Motor

The invention relates to an electric machine. The motor comprises a motor shell and a stator core. A liquid inlet is formed in the motor shell. The stator core is arranged inside the motor shell, the stator core comprises an annular stator magnet yoke and a plurality of stator teeth which are distributed at intervals along the circumferential direction of the stator magnet yoke, the plurality of stator teeth are formed on one side, facing the rotor, of the stator magnet yoke, and the stator core further comprises a first end face located at one axial end and a second end face located at the other axial end. A first tooth root cooling channel extending in the axial direction of the stator core is arranged at the tooth root of each stator tooth and comprises a first inlet and a first outlet, the first inlet is formed between the first end face and the second end face, the first outlet is formed in the second end face, and the liquid inlet is closer to the first outlet than the first inlet in the axial direction