CN107493030A - Frictional electrostatic generating device based on bridge vibration - Google Patents
Frictional electrostatic generating device based on bridge vibration Download PDFInfo
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- CN107493030A CN107493030A CN201710814309.8A CN201710814309A CN107493030A CN 107493030 A CN107493030 A CN 107493030A CN 201710814309 A CN201710814309 A CN 201710814309A CN 107493030 A CN107493030 A CN 107493030A
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- frictional
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- electrostatic generating
- bridge
- frictional electrostatic
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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Abstract
The present invention provides a kind of frictional electrostatic generating device based on bridge vibration, the TRT is applied in the bridge structure of box beam formula, including multiple frictional electrostatic generating units, frictional electrostatic generating distributed unit is arranged on the side of box beam, position beyond lower surface and box beam inner distance bridge pad end 3m, frictional electrostatic generating unit can multiple frictional electrostatic generatings dress units series connection and by caused electric energy with bridge vibration, collect the mechanical energy of box-beam structure vibration and the mechanical energy of collection is converted into electric energy and stored or be power supply for electrical equipment.Triboelectricity unit is together in series by the present invention by electric wire, it is built in waterproof enclosure material, installed in box-beam structure side, lower surface and inside, bridge vibration mechanical energy caused by environment dynamic load is converted into electric energy, it can be stored in time when producing electric energy and having more than needed, the continued power of guarantee system, a kind of brand-new environment-friendly and green energy is provided for bridge structure.
Description
Technical field
Can TRT the present invention relates to the prisoner for bridge structure.
Background technology
In the case where advocating the overall situation of energy-conserving and environment-protective now, the clean energy resource such as solar energy, wind energy is extensive in means of transportation
Using, but its size and arrangement requirement are limited to, it can only often be used on a small scale as affiliated facility.Therefore, it is necessary to a kind of energy
More widely use and can be combined in itself with means of transportation structure, the energy supply as a structure part rather than simple additional facilities
Equipment.
Larger structural vibration can often occur under dynamic load for bridge structure, and knot is often taken in bridge's design
Structure optimizes and adds vibration absorber with control structure oscillation intensity, and the essence of wherein vibration absorber is exactly energy absorbing device.
With reference to the fast development and extensive use of energy accumulator in recent years, and the proposition of some vibration energy accumulator applications so that it is frictional quiet
Electricity prisoner energy device is possibly realized in the application that the controlling of vibration and vibration energy harvesting recycle.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of frictional electrostatic generating device based on bridge vibration, energy
Electric energy is provided using the vibration deformation of bridge structure.
The technical proposal for solving the technical problem of the invention is：Frictional electrostatic generating dress based on bridge vibration
Put, the TRT is applied in the bridge structure of box beam formula, including multiple frictional electrostatic generating units, frictional electrostatic hair
The distributed position being arranged on beyond the side, lower surface and box beam inner distance bridge pad end 3m of box beam of electric unit, rubs
Erasing electrostatic generating unit can multiple frictional electrostatic generatings dress units series connection and by caused electric energy with bridge vibration, receive
Integrate the mechanical energy of box-beam structure vibration and the mechanical energy of collection is converted into electric energy and stored or as power supply for electrical equipment.
Further, frictional electrostatic generating unit includes first substrate and second substrate, and the width of first substrate is less than
Opposite polarity dielectric materials layer is coated with respectively in this one side that second substrate, first substrate and second substrate contact with each other,
The outside of first substrate and second substrate is provided with the waterproof enclosure of hard, and first substrate passes through the spring consistent with its horizontal direction
It is connected with waterproof enclosure, when frictional electrostatic generating unit receives extrusion and vibration, under the action of the spring, first substrate and
Two substrates relatively move so that and the contact area of first substrate and second substrate changes, so as to which electric charge transfer occur,
Electric charge produces electric current through additional circuit, is reserved with electrical wire interface on waterproof enclosure, and additional circuit is connected to the by electrical wire interface
One substrate and/or second substrate are so that its caused electric current be exported.
Frictional application of the electrostatic generating device in bridge structure can be set by following theoretical calculation process spread structure
Meter and Optimization Work.In the case where additional dynamic load p (x, t) acts on, the dynamic response of freely-supported bridge can obtain according to mode superposition method,
The dynamic equilibrium differential equation represented with principal coordinate is as follows：
Wherein qj(t) it is jth rank dynamic respond, ζjFor jth first order mode damping ratio, λjFor jth rank intrinsic frequency, MjFor mould
State quality,For mode load, φj(x) it is jth first order mode, l is bridge length.It can be asked by equation
Dynamic respond of the bridge under each first order mode is obtained, and the dynamic respond of optional position on bridge can be tried to achieve according to mode superposition method such as
Under：
According to the bridge vibration dynamic respond for the frictional electrostatic generating device operating position tried to achieve, TRT can be tried to achieve
The vibratory response of middle motion parts, its vibratory response can be briefly described for：
Output voltage can be tried to achieve by V (t) in frictional electrostatic generating device and x (t) relation equation
Wherein d0=d1/εr1+d2/εr2, for the equivalent thickness of dielectric material, l is the length that dielectric material is scribbled on battery lead plate
Degree, w are that the width of dielectric material is scribbled on battery lead plate, and σ is dielectric material surface charge density, ε0For permittivity of vacuum.Root
According to the output voltage and output circuit parameter attribute tried to achieve, the theoretical electric energy that can try to achieve frictional electrostatic generating device exports, and
Prisoner can be carried out according to the relation can apparatus structure design optimization.
Further, the spacing between adjacent frictional electrostatic generating unit is 8cm.
Further, when frictional electrostatic generating unit is arranged on box girder web, this side of first substrate is fixed viscous
Knot is on the surface of web；When frictional electrostatic generating unit is arranged on the inner surface of box beam bottom plate, this one end away from spring
Fixation is bonded on bottom plate；When frictional electrostatic generating unit is arranged on the outer surface of box beam bottom plate, close to this of spring
End fixation is bonded on bottom plate；When frictional electrostatic generating unit is arranged on the inner surface of box beam top plate, close to this of spring
One end is fixed and is bonded on top plate；That is, frictional electrostatic generating unit is remained close to this one end of spring upward.
Further, multiple frictional electrostatic generating units are chained together to form power supply circuit by electric wire, power supply electricity
Road is sequentially connected stabilized rectifier, energy storage device and potential device, and stabilized rectifier, energy storage device and potential device pass through electric wire
The output port of power supply circuit is connected to, the output port of power supply circuit is connected to electrical equipment.
Further, power supply circuit is encapsulated using macromolecule flexible water insulating materials, forms the contact-type frictional hair
Electric installation.
Further, electrical equipment includes monitoring system, damping system, lighting device and the driving instruction of bridge structure
Board.
Frictional electrostatic prisoner energy material can be according to its power electric conversion properties, and bridge caused by under environmental load is acted on shakes
Mechanical energy caused by dynamic is converted into electric energy, and is collected and utilizes, and electric energy is provided for each electricity consumption facility on bridge, plays change evil
For the purpose of profit.Box-beam structure is widely used, if rationally being utilized to mechanical energy caused by box-beam structure vibration, is entirely capable of
Be enough the monitoring system in the structure, damping system, lighting device, driving direction board etc. electricity consumption is provided, electricity more than needed is stored
In getting up, the continued power of the self energizing system can be ensured.Frictional electrostatic prisoner energy apparatus structure is simple, system easy to process
Make, be easy to miniaturization and integrated, the energy acquisition of material and the limitation of application working environment less, it is efficiency high, green, it is related
The utilization of technology will produce huge economic benefit, provides power-assisted to build a resource-conserving society, has certain market
Potentiality and economic value.
The beneficial effects of the invention are as follows：Triboelectricity unit is together in series by the present invention by electric wire, is filled with power supply
Put together, be built in waterproof enclosure material, installed in box-beam structure side, lower surface and inside, environment dynamic load is caused
Bridge vibration mechanical energy be converted into electric energy, by the voltage stabilizing of the power supply integrated system in the power supply film apparatus, transformation
Processing, is powered or carries out power storage to each electrical equipment on bridge, electric energy caused by TRT of the invention is complete
All can be enough the monitoring system in bridge structure, damping system, lighting device, the enough electric energy of offer such as driving direction board, also
Possess electrical energy storage device, can in time be stored when producing electric energy and having more than needed, ensure the continued power of system, be bridge knot
Structure provides a kind of brand-new environment-friendly and green energy.
Brief description of the drawings
Fig. 1 is the structure chart of frictional electrostatic generating unit.
Fig. 2 is the structure chart of box beam.
Fig. 3 is five kinds of bonding ways of frictional electrostatic generating unit and box beam, wherein, Fig. 3 (a) and Fig. 3 (b) they are frictions
The schematic diagram that formula electrostatic generating unit is connected with box girder web, it is interior with box beam bottom plate that Fig. 3 (c) is frictional electrostatic generating unit
The schematic diagram of surface connection, Fig. 3 (d) is the schematic diagram that frictional electrostatic generating unit is connected with the outer surface of box beam bottom plate, Fig. 3
(e) it is schematic diagram that frictional electrostatic generating unit is connected with the inner surface of box beam top plate.
Fig. 4 is the sectional view of the present invention, wherein each frictional electrostatic generating unit all presses five kinds of bonding sides in Fig. 3 respectively
Formula is bonded with box beam.
Fig. 5 is Fig. 4 1-1 sectional drawings.
Fig. 6 is Fig. 4 a-a profiles.
Label in figure：1- springs；2- hard waterproof enclosures；3- first substrates；4- positive pole dielectric materials；5- negative pole dielectric materials
Material；6- second substrates；The frictional electrostatic generating units of 7-；8- electric wires；9- macromolecules waterproof insulation encapsulates；10- stabilized rectifiers；
11- transformers；12- electric energy storage devices；13- current output terminal mouths；14- box beams.
Embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing
Referring to the drawings.
The frictional electrostatic generating device of the present invention is arranged in box beam 14, and frictional electrostatic generating device includes multiple rub
Erasing electrostatic generating unit 7, frictional electrostatic generating unit 7 between any two spacing in 8cm or so, frictional electrostatic generating unit
7 quantity are determined that the frictional quantity of electrostatic generating unit 7 is more, that is, the electricity that can be provided is bigger by electrical equipment institute subfam. Spiraeoideae.
The frictional structure of electrostatic generating unit 7 is as shown in figure 1, basic structure is the first substrate 3 and second of surface contact
Substrate 6, first substrate 3 and second substrate 6 or so are arranged, it is opposite to scribble electric polarity on the contact surface of two substrates 3,6 respectively
Dielectric material 4,5, the external hard waterproof enclosure 2 of unit.When two substrates vibrate generation relative displacement because of box beam 14, dielectric material
Contact area between material 4,5 can change, and so as to which electric charge transfer occur, electric charge produces electric current through additional circuit, and device externally discharges.
First substrate 3 is connected with waterproof enclosure 2 with the spring 1 of vertical direction, has suitable rigidity to the requirement of spring 1, to cause the hair
Electric installation can be changed in the vibration of box beam 14 by the contact area of dielectric material 4,5 produces electric current, so as to which mechanical energy be turned
Turn to electric energy.
Multiple frictional electrostatic generating units 7 are chained together to form power supply circuit by electric wire 8, and it is each that electric wire plays connection
Frictional electrostatic generating unit 7, stabilized rectifier 10, transformer 11, electric energy accumulator 12, the circuit output for connecting electrical equipment
Port 13 and the effect for transmitting electric current.
Also include stabilized rectifier 10, transformer 11 and energy storage device 12, stabilized rectifier 10, transformer on power supply circuit
11 and energy storage device 12 output port 13 of power supply circuit is connected to by electric wire 8, the current output terminal mouth 13 of power supply circuit connects
Electrical equipment is connected to, electrical equipment refers mainly to the electrical equipment on bridge, specifically includes monitoring system, the damping system of bridge structure
System, lighting device and driving direction board etc..Stabilized rectifier 10, transformer 11, electric energy accumulator 12 and connection electrical equipment
Circuit output port 13, be connected by electric wire 8 with each frictional electrostatic generating unit 7, by circuit output port 13 with outside
Portion's electrical equipment is connected and is its power supply, and energy storage device stores electric energy more than needed.
Power supply circuit is encapsulated using macromolecule flexible water insulating materials 9, forms frictional electrostatic prisoner energy device, frictionally
Electrostatic prisoner's energy device is arranged on the position beyond box beam side, lower surface and inner distance beam support end 3m, frictional electrostatic prisoner
Energy device and the contact surface of box beam 14 are fixed using high-strength adhesive.
Frictional electrostatic generating unit 7 is in flat on the whole, and hard waterproof enclosure 3 can unit 7 with frictional electrostatic prisoner
Outline shape shape it is consistent, provide enough contact surfaces for the use of adhesive, it is ensured that frictional anti-electrostatic unit device 7 can
Box beam side, lower surface are securely fixed in internal, current output terminal mouth 13 is arranged on the one of frictional anti-electrostatic unit unit 7
Side, the space of cabling are arranged on the homonymy of frictional anti-electrostatic unit unit 7, prevent internal cabling from Stagger-wrap occurring in vibration
Influence generating effect and the stabilization of total system.
Claims (7)
1. the frictional electrostatic generating device based on bridge vibration, the TRT is applied in the bridge structure of box beam formula, its
Be characterized in, including multiple frictional electrostatic generating units, frictional electrostatic generating distributed unit be arranged on box beam side, under
Position beyond surface and box beam inner distance bridge pad end 3m, frictional electrostatic generating unit can be multiple frictional quiet
Electricity generate electricity the series connection of dress unit and by caused electric energy with bridge vibration, collect the mechanical energy of box-beam structure vibration and by collection
Mechanical energy is converted to electric energy and is stored or be power supply for electrical equipment.
2. the frictional electrostatic generating device according to claim 1 based on bridge vibration, it is characterized in that, frictional electrostatic
Generator unit includes first substrate and second substrate, and the width of first substrate is less than second substrate, first substrate and second substrate
It is coated with opposite polarity dielectric materials layer in this one side to contact with each other respectively, the outside of first substrate and second substrate is provided with
The waterproof enclosure of hard, first substrate are connected by the spring consistent with its horizontal direction with waterproof enclosure, when frictional electrostatic
When generator unit receives extrusion and vibration, under the action of the spring, first substrate and second substrate relatively move so that first
The contact area of substrate and second substrate changes, and so as to which electric charge transfer occur, electric charge produces electric current, waterproof through additional circuit
Be reserved with electrical wire interface in encapsulation, additional circuit by electrical wire interface be connected to first substrate and/or second substrate so as to by its
Caused electric current output.
3. the frictional electrostatic generating device according to claim 1 based on bridge vibration, it is characterized in that, it is adjacent frictional
Spacing between electrostatic generating unit is 8cm.
4. the frictional electrostatic generating device according to claim 1 based on bridge vibration, it is characterized in that, when frictional quiet
When electric generator unit is arranged on box girder web, the surface for being bonded in web is fixed in this side of first substrate；When frictional electrostatic
When generator unit is arranged on the inner surface of box beam bottom plate, this one end away from spring is fixed and is bonded on bottom plate；When frictional quiet
When electric generator unit is arranged on the outer surface of box beam bottom plate, fixes and be bonded on bottom plate close to this one end of spring；When frictional
When electrostatic generating unit is arranged on the inner surface of box beam top plate, fixes and be bonded on top plate close to this one end of spring；Namely
Say, frictional electrostatic generating unit is remained close to this one end of spring upward.
5. the frictional electrostatic generating device according to claim 1 based on bridge vibration, it is characterized in that, it is multiple frictional
Electrostatic generating unit is chained together to form power supply circuit by electric wire, and power supply circuit is sequentially connected stabilized rectifier, energy storage dress
Put and potential device, stabilized rectifier, energy storage device and potential device are supplied by being wired to the output port of power supply circuit
The output port of circuit is connected to electrical equipment.
6. the frictional electrostatic generating device according to claim 5 based on bridge vibration, it is characterized in that, power supply circuit is adopted
Encapsulated with macromolecule flexible water insulating materials, form the contact-type frictional TRT.
7. the frictional electrostatic generating device according to claim 5 based on bridge vibration, it is characterized in that, electrical equipment bag
Include monitoring system, damping system, lighting device and the driving direction board of bridge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814309.8A CN107493030A (en) | 2017-09-11 | 2017-09-11 | Frictional electrostatic generating device based on bridge vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814309.8A CN107493030A (en) | 2017-09-11 | 2017-09-11 | Frictional electrostatic generating device based on bridge vibration |
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| CN107493030A true CN107493030A (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710814309.8A Withdrawn CN107493030A (en) | 2017-09-11 | 2017-09-11 | Frictional electrostatic generating device based on bridge vibration |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593962A (en) * | 2018-05-11 | 2018-09-28 | 浙江大学 | Cantilever contacts formula self energizing electrostatic acceleration transducer |
| CN108613623A (en) * | 2018-05-11 | 2018-10-02 | 浙江大学 | Electrostatic self energizing strain transducer |
| CN109039142A (en) * | 2018-08-01 | 2018-12-18 | 汕头大学 | A kind of frictional electrostatic generating device based on marine riser vibration |
| CN111835226A (en) * | 2020-06-30 | 2020-10-27 | 河海大学 | Cantilever type piezoelectric energy harvesting device based on box girder vibration |
| CN112729091A (en) * | 2020-12-30 | 2021-04-30 | 交通运输部公路科学研究所 | Self-harvesting energy triboelectric bridge support health monitoring system and support adjusting method |
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| CN103391020A (en) * | 2013-07-16 | 2013-11-13 | 国家纳米科学中心 | Multi-freedom-degree energy acquisition device based on friction nanometer power generator |
| CN104426420A (en) * | 2013-09-06 | 2015-03-18 | 国家纳米科学中心 | Friction nanometer power generator with gear shaping structure |
| CN106160569A (en) * | 2016-02-03 | 2016-11-23 | 浙江大学 | Cable-stayed bridge cable prisoner can TRT |
| CN207399053U (en) * | 2017-09-11 | 2018-05-22 | 浙江大学 | Frictional electrostatic generating device based on bridge vibration |
-
2017
- 2017-09-11 CN CN201710814309.8A patent/CN107493030A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391020A (en) * | 2013-07-16 | 2013-11-13 | 国家纳米科学中心 | Multi-freedom-degree energy acquisition device based on friction nanometer power generator |
| CN104426420A (en) * | 2013-09-06 | 2015-03-18 | 国家纳米科学中心 | Friction nanometer power generator with gear shaping structure |
| CN106160569A (en) * | 2016-02-03 | 2016-11-23 | 浙江大学 | Cable-stayed bridge cable prisoner can TRT |
| CN207399053U (en) * | 2017-09-11 | 2018-05-22 | 浙江大学 | Frictional electrostatic generating device based on bridge vibration |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593962A (en) * | 2018-05-11 | 2018-09-28 | 浙江大学 | Cantilever contacts formula self energizing electrostatic acceleration transducer |
| CN108613623A (en) * | 2018-05-11 | 2018-10-02 | 浙江大学 | Electrostatic self energizing strain transducer |
| CN109039142A (en) * | 2018-08-01 | 2018-12-18 | 汕头大学 | A kind of frictional electrostatic generating device based on marine riser vibration |
| CN111835226A (en) * | 2020-06-30 | 2020-10-27 | 河海大学 | Cantilever type piezoelectric energy harvesting device based on box girder vibration |
| CN112729091A (en) * | 2020-12-30 | 2021-04-30 | 交通运输部公路科学研究所 | Self-harvesting energy triboelectric bridge support health monitoring system and support adjusting method |
| CN112729091B (en) * | 2020-12-30 | 2022-06-07 | 交通运输部公路科学研究所 | Self-harvesting energy triboelectric bridge support health monitoring system and support adjusting method |
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