The application discloses a rotor, a permanent
magnet synchronous reluctance motor and a vehicle, and relates to the technical field of
rotor design. The rotor comprises a rotor core, and the rotor core is uniformly provided with a plurality of
magnetic barrier groups in the circumferential direction; each
magnetic barrier group comprises a third group of magnetic steel grooves, a second group of magnetic steel grooves and a first group of magnetic steel grooves which are sequentially and spacedly arranged along the radial direction outward. The first group of magnetic steel grooves is composed of two first magnetic steel groove rows which are symmetric about the d-axis and arranged in a V shape; each first magnetic steel groove is internally provided with a rectangular magnetic steel. The second group of magnetic steel grooves is composed of two second magnetic steel groove rows which are symmetric about the d-axis and arranged in a V shape; each second magnetic steel groove is internally provided with a rectangular magnetic steel. The third group of magnetic steel grooves is composed of two third magnetic steel groove rows which are symmetric about the d-axis and arranged in a U shape; the third magnetic steel groove is a V-shaped groove which is formed by the communication of a magnetic steel groove I section and a magnetic steel groove II section; the magnetic steel groove I section and the magnetic steel groove II section are each internally provided with a rectangular magnetic steel. The rotor of the application can increase the magnetic aggregation capacity, optimize the air gap
magnetic flux density waveform, reduce the
magnetic flux leakage and improve the magnetic
saturation phenomenon.