Piezoelectric static composite-type low-frequency vibration energy collector

An energy harvester and low-frequency vibration technology, which is applied in the direction of generator/motor, electrostatic generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problem of high natural frequency and low output power, etc. problems, to achieve the effect of easy production, high output power, and reduced volume

Inactive Publication Date: 2014-09-24
SHANGHAI JIAO TONG UNIV
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a piezoelectric electrostatic composite low-frequency vibration energy harvester based on PVDF (polyvinylidene fluoride) mate

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
  • Piezoelectric static composite-type low-frequency vibration energy collector
  • Piezoelectric static composite-type low-frequency vibration energy collector
  • Piezoelectric static composite-type low-frequency vibration energy collector

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, a number of modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0022] Such as figure 1 As shown, this embodiment includes: a mass block 1, a PVDF film 2, a flexible variable capacitor 3, and a silicon substrate 4. The mass 1 is arranged above the PVDF film 2, the PVDF film 2 is attached to the upper side of the flexible variable capacitor 3, and the lower part of the flexible variable capacitor 3 is fixed on the flat silicon substrate 4.

[0023] Such as figure 2 As shown, the flexible variable capacitor 3 of this embodiment includes: ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a piezoelectric static composite-type low-frequency vibration energy collector which comprises a mass block, a PVDF film, a flexible variable capacitor and a silicon substrate. The flexible variable capacitor comprises a PDMS flexible cavity, a PDMS carbon nano tube upper electrode and a PDMS carbon nano tube lower electrode, the PDMS carbon nano tube upper electrode and the PDMS carbon nano tube lower electrode are located on the upper surface and the lower surface of the cavity respectively. The PVDF film is arranged on the PDMS carbon nano tube upper electrode of the flexible variable capacitor, and the PDMS carbon nano tube lower electrode of the flexible variable capacitor is fixed to the silicon substrate. The mass block is used for reducing work frequency of a device. According to the energy collector, an MEMS transducer can obtain large output power and high energy conversion efficiency in a low-frequency vibration environment; the energy collector is simple in structure, easy to manufacture, small in size and capable of operating in the low-frequency environment and has high energy conversion efficiency in an environment vibration range.

Description

technical field [0001] The present invention relates to a device in the field of energy technology, in particular to a piezoelectric-static composite low-frequency vibration energy harvester. Background technique [0002] In recent years, with the continuous development of MEMS (Micro-Electro-Mechanical Systems) technology, the application range of micro-systems such as micro-sensors and micro-electronic devices has continued to expand, and has been widely used in medicine, military affairs, and the Internet of Things. and other fields. Since these devices are portable, the performance and quality of their power supply is critical for most current MEMS technology applications. The traditional electrochemical battery power supply method has the disadvantages of short life, limited energy storage, and the need for regular replacement, so it cannot provide a good power solution. Therefore, people intend to use environmental vibration energy harvesting technology to solve the ...

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): H02N2/18H02N1/00
Inventor 杨斌朱雁博刘景全陈翔杨春生
Owner SHANGHAI JIAO TONG 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