Patent ID: 7030521
Filing Date: 2006-04-18
Classification: H02K,Y10S

Abstract:
1. A motor in which circuit boards for controlling the motor are attached within a housing comprising: two or more circuit boards each having an inserting hole whereby the inner diameter of each board is approximately the same; a rotating part having at least one rotor magnet arranged in a circular manner; a stator having a coil which is connected to circuits of the circuit boards, the stator located confronting the rotor magnet in radial direction; a cylindrical sleeve for fixing an inner periphery of the stator to an outer periphery surface thereof including: each circuit board penetrated by the sleeve through the inserting hole and fixed to the board attachment portion; a bracket for fixing the sleeve; and a bearing part arranged between an outer periphery of the rotating part and an inner periphery of the sleeve for supporting the rotating part so as to rotate about a rotational axis.