Power generating device and power generating module using same

A power generating device comprising:

• a device substrate having a supporting section, a cantilever section swingably supported to said supporting section, and a weight section provided at one end of said cantilever section away from the other end supported to said supporting section;
• and
• a power generating section carried by said cantilever section and configured to generate an AC voltage in response to a swing movement of said cantilever section,
• wherein said power generating section comprises:
• a piezoelectric body;
• and
• a plurality of electrode pairs each constituted by a pair of electrodes that are placed on opposite sides of said piezoelectric body with regard to a thickness direction of said piezoelectric body to define a functional section therebetween, each of the functional sections being cooperated with the related electrode pair to define a power generating element;
• wherein a plurality of the power generating elements comprises a first power generating element and a second power generating element configured to give a polarization orientation opposite to each other in the thickness direction, and
• wherein said first and second power generating elements are configured to have the corresponding electrodes being connected to each other by means of a wiring member on the same surface of said piezoelectric body with regard to the thickness direction thereof, such that all of said plurality of the power generating elements are connected in series.