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Superimposed column type bituminous pavement energy harvesting device

A technology for energy harvesting and asphalt pavement, which is applied in the direction of electric energy storage systems, electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve the problems of road energy harvesting, low energy conversion efficiency, Problems such as small energy transmission coefficient, to achieve good deformation synergy, high energy conversion efficiency, and small difference in stiffness change

Active Publication Date: 2014-07-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, through related research, it has been found that the existing piezoelectric transducers either have inappropriate stiffness, low energy conversion efficiency, or small energy transfer coefficient, and cannot simultaneously meet the requirements of road energy harvesting.

Method used

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  • Superimposed column type bituminous pavement energy harvesting device
  • Superimposed column type bituminous pavement energy harvesting device
  • Superimposed column type bituminous pavement energy harvesting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 Shown is a stacked column type asphalt pavement energy harvesting device, the upper surface top plate 1 and the lower surface top plate 8 are circular with a radius of 11 cm and a thickness of 5 mm. The size of the encapsulation layer 2 is a cylinder with a base radius of 11 cm and a height of 1.6 cm filled with asphalt sand. Between the top plate 1 on the upper surface and the top plate 8 on the lower surface, 21 piezoelectric ceramic column units 3 are densely arranged, wherein the piezoelectric ceramic column unit 3 is formed by stacking three piezoelectric ceramic column bodies 4, and the piezoelectric ceramic column units 3 and A metal sheet 5 is directly provided on the surface top plate, and a metal sheet 5 is provided between each piezoelectric ceramic column body 4 . The piezoelectric ceramic column body 4 , the top plate 1 on the upper surface and the top plate 8 on the lower surface are all bonded by the adhesive layer 6 . The bonding layer...

Embodiment 2

[0046] Such as figure 1 Shown is a stacked column type asphalt pavement energy harvesting device (except that the piezoelectric ceramic column unit 3 is composed of four piezoelectric ceramic column bodies 4, and the other structures are the same as figure 1 same), the top plate 1 on the upper surface and the top plate 8 on the lower surface are circular with a radius of 15 cm and a thickness of 10 mm. The size of the encapsulation layer 2 is a cylinder with a base radius of 15 cm, a height of 8 cm and filled with asphalt sand. Fifteen piezoelectric ceramic column units 3 are densely arranged between the upper surface top plate 1 and the lower surface top plate 8, wherein the piezoelectric ceramic column unit 3 is formed by stacking four piezoelectric ceramic column bodies 4, and the piezoelectric ceramic column units 3 and A metal sheet 5 is directly provided on the surface top plate, and a metal sheet 5 is provided between each piezoelectric ceramic column body 4 . The pie...

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Abstract

The invention relates to the field of new energy harvesting and converting equipment, in particular to a superimposed column type bituminous pavement energy harvesting device applied to a bituminous concrete pavement and the application of the superimposed column type bituminous pavement energy harvesting device. The superimposed column type bituminous pavement energy harvesting device applied to the bituminous concrete pavement comprises an upper surface top plate and a lower surface top plate, wherein the upper surface top plate and the lower surface top plate are horizontally arranged, a packaging layer is arranged between the upper surface top plate and the lower surface top plate, one or more vertical piezoelectric ceramic column units are arranged in the packaging layer, the top portions of the piezoelectric ceramic column units are connected with the upper surface top plate through metal sheets, the bottom portions of the piezoelectric ceramic column units are connected with the lower surface top plates through metal sheets, each piezoelectric ceramic column unit comprises a plurality of piezoelectric ceramic column bodies, and metal sheets are arranged between the piezoelectric ceramic column bodies. The superimposed column type bituminous pavement energy harvesting device combines road engineering with energy harvesting, and is good in bituminous pavement cooperativity and high in energy conversion efficiency.

Description

technical field [0001] The invention relates to the field of new energy collection and conversion equipment, in particular to a column-stacked asphalt pavement energy collection device suitable for asphalt concrete pavement and its application. Background technique [0002] The global primary energy is dominated by petrochemical energy, which is predictably depleted, and there is an urgent need to accelerate the development of renewable energy. As a new type of renewable green energy, the energy contained in asphalt concrete pavement has received extensive attention in recent years. Under the action of traffic load, the asphalt concrete pavement will produce structural responses such as stress, strain, deformation and vibration, thereby generating mechanical energy. Taking a vehicle traveling at a speed of 60km / h as an example, the mechanical energy generated by a standard axle load passing at a depth of 40mm on the road surface is about 0.644J. my country's asphalt paveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02J15/00
Inventor 赵鸿铎杨戈凌建明陶宇杰覃路遥
Owner TONGJI UNIV
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