| 摘要 |
A piezo power generator for a bridge is provided to offer power to a safety diagnosis sensor of the bridge by converting mechanical energy such as vibration transmitted to the bridge into electrical energy. A piezo power generator includes piezoelectric bodies(11,12), a receiving unit(20), an inserting unit(30), and a head(40). The piezoelectric bodies(11,12) convert external power into electric energy. The receiving unit(20) receives the piezoelectric bodies(11,12), and is fixed to any one unit among a plurality of units which form the bridge. The inserting unit(30) is received in the receiving unit(20) to be slid in the direction to face the piezoelectric bodies(11,12), and is fixed to another unit among the plurality of units which form the bridge. The head(40) is arranged between an end of the receiving unit side of the inserting unit(30) and the piezoelectric bodies(11,12) to be received inside the receiving unit(20), and transmits the external power applied to the insertion unit(30) to the piezoelectric bodies(11,12). |
