EP0365879A3 - Electric contact with base metal - Google Patents

Electric contact with base metal Download PDF

Info

Publication number
EP0365879A3
EP0365879A3 EP19890118329 EP89118329A EP0365879A3 EP 0365879 A3 EP0365879 A3 EP 0365879A3 EP 19890118329 EP19890118329 EP 19890118329 EP 89118329 A EP89118329 A EP 89118329A EP 0365879 A3 EP0365879 A3 EP 0365879A3
Authority
EP
European Patent Office
Prior art keywords
base metal
contact
welded
preformed
contact material
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
EP19890118329
Other languages
German (de)
French (fr)
Other versions
EP0365879A2 (en
EP0365879B1 (en
Inventor
Mitsuo C/O Fuji Electric Co. Ltd. Sunaga
Kiyoshi C/O Fuji Electric Co. Ltd. Sekiguchi
Hisaji C/O Fuji Electric Co. Ltd. Shinohara
Akihiro C/O Fuji Electric Co. Ltd. Takahashi
Hiroshi C/O Fuji Electric Co. Ltd. Hikita
Takashi C/O Tokuriki Honten Co. Ltd. Nara
Sadao C/O Tokuriki Honten Co. Ltd. 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.)
Tokuriki Honten Co Ltd
Fuji Electric Co Ltd
Original Assignee
Tokuriki Honten Co Ltd
Fuji Electric Co 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
Priority claimed from JP1217752A external-priority patent/JP2662895B2/en
Application filed by Tokuriki Honten Co Ltd, Fuji Electric Co Ltd filed Critical Tokuriki Honten Co Ltd
Publication of EP0365879A2 publication Critical patent/EP0365879A2/en
Publication of EP0365879A3 publication Critical patent/EP0365879A3/en
Application granted granted Critical
Publication of EP0365879B1 publication Critical patent/EP0365879B1/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
    • H01H1/02—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H01H11/043—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by resistance welding

Abstract

An electric contact with a base metal used as a switch wherein the non-welded peripheral portion of the contact is prevented from bow-like bonding and from peeling off. The electric contact with a base metal having a contact promoting shapeis is formed by die forging of a contact material joined to the base metal by resistance welding. The composite contact material is prepared by coating the core material of Ag-oxide contact material with non-oxide contact material. The side of the material in contact with the base metal is of non-oxide contact material. The contact material may be pressed to fill a groove preformed in the base metal, welded to protrusions preformed in the base metal, welded to the bottom of a cut preformed in the base metal, or welded to bottoms of recesses preformed in the base metal.
EP19890118329 1988-10-03 1989-10-03 Electric contact with base metal Expired - Lifetime EP0365879B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP24952288 1988-10-03
JP249522/88 1988-10-03
JP8092/89 1989-01-17
JP809289 1989-01-17
JP217752/89 1989-08-24
JP1217752A JP2662895B2 (en) 1988-10-03 1989-08-24 Electrical contacts with base metal

Publications (3)

Publication Number Publication Date
EP0365879A2 EP0365879A2 (en) 1990-05-02
EP0365879A3 true EP0365879A3 (en) 1991-07-03
EP0365879B1 EP0365879B1 (en) 1996-01-03

Family

ID=27277871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890118329 Expired - Lifetime EP0365879B1 (en) 1988-10-03 1989-10-03 Electric contact with base metal

Country Status (2)

Country Link
EP (1) EP0365879B1 (en)
DE (1) DE68925337T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59508504D1 (en) * 1994-04-19 2000-08-03 Marquardt Gmbh Electrical switch and manufacturing method for such a switch
FR2933541B1 (en) * 2008-07-07 2016-03-25 Schneider Electric Ind Sas METHOD FOR RESISTOR ASSEMBLY OF A CONTACT MATERIAL ON A METAL SUPPORT, ELECTRICAL CONTACT PRODUCED BY SUCH A METHOD AND CONTACT POCKET USED

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755368A (en) * 1953-11-27 1956-07-17 Gen Motors Corp Welding method
FR1448780A (en) * 1964-11-27 1966-03-18 Bernier & Cie Ets Method of placing contacts and contacts thus obtained
US3337947A (en) * 1964-06-29 1967-08-29 Aluminum Co Of America Method of joining electrical contacts to aluminum parts
US4099043A (en) * 1976-12-23 1978-07-04 Rozmus John J Progressive die welding of electrical contacts
US4523711A (en) * 1980-09-18 1985-06-18 Fuji Electric Co., Ltd. Method for bonding silver-based contact

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755368A (en) * 1953-11-27 1956-07-17 Gen Motors Corp Welding method
US3337947A (en) * 1964-06-29 1967-08-29 Aluminum Co Of America Method of joining electrical contacts to aluminum parts
FR1448780A (en) * 1964-11-27 1966-03-18 Bernier & Cie Ets Method of placing contacts and contacts thus obtained
US4099043A (en) * 1976-12-23 1978-07-04 Rozmus John J Progressive die welding of electrical contacts
US4523711A (en) * 1980-09-18 1985-06-18 Fuji Electric Co., Ltd. Method for bonding silver-based contact

Also Published As

Publication number Publication date
EP0365879A2 (en) 1990-05-02
EP0365879B1 (en) 1996-01-03
DE68925337D1 (en) 1996-02-15
DE68925337T2 (en) 1996-05-23

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