CN102611360A - Five-freedom-degree magnetic suspension motor with brake function and control method thereof - Google Patents
Five-freedom-degree magnetic suspension motor with brake function and control method thereof Download PDFInfo
- Publication number
- CN102611360A CN102611360A CN2012100595959A CN201210059595A CN102611360A CN 102611360 A CN102611360 A CN 102611360A CN 2012100595959 A CN2012100595959 A CN 2012100595959A CN 201210059595 A CN201210059595 A CN 201210059595A CN 102611360 A CN102611360 A CN 102611360A
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- rotor
- thrust
- radial direction
- brake
- 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
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention relates to a five-freedom-degree magnetic suspension motor with a brake function and a control method thereof. Parking and brake functions of the five-freedom-degree magnetic suspension motor are respectively completed by a magnetic suspension bearing. When wind speed is too low, the electric energy consumed by the magnetic suspension bearing is greater than the electric energy generated by a wind driven generator, so a central processing unit controls a power supply module so that the power supply module switches off the power supply of a magnetic suspension bearing electric control system, and the magnetic suspension bearing stops working (parks). When the wind speed is two high, in order to protect the generator, the central processing unit sends instructions to a thrust magnetic bearing electric control system, the axial suspension position of a motor rotor is moved to a brake sheet and tightly approaches to the brake sheet through the thrust magnetic bearing, and the brake action (brake) is realized. When the wind speed meets the electricity generation requirement, the magnetic suspension bearing normally works, and the motor rotor is ensured to operate in a suspension state. The magnetic suspension motor integrates three functions of contactless support, parking and brake, the magnetic suspension motor is adopted, so that the structure of the wind driven generator can be simplified, and the electricity generation efficiency of the wind driven generator is effectively improved.
Description
Technical field
The present invention relates to a kind of suspension of five-freedom degree magnetic motor and control method thereof, belong to wind power generation and magnetic levitation technology field with brake function.
Background technology
It is outstanding that the energy of our times property and environmental problem more show.Wind-driven generator has bigger application prospect as a kind of clean energy resource generation device, has received widely paying close attention to.The support component of rotor-support-foundation system is the critical component of wind-driven generator, is that frictional resistance is little, the life-span is long to its basic demand.Brake part is another critical component of wind-driven generator, is that (like typhoon etc.) stops the rotation rotor when wind speed is too high to its basic demand, with the protection generator.
General blower fan adopts traditional bearing (rolling bearing or sliding bearing) to support, but frictional resistance is big, the life-span short, the startup wind speed is big, overall efficiency is low.Compare with traditional bearing, magnetic suspension bearing and rotor are contactless, and the supporting power consumption is little, long service life; Need not lubricate and seal, can be used for particular surroundingss such as high low temperature for a long time; Maintenance cost is low, be convenient to ACTIVE CONTROL etc., thereby is considered to the revolution of supporting technology, is present unique practical active supporting arrangement that drops into.
Based on the advantage of magnetic suspension bearing, existing researcher proposes to adopt the support component of magnetic suspension bearing as the wind power generator rotor system.But there are following shortcoming in prior art or scheme: magnetic suspension bearing itself needs consumed power when operation; When wind speed is low; The electric energy that wind-driven generator produces still can not satisfy the needs that magnetic suspension bearing itself moves, so electricity of accumulator not only can not increase, and can reduce on the contrary.Brake system is an individual components in addition, has increased the volume and the cost of wind-driven generator.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the above-mentioned shortcoming of prior art, a kind of suspension of five-freedom degree magnetic motor with brake function is provided, and the control method of this magnetic suspension motor is provided.
In order to solve above technical problem; Suspension of five-freedom degree magnetic motor with brake function provided by the invention; Comprise electric machine casing, be arranged at base, motor stator, rotor, radial direction magnetic bearing group in the electric machine casing; It is characterized in that: the outer wall of said rotor is fixed with thrust collar, and the top of thrust collar is provided with the thrust magnetic bearing, and thrust magnetic bearing and electric machine casing are fixed; The thrust magnetic bearing contains the electromagnet coil that is useful on the attraction thrust collar; The radial direction magnetic bearing group contains and is useful on radially the bi-directional electromagnetic iron coil that four degrees of freedom attract rotors, and the pedestal that the upper end of said rotor is provided with and electric machine casing is fixing, said pedestal be equipped with brake block, towards the axial location transducer of rotor; The side of said rotor is provided with the radial position transducer towards rotor; This magnetic suspension motor also has air velocity transducer, central processing unit, power module, and the signal output part of said air velocity transducer is connected with central processing unit, and the signal output part of the signal output part of axial location transducer, radial position transducer is connected with the electric-control system of thrust magnetic bearing with the radial direction magnetic bearing group respectively; Said central processing unit is connected with power module; Be used for controlling respectively the on/off of radial direction magnetic bearing group and thrust magnetic bearing, said central processing unit also is connected with the electric-control system of radial direction magnetic bearing group with the thrust magnetic bearing respectively, is used for sending control command to it.
This magnetic suspension motor has three operating states, and when thrust collar during in extreme lower position, the rotor bottom contacts with base, is dead ship condition; When thrust collar during in highest order, the rotor top contacts with brake block, is braking state; When thrust collar mediated, rotor was in the contactless holding state of suspension.The levitation position of rotor can realize through the size of regulating electromagnet coil current in radial direction magnetic bearing group and the thrust magnetic bearing.It is thus clear that magnetic suspension motor of the present invention has been realized parking, brake, no support suspension.
Further, said radial direction magnetic bearing group has first radial direction magnetic bearing that is positioned at thrust magnetic bearing top, second radial direction magnetic bearing that is positioned at the motor stator below.
Further; This magnetic suspension motor also has two groups of said radial position transducers of arranging around the rotor perisporium; First group of radial position transducer is arranged at the upper end of first radial direction magnetic bearing, and second group of radial position transducer is arranged at the lower end of second radial direction magnetic bearing.
In addition; The present invention also provides the control method of the suspension of five-freedom degree magnetic motor with brake function; It is characterized in that: be provided with minimum running wind speed and the highest running wind speed in the said central processing unit; The electric-control system that the motor rotor position information that detects is sent to radial direction magnetic bearing group and thrust magnetic bearing of radial position transducer, axial location sensor in real time; The real-time current wind velocity signal that will detect of said air velocity transducer is sent to central processing unit, and central processing unit is judged current wind speed:
If current wind speed is lower than minimum running wind speed, then central processing unit sends stop sign to power module, makes it cut off the radially power supply of magnetic bearing group and thrust magnetic bearing electric-control system, and rotor is dropped on the base, realizes stopping;
If current wind speed is between minimum running wind speed and the highest running wind speed; Then central processing unit sends CRANK PULSES to power module; Make it to radially magnetic bearing group and thrust magnetic bearing electric-control system power supply, radial direction magnetic bearing group and thrust magnetic bearing electric-control system are regulated size of current in radial direction magnetic bearing group and the thrust magnetic bearing electromagnet coil according to the positional information of current motor rotor; Make rotor be in suspended state, realize that rotor runs well;
If wind speed is greater than the highest running wind speed; Central processing unit sends brake signal to thrust magnetic bearing electric-control system; The thrust magnetic bearing moves and is close to brake block with the axial suspension position of rotor to brake block, makes the rotor rotating speed reduce to zero, accomplishes brake and sends alarm signal.
The present invention will be stopped and brake function is accomplished by magnetic suspension bearing; When wind speed is crossed when low; The electric energy that the electric energy that magnetic suspension bearing need consume will produce greater than wind-driven generator; Therefore make its power supply that turn-offs radial direction magnetic bearing group and thrust magnetic bearing electric-control system by central processing unit control power module, magnetic suspension bearing quit work (parking); When wind speed was excessive, in order to protect generator, the thrust magnetic bearing moved and is close to brake block with the rotor levitation position to brake block, realized brake (brake).
This magnetic suspension motor is integrated contactless support, parking and three kinds of functions of brake.Adopt this magnetic suspension motor can simplify wind-driven generator structure, effectively improve the generating efficiency of wind-driven generator.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 has the structural representation of the suspension of five-freedom degree magnetic motor of brake function for the present invention.
Fig. 2 has the suspension of five-freedom degree magnetic Electric Machine Control partial circuit block diagram of brake function for the present invention.
Embodiment
Like Fig. 1, shown in Figure 2; Present embodiment has the suspension of five-freedom degree magnetic motor of brake function; Composition comprises: electric machine casing (not drawing among the figure), be arranged at base (not drawing among the figure) in the electric machine casing, motor stator 8, rotor 3, radial direction magnetic bearing group (in this example; The radial direction magnetic bearing group has first radial direction magnetic bearing 5 that is positioned at thrust magnetic bearing 6 tops, second radial direction magnetic bearing, 5 ＇ that are positioned at motor stator 8 belows), the outer wall of rotor 3 is fixed with thrust collar 7, and the top of thrust collar 7 is provided with thrust magnetic bearing 6; Thrust magnetic bearing 6 is fixed with electric machine casing; Thrust magnetic bearing 6 has the electromagnet coil 9 that is used to attract thrust collar, and the pedestal 1 that the upper end of rotor 3 is provided with and electric machine casing is fixing, pedestal 1 be equipped with brake block 2, towards the axial location transducer 4 of rotor 3; The side of rotor 3 is provided with the radial position transducer towards rotor; In the present embodiment as shown in Figure 1, the radial position transducer is divided into two groups, arranges around the rotor perisporium respectively; First group of radial position transducer 11 is arranged at the upper end of first radial direction magnetic bearing 5, and second group of radial position transducer 11 ＇ is arranged at the lower end of second radial direction magnetic bearing, 5 ＇; As shown in Figure 2; This magnetic suspension motor also has air velocity transducer, central processing unit, power module; The signal output part of said air velocity transducer is connected with central processing unit; The signal output part of the signal output part of axial location transducer, radial position transducer is connected with the electric-control system of thrust magnetic bearing with the radial direction magnetic bearing group respectively, and said central processing unit is connected with power module, is used for controlling respectively the on/off of radial direction magnetic bearing group and thrust magnetic bearing; Said central processing unit also is connected with the electric-control system of radial direction magnetic bearing group with the thrust magnetic bearing respectively, is used for sending control command to it.Brake block 2 is 0.25mm with the end play of rotor 3.
The control method of present embodiment magnetic suspension motor is following:
Be provided with minimum running wind speed and the highest running wind speed in the said central processing unit; The electric-control system that the motor rotor position information that detects is sent to radial direction magnetic bearing group and thrust magnetic bearing of radial position transducer, axial location sensor in real time; The real-time current wind velocity signal that will detect of said air velocity transducer is sent to central processing unit, and central processing unit is judged current wind speed:
If current wind speed is lower than minimum running wind speed, then central processing unit sends stop sign to power module, makes it cut off the radially power supply of magnetic bearing group and thrust magnetic bearing electric-control system, and rotor is dropped on the base, realizes stopping;
If current wind speed is between minimum running wind speed and the highest running wind speed; Then central processing unit sends CRANK PULSES to power module; Make it to radially magnetic bearing group and thrust magnetic bearing electric-control system power supply, radial direction magnetic bearing group and thrust magnetic bearing electric-control system are regulated size of current in radial direction magnetic bearing group and the thrust magnetic bearing electromagnet coil according to the positional information of current motor rotor; Make rotor be in suspended state, realize that rotor runs well;
If wind speed is greater than the highest running wind speed; Central processing unit sends brake signal to thrust magnetic bearing electric-control system; The thrust magnetic bearing moves and is close to brake block with the axial suspension position of rotor to brake block, makes the rotor rotating speed reduce to zero, accomplishes brake and sends alarm signal.
Except that the foregoing description, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.
Claims (5)
1. the suspension of five-freedom degree magnetic motor that has brake function; Comprise electric machine casing, be arranged at base, motor stator, rotor, radial direction magnetic bearing group in the electric machine casing; It is characterized in that: the outer wall of said rotor is fixed with thrust collar; The top of thrust collar is provided with the thrust magnetic bearing; Thrust magnetic bearing and electric machine casing are fixed, and the thrust magnetic bearing contains and is useful on the electromagnet coil that attracts thrust collar, and the radial direction magnetic bearing group contains and is useful on radially the bi-directional electromagnetic iron coil that four degrees of freedom attract rotors; The upper end of said rotor is provided with and the fixing pedestal of electric machine casing; Said pedestal is equipped with brake block, towards the axial location transducer of rotor, the side of said rotor is provided with the radial position transducer towards rotor, this magnetic suspension motor also has the electric-control system of air velocity transducer, central processing unit, thrust magnetic bearing, the electric-control system and the power module of radial direction magnetic bearing group; The signal output part of said air velocity transducer is connected with central processing unit; The signal output part of the signal output part of axial location transducer, radial position transducer is connected with the electric-control system of thrust magnetic bearing with the radial direction magnetic bearing group respectively, and said central processing unit is connected with power module, is used for controlling respectively the on/off of radial direction magnetic bearing group and thrust magnetic bearing; Said central processing unit also is connected with the electric-control system of radial direction magnetic bearing group with the thrust magnetic bearing respectively, is used for sending control command to it.
2. the suspension of five-freedom degree magnetic motor with brake function according to claim 1 is characterized in that: said radial direction magnetic bearing group has first radial direction magnetic bearing that is positioned at thrust magnetic bearing top, second radial direction magnetic bearing that is positioned at the motor stator below.
3. the suspension of five-freedom degree magnetic motor with brake function according to claim 2; It is characterized in that: have two groups of said radial position transducers of arranging around the rotor perisporium; First group of radial position transducer is arranged at the upper end of first radial direction magnetic bearing, and second group of radial position transducer is arranged at the lower end of second radial direction magnetic bearing.
4. the suspension of five-freedom degree magnetic motor with brake function according to claim 3 is characterized in that: the end play of said brake block and rotor is 0.25mm.
5. the control method that has the suspension of five-freedom degree magnetic motor of brake function; It is characterized in that: be provided with minimum running wind speed and the highest running wind speed in the said central processing unit; The electric-control system that the motor rotor position information that detects is sent to radial direction magnetic bearing group and thrust magnetic bearing of radial position transducer, axial location sensor in real time; The real-time current wind velocity signal that will detect of said air velocity transducer is sent to central processing unit, and central processing unit is judged current wind speed:
If current wind speed is lower than minimum running wind speed, then central processing unit sends stop sign to power module, makes it cut off the radially power supply of magnetic bearing group and thrust magnetic bearing electric-control system, and rotor is dropped on the base, realizes stopping;
If current wind speed is between minimum running wind speed and the highest running wind speed; Then central processing unit sends CRANK PULSES to power module; Make it to radially magnetic bearing group and thrust magnetic bearing electric-control system power supply, radial direction magnetic bearing group and thrust magnetic bearing electric-control system are regulated size of current in radial direction magnetic bearing group and the thrust magnetic bearing electromagnet coil according to the positional information of current motor rotor; Make rotor be in suspended state, realize that rotor runs well;
If wind speed is greater than the highest running wind speed; Central processing unit sends brake signal to thrust magnetic bearing electric-control system; The thrust magnetic bearing moves and is close to brake block with the axial suspension position of rotor to brake block, makes the rotor rotating speed reduce to zero, accomplishes brake and sends alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059595.9A CN102611360B (en) | 2012-03-08 | 2012-03-08 | Five-freedom-degree magnetic suspension motor with brake function and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059595.9A CN102611360B (en) | 2012-03-08 | 2012-03-08 | Five-freedom-degree magnetic suspension motor with brake function and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102611360A true CN102611360A (en) | 2012-07-25 |
| CN102611360B CN102611360B (en) | 2014-07-23 |
Family
ID=46528563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210059595.9A Active CN102611360B (en) | 2012-03-08 | 2012-03-08 | Five-freedom-degree magnetic suspension motor with brake function and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102611360B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731068A (en) * | 2014-01-27 | 2014-04-16 | 合肥工业大学 | Suspension energy storage flywheel device with conductivity electromagnetic compounding |
| CN106787417A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
| WO2017125072A1 (en) * | 2016-01-20 | 2017-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Stopping method and apparatus for magnetic suspension centrifugal machine |
| CN107370321A (en) * | 2017-08-24 | 2017-11-21 | 莱克电气股份有限公司 | A kind of motor of dust collector and dust catcher |
| CN113014145A (en) * | 2021-03-17 | 2021-06-22 | 苏州保邦电气有限公司 | Control system and method of magnetic suspension motor and storage medium |
| CN113623319A (en) * | 2021-07-08 | 2021-11-09 | 安徽华驰动能科技有限公司 | Magnetic suspension bearing with safety braking protection function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757148A (en) * | 1996-03-13 | 1998-05-26 | Ebara Corporation | Method of and apparatus for stopping a motor having magnetic bearings |
| US20080073993A1 (en) * | 2006-09-22 | 2008-03-27 | Sortore Christopher K | Magnetic bearing |
| CN101169159A (en) * | 2007-08-23 | 2008-04-30 | 南京航空航天大学 | Large damp magnetic suspension high speed rotating system device |
| CN201450472U (en) * | 2009-03-11 | 2010-05-05 | 中国人民解放军国防科学技术大学 | Magnetic suspension control unit based on non-linear tracing differentiator |
| CN101761454A (en) * | 2009-10-30 | 2010-06-30 | 北京航空航天大学 | Vertical shaft maglev wind power generator |
| CN201730753U (en) * | 2010-07-22 | 2011-02-02 | 南京工业大学 | Five-degree-of-freedom full-suspension vertical-axis wind driven generator with outer rotor structure |
-
2012
- 2012-03-08 CN CN201210059595.9A patent/CN102611360B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757148A (en) * | 1996-03-13 | 1998-05-26 | Ebara Corporation | Method of and apparatus for stopping a motor having magnetic bearings |
| US20080073993A1 (en) * | 2006-09-22 | 2008-03-27 | Sortore Christopher K | Magnetic bearing |
| CN101169159A (en) * | 2007-08-23 | 2008-04-30 | 南京航空航天大学 | Large damp magnetic suspension high speed rotating system device |
| CN201450472U (en) * | 2009-03-11 | 2010-05-05 | 中国人民解放军国防科学技术大学 | Magnetic suspension control unit based on non-linear tracing differentiator |
| CN101761454A (en) * | 2009-10-30 | 2010-06-30 | 北京航空航天大学 | Vertical shaft maglev wind power generator |
| CN201730753U (en) * | 2010-07-22 | 2011-02-02 | 南京工业大学 | Five-degree-of-freedom full-suspension vertical-axis wind driven generator with outer rotor structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731068A (en) * | 2014-01-27 | 2014-04-16 | 合肥工业大学 | Suspension energy storage flywheel device with conductivity electromagnetic compounding |
| CN103731068B (en) * | 2014-01-27 | 2015-09-30 | 合肥工业大学 | The levitation energy-storing flywheel device of permanent-magnetism electromagnetic compound |
| WO2017125072A1 (en) * | 2016-01-20 | 2017-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Stopping method and apparatus for magnetic suspension centrifugal machine |
| US10850287B2 (en) | 2016-01-20 | 2020-12-01 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Method and device for stopping a magnetic suspension centrifuge |
| CN106787417A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
| CN107370321A (en) * | 2017-08-24 | 2017-11-21 | 莱克电气股份有限公司 | A kind of motor of dust collector and dust catcher |
| WO2019037524A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| CN113014145A (en) * | 2021-03-17 | 2021-06-22 | 苏州保邦电气有限公司 | Control system and method of magnetic suspension motor and storage medium |
| CN113623319A (en) * | 2021-07-08 | 2021-11-09 | 安徽华驰动能科技有限公司 | Magnetic suspension bearing with safety braking protection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102611360B (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102611360B (en) | Five-freedom-degree magnetic suspension motor with brake function and control method thereof | |
| CN202273889U (en) | Magnetic levitation flywheel centrifugal blower | |
| CN102437675B (en) | Energy storage device of magnetic suspension flywheel | |
| CN201714584U (en) | Novel magnetic suspending wind power generator | |
| CN201956944U (en) | Vertical magnetic levitation flywheel battery utilizing flywheel | |
| CN103244357A (en) | Magnetic suspension bearing disc hybrid excitation doubly salient wind generator | |
| CN107013410B (en) | Vertical axis permanent magnet direct-drive wind driven generator and control method thereof | |
| CN101964564B (en) | Vertical type magnetic suspension flywheel battery adopting thin spoke flywheel | |
| CN101373917A (en) | Multi-disc type permanent magnet synchronous motor | |
| CN106602929A (en) | Disc-type piezoelectric power generation device | |
| CN102868267A (en) | Multi-power solid rotor and laminated rotor tandem type permanent magnet synchronous motor system | |
| CN113078663A (en) | Double-drive circulating power generation system based on flywheel energy storage | |
| CN202444453U (en) | Five-DOF (degree of freedom) magnetic levitation generator with braking function | |
| CN101510719A (en) | Self-regulating levitation wind power generation system | |
| CN203711099U (en) | Ceramic ball mill drive system | |
| CN107370321B (en) | A kind of motor of dust collector and dust catcher | |
| CN103122931A (en) | Drive and control circuit used in magnetic levitation wind-driven generator | |
| CN102122860A (en) | Flywheel energy storage device | |
| CN202183687U (en) | Variable frequency motor | |
| CN204403146U (en) | A kind of dynamically controlled radial permanent magnet bearing | |
| CN103138670A (en) | High-power-generation-efficiency diesel generating set | |
| TWM450910U (en) | Assembly apparatus of compact motor and wind power generator with high performance magnetic levitation | |
| CN201137553Y (en) | Wind power generator for road lamp illumination | |
| CN201846180U (en) | Separate magnetic suspension rotor-bearing system of vertical flywheel battery | |
| CN101764459A (en) | Axial magnetic suspension motor of inner rotor and spindle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160913 Address after: 214100, room 1, building 311, No. 1512-2, Yan Xin Road, Huishan Economic Development Zone, Wuxi, Jiangsu Patentee after: WUXI YUANSHENG POWER TECHNOLOGY CO.,LTD. Address before: Yudaojie Nanjing 210016 Jiangsu province No. 29 Patentee before: Nanjing University of Aeronautics and Astronautics |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20220323 Address after: 214000 yangjiawei village, Qianzhou street, Huishan District, Wuxi City, Jiangsu Province Patentee after: WUXI YUANCHANG MACHINE MANUFACTURE Co.,Ltd. Address before: 214100 room 1512-2, building 1, No. 311, Yanxin Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI YUANSHENG POWER TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230531 Address after: Room 1206-07, building 3, No. 311, Yanxin Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Hengyang Technology Co.,Ltd. Address before: 214000 yangjiawei village, Qianzhou street, Huishan District, Wuxi City, Jiangsu Province Patentee before: WUXI YUANCHANG MACHINE MANUFACTURE Co.,Ltd. |
|
| TR01 | Transfer of patent right |