Motor assembly

The utility model relates to a motor assembly, which comprises a motor shell, a stator assembly, a motor shaft and a rotor assembly, the stator assembly comprises a stator iron core and a winding wound on the stator iron core, and the stator iron core comprises a sleeve connected to the motor shell and stator teeth radially protruding outwards from the periphery of the sleeve; the stator tooth comprises an iron core body and an iron core shell wrapping the iron core body, the iron core shell is provided with a first edge, a second edge and a curvature arc-shaped part connected between the first edge and the second edge, and the winding is attached to the curvature arc-shaped part. According to the utility model, the curvature arc-shaped part can effectively reduce the problem of wire damage caused by stress concentration at the corners of the stator teeth, and at the same time, the winding and the stator teeth are more attached to each other, so as to improve the consistency in height; in addition, the curvat