EP0074575B1 - Contact arrangement for an electrical switch device - Google Patents

Contact arrangement for an electrical switch device Download PDF

Info

Publication number
EP0074575B1
EP0074575B1 EP82108120A EP82108120A EP0074575B1 EP 0074575 B1 EP0074575 B1 EP 0074575B1 EP 82108120 A EP82108120 A EP 82108120A EP 82108120 A EP82108120 A EP 82108120A EP 0074575 B1 EP0074575 B1 EP 0074575B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact bridge
bridge
parts
carrier
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
Application number
EP82108120A
Other languages
German (de)
French (fr)
Other versions
EP0074575A3 (en
EP0074575A2 (en
Inventor
Georg Streich
Werner Dipl.-Ing. Harbauer
Johann Bauer
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
Priority to AT82108120T priority Critical patent/ATE24629T1/en
Publication of EP0074575A2 publication Critical patent/EP0074575A2/en
Publication of EP0074575A3 publication Critical patent/EP0074575A3/en
Application granted granted Critical
Publication of EP0074575B1 publication Critical patent/EP0074575B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H1/2025—Bridging contacts comprising two-parallel bridges

Definitions

  • the invention relates to a contact arrangement for electrical switching devices, in particular electromagnetic switching devices, consisting of a cranked contact bridge held in a contact bridge support via a spring plate which is guided against displacement transversely to the direction of movement and which can be displaced against the force of a contact pressure spring in the direction of movement with the spring plate Contact parts can be connected via contact pads.
  • a contact bridge is inserted into a window of the contact bridge support and held against displacement in the contact bridge support by the spring plate (DE-U-1 744 061, DE-B-1 140 264).
  • the invention has for its object to modify this known switchgear version of power engineering so that contact bridges can also be used for electronic circuits without difficulty.
  • the contact bridge support 1 which is driven by a magnetic drive (not shown in more detail), has a window-shaped opening 2, on the one support edge 3 of which the contact pressure spring 4 is supported, which on the other hand rests on the spring plate 5 with frictional engagement.
  • the spring plate 5 is guided with a rag 6 in the actuating direction of the contact bridge carrier 1 and secured against slipping out.
  • the contact bridge 8 is pressed in between the spring plate 5 and the other support edge 7. It consists of the two contact bridge parts 9 and 10, which were created by longitudinal division of the contact bridge and which can be inserted together between the spring plate 5 and the support edge 7 instead of a conventional one-piece contact bridge, as shown in FIG. 3 in the initial stage.
  • the contact bridge parts 9 and 10 are made narrower through recesses 12 so that the exact width of the contact bridges can be maintained. At least at the bends. namely to fear otherwise that the material will widen, so that the contact bridge parts 9 and 10 are not, as shown in Fig. 2. can be close together.
  • the contact pads 13 are, as also shown in FIG. 2, semicircular, so that after insertion of the two contact bridge parts 9 and 10 there is a circular contact pad as a total pad, the parts of which are so close together that the contact pad 14 on the fixed contact part 15 is practically complete is covered without leaving a gap between the two contact pads 13. Outside the contact pads, there are insertion lugs 16 which, as shown in FIG.
  • the pent roof-shaped design of the contact supports 13 also enables the contact bridge between the spring plate 5 and the support edge 7 to be inserted more easily without the contact bridge getting caught when being inserted.
  • the insertion lugs 16 can be provided with bevels, so that the insertion through the inclined surfaces is further simplified without having to go to any trouble.

Landscapes

  • Contacts (AREA)
  • Push-Button Switches (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Magnetically Actuated Valves (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Keying Circuit Devices (AREA)

Abstract

A contact arrangement for electric switchgear is disclosed. The contact arrangement comprises a bifurcated offset contact bridge having two contact bridge parts, each of which is inserted into an opening in an actuating contact bridge carrier. Each contact bridge part rests on a first supporting surface of the opening. A spring retainer rests against the contact bridge and a compression spring is mounted between a second surface of the opening and the spring retainer. The spring retainer is guided in the contact bridge carrier against movement transverse to the direction of motion of the carrier. Each end of each contact bridge part is provided with a semicircular contact pad which, when the contact bridge parts are placed adjacent each other, form a bifurcated circular contact pad which engages with corresponding stationary contacts. Each part of the bifurcated contact bridge is provided with a recess on both sides in the area of the offset in order to maintain both contact bridge parts in close proximity with each other and to ensure proper contact engagement.

Description

Die Erfindung bezieht sich auf eine Kontaktanordnung für elektrische Schaltgeräte, insbesondere elektromagnetische Schalgeräte, bestehend aus einer in einem Kontaktbrückenträger über einen gegen Verschieben quer zur Bewegungsrichtung geführten Federteller gehaltenen, entgegen der Kraft einer Kontaktdruckfeder in Bewegungsrichtung mit dem Federteller verschiebbaren, abgekröpften Kontaktbrücke, die mit feststehenden Kontaktteilen über Kontaktauflagen in Verbindung bringbar ist.The invention relates to a contact arrangement for electrical switching devices, in particular electromagnetic switching devices, consisting of a cranked contact bridge held in a contact bridge support via a spring plate which is guided against displacement transversely to the direction of movement and which can be displaced against the force of a contact pressure spring in the direction of movement with the spring plate Contact parts can be connected via contact pads.

Bei bekannten Schaltgeräten der obengenannten Art ist in ein Fenster des Kontaktbrückenträgers jeweils eine Kontaktbrücke eingesetzt und von dem Federteller gegen Verschieben im Kontaktbrückenträger gehalten (DE-U-1 744 061, DE-B-1 140 264).In known switching devices of the above-mentioned type, a contact bridge is inserted into a window of the contact bridge support and held against displacement in the contact bridge support by the spring plate (DE-U-1 744 061, DE-B-1 140 264).

Der Erfindung liegt die Aufgabe zugrunde, diese bekannte Schaltgeräteausführung der Starkstromtechnik dahingehend abzuändern, daß ohne Schwierigkeiten auch Kontaktbrücken für elektronische Schaltkreise Verwendung finden können.The invention has for its object to modify this known switchgear version of power engineering so that contact bridges can also be used for electronic circuits without difficulty.

Dies wird auf einfache Weise durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale. erreicht.This is easily achieved by the features specified in the characterizing part of claim 1. reached.

Hierdurch ist es möglich, im Gegensatz zu einer weiterhin auf dem Relaisgebiet bekannten Anordnung (US-A-3 272 949), bei der die einzelnen Kontaktbrücken im Abstand zueinander liegen, die Kontaktbrücken derart dicht beieinander zu hatten, daß die einzelnen Kontaktauflagen praktisch als geschlossenes Ganzes auf der einstückigen Festkontaktteilauflage aufliegen, so daß der Kontaktauflagenquerschnitt am feststehenden Kontaktteil komplett ausgenutzt werden kann. Um die dicht nebeneinanderliegenden Kontaktbrückenteile vorzugsweise maschinell in ein Fenster des Kontaktbrückenträgers zwischen Federteller und Abstützungskante einfach einschieben zu können, haben sich die im kennzeichnenden Teil des Anspruches 2 angegebenen Merkmale als vorteilhaft erwiesen. Verhakungen an der Kontaktauflage beim Einschieben können mit Sicherheit verhindert werden, wenn die Kontaktauflagen in der durch das Kennzeichen des Anspruches 3 angegebenen Weise ausgebildet sind. Die Kreisquerschnittsform der Kontaktauflagen der feststehenden Kontaktteile kann beibehalten werden, wenn die Kontaktauflagen gemäß Kennzeichen des Anspruches 4 ausgebildet sind.This makes it possible, in contrast to an arrangement which is still known in the relay field (US Pat. No. 3,272,949), in which the individual contact bridges are spaced apart, to have the contact bridges so close to one another that the individual contact pads are practically closed The whole rest on the one-piece fixed contact part support, so that the contact support cross section on the fixed contact part can be fully utilized. In order to be able to easily push the contact bridge parts lying close together, preferably mechanically, into a window of the contact bridge support between the spring plate and the support edge, the features specified in the characterizing part of claim 2 have proven to be advantageous. Hooking on the contact pad when inserting can be prevented with certainty if the contact pads are designed in the manner indicated by the characterizing part of claim 3. The circular cross-sectional shape of the contact pads of the fixed contact parts can be maintained if the contact pads are designed according to the characterizing part of claim 4.

Anhand der Zeichnung wird ein Ausführungsbeispiel gemäß der Erfindung beschrieben und die Wirkungsweise näher erläutert.An exemplary embodiment according to the invention is described with reference to the drawing and the mode of operation is explained in more detail.

Es zeigen :

  • Figur 1 schematisch dargestellt die erfindungsgemäße Kontaktanordnung in Seitenansicht,
  • Figur 2 eine Draufsicht bei geschnittenem Kontaktbrückenträger,
  • Figur 3 den Beginn des Einschubvorganges der Kontaktbrücken.
Show it :
  • FIG. 1 shows a schematic side view of the contact arrangement according to the invention,
  • FIG. 2 shows a plan view with the contact bridge carrier cut,
  • Figure 3 shows the beginning of the insertion process of the contact bridges.

Der von einem nicht näher dargestellten Magnetantrieb angetriebene Kontaktbrückenträger 1 besitzt eine fensterförmige Öffnung 2, an deren einen Abstützungskante 3 sich die Kontaktdruckfeder 4 abstützt, die andererseits an dem Federteller 5 unter Kraftschluß anliegt. Der Federteller 5 ist mit Lappen 6 in Betätigungsrichtung des Kontaktbrückenträgers 1 an diesem verschiebbar geführt und gegen Herausrutschen gesichert. Zwischen dem Federteller 5 und der anderen Abstützungskante 7 ist die Kontaktbrücke 8 eingepreßt. Sie besteht aus den beiden Kontaktbrückenteilen 9 und 10, die durch Längsteilung der Kontaktbrücke entstanden sind und die anstelle einer üblichen einstückigen Kontaktbrücke gemeinsam zwischen Federteller 5 und Abstützungskante 7 eingeschoben werden können, wie dies Fig. 3 im Anfangsstadium darstellt. Im Bereich der Abkröpfung 11 sind die Kontaktbrückenteile 9 und 10 durch Ausnehmungen 12 schmaler ausgeführt, so daß die genaue Breite der Kontaktbrücken eingehalten werden kann. Zumindest an den Biegestellen ist . nämlich sonst zu befürchten, daß sich das Material verbreitert, so daß die Kontaktbrückenteile 9 und 10 nicht, wie in Fig. 2 dargestellt. dicht nebeneinander liegen können. Die Kontaktauflagen 13 sind, wie Fig. 2 ebenfalls zeigt, halbkreisförmig ausgebildet, so daß sich nach Einführen der beiden Kontaktbrückenteile 9 und 10 eine kreisförmige Kontaktauflage als Gesamtauflage ergibt, deren Teile so dicht nebeneinander liegen, daß die Kontaktauflage 14 am feststehenden Kontaktteil 15 praktisch komplett bedeckt ist, ohne einen Spalt zwischen den beiden Kontaktauflagen 13 freizulassen. Außerhalb der Kontaktauflagen , sind Einführansätze 16 vorhanden, die, wie Fig. 3 zeigt, zwischen den Federteller 5 und die Abstützungskante 7 zum Einführen der Kontaktbrücken geschoben werden können. Die pultdachförmige Ausführung der Kontaktauflagen 13 ermöglicht weiterhin das leichtere Eingleiten der Kontaktbrücke zwischen Federteller 5 und Abstützungskante 7, ohne daß die Kontaktbrücke beim Einschieben verhakt. Die Einführungsansätze 16 können mit Abschrägungen versehen werden, so daß das Einführen durch die Schrägflächen weiterhin vereinfacht wird, ohne hierbei einen Aufwand treiben zu müssen.The contact bridge support 1, which is driven by a magnetic drive (not shown in more detail), has a window-shaped opening 2, on the one support edge 3 of which the contact pressure spring 4 is supported, which on the other hand rests on the spring plate 5 with frictional engagement. The spring plate 5 is guided with a rag 6 in the actuating direction of the contact bridge carrier 1 and secured against slipping out. The contact bridge 8 is pressed in between the spring plate 5 and the other support edge 7. It consists of the two contact bridge parts 9 and 10, which were created by longitudinal division of the contact bridge and which can be inserted together between the spring plate 5 and the support edge 7 instead of a conventional one-piece contact bridge, as shown in FIG. 3 in the initial stage. In the area of the bend 11, the contact bridge parts 9 and 10 are made narrower through recesses 12 so that the exact width of the contact bridges can be maintained. At least at the bends. namely to fear otherwise that the material will widen, so that the contact bridge parts 9 and 10 are not, as shown in Fig. 2. can be close together. The contact pads 13 are, as also shown in FIG. 2, semicircular, so that after insertion of the two contact bridge parts 9 and 10 there is a circular contact pad as a total pad, the parts of which are so close together that the contact pad 14 on the fixed contact part 15 is practically complete is covered without leaving a gap between the two contact pads 13. Outside the contact pads, there are insertion lugs 16 which, as shown in FIG. 3, can be pushed between the spring plate 5 and the supporting edge 7 for inserting the contact bridges. The pent roof-shaped design of the contact supports 13 also enables the contact bridge between the spring plate 5 and the support edge 7 to be inserted more easily without the contact bridge getting caught when being inserted. The insertion lugs 16 can be provided with bevels, so that the insertion through the inclined surfaces is further simplified without having to go to any trouble.

Claims (4)

1. Contact arrangement for electrical switching devices, in particular electromagnetic switching devices, comprising an angled contact bridge (8) held in a contact bridge carrier (1) by means of a spring plate (5) guided transversely to the direction of movement against shifting, displaceable in the direction of movement with the spring plate (5) against the force of a contact pressure spring (4), which contact bridge can be brought into contact with fixed contact parts (15) by means of contact supports (14), characterised in that the contact bridge (8) is divided into two parts (9, 10) in the longitudinal direction, and in the region of the angled point (11) is made to be narrower on both sides than the maximum width.
2. Contact arrangement according to claim 1, characterised in that the contact bridge parts (9, 10) outside the contact supports (13) are provided with leading ends (16) for inserting the contact bridge (8) between the spring plate (5) and the support surface (7) on the contact bridge carrier (1).
3. Contact arrangement according to claim 1 or 2, characterised in that the contact supports (13) of the contact bridge (8) are of desk-top design in the slide-in direction of the contact bridge (8).
4. Contact arrangement according to claim 1 or 2, characterised in that the contact supports (13) of the contact bridge (8) are of semi-circular construction for each contact bridge part (9, 10) respectively.
EP82108120A 1981-09-14 1982-09-02 Contact arrangement for an electrical switch device Expired EP0074575B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108120T ATE24629T1 (en) 1981-09-14 1982-09-02 CONTACT ARRANGEMENT FOR ELECTRICAL SWITCHING DEVICES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3136354A DE3136354C2 (en) 1981-09-14 1981-09-14 Contact arrangement for electrical switching devices
DE3136354 1981-09-14

Publications (3)

Publication Number Publication Date
EP0074575A2 EP0074575A2 (en) 1983-03-23
EP0074575A3 EP0074575A3 (en) 1985-05-02
EP0074575B1 true EP0074575B1 (en) 1986-12-30

Family

ID=6141577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108120A Expired EP0074575B1 (en) 1981-09-14 1982-09-02 Contact arrangement for an electrical switch device

Country Status (10)

Country Link
US (1) US4453057A (en)
EP (1) EP0074575B1 (en)
JP (1) JPS5859515A (en)
AT (1) ATE24629T1 (en)
BR (1) BR8205339A (en)
DE (2) DE3136354C2 (en)
DK (1) DK157512C (en)
ES (1) ES274779Y (en)
FI (1) FI77742C (en)
IN (1) IN157359B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304539B1 (en) * 1984-03-31 1993-02-03 Square D Company (Deutschland) Gmbh Switching bridge for electrical switching devices, particularly for contactors
JPS6116841U (en) * 1984-06-20 1986-01-31 三菱電機株式会社 Movable contact holding structure
DE3609634A1 (en) * 1986-03-21 1987-09-24 Kloeckner Moeller Elektrizit Contact arrangement for electrical switching apparatuses
DE3610259C2 (en) * 1986-03-26 1994-06-30 Siemens Ag Contact arrangement for a switching device
DE3628423A1 (en) * 1986-08-21 1988-02-25 Kloeckner Moeller Elektrizit Contact arrangement for electrical switching devices
DE8805875U1 (en) * 1988-05-03 1989-09-07 Siemens AG, 1000 Berlin und 8000 München Electrical switching device
US5145057A (en) * 1989-04-20 1992-09-08 Fuji Electric Corporation, Ltd. Auxiliary contact unit for an electromagnetic switch
DE4309177A1 (en) * 1993-03-22 1994-09-29 Siemens Ag Switchgear, especially contactor or circuit breakers
IT1315564B1 (en) 2000-12-12 2003-02-18 Marvon Srl INTUMESCENT GASKET REINFORCED
US6837729B2 (en) * 2002-09-10 2005-01-04 Tyco Electronics Corporation High power electrical contactor with improved bridge contact mechanism
JP2006294459A (en) * 2005-04-12 2006-10-26 Nec Tokin Corp Electromagnetic relay
DE102009036054B4 (en) * 2009-08-04 2012-01-19 Siemens Aktiengesellschaft Contact arrangement for a solenoid-type switching device
US9520245B2 (en) 2010-11-10 2016-12-13 Tyco Electronics Japan G.K. Contact structure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1744061U (en) * 1956-09-05 1957-05-02 Siemens Ag ELECTRIC SWITCHGEAR.
DE1140264B (en) * 1958-01-15 1962-11-29 Siemens Ag Luftschuetz
DE1170041B (en) * 1963-02-11 1964-05-14 Metzenauer & Jung G M B H Electrical switch with a switch piece that can be moved by a slide
US3200225A (en) * 1963-06-03 1965-08-10 Square D Co Articulated reciprocating contact structure
FR1435781A (en) * 1964-06-22 1966-04-22 Telemecanique Electrique Improvements to the contact poles of current breaking devices
US3272949A (en) * 1964-08-14 1966-09-13 Allen Bradley Co Bifurcated parallel contacts for relay
DE2124295A1 (en) * 1971-05-15 1972-11-30 Metzenauer & Jung Gmbh Electromagnetic contactor
JPS4881353U (en) * 1971-12-30 1973-10-04
DE2222751B1 (en) * 1972-05-09 1973-10-31 Siemens Ag CONTACT RULES
US4006322A (en) * 1975-09-22 1977-02-01 Allis-Chalmers Corporation Auxiliary interlock switch with interchangeable and reversible chisel-shaped contacts and spring biasing mechanism
US4121073A (en) * 1977-02-28 1978-10-17 Texas Instruments Incorporated Condition responsive electrical switch having improved bridging contact means
FR2478867A1 (en) * 1980-03-24 1981-09-25 Merlin Gerin Circuit breaker auxiliary contact and cooling plates - uses electromagnetic induction to open main contact and open auxiliary contact which draws arc to cooling plates

Also Published As

Publication number Publication date
FI77742C (en) 1989-04-10
EP0074575A3 (en) 1985-05-02
IN157359B (en) 1986-03-08
DK408182A (en) 1983-03-15
DE3136354A1 (en) 1983-03-31
DE3136354C2 (en) 1985-10-17
DE8126801U1 (en) 1982-03-04
JPS645407B2 (en) 1989-01-30
FI77742B (en) 1988-12-30
BR8205339A (en) 1983-08-23
DK157512C (en) 1990-06-05
ES274779Y (en) 1984-09-01
JPS5859515A (en) 1983-04-08
US4453057A (en) 1984-06-05
ATE24629T1 (en) 1987-01-15
FI822668A0 (en) 1982-07-30
EP0074575A2 (en) 1983-03-23
ES274779U (en) 1984-01-16
FI822668L (en) 1983-03-15
DK157512B (en) 1990-01-15

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