A rotor includes a plurality of cores stacked in an axial direction, a permanent magnet, and a nonmagnetic resin. The plurality of cores include a magnet insertion hole, a first opening communicating with one end of the magnet insertion hole in a circumferential direction, and an indent part communicating with the first opening and indented in the circumferential direction. The permanent magnet is disposed in the magnet insertion hole. The nonmagnetic resin is provided in the first opening and the indent part.

A rotor includes a rotor core having an outer circumference extending in a circumferential direction about an axis and having magnet insertion holes, and permanent magnets disposed in the magnet insertion holes. The permanent magnet constitutes a magnet magnetic pole, and a part of the rotor core constitutes a virtual magnetic pole. The width of the virtual magnetic pole in the circumferential direction is narrower than the width of the permanent magnet in the circumferential direction. The rotor core has at least one slit at the virtual magnetic pole.

The stator includes a stator core, a support electric wire formed by one or more conductive wires, and a drive electric wire formed by one or more conductive wires. The stator core includes an annular shaped back yoke and a plurality of teeth on an inner periphery of the back yoke. The support electric wire is disposed so as to pass through a plurality of slots respectively formed between the teeth, and forms a winding portion that generates an electromagnetic force for supporting the rotor in a non-contact manner by being energized. The drive electric wire is disposed so as to pass through the plurality of slots, and forms a winding portion that generates an electromagnetic force for rotating the rotor by being energized. A cross-sectional area per conductive wire of the support electric wire differs from a cross-sectional area per conductive wire of the drive electric wire.

An outdoor unit includes a motor and a heat exchanger. The motor includes a rotor, a stator, and a heat dissipation member. The rotor is rotatable about an axis, and has a rotor core and a permanent magnet attached to the rotor core. The permanent magnet forms a magnet magnetic pole. A part of the rotor core forms a virtual magnetic pole. The stator surrounds the rotor from outside in a radial direction about the axis. The heat dissipation member is disposed on a side of the stator in a direction of the axis. The heat exchanger is disposed to face the heat dissipation member in the direction of the axis.

A motor has a rotor, a stator surrounding the rotor, a reinforcing member, and a mold resin part covering the stator and the reinforcing member. The tensile strength of the reinforcing member is higher than the tensile strength of the mold resin part.

A motor includes a rotor having a shaft, a rotor core, and a permanent magnet, and a stator surrounding the rotor. The permanent magnet forms a magnet magnetic pole, a part of the rotor core forms a virtual magnetic pole. The motor includes first and second bearings support the shaft, and further includes first and second bearing support portions. Of the first and second bearings, the first bearing is located on the load side. A distance D1 from the center axis to the inner circumferential surface of the first bearing support portion, a distance D2 from the center axis to the inner circumferential surface of the second bearing support portion, a distance d1 from the center axis to the outer circumferential surface of the first bearing, and a distance d2 from the center axis to the outer circumferential surface of the second bearing satisfy D1−d1<D2−d2.

An outdoor unit includes a motor. The motor includes a rotor having a rotor core and a permanent magnet fixed to the rotor core, the permanent magnet forming a magnet magnetic pole, a part of the rotor core forming a virtual magnetic pole, and a stator surrounding the rotor. The outdoor unit further includes a frame holding the motor, a support body supporting the frame, a unit housing in which the frame and the support body are housed, and a nonmagnetic body disposed between the support body and the unit housing.

A stator includes a stator core having a core back in an annular shape about an axis, and a nonmagnetic mold resin part surrounding the stator core from outside in a radial direction about the axis. The stator core has a core-back gap passing in the radial direction through at least a part of the core back in a circumferential direction about the axis. The mold resin part reaches an inner side of the core back in the radial direction from an outer side of the core back in the radial direction through the core-back gap.

A rotary electric machine includes: a rotary shaft member; first and second rotor including first and second rotor core, respectively, including first and second permanent magnets having first and second polarity, first and second magnet-based magnetic pole portions having the first and the second polarities and being formed by the first and the second permanent magnets, and first and second iron core portions having the second and the first polarities and being formed by iron pole portions of the first and the second rotor core, are alternately arranged in a circumferential direction of the first rotor core; a stator; and a field yoke. Further, the first magnet-based magnetic pole portion and the second iron pole portion face each other and the first iron pole portion and the second magnet-based magnetic pole portion face each other in the axial direction.

A motor includes a stator, a rotor of a consequent-pole type including a rotary shaft, a bearing as a rolling bearing that supports the rotary shaft, a bearing holding part that is fixed to the stator and holds an outer ring of the bearing, and a creep prevention part. The creep prevention part is arranged between the outer ring and the bearing holding part and increases friction resistance in a circumferential direction of the outer ring between the outer ring and the bearing holding part.