Permanent magnet motor rotor structure for electric automobile

The utility model discloses a permanent magnet motor rotor structure for an electric automobile, and relates to the technical field of motor rotors, a plurality of silicon steel sheets are laminated to form a rotor core and permanent magnets, the periphery of the rotor core is provided with a plurality of combined magnetic steel grooves, and the permanent magnets are inserted and connected in the combined magnetic steel grooves. A rotor shaft hole is formed in the center of the rotor core, and a plurality of ventilation holes are formed between the rotor shaft hole and the combined magnetic steel grooves; the combined magnetic steel groove comprises a W-shaped magnetic steel groove and two linear magnetic steel grooves. The motor is ingenious in conception, the heat dissipation capability of the motor is improved by using the plurality of ventilation holes, and the permanent magnets are prevented from being demagnetized due to over-high temperature rise of the motor; by reasonably arranging the shapes and rel