Developing a Pulsed Electromagnetic Induction Generator for Pulsed Energies Harvesting

摘要

Pulsed energies, e.g. water waves, mechanical roadway energy from walking people and vehicles, etc., are generally discrete and temporary, which are di?cult to be e?ectively captured by using the traditional electric generators. To capture such pulsed energies, a piezoelectric generator is often considered and applied, but it is unfortunately until now with low working e?ciency. Therefore, a new pulsed electric generator with high working e?ciency is always expected. This article presents an invented pulsed electromagnetic induction generator which is patented by our CCT laboratory. Its output power is independent on rotational or moving speed of the generator. An unit device of this generator is an electric coil tube integrated with an inside movable induction magnet. Moreover, two push magnets are built on the two endpoints of the electric coil tube respectively. The push magnets alternately move over the endpoints of the electric coil tube and push the inside induction magnet to run through the electric coil to and fro. This action yields induced electromotive force in the electric coil and its output power is independent on moving speed of the push magnets. Integrating multiple such unit devices in an electric generator can build this special generator. This special generator is independent on rotational speed and is therefore very worthy to be widely applied for unstable energies harvesting, e.g. wind, waves of water, braking of vehicles, roadway mechanical green energies, and so on. Studying on this special generator uses diameter of copper wire, turns of coil, magnetic ?eld of induction magnet, etc. as parameters. The reached maximum working e?ciency in this work is now ca. 42%.