Patent ID: 7173355

Claim:
A bar-type vibration motor, comprising: a stator unit including a body of an integral double-pipe structure and a magnet attached to the body, wherein the body includes a support tube, a bearing insert tube stepped out and extending forwardly from the support tube, a first outer wall folded back from the insert tube, and a second outer wall stepped out and extending rearwardly from the first outer wall and around the support tube; a rotor unit including a rotary shaft, an eccentric weight, a stationary member, a commutator, and an armature, said rotary shaft having one end fixed to said eccentric weight and the other end fixed to said stationary member, said rotary shaft being rotatably supported in cantilever fashion by said body at a portion of the rotary shaft adjacent to the eccentric weight, said commutator having a plurality of segments attached on one side of the stationary member, and said armature being fixed to the stationary member spaced apart from the magnet, and electrically connected with the commutator; and a power supply unit including a fixing cap fixed to the body and a brush mounted on the fixing cap to supply voltage to the armature.