| 摘要 |
<p>The present invention relates to a doughnut type energy harvesting device capable of receiving 2D vibration energy generated from the surroundings in a single structure through a structure to insert a plurality of cylindrical magnets into a doughnut type body, wherein the inside of the body is empty. The doughnut type energy harvesting device according to the present invention includes: the empty body, two or more movable magnets which are inserted into the body and have surfaces facing each other to have the same polarities, and a coil which is wound around the outer circumference of the body. Electric energy is generated by generating a current by making a plurality of movable magnets in the body pass through the coil by the mixture of a reciprocation motion and a circular motion by a repulsive force between the movable magnets when a vibration is applied from the outside.</p> |
