CN106739908A - A kind of Kaman's piezoelectric type suspension energy feed system - Google Patents
A kind of Kaman's piezoelectric type suspension energy feed system Download PDFInfo
- Publication number
- CN106739908A CN106739908A CN201611058592.8A CN201611058592A CN106739908A CN 106739908 A CN106739908 A CN 106739908A CN 201611058592 A CN201611058592 A CN 201611058592A CN 106739908 A CN106739908 A CN 106739908A
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- Prior art keywords
- cantilever beam
- energy
- piezoelectric
- kaman
- suspension
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- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 230000035939 shock Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
-
- 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
- H02N2/181—Circuits; Control arrangements or methods
-
- 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
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/20—Mounting of accessories, e.g. pump, compressor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60G2401/10—Piezoelectric elements
Abstract
A kind of Kaman's piezoelectric type suspension energy feed system of the present invention, air eddy energy during by running car on rear side of suspension shock-absorber is converted into electric energy.The present invention installs cantilever beam in the shock absorber outer wall of automotive suspension, piezoelectric ceramics diaphragm is fixed on cantilever beam, using Karman vortex street principle, when the air of flowing flows through cylinder shock absorber, vortex wake flow is alternately produced in the both sides at its back side, vortex wake produces the pressure for alternately changing, piezoelectric ceramics to produce electromotive force after being pressurized on piezoelectric ceramics diaphragm, after filtering to the storage battery power supply of automobile after device and voltage regulator transformation.Described device is generated electricity using the air flow at the suspension of vehicle traveling process completely, it is not necessary to consume other energy, and reliability is high, energy-conservation, environmental protection.
Description
Technical field
A kind of Kaman's piezoelectric type suspension energy feed system of the present invention, belongs to the technical field of automotive energy-saving emission-reducing.
Technical background
Suspension is the general name of all load transfer devices between vehicle frame and vehicle bridge (or wheel), and automobile flows in motion process
Air can flow longitudinally through the upper and lower surface of automobile, and also include suspension among these, this partially due to air flow and produce
Energy is taken as automobile running resistance always, at present, running resistance is reduced from the angle for reducing automobile windage coefficient so as to reality
The technology for now reducing oil consumption is more, and thought of the invention is then on the premise of windage is not changed, to this fraction energy
Reclaimed.
Kaman (vortex street) principle is this that found from aerodynamic viewpoint by Germany scientist Kaman in 1911
The theoretical foundation of kind of vortex stabilization, each frequency being singly vortexed of vortex street is directly proportional to diffraction velocity, with cylinder diameter into
Inverse ratio.Whether relevant with Reynolds number the appearance of vortex street is, when Reynolds number is more than 3 × 106When, alternate vortex street occurs.Work as appearance
During vortex street, fluid can produce the alternation horizontal force of a cycle to object.
Therefore, it can, using the alternating force, act on piezoelectric ceramics to produce the voltage of alternation, and then realize energy
Reclaim and store.At present, the technology of suspension energy is reclaimed by air eddy also in exploratory stage, this reality invented
There is important energy-saving significance and wide application prospect with change energy feed system.
The content of the invention
The technical problems to be solved by the invention are：Air eddy at suspension shock-absorber in vehicle traveling process,
The mechanism that design structure is simple and reliable, impost is small, can reclaim more vortex wake energy；Solve Suspension movement and
Other moving components such as wheel of automobile chassis etc. keeps the stabilization of charging voltage to the interference problem of air eddy.
The present invention solves the scheme taken of the technical problem：Using a kind of cantilever beam structure, by cantilever beam by outstanding
Arm beam splice and fixing bolt are fixed on the correct position of shock absorber, and stud is carried on cantilever beam, and remaining part is all with cantilever
Beam arranges that piezoelectric ceramics diaphragm is fixed on cantilever beam by upper and lower two nuts for matrix, and with the upper surface of cantilever beam
Maintain a distance for nut thickness.ECU wave filter, voltage regulator and its autoexcitation is attached in the present apparatus to supply
Electrical equipment：Wave filter is filtered irregular electric signal is input into, and it is exported according to the sine wave signal of regulation；Voltage-regulation
Input voltage is carried out copped wave and A/D conversions by device, enables the numeric type voltage and current signal of alternation directly for for battery
With vehicle-mounted supply network；The electromotive force that autoexcitation charger is produced using direct piezoelectric effect, with reference to the capacitor and inductor of quick charge and discharge
LC loops, realize the power supply to wave filter and voltage regulator.Wave filter, autoexcitation charger and voltage regulator are all with bolt
The mode of connection is fixed on the stud of cantilever beam.
This technology has following advantage：
1. the air eddy wake energy produced by suspension in vehicle traveling process can be collected, be converted into electric energy
Recycled.
2. part is all installed on cantilever beam and its joint, convenient disassembly；Be longitudinally arranged can reduce suspension swing when and its
Transverse movement interference between its part.
3. independently installed piezoelectric ceramics diaphragm, can be according to vehicle type structure, suspension form and highest speed of operation to diaphragm
Size is reasonably selected and replaced, and improves the versatility and adaptability of device.
4. wave filter, the introducing of voltage regulator can reduce the influence of main vortex disturbing factor, reduce to external world
The requirement of environment and vehicle driving-cycle, improves the stability of device.
5. the electricity of consumption automobile storage battery when the introducing of autoexcitation charger avoids wave filter and voltage regulator operation
Can, realize target of the whole device to the intrinsic consumption of the energy zero of automobile.
Brief description of the drawings：
Fig. 1 is Kaman's piezoelectric type suspension energy feed system schematic diagram；
The autoexcitation of 1. shock absorber, 2 stud (a), 3. nut (a), 4. piezoelectric ceramics diaphragm, 5. cantilever beam 6. is powered in figure
The voltage of 12. cantilever beam splice of device 7. nut (a), 8. stud (b), 9. wave filter, 10. nut (c), 11. fixing bolt 13.
Adjuster
Fig. 2 is cantilever beam splice top view
The location hole (b) of 14. location hole (a) 15.
Fig. 3 is cantilever beam joint side view
Specific embodiment
Specific implementation process of the present invention is described further below in conjunction with the accompanying drawings.
With reference to described in Fig. 1 Fig. 2 Fig. 3, Fig. 1 is Kaman's piezoelectric type suspension energy feed system schematic diagram, mainly includes shock absorber 1,
Cantilever beam 5, piezoelectric ceramics diaphragm 4, autoexcitation charger 6, wave filter 9 and voltage regulator 13；Cantilever beam lower end is with positioning
To facilitate fixed filters 9, upper end carries piezoelectric ceramics diaphragm 4 to stud (b) 8, and piezoelectric ceramics diaphragm 4 utilizes 2 nuts (a) 3
Fixation up and down makes the distance that it maintains a nut thickness between cantilever beam 5, and the advantage is to ensure piezoelectric ceramics diaphragm 4
There is certain Oscillation Amplitude, also cause that mechanical energy is converted to electricity while alternately vibration caused by the convenient alternate vortex street of collection
Can it is in hgher efficiency, Fig. 2 Fig. 3 is respectively the top view and side view of cantilever beam splice 12, and what is carried on cantilever beam splice 12 determines
Position hole 14,15, location hole (a) 14 is used to carry out the fixation of voltage regulator 13, and location hole (b) 15 is used for cantilever beam splice 12
It is fixed with cantilever beam 5, wave filter 9 can realize that the electric energy that will be produced, according to the voltage and rate-adaptive pacemaker of regulation, realizes voltage
Stability, prevent from damaging battery because of unstable voltage, the Main Function of voltage regulator 13 is after wave filter 9 is filtered
Electric energy adjust the vehicle-mounted voltage that its voltage is automobile, realize charging and the direct confession of automobile electrical network to battery
Electricity.The Main Function of autoexcitation charger 6 is to realize the power supply to wave filter and voltage regulator.
In vehicle traveling process, when the air of flowing flows through the shock absorber 1 of approximate cylindrical shape, in cylinder
The both sides at the back side produce alternately vortex and form vortex wake after shock absorber is departed from, and cause the vibration of piezoelectric ceramics diaphragm 4, by
Electromotive force is produced in the direct piezoelectric effect of piezoelectric ceramics, is reclaimed for electric energy.Due to air flow unstability and
Wheel rotation, suspension swing etc. produce influence, can cause energy regenerative spread of voltage, therefore in the present apparatus, by piezoelectric ceramic film
The transmission line of electricity of piece 4 is arranged in the lower end of cantilever beam 5, is connected with wave filter 9, and wave filter 9 is filtered the voltage of input, will
Voltage produces the alternating voltage of stabilization, then the alternating voltage of stabilization is input into voltage and adjust according to setting waveform and rate-adaptive pacemaker
In section device 13, the DC voltage that voltage is changed into 12V is directly inputted in battery, or directly the power utilization network to automobile is entered
Row power supply, reaches the effect that energy regenerating is utilized.When vortex wake flow is initially produced, wave filter 9 and voltage regulator 13 do not work,
Solve the problems, such as that piezoelectric electro kinetic potential is unstable using its built-in LC loop by autoexcitation charger 6, after the full electric charge of electric capacity storage again
It is that wave filter 9 and voltage regulator 13 are powered by electric capacity, current supply loss is still supplemented by LC loops.
During the conversion of whole energy is reclaimed, the energy source for utilizing is the air eddy wake flow at suspension shock-absorber, energy
Amount conversion process is based on the principle of direct piezoelectric effect, and its pressure pressure action direction is vertical with vehicle traveling direction, to vapour
Car will not produce extra air drag, and the active component such as wave filter 9, voltage regulator 13 can also be used self-excitation
Encourage charger 6 and realize electric energy self-supporting, with good energy-saving and emission-reduction meaning.
Claims (4)
1. a kind of Kaman's piezoelectric type suspension energy feed system, including shock absorber, cantilever beam, cantilever beam splice, piezoelectric ceramics diaphragm and
Fixing bolt and wave filter, autoexcitation charger and voltage regulator；Cantilever beam is solid by cantilever beam splice and fixing bolt
It is scheduled on shock absorber, the upper surface of cantilever beam is fixed with piezoelectric ceramics diaphragm, and the electric energy of generation is connected by cantilever beam lower surface
Electric wire is delivered to autoexcitation charger, wave filter and voltage regulator and is delivered to battery again；Wherein the material of cantilever beam is 45
Steel, it is main to play a part of to support and fix other devices and arrangement circuit；The collective effect of cantilever beam splice and fixing bolt, makes
The position of cantilever beam is fixed, without up and down and around the motion of shock absorber.
2. a kind of Kaman's piezoelectric type suspension energy feed system according to claims 1, described device is characterised by：Employ
Cantilever beam is connected to suspension shock-absorber outer wall as fixed structure using semi-circular joint；The upper surface of cantilever beam is fixed with pressure
Electroceramics material, lower end is attached with wave filter and autoexcitation charger, and voltage regulator is installed in cantilever beam joint.
3. a kind of Kaman's piezoelectric type suspension energy feed system according to claims 1 or 2, it is characterised in that：Piezoelectric ceramics
Diaphragm is connected to cantilever beam using bolt arrangement, piezoelectric ceramics diaphragm removable and replaceable, its minimum area according to vehicle type structure,
Suspension form and highest speed of operation determine.
4. a kind of Kaman's piezoelectric type suspension energy feed system according to claims 1 or 2, it is characterised in that：By device
Itself produce electric energy to be collected utilization, produce piezoelectric electro kinetic potential using gas swirl wake flow, and be provided with autoexcitation charger
Module, the characteristic that can store electric charge using electric capacity is realized to wave filter and the self-powered of voltage regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058592.8A CN106739908B (en) | 2016-11-27 | 2016-11-27 | A kind of Kaman's piezoelectric type suspension energy feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611058592.8A CN106739908B (en) | 2016-11-27 | 2016-11-27 | A kind of Kaman's piezoelectric type suspension energy feed system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106739908A true CN106739908A (en) | 2017-05-31 |
| CN106739908B CN106739908B (en) | 2019-02-19 |
Family
ID=58911691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611058592.8A Active CN106739908B (en) | 2016-11-27 | 2016-11-27 | A kind of Kaman's piezoelectric type suspension energy feed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106739908B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612420A (en) * | 2017-09-15 | 2018-01-19 | 哈尔滨工程大学 | A kind of piezoelectric energy collecting device |
| CN107745636A (en) * | 2017-10-27 | 2018-03-02 | 周燕红 | A kind of method that Vibration of Vehicle Suspensions energy regenerating utilizes |
| CN112796733A (en) * | 2021-01-07 | 2021-05-14 | 中国石油天然气股份有限公司 | Self-generating vortex street flowmeter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643008A (en) * | 2008-08-06 | 2010-02-10 | 现代自动车株式会社 | Energy regeneration device for suspension system |
| WO2010111376A1 (en) * | 2009-03-25 | 2010-09-30 | Nikhil Bhat | Energy harvesting system |
| CN202663175U (en) * | 2012-07-02 | 2013-01-09 | 刘灿昌 | Energy recovery device for piezoelectric cantilever bump leveller |
| CN103909798A (en) * | 2012-12-31 | 2014-07-09 | 现代自动车株式会社 | Energy regeneration device of suspension system for vehicle |
-
2016
- 2016-11-27 CN CN201611058592.8A patent/CN106739908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643008A (en) * | 2008-08-06 | 2010-02-10 | 现代自动车株式会社 | Energy regeneration device for suspension system |
| WO2010111376A1 (en) * | 2009-03-25 | 2010-09-30 | Nikhil Bhat | Energy harvesting system |
| CN202663175U (en) * | 2012-07-02 | 2013-01-09 | 刘灿昌 | Energy recovery device for piezoelectric cantilever bump leveller |
| CN103909798A (en) * | 2012-12-31 | 2014-07-09 | 现代自动车株式会社 | Energy regeneration device of suspension system for vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612420A (en) * | 2017-09-15 | 2018-01-19 | 哈尔滨工程大学 | A kind of piezoelectric energy collecting device |
| CN107745636A (en) * | 2017-10-27 | 2018-03-02 | 周燕红 | A kind of method that Vibration of Vehicle Suspensions energy regenerating utilizes |
| CN112796733A (en) * | 2021-01-07 | 2021-05-14 | 中国石油天然气股份有限公司 | Self-generating vortex street flowmeter |
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| Publication number | Publication date |
|---|---|
| CN106739908B (en) | 2019-02-19 |
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