Abstract: A rotor includes a rotor core in which magnet mounting holes, which are provided in layers along a radial direction and are arranged symmetrically in a circumferential direction about a d-axis, are formed, and magnets disposed in the magnet mounting holes, wherein the rotor core includes a first bridge portion provided between first magnet mounting holes adjacent to each other across the d-axis, a second bridge portion provided between second magnet mounting holes located further inward than the first magnet mounting holes in the radial direction and adjacent to each other across the d-axis, and third and fourth bridge portions provided between an outer peripheral surface of the rotor core and the first and second magnet mounting holes, respectively, and when smallest widths of the first to fourth bridge portion are L1, L2, L3, and L4, respectively, a relationship of L3<L1<L4<L2 is satisfied.

Abstract: A rotor includes a rotor core in which first and second magnet mounting holes, which are located outward and inward in a radial direction, respectively, are provided symmetrically in a circumferential direction about a d-axis, and a magnet provided in each of the first and second magnet mounting holes. The first and second magnet mounting holes satisfy a positional relationship defined by 1.0 < L1/L2 ? 1.7, where L1 represents a largest distance between a first magnet, which is disposed closest to the d-axis in the second magnet mounting hole, and a second magnet, which is mounted in the first magnet mounting hole, along a magnetization easy direction, and L2 represents a shortest distance between the first and second magnet mounting holes in a region located closer to the q-axis than a d-axis-side end of a third magnet disposed closest to the q-axis in the second magnet mounting hole.