VIBRATION POWER GENERATOR

WIPO Patent Application WO/2015/087956

A1

Provided is a vibration power generator with a novel structure which can efficiently and stably generate power even in circumstances in which the frequency range and direction of the inputted vibration vary. A vibration system with multiple degrees of freedom is configured which comprises a first vibration system (32) and a second vibration system (34) arranged in series and each having a different eigenfrequency. Meanwhile, the second vibration system (34) is arranged housed inside of a housing space (68) in a first mass member (66) having a hollow structure, and by means of a support unit (42) protruding from the first mass member (66), the base end of a leaf spring (50) of the second vibration system (34) is supported in a position further into the housing space (68) than the peripheral wall unit (72) of the first mass member (66). A power generating element (16) is mounted on the leaf spring (50), and a second mass member (48) is provided on the distal side of the leaf spring (50).

HASEGAWA KOICHI (JP)
KURIKUMA HAJIME (JP)
KATSUMURA HIDENORI (JP)
KAGATA HIROSHI (JP)
TAMURA MASAYA (JP)

PCT/JP2014/082794

June 18, 2015

December 11, 2014

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SUMITOMO RIKO CO LTD (JP)
PANASONIC IP MAN CO LTD (JP)

H02N2/18

WO2012137695A1

2012-10-11

US20130062999A1	2013-03-14
US20110204752A1	2011-08-25
KR20130010760A	2013-01-29
JP2013010416A	2013-01-17

KASAI, Yoshitaka et al. (JP)
Yoshitaka Kasai (JP)

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