Power generation device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakafumi FUKUI, Hidenori KATSUMURA, Hidenori OKUMURA
Life of this patent
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Abstract
A power generation device includes a holder with a natural frequency of fA, and two or more vibration energy harvesting elements held by the holder and having natural frequencies different from each other. Out of the vibration energy harvesting elements, one has the lowest natural frequency fBmin satisfying the following Expression 1, and another one has the highest natural frequency fBmax satisfying the following Expression 2: fBmin≥(0.925−2.5 N/100)fA (1), and fBmax≤(1.075+2.5 N/100)fA (2), where N is the number of the vibration energy harvesting elements.
Claims9
1-8. (canceled)
A power generation device, comprising:
- a support member with a natural frequency of fA;
- and
- two or more vibration energy harvesting elements supported by the support member and having natural frequencies different from each other, wherein
- one of the vibration energy harvesting elements has a lowest natural frequency fBmin satisfying the following Expression 1, and another one of the vibration energy harvesting elements has a highest natural frequency fBmax satisfying the following Expression 2:
- fBmin≥(0.925−2.5 N/100)fA (1), and
- fBmax≤(1.075+2.5 N/100)fA (2),
- where N is the number of the vibration energy harvesting elements.
Dependencies are inferred from the claim text.