Patent attributes
In the present invention, single-phase bus rings have single-phase-side rounded regions that are disposed at intervals on a circle smaller than a neutral-point bus ring and are positioned so that its circumferential edges are displaced in the circumferential direction relative to neutral-point-side connecting regions of the neutral-point bus ring and are positioned in a second axial position that is farther from a stator than a first axial position on which the neutral-point bus ring is partially positioned, and a pair of single-phase-side projections that extend radially outward from the circumferential edges of adjacent single-phase-side rounded regions beyond portions of the neutral-point-side rounded regions positioned in the first axial position, and are connected to each other at distal ends.
