High-heat-dissipation and high-strength motor shell

The motor casing comprises a casing body, the front end of the casing body is provided with an opening, the rear end of the casing body is provided with a flange end face, the center of the flange endface is provided with a bearing hole, and the inner side face of the flange end face is provided with honeycomb protrusions. A concentric bearing sleeve extending towards the opening direction of theshell in the axial direction is arranged at the position, matched with the bearing hole, of the inner side face of the flange end face, and the junction position between the bearing sleeve and the flange end face is a fillet; the honeycomb protrusions comprise a plurality of hexagonal rings distributed in an array mode, the inner ends of the honeycomb protrusions extend to the outer circumferential face of the bearing sleeve, and the outer ends of the honeycomb protrusions extend to the inner wall of the shell. According to the high-heat-dissipation and high-strength motor shell, the heat dissipation performance is gr