| 摘要 |
PURPOSE: A vibration motor is provided, in which a commutator and a brush are disposed in an axial direction, to thereby allow ease of assembly and improve productivity, while reducing size of the vibration motor. CONSTITUTION: A vibration motor comprises a cylindrical case(10) where a tube-shaped holder(13) having a magnet(31) fixed at the outer peripheral surface of the holder, is disposed; a shaft(22) inserted into the holder and supported by a plurality of bearings(b), wherein the shaft has a weight(w) coupled to the top of the shaft protruded outward; a coil(21) interposed between the case and the magnet, and which has a lower end having an inner peripheral surface fixed to the bottom of the shaft; a commutator(41) coupled to the shaft beneath the coil, and which has a plurality of segments printed at a constant interval at the bottom surface of the commutator; and a brush(45) disposed beneath the commutator, and which has an end fixed to the inner peripheral surface of the case and the other end electrically connected to segments of the commutator.
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