An s-type piezoelectric vibration energy harvesting device

A piezoelectric vibration and energy harvesting technology, which is applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve high output impedance, high voltage, low output power, etc. problem, to achieve high voltage output capability, lower natural frequency, and effective collection

Active Publication Date: 2018-10-23
CHINA DATANG TECH & ENG
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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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  • An s-type piezoelectric vibration energy harvesting device
  • An s-type piezoelectric vibration energy harvesting device
  • An s-type piezoelectric vibration energy harvesting device

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] An S-type piezoelectric vibration energy harvesting device, such as figure 1 shown, including:

[0030] The cantilever beam is placed horizontally and in the shape of a flat plate. The cantilever beam turns continuously and includes multiple layers of substrates 1 arranged in parallel connected in an S-shape. The substrates 1 connected in sequence are formed integrally. It is chamfered, and the gap between each layer of substrates 1 is the same. A round hole is drilled at the head end of the first layer substrate 1 of the cantilever beam as the fixed end 4, so as to facilitate the fixing o...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 征少卿崔超毛辉宋红兵赵允涛杨振华陈慧雁刘卓辉刘鑫
Owner CHINA DATANG TECH & ENG
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