Crimping terminal
AssigneeYazaki Corporation
InventorsJin Watanabe, Yoshihito Aoki
Life of this patent
Estimating the term…
Abstract
A crimping terminal joined with an aluminum electric wire, in which when the crimping terminal is crimped to the wire, a conduct-purpose crimping portion and a wire-hold crimping portion are formed at a crimping portion of a wire barrel of the crimping terminal. The crimping portion of the wire barrel is formed so as a curvature thereof is projected upwardly in a direction of moving a crimping die and so as a crimp height increases and a compression ratio decreases towards an insulation barrel of the crimping terminal. The curvature is shaped to have a constant degree of curvature, and is shaped to form a quadratic curve as a result of strictly adjusting a crimping force.
Claims4
A crimping terminal joined with an aluminum electric wire including a conductive core portion formed by a plurality of twisted core wires and a covered portion covering the conductive core portion, comprising:
- an insulation barrel crimped with the covered portion;
- a wire barrel crimped with the conductive core portion exposed by removing a predetermined length of the covered portion from an end of the aluminum electric wire;
- and
- a crimping portion formed at the wire barrel when the wire barrel is crimped to the conductive core portion of the aluminum electric wire, so as to form a conduct-purpose crimping portion and a wire-hold crimping portion at the crimping portion,
- wherein the entire crimping portion or each of the conduct-purpose crimping portion and the wire-hold crimping portion is formed into a curved shape projecting upwardly or downwardly in a direction of moving a crimping die when viewing in a direction perpendicular both to the direction of moving the crimping die and a direction along a lengthwise of the aluminum electric wire so as to decrease a compression ratio and increase a crimp height toward the insulation barrel.
Dependencies are inferred from the claim text.