CN103112473A - Permanent magnet track brake capable of applying and terminating braking by aid of dual-pressure cylinder and method for operating permanent magnet track brake - Google Patents
Permanent magnet track brake capable of applying and terminating braking by aid of dual-pressure cylinder and method for operating permanent magnet track brake Download PDFInfo
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- CN103112473A CN103112473A CN2013100572561A CN201310057256A CN103112473A CN 103112473 A CN103112473 A CN 103112473A CN 2013100572561 A CN2013100572561 A CN 2013100572561A CN 201310057256 A CN201310057256 A CN 201310057256A CN 103112473 A CN103112473 A CN 103112473A
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Abstract
The invention discloses a permanent magnet track brake capable of applying and terminating braking on a railway vehicle by the aid of a dual-pressure cylinder and a method for operating the permanent magnet track brake. The permanent magnet track brake comprises an accommodating cavity of a magnetic yoke, the accommodating cavity comprises two rectangular magnetic-permeability brake shoes, two strip-shaped magnetic-permeability plates, two rectangular magnetic-impermeability partition plates and a U-shaped magnetic-permeability cover in an enclosing manner, a moving shaft is arranged in the accommodating cavity and comprises two rectangular magnetic-permeability plates which are transversely arranged along a track in a bilateral symmetry manner, a rectangular permanent magnet which is magnetized transversely is fixed to a position between the two rectangular magnetic-permeability plates, and the moving shaft is connected with a control gear. A slider and connecting rod mechanism drives the moving shaft to vertically and downwardly move to the bottom of the accommodating cavity, so that a magnetic field circuit can be formed among the moving shaft, the strip-shaped magnetic-permeability plates, the magnetic-permeability brake shoes and the track to realize braking; and the slider and connecting rod mechanism drives the moving shaft to vertically and upwardly move to the top of the accommodating cavity, so that a magnetic field circuit can be formed between the moving shaft and the U-shaped magnetic-permeability cover to terminate braking. The permanent magnet track brake has the advantages that a linear movable arrangement mode is adopted, and the permanent magnet track brake is easy to operate and can be controlled precisely.
Description
Technical field
The present invention relates to a kind of permanent magnet track brake, belong to guideway vehicle service brake technical field.
Background technology
Existing permanent magnet track brake is normally rotary-type, it mainly comprises: permanent magnetism axle, support, permanent magnet, brake shoe, switch controlling device, control the permanent magnetism axle by switch controlling device and rotate an angle in support, form closed magnetic loop between permanent magnet, support, brake shoe, rail, make between brake shoe and rail and produce force of sliding friction, thereby guideway vehicle is produced brake action; When switch controlling device control permanent magnetism axle rotates an angle again in support, form closed magnetic loop between permanent magnet, support, brake shoe does not have suction to rail, thereby realizes the releasing of braking.The defective of existing this permanent magnet track brake is: in permanent magnetism axle rotary course, switch controlling device need to provide very large moment of rotation, inconvenient operation; The permanent magnetism axle rotates back and forth has very high requirement to its intensity; In permanent magnetism axle rotary course, the anglec of rotation is difficult to accurate control; These defectives all have influence on the braking of permanent magnet track brake and remove performance.
Summary of the invention
The objective of the invention is to overcome present rotary-type permanent magnet track brake in realizing the process of switch, very large moment need to be provided and be difficult to accurately control the defective of permanent magnetism shaft position and provide a kind of and adopt two cylinder pressures to apply simple in structure, dependable performance, processing ease, manageable moveable type permanent magnet track brake with brake off.Another object of the present invention is to provide the method for work of this permanent magnet track brake.
for achieving the above object, the present invention adopts two cylinder pressures to apply the technical scheme that the permanent magnet track brake with brake off adopts: by yoke, shifting axle, operating control three parts form, yoke be positioned at track directly over, the yoke bottommost be two at the identical rectangle magnetic conductive brake boots that transversely are symmetrically arranged of track, stripe shape concentrating flux plate of each captive joint directly over each rectangle magnetic conductive brake boots, non-magnetic dividing plate of rectangle of each captive joint directly over the top of each stripe shape concentrating flux plate, it is downward opening U-shaped magnetic conductive cover directly over the top of two non-magnetic dividing plates of described rectangle, by two rectangle magnetic conductive brake boots, two stripe shape concentrating flux plates, two non-magnetic dividing plates of rectangle and U-shaped magnetic conductive cover surround the cavity volume of yoke, shifting axle and T-shaped non-magnetic dividing plate are arranged in described cavity volume, the horizontal top surface left and right symmetrically of T-shaped non-magnetic dividing plate fixedly is fitted on the end face of two rectangle magnetic conductive brake boots, and the vertical side of T-shaped non-magnetic dividing plate is stretched the gap location at two rectangle magnetic conductive brake boots downwards, shifting axle comprises two the rectangle concentrating flux plates that transversely are symmetrically arranged along track, is fixed with a rectangle permanent magnet that magnetizes in the transverse horizontal direction in the middle of two rectangle concentrating flux plates, and the positive top of rectangle permanent magnet is fixed with a non-magnetic plate of rectangle, shifting axle connects operating control, and operating control comprises two cylinder pressures and the sliding-block linkage that connects two cylinder pressures and shifting axle.
It is to comprise the steps: 1 that the present invention adopts two cylinder pressures to apply the technical scheme that the method for work with the permanent magnet track brake of brake off adopts) permanent magnet track brake is dropped to position directly over track, reduce two cylinder pressure internal pressures, drive bottom in the cavity volume that shifting axle moves to yoke vertically downward by sliding-block linkage; Continue again the decline permanent magnet track brake until contact with track, form field circuit A between shifting axle, stripe shape concentrating flux plate, magnetic conductive brake boots, track, make the absorption of magnetic conductive brake boots realize in orbit braking; 2) increase two cylinder pressure internal pressures, drive top in the cavity volume that shifting axle moves to yoke vertically upward by sliding-block linkage, form field circuit B between shifting axle and U-shaped magnetic conductive cover, between magnetic conductive brake boots and track without suction, brake off.
The beneficial effect that the present invention has is:
1. can provide drg required device by the hydraulic efficiency gear that guideway vehicle carries, not need other adding set, simple in structure.
2. adopt Hydraulic Pump as the switching device of drg, can act on reposefully, have higher reliability.
3. adopt rectilinearly-movable but not revolving arrangement, operation can more accurately be controlled than being easier to.
4. dependable performance of the present invention, have high practicality and validity.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Description of drawings
Fig. 1 is permanent magnet track brake of the present invention transverse sectional view along track when control position;
Fig. 2 is permanent magnet track brake of the present invention transverse sectional view along track when off-position;
Fig. 3 is that the operating control of permanent magnet track brake of the present invention and yoke are along vertical layout schematic diagram of track;
Fig. 4 is the sectional perspective view of the amplification of operating control and yoke in Fig. 3;
In figure: 1. rectangle permanent magnet; 2. rectangle concentrating flux plate; 3. joint bolt; 4. the non-magnetic plate of rectangle; 5.T the non-magnetic dividing plate of type; 6. joint bolt; 7. stripe shape concentrating flux plate; 8. the non-magnetic dividing plate of rectangle; 9.U type magnetic conductive cover; 10. attachment bolt; 11. rectangle magnetic conductive brake boots; 12. shifting axle; 13. track; 14. yoke;
15,17. ball connectors; 16,18,20. connecting rods; 19. slide block; 21. two cylinder pressures; 22 shroudings; 23. upper interface.
The specific embodiment
As shown in Fig. 1-4, permanent magnet track brake of the present invention is comprised of yoke 14, shifting axle 12, operating control three parts.
As depicted in figs. 1 and 2, yoke 14 be positioned at track 13 directly over, comprise a U-shaped magnetic conductive cover 9, two non-magnetic dividing plates 8 of identical rectangle, two identical stripe shape concentrating flux plates 7, two identical rectangle magnetic conductive brake boots 11 and a T-shaped non-magnetic dividing plate 5.The bottommost of yoke 14 is two identical rectangle magnetic conductive brake boots 11, and these two identical rectangle magnetic conductive brake boots 11 transversely are symmetrically arranged track 13, and the bottom surface of two rectangle magnetic conductive brake boots 11 is level.7, two stripe shape concentrating flux plates 7 of stripe shape concentrating flux plate of each captive joint transversely being symmetrically arranged at track 13 directly over each rectangle magnetic conductive brake boots 11.The corresponding rectangle magnetic conductive brake of the bottom captive joint boots 11 of stripe shape concentrating flux plate 7, the bottom of a non-magnetic dividing plate 8 of rectangle of each captive joint directly over the top of each stripe shape concentrating flux plate 7, it is U-shaped magnetic conductive cover 9 directly over the top of two non-magnetic dividing plates 8 of rectangle, U-shaped magnetic conductive cover 9 opening down, and two sidewalls of U-shaped magnetic conductive cover 9 are fixed together with the top of corresponding two non-magnetic dividing plates 8 of rectangle respectively, are about to U-shaped magnetic conductive cover 9 and cover on two non-magnetic dividing plate 8 upper surfaces of rectangle.Like this, surrounded the cavity volume of yoke 14 by two rectangle magnetic conductive brake boots 11, two stripe shape concentrating flux plates 7, two non-magnetic dividing plates 8 of rectangle and U-shaped magnetic conductive cover 9, the vertical center line of this cavity volume overlaps with the vertical center line of track 13.Stripe shape concentrating flux plate 7, the non-magnetic dividing plate 8 of rectangle and U-shaped magnetic conductive cover 9 sidewalls align in the vertical direction, make two of the left and right medial surface of cavity volume respectively become a concordant vertical surface.
The non-magnetic dividing plate 8 of sidewall, rectangle and the stripe shape concentrating flux plate 7 that connect successively respectively from top to bottom U-shaped magnetic conductive cover 9 with two joint bolts 6 are fixed into an integral body with U-shaped magnetic conductive cover 9, the non-magnetic dividing plate 8 of rectangle and stripe shape concentrating flux plate 7.
Shifting axle 12 and T-shaped non-magnetic dividing plate 5 are arranged in the cavity volume of above-mentioned yoke 14.The horizontal top surface left and right symmetrically of T-shaped non-magnetic dividing plate 5 wherein fixedly is fitted on the end face of two rectangle magnetic conductive brake boots 11, and the vertical side of T-shaped non-magnetic dividing plate 5 is stretched the gap location at two rectangle magnetic conductive brake boots 11 downwards.Shifting axle 12 wherein comprises a rectangle permanent magnet 1, two rectangle concentrating flux plates 2, the non-magnetic plate 4 of rectangle.Two rectangle concentrating flux plates 2 transversely are symmetrically arranged along track 13, fix a rectangle permanent magnet 1 in the middle of two rectangle concentrating flux plates 2, and a non-magnetic plate 4 of rectangle is fixed on the positive top of rectangle permanent magnet 1.Rectangle permanent magnet 1 magnetizes in the transverse horizontal direction of track 13, and the left and right is respectively the N utmost point and the S utmost point.During enforcement, the left and right sides of rectangle permanent magnet 1 can be fixed respectively the rectangle concentrating flux plate 2 of fitting, by two joint bolts 3, the non-magnetic plate 4 of rectangle is captiveed joint with two rectangle concentrating flux plates 2, make a rectangle permanent magnet 1, two rectangle concentrating flux plates 2, the non-magnetic plate 4 of rectangle be fixed into one whole, form shifting axle 12.Gapless or little gap between two medial surfaces in the left and right sides of shifting axle 12 and the left and right of cavity volume, the requirement of suction when moving up and down the little requirement of resistance and satisfying the formation field circuit to satisfy shifting axle 12.
Along track 13 transversely, from left to right connect successively left end stripe shape concentrating flux plate 7, two magnetic conductive brake boots 11, the vertical side of T-shaped non-magnetic dividing plate 5, right-hand member stripe shape concentrating flux plate 7 with attachment bolt 10.
As shown in Figure 3 and Figure 4, with shifting axle 12 captive joint operating controls, operating control is to drive two cylinder pressure operating controls that shifting axle 12 moves in cavity volume vertically, operating control comprises the sliding-block linkage between two cylinder pressures 21 and the two cylinder pressures 21 of connection and shifting axle 12, drive the sliding-block linkage motion by two cylinder pressures 21, vertically move up and down in the cavity volume of yoke 14 thereby drive shifting axle 12.Sliding-block linkage is comprised of connecting rod 18,16, slide block 19 and ball connector 15,17.Two cylinder pressures 21 are connected with hydraulic efficiency gear on guideway vehicle by interface on it 23, two cylinder pressures 21 connect an end of connecting rod 20, the other end of connecting rod 20 connects an end of connecting rod 18 by slide block 19, connecting rod 18 and the 20 vertical layouts along track 13, the other end of connecting rod 18 connects the upper end of connecting rod 16 by ball connector 17, vertical side that connecting rod 16 is positioned at yoke 14 straight down, the lower end of connecting rod 16 connects shifting axles 12 by ball connector 15.Vertical side in yoke 14 is installed shrouding 22, has square groove on shrouding 22, and square groove can make shrouding 22 not interfere the motion of connecting rod 16.The press belt movable slider 19 that changes in two cylinder pressures 21 vertically moves along track 13, slide block 19 drives the connecting rod 18 that is attached thereto and vertically moves along track 13, connecting rod 18 drives by ball connector 17 connecting rod 16 that is attached thereto and moves, and connecting rod 16 drives shifting axle 12 and moves vertically.
show as Fig. 1-4, when permanent magnet track brake of the present invention was not worked, shifting axle 12 was positioned at the end position (as shown in Figure 2) on the cavity volume top of yoke 14, when guideway vehicle need to be braked, the suspension lifting device of decline guideway vehicle, drg moves down simultaneously, permanent magnet track brake of the present invention is dropped to apart from 30-40mm position directly over track 13, make permanent magnet track brake be in and treat control position, reduce the pressure in two cylinder pressure 21 clutch release slave cylinders, slide block 19 is vertically moved to the direction of two cylinder pressures 21 along track 13, slide block 19 drives the connecting rod 18 that is attached thereto and vertically moves to the direction of two cylinder pressures along track 13 together, at this moment, the upper end of the connecting rod 16 that is connected with shifting axle 12 is also to two cylinder pressure 21 motions, in order to satisfy this connecting rod 16 at the length requirement of vertical direction, this connecting rod 16 impels shifting axle 12 to move vertically downward, until shifting axle 12 is in the interior bottom of cavity volume of yoke 14, contact with the horizontal top surface of T-shaped non-magnetic dividing plate 5, the suspension lifting device continues to move down, drg also and then moves down, until drg contacts with track 13, at this moment, at shifting axle 12, stripe shape concentrating flux plate 7, magnetic conductive brake boots 11, form field circuit A between track 13, as shown in Figure 1, magnetic conductive brake boots 11 are adsorbed on track 13, form cliding friction by the force of sliding friction between magnetic conductive brake boots 11 and track 13, realize the braking of guideway vehicle.after rail vehicle braking is completed, increase the pressure in two cylinder pressure 21 clutch release slave cylinders, slide block 19 can be along track 13 vertically to moving away from the direction of two cylinder pressures 21, it is vertical to moving away from the direction of two cylinder pressures 21 along track 13 together that slide block 19 drives the connecting rod 18 that is attached thereto, at this moment, the upper end of the connecting rod 16 that is connected with shifting axle 12 is also to the direction motion away from two cylinder pressures 21, in order to satisfy this connecting rod 16 at the length requirement of vertical direction, this connecting rod 16 impels shifting axle 12 to move vertically upward, until shifting axle 12 is in top in the cavity volume of yoke 14, at this moment, form field circuit B by shifting axle 12 and U-shaped magnetic conductive cover 9, with drg the latter half magnet short-cut path, as shown in Figure 2, at this moment, there is no suction between magnetic conductive brake boots 11 and track 13, rising suspension lifting device, the Hoist braking device, make drg away from track 13, be in off-position.
Be more than concrete field of application of the present invention, in addition to the implementation, the present invention can also have other embodiment, and all employings are equal to replaces or within technical scheme that equivalent transformation forms all drops on invention which is intended to be protected.
Claims (6)
1. one kind is adopted two cylinder pressures to apply permanent magnet track brake with brake off, it is characterized in that: by yoke (14), shifting axle (12), operating control three parts form, yoke (14) be positioned at track (13) directly over, yoke (14) bottommost be two at the identical rectangle magnetic conductive brake boots (11) that transversely are symmetrically arranged of track (13), a stripe shape concentrating flux plate of each captive joint (7) directly over each rectangle magnetic conductive brake boots (11), a non-magnetic dividing plate of rectangle of each captive joint (8) directly over the top of each stripe shape concentrating flux plate (7), it is downward opening U-shaped magnetic conductive cover (9) directly over the top of two non-magnetic dividing plates of described rectangle (8), by two rectangle magnetic conductive brake boots (11), two stripe shape concentrating flux plates (7), two non-magnetic dividing plates of rectangle (8) and a U-shaped magnetic conductive cover (9) surround the cavity volume of yoke (14), shifting axle (12) and T-shaped non-magnetic dividing plate (5) are arranged in described cavity volume, the horizontal top surface left and right symmetrically of T-shaped non-magnetic dividing plate (5) fixedly is fitted on the end face of two rectangle magnetic conductive brake boots (11), and the vertical side of T-shaped non-magnetic dividing plate (5) is stretched the gap location at two rectangle magnetic conductive brake boots (11) downwards, shifting axle (12) comprises two the rectangle concentrating flux plates (2) that transversely are symmetrically arranged along track (13), be fixed with a rectangle permanent magnet (1) that magnetizes in the transverse horizontal direction in the middle of two rectangle concentrating flux plates (2), the positive top of rectangle permanent magnet (1) is fixed with a non-magnetic plate of rectangle (4), shifting axle (12) connects operating control, and operating control comprises two cylinder pressures (21) and the sliding-block linkage that connects two cylinder pressures (21) and shifting axle (12).
2. the two cylinder pressures of employing according to claim 1 apply the permanent magnet track brake with brake off, it is characterized in that: described sliding-block linkage is by connecting rod, ball connector and slide block (19) form, two cylinder pressures (21) connect first connecting rod (20) one ends, first connecting rod (20) other end connects second connecting rod (18) one ends by slide block (19), first, second connecting rod (20, 18) all along vertical layout of track (13), second connecting rod (18) other end connects third connecting rod (16) upper end by the first ball connector (17), third connecting rod (16) lower end connects shifting axle (12) by the second ball connector (15).
3. the two cylinder pressures of employing according to claim 1 apply the permanent magnet track brake with brake off, it is characterized in that: the non-magnetic plate of the first joint bolt (3) captive joint rectangle (4) and two rectangle concentrating flux plates (2).
4. the two cylinder pressures of employing according to claim 1 apply the permanent magnet track brake with brake off, and it is characterized in that: attachment bolt (10) from left to right connects vertical side, the right-hand member stripe shape concentrating flux plate (7) of left end stripe shape concentrating flux plate (7), two magnetic conductive brake boots (11), T-shaped non-magnetic dividing plate (5) successively.
5. the two cylinder pressures of employing according to claim 1 apply the permanent magnet track brake with brake off, and it is characterized in that: the second joint bolt (6) connects respectively the non-magnetic dividing plate of sidewall, rectangle (8) and the stripe shape concentrating flux plate (7) of U-shaped magnetic conductive cover (9) from top to bottom successively.
6. one kind is adopted two cylinder pressures to apply method of work with the permanent magnet track brake of brake off as claimed in claim 1, it is characterized in that comprising the steps:
1) permanent magnet track brake is dropped to position directly over track (13), reduce two cylinder pressure (21) internal pressures, drive bottom in the cavity volume that shifting axle (12) moves to yoke (14) vertically downward by sliding-block linkage; Continue again the decline permanent magnet track brake until contact with track (13), form field circuit A between shifting axle (12), stripe shape concentrating flux plate (7), magnetic conductive brake boots (11), track (13), make magnetic conductive brake boots (11) be adsorbed on upper realization of track (13) and brake;
2) increase two cylinder pressure (21) internal pressures, drive by sliding-block linkage the interior top of cavity volume that shifting axle (12) moves to yoke (14) vertically upward, form field circuit B between shifting axle (12) and U-shaped magnetic conductive cover (9), between magnetic conductive brake boots (11) and track (13) without suction, brake off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057256.1A CN103112473B (en) | 2013-02-25 | 2013-02-25 | Two cylinder pressure is adopted to apply and the permanent magnet track brake of brake off and method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057256.1A CN103112473B (en) | 2013-02-25 | 2013-02-25 | Two cylinder pressure is adopted to apply and the permanent magnet track brake of brake off and method of work |
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| Publication Number | Publication Date |
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| CN103112473A true CN103112473A (en) | 2013-05-22 |
| CN103112473B CN103112473B (en) | 2015-10-28 |
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| CN201310057256.1A Active CN103112473B (en) | 2013-02-25 | 2013-02-25 | Two cylinder pressure is adopted to apply and the permanent magnet track brake of brake off and method of work |
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| CN (1) | CN103112473B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515465A (en) * | 2016-12-23 | 2017-03-22 | 盐城振宇科技发展有限公司 | Directly operated type permanent magnet vortex flow wheel edge retarder and control method thereof |
| WO2019144570A1 (en) * | 2018-01-29 | 2019-08-01 | 中车唐山机车车辆有限公司 | Magnetic track brake control system and method, and maglev train |
| CN111430094A (en) * | 2020-04-23 | 2020-07-17 | 宁夏煜隆科技有限公司 | High-speed maglev train direction and eddy current braking integrated electromagnet device |
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| US5018605A (en) * | 1988-09-15 | 1991-05-28 | Tebel Pneumatiek B.V. | Magnetic rail brake device |
| US5647458A (en) * | 1994-12-16 | 1997-07-15 | Transferia Systems B.V. | Magnetic rail brake device |
| US5979610A (en) * | 1995-10-03 | 1999-11-09 | Sab Wabco B.V. | Rail brake device having permanent magnetic energization |
| RU2185984C2 (en) * | 2000-07-07 | 2002-07-27 | Общество с ограниченной ответственностью "Альфа" | Rail brake with permanent magnets |
| CN101699580A (en) * | 2009-11-03 | 2010-04-28 | 武汉福星科技发展有限公司 | Permanent magnet device capable of controlling magnetic force by changing magnetic circuit structure |
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2013
- 2013-02-25 CN CN201310057256.1A patent/CN103112473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018605A (en) * | 1988-09-15 | 1991-05-28 | Tebel Pneumatiek B.V. | Magnetic rail brake device |
| US5647458A (en) * | 1994-12-16 | 1997-07-15 | Transferia Systems B.V. | Magnetic rail brake device |
| US5979610A (en) * | 1995-10-03 | 1999-11-09 | Sab Wabco B.V. | Rail brake device having permanent magnetic energization |
| RU2185984C2 (en) * | 2000-07-07 | 2002-07-27 | Общество с ограниченной ответственностью "Альфа" | Rail brake with permanent magnets |
| CN101699580A (en) * | 2009-11-03 | 2010-04-28 | 武汉福星科技发展有限公司 | Permanent magnet device capable of controlling magnetic force by changing magnetic circuit structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515465A (en) * | 2016-12-23 | 2017-03-22 | 盐城振宇科技发展有限公司 | Directly operated type permanent magnet vortex flow wheel edge retarder and control method thereof |
| WO2019144570A1 (en) * | 2018-01-29 | 2019-08-01 | 中车唐山机车车辆有限公司 | Magnetic track brake control system and method, and maglev train |
| CN111430094A (en) * | 2020-04-23 | 2020-07-17 | 宁夏煜隆科技有限公司 | High-speed maglev train direction and eddy current braking integrated electromagnet device |
| CN111430094B (en) * | 2020-04-23 | 2021-11-23 | 盐城创策知识产权服务有限公司 | High-speed maglev train direction and eddy current braking integrated electromagnet device |
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| CN103112473B (en) | 2015-10-28 |
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Effective date of registration: 20210604 Address after: No. 159, Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangyin Intellectual Property Operation Co., Ltd Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |
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Address after: 214400 room 506-1, No. 18, Haigang Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangyin Intellectual Property Operation Co., Ltd Address before: No. 159, Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangyin Intellectual Property Operation Co., Ltd |