CN110359367A - A kind of road piezo-electric generating deceleration strip - Google Patents
A kind of road piezo-electric generating deceleration strip Download PDFInfo
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- CN110359367A CN110359367A CN201910193035.4A CN201910193035A CN110359367A CN 110359367 A CN110359367 A CN 110359367A CN 201910193035 A CN201910193035 A CN 201910193035A CN 110359367 A CN110359367 A CN 110359367A
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- shearing
- pressure cap
- pedestal
- cavity
- bottom plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention provides a kind of road piezo-electric generating deceleration strips, including pedestal, the cavity of open-top is provided in pedestal, the open top of cavity is provided with pressure cap, it is provided with floatable pallet in cavity below the pressure cap, one layer or more of d is provided between floatable pallet and pressure cap33Piezoelectric energy-capturing piece；Pressure cap vertically pushes so that d33Piezoelectric energy-capturing piece is squeezed power generation；It is axially provided with cantilever support plate on the vertical inner wall of the cavity, is laid with d respectively along axial restraint on the intracorporal pedestal of chamber below the cantilever support plate15Piezoelectric energy-capturing piece；Support bar, cantilever support plate and d15The open shearing chamber of a laterally inboard is formed between piezoelectric energy-capturing piece；Floatable tray bottom center is equipped with force transmission mechanism in the cavity；Pressure cap vertically pushes force transmission mechanism, so that the first shearing bottom plate and the second shearing bottom plate move and d to both lateral sides15The contact of piezoelectric energy-capturing piece generates shearing force power generation.
Description
Technical field
The invention belongs to field of road, are related to piezoelectric energy-conversion technology, and in particular to a kind of road piezo-electric generating slows down
Band.
Background technique
Deceleration strip is generally located in highway road junction, industrial and mining enterprises, school, residential quarters etc. and vehicle deceleration is needed to go slowly or easily draw
Traffic accident section is sent out, is the traffic Special safety facility for reducing running speed.Deceleration strip plays what decelerating effect generated
Mechanical vibrational energy is considerable, and energy loss is also relatively serious, if can be converted to mechanical vibrational energy using piezo-electric generating technology
Electric energy then can effectively avoid energy excessive loss, and is applied to road surface deceleration strip about piezo-electric generating technology at present and rarely has research.
Therefore, the road simple for production, that structure is reliable, durable stability is good, power photoelectric transformation efficiency is high of one kind is designed to be slowed down with piezo-electric generating
With necessary.
Summary of the invention
In view of the above shortcomings of the prior art with defect, the purpose of the present invention is to provide a kind of road piezo-electric generatings to slow down
Band solves the technical problem that existing deceleration strip piezoelectric energy-conversion mode is single and complicated in mechanical structure, energy utilization rate are low.
A kind of road piezo-electric generating deceleration strip, including pedestal, be provided with the cavity of open-top in pedestal, and cavity is open
Top is provided with pressure cap, and pressure cap is vertically being capable of elevating movement relative to pedestal；
It is provided with floatable pallet in cavity below the pressure cap, is provided between floatable pallet and pressure cap
One layer or more of d33Piezoelectric energy-capturing piece；Pressure cap vertically pushes so that d33Piezoelectric energy-capturing piece is squeezed power generation；
It is axially provided with cantilever support plate on the vertical inner wall of the cavity, is equipped on cantilever support plate multiple perpendicular
To the bottom end of reset spring, the top of multiple vertical reset springs is uniformly mounted on floating tray bottom at marginal position；
It is axially provided with support bar below cantilever support plate immediately below the vertical reset spring, support bar
Top is contacted with the bottom of cantilever support plate, the bottom end of support bar and base contacts, the lateral outer side of support bar and erecting for cavity
Inward wall contact；
D is laid with respectively along axial restraint on the intracorporal pedestal of chamber below the cantilever support plate15Piezoelectric energy-capturing
Piece；Support bar, cantilever support plate and d15The open shearing chamber of a laterally inboard is formed between piezoelectric energy-capturing piece；
Floatable tray bottom center is equipped with force transmission mechanism in the cavity；The force transmission mechanism include with
The connected hinged seat in floatable tray bottom is hinged with the top of the first transmission side plate and the top of the second transmission side plate on hinged seat
End；More than one, which is provided with, between the first transmission side plate and the second transmission side plate being oppositely arranged laterally resets contraction spring；The
The bottom end of one transmission side plate and the inside of the first shearing bottom plate are hinged, and the bottom end of the second transmission side plate is interior with the second shearing bottom plate
Side is hinged；
It is respectively protruding on the outside of the outside of the first shearing bottom plate and the second shearing bottom plate to the shearing of both lateral sides
Intracavitary, the vertical thickness of the vertical thickness of the first shearing bottom plate and the second shearing bottom plate is equal with the shearing vertical thickness of chamber,
So that first shearing bottom base plate and second shearing bottom plate bottom respectively with d15The top surface of piezoelectric energy-capturing piece contacts, and pressure cap is perpendicular
It is pressed downward force transmission mechanism, so that the first shearing bottom plate and the second shearing bottom plate move and d to both lateral sides15The contact of piezoelectric energy-capturing piece
Generate shearing force power generation.
The present invention also has following technical characteristic:
The base top is provided with limiter, and pressure cap is mounted in limiter, and limiter is for limiting pressure cap
In vertical highest stroke.
Limited support column is provided on cantilever support plate inside the vertical reset spring, limited support column is for limiting
Pressure cap processed is in vertical minimum stroke.
The first shearing bottom plate and the second shearing bottom base plate is respectively arranged with roller bearing close to the part of chamber central,
Roller bearing is matched with the roller bearing pedestal being mounted in cavity interior base.
The roller bearing pedestal and d15Piezoelectric energy-capturing piece is laterally laid in same plane.
The outer diameter of the vertical reset spring is less than or equal to the transverse width of support bar.
The pedestal is elastic base.It is made of rubber material.
The limiter is mounted on the base by high-strength bolt and gasket, and the pedestal is installed by plain bolt
On road surface.
Compared with prior art, the present invention beneficial has the technical effect that
(I) single piezoelectricity mode has been abandoned with piezo-electric generating deceleration strip in road of the present invention, using based on d15And d33Two kinds change
The piezoelectric generating device of energy mode.Gravitional force by automobile Jing Guo deceleration strip reduction and since the kinetic energy of friction impact dissipation leads to
It crosses deceleration strip and is converted into green energy, and substantially increase piezoelectric energy-capturing unit power-photoelectric transformation efficiency, subtract road with piezo-electric generating
Speed belt plays maximum effect.
(II) each deceleration tape cell is divided into the rubber bullet that three parts i.e. both ends have buffering and carrying effect by the present invention
Property support base and intermediate based on d15And d33The piezoelectric generating device of two kinds of transducing modes, it is ensured that entire deceleration strip is in vehicle
Maximum effect is played under the action of load.
(III) of the invention by d15Prisoner can unit and d33Prisoner's energy unit is effectively linked by mechanical-force-transmission device.
(IV) each piezoelectric patches of the invention it is approximate rectangular and using the double-deck setting thus piezoelectric patches it is large number of, generated energy
Greatly.
(V) piezoelectric generating device simple structure of the invention, is readily produced, and it is convenient to turn power, force transmission mechanism, mechanical energy loss
It loses less, utilizes load to the greatest extent.
(VI) road of the invention is divided into several deceleration tape cells with piezo-electric generating deceleration strip and can be spread according to vehicle driving trace
If avoiding the wasting of resources, facilitates maintenance with time-division elements laying, various use conditions can be met.
Detailed description of the invention
Fig. 1 is the vertical section structural schematic diagram of deceleration strip of the invention.
Fig. 2 is the structural schematic diagram of force transmission mechanism of the invention.
Fig. 3 is the structural scheme of mechanism of roller bearing of the invention.
Fig. 4 is to be abound with d33The floatable schematic diagram of the tray top view of piezoelectric energy-capturing piece.
Fig. 5 is the layout position illustration of vertical reset spring of the invention.
Fig. 6 is the splicing schematic diagram of two pieces of deceleration strips axially.
Fig. 7 is piezoelectric material power-electricity translative mode schematic diagram.
The meaning of each label in figure are as follows: 1- pedestal, 2- cavity, 3- pressure cap, 4- floatable pallet, 5-d33Piezoelectric energy-capturing
Piece, 6- cantilever support plate, 7- plain bolt, the vertical reset spring of 8-, 9- support bar, 10-d15Piezoelectric energy-capturing piece, 11- shearing
Chamber, 12- force transmission mechanism, 13- limiter, 14- limited support column, 15- roller bearing, 16 roller bearing pedestals, 17- high-strength bolt, 18- pad
Piece, 19- conductive sheet, 20- conducting wire；
1201- hinged seat, 1202- first are driven side plate, and 1203- second is driven side plate, and 1204- laterally resets and shrinks bullet
Spring, 1205- first shear bottom plate, and 1206- second shears bottom plate.
Explanation is further explained in detail to particular content of the invention below in conjunction with drawings and examples.
Specific embodiment
It should be understood that d33Piezoelectric energy-capturing piece uses d33The piezo-electric generating piece of transducing mode, d15Piezoelectric energy-capturing piece is
Using d15The piezo-electric generating piece of transducing mode is known commercial product.d15And d33Transducing mode refers to: Mou Xie electricity
Medium when being deformed in a certain direction by external force, inside can generate polarization phenomena, while in its two phases
To occurring positive and negative opposite charge on surface.After external force is removed, it can be restored to uncharged state again, and this mechanical energy turns
The phenomenon that turning to electric energy referred to as direct piezoelectric effect.
The difference that characteristic is generated according to piezoelectric material charge, as shown in fig. 7, can be by the power of direct piezoelectric effect-electricity modulus of conversion
Formula is divided into three types:
(A)d31Mode applies directed force F along the direction electric axis x, generates charge in the plane vertical with optical axis z；
(B)d33Mode applies directed force F along the direction optical axis z, generates charge in the plane vertical with optical axis z；
(C)d15Mode applies shearing force F along the direction f, generates charge in the plane vertical with electric axis x.
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
Embodiment:
In compliance with the above technical solution, the present embodiment provides a kind of road piezo-electric generating deceleration strip, as shown in Figures 1 to 6, packet
Pedestal 1 is included, the cavity 2 of open-top is provided in pedestal 1, the open top of cavity 2 is provided with pressure cap 3, and pressure cap 3 is perpendicular
To being capable of elevating movement relative to pedestal 1；
It is provided with floatable pallet 4 in the cavity 2 of 3 lower section of pressure cap, is provided between floatable pallet 4 and pressure cap 3
One layer or more of d33Piezoelectric energy-capturing piece 5；Pressure cap 3 vertically pushes so that d33Piezoelectric energy-capturing piece 5 is squeezed power generation；
It is axially provided with cantilever support plate 6 on the vertical inner wall of cavity 2, is equipped on cantilever support plate 6 multiple vertical
The bottom end of reset spring 8, the top of multiple vertical reset springs 8 are uniformly mounted on 4 bottom of floating pallet at marginal position；
6 lower section of cantilever support plate immediately below vertical reset spring 8 is axially provided with support bar 9, the top of support bar 9
End is contacted with the bottom of cantilever support plate 6, and the bottom end of support bar 9 is contacted with pedestal 1, lateral outer side and the cavity 2 of support bar 9
Vertical inner wall contact；
D is laid with respectively along axial restraint on pedestal 1 in the cavity 2 of 6 lower section of cantilever support plate15Piezoelectric energy-capturing piece
10；Support bar 9, cantilever support plate 6 and d15The open shearing chamber 11 of a laterally inboard is formed between piezoelectric energy-capturing piece 10；
4 bottom centre position of floatable pallet is equipped with force transmission mechanism 12 in cavity 2；Force transmission mechanism 12 includes and floatable
The connected hinged seat 1201 in 4 bottom of pallet is hinged with top and the second transmission of the first transmission side plate 1202 on hinged seat 1201
The top of side plate 1203；More than one is provided between the first transmission side plate 1202 and the second transmission side plate 1203 being oppositely arranged
Laterally reset contraction spring 1204；The bottom end of first transmission side plate 1202 and the inside of the first shearing bottom plate 1205 are hinged, and second
The bottom end for being driven side plate 1203 and the inside of the second shearing bottom plate 1206 are hinged；
The outside of first shearing bottom plate 1205 and the outside of the second shearing bottom plate 1206 are respectively protruding into cutting to both lateral sides
Cut in chamber 11, the vertical thickness of the vertical thickness of the first shearing bottom plate 1205 and the second shearing bottom plate 1206 with shearing chamber 11
Vertical thickness is equal so that the bottom of the first shearing bottom plate 1205 and the bottom of the second shearing bottom plate 1206 respectively with d15Piezoelectricity prisoner
The top surface contact of energy piece 10, pressure cap 3 vertically push force transmission mechanism 12, so that the first shearing bottom plate 1206 and second shears bottom plate
1206 move and d to both lateral sides15The contact of piezoelectric energy-capturing piece 10 generates shearing force power generation.
In the present embodiment, support bar 9 is to be in close contact with the contact of cantilever support plate 6, pedestal 1 and cavity 2, plays knot
Real supporting role.First shearing bottom plate 1205 and second shearing bottom plate 1206 and d15The contact of piezoelectric energy-capturing piece 10 is also tight
Contiguity touching, convenient for shearing stress.
As a kind of preferred embodiment of the present embodiment, limiter 13 is provided at the top of pedestal 1, pressure cap 3 is mounted on limit
In device 13, limiter 13 is for limiting pressure cap 3 in vertical highest stroke.Cantilever support plate 6 inside vertical reset spring 8
On be provided with limited support column 14, limited support column 14 is for limiting pressure cap 3 in vertical minimum stroke.Pressure cap 3 is most
High-stroke and minimum stroke are limited respectively, when pressure cap 3 receives pressure, are moved and are resetted in stroke range.Limiter 13
Agree with about 3 pressure-bearing cover board, limiter 13 can prevent 3 front and back tilting of pressure cap and prevent from making in vertical reset spring 8
Normal reset is unable to lower pressure cap 3；
As a kind of preferred embodiment of the present embodiment, the bottom of the first shearing bottom plate 1205 and the second shearing bottom plate 1206 is leaned on
The part of nearly chamber central is respectively arranged with roller bearing 15, and roller bearing 15 matches with the roller bearing pedestal 16 being mounted in 2 interior base 1 of cavity
It closes.The setting of roller bearing 15 is moved to both lateral sides respectively convenient for the first shearing bottom plate 1205 and the second shearing bottom plate 1206, roller bearing
15 main function is that sliding friction is become rolling friction, reduces the energy loss in motion process to the greatest extent.Preferably, roller bearing
Pedestal 16 and d15Piezoelectric energy-capturing piece 10 is laterally laid in same plane.Convenient for the first shearing bottom plate 1205 and the second shearing bottom plate
1206 lateral shear d15Piezoelectric energy-capturing piece 10.
As a kind of preferred embodiment of the present embodiment, the outer diameter of vertical reset spring 8 is less than or equal to the laterally wide of support bar 9
Degree.Item 9 easy to support can support vertical reset spring 8 completely, it is ensured that cantilever support plate 6 will not be sent out in the long-term use
Change shape, guarantees the first shearing bottom plate 1205 and the second shearing bottom plate 1206 and d15The close contact of piezoelectric energy-capturing piece 10.
As a kind of preferred embodiment of the present embodiment, pedestal 1 is elastic base, is made of rubber material.Caoutchouc elasticity
1 main function of support base is to swell to smoothly transit wheel load and play the role of support wheel using arc.
As a kind of preferred embodiment of the present embodiment, limiter 13 is mounted on pedestal 1 by high-strength bolt 17 and gasket 18
On, pedestal 1 is mounted on road surface by plain bolt 7.
In the present embodiment, pressure cap 3 passes through epoxy resin adhesive and d33The upper surface of piezoelectric energy-capturing piece 5 is cementing, d33Pressure
Electricity prisoner can piece 5 be abound on floatable pallet 4, pressure cap 3, d33Piezoelectric energy-capturing piece 5, floatable pallet 4 in vertical load and erect
It synchronizes and moves up and down under being acted on to reset spring 8.
In the present embodiment, the hinged seat 1201 of floatable pallet 4 and force transmission mechanism 12 is welded.
In the present embodiment, laterally resetting contraction spring 1204 can make force transmission mechanism 12 in lateral parking position accuracy.
In the present embodiment, the main function of cantilever support plate 6 is the shearing bottom plate 6-4 limit to force transmission mechanism 12, it is ensured that
The shear action of bottom plate is sheared, 6 lower surface of cantilever support plate needs smooth enough and has enough stiffness and strength.
In the present embodiment, multilayer d33Pass through electrode parallel connection between piezoelectric energy-capturing piece 5 and exported by electrode slice 19 by conducting wire 20,
Similarly, multiple d15It is in parallel and exported by electrode slice 19 by conducting wire 20 to pass through electrode between piezoelectric energy-capturing piece 10, conducting wire 20 and leads
Deceleration strip is exported after parallel connection between line 20.
In the present embodiment, d33Piezoelectric energy-capturing piece 5 is using based on d33The piezoelectric ceramics of transducing mode is made, d15Piezoelectric energy-capturing
Piece 10 is using based on d15The piezoelectric ceramics of transducing mode is made.
The course of work of the invention is as described below:
In use, being formed as shown in fig. 6, multiple piezo-electric generating deceleration strips of the invention are axially stitched together
One complete deceleration strip.Axle for vehicle is carried acts on pressure cap 3, pressure cap 3, d to deceleration strip generation vertical pressure first33Piezoelectricity
Prisoner's energy piece 5,4 entirety of floatable pallet move downward.Due to being welding between force transmission mechanism 12 and floatable pallet 4, so passing
Force mechanisms 12 move downward simultaneously, so that the first transmission side plate 1202 and the second transmission side plate 1203 are opened around hinged seat 1201
It opens, with the opening of the first transmission side plate 1202 and the second transmission side plate 1203, corresponding first shearing bottom plate 1205 and second
Shearing bottom plate 1206 will receive horizontal lateral force effect, and the first shearing bottom plate 1205 and second is cut under horizontal lateral force effect
Cutting bottom plate 1206 can move in shearing chamber 11 under the rolling support of roller bearing 15, give d15Piezoelectric energy-capturing piece 10 applies a shearing
Power promotes d15Piezoelectric energy-capturing piece 10 is by hair-cutting electricity.
Progress synchronous with the above process is the meeting forced compression of vertical reset spring 8 on cantilever support plate 6, thus
To reset energy reserve, and lateral reset spring 1204 is also due to the first transmission side plate 1202 and second is driven side plate 1203
Open and in lateral extension, thus can be force transmission mechanism 12 reset energy reserve.
Finally when floatable pallet 4 touches the limited support column 14 of cantilever support plate 6, whole device is vertically down
Motion process terminates.In the case where vertical reset spring 8 and lateral reset spring 1204 act on, device resets.
Claims (8)
1. a kind of road piezo-electric generating deceleration strip, including pedestal (1), which is characterized in that be provided with open-top in pedestal (1)
Cavity (2), the open top of cavity (2) are provided with pressure cap (3), and pressure cap (3) can vertically gone up and down relative to pedestal (1)
Movement；
It is provided with floatable pallet (4) in cavity (2) below the pressure cap (3), floatable pallet (4) and pressure cap
(3) one layer or more of d is provided between33Piezoelectric energy-capturing piece (5)；Pressure cap (3) vertically pushes so that d33Piezoelectric energy-capturing piece (5)
Be squeezed power generation；
It is axially provided with cantilever support plate (6) on the vertical inner wall of the cavity (2), cantilever support plate is equipped on (6)
The top of the bottom end of multiple vertical reset springs (8), multiple vertical reset springs (8) is uniformly mounted on floating pallet (4) bottom
At marginal position；
It is axially provided with support bar (9), props up below cantilever support plate (6) immediately below the vertical reset spring (8)
The top of stay (9) is contacted with the bottom of cantilever support plate (6), and the bottom end of support bar (9) is contacted with pedestal (1), support bar (9)
Lateral outer side contacted with the vertical inner wall of cavity (2)；
D is laid with respectively along axial restraint on the pedestal (1) in cavity (2) below the cantilever support plate (6)15Piezoelectricity
Prisoner can piece (10)；Support bar (9), cantilever support plate (6) and d15It is open that a laterally inboard is formed between piezoelectric energy-capturing piece (10)
Shearing chamber (11)；
Interior floatable pallet (4) bottom centre position of the cavity (2) is equipped with force transmission mechanism (12)；The force transmission mechanism
It (12) include the hinged seat (1201) being connected with floatable pallet (4) bottom, hinged seat is hinged with the first transmission side on (1201)
The top on the top of plate (1202) and the second transmission side plate (1203)；The first transmission side plate (1202) being oppositely arranged and second passes
It is provided with more than one between dynamic side plate (1203) and laterally resets contraction spring (1204)；The bottom end of first transmission side plate (1202)
It is hinged with the inside of the first shearing bottom plate (1205), the bottom end of the second transmission side plate (1203) and the second shearing bottom plate (1206)
Inside is hinged；
It is respectively protruding on the outside of the outside of first shearing bottom plate (1205) and the second shearing bottom plate (1206) to laterally two
In the shearing chamber (11) of side, the vertical thickness of the vertical thickness of the first shearing bottom plate (1205) and the second shearing bottom plate (1206) is equal
It is equal with the shearing vertical thickness of chamber (11), so that bottom plate (1206) are sheared in the bottom of the first shearing bottom plate (1205) and second
Bottom respectively with d15The top surface of piezoelectric energy-capturing piece (10) contacts, and pressure cap (3) vertically pushes force transmission mechanism (12), so that first cuts
It cuts bottom plate (1206) and the second shearing bottom plate (1206) is moved to both lateral sides and d15Piezoelectric energy-capturing piece (10) contact generates shearing
Power power generation.
2. road as described in claim 1 piezo-electric generating deceleration strip, which is characterized in that be provided at the top of the pedestal (1)
Limiter (13), pressure cap (3) are mounted in limiter (3), and limiter (13) is for limiting pressure cap (3) in vertical highest
Stroke.
3. road as claimed in claim 2 piezo-electric generating deceleration strip, which is characterized in that in the vertical reset spring (8)
It is provided with limited support column (14) on the cantilever support plate (6) in portion, limited support column (14) is for limiting pressure cap (3) vertical
Minimum stroke.
4. road as described in claim 1 piezo-electric generating deceleration strip, which is characterized in that first shearing bottom plate (1205)
It is respectively arranged with roller bearing (15) with the bottom of the second shearing bottom plate (1206) close to the part of chamber central, roller bearing (15) and installation
Roller bearing pedestal (16) in cavity (2) interior base (1) matches.
5. road as claimed in claim 4 piezo-electric generating deceleration strip, which is characterized in that the roller bearing pedestal (16) and d15Pressure
Electricity prisoner's energy piece (10) is laterally laid in same plane.
6. road as described in claim 1 piezo-electric generating deceleration strip, which is characterized in that the vertical reset spring (8)
Outer diameter is less than or equal to the transverse width of support bar (9).
7. road as described in claim 1 piezo-electric generating deceleration strip, which is characterized in that the pedestal (1) is elastic base.
8. road as described in claim 1 piezo-electric generating deceleration strip, which is characterized in that the limiter (13) passes through high-strength
Bolt (17) and gasket (18) are mounted on pedestal (1), and the pedestal (1) is mounted on road surface by plain bolt (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193035.4A CN110359367B (en) | 2019-03-14 | 2019-03-14 | Piezoelectric power generation deceleration strip for road |
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| CN201910193035.4A CN110359367B (en) | 2019-03-14 | 2019-03-14 | Piezoelectric power generation deceleration strip for road |
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| CN110359367B CN110359367B (en) | 2021-03-19 |
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| CN111501600A (en) * | 2020-05-13 | 2020-08-07 | 宁波镇海星奥汽车科技有限公司 | Traffic deceleration strip capable of automatically lifting |
| CN111641350A (en) * | 2020-05-14 | 2020-09-08 | 西安交通大学 | Flextensional transducer based on shearing piezoelectric mode |
| CN113131789A (en) * | 2021-04-22 | 2021-07-16 | 长春工业大学 | Multimode road piezoelectric power generation device |
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| CN111501600A (en) * | 2020-05-13 | 2020-08-07 | 宁波镇海星奥汽车科技有限公司 | Traffic deceleration strip capable of automatically lifting |
| CN111501600B (en) * | 2020-05-13 | 2020-11-24 | 新东港控股集团有限公司 | Traffic deceleration strip capable of automatically lifting |
| CN111641350A (en) * | 2020-05-14 | 2020-09-08 | 西安交通大学 | Flextensional transducer based on shearing piezoelectric mode |
| CN113131789A (en) * | 2021-04-22 | 2021-07-16 | 长春工业大学 | Multimode road piezoelectric power generation device |
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| CN110359367B (en) | 2021-03-19 |
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