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Double-sleeve clamping shear type piezoelectric beam vortex-induced vibration energy conversion device

An energy conversion device and vortex-induced vibration technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve problems such as limited use and limited battery life

Active Publication Date: 2021-01-29
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If powered by batteries, the battery has a limited lifespan and needs to be replaced periodically, limiting its use in certain scenarios

Method used

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  • Double-sleeve clamping shear type piezoelectric beam vortex-induced vibration energy conversion device
  • Double-sleeve clamping shear type piezoelectric beam vortex-induced vibration energy conversion device
  • Double-sleeve clamping shear type piezoelectric beam vortex-induced vibration energy conversion device

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Experimental program
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Embodiment 1

[0020] The vortex-induced vibration energy conversion device of the double-sleeved shear piezoelectric beam of the present invention includes a flow-blocking cylinder 1, a fixed cylinder 2, a piezoelectric ceramic chip 3, a lead hole 4, and a base 5; The ceramic wafer 3 is bonded to the upper end of the outer wall of the fixed cylinder 2. After the flow-blocking cylinder 1 is thermally expanded, it is socketed with the upper part of the fixed cylinder 2 bonded with the piezoelectric ceramic wafer 3. After cooling, the tangential pole The piezoelectric ceramic chip 3 is tightly fixed between the blocking cylinder 1 and the fixed cylinder 2. The electrodes of the piezoelectric ceramic chip 3 are lead from the lower end of the fixed cylinder to the base 5, and the wires are sealed at the base through waterproof sealing. Lead out from the lead hole 4 and connect to the energy storage circuit.

[0021] When the fluid flows through the choke cylinder and meets the vortex-induced vib...

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PUM

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Abstract

The invention discloses a double-sleeve clamping shear type piezoelectric beam vortex-induced vibration energy conversion device, and relates to a power generation device, in particular to an electromechanical conversion device used for converting shear force generated when fluid flows through a flow blocking cylinder into electric energy. The power generation device comprises a flow choking cylinder, a fixed cylinder, a piezoelectric ceramic wafer and a base, the flow choking cylinder and the fixed cylinder tightly clamp the piezoelectric ceramic wafer in the middle, and when vortex-induced vibration occurs, the flow choking cylinder generates shearing force on the fixed cylinder under the simultaneous action of dragging force of forward flowing of fluid and vortex shedding lifting forcein the transverse flow direction, therefore, the piezoelectric wafer clamped between the flow choking cylinder and the fixed cylinder is driven to generate shear deformation, and then electric energyis generated. The base can be fixed at the bottom of a sea or a river or in water flow, so that fluid kinetic energy is converted into electric energy.

Description

technical field [0001] The invention relates to a power generation device, in particular to a double-sleeve sandwiched shear type piezoelectric beam vortex-induced vibration energy conversion device. Background technique [0002] Energy has always played a cornerstone role in the development of modern science and technology. Whether it is fire energy, water energy, electric energy, or solar energy, it plays an important role in people's daily life, national development, and human science and technology. The advent of the current 5G era will usher in a new era of things connected. Items that can be seen everywhere will become a node in the Internet of Things, so the power supply of these nodes will be particularly important. Common DC power can be used in places where physical connections can be reached, but how nodes in deep seas, virgin forests, and space will be powered is particularly important. If powered by batteries, the battery has a limited lifespan and needs to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/185
Inventor 李莉王永耀林杉杉安然然
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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