Small power generator and portable electronic apparatus

摘要

A power generator has a power generation unit for generating electric power, a rotary unit and a power transmission unit. The power generation unit includes a stator having a stator core and a rotor disposed in the stator. The rotor has a rotor shaft and a driven gear disposed on the rotor shaft and is configured to be driven to rotate the rotor shaft. The rotary unit has a driving gear for undergoing rotational movement to rotate the rotor shaft via the driven gear to generate electric power. The power transmission unit has an intermediate gear for transmitting a rotational force of the driving gear of the rotary unit to the driven gear of the rotor shaft. The intermediate gear has at least one rotary shaft disposed inside of the stator core.

主权项

1. An inner rotor type small power generator for generating power, comprising:
a stator having a plurality of core windings; a rotor disposed inside of the stator, the rotor having a rotor shaft on which a driven gear is disposed and a circular permanent magnet; a rotary unit configured to be rotated by a user at the time of power generation by the power generator, the rotary unit having a driving gear that undergoes rotation during rotation of the rotary unit; and a transmission unit that transmits rotation of the driving gear to the driven gear of the rotor shaft through an intermediate gear, at least one rotary shaft of the intermediate gear being disposed outside the rotor and being rotatably disposed inside the stator at a location in between the core windings of the stator.