EP10732992A EP10732992A EP2471084A1 EP 2471084 A1 EP2471084 A1 EP 2471084A1 EP 10732992 A EP10732992 A EP 10732992A EP 10732992 A EP10732992 A EP 10732992A EP 2471084 A1 EP2471084 A1 EP 2471084A1
Authority
EP
European Patent Office
Prior art keywords
switching
attachment module
plunger
state
electromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10732992A
Other languages
German (de)
French (fr)
Other versions
EP2471084B1 (en
Inventor
Michaela Koller
Helmut Kraus
Manuel Geitner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2471084A1 publication Critical patent/EP2471084A1/en
Application granted granted Critical
Publication of EP2471084B1 publication Critical patent/EP2471084B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/08—Indicators; Distinguishing marks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/465—Self-contained, easily replaceable microswitches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators

Definitions

  • Attachment module for detecting a switching state of an electromagnetic switching device
  • the invention relates to an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection to a switching element, in particular a microswitch.
  • Electromagnetic switching devices in the context of the present invention are contactors, disconnectors, power relays and circuit breakers.
  • electromagnetic switching devices in particular for contactors, it is necessary in a large number of applications to detect the actual switching state of the electromagnetic switching device, in contrast to a driving state of the electromagnetic switching device, in order to be able to evaluate it elsewhere.
  • a switching state detection takes place by means of a detection device.
  • a mechanical switching contact is arranged in the housing, which changes its switching state when transferring the plunger from one to the other end position.
  • the switching contact is connected via lines with an evaluation device, so that the switching position of the
  • the detection device is its own, from the electromagnetic switching different device, for example, a so-called auxiliary switch.
  • a detection device for detecting the switching state of an electromagnetic switching device which has a housing in which a plunger is movably mounted.
  • the plunger is movable between two mechanical end positions, wherein the end position of the plunger corresponds to the switching state of the electromagnetic switching device.
  • the end position of the plunger corresponds to the switching state of the electromagnetic switching device.
  • Sensor device is arranged, from which it can be detected, in which of the end positions, the plunger is located, and from which a corresponding herewith electrical signal can be emitted.
  • the sensor device is designed such that the position of the plunger can be detected by it, without touching the plunger.
  • a tapping connection is also arranged, which is accessible from outside the housing and over which the electrical signal emitted by the sensor device can be tapped off as such.
  • a conditioning circuit is arranged on the housing, which processes the electrical signal emitted by the sensor device into a message and outputs the message via a communication connection.
  • Switching state in which the contacts are welded in the electromagnetic switching device, can not be reproduced via a switching state indicator.
  • the object of the present invention is to provide an attachment module for detecting a switching state of an electromagnetic switching device, which is designed such that there are three possible switching states of the
  • an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection with a switching element, in particular a microswitch.
  • the invention is characterized in that the plunger has a snap hook at the other end, which communicates three possible switching positions of the electromagnetic switching device to the microswitch.
  • the electromagnetic switching device may be a contactor, which has a coil which can be acted upon by a switching current IS. When the switching current IS is applied to the coil, it attracts an armature. If the switching current IS is interrupted, the armature moves away from the coil due to a restoring spring force. The armature is connected to a plunger.
  • the plunger is also attracted to the coil. Due to the movement of the plunger, at least one load contact is closed so that a load current IL can flow. Conversely, when the switching current IS is interrupted, the load contact is opened again.
  • the electromagnetic switching device may for example also be a power switch.
  • the switching current IS is identical to the load current IL.
  • the coil in this case attracts the armature when the load current IL becomes too large. Due to the attraction of the anchor becomes one
  • the position of the plunger is designed such that it is independent of the specific configuration of the electromagnetic switching device with the state of the load contact and thus with the switching state of the electromagnetic switching device cor- respondiert.
  • the plunger three possible switching positions of the electromagnetic switching device, the input and exhibition and the switching position in welded contacts indicate. Accordingly, the switching position of the contactor is transmitted via the plunger as mechanical Wegsungsan- display directly into the module. At the switch position indication there is a nose, which thus at the
  • the contactor a switching element, in particular a micro-switch, actuated in the attachment module.
  • the drive signal of the respective other contactor is guided via the switching element in the attachment module of the first contactor.
  • the locking no longer takes place via auxiliary contacts of the contactor, but via the switching element in the module.
  • the devices are also pre-assembled in total, so that the potential for errors can be minimized.
  • the plunger is connected at one end to the microswitch and at the other end has a snap hook, which occupies three different positions relative to a reference edge to the different switching states, the on and off state and the Display switching status with welded contacts.
  • the attachment module has a communication cable, which enables transmission of activation signals between two attachment modules.
  • FIG. 1 is a sectional view of an inventive attachment module for detecting a switching state of an electromagnetic switching device
  • FIG. 2 shows a sectional view of the attachment module according to the invention according to FIG. 1 with communication cable;
  • FIG. Fig. 3 is a schematic representation of the three different switching positions of the snap hook for the three different states of the electromagnetic switching device.
  • Fig. 1 shows an inventive attachment module 1, the one
  • Housing upper part 2 which is fastened via locking elements 3 on the outer housing 4. From the upper housing part 2 protrudes into the housing interior, a guide unit 5, in which a plunger 6 is mounted.
  • the attachment module 1 sits on a protective device (not shown), preferably a contactor, wherein the attachment module 1 and the protective device via a snap hook 7 are in operative connection with each other when it comes to the triggering process.
  • the plunger 6 is actuated during the tripping operation via a spring element 8 a switching element 9.
  • the switching element 9 has connection elements 11 for printed circuit boards.
  • plug connections 12 and further electrical components 13 are arranged.
  • Fig. 2 shows the attachment module 1 in a particularly advantageous embodiment with integrated communication cable 14, the transmission of drive signals between two Attachment modules allows.
  • the drive signal of one contactor can be guided via the switching element in the attachment module of the other contactor.
  • FIG. 3 shows that the three possible switching states, the on and off state and the switching state in welded contacts in the electromagnetic switching device, shown that are communicated via the snap hook 7 on the plunger 6 the switching element 9.
  • the snap hook 7 changes its position relative to a reference edge 15 corresponding to the three possible switching positions in the electromagnetic switching device.
  • FIG. 3 shows that the snap-action hook 7 assumes its position relative to the reference edge 15 in accordance with the direction of movement 16 in three defined positions 17, 18, 19 and thereby indicates the on and off state and the switching state in the case of welded contacts.
  • the present invention offers two key advantages. On the one hand, the three possible switching positions of an electromagnetic switching device, the on and off state and the switching state in welded contacts are precisely displayed by the attachment module according to the invention. On the other hand, no auxiliary contact is needed for the mutual locking of two electromagnetic switching devices, so that the wiring effort is reduced and the auxiliary contact can be used elsewhere.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

The invention relates to an attachment module for detection of a switching state of an electromagnetic switching device which has a switch housing in which an operating means is arranged, which is in the form of a plunger (6) and one end of which is operatively connected to a switching element (9), in particular a microswitch. The invention is distinguished in that the plunger (6) has a snap-action hook (7) at the other end, which communicates the three possible switch positions of the electromagnetic switching device to the switching element (9).

Description

Beschreibung description
Aufsatzmodul zum Erfassen eines Schaltzustandes eines elektromagnetischen Schaltgeräts Attachment module for detecting a switching state of an electromagnetic switching device
Die Erfindung betrifft ein Aufsatzmodul zum Erfassen eines Schaltzustandes eines elektromagnetischen Schaltgeräts, das ein Schaltergehäuse aufweist, in welchem ein Betätiger angeordnet ist, der als Stößel ausgebildet ist und an einem Ende in Wirkverbindung zu einem Schaltelement, insbesondere einem Mikroschalter steht. The invention relates to an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection to a switching element, in particular a microswitch.
Elektromagnetische Schaltgeräte im Sinne der vorliegenden Erfindung sind Schütze, Trennschalter, Leistungsrelais sowie Leistungsschalter. Für derartige elektromagnetische Schaltgeräte, insbesondere für Schütze, ist es bei einer Vielzahl von Anwendungsfällen erforderlich, den tatsächlichen Schaltzustand des elektromagnetischen Schaltgeräts, im Gegensatz zu einem Ansteuerzustand des elektromagnetischen Schaltgeräts, zu erfassen, um ihn anderweitig auswerten zu können. Electromagnetic switching devices in the context of the present invention are contactors, disconnectors, power relays and circuit breakers. For such electromagnetic switching devices, in particular for contactors, it is necessary in a large number of applications to detect the actual switching state of the electromagnetic switching device, in contrast to a driving state of the electromagnetic switching device, in order to be able to evaluate it elsewhere.
Die Information, in welcher Schaltstellung sich ein elektromagnetisches Schaltgerät, insbesondere ein Schütz, befindet, wurde bisher durch eine Stern-Dreieckschaltung bewerkstel- ligt. Die elektrische Verriegelung zweier gekoppelter Schütze wurde bisher über Hilfskontakte realisiert, die ebenso wie die Stern-Dreieckschaltung verdrahtet werden müssen. The information in which switching position an electromagnetic switching device, in particular a contactor, is located, has hitherto been accomplished by a star-delta connection. The electrical interlocking of two coupled contactors has hitherto been realized via auxiliary contacts, which must be wired in the same way as the star-delta connection.
Im Stand der Technik erfolgt eine derartige Schaltzustandser- fassung mittels einer Erfassungseinrichtung. Hierbei ist im Gehäuse ein mechanischer Schaltkontakt angeordnet, der beim Überführen des Stößels von der einen in die andere Endstellung seinen Schaltzustand wechselt. Der Schaltkontakt wird über Leitungen mit einer Auswertungseinrichtung verbunden, so dass von der Auswertungseinrichtung die Schaltstellung desIn the prior art, such a switching state detection takes place by means of a detection device. Here, a mechanical switching contact is arranged in the housing, which changes its switching state when transferring the plunger from one to the other end position. The switching contact is connected via lines with an evaluation device, so that the switching position of the
Schaltkontakts und damit der Schaltzustand des elektromagnetischen Schaltgeräts erfassbar sind. Meist ist die Erfassungseinrichtung eine eigene, vom elektromagnetischen Schalt- gerät verschiedene Einrichtung, beispielsweise ein so genannter Hilfsschalter . Switching contact and thus the switching state of the electromagnetic switching device can be detected. In most cases, the detection device is its own, from the electromagnetic switching different device, for example, a so-called auxiliary switch.
Dazu ist aus der DE 10 2007 002 176 Al eine Erfassungsein- richtung zum Erfassen des Schaltzustands eines elektromagnetischen Schaltgeräts bekannt, die ein Gehäuse aufweist, in welchem ein Stößel beweglich gelagert ist. Der Stößel ist zwischen zwei mechanischen Endstellungen bewegbar, wobei die Endstellung des Stößels mit dem Schaltzustand des elektromag- netischen Schaltgeräts korrespondiert. Im Gehäuse ist eineFor this purpose, from DE 10 2007 002 176 Al a detection device for detecting the switching state of an electromagnetic switching device is known, which has a housing in which a plunger is movably mounted. The plunger is movable between two mechanical end positions, wherein the end position of the plunger corresponds to the switching state of the electromagnetic switching device. In the case is a
Sensoreinrichtung angeordnet, von der erfassbar ist, in welcher der Endstellungen sich der Stößel befindet, und von der ein hiermit korrespondierendes elektrisches Signal abgebbar ist. Die Sensoreinrichtung ist derart ausgebildet, dass die Stellung des Stößels von ihr erfassbar ist, ohne den Stößel zu berühren. Am Gehäuse ist zudem ein Abgreifanschluss angeordnet, der von außerhalb des Gehäuses zugänglich ist und über den das von der Sensoreinrichtung abgegebene elektrische Signal als solches unmittelbar abgreifbar ist. Zudem ist am Gehäuse eine Aufbereitungsschaltung angeordnet, die das von der Sensoreinrichtung abgegebene elektrische Signal in eine Nachricht aufbereitet und die Nachricht über einen Kommunika- tionsanschluss ausgibt. Nachteilig am Stand der Technik ist, dass nur zwei unterschiedliche Schaltzustände, der Ein- und der Auszustand, über die Erfassungseinrichtung angezeigt werden können. Der Sensor device is arranged, from which it can be detected, in which of the end positions, the plunger is located, and from which a corresponding herewith electrical signal can be emitted. The sensor device is designed such that the position of the plunger can be detected by it, without touching the plunger. On the housing, a tapping connection is also arranged, which is accessible from outside the housing and over which the electrical signal emitted by the sensor device can be tapped off as such. In addition, a conditioning circuit is arranged on the housing, which processes the electrical signal emitted by the sensor device into a message and outputs the message via a communication connection. A disadvantage of the prior art is that only two different switching states, the on and the off state, can be displayed via the detection device. Of the
Schaltzustand, in welchem die Kontakte im elektromagnetischen Schaltgerät verschweißt sind, kann bisher nicht über eine Schaltzustandsanzeige wiedergegeben werden. Switching state, in which the contacts are welded in the electromagnetic switching device, can not be reproduced via a switching state indicator.
Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, ein Aufsatzmodul zum Erfassen eines Schaltzustands eines elektromagnetischen Schaltgeräts zu schaffen, das derart aus- gebildet ist, dass es drei mögliche Schaltzustände des Accordingly, the object of the present invention is to provide an attachment module for detecting a switching state of an electromagnetic switching device, which is designed such that there are three possible switching states of the
Schaltgeräts, den Ein- und Auszustand sowie den Schaltzustand bei verschweißten Kontakten, wiedergibt. Diese Aufgabe wird durch ein Aufsatzmodul mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind der Gegenstand der abhängigen Ansprüche. Switching device, the on and off state and the switching state in welded contacts, reproduces. This object is achieved by an attachment module having the features of patent claim 1. Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.
Diese Aufgabe wird durch ein Aufsatzmodul zum Erfassen eines Schaltzustands eines elektromagnetischen Schaltgeräts gelöst, das ein Schaltergehäuse aufweist, in welchem ein Betätiger angeordnet ist, der als Stößel ausgebildet ist und an einem Ende in Wirkverbindung zu einem Schaltelement, insbesondere einem Mikroschalter steht. Die Erfindung zeichnet sich dadurch aus, dass der Stößel am anderen Ende einen Schnapphaken aufweist, der drei mögliche Schaltstellungen des elektromag- netischen Schaltgeräts an den Mikroschalter kommuniziert. Das elektromagnetische Schaltgerät kann ein Schütz sein, der eine Spule aufweist, die mit einem Schaltstrom IS beaufschlagbar ist. Wenn die Spule mit dem Schaltstrom IS beaufschlagt wird, zieht sie einen Anker an. Wird der Schaltstrom IS unterbro- chen, bewegt sich der Anker auf Grund einer rücktreibenden Federkraft von der Spule weg. Mit dem Anker ist ein Stößel verbunden. Zusammen mit dem Anker wird daher auch der Stößel von der Spule angezogen. Auf Grund der Bewegung des Stößels wird mindestens ein Lastkontakt geschlossen, so dass ein Laststrom IL fließen kann. Umgekehrt wird beim Unterbrechen des Schaltstroms IS der Lastkontakt wieder geöffnet. This object is achieved by an attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger and is at one end in operative connection with a switching element, in particular a microswitch. The invention is characterized in that the plunger has a snap hook at the other end, which communicates three possible switching positions of the electromagnetic switching device to the microswitch. The electromagnetic switching device may be a contactor, which has a coil which can be acted upon by a switching current IS. When the switching current IS is applied to the coil, it attracts an armature. If the switching current IS is interrupted, the armature moves away from the coil due to a restoring spring force. The armature is connected to a plunger. Therefore, together with the armature, the plunger is also attracted to the coil. Due to the movement of the plunger, at least one load contact is closed so that a load current IL can flow. Conversely, when the switching current IS is interrupted, the load contact is opened again.
Alternativ kann das elektromagnetische Schaltgerät beispielsweise auch ein Leistungsschalter sein. In diesem Fall ist der Schaltstrom IS mit dem Laststrom IL identisch. Die Spule zieht in diesem Fall den Anker an, wenn der Laststrom IL zu groß wird. Auf Grund des Anziehens des Ankers wird ein Alternatively, the electromagnetic switching device may for example also be a power switch. In this case, the switching current IS is identical to the load current IL. The coil in this case attracts the armature when the load current IL becomes too large. Due to the attraction of the anchor becomes one
Schaltschloss freigegeben, das den Stößel in eine Stellung bewegt, in welcher der Lastkontakt geöffnet bleibt. Die Stel- lung des Stößels ist dabei so ausgebildet, dass sie unabhängig von der konkreten Ausgestaltung des elektromagnetischen Schaltgeräts mit dem Zustand des Lastkontakts und damit mit dem Schaltzustand des elektromagnetischen Schaltgeräts kor- respondiert. Erfindungsgemäß kann der Stößel drei mögliche Schaltstellungen des elektromagnetischen Schaltgeräts, die Ein- und Ausstellung sowie die Schaltstellung bei verschweißten Kontakten, anzeigen. Demgemäß wird die Schaltstellung des Schützes über den Stößel als mechanische Schaltstellungsan- zeige direkt in das Modul weitergegeben. An der Schaltstel- lungsanzeige befindet sich eine Nase, welche somit beim Switch lock released, which moves the plunger in a position in which the load contact remains open. The position of the plunger is designed such that it is independent of the specific configuration of the electromagnetic switching device with the state of the load contact and thus with the switching state of the electromagnetic switching device cor- respondiert. According to the invention, the plunger three possible switching positions of the electromagnetic switching device, the input and exhibition and the switching position in welded contacts indicate. Accordingly, the switching position of the contactor is transmitted via the plunger as mechanical Schaltstellungsungsan- display directly into the module. At the switch position indication there is a nose, which thus at the
Schalten des Schützes ein Schaltelement, insbesondere einen Mikroschalter, im Aufsatzmodul betätigt. Um die gegenseitige Verriegelung zweier elektromagnetischer Schaltgeräte, insbesondere zweier Schütze, über dieses Schaltelement zu realisieren, wird das Ansteuersignal des jeweiligen anderen Schützes über das Schaltelement im Aufsatzmodul des ersten Schützes geführt. Vorteilhafterweise erfolgt somit die Verriege- lung nicht mehr über Hilfskontakte des Schützes, sondern über das Schaltelement im Modul. Damit sind die Vorteile verbunden, dass der Hilfskontakt im Schütz dem Kunden zur freien Verfügung steht, und er keine Verdrahtung mehr vornehmen muss. Die Geräte sind außerdem insgesamt vorkonfektioniert, wodurch das Fehlerpotential minimiert werden kann. Switching the contactor a switching element, in particular a micro-switch, actuated in the attachment module. In order to realize the mutual locking of two electromagnetic switching devices, in particular two contactors, via this switching element, the drive signal of the respective other contactor is guided via the switching element in the attachment module of the first contactor. Advantageously, therefore, the locking no longer takes place via auxiliary contacts of the contactor, but via the switching element in the module. This has the advantages that the auxiliary contact in the contactor is at the customer's free disposal, and he no longer has to make any wiring. The devices are also pre-assembled in total, so that the potential for errors can be minimized.
Es ist erfindungsgemäß vorgesehen, dass der Stößel an seinem einen Ende mit dem Mikroschalter in Verbindung steht und am anderen Ende einen Schnapphaken aufweist, der drei unter- schiedliche Stellungen relativ zu einer Bezugskante einnimmt, um die unterschiedlichen Schaltzustände, den Ein- und Auszustand sowie den Schaltzustand bei verschweißten Kontakten anzuzeigen . In einer besonders vorteilhaften Ausführungsform weist das Aufsatzmodul ein Kommunikationskabel auf, das eine Übertragung von Ansteuersignalen zwischen zwei Aufsatzmodulen ermöglicht. Dabei ist des Weiteren vorteilhaft vorgesehen, dass bei der gegenseitigen Verriegelung zweier miteinander gekop- pelter elektromagnetischer Schaltgeräte, insbesondere zweier Schütze, das Ansteuersignal des einen Schützes über das It is provided according to the invention that the plunger is connected at one end to the microswitch and at the other end has a snap hook, which occupies three different positions relative to a reference edge to the different switching states, the on and off state and the Display switching status with welded contacts. In a particularly advantageous embodiment, the attachment module has a communication cable, which enables transmission of activation signals between two attachment modules. In this case, it is furthermore advantageously provided that in the mutual locking of two mutually coupled electromagnetic switching devices, in particular two contactors, the control signal of the one contactor on the
Schaltelement im Aufsatzmodul des anderen Schützes geführt ist . Weitere Vorteile und Ausführungen der Erfindung werden nachfolgend anhand von Ausführungsbeispielen sowie anhand der Zeichnung erläutert Switching element is guided in the attachment module of the other contactor. Further advantages and embodiments of the invention will be explained below with reference to embodiments and with reference to the drawing
Dabei zeigen schematisch: Here are shown schematically:
Fig. 1 in einer Schnittdarstellung ein erfindungsgemäßes Aufsatzmodul zum Erfassen eines Schaltzustandes eines elektro- magnetischen Schaltgeräts; 1 is a sectional view of an inventive attachment module for detecting a switching state of an electromagnetic switching device;
Fig. 2 in einer Schnittdarstellung das erfindungsgemäße Aufsatzmodul nach Fig. 1 mit Kommunikationskabel; Fig. 3 in einer schematischen Darstellung die drei unterschiedlichen Schaltstellungen des Schnapphakens für die drei unterschiedlichen Zustände des elektromagnetischen Schaltgeräts . Fig. 1 zeigt ein erfindungsgemäßes Aufsatzmodul 1, das einFIG. 2 shows a sectional view of the attachment module according to the invention according to FIG. 1 with communication cable; FIG. Fig. 3 is a schematic representation of the three different switching positions of the snap hook for the three different states of the electromagnetic switching device. Fig. 1 shows an inventive attachment module 1, the one
Gehäuseoberteil 2 aufweist, das über Rastelemente 3 am Außengehäuse 4 befestigt ist. Vom Gehäuseoberteil 2 ragt ins Gehäuseinnere eine Führungseinheit 5, in welcher ein Stößel 6 gelagert ist. Das Aufsatzmodul 1 sitzt auf einem Schutzgerät (nicht dargestellt) , vorzugsweise einem Schütz auf, wobei das Aufsatzmodul 1 und das Schutzgerät über einen Schnapphaken 7 miteinander in Wirkverbindung stehen, wenn es zum Auslösevorgang kommt. Der Stößel 6 betätigt beim Auslösevorgang über ein Federelement 8 einen Schaltelement 9. Die Übertragung vom Stößel 6 auf die Federelemente 8 erfolgt über einen hakenähnlichen Vorsprung 10 am Stößel 6. Das Schaltelement 9 weist Anschlusselemente 11 für Leiterplatinen auf. Im Aufsatzmodul 1 sind außerdem Steckanschlüsse 12 sowie weitere elektrische Bauelemente 13 angeordnet. Housing upper part 2 which is fastened via locking elements 3 on the outer housing 4. From the upper housing part 2 protrudes into the housing interior, a guide unit 5, in which a plunger 6 is mounted. The attachment module 1 sits on a protective device (not shown), preferably a contactor, wherein the attachment module 1 and the protective device via a snap hook 7 are in operative connection with each other when it comes to the triggering process. The plunger 6 is actuated during the tripping operation via a spring element 8 a switching element 9. The transmission from the plunger 6 to the spring elements 8 via a hook-like projection 10 on the plunger 6. The switching element 9 has connection elements 11 for printed circuit boards. In attachment module 1 also plug connections 12 and further electrical components 13 are arranged.
Fig. 2 zeigt das Aufsatzmodul 1 in einer besonders vorteilhaften Ausführungsform mit integriertem Kommunikationskabel 14, das eine Übertragung von Ansteuersignalen zwischen zwei Aufsatzmodulen ermöglicht. Dadurch kann bei der gegenseitigen Verriegelung zweier miteinander gekoppelter elektromagnetischer Schaltgeräte, insbesondere zweier Schütze, das Ansteuersignal des einen Schützes über das Schaltelement im Auf- satzmodul des anderen Schützes geführt werden. Fig. 2 shows the attachment module 1 in a particularly advantageous embodiment with integrated communication cable 14, the transmission of drive signals between two Attachment modules allows. As a result, in the mutual locking of two mutually coupled electromagnetic switching devices, in particular two contactors, the drive signal of one contactor can be guided via the switching element in the attachment module of the other contactor.
In Fig. 3 sind die drei möglichen Schaltzustände, der Ein- und Auszustand sowie der Schaltzustand bei verschweißten Kontakten im elektromagnetischen Schaltgerät, dargestellt, die über den Schnapphaken 7 am Stößel 6 dem Schaltelement 9 kommuniziert werden. Der Schnapphaken 7 ändert seine Position relativ zu einer Bezugskante 15 entsprechend der drei möglichen Schaltstellungen im elektromagnetischen Schaltgerät. In der Fig. 3 ist dargestellt, dass der Schnapphaken 7 seine Po- sition relativ zur Bezugskante 15 gemäß der Bewegungsrichtung 16 in drei definierten Stellungen 17, 18, 19 einnimmt und dadurch den Ein- und Auszustand sowie den Schaltzustand bei verschweißten Kontakten anzeigt. Die vorliegende Erfindung bietet zwei entscheidende Vorteile. Zum Einen werden die drei möglichen Schaltstellungen eines elektromagnetischen Schaltgeräts, der Ein- und Auszustand sowie der Schaltzustand bei verschweißten Kontakten durch das erfindungsgemäße Aufsatzmodul präzise angezeigt. Zum Anderen wird für die gegenseitige Verriegelung zweier elektromagnetischer Schaltgeräte kein Hilfskontakt benötigt, so dass der Verdrahtungsaufwand dadurch verringert wird und der Hilfskontakt anderweitig verwendet werden kann. In Fig. 3, the three possible switching states, the on and off state and the switching state in welded contacts in the electromagnetic switching device, shown that are communicated via the snap hook 7 on the plunger 6 the switching element 9. The snap hook 7 changes its position relative to a reference edge 15 corresponding to the three possible switching positions in the electromagnetic switching device. FIG. 3 shows that the snap-action hook 7 assumes its position relative to the reference edge 15 in accordance with the direction of movement 16 in three defined positions 17, 18, 19 and thereby indicates the on and off state and the switching state in the case of welded contacts. The present invention offers two key advantages. On the one hand, the three possible switching positions of an electromagnetic switching device, the on and off state and the switching state in welded contacts are precisely displayed by the attachment module according to the invention. On the other hand, no auxiliary contact is needed for the mutual locking of two electromagnetic switching devices, so that the wiring effort is reduced and the auxiliary contact can be used elsewhere.

Claims

Patentansprüche claims
1. Aufsatzmodul zum Erfassen eines Schaltzustands eines elektromagnetischen Schaltgeräts, das ein Schaltergehäuse aufweist, in welchem ein Betätiger angeordnet ist, der als Stößel (6) ausgebildet ist und an einem Ende in Wirkverbindung zu einem Schaltelement (9), insbesondere einem Mikro- schalter, steht, dadurch gekennzeichnet, dass der Stößel (6) am anderen Ende einen Schnapphaken (7) aufweist, der die drei möglichen Schaltstellungen des elektromagnetischen Schaltgeräts an das Schaltelement (9) kommuniziert. 1. Attachment module for detecting a switching state of an electromagnetic switching device having a switch housing, in which an actuator is arranged, which is designed as a plunger (6) and at one end in operative connection to a switching element (9), in particular a micro-switch, is, characterized in that the plunger (6) at the other end a snap hook (7) which communicates the three possible switching positions of the electromagnetic switching device to the switching element (9).
2. Aufsatzmodul nach Anspruch 1, dadurch gekennzeichnet, dass der Schnapphaken (7) die drei unterschiedlichen Stellungen (17,18,19) relativ zu einer Bezugskante (15) einnimmt. 2. Attachment module according to claim 1, characterized in that the snap hook (7) occupies the three different positions (17,18,19) relative to a reference edge (15).
3. Aufsatzmodul nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die drei unterschiedlichen Schaltzustände den Ein- und Auszustand sowie den Schaltzustand bei verschweißten Kon- takten umfassen. 3. Attachment module according to claim 1 or 2, characterized in that the three different switching states include the on and off state and the switching state in welded contacts.
4. Aufsatzmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Aufsatzmodul (1) ein Kommunikationskabel (14) aufweist, das eine Übertragung von Ansteu- ersignalen zwischen zwei Aufsatzmodulen ermöglicht. 4. Attachment module according to one of the preceding claims, characterized in that the attachment module (1) has a communication cable (14), which enables a transmission of Ansteu- ersignalen between two attachment modules.
5. Aufsatzmodul nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass bei der gegenseitigen Verriegelung zweier miteinander gekoppelter elektromagnetischer Schaltge- rate, insbesondere zweier Schütze, das Ansteuersignal des einen Schützes über das Schaltelement (9) im Aufsatzmodul des anderen Schütz geführt ist. 5. Attachment module according to one of the preceding claims, characterized in that in the mutual locking of two mutually coupled electromagnetic Schaltge- rate, in particular two contactors, the drive signal of a contactor via the switching element (9) is guided in the attachment module of the other contactor.
EP10732992.2A 2009-08-24 2010-07-16 Attachment module for detection of a switching state of an electromagnetic switching device Active EP2471084B1 (en)

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DE102009038671A DE102009038671A1 (en) 2009-08-24 2009-08-24 Attachment module for detecting a switching state of an electromagnetic switching device
PCT/EP2010/060340 WO2011023458A1 (en) 2009-08-24 2010-07-16 Attachment module for detection of a switching state of an electromagnetic switching device

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EP2471084B1 EP2471084B1 (en) 2016-08-31

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KR101529588B1 (en) * 2013-10-18 2015-06-17 엘에스산전 주식회사 Magnetic Contactor
CN104241031B (en) * 2014-06-13 2016-09-07 漳州市锦成电力设备有限公司 The A.C. contactor that a kind of tape jam shows
DE202020107235U1 (en) 2020-12-14 2021-01-14 Abb Schweiz Ag Contactor module and contactor module arrangement

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DE8223377U1 (en) * 1982-08-19 1982-10-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Snap-on auxiliary switch
US4762969A (en) * 1986-11-18 1988-08-09 Bestquint Limited Remotely pressure-operable electrical switch
FR2677806B1 (en) * 1991-06-17 1994-05-06 Telemecanique AUXILIARY SWITCHING DEVICE FOR MAIN SWITCHING APPARATUS.
DE4413182A1 (en) 1994-04-12 1995-10-19 Siemens Ag Device for reporting the position of an insert
EP1372177A3 (en) * 2002-06-13 2005-02-23 Circuit Breaker Industries Limited The remote indication of a circuit breaker status
DE102007002176B4 (en) 2007-01-15 2018-07-19 Siemens Aktiengesellschaft Detecting means for detecting the switching state of an electromagnetic switching device
JP2009123420A (en) * 2007-11-13 2009-06-04 Fuji Electric Fa Components & Systems Co Ltd Remote control device of circuit breaker
EP2169699A1 (en) * 2008-09-25 2010-03-31 Siemens Aktiengesellschaft Electric switch

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EP2471084B1 (en) 2016-08-31
KR20120081102A (en) 2012-07-18
KR101560218B1 (en) 2015-10-14
DE102009038671A1 (en) 2011-03-24
CN102484018B (en) 2014-12-17
BR112012004025B1 (en) 2019-11-19
IN2012DN00917A (en) 2015-04-03
CN102484018A (en) 2012-05-30
BR112012004025A2 (en) 2016-03-29

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