EP0454963B1 - Schaltmechanismus für Niederspannungsschaltgeräte - Google Patents

Schaltmechanismus für Niederspannungsschaltgeräte Download PDF

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Publication number
EP0454963B1
EP0454963B1 EP91102890A EP91102890A EP0454963B1 EP 0454963 B1 EP0454963 B1 EP 0454963B1 EP 91102890 A EP91102890 A EP 91102890A EP 91102890 A EP91102890 A EP 91102890A EP 0454963 B1 EP0454963 B1 EP 0454963B1
Authority
EP
European Patent Office
Prior art keywords
lever
switching
switching mechanism
contacts
mechanism according
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
EP91102890A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0454963A1 (de
Inventor
Johannes Dipl.-Ing. Becker
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik 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 Felten and Guilleaume Energietechnik AG filed Critical Felten and Guilleaume Energietechnik AG
Publication of EP0454963A1 publication Critical patent/EP0454963A1/de
Application granted granted Critical
Publication of EP0454963B1 publication Critical patent/EP0454963B1/de
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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

  • the invention relates to a switching mechanism for low-voltage switching devices according to the preamble of claim 1.
  • Such a switching mechanism for actuating the electrical contacts of a switching device is already known (DEP 35 08 110).
  • the switching mechanism described there has a locking member, which has the task of locking the switching contacts shortly before touching them.
  • the preloaded locking element holds a switching axis, which establishes the transmission to the switching contacts of the switching device, via a disk up to a selectable switch-on force on the switching knob.
  • energy is stored by elastic deformation of the switching elements between the switching knob and the switching axis.
  • the pretensioned locking element is deflected and the disk of the switching axis rolls on a circular contour of the locking element.
  • the disk comes out of the engagement of the blocking element and the switching axis swings in the switching-on direction and thus causes the switching contacts of the switching device to switch on suddenly.
  • This switching mechanism is intended for use in conventional residual current circuit breakers. The further development, however, is that the residual current circuit breakers are reduced, which means that less space is available for the switching mechanism than before.
  • the invention is based on the object of developing a switching mechanism for a residual current circuit breaker which can be accommodated in a predetermined small space and which meets all requirements with regard to switching capacity, service life and climate stability.
  • the advantages achieved by the invention are that an extremely space-saving switching mechanism has been created, which can be used in various switches, but particularly in residual current circuit breakers. In addition to its reliability, it should also be mentioned that it is inexpensive to manufacture.
  • the force transmitted from the contacts via the connecting plate, the plate, and the rocker arm to the release lever is partially offset by a corresponding, counteracting torque which is exerted by the torsion spring on the release lever (Claim 4).
  • the degree of force compensation can be designed so that the uncompensated part of the force is still sufficient to overcome the frictional forces of the individual parts and to ensure triggering.
  • the force acting for the release from the axle for a return plate can be minimized and a tripping relay with relatively little force can be used.
  • this reset plate After switching off by the trigger relay, this must be reset to the starting position. This is advantageously done by a reset plate, which is rotatably mounted on an axis and is rotated clockwise by the end of the connecting tab in the switch-off position of the switching mechanism, a lever of the reset plate pressing on the pin of the trigger relay and resetting it.
  • the return plate is made of elastic sheet metal, so that the levers act as leaf springs (claims 5 and 6). These leaf springs are dimensioned so that they deform plastically at a force that is higher than the necessary restoring force.
  • this reset plate can be manufactured with an oversize. When it is operated for the first time, it is adapted to the actual installation conditions by plastic deformation. This ensures that the trip relay is completely reset and is not subjected to an unnecessarily high force.
  • the residual current circuit breaker can be switched on and off manually by a switching lever 1 .
  • the shift lever 1 is connected to a toggle lever system which consists of a spring member 2 , a bracket 3 and a connecting bracket 4 .
  • the toggle lever system has a common axis 5 which is arranged to be movable.
  • a contact shaft 6 is connected, which carries a movable contact 7 , to which a fixed contact 8 belongs.
  • a locking device is connected to the shift lever 1 , which consists of a short lever 9 and a long lever 10 . Both levers have a common axis 11 .
  • the short lever 9 is connected directly to the central axis of the shift lever 1 , while the free end of the long lever 10 corresponds to the common axis 5 of the toggle lever system, for which purpose the long lever 10 is provided with an elongated hole 15 at this point.
  • a trigger lever 16 and a reset plate 18 are for triggering and a pawl 22 is provided.
  • a trigger relay 20 responds, the reset plate 18 and the pawl 22 rotate counterclockwise.
  • the reset plate 18 and the pawl 22 are pivotable about an axis 19 .
  • a rocker arm 14 can also rotate, as a result of which the toggle lever system causes the contacts 7 and 8 to open.
  • the trigger lever 16 is provided with a torsion spring 17 . All parts, including the trigger relay 20 , but without the contact shaft 6 and contacts 7, 8 are housed in a switch lock 21 .
  • the mechanism of operation of the switching mechanism is as follows:
  • the switching lock 21 has a quick switch-on with a path-dependent locking device.
  • the levers 9 and 10 form with the axis 11 a toggle lever system in a dead center position.
  • the toggle lever system consisting of the spring member 2 , the bracket 3 and the connecting bracket 4 is locked in a position in which no contact has yet been made.
  • a compression spring of the longitudinally collapsible spring member 2 is tensioned until the projection 12 of the shift lever 1 touches the projection 13 of the short lever and the lever system with the levers 9 and 10 continues to move until it exceeds the dead center position in the stretched position swells and the knee lever system 2, 3 and 4 suddenly releases.
  • the contacts 7, 8 are closed suddenly.
  • Tripping takes place via the release lever 16 , the reset plate 18 and the pawl 22.
  • the trigger relay 20 responds , the reset plate 18 and the pawl 22 are rotated counterclockwise.
  • the projection 23 of the pawl 22 releases the release lever 16 , which can now turn counterclockwise and by turning the rocker arm 14 clockwise, the toggle lever system 2, 3 and 4 can move to the left and the contact shaft 6 goes as shown in FIG. 4 in the off position.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electronic Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Control Of Transmission Device (AREA)
EP91102890A 1990-04-30 1991-02-28 Schaltmechanismus für Niederspannungsschaltgeräte Expired - Lifetime EP0454963B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4013840 1990-04-30
DE9004883U DE9004883U1 (es) 1990-04-30 1990-04-30
DE4013840A DE4013840A1 (de) 1990-04-30 1990-04-30 Schaltmechanismus fuer niederspannungsschaltgeraete

Publications (2)

Publication Number Publication Date
EP0454963A1 EP0454963A1 (de) 1991-11-06
EP0454963B1 true EP0454963B1 (de) 1994-05-25

Family

ID=25892707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102890A Expired - Lifetime EP0454963B1 (de) 1990-04-30 1991-02-28 Schaltmechanismus für Niederspannungsschaltgeräte

Country Status (7)

Country Link
EP (1) EP0454963B1 (es)
JP (1) JPH04230926A (es)
CN (1) CN1020521C (es)
AT (1) ATE106159T1 (es)
AU (1) AU633425B2 (es)
DE (3) DE9004883U1 (es)
ES (1) ES2053222T3 (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9103979U1 (es) * 1991-04-02 1991-06-27 Felten & Guilleaume Energietechnik Ag, 5000 Koeln, De
DE4329100A1 (de) * 1992-10-08 1994-04-14 Abb Patent Gmbh Elektrischer Schalter
DE4233918B4 (de) * 1992-10-08 2004-02-26 Schulte-Elektrotechnik Gmbh & Co Kg Elektrischer Schalter mit Stromüberwachung
DE4315754A1 (de) * 1993-05-11 1994-11-17 Bayerische Motoren Werke Ag Schalter für Kraftfahrzeuge
DE4330715A1 (de) * 1993-09-10 1995-03-16 Kloeckner Moeller Gmbh Elektrischer Schalter mit Kippsprungwerk
DE4339425B4 (de) * 1993-11-18 2005-11-10 Heinrich Kopp Ag Schaltschloß für einen Fehlerstromschutzschalter
DE19627691A1 (de) * 1996-07-10 1998-01-15 Felten & Guilleaume Energie Betätigungshandhabe für ein Schaltgerät
DE19703977C1 (de) * 1997-02-03 1998-05-14 Siemens Ag Schaltgerät mit Schnelleinschaltung
DE19715261C1 (de) * 1997-04-12 1998-12-10 Gruner Ag Relais
DE19927984A1 (de) * 1999-06-18 2000-12-21 Kopp Heinrich Ag Reiheneinbaugerät
JP4063528B2 (ja) * 2001-11-27 2008-03-19 佐鳥エス・テック株式会社 スイッチの接触機構
DE102006006409A1 (de) * 2006-02-13 2007-08-16 Wolf Neumann-Henneberg Schalter
DE102006012125B3 (de) * 2006-03-09 2007-11-15 Siemens Ag Elektrisches Schaltgerät
DE102007003403B4 (de) * 2006-12-14 2010-02-25 Abb Ag Elektrischer Schalter
CN101399131B (zh) * 2008-11-14 2012-08-01 温州奥来电器有限公司 一种隔离开关
CN102237208A (zh) * 2010-05-03 2011-11-09 Abb股份公司 电气安装开关设备
CN102496495B (zh) * 2011-12-20 2014-04-30 施耐德万高（天津）电气设备有限公司 低压隔离开关的储能弹簧操作机构
CN104627050B (zh) * 2013-11-07 2017-03-08 陕西汽车集团有限责任公司 自卸车车箱箱板启闭装置
EP3179496B1 (en) * 2015-12-10 2018-08-22 ABB Schweiz AG Rotary auxiliary switches for medium voltage switchgears
CN106935451B (zh) * 2015-12-30 2019-04-30 三信国际电器上海有限公司 一种合闸装置及具有该装置的剩余电流动作断路器
CN106654905B (zh) * 2016-12-09 2019-01-08 国网北京市电力公司 电控箱
DE102018216210A1 (de) * 2018-09-24 2020-03-26 Siemens Aktiengesellschaft Schnell auslösende Verklinkung, Auslösemechanismus und Schnellerder, Schnellschalter oder Kurzschließer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2231179A1 (de) * 1972-06-26 1974-01-17 Bbc Brown Boveri & Cie Leistungsschalter in ein- oder mehrpoliger ausfuehrung
US3867598A (en) * 1973-10-09 1975-02-18 Westinghouse Electric Corp Control switch
AT339991B (de) * 1974-02-08 1977-11-25 Schrack Elektrizitaets Ag E Fehlerstrom- bzw. fehlerspannungsschutzschalter od.dgl.
FR2288350A1 (fr) * 1974-10-16 1976-05-14 Saparel Mecanisme de commande, notamment pour disjoncteur
DE2808609C3 (de) * 1978-02-28 1980-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Niederspannungskippschalter
US4291291A (en) * 1979-09-18 1981-09-22 North American Philips Controls Corp. Circuit breaker provided with collapsible telescoping linkage
IT8223118V0 (it) * 1982-10-07 1982-10-07 Sace Spa Interruttore elettrico con arresto della corsa della leva di comando in caso di saldatura dei contatti.
DE3508110A1 (de) * 1985-03-07 1986-09-11 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Schaltschloss mit schnelleinschaltung

Also Published As

Publication number Publication date
JPH04230926A (ja) 1992-08-19
DE59101700D1 (de) 1994-06-30
ES2053222T3 (es) 1994-07-16
CN1056183A (zh) 1991-11-13
AU7611291A (en) 1992-01-09
AU633425B2 (en) 1993-01-28
DE4013840A1 (de) 1991-10-31
CN1020521C (zh) 1993-05-05
DE9004883U1 (es) 1990-06-28
ATE106159T1 (de) 1994-06-15
EP0454963A1 (de) 1991-11-06

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