Aluminum electric wire crimping terminal, crimping device and crimping method

Patent metadata

Field	Value
Publication number	US-11095049-B2
Application number	US-201916519842-A
Country	US
Kind code	B2
Filing date	Jul 23, 2019
Priority date	Jul 25, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

An aluminum electric wire crimping terminal formed by connecting an aluminum electric wire and a crimping terminal includes a low compression concave portion and a high compression concave portion in a crimping portion. The high compression concave portion compresses a plurality of core wires with a stronger compression force than a compression force of the low compression concave portion.

First claim

What is claimed is:

1. An aluminum electric wire crimping terminal comprising:
an aluminum electric wire extending in a forward direction; and
a crimping terminal that is connected with the aluminum electric wire, wherein
the aluminum electric wire includes a plurality of core wires, and a sheath that covers the plurality of core wires,
the crimping terminal includes a contact portion and a crimping portion of a cylindrical shape,
the crimping portion includes an insertion hole, and
in a state where the plurality of core wires is inserted in the insertion hole, the crimping portion is compressed and the plurality of core wires and the crimping portion directly contact each other and are directly electrically connected to each other,
a low compression concave portion that has a concave shape recessed on the side of the plurality of a core wires from the crimping portion and that compresses and electrically contacts the plurality of core wires and a high compression concave portion that has a concave shape recessed on the side of the plurality of core wires from the crimping portion and that compresses and electrically contacts the plurality of core wires are molded in the crimping portion and offset from each other in the forward direction, and
the high compression concave portion further protrudes in a lower direction more than a distal end surface of the low compression concave portion, and compresses the plurality of core wires with a stronger compression force than a compression force of the low compression concave portion.

2. The aluminum electric wire crimping terminal according to claim 1 , wherein
the high compression concave portion is located and molded on a side in the forward direction of the low compression concave portion.

Assignees

• Yazaki Corp

Inventors

• Kato Sanae
• Warashina Shinya

Classifications

• H01R43/048

  Crimping apparatus or processes (H01R43/042 takes precedence) · CPC title

• H01R43/058

  Crimping mandrels · CPC title

• H01R43/0484

  for eyelet contact members · CPC title

• H01R4/184

  comprising a U-shaped wire-receiving portion · CPC title

• H01R4/20

  using a crimping sleeve {(H01R4/01 takes precedence)} · CPC title