Rotor structure and motor with same

The utility model provides a rotor structure and a motor having the same, the rotor structure comprises a rotor body and a cooling system, the cooling system is arranged in the rotor body, the cooling system is provided with a first cooling water channel for liquid inlet, and the cooling system is provided with a second cooling water channel for liquid outlet. The cooling system is provided with a third cooling water channel for connecting the first cooling water channel with the second cooling water channel; wherein the third cooling water channel extends in the radial direction of the rotor body, and at least part of the third cooling water channel is of an arc-shaped structure. The cooling system is arranged in the rotor body, the cooling system is divided into the first cooling water channel, the second cooling water channel and the third cooling water channel, and a small part of the third cooling water channel is arranged to be of an arc-shaped structure, so that the circulation area of the cooling wate