EP1264323B1 - Electromagnetic switching device, especially contactor, with a contact bridge support lock - Google Patents

Electromagnetic switching device, especially contactor, with a contact bridge support lock Download PDF

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Publication number
EP1264323B1
EP1264323B1 EP01915079A EP01915079A EP1264323B1 EP 1264323 B1 EP1264323 B1 EP 1264323B1 EP 01915079 A EP01915079 A EP 01915079A EP 01915079 A EP01915079 A EP 01915079A EP 1264323 B1 EP1264323 B1 EP 1264323B1
Authority
EP
European Patent Office
Prior art keywords
blocking element
switching device
contact bridge
link support
locking
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.)
Expired - Lifetime
Application number
EP01915079A
Other languages
German (de)
French (fr)
Other versions
EP1264323A1 (en
Inventor
Johann Bauer
Stephan Faber
Bardo Koppmann
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 EP1264323A1 publication Critical patent/EP1264323A1/en
Application granted granted Critical
Publication of EP1264323B1 publication Critical patent/EP1264323B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/345—Mounting of arc chutes

Definitions

  • the present invention relates to an electromagnetic switching device, in particular a contactor, comprising a lower part, an arc chamber detachable from the lower part, a contact bridge carrier and a spring-loaded blocking element, wherein the contact bridge carrier is held in the lower part, projects into the arc chamber and is displaceable in an actuating direction, wherein the Contact bridge carrier can be locked with the arc chamber removed by means of the locking element, wherein the blocking element is held in the lower part and is designed as a pivotable about a pivot axis lever.
  • Such a switching device is known for example from DE 43 41 330 C1.
  • the known switching device is already working quite well, but the blocking element requires a relatively large amount of space.
  • an electromechanical switching device in which the contact bridge carrier can be locked by means of a pivotable lever in its switched-on position, wherein the lever is pivotable about a pivot axis which is perpendicular to the actuating direction of the contact bridge carrier.
  • the object is achieved in that the pivot axis is perpendicular to the actuation direction.
  • the storage of the blocking element is particularly simple.
  • the captive holder can, for. Example, be effected in that the locking element and the lower part for holding the locking element in the lower part cooperating locking elements, wherein at least one of the locking elements in the direction of the pivot axis is resiliently deflectable.
  • the contact bridge carrier can be designed freely, without the risk of undesired sticking remaining before the locking position is reached.
  • the blocking element is manually accessible and manually operable when the arc chamber is removed, a test of the switching device for proper functioning is particularly easy to carry out.
  • the test becomes even easier if the switching device has no further blocking element for locking the contact bridge carrier, except for the blocking element.
  • a contactor as an example of an electromagnetic switching device has a lower part 1 and an arc chamber 2.
  • the arc chamber 2 is, as indicated in Figure 1 by an arrow A, removable from the lower part 1.
  • a drive coil 3 is arranged in the lower part 1.
  • a contact bridge carrier 4 is displaced in an actuating direction x.
  • the contact bridge carrier 4 is mounted in the lower part 1 and projects into the arc chamber 2.
  • the contactor further comprises a blocking element 5 which is spring-loaded by means of a spring 6.
  • the spring 6 is formed as a compression spring.
  • the spring 6 could also be designed as a tension or torsion spring.
  • the contact bridge carrier 4 can be locked with the arc chamber 2 removed in the switched-off position of the contactor.
  • the blocking element 5 cooperates with the contact bridge carrier 4 in a latch region 7.
  • the locking portion 7 is hook-shaped and has at its lower end a run-on slope 8. With its hook-shaped locking region 7, the blocking element 5 engages in a corresponding mating contour 9 of the contact bridge carrier 4 and thereby locks the contact bridge carrier 4.
  • the locking element 5 is designed as a lever which is pivotable about a pivot axis 10.
  • the pivot axis 10 extends perpendicular to the actuation direction x. It has a semicircular bearing 11, which is storable in a corresponding bearing cup of the lower part 1.
  • the blocking element 5 is thereby guided during pivoting in a cup bearing 11.
  • the blocking element 5 also has a latching element 12.
  • the locking element 12 is resiliently deflectable in the direction of the pivot axis 10.
  • the latching element 12 cooperates with a further latching element which is arranged in the lower part 1.
  • the further locking element can, but need not be resiliently deflectable in the direction of the pivot axis 10. Due to the interaction of the locking elements 12, the blocking element 5 is held captive in the lower part 1.
  • the locking element 12 has a run-on slope 13. The insertion of the locking element 5 in the lower part 1 can thus be done by simply inserting into the lower part 1 in the insertion direction y.
  • the blocking element 5 is also accessible and manually operable with removed arc chamber 2. It is therefore possible to unlock the contact bridge carrier 4 with the arc chamber 2 removed and then test the contactor for proper function. Due to the starting slope 8, it can not happen during the return transfer of the contact bridge carrier 4 in the off position of the contactor that the contact bridge carrier 4 hooked before reaching the exhibition with the blocking element 5.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

Die vorliegende Erfindung betrifft ein elektromagnetisches Schaltgerät, insbesondere ein Schütz, mit einem Unterteil, einer vom Unterteil abnehmbaren Lichtbogenkammer, einem Kontaktbrückenträger und einem federbelasteten Sperrelement, wobei der Kontaktbrückenträger im Unterteil gehalten ist, in die Lichtbogenkammer hineinragt und in einer Betätigungsrichtung verschiebbar ist, wobei der Kontaktbrückenträger bei abgenommener Lichtbogenkammer mittels des Sperrelements verriegelbar ist, wobei das Sperrelement im Unterteil gehalten ist und als um eine Schwenkachse schwenkbarer Hebel ausgebildet ist.The present invention relates to an electromagnetic switching device, in particular a contactor, comprising a lower part, an arc chamber detachable from the lower part, a contact bridge carrier and a spring-loaded blocking element, wherein the contact bridge carrier is held in the lower part, projects into the arc chamber and is displaceable in an actuating direction, wherein the Contact bridge carrier can be locked with the arc chamber removed by means of the locking element, wherein the blocking element is held in the lower part and is designed as a pivotable about a pivot axis lever.

Ein derartiges Schaltgerät ist beispielsweise aus der DE 43 41 330 C1 bekannt. Das bekannte Schaltgerät arbeitet bereits recht gut, das Sperrelement benötigt aber relativ viel Bauraum.Such a switching device is known for example from DE 43 41 330 C1. The known switching device is already working quite well, but the blocking element requires a relatively large amount of space.

Aus der DE 34 02 836 A1 ist ein ähnliches elektromagnetisches Schaltgerät bekannt. Bei diesem Schaltgerät ist das Sperrelement im Kontaktbrückenträger gelagert.From DE 34 02 836 A1 a similar electromagnetic switching device is known. In this switching device, the blocking element is mounted in the contact bridge carrier.

Aus der DE 195 47 011 C1 ist ein elektromechanisches Schaltgerät bekannt, bei dem der Kontaktbrückenträger mittels eines schwenkbaren Hebels in seiner eingeschalteten Stellung verriegelbar ist, wobei der Hebel um ein Schwenkachse schwenkbar ist, welche senkrecht zur Betätigungsrichtung des Kontaktbrückenträgers verläuft.From DE 195 47 011 C1, an electromechanical switching device is known in which the contact bridge carrier can be locked by means of a pivotable lever in its switched-on position, wherein the lever is pivotable about a pivot axis which is perpendicular to the actuating direction of the contact bridge carrier.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Schaltgerät derart weiterzuentwickeln, daß es kompakter aufgebaut ist.The object of the present invention is to develop a switching device such that it is constructed more compact.

Die Aufgabe wird dadurch gelöst, daß die Schwenkachse senkrecht zur Betätigungsrichtung verläuft.The object is achieved in that the pivot axis is perpendicular to the actuation direction.

Wenn das Schwenkelement beim Schwenken in einer Pfannenlagerung geführt wird, ist die Lagerung des Sperrelements besonders einfach.When the pivoting element is guided during pivoting in a pan bearing, the storage of the blocking element is particularly simple.

Wenn das Sperrelement unverlierbar im Unterteil gehalten ist, ist das Schaltgerät besonders betriebssicher. Die unverlierbare Halterung kann z. B. dadurch bewirkt werden, daß das Sperrelement und das Unterteil zum Halten des Sperrelements im Unterteil zusammenwirkende Rastelemente aufweisen, wobei mindestens eines der Rastelemente in Richtung der Schwenkachse federnd auslenkbar ist.If the blocking element is held captive in the lower part, the switching device is particularly reliable. The captive holder can, for. Example, be effected in that the locking element and the lower part for holding the locking element in the lower part cooperating locking elements, wherein at least one of the locking elements in the direction of the pivot axis is resiliently deflectable.

Wenn das Sperrelement mit dem Kontaktbrückenträger in einem Riegelbereich zusammenwirkt und im Riegelbereich eine Anlaufschräge aufweist, ist der Kontaktbrückenträger frei gestaltbar, ohne daß die Gefahr eines unerwünschten Hängenbleibens vor Erreichen der Verriegelungsstellung besteht.If the blocking element interacts with the contact bridge carrier in a latch area and has a run-on slope in the latch area, the contact bridge carrier can be designed freely, without the risk of undesired sticking remaining before the locking position is reached.

Wenn das Sperrelement bei abgenommener Lichtbogenkammer manuell zugänglich und manuell betätigbar ist, ist ein Test des Schaltgeräts auf ordnungsgemäßes Funktionieren besonders einfach durchführbar.If the blocking element is manually accessible and manually operable when the arc chamber is removed, a test of the switching device for proper functioning is particularly easy to carry out.

Der Test wird noch einfacher, wenn das Schaltgerät außer dem Sperrelement kein weiteres Sperrelement zum Verriegeln des Kontaktbrückenträgers aufweist.The test becomes even easier if the switching device has no further blocking element for locking the contact bridge carrier, except for the blocking element.

Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Dabei zeigen in Prinzipdarstellung

FIG 1
ein Schütz,
FIG 2
einen Ausschnitt von FIG 1 und
FIG 3
ein Sperrelement.
Further advantages and details emerge from the following description of an embodiment. This show in a schematic representation
FIG. 1
a contactor,
FIG. 2
a section of FIG 1 and
FIG. 3
a blocking element.

Gemäß FIG 1 weist ein Schütz als Beispiel eines elektromagnetischen Schaltgeräts ein Unterteil 1 und eine Lichtbogenkammer 2 auf. Die Lichtbogenkammer 2 ist, wie in FIG 1 durch einen Pfeil A angedeutet, vom Unterteil 1 abnehmbar.According to FIG. 1, a contactor as an example of an electromagnetic switching device has a lower part 1 and an arc chamber 2. The arc chamber 2 is, as indicated in Figure 1 by an arrow A, removable from the lower part 1.

Im Unterteil 1 ist eine Antriebsspule 3 angeordnet. Durch Beaufschlagen der Antriebsspule 3 mit einem Schaltstrom wird ein Kontaktbrückenträger 4 in einer Betätigungsrichtung x verschoben. Der Kontaktbrückenträger 4 ist im Unterteil 1 gelagert und ragt in die Lichtbogenkammer 2 hinein.In the lower part 1, a drive coil 3 is arranged. By applying the drive coil 3 with a switching current, a contact bridge carrier 4 is displaced in an actuating direction x. The contact bridge carrier 4 is mounted in the lower part 1 and projects into the arc chamber 2.

Gemäß FIG 2 weist das Schütz ferner ein Sperrelement 5 auf, das mittels einer Feder 6 federbelastet ist. Gemäß FIG 2 ist die Feder 6 als Druckfeder ausgebildet. Prinzipiell könnte die Feder 6 aber auch als Zug- oder Drehfeder ausgebildet sein.According to FIG 2, the contactor further comprises a blocking element 5 which is spring-loaded by means of a spring 6. According to FIG 2, the spring 6 is formed as a compression spring. In principle, the spring 6 could also be designed as a tension or torsion spring.

Mittels des Sperrelements 5 ist der Kontaktbrückenträger 4 bei abgenommener Lichtbogenkammer 2 in der ausgeschalteten Stellung des Schützes verriegelbar. Hierzu wirkt das Sperrelement 5 mit dem Kontaktbrückenträger 4 in einem Riegelbereich 7 zusammen. Der Riegelbereich 7 ist hakenförmig ausgebildet und weist an seinem unteren Ende eine Anlaufschräge 8 auf. Mit seinem hakenförmigen Riegelbereich 7 greift das Sperrelement 5 in eine entsprechende Gegenkontur 9 des Kontaktbrückenträgers 4 ein und verriegelt dadurch den Kontaktbrückenträger 4.By means of the blocking element 5, the contact bridge carrier 4 can be locked with the arc chamber 2 removed in the switched-off position of the contactor. For this purpose, the blocking element 5 cooperates with the contact bridge carrier 4 in a latch region 7. The locking portion 7 is hook-shaped and has at its lower end a run-on slope 8. With its hook-shaped locking region 7, the blocking element 5 engages in a corresponding mating contour 9 of the contact bridge carrier 4 and thereby locks the contact bridge carrier 4.

Gemäß FIG 2 ist das Sperrelement 5 als Hebel ausgebildet, der um eine Schwenkachse 10 schwenkbar ist. Die Schwenkachse 10 verläuft dabei senkrecht zur Betätigungsrichtung x. Es weist eine halbkreisförmige Lagerstelle 11 auf, die in einer korrespondierenden Lagerpfanne des Unterteils 1 lagerbar ist. Das Sperrelement 5 wird dadurch beim Schwenken in einer Pfannenlagerung 11 geführt.According to FIG 2, the locking element 5 is designed as a lever which is pivotable about a pivot axis 10. The pivot axis 10 extends perpendicular to the actuation direction x. It has a semicircular bearing 11, which is storable in a corresponding bearing cup of the lower part 1. The blocking element 5 is thereby guided during pivoting in a cup bearing 11.

Gemäß FIG 3 weist das Sperrelement 5 ferner ein Rastelement 12 auf. Das Rastelement 12 ist in Richtung der Schwenkachse 10 federnd auslenkbar. Das Rastelement 12 wirkt mit einem weiteren Rastelement zusammen, das im Unterteil 1 angeordnet ist. Das weitere Rastelement kann, muß aber nicht in Richtung der Schwenkachse 10 federnd auslenkbar sein. Durch das Zusammenwirken der Rastelemente 12 ist das Sperrelement 5 unverlierbar im Unterteil 1 gehalten.According to FIG. 3, the blocking element 5 also has a latching element 12. The locking element 12 is resiliently deflectable in the direction of the pivot axis 10. The latching element 12 cooperates with a further latching element which is arranged in the lower part 1. The further locking element can, but need not be resiliently deflectable in the direction of the pivot axis 10. Due to the interaction of the locking elements 12, the blocking element 5 is held captive in the lower part 1.

Auch das Rastelement 12 weist eine Anlaufschräge 13 auf. Das Einsetzen des Sperrelements 5 in das Unterteil 1 kann somit durch einfaches Einschieben in das Unterteil 1 in Einschubrichtung y erfolgen.Also, the locking element 12 has a run-on slope 13. The insertion of the locking element 5 in the lower part 1 can thus be done by simply inserting into the lower part 1 in the insertion direction y.

Beim Aufsetzen der Lichtbogenkammer 2 auf das Unterteil 1 erfolgt zwangsweise und automatisch ein Entriegeln des Kontaktbrückenträgers 4. Wie in FIG 2 durch einen Finger 14 schematisch angedeutet ist, ist das Sperrelement 5 bei abgenommener Lichtbogenkammer 2 aber auch manuell zugänglich und manuell betätigbar. Es ist daher möglich, den Kontaktbrückenträger 4 bei abgenommener Lichtbogenkammer 2 zu entriegeln und dann das Schütz auf ordnungsgemäße Funktion zu testen. Aufgrund der Anlaufschräge 8 kann es dabei beim Rücküberführen des Kontaktbrückenträgers 4 in die ausgeschaltete Stellung des Schützes nicht geschehen, daß der Kontaktbrückenträger 4 vor Erreichen der Ausstellung sich mit dem Sperrelement 5 verhakt.When placing the arc chamber 2 on the lower part 1 takes place forcibly and automatically unlocking the contact bridge carrier 4. As indicated schematically in Figure 2 by a finger 14, the blocking element 5 is also accessible and manually operable with removed arc chamber 2. It is therefore possible to unlock the contact bridge carrier 4 with the arc chamber 2 removed and then test the contactor for proper function. Due to the starting slope 8, it can not happen during the return transfer of the contact bridge carrier 4 in the off position of the contactor that the contact bridge carrier 4 hooked before reaching the exhibition with the blocking element 5.

Prinzipiell ist es möglich, mehrere (insbesondere symmetrisch verteilt angeordnete) Sperrelemente 5 vorzusehen. Besonders der Test bei abgenommener Lichtbogenkammer 2 ist aber besonders einfach, wenn das Schütz nur ein einziges Sperrelement 5, also zum Verriegeln des Kontaktbrückenträgers 4 kein weiteres Sperrelement, aufweist.In principle, it is possible to provide a plurality of (in particular symmetrically distributed) blocking elements 5. Especially the test with removed arc chamber 2 is particularly simple if the contactor only a single locking element 5, so for locking the contact bridge carrier 4 no further blocking element has.

Claims (7)

  1. Electromagnetic switching device, in particular a contactor, having a lower part (1), an arcing chamber (2) which can be removed from the lower part (1), a contact link support (4) and a spring-loaded blocking element (5),
    - in which the contact link support (4) is held in the lower part (1), projects into the arcing chamber (2) and can be moved in an operating direction (x),
    - in which the contact link support (4) can be locked by means of the blocking element (5) when the arcing chamber (2) is removed,
    - in which the blocking element (5) is held in the lower part (1) and is in the form of a lever which can pivot about a pivoting axis (10),
    characterized
    in that the pivoting axis (10) runs at right angles to the operating direction (x).
  2. Switching device according to Claim 1,
    characterized
    in that the blocking element (5) is guided in a bush bearing (11) during pivoting.
  3. Switching device according to Claim 1 or 2,
    characterized
    in that the blocking element (5) is held in a captive manner in the lower part (1).
  4. Switching device according to Claim 3,
    characterized
    in that the blocking element (5) and the lower part (1) have latching elements (12) which interact in order to hold the blocking element (5) in the lower part (1), in which at least one of the latching elements (12) can be deflected in a sprung manner in the direction of the pivoting axis (10).
  5. Switching device according to one of the preceding claims,
    characterized
    in that the blocking element (5) interacts with the contact link support (4) in a locking region (7), and in that the blocking element (5) has a ramp incline (8) in the locking region (7).
  6. Switching device according to one of the preceding claims,
    characterized
    in that, when the arcing chamber (2) is removed, the blocking element (5) is manually accessible and can be operated manually.
  7. Switching device according to one of the preceding claims,
    characterized
    in that, apart from the blocking element (5), the switching device has no other blocking element for locking the contact link support (4).
EP01915079A 2000-03-17 2001-03-05 Electromagnetic switching device, especially contactor, with a contact bridge support lock Expired - Lifetime EP1264323B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10013319 2000-03-17
DE10013319A DE10013319C1 (en) 2000-03-17 2000-03-17 Electromagnetic switching device, in particular a contactor, with a contact bridge support lock
PCT/DE2001/000830 WO2001069623A1 (en) 2000-03-17 2001-03-05 Electromagnetic switching device, especially contactor, with a contact bridge support lock

Publications (2)

Publication Number Publication Date
EP1264323A1 EP1264323A1 (en) 2002-12-11
EP1264323B1 true EP1264323B1 (en) 2006-10-18

Family

ID=7635311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915079A Expired - Lifetime EP1264323B1 (en) 2000-03-17 2001-03-05 Electromagnetic switching device, especially contactor, with a contact bridge support lock

Country Status (5)

Country Link
US (1) US6750746B2 (en)
EP (1) EP1264323B1 (en)
CN (1) CN1186791C (en)
DE (2) DE10013319C1 (en)
WO (1) WO2001069623A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004032170A1 (en) * 2002-10-02 2004-04-15 Siemens Aktiengesellschaft Electromagnetic switching device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6752194U (en) 1968-08-24 1969-03-20 Siemens Ag ARC CHAMBERS SUPPORT ARRANGEMENT
US3612796A (en) * 1969-08-06 1971-10-12 Allis Chalmers Mfg Co Interlock between contactor and arc chute
US3659237A (en) * 1971-03-30 1972-04-25 Westinghouse Electric Corp Contactor
US3673525A (en) * 1971-03-30 1972-06-27 Westinghouse Electric Corp Contactor
US3992599A (en) * 1974-05-16 1976-11-16 Allis-Chalmers Corporation Interlock for arc chute of circuit maker and breaker
US4223289A (en) * 1979-01-02 1980-09-16 Westinghouse Electric Corp. AC-DC Magnet coil assembly for low dropout AC contactors
DE3307062C2 (en) * 1983-03-01 1985-06-20 Christian Geyer GmbH & Co, 8500 Nürnberg Arc chamber
DE3402836A1 (en) * 1984-01-27 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Electromagnetic switching apparatus
JPS62213020A (en) * 1986-03-14 1987-09-18 日新電機株式会社 Gas-filled switch
DE4341330C1 (en) 1993-12-03 1995-04-20 Siemens Ag Electromagnetic switching device
DE19547011C1 (en) 1995-12-15 1997-01-09 Siemens Ag Switchgear
DE29612636U1 (en) * 1996-07-15 1997-08-14 Siemens AG, 80333 München Arc quenching chamber for low voltage circuit breakers
US6162332A (en) * 1998-05-07 2000-12-19 Taiwan Semiconductor Manufacturing Company, Ltd. Method and apparatus for preventing arcing in sputter chamber
EP1313117B1 (en) * 2001-11-16 2014-06-04 Abb Ag Arc quenching device for an electronic switch device

Also Published As

Publication number Publication date
CN1186791C (en) 2005-01-26
US6750746B2 (en) 2004-06-15
EP1264323A1 (en) 2002-12-11
DE10013319C1 (en) 2001-10-11
CN1398418A (en) 2003-02-19
DE50111278D1 (en) 2006-11-30
US20030038694A1 (en) 2003-02-27
WO2001069623A1 (en) 2001-09-20

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