| 摘要 |
The present invention relates to a multi-frequency electromagnetic energy harvester capable of more efficiently collecting energy in various frequency environments by vertically or horizontally arranging multiple generators having different resonance frequencies. The electromagnetic energy harvester for converting to electronic energy using vibration energy transferred from the outside comprises a housing part; fixing magnet parts which are installed in the upper end and the lower end of the housing part; a moving magnet part which is located between the fixing magnets installed in the upper end and the lower end to be vibrated; and an individual generators which is located around the moving magnet part and included a coil part winding the housing part, wherein the individual generator consists of two or more generators having different resonance frequencies and being arranged in the horizontal and vertical direction while being spaced in the minimum distance to be protected from interference of electromagnetic field generated in the individual generator. |
