Patent ID: 6278216
Filing Date: 2001-08-21
Classification: B60K,B60L,B62M,H02K,Y02T

Abstract:
A vehicle motor installed in the center of a wheel of a motor bicycle and controlled to rotate the wheel of the motor bicycle, the vehicle motor comprised of a wheel hub, a wheel axle, at least one annular rotor, and at least one disk stator, wherein:said wheel hub is comprised of a ring shaped casing, two cover shells covered on the ring shaped casing at two opposite sides and fixedly secured thereto by screws, and two axle bearings respectively mounted on said cover shells at the center to support said wheel axle;said wheel axle is supported in said axle bearings and inserted through said at least one disk stator and said wheel hub, and fixedly connected to the front fork (or rear fork) of the motor bicycle;said at least one annular rotor each comprises a yoke ring fixedly connected between said cover shells of said wheel hub within said ring-shaped casing, and a plurality of magnets equiangularly arranged at said yoke ring at an inner side;said at least one disk stator each comprises a disk body fixedly mounted on said wheel axle and suspended inside said wheel hub within said at least one annular rotor, a silicon steel stack fixedly mounted around the periphery of said disk body, said silicon steel stack comprising a plurality of T-teeth wherein a three-phase winding is mounted on said T-teeth of the silicon steel stack of said at least one disk stator;said T-teeth of said at least one disk stator consist of a range of a number that is: T=(M*N)+/-3, wherein T is a number of T-teeth of said at least one disk stator, M is a number of magnets of said at least one annular rotor, and N is an integer number.