| 摘要 |
A multi-mode vibration power generator, comprising a bistable piezoelectric cantilever beam and an auxiliary structure. One end of the bistable piezoelectric cantilever beam is fixed, a piezoelectric layer is adhered to the root of a base layer, and a lead wire leads out from the surface of the piezoelectric layer and from the surface of the base layer, respectively. The free end of the bistable piezoelectric cantilever beam is adhered to a permanent magnet I. A permanent magnet II is disposed opposite the permanent magnet I. The permanent magnet I and the permanent magnet II are mutually repelling. The permanent magnet II is supported by a horizontally disposed spring, the other end of the spring being fixed. Both the permanent magnet I and the permanent magnet II are flanked by supports and coils, the supports being fixedly disposed and the coils being wound around the supports. The present invention effectively marries piezoelectric power generation with electromagnetic power generation, thereby significantly increasing the overall mechanical power conversion efficiency of a structure and greatly enhancing the power generation capabilities of a system. |
