CN103107740A - Columnar multi-direction piezoelectric power generation device - Google Patents
Columnar multi-direction piezoelectric power generation device Download PDFInfo
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- CN103107740A CN103107740A CN2013100737795A CN201310073779A CN103107740A CN 103107740 A CN103107740 A CN 103107740A CN 2013100737795 A CN2013100737795 A CN 2013100737795A CN 201310073779 A CN201310073779 A CN 201310073779A CN 103107740 A CN103107740 A CN 103107740A
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Abstract
The invention discloses a columnar multi-direction piezoelectric power generation device which comprises multiple cantilever piezoelectric vibrators, wherein one ends of the cantilever piezoelectric vibrators are fixed on a cylindrical base, and the cantilever piezoelectric vibrators are distributed in a circular array by taking the circle centre of the cylindrical base as a centre; and simultaneously, the multiple cantilever piezoelectric vibrators are distributed sequentially in an up and down staggered manner along the axial direction of the cylindrical base, and the sizes of all the cantilever piezoelectric vibrators are different. According to the manner, the columnar multi-direction piezoelectric power generation device disclosed by the invention consists of the multiple cantilever piezoelectric vibrators which are uniformly distributed along the axial and radial directions of the cylindrical fixed base, so that environmental vibration energy transmitted in all directions can be efficiently collected, and furthermore, the generating efficiency is high.
Description
Technical field
The present invention relates to energy technology field, particularly relate to the multi-direction piezoelectric generating device of a kind of column.
Background technology
Portability electronic device and radio sensing network have obtained development fast in the past decades, especially are widely used at aspects such as health detection system, environmental control system, embedded system, military security application system and open-air animal tracking devices.Usually, these devices rely on traditional electrochemical cell that energy is provided.Along with the high speed development of complex digital system integrated technology, microelectronic component is reducing aspect size and energy consumption greatly, yet the power supply of these devices becomes one of bottleneck of its development because volume is larger.And battery is bulky for microelectronic component, the life-span is short, chemical toxicity is seriously polluted, and needs periodic replacement, and this provides the wireless senser of energy to bring a lot of inconvenience and financial burden to being in remote needs for a long time; Especially for the electronic system that is embedded in clothes, human body and animal body, changing battery is difficult or even impossible thing.Therefore, in order to obtain the self-powered system of long-term even unlimited life cycle, harvest energy is to the electronic device power supply from surrounding environment in various countries researcher research, and purpose is to replace the radio sensing network power supply that conventional batteries is MEMS and low-power consumption.One or more of the energy that surrounding environment is existed (comprise heat energy, wind energy, acoustic energy, water energy, solar energy, electromagnetic wave, light, mechanical vibrational energy and mankind's activity can etc.) collect and convert electric energy to, then directly power or be stored in the energy storage devices such as capacitor, ultracapacitor or chargeable battery to electronic device, this process is collection of energy.The method of harvest energy has three classes such as electromagnetic type, electrostatic and piezoelectric type from various energy sources.Compare with other electricity generating principle, that piezo-electric generating has is simple in structure, do not generate heat, without electromagnetic interference, pollution-free and be easy to realize the microminiaturization of mechanism, the plurality of advantages such as integrated, and can satisfy the energy supply demand of this type of low power consuming product.
The present low problem of piezoelectric generating device ubiquity generating efficiency, the voltage that main manifestations produces is low, electric weight is little.Cantilever beam piezoelectric vibrators has that vibration frequency is low, energy conversion efficiency is high and be easy to the advantages such as integrated, therefore receives much concern at present.But single cantilever beam piezoelectric vibrator generating capacity is lower, and electric weight is too little, vibration source vibration frequency in environment is often unstable in addition, single cantilever beam changes very sensitive to vibration frequency, be difficult for realizing the matched well with ambient vibration source vibration frequency, fully the vibrational energy in absorbing environmental.In addition, the vibrational energy in environment is random multi-direction transmission often, and single cantilever beam can only be more responsive to the vibrational energy on a direction, and can not comprehensive collection environment vibrational energy, and this will cause the energy conversion efficiency of piezoelectric generating device low.
Summary of the invention
The technical problem that the present invention mainly solves is to provide the multi-direction piezoelectric generating device of a kind of column, it is comprised of a plurality of cantilever beam piezoelectric vibrators, each piezoelectric vibrator axially and radially evenly distributes along the column holder, can efficiently collect the ambient vibration energy of all directions transmission, and generating efficiency is high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of column multi-direction piezoelectric generating device, the multi-direction piezoelectric generating device of this column comprises that an end of a plurality of cantilever beam piezoelectric vibrators all is fixed on cylindrical seat, the described cantilever beam piezoelectric vibrators array distribution that becomes to go in ring centered by the center of circle of cylindrical seat, a plurality of cantilever beam piezoelectric vibrators axially are interspersed successively up and down along cylindrical seat simultaneously, and described each cantilever beam piezoelectric vibrators size is all different;
Preferably, described cantilever beam piezoelectric vibrators comprises that metallic matrix, piezoelectric ceramic piece and square mass stack successively and is pasted together;
Preferably, described cylindrical seat comprises that three disc-shaped base monomers are pasted together under certain pressure.
The invention has the beneficial effects as follows: the multi-direction piezoelectric generating device of a kind of column of the present invention, it is comprised of a plurality of cantilever beam piezoelectric vibrators, each piezoelectric vibrator axially and radially evenly distributes along the column holder, can efficiently collect the ambient vibration energy of all directions transmission, and generating efficiency is high.
Description of drawings
Fig. 1 is the structural representation of the multi-direction piezoelectric generating device of a kind of column of the present invention;
Fig. 2 is the vertical view of the multi-direction piezoelectric generating device of a kind of column of the present invention;
Fig. 3 is the piezoelectric vibrator details enlarged drawing of the multi-direction piezoelectric generating device of a kind of column of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that the advantage of invention and feature can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1 to Fig. 3, the embodiment of the present invention comprises:
The multi-direction piezoelectric generating device of a kind of column, the multi-direction piezoelectric generating device of this column comprises that an end of a plurality of cantilever beam piezoelectric vibrators 2 all is fixed on cylindrical seat 1, described cantilever beam piezoelectric vibrators 2 array distribution that becomes to go in ring centered by the center of circle of cylindrical seat 1, a plurality of cantilever beam piezoelectric vibrators 2 axially are interspersed successively up and down along cylindrical seat 1 simultaneously, and described each cantilever beam piezoelectric vibrators 2 sizes are all different; Described cantilever beam piezoelectric vibrators 2 comprises that metallic matrix 21, piezoelectric ceramic piece 22 and square mass 23 stack successively and is pasted together; Described cylindrical seat 1 comprises that three disc-shaped base monomers 11 are pasted together under certain pressure.
The operation principle of the multi-direction piezoelectric generating device of a kind of column: piezoelectric has direct piezoelectric effect and inverse piezoelectric effect.When piezoelectric is subject to external force and produces distortion, can cause the polarization that material internal positive and negative charge center relative displacement occurs and produces electricity, thereby cause occurring on material two surfaces the bound charge of opposite in sign, this character is direct piezoelectric effect.When piezoelectric two surfaces apply electric field, piezoelectric gets inner positive and negative charge center relative displacement occurs, and causes material deformation, and this is called inverse piezoelectric effect.Piezoelectric generating device is exactly that direct piezoelectric effect by piezoelectric is converted into electric energy with the vibrational energy in environment.
For improving the generating efficiency of this device, require piezoelectric vibrator to be operated under resonance condition, namely when the vibration frequency in ambient vibration source equals the natural frequency of piezoelectric vibrator, piezoelectric vibrator produces resonance, it is maximum that stress and strain in piezoelectric ceramic piece will reach, thereby make the ability of output reach maximum.And the frequency of ambient environment vibrations energy is constantly to change, and the piezoelectric vibrator that has so specific natural frequency is difficult to produce resonance with environmental energy.In order to realize the matched well of piezoelectric vibrator and ambient vibration frequency, each piezoelectric vibrator is designed to different sizes, each piezoelectric vibrator has different natural frequencys, can be complementary with the ambient vibration energy that changes within the specific limits like this, thereby improve the generating efficiency of whole device.
The multi-direction piezoelectric generating device of a kind of column of the present invention, it is comprised of a plurality of cantilever beam piezoelectric vibrators, and each piezoelectric vibrator axially and radially evenly distributes along the column holder, can efficiently collect the ambient vibration energy of all directions transmission, and generating efficiency is high.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (3)
1. multi-direction piezoelectric generating device of column, it is characterized in that: the multi-direction piezoelectric generating device of this column comprises that an end of a plurality of cantilever beam piezoelectric vibrators all is fixed on cylindrical seat, the described cantilever beam piezoelectric vibrators array distribution that becomes to go in ring centered by the center of circle of cylindrical seat, a plurality of cantilever beam piezoelectric vibrators axially are interspersed successively up and down along cylindrical seat simultaneously, and described each cantilever beam piezoelectric vibrators size is all different.
2. the multi-direction piezoelectric generating device of a kind of column according to claim 1 is characterized in that: described cantilever beam piezoelectric vibrators comprises that metallic matrix, piezoelectric ceramic piece and square mass stack successively and is pasted together.
3. the multi-direction piezoelectric generating device of a kind of column according to claim 1, it is characterized in that: described cylindrical seat comprises that three disc-shaped base monomers are pasted together under certain pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100737795A CN103107740A (en) | 2013-03-08 | 2013-03-08 | Columnar multi-direction piezoelectric power generation device |
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| CN2013100737795A CN103107740A (en) | 2013-03-08 | 2013-03-08 | Columnar multi-direction piezoelectric power generation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578908A (en) * | 2014-12-19 | 2015-04-29 | 西南交通大学 | Wind power generation device |
| CN105871253A (en) * | 2016-05-31 | 2016-08-17 | 佛山市天目工业测量科技有限公司 | Symmetric tuning fork type piezoelectric special-shaped cantilever wind power generation device |
| CN106026767A (en) * | 2016-05-20 | 2016-10-12 | 江苏大学 | Piezoelectric type vibration energy harvester |
| CN109861584A (en) * | 2019-04-09 | 2019-06-07 | 苏州市职业大学 | A kind of power generator for collecting arms swing energy |
| CN110078157A (en) * | 2019-03-21 | 2019-08-02 | 周楚新 | A kind of solar energy cooperates with the ultrasonic blue algae control device and method of power generation with wind energy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790548A (en) * | 2012-07-18 | 2012-11-21 | 天津大学 | Bistable composite cantilever beam piezoelectric power generating device |
| CN202652103U (en) * | 2012-06-14 | 2013-01-02 | 扬州大学 | Multilayer cantilever beam piezoelectric power generator |
| CN203151398U (en) * | 2013-03-08 | 2013-08-21 | 苏州市职业大学 | Columnar multi direction piezoelectric power generation device |
-
2013
- 2013-03-08 CN CN2013100737795A patent/CN103107740A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202652103U (en) * | 2012-06-14 | 2013-01-02 | 扬州大学 | Multilayer cantilever beam piezoelectric power generator |
| CN102790548A (en) * | 2012-07-18 | 2012-11-21 | 天津大学 | Bistable composite cantilever beam piezoelectric power generating device |
| CN203151398U (en) * | 2013-03-08 | 2013-08-21 | 苏州市职业大学 | Columnar multi direction piezoelectric power generation device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578908A (en) * | 2014-12-19 | 2015-04-29 | 西南交通大学 | Wind power generation device |
| CN106026767A (en) * | 2016-05-20 | 2016-10-12 | 江苏大学 | Piezoelectric type vibration energy harvester |
| CN105871253A (en) * | 2016-05-31 | 2016-08-17 | 佛山市天目工业测量科技有限公司 | Symmetric tuning fork type piezoelectric special-shaped cantilever wind power generation device |
| CN110078157A (en) * | 2019-03-21 | 2019-08-02 | 周楚新 | A kind of solar energy cooperates with the ultrasonic blue algae control device and method of power generation with wind energy |
| CN110078157B (en) * | 2019-03-21 | 2021-11-19 | 周楚新 | Ultrasonic blue-green algae control device and method for solar energy and wind energy cooperative power generation |
| CN109861584A (en) * | 2019-04-09 | 2019-06-07 | 苏州市职业大学 | A kind of power generator for collecting arms swing energy |
| CN109861584B (en) * | 2019-04-09 | 2024-02-09 | 苏州市职业大学 | Power generation device for collecting arm swing energy |
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Application publication date: 20130515 |