Title:
WIRE CONNECTION STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/235637
Kind Code:
A1
Abstract:
The present invention provides a wire connection structure in which an increase in electrical resistance or decrease in bond strength (drawing strength) due to crevice corrosion at an ultrasonic weld junction formed by a copper-based conductor exposed portion and an aluminum-based conductor exposed portion is effectively suppressed. This wire connection structure (1) is provided with: at least one copper-based conductor coated wire (10) having a copper-based conductor coated portion (11) and an exposed portion (12); and at least one aluminum-based conductor coated wire (20) having an aluminum-based conductor coated portion (21) and an exposed portion (22), wherein an ultrasonic weld junction (30) is formed on a conductor laminated portion in which the copper-based conductor exposed portion (12) and the aluminum-based conductor exposed portion (22) are overlapped with each other, and in a cross section of the weld interface (33) of the ultrasonic weld junction (30), the total contact length L, which is the total length of a portion in which the copper-based conductor exposed portion (12) and the aluminum-based conductor exposed portion (22) are in contact, and the total contour length x of a space S formed in a portion in which the copper-based conductor exposed portion (12) and the aluminum-based conductor exposed portion (22) are spaced apart from each other satisfy (x/L)×100≤10%.
Inventors:
YOSHIDA SHO (JP)
TACHIBANA AKIRA (JP)
MITOSE KENGO (JP)
TACHIBANA AKIRA (JP)
MITOSE KENGO (JP)
Application Number:
PCT/JP2018/022056
Publication Date:
December 27, 2018
Filing Date:
June 08, 2018
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA AUTOMOTIVE SYSTEMS INC (JP)
FURUKAWA AUTOMOTIVE SYSTEMS INC (JP)
International Classes:
H01R4/62; H01B7/00; H01R4/02
Foreign References:
| JP2013004346A | 2013-01-07 | |||
| JP2011014437A | 2011-01-20 | |||
| JP2010113946A | 2010-05-20 | |||
| JP2014097526A | 2014-05-29 | |||
| US4224499A | 1980-09-23 | |||
| JP2010044887A | 2010-02-25 |
Other References:
See also references of EP 3644443A4
Attorney, Agent or Firm:
SUMIYOSHI Shuichi (JP)
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