EP2362400A3 - Electrical contact and switch device using same - Google Patents

Electrical contact and switch device using same Download PDF

Info

Publication number
EP2362400A3
EP2362400A3 EP11154050A EP11154050A EP2362400A3 EP 2362400 A3 EP2362400 A3 EP 2362400A3 EP 11154050 A EP11154050 A EP 11154050A EP 11154050 A EP11154050 A EP 11154050A EP 2362400 A3 EP2362400 A3 EP 2362400A3
Authority
EP
European Patent Office
Prior art keywords
particles
metal
electrical contact
same
switch device
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.)
Withdrawn
Application number
EP11154050A
Other languages
German (de)
French (fr)
Other versions
EP2362400A2 (en
Inventor
Shigeru Kikuchi
Ayumu Morita
Takashi Sato
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP2362400A2 publication Critical patent/EP2362400A2/en
Publication of EP2362400A3 publication Critical patent/EP2362400A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/025—Composite material having copper as the basic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

An electrical contact made of a sintered body comprising particles of a refractory metal selected from the group consisting of C, Mo and W, particles of copper with an electrical conductivity of 95 % or more of an oxygen free pure copper, and particles of an easily oxidizable metal having a free energy for oxide formation lower than those of the refractory metal and the high conductive metal, and a melting point of the easily oxidizable metal being high than that of the high conductive metal, wherein the particles of copper bind the particles of the refractory metal and easily oxidizable metal.
EP11154050A 2010-02-17 2011-02-10 Electrical contact and switch device using same Withdrawn EP2362400A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010031934A JP2011171023A (en) 2010-02-17 2010-02-17 Electric contact and electric power switch using it

Publications (2)

Publication Number Publication Date
EP2362400A2 EP2362400A2 (en) 2011-08-31
EP2362400A3 true EP2362400A3 (en) 2011-10-12

Family

ID=44022891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11154050A Withdrawn EP2362400A3 (en) 2010-02-17 2011-02-10 Electrical contact and switch device using same

Country Status (3)

Country Link
EP (1) EP2362400A3 (en)
JP (1) JP2011171023A (en)
CN (1) CN102162043A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6382069B2 (en) * 2014-10-30 2018-08-29 株式会社日立産機システム Switchgear

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084351A (en) *
US3184835A (en) * 1961-10-02 1965-05-25 Handy & Harman Process for internally oxidationhardening alloys, and alloys and structures made therefrom

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200228U (en) * 1986-06-10 1987-12-19
EP0452480A4 (en) * 1989-11-09 1993-03-17 Procedyne Corporation Spray conversion process for the production of nanophase composite powders
US6103392A (en) * 1994-12-22 2000-08-15 Osram Sylvania Inc. Tungsten-copper composite powder
JP3794042B2 (en) 1995-10-13 2006-07-05 住友電気工業株式会社 Method for producing composite alloy member
JP4249356B2 (en) * 1999-12-28 2009-04-02 株式会社東芝 Electrical contact material
JP2002327232A (en) * 2001-04-27 2002-11-15 Toshiba Corp Composite material for electrical contact, manufacturing method therefor, and electrical switching device
JP2003147407A (en) 2001-11-08 2003-05-21 Hitachi Ltd Electric contact, its manufacturing method, and vacuum valve and vacuum circuit breaker using the same
KR100446985B1 (en) * 2001-11-20 2004-09-01 학교법인 한양학원 A PREPARATION OF W-Cu COMPOSITE POWDER
JP2004211192A (en) 2003-01-09 2004-07-29 Hitachi Ltd Electrode for vacuum valve, and vacuum valve and vacuum breaker obtained by using the same
TW200425192A (en) * 2003-01-09 2004-11-16 Hitachi Ltd Electrode for vacuum interrupter, vacuum interrupter using the same and vacuum circuit-breaker
FR2877136B1 (en) * 2004-10-27 2006-12-15 Areva T & D Sa TRAINING CINEMATICS IN A HYBRID CIRCUIT BREAKER
KR100740801B1 (en) * 2005-05-02 2007-07-19 정운태 Distribution board embedded panel transformer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084351A (en) *
US3184835A (en) * 1961-10-02 1965-05-25 Handy & Harman Process for internally oxidationhardening alloys, and alloys and structures made therefrom

Also Published As

Publication number Publication date
CN102162043A (en) 2011-08-24
JP2011171023A (en) 2011-09-01
EP2362400A2 (en) 2011-08-31

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