Title:
PIEZOELECTRIC POWER GENERATION DEVICE, PIEZOELECTRIC POWER GENERATION MODULE, AND TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2018/056059
Kind Code:
A1
Abstract:
A piezoelectric power generation device (100A) is equipped with one or more piezoelectric elements (120a), a support member (110), a movable part (130), and an external force-transmitting part. The piezoelectric elements (120a) are flexible, and generate power by deforming in the thickness direction. The support member (110) supports the piezoelectric elements (120a) so as to allow flexural deformation. The movable part (130) is positioned so as to face the piezoelectric elements (120a), and is capable of displacing in a direction which substantially aligns with the thickness direction of the piezoelectric elements (120a) when an external force is applied thereto. The external force-transmitting part includes a reverse spring (160), and transmits external force received by the movable part (130) to the piezoelectric elements (120a). The reverse spring (160) is positioned between the piezoelectric elements (120a) and the movable part (130).
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Inventors:
KANBAYASHI TSUGUJI (JP)
Application Number:
PCT/JP2017/032196
Publication Date:
March 29, 2018
Filing Date:
September 07, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02N2/18; H01L41/113
Domestic Patent References:
WO2015072258A1 | 2015-05-21 | |||
WO2012057246A1 | 2012-05-03 | |||
WO2016151985A1 | 2016-09-29 | |||
WO2017104530A1 | 2017-06-22 |
Foreign References:
JP2005229655A | 2005-08-25 | |||
JP2014131409A | 2014-07-10 | |||
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Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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