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Array type magnetic coupling energy harvester based on fluid excitation

A magnetic coupling, array technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve the problem of power supply of monitoring system. Get a large area of ​​promotion and application, etc.

Active Publication Date: 2021-01-15
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some of the monitoring methods proposed at present are relatively mature in technology, they have not been popularized and applied in a large area. One of the main reasons is that the power supply problem of the monitoring system has not been well resolved.

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  • Array type magnetic coupling energy harvester based on fluid excitation
  • Array type magnetic coupling energy harvester based on fluid excitation
  • Array type magnetic coupling energy harvester based on fluid excitation

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Embodiment Construction

[0020]In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. .

[0021]SeeFigure 1~8In the embodiment of the present invention, the specific structure includes:

[0022]An array type magnetic coupling energy harvester based on fluid excitation, consisting of a fixed shaft (1), a piezoelectric vibrator (2), a rectangular magnet (3), a shell (4), a shell end cover (5), and PVC A rope (6), a spherical float (7) and a bar magnet (8); the fixed shaft (1) is provided with eight straight grooves (1-1) for installing the piezoelectric vibrator (2); The piezoelectric vibrator (2) is composed of a metal substrate (2-1) and a rectangular piezoelectric ceramic sheet (2-2) bonded on the me...

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Abstract

The invention discloses an array type magnetic coupling energy harvester based on fluid excitation. The array type magnetic coupling energy harvester is used for a power generation device for directlycollecting water energy. The energy harvester is composed of a fixing shaft, piezoelectric vibrators, a rectangular magnet, a shell, a shell end cover, a PVC rope, a spherical floater and a strip-shaped magnet. The spherical floater is driven by a water flow to swing, and the strip-shaped magnet is driven to swing; and when the strip-shaped magnet is close to the shell, the strip-shaped magnet ismagnetically coupled with the rectangular magnet on the piezoelectric vibrators to cause deformation of the piezoelectric vibrators, and charges appear on the surfaces of the piezoelectric vibratorsdue to a direct piezoelectric effect. All the piezoelectric vibrators are connected in series, and the voltage generated by energy harvesting can reach the maximum within a short time.

Description

Technical field[0001]An array type magnetic coupling type energy harvester based on fluid excitation, in particular to a piezoelectric energy harvester that can collect water energy, belongs to the technical field of fluid flow induced vibration energy harvesting.Background technique[0002]The Yangtze River is the largest river in our country, and there have been many severe floods in the Yangtze River area. In recent years, the ecology has been severely damaged, the blind reclaiming of lakes and fields, and the negative ecological effects of unreasonable water conservancy construction on rivers cannot be ignored. In addition, due to the inadequate flood control facilities of small and medium rivers in many areas, or even the lack of any flood control facilities, the flood season may lead to dangers such as dykes bursting or overflowing, which directly threatens the lives and property safety of people along the banks. Therefore, river monitoring has been highly valued by relevant nat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/185H02N2/186
Inventor 何丽鹏余刚谷岩顾祥丰王仕诚姜帅贾玉博
Owner CHANGCHUN UNIV OF TECH