Tangential formula PMSM's rotor

The utility model provides a tangential formula PMSM's rotor, including rotor core, the axle, an air groove, the 2nd air groove, permanent magnet groove, the permanent magnet, stator core and the 3rdair groove, rotor core fix on the outer wall of axle, an air groove and the 2nd air groove set up the outside paraxial end at the axle in turn. The utility model discloses the 2nd air groove or the 3rd air groove cell wall are the arch of cockscomb structure, are favorable to epoxy attached to the rotor the 2nd air groove or the 3rd air groove cell wall on, improve heat -sinking capability, it hasepoxy to annotate among the 2nd air groove or the 3rd air groove, is favorable to strengthening rotor mechanical intensity, increases the rotor radiating effect, an air groove and the 2nd air groove's setting is favorable to limiting the leakage magnetic flux of permanent magnet magnetic pole, improves the output and the torque of motor, has simplified the manufacturing process of tangential formula PMSM rotor in addition