Piezoelectric Vibrator with Nonlinear Differential Geometry
A technology of piezoelectric vibrator and differential geometry, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., which can solve the problem of narrow resonance frequency band and difficulty in satisfying resonance requirements of linear piezoelectric vibrators. State, energy collection efficiency reduction and other issues, to achieve the effect of high energy collection efficiency
Active Publication Date: 2022-03-29
GUANGXI UNIV
View PDF5 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the output power of the vibrating piezoelectric generator is still limited in many fields. The resonance frequency band of the linear piezoelectric vibrator used in the linear piezoelectric generator is narrow, and the excitation of the external environment is often in the broadband range. Time-varying, the linear piezoelectric vibrator is often difficult to meet the resonance state, resulting in a great reduction in energy collection efficiency
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein in the description of the application are only for the purpose of describing specific embodiments , is not intended to limit the present application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and the description of the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.
[0029] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application....
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
Login to View More Abstract
The invention provides a piezoelectric vibrator with non-linear differential geometric characteristics, which is characterized in that it comprises: a support; , the middle layer and the second piezoelectric layer, and the first piezoelectric layer, the middle layer and the second piezoelectric layer are sequentially stacked in the direction perpendicular to the extending direction of the vibrator body, the first piezoelectric layer and the second piezoelectric layer Made of piezoelectric material, the middle layer is made of conductive material, the extension path of the vibrator body is a nonlinear space curve; the mass block is installed at the free end of the vibrator body, and the mass block is used to drive the vibrator body together under external excitation vibration. The quality block drives the vibrator body to vibrate together under external excitation, and the first piezoelectric layer and the second piezoelectric layer generate a potential difference due to the piezoelectric effect, so that the external excitation can be converted into electrical energy, and the vibrator body is more likely to generate nonlinear resonance. Energy harvesting is more efficient.
Description
technical field [0001] The invention relates to the technical field of piezoelectric power generation, in particular to a piezoelectric vibrator with non-linear differential geometric characteristics. Background technique [0002] The vibrating piezoelectric generator has a simple structure, high energy density, and can be miniaturized well, so it is one of the research hotspots of the vibrating micro-generator. However, the output power of the vibrating piezoelectric generator is still limited in many fields. The resonance frequency band of the linear piezoelectric vibrator used in the linear piezoelectric generator is narrow, and the excitation of the external environment is often in the broadband range. Time-varying, the linear piezoelectric vibrator is often difficult to meet the resonance state, resulting in a great reduction in energy collection efficiency. [0003] Therefore, it is also necessary to provide a new piezoelectric vibrator to solve the above problems. ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/186H02N2/188
Inventor 丁江耿婷韦玉庭
Owner GUANGXI UNIV