EP1284494A3 - Latch mechanism for a circuit breaker, particularly for a protective switch for a motor - Google Patents

Latch mechanism for a circuit breaker, particularly for a protective switch for a motor Download PDF

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Publication number
EP1284494A3
EP1284494A3 EP02017184A EP02017184A EP1284494A3 EP 1284494 A3 EP1284494 A3 EP 1284494A3 EP 02017184 A EP02017184 A EP 02017184A EP 02017184 A EP02017184 A EP 02017184A EP 1284494 A3 EP1284494 A3 EP 1284494A3
Authority
EP
European Patent Office
Prior art keywords
lever
ende
und
der
hebel
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
EP02017184A
Other languages
German (de)
French (fr)
Other versions
EP1284494B1 (en
EP1284494A2 (en
Inventor
Corell Dipl.-Ing. Göbel
Guido Dipl.-Ing. Niewöhner
Ralf Dipl.-Ing. Müller
Georgi Dipl.-Ing. Cwetanski
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.)
ABB AG Germany
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1284494A2 publication Critical patent/EP1284494A2/en
Publication of EP1284494A3 publication Critical patent/EP1284494A3/en
Application granted granted Critical
Publication of EP1284494B1 publication Critical patent/EP1284494B1/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
    • 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
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • 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
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • 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
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force

Abstract

Es wird ein Schaltschloß für ein elektrisches Schaltgerät, insbesondere für einen Motorschutzschalter beschrieben, dessen Eingang mit einem thermischen oder elektromagnetischen Auslöser und dessen Ausgang mit dem beweglichen Teil einer Kontaktstelle gekuppelt sind, und das eine Verklinkungsstelle aufweist, die von dem Auslöser entklinkbar ist, sowie einen Schaltgriff enthält, mit dem die Verklinkungsstelle zum Ausschalten entklinkt und zum Einschalten verklinkt wird.
Zur Vereinfachung des Schaltschlosses sind vorgesehen:

  • ein erster Hebel (30), der an seinem einen Ende (31) ortsfest drehbar gelagert ist,
  • ein zweiter Hebel (33), der mit einem Ende mit dem anderen Ende des ersten Hebels (30) (bei 32) drehbar verbunden ist und einen Teil der Verklinkungsstelle bildet, wobei beide Hebel (30, 33) etwa parallel zueinander und etwa senkrecht zur Kraftrichtung (P) des Auslösers verlaufen, und dessen anderes Ende im Bereich der ortsfesten Auflagerung des ersten Hebels an einem Steuerbügel (36) gelagert ist.
  • ein dritter Hebel (43), der mit einem Ende (bei 45) ortsfest drehbar gelagert ist, und mit dem anderen Ende den anderen Teil der Verklinkungsstelle bildet, und
  • eine Kniehebelanordnung (48) aus einem am dritten Hebel (43) angelenkten Zwischenhebel (49) und einer Lasche (52), deren freies Ende linear geführt und mit dem beweglichen Teil der Kontaktstelle (18, 20; 17, 19) gekoppelt ist, wobei die lineare Führung etwa senkrecht zur Bewegungsrichtung des Auslösers verläuft.
Figure 00000001
A switch lock for an electrical switching device, in particular for a motor protection switch, is described, the input of which is coupled to a thermal or electromagnetic release and the output of which is coupled to the movable part of a contact point, and which has a latching point which can be released from the release, and one Contains control handle with which the latching point is unlatched for switching off and latched for switching on.
To simplify the key switch, the following are provided:
  • a first lever (30) which is rotatably mounted at one end (31),
  • a second lever (33) which is rotatably connected at one end to the other end of the first lever (30) (at 32) and forms part of the latching point, the two levers (30, 33) being approximately parallel to one another and approximately perpendicular to the Direction of force (P) of the trigger, and the other end of which is mounted on a control bracket (36) in the area of the fixed bearing of the first lever.
  • a third lever (43) which is rotatably mounted at one end (at 45) and forms the other part of the latching point at the other end, and
  • a toggle lever arrangement (48) consisting of an intermediate lever (49) articulated on the third lever (43) and a tab (52), the free end of which is linearly guided and coupled to the movable part of the contact point (18, 20; 17, 19), wherein the linear guide runs approximately perpendicular to the direction of movement of the trigger.
Figure 00000001
EP02017184A 2001-08-14 2002-07-31 Latch mechanism for a circuit breaker, particularly for a protective switch for a motor Expired - Lifetime EP1284494B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001139917 DE10139917A1 (en) 2001-08-14 2001-08-14 Switch lock for an electrical switching device, in particular for a motor protection switch
DE10139917 2001-08-14

Publications (3)

Publication Number Publication Date
EP1284494A2 EP1284494A2 (en) 2003-02-19
EP1284494A3 true EP1284494A3 (en) 2004-11-03
EP1284494B1 EP1284494B1 (en) 2011-10-05

Family

ID=7695419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017184A Expired - Lifetime EP1284494B1 (en) 2001-08-14 2002-07-31 Latch mechanism for a circuit breaker, particularly for a protective switch for a motor

Country Status (2)

Country Link
EP (1) EP1284494B1 (en)
DE (1) DE10139917A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7186933B2 (en) * 2005-05-12 2007-03-06 Eaton Corporation Handle attachment, assist mechanism therefor, and electrical switching apparatus employing the same
DE102006011982B4 (en) * 2005-10-26 2009-04-02 Abb Ag Electrical switching device
DE102006057649B4 (en) * 2006-12-07 2021-03-04 Abb Schweiz Ag Switching device
DE102009017099B4 (en) 2009-04-15 2012-02-09 Abb Ag switching device
DE102009048933A1 (en) 2009-07-17 2011-01-27 Abb Ag Switching device with rotary handle
DE102010005345B4 (en) 2010-01-21 2022-04-21 Abb Schweiz Ag Electrical switching device in modular design
EP3002773B1 (en) * 2014-10-01 2017-03-22 Siemens Aktiengesellschaft Switching device with an operator-independent deactivation device
DE202015100926U1 (en) 2015-02-26 2015-03-10 Abb Technology Ag Electrical switching device in modular design

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930213A (en) * 1974-10-09 1975-12-30 Westinghouse Electric Corp Manually operable circuit interrupter with automatic current overload protection
US6262644B1 (en) * 2000-03-08 2001-07-17 General Electric Company Latch resetting arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416678A (en) * 1977-07-07 1979-02-07 Fuji Electric Co Ltd Breaker for wiring
US4550300A (en) * 1984-05-10 1985-10-29 General Electric Company Latch release mechanism for molded case electric circuit breakers
ES2043088T3 (en) * 1988-02-05 1993-12-16 Abb Patent Gmbh CONNECTION LOCK WITHIN A SWITCH FOR INSTALLATION ASSEMBLY.
FR2671907B1 (en) * 1991-01-17 1995-05-12 Telemecanique CIRCUIT BREAKER WITH VARIABLE MANUAL CONTROL.
DE9302252U1 (en) * 1993-02-17 1993-04-22 Kloeckner-Moeller Gmbh, 5300 Bonn, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930213A (en) * 1974-10-09 1975-12-30 Westinghouse Electric Corp Manually operable circuit interrupter with automatic current overload protection
US6262644B1 (en) * 2000-03-08 2001-07-17 General Electric Company Latch resetting arrangement

Also Published As

Publication number Publication date
EP1284494B1 (en) 2011-10-05
DE10139917A1 (en) 2003-02-27
EP1284494A2 (en) 2003-02-19

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