EP0798756B1 - Betätigungsmechanismus für elektrischen Schutzschalter mit grossen Öffnungswinkel - Google Patents

Betätigungsmechanismus für elektrischen Schutzschalter mit grossen Öffnungswinkel Download PDF

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Publication number
EP0798756B1
EP0798756B1 EP97410035A EP97410035A EP0798756B1 EP 0798756 B1 EP0798756 B1 EP 0798756B1 EP 97410035 A EP97410035 A EP 97410035A EP 97410035 A EP97410035 A EP 97410035A EP 0798756 B1 EP0798756 B1 EP 0798756B1
Authority
EP
European Patent Office
Prior art keywords
plate
contact arm
contacts
spindle
opening
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
EP97410035A
Other languages
English (en)
French (fr)
Other versions
EP0798756A1 (de
Inventor
Philippe Delcambre
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0798756A1 publication Critical patent/EP0798756A1/de
Application granted granted Critical
Publication of EP0798756B1 publication Critical patent/EP0798756B1/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
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • 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
    • H01H71/503—Means for increasing the opening stroke of the contacts

Definitions

  • a mechanism of a circuit breaker of the prior art is illustrated in Figures 1 to 3.
  • the mechanism comprises a support lever of the movable contact arm which is articulated on the pivot of the rotary drive plate.
  • the trigger lever is also articulated on the plate, but on an axis offset from the pivot.
  • the connecting rod between the handle and the attachment hook of the plate is not shown for reasons of clarity.
  • the lever and the trip lever respectively comprise a first transmission means and a second transmission means capable of transmitting position and energy information to the auxiliary modules.
  • Auxiliary modules A may be triggering or signaling modules, which are adaptable to a large side face of the circuit breaker housing.
  • the first transmission means of the handle of the circuit breaker is mechanically connected to the handle of the auxiliary module A by a first control link.
  • the mechanism according to the invention is characterized in that the pivot axis of the arm of contact is secured to the housing and through an opening of the plate with a shift predetermined with respect to the pivot, and that the platen is provided with a drive abutment separated respectively from the axis of the contact arm by a first radius, and from the pivot by a second ray, the difference in length of the rays allowing an opening angle amplified contact arm, which is greater than the angular travel of the platen.
  • the differential displacement between the contact arm and the plate due to the decentering of the axis pivoting of the arm makes it possible to increase the isolation distance without modifying the stroke angle of the plate which remains adapted to the establishment of standard auxiliaries.
  • the mechanism 40 is provided with a movable contact arm 12 with a large opening angle ⁇ obtained by decentering the axis 42 of the contact arm 12 relative to the pivot 14 of the drive plate 16.
  • the double plate 16 is constituted by a pair of elements 16a, 16b each having a pivot 14 engaged in a bearing 44a, 44b of the insulating housing 46.
  • the triggering lever 18 is pivotally mounted on an axis 48 of the plate 16, and cooperates with a triggering member 50 controlled by a pallet 52 of the electromagnetic release 54.
  • the plate 16 is equipped with a driving abutment 70 intended to come into engagement against a bearing surface 72 of the support lever 11 to move it to the position opening.
  • the radius R1 formed between the axis 42 of the control arm 12 and the stop 70 is less than the radius R2 between the pivot 14 of the plate 16 and the same stop 70.
  • the separation of the contacts 34, 36 is effected following a displacement of the plate 16 towards the open position, which can intervene manually by the intervention of the lever 20, or automatically, following the triggering after the detection of a default.
  • the driving abutment 70 abuts the bearing surface 72 of the support lever 11, and drives the latter in the counterclockwise direction to the open position of the contacts 34, 36 ( Figure 7).
  • the difference in length of the radii R1 and R2 conditions an amplified aperture angle ⁇ of the contact arm 12, while the plate 16 performs a standard pivoting movement whose stroke ⁇ corresponds to that of FIG. amplification of the opening movement of the contact arm 12 makes it possible to obtain a greater isolation distance, whereas the angle of rotation ⁇ of the plate 16 remains adapted to the kinematics of the transmission means 22, 24 of the handle 26 and the trip lever 18.
  • the housing of the axis 42 in the oblong slot 62 of the plate 16 causes a lever effect exerted on the movable contact arm 12, capable of causing the contacts 34 to tear out, 36 from a state of welding of these at point S.
  • the axis 42 of pivoting is normally biased by the spring 66 towards the right end of the opening 62 oblong. From a welding state of the contacts 34, 36, the displacement of the handle 20 to the open position causes a slight upward movement of the contact arm 12, and the displacement to the left of the axis 42 in the opening 62, to from the initial position 0 to a first position 1.
  • the inclination of the opening 62 makes it possible to obtain in addition to the leverage effect, an additional shearing effect at the weld S, following the displacement of the axis 42 from the initial position 0 to a second position 2.
  • This effect of shearing on the other hand causes a sliding of the movable contact 36 with the contact fixed 34, allowing a self-cleaning of the contacts.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Claims (4)

  1. Schaltmechanismus eines elektrischen Leistungsschalters mit Isolierstoffgehäuse (46), das ein Kontaktpaar aus einem feststehenden Kontakt (34) und einem bewegbaren Kontakt (36) enthält, wobei der genannte bewegbare Kontakt von einem Kontaktarm (12) getragen wird, der zwischen der Einschaltstellung und der Ausschaltstellung durch den Mechanismus (40) verschoben wird, und der genannte Mechanismus
    einen Schaltknebel (20) mit einem ersten Übertragungsmittel (22) zur Übertragung einer Stellungs- und/oder Steuerinformation,
    eine Mitnehmerscheibe (16) zur Mitführung eines Stützhebels (11) des Kontaktarms (12), welche Scheibe (16) zur Definition einer ersten Winkelverschiebung (α) drehbar auf einem Drehzapfen (14) gelagert ist,
    eine zwischen der Scheibe (16) und einer an den Schaltknebel (20) angekoppelten Stange (56) angeordnete, unterbrechbare mechanische Verbindung, welche Verbindung von einem Auslösehebel (18) angesteuert wird, der seinerseits von einem Auslöseorgan betätigt wird, um im Fehlerfall die Unterbrechung der mechanischen Verbindung und die daraus resultierende automatische Auslösung des Mechanismus (40) zu bewirken,
    sowie ein zweites am Auslösehebel (18) ausgebildetes Übertragungsmittel (24) zur Übertragung einer Energie- und/oder Steuerinformation umfaßt,
    dadurch gekennzeichnet, daß die Schwenkachse (42) des Kontaktarms (12) fest mit dem Gehäuse (46) verbunden ist und eine um ein bestimmtes Maß in bezug zum Drehzapfen (14) versetzt angeordnete, in der Scheibe (16) ausgebildete Öffnung (62) durchragt, und daß an der Scheibe (16) ein Mitnehmeranschlag (70) ausgebildet ist, der in einem ersten Abstand (R1) von der Achse (42) des Kontaktarms (12) und in einem zweiten Abstand (R2) vom Drehzapfen (14) angeordnet ist, wobei die Längendifferenz zwischen den beiden Abständen (R1, R2) einen erweiterten Öffnungswinkel (β)des Kontaktarms (12) ermöglicht, der größer ist als die Winkelverschiebung (α) der Scheibe (16).
  2. Schaltmechanismus nach Anspruch 1, dadurch gekennzeichnet, daß die in der Scheibe (16) ausgebildete Öffnung (62) zur Durchführung der Achse (42) eine längliche Form aufweist, so daß auf den Kontaktarm (12) eine Hebelwirkung in Richtung der Trennstellung der Kontakte (34, 36) ausgeübt wird.
  3. Schaltmechanismus nach Anspruch 2, dadurch gekennzeichnet, daß die in der Scheibe (16) ausgebildete Öffnung (62) in einer bestimmten Richtung geneigt ist und so eine zusätzliche Scherwirkung ermöglicht, die eine Selbstreinigung der Kontakte erlaubt.
  4. Schaltmechanismus nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Drehzapfen (14) der Scheibe (16) zwischen der Schwenkachse (42) des Kontaktarms (12) und dem bewegbaren Kontakt (36) angeordnet ist und daß die Gelenkachse (48) des Auslösehebels (18) auf der Scheibe (16) angeordnet ist.
EP97410035A 1996-03-29 1997-03-19 Betätigungsmechanismus für elektrischen Schutzschalter mit grossen Öffnungswinkel Expired - Lifetime EP0798756B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604276A FR2746957B1 (fr) 1996-03-29 1996-03-29 Mecanisme de commande d'un disjoncteur a grand angle d'ouverture
FR9604276 1996-03-29

Publications (2)

Publication Number Publication Date
EP0798756A1 EP0798756A1 (de) 1997-10-01
EP0798756B1 true EP0798756B1 (de) 2005-05-04

Family

ID=9490935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410035A Expired - Lifetime EP0798756B1 (de) 1996-03-29 1997-03-19 Betätigungsmechanismus für elektrischen Schutzschalter mit grossen Öffnungswinkel

Country Status (14)

Country Link
EP (1) EP0798756B1 (de)
CN (1) CN1083611C (de)
BR (1) BRPI9701509B8 (de)
CZ (1) CZ287559B6 (de)
DE (1) DE69733168T2 (de)
EA (1) EA000520B1 (de)
ES (1) ES2242210T3 (de)
FR (1) FR2746957B1 (de)
HU (1) HU221673B1 (de)
ID (1) ID16415A (de)
MY (1) MY123088A (de)
PL (1) PL184352B1 (de)
TR (1) TR199700248A3 (de)
ZA (1) ZA972539B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500494A (zh) * 2014-11-26 2015-04-08 东华大学 适用于狭小空间的气缸行程放大机构及其工作方法
CN110120629A (zh) * 2018-02-06 2019-08-13 Ls产电株式会社 具有接地开关的开关设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ299994B6 (cs) * 2003-10-24 2009-01-14 Jovean & Rogy Electrical Holding Co., Ltd Spouštový mechanismus jistice
FR2914485B1 (fr) * 2007-03-29 2009-04-24 Schneider Electric Ind Sas Dispositif de commande d'un appareil de protection electrique et appareil de protection electrique la comportant
CN102426999B (zh) * 2011-09-13 2014-11-19 浙江正泰电器股份有限公司 模数化断路器的操作机构
CN103021748B (zh) * 2012-12-28 2015-04-22 常熟开关制造有限公司(原常熟开关厂） 大断口断路器
JP2015002012A (ja) * 2013-06-13 2015-01-05 パナソニックＩｐマネジメント株式会社 接点装置及び回路遮断器
US10438754B2 (en) * 2017-11-15 2019-10-08 Carling Technologies, Inc. Low profile circuit breaker with self cleaning contacts
RU186711U1 (ru) * 2018-11-27 2019-01-30 Общество с ограниченной ответственностью "МФК ТЕХЭНЕРГО" Выключатель автоматический
CN118392111B (zh) * 2024-06-27 2024-08-23 国网山东省电力公司日照供电公司 隔离开关合闸角度测量装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616583B1 (fr) * 1987-06-09 1995-01-06 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0570647B1 (de) * 1992-05-13 1994-03-02 Hager Electro S.A. Schaltschloss für Schutzschalter und Schutzschalter, mit diesem integriert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500494A (zh) * 2014-11-26 2015-04-08 东华大学 适用于狭小空间的气缸行程放大机构及其工作方法
CN104500494B (zh) * 2014-11-26 2016-08-24 东华大学 适用于狭小空间的气缸行程放大机构及其工作方法
CN110120629A (zh) * 2018-02-06 2019-08-13 Ls产电株式会社 具有接地开关的开关设备

Also Published As

Publication number Publication date
TR199700248A2 (xx) 1999-09-21
ZA972539B (en) 1997-09-29
PL184352B1 (pl) 2002-10-31
CZ97097A3 (cs) 1998-12-16
HU9700618D0 (en) 1997-05-28
HU221673B1 (hu) 2002-12-28
DE69733168D1 (de) 2005-06-09
DE69733168T2 (de) 2006-01-12
HUP9700618A2 (hu) 1998-01-28
EA199700029A1 (ru) 1997-09-30
MY123088A (en) 2006-05-31
FR2746957A1 (fr) 1997-10-03
FR2746957B1 (fr) 1998-06-19
BR9701509A (pt) 1998-06-30
EA000520B1 (ru) 1999-10-28
BRPI9701509B8 (pt) 2016-07-05
PL319151A1 (en) 1997-10-13
ES2242210T3 (es) 2005-11-01
CN1083611C (zh) 2002-04-24
BR9701509B1 (pt) 2009-05-05
HUP9700618A3 (en) 1999-11-29
EP0798756A1 (de) 1997-10-01
CZ287559B6 (en) 2000-12-13
CN1164116A (zh) 1997-11-05
ID16415A (id) 1997-09-25
TR199700248A3 (tr) 1999-09-21

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