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A tunnel airflow-induced vibration energy harvester

A technology of energy harvester and airflow, which is applied to electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc., which can solve the difficulty of cable follow-up maintenance, limited battery life, and the use of Inconvenience and other problems, to achieve the effect of improving power generation and power supply capacity, simple structure, and high reliability

Active Publication Date: 2019-03-15
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the traditional cable is used for power supply, the cable laying and subsequent maintenance are more difficult and costly; if the battery is used for power supply, due to the limited life of the battery, it needs to be replaced frequently, which is extremely inconvenient to use, especially in remote mountainous areas

Method used

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  • A tunnel airflow-induced vibration energy harvester
  • A tunnel airflow-induced vibration energy harvester
  • A tunnel airflow-induced vibration energy harvester

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The housing a is a square tube composed of the top wall a1, the bottom wall a2, the front wall a3 and the rear wall a4. The left side of the housing a is provided with a beam a5 and two windshields a6. The right side of the housing a The upper beam a7 and the lower beam a8 are arranged inside the side, and the two ends of the cross beam a5, the windshield a6, the upper beam a7 and the lower beam a8 are respectively fixed on the front wall a3 and the rear wall a4; The left side of the rear wall a4 is equipped with two left limit blocks b through screws, and the right side is equipped with two right limit blocks c through screws; the left limit block b placed on the front wall a3 and the rear wall a4 and the right limit block c are respectively symmetrically arranged on the upper and lower sides of the center line of the beam a5; the upper and lower sides of the beam a5 are installed with the left vibrator e through the pressure plate d and the screw, and the left inertial...

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Abstract

The invention relates to a tunnel air-flow vibration energy harvester, and belongs to the new energy field. The tunnel air-flow vibration energy harvester is characterized in that one crossbeam and two wind shields are arranged at the left side of a square tube type housing; an upper beam and a lower beam are arranged at the right side of the square tube type housing; two left stop blocks are arranged at the left side of the front and back walls of housing; two right stop blocks are arranged at the right side of the front and back walls of the housing; the upper and lower sides of the crossbeam are each provided with a left oscillator; a left inertia block is arranged at the end portion of each left oscillator; the upper and lower beams are each provided with a right oscillator; a right inertia block and a ribbon are arranged at the end portion of each right oscillator; the left and right oscillators are cantilever beams which are formed through bonding of substrates with the same thickness and piezoelectric patches; the substrates of the left oscillators are arranged in a manner of approaching the crossbeam; the piezoelectric patches of the right oscillators are arranged in a manner of approaching the upper beam or the lower beam; the left oscillators are inclined to the right side of the housing; the right oscillators are inclined to the left side of the housing; when the free ends of the left oscillators abut against the left stop blocks, the deflection of the left oscillators are smaller than the allowable values of the left oscillators; when the free ends of the right oscillators abut against the right stop blocks, the deflection of the right oscillators are smaller than the allowable values of the right oscillators; and the included angle between the connection line between the free end point and the fixed end point of each left oscillator and the wind direction is 15DEG to 45DEG.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a tunnel airflow-induced vibration energy harvester. Background technique [0002] Tunnels have become an important part of the current road and rail network. In order to ensure that cars and trains can travel together normally and safely, and realize real-time monitoring of the tunnel environment and passing vehicles, various instruments and lighting facilities need to be installed in the tunnel, so there must also be corresponding power supply facilities in the tunnel. If the traditional cable is used for power supply, the cable laying and subsequent maintenance are more difficult and costly; if the battery is used for power supply, due to the limited life of the battery, it needs to be replaced frequently, which is extremely inconvenient to use, especially in remote mountainous areas. Contents of the invention [0003] The present invention proposes a tunnel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/185H02N2/186
Inventor 阚君武唐红艳张可
Owner ZHEJIANG NORMAL UNIVERSITY
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