A portable power storage device with a self-generation and nano-capacitor storage structure, the portable power storage device comprising:
- a shaft assembly which includes a non-conductive rotor shaft having a tool connection part formed at an end thereof, and conductive fixed shafts disposed on both sides of the rotor shaft to face each other at positions spaced apart from a center thereof, wherein bearings are mounted between the rotor shaft and the fixed shafts;
- a rotating coil plate which is made of a non-conductive material and is coupled to the rotor shaft between the fixed shafts, wherein bearings are mounted between an inner circumference of the fixed shafts and outer circumferences of the rotor shaft so as to allow the rotating coil plate to rotate freely, wherein a plurality of coil bodies having a core-less coil winding structure are radially arranged in the rotating coil plate;
- a pair of fixed magnet plates which are made of an aluminum material so as to have conductivity, and are mounted on the fixed shafts, respectively, so as to be spaced apart from both sides of the rotating coil plate, wherein a plurality of induction magnet bodies corresponding to the plurality of coil bodies are arranged radially therein, and a plurality of opening parts are alternately formed between adjacent induction magnet bodies, wherein respective outer peripheries of the pair of fixed magnet plates are connected to each other through a clamp ring;
- a power storage unit which is installed in the rotating coil plate, and is connected to the plurality of coil bodies through a rectifying element and a constant voltage unit to store generated electricity, wherein the power storage unit is configured to conduct the electricity with the pair of fixed magnet plates through a connection terminal to receive the electricity from the fixed magnet plates;
- and
- a main body in which both ends of the rotor shaft are exposed to an outside, and is configured to surround and accommodate the rotating coil plate and the pair of fixed magnet plates so that the fixed shafts and the pair of fixed magnet plates are fixed therein, wherein an output connector is installed therein, which is connected to the pair of fixed magnet plates to receive the electricity and output the electricity to the outside,
- wherein, when the rotating coil plate rotates, the electricity is generated by induction action between the plurality of coil bodies and the plurality of induction magnet bodies of the pair of fixed magnet plates, and the generated electricity is stored in the power storage unit, and
- wherein the power storage unit is installed at a position where it is eccentric from a center of the rotating coil plate to one side,
- such that a center of gravity of the rotating coil plate is always positioned at a lower portion thereof.