Vibration pick-up structure on basis of flexible main beam for vibration energy harvester
A vibration energy harvesting, main beam technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. Small Young's modulus and wide band effect
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[0025] In order to enable those skilled in the art to better understand the present invention, the present invention will be further clearly and completely described below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, the present invention includes a flexible main beam 1, a piezoelectric cantilever beam 2 and a mass block 3. The flexible main beam 1 is a rectangular frame structure with a rectangular hole in the middle; one end of the piezoelectric cantilever beam 2 is bonded and fixed on the flexible main beam 1, the other end is suspended above the rectangular hole, the suspended length of the piezoelectric cantilever 2 is less than the width of the rectangular hole, and the mass block 3 is attached to the suspended end of the piezoelectric cantilever 2; several piezoelectric cantilever beams 2 are respectively in The two sides of the rectangular hole are interdigitated and arranged at equal intervals parallel to the short side of the rec...
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