发明名称 |
METHOD AND DEVICE FOR ENERGY HARVESTING |
摘要 |
<p>A device (100) harvests energy from vibration and/or strain and utilizes both capacitive (102a, 102b) and piezoelectric elements (105). The principle of operation is out-of-plane capacitive harvester, where the bias voltage for the capacitive element is generated with a piezoelectric element (105). The device utilizes a thin dielectric film (104) between the capacitor plates (102a, 102b) maximizing the harvested energy and enabling the harvester operation in semi-contact mode so that short circuits are prevented. For example when utilized in a wheel or the like, the capacitor is closed and opened at every strike or every turn of a wheel being thus independent of the harvester's mechanical resonance frequency.</p> |
申请公布号 |
EP2485979(A4) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20100821628 |
申请日期 |
2010.10.08 |
申请人 |
VTI TECHNOLOGIES OY;TOYOTA MOTOR CORPORATION |
发明人 |
KAERKKAEINEN, ANNA-MAIJA;KYYNAERAEINEN, JUKKA;ROSCHIER, LEIF;KUISMA, HEIKKI |
分类号 |
B60C23/04;H02N1/00;H02N2/18 |
主分类号 |
B60C23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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