CN108736763A - A kind of two-way series broadband piezoelectric harvester of parallel circuit - Google Patents
A kind of two-way series broadband piezoelectric harvester of parallel circuit Download PDFInfo
- Publication number
- CN108736763A CN108736763A CN201810613017.2A CN201810613017A CN108736763A CN 108736763 A CN108736763 A CN 108736763A CN 201810613017 A CN201810613017 A CN 201810613017A CN 108736763 A CN108736763 A CN 108736763A
- Authority
- CN
- China
- Prior art keywords
- seismic mass
- overarm arm
- parallel
- arm
- piezoelectric harvester
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 19
- 239000002033 PVDF binder Substances 0.000 claims description 10
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 10
- 229910052779 Neodymium Inorganic materials 0.000 claims description 7
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical group [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 7
- 241001124569 Lycaenidae Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 206010016256 fatigue Diseases 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Landscapes
- Geophysics And Detection Of Objects (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of two-way series broadband piezoelectric harvesters of parallel circuit, including one group of seismic mass and the overarm arm being arranged in seismic mass, one group of seismic mass includes the first seismic mass and the second seismic mass, it is respectively arranged with parallel overarm arm and corresponding vertical overarm arm in first seismic mass and the second seismic mass, it is both provided with piezoceramics layer on the upper surface of the vertical direction of the upper surface of the parallel direction of parallel overarm arm and vertical overarm arm, there are one permanent magnets for the setting of the tail end of parallel overarm arm and vertical overarm arm, the polarity of two permanent magnets is identical face-to-face, first seismic mass is connected with the second seismic mass using parallel circuit mode.The present invention uses two-way overarm arm configuration in parallel, while multigroup overarm arm of connecting in same seismic mass, enhances the efficiency of prisoner's energy, to have the function that improve piezoelectric harvester performance and bandwidth.
Description
Technical field
The invention belongs to piezoelectric harvester technical fields, and in particular to a kind of two-way series broadband piezoelectricity prisoner of parallel circuit
It can device.
Background technology
Piezoelectric harvester grew up in recent years, since this energy is a kind of reproducible green cleaning energy
Source.Common piezoelectric harvester is to cover one layer of piezoceramics layer in an overarm arm, and permanent magnet is put in the tail end of overarm arm,
Piezoceramics layer is set to generate deformation using the power of generation, to obtain electric energy by conversion, this just constitutes piezoelectric harvester.
Piezoelectric harvester is divided into two major classes, i.e. overarm arm monocrystalline chip architecture and overarm arm multi-wafer knot by structure feature
Structure can be divided into linear energy accumulator and non-linear energy accumulator by whether containing nonlinear terms classification.Though the linear energy accumulator of preceding one kind
The maximum power output under resonant excitation so may be implemented, but when driving frequency offset, the power of output can significantly decline；
And the performance of performance ratio linear energy accumulator of the nonlinear energy accumulator of latter class under arbitrary excitation is more preferable, therefore non-linear knot
Structure uses more.
Common piezoelectric material is PZT, but since PZT is easily broken off by big stress, uses PVDF (high polymers here
Polyvinylidene fluoride), PVDF is more flexible, it is not easy to be broken, fatigability is also more preferable caused by fighting big stress.
Piezoelectric harvester based on road surface is typically employed in the range of 15Hz frequencies, special piezoelectric harvester due to the use of
Environment it is different, frequency also can higher.It is more common in generated road shock when running car, the shake of track when train movement
It is dynamic, since under conditions of this low frequency on road surface and big stress, the prisoner of common piezoelectric harvester can less efficient, bandwidth
Relatively narrow, the use on road surface is not ideal enough.
Invention content
It is an object of the invention to：It solves under conditions of this low frequency on road surface and big stress, pressure common at present
Less efficient, the narrower bandwidth of electric energy accumulator prisoner energy, uses not ideal enough problem, proposes a kind of two-way string based on parallel circuit
Join broadband piezoelectric harvester, using two-way overarm arm configuration in parallel, while multigroup overarm arm of connecting in same seismic mass, increase
Strong prisoner can efficiency, to have the function that improve piezoelectric harvester performance and bandwidth.
The technical solution adopted by the present invention is as follows：
A kind of two-way series broadband piezoelectric harvester of parallel circuit, including one group of seismic mass and be arranged in seismic mass
Overarm arm, one group of seismic mass include the first seismic mass and the second seismic mass, are respectively set in the first seismic mass and the second seismic mass
There are a parallel overarm arm and corresponding vertical overarm arm, the upper surface of the parallel direction of parallel overarm arm and vertical overarm arm
Piezoceramics layer is both provided on the upper surface of vertical direction, there are one forever for the tail end setting of parallel overarm arm and vertical overarm arm
The polarity of magnet, two permanent magnets is identical face-to-face, and the first seismic mass is connected with the second seismic mass using parallel circuit mode.
Further, it is arranged at intervals with multigroup corresponding parallel overarm arm in first seismic mass and the second seismic mass and hangs down
Straight overarm arm, the overarm arm in same seismic mass are connected using series circuit mode.
Further, the piezoelectric harvester includes multigroup seismic mass.
Further, the thickness of the piezoceramics layer and the ratio of overarm arm are 1.273.
Further, the material of the piezoceramics layer is PVDF.
Further, the material of the permanent magnet is neodymium.
Further, the length of spaced overarm arm is different in the same seismic mass.
Further, it is provided on the permanent magnet and chooses the pressure sensing of overarm arm lengths for measuring external pressure
Device.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, in the present invention, two-way overarm arm configuration is set in two seismic mass using parallel connection, while in same seismic mass
The upper multigroup overarm arm of series connection, enhances the efficiency of prisoner's energy, to have the function that improve piezoelectric harvester performance and spread bandwidth；
2, in the present invention, piezoelectric harvester includes multigroup seismic mass, and when road shock can drive multigroup seismic mass to shake
Prisoner's energy, the prisoner that can further enhance piezoelectric harvester can efficiency；
3, in the present invention, the material of piezoceramics layer is PVDF, can bear the stress of bigger, it is not easy to it is broken, and due to
The fatigability of material, it is more preferable to fatigue resistance effect using this high molecular materials of PVDF for other materials；
4, in the present invention, the material of permanent magnet is neodymium, and the magnetic force of neodymium is larger, can generate larger magnetic force, is made vertically outstanding
Beam arm is shaken, and multidirectional prisoner's energy is obtained；
5, in the present invention, the thickness of piezoceramics layer and the ratio of overarm arm are 1.273, and energy will be obtained by meeting ratio
Effect it is best；
6, in the present invention, spaced multigroup parallel overarm arm and corresponding vertical overarm in the seismic mass
The length of the overarm arm up and down of same seismic mass setting is different in arm, and the overarm arm of concatenated multiple and different length contributes to
Prisoner's energy efficiency is improved, and the requirement of frequency bandwidth is more easily satisfied；
7, it in the present invention, is provided on the permanent magnet and is passed for measuring external pressure to choose the pressure of overarm arm lengths
Sensor when practical application, according to the shock conditions on different road surfaces, passes through the output of the data to pressure sensor, chooses different
The overarm arm of length helps to widen frequency bandwidth, and the frequency of environment is made to be within the frequency bandwidth of cantilever beam.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is schematic structural view of the invention；
It is marked in figure：The first seismic mass of 1-, the second seismic mass of 2-, the parallel overarm arms of 3-, the vertical overarm arms of 4-, 5- piezoelectricity pottery
Enamel coating, 6- permanent magnets, 7- pressure sensors；
Fig. 2 is installation diagram of the present invention；
It is marked in figure：21- pressure plares, 22- sealing rings；
Fig. 3 is simplified electrical circuit diagram of the present invention；
It is marked in figure：31- energy accumulator entirety equivalent sources；
Fig. 4 is structural schematic diagram of the embodiment of the present invention；
Fig. 5 is structure top view of the embodiment of the present invention；
Fig. 6 is that the whole prisoner of the present invention can flow chart.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment of the present invention, people in the art
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that including a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
A kind of two-way series broadband piezoelectric harvester of parallel circuit, using multidirectional piezoelectric harvester, by of the same race
Two-way overarm arm configuration is set in two seismic mass of structure and carries out parallel connection, while multigroup overarm of connecting in same seismic mass
Arm, can energy caused by larger utilization road shock, by it is whole it is in parallel also improve prisoner can efficiency, core is sharp
Prisoner's energy is carried out with the effect of multidirectional, the utilization rate of structure is made to reach maximum.Structure is as shown in Figure 1, include one group of seismic mass
With the overarm arm being arranged in seismic mass, seismic mass includes the first seismic mass 1 and the second seismic mass 2, the first seismic mass and second
Parallel overarm arm 3 and corresponding vertical overarm arm 4 are respectively arranged in seismic mass, in parallel overarm arm and vertical overarm arm
It is both provided with piezoceramics layer 5, there are one permanent magnet 6, two permanent magnets for the tail end setting of parallel overarm arm and vertical overarm arm
Polarity it is identical face-to-face, the first seismic mass is connected with the second seismic mass using parallel circuit mode, in seismic mass be spaced setting
There are multigroup parallel overarm arm and corresponding vertical overarm arm, the overarm arm in same seismic mass uses series circuit mode
Connection.
In use, overall structure is placed on ground, it is laid with, is spread along road driving direction in the way of in parallel
If when, the center of device is matched with the center of track, obtains maximum stress, scheme of installation is as shown in Fig. 2, seismic mass
On be provided with pressure plare 21, sealing ring 22 is provided between pressure plare and device.When the automobile on road surface by when, cause road surface
Vibrations, by the pushing to pressure plate surface, then make the spring deformation below seismic mass, and what is be arranged in the first seismic mass is outstanding
Beam arm stress shakes, and parallel overarm arm is directly subjected to displacement, and the permanent magnet in parallel overarm arm also produces displacement, to make magnetic
Power generates variation, and the piezoelectric ceramic piece in parallel overarm arm produces energy due to displacement, and corresponding another is vertical outstanding
Permanent magnet on beam arm generates displacement due to the variation of magnetic force, and the piezoelectric ceramic piece displacement being arranged in vertical overarm arm is made to produce
Raw energy.Concatenated piezoelectric energy-capturing structure also synchronizes above-mentioned movement in seismic mass, by this round-trip movement, to make overarm
Arm generates voltage, is exported by cascaded structure, then is converted by external parallel circuit circuit, and control acquisition is carried out by switch
The energy of harvest, circuit connection is as shown in figure 3,31 be the whole equivalent power supply of energy accumulator.It is allowed to deformation using external pressure,
By the deformation to piezoelectric ceramic piece, energy, the frequency of the distance controlling resonance of magnet are obtained.According to Newton's second law, base
The constitutive equation of your hoff's law and piezoelectric material show that the two-way overarm arm of in parallel one group of single piezoelectric harvester is electromechanical
Coupled wave equation：
In formula, M is equivalent mass, and C is equivalent damping, and K is equivalent stiffness, κcAnd κv, it is equivalent piezoelectric patches parameter, CP
It is the equivalent capacity of piezoelectric material, RLIndicate that the resistance of load, V are the voltage for loading both ends, X indicates the position of overarm arm end
It moves,WithIndicate the acceleration that two vibration sources generate, FRV1And FRV2Indicate that the vertical component size of two magnetic force, χ indicate
Be mechanical-electric coupling item.
By end magnets displacement and it is bistable under the conditions of obtained a magnetic force equation based on charge model：
Wherein, FRiIndicate the size of magnetic force, σmIt is charge density, B is the magnetic field generated by two magnet, and what s was indicated is
The corresponding surface area of two magnet.
The repulsive force and distance that magnet generates have certain relationship：When distance is
d1When, FR1Vertical direction magnetic force is FRV1；Distance is d2When, FR2Vertical direction magnetic force is FRV2。
Show that the equation of overarm arm coupling in parallel, process are by dimensionless transformation：
It enablesThen：
Wherein equivalent mechanical damping ratioLinear rigidityNon-linear rigidity Electromechanical coupling factorResistanceLength scale scalelcAnd lp
Represent the length of different overarm arms.
If exterior vibration is simple harmonic oscillation, can be replaced with f cos Ω tIt enables againIt can be with
Obtain the equation of overarm arm coupling in parallel：
Wherein, coupling variable is x5, due to the presence of coupling terms, make the effect of parallel piezoelectric energy accumulator than the pressure of non-parallel connection
Electric energy accumulator improves prisoner can efficiency.
Further, the piezoelectric harvester includes multigroup seismic mass.Multigroup seismic mass can be driven to shake when road shock
Prisoner's energy, the prisoner that can further enhance piezoelectric harvester can efficiency；
Further, the thickness of the piezoceramics layer and the ratio of overarm arm are 1.273, will obtain larger energy.
Further, the material of the piezoceramics layer is PVDF.It can bear the stress of bigger, it is not easy to it is broken, and due to
The fatigability of material, it is more preferable to fatigue resistance effect using this high molecular materials of PVDF for other materials.
Further, the material of the permanent magnet is neodymium.The magnetic force of neodymium is larger, can generate larger magnetic force, makes vertically outstanding
Beam arm is shaken, and multidirectional prisoner's energy is obtained.
Further, the length of spaced overarm arm is different in the same seismic mass.It is concatenated multiple and different
The overarm arm of length helps to improve prisoner's energy efficiency, and prisoner's energy efficiency also has a certain upgrade.
Further, it is provided on the permanent magnet and chooses the pressure sensor of overarm arm lengths for measuring external pressure
7.When practical application, different length is chosen by the output of the data to pressure sensor according to the shock conditions on different road surfaces
Overarm arm, help to widen frequency bandwidth, the frequency of environment made to be within the frequency bandwidth of cantilever beam.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of two-way series broadband piezoelectric harvester for parallel circuit that present pre-ferred embodiments provide, including multigroup shake
Motion block and the overarm arm being arranged in seismic mass, one group of seismic mass include the first seismic mass 1 and the second seismic mass 2, the first vibrations
It is respectively arranged with parallel overarm arm 3 and corresponding vertical overarm arm 4 on block and the second seismic mass, parallel overarm arm and vertical
It is both provided with piezoceramics layer 5 in overarm arm, the tail end setting of parallel overarm arm and vertical overarm arm is there are one permanent magnet 6, and two
The polarity of a permanent magnet is identical face-to-face, and the first seismic mass is connected with the second seismic mass using parallel circuit mode, in seismic mass
It is arranged at intervals with 2 groups of corresponding parallel overarm arm and vertical overarm arm, the overarm arm in same seismic mass uses series circuit
Mode connects.The material of piezoceramics layer is PVDF, and the material of permanent magnet is neodymium.
The arrangement mode structure of wherein seismic mass is as shown in Figure 4 and Figure 5：One long square column seismic mass is located at centre, respectively
Multiple vertical overarm arms are arranged in series on four sides of long square column seismic mass, four side surface directions are correspondingly arranged one respectively
Seismic mass surrounds a square, this four seismic mass are located at four angles of square, this four seismic mass are three sides
Overarm arm is set up, respectively along two side directions and diagonal at the angle of place square, equidirectional upper vibrations
Block corresponds to one group two-by-two, in one group of seismic mass overarm arm opposite on same level line be corresponding one group of parallel overarm arm and
Vertical overarm arm.When being installed on road surface, the vibrating mass of multiple identical square structural arrangements is installed in parallel successively, overall structure
Be placed at the 40mm of ground, be laid with along road driving direction in the way of in parallel, when laying, by the center of device with
The center of track matches, and obtains maximum stress.Fig. 6 is that whole prisoner can flow chart.
Embodiment 2
On the basis of embodiment 1, the overarm arm of lower section is more outstanding than top in concatenated 2 groups of overarm arms in same seismic mass
Beam arm is short, and the piezoelectric beam for multiple and different length of connecting helps to improve prisoner's energy efficiency, and the requirement of frequency bandwidth is more easily satisfied.
It is provided on permanent magnet and chooses the pressure sensor of overarm arm lengths for measuring external pressure, when practical application, according to not
The overarm arm of different length is chosen by the output of the data to pressure sensor with the shock conditions on road surface, helps to widen
Frequency bandwidth makes the frequency of environment be within the frequency bandwidth of cantilever beam.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of two-way series broadband piezoelectric harvester of parallel circuit, including one group of seismic mass are hanged with what is be arranged in seismic mass
Beam arm, which is characterized in that one group of seismic mass includes the first seismic mass (1) and the second seismic mass (2), and the first seismic mass and second shake
Parallel overarm arm (3) and corresponding vertical overarm arm (4) are respectively arranged on motion block, the parallel direction of parallel overarm arm
It is both provided with piezoceramics layer (5) on the upper surface of the vertical direction of upper surface and vertical overarm arm, parallel overarm arm and vertical
There are one permanent magnets (6) for the tail end setting of overarm arm, and the polarity of two permanent magnets is identical face-to-face, the first seismic mass and the second shake
Motion block is connected using parallel circuit mode.
2. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1, which is characterized in that described
It is arranged at intervals with multigroup corresponding parallel overarm arm and vertical overarm arm, same seismic mass in first seismic mass and the second seismic mass
On overarm arm connected using series circuit mode.
3. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1 or 2, which is characterized in that
The piezoelectric harvester includes multigroup seismic mass.
4. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1, which is characterized in that described
The thickness of piezoceramics layer and the ratio of overarm arm are 1.273.
5. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1, which is characterized in that described
The material of piezoceramics layer is PVDF.
6. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1, which is characterized in that described
The material of permanent magnet is neodymium.
7. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 2, which is characterized in that described
The length of spaced overarm arm is different in same seismic mass.
8. a kind of two-way series broadband piezoelectric harvester of parallel circuit according to claim 1, which is characterized in that described
It is provided on permanent magnet and chooses the pressure sensor (7) of overarm arm lengths for measuring external pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613017.2A CN108736763B (en) | 2018-06-14 | 2018-06-14 | Bidirectional series broadband piezoelectric energy harvester with parallel circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613017.2A CN108736763B (en) | 2018-06-14 | 2018-06-14 | Bidirectional series broadband piezoelectric energy harvester with parallel circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736763A true CN108736763A (en) | 2018-11-02 |
| CN108736763B CN108736763B (en) | 2020-02-14 |
Family
ID=63929645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810613017.2A Expired - Fee Related CN108736763B (en) | 2018-06-14 | 2018-06-14 | Bidirectional series broadband piezoelectric energy harvester with parallel circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108736763B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276236A (en) * | 2020-10-19 | 2021-01-29 | 浙大宁波理工学院 | Honing reamer |
Citations (11)
| 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 |
| CN103475265A (en) * | 2013-09-16 | 2013-12-25 | 天津大学 | Bistable double-piezoelectric cantilever beam vibration energy collector |
| CN104158436A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Road surface energy collection system |
| CN104242725A (en) * | 2013-06-13 | 2014-12-24 | 中国科学院上海微***与信息技术研究所 | Two-level vibrating type broadband energy harvester |
| CN104796037A (en) * | 2015-04-22 | 2015-07-22 | 北京工业大学 | Wideband piezoelectric power generating device |
| CN105226994A (en) * | 2015-10-27 | 2016-01-06 | 张文明 | Multifrequency coupled vibrations energy capture device |
| CN205622542U (en) * | 2016-03-17 | 2016-10-05 | 浙江工商大学 | Nonlinearity wide band piezoelectricity vibration energy harvester |
| CN106253746A (en) * | 2016-08-26 | 2016-12-21 | 合肥工业大学 | A kind of bistable state piezoelectric type multi-direction fluid energy collection device |
| CN107302323A (en) * | 2017-07-10 | 2017-10-27 | 天津大学 | Three-dimensional piezoelectric cantilever beam vibrational energy acquisition system |
| CN206922665U (en) * | 2017-06-15 | 2018-01-23 | 长春吉威新能源科技发展有限公司 | A kind of piezoelectric self electricity button cell |
| CN107733284A (en) * | 2017-11-14 | 2018-02-23 | 西安电子科技大学 | A kind of two-freedom piezoelectricity electromagnetic hybrid energy accumulator |
-
2018
- 2018-06-14 CN CN201810613017.2A patent/CN108736763B/en not_active Expired - Fee Related
Patent Citations (11)
| 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 |
| CN104242725A (en) * | 2013-06-13 | 2014-12-24 | 中国科学院上海微***与信息技术研究所 | Two-level vibrating type broadband energy harvester |
| CN103475265A (en) * | 2013-09-16 | 2013-12-25 | 天津大学 | Bistable double-piezoelectric cantilever beam vibration energy collector |
| CN104158436A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Road surface energy collection system |
| CN104796037A (en) * | 2015-04-22 | 2015-07-22 | 北京工业大学 | Wideband piezoelectric power generating device |
| CN105226994A (en) * | 2015-10-27 | 2016-01-06 | 张文明 | Multifrequency coupled vibrations energy capture device |
| CN205622542U (en) * | 2016-03-17 | 2016-10-05 | 浙江工商大学 | Nonlinearity wide band piezoelectricity vibration energy harvester |
| CN106253746A (en) * | 2016-08-26 | 2016-12-21 | 合肥工业大学 | A kind of bistable state piezoelectric type multi-direction fluid energy collection device |
| CN206922665U (en) * | 2017-06-15 | 2018-01-23 | 长春吉威新能源科技发展有限公司 | A kind of piezoelectric self electricity button cell |
| CN107302323A (en) * | 2017-07-10 | 2017-10-27 | 天津大学 | Three-dimensional piezoelectric cantilever beam vibrational energy acquisition system |
| CN107733284A (en) * | 2017-11-14 | 2018-02-23 | 西安电子科技大学 | A kind of two-freedom piezoelectricity electromagnetic hybrid energy accumulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276236A (en) * | 2020-10-19 | 2021-01-29 | 浙大宁波理工学院 | Honing reamer |
| CN112276236B (en) * | 2020-10-19 | 2021-09-14 | 浙大宁波理工学院 | Honing reamer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108736763B (en) | 2020-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications | |
| Todaro et al. | Piezoelectric MEMS vibrational energy harvesters: Advances and outlook | |
| Iqbal et al. | Vibration‐based piezoelectric, electromagnetic, and hybrid energy harvesters for microsystems applications: a contributed review | |
| Wang et al. | Acoustic energy harvesting by piezoelectric curved beams in the cavity of a sonic crystal | |
| Wei et al. | A comprehensive review on vibration energy harvesting: Modelling and realization | |
| Ahmad et al. | Review of vibration‐based electromagnetic–piezoelectric hybrid energy harvesters | |
| Bain et al. | Ferroelectrics: Principles and applications | |
| Siddique et al. | A comprehensive review on vibration based micro power generators using electromagnetic and piezoelectric transducer mechanisms | |
| CN102064745B (en) | Bistable piezoelectric cantilever beam vibrator device | |
| Chu et al. | Dual-stimulus magnetoelectric energy harvesting | |
| CN102170246B (en) | Vibrating type miniature wind driven generator with flexible beam structure | |
| Parinov et al. | Overview: state-of-the-art in the energy harvesting based on piezoelectric devices for last decade | |
| JP2015503218A (en) | Piezoelectric energy recovery device or actuator | |
| Wu et al. | Electrode shape dependence of the barbell-shaped magneto-mechano-electric energy harvester for low-frequency applications | |
| KR20100049730A (en) | Self-powered device using piezoelectric element | |
| CN108736763A (en) | A kind of two-way series broadband piezoelectric harvester of parallel circuit | |
| Elvin et al. | Introduction and methods of mechanical energy harvesting | |
| Alaei | Power enhancement in piezoelectric energy harvesting | |
| CN102983775A (en) | Electrostatic vibration energy collecting device driven by sphere | |
| Bindu et al. | Study of piezoelectric cantilever energy harvesters | |
| Lin et al. | Design of a hybrid piezoelectric-electromagnetic vibration power generator | |
| Andò et al. | Preliminary investigation of an inductive bistable energy harvester | |
| KR102141074B1 (en) | Piezoelectric energy harvester arranged in a magnetic coupling having a wide operating frequency range | |
| Rao et al. | Assessment and evaluation of energy scavenging circuits using MFC | |
| Upadrashta | Design, modeling, and optimization of nonlinear piezoelectric energy harvesters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |