Multistable vibration energy capture structure

A vibration energy, multi-stable technology, applied in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problems of difficult multi-stable effects and difficult realization, Achieve the effect of improving energy capture efficiency and easy to achieve

Active Publication Date: 2019-09-03
NORTHWESTERN POLYTECHNICAL UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multi-stable effect of the existing multi-stable energy-harvesting structures is not easy to realize and difficult to adjust, and there are problems in practical applications

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
  • Multistable vibration energy capture structure
  • Multistable vibration energy capture structure
  • Multistable vibration energy capture structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, this embodiment provides a multi-stable vibration energy capture structure, including a support 1, the top and bottom of the support 1 are respectively equipped with a splint and a chute 2; wherein, the splint includes a left splint 3 and a right splint 4, the left splint Between the clamping plate 3 and the right clamping plate 4, a cantilever beam 5 is fixed by bolts, and the end of the cantilever beam 5 is connected with an end permanent magnet 6; the side of the chute 2 is provided with an elongated hole, and 3 magnet containers 7 are installed in the chute 2, Bottom permanent magnet 8, stud stud 10 and direction adjustment screw 9 are installed in the magnet container 7. The support 1 is made of aluminum alloy, the cantilever beam 5 is made of stainless steel, the end permanent magnet 6 is a NdFeB magnet, and the splint is installed on the support by bolts. There are two holes on the cantilever beam 5, which are connected to the splint t...

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 multistable vibration energy capture structure. The multistable vibration energy capture structure comprises a support, wherein a clamping plate and a chute are respectivelyarranged at the upper portion and the bottom portion of the support; the clamping plate comprises a left clamping plate and a right clamping plate, a cantilever beam is fixed between the left clampingplate and the right clamping plate through bolts, and the end portion of the cantilever beam is connected with an end permanent magnet; and the side of the chute is provided with an elongated hole, the chute is internally provided with a magnet container, and bottom permanent magnets are installed in the magnet container. According to the invention, the plurality of bottom permanent magnets are installed in the chute, the multistable effect is achieved by introducing the nonlinear magnetic force, under the external excitation action, the cantilever beam is vibrated, and in the vibration process of the cantilever beam, based on the positive piezoelectric effect, the vibration energy is converted to electric energy. The multistable vibration energy capture structure is easy to achieve and regulate the multistable structure, and can effectively improve the energy capture efficiency and widen the working frequency band of the energy capture device.

Description

technical field [0001] The invention belongs to the technical field of energy capture, and in particular relates to a multi-stable vibration energy capture structure. Background technique [0002] With the development of modern electronic technology, low-energy microsensors and microelectromechanical systems are widely used in various aspects of social life such as wireless sensor networks, environmental monitoring, Internet of Things, and structural health monitoring. At present, such tiny electronic devices are mainly powered by traditional chemical batteries, but traditional chemical batteries have the disadvantages of short life, pollution to the environment and high cost of regular replacement. [0003] Green and low-carbon environmental protection has become an inevitable trend of future social development, and renewable energy has been highly valued by the state and society. Energy capture technology is to convert various forms of energy in the environment, such as l...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 周生喜王锁
Owner NORTHWESTERN POLYTECHNICAL UNIV
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