Patent ID: 6661131
Filing Date: 2003-12-09
Classification: H02K

Abstract:
A motor comprising:a bracket defining (i) a bearing housing unitarily formed with said bracket, and (ii) a mounting base for mounting the motor to an apparatus, said mounting base being unitarily formed with said bracket; a metal fixed to an inner wall of said bearing housing, wherein said metal is impregnated with oil; a stator on an outer wall of said bearing housing, said stator including a stator core with a coil therearound; a rotor including (i) a frame having in a top surface thereof through-holes, (ii) a shaft fixed to said frame, and (iii) a rotor magnet fixed to said frame, a cap of magnetic material facing said through-holes and spaced axially from said through-holes, said cap being spaced from an outer circumference of said metal and being axially spaced from an end face of said metal, and also being fixed at an inner circumference of said stator core; and an attracting magnet positioned outside of said cap.