Patent ID: 6734594
Filing Date: 2004-05-11
Classification: H01R,H02K,Y10S

Abstract:
A vibration motor, comprising:a cover plate; a casing coupled to said cover plate and providing an internal space with said cover plate; a shaft coupled between central portions of said cover plate and said casing; a first printed circuit board (PCB) mounted on said cover plate; a magnet mounted on said cover plate and disposed around sad first PCB; a second PCB rotatably supported by said shaft and provided with a commutator having a plurality of segments at a bottom of said second PCB; an insulator mounting coils coupled to said commutator to said second PCB; and a pair of brushes having one end coupled to said first PCB and the other end extended from said one end toward said commutator and along a first line, the first lines of the brushes converging, said the other end having a curved bending portion extended from said the other end and having a contact line substantially perpendicular to said bending first line to be in line contact with said commutator.