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DE3834155A1 - Moving contact link for an air-cored contactor - Google Patents

Moving contact link for an air-cored contactor

Info

Publication number
DE3834155A1
DE3834155A1 DE19883834155 DE3834155A DE3834155A1 DE 3834155 A1 DE3834155 A1 DE 3834155A1 DE 19883834155 DE19883834155 DE 19883834155 DE 3834155 A DE3834155 A DE 3834155A DE 3834155 A1 DE3834155 A1 DE 3834155A1
Authority
DE
Germany
Prior art keywords
contact
bridge
leaf spring
plates
link
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
DE19883834155
Other languages
German (de)
Other versions
DE3834155C2 (en
Inventor
Hans-Werner Dipl Ing Willrodt
Burkhard Hess
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.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19883834155 priority Critical patent/DE3834155A1/en
Publication of DE3834155A1 publication Critical patent/DE3834155A1/en
Application granted granted Critical
Publication of DE3834155C2 publication Critical patent/DE3834155C2/de
Granted legal-status Critical Current

Links

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
    • H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The invention is based on the object of creating a light contact link which enables low-bounce switching of high connection currents (AC3 mode) and exhibits low arcing erosion when disconnecting high currents (AC4 mode). According to the invention, this object is achieved in that the contact link (3) consists of an electrically highly conductive non-ferrous metal, in that the ends (4) of the contact-pressure leaf spring (2) surround the ends (5) of the link (3), and in that the ends (4) of the contact-pressure leaf spring (2) extend to the contact plates (6). The invention is used in the case of moving contact links of air-cored contactors having soldered-on contact plates and end link ends via which the disconnection arc is passed on from the contact plates. <IMAGE>

Description

Die Erfindung betrifft eine bewegliche Kontaktbrücke für ein Luftschütz gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a movable contact bridge for a Air contactor according to the preamble of claim 1.

Derartige Kontaktbrücken sind bisher aus Stahl gefertigt und be­ sitzen stirnseitige Enden, die als Abbrandhörner ausgebildet sind, damit der Abschaltlichtbogen von den verschleißanfälligen Silber-Kontaktplatten abgeleitet wird (siehe z.B. AEG Haupt­ katalog 1987/88, A 53.5.01/0487, Seite 1/11, Hauptschaltstück­ satz). Auch sind Kontaktbrücken bekannt, die aus einem Nicht­ eisenmetall bestehen und mit Abbrandplatten aus Stahl bestückt sind.Such contact bridges have so far been made of steel and be sit front ends, which are designed as burn-off horns are so that the shutdown arc from the wear-prone Silver contact plates is derived (see e.g. AEG main catalog 1987/88, A 53.5.01 / 0487, page 1/11, main contact sentence). Contact bridges are also known, which consist of a non are made of ferrous metal and equipped with steel burn-off plates are.

Der Erfindung liegt die Aufgabe zugrunde, eine leichte Kontakt­ brücke zu schaffen, die ein prellarmes Schalten hoher Einschalt­ ströme ermöglicht (AC3-Betrieb) und beim Abschalten hoher Ströme (AC4-Betrieb) einen geringen Lichtbogenabbrand aufweist.The invention has for its object a light contact bridge to create a low-bounce switching high switch-on currents enabled (AC3 operation) and when switching off high currents (AC4 operation) has a low arc burnout.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst. This object is achieved by the in the characteristics of Features specified claim 1 solved.  

Die Erfindung hat den Vorteil, daß die Dimensionierung der Brücke unabhängig von Anforderungen an das Abbrandverhalten er­ folgen kann. Damit ist die Möglichkeit zu einer Gewichtsverrin­ gerung der Brücke gegeben, wodurch das Prellen der Kontaktbrücke im AC3-Betrieb unterdrückt wird. Die Kontaktbrücke besitzt aber trotzdem Stahl-Stirnflächen, die den Abschaltlichtbogen von den Silber-Kontaktplatten ableiten und damit eine hohe Schützlebens­ dauer bei AC4-Betrieb ermöglichen. Das Ableiten des Abschaltlicht­ bogens über die Kontaktdruckfeder bietet gegenüber Brücken mit aufgelöteten Abbrandplatten Kostenvorteile, da bei diesen Brücken ein höherer Montageaufwand anfällt.The invention has the advantage that the dimensioning of Bridge regardless of the requirements for the erosion behavior can follow. This makes it possible to reduce weight given the bridge, causing the contact bridge to bounce is suppressed in AC3 mode. However, the contact bridge has steel end faces nevertheless, which cut off the arc from the Derive silver contact plates and thus a high contact life Enable duration with AC4 operation. Deriving the switch-off light bogens over the contact pressure spring offers compared to bridges soldered erosion plates cost advantages because with these bridges a higher assembly effort arises.

Eine vorteilhafte Weiterbildung der Erfindung ist in dem Unter­ anspruch 2 angegeben.An advantageous development of the invention is specified in the sub-claim 2 .

Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert.An embodiment of the invention is shown in the drawing explained in more detail.

Fig. 1 zeigt die Kontaktbrücke als Baugruppe in Vorder- und Draufsicht, Fig. 1 shows the contact bridge as an assembly in front and plan view,

Fig. 2 zeigt das Kontaktsystem eines Drehstromschützes mit ein­ gebauten Kontaktbrücken in perspektivischer Darstellung. Fig. 2 shows the contact system of a three-phase contactor with a built contact bridges in a perspective view.

Die in Fig. 1 dargestellte Kontaktbrücke 1 besteht aus der Brücke 3, der darauf aufgesetzten Kontaktdruck-Blattfeder 2 und den an die Brücke 3 angelöteten Kontaktplatten 8. Die Kontaktplatten befinden sich auf der Unterseite der Brücke 3, wobei je eine in der Nähe der stirnseitigen Enden 5 der Brücke 3 befestigt ist. Die Brücke 3 besteht aus Kupfer oder anderen elektrisch gutleitenden Nichteisenmetallen, den Kontaktplatten 8 aus einer in der Kontakttechnik bekannten Silberlegierung und der Kontakt­ druck-Blattfeder aus Federstahl. Die Enden 4 der Kontaktdruck- Blattfeder 2 umfassen die stirnseitigen Enden 5 der Brücke 3, wobei sie bis an die Kontaktplatten 8 heranreichen und somit den Abschaltlichtbogen von den Kontaktplatten 8 ableiten. Die Kontaktdruck-Blattfeder 2 ist mit ihren umgebogenen Enden 4 auf die Brücke 3 geklemmt. Ausnehmungen 7 an den stirnseitigen Enden der Brücke 3 geben der Kontaktdruck-Blattfeder 2 einen Halt gegen seitliches Verschieben, so daß keine weiteren Be­ festigungsmittel zum Halten der Kontaktdruck-Blattfeder 2 auf der Brücke 3 erforderlich sind. Diese Befestigungsart ermöglicht die Verringerung des Montageaufwandes, der bei einem Auflöten von Abbrandplatten entstehen würde.The contact bridge 1 shown in Fig. 1 is composed of the bridge 3, the contact pressure placed thereon leaf spring 2 and the soldered to the bridge contact 3 plates 8. The contact plates are located on the underside of the bridge 3 , one each being fastened near the front ends 5 of the bridge 3 . The bridge 3 is made of copper or other non-ferrous metals with good electrical conductivity, the contact plates 8 made of a silver alloy known in contact technology and the contact pressure leaf spring made of spring steel. The ends 4 of the contact pressure leaf spring 2 encompass the front ends 5 of the bridge 3 , reaching as far as the contact plates 8 and thus deriving the switch-off arc from the contact plates 8 . The contact pressure leaf spring 2 is clamped with its bent ends 4 on the bridge 3 . Recesses 7 at the front ends of the bridge 3 give the contact pressure leaf spring 2 a stop against lateral displacement, so that no further fastening means for holding the contact pressure leaf spring 2 on the bridge 3 are required. This type of fastening enables the assembly effort that would be incurred if soldering the burn-up plates to be reduced.

Claims (2)

1. Bewegliche Kontaktbrücke für ein Luftschütz mit aufgelöteten Kontaktplatten und stirnseitigen Brückenenden über die der Ab­ schaltlichtbogen von den Kontaktplatten abgeleitet wird, da­ durch gekennzeichnet, daß die Brücke (3) aus einem elektrisch gutleitenden Nichteisenmetall besteht, daß die Kontaktdruck- Blattfeder (2) mit ihren Enden (4) die stirnseitigen Enden (5) der Brücke (3) umfaßt und daß die Enden (4) der Kontaktdruck- Blattfeder (2) an die Kontaktplatten (8) heranreichen.1. Movable contact bridge for an air contactor with soldered contact plates and end bridge ends over which the switching arc is derived from the contact plates, characterized in that the bridge ( 3 ) consists of an electrically highly conductive non-ferrous metal that the contact pressure leaf spring ( 2 ) with their ends ( 4 ) the front ends ( 5 ) of the bridge ( 3 ) and that the ends ( 4 ) of the contact pressure leaf spring ( 2 ) reach the contact plates ( 8 ). 2. Bewegliche Kontaktbrücke nach Anspruch 1, dadurch gekennzeich­ net, daß die Kontaktdruck-Blattfeder (2) die stirnseitigen Enden (5) der Brücke (3) in Ausnehmungen (7) selbsttätig klemmend um­ faßt.2. Movable contact bridge according to claim 1, characterized in that the contact pressure leaf spring ( 2 ) the end faces ( 5 ) of the bridge ( 3 ) in recesses ( 7 ) automatically clamps around.
DE19883834155 1988-10-07 1988-10-07 Moving contact link for an air-cored contactor Granted DE3834155A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883834155 DE3834155A1 (en) 1988-10-07 1988-10-07 Moving contact link for an air-cored contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883834155 DE3834155A1 (en) 1988-10-07 1988-10-07 Moving contact link for an air-cored contactor

Publications (2)

Publication Number Publication Date
DE3834155A1 true DE3834155A1 (en) 1990-04-12
DE3834155C2 DE3834155C2 (en) 1990-07-19

Family

ID=6364602

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883834155 Granted DE3834155A1 (en) 1988-10-07 1988-10-07 Moving contact link for an air-cored contactor

Country Status (1)

Country Link
DE (1) DE3834155A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117120A1 (en) * 1991-05-25 1992-11-26 Abb Patent Gmbh Contact arrangement for electrical pushbutton switch - incorporates contact holder imparting turning force to spring leaf contact wiping switch contacts together
DE4439295C1 (en) * 1994-11-07 1996-06-05 Inovan Stroebe Contact holder for contact bridge in electric switch
DE102004017160A1 (en) * 2004-03-31 2005-10-20 Bosch Gmbh Robert Relay with self-locking contact bridge
DE102010043352A1 (en) * 2010-11-03 2012-05-03 Tyco Electronics Amp Gmbh Contact arrangement for a relay with two load current paths and relays with contact arrangement
CN102568936A (en) * 2012-02-15 2012-07-11 南京全宁电器有限公司 Contactor capable of having service life prolonged
CN104704598A (en) * 2012-12-05 2015-06-10 富士电机机器制御株式会社 Electromagnetic contactor
EP3116004A1 (en) * 2015-07-08 2017-01-11 TE Connectivity Germany GmbH Contact bridge arrangement for an electrical switching element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755930A1 (en) * 1997-12-17 1999-06-24 Abb Patent Gmbh Contact pairing with double contact point for an electrical switching device
DE102009023073A1 (en) * 2009-05-28 2010-12-02 Eaton Industries Gmbh Bridge contact system
DE102009036054B4 (en) * 2009-08-04 2012-01-19 Siemens Aktiengesellschaft Contact arrangement for a solenoid-type switching device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200416B (en) * 1963-05-03 1965-09-09 Licentia Gmbh Contact system for electrical switchgear, e.g. B. Contactors with bridge contact

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200416B (en) * 1963-05-03 1965-09-09 Licentia Gmbh Contact system for electrical switchgear, e.g. B. Contactors with bridge contact

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117120A1 (en) * 1991-05-25 1992-11-26 Abb Patent Gmbh Contact arrangement for electrical pushbutton switch - incorporates contact holder imparting turning force to spring leaf contact wiping switch contacts together
DE4439295C1 (en) * 1994-11-07 1996-06-05 Inovan Stroebe Contact holder for contact bridge in electric switch
DE102004017160B4 (en) * 2004-03-31 2020-11-05 Seg Automotive Germany Gmbh Relay with self-springing contact bridge
DE102004017160A1 (en) * 2004-03-31 2005-10-20 Bosch Gmbh Robert Relay with self-locking contact bridge
US7598831B2 (en) 2004-03-31 2009-10-06 Robert Bosch Gmbh Relay with self-resilient contact bridge
DE102010043352A1 (en) * 2010-11-03 2012-05-03 Tyco Electronics Amp Gmbh Contact arrangement for a relay with two load current paths and relays with contact arrangement
CN102568936A (en) * 2012-02-15 2012-07-11 南京全宁电器有限公司 Contactor capable of having service life prolonged
CN104704598A (en) * 2012-12-05 2015-06-10 富士电机机器制御株式会社 Electromagnetic contactor
US9520246B2 (en) 2012-12-05 2016-12-13 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor
EP3116004A1 (en) * 2015-07-08 2017-01-11 TE Connectivity Germany GmbH Contact bridge arrangement for an electrical switching element
CN106340408A (en) * 2015-07-08 2017-01-18 泰连德国有限公司 Contact Bridge Arrangement For An Electrical Switching Element
US9978537B2 (en) 2015-07-08 2018-05-22 Te Connectivity Germany Gmbh Contact bridge arrangement for an electrical switching element
CN106340408B (en) * 2015-07-08 2019-11-26 泰连德国有限公司 Touching bridge structure for electric switch element

Also Published As

Publication number Publication date
DE3834155C2 (en) 1990-07-19

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AEG NIEDERSPANNUNGSTECHNIK GMBH & CO. KG, 24534 NE

8339 Ceased/non-payment of the annual fee