Patent ID: 6384499
Filing Date: 2002-05-07
Classification: H02K,Y10S

Abstract:
An eccentric rotor comprising:an eccentric printed wiring commutator device having first and second surfaces, an expanded fan shape when viewed in a plane, a central hole for shaft installation, a plurality of segment patterns exposed toward a periphery of the first surface, at least one printed circuit armature coil at at least one of the first and second surfaces, and an eccentric wound armature coil installation guide, wherein an end connection of each coil is arranged at an outer circumference during rotation; a wound air-core coil incorporated in an air-core position determination guide and having an end portion connected to said end connection; a resin bearing holder inserted in said shaft installation hole with a first part protruding toward the segment pattern and second part extending toward the second surface of said printed wiring commutator device; and a resin eccentric weight having a density exceeding 3 at a fan-like arc-shaped portion of said printed wiring commutator device.