Patent ID: 6856054

Claim:
A motor comprising: an armature including: a stator core having a plurality of teeth and a plurality of salient poles disposed at respective tips of said plurality of teeth; and a plurality of coils wound around said plurality of teeth, respectively; a magnet rotor facing said plurality of salient poles; a sensor for detecting a magnetic pole position of said magnet rotor; a driver for controlling respective currents flowing through said plurality of coils according to a signal output by said sensor; and a substrate including: a central substrate portion disposed at a center of said stator core, said driver being mounted on said central substrate portion; and an arm substrate portion extending from said central substrate portion to said salient pole, said arm substrate portion being accommodated between two of said plurality of coils, said sensor being mounted on said arm substrate portion wherein said stator core has a surface perpendicular to an axis of rotation of said magnet rotor, said substrate being mounted on said surface of said stator core.