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公开(公告)号:US08922098B2
公开(公告)日:2014-12-30
申请号:US13501001
申请日:2010-10-08
CPC分类号: H02N2/186 , B60C23/0411 , H01L41/1134 , Y10T29/42
摘要: 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.
摘要翻译: 装置(100)从振动和/或应变中收获能量并利用电容(102a,102b)和压电元件(105)。 操作原理是平面外电容式收集器,其中用压电元件(105)产生电容元件的偏置电压。 该装置利用电容器板(102a,102b)之间的薄电介质膜(104)使收获的能量最大化,并使收割机能够以半接触方式工作,从而防止短路。 例如,当在车轮等中使用时,电容器在每次罢工或轮的每一匝处闭合并打开,因此独立于收割机的机械共振频率。
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公开(公告)号:US20120206017A1
公开(公告)日:2012-08-16
申请号:US13501001
申请日:2010-10-08
CPC分类号: H02N2/186 , B60C23/0411 , H01L41/1134 , Y10T29/42
摘要: A device (100) harvests energy from vibration and/or strain and utilises both capacitive (102a, 102b) and piezo-electric 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 utilised 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.
摘要翻译: 装置(100)从振动和/或应变中收获能量并且利用电容(102a,102b)和压电元件(105)。 操作原理是平面外电容式收集器,其中用压电元件(105)产生电容元件的偏置电压。 该装置利用电容器板(102a,102b)之间的薄电介质膜(104)使收获的能量最大化,并使收割机能够以半接触方式工作,从而防止短路。 例如,当在车轮等中使用时,电容器在每次罢工或轮的每一匝处闭合并打开,因此独立于收割机的机械共振频率。
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