Combined type broadband vibration energy collector

A vibration energy harvesting, broadband technology, applied in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problems of low power density of devices and achieve high energy conversion Efficiency, Extended Operating Bandwidth, High Output Performance Effects

Active Publication Date: 2015-06-10
苏州远桥精密电子有限公司
View PDF8 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to expand the frequency bandwidth of the vibration energy harvester, Qin Lifeng from Xiamen University formed an array of cantilevers with different resonant frequ

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined type broadband vibration energy collector
  • Combined type broadband vibration energy collector
  • Combined type broadband vibration energy collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] Such as figure 1 As shown, it is one of the preferred embodiments of the present invention. The composite broadband vibration energy harvester includes a housing 1 , a piezoelectric beam 2 , a mass 3 , a coil 4 and a magnet 5 . One end of the piezoelectric beam 2 is fixed on the base 10 in the housing 1, and the other end vibrates freely (that is, the free end 20); two identical mass blocks 3 are installed on the upper and lower surfaces of the free end 20 to form piezoelectric vibration energy collector. Two identical coils 4 are ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a combined type broadband vibration energy collector. The combined type broadband vibration energy collector comprises a shell, a piezoelectric beam, two mass blocks, two coils and two magnets, wherein the piezoelectric beam, the mass blocks, the coils and the magnets are arranged in the shell; one end of the piezoelectric beam is horizontally fixed to the inner wall of the shell, and the other end of the piezoelectric beam is a free end; the two mass blocks are fixed to the upper surface and the lower surface of the free end of the piezoelectric beam respectively; the two coils are fixed to the two mass blocks respectively, and the axes of the coils are perpendicular to the upper surface and the lower surface of the piezoelectric beam; the two magnets are fixed to the inner wall of the shell, like poles are opposite, the magnets and the coils are coaxial, and a gap exists between each magnet and the corresponding coil. The combined type broadband vibration energy collector combines a piezoelectric type vibration energy collector with an electromagnetic type vibration energy collector, energy collection efficiency is improved, the magnets serve as stators installed on the shell, and the reliability of the combined type broadband vibration energy collector is improved; meanwhile, the amplitude of the coils is limited by the magnets, so that the broadband of a frequency band is expanded.

Description

technical field [0001] The invention relates to a vibration energy harvester, in particular to a broadband vibration energy harvester combining piezoelectric effect and electromagnetic effect. Background technique [0002] The vibration energy harvester can convert the vibration energy in the environment into electrical energy. It has the advantages of small size, high energy density, maintenance-free, green and environmental protection. It is not limited by the capacity of traditional chemical batteries and can realize unattended long-term power supply. , has a wide range of application requirements in environmental monitoring, building safety monitoring and other related fields. [0003] According to the energy conversion method, vibration energy harvesters can be divided into three types: piezoelectric, electromagnetic and electrostatic. The piezoelectric vibration energy harvester converts the vibration energy into the strain energy of the piezoelectric material, and th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02N2/18H02K35/04
Inventor 赵兴强严飞宋公飞
Owner 苏州远桥精密电子有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap