EP1040493B1 - Multiple break contact device for electrical switchgear - Google Patents

Multiple break contact device for electrical switchgear Download PDF

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Publication number
EP1040493B1
EP1040493B1 EP98966204A EP98966204A EP1040493B1 EP 1040493 B1 EP1040493 B1 EP 1040493B1 EP 98966204 A EP98966204 A EP 98966204A EP 98966204 A EP98966204 A EP 98966204A EP 1040493 B1 EP1040493 B1 EP 1040493B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact device
fixed
electrical switchgear
moving contacts
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
EP98966204A
Other languages
German (de)
French (fr)
Other versions
EP1040493A1 (en
Inventor
Norbert Rösner
Michael Wohlang
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
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 Moeller GmbH filed Critical Moeller GmbH
Publication of EP1040493A1 publication Critical patent/EP1040493A1/en
Application granted granted Critical
Publication of EP1040493B1 publication Critical patent/EP1040493B1/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Definitions

  • the present invention relates to a contact device for electrical Switching devices, in particular contactors, according to the preamble of claim 1.
  • Such a contact device is known from the prior art.
  • the Patent document 147 587 of the former GDR describes one double-break contact device for electrical switching devices.
  • This Contact device ensures a no longer changeable Switching state of the contact device through the movable design of the Fixed contacts.
  • the fixed contact is a pivotable leg part formed which by means of a compression spring, which is on the housing of the Switching device supports, in the direction of moving switch contacts against one Limit stop is pressed.
  • the invention has for its object a contact device for To create switchgear that burns out more evenly Contact materials and on the other hand a clear due to their structure easier assembly of the individual parts guaranteed.
  • the contact device mentioned at the outset was used to solve this task by the features of the characterizing part of claim 1 further training. Due to the straight, linear direction of movement of the Fixed contacts is a constant contact erosion of the contact materials guaranteed. Furthermore, through a defined path limitation Fixed contacts in the direction of actuation of the magnet armature of the magnet drive the use of a burn-up indicator is feasible.
  • the single figure of the drawing shows the sectional view of a contactor with the contact device according to the invention in one possible embodiment.
  • the contact device shown comprises a movable contact piece in the form of a switching bridge 2 and a fixed contact piece 4.
  • the contact bridge 2 is in particular rigidly connected to the driving magnet armature, while the fixed contacts 4 are linearly movable according to the invention, along an axis (axis is determined by the direction of movement of the Magnet armature formed) are stored inside the housing.
  • the fixed contacts 4 are preferably designed as angle pieces, one angle leg being guided in linearly movable manner in guide receptacles of the housing and the other angle leg being angled from the first by preferably 90 ° and being provided with contact material on its side facing the movable contact piece.
  • this angle leg is acted upon on its other side by a spring element 6 in the direction of the movable contact pieces 2 with a spring force.
  • a compression spring is supported in an abutment of the housing against the movable fixed contact 4.
  • the movable fixed contacts 4 are preferably connected to connectors 10 of the switching device via a flexible line connection 8 in the form of strands.
  • the strands are usually welded to the fixed contacts 4.

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

Description

Die vorliegende Erfindung betrifft eine Kontakteinrichtung für elektrische Schaltgeräte, insbesondere Schütze, nach dem Oberbegriff des Anspruchs 1.The present invention relates to a contact device for electrical Switching devices, in particular contactors, according to the preamble of claim 1.

Aus dem Stand der Technik ist eine derartige Kontakteinrichtung bekannt. Die Patentschrift 147 587 der ehemaligen DDR beschreibt eine doppelunterbrechende Kontakteinrichtung für elektrische Schaltgeräte. Diese Kontakteinrichtung gewährleistet einen nicht mehr veränderbaren Schaltzustand der Kontakteinrichtung durch die bewegliche Auslegung der Festkontakte. Hierbei ist der Festkontakt als schwenkbewegliches Schenkelteil ausgebildet, welches mittels einer Druckfeder, die sich am Gehäuse des Schaltgerätes abstützt, in Richtung bewegliche Schaltkontakte gegen einen Begrenzungsanschlag gedrückt wird.Such a contact device is known from the prior art. The Patent document 147 587 of the former GDR describes one double-break contact device for electrical switching devices. This Contact device ensures a no longer changeable Switching state of the contact device through the movable design of the Fixed contacts. Here, the fixed contact is a pivotable leg part formed which by means of a compression spring, which is on the housing of the Switching device supports, in the direction of moving switch contacts against one Limit stop is pressed.

Der Erfindung liegt die Aufgabe zugrunde, eine Kontakteinrichtung für Schaltgeräte zu schaffen, die einerseits einen gleichmäßigeren Abbrand der Kontaktmaterialien und andererseits aufgrund ihres Aufbaus eine deutlich einfachere Montage der Einzelteile gewährleistet.The invention has for its object a contact device for To create switchgear that burns out more evenly Contact materials and on the other hand a clear due to their structure easier assembly of the individual parts guaranteed.

Zur Lösung dieser Aufgabe wurde die eingangs genannte Kontakteinrichtung durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 weitergebildet. Durch die geradlinige, lineare Bewegungsrichtung der Festkontakte ist ein gleichmäßiger Kontaktabbrand der Kontaktmaterialien gewährleistet. Ferner wird durch eine definierte Wegbegrenzung der Festkontakte in Betätigungsrichtung des Magnetankers des Magnetantriebes der Einsatz einer Abbrandanzeige realisierbar.The contact device mentioned at the outset was used to solve this task by the features of the characterizing part of claim 1 further training. Due to the straight, linear direction of movement of the Fixed contacts is a constant contact erosion of the contact materials guaranteed. Furthermore, through a defined path limitation Fixed contacts in the direction of actuation of the magnet armature of the magnet drive the use of a burn-up indicator is feasible.

Weitere Vorteile und Ausführungsformen der Erfindung sind in den Unteransprüchen und in der nachfolgenden Figurenbeschreibung enthalten. Further advantages and embodiments of the invention are in the Subclaims and included in the following description of the figures.

Die einzige Figur der Zeichnung zeigt die Schnittdarstellung eines Schützes mit der erfindungsgemäßen Kontakteinrichtung in einer möglichen Ausführungsform.
Die dargestellte Kontakteinrichtung umfaßt i.w. ein in Form einer Schaltbrücke 2 ausgebildetes bewegliches Kontaktstück und ein feststehendes Kontaktstück 4. Die Kontaktbrücke 2 ist dabei insbesondere starr mit dem antreibenden Magnetanker verbunden, während die Festkontakte 4 erfindungsgemäß linearbeweglich, entlang einer Achse (Achse wird durch die Bewegungsrichtung des Magnetankers gebildet) im Gehäuseinneren gelagert sind. Die Festkontakte 4 sind vorzugsweise als Winkelstücke ausgebildet, wobei der eine Winkelschenkel linearbeweglich in Führungsaufnahmen des Gehäuses geführt ist und der andere Winkelschenkel von dem ersten um vorzugsweise 90° Grad abgewinkelt ist und auf seiner dem beweglichen Kontaktstück zugekehrten Seite mit Kontaktmaterial versehen ist. Vorzugsweise ist dieser Winkelschenkel auf seiner anderen Seite durch ein Federelement 6 in Richtung der beweglichen Kontaktstücke 2 mit einer Federkraft beaufschlagt. Hierfür ist insbesondere eine Druckfeder in einem Widerlager des Gehäuses gegen den beweglichen Festkontakt 4 abgestützt. Die beweglichen Festkontakte 4 sind vorzugsweise über eine flexible Leitungsverbindung 8 in Form von Litzen mit Anschlußstücken 10 des Schaltgerätes verbunden. Hierfür sind die Litze in der Regel mit den Festkontakten 4 verschweißt. In einer anderen Ausführungsform ist es denkbar die Leitungsverbindung 8 starr auszubilden und über eine Kraftschlußverbindung leitfähig mit dem Festkontakt 4 zu verbinden, indem die Leitungsverbindung mit einem Kontaktbereich unter Federkraft auf einen Kontaktbereich des Festkontaktes 4 drückt. Dabei ist der Festkontakt 4 dann trotz dieser Reibkraft beweglich gelagert.The single figure of the drawing shows the sectional view of a contactor with the contact device according to the invention in one possible embodiment.
The contact device shown comprises a movable contact piece in the form of a switching bridge 2 and a fixed contact piece 4. The contact bridge 2 is in particular rigidly connected to the driving magnet armature, while the fixed contacts 4 are linearly movable according to the invention, along an axis (axis is determined by the direction of movement of the Magnet armature formed) are stored inside the housing. The fixed contacts 4 are preferably designed as angle pieces, one angle leg being guided in linearly movable manner in guide receptacles of the housing and the other angle leg being angled from the first by preferably 90 ° and being provided with contact material on its side facing the movable contact piece. Preferably, this angle leg is acted upon on its other side by a spring element 6 in the direction of the movable contact pieces 2 with a spring force. For this purpose, in particular a compression spring is supported in an abutment of the housing against the movable fixed contact 4. The movable fixed contacts 4 are preferably connected to connectors 10 of the switching device via a flexible line connection 8 in the form of strands. For this purpose, the strands are usually welded to the fixed contacts 4. In another embodiment, it is conceivable to make the line connection 8 rigid and to conductively connect it to the fixed contact 4 by means of a non-positive connection, in that the line connection presses with a contact area under spring force onto a contact area of the fixed contact 4. The fixed contact 4 is then movably supported despite this frictional force.

Claims (5)

  1. Multiple-interrupting contact device for electrical switchgear, in particular contactors, having at least two fixed contacts (4) which are mounted such that they can move, and having at least one contact link (2) which is driven by a magnet armature and has moving contacts, and all of whose contact points assume a switching stage which cannot be varied, in the event of one contact point becoming welded, characterized in that each fixed contact (4) is mounted such that it can move linearly along one axis, and has a force in the direction of the moving contacts (2) applied to it via a spring element (6).
  2. Contact device according to Claim 1, characterized in that each fixed contact (4) is angled, being guided with one limb part in the armature operating direction in a guide within the switching device enclosure, and with the contact material being applied to its other limb part.
  3. Contact device according to Claim 1 or 2, characterized in that each fixed contact (4) is connected by means of a flexible cable connection (8) to a connecting piece (10) of the switching device.
  4. Contact device according to Claim 1 or 2, characterized in that each fixed contact (4) is connected via a contact-making, force-fitting connection to a rigid cable connection and, via this, to a connecting piece (10) of the switching device.
  5. Contact device according to one of the preceding claims, characterized in that the moving contacts are rigidly connected to the magnet armature.
EP98966204A 1997-12-17 1998-12-04 Multiple break contact device for electrical switchgear Expired - Lifetime EP1040493B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29722281U 1997-12-17
DE29722281U DE29722281U1 (en) 1997-12-17 1997-12-17 Multiple interrupting contact device for electrical switching devices
PCT/DE1998/003614 WO1999031690A1 (en) 1997-12-17 1998-12-04 Multiple break contact device for electrical switchgear

Publications (2)

Publication Number Publication Date
EP1040493A1 EP1040493A1 (en) 2000-10-04
EP1040493B1 true EP1040493B1 (en) 2002-02-13

Family

ID=8050079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966204A Expired - Lifetime EP1040493B1 (en) 1997-12-17 1998-12-04 Multiple break contact device for electrical switchgear

Country Status (6)

Country Link
US (1) US6449137B1 (en)
EP (1) EP1040493B1 (en)
JP (1) JP3474537B2 (en)
CN (1) CN1127102C (en)
DE (2) DE29722281U1 (en)
WO (1) WO1999031690A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015001859U1 (en) 2015-02-27 2015-03-31 Paul Boden Integration of automotive training models with fault switching and ECU disconnect switch in production vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2959590B1 (en) * 2010-04-29 2012-04-20 Schneider Electric Ind Sas EMERGENCY STOP DEVICE
EP2416340A1 (en) * 2010-08-02 2012-02-08 Eaton Industries GmbH Switching device with a geometric element for impact of the movement of the movable contact element
JP2012199130A (en) * 2011-03-22 2012-10-18 Panasonic Corp Electromagnetic relay
CN106636917B (en) * 2016-12-05 2019-03-12 河钢股份有限公司承德分公司 A kind of HRB600E contains the high-strength hot-rolled anti-seismic steel bar of vanadium and production method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE147587C (en)
DE663157C (en) 1935-12-28 1938-07-30 Rudolf Knote Fa Contact bridge for electrical switches
GB511653A (en) 1938-09-01 1939-08-22 Herbert Bagshaw Prentice Improvements in or relating to double break contacts for electrical contactors or switch gear
DE1677818U (en) * 1952-06-03 1954-06-10 Siemens Ag PRESSURE SWITCHES, IN PARTICULAR LIMIT SWITCHES.
FR1406548A (en) 1964-06-08 1965-07-23 Cem Comp Electro Mec Improvement in control switch blocks
DD147587A1 (en) * 1979-11-29 1981-04-08 Manfred Stamm DOUBLE INTERRUPTIVE CONTACT DEVICE FOR ELECTRICAL SWITCHES, ESPECIALLY SHOULDERS
DE3033668C2 (en) 1980-09-06 1983-12-15 Starkstrom Gummersbach GmbH, 5277 Marienheide Contact device for low-voltage switching devices, in particular contactors
SE424242B (en) * 1980-10-30 1982-07-05 Asea Ab ELECTROMAGNETIC MANOVATED ELECTRICAL SWITCH
FI88438C (en) * 1987-09-25 1993-05-10 Siemens Ag ELECTROMAGNETIC COUPLING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015001859U1 (en) 2015-02-27 2015-03-31 Paul Boden Integration of automotive training models with fault switching and ECU disconnect switch in production vehicles

Also Published As

Publication number Publication date
JP3474537B2 (en) 2003-12-08
DE29722281U1 (en) 1999-04-15
CN1127102C (en) 2003-11-05
WO1999031690A1 (en) 1999-06-24
US6449137B1 (en) 2002-09-10
JP2002509333A (en) 2002-03-26
DE59803105D1 (en) 2002-03-21
EP1040493A1 (en) 2000-10-04
CN1281580A (en) 2001-01-24

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