| 摘要 |
A self power generator of a portable electronic apparatus is provided to obtain electrical energy required for the electronic apparatus by using a vibration applied to the electronic apparatus. A self power generator of a portable electronic apparatus includes a casing(14), a fixing disk(16), a plurality of piezoelectric elements(20), a ring-shaped vibrator(22) and a plurality of springs(24). A casing is sealed by the cover. The fixing disk is fixed in the inner center of the casing. The plurality of piezoelectric elements are arranged in a circumference surface of the fixing disk with a constant interval. Each piezoelectric element is comprised of a plurality of electrodes. The diameter of the ring-shaped vibrator is larger than the diameter of the fixing disk. The ring-shaped vibrator generates the electric potential difference by colliding with the plurality of piezoelectric elements. The plurality of springs connect the ring-shaped vibrator and the casing. |
