CN107061600B - A kind of accurate temperature-adjusting type electric vehicle shock absorber - Google Patents
A kind of accurate temperature-adjusting type electric vehicle shock absorber Download PDFInfo
- Publication number
- CN107061600B CN107061600B CN201710510595.9A CN201710510595A CN107061600B CN 107061600 B CN107061600 B CN 107061600B CN 201710510595 A CN201710510595 A CN 201710510595A CN 107061600 B CN107061600 B CN 107061600B
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- Prior art keywords
- cylinder body
- heat conducting
- conducting pipe
- piston
- thermal cycle
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- 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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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 6
- 230000035939 shock Effects 0.000 title claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000013016 damping Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process 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
- 239000007787 solid 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
- F16F9/3292—Sensor arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of accurate temperature-adjusting type electric vehicle shock absorber.It includes：Cylinder body, cover plate, piston, piston rod, the cylinder body are made of the first cylinder body, magnet exciting coil, heat conducting pipe, the second cylinder body, further include temperature sensor, current regulation unit, thermal cycle component, controller.The viscosity of magnetic flow liquid in damper can in real time, be effectively corrected by the present invention, keeps the damping capacity of damper exactly.
Description
Technical field
The application is divisional application, and parent application number is 201710039642.6, January 19 2017 applying date, invention
It is entitled：A kind of magneto-rheological vibration damper for electric car.
The invention belongs to automotive suspension technical field, more particularly to a kind of accurate temperature-adjusting type electric vehicle shock absorber.
Background technology
Due to driving the characteristic of motor, the accelerating ability of electric car is significantly better than regular fuel car.However, excessive starting
Acceleration can also make it that jump (being commonly called as " coming back ") phenomenon is serious on automotive front end, therefore electric car needs subtract more more preferable than fuel vehicle
Shake system.Magneto-rheological vibration damper is applied to electricity more and more with the characteristics of its is simple in structure, it is quick to adjust, good damping result
On motor-car.Magnetic flow liquid therein is a kind of dispersion material being made of soft magnetism suspended phase, organic suspension medium and additive
Material, outside power up magnetic force under the action of, its viscosity can continuously, rapidly, reversibly adjust.But piston is produced when moving back and forth
Higher temperature, and electromagnetic coil be powered caused by heat, the viscosity of magnetic flow liquid can be caused to occur desaturation, and severe cold
The viscosity that magnetic flow liquid is also resulted in using bad border (such as 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.
The content of the invention
To solve the above problems, the present invention provides a kind of accurate temperature-adjusting type electric vehicle shock absorber, it includes：Cylinder body, its
For one end closing, the cylindrical shape of another end opening；Cover plate, it seals up the openend of the cylinder body；Piston, arranged on cylinder body
Intracavitary；Piston rod, its one end are connected to piston, and the other end is through the cover plate and extends；Magnetic flow liquid, is filled in cylinder body
Intracavitary；
The outside diameter of the piston is slightly less than the internal diameter of cylinder body, to form the interchannel to circulate with having damping for magnetic flow liquid
Gap；
It is characterized in that, the cylinder body includes：
First cylinder body, it is located at innermost layer, is made of the material of high permeability high thermal conductivity；
Magnet exciting coil, its outer surface uniformly around the close blind end arranged on first cylinder body；
Heat conducting pipe, the heat conducting pipe is the thin copper pipe of flat, and has rifling in pipe, for causing the heat exchange in pipe
Medium in addition to being translatable along heat conducting pipe, also produces autorotation in circulation under the guiding of rifling, can so use as far as possible
Small flow/flow velocity reaches expected heat exchange effect, so as to reduce the power needed for thermal cycle component, reduces energy consumption；It is described
Heat conducting pipe closes on the outer surface that excitation wire encloses the land, is unevenly set around first cylinder body, corresponding to piston stroke
The external side surface portions of first cylinder body at middle part, heat conducting pipe densely winding, in the sparsely winding of remainder heat conducting pipe, so
The length of heat conducting pipe on the premise of heat exchange effect is ensured, can be shortened as much as possible, reduce cost.
Second cylinder body, it wraps up first cylinder body, is made of resin material hot-working；
Temperature sensor, on the inner face of the piston, for detecting the work temperature of the magnetic flow liquid in real time
Degree；
Current regulation unit, the electric current for coming from power supply, supplying magnet exciting coil is adjusted according to control signal, to adjust excitation
The magnetic field that coil produces, so as to adjust the damping capacity of magnetic flow liquid；
Thermal cycle component, it is fluidly connected to the heat conducting pipe, and is adjusted and circulated in heat conducting pipe according to control signal
Heat-exchange medium flow；
Controller, its signal are connected to the temperature sensor, the current regulation unit and the thermal cycle component, and
It is configured as：When the operating temperature is higher than first predetermined value, thermal cycle component is controlled, makes to circulate in the heat friendship in heat conducting pipe
Change the flow increase of medium；When the operating temperature is less than second predetermined value, current regulation unit is controlled, makes supply excitation wire
The electric current of circle reduces.
The operating temperature is often higher than 1 percentage point of first predetermined value, and controller control thermal cycle component, which makes to circulate in, leads
The flow of heat-exchange medium in heat pipe increases 1 percentage point；The operating temperature is often less than 1 percentage point of second predetermined value,
Controller control current regulation unit makes the electric current of supply magnet exciting coil reduce 1 percentage point.
Preferably, the controller is additionally configured to：Receive the road section information from in-vehicle navigation apparatus, the section letter
The jam situation of breath characterization current driving road segment, if the more congestion of the road of current driving, even if the operating temperature is not yet
First predetermined value is risen to, controller also opens the thermal cycle component.
Preferably, the heat conducting pipe is by round thin copper pipe, after reversing processing and forming rifling, then is flattened obtained.
By the magneto-rheological vibration damper of the present invention, the viscosity of magnetic flow liquid in damper can in real time, be effectively corrected,
The damping capacity of damper is kept exactly, is optimized the damping property of vehicle, is improved driving experience.
Brief description of the drawings
Fig. 1 shows composition structure diagram according to the present invention；
Fig. 2 shows the structure diagram of cylinder body according to the present invention；
Fig. 3 shows the simulation curve figure of magnetic flow liquid operating temperature according to the present invention.
Embodiment
Below in conjunction with specific embodiment, the structure of detailed description of the present invention magneto-rheological vibration damper and the work(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, arranged on 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 cavity of cylinder body 1 is divided into cavity 5 and cavity 7 by piston 3,
Magnetic flow liquid is filled in the intracavitary of cylinder body 1, and the outside diameter of piston 3 is slightly less than the internal diameter of cylinder body 1, forms path clearance 6, interchannel
Gap 6 is so that 7 unicom of cavity 5 and cavity.Since the aperture of path clearance 6 is smaller, magnetic flow liquid when flowing through the path clearance 6,
Path clearance 6 can produce damping.
Further include, the temperature sensor 8 on the inner face of piston 3, it is used to detect the magnetic flow liquid in real time
Operating temperature；Current regulation unit 10, the electricity for coming from power supply (not shown), supplying magnet exciting coil is adjusted according to control signal
Stream, to adjust the magnetic field of magnet exciting coil generation, so as to adjust the damping capacity of magnetic flow liquid；Thermal cycle component 11, it is fluidly
Heat conducting pipe is connected to, and the flow of the heat-exchange medium circulated in heat conducting pipe is adjusted according to control signal；
Controller 9, its signal are connected to the temperature sensor 8, the current regulation unit 10 and the thermal cycle group
Part 11.
As shown in Fig. 2, shown cylinder body 1 includes the first cylinder body 12, it is located at innermost layer, by the material of high permeability high thermal conductivity
Material, such as ferrotungsten are made；Second cylinder body 13, it wraps up first cylinder body 12, is made of resin material hot-working；
Magnet exciting coil 14, its outer surface uniformly around the close blind end arranged on first cylinder body 12；This area
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
Reserve and in the hot procedure of two cylinder bodies.
Heat conducting pipe 15, the heat conducting pipe 15 is the thin copper pipe of flat, and has rifling in pipe, and heat conducting pipe 15 is by round
Thin copper pipe, after reversing processing and forming rifling, then is flattened obtained.The presence of rifling so that the heat-exchange medium in pipe is circulating
When it is outer except being translatable along heat conducting pipe, autorotation can be also produced under the guiding of rifling, so can with flow as small as possible/
Flow velocity reaches expected heat exchange effect, so as to reduce the power needed for thermal cycle component, reduces energy consumption；Similarly, this area skill
Art personnel, it is apparent that heat conducting pipe 15 will draw one section to be connected on 11 (not shown) of thermal cycle component, equally may be used by fairlead
Reserve and in the hot procedure of the second cylinder body.
The heat conducting pipe 15 closes on magnet exciting coil 14, and is unevenly set around the outer surface of first cylinder body, institute
Inequality is stated with ground winding to refer to：In the external side surface portions of the first cylinder body of the middle part L2 corresponding to piston stroke L1, heat conducting pipe
13 densely windings, and in the sparsely winding of remainder heat conducting pipe, this is because the stage casing of piston stroke is piston acting production
The concentration zones of heat amount, such winding on the premise of heat exchange effect is ensured, can shorten the length of heat conducting pipe as much as possible,
Reduce cost.
The heat conducting pipe 15 is fluidly connected to thermal cycle component 11, is thermal cycle as known to those skilled
Component includes but not limited to the Common parts such as heat pump, flow valve.
Controller 9, its signal are connected to the temperature sensor 8, the current regulation unit 10 and the thermal cycle group
Part 11, and be configured as：When the operating temperature not yet rises to first predetermined value, the thermal cycle component is not turned on, when
When the operating temperature is higher than first predetermined value, thermal cycle component is opened；When the operating temperature is less than second predetermined value, control
Current regulation unit processed, reduces the electric current of supply magnet exciting coil；Preferably, the operating temperature is often higher than first predetermined value
1 percentage point, the flow that controller control thermal cycle component makes to circulate in the heat-exchange medium in heat conducting pipe increases 1 percentage
Point；The operating temperature is often less than 1 percentage point of second predetermined value, and controller control current regulation unit makes supply magnet exciting coil
Electric current reduce 1 percentage point.
As shown in figure 3, when heat conducting pipe, thermal cycle component are not involved in, magnetic flow liquid is rapidly heated within t0 to the t1 periods,
Heating at this time is not negative, but can improve the activity of the magnetic material in magnetic flow liquid, makes up to optimal work
Make state；After optimum working temperature is reached, due to piston workmanship, magnet exciting coil fever so that the work temperature of magnetic flow liquid
Degree continues heating (as shown in phantom in FIG.), although small, liter at this time of the speed of heating compared to t0 to the t1 periods at this time
Temperature will bring the deterioration of magnetic flow liquid property, and therefore, controller 9 controls heat conducting pipe, thermal cycle component to be intervened at the t1 moment.By
Simulation curve can see, and after intervention, the operating temperature of magnetic flow liquid can be substantially remained in the range of optimum working temperature (such as
It is shown in solid in figure).At the time of the t0 moment refers to that damper is started to work, the t0 moment temperature of corresponding magnetic flow liquid is
Initial temperature；At the time of the t1 moment refers to that magnetic flow liquid reaches optimum working temperature, the optimum working temperature, that is, foregoing
First predetermined value.
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 (1)
1. a kind of accurate temperature-adjusting type electric vehicle shock absorber, it 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, arranged on the intracavitary of cylinder body；Piston rod, its one end are connected to piston,
The other end is through the cover plate and extends；Magnetic flow liquid, is filled in the intracavitary of cylinder body；The outside 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 magnetic flow liquid；
It is characterized in that, the cylinder body includes：
First cylinder body, it is located at innermost layer, is made of the material of high permeability high thermal conductivity；
Magnet exciting coil, its outer surface uniformly around the close blind end arranged on first cylinder body；
Heat conducting pipe, the heat conducting pipe is the thin copper pipe of flat, and has rifling in pipe so that the heat-exchange medium in pipe is flowing
When logical in addition to being translatable along heat conducting pipe, also autorotation is produced under the guiding of rifling；The heat conducting pipe close on excitation wire enclose the land,
The outer surface of first cylinder body is unevenly set around, in the outside table of first cylinder body at the middle part corresponding to piston stroke
Face part, heat conducting pipe densely winding, in the sparsely winding of remainder heat conducting pipe；
Second cylinder body, it wraps up first cylinder body, is made of resin material hot-working；
Temperature sensor, on the inner face of the piston, for detecting the operating temperature of the magnetic flow liquid in real time；
Current regulation unit, the electric current for coming from power supply, supplying magnet exciting coil is adjusted according to control signal, to adjust magnet exciting coil
The magnetic field of generation, so as to adjust the damping capacity of magnetic flow liquid；
Thermal cycle component, it is fluidly connected to the heat conducting pipe, and the heat circulated in heat conducting pipe is adjusted according to control signal
The flow of the medium of exchange；
Controller, its signal are connected to the temperature sensor, the current regulation unit and the thermal cycle component, and by with
It is set to：
When the operating temperature not yet rises to first predetermined value, the thermal cycle component is not turned on, when the operating temperature
During higher than first predetermined value, thermal cycle component is opened, and the operating temperature is often higher than 1 percentage point of first predetermined value, control
The flow that device control thermal cycle component makes to circulate in the heat-exchange medium in heat conducting pipe increases 1 percentage point；When the work temperature
When degree is less than second predetermined value, often make supply excitation less than 1 percentage point of second predetermined value, controller control current regulation unit
The electric current of coil reduces 1 percentage point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510595.9A CN107061600B (en) | 2017-01-19 | 2017-01-19 | A kind of accurate temperature-adjusting type electric vehicle shock absorber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510595.9A CN107061600B (en) | 2017-01-19 | 2017-01-19 | A kind of accurate temperature-adjusting type electric vehicle shock absorber |
| CN201710039642.6A CN106555834B (en) | 2017-01-19 | 2017-01-19 | A kind of magneto-rheological vibration damper for electric car |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039642.6A Division CN106555834B (en) | 2017-01-19 | 2017-01-19 | A kind of magneto-rheological vibration damper for electric car |
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| Publication Number | Publication Date |
|---|---|
| CN107061600A CN107061600A (en) | 2017-08-18 |
| CN107061600B true CN107061600B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039642.6A Active CN106555834B (en) | 2017-01-19 | 2017-01-19 | A kind of magneto-rheological vibration damper for electric car |
| CN201710509534.0A Active CN107237856B (en) | 2017-01-19 | 2017-01-19 | A kind of electric vehicle shock absorber of navigation |
| CN201710510595.9A Active CN107061600B (en) | 2017-01-19 | 2017-01-19 | A kind of accurate temperature-adjusting type electric vehicle shock absorber |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039642.6A Active CN106555834B (en) | 2017-01-19 | 2017-01-19 | A kind of magneto-rheological vibration damper for electric car |
| CN201710509534.0A Active CN107237856B (en) | 2017-01-19 | 2017-01-19 | A kind of electric vehicle shock absorber of navigation |
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| CN (3) | CN106555834B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583194A (en) * | 2018-03-13 | 2018-09-28 | 胡湘蜜 | A kind of temperature coupling amendment active hydro pneumatic suspension |
| CN113236702A (en) * | 2021-05-11 | 2021-08-10 | 中国第一汽车股份有限公司 | Low-temperature compensation method and assembly of magnetorheological damper, vehicle and storage medium |
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| US6971231B2 (en) * | 2003-12-15 | 2005-12-06 | Delphi Technologies, Inc. | Piston and rod assembly and method |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
| CN104791410A (en) * | 2015-04-29 | 2015-07-22 | 柳州孔辉汽车科技有限公司 | Magnetorheogical fluid absorber |
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| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| US6892864B2 (en) * | 2001-10-16 | 2005-05-17 | Delphi Technologies, Inc. | Temperature compensation for magnetorheological fluid dampers |
| DE102008058358A1 (en) * | 2008-11-20 | 2010-05-27 | Fludicon Gmbh | Device for electro or magneto rheologic system for use as shock absorber for motor vehicle, has function or housing unit, in which electro rheologic or magneto rheologic liquid is contained |
| CN102374255B (en) * | 2010-08-05 | 2015-05-27 | 香港中文大学 | Self-powered and self-sensing magnetorheological (MR) fluid damper |
| 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 |
| CN203239835U (en) * | 2013-05-14 | 2013-10-16 | 吉林大学 | Temperature compensation absorber |
| CN104179878B (en) * | 2014-09-09 | 2016-02-24 | 安徽工程大学 | A kind of self-cooling type MR damper |
| CN105570376B (en) * | 2015-12-31 | 2017-10-13 | 浙江科技学院 | Electrorheological fluid vibration damper |
-
2017
- 2017-01-19 CN CN201710039642.6A patent/CN106555834B/en active Active
- 2017-01-19 CN CN201710509534.0A patent/CN107237856B/en active Active
- 2017-01-19 CN CN201710510595.9A patent/CN107061600B/en active Active
Patent Citations (4)
| 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 |
| CN102661353A (en) * | 2012-05-30 | 2012-09-12 | 石家庄铁道大学 | Magnetorheological damper with convenience in assembly and disassembly of coil component |
| CN104455178A (en) * | 2014-12-11 | 2015-03-25 | 中国民航大学 | Damping-adjustable magneto-rheological lag damper |
| CN104791410A (en) * | 2015-04-29 | 2015-07-22 | 柳州孔辉汽车科技有限公司 | Magnetorheogical fluid absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106555834B (en) | 2017-12-01 |
| CN106555834A (en) | 2017-04-05 |
| CN107237856A (en) | 2017-10-10 |
| CN107237856B (en) | 2018-06-01 |
| CN107061600A (en) | 2017-08-18 |
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Inventor after: Sun Qianqian Inventor before: Yang Jing |
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Effective date of registration: 20180319 Address after: 519070 310-A room B, No. 1, B building, No. 1, police min Road, Mei Hua West Road, Mei Hua West Road, Guangdong Applicant after: ZHUHAI LUWUSHUANG ELECTRIC VEHICLE CO.,LTD. Address before: Shushan District of Hefei City, Anhui province 230031 Xiyou Road No. 66 Applicant before: Yang Jing |
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Effective date of registration: 20191030 Address after: 233400 Building 1, sunshine garden, durcheng Town, Huaiyuan County, Bengbu City, Anhui Province 107 Patentee after: Huaiyuan shuoguo Intellectual Property Service Co.,Ltd. Address before: 519070 310-A room B, No. 1, B building, No. 1, police min Road, Mei Hua West Road, Mei Hua West Road, Guangdong Patentee before: ZHUHAI LUWUSHUANG ELECTRIC VEHICLE CO.,LTD. |
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Effective date of registration: 20231228 Address after: Room 202, second floor, complex building, north yard, supply and marketing cooperative, Mopan zhangwenming street, xinmaqiao Town, Guzhen County, Bengbu City, Anhui Province Patentee after: Bengbu Green Fruit Technology Service Co.,Ltd. Address before: 233400 room 107, building 1, sunshine garden, Liucheng Town, Huaiyuan County, Bengbu City, Anhui Province Patentee before: Huaiyuan shuoguo Intellectual Property Service Co.,Ltd. |
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