EP0744080B1 - Coupe-circuit basse tension a commutateur auxiliaire relatif - Google Patents

Coupe-circuit basse tension a commutateur auxiliaire relatif Download PDF

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Publication number
EP0744080B1
EP0744080B1 EP95905536A EP95905536A EP0744080B1 EP 0744080 B1 EP0744080 B1 EP 0744080B1 EP 95905536 A EP95905536 A EP 95905536A EP 95905536 A EP95905536 A EP 95905536A EP 0744080 B1 EP0744080 B1 EP 0744080B1
Authority
EP
European Patent Office
Prior art keywords
lever
switched
low
switch
condition
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
EP95905536A
Other languages
German (de)
English (en)
Other versions
EP0744080A1 (fr
Inventor
Uwe Linzenich
Andreas Baldewein
Bernd Howald
Volker Heins
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller 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 Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0744080A1 publication Critical patent/EP0744080A1/fr
Application granted granted Critical
Publication of EP0744080B1 publication Critical patent/EP0744080B1/fr
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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/465—Self-contained, easily replaceable microswitches
    • 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
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H2071/467—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts with history indication, e.g. of trip and/or kind of trip, number of short circuits etc.
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts

Definitions

  • the invention relates to a low-voltage circuit breaker with a relative auxiliary switch.
  • a relative auxiliary switch is to be understood as a signaling switch that only then is actuated when the generally multi-pole low-voltage circuit breaker is triggered.
  • the relative auxiliary switch is via a resilient intermediate member by a driver pin of the latchable support lever of the switch lock of the Low-voltage circuit breaker actuated.
  • the relative auxiliary switch via a spring-loaded lever shaft through the support lever of the key switch operated.
  • a low-voltage circuit breaker in which the prestressed actuating plunger of a relative auxiliary switch also via a resilient intermediate member is operated by the support lever.
  • the prestressed actuating plunger of a normal auxiliary switch i.e. one of the auxiliary switches signaling the position of the main contacts, via a further resilient intermediate member by a radial extension of the movable Main contacts carrying shift shaft is operated.
  • the latter solution can be however, do not apply to a relative auxiliary switch.
  • the disadvantage of the state of the Technology is that relative auxiliary switches in a complex and complicated manner controlled by the key switch. This makes multi-pole low-voltage circuit breakers additional and harmful exhaust openings between the in generally center pole connected to the key switch and a generally the receptacle for the relative auxiliary switch to be assigned to the outer pole avoid.
  • the invention is therefore based on the object, a simple and switch lock Indicate independent control of the relative auxiliary switch.
  • a low-voltage circuit breaker Relative auxiliary switch with a molded housing, in or on which the relative auxiliary switch is installed or attached, with interacting fixed and movable contacts per pole as well as with a switching shaft supporting the movable contacts solved by switching the low voltage circuit breaker, the on the one hand contains a rocker arm or similar actuation means and on the other hand opening and closing is operatively connected to the movable contacts and through Triggering means can be triggered, wherein the opening angle of the movable Contacts or the control shaft in the tripped state larger than in the switched-off state is, furthermore, a pivot lever mounted in the molded housing, which is in operative connection with a pretensioned actuating plunger of the relative auxiliary switch, and finally a radial extension arranged in this way on the selector shaft has that the pivot lever only in the triggered state acted upon.
  • the switch lock contains a toggle lever has a cam element on one end and the other lever end against the force of a spring mechanism, which is between one with the Rocker arm connected shift gate and the cam element attacks between the switched off and the switched on state pivotable and between the triggered and the switched off state portable against a lockable and unlockable Support lever supports, wherein the cam member in engagement with at least one Cam slot of the control shaft is located, which is designed so that the triggered state causes a larger opening angle than the switched-off state. Furthermore it is advantageous if the curvature of the cam slot bent to the movable contact greater than the curvature of the path of movement of the cam element between the triggered and the switched off state.
  • the toggle lever system of the proposed switch lock is composed of a toggle lever Cam slot and a toggle lever guided in it, which in the triggered state, a larger opening angle of the control shaft and thus the movable contacts can be achieved than in the normal switched off state. This is particularly due to a larger curvature of the cam slot compared to the Curvature of the path of movement of the cam element about the tilt axis of the support lever reached.
  • the toggle lever consists of a symmetrical pair of toggle levers, that at one end via the cam element designed as a connecting axis is connected in parallel spaced.
  • the area of application of the pivot lever for the extension opposite the operative connection area with the actuating plunger closer to the swivel axis.
  • the contact system 4 consists of a fixed Contact 8 and a movable contact 10, the movable contact 12 in and except in connection with a fixed contact 14 of the fixed contact 8 can be brought.
  • the movable contact 10 is pivotable about an axis 15 in one Transversely located shift shaft 18 and with their formed cam slot 16 with the switch lock 6 connected.
  • the switching lock 6 consists of a switching link 20, a support lever 22, a toggle lever 24, a spring force accumulator 26 and a Latching mechanism 28.
  • the shifting gate 20 on the one hand has one to be actuated Rocker arm 30 and is supported on the other hand with its leg end 32 pivotable in Lower part 2.
  • the support lever 22 is supported on the one hand with a wrap 34 on one stationary tilt axis 36 and is on the other hand via its latching surface 38 with the Latching mechanism 28 can be latched.
  • the toggle lever 24 is on the one hand Cam member 40 slidably guided in the cam slot 16 and is supported on the other hand, with its lever end 42 against the force of the spring force accumulator 26, the between the rocker arm end of the shift gate 20 and the cam member 40 engages, pivotable against an abutment 44 of the support lever 22.
  • the support lever 22 When pivoting the rocker arm 30 clockwise from the triggered in the switched off state, the support lever 22 is a driver element 46 of the Gear shift 20 also taken clockwise and on its latching surface 38 by a pawl 48 of the latching mechanism acted upon by a pawl spring 50 28 latched in a conventional manner.
  • the upper point of engagement of the spring force accumulator 26 When swiveling the Rocker arm 30 counterclockwise from the off state in the direction of switched on state, the upper point of engagement of the spring force accumulator 26 also pivoted counterclockwise, so that after exceeding the hyperextended position of the spring force accumulator 26 of the toggle lever in a clockwise direction Abutment 44 tilts, whereby the cam member 40 and the cam slot 16 that Contact system 4 is closed.
  • the contact system 4 takes when triggered, a larger opening angle between the movable Contact 10 and the fixed contact 8 as in the off state. This is caused in that the cam member 40 is rotatably slidable with the cam slot 16 is connected and the curvature of the movement path of the cam element 40, that occurs during the transition to the triggered state is smaller than the curvature of the cam slot 16 bent about axis 15.
  • a relative auxiliary switch 56 which is suitably in one for this provided recess 57 is fixed in the upper part 58 of the molded housing.
  • the extension 60 consists of a Area 62 in the form of a segment of a circle and goes on one side into one of the control shaft 18 forward-facing actuation lever 64 via.
  • a switch shaft 18 pointing actuating plunger 66 of the relative auxiliary switch 56 and the extension 60 is a one-armed pivot lever 68 arranged, the pivot axis 70 in one with the Upper part 58 connected lever bearing 72 is mounted.
  • the actuating plunger 66 is in the usual manner in one out of the auxiliary switch 56 externally facing direction spring-loaded so that when the Low-voltage circuit breaker in the manner shown in Fig. 4, the pivot lever 68 with its free end 74 on the circular segment-shaped region 62 of the Extension 60 is present.
  • the free end 74 of the pivot lever 68 slides on the periphery along the circular segment-shaped region 62 of the extension 60, so that no pivoting movement of the pivot lever 68 can take place.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (7)

  1. Disjoncteur basse tension à interrupteur auxiliaire relatif, comportant un boítier moulé (2, 58), dans ou sur lequel l'interrupteur auxiliaire relatif (56) est encastré ou appliqué, des contacts fixes et mobiles (8; 10) agissant conjointement par pôle ainsi qu'un arbre de commande (18) supportant les contacts mobiles (10), et présentant les caractéristiques suivantes:
    un verrou de maintien (6), contenant un levier basculant (30) ou un organe de manoeuvre similaire, d'une part, et d'autre part agissant en relation avec les contacts mobiles (10) pour provoquer l'ouverture et la fermeture, également déclenchable par organe de déclenchement, l'angle d'ouverture des contacts mobiles (10) ou de l'arbre de commande (18) étant plus important en état de déclenchement qu'en état de coupure;
    un levier pivotant (68) logé dans un boítier moulé (2, 58), ledit levier agissant en relation avec un taquet de manoeuvre (66) pré-tendu de l'interrupteur auxiliaire relatif (56);
    un prolongement radial (60) disposé sur l'arbre de commande (18) de manière à ne percuter le levier pivotant (68) qu'en état de déclenchement.
  2. Disjoncteur basse tension selon revendication 1, caractérisé en ce que
    le verrou de maintien (6) présente un levier coudé (24), lequel présente un élément en ergot (40) à l'une de ses extrémités et, pouvant pivoter entre l'état de coupure et l'état de connexion et être entraíné entre l'état de déclenchement et l'état de coupure, s'appuie avec l'autre extrémité de levier (42) contre un levier d'appui (22) encliquetable et décliquetable, contre la force d'un accumulateur d'énergie à ressort (26), lequel est accroché entre un coulisseau de commutation (20) relié au levier basculant (30) et l'élément en ergot (40);
    l'élément en ergot (40) est en prise avec au moins une fente d'ergot (16) de l'arbre de commande (18), ladite fente d'ergot étant formée de sorte que l'état de déclenchement provoque un angle d'ouverture supérieur à celui de l'état de coupure;
  3. Disjoncteur basse tension selon revendication 2, caractérisé en ce que la courbure de la fente d'ergot (16) incurvée vers le contact mobile (10), est supérieure à la courbure de la course de déplacement de l'élément en ergot (40) entre l'état de déclenchement et l'état de coupure.
  4. Disjoncteur basse tension selon revendication 2, caractérisé en ce que le levier coudé (24) consiste en une paire de leviers coudés symétriques , lesquels sont reliés à l'une de leurs extrémités par l'élément en ergot (40) formé comme axe de liaison et parallèlement espacés.
  5. Disjoncteur basse tension selon l'une des revendications 1 à 4, caractérisé en ce que la zone de percussion (76) du levier pivotant (68) par le prolongement (60) est rapprochée de l'axe de pivotement (70) par rapport à la zone d'action conjointe (78) avec le taquet de manoeuvre (66).
  6. Disjoncteur basse tension selon l'une des revendications 1 à 4, caractérisé en ce que le prolongement (60) présente pour l'état de connexion et l'état de coupure une zone en forme de segment de cercle (62) dirigée vers l'extrémité libre (74) du levier pivotant (68), allant sur un levier de percussion (64) pour l'état de déclenchement.
  7. Disjoncteur basse tension selon l'une des revendications 1 à 4, caractérisé en ce que le levier pivotant (68) est à un bras.
EP95905536A 1994-02-09 1995-01-13 Coupe-circuit basse tension a commutateur auxiliaire relatif Expired - Lifetime EP0744080B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4404073A DE4404073A1 (de) 1994-02-09 1994-02-09 Niederspannungs-Leistungsschalter mit Relativ-Hilfsschalter
DE4404073 1994-02-09
PCT/DE1995/000032 WO1995022161A1 (fr) 1994-02-09 1995-01-13 Coupe-circuit basse tension a commutateur auxiliaire relatif

Publications (2)

Publication Number Publication Date
EP0744080A1 EP0744080A1 (fr) 1996-11-27
EP0744080B1 true EP0744080B1 (fr) 1998-11-11

Family

ID=6509862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95905536A Expired - Lifetime EP0744080B1 (fr) 1994-02-09 1995-01-13 Coupe-circuit basse tension a commutateur auxiliaire relatif

Country Status (6)

Country Link
US (1) US5774031A (fr)
EP (1) EP0744080B1 (fr)
JP (1) JP3363905B2 (fr)
AT (1) ATE173354T1 (fr)
DE (2) DE4404073A1 (fr)
WO (1) WO1995022161A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754071C1 (de) * 1997-12-05 1999-07-15 Siemens Ag Schaltgeräteeinheit mit voreilendem Hilfsschalter
US6031438A (en) * 1998-10-16 2000-02-29 Airpax Corporation, Llc Mid trip stop for circuit breaker
DE10120783C1 (de) * 2001-04-23 2002-11-14 Siemens Ag Schaltschloss zum Verklinken eines Federspeichers
DE10214890C1 (de) * 2002-04-04 2003-05-08 Moeller Gmbh Fernbetätigter Schutzschalter mit Schaltstellungsanzeige und Sicherungsfunktion
DE202004012469U1 (de) * 2004-08-10 2006-01-19 Ellenberger & Poensgen Gmbh Schutzschalteranordnung
DE102006051807B8 (de) * 2006-11-03 2008-06-26 Abb Ag Elektrischer Schalter
DE102011077285A1 (de) * 2011-06-09 2012-12-13 Siemens Aktiengesellschaft Hilfsschalter für einen elektrischen Schalter

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492468B1 (fr) * 1968-07-15 1974-01-21
US3863042A (en) * 1973-08-01 1975-01-28 Heinemann Electric Co Circuit breaker with electrical and mechanical trip indication
DE2814071C2 (de) * 1978-03-30 1979-10-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Niederspannungs-Leistungsschalter mit einem Meldeschalter
DE2814070C2 (de) * 1978-03-30 1979-12-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Niederspannungs-Leistungsschalter mit einem Isolierstoffgehäuse und einem Hilfsschalter
US4209760A (en) * 1978-05-25 1980-06-24 Gould Inc. Circuit breaker and accessory devices therefor
JPS56122245U (fr) * 1980-02-19 1981-09-17
EP0199579A3 (fr) * 1985-04-22 1987-09-16 Airpax Corporation Mécanisme d'actionnement d'un interrupteur auxiliaire
US4736174A (en) * 1987-04-23 1988-04-05 General Electric Company Molded case circuit breaker operating mechanism
US4801906A (en) * 1987-10-19 1989-01-31 General Electric Company Molded case circuit breaker trip indicator unit
US4928079A (en) * 1988-07-25 1990-05-22 Westinghouse Electric Corp. Circuit breaker auxiliary switch assembly
JPH0770284B2 (ja) * 1989-07-06 1995-07-31 富士電機株式会社 回路遮断器の警報スイッチ操作装置
DE4222965C1 (de) * 1992-07-13 1993-11-25 Kloeckner Moeller Gmbh Kontaktsystem für einen Schalter, insbesondere für einen Leistungs- bzw. Schutzschalter
DE9302252U1 (fr) * 1993-02-17 1993-04-22 Kloeckner-Moeller Gmbh, 5300 Bonn, De
FR2706220B1 (fr) * 1993-06-07 1995-07-21 Telemecanique Appareil interrupteur de protection à mécanisme de commande.
US5508670A (en) * 1994-11-28 1996-04-16 Eaton Corporation Trip interlock assembly for a circuit breaker

Also Published As

Publication number Publication date
ATE173354T1 (de) 1998-11-15
DE4404073A1 (de) 1995-08-10
WO1995022161A1 (fr) 1995-08-17
JP3363905B2 (ja) 2003-01-08
DE59504222D1 (de) 1998-12-17
EP0744080A1 (fr) 1996-11-27
JPH09510819A (ja) 1997-10-28
US5774031A (en) 1998-06-30

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