Armature winding structure and motor

The utility model discloses an armature winding structure, and belongs to the field of motors. Comprising an armature iron core and a three-phase winding. Wherein the armature iron core is of a circular ring structure; the three-phase winding comprises three coil groups which are tightly attached along the circumferential direction of the inner wall of the armature iron core to form a cylindrical winding, and the cylindrical winding enables the three-phase winding to be tightly attached to the inner wall of the armature iron core through a shaping process; the coil assembly is composed of two single coils which are distributed in a mirror image mode relative to the symmetry axis of the armature iron core. The two single coils are connected in series, and the winding span of the single coils at the two ends of the armature iron core is smaller than 180 degrees. According to the utility model, the winding mode of the three-phase coil group is designed, so that the same counter electromotive force as 180-degree