Rubber bearing structure based on piezoelectric effect and power generating system thereof

A rubber bearing, piezoelectric effect technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, battery circuit devices, generators/motors, etc., to improve power generation and power generation efficiency, large stress changes Amplitude, the effect of improving energy conversion efficiency

Active Publication Date: 2017-05-10
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In order to solve the problem of laying ceramic piezoelectric devices on bridges in a large area in the prior art, the present invention provides a rubber bearing structure based on the piezoelectric effect, which can obtain a larger amplitude with the vibration of the bridge , so as to give the

Method used

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  • Rubber bearing structure based on piezoelectric effect and power generating system thereof
  • Rubber bearing structure based on piezoelectric effect and power generating system thereof
  • Rubber bearing structure based on piezoelectric effect and power generating system thereof

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Embodiment

[0026] like figure 1 As shown in the figure, the rubber bearing structure based on the piezoelectric effect of the present invention includes a bottom rubber layer 11, the upper part of the bottom rubber layer 11 is provided with a stiffening plate 12, and the upper part of the stiffening plate 12 is provided with a number of parallel connected piezoelectric Sheet 13, the upper part of the piezoelectric sheet 13 is provided with a top rubber layer 14. The bottom rubber layer 11 and the top rubber layer 14 are both natural rubber.

[0027] The piezoelectric sheet 13 is pasted and fixed on the stiffening plate 12, and the adhesive can be selected from polyurethane glue, so that the bonding strength of the piezoelectric sheet 13 and the stiffening plate 12 is greater than 10Mpa, ensuring that the piezoelectric ceramic sheet and the stiffening plate 12. There is no cohesive failure between them. The coverage area of ​​the piezoelectric sheet 13 accounts for at least 4 / 5 of the a...

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Abstract

The invention relates to a rubber bearing structure based on the piezoelectric effect and a power generating system thereof; the rubber bearing structure comprises a bottom rubber layer; a reinforcing plate is arranged on the bottom rubber layer, and provided with a plurality of piezoelectric plates connected in parallel; a top rubber layer is arranged on the piezoelectric plates; the rubber bearing structure is arranged between a box girder and a pier of a bridge, and connected with a storage battery, thus powering up power devices on the bridge through a bridge power supply circuit. The rubber bearing structure can obtain large amplitudes along with bridge vibrations, thus giving large stress change amplitudes on the inner piezoelectric plates, ensuring piezoelectric plate deformation frequency level, improving power generating capacity and efficiency, and improving energy conversion efficiency; the power generating system is combined with the rubber bearing structure, so the installation and maintenance are easy; compared with large area installation and paving in the prior art, the rubber bearing structure and the power generating system are easy to construct, low in cost, and high in practical value.

Description

technical field [0001] The invention relates to the technical field of piezoelectric ceramic power generation and electric energy collection, in particular to a piezoelectric effect-based rubber bearing structure and a power generation system thereof. Background technique [0002] Studies have shown that when pressure or tension is applied to the ceramic sheet, charges with opposite polarities will be generated at both ends of the ceramic sheet, and a current will be formed through the loop. This effect is called the piezoelectric effect. Ceramics with this property are called piezoelectric ceramics, and the density of surface charges is proportional to the mechanical stress. Using this characteristic of piezoelectric ceramics, people have developed a variety of devices that convert mechanical properties into electrical energy: [0003] (1) Walking piezoelectric power generation [0004] People waste some mechanical properties in the process of exercising, so there are man...

Claims

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Application Information

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IPC IPC(8): H02N2/18H02J7/32
CPCH02J7/32H02N2/186
Inventor 黄永辉肖阳刘爱荣朱创坚
Owner GUANGZHOU UNIVERSITY
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