CN109149816B - Spliced permanent magnet motor outer rotor - Google Patents
Spliced permanent magnet motor outer rotor Download PDFInfo
- Publication number
- CN109149816B CN109149816B CN201811138797.6A CN201811138797A CN109149816B CN 109149816 B CN109149816 B CN 109149816B CN 201811138797 A CN201811138797 A CN 201811138797A CN 109149816 B CN109149816 B CN 109149816B
- Authority
- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- magnetic barrier
- layer
- spliced
- 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.)
- Active
Links
- 239000002356 single layer Substances 0.000 claims abstract description 28
- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses an outer rotor of a spliced permanent magnet motor, which comprises a hollow cylindrical single-layer rotor core; the outer rotor of the permanent magnet motor is hollow cylindrical and is formed by combining a plurality of single-layer rotor cores along the central axis direction of the single-layer rotor cores; the single-layer rotor core comprises rotor splicing blocks in a sector shape; the single-layer rotor core is formed by splicing a plurality of rotor splicing blocks; the surface of the rotor splicing block is provided with a permanent magnet mounting groove and a magnetic barrier groove; the magnetic barrier grooves are distributed on the outer sides of the permanent magnet mounting grooves. The invention improves the flexibility of the outer rotor structure, and simultaneously, the outer rotor is convenient to maintain.
Description
Technical Field
The invention relates to the technical field of permanent magnet motors, in particular to a spliced permanent magnet motor outer rotor.
Background
With the continuous perfection of the permanent magnet motor technology and the rapid development of the permanent magnet material industry, in the elevator industry, the direct drive permanent magnet synchronous motor is used for replacing the three-phase asynchronous motor, so that the permanent magnet synchronous motor is increasingly popularized and applied, and is particularly embodied in a transmission system which needs low-speed and large-torque output in the elevator industry.
At present, the outer rotor of the permanent magnet motor is of an integrated structure, the flexibility of the structure is low, the manufacturing steps are complex, and the whole outer rotor cannot be used if one step is wrong in the manufacturing process. In addition, when the surface of the outer rotor is damaged, the whole rotor needs to be replaced, so that the maintenance cost is high, and the maintenance is inconvenient. Therefore, the flexibility of the structure is improved, the manufacturing cost is reduced, and the convenience of maintenance is improved as a design target of the outer rotor.
Disclosure of Invention
Aiming at the technical problems, the invention aims at: the spliced permanent magnet motor outer rotor has the advantages that the flexibility of the outer rotor structure is improved, and meanwhile, the outer rotor is convenient to maintain.
The technical solution of the invention is realized as follows: the spliced permanent magnet motor outer rotor comprises a hollow cylindrical single-layer rotor core; the outer rotor of the permanent magnet motor is hollow cylindrical and is formed by combining a plurality of single-layer rotor cores along the central axis direction of the single-layer rotor cores; the single-layer rotor core comprises rotor splicing blocks in a sector shape; the single-layer rotor core is formed by splicing a plurality of rotor splicing blocks along the circumferential direction; the surface of the rotor splicing block is provided with a permanent magnet mounting groove and a magnetic barrier groove; the magnetic barrier grooves are distributed on the outer sides of the permanent magnet mounting grooves;
Rotor splicing blocks on the adjacent single-layer rotor cores are staggered with each other along the circumferential direction;
The magnetic barrier grooves comprise first long-strip-shaped magnetic barrier grooves and second long-strip-shaped magnetic barrier grooves; the first magnetic barrier groove is symmetrically arranged at the left side and the right side of the permanent magnet mounting groove by taking the central line of the permanent magnet mounting groove as the central line; the second magnetic barrier groove is symmetrically arranged at the lower side of the permanent magnet mounting groove by taking the central line of the permanent magnet mounting groove as the central line.
Further: the left side face of the rotor splicing block along the circumferential direction is provided with a bulge; the right side surface of the rotor splicing block along the circumferential direction is provided with a concave part; the protrusions are matched with the concave parts; the rotor splicing blocks are spliced into a hollow cylindrical single-layer rotor core through the matching installation of the protrusions and the recesses of the adjacent rotor splicing blocks.
Further: the permanent magnet mounting groove is in a straight shape or a V shape; the center line of the permanent magnet mounting groove passes through the center of the rotor splicing block and equally divides the rotor splicing block.
Further: the permanent magnet material installed in the permanent magnet installation groove is ferrite or neodymium iron boron.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the spliced permanent magnet motor outer rotor is reasonable in structural design, is assembled in a spliced mode, improves the flexibility of an outer rotor structure, reduces manufacturing cost, is more convenient to maintain, is provided with the magnetic barrier groove outside the permanent magnet, reduces the magnetic loss of the permanent magnet, and enhances the overload capacity of the permanent magnet motor.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
Fig. 1 is a schematic diagram of a part of a spliced outer rotor of a permanent magnet motor according to the present invention;
FIG. 2 is a schematic view of a spliced single-layer rotor core part structure of the present invention;
FIG. 3 is a schematic view of the structure of a rotor segment of the present invention;
Wherein: 1. a single-layer rotor core; 2. a rotor splice block; 21. a protrusion; 22. a concave portion; 3. a permanent magnet mounting groove; 4. a first magnetic barrier slot; 41. and a second magnetic barrier groove.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Fig. 1-3 show an outer rotor of a spliced permanent magnet motor according to the present invention, which comprises a hollow cylindrical single-layer rotor core 1 (shown in fig. 2). The permanent magnet motor outer rotor is hollow cylindrical and is formed by combining a plurality of single-layer rotor cores 1 along the central axis direction of the single-layer rotor cores 1 (shown in fig. 1). The single-layer rotor core 1 comprises rotor splicing blocks 2 which are in a sector shape, and the single-layer rotor core 1 is formed by splicing a plurality of rotor splicing blocks 2 along the circumferential direction. Permanent magnet mounting grooves 3 and magnetic barrier grooves are formed in the surface of the rotor splicing block 2. The permanent magnet mounting groove 3 is in a straight shape or a V shape. The center line of the permanent magnet mounting groove 3 passes through the center of the rotor splicing block 2 and equally divides the rotor splicing block 2. The magnetic barrier grooves are distributed on the outer sides of the permanent magnet mounting grooves 3. The magnetic barrier grooves include a first magnetic barrier groove 4 in a long shape and a second magnetic barrier groove 41 in a long shape. The first magnetic barrier grooves 4 are symmetrically arranged on the left side and the right side of the permanent magnet mounting groove 3 by taking the central line of the permanent magnet mounting groove 3 as the central line. The second magnetic barrier groove 41 is symmetrically arranged at the lower side of the permanent magnet mounting groove 3 by taking the central line of the permanent magnet mounting groove 3 as the central line, and through the structural design, the magnetic loss of the permanent magnet can be reduced, and the use quality of the permanent magnet motor can be improved. Wherein the number of rotor segments 2 depends on the actual need.
Wherein, the left side surface of the rotor splicing block 2 along the circumferential direction is provided with a dovetail-shaped bulge 21. The rotor segment 2 is provided with a dovetail-shaped recess 22 on the right side in the circumferential direction. The shape and size of the protrusions 21 and the recesses 22 are consistent and fit. The rotor splicing blocks 2 are spliced into the hollow cylindrical single-layer rotor core 1 by the matching installation of the protrusions 21 and the recesses 22 of the adjacent rotor splicing blocks 2.
Wherein, the permanent magnet material installed in the permanent magnet installation groove 3 can use ferrite or neodymium iron boron.
Wherein, in order to improve the rotor splicing blocks 2 on the adjacent single-layer rotor core 1 of the permanent magnet motor, the rotor splicing blocks are staggered with each other along the circumferential direction. The average mechanical torque of the permanent magnet motor can be maximized through a certain staggering angle.
The structural design of this embodiment is reasonable, adopts the mode of concatenation to assemble, has improved the flexibility of external rotor structure, has reduced manufacturing cost, and it is also more convenient to maintain, is equipped with the magnetic barrier groove outside the permanent magnet, has reduced the magnetic loss of permanent magnet, and the steady state nature of magnetic field is better, has also strengthened permanent magnet motor's overload capacity.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (4)
1. The spliced permanent magnet motor outer rotor comprises a hollow cylindrical single-layer rotor core; the method is characterized in that: the outer rotor of the permanent magnet motor is hollow cylindrical and is formed by combining a plurality of single-layer rotor cores along the central axis direction of the single-layer rotor cores; the single-layer rotor core comprises rotor splicing blocks in a sector shape; the single-layer rotor core is formed by splicing a plurality of rotor splicing blocks along the circumferential direction; the surface of the rotor splicing block is provided with a permanent magnet mounting groove and a magnetic barrier groove; the magnetic barrier grooves are distributed on the outer sides of the permanent magnet mounting grooves;
rotor splicing blocks on adjacent single-layer rotor cores are staggered with each other along the circumferential direction;
The magnetic barrier grooves comprise first long-strip-shaped magnetic barrier grooves and second long-strip-shaped magnetic barrier grooves; the first magnetic barrier groove is symmetrically arranged at the left side and the right side of the permanent magnet mounting groove by taking the central line of the permanent magnet mounting groove as the central line; the second magnetic barrier groove is symmetrically arranged at the lower side of the permanent magnet mounting groove by taking the central line of the permanent magnet mounting groove as the central line.
2. The spliced permanent magnet motor outer rotor of claim 1, wherein: the left side face of the rotor splicing block along the circumferential direction is provided with a bulge; the right side surface of the rotor splicing block along the circumferential direction is provided with a concave part; the protrusions are matched with the concave parts; the rotor splicing blocks are spliced into a hollow cylindrical single-layer rotor core through the matching installation of the protrusions and the recesses of the adjacent rotor splicing blocks.
3. The spliced permanent magnet motor outer rotor of claim 1, wherein: the permanent magnet mounting groove is in a straight shape or a V shape; the center line of the permanent magnet mounting groove passes through the center of the rotor splicing block and equally divides the rotor splicing block.
4. The spliced permanent magnet motor outer rotor of claim 1, wherein: the permanent magnet material installed in the permanent magnet installation groove is ferrite or neodymium iron boron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138797.6A CN109149816B (en) | 2018-09-28 | 2018-09-28 | Spliced permanent magnet motor outer rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138797.6A CN109149816B (en) | 2018-09-28 | 2018-09-28 | Spliced permanent magnet motor outer rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149816A CN109149816A (en) | 2019-01-04 |
| CN109149816B true CN109149816B (en) | 2024-07-16 |
Family
ID=64813133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811138797.6A Active CN109149816B (en) | 2018-09-28 | 2018-09-28 | Spliced permanent magnet motor outer rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149816B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247495B (en) * | 2019-07-18 | 2022-02-01 | 奇瑞汽车股份有限公司 | Rotor punching sheet, rotor core, driving motor for electric automobile and manufacturing method |
| CN114552831B (en) * | 2022-03-02 | 2024-09-10 | 常州神力电机股份有限公司 | Combined type diesel motor rotor workpiece and assembly method thereof |
| CN116470677A (en) * | 2023-04-13 | 2023-07-21 | 昆山菱度电机有限公司 | Rotor suitable for permanent magnet motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846568A (en) * | 2016-03-23 | 2016-08-10 | 东南大学 | Modularized rotor of outer rotor hub motor |
| CN208782589U (en) * | 2018-09-28 | 2019-04-23 | 苏州润吉驱动技术有限公司 | A kind of spliced outer rotor of permanent magnet motor |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007060889A (en) * | 2005-07-29 | 2007-03-08 | Yaskawa Electric Corp | Permanent magnet motor |
| CN102237735B (en) * | 2010-03-09 | 2014-04-16 | 中山大洋电机制造有限公司 | Permanent magnet rotor structure and motor using same |
| CN102369650B (en) * | 2010-04-01 | 2015-08-05 | 富士电机株式会社 | Rotor of permanent magnet type rotating electric machine |
| DE102013200476A1 (en) * | 2013-01-15 | 2014-02-27 | Siemens Aktiengesellschaft | Permanent magnet-excited two-pole synchronous machine e.g. wind force generator, for use as inner rotor machine in wind-power plant, has pockets comprising magnets that exhibits magnetization direction to form magnetic poles of rotor |
| CN203014620U (en) * | 2013-01-16 | 2013-06-19 | 珠海格力节能环保制冷技术研究中心有限公司 | A permanent magnetic motor |
| CN104600946B (en) * | 2013-12-25 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Synchronous magnetic resistance motor |
| CN105656267B (en) * | 2016-03-16 | 2017-11-28 | 合肥学院 | Bipolarity Transverse Flux Permanent Magnetic Synchronous Machine |
| CN106026597B (en) * | 2016-07-11 | 2018-08-21 | 江苏大学 | Built-in magnetic hinders formula magnetic-field-enhanced permanent-magnetic brushless motor |
| CN106451852A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and permanent magnet motor |
| CN206283346U (en) * | 2016-12-29 | 2017-06-27 | 湘潭电机股份有限公司 | A kind of high speed permanent magnet motor rotor structure and motor |
| CN107070027A (en) * | 2016-12-29 | 2017-08-18 | 湘潭电机股份有限公司 | A kind of high speed permanent magnet motor rotor structure and motor |
| CN106953438A (en) * | 2017-04-11 | 2017-07-14 | 广东美的环境电器制造有限公司 | Outer rotor and punching segments thereof, outer rotor core and components thereof, and manufacturing method |
| CN107968502B (en) * | 2017-12-21 | 2024-05-07 | 珠海格力电器股份有限公司 | Motor rotor and permanent magnet motor |
| CN108418321A (en) * | 2018-03-13 | 2018-08-17 | 东南大学 | An asymmetric rotor type permanent magnet motor |
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2018
- 2018-09-28 CN CN201811138797.6A patent/CN109149816B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846568A (en) * | 2016-03-23 | 2016-08-10 | 东南大学 | Modularized rotor of outer rotor hub motor |
| CN208782589U (en) * | 2018-09-28 | 2019-04-23 | 苏州润吉驱动技术有限公司 | A kind of spliced outer rotor of permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109149816A (en) | 2019-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200902 Address after: 215213, No. 888, Kang Li Avenue, Fen Hu hi tech Industrial Development Zone, Wujiang District, Jiangsu, Suzhou Applicant after: CANNY ELEVATOR Co.,Ltd. Address before: 215200 Kangli Avenue 799, Fenhu Town, Wujiang District, Suzhou City, Jiangsu Province Applicant before: SUZHOU RUNJI DRIVING TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |