An s-type piezoelectric vibration energy harvesting device

Abstract

The invention relates to an S-type piezoelectric vibration energy collection device and belongs to the technical field of energy conversion and collection. The S-type piezoelectric vibration energy collection device comprises a cantilever beam which is arranged horizontally and is tabulate, the cantilever beam has continuous turns and comprises multiple baseplates which are parallelly arranged and sequentially connected to be S-shaped, the head end of the baseplate on the first layer of the cantilever beam is a fixed end, a piezoelectric piece is pasted at a position away from the fixed end of the baseplate on the first layer by 10mm, and a mass block is fixed on the baseplate on the outermost layer of the cantilever beam. The S-type piezoelectric cantilever beam can realize sympathetic vibration of the structure of the cantilever beam and the environment more easily, vibration energy can be collected effectively, and the S-type piezoelectric vibration energy collection device has high voltage output capability.

Description

technical field [0001] The invention relates to an S-shaped piezoelectric vibration energy collection device, which belongs to the technical field of energy conversion and collection. Background technique [0002] In the status monitoring and fault diagnosis of power plants and substations, various micro sensors with the characteristics of small size and high function integration have emerged. In the harsh working environment of power plants and substations, these miniature sensors usually require an independent power supply to provide power for them, or their own energy collection and integrated supply functions. Tiny sensors can hardly function without a proper power supply. Today's micro-energy research is mainly based on conventional energy, using processing technology to manufacture self-powered components. [0003] There are many types of traditional micro-batteries, such as fuel cells, which have the advantages of no pollution and high efficiency, but there are few ...

AI Technical Summary

Problems solved by technology

Existing vibration power generation devices include electrostatic vibration energy harvesting modules and electromagnetic vibration energy harvesting modules. The electrostatic vibration energy harvesting modules need an external power supply, and the output voltage is high, the current is low and the output impedance is too high; while the electromagnetic vibration The energy harvesting module has a large magnetic flux leakage and the output power is too low

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