Stator Coil, Axial Gap-Type Rotating Electric Machine, and Method for Manufacturing Same

摘要

Stator coils each consist of a plurality of rectangular conductor coil pieces, the adjacent connection ends of which are connected to each other on the outer diameter side of a stator. The coil pieces each have: a folded portion folded in a rotation axis direction on the inner diameter side of the stator; inner diameter-side open leg portions opened from both sides of the folded portion toward the circumferential directions of the rotation axis; linear portions each bent from each of the inner diameter-side open leg portions and disposed so as to pass through the stator from the inner diameter side to the outer diameter side; and an outer diameter-side open leg portions opened from the linear portions toward the circumferential directions of the rotation axis and extending to the connection ends. The inner diameter-side open leg portions extending to the folded portion have a correction portion for correcting the position of the rectangular conductor and are formed so as to align the connection end extending to the correction portion with the connection end of the adjacent coil piece.

主权项

1. A stator coil disposed in a stator of an axial gap-type rotating electric machine rotating a rotor, comprising:
a plurality of coil pieces as rectangular conductors disposed in the circumferential direction of a rotation shaft of the rotor and formed by connecting adjacent connection ends to each other at the outer diameter side of the stator, wherein each coil piece includes a folded portion folded in the rotation axis direction at the inner diameter side of the stator, an inner diameter side open leg portion opened in the circumferential direction of the rotation shaft from both sides of the folded portion, a linear portion bent from each inner diameter side open leg portion so as to pass through the stator from the inner diameter side toward the outer diameter side, and an outer diameter side open leg portion opened in the circumferential direction of the rotation shaft from the linear portion and extending to the connection end, and wherein an inner diameter side open leg portion connected to the folded portion includes a correction portion correcting the position of the rectangular conductor and the connection end connected to the correction portion is evenly disposed with respect to the connection end of the adjacent coil piece.