| 摘要 |
PURPOSE: A lighting device has a self-generator on a hub shaft of a bicycle to generate electricity without effect on the rotation of a wheel. CONSTITUTION: A lighting device comprises a generator(2) and a lighting part. The generator(2) comprises a stator(20) and a rotator(18). The stator(20) is fixed to fixed shaft(6) of a bicycle and has a ring-shaped magnet with N-S poles alternately divided and formed. The rotator(18) is installed inside the stator(20) on a hub(14) of a wheel of a bicycle and comprises a bobbin with a coil wound around to generate induced current and a pair of yokes installed on both sides of the bobbin and teethed to help the poles generated. The lighting part is installed on the rotating wheels.
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