GB1473249A - Electrical switching contacts - Google Patents

Electrical switching contacts

Info

Publication number
GB1473249A
GB1473249A GB70675A GB70675A GB1473249A GB 1473249 A GB1473249 A GB 1473249A GB 70675 A GB70675 A GB 70675A GB 70675 A GB70675 A GB 70675A GB 1473249 A GB1473249 A GB 1473249A
Authority
GB
United Kingdom
Prior art keywords
nickel
copper
layers
alloy
jan
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.)
Expired
Application number
GB70675A
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.)
WC Heraus GmbH and Co KG
Siemens AG
Original Assignee
WC Heraus GmbH and Co KG
Siemens AG
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 WC Heraus GmbH and Co KG, Siemens AG filed Critical WC Heraus GmbH and Co KG
Publication of GB1473249A publication Critical patent/GB1473249A/en
Expired 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
    • H01H1/0231—Composite material having a noble metal as the basic material provided with a solder layer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)

Abstract

1473249 Switch contacts SIEMENS AG 8 Jan 1975 [23 Jan 1974] 706/75 Heading H1N An electrical contact to reduce erosion by material migration due to arcing comprises a carrier 1, of nickel or nickel iron alloy, for example, and a solid outer contact layer 3, preferably of a precious metal or precious metal alloy such as silver or palladium with copper, and is characterized by the provision of an intermediate layer 2 serving to establish electrical connection between the layers 1 and 3 and consisting of a copper-nickel alloy with a nickel content of between 42 and 46%, preferably 44%, by weight. In a second embodiment (Fig. 1b, not shown) a layer (4) of good electrically conducting material, such as copper or silver, is provided between the layers 3 and 2. A third embodiment (Fig. 1c, not shown) comprises a stacked structure of layers 2 and 3 on the carrier 1 which advantageously controls erosion when co-operating contacts are mutually tilted (Fig. 2b, not shown).
GB70675A 1974-01-23 1975-01-08 Electrical switching contacts Expired GB1473249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE742403048A DE2403048C3 (en) 1974-01-23 1974-01-23 Low-voltage electrical contacts

Publications (1)

Publication Number Publication Date
GB1473249A true GB1473249A (en) 1977-05-11

Family

ID=5905442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB70675A Expired GB1473249A (en) 1974-01-23 1975-01-08 Electrical switching contacts

Country Status (14)

Country Link
JP (1) JPS50103674A (en)
AT (1) AT335557B (en)
BE (1) BE824696A (en)
BR (1) BR7500421A (en)
CH (1) CH579817A5 (en)
DE (1) DE2403048C3 (en)
DK (1) DK18875A (en)
FR (1) FR2258696B1 (en)
GB (1) GB1473249A (en)
IT (1) IT1028337B (en)
LU (1) LU71693A1 (en)
NL (1) NL158313B (en)
SE (1) SE393216B (en)
ZA (1) ZA75492B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175460A1 (en) * 2007-03-27 2010-04-14 The Furukawa Electric Co., Ltd. Silver-coated material for movable contact component and method for manufacturing such silver-coated material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5671221A (en) * 1979-11-13 1981-06-13 Tanaka Precious Metal Ind Composite electric contact material
DE3027304C2 (en) * 1980-07-18 1982-09-30 Sds-Elektro Gmbh, 8024 Deisenhofen Electrical multilayer contact
US4999464A (en) * 1990-03-23 1991-03-12 General Electric Company Molded case circuit breaker contact and contact arm arrangement
JP3693300B2 (en) * 1993-09-03 2005-09-07 日本特殊陶業株式会社 External connection terminal of semiconductor package and manufacturing method thereof
CN111455438B (en) * 2020-03-11 2022-07-15 贵州振华群英电器有限公司（国营第八九一厂） Local electroplating fixture for relay base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175460A1 (en) * 2007-03-27 2010-04-14 The Furukawa Electric Co., Ltd. Silver-coated material for movable contact component and method for manufacturing such silver-coated material
EP2175460A4 (en) * 2007-03-27 2011-10-12 Furukawa Electric Co Ltd Silver-coated material for movable contact component and method for manufacturing such silver-coated material

Also Published As

Publication number Publication date
DE2403048B2 (en) 1977-03-31
DK18875A (en) 1975-09-22
NL158313B (en) 1978-10-16
BR7500421A (en) 1975-11-04
LU71693A1 (en) 1975-06-24
AT335557B (en) 1977-03-25
FR2258696B1 (en) 1977-07-01
BE824696A (en) 1975-07-23
IT1028337B (en) 1979-01-30
SE7500724L (en) 1975-07-24
AU7728475A (en) 1976-07-15
FR2258696A1 (en) 1975-08-18
CH579817A5 (en) 1976-09-15
JPS50103674A (en) 1975-08-15
DE2403048A1 (en) 1975-07-31
SE393216B (en) 1977-05-02
ATA18475A (en) 1976-07-15
ZA75492B (en) 1976-02-25
DE2403048C3 (en) 1979-03-08
NL7500534A (en) 1975-07-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee