ELECTROMAGNETIC ENERGY HARVESTING DEVICES FROM AMBIENT VIBRATION

摘要

PURPOSE: A vibration energy collecting device based on an electromagnetic force is provided to implement an environment-friendly alternative energy source by removing harmful byproducts in a generation process. CONSTITUTION: A magnet unit(13) moves according to an external vibration. A buffer unit(11) supports the magnet unit. The buffer unit applies energy from the magnetic unit by transmitting vibrations. A coil unit is spirally wound around the magnet unit. A support unit maintains a constant distance between the coil unit and the magnet unit in a non-vibration state. The support unit supports the mutual combination between the coil unit and the magnet unit and protects the buffer unit and the coil unit from the outside. The magnet unit reciprocates in a spiral axis direction of the coil unit according to the surrounding vibrations. The magnet unit generates an electromotive force on both sides of the coil by using the variation of the magnetic field due to a relative position change.