Minitype electromagnetic broadband vibration energy collector

A vibration energy collection, electromagnetic technology, applied in the direction of electrical components, electromechanical devices, etc., can solve the problem of large device size, achieve the effect of large induced electromotive force and low process requirements
CN101860169BInactive Publication Date: 2012-11-21SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Publication Date
2012-11-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a minitype electromagnetic broadband vibration energy collector, which belongs to the technical field of micro electromechanical systems. The minitype electromagnetic broadband vibration energy collector comprises an insulating substrate, a planar spiral induction coil, a vibration pick-up structure and a support structure, wherein the insulating substrate, the planar spiral induction coil and the vibration pick-up structure are orderly arranged from the right lower part to the upper part; and the support structure is positioned on the outer side of the planar spiral induction coil and the vibration pick-up structure and fixedly connected with the insulating substrate. The invention collects broadband energy by superposing vibration modes of a plurality of circular permanent magnets connected by springs, and realizes integrated manufacturing of permanent magnets by a microstructure graphical method. Since the graphical permanent magnet can have a thick microstructure, the graphical permanent magnet has higher energy collection and conversion efficiency compared with the electroplated permanent magnet. The invention is compatible with IC technique, and is easy to realize mass production.
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Description

technical field

[0001] The invention relates to a device in the field of micro-electromechanical systems, in particular to a miniature electromagnetic broadband vibration energy collector. Background technique

[0002] As the wireless sensor network system gradually enters people's field of vision, it has broad application prospects in the fields of biomedicine, industry, construction, consumer electronics and national defense. However, as the size of wireless sensing products and MEMS devices continues to decrease, the power supply problem has become a major obstacle to their development and application. At present, people mainly rely on disposable batteries with high energy density. Although the energy storage density and service life of batteries are continuously improved, their defects are self-evident: large volume, high quality, limited life, and need to be replaced constantly. The service life of wireless sensor networks is often long, the nodes are widely distribute...

Claims

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