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
CN105089918AInactive Publication Date: 2015-11-25710TH RES INST OF CHINA SHIPBUILDING IND CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
710TH RES INST OF CHINA SHIPBUILDING IND CORP
Publication Date
2015-11-25
Estimated Expiration
Not applicable · inactive patent

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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.
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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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