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

Multi-directional micro-miniature piezoelectric wind energy collector

A micro-miniature, multi-directional technology, applied in current collectors, wind power generation, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve the problems of large differences in wind energy collection efficiency and unstable output, and achieve Efficient collection and good wind direction adaptability

Pending Publication Date: 2021-11-19
CHONGQING UNIV
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing miniature piezoelectric wind energy collectors have great differences in the collection efficiency of wind energy in different directions, resulting in unstable output in environments with changing wind directions

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
  • Multi-directional micro-miniature piezoelectric wind energy collector
  • Multi-directional micro-miniature piezoelectric wind energy collector
  • Multi-directional micro-miniature piezoelectric wind energy collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] A multi-wind direction micro-miniature piezoelectric wind energy collector, such as figure 1 As shown, it consists of a base 1 , a column 2 , a limiting plate 3 , a bluff body 4 and a piezoelectric composite beam 5 . The bluff body 4 is a hollow thin-walled rigid shell with a circular hole at the bottom, one end of the column 2 is fixed on the base 1, and the other end of the column 2 is inserted into the cavity inside the bluff body 4 through the circular hole, The limiting plate 3 is fixed on the column 2 , one end of the piezoelectric composite beam 5 is fixed on the inner wall of the bluff body 4 , and the other end is fixed on the column 2 inside the bluff body 4 .

[0024] like figure 2 As shown, the piezoelectric composite beam 5 is an electromechanical conversion component, and its shape can be a straight beam, a curved beam, ...

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 multi-directional micro-miniature piezoelectric wind energy collector which is composed of a base, a stand column, a limiting plate, a piezoelectric composite beam and a bluff body. The bluff body is a hollow thin-wall rigid shell with a round hole in the bottom. One end of the stand column is fixed to the base, and the other end of the stand column is inserted into the cavity in the bluff body through the round hole. The limiting plate is fixed to the stand column. One end of the piezoelectric composite beam is fixed to the inner wall of the bluff body, and the other end of the piezoelectric composite beam is fixed to the stand column located in the bluff body. The corrosion-resistant and waterproof bluff body can protect the piezoelectric composite beam in the bluff body. Under the action of wind, the bluff body generates wind-induced vibration on the stand column, so that the piezoelectric composite beam deforms, and an alternating potential difference is generated between the upper surface and the lower surface of the piezoelectric layer of the piezoelectric composite beam. The micro-miniature piezoelectric wind energy collector has the advantages of being good in wind direction adaptability and good in field work stability, and has wide application prospects in the field of wireless sensing.

Description

technical field [0001] The invention belongs to the field of renewable energy and wireless sensor networks, and particularly relates to a micro-miniature device for converting wind energy into electrical energy by utilizing the phenomenon of wind-induced vibration. Background technique [0002] Micro-miniature wind power generation devices that convert wind energy into electrical energy have the advantages of long working life, maintenance-free, and pollution-free, and can be used to replace batteries to power wireless sensor nodes. In recent years, they have received extensive attention at home and abroad. Micro-miniature wind power generation devices are also called micro-miniature wind energy harvesters. Micro-miniature wind energy harvesters based on wind-induced vibration use the phenomenon of wind-induced vibration to convert wind energy into vibration energy of micro-structures, and further utilize piezoelectric effect, electrostatic induction, electromagnetic inductio...

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): H02N2/18F03D9/25H02J7/32
CPCH02N2/185F03D9/25H02J7/32Y02E10/72
Inventor 贺学锋李佳杰李深冯志强杨晓康叶一舟
Owner CHONGQING UNIV