| 摘要 |
PURPOSE: A piezoelectric generating device using compressed air is provided to maximize the efficiency of piezoelectric generation by minimizing the space between upper and lower plates in which compressed air acts. CONSTITUTION: A piezoelectric generating device using compressed air comprises piezoelectric elements(1), support plates, springs(2), an outlet valve(5), and an inlet valve. The support plates are arranged on a side applying pressure to the piezoelectric elements and prevent the backflow of compressed air so that the compressed air applies a compressive force in a specific direction. The compressed air is injected to the inlet valve at the state the outlet valve is closed so that the compressive force is transferred to the support plates. The compressive force is transferred to the springs and the piezoelectric elements and electric power is generated.
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