| 摘要 |
PURPOSE: An eccentric rotor and a space formed on an axial direction type coreless vibrating motor are provided to prevent the separation of bearing by welding the bearing to a printed circuit board. CONSTITUTION: An eccentric rotor comprises a printed circuit board(1), a plurality of homocentric armature coils(2), a bearing(3), an eccentric weight(W), a resin(4), and a commutator. An axis support hole is arranged at the center of the printed circuit board. The bearing is arranged in the location of the axis support hole. The circumference of the bearing is welded in the printed circuit board. The main part of the eccentric weight is arranged so that they are not overlapped with the printed circuit board. |
