CN107289060B - Electric vehicle - Google Patents
Electric vehicle Download PDFInfo
- Publication number
- CN107289060B CN107289060B CN201710709045.XA CN201710709045A CN107289060B CN 107289060 B CN107289060 B CN 107289060B CN 201710709045 A CN201710709045 A CN 201710709045A CN 107289060 B CN107289060 B CN 107289060B
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- damper
- magnetorheological fluid
- section
- 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.)
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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
Abstract
The invention discloses one kind to be used for electric vehicle.Comprising: cylinder body, cover plate, piston, piston rod, the cylinder body is made of the first cylinder body, magnet exciting coil, heat conduction with phase change net, the second cylinder body.The thermally conductive, principle of accumulation of heat using phase-change material through the invention, can in real time, the operating temperature that efficiently controls magnetorheological fluid in damper be maintained in suitable range, so that the damping capacity of damper be made to keep preferable states.
Description
The application be that application No. is 2017100396411 entitled electric vehicles on 01 19th, 2017 the applying date
The divisional application of damper.
Technical field
The invention belongs to automotive suspension technical field, in particular to a kind of damper for electric vehicle.
Background technique
Due to the characteristic of driving motor, the accelerating ability of electric vehicle is significantly better than regular fuel vehicle.However, excessive starting
Acceleration can also make jump (being commonly called as " coming back ") phenomenon on automotive front end serious, therefore electric vehicle needs subtract more better than fuel vehicle
Shake system.The characteristics of magneto-rheological vibration damper is simple with its structure, it is quick to adjust, good damping result, is applied to electricity more and more
On motor-car.Magnetorheological fluid therein is a kind of dispersion material being made of soft magnetism suspended phase, organic suspension medium and additive
Material is powered under the action of magnetic force outside, and viscosity can be continuous, rapidly, reversibly adjust.But piston is generated when moving back and forth
Desaturation occurs for the heat that higher temperature and electromagnetic coil generate when being powered, the viscosity that will lead to magnetorheological fluid, and severe cold
It is thickened using the viscosity that bad border (such as winter of northern China) also results in magnetorheological fluid.Either desaturation or thick
Change, can all influence the damping capacity of magnetorheological fluid, so that the damping property of entire vehicle suspension is fallen flat (partially soft or inclined
Firmly), to deteriorate driving experience.
A kind of my another application " magneto-rheological vibration damper for electric vehicle ", although can accurately temperature control, by
Structure is complicated in existing which employs thermal cycle component, heat conducting pipe, temperature sensor, controller etc., and manufacturing cost is high to be lacked
Point.And in practice, it only needs to keep the operating temperature of magnetorheological fluid to be in a suitable section sometimes, is not necessarily intended to
The operating temperature of magnetorheological fluid is asked to be constantly in optimum temperature.Therefore, at " a kind of magneto-rheological vibration damper for electric vehicle "
On the basis of, it is necessary to propose that a kind of structure is simple, manufacturing cost is low but also has the damper structure of certain temperature control heat sinking function.
Summary of the invention
To solve the above problems, the damper includes: cylinder body the present invention provides a kind of electric vehicle shock absorber, it is
The cylindrical shape of closed at one end, another end opening；Cover plate seals up the open end of the cylinder body；Piston, set on the chamber of cylinder body
It is interior；Piston rod, one end are connected to piston, and the other end passes through the cover plate and extends；Magnetorheological fluid is filled in cylinder body
It is intracavitary；
The outer diameter of the piston is slightly less than the internal diameter of cylinder body, to form the interchannel to circulate with having damping for magnetorheological fluid
Gap；
It is characterized in that, the cylinder body includes:
First cylinder body is located at innermost layer, is made of the material of high permeability high thermal conductivity；
Magnet exciting coil, uniformly around the outer surface for the close closed end for being set to first cylinder body；
Reticular structure is made by phase-change material in heat conduction with phase change net under low-temperature condition, and circumferentially package is covered on described
On the outer surface of first cylinder body；The width of the reticular structure corresponds to the circumference in the section of first cylinder body, described
The length of reticular structure is less than the axial length of first cylinder body；And the reticular structure is divided into the compact district and both sides at middle part
Rarefaction, the compact district corresponds to the central section of piston stroke, and the rarefaction corresponds to the middle region of piston stroke
Section other than section, the mesh of the compact district are less than the mesh of the rarefaction.
Second cylinder body wraps up first cylinder body, is made of resin material hot-working.
The damper through the invention, can in real time, effectively correct the work temperature of magnetorheological fluid in damper
Degree and viscosity accurately keep the damping capacity of damper, optimize the damping property of vehicle, improve driving experience.
Detailed description of the invention
Fig. 1 shows composed structure schematic diagram according to the present invention；
Fig. 2 shows the structural schematic diagrams of cylinder body according to the present invention；
Fig. 3 shows the schematic diagram of one embodiment of heat conduction with phase change net according to the present invention；
Fig. 4 shows the schematic diagram of another embodiment of heat conduction with phase change net according to the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the structure of detailed description of the present invention magneto-rheological vibration damper and the function realized
Energy.
As shown in Figure 1, the magneto-rheological vibration damper for electric vehicle includes: cylinder body 1, it is closed at one end, another end opening
Cylindrical shape；Cover plate 2 seals up the open end of the cylinder body；Piston 3, set on the intracavitary of cylinder body；Piston rod 4, one end
It is connected to piston 3, the other end passes through the cover plate 2 and extends；The inner cavity of cylinder body 1 is divided into cavity 5 and cavity 7 by piston 3,
Magnetorheological fluid is filled in the cavity of cylinder body 1, and the outer diameter of piston 3 is slightly less than the internal diameter of cylinder body 1, forms path clearance 6, channel
Gap 6 makes 7 connection of cavity 5 and cavity.Since the aperture of path clearance 6 is smaller, magnetorheological fluid is flowing through the path clearance 6
When, path clearance 6 can generate damping.
As shown in Figure 2,3, shown cylinder body 1 includes the first cylinder body 12, is located at innermost layer, by high permeability high thermal conductivity
Material, such as ferrotungsten are made；Second cylinder body 13 wraps up first cylinder body 12, is made of resin material hot-working；
Magnet exciting coil 14, uniformly around the outer surface for the close closed end for being set to first cylinder body 12；This field
For technical staff, it is apparent that magnet exciting coil 14 will draw one section to be connected on external power supply (not shown), fairlead can be
It reserves and in the hot procedure of two cylinder bodies.
Reticular structure is made by phase-change material in heat conduction with phase change net 15 under low-temperature condition, and circumferentially package is covered on institute
On the outer surface for stating the first cylinder body 12；The width D of the reticular structure is equal to the circumference in the section of first cylinder body 12,
The length L of the reticular structure is less than the axial length of first cylinder body；And the reticular structure is divided into the compact district at middle part
With the rarefaction on both sides, the length l of the compact district corresponds to the central section L2 of piston stroke, and the rarefaction corresponds to work
The section other than the central section of stroke is filled in, the mesh of the compact district is less than the mesh of the rarefaction, this is because piston
The middle section of stroke is the concentration zones that piston acting generates heat, and such reticular structure can be in the premise for guaranteeing heat exchange effect
Under, it is reduced as far as the dosage of phase-change material, reduces cost.
Another embodiment of heat conduction with phase change net as shown in Figure 4, in this embodiment, the heat conduction with phase change net, which is divided into, to be leaned on
The condensed section of nearly magnet exciting coil setting, and sparse section far from magnet exciting coil, this is to be powered and occurred to magnet exciting coil
Heat carries out heat exchange, and under the premise of guaranteeing heat exchange effect, is reduced as far as the dosage of phase-change material, reduces cost.
Preferably, the material of the heat conduction with phase change net is solid-solid phase transition material, e.g. for cellulose acetate (CDA)
For substrate, the phase-change material that poly glycol monomethyl ether (MPEG) is operation material.By suitably matching, heat conduction with phase change can be made
The starting phase transition temperature of net is between 22 DEG C to 26 DEG C.
In damper work, heat conduction with phase change net 15 can be absorbed in time by piston acting, magnet exciting coil heating power institute band
The heat for having deterioration to influence magnetorheological fluid come, effectively corrects the operating temperature and viscosity of magnetorheological fluid in damper, compared with
The damping capacity for accurately keeping damper, improves driving experience.
The present invention does not need additional heat circulating system and temperature-detecting device, controller etc., can be dramatically
Simplify equipment, reduces manufacture difficulty, while can also reach the basic demand of the constant temperature of damper.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as generally describing,
Various variations and/or modification can be carried out to 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 (1)
1. electric vehicle, including damper, the damper includes: cylinder body, is the cylindrical shape of closed at one end, another end opening；
Cover plate seals up the open end of the cylinder body；Piston, set on the intracavitary of cylinder body；Piston rod, one end are connected to piston,
The other end passes through the cover plate and extends；Magnetorheological fluid is filled in the intracavitary of cylinder body；The outer diameter of the piston is slightly less than cylinder
The internal diameter of body, to form the path clearance to circulate with having damping for magnetorheological fluid；
It is characterized in that, the cylinder body includes:
First cylinder body is located at innermost layer, is made of the material of high permeability high thermal conductivity；
Magnet exciting coil, uniformly around the outer surface for the close closed end for being set to first cylinder body；
Reticular structure is made by phase-change material in heat conduction with phase change net under low-temperature condition, and circumferentially package is covered on described first
On the outer surface of cylinder body；The width of the reticular structure corresponds to the circumference in the section of first cylinder body, described netted
The length of structure is less than the axial length of first cylinder body；And the reticular structure be divided into middle part compact district and both sides it is dilute
Dredge area, the compact district corresponds to the central section of piston stroke, the rarefaction correspond to the central section of piston stroke with
Outer section, the mesh of the compact district are less than the mesh of the rarefaction；
Second cylinder body wraps up first cylinder body, is made of resin material hot-working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709045.XA CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709045.XA CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710039641.1A CN106555833B (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 |
|---|---|
| CN107289060A CN107289060A (en) | 2017-10-24 |
| CN107289060B true CN107289060B (en) | 2019-01-11 |
Family
ID=58446388
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710598903.8A Active CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710598904.2A Active CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710709045.XA Active CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710039641.1A Expired - Fee Related CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710598903.8A Active CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710598904.2A Active CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039641.1A Expired - Fee Related CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN107387646B (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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011089547A (en) * | 2009-10-20 | 2011-05-06 | Nitto Denko Corp | Vibration damping sheet, method for damping vibration of vibrating member and method of using the member |
| 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 |
| 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 |
| CN205089887U (en) * | 2015-11-02 | 2016-03-16 | 梅照丰 | Install in multi -functional electronic round magnetorheological damper |
| CN105508487A (en) * | 2016-01-24 | 2016-04-20 | 中国地质大学（武汉） | Dual-damping and dual-power-generating combined damping device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| 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 |
| 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 |
| 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 |
| 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 |
| CN104179878B (en) * | 2014-09-09 | 2016-02-24 | 安徽工程大学 | A kind of self-cooling type MR damper |
| CN104455178B (en) * | 2014-12-11 | 2016-06-01 | 中国民航大学 | A kind of damp adjustable magnetorheological shimmy 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 |
| CN105570376B (en) * | 2015-12-31 | 2017-10-13 | 浙江科技学院 | Electrorheological fluid vibration damper |
-
2017
- 2017-01-19 CN CN201710598903.8A patent/CN107387646B/en active Active
- 2017-01-19 CN CN201710598904.2A patent/CN107228154B/en active Active
- 2017-01-19 CN CN201710709045.XA patent/CN107289060B/en active Active
- 2017-01-19 CN CN201710039641.1A patent/CN106555833B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011089547A (en) * | 2009-10-20 | 2011-05-06 | Nitto Denko Corp | Vibration damping sheet, method for damping vibration of vibrating member and method of using the member |
| 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 |
| 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 |
| CN205089887U (en) * | 2015-11-02 | 2016-03-16 | 梅照丰 | Install in multi -functional electronic round magnetorheological damper |
| CN105508487A (en) * | 2016-01-24 | 2016-04-20 | 中国地质大学（武汉） | Dual-damping and dual-power-generating combined damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106555833B (en) | 2017-12-01 |
| CN106555833A (en) | 2017-04-05 |
| CN107289060A (en) | 2017-10-24 |
| CN107387646A (en) | 2017-11-24 |
| CN107387646B (en) | 2018-07-10 |
| CN107228154A (en) | 2017-10-03 |
| CN107228154B (en) | 2018-06-01 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181101 Address after: 312400 No. 207, Xin Yan village, Jin Ting Town, Shengzhou, Shaoxing, Zhejiang Applicant after: Wang Xiaodong Address before: 330218 Nanchang, Jiangxi province Nanchang County Tacheng Township Hu Po Village 194 Applicant before: Qiu Liexiu |
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Effective date of registration: 20181120 Address after: 325000 Room 701, Modern 8 Blocks, Yindu Huayuan, Danan Street, Lucheng District, Wenzhou City, Zhejiang Province Applicant after: Jin Chaofan Address before: 312400 No. 207, Xin Yan village, Jin Ting Town, Shengzhou, Shaoxing, Zhejiang Applicant before: Wang Xiaodong |
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Effective date of registration: 20200527 Address after: 537000 in Xijiang Industrial Park, national ecological industry (sugar manufacturing) demonstration park, Guigang City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi diamond leopard New Energy Technology Co., Ltd Address before: 325000 Room 701, Modern 8 Blocks, Yindu Huayuan, Danan Street, Lucheng District, Wenzhou City, Zhejiang Province Patentee before: Jin Chaofan |