CN106739908B - 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
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- CN106739908B CN106739908B CN201611058592.8A CN201611058592A CN106739908B CN 106739908 B CN106739908 B CN 106739908B CN 201611058592 A CN201611058592 A CN 201611058592A CN 106739908 B CN106739908 B CN 106739908B
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- cantilever beam
- energy
- suspension
- piezoelectric
- kaman
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- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 239000003990 capacitor Substances 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
- 238000004064 recycling Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 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
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A kind of Kaman's piezoelectric type suspension energy feed system of the present invention, is converted into electric energy for the air eddy energy on rear side of suspension shock-absorber when running car.The present invention installs cantilever beam in the damper outer wall of automotive suspension, piezoelectric ceramics diaphragm is fixed on cantilever beam, utilize Karman vortex street principle, when the air of flowing flows through cylindrical body damper, vortex wake flow is alternately produced in the two sides at its back side, vortex wake generates the pressure of alternately variation in piezoelectric ceramic film on piece, and piezoelectric ceramics generates electromotive force after being pressurized, and the storage battery power supply of automobile is given after wave filter and voltage regulator transformation.Air flowing at the suspension of described device full utilization vehicle traveling process generates electricity, and does not need to consume other energy, high reliablity is energy saving, environmentally protective.
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 during the motion, flows
Air can flow longitudinally through the upper and lower surface of automobile, and among these also include suspension, this partially due to air flowing and generate
Energy is taken as always automobile running resistance, currently, reducing running resistance from the angle for reducing automobile windage coefficient to reality
The technology for now reducing oil consumption is more, and thought of the invention is then under the premise of not changing windage, to this fraction energy
It is recycled.
Kaman (vortex street) principle is this found from aerodynamic viewpoint in 1911 by Germany scientist Kaman
The theoretical foundation of kind of vortex stabilization, the frequency that each of vortex street is singly vortexed is directly proportional to diffraction velocity, with cylinder diameter at
Inverse ratio.It is related with Reynolds number whether the appearance of vortex street, when Reynolds number is greater than 3 × 106When, alternate vortex street will appear.Work as appearance
When vortex street, fluid can generate the alternation horizontal force of a cycle to object.
Therefore, it can use the alternating force, act on piezoelectric ceramics and generate the voltage of alternation, and then realize energy
Recycling and storage.Currently, this reality that the technology for recycling suspension energy by air eddy also in the exploratory stage, is invented
There are important energy-saving significance and wide application prospect with change energy feed system.
Summary of the invention
The technical problems to be solved by the present invention are: for the air eddy at suspension shock-absorber in vehicle traveling process,
The mechanism that design structure is simple and reliable, impost is small can recycle 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 that the technical problem is taken: using a kind of cantilever beam structure, cantilever beam is passed through outstanding
Arm beam splice and fixing bolt are fixed on the suitable position of damper, have stud on cantilever beam, remaining component is all with cantilever
Beam is matrix to arrange, piezoelectric ceramics diaphragm is fixed on cantilever beam by upper and lower two nuts, and the upper surface with cantilever beam
Maintain the distance of a nut thickness.Electronic control unit filter, voltage regulator and its autoexcitation is attached in the present apparatus to supply
Electric appliance: filter is filtered irregular electric signal is inputted, and exports it according to the sine wave signal of regulation；Voltage is adjusted
Input voltage is carried out copped wave with device and A/D is converted, and 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 utilizes direct piezoelectric effect to generate, in conjunction with the capacitor and inductor of quick charge and discharge
The power supply to filter and voltage regulator is realized in the circuit LC.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 the advantage that
1. air eddy wake energy caused by suspension in vehicle traveling process can be collected, it is converted into electric energy
It is recycled.
2. component is all installed on cantilever beam and its connector, convenient for disassembly and assembly；Be longitudinally arranged can reduce suspension swing when and its
Transverse movement interference between its component.
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 is replaced, and the versatility and adaptability of device are improved.
4. the introducing of filter, voltage regulator can reduce the influence of main vortex disturbing factor, reduce to the external world
The requirement of environment and vehicle driving-cycle improves the stability of device.
5. the introducing of autoexcitation charger consumes automobile storage battery electricity when avoiding filter and voltage regulator operation
Can, realize the target that whole device consumes the intrinsic energy of automobile zero.
Detailed description of the invention:
Fig. 1 is Kaman's piezoelectric type suspension energy feed system schematic diagram；
1. damper, 2 stud (a), 3. nut (a), 4. piezoelectric ceramics diaphragm, 5. cantilever beam, 6. autoexcitation is powered in figure
12. cantilever beam splice of device 7. nut (a), 8. stud (b), 9. filter, 10. nut (c), 11. fixing bolt, 13. voltage
Adjuster
Fig. 2 is cantilever beam splice top view
14. 15. location hole (b) of location hole (a)
Fig. 3 is cantilever beam connector side view
Specific embodiment
Specific implementation process of the present invention is described further with reference to the accompanying drawing.
In conjunction with described in Fig. 1 Fig. 2 Fig. 3, Fig. 1 is Kaman's piezoelectric type suspension energy feed system schematic diagram, mainly includes damper 1,
Cantilever beam 5, piezoelectric ceramics diaphragm 4, autoexcitation charger 6, filter 9 and voltage regulator 13；Cantilever beam lower end is with positioning
Stud (b) 8 is to facilitate fixed filters 9, and upper end has piezoelectric ceramics diaphragm 4, and piezoelectric ceramics diaphragm 4 utilizes 2 nuts (a) 3
Fixation maintains it between cantilever beam 5 at a distance from a nut thickness up and down, and the advantage is to guarantee piezoelectric ceramics diaphragm 4
There is certain Oscillation Amplitude, but also mechanical energy is converted to electricity while facilitating alternately vibration caused by collecting alternate vortex street
Can it is more efficient, Fig. 2 Fig. 3 is respectively the top view and side view of cantilever beam splice 12, and what is had on cantilever beam splice 12 determines
Position hole 14,15, location hole (a) 14 are 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, filter 9 can realize the voltage and rate-adaptive pacemaker by the electric energy of generation according to regulation, realize voltage
Stability, prevent from damaging battery because of unstable voltage, the main function of voltage regulator 13 is will be after filter 9 filters
Electric energy adjust its voltage be automobile vehicle-mounted voltage, realize to the charging of battery and the direct confession of automobile electrical network
Electricity.The main function of autoexcitation charger 6 is the power supply realized to filter and voltage regulator.
While the car is driving, when the air of flowing flows through the damper 1 of approximate cylindrical shape, in cylindrical body
The two sides at the back side generate alternately vortex and form vortex wake after being detached from damper, cause the vibration of piezoelectric ceramics diaphragm 4, by
In piezoelectric ceramics direct piezoelectric effect and generate electromotive force, with for electric energy recycle.Due to air flowing unstability and
Wheel rotation, suspension swing etc. have an impact, and will 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 5 lower end of cantilever beam, is connected with filter 9, and the voltage of input is filtered by filter 9, will
Voltage generates stable alternating voltage, then stable alternating voltage is input to voltage tune according to setting waveform and rate-adaptive pacemaker
Save device 13 in, the DC voltage that voltage becomes 12V is directly inputted in battery, or directly to the power utilization network of automobile into
Row power supply, achievees the effect that energy regenerating utilizes.When vortex wake flow initially generates, filter 9 and voltage regulator 13 do not work,
The circuit LC as built in autoexcitation charger 6 using it solves the problems, such as that piezoelectric electro kinetic potential is unstable, after the full charge of capacitor storage again
It is that filter 9 and voltage regulator 13 are powered by capacitor, current supply loss is still supplemented by the circuit LC.
During entire energy is converted and recycled, the energy source utilized is the air eddy wake flow at suspension shock-absorber, energy
Amount conversion process is based on the principle of direct piezoelectric effect, and pressure pressure action direction is vertical with vehicle traveling direction, to vapour
Vehicle will not generate additional air drag, and self-excitation can also be used in the active components such as filter 9, voltage regulator 13
It encourages charger 6 and realizes electric energy self-supporting, there is good energy-saving and emission-reduction meaning.
Claims (3)
1. a kind of Kaman's piezoelectric type suspension energy feed system, including damper, cantilever beam, cantilever beam splice, piezoelectric ceramics diaphragm and
Fixing bolt and filter, confession electric appliance and voltage regulator；Cantilever beam is fixed on by cantilever beam splice and fixing bolt
On damper, the upper surface of cantilever beam is fixed with piezoelectric ceramics diaphragm, and the electric energy of generation connects electric wire by cantilever beam lower end surface
It is transmitted to confession electric appliance, filter and voltage regulator and is transmitted to battery again, wherein the material of cantilever beam is 45 steel, main to rise
It supports and fixes other devices and arranges the effect of route, the collective effect of cantilever beam splice and fixing bolt makes cantilever beam
Position is fixed, without movement upper and lower and around damper.
2. a kind of Kaman's piezoelectric type suspension energy feed system as described in claim 1, it is characterised in that: use cantilever beam conduct
Fixed structure is connected to suspension shock-absorber outer wall using semi-circular joint；The upper surface of cantilever beam is fixed with piezoceramic material,
Lower end is attached with filter and confession electric appliance, and voltage regulator is installed in cantilever beam joint.
3. a kind of Kaman's piezoelectric type suspension energy feed system as described in claim 1, it is characterised in that: piezoelectric ceramics diaphragm utilizes
Bolt arrangement is connected to cantilever beam, and piezoelectric ceramics diaphragm removable and replaceable, minimum area is according to vehicle type structure, suspension form
And highest speed of operation determines.
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN106739908A CN106739908A (en) | 2017-05-31 |
| CN106739908B true CN106739908B (en) | 2019-02-19 |
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Families Citing this family (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 |
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| CN106739908A (en) | 2017-05-31 |
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