CN106555833B - Electric vehicle shock absorber - Google Patents
Electric vehicle shock absorber Download PDFInfo
- Publication number
- CN106555833B CN106555833B CN201710039641.1A CN201710039641A CN106555833B CN 106555833 B CN106555833 B CN 106555833B CN 201710039641 A CN201710039641 A CN 201710039641A CN 106555833 B CN106555833 B CN 106555833B
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston
- shock absorber
- network structure
- flow liquid
- 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.)
- Expired - Fee Related
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 16
- 230000035939 shock Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 10
- 239000012782 phase change material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 12
- 230000004323 axial length Effects 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000007704 transition Effects 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
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 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
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000007790 solid phase 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.Principle by 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 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 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 construction, regulation is quick, good damping result
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 produces when moving back and forth
Higher temperature, and magnet 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 deteriorating driving experience.
My another application《A kind of magneto-rheological vibration damper for electric car》Although can accurately temperature control, by
Complicated in which employs thermal cycle component, heat conducting pipe, temperature sensor, controller etc., existing, manufacturing cost is high to be lacked
Point.And in practice, only need to keep the operating temperature of magnetic flow liquid to be in a suitable section sometimes, be not necessarily intended to
The operating temperature of magnetic flow liquid is asked to be constantly in optimum temperature.Therefore, exist《A kind of magneto-rheological vibration damper for electric car》's
On the basis of, it is necessary to propose it is a kind of it is 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 are connected to piston, and the other end is through the cover plate and extends；Magnetic flow liquid, it 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 to be 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, network structure is made by phase-change material in it under low-temperature condition, and circumferentially parcel is covered in described
On the outer surface of first cylinder body；The width of the network structure corresponds to the circumference in the section of first cylinder body, described
The length of network structure is less than the axial length of first cylinder body；And the network structure is divided into the compact district and both sides at middle part
Rarefaction, the compact district correspond to the central section of piston stroke, and the rarefaction correspond to the middle region of piston stroke
Section beyond section, the mesh of the compact district are 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, the damping capacity of shock absorber is kept exactly, is optimized the damping property of vehicle, improves driving experience.
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；
Fig. 4 shows the schematic diagram of another 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
For technical staff, it is apparent that magnet exciting coil 14 will draw one section to be connected on external power source (not shown), fairlead can be
Reserve and in the hot procedure of two cylinder bodies.
Heat conduction with phase change net 15, network structure is made by phase-change material in it under low-temperature condition, and circumferentially parcel is covered in institute
On the outer surface for stating the first cylinder body 12；The width D of the network structure is equal to the circumference in the section of first cylinder body 12,
The length L of the network structure is less than the axial length of first cylinder body；And the network structure is divided into the compact district at middle part
With the rarefaction on both sides, the length l of the compact district correspond to the central section L2 of piston stroke, and the rarefaction correspond to live
The section beyond the central section of stroke is filled in, the mesh of the compact district is less than the mesh of the rarefaction, because piston
The stage casing of stroke is the concentration zones that piston acting produces heat, and such network structure can ensure the premise of heat exchange effect
Under, the dosage of phase-change material is reduced as far as, 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 that nearly magnet exciting coil is set, and sparse section away from magnet exciting coil, this is occurred to be powered to magnet exciting coil
Heat carries out heat exchange, and on the premise of heat exchange effect is ensured, 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 base material, the phase-change material that poly glycol monomethyl ether (MPEG) is operation material.By suitably matching, heat conduction with phase change can be made
Between the starting phase transition temperature of net is 22 DEG C to 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 thering is deterioration to influence on magnetic flow liquid come, the operating temperature and viscosity of magnetic flow liquid in shock absorber are effectively corrected, 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, reduce manufacture difficulty, 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 (1)
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, it 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 to be 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, network structure is made by phase-change material in it under low-temperature condition, and circumferentially parcel is covered in described first
On the outer surface of cylinder body；The width of the network 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 network structure be divided into middle part compact district and both sides it is dilute
Dredge area, the compact district correspond 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, it wraps up first cylinder body, is made up of resin material hot-working.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709045.XA CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710598904.2A CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710039641.1A CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710598903.8A CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039641.1A CN106555833B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709045.XA Division CN107289060B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle |
| CN201710598904.2A Division CN107228154B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
| CN201710598903.8A Division CN107387646B (en) | 2017-01-19 | 2017-01-19 | Electric vehicle shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106555833A CN106555833A (en) | 2017-04-05 |
| CN106555833B true CN106555833B (en) | 2017-12-01 |
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 (3)
| 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 |
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 |
|---|---|---|---|---|
| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| CN102374255A (en) * | 2010-08-05 | 2012-03-14 | 香港中文大学 | Self-powered and self-sensing magnetorheological (MR) fluid damper |
| 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 |
Family Cites Families (10)
| 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 |
| 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 |
| 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 |
| 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 |
| 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 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 |
|---|---|---|---|---|
| US6386343B1 (en) * | 2001-04-30 | 2002-05-14 | Delphi Technologies, Inc. | Temperature compensating flux ring |
| CN102374255A (en) * | 2010-08-05 | 2012-03-14 | 香港中文大学 | Self-powered and self-sensing magnetorheological (MR) fluid damper |
| 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 |
|---|---|
| CN107289060B (en) | 2019-01-11 |
| CN107387646B (en) | 2018-07-10 |
| CN107228154B (en) | 2018-06-01 |
| CN107289060A (en) | 2017-10-24 |
| CN107387646A (en) | 2017-11-24 |
| CN106555833A (en) | 2017-04-05 |
| CN107228154A (en) | 2017-10-03 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qiu Liexiu Inventor before: Yang Jing |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170817 Address after: 330218, Jiangxi, Nanchang province Tacheng Nanchang County Lake slope village, Zhu Village, natural Village No. 194 Applicant after: Qiu Liexiu Address before: Shushan District of Hefei City, Anhui province 230031 Xiyou Road No. 66 Applicant before: Yang Jing |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171024 Address after: 401320 Chongqing city Banan District Road No. 26 department in Baxian Fortune Tower No. 13-13 Applicant after: Chongqing days Spring Technology Co.,Ltd. Address before: 330218, Jiangxi, Nanchang province Tacheng Nanchang County Lake slope village, Zhu Village, natural Village No. 194 Applicant before: Qiu Liexiu |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180115 Address after: Chongqing city Banan District 401347 Zhen TA Nan Luo Cun Peng Yang Gang Group No. 41 Patentee after: Li Daibi Address before: 401320 Chongqing city Banan District Road No. 26 department in Baxian Fortune Tower No. 13-13 Patentee before: Chongqing days Spring Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.585 Shiyuan West Road, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province Patentee after: Li Daibi Address before: Chongqing city Banan District 401347 Zhen TA Nan Luo Cun Peng Yang Gang Group No. 41 Patentee before: Li Daibi |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210512 Address after: 221700 Dongcheng Road, Fengxian County, Xuzhou City, Jiangsu Province Patentee after: Mazda locomotive (Xuzhou) Co.,Ltd. Address before: 313000 No.585, Shiyuan West Road, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province Patentee before: Li Daibi |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20220119 |