CN108429489A - Vibration of building energy collecting device - Google Patents
Vibration of building energy collecting device Download PDFInfo
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- CN108429489A CN108429489A CN201810496182.4A CN201810496182A CN108429489A CN 108429489 A CN108429489 A CN 108429489A CN 201810496182 A CN201810496182 A CN 201810496182A CN 108429489 A CN108429489 A CN 108429489A
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- mounting base
- sleeve
- vibration
- film
- foundation structure
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- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 7
- 229920001721 polyimide Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002305 electric material Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H02N2/186—Vibration harvesters
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of vibration of building energy collecting devices, including：Foundation structure and the component being connected with foundation structure, it is respectively arranged with mounting plate on foundation structure and component, it is provided with mounting base on the mounting plate of foundation structure, mounting base upper end opening, lower end is fixedly connected on the mounting plate of foundation structure, in the inside of mounting base, it is provided with the sleeve concentric with mounting base, the upper end opening direction of sleeve is identical as the upper end opening direction of mounting base, it lower end can be relative to foundation structure activity, axis is fixedly mounted on the mounting plate of component, the mobilizable insertion sleeve of axis, and it can be moved up and down relative to sleeve, padded coaming is filled between mounting base and sleeve, one or more piezoelectric film-type elements are embedded in padded coaming.The present invention can be applied to the buildings such as common skyscraper, bridge, road, efficient to collect and convert the vibrational energy in building, and have many advantages, such as that reliability is high, durability is good.
Description
Technical field
The present invention relates to a kind of vibration of building energy collecting device, specifically a kind of buildings using piezoelectric element
Object energy gathering apparatus.
Background technology
The energy is the important substance basis that human society is depended on for existence and development, is the lifeblood of the national economic development.It makes a general survey of
The energy history of the mankind, countries in the world all experienced firewood period, fossil energy period, and when will gradually develop to regenerative resource
Phase.Initial in human development history to be in firewood period in thousands of years, the energy is mainly based on biomass energy；18th century mid-term,
With the development of science and technology, the expansion of high-quality energy demand, the raising of fossil energy mining level, the mankind are gradually transitioned into
Fossil energy period based on coal, oil, the relatively inexpensive process for promoting scientific and technological revolution to a certain extent of the energy with
And the economic development of industrialized country；However fossil energy belongs to non-regeneration energy, although fossil energy is minable specific
There has been no unified final conclusions for the time limit, but its expected exhaustion has been common recognition, and energy resource structure is turned to from non-regeneration energy can be again
The adjustment of the raw energy is the trend of mankind's energy resource structure development.Global primary energy is to be contemplated that based on the fossil energy of exhaustion
Energy supply present situation, an urgent demand accelerate the development of regenerative resource.Regenerative resource can be constantly replenished from environment
Or it can again be generated in compared with short cycle；A large amount of reproducible environmental energies are widely present in the physical environment of human survival, such as
Wind energy, water energy, solar energy, biomass energy etc..Compared with fossil energy, reproducible environmental energy is collected and is utilized,
More meet the requirement of sustainable development.
With the propulsion of Process of Urbanization Construction, high-rise building, bridge, road etc. are more and more intensive, in these buildings, by
In the effect of wind-force or the traveling etc. of vehicle, small vibration all at every moment is occurring, these vibrations constitute us
Environmental energy at one's side.These environmental energies are collected, stored, are utilized, alleviating energy crisis is contributed to, help to build
The modernized society of green.
The current common method using vibrational energy in environment is that piezoelectric material is layed in road surface structure, profit
It can convert some mechanical that traffic loading on road generates to electric energy with piezoelectric effect, then by the electricity collection of generation, place
Reason utilizes.Since Curie brother has found piezoelectric effect so far, by 100 years of researches accumulation, for piezoelectric material performance and
Application study has reached its maturity.Due to its excellent energy transfer capability, piezoelectric energy collection system receives global scientific research machine
The common concern of structure and enterprise.2008, INNOWATTECH companies and the Institute of Technology of Haifa of Israel had developed application jointly
In the piezoelectric energy collection system of road engineering.However, the technology is still in the external secrecy stage, cannot be carried to Chinese research person
For directly referring to.Meanwhile the technology can be only applied to the vibration energy harvesting on traffic route road surface, it cannot be in skyscraper, bridge
The broader range such as beam carries out the collection of ambient vibration energy, has certain limitation.
Invention content
The technical problem to be solved by the present invention is to：In view of the defects existing in the prior art, a kind of vibration of building energy is provided
Collection device is measured, specifically a kind of vibration of building energy collecting device using piezoelectric element can be widely applied
In buildings such as common skyscraper, bridge, roads, the vibrational energy in building efficiently can be collected and convert, and
And have many advantages, such as that reliability is high, durability is good.
Used technical solution is as follows to solve above-mentioned technical problem by the present invention：
Vibration of building energy collecting device provided by the invention, including：Foundation structure and it is connected with foundation structure
It is fixedly installed mounting plate respectively on component, foundation structure and component, installation is fixedly installed on the mounting plate of foundation structure
Seat, mounting base upper end opening, lower end is fixedly connected on the mounting plate of foundation structure, in the inside of mounting base, is provided with and installs
The concentric sleeve of seat, the upper end opening direction of sleeve is identical as the upper end opening direction of mounting base, and lower end can be tied relative to basis
Structure activity, is fixedly mounted axis on the mounting plate of component, insertion sleeve in the mobilizable upper end opening from sleeve of axis, and can phase
Sleeve is moved up and down, between mounting base and sleeve be filled with padded coaming, in padded coaming bury there are one or it is more
A piezoelectric film-type element, piezoelectric film-type element are connected by conducting wire with rectification circuit and energy-storage module.
The piezoelectric film-type element is layer structure, and layered structure includes one layer of polyvinylidene difluoride film as pressure
Electric material, the polyvinylidene difluoride film are fitted to by one layer of Ni-based conductive film on one layer of polyimide matrix film,
The polyvinylidene difluoride film and the respective outside of polyimide matrix film are also bonded one layer of Ni-based conductive thin respectively
Film, the piezoelectric film-type element are arranged to certain radian.
The piezoelectric film-type element is layered on top of each other by multiple layer structures and is constituted together.
Between mounting base and sleeve, the reinforcing plate spaced apart for being additionally provided with one or more layers, the reinforcing plate
It is arranged concentrically with mounting base.
It is provided with multigroup piezoelectric film-type element, also, multigroup piezoelectric film-type element in the radial direction in mounting base
It is staggeredly spaced setting with the reinforcing plate of multilayer.
Mounting base, sleeve and the reinforcing plate is made of structural steel；The inner surface that mounting base is contacted with padded coaming,
And the outer surface that sleeve is contacted with padded coaming is roughened；Padded coaming passes through high temperature vulcanized processing and installation
The inner surface of seat is connected with the outer surface of sleeve.
Compared with prior art, the present invention having advantageous effect below：1. the vibration of building collection of energy of the present invention
Apparatus structure is simple, versatile, can be widely used in the buildings such as common skyscraper, bridge, road, Neng Gougao
Vibrational energy in the collection and conversion building of effect.2. the energy gathering apparatus of traditional piezoelectric effect utilizes road more
The upper and lower pressure that vehicle generates on surface, bearing pressure by piezoelectric element makes oscillator be deformed to generate electric current, outside
Boundary's pressure is excessive, when being more than the tolerance range of piezoelectric vibrator, piezoelectric vibrator can be made to generate permanent damage, system is caused to lose
Effect.By piezoelectric film-type element flexible as in the padded coaming with protective effect in the present apparatus, can either induction vibration,
It is deformed to generate electric current, and can be damaged to avoid piezoelectric element, improve the reliability of system, durability is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of vibration of building energy collecting device of the present invention.
Fig. 2 is vibration of building energy collecting device in Fig. 1 along the sectional view of line A-A.
Fig. 3 is the structural schematic diagram of piezoelectric film-type element in the present invention.
Fig. 4 is the operation principle schematic diagram of energy gathering apparatus in the present invention.
Specific implementation mode
Further description and explanation are made to the present invention with reference to embodiment and attached drawing, but protected not as to the present invention
Protect the limitation of range.
As depicted in figs. 1 and 2, vibration of building energy collecting device of the invention includes：Foundation structure 1 and with basis tie
The component 2 that structure 1 is connected.The vibration of building energy collecting device of the present invention is particularly suitable for mounting at different component in building
The position being connected, such as the junction of skyscraper component, bridge member junction.It is fixedly installed on foundation structure 1
There is mounting plate 3, mounting plate 4 is fixedly installed on the component 2 being connected with foundation structure 1.It is fixedly installed on mounting plate 3
Mounting base 5, in the present embodiment, mounting base 5 are arranged to the cylindrical shape of upper end opening, and 5 lower end of mounting base is fixedly connected on peace
Loading board 3.Other than cylindrical shape, mounting base 5 can also be other shapes, for example, the square tube of upper end opening, oval cylinder or
Person's polygon cylinder etc..In the inside of mounting base 5, it is provided with the sleeve 6 concentric with mounting base 5.It is columnar feelings in mounting base 5
Under condition, sleeve 6 is the cylindrical sleeve concentric with mounting base 5.The upper end opening in the upper end opening direction and mounting base 5 of sleeve 6
Direction is identical, and lower ending opening can be relative to 3 activity of foundation structure 1 and mounting plate.Component 2 mounting plate 4 with foundation structure 1
3 corresponding one side of mounting plate on, be installed with axis 7, the mobilizable insertion sleeve from the upper end opening of sleeve 6 of axis 7
6, axis 7 can be moved up and down relative to sleeve 6, while its depth being inserted into also can guarantee the connection of both foundation structure 1 and component 2
It is required that the two is made not to be separated from each other.In order to ensure the structural strength of building junction, above-mentioned component-mounted boards 3, mounting plate
4, mounting base 5, sleeve 6 and axis 7 are made of the material with some strength, for example, the knot by meeting Building Structure Strength requirement
Structure Steel material is made.
Padded coaming 8 is filled between mounting base 5 and sleeve 6, to form buffer structure in junction.Padded coaming 8
It can be from being selected in common padded coaming in building field, the present invention is not particularly limited this.Meanwhile in order to ensure to connect
The connection reliability at place, the appearance that the inner surface and sleeve 6 that mounting base 5 is contacted with padded coaming 8 are contacted with padded coaming 8
Face is roughened.The outer surface that padded coaming 8 passes through high temperature vulcanized processing and the inner surface and sleeve 6 of mounting base 5
It is connected.In addition, between mounting base 5 and sleeve 6, the reinforcing plate 9 spaced apart for being additionally provided with one or more layers.Reinforce
Plate 9 can be made of the material with certain rigidity and intensity, for example, structural steel and iron.By the way that reinforcing plate 9 is arranged, can enhance
The rigidity of padded coaming 8 so that connection structure of the invention is kept necessary with certain flexibility and while effectiveness in vibration suppression
Rigidity and bonding strength, to optimize the building connection structure of the present invention.Reinforcing plate 9 could be provided as concentric with mounting base 5
One or more layers, be in mounting base 5 it is columnar, reinforcing plate 9 could be provided as concentric with mounting base 5 one layer or
Multi-layer cylinder shape.
In order to collect the vibration that building is generated in junction, padded coaming of the present invention between mounting base 5 and sleeve 6
It is embedded with one or more piezoelectric elements 10 in 8, and therefrom draws for conductive conducting wire (not shown), conducting wire and necessity
Rectification circuit be connected with energy-storage module, for on building electricity consumption device or other electricity consumption device power supply.At this
In invention, piezoelectric element 10 is made of piezoelectric film-type element 10 flexible, and piezoelectric film-type element 10 includes multilayered structure.It will press
When conductive film element 10 is arranged in the padded coaming 8 between mounting base 5 and sleeve 6 so that the thickness of piezoelectric film-type element 10
Direction is consistent with the radial direction of mounting base 5, correspondingly, its width direction and length direction the axial direction side with mounting base 5 respectively
To consistent with circumferencial direction.When in order to make full use of building junction to generate vibration, generated everywhere in padded coaming 8
Vibration, the present invention are provided with multigroup piezoelectric film-type element 10 in the radial direction mounting base 5.Also, these multigroup piezoelectricity are thin
Membrane component 10 and the reinforcing plate 9 of multilayer are staggeredly spaced setting.Meanwhile it shaking to further make full use of building junction to generate
When dynamic, the vibration generated everywhere in padded coaming 8, the present invention is again provided with multigroup pressure on the circumferencial direction of mounting base 5
Conductive film element 10.Also, these multigroup piezoelectric film-type elements 10 are uniformly distributed setting along the circumferencial direction of mounting base 5.
With reference to Fig. 3, the structure of the piezoelectric film-type element 10 of the present invention is illustrated.The direction of observation of Fig. 3 and Fig. 2's
It is identical.In figure 3, piezoelectric film-type element 10 of the invention is layer structure, including one layer of polyvinylidene difluoride film 101 as pressure
Electric material, polyvinylidene difluoride film 101 fit to one layer of polyimide matrix film 102 by one layer of Ni-based conductive film 103
On.The polyimide matrix film 102 has been pre-arranged certain radian, when polyvinylidene difluoride film 101 is bonded to polyamides
When on imine matrix film 102, also by the passive identical radian of holding.In polyvinylidene difluoride film 101 and polyimide matrix
102 respective outside of film is also bonded one layer of Ni-based conductive film 103 respectively, is used as conductive and other piezoelectric film-type element knots
It is used when conjunction.Power in order to improve piezoelectric element output in practical applications can be by multiple above-mentioned piezoelectric film-type elements
10 uses stacked together, this is equivalent to multiple power sources in parallel together, improves output power.
With reference to Fig. 4, illustrate the operation principle of the present invention.It is used in the vibration of building energy collecting device of the present invention
When, due to the vibration of building junction, cause inbuilt one or more piezoelectric element 10 in padded coaming 8 to vibrate, thus
Electric current is generated, piezoelectric element 10 is connected with necessary rectification circuit and energy-storage module, for the electrical appliance on building
Part or other electricity consumption device power supplies.
Piezoelectric film-type element 10 is embedded in the padded coaming 8 of building junction by the present invention, and uses special peace
Fill the structure of seat 5 and sleeve 6 so that piezoelectric element 10 can either induction vibration, be deformed to generate electric current, and can be to avoid
Piezoelectric element 10 damages, and improves the reliability of system, durability is good.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of vibration of building energy collecting device, including：Foundation structure (1) and the component being connected with foundation structure (1)
(2), it is fixedly installed mounting plate (3,4) respectively on foundation structure (1) and component (2), the mounting plate (3) in foundation structure (1)
On be fixedly installed mounting base (5), mounting base (5) upper end opening, lower end is fixedly connected on the mounting plate (3) of foundation structure (1),
Inside in mounting base (5) is provided with the sleeve (6) concentric with mounting base (5), upper end opening direction and the installation of sleeve (6)
The upper end opening direction of seat (5) is identical, and lower end can be solid on the mounting plate (4) of component (2) relative to foundation structure (1) activity
Determine installation axle (7), mobilizable insertion sleeve (6) from the upper end opening of sleeve (6) of axis (7), and can be relative on sleeve (6)
Lower movement, between mounting base (5) and sleeve (6) be filled with padded coaming (8), in padded coaming (8) bury there are one or
Multiple piezoelectric film-type elements (10), piezoelectric film-type element (10) are connected by conducting wire with rectification circuit and energy-storage module.
2. a kind of vibration of building energy collecting device as described in claim 1, it is characterised in that：The piezoelectric membrane member
Part (10) is layer structure, and layered structure includes that one layer of polyvinylidene difluoride film (101) is used as piezoelectric material, described poly- inclined
Fluoroethylene film (101) is fitted to by one layer of Ni-based conductive film (103) on one layer of polyimide matrix film (102),
The polyvinylidene difluoride film (101) and the polyimide matrix film (102) respective outside, also one layer of fitting is Ni-based respectively
Conductive film (103), the piezoelectric film-type element (10) is arranged to certain radian.
3. a kind of vibration of building energy collecting device as claimed in claim 2, it is characterised in that：The piezoelectric membrane member
Part (10) is layered on top of each other by multiple layer structures and is constituted together.
4. a kind of vibration of building energy collecting device as described in claim 1, it is characterised in that：In mounting base (5) and set
Between cylinder (6), the reinforcing plate (9) spaced apart for being additionally provided with one or more layers, the reinforcing plate (9) and mounting base (5)
It is arranged concentrically.
5. a kind of vibration of building energy collecting device as described in claim 2 or 4, it is characterised in that：In mounting base (5)
Be provided with multigroup piezoelectric film-type element (10) in the radial direction, also, multigroup piezoelectric film-type element (10) and multilayer plus
Strong plate (9) is staggeredly spaced setting.
6. a kind of vibration of building energy collecting device as described in claim 2 or 4, it is characterised in that：The mounting base
(5), sleeve (6) and reinforcing plate (9) are made of structural steel；The inner surface that mounting base (5) is contacted with padded coaming (8), and
The outer surface that sleeve (6) is contacted with padded coaming (8) is roughened；Padded coaming (8) passes through high temperature vulcanized processing
It is connected with the outer surface of the inner surface of mounting base (5) and sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496182.4A CN108429489B (en) | 2018-05-22 | 2018-05-22 | Building vibration energy collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496182.4A CN108429489B (en) | 2018-05-22 | 2018-05-22 | Building vibration energy collecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108429489A true CN108429489A (en) | 2018-08-21 |
| CN108429489B CN108429489B (en) | 2024-01-23 |
Family
ID=63163857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810496182.4A Active CN108429489B (en) | 2018-05-22 | 2018-05-22 | Building vibration energy collecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108429489B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079536A (en) * | 2018-09-29 | 2018-12-25 | 湖南南方通用航空发动机有限公司 | A kind of Thin-Wall Outer Casing vibration damping tooling |
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| CN103199736A (en) * | 2012-01-09 | 2013-07-10 | 中国科学院上海硅酸盐研究所 | Composite structure piezoelectric energy collector driven by cantilever |
| JP2014011858A (en) * | 2012-06-28 | 2014-01-20 | Kazuto Sedo | Vibration power generating device |
| CN104022686A (en) * | 2014-06-16 | 2014-09-03 | 金陵科技学院 | Impact type piezoelectric vibration energy collecting device |
| CN205681336U (en) * | 2016-06-15 | 2016-11-09 | 浙江师范大学 | A kind of piezo fluid generator |
| CN106230312A (en) * | 2016-08-30 | 2016-12-14 | 长安大学 | A kind of based on the road machine energy collecting device improving electromechanical effect |
| CN107769614A (en) * | 2017-11-02 | 2018-03-06 | 安徽理工大学 | A kind of multi-direction vibrational energy harvester of piezoelectric type |
| CN208143114U (en) * | 2018-05-22 | 2018-11-23 | 北京中微融通科技有限公司 | Vibration of building energy collecting device |
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2018
- 2018-05-22 CN CN201810496182.4A patent/CN108429489B/en active Active
Patent Citations (8)
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|---|---|---|---|---|
| US20080074002A1 (en) * | 2006-09-26 | 2008-03-27 | Shashank Priya | Piezoelectric energy harvester |
| CN103199736A (en) * | 2012-01-09 | 2013-07-10 | 中国科学院上海硅酸盐研究所 | Composite structure piezoelectric energy collector driven by cantilever |
| JP2014011858A (en) * | 2012-06-28 | 2014-01-20 | Kazuto Sedo | Vibration power generating device |
| CN104022686A (en) * | 2014-06-16 | 2014-09-03 | 金陵科技学院 | Impact type piezoelectric vibration energy collecting device |
| CN205681336U (en) * | 2016-06-15 | 2016-11-09 | 浙江师范大学 | A kind of piezo fluid generator |
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| CN108429489B (en) | 2024-01-23 |
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