CN103795292A - Novel piezoelectric power generation device using curve L-shaped mass block - Google Patents
Novel piezoelectric power generation device using curve L-shaped mass block Download PDFInfo
- Publication number
- CN103795292A CN103795292A CN201410068210.4A CN201410068210A CN103795292A CN 103795292 A CN103795292 A CN 103795292A CN 201410068210 A CN201410068210 A CN 201410068210A CN 103795292 A CN103795292 A CN 103795292A
- Authority
- CN
- China
- Prior art keywords
- curve
- shaped mass
- piezoelectric
- power generation
- cantilever beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention relates to a piezoelectric power generation device of a novel structure and belongs to the technical field of power generation by recovering vibration energy. According to a novel piezoelectric power generation device using a curve L-shaped mass block, the curve L-shaped mass block is applied to a cantilever beam type power generation structure, strain distribution on the cantilever beam is made to be even to a certain extent due to the curve L-shaped mass block, the energy density of a piezoelectric energy recovering device is improved, and the vibration energy recovering efficiency is improved; meanwhile, due to the fact that a rectifying circuit and a capacitor or a battery are arranged inside the mass block, the whole device is compact in structure, and the reliability is improved. The novel piezoelectric power generation device using the curve L-shaped mass block is high in practicability and reliable in structure and can drive a certain load.
Description
Technical field
The present invention relates to a kind of novel piezoelectric energy collecting device, particularly a kind of L shaped mass piezoelectric generating device of curve through optimizing.
Background technology
Along with the fast development of micro-electricity and micro-fabrication technology, thus for the supply energy of these low power dissipation electron equipment becomes problem demanding prompt solution.The mode that uses battery to supply with energy has inconvenience because of the deficiency of battery itself; A lot of energy harvesting modes is more difficult being applied in microelectronic device due to the effects limit such as physical dimension and range of application, and in environment, exist the energy not much being utilized, therefore from environment, recuperated energy is that microelectronic device energy supply is a very significant problem.In environment, extensively exist vibrational energy, piezoelectric vibration energy recovery system becomes the focus of research because of its unique advantage.Piezoelectric energy recovery Optimized Approaches mainly contains piezoelectricity recovery circuit and optimizes and the optimization of piezoelectricity recovery structure.The optimization of piezoelectricity recovery structure has mainly comprised frequency match, increased dependent variable and has improved stress distribution and raising these aspect of electromechanical coupling factor.Traditional cantilever beam structure is the most frequently used structure during piezoelectric vibration energy reclaims, and its shortcoming is that energy recovery efficiency is low, and utilizing of piezoelectric is inhomogeneous, and piezoelectric easily damages.
Summary of the invention
The object of this invention is to provide the L shaped mass piezoelectric generating device of a kind of novel curve, solve above-mentioned traditional beam type piezoelectric generating device exist the energy recovery efficiency causing because stress distribution is inhomogeneous low, piezoelectric is due to the damage that is subject to for a long time inhomogeneous strain and produces, exposed piezoelectric accidental injury, by the present invention, the vibrational energy of environment being collected and stored, is electronic equipment energy supply.
Technical scheme of the present invention: the L shaped mass piezoelectric generating device of a kind of novel curve, is characterized in that: comprise the cantilever beam being fixed on base, the L shaped mass of curve on cantilever beam, is built in the L shaped mass rectifying device of curve and energy storing device.
The L shaped mass of one end upper curve is fixed in described cantilever beam one end, is fixed with piezoelectric on cantilever beam, and piezoelectric is between cantilever beam and the L shaped mass of curve, and piezoelectric is delivered to rectifying device and energy storing device by electrode and wire by electric current.
The shape of the described L shaped mass of curve is that curve is L shaped, and there is cavity the L shaped mass of curve inside, and rectifying device, energy storage device are installed in cavity.
Described piezoelectric is piezoelectric ceramic or piezoelectric polymer composite material.
Compared with prior art, the present invention has designed the L shaped mass of a kind of novel curve, make cantilever beam except being subject to moment of flexure, also be subject to moment of torsion, it is even that stress distribution on cantilever beam is tending towards, and then also make the suffered strain of piezoelectric evenly reasonable, utilize more fully the generating capacity of piezoelectric, improve the whole efficiency of device, the L shaped mass of curve is compared with the L shaped mass of straight line, the stroke of mass end is increased, adapt to more high-intensity vibration environment, prevent that mass end from damaging upper piezoelectric, the L shaped mass of curve is positioned at this structure of cantilever beam top and also as umbrella, has protected piezoelectric, rectification circuit and energy storage device are placed in the L shaped mass of curve, device total quality is alleviated, volume reduces, structure is compacter, reasonable in design of the present invention, can efficiently the vibrational energy in environment be converted into electric energy, for load supplying.
Accompanying drawing explanation
Fig. 1 is the structural representation in of the present invention.
Being labeled as in accompanying drawing: the L shaped mass of 1-curve, 2-rectification circuit and energy storage device, 3-piezoelectric, 4-cantilever beam, 5-base.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, in the time that perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in here and will be left in the basket, as shown in Figure 1, comprise base 5, one end cantilever beam 4 freely on base 5 is fixed in one end, piezoelectric 3 is fixed on cantilever beam 4, the L shaped mass 1 of curve is fixed on the free end of cantilever beam 4, rectification circuit and energy storage device 2 are placed in the cavity of the L shaped mass 1 of curve, and piezoelectric 3 is linked to be loop with rectification circuit and energy storage device 2 by electrode and guiding.
The principle of the invention is as follows: the vibration of base makes cantilever beam vibration, under the effect of the L shaped mass of curve, cantilever beam is not only subject to moment of flexure but also be subject to moment of torsion, make cantilever beam that strain relatively uniformly occur, the piezoelectric being fixed on cantilever beam is subject to strain equally, thereby produces certain electromotive force, in loop, form electric current, the electric current that the strain changing changes, these electric currents can be stored by energy storage device after rectification circuit, for driving certain load.
Claims (4)
1. the L shaped mass piezoelectric generating device of novel curve, it is characterized in that: comprise the cantilever beam (4) being fixed on base (5), the L shaped mass of curve (1) on cantilever beam, is built in rectification circuit and the energy storage device (2) of the L shaped mass of curve.
2. the L shaped mass piezoelectric generating device of the novel curve of one according to claim 1, it is characterized in that: the L shaped mass of one end upper curve (1) is fixed in described cantilever beam one end, on cantilever beam, be fixed with piezoelectric (3), piezoelectric is between cantilever beam (4) and the L shaped mass of curve (1), and piezoelectric (3) is delivered to rectification circuit and energy storage device (2) by electrode and wire by electric current.
3. the L shaped mass piezoelectric generating device of the novel curve of one according to claim 1, it is characterized in that: the shape of the L shaped mass of described curve (1) is that curve is L shaped, there is cavity the L shaped mass of curve inside, and rectifying device, energy storage device are installed in cavity.
4. the L shaped mass piezoelectric generating device of the novel curve of one of stating according to claim 1, is characterized in that: described piezoelectric is piezoelectric ceramic or piezoelectric polymer composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068210.4A CN103795292A (en) | 2014-02-27 | 2014-02-27 | Novel piezoelectric power generation device using curve L-shaped mass block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068210.4A CN103795292A (en) | 2014-02-27 | 2014-02-27 | Novel piezoelectric power generation device using curve L-shaped mass block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103795292A true CN103795292A (en) | 2014-05-14 |
Family
ID=50670683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068210.4A Pending CN103795292A (en) | 2014-02-27 | 2014-02-27 | Novel piezoelectric power generation device using curve L-shaped mass block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103795292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492787A (en) * | 2019-08-08 | 2019-11-22 | 西安交通大学 | A kind of uniform stress piezoelectricity simply supported beam vibrational energy collector and Energy harvesting methods |
-
2014
- 2014-02-27 CN CN201410068210.4A patent/CN103795292A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492787A (en) * | 2019-08-08 | 2019-11-22 | 西安交通大学 | A kind of uniform stress piezoelectricity simply supported beam vibrational energy collector and Energy harvesting methods |
| CN110492787B (en) * | 2019-08-08 | 2021-07-13 | 西安交通大学 | Uniformly-distributed stress piezoelectric simply-supported beam vibration energy collector and energy collecting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105897047B (en) | A kind of comb energy accumulator that continuous dislocation is changed into shock loading | |
| CN205490228U (en) | Energy gatherer based on electret film | |
| CN104038016A (en) | Wearable power generating device | |
| CN103815610A (en) | Shoe with curve L-shaped mass block piezoelectric power generation device used | |
| CN103791967A (en) | Passive electronic water meter utilizing piezoelectric power generation device | |
| CN103795292A (en) | Novel piezoelectric power generation device using curve L-shaped mass block | |
| CN204190649U (en) | Piezoelectric energy collector | |
| CN104013175B (en) | A kind of generation travel case based on piezoelectric | |
| CN103414220A (en) | Water drop power generation method and micro water drop power generation system based on ICPF | |
| CN203883705U (en) | Environmental-friendly treading-type power generation device | |
| CN105450085A (en) | Mobile power supply based on piezoelectric electromagnetic integrated power generation | |
| CN202260957U (en) | Self-charging device | |
| CN204615694U (en) | A kind of piezoelectric type vibration energy collecting device | |
| CN107733284B (en) | A kind of two-freedom piezoelectricity electromagnetic hybrid energy accumulator | |
| CN106487047A (en) | Electric power system in conjunction with the low-power consumption on-line monitoring equipment of efficient ultracapacitor | |
| CN105472119A (en) | Touch screen mobile phone capable of being automatically charged | |
| CN206004556U (en) | Energy conversion device based on chattering | |
| CN103178746A (en) | Cantilever lever piezoelectric generating component | |
| CN201036239Y (en) | Rechargeable electric razor | |
| CN202663175U (en) | Energy recovery device for piezoelectric cantilever bump leveller | |
| CN207150463U (en) | A kind of sensor-use source | |
| CN201766456U (en) | Pneumatic type energy storage power generation system | |
| CN203707863U (en) | Geothermal energy recycling apparatus | |
| CN205178831U (en) | Vibrating energy collecting device | |
| CN203135753U (en) | Piezoelectric ceramic power generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |