|発明の名称||VIBRATION/NOISE REDUCTION DEVICE|
PROBLEM TO BE SOLVED: To provide a vibration/noise reduction device which can efficiently convert a wide frequency range of vibrations or noises over a widest possible area into electric energy, and enables the mounting position of the vibration/noise reduction device to be easily changed or transferred when the change, transfer and addition of the mounting position are required.
SOLUTION: (a) In the vibration/noise reduction device comprising an energy conversion system for converting vibrations and noises into electricity and an energy consumption means for consuming the converted electric energy as thermal energy, (b) the energy conversion system is configured of two or more sheets of piezoelectric loudspeakers 2 in each of which a vibrating plate 21 constituted of piezoelectric ceramics or the like is supported on an elastic support 22, and an electrode is connected to the vibrating plate 21, and (c) those piezoelectric loudspeakers are attached to a sheet-like magnet 6, and the magnet is attached to a suppression object 1 of a magnetic substance by magnetic attraction.
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