Permanent magnet synchronous motor for new energy automobile

The utility model relates to a permanent magnet synchronous motor for new energy automobile. The permanent magnet synchronous motor is composed of a case, a motor stator, a motor rotor, a motor rotating shaft, a rear end cover, a front end cover, a water inlet and a water outlet. The motor stator is fixed at the inner wall of the case; and the motor rotor is fixed at the motor rotating shaft and rotates in the motor stator. A hollow inner cavity is arranged at the case; and the water inlet and the water outlet are communicated with the hollow inner cavity. The motor rotating shaft is connected to the rear end cover and the front end cover by a double row angular contact bearing; and the rear end cover and the front end cover are fastened at the case by bolts and have positioning installing holes. And the case is manufactured by using the high-density die-casting aluminium alloy. According to the scheme, the cooling system and the bearing of the traditional permanent magnet synchronous motor are improved; and