EP0035693A1 - Mécanisme de commutation pour appareils d'installation électrique - Google Patents

Mécanisme de commutation pour appareils d'installation électrique Download PDF

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Publication number
EP0035693A1
EP0035693A1 EP81101338A EP81101338A EP0035693A1 EP 0035693 A1 EP0035693 A1 EP 0035693A1 EP 81101338 A EP81101338 A EP 81101338A EP 81101338 A EP81101338 A EP 81101338A EP 0035693 A1 EP0035693 A1 EP 0035693A1
Authority
EP
European Patent Office
Prior art keywords
lever
projection
switching mechanism
release lever
electrical installation
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
EP81101338A
Other languages
German (de)
English (en)
Other versions
EP0035693B1 (fr
Inventor
Rudolf Sellner
Erhard Küster
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.)
BBC Brown Boveri AG Germany
Original Assignee
BBC Brown Boveri AG Germany
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 BBC Brown Boveri AG Germany filed Critical BBC Brown Boveri AG Germany
Priority to AT81101338T priority Critical patent/ATE5788T1/de
Publication of EP0035693A1 publication Critical patent/EP0035693A1/fr
Application granted granted Critical
Publication of EP0035693B1 publication Critical patent/EP0035693B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • 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

Definitions

  • the invention relates to a switching mechanism for an electric nstallationsschalter I, especially for a residual-current circuit breaker, having a latching point, at which a support portion is pressed against an opening lever resiliently against a contact area on a ratchet lever.
  • the trigger lever bears against the trigger pawl or vice versa, the trigger lever or the trigger pawl being pressed against the other pawl by means of a spring; If the latching point is released, the switching mechanism is triggered and the switch in question can trigger.
  • the edges of the release lever and the ratchet lever are straight.
  • certain bearing tolerances lead to unsyuntrical loads or surface pressures, which adversely affects the latching point.
  • the unleashing force is with frequent triggering and / or incorrect position of the latching parts relative to one another, for example relatively high due to the misalignment of a latching part due to unfavorable tolerances in the bearing; the linear latch or .
  • the asymmetrical latching also leads to strong abrasion in places and thus inevitably changed triggering forces.
  • the object of the invention is to design the latching point in such a way that asymmetrical supports are avoided.
  • This object is achieved in that the support area on the latch lever and / or on the release lever is convex towards the other.
  • Another embodiment of the invention can consist in that an edge of an approximately rectangular recess serves as a support area on the release lever that uflage Schemees for forming the A is provided on the ratchet lever a projection on this, the reaching into verklinktem state in the recess and that the edge of the recess against which the projection is pressed is convex.
  • a third embodiment can consist in that the projection is also convex towards the edge.
  • the advantages achieved with this configuration of the latching point are that the latching is symmetrical and the spherical configuration of at least one of the support edges compensates for the bearing tolerances of both the release lever and the latch lever.
  • the release forces are also kept constant and, with a suitable surface treatment, for example by nickel plating or by galvanizing one or the other part, greater surface protection and smaller frictional forces are achieved.
  • a ratchet lever 12 which has an extension 14, is mounted fixedly about an axis lo.
  • a trigger lever 18 is mounted around a further position 16, said trigger lever also being pressed in the direction of arrow F by means of a spring 20.
  • the spring 20 is a helical spring and is supported on the one hand on a projection 24 on the release lever 18 and on the other hand on the stationary stop 22. In the event of a release, the release lever 18 is moved in the opposite direction of the arrow F, whereby - also under the force of a spring - the latch lever is pivoted counterclockwise P and triggers the switching mechanism.
  • the latching point itself is new, i. H. the support point or the support point between the release lever 18 and the ratchet lever 12.
  • the release lever 18 has a rectangular window 26 into which the projection 14 of the ratchet lever 12 engages.
  • This projection 14 is convexly curved toward the lower edge 28, which serves as a supporting edge, so that the load or the force transmission is generated only by the curved line on the projection 14.

Landscapes

  • Breakers (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP81101338A 1980-03-06 1981-02-25 Mécanisme de commutation pour appareils d'installation électrique Expired EP0035693B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101338T ATE5788T1 (de) 1980-03-06 1981-02-25 Schaltwerk fuer elektrische installationsschaltgeraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3008533 1980-03-06
DE19803008533 DE3008533A1 (de) 1980-03-06 1980-03-06 Schaltwerk fuer elektrische installationsschaltgeraete

Publications (2)

Publication Number Publication Date
EP0035693A1 true EP0035693A1 (fr) 1981-09-16
EP0035693B1 EP0035693B1 (fr) 1984-01-04

Family

ID=6096394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101338A Expired EP0035693B1 (fr) 1980-03-06 1981-02-25 Mécanisme de commutation pour appareils d'installation électrique

Country Status (4)

Country Link
EP (1) EP0035693B1 (fr)
AT (1) ATE5788T1 (fr)
DE (1) DE3008533A1 (fr)
ES (1) ES256534Y (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0923102A2 (fr) * 1997-12-10 1999-06-16 Siemens Energy & Automation, Inc. Verrouillage intermédiaire pour disjoncteur à boítier moulé
FR2816105A1 (fr) * 2000-10-25 2002-05-03 Fuji Electric Co Ltd Mecanisme de coupure pour disjoncteur
EP3249674A1 (fr) * 2016-05-24 2017-11-29 Siemens Aktiengesellschaft Déclencheur et encliquetage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246098A (en) * 1964-03-13 1966-04-12 Square D Co Molded-case electric circuit breaker
EP0003967A1 (fr) * 1978-03-07 1979-09-19 Siemens Aktiengesellschaft Dispositif de loquet pour un interrupteur de puissance

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE495197C (de) * 1927-11-26 1931-04-25 Voigt & Haeffner Akt Ges UEberstromschalter mit Freiausloesung
DE1588378B2 (de) * 1967-10-17 1971-09-02 Klockner Moeller Elektnzitats GmbH, 5300 Bonn Verklinkungseinrichtung fuer elektrische selbstschalter
DE1989915U (de) * 1968-03-02 1968-07-25 Siemens Ag Elektrischer schalter mit verklinkbarem schaltmechanismus.
US3796980A (en) * 1972-07-31 1974-03-12 Westinghouse Electric Corp Disposable circuit breaker
US3808567A (en) * 1973-01-30 1974-04-30 A Maier Circuit breaker with improved resettable latch and trip means
DE2802925C2 (de) * 1978-01-24 1980-03-20 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Schaltmechanismus für Leitungsschutzschalter in Flachbauweise
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
DE3007244A1 (de) * 1980-02-27 1981-09-03 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltwerk fuer einen installationsschalter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246098A (en) * 1964-03-13 1966-04-12 Square D Co Molded-case electric circuit breaker
EP0003967A1 (fr) * 1978-03-07 1979-09-19 Siemens Aktiengesellschaft Dispositif de loquet pour un interrupteur de puissance

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0923102A2 (fr) * 1997-12-10 1999-06-16 Siemens Energy & Automation, Inc. Verrouillage intermédiaire pour disjoncteur à boítier moulé
EP0923102A3 (fr) * 1997-12-10 2000-10-04 Siemens Energy & Automation, Inc. Verrouillage intermédiaire pour disjoncteur à boítier moulé
FR2816105A1 (fr) * 2000-10-25 2002-05-03 Fuji Electric Co Ltd Mecanisme de coupure pour disjoncteur
EP3249674A1 (fr) * 2016-05-24 2017-11-29 Siemens Aktiengesellschaft Déclencheur et encliquetage
CN107424880A (zh) * 2016-05-24 2017-12-01 西门子公司 过载脱扣器
US10347454B2 (en) 2016-05-24 2019-07-09 Siemens Aktiengesellschaft Overload release

Also Published As

Publication number Publication date
ES256534U (es) 1981-07-01
DE3008533A1 (de) 1981-09-17
ES256534Y (es) 1981-12-16
ATE5788T1 (de) 1984-01-15
EP0035693B1 (fr) 1984-01-04
DE3008533C2 (fr) 1989-05-11

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