Energy acquisition device based on piezoelectric and magnetoelectric composite structure

A technology of magnetoelectric compounding and energy harvesting, applied in electromechanical devices, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc. Energy conversion efficiency, improving wind energy utilization, and realizing the effect of energy harvesting

Active Publication Date: 2019-04-12
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Piezoelectric materials are an important part of piezoelectric energy harvesting devices. Different piezoelectric materials have a...

Method used

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  • Energy acquisition device based on piezoelectric and magnetoelectric composite structure
  • Energy acquisition device based on piezoelectric and magnetoelectric composite structure
  • Energy acquisition device based on piezoelectric and magnetoelectric composite structure

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0032] like Figure 5 As shown, the present invention discloses an energy harvesting device based on a piezoelectric and magnetoelectric composite structure, which includes a housing, first to fourth piezoelectric cantilever beams, a magnetoelectric composite module, a first striking gear, a second striking Beat gear, rotating shaft, first fan, second fan, first bearing, second bearing and fixed rod.

[0033] like figure 1 As shown, the first to fourth piezoelectric cantilever beams all include a fixed seat and an elastic substrate; the elastic substrate includes a striking part and a deformation part, wherein one end of the deforming part is vertically fixed to the fixed seat, and the other end is connected to one end of the striking part The two sides of the deformation part are provided with a piezoelectric film; the striking part is used to d...

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Abstract

The invention discloses an energy acquisition device based on a piezoelectric and magnetoelectric composite structure. The energy acquisition device comprises a shell, a first piezoelectric cantileverbeam, a second piezoelectric cantilever beam, a third piezoelectric cantilever beam, a fourth piezoelectric cantilever beam, a magnetoelectric composite module, a first hit gear, a second hit gear, arotating shaft, a first fan, a second fan, a first bearing, a second bearing and a fixing rod. According to the energy acquisition device, by means of characteristic study on a piezoelectric materialand a magnetostrictive material, a piezoelectric effect of the piezoelectric material and a magnetoelectric effect of the magnetostrictive material are fully combined, conversion of mechanical energyto electric energy and energy conversion of magnetic energy to electric energy can be achieved simultaneously, and the energy acquisition and conversion efficiency is effectively improved.

Description

technical field [0001] The invention relates to the technical fields of micro-electromechanical systems and micro-energy sources, in particular to an energy harvesting device based on piezoelectric and magnetoelectric composite structures. Background technique [0002] In recent years, the fossil energy crisis and environmental pollution have become increasingly prominent. Energy issues have always been one of the hottest issues in the world. In today's increasingly scarce energy, how to use renewable resources is particularly important. widespread attention. With the rapid advancement of my country's and the world's new energy strategy, in the future energy system and energy network, the renewable energy power generation system will become the main energy production method. [0003] Vibration energy is a kind of energy ubiquitous in nature, and it is a renewable energy source. Therefore, how to design a vibration energy harvesting device to achieve efficient collection of...

Claims

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Application Information

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IPC IPC(8): H02N2/18H02K35/02
CPCH02K35/02H02N2/186Y02E10/72
Inventor 周勇梁鑫朱廷玉
Owner NANJING UNIV OF INFORMATION SCI & TECH
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