Patent ID: 6566772
Filing Date: 2003-05-20
Classification: H02K

Abstract:
An axial directional gap type eccentric rotor having a stop position maintaining unit, the rotor being exposed to magnetic flux generated by a disk-shaped magnet, said rotor comprising:a commutator comprising a shaft support at a center thereof and an air-core armature coil disposed to be eccentric on one side thereof; an arc-shaped protruding portion protruding from an outer circumference of the commutator, said arc-shaped protruding portion being disposed adjacent to said armature coil and being further away from said shaft support than said armature coil so that part of an outer circumference portion of said magnet having a main magnetic flux in an axial direction and part of the arc-shaped protruding portion are disposed to face each other through a gap having leakage magnetic flux; and an arc-shaped body comprised of magnetic material and disposed in part of said arc-shaped protruding portion.