Solder, aluminum wire body and motor using the same

Patent metadata

Field	Value
Publication number	US-9789568-B2
Application number	US-201414177988-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Mar 25, 2013
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

An aluminum wire body, in which an aluminum or aluminum alloy electric wire and a metal to be joined are joined by solder, wherein the solder includes an oxide glass including vanadium and a conducting particle. Preferably, the conducting particle contained in the solder is 90% by volume or less and the oxide glass is 20% by volume to 90% by volume. Further preferably, the oxide glass includes 40% by mass or more of Ag 2 O in terms of oxides and the glass transition point is 180° C. or less.

First claim

What is claimed is:

1. Solder joining an aluminum or aluminum alloy electric wire and a metal to be joined, wherein
the solder comprises an oxide glass including vanadium and a conducting particle, and the oxide glass in a total amount of the oxide glass and the conducting particle is 40% to 90% by volume.

2. The aluminum wire body according to claim 1 , wherein
the conducting particle contained in the solder is 90% by volume or less.

3. The solder according to claim 1 , wherein
the oxide glass comprises 40% by mass or more of Ag 2 O in terms of oxides and the glass transition point is 180° C. or less.

4. The solder according to claim 1 , wherein
the oxide glass further comprises one or more of Te, P, Fe, K, W, Ba and Sb.

5. The solder according to claim 1 , wherein
the conducting particle is a conducting particle selected from an aluminum or aluminum alloy particle, a copper or copper alloy particle, a silver or silver alloy particle, a tin or tin alloy particle, and a zinc or zinc alloy particle.

6. An aluminum wire body, which is equipped with an aluminum or aluminum alloy electric wire, a metal to be joined, and a connected portion in which a body to be joined and the metal to be joined are joined by the solder according to claim 1 .

7. The aluminum wire body according to claim 6 , wherein
the solder is supplied to the connected portion in any form of powder, paste, wire, and sheet, and is burned to join the electric wire and the metal to be joined.

8. The aluminum wire body according to claim 7 , wherein
the solder is supplied in the form of paste and comprises a conducting particle selected from an aluminum or aluminum alloy particle, a copper or copper alloy particle, a silver or silver alloy particle, a tin or tin alloy particle, and a zinc or zinc alloy particle, and the oxide glass comprises vanadium and an organic solvent.

9. An aluminum wire body comprising:
an aluminum or aluminum alloy electric wire,
a metal to be joined, and
a connected portion in which the electric wire and the metal to be joined are joined by solder containing an oxide glass comprising vanadium and a conducting particle,
wherein the solder, which is burned in the connected portion, comprises a vanadium alloy phase.

10. The aluminum wire body according to claim 6 , wherein
the solder, which is burned in the connected portion, comprises a vanadium oxide phase.

11. The aluminum wire body according to claim 9 , wherein
the electric wire and the metal to be joined are aluminum conductors, and are mechanically connected in the connected portion, and the solder, in the form of powder or paste, is then applied thereto and burned to join the aluminum conductors.

12. The aluminum wire body according to claim 6 , wherein
the solder further comprises at least any one of silver, tellurium and phosphorus.

Assignees

• Hitachi Ltd

Inventors

• Aoyagi Takuya
• Kodama Motomune
• Naito Takashi
• Fujieda Tadashi
• Sawai Yuichi
• Miyagi Masanori
• Akahoshi Haruo
• Iwasaki Norihisa

Classifications

• B23K35/025 Primary

  Pastes, creams or slurries · CPC title

• B23K35/302

  Cu as the principal constituent · CPC title

• B23K35/0233

  Sheets or foils (B23K35/0244 takes precedence) · CPC title

• H01R4/023

  between cables or wires and terminals · CPC title

• H01R4/625

  Soldered or welded connections · CPC title