Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Device for collecting piezoelectric vibration energy in multiple directions

An energy harvesting, multi-directional technology, applied in piezoelectric/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., to improve the efficiency of energy harvesting

Pending Publication Date: 2021-10-26
SHANDONG UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no piezoelectric energy harvesting device that can well complete multi-directional

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
  • Device for collecting piezoelectric vibration energy in multiple directions
  • Device for collecting piezoelectric vibration energy in multiple directions
  • Device for collecting piezoelectric vibration energy in multiple directions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The invention provides a device for collecting multi-directional piezoelectric vibration energy, which is particularly suitable for a piezoelectric vibration energy collecting device that can be placed under the condition of multi-directional vibration, for example, at the bottom of a flagpole, due to the effect of wind on the flagpole There will be vibration in multiple directions. Installing this device at the bottom can collect the vibration energy of the flagpole. The specific plan is as follows:

[0018] A multi-directional piezoelectric energy collection device includes a support block 1, a spring steel plate 2, piezoelectric ceramics 3, a spring 4, and a connecting block 5.

[0019] refer to figure 1 , figure 2 , Support blocks, connection blocks, springs, spring steel plates, piezoelectric ceramics. The piezoelectric ceramics and the spring are installed on the spring steel plate, and the spring steel plate is further installed on the support block. In the n...

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 provides a device for collecting piezoelectric vibration energy in multiple directions. The device comprises a supporting block, a connecting block, a spring, a spring steel plate and piezoelectric ceramics. The piezoelectric ceramic and the spring are installed on the spring steel plate, and the spring steel plate is further installed on the supporting block. The energy collection is completed by bending and vibrating the spring steel plate and driving the piezoelectric ceramics. In a non-working state of the device, the spring should be in a compressed state, meanwhile, the spring steel plate is in an outward bending state, so that the device can absorb vibration energy generated by the environment more easily, and the piezoelectric ceramic can be divided into multiple sections to replace the whole piezoelectric ceramic so as to adapt to large bending of the steel plate, protect the ceramic and improve the energy collection efficiency. Piezoelectric ceramics can also be arranged on the inner side of the spring steel plate according to actual working conditions. Due to the unique structural characteristics, the device can complete bending around the x-axis direction and the y-axis direction; and compression in the z direction can be achieved, and the energy collection efficiency is greatly improved. Due to the fact that connection of the device is completed through the spring steel plate and the spring, the device can also be used as an effective damping and buffering device.

Description

technical field [0001] The invention belongs to the field of piezoelectric energy collection, in particular to a multi-directional piezoelectric energy collection device. Background technique [0002] Piezoelectric energy harvesting has developed rapidly in recent years. The main principle is that when external vibration acts on the piezoelectric energy harvesting device, the piezoelectric material (such as piezoelectric ceramics) will deform, and the surface of the material will produce a The polarization effect of charge accumulation collects the vibration energy of the environment as electrical energy. [0003] Piezoelectric energy harvesters are widely used in wearable devices, smart homes, military industry, communications, etc. due to their simple structure and light weight. [0004] Recently, when it comes to green energy, the first thing that comes to mind is solar energy and wind energy, but compared with piezoelectric energy harvesting devices, the equipment cost ...

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): H02N2/18
CPCH02N2/186
Inventor 张斌何晨阳高峰
Owner SHANDONG 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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com