Patent ID: 7075205
Filing Date: 2006-07-11
Classification: H02K

Abstract:
1. A motor comprising: a rotor structure comprising a rotation axis and a magnet encircling said rotation axis, wherein said magnet comprises two parts separated by a plane perpendicular to said rotation axis, each part comprises 2N corresponding magnetic areas, each said magnetic area has a polarity opposite to that of an adjacent one and said magnetic areas which are vertically corresponding to each other have opposite polarities; a stator structure comprising a sleeve, a first ring positioned on one opening of said sleeve, and a second ring positioned on the other opening of said sleeve, wherein N pieces of first salients and N pieces of second salients are spacedly and coplanarly extended from said first ring and said second ring respectively, and the position of each piece of said first salients corresponds to that of each piece of said second salients; and a coil wound around said sleeve; wherein when said stator structure is energized through electrifying said coil, each piece of said first salient is induced to have a polarity opposite to each corresponding piece of said second salient, so that said rotor structure rotates around said rotation axis, and N is an integer greater than 1.