Vibration and temperature difference composite piezoelectric self-generating battery

A composite, piezoelectric technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, battery circuit device, etc., can solve problems such as single

Active Publication Date: 2017-08-22
JILIN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that current piezoelectric energy harvesting devices using vibration can only generate electricity using vibration in a single environment, a vibration and temperature difference composite piezoelectric self-generating battery is proposed.

Method used

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  • Vibration and temperature difference composite piezoelectric self-generating battery
  • Vibration and temperature difference composite piezoelectric self-generating battery
  • Vibration and temperature difference composite piezoelectric self-generating battery

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Embodiment Construction

[0011] refer to figure 1 , figure 2 with image 3 , a vibration, temperature difference composite piezoelectric self-generating battery of the present invention comprises: battery top cover (1), battery casing (2), cooling box (3), heat conduction rod (4), piezoelectric cantilever beam (5), It is characterized in that it also includes a heat-absorbing base (6) and a disc-shaped thermal bimetal (7), wherein: the battery top cover (1) is a disc-shaped member, and an electrode is arranged in the center of the disc; the battery case (2) is a cylindrical member with a bottom, and an electrode is arranged in the middle of the outer surface of the bottom of the cylinder; the lower surface of the battery top cover (1) and the upper surface of the battery case (2) are welded to form a battery closed and sealed cavity; the cooling The box (3) is a ring-shaped shell, which is hollow and filled with cooling liquid inside; the upper surface of the cooling box (3) is bonded to the lower ...

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Abstract

The invention relates to a vibration and temperature difference composite piezoelectric self-generating battery. The battery comprises a battery top cover, a battery shell, a cooling box, a heat-conducting rod, piezoelectric cantilever beams, a heat absorption base, and a dish-shaped thermal bimetallic strip, the battery top cover and the battery shell form a battery closed sealing cavity, the heat absorption base absorbs environment heat, the heat-conducting rod, the piezoelectric cantilever beams, and the dish-shaped thermal bimetallic strip form a piezoelectric generating unit, and the cooling box is a rapid cooling apparatus. When a micro-electromechanical system equipped with the battery is heated, the heat-conducting rod moves up and down with the reciprocating deformation of the dish-shaped thermal bimetallic strip, and the piezoelectric generating unit generates electricity; when the micro-electromechanical system equipped with the battery is vibrated, the piezoelectric cantilever beams move in a reciprocating manner; and when the battery is applied to the micro-electromechanical system, the power supply requirement of the micro-electromechanical system can be satisfied, and the battery is advantaged by simple structure, high environment adaptability, high energy-harvesting efficiency, and easy integration.

Description

technical field [0001] The invention belongs to the field of piezoelectric power generation, in particular to a vibration and temperature difference composite piezoelectric self-generating battery. Background technique [0002] In recent years, with the application of micro-electro-mechanical devices (MEMS) in wireless sensor network nodes, military weapons, aerospace, medical and other fields, the power supply of micro-electro-mechanical devices has attracted widespread attention. Traditional chemical batteries have problems such as limited battery life, difficulty in integration, poor environmental adaptability, and pollution. Traditional line power supply cannot be applied to micro-electromechanical devices in specific occasions. Therefore, more and more attention has been paid to self-powered equipment, and equipment using solar power, electromagnetic power, temperature difference power, vibration power, and wind power has emerged in an endless stream, but each has its o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02N11/00H02J7/32
CPCH02J7/32H02N2/186H02N11/002Y02E60/10
Inventor 吴越刘清华杨鲁义韦东东杨志刚孙晓东
Owner JILIN UNIV
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