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US 11,114,825 B2Granted
Joining method of electric wires
AssigneeYazaki Corporation
InventorsShigeru Tanaka, Masayuki Kataoka
Life of this patent
Estimating the term…
Abstract
In a joining method of an electric wire, an end of a first conductor is held by a holding surface of a first jig electrode from an outer circumference side and an end of a second conductor is held by a holding surface of a second jig electrode from an outer circumference side to butt and join the ends of the first conductor and the second conductor in the axial direction while heating the ends. Then, a melted material is bulged outward from an outer circumferential surface of a joining portion to a bulge molding portion formed to surround a joining portion of the ends of the first conductor and the second conductor.
Claims21
A joining method of electric wires comprising:
- a holding step of arranging a conductive first conductor formed by a plurality of element wires and a conductive second conductor formed in a bar shape to be opposed to each other in an axial direction, holding an end of the first conductor by a first holding surface of a first jig electrode from an outer circumference side, and holding an end of the second conductor by a second holding surface of a second jig electrode from an outer circumference side;
- an approaching step of relatively moving the first jig electrode and the second jig electrode to be opposed to each other in the axial direction and moving the end of the first conductor and the end of the second conductor to be closer to each other;
- and
- a joining and molding step of abutting and joining the end of the first conductor and the end of the second conductor while heating the ends by energizing the first jig electrode and the second jig electrode and bulging a melted material outward from an outer circumferential surface of a joining portion to a bulge molding portion formed to surround the joining portion of the end of the first conductor and the end of the second conductor, wherein
- the bulge molding portion has molding surfaces on the first jig electrode and the second jig electrode to mold the melted material and is formed so that widths of opposing portions of the molding surfaces opposed to each other so as to sandwich the joining portion in an orthogonal direction orthogonal to the axial direction are larger than a larger one of the widths of opposing portions of the first holding surface opposed to each other so as to sandwich the first conductor in the orthogonal direction and the widths of opposing portions of the second holding surface opposed to each other so as to sandwich the second conductor in the orthogonal direction.
2 more elements
A joining method of electric wires comprising:
- a holding step of arranging a conductive first conductor formed by a plurality of element wires and a conductive second conductor formed in a bar shape to be opposed to each other in an axial direction, holding an end of the first conductor by a first holding surface of a first jig electrode from an outer circumference side, and holding an end of the second conductor by a second holding surface of a second jig electrode from an outer circumference side;
- an approaching step of relatively moving the first jig electrode and the second jig electrode to be opposed to each other in the axial direction and moving the end of the first conductor and the end of the second conductor to be closer to each other;
- and
- a joining and molding step of abutting and joining the end of the first conductor and the end of the second conductor while heating the ends by energizing the first jig electrode and the second jig electrode and bulging a melted material outward from an outer circumferential surface of a joining portion to a bulge molding portion formed to surround the joining portion of the end of the first conductor and the end of the second conductor, wherein
- in the joining and molding step, until the end of the first jig electrode in the axial direction and the end of the second jig electrode in the axial direction have contact with each other, the end of the first conductor and the end of the second conductor are pressurized to be butted to each other in the axial direction, and
- the bulge molding portion has molding surfaces on the first jig electrode and the second jig electrode to mold the melted material and is formed so that widths of opposing portions of the molding surfaces opposed to each other so as to sandwich the joining portion in an orthogonal direction orthogonal to the axial direction are larger than a larger one of the widths of opposing portions of the first holding surface opposed to each other so as to sandwich the first conductor in the orthogonal direction and the widths of opposing portions of the second holding surface opposed to each other so as to sandwich the second conductor in the orthogonal direction.
3 more elements
Dependencies are inferred from the claim text.