Self cooling PMSM of special power assisted steering of new energy automobile

The utility model discloses a self cooling PMSM of special power assisted steering of new energy automobile, including aluminum alloy casing, front end housing, rear end cap, pivot, the both ends of controlling of aluminum alloy casing are located respectively to front end housing and rear end cap, the left side and the right side of pivot are connected respectively on front end housing and rear end cap through fore bearing and rear bearing respectively, the pivot is rotatable for the aluminum alloy casing, the inner wall of aluminum alloy casing is equipped with the stator assembly of ring type, the middle part of pivot is connected with the rotor assembly through the rotor core rand, and the rotor assembly is located within the stator assembly of ring type, the utility model discloses simple structure, the design on heat dissipation opening and magnet steel bridge limit is played and is reduced the magnetic leakage, and the air gap of increase sudden change simultaneously forms the effect of 12 little fans, plays the effect of forced -air cooling, and the motor temperature rise is hanged down, so the no fan of motor itself, and the mechanical loss is little, and efficiency is higher, annexes such as no fan, fan housing, no outlet box, motor overall reliability is higher.