| 摘要 |
PURPOSE: A flat coreless vibration motor is provided to reduce a cost by removing a hole filling process and a thick deposition of a resist. CONSTITUTION: A flat coreless vibration motor comprises a case(4), a bracket(5), and brushes(7). The case(4) and the bracket(5) forms a housing, and an eccentric rotor(R) is mounted at a shaft(6), which is attached at the bracket(5) through a bearing hole(Ra), so as to be rotated. A slider washer(4a) is disposed at the zenith of the case(4), and a sliding movement part(Rb) is contacted with the sliding washer(4a) by the brushes(7). A magnet(8) is attached to the bracket(5) in order to endow a magnetic field to the eccentric rotor(R) with an aperture interposed therebetween. A brush base(9) is a flexible substrate at which the pair of brushes(7) are installed.
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