An ultra-broadband high-efficiency piezoelectric vibration energy harvesting device
A vibration energy collection and piezoelectric effect technology, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of low energy conversion efficiency and achieve improved conversion Efficiency, improved stability, and reduced power loss
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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] refer to figure 1 , an ultra-broadband high-efficiency piezoelectric vibration energy harvesting device, including a bracket and an oscillating body, wherein: the bracket consists of a top bracket 1a, a middle bracket 1b and a bottom bracket 1c stacked sequentially from top to bottom. refer to figure 2 , the three brackets all adopt a cubic structure, and each cube is provided with a cavity that runs through the upper and lower end faces. In this example, the bracket 1 adopts a custom-made structure made of acrylic plate material. The oscillator includes a low-frequency oscillator and a high-frequency oscillator; the low-frequency oscillator 2 includes a low-frequency mass 21, a low-frequency reed 22 and a low-frequency cantilever beam module 23; the high-frequency oscillator 3 includes a high-frequency mass 31, a high-freque...
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