Unlock instant, AI-driven research and patent intelligence for your innovation.

Energy collector based on heliciform shape

An energy harvester and helical technology, applied in the field of MEMS integrated processing, can solve the problems of wasting vibration energy, difficult to deform, poor toughness, etc., and achieve the effects of increasing effective length, easy vibration, and improving toughness

Inactive Publication Date: 2018-09-21
FOSHAN SHUNDE SUN YAT SEN UNIV RES INST +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional piezoelectric energy harvesters have poor material toughness, low sensitivity to external vibrations, and are not easily deformed. The effective length of the device is short, resulting in low energy conversion efficiency, single operating frequency, and narrow frequency band, wasting energy outside the operating frequency. vibration energy

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
  • Energy collector based on heliciform shape
  • Energy collector based on heliciform shape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] refer to Figure 1-Figure 2 , a spiral-based energy harvester of the present invention is divided into a three-layer structure, from top to bottom are the first flexible circuit board 2, the piezoelectric sheet 1, the second flexible circuit board 3, the first flexible circuit board 2 and the second flexible circuit board 3 clamp the piezoelectric sheet 1 in the middle, one end of the piezoelectric sheet 1 is a fixed end 11, and one end of the first flexible circuit board 2 and the second flexible circuit board 3 are used for fixing, The other end of the piezoelectric sheet 1 protrudes to the outside of the first flexible circuit board 2 and the second flexible circuit board 3, and the protruding part is the vibrating end 12, and a mass block 4 is arranged on the vibrating end 12. When the external environment When there is vibration, the mass block 4 located at the vibrating end 12 will also vibrate accordingly and drive the piezoelectric sheet 1 to vibrate, so that th...

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 present invention discloses an energy collector based on a heliciform shape. The collector comprises a piezoelectric plate, a first flexible circuit board, a second flexible circuit board and a mass block. The first flexible circuit board and the second flexible circuit board are configured to press the piezoelectric plate at the middle portion, the piezoelectric plate is provided with a spiral area, and the tail end of the piezoelectric plate is provided with the mass block. The energy collector manufactured through this structure is good in flexibility, can generate large bending deformation and is sensitive for external vibration, the piezoelectric plate provided with the spiral area is long the effective length, is easier for vibration and reduces the inherent frequency of the energy collector itself, and the design of the mass block reduces the inherent frequency of the energy collector.

Description

technical field [0001] The invention relates to the field of integrated processing of micro-electro-mechanical systems, in particular to a spiral-based energy harvester. Background technique [0002] With the development of micro-electro-mechanical systems, wearable electronic devices and integrated circuits, human beings have higher and higher requirements for the integration of products. How to supply power for low-power devices has become a hot topic. Usually, micro-electro-mechanical systems are The use of chemical batteries for power supply has many disadvantages, such as large size, short life, and environmental pollution. It takes a lot of manpower and material resources to replace chemical batteries. Therefore, it is necessary to find a sustainable power supply technology to replace chemical battery power supply. [0003] At present, the commonly used methods are to convert the vibration energy in the environment into electrical energy, generally including electromag...

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 何雨晴叶涛朱京希
Owner FOSHAN SHUNDE SUN YAT SEN UNIV RES INST