METHOD OF MANUFACTURING ELECTRICAL WIRE CONNECTING STRUCTURE AND ELECTRICAL WIRE CONNECTING STRUCTURE

摘要

In an electrical wire connecting structure and a method of manufacturing the electrical wire connecting structure, a terminal having a tube-shaped portion of 2.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 0.72 to 1.37 mm2, the electrical wire 13 is inserted into an electrical wire insertion port of the tube-shaped portion of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other. Furthermore, a terminal having a tube-shaped portion of 3.0 mm in inner diameter is prepared for an electrical wire having a conductor cross-sectional area of 1.22 to 2.65 mm2, the electrical wire is inserted into the electrical wire insertion port of the tube-shaped portion 25 of the electrical wire, and the tube-shaped portion and the core wire portion of the electrical wire are compressed to be crimp-connected to each other.

主权项

1. A method of manufacturing an electrical wire connecting structure in which a terminal having a tube-shaped portion and a conductor portion of a covered electrical wire are crimped at the tube-shaped portion, comprising:
welding end faces of a terminal forming piece to each other to form the tube-shaped portion and closing an end portion side opposite to an electrical wire insertion port of the tube-shaped portion, thereby preparing the terminal having the tube-shaped portion formed as a closed cylindrical body that is closed from the end portion at the opposite side to the electrical wire insertion portion except for the electrical wire insertion portion and has an inner diameter of 1.5 to 2.0 mm; inserting, into the electrical wire insertion port of the tube-shaped portion, the covered electrical wire in which the area of the conductor portion in cross-section vertical to a longitudinal direction of the covered electrical wire ranges from 0.72 to 1.37 mm2; and compressing and crimping a region corresponding to the conductor portion of the covered electrical wire and an insulating cover portion at the tube-shaped portion inclusive of at least a part of the welded portion.