CN113381526A - Stator permanent magnet type motor and use method thereof - Google Patents
Stator permanent magnet type motor and use method thereof Download PDFInfo
- Publication number
- CN113381526A CN113381526A CN202110394886.2A CN202110394886A CN113381526A CN 113381526 A CN113381526 A CN 113381526A CN 202110394886 A CN202110394886 A CN 202110394886A CN 113381526 A CN113381526 A CN 113381526A
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- Prior art keywords
- stator
- permanent magnet
- magnetizer
- armature winding
- type motor
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000004907 flux Effects 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 5
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 11
- 230000005347 demagnetization Effects 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of motor manufacturing, in particular to a stator permanent magnet type motor and a use method thereof; the stator mechanism comprises a stator iron core, an armature winding, a non-magnetizer, a magnetizer and a permanent magnet; the rotor mechanism is matched with the stator mechanism; the stator core is uniformly provided with a plurality of stator slots along the circumferential direction of the stator core, and a stator tooth part is formed between every two adjacent stator slots; the armature winding is arranged in the stator slot and is of a concentrated winding structure; the non-conductive magnets are fixed at the inner ends of the stator teeth, and the radial central axes of the non-conductive magnets are aligned with the radial central axes of the stator teeth; the two magnetizers are clamped at two sides of the non-magnetizer, and the two magnetizers, the non-magnetizer and the stator form a stator assembly; the permanent magnet is arranged between the two stator assemblies. The invention aims to provide a stator permanent magnet type motor and a using method thereof, aiming at the defects in the prior art and improving the practicability.
Description
Technical Field
The invention relates to the technical field of motor manufacturing, in particular to a stator permanent magnet type motor and a using method thereof.
Background
The stator permanent magnet type motor is characterized in that both the permanent magnet and the armature winding are arranged on the stator, the rotor is only an iron core provided with salient poles, and the stator permanent magnet type motor is free of the winding and the permanent magnet.
In the existing technology, the most studied are doubly salient motors and flux switching motors, the flux linkage of each phase winding turn linkage of the doubly salient motor is unipolar, and each phase magnetic circuit is unbalanced, so that the torque ripple of the motor is large. The permanent magnet of the flux switching motor is placed in the armature winding, so that heat dissipation of the permanent magnet is not facilitated, and the risk of demagnetization of the permanent magnet is high.
In view of the above problems, the present inventors have actively studied and innovated based on the practical experience and professional knowledge of many years of engineering application of such products and the application of theory, and designed a stator permanent magnet motor and a method of using the same, in which the armature winding is separated from the permanent magnet by heat dissipation, the risk of demagnetization of the permanent magnet is small, the permanent magnet is close to one side of the air gap, the air gap flux density is higher, which is beneficial to improving the torque density of the motor, and the present invention has great practicability.
Disclosure of Invention
The invention aims to provide a stator permanent magnet type motor and a using method thereof aiming at the defects in the prior art, an armature winding and a permanent magnet are separated by heat dissipation, the risk of demagnetization of the permanent magnet is small, the permanent magnet is close to one side of an air gap, the air gap has higher magnetic density, the torque density of the motor is favorably improved, and the stator permanent magnet type motor has high practicability.
In order to achieve the purpose, the invention adopts the technical scheme that:
the method comprises the following steps:
the stator mechanism comprises a stator iron core, an armature winding, a non-magnetizer, a magnetizer and a permanent magnet;
the rotor mechanism is matched with the stator mechanism to form a magnetic field of a closed loop;
the stator core is uniformly provided with a plurality of stator slots along the circumferential direction, a stator tooth part is formed between every two adjacent stator slots, and the outer ends of the adjacent stator teeth are connected to form a stator yoke part;
the armature winding is arranged in the stator slot and is of a concentrated winding structure;
the non-conductive magnets are fixed at the inner ends of the stator teeth, and the radial central axes of the non-conductive magnets are aligned with the radial central axes of the stator teeth;
the two magnetizers are clamped at two sides of the non-magnetizer, and the two magnetizers, the non-magnetizer and the stator form a stator assembly;
the permanent magnet is arranged between the two stator assemblies.
Further, the widths of the non-magnetic conductor, the magnetic conductor and the permanent magnet in the circumferential direction of the stator core are the same.
Furthermore, the magnetizing directions of two adjacent permanent magnets in the same stator tooth part are the same, and the magnetizing directions of the permanent magnets in the adjacent stator tooth parts are opposite.
Furthermore, a plurality of salient pole teeth are distributed on the rotor mechanism.
Further, the permanent magnet is spaced apart from a heat dissipating portion of the armature winding.
Further, the stator slot is of an open slot structure.
Further, the non-magnetizer is of an epoxy resin structure.
Furthermore, the magnetizer is a structure formed by laminating a plurality of silicon steel sheets.
Further, the permanent magnet is of a neodymium iron boron or ferrite structure.
Further, the method comprises the following steps:
firstly, assembling the stator mechanism, and uniformly arranging 3n stator slots on the stator core along the circumferential direction according to the use condition, wherein n is a positive integer and is more than or equal to 1;
secondly, the armature windings are intensively wound in each stator slot, and the non-magnetizers are fixed at the inner ends of the stator tooth parts, and the radial central axes of the armature windings and the stator tooth parts are aligned;
fixing the magnetizers on two sides of the non-magnetizer to form the stator assembly;
step four, uniformly placing 6n stator assemblies along the circumferential direction of the stator core, and placing one permanent magnet between every two stator assemblies; completing the assembly work;
and step five, starting the rotor mechanism, wherein the rotor mechanism generates a changing magnetic field in the armature winding through rotation, so as to induce a changing electric potential, and the magnetic flux direction of the armature winding is clockwise or anticlockwise along with the difference of the rotation position of the rotor mechanism, so that a bipolar permanent magnetic flux linkage is obtained in the armature winding, and the electric potential which changes periodically is induced.
Through the technical scheme of the invention, the following technical effects can be realized:
the armature winding and the permanent magnet are separated in a heat dissipation mode, the demagnetization risk of the permanent magnet is small, the permanent magnet is close to one side of the air gap, the air gap flux density is higher, the improvement of the torque density of the motor is facilitated, and the practicability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an overall schematic view of a stator permanent magnet-type electric machine and a method of using the same in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a stator permanent magnet type motor and a method of using the same according to an embodiment of the present invention when a magnetic flux direction is clockwise;
fig. 3 is a schematic structural diagram of a stator permanent magnet type motor and a method of using the same according to an embodiment of the present invention when a magnetic flux direction is counterclockwise;
fig. 4 is a permanent magnet chain diagram of an armature winding chain of a stator permanent magnet-type electric machine and method of use thereof in an embodiment of the present invention;
reference numerals: 1. stator core, 2, armature winding, 3, non-magnetizer, 4, permanent magnet, 5, magnetizer, 6 and rotor mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
A stator permanent magnet motor and a method of using the same are disclosed, as shown in figures 1 to 4,
the method comprises the following steps:
the stator mechanism comprises a stator iron core 1, an armature winding 2, a non-magnetizer 3, a magnetizer 5 and a permanent magnet 4;
the rotor mechanism 6 is matched with the stator mechanism to form a magnetic field of a closed loop;
the stator core 1 is uniformly provided with a plurality of stator slots along the circumferential direction, a stator tooth part is formed between every two adjacent stator slots, and the outer ends of the adjacent stator teeth are connected to form a stator yoke part;
the armature winding 2 is arranged in the stator slot and is of a concentrated winding structure;
the non-electromagnet 3 is fixed at the inner end of the stator tooth part, and the radial central axis of the non-electromagnet 3 is aligned with the radial central axis of the stator tooth part;
the two magnetizers 5 are clamped at two sides of the non-magnetizer 3, and the two magnetizers, the non-magnetizer 3 and the stator assembly are formed;
the permanent magnet 4 is arranged between the two stator components.
Specifically, the stator mechanism is assembled, 3n stator slots are uniformly formed in the stator core 1 along the circumferential direction according to the using condition, n is a positive integer, n is larger than or equal to 1, and the specific numerical value of n is determined according to the actual condition. The armature winding 2 and the permanent magnet 4 are separated through heat dissipation, the risk of demagnetization of the permanent magnet 4 is small, the permanent magnet 4 is close to one side of an air gap, the air gap flux density is higher, and the improvement of the torque density of the motor is facilitated.
As shown in fig. 1 to 4, the non-magnetic conductor 3, the magnetic conductor 5, and the permanent magnet 4 preferably have the same width in the circumferential direction of the stator core 1.
Specifically, the widths of the non-magnetizer 3, the magnetizer 5 and the permanent magnet 4 in the circumferential direction of the stator core 1 are designed to be the same, so that the assembly and the mass production are facilitated, and the production efficiency is improved.
As shown in fig. 1 to 4, preferably, two adjacent permanent magnets 4 in the same stator tooth have the same magnetizing direction, and the magnetizing directions of the permanent magnets 4 in the adjacent stator teeth are opposite.
Specifically, two adjacent permanent magnets 4 in the same stator tooth have the same magnetizing direction, and the magnetizing directions of the permanent magnets 4 in the adjacent stator teeth are opposite, so that the rotor mechanism 6 generates a changing magnetic field in the armature winding 2 through rotation, and a changing electric potential is induced. Because the magnetizing directions of the permanent magnets 4 are different, the magnetic flux directions of the armature winding 2 are clockwise and anticlockwise alternated along with different rotating positions of the rotor mechanism 6, a bipolar permanent magnet flux linkage is obtained in the armature winding 2, a periodically-changed potential is induced, and the operation stability is ensured.
As shown in fig. 1 to 4, a plurality of salient pole teeth are preferably distributed on the rotor mechanism 6.
As shown in fig. 1 to 4, the permanent magnet 4 is preferably spaced apart from the heat dissipation portion of the armature winding 2.
Specifically, the permanent magnet 4 is spaced apart from the heat radiating portion of the armature winding 2, so that the risk of demagnetization is reduced.
As shown in fig. 1 to 4, the stator slot is preferably an open slot structure.
Specifically, the stator slot is designed to be an open slot structure, so that the armature winding 2 can be conveniently inserted.
As shown in fig. 1 to 4, the non-magnetic conductive body 3 is preferably made of epoxy resin.
As a preferred example of the above embodiment, as shown in fig. 1 to 4, the magnetizer 5 is a structure formed by laminating a plurality of silicon steel sheets.
As shown in fig. 1 to 4, the permanent magnet 4 is preferably of a neodymium iron boron or ferrite structure.
As shown in fig. 1 to 4, the method preferably includes the following steps:
firstly, assembling the stator mechanism, and uniformly arranging 3n stator slots on the stator core 1 along the circumferential direction according to the use condition, wherein n is a positive integer and is more than or equal to 1;
secondly, the armature winding 2 is intensively wound in each stator slot, and a non-magnetizer 3 is fixed at the inner end of the stator tooth part, and the radial central axes of the armature winding and the non-magnetizer are aligned;
fixing the magnetizers 5 on two sides of the non-magnetizer 3 to form the stator assembly;
step four, uniformly placing 6n stator assemblies along the circumferential direction of the stator core 1, and placing one permanent magnet 4 between every two stator assemblies; completing the assembly work;
and step five, starting the rotor mechanism 6, wherein the rotor mechanism 6 induces a changing potential by rotating a changing magnetic field generated in the armature winding 2, and the magnetic flux direction of the armature winding 2 is clockwise or counterclockwise along with the difference of the rotation position of the rotor mechanism 6, so that a bipolar permanent magnetic flux linkage is obtained in the armature winding 2, and the periodically changing potential is induced.
Particularly, the use method is beneficial to rapidly finishing the installation of the stator, and the use efficiency is improved. Meanwhile, through the cooperation of the rotor mechanism 6 and the stator mechanism, the electric potential which changes periodically is induced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A stator permanent magnet-type motor, comprising:
the stator mechanism comprises a stator iron core (1), an armature winding (2), a non-magnetizer (3), a magnetizer (5) and a permanent magnet (4);
the rotor mechanism (6) is matched with the stator mechanism to form a magnetic field of a closed loop;
the stator core (1) is uniformly provided with a plurality of stator slots along the circumferential direction, a stator tooth part is formed between every two adjacent stator slots, and the outer ends of the adjacent stator teeth are connected to form a stator yoke part;
the armature winding (2) is arranged in the stator slot and is of a concentrated winding structure;
the non-electromagnet (3) is fixed at the inner end of the stator tooth part, and the radial central axis of the non-electromagnet (3) is aligned with the radial central axis of the stator tooth part;
the two magnetizers (5) are clamped at two sides of the non-magnetizer (3) and form a stator assembly;
the permanent magnet (4) is arranged between the two stator components.
2. A stator permanent magnet type motor according to claim 1, wherein the non-magnet conductive body (3), the magnetic conductor (5) and the permanent magnet (4) have the same width in the circumferential direction of the stator core (1).
3. The stator permanent magnet type motor according to claim 1, wherein two adjacent permanent magnets (4) in the same stator tooth portion have the same magnetizing direction, and the magnetizing directions of the permanent magnets (4) in the adjacent stator tooth portions are opposite.
4. A stator permanent magnet type electric machine according to claim 1, characterized in that said rotor means (6) is provided with a plurality of salient pole teeth.
5. A stator permanent magnet type motor according to claim 1, wherein the permanent magnets (4) are spaced from a heat radiating portion of the armature winding (2).
6. The stator permanent magnet-type electric motor according to claim 1, wherein the stator slots are open slot structures.
7. A stator permanent magnet type motor according to claim 1, wherein the non-magnet conductive body (3) is of epoxy resin structure.
8. The stator permanent magnet type motor according to claim 1, wherein the magnetizer (5) has a structure in which a plurality of silicon steel sheets are laminated.
9. A stator permanent magnet machine according to claim 1, characterized in that the permanent magnets (4) are of neodymium iron boron or ferrite construction.
10. The method of using a stator permanent magnet-type electric machine according to claim 1, comprising the steps of:
firstly, assembling the stator mechanism, and uniformly arranging 3n stator slots on the stator core (1) along the circumferential direction according to the use condition, wherein n is a positive integer and is more than or equal to 1;
secondly, the armature windings (2) are intensively wound in each stator slot, and non-magnetizers (3) are fixed at the inner ends of the stator tooth parts, and the radial central axes of the armature windings and the non-magnetizers are aligned;
fixing the magnetizers (5) on two sides of the non-magnetizer (3) to form the stator assembly;
step four, uniformly placing 6n stator assemblies along the circumferential direction of the stator core (1), and placing one permanent magnet (4) between every two stator assemblies; completing the assembly work;
and step five, starting the rotor mechanism (6), wherein the rotor mechanism (6) generates a changing magnetic field in the armature winding (2) through rotation, so as to induce a changing electric potential, and the magnetic flux direction of the armature winding (2) is clockwise or anticlockwise along with the difference of the rotation position of the rotor mechanism (6), so that a bipolar permanent magnetic flux linkage is obtained in the armature winding (2), and the electric potential which changes periodically is induced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394886.2A CN113381526B (en) | 2021-04-13 | 2021-04-13 | Stator permanent magnet type motor and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394886.2A CN113381526B (en) | 2021-04-13 | 2021-04-13 | Stator permanent magnet type motor and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113381526A true CN113381526A (en) | 2021-09-10 |
| CN113381526B CN113381526B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110394886.2A Active CN113381526B (en) | 2021-04-13 | 2021-04-13 | Stator permanent magnet type motor and use method thereof |
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| Country | Link |
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| CN (1) | CN113381526B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258221A (en) * | 2000-03-10 | 2001-09-21 | Genesis:Kk | Self-starting synchronous motor |
| CN107359712A (en) * | 2017-07-19 | 2017-11-17 | 南京航空航天大学 | Winding modularization magneto |
| CN108092480A (en) * | 2018-01-11 | 2018-05-29 | 南方科技大学 | A kind of magneto |
| CN111181266A (en) * | 2020-01-10 | 2020-05-19 | 南京航空航天大学 | Direct current bias type magnetic flux reverse permanent magnet motor |
-
2021
- 2021-04-13 CN CN202110394886.2A patent/CN113381526B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258221A (en) * | 2000-03-10 | 2001-09-21 | Genesis:Kk | Self-starting synchronous motor |
| CN107359712A (en) * | 2017-07-19 | 2017-11-17 | 南京航空航天大学 | Winding modularization magneto |
| CN108092480A (en) * | 2018-01-11 | 2018-05-29 | 南方科技大学 | A kind of magneto |
| CN111181266A (en) * | 2020-01-10 | 2020-05-19 | 南京航空航天大学 | Direct current bias type magnetic flux reverse permanent magnet motor |
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| Publication number | Publication date |
|---|---|
| CN113381526B (en) | 2022-12-09 |
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Inventor after: Wang Qin Inventor after: Wang Chen Inventor after: Huang Jian Inventor after: Zhou Yang Inventor after: Han Jianbin Inventor after: Chen Wei Inventor after: Lin Jian Inventor after: Guo Lezhi Inventor before: Sun Yandong Inventor before: Zhang Haitao Inventor before: Wang Chen Inventor before: Huang Jian Inventor before: Zhou Yang Inventor before: Han Jianbin Inventor before: Chen Wei Inventor before: Wang Qin Inventor before: Lin Jian Inventor before: Guo Lezhi |
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Effective date of registration: 20240115 Address after: 210000 No. 223, Shui Simen street, Nanjing, Jiangsu. Patentee after: JIANGSU ENERGY TECH DEVELOPMENT Co.,Ltd. Patentee after: Wang Qin Address before: 210017, No. 223 Simon Street, Jianye District, Jiangsu, Nanjing Patentee before: JIANGSU ENERGY TECH DEVELOPMENT Co.,Ltd. |
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