Wind-power piezoelectric generator device based on multi-layer cantilever beams

Abstract

The invention discloses a wind-power piezoelectric generator device based on multi-layer cantilever beams, and belongs to the technical field of wind power generation. The wind-power piezoelectric generator device comprises generation device supports and a crank slider mechanism formed by a windmill support, a windmill, a windmill shaft, a driving rod, a driven rod and sliding blocks; the slidingblocks are slidingly arranged in the generation device supports; a supporting base shaft is arranged between the sliding block and the sliding block; a piezoelectric generator device is arranged on the supporting base shaft and formed by three layers of piezoelectric assemblies, wherein each piezoelectric assembly is formed by a cantilever beam supporting base, cantilever beams, a balance weight ring, springs, piezoelectric sheets and U-shaped balance weight blocks, each layer of cantilever beams are annularly distributed in the center of the cantilever beam supporting base, the outer ends ofthe cantilever beams are connected with the balance weight ring through the springs, the size of each layer of cantilever beams is different from the size of the balance weight ring, the U-shaped balance weight blocks are installed on the balance weight ring at the same time, and the piezoelectric generator device converts wind energy through the crank slider mechanism. According to the wind-powerpiezoelectric generator device based on the multi-layer cantilever beams, the piezoelectric generator device can better adapt to the vibration frequency in the environment, and therefore effectiveness of mechanical vibration energy recovery is improved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and relates to a wind piezoelectric power generation device, in particular to a wind power piezoelectric power generation device based on a multilayer cantilever beam. Background technique [0002] The current wind power generation devices have high cost and low efficiency. At the same time, due to the intermittent nature of natural wind, wind power generation is obviously restricted by regions and climates. Piezoelectric power generation uses the positive piezoelectric effect of piezoelectric ceramics to convert mechanical energy into electrical energy. The piezoelectric power generation device collects the vibration energy in the environment through piezoelectric materials and converts it into microelectronic products that can replace batteries. The piezoelectric power generation device has the advantages of simple structure, no need for external power supply, almost unlimited lif...

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Problems solved by technology

[0004] Aiming at the shortcomings of current multi-layer cantilever beams with single vibration frequency, inability to effectively absorb vibration energy in the environment, low energy utilization efficiency, and poor environmental adaptability, the present invention proposes a wind-driven piezoelectric power generation device based on multi-layer cantilever beams, through The multi-resonance frequency piezoelectric power generation structure can solve the shortcomings of traditional wind power generation devices such as complex structure and high cost, and can solve the problem of single vibration frequency of multi-layer cantilever beams, and can also absorb vibration energy in the environment more effectively, further improving energy efficiency

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