DRIVE MOTOR, DRIVE SYSTEM HAVING SAID DRIVE MOTOR, AND VEHICLE

Disclosed by the present application are a drive motor, a drive system, and a vehicle. The drive motor comprises a motor casing body and a stator iron core mounted within the motor casing body, the motor casing body has a fluid inlet and a fluid outlet, and a trimmed edge extending along the axial direction of the stator iron core is arranged on an outer circumferential wall of the stator iron core, wherein a coolant channel is formed by space between the trimmed edge and an inner peripheral wall of the motor casing body, the fluid inlet and the fluid outlet are in communication with the coolant channel, and the depth of the trimmed edge satisfies relational formula b=k2LhRout−Rin, wherein b is the depth of the trimmed edge, Rout is the outer diameter of the stator iron core, Rin is the inner diameter of the stator iron core, L is a yoke thickness of the stator iron core, h is the stack thickness of the stator iron core, and k2 is a coefficient and is 0.05 to 0.1. The drive motor of the embodiment of the present application has high cooling efficiency and a good heat dissipation effect.