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Piezoelectric generating profile instrument damping disc based on Karman vortex street phenomenon

A technology of piezoelectric power generation and Karman vortex street, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, battery circuit devices, generators/motors, etc., can solve the problems of equipment energy consumption and use, and achieve a solution Effects of Speed ​​Regulation and Energy Harvesting Problems

Active Publication Date: 2018-04-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a piezoelectric generating profiler damping disk based on the Karman vortex street phenomenon, which uses a part of the energy consumed by the damping disk to generate electricity and solves the problem of energy consumption and use of equipment

Method used

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  • Piezoelectric generating profile instrument damping disc based on Karman vortex street phenomenon
  • Piezoelectric generating profile instrument damping disc based on Karman vortex street phenomenon
  • Piezoelectric generating profile instrument damping disc based on Karman vortex street phenomenon

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Experimental program
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Embodiment Construction

[0023] like Figure 1~3 As shown, the damping plate of the piezoelectric power generation profiler based on the Karman vortex phenomenon in this embodiment includes: a profiler connecting bracket 1, a speed-increasing cavity 2, a cantilever beam 3 with a piezoelectric layer, an outer retaining ring 4 and an energy storage unit (not shown in the figure).

[0024] The profiler connecting bracket 1 is an inner cylinder structure, and the outer baffle ring 4 is an outer cylinder structure coaxially arranged with the inner cylinder. The area between the profiler connecting bracket 1 and the outer baffle ring 4 is a speed increasing area, and the speed increasing area is divided into five speed increasing chambers 2 by five baffles 5 , and the speed increasing chamber 2 includes a necking section 201 and a necking The small end of the segment is connected to the constant velocity segment 202, the cantilever beam 3 extends radially along the inner cylinder, one end is fixed on the o...

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PUM

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Abstract

The invention discloses a piezoelectric generating profile instrument damping disc based on Karman vortex street phenomenon. The piezoelectric generating profile instrument damping disc comprises a profile instrument connection support and a speed increase chamber, and also comprises a cantilever beam crossing the speed increase chamber and having one end hanging in air, and an energy-storage unit, a piezoelectric layer is attached to a peripheral part of the cantilever beam, so that water flow passes through the speed increase chamber, and the cantilever beam vibrates for generating and storage is realized to the energy-storage unit. According to the piezoelectric generating profile instrument damping disc, by arranging the cantilever beam in the speed increase chamber, damping is generated during a damping disc working process, a part of energy can be simultaneously recovered, and speed regulation and control as well as energy collection can be simultaneously solved.

Description

technical field [0001] The invention relates to the technical field of underwater profilers, in particular to a damping plate of a piezoelectric generation profiler based on the Karman vortex phenomenon. Background technique [0002] A profiler is an instrument that can monitor various data in the direction of the vertical profile of the ocean. It collects data in the process of sinking and rising. Considering the response time of the equipped sensor, the profiler should not run too fast, and a damping disc should be equipped to reduce its movement speed. [0003] In the prior art, the damping disk of the marine test-related device generally adopts a felt disk or a metal disk, which generally only increases its motion resistance and fails to collect energy. [0004] In order to solve the above problems, some researchers have proposed some devices that utilize the motion of damping disks to generate electricity. For example, the patent document with publication number CN 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C7/00G01C13/00H02J7/32H02N2/18
Inventor 杨灿军臧玉嘉陈燕虎夏庆超
Owner ZHEJIANG UNIV
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