Patent ID: 8581475

Claim:
A power generating apparatus comprising: a plurality of piezoelectric elements; a main body configured to receive the piezoelectric elements, the piezoelectric elements spaced apart from one another to protect the piezoelectric elements; a piezoelectric element support disposed at each center of the piezoelectric elements to support and to move the piezoelectric elements to pressurize and to deform the piezoelectric elements by using movable motion of the piezoelectric element support; a driving unit provided in the main body and configured to operate pressurizing and deforming the plurality of piezoelectric elements by operating the piezoelectric element support; and a power transmission unit, connecting the driving unit to the piezoelectric element support, configured to convert a rotational motion of the driving unit into a straight-line motion and to transmit the straight-line motion to the piezoelectric element support, wherein the piezoelectric elements are pressured and deformed, wherein a guide portion extends downward from the center of the piezoelectric element support, and to contact the bottom of a receiving space portion so as to stably guide the straight-line motion of the piezoelectric element support, and wherein a guide rail is inserted into a guide groove portion protruded from the bottom surface of the guide portion to prevent the piezoelectric element support from moving from side to side.