CN202906786U - Piezoelectric vibration power generation system - Google Patents
Piezoelectric vibration power generation system Download PDFInfo
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- CN202906786U CN202906786U CN 201220633244 CN201220633244U CN202906786U CN 202906786 U CN202906786 U CN 202906786U CN 201220633244 CN201220633244 CN 201220633244 CN 201220633244 U CN201220633244 U CN 201220633244U CN 202906786 U CN202906786 U CN 202906786U
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Abstract
Disclosed is a piezoelectric vibration power generation system, comprising an energy collection unit, a rectification unit, a power supply management unit, an input under-voltage locking unit, an output threshold control unit, and an output voltage stabilization unit, wherein the energy collection unit comprises a sealing housing, upper and lower layers of piezoelectric ceramic sheets, a mass block, two stoppers, a metal sheet, and an output lead; the upper and lower layers of piezoelectric ceramic sheets are respectively glued to two sides of the metal sheet to form a rectangular beam; one end of the rectangular beam is fixed to the outlet of the sealing housing, with the other end thereof being provided with the mass block; the intermediate section utilizes the stoppers to carry out spacing; and the energy collection unit is connected with the rectification unit via the output lead. The generating mode is driven by environment vibration for generation, has relatively long vibration-lasting period, is capable of realizing energy transformation and storage with no human involved, and provides continuous electric energy supply. The piezoelectric vibration power generation system can be integrated with a micro-electronic device and provides real-time power supply for the micro-electronic device. Currently, the piezoelectric vibration power generation system is applicable to the power generation in the vibration environment or the power generation of the sea waves.
Description
Technical field
The utility model belongs to electronic technology field, is specifically related to a kind of vibration that utilizes piezoelectric ceramic, mechanical energy is converted to the electricity generation system of electric energy.
Background technology
As everyone knows, piezoelectric can produce electric charge (or voltage) under external force, the electric energy that produces can directly be utilized to make electronic lighter, gas igniter etc., but be subjected to the restriction of piezoelectric generating capacity, with this part charge-trapping, store as the research of the power supply that drives micropower electrical equipment seldom always.That the advantage of piezoelectric generating device is is simple in structure, do not generate heat, without electromagnetic interference, be easy to the miniaturization, integrated etc. on processing and fabricating and the implementation structure, have very wide application prospect, attract wide attention.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of piezoelectric vibration power generation system is provided, and its characteristics are need not artificial participation, and only by the ambient vibration generating, energy collecting efficient is high, and relatively continual and steady supply of electric power can be provided.
The technical solution of the utility model is: a kind of piezoelectric vibration power generation system, comprise energy collection unit, rectification unit, Power Management Unit, the input undervoltage lock cell, output thresholding control unit and output voltage regulation unit, wherein energy collection unit comprises can, two-layer piezoelectric ceramic piece up and down, mass, guide vane end stop, sheet metal and output lead, two-layer piezoelectric ceramic piece sticks on respectively sheet metal both sides formation rectangular beam up and down, one end of rectangular beam is fixed to the exit of can, the other end is with mass, the stage casing is carried out spacing with guide vane end stop, energy collection unit is connected with rectification unit by output lead.
Polarised direction is opposite when two-layer piezoelectric ceramic piece and metal bonding film up and down.
The vibration that the utility model can continue by piezoelectric ceramic piece and special structural design thereof even amplifying ambient produces is converted to electric energy with mechanical energy, and collects this electric energy of store and management.When reaching the threshold value of setting, the electric energy that output is collected is to electronic product.This generation mode drives generating by ambient vibration, has long vibration duration, does not need people's participation just can realize conversion and the storage of energy, and lasting electric power supply is provided.Can be integrated with microelectronic component, for it provides real-time supply of electric power.At present this device can be used under the vibration environment or the generating of wave.
Description of drawings
Fig. 1 is piezo-electric generating circuit system schematic diagram.
Fig. 2 is energy collection unit concrete structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, during ambient vibration, the electric energy of energy collection unit 1 generation of vibration is alternating current, and energy is fainter, makes alternating current become direct current by high efficiency rectification unit 2, and reduces as far as possible its decay, by Power Management Unit 3 power storage is arrived afterwards the capacitor C 1 of high-quality, when collection of energy when a certain amount of, the input undervoltage lock cell will make metal-oxide-semiconductor Q3 conducting, control Power Management Unit 3 powers to the load by the voltage that presets and current parameters.When output voltage during less than default threshold value, output thresholding control unit 5 will stop outside output voltage or electric current by metal-oxide-semiconductor Q3 control Power Management Unit 3.Voltage-stabiliser tube Z2 in the output voltage regulation unit 6 is used for guaranteeing output voltage stabilization.
As shown in Figure 2, energy collection unit is a kind of volute spring system that forms with the bimorph cantilever beam.Two-layer rectangular piezoelectric ceramic sheet 8 is glued at the both sides formation rectangular beam of sheet metal 12 up and down.One end of rectangular beam is fixed to the exit of can 9, and the other end is with mass 10, and the stage casing is carried out spacing with spacing 7, consists of spring mass system.When ambient vibration, mass 10 will according to inertial theorem, drive rectangular beam and do taper free vibration.Piezoelectric ceramic piece on the rectangular beam then by piezoelectric effect, is converted to electric energy with mechanical energy, thus the energy of absorbing environmental vibration.
The position of the quality of the material of piezoelectric ceramic piece 8 and size, mass 10 and guide vane end stop 7 arranges, and jointly adjusts Oscillation Amplitude and the frequency of whole spring mass system.So, being in resonance state for guaranteeing this System and Surroundings vibration, there is strict requirement the weight of the brachium of rectangular beam and mass 10 and the position of guide vane end stop 7.
By output lead 11 and sheet metal 12 energy collection unit 1 is connected in the circuit of piezo-electric generating system.
Claims (2)
1. piezoelectric vibration power generation system, it is characterized in that comprising energy collection unit (1), rectification unit (2), Power Management Unit (3), input undervoltage lock cell (4), output thresholding control unit (5) and output voltage regulation unit (6), wherein energy collection unit (1) comprises can (9), two-layer piezoelectric ceramic piece (8) up and down, mass (10), guide vane end stop (7), sheet metal (12) and output lead (11), two-layer piezoelectric ceramic piece (8) sticks on respectively sheet metal (12) both sides formation rectangular beam up and down, one end of rectangular beam is fixed to the exit of can (9), the other end is with mass (10), the stage casing is carried out spacing with guide vane end stop (7), energy collection unit (1) is connected with rectification unit (2) by output lead (11).
2. piezoelectric vibration power generation as claimed in claim 1 system, polarised direction is opposite when it is characterized in that two-layer piezoelectric ceramic piece (8) and sheet metal (12) are bonding up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633244 CN202906786U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric vibration power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633244 CN202906786U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric vibration power generation system |
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| CN202906786U true CN202906786U (en) | 2013-04-24 |
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| CN 201220633244 Expired - Fee Related CN202906786U (en) | 2012-11-26 | 2012-11-26 | Piezoelectric vibration power generation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607138A (en) * | 2013-11-01 | 2014-02-26 | 南京航空航天大学 | Self-powered type nonlinear piezoelectric vibration energy extraction circuit |
| CN106949043A (en) * | 2017-05-02 | 2017-07-14 | 辽宁工程技术大学 | A kind of air compressor machine condition detecting system of collecting mechanical vibrational energy |
| CN107104609A (en) * | 2016-02-20 | 2017-08-29 | 重庆交通大学 | Vibration generating device is flowed during a kind of hanging piezoelectric cantilever |
| CN107332461A (en) * | 2016-12-14 | 2017-11-07 | 北京理工大学 | The electric energy management system and its method of self-powered sensing micro-system based on vibrational energy acquisition technique |
| CN110061530A (en) * | 2019-04-22 | 2019-07-26 | 重庆邮电大学 | A kind of electric field energy acquisition power supply applied to 220V power line |
| CN111585469A (en) * | 2020-06-10 | 2020-08-25 | 中国电子科技集团公司第五十四研究所 | Piezoelectric type self-generating micro-energy collecting device and method |
-
2012
- 2012-11-26 CN CN 201220633244 patent/CN202906786U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607138A (en) * | 2013-11-01 | 2014-02-26 | 南京航空航天大学 | Self-powered type nonlinear piezoelectric vibration energy extraction circuit |
| CN107104609A (en) * | 2016-02-20 | 2017-08-29 | 重庆交通大学 | Vibration generating device is flowed during a kind of hanging piezoelectric cantilever |
| CN107104609B (en) * | 2016-02-20 | 2019-04-05 | 重庆交通大学 | A kind of hanging piezoelectric cantilever Shi Junliu vibration generating device |
| CN107332461A (en) * | 2016-12-14 | 2017-11-07 | 北京理工大学 | The electric energy management system and its method of self-powered sensing micro-system based on vibrational energy acquisition technique |
| CN106949043A (en) * | 2017-05-02 | 2017-07-14 | 辽宁工程技术大学 | A kind of air compressor machine condition detecting system of collecting mechanical vibrational energy |
| CN110061530A (en) * | 2019-04-22 | 2019-07-26 | 重庆邮电大学 | A kind of electric field energy acquisition power supply applied to 220V power line |
| CN110061530B (en) * | 2019-04-22 | 2023-03-31 | 重庆邮电大学 | Electric field energy acquisition power supply applied to 220V power line |
| CN111585469A (en) * | 2020-06-10 | 2020-08-25 | 中国电子科技集团公司第五十四研究所 | Piezoelectric type self-generating micro-energy collecting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI'AN HEALTHLEAD CORPORATION LTD. Free format text: FORMER OWNER: XI'AN KANGHONG NEW MATERIALS + TECHNOLOGY CO., LTD. Effective date: 20150820 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150820 Address after: 710075 Kang Hong Industrial Park, No. six, 40 hi tech Road, Xi'an hi tech Zone, Shaanxi Patentee after: HEALTHLEAD Corp.,Ltd. Address before: 710075 Kang Hong Industrial Park, No. six, 40 hi tech Road, Xi'an hi tech Zone, Shaanxi Patentee before: XI'AN KANGHONG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20211126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |