Motor shell provided with cooling water jacket

The utility model discloses a motor shell provided with a cooling water jacket, which comprises a motor shell. An inner sleeve is sheathed at the inner wall of the motor shell; a water cavity is arranged between the outer wall of the inner sleeve and the inner wall of the shell; a guiding strip-shaped rib is arranged on the inner wall of the shell or the outer wall of the inner sleeve; two ends of the inner sleeve are sealed relative to the inner wall of the shell; and a water inlet opening and a water outlet opening are arranged in the motor shell. For the motor shell, the inner sleeve is sheathed at the inner wall of the shell, the water cavity is arranged between the outer wall of the inner sleeve and the inner wall of the shell, and the guiding strip-shaped rib is arranged on the inner wall of the shell or the outer wall of the inner sleeve; the motor shell is simple in structure; and due to the arrangement of the guiding strip-shaped rib, the flow direction and the flow speed of cooling liquid can be optimized, and the cooling effect and the processing manufacturability of the water jacket can be improved.