EP1124244A3 - Rotary operating mechanism for switchgear - Google Patents

Rotary operating mechanism for switchgear Download PDF

Info

Publication number
EP1124244A3
EP1124244A3 EP01102773A EP01102773A EP1124244A3 EP 1124244 A3 EP1124244 A3 EP 1124244A3 EP 01102773 A EP01102773 A EP 01102773A EP 01102773 A EP01102773 A EP 01102773A EP 1124244 A3 EP1124244 A3 EP 1124244A3
Authority
EP
European Patent Office
Prior art keywords
rotary
permanent magnet
end positions
rotary core
resilience
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
EP01102773A
Other languages
German (de)
French (fr)
Other versions
EP1124244B1 (en
EP1124244A2 (en
Inventor
Toshiharu Yamazaki
Tadashi Tokumasu
Yoshinobu Ishikawa
Shin Murakami
Tetsushi Koshiyama
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Publication of EP1124244A2 publication Critical patent/EP1124244A2/en
Publication of EP1124244A3 publication Critical patent/EP1124244A3/en
Application granted granted Critical
Publication of EP1124244B1 publication Critical patent/EP1124244B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2263—Polarised relays comprising rotatable armature, rotating around central axis perpendicular to the main plane of the armature

Abstract

A rotary mechanism for operating switchgear has a fixed core (51), a rotary core (52) rotatable within a rotation range limited by end positions corresponding to switchgear open and closed positions, a spring unit for accumulating resilience when the rotary core (52) is rotated to any one of the end positions, a permanent magnet (5) for generating attraction greater than the resilience of the spring unit, to hold the rotary core (52) at any one of the end positions, and an electromagnetic coil (4A,4B) for forming, when the rotary core is at one of the end positions, a magnetic path to weaken the attraction of the permanent magnet lower than the resilience of the spring unit so that the rotary core (52) may be rotated to the other end position where the permanent magnet (5) and electromagnetic coil form magnetic paths oriented in the same direction. This rotary operating mechanism has a wide application range, a bistable characteristics, a permanent magnet attraction switching function, and a long switching stroke.
EP20010102773 2000-02-10 2001-02-08 Rotary operating mechanism for switchgear Expired - Lifetime EP1124244B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000033892 2000-02-10
JP2000033892 2000-02-10
JP2000132222 2000-05-01
JP2000132222A JP4223657B2 (en) 2000-02-10 2000-05-01 Rotating operation mechanism of switch

Publications (3)

Publication Number Publication Date
EP1124244A2 EP1124244A2 (en) 2001-08-16
EP1124244A3 true EP1124244A3 (en) 2001-12-19
EP1124244B1 EP1124244B1 (en) 2008-11-19

Family

ID=26585230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010102773 Expired - Lifetime EP1124244B1 (en) 2000-02-10 2001-02-08 Rotary operating mechanism for switchgear

Country Status (4)

Country Link
EP (1) EP1124244B1 (en)
JP (1) JP4223657B2 (en)
CN (1) CN1258789C (en)
DE (1) DE60136580D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10261811B4 (en) * 2002-12-19 2005-01-20 Siemens Ag Electromagnetic drive
US7525643B2 (en) * 2005-09-19 2009-04-28 Asml Netherlands B.V. Lithographic apparatus, and mechanism
WO2008000022A1 (en) * 2006-06-26 2008-01-03 Schneider Electric (Australia) Pty Limited Rotary switch interlock
EP2234251B1 (en) 2008-01-17 2017-11-15 Mitsubishi Electric Corporation Three stable oscillating electromagnetic actuator
JP5124529B2 (en) * 2009-06-03 2013-01-23 三菱電機株式会社 Electromagnetic actuator
RU2762663C1 (en) * 2021-04-19 2021-12-21 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Limit switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035135A (en) * 1955-06-21 1962-05-15 Daco Instr Company Relays and solenoids
US4329672A (en) * 1977-01-29 1982-05-11 Elektro-Mechanik Gmbh Polarized electromagnetic drive for a limited operating range of a control element
FR2666927A1 (en) * 1990-09-14 1992-03-20 Cartier Systemes G Electromagnetic relay
US5115158A (en) * 1987-12-23 1992-05-19 Aerospatiale Societe Nationale Industrielle Electric motor with magnetic locking abutment member and heat shield for a space vehicle operated by a motor of this kind
EP0867903A2 (en) * 1997-03-25 1998-09-30 Kabushiki Kaisha Toshiba Operation apparatus of circuit breaker
FR2793944A1 (en) * 1999-05-20 2000-11-24 Schneider Electric Ind Sa Circuit breaker opening/closing command mechanism having permanent magnet/winding and rotating armature stop positions moving.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035135A (en) * 1955-06-21 1962-05-15 Daco Instr Company Relays and solenoids
US4329672A (en) * 1977-01-29 1982-05-11 Elektro-Mechanik Gmbh Polarized electromagnetic drive for a limited operating range of a control element
US5115158A (en) * 1987-12-23 1992-05-19 Aerospatiale Societe Nationale Industrielle Electric motor with magnetic locking abutment member and heat shield for a space vehicle operated by a motor of this kind
FR2666927A1 (en) * 1990-09-14 1992-03-20 Cartier Systemes G Electromagnetic relay
EP0867903A2 (en) * 1997-03-25 1998-09-30 Kabushiki Kaisha Toshiba Operation apparatus of circuit breaker
FR2793944A1 (en) * 1999-05-20 2000-11-24 Schneider Electric Ind Sa Circuit breaker opening/closing command mechanism having permanent magnet/winding and rotating armature stop positions moving.

Also Published As

Publication number Publication date
JP2001297912A (en) 2001-10-26
EP1124244B1 (en) 2008-11-19
DE60136580D1 (en) 2009-01-02
CN1312568A (en) 2001-09-12
EP1124244A2 (en) 2001-08-16
JP4223657B2 (en) 2009-02-12
CN1258789C (en) 2006-06-07

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