Patent ID: 10916980

Abstract:
A rotor includes a rotor core having a cylindrical shape with a central axis as a center thereof and magnets arranged in a circumferential direction. The rotor core includes an inner side core portion positioned farther inward than the magnet in a radial direction, a first outer side core portion positioned farther outward than the magnet in the radial direction and disposed on a first side in an axial direction, and a second outer side core portion positioned farther outward than the magnet in the radial direction and disposed on a second other side in the axial direction. A distance between the central axis and an outer side surface of the first outer side core portion changes in the circumferential direction, a distance between the central axis and an outer side surface of the second outer side core portion changes in the circumferential direction. In a plan view, a first top portion positioned at an outermost position of the first outer side core portion in the radial direction and a second top portion positioned at an outermost position of the second outer side core portion in the radial direction are located at positions different from each other in the circumferential direction.