EP0956577A1 - Mecanisme de verrouillage d'un commutateur - Google Patents

Mecanisme de verrouillage d'un commutateur

Info

Publication number
EP0956577A1
EP0956577A1 EP98909277A EP98909277A EP0956577A1 EP 0956577 A1 EP0956577 A1 EP 0956577A1 EP 98909277 A EP98909277 A EP 98909277A EP 98909277 A EP98909277 A EP 98909277A EP 0956577 A1 EP0956577 A1 EP 0956577A1
Authority
EP
European Patent Office
Prior art keywords
lever
angle
angle lever
switch lock
intermediate lever
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
EP98909277A
Other languages
German (de)
English (en)
Other versions
EP0956577B1 (fr
Inventor
Rainer Kreutzer
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0956577A1 publication Critical patent/EP0956577A1/fr
Application granted granted Critical
Publication of EP0956577B1 publication Critical patent/EP0956577B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01H71/505—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

Definitions

  • the invention relates to a switch lock for opening and closing contacts of a switching device, which has an angle lever for actuating a lock mechanism, a ratchet lever and an intermediate lever, on which the angle lever is latched in the ON position, in which the latching of the intermediate lever through the release lever provided for triggering.
  • FIG. 6 shows the switch lock in the ON position, in which the long arm of the intermediate lever is latched to a ratchet lever and the latching of the angle lever on the short arm of the intermediate lever. After releasing the angle lever by the intermediate lever, the angle lever is released
  • DE 195 26 591 AI discloses an electrical switch with a main contact point and a secondary contact point, both of which can be actuated via a switch lever and a switch lock connected to it.
  • the switching device further comprises a latching point formed by a release lever and a ratchet lever.
  • the main contact point can be switched via an articulated control lever of the key switch with an intermediate lever.
  • DE 38 29 366 AI describes an electrical switch with a locking arrangement.
  • the switch has an electronic trigger circuit and also contains a reset spring in cooperation with a switch locking spring in order to ensure a manual reset of the switch after an automatic trigger function.
  • Reset spring allows the switch latch assembly to be manually reset with a minimal path length of the switch operating handle.
  • the DE 92 06 137 Ul is a circuit breaker with a
  • the switch lock can be found which contains a rocker arm, a U-bracket, a pawl and a pawl lever and a connecting lever for connection to a control shaft.
  • the rotary movement of the shaft is transmitted here via three levers to three translationally movable contact bridges that can be controlled by tappets.
  • An opening spring is supported on the one hand on the housing of the circuit breaker and on the other hand on the selector shaft.
  • the length of the lever arm, which the opening spring engages is changed. In the ON position, a small lever arm acts on the selector shaft so that the load on the switch lock is minimized.
  • the force of the relaxed opening spring is as great as possible so that the contact load springs can be fully pressed on.
  • the interacting levers are articulated, but not releasably connected.
  • the invention has for its object to improve a switch lock of the type mentioned above in terms of its triggering and resetting from the triggered state to the ON state.
  • angle lever has a projection which, when triggered, moves it into its open position via a nose formed on the ratchet lever.
  • the position of the ratchet lever can be influenced depending on the position of the angle lever. This enables the intermediate to keep the lever lever rotatable in the desired manner without it latching on the ratchet lever.
  • FIG. 1 shows a perspective view of a switch lock according to the invention in the ON state
  • FIG. 2 shows a schematic diagram of the switch lock according to FIG. 1 in the ON state
  • FIG. 3 shows a schematic diagram of the switch lock according to FIG. 1 in the released state
  • FIG. 4 shows a view of the switch lock in a first intermediate position during a reset
  • FIG. 5 shows a view of the switch lock in a second intermediate position during a reset
  • FIG. 1 shows a switch lock 1 of a switching device with a bearing plate 2, an angle lever 3, an intermediate lever 4 and a ratchet lever 5, which are each rotatably mounted on the bearing plate 2.
  • the key switch 1 is here in the ON position, in which the lower end of the angle lever 3 in FIG. 1 is latched on the short arm of the intermediate lever 4.
  • the coupling point of the angle lever 3 is designated with the lever or lock mechanism, not shown here. Due to the spring force acting on the coupling point 6 and indicated by the arrow 7, the angle lever 3 is rotated into the OFF position.
  • the intermediate lever 4 loaded by a return spring 8 is latched via the latch lever 5 at the latching point 17.
  • a nose 9 is formed, on which when the latch lever 5 is triggered, a projection 10 of the angle lever 3 attacks and in this way moves the pawl lever 5 into its open position.
  • the angle lever 3 is latched at the end of a ramp 11 provided on the intermediate lever 4.
  • FIG. 2 shows a schematic diagram of the lever mechanism with the three bearing points 12, 13 and 15 for the levers 3, 4 and 5 mentioned.
  • a compression spring 14 holds the latch lever 5 in its closed position according to FIG. 2.
  • the angle lever 3 already lies here on the ramp 11 of the intermediate lever 4, which is thereby already rotated by a small angle with respect to its starting position beyond the locking point 17. At the same time, the angle lever 3 with its projection 10 still holds the ratchet lever 5 in its open position. 5 shows a second intermediate position during the reset, in which the return of the ratchet lever 4 into its closed position is released by the angle lever 3.
  • the angle lever 3 is located shortly before the end of the ramp 11, ie it is not yet latched to the intermediate lever 4. Only when the end of the ramp 11 is reached does the angle lever 4 release the intermediate lever 3 and the intermediate lever 4 is moved back in the direction of the stop 16 by the return spring 8. The angle lever is latched on the intermediate lever 3 and the intermediate lever 3 is latched on the latch lever 5 as shown in FIGS. 1 and 2.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un mécanisme de verrouillage (1) conçu de telle manière que le levier intermédiaire (4) revient élastiquement, après déclenchement, dans sa position initiale, et que lors du déclenchement, il n'y a aucune liaison fonctionnelle avec le levier coudé (3) ni avec le levier à cliquet (5). En fonction de la position, le levier coudé (3) maintient le levier à cliquet (5) dans une position plus ou moins ouverte. Lors du recalage, le levier coudé (3) glisse le long d'une rampe (11) et provoque ainsi un encliquetage commandé.
EP98909277A 1997-02-03 1998-01-22 Mecanisme de verrouillage d'un commutateur Expired - Lifetime EP0956577B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19703972 1997-02-03
DE1997103972 DE19703972C1 (de) 1997-02-03 1997-02-03 Schaltschloß eines Schaltgeräts
PCT/DE1998/000200 WO1998034257A1 (fr) 1997-02-03 1998-01-22 Mecanisme de verrouillage d'un commutateur

Publications (2)

Publication Number Publication Date
EP0956577A1 true EP0956577A1 (fr) 1999-11-17
EP0956577B1 EP0956577B1 (fr) 2001-07-25

Family

ID=7819150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909277A Expired - Lifetime EP0956577B1 (fr) 1997-02-03 1998-01-22 Mecanisme de verrouillage d'un commutateur

Country Status (4)

Country Link
EP (1) EP0956577B1 (fr)
CN (1) CN1163931C (fr)
DE (1) DE19703972C1 (fr)
WO (1) WO1998034257A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10209262C1 (de) * 2002-03-01 2003-12-24 Moeller Gmbh Verklinkungsmechanismus für Niederspannungsschalter
KR100516943B1 (ko) * 2003-12-26 2005-09-23 엘에스산전 주식회사 모터 보호용 차단기의 트립 오류 방지를 위한 개폐기구부의 구조 및 그 동작 방법
DE102006044119B4 (de) * 2006-09-20 2018-03-08 Eaton Industries Gmbh Elektrisches Schaltgerät
CN102568922B (zh) * 2010-12-30 2015-02-11 中国船舶重工集团公司第七一三研究所 一种载荷信号发生机构
DE102012201260A1 (de) * 2012-01-30 2013-08-01 Siemens Aktiengesellschaft Schalteinheit für ein elektrisches Schaltgerät sowie elektrisches Schaltgerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851817C3 (de) * 1978-04-19 1984-10-18 Siemens AG, 1000 Berlin und 8000 München Niederspannungs-Schutzschalter mit einer Hauptklinke, einer Zwischenklinke und einem Sperrglied
US4301346A (en) * 1980-06-23 1981-11-17 General Electric Company Circuit breaker trip latch assembly
US4344054A (en) * 1981-03-04 1982-08-10 General Electric Company Latch assembly for static trip circuit breakers
US4594491A (en) * 1984-09-28 1986-06-10 Westinghouse Electric Corp. Molded case circuit breaker with a trip mechanism having an intermediate latch lever
US4789848A (en) * 1987-09-03 1988-12-06 General Electric Company Molded case circuit breaker latch and operating mechanism assembly
DE9206137U1 (de) * 1992-05-07 1993-09-09 Siemens AG, 80333 München Leistungsschalter mit einem Schaltschloß
DE19526591B4 (de) * 1995-07-21 2005-04-21 Abb Patent Gmbh Elektrischer Schalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9834257A1 *

Also Published As

Publication number Publication date
WO1998034257A1 (fr) 1998-08-06
CN1241290A (zh) 2000-01-12
DE19703972C1 (de) 1998-05-14
EP0956577B1 (fr) 2001-07-25
CN1163931C (zh) 2004-08-25

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