Circular plate type vibration energy collector based on MFC

A vibration energy harvesting, circular plate technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. , the collector is easy to crack, etc., to achieve the effect of high electromechanical conversion efficiency, convenient application and low rigidity

Pending Publication Date: 2022-03-25
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, because the piezoelectric ceramic sheet is very brittle and easy to weather, it is easy to crack during the working process of the collector, which affects the normal operation of the collector
In addition, in order to avoid being short-circuited, M2 non-metallic screws are used to fix the inverted conical mass block, which is not strong enough and easy to break

Method used

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  • Circular plate type vibration energy collector based on MFC
  • Circular plate type vibration energy collector based on MFC

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Embodiment

[0027] The invention relates to an MFC-based disc type vibration energy collector, which mainly adopts a piezoelectric conversion method to convert vibrational mechanical energy into electric energy for output. Piezoelectric conversion has the advantages of simple structure, high power density and high output voltage. Therefore, it is a better way to use piezoelectric effect to harvest vibration energy.

[0028] Specifically, such as figure 1 , figure 2 As shown, the disc type vibration energy harvester based on the piezoelectric ceramic fiber sheet MFC (Macro FiberComposite) of the present invention comprises a laminated disc, a pressure ring 5, a base 8, an upper central mass 3, a lower central mass 7 and a guide Column 1. The base 8 is a disc-shaped base, and the central position of the disc-shaped base is provided with a downwardly recessed cylindrical groove, and the guide post 1 is vertically fixed on the top of the central position of the groove of the base 8, and th...

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PUM

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Abstract

The invention relates to a circular plate type vibration energy collector based on an MFC. The circular plate type vibration energy collector comprises a base (8), a guide column (1) fixed to the base (8), an upper center mass block (3), a lower center mass block (7) and a laminated circular plate, wherein the upper center mass block (3) and the lower center mass block (7) are connected with the guide column (1) and are symmetrically arranged up and down, and the laminated circular plate is arranged between the upper center mass block (3) and the lower center mass block (7). The laminated circular plate comprises an upper circular MFC (4), a lower circular MFC (4) and a brass substrate (6), wherein the upper circular MFC (4) and the lower circular MFC (4) have the same structural size, and the brass substrate (6) is arranged between the two MFCs (4). Compared with the prior art, the invention has the advantages of effectively broadening the response frequency band of the collector, reducing friction generated during vibration, being stable in collection and the like.

Description

technical field [0001] The invention relates to the technical field of vibration energy recovery, in particular to an MFC-based circular plate vibration energy harvester. Background technique [0002] At present, the energy problem is one of the most concerned issues in the world. The energy problem mainly includes the shortage of non-renewable resources, the pollution generated in the use of non-renewable resources, the utilization of renewable resources, etc. Many scientists and scholars in the world have been committed to finding and Develop new energy sources to replace traditional energy sources that are currently widely used. In the environment, potentially available resources mainly include solar energy, wind energy, vibration energy, and noise energy. Among them, vibration is almost ubiquitous, has a high energy density, and is not easily affected by the natural environment. Its power generation can meet the needs of many devices at present, so it is meaningful to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 袁天辰代迪杨俭宋瑞刚
Owner SHANGHAI UNIV OF ENG SCI
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