Crimp terminal, connection structural body, and method of manufacturing connection structural body

摘要

A barrel portion which allows the pressure-bonding connection of an aluminum core wire exposed on a distal end of an insulated wire covered with an insulating cover is formed into a cylindrical shape by bending barrel portion corresponding portions of a terminal base material in a terminal developed state about a terminal axis. In abutting end portions where the barrel portion corresponding portions abut each other, a welded part which welds the end portions is formed along a long length direction of the insulated wire. The welded part is formed on an upper surface concave portion and a projecting portion where an amount of plastic deformation of a conductor pressure-bonding section generated along with the pressure-bonding of the conductor pressure-bonding section becomes larger compared to other portions in a circumferential direction of the conductor pressure-bonding section.

主权项

1. A crimp terminal provided with a pressure-bonding section which allows a pressure-bonding connection of at least a conductor tip of an insulated wire formed by covering a conductor with an insulating cover and having the conductor tip where the conductor is exposed by peeling off the insulating cover at least on a distal end side, wherein
the pressure-bonding section is configured such that portions of a terminal base material in a terminal developed shape corresponding to the pressure-bonding section are formed into a cylindrical shape by bending the portions about a terminal axis, abutting end portions are formed by abutting the portions of the terminal base material corresponding to the pressure-bonding section, and a welded part where the abutting end portions are welded to each other is formed at least from a cover pressure-bonding section which pressure-bonds the insulating cover to a conductor pressure-bonding section which pressure-bonds the conductor along a long length direction of the pressure-bonding section, a portion of the pressure-bonding section where an amount of plastic deformation of the pressure-bonding section generated along with pressure-bonding of the pressure-bonding section applied to the conductor tip of the pressure-bonding section is relatively large compared to an amount of plastic deformation of a peripheral portion of the pressure-bonding section in a circumferential direction is set as a plastic deformation portion, and the welded part is formed in the plastic deformation portion.