| 摘要 |
A power generating device using a stair is provided to generate electric energy without environmental pollution by using a load of the stair. A power generator using stairs includes a movable plate(120), a rotation axis(122), a stopper(210), a pressure protrusion, a cylinder(600), a piezoelectric element(610), a spring, and a current collector(500). The movable plate is formed by cutting a horizontal step into the plural parts in a longitudinal direction. The rotation axis axially fixes the longitudinal center of the movable plate in both sides of the horizontal step. The stopper is protrusively formed in the bottom of the vertical plate to receive one end of the movable plate. The pressure protrusion is fixed in the bottom of the other side of the movable plate. The cylinder is formed by inserting the pressure protrusion. The piezoelectric element is installed in an inner bottom of the cylinder. The spring is inserted in an outer circumference of the pressure protrusion. The current collector is connected to a lead line drawn from the piezoelectric element. |
