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Wave power generation device based on piezoelectric element

A piezoelectric element and power generation device technology, which is applied in ocean energy power generation, engine components, machines/engines, etc., can solve problems such as insufficient stability and safety, affecting power conversion efficiency, and mechanical movement resistance, so as to avoid poor stability , Avoid shaking, improve conversion efficiency

Inactive Publication Date: 2015-11-25
710TH RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology

In addition, this paper proposes that the inner and outer walls of the top sleeve are rigidly connected by cross bars and truss members. Although the structure is not easily deformed, it produces resistance to mechanical movement and affects the efficiency of electrical energy conversion.
In addition, the power generation device proposed in this paper is located above the sea surface, which has insufficient stability and safety.

Method used

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  • Wave power generation device based on piezoelectric element
  • Wave power generation device based on piezoelectric element
  • Wave power generation device based on piezoelectric element

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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The present invention provides a wave energy power generation device based on piezoelectric elements. The design idea of ​​the device is that, driven by wave energy, the four supporting floating bodies and the wave collection floating body of the power generating device will be impacted by ocean waves, resulting in The up and down movement is transformed into the relative movement of the inner and outer sleeves, so that the magnets in the inner and outer sleeves generate magnetic force, which acts on the piezoelectric material to deform and generate electricity.

[0022] 1. In order to ensure that the power generating device has good stability and safety during use, the present invention installs the parts of the power generating device, that is, the outer sleeve and the inner sleeve, under the wave collection floating body. In this way, the Part of...

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Abstract

The invention discloses a wave power generation device based on a piezoelectric element. Inner and outer sleeves are mounted below wave acquisition floating bodies, so that one parts thereof are below the sea surface to prevent the problem of weak stability caused by such external factors as sea breeze. A limiting device is adopted to replace a rigid connecting mode between a cross bar and a truss rod piece in the prior art to realize the fixation of the inner and outer sleeves, so that the shaking of the inner and outer sleeves due to seawater impact is prevented. In addition, wave power acquisition devices all generate resonance through the design of the masses of the wave power acquisition floating bodies and the elastic coefficients of springs, so that the wave power conversion efficiency is improved.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of ocean energy, in particular to a wave energy generating device based on piezoelectric elements. Background technique [0002] Piezoelectric wave energy generators can directly convert wave energy into electrical energy through the deformation of piezoelectric materials, which is more reliable and efficient than mechanical and hydraulic types. [0003] The use of piezoelectric elements for wave power generation has been reported at home and abroad, for example, in the article "Progress in Ocean Wave Piezoelectric Power Generation Technology" in the Proceedings of the Third Symposium of the Ocean Energy Professional Committee of the Chinese Renewable Energy Society in 2011 A conversion device that converts tensile strain of piezoelectric materials into electrical energy is introduced. Such as figure 1 As shown, a transmission shaft and four guide columns are fixed on the floating body i...

Claims

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Application Information

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IPC IPC(8): F03B13/20
CPCY02E10/30
Inventor 张维谢国庆尚玲邵华枫宋俊才田丽虹黎静
Owner 710TH RES INST OF CHINA SHIPBUILDING IND CORP
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