CN107228154A - Electric vehicle shock absorber - Google Patents
Electric vehicle shock absorber Download PDFInfo
- Publication number
- CN107228154A CN107228154A CN201710598904.2A CN201710598904A CN107228154A CN 107228154 A CN107228154 A CN 107228154A CN 201710598904 A CN201710598904 A CN 201710598904A CN 107228154 A CN107228154 A CN 107228154A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- shock absorber
- rarefaction
- heat conduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 18
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 14
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 6
- 210000000576 arachnoid Anatomy 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 3
- 229920002301 cellulose acetate Polymers 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000010695 polyglycol Substances 0.000 claims description 3
- 229920000151 polyglycol Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 239000012782 phase change material Substances 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/42—Cooling arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of magneto-rheological vibration damper for electric car.It includes：Cylinder body, cover plate, piston, piston rod, the cylinder body are made up of the first cylinder body, magnet exciting coil, heat conduction with phase change net, the second cylinder body.By principle of the present invention using phase-change material heat conduction, accumulation of heat, can in real time, the operating temperature that efficiently controls magnetic flow liquid in shock absorber be maintained in suitable scope so that the damping capacity of shock absorber keeps preferable states.
Description
Technical field
The application is divisional application, and parent application number is 201710039641.1, January 19 2017 applying date, invention
It is entitled：Electric vehicle shock absorber.
The invention belongs to automotive suspension technical field, more particularly to a kind of shock absorber for electric car.
Background technology
Due to the characteristic of motor, the acceleration of electric car is significantly better than regular fuel car.However, excessive starting
Acceleration can also to jump (being commonly called as " coming back ") phenomenon on automotive front end seriously, therefore electric car needs subtract more more preferable than fuel vehicle
Shake system.Magneto-rheological vibration damper is so that its is simple in construction, regulation quick, good damping result the characteristics of, electricity is applied to more and more
On motor-car.Magnetic flow liquid therein is a kind of dispersion material being made up of soft magnetism suspended phase, organic suspension medium and additive
Material, outside power up magnetic force in the presence of, its viscosity can continuously, rapidly, reversibly adjust.But piston is produced when moving back and forth
Higher temperature, and the heat that produces during magnet coil energization, can cause the viscosity of magnetic flow liquid to occur desaturation, and severe cold
The viscosity for also resulting in magnetic flow liquid using bad border (such as the winter of northern China) is thickened.Either desaturation or thick
Change, can all influence the damping capacity of magnetic flow liquid, make whole vehicle suspension damping property fall flat it is (partially soft or inclined
Firmly), so as to deteriorate driving experience.
My another application《A kind of magneto-rheological vibration damper for electric car》, although can accurately temperature control, but by
It is complicated in which employs thermal cycle component, heat conducting pipe, temperature sensor etc., existing, the high shortcoming of manufacturing cost.And in reality
During border is used, often only need to keep the operating temperature of magnetic flow liquid to be in a suitable interval, it is not required that magnetorheological
The operating temperature of liquid is constantly in optimum temperature.Therefore, exist《A kind of magneto-rheological vibration damper for electric car》On the basis of, have
Necessity proposes that a kind of simple in construction, manufacturing cost is low but also has the damper structure of certain temperature control heat sinking function.
The content of the invention
To solve the above problems, the invention provides a kind of electric vehicle shock absorber, the shock absorber includes：Cylinder body, it is
One end closing, the cylindrical shape of another end opening；Cover plate, it seals up the openend of the cylinder body；Piston, located at the chamber of cylinder body
It is interior；Piston rod, its one end is connected to piston, and the other end is through the cover plate and extends；Magnetic flow liquid, is filled in cylinder body
Intracavitary；
The external diameter of the piston is slightly less than the internal diameter of cylinder body, to form the interchannel circulated with having damping for magnetic flow liquid
Gap；
Characterized in that, the cylinder body includes：
First cylinder body, it is located at innermost layer, is made up of the material of high permeability high thermal conductivity；
Magnet exciting coil, its outer surface uniformly around the close blind end located at first cylinder body；
Heat conduction with phase change net, it with cellulose acetate (CDA) is base material, poly glycol monomethyl ether (MPEG) for operation material that it, which is,
The network structure that is made under low-temperature condition of phase-change material, circumferentially parcel be covered in the outer surface of first cylinder body
On；
The outline of the network structure is rectangle, and the width of rectangle corresponds to the circumference in the section of first cylinder body
Long, length is less than the axial length of first cylinder body；The network structure is two diagonal by rectangle, the midpoint on long side
Line and multiple hexagonal groups into arachnoid, be divided into middle part compact district and both sides rarefaction, the compact district correspond to
The central section of piston stroke, the rarefaction correspond to the section beyond the central section of piston stroke, the compact district
Mesh is less than the mesh of the rarefaction.
Second cylinder body, it wraps up first cylinder body, is made up of resin material hot-working.
By shock absorber of the present invention, the work temperature of magnetic flow liquid in shock absorber can in real time, be effectively corrected
Degree and viscosity, keep the damping capacity of shock absorber, are optimized the damping property of vehicle, improve driving experience exactly.
Brief description of the drawings
Fig. 1 shows the composition structural representation according to the present invention；
Fig. 2 shows the structural representation of the cylinder body according to the present invention；
Fig. 3 shows the schematic diagram of one embodiment of the heat conduction with phase change net according to the present invention.
Embodiment
Below in conjunction with specific embodiment, the work(that the structure of the magneto-rheological vibration damper of the present invention is described in detail and is realized
Energy.
As shown in figure 1, the magneto-rheological vibration damper for electric car includes：Cylinder body 1, it is one end closing, another end opening
Cylindrical shape；Cover plate 2, it seals up the openend of the cylinder body；Piston 3, located at the intracavitary of cylinder body；Piston rod 4, its one end
Piston 3 is connected to, the other end is through the cover plate 2 and extends；The inner chamber of cylinder body 1 is divided into cavity 5 and cavity 7 by piston 3,
Magnetic flow liquid is filled in the cavity of cylinder body 1, and the external diameter of piston 3 is slightly less than the internal diameter of cylinder body 1, forms path clearance 6, passage
Gap 6 causes cavity 5 and the UNICOM of cavity 7.Because the aperture of path clearance 6 is smaller, magnetic flow liquid is flowing through the path clearance 6
When, path clearance 6 can produce damping.
As shown in Figure 2,3, shown cylinder body 1 includes the first cylinder body 12, and it is located at innermost layer, by high permeability high thermal conductivity
Material, such as ferrotungsten are made；Second cylinder body 13, it wraps up first cylinder body 12, is made up of resin material hot-working；
Magnet exciting coil 14, its outer surface uniformly around the close blind end located at first cylinder body 12；This area
Technical staff is, it is apparent that magnet exciting coil 14 will draw one section to be connected on external power source (not shown), and fairlead can be
Reserve and in the hot procedure of two cylinder bodies.
Heat conduction with phase change net 15, it with cellulose acetate (CDA) is base material, poly glycol monomethyl ether (MPEG) for working substance that it, which is,
The network structure that the phase-change material of matter is made under low-temperature condition, circumferentially wraps up the outside table for being covered in first cylinder body 12
On face；
The outline of the network structure is rectangle, and the width D of rectangle corresponds to the circle in the section of first cylinder body 12
Girth, length L is less than the axial length of first cylinder body；The network structure is two diagonal by rectangle, long side
Midpoint line and multiple hexagonal groups into arachnoid, be divided into middle part compact district and both sides rarefaction, the compact district
Length l correspond to the central section L2 of piston stroke, and the rarefaction correspond to the section beyond the central section of piston stroke,
The mesh of the compact district is less than the mesh of the rarefaction, because the stage casing of piston stroke, which is piston acting, produces heat
Concentration zones, such network structure can ensure heat exchange effect on the premise of, be reduced as far as the use of phase-change material
Amount, reduces cost.
Preferably, phase-change material can be such that the starting phase transition temperature of heat conduction with phase change net is arrived for 22 DEG C by suitably matching
Between 26 DEG C.
When shock absorber works, heat conduction with phase change net 15 can absorb in time done work by piston, magnet exciting coil heating power institute band
The heat for having deterioration to influence on magnetic flow liquid come, effectively corrects the operating temperature and viscosity of magnetic flow liquid in shock absorber, compared with
The damping capacity of shock absorber is kept exactly, improves driving experience.
The present invention does not need extra heat circulating system, and temperature-detecting device, controller etc., can be dramatically
Simplify equipment, manufacture difficulty is reduced, while can also reach the basic demand of the constant temperature of shock absorber.
One skilled in the art would recognize that without departing substantially from as the spirit and scope of the invention described in general manner,
Various changes and/or modification can be carried out to the invention shown in each specific embodiment.Therefore, in terms of all
For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature
Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent
It is explicitely stated in claim or each embodiment here.
Claims (2)
1. electric vehicle shock absorber, the shock absorber includes：Cylinder body, it is one end closing, the cylindrical shape of another end opening；Covering
Plate, it seals up the openend of the cylinder body；Piston, located at the intracavitary of cylinder body；Piston rod, its one end is connected to piston, another
End is through the cover plate and extends；Magnetic flow liquid, is filled in the intracavitary of cylinder body；The external diameter of the piston is slightly less than cylinder body
Internal diameter, to form the path clearance circulated with having damping for magnetic flow liquid；
Characterized in that, the cylinder body includes：
First cylinder body, it is located at innermost layer, is made up of the material of high permeability high thermal conductivity；
Magnet exciting coil, its outer surface uniformly around the close blind end located at first cylinder body；
Heat conduction with phase change net, it is with cellulose acetate (CDA) is base material, poly glycol monomethyl ether (MPEG) is operation material phase
Become the network structure that material is made under low-temperature condition, circumferentially parcel is covered on the outer surface of first cylinder body；
The outline of the network structure is rectangle, and the width of rectangle corresponds to the circumference in the section of first cylinder body, long
Axial length of the degree less than first cylinder body；The network structure is two diagonal, the midpoint line on long side by rectangle
With multiple hexagonal groups into arachnoid, be divided into middle part compact district and both sides rarefaction, the compact district correspond to piston
The central section of stroke, the rarefaction correspond to the section beyond the central section of piston stroke, the mesh of the compact district
Less than the mesh of the rarefaction.
Second cylinder body, it wraps up first cylinder body, is made up of resin material hot-working.
2. electric vehicle shock absorber as claimed in claim 1, it is characterised in that the starting phase transition temperature of the heat conduction with phase change net is excellent
Elect as between 22 DEG C to 26 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710598904.2A CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039641.1A CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710598904.2A CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039641.1A Division CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107228154A true CN107228154A (en) | 2017-10-03 |
| CN107228154B CN107228154B (en) | 2018-06-01 |
Family
ID=58446388
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710598904.2A Active CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710039641.1A Expired - Fee Related CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710709045.XA Active CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710598903.8A Active CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039641.1A Expired - Fee Related CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710709045.XA Active CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710598903.8A Active CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN107228154B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058359B (en) * | 2018-10-17 | 2020-11-03 | 哈尔滨工业大学 | Phase-change temperature-control fluid damper |
| CN109595847A (en) * | 2018-12-04 | 2019-04-09 | 西安交通大学 | A kind of phase-change thermal storage defroster for domestic air source heat pump system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| CN102695893A (en) * | 2009-10-20 | 2012-09-26 | 日东电工株式会社 | Vibration damping sheet, method for damping vibration of vibrating member, and method for utilizing the vibrating member |
| DE102011053947A1 (en) * | 2011-09-27 | 2013-03-28 | Contitech Luftfedersysteme Gmbh | Article e.g. a pneumatic spring bag, comprises a base body made of a polymeric material with elastic properties, where microparticles e.g. microcapsules are interfered in polymeric material of base body and comprise phase-change material |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6971231B2 (en) * | 2003-12-15 | 2005-12-06 | Delphi Technologies, Inc. | Piston and rod assembly and method |
| CN102374255B (en) * | 2010-08-05 | 2015-05-27 | 香港中文大学 | Self-powered and self-sensing magnetorheological (MR) fluid damper |
| CN102661353B (en) * | 2012-05-30 | 2013-11-06 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
| CN202648484U (en) * | 2012-06-12 | 2013-01-02 | 陈万仁 | Mesh used for extracting heat of transformation of compressed steam to perform radiant heat transfer |
| CN202790297U (en) * | 2012-09-17 | 2013-03-13 | 成都市翻鑫家科技有限公司 | Temperature-controllable magnetorheological fluid bumper |
| CN104135191A (en) * | 2014-08-18 | 2014-11-05 | 中国地质大学（武汉） | Foam metal composite phase change material heat storage temperature-difference power generation device |
| CN104179878B (en) * | 2014-09-09 | 2016-02-24 | 安徽工程大学 | A kind of self-cooling type MR damper |
| CN104791410B (en) * | 2015-04-29 | 2016-09-07 | 柳州孔辉汽车科技有限公司 | A kind of MR fluid shock absorber |
| CN205089887U (en) * | 2015-11-02 | 2016-03-16 | 梅照丰 | Install in multi -functional electronic round magnetorheological damper |
| CN105570376B (en) * | 2015-12-31 | 2017-10-13 | 浙江科技学院 | Electrorheological fluid vibration damper |
| CN105508487B (en) * | 2016-01-24 | 2017-09-29 | 中国地质大学（武汉） | Double dampings and double compound damping devices that generate electricity |
-
2017
- 2017-01-19 CN CN201710598904.2A patent/CN107228154B/en active Active
- 2017-01-19 CN CN201710039641.1A patent/CN106555833B/en not_active Expired - Fee Related
- 2017-01-19 CN CN201710709045.XA patent/CN107289060B/en active Active
- 2017-01-19 CN CN201710598903.8A patent/CN107387646B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| CN102695893A (en) * | 2009-10-20 | 2012-09-26 | 日东电工株式会社 | Vibration damping sheet, method for damping vibration of vibrating member, and method for utilizing the vibrating member |
| DE102011053947A1 (en) * | 2011-09-27 | 2013-03-28 | Contitech Luftfedersysteme Gmbh | Article e.g. a pneumatic spring bag, comprises a base body made of a polymeric material with elastic properties, where microparticles e.g. microcapsules are interfered in polymeric material of base body and comprise phase-change material |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107387646A (en) | 2017-11-24 |
| CN107387646B (en) | 2018-07-10 |
| CN107228154B (en) | 2018-06-01 |
| CN107289060B (en) | 2019-01-11 |
| CN107289060A (en) | 2017-10-24 |
| CN106555833B (en) | 2017-12-01 |
| CN106555833A (en) | 2017-04-05 |
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Effective date of registration: 20180507 Address after: 226500 Rugao City, Nantong, Jiangsu Province, such as the town of Deng yuan community 16 groups (Rugao economic and Trade Development Company No. 2 standard workshop 101 room) Applicant after: Jiangsu Sai Lin Automobile Technology Co., Ltd. Address before: 230031 Xi Yi Road, Shushan District, Hefei, Anhui Province, No. 66 Applicant before: Yang Jing |
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