公开(公告)号：US20100237748A1

公开(公告)日：2010-09-23

申请号：US12792151

申请日：2010-06-02

申请人： Matthew C. Malkin ,  Gerardo Peña

发明人： Matthew C. Malkin ,  Gerardo Peña

IPC分类号： F03G7/08 ,  H02N2/18 ,  H04R17/00

CPC分类号： H02N2/22 ,  H01L41/053 ,  H01L41/0536 ,  H01L41/25 ,  H02N2/021 ,  H02N2/186 ,  Y10T29/42

摘要： An energy harvesting apparatus and method that is especially well suited for harvesting low frequency broadband vibration energy from a vibrating structure is presented. The apparatus includes a pair of disc springs that are arranged in an opposing relationship. A threaded fastening member and a threaded nut extend through apertures in each of the disc springs and enable a predetermined preload force to be applied to the disc springs. The preload effectively “softens” the disc springs, thus heightening the sensitivity of the disc springs to low frequency, low amplitude vibration energy. A piezoelectric material ring is secured to each of the disc springs. Each piezoelectric material ring experiences changes in strain as its associated disc spring deflects in response to vibration energy experienced from a vibrating structure. The electrical output from each piezoelectric material ring can be used to power or activate various forms of electronic sensors and devices, or it can be conditioned and stored in a circuit for later use.

摘要翻译： 提出了一种特别适用于从振动结构中收获低频宽带振动能的能量收集装置和方法。 该装置包括以相对关系布置的一对碟形弹簧。 螺纹紧固构件和螺纹螺母延伸穿过每个碟形弹簧中的孔，并且能够将预定的预加载力施加到盘形弹簧。 预压有效地“软化”碟形弹簧，从而将碟形弹簧的灵敏度提高到低频，低振幅的振动能量。 压电材料环被固定到每个盘形弹簧。 每个压电材料环响应于由振动结构所经受的振动能量而相应的弹簧偏转，经历应变变化。 来自每个压电材料环的电输出可用于对各种形式的电子传感器和设备供电或激活，或者可将其调节并存储在电路中供以后使用。

公开(公告)号：US08227955B1

公开(公告)日：2012-07-24

申请号：US12020783

申请日：2008-01-28

申请人： Bradley J. Mitchell ,  Gerardo Peña ,  Matthew C. Malkin

发明人： Bradley J. Mitchell ,  Gerardo Peña ,  Matthew C. Malkin

IPC分类号： H02N2/18

CPC分类号： H02N10/00 ,  H02N2/18

摘要： An illustrative embodiment of a temperature-activated voltage generator includes a generator housing having a housing interior; a flexible, temperature-sensitive bimetallic element disposed in the housing interior; and a piezoelectric element carried by the generator housing. The bimetallic element is positional between a first position wherein the bimetallic element disengages the piezoelectric element and a second position wherein the bimetallic element engages the piezoelectric element. Electrical voltage output leads are electrically connected to the piezoelectric element. A voltage-generating method is also disclosed.

摘要翻译： 温度启动电压发生器的说明性实施例包括具有壳体内部的发电机壳体; 设置在壳体内部的柔性的，温度敏感的双金属元件; 以及由发电机壳体承载的压电元件。 双金属元件位于其中双金属元件脱离压电元件的第一位置和双金属元件接合压电元件的第二位置之间。 电压输出引线电连接到压电元件。 还公开了一种电压产生方法。