EP1168391A4 - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
EP1168391A4
EP1168391A4 EP00900171A EP00900171A EP1168391A4 EP 1168391 A4 EP1168391 A4 EP 1168391A4 EP 00900171 A EP00900171 A EP 00900171A EP 00900171 A EP00900171 A EP 00900171A EP 1168391 A4 EP1168391 A4 EP 1168391A4
Authority
EP
European Patent Office
Prior art keywords
movable element
pin
lateral wall
contact arm
element pin
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
EP00900171A
Other languages
German (de)
French (fr)
Other versions
EP1168391A1 (en
EP1168391B1 (en
Inventor
Hiroshi Okashita
Junichi Kawakami
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1168391A1 publication Critical patent/EP1168391A1/en
Publication of EP1168391A4 publication Critical patent/EP1168391A4/en
Application granted granted Critical
Publication of EP1168391B1 publication Critical patent/EP1168391B1/en
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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • 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
    • H01H2071/0292—Housing or frames containing grooves or slots for guiding movable parts
    • 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
    • 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
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • 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
    • H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts

Landscapes

  • Breakers (AREA)

Abstract

A circuit breaker having a contact arm for rotatably holding a movable element by a movable element pin, wherein the lateral wall of a casing opposed to the front end of the movable element pin is formed with an inclined surface such that when the movable element is in the open circuit position, there is a predetermined clearance between the front end of the movable element pin and the lateral wall of the casing and when the movable element is in the closed circuit position, the clearance between the front end of the movable element pin and the lateral wall is very small. A friction-reducing member is placed on the lateral wall of the casing opposed to the front end of the movable element pin, or the front end of the movable element pin is made spherical. Further, installed between the contact arm and the contact arm pin is a tubular bushing for minimizing the play therebetween so as to prevent the transverse movement of the movable element.
EP00900171A 2000-01-11 2000-01-11 Circuit breaker Expired - Lifetime EP1168391B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/000076 WO2001052289A1 (en) 2000-01-11 2000-01-11 Circuit breaker

Publications (3)

Publication Number Publication Date
EP1168391A1 EP1168391A1 (en) 2002-01-02
EP1168391A4 true EP1168391A4 (en) 2003-08-13
EP1168391B1 EP1168391B1 (en) 2005-11-30

Family

ID=11735563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00900171A Expired - Lifetime EP1168391B1 (en) 2000-01-11 2000-01-11 Circuit breaker

Country Status (8)

Country Link
EP (1) EP1168391B1 (en)
JP (1) JP4329922B2 (en)
KR (1) KR100447439B1 (en)
CN (1) CN1189904C (en)
DE (1) DE60024426T2 (en)
ES (1) ES2249243T3 (en)
TW (1) TW512380B (en)
WO (1) WO2001052289A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100359618C (en) * 2004-01-28 2008-01-02 三菱电机株式会社 Circuit breaker
KR100835017B1 (en) 2006-07-27 2008-06-03 미쓰비시덴키 가부시키가이샤 Breaker
JP2009134995A (en) * 2007-11-30 2009-06-18 Mitsubishi Electric Corp Air circuit breaker
KR200469351Y1 (en) * 2009-09-11 2013-10-07 현대중공업 주식회사 structure of guide ring and groove

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04118825A (en) * 1990-09-07 1992-04-20 Mitsubishi Electric Corp Braker
US5146194A (en) * 1988-10-12 1992-09-08 Westinghouse Electric Corp. Screw adjustable clinch joint with bosses
US5898146A (en) * 1997-09-18 1999-04-27 Eaton Corporation Molded case circuit breaker with modular crossbar
JPH11306950A (en) * 1998-04-21 1999-11-05 Mitsubishi Electric Corp Circuit breaker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2965332B2 (en) * 1990-07-10 1999-10-18 テンパール工業株式会社 Circuit breaker
US5093544A (en) * 1991-01-18 1992-03-03 General Electric Company Molded case circuit breaker movable contact arm mounting arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146194A (en) * 1988-10-12 1992-09-08 Westinghouse Electric Corp. Screw adjustable clinch joint with bosses
JPH04118825A (en) * 1990-09-07 1992-04-20 Mitsubishi Electric Corp Braker
US5898146A (en) * 1997-09-18 1999-04-27 Eaton Corporation Molded case circuit breaker with modular crossbar
JPH11306950A (en) * 1998-04-21 1999-11-05 Mitsubishi Electric Corp Circuit breaker

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 372 (E - 1246) 11 August 1992 (1992-08-11) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *
See also references of WO0152289A1 *

Also Published As

Publication number Publication date
CN1342324A (en) 2002-03-27
WO2001052289A1 (en) 2001-07-19
KR20010108328A (en) 2001-12-07
JP4329922B2 (en) 2009-09-09
DE60024426D1 (en) 2006-01-05
TW512380B (en) 2002-12-01
CN1189904C (en) 2005-02-16
ES2249243T3 (en) 2006-04-01
EP1168391A1 (en) 2002-01-02
KR100447439B1 (en) 2004-09-04
EP1168391B1 (en) 2005-11-30
DE60024426T2 (en) 2006-08-10

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