CA2421476A1 - Direct current load breaking contact point apparatus and switching mechanism therewith - Google Patents

Direct current load breaking contact point apparatus and switching mechanism therewith Download PDF

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Publication number
CA2421476A1
CA2421476A1 CA002421476A CA2421476A CA2421476A1 CA 2421476 A1 CA2421476 A1 CA 2421476A1 CA 002421476 A CA002421476 A CA 002421476A CA 2421476 A CA2421476 A CA 2421476A CA 2421476 A1 CA2421476 A1 CA 2421476A1
Authority
CA
Canada
Prior art keywords
contact point
direct current
weight
current load
breaking contact
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
CA002421476A
Other languages
French (fr)
Other versions
CA2421476C (en
Inventor
Tetsuya Mori
Kenji Funaki
Yasusuke Takahashi
Kozo Maenishi
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.)
Omron Corp
Original Assignee
Omron 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 Omron Corp filed Critical Omron Corp
Publication of CA2421476A1 publication Critical patent/CA2421476A1/en
Application granted granted Critical
Publication of CA2421476C publication Critical patent/CA2421476C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/04—Co-operating contacts of different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • 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
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2

Abstract

The invention intends to provide a direct current load breaking contact point constitution that can make and break an electrical circuit under both direct current loads of direct current resistance load and direct current inductance load over a long period of time. The direct current load breaking contact point constitution according to the invention comprises a movable contact point and a stationary contact point that face each other; wherein the movable contact point is made of AgSnO2In2O3 alloy that contains at least Ag, 8 to 15% by weight in total of metal oxides including SnO2 and In2O3, 6 to 10% by weight of SnO2 and 1 to 5% by weight of In2O3; the stationary contact point is made of AgZnO alloy that contains at least Ag and 7 to 11% by weight of ZnO; and polarity of a movable side is (+) and that of a stationary side is (-).
CA002421476A 2002-03-11 2003-03-10 Direct current load breaking contact point apparatus and switching mechanism therewith Expired - Fee Related CA2421476C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002065172A JP4089252B2 (en) 2002-03-11 2002-03-11 DC load contact structure and switch having the structure
JP65172/2002 2002-03-11

Publications (2)

Publication Number Publication Date
CA2421476A1 true CA2421476A1 (en) 2003-09-11
CA2421476C CA2421476C (en) 2008-04-22

Family

ID=27764460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002421476A Expired - Fee Related CA2421476C (en) 2002-03-11 2003-03-10 Direct current load breaking contact point apparatus and switching mechanism therewith

Country Status (7)

Country Link
US (1) US6934134B2 (en)
EP (1) EP1345243B1 (en)
JP (1) JP4089252B2 (en)
KR (1) KR100505188B1 (en)
CN (1) CN1215505C (en)
CA (1) CA2421476C (en)
DE (1) DE60300204T2 (en)

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Also Published As

Publication number Publication date
EP1345243A1 (en) 2003-09-17
US6934134B2 (en) 2005-08-23
EP1345243B1 (en) 2004-12-15
CN1444242A (en) 2003-09-24
CN1215505C (en) 2005-08-17
KR20030074267A (en) 2003-09-19
KR100505188B1 (en) 2005-08-05
CA2421476C (en) 2008-04-22
US20030184928A1 (en) 2003-10-02
DE60300204T2 (en) 2005-12-22
JP4089252B2 (en) 2008-05-28
JP2003263933A (en) 2003-09-19
DE60300204D1 (en) 2005-01-20

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