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US 2024/0380339 A1Published application
Power generation device
AssigneeDENSO TEN Limited
InventorHiroyuki WATABE
Life of this patent
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Abstract
A power generation device includes a coil, a magnet, and a diaphragm. The magnet is provided at a position distant from the coil, having magnet pole faces facing a direction of the coil. The diaphragm vibrates upon receiving a sound wave, having either the coil or the magnet being placed. The diaphragm generates power by generating an electromotive force in the coil by a change in a magnetic field of the coil caused by changing a relative position of the coil and the magnet by vibration.
Claims12
A power generation device comprising:
- a coil;
- a magnet that is provided at a position distant from the coil, having magnet pole faces facing a direction of the coil;
- and
- a diaphragm that vibrates upon receiving a sound wave, having either the coil or the magnet being placed.
1 more element
Dependencies are inferred from the claim text.