Patent ID: 9431862
Filing Date: 2016-08-30
CPC Classification: H02K

Claim Text:
1. A motor comprising: an armature; a commutator that includes a plurality of segments; a shaft that is rotated around a central axis along with the armature and the commutator; a magnet that is disposed around the armature and in which an N pole and an S pole are alternatively arranged in a circumferential direction; a brush that is disposed around the commutator and makes sliding contact with the plurality of segments; and a winding structure that is disposed over the armature and the commutator; wherein the armature includes a plurality of coils, and an armature core that is fixed to the shaft; the armature core includes a plurality of teeth that are radially extended in a radial direction, and a plurality of slots that are disposed between the plurality of teeth and extended in an axial direction; the winding structure includes a coil winding wire that defines the coil, a leader line that is connected between the coil and the plurality of segments, a connecting wire that is connected between two coils, and an equalizer that is connected between two segments of the plurality of segments; the equalizer includes a going portion and a return portion which are wound across groups of the plurality of teeth through the plurality of slots, and connects a hook portion of two identical segments of the plurality of segments; and when an expansion value is an integer among values which are integer multiples of a value which is acquired by dividing a total number of the slots by a total number of pole pairs defined by the N pole and the S pole, and when one group of the plurality of teeth continuously arranged in the circumferential direction and includes a same number of the plurality of teeth as the expansion value is given as an element teeth group, the plurality of teeth forming a plurality of element teeth groups, the going portion and the return portion are wound across the element teeth groups through ones of the plurality of slots positioned at both sides of the element teeth groups; the element teeth group covered by the going portion is different from the element teeth group covered by the return potion; and the coil winding wire, the leader line, the connecting wire, and the equalizer are all portions of a single continuous conducting wire.