CN109728747A - A kind of piezoelectric type energy recyclable device applied to automobile suspension system - Google Patents
A kind of piezoelectric type energy recyclable device applied to automobile suspension system Download PDFInfo
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- CN109728747A CN109728747A CN201910178723.3A CN201910178723A CN109728747A CN 109728747 A CN109728747 A CN 109728747A CN 201910178723 A CN201910178723 A CN 201910178723A CN 109728747 A CN109728747 A CN 109728747A
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- Prior art keywords
- rotor
- magnetic stripe
- energy
- suspension system
- recyclable device
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- 239000000725 suspension Substances 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002520 smart material Substances 0.000 description 1
Abstract
The invention discloses a kind of piezoelectric type vibration energy recycle devices applied to automobile suspension system.Using rotary structure, compact overall structure is easy for installation.It is made of conversion of motion component and energy conversion component, and conversion of motion component realizes conversion of the linear motion between vehicle body and wheel to rotary motion, and energy conversion component realizes conversion of the vibrational energy to electric energy.Using the high piezoelectric material of energy density, solve the problems, such as that energy conversion efficiency is low.Piezoelectric patches is set to generate deformation using magnetic force, vibrational energy loses caused by reducing because of friction.Two times of rotor magnetic stripe quantity are set by piezoelectric patches and stator magnetic stripe quantity, so that piezoelectric patches can get continuously and the magnetic force in period in rotational movement process, improves energy recovery efficiency.With higher practical and promotional value.
Description
Technical field
The invention belongs to automobile energy recovery technology field, specially a kind of piezoelectric type applied on automobile suspension system
Vibration energy recovery device.
Background technique
The problems such as energy crisis, oil shortage and environmental pollution, brings huge challenge to the development of auto industry.In vapour
In vehicle development process, how to improve vehicle energy utilization factor and have been a hot spot of research problem.In order to improve automobile efficiency and combustion
The recycling of oily economy, automobile off-energy has very important significance to the development of current auto industry.For vehicle
For, heat, braking energy and vibrational energy are the main targets of energy regenerating.
Important component of the suspension system as vehicle chassis in support vehicle body, absorbs road vibration, concentration vehicle master
Vibrational energy etc. is wanted to play key effect.Suspension system energy recycle device can be used as the benefit of vehicle-mounted alternating current generator
It fills, the vibrational energy recycled can charge to vehicle battery, provide power for related load.Currently, vehicle suspension system
That there are energy densities is small for energy recycle device, and vibrational energy dissipates the problems such as low with energy recovery efficiency.
Summary of the invention
The present invention has that energy conversion efficiency is low for existing vibration energy recovery device, proposes a kind of application
Novel vibrating energy recycle device in automobile suspension system has structure simple, and reliable transmission is high, long service life and
The advantages that energy recovery rate is high.
The present invention is achieved by the following technical scheme:
A kind of piezoelectric type energy recyclable device applied to automobile suspension system, including conversion of motion component and energy conversion
Component, conversion of motion component include the lower case of lower lift ring, upper lift ring, ball-screw, feed screw nut and tubular, energy conversion portion
Part includes rotor, the upper housing of tubular, rotor magnetic stripe, stator magnetic stripe and piezoelectric patches, and lower lift ring includes the cylinder of upper end opening again
With the hanging ring below cylinder, upper lift ring includes the hanging ring above the lid and lid of lower ending opening again, and conversion of motion component is realized
Conversion of the linear motion to rotary motion between vehicle body and wheel, turn of the energy conversion component realization vibrational energy to electric energy
Change.Lower case internal upper part is equipped with bearing, and the upper end of ball-screw is mounted in bearing, and feed screw nut and ball-screw cooperation are pacified
Dress, the cylinder upper end of lower lift ring are fixed after protruding into below lower case with feed screw nut, and ball-screw lower shaft end is located at after fixing
In the cylinder of lower lift ring, upper housing is fixed with lower case, the upper end of ball-screw and is fixed positioned at the intracorporal rotor of upper casing, rotor
Outer circumference surface on be evenly arranged with axial rotor magnetic stripe, axial piezoelectric patches is fixed on upper housing inner peripheral surface, press
Electric on piece is also equipped with stator magnetic stripe, and rotor magnetic stripe and the opposite side same polarity of stator magnetic stripe, the lid of upper lift ring are fixed on
Above shell, the rotation overlapping of axles of ball-screw, bearing and rotor, linear movement direction and the ball-screw axis side of lower lift ring
To coincidence.
In use, upper lift ring is connect with vehicle body, lower lift ring is connect with vehicle bridge, and vibration energy recovery device is in parallel with damper
Installation.When lower case is fixed, the linear motion of lower lift ring drives feed screw nut to move along a straight line, and feed screw nut passes through rolling
Linear motion is changed into the rotary motion of lead screw by pearl, and lead screw communicates rotational motion to rotor.Rotor magnetic stripe and stator magnetic stripe
Since homopolar-repulsion generates the extruding force to piezoelectric patches, when the rotor rotates, component of the repulsion in piezoelectric patches polarization direction is close
Change like in periodic sinusoidal, the component of polarization direction makes piezoelectric patches, and deformation occurs, realizes that mechanical vibrational energy turns to electric energy
Change.Two electrode of piezoelectric patches is exported the electric energy of generation by conducting wire, can be charged to vehicle battery by collecting circuit, is phase
It closes load and power is provided.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, the installation of lead screw lower end are limited
Position plate, limits the longest rectilinear path of lower lift ring.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, is equipped with first in lower case
Bumper, the first bumper are located at the top of feed screw nut, the second bumper, the second bumper are equipped in the cylinder of lower lift ring
Positioned at the top of limit plate, prevent lower lift ring from sending damaged in collision equipment with lower case and limit plate in stroke.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, lower case it is intracavitary be equipped with it is close
Seal can prevent from entering dust inside recyclable device, influence recyclable device use.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, rotor and ball-screw upper end are logical
Cross spline connection.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, rotor magnetic stripe, stator magnetic stripe and
Piezoelectric patches uses identical appearance size, and length is consistent with rotor height.
A kind of above-mentioned piezoelectric type energy recyclable device applied to automobile suspension system, piezoelectric patches and stator magnetic stripe quantity
Two times consistent and being rotor magnetic stripe quantity, piezoelectric patches can obtain the period and continuously motivate, the efficiency produced electricl energy at this time
Highest.
The present invention have compared with prior art it is following the utility model has the advantages that
1, the present invention uses ball-screw and spline connection type, is installed in parallel with damper, compact-sized, installation letter
It is single, it is highly reliable.
2, the present invention makes piezoelectric patches generate deformation using magnetic force, reduces the frictional force in energy conversion component, reduces
Vibrational energy dissipates, and improves energy recovery efficiency.
3, the present invention converts core material using piezoelectric material as energy.The energy density of piezoelectric material is electromagnetic energy
It is three times, higher compared to linear energy recyclable device energy conversion efficiency using rotary structure, improve energy regenerating effect
Rate.
Detailed description of the invention
Fig. 1 shows structural schematic diagrams of the invention.
Fig. 2 indicates energy conversion elements partial enlarged view in Fig. 1.
Fig. 3 indicates that rotor and upper housing assemble diagrammatic top view.
Fig. 4 indicates magnetic force decomposition diagram of the present invention.
Fig. 5 indicates that stator magnetic stripe stress F of the present invention changes with time situation.
Fig. 6 indicates energy conversion component kinetic model schematic diagram of the present invention.
Fig. 7 indicates that the present invention is installed on the kinetic model schematic diagram after suspension system.
In figure: 1- upper lift ring, the first screw of 2-, 3- gasket, 4- rotor, 5- piezoelectric patches, 6- stator magnetic stripe, 7- rotor magnetic
Item, 8- bolt, 9- upper housing, 10- nut, 11- upper bearing (metal), 12- first bearing sleeve, 13- second bearing sleeve, 14- lower axle
It holds, the first bumper of 15-, the second screw of 16-, the first sealing ring of 17-, 18- feed screw nut, the second bumper of 19-, 20- ball,
21- lead screw, 22- lower case, the second sealing ring of 23-, 24- third screw, 25- limit plate, 26- lower lift ring, 27- locating shim.
Specific embodiment
Specific embodiments of the present invention are described in detail with reference to the accompanying drawing.
A kind of piezoelectric type energy recyclable device applied to automobile suspension system, including piezoelectric patches 5, magnetic stripe (6,7), bearing
(11,14), bearing sleeve (12,13), ball-screw 21, feed screw nut 18, upper housing 9, lower case 22, upper lift ring 1, lower lift ring
26, sealing ring (17,23), bumper (15,19), locating plate (27) etc..
Specific assembly relation is as shown in Figure 1, the cylinder of lower lift ring 26 protrudes into lower case 22 and feed screw nut 18 by second
Screw 16 is fixed, and feed screw nut 18 is mounted on ball-screw 21.21 lower end of ball-screw passes through the installation limit of third screw 24
Plate 25 is connect at the top of ball-screw 21 with rotor 4 by spline, and rotor 4 is by the first screw 2, gasket 3 and the shaft shoulder realization locating clip
Tightly.Ball-screw 21 is connect by upper bearing (metal) 11 and lower bearing 14 with lower case 22, and upper bearing (metal) 11 and lower bearing 14 are fixed on down
22 internal upper part of shell also sets up first bearing sleeve 12 and second bearing sleeve 13, upper axis between upper bearing (metal) 11 and lower bearing 14
Hold 11 and lower bearing 14 be angular contact ball bearing, lower case 22 and upper housing 9 are fixed by bolt 8, upper housing 9 and upper lift ring 1
Lid be threadedly coupled, lower lift ring 26, which moves along a straight line, is changed into the rotary motion of lead screw 21 by ball-screw, drives the rotation of rotor 4
Turn.First bumper 15 is installed in lower case 22, the first bumper 15 is located at the top of feed screw nut 18, lower lift ring 26
Second bumper 19 is installed, the second bumper 19 is located at the top of limit plate 25, and lower case is intracavitary to be equipped with first in cylinder
Sealing ring 17 and the second sealing ring 23.
As shown in Fig. 2, being evenly arranged with axial tooth socket on 4 periphery of rotor, inlayed in tooth socket with rotor with high
Rotor magnetic stripe 7,9 fixed stator magnetic stripe 6 of upper housing and piezoelectric patches 5, piezoelectric patches and stator magnetic stripe have identical length and width.
High-frequency pressure is generated with rotor magnetic stripe 7 and stator magnetic stripe 6 when rotor 4 rotates, piezoelectric patches is made to generate deformation.
As shown in figure 3, rotor magnetic stripe 7, stator magnetic stripe 6 are identical as 5 three's width of piezoelectric patches, 7 width of rotor magnetic stripe and rotor 4
Space width is identical, and stator magnetic stripe 6 is consistent with the quantity of piezoelectric patches 5 and is 2 times of 7 quantity of rotor magnetic stripe, in this way can be to piezoelectric patches
Apply continuous and the period pressure.The material of rotor 4 and upper housing 9 is aluminium, and the material of rotor magnetic stripe 7 and stator magnetic stripe 6 is
N5311 (neodymium iron boron), piezoelectric smart material are PZT4 (lead zirconate titanate).
As shown in figure 4, being energy conversion elements magnetic force decomposition diagram.It is applied to magnetic force F on stator magnetic stripeMCan divide
Solution is at two parts: FMxIn transverse direction, FMyIn the polarization direction of piezoelectric material axial direction.The angular velocity of rotation of rotor is 2 π n1, work as rotor
On magnetic stripe in A, D point, since the pole the N line of centres and the rotating magnet of two magnets are tangent, be applied to piezoelectric ceramics pole at this time
Change the power F=0 on direction；When the magnetic stripe on rotor turns to B point (B point be located at any position) between A and C, F at this time
=FMy=FMsinβ；The F=F when rotating magnet is in C pointM, FMFor the repulsion that stator magnetic stripe is subject to, Approximate Equivalent is definite value, and β is
Magnetic force FMWith the angle of horizontal position.
As shown in figure 5, change with time situation for magnetic force F, the period normal force being applied on piezoelectric patches, it is assumed that its with
The rotation of rotor and sinusoidal variations occur.Wherein, cycle T and F can be written as:
F=FM|sin(n1n2πt)|
In formula, n1It is the revolving speed of rotor, n2It is the quantity of rotor magnetic stripe.
As shown in fig. 6, being energy conversion component kinetic model schematic diagram, lower lift ring 26 is to feed screw nut 18 1 displacements
For Z, speed isLinear motion, ball-screw can generate an angle, θ, angular velocity omega, angular accelerationRotation fortune
It is dynamic.Lead screw 21 will drive rotor 4 to do same rotary motion at this time.So just by Vehicular vibration when linear motion be changed into rotation
Transhipment is dynamic.Rotor dynamics equation is described as follows:
T is the output torque of recyclable device,It is the output inertia torque of rotatable parts, TpIt is energy
The output torque of converting member.Jb, JpIt is the rotary inertia of ball-screw and rotor.
As shown in fig. 7, to be installed on the kinetic model schematic diagram after vehicle suspension system, wherein energy recycle device
Inertia mass is mi；The active force of energy conversion component is Fp；mbFor body quality；mtFor wheel mass；K is spring rate；kt
For tire stiffness；C is the damped coefficient of damper；Wheel and the coordinate of vehicle body vertical displacement are zt, zb, coordinate origin is selected in respectively
From equilbrium position its equation of motion is established according to Newton's second law:
The linear motion of vibration is changed into the rotary motion of recyclable device rotor, ring by ball screw arrangement by the present invention
Formula structure has better energy conversion efficiency and more compact structure relative to linear.Using piezoelectric material, with electromagnetic energy phase
Than substantially increasing energy density.The pressure for being applied to piezoelectric patches is generated by the repulsive force of rotor and stator, is reduced because of friction
Caused by vibrational energy disappear, solve the problems, such as that energy recovery efficiency is low.Piezoelectric patches and stator magnetic stripe quantity are rotor magnetic
Two times of quantity, so that piezoelectric patches can get continuous and the period magnetic force in rotational movement process, energy recovery efficiency is significantly
It improves.
The above is only specific embodiments of the present invention, and however, it is not limited to this, can be used for automobile cab suspension system, hair
The position of the generations such as motivation suspension system and motor suspension system vibration；It can also be used for the similar site of other related fieldss,
Carry out vibration energy regeneration.It is any that essentially identical technical problem is solved based on the present invention, or realize essentially identical skill
Art effect, made ground simple change, equivalent replacement or modification etc. all belong to the scope of protection of the present invention interior.
Claims (7)
1. a kind of piezoelectric type energy recyclable device applied to automobile suspension system, it is characterised in that including conversion of motion component and
Energy conversion component, conversion of motion component include lower lift ring (26), upper lift ring (1), ball-screw (21), feed screw nut (18) and
The lower case (22) of tubular, energy conversion component include rotor (4), the upper housing (9) of tubular, rotor magnetic stripe (7), stator magnetic stripe
(6) and piezoelectric patches (5), the cylinder including upper end opening and the hanging ring below cylinder, upper lift ring (1) include lower lift ring (26) again again
The lid and the hanging ring above lid of lower ending opening；Lower case (22) internal upper part is equipped with bearing, the upper end of ball-screw (21)
It is mounted in bearing, feed screw nut (18) is coupled with ball-screw (21), and the cylinder upper end of lower lift ring (26) is from lower case
(22) after lower section is protruded into and feed screw nut (18) is fixed, and ball-screw (21) lower shaft end is located at the cylinder of lower lift ring (26) after fixing
Interior, upper housing (9) and lower case (22) are fixed, and the upper end of ball-screw (21) and the rotor (4) being located in upper housing (9) are solid
It is fixed, it is evenly arranged with axial rotor magnetic stripe (7) on the outer circumference surface of rotor (4), is fixed on upper housing (9) inner peripheral surface
Axial piezoelectric patches (5) is also equipped with stator magnetic stripe (6) on piezoelectric patches (5), and the lid of upper lift ring (1) is fixed on upper housing (9)
Side.
2. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as described in claim 1, it is characterised in that:
Lead screw (21) lower end is equipped with limit plate (25), limits the longest rectilinear path of lower lift ring (26).
3. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as claimed in claim 2, it is characterised in that:
Be equipped with the first bumper (15) in the lower case (22), the first bumper (15) is located at the top of feed screw nut (18), under hang
It is equipped in the cylinder of ring (26) the second bumper (19), the second bumper (19) is located at the top of limit plate (25), prevents down
Hanging ring sends damaged in collision equipment with lower case (22) and limit plate (25) in stroke.
4. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as claimed in claim 1 or 2, feature exist
In: sealing ring is installed lower case is intracavitary, can prevent from entering dust inside recyclable device, influences recyclable device use.
5. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as claimed in claim 1 or 2, feature exist
In: rotor (4) is connect with ball-screw (21) upper end by spline.
6. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as claimed in claim 1 or 2, feature exist
In: rotor magnetic stripe (7), stator magnetic stripe (6) and piezoelectric patches (5) use identical appearance size, length and rotor (4) height one
It causes.
7. a kind of piezoelectric type energy recyclable device applied to automobile suspension system as claimed in claim 1 or 2, feature exist
In: piezoelectric patches (5) is consistent with stator magnetic stripe (6) quantity and is two times of rotor magnetic stripe (7) quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178723.3A CN109728747A (en) | 2019-03-11 | 2019-03-11 | A kind of piezoelectric type energy recyclable device applied to automobile suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178723.3A CN109728747A (en) | 2019-03-11 | 2019-03-11 | A kind of piezoelectric type energy recyclable device applied to automobile suspension system |
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| Publication Number | Publication Date |
|---|---|
| CN109728747A true CN109728747A (en) | 2019-05-07 |
Family
ID=66302164
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|---|---|---|---|
| CN201910178723.3A Pending CN109728747A (en) | 2019-03-11 | 2019-03-11 | A kind of piezoelectric type energy recyclable device applied to automobile suspension system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096587A (en) * | 2003-09-24 | 2005-04-14 | Toyota Motor Corp | Vehicle suspension device |
| US20100244457A1 (en) * | 2009-03-25 | 2010-09-30 | Bhat Nikhil | Energy harvesting system |
| KR101339260B1 (en) * | 2012-08-30 | 2013-12-09 | 현대자동차 주식회사 | Bellows assembly for vehicle |
| CN104723820A (en) * | 2015-03-16 | 2015-06-24 | 华南理工大学 | Energy-feed damping device capable of producing energy and energy capture method thereof |
| CN107916608A (en) * | 2017-11-16 | 2018-04-17 | 太原理工大学 | The exciting device of vertical vibration roller |
| CN207884432U (en) * | 2018-01-12 | 2018-09-18 | 吉林大学 | Ball screw type rotary generating device for Vibration of Vehicle Suspensions energy regenerating |
-
2019
- 2019-03-11 CN CN201910178723.3A patent/CN109728747A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096587A (en) * | 2003-09-24 | 2005-04-14 | Toyota Motor Corp | Vehicle suspension device |
| US20100244457A1 (en) * | 2009-03-25 | 2010-09-30 | Bhat Nikhil | Energy harvesting system |
| KR101339260B1 (en) * | 2012-08-30 | 2013-12-09 | 현대자동차 주식회사 | Bellows assembly for vehicle |
| CN104723820A (en) * | 2015-03-16 | 2015-06-24 | 华南理工大学 | Energy-feed damping device capable of producing energy and energy capture method thereof |
| CN107916608A (en) * | 2017-11-16 | 2018-04-17 | 太原理工大学 | The exciting device of vertical vibration roller |
| CN207884432U (en) * | 2018-01-12 | 2018-09-18 | 吉林大学 | Ball screw type rotary generating device for Vibration of Vehicle Suspensions energy regenerating |
Non-Patent Citations (2)
| Title |
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| 王铁;柴少彪;: "轮边减速器行星齿轮结构动力学分析", 机械传动, no. 01 * |
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