CN202586688U - A permanent magnetic synchronous servo motor with segmental rotor skewed poles - Google Patents
A permanent magnetic synchronous servo motor with segmental rotor skewed poles Download PDFInfo
- Publication number
- CN202586688U CN202586688U CN 201220007329 CN201220007329U CN202586688U CN 202586688 U CN202586688 U CN 202586688U CN 201220007329 CN201220007329 CN 201220007329 CN 201220007329 U CN201220007329 U CN 201220007329U CN 202586688 U CN202586688 U CN 202586688U
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- rotor
- servo motor
- magnet steel
- synchronous servo
- segmental
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a permanent magnetic synchronous servo motor with segmental rotor skewed poles. The permanent magnetic synchronous servo motor comprises a stator (1) and a rotor (2). The rotor (2) employs axial segmental structure and is at least divided into three segments (2-1~2-3). At least two magnetic steels are uniformly and circumferentially arranged on the outer wall of each segmental rotor (2). The N poles (4) and the S poles (5) of the circumferential magnetic steels are alternatively arranged along the rotor (2) at interval. Two adjacent segmental rotors (2) are staggered at a certain angle at the position of the cross section on same polarity of magnetic steels and the stagger direction of the rear segment is reverse to that of the front segment in order to form segmental rotor skewed pole structure. The rotor segmental skewed pole structure not only preferably weakens tooth harmonic and cogging torque and reduces noise of vibration, but also reduces the manufacture cost of the magnetic steel and is applicable to quantity production.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor, and especially a kind of segmentation skewed-rotor formula permanent magnet synchronous servo motor belongs to technical field of motors.
Background technology
Because the influence of slot effect and magnetic field non-sine property, permanent magnet synchronous motor often is attended by bigger slot ripples electromotive force, cogging torque and torque pulsation, has influenced the control precision of motor greatly, has limited its application in high accuracy servo system.In order to improve the control precision of motor, the main method that adopts skewed stator slot and skewed-rotor in the practical application.Wherein, skewed stator slot can effectively reduce cogging torque, but if adopt this structure, needs special frock during the stator core closed assembly, and difficulty of processing is big and consuming time, and the winding copper factor can not be too high, is unfavorable for the automation rule, influences motor and produces in enormous quantities.The frame mode of traditional skewed-rotor is the continuously oblique utmost point, though its effect and skewed stator slot are basic identical, magnet steel is made oblique sheet, has increased processing cost, has reduced stock utilization.
The utility model content
Technical problem:
The utility model is intended to solve the problem that exists in the prior art, provides a kind of segmentation oblique polar permanent magnetic synchronous servo motor, and it weakens slot ripples and cogging torque effectively; Reduce vibration noise; Improve the Electric Machine Control precision, also can reduce the manufacturing cost of magnet steel, be fit to produce in batches.
Technical scheme:
Segmentation skewed-rotor formula permanent magnet synchronous servo motor, it comprises stator and rotor two big main components, stator is connected with rotor coaxial, on rotor and the stator section of the cooperation outer wall respectively staggered rows show opposite polarity magnet steel with; Rotor is divided into three sections at least; Every section rotor outer wall is along the circumferential evenly distributed magnet steel that at least two alternating polarities are arranged; The two neighboring sections rotor forms segmentation skewed-rotor structure for the sectional position of same polarity magnet steel certain angle that staggers, and rotor is the segmentation rotor; Adjacent two-stage rotor is for the sectional position of same polarity magnet steel certain angle that staggers; And it is in the opposite direction that back segment and leading portion stagger, and rotor comprises the first rotor, second rotor and third trochanter, and the same polarity magnet steel of the relative the first rotor of said second rotor certain angle that staggers along clockwise direction; The same polarity magnet steel of relative second rotor of third trochanter is along the equal angular that counterclockwise staggers, and identical with the first rotor position.
Said magnet steel is a tile shape, external-mounted structure.
Beneficial effect:
The oblique polar permanent magnetic synchronous servo of segmentation weakens cogging torque effectively, reduces vibration and noise, improves the control precision of motor; Rotor segmentation, magnet steel need not to make oblique sheet, can reduce manufacturing cost, are fit to produce in batches.
Description of drawings
Fig. 1 is the axial sketch map of the utility model.
Fig. 2 is the cross sectional representation of the utility model.
Be denoted as among the figure: stator 1, rotor 2, rotating shaft 3, the magnet steel N utmost point 4, the magnet steel S utmost point 5, the first rotor 2-1, the second rotor 2-2, third trochanter 2-3.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation:
Fig. 1 is a kind of execution mode sketch map of this utility model; Fig. 1 is a kind of execution mode sketch map of this utility model; Fig. 1 has represented the oblique polar permanent magnetic synchronous servo motor of segmentation; It comprises stator 1 and 2 liang of big main components of rotor, and rotor portion is by three-stage rotor (synthetic integral body of 2-1～2-3); Shown in Figure 2 is the rotor cross-section sketch map, and every section rotor is shown the tile shape magnet steel along circumferential staggered rows, and adjacent two blocks of magnet steel are respectively the N utmost point 4 and the S utmost point 5.Can know that by Fig. 1 adjacent two-stage rotor is for the sectional position of same polarity magnet steel certain angle that staggers; And staggering of back segment and leading portion is in the opposite direction; The i.e. same polarity magnet steel of the relative the first rotor 2-1 of the second rotor 2-2 certain angle that staggers along clockwise direction; The same polarity magnet steel of the relative second rotor 2-2 of third trochanter 2-3 is along the equal angular that counterclockwise staggers, and is identical with the first rotor 2-1 position, forms segmentation skewed-rotor structure.
Claims (4)
1. segmentation skewed-rotor formula permanent magnet synchronous servo motor; It comprises stator (1) and rotor (2) two big main components; On the stator (1) and coaxial connection of rotor (2), rotor (2) and stator (1) section of cooperation outer wall respectively staggered rows show opposite polarity magnet steel (4 and 5); It is characterized in that: said rotor (2) is divided into three sections (2-1～2-3) at least; Every section rotor (2) outer wall is along the circumferential evenly distributed magnet steel that at least two alternating polarities are arranged; The two neighboring sections rotor forms segmentation skewed-rotor structure for the sectional position of same polarity magnet steel certain angle that staggers.
2. segmentation skewed-rotor formula permanent magnet synchronous servo motor according to claim 1; It is characterized in that: said rotor is the segmentation rotor; Adjacent two-stage rotor is for the sectional position of same polarity magnet steel certain angle that staggers, and back segment and leading portion stagger in the opposite direction.
3. segmentation skewed-rotor formula permanent magnet synchronous servo motor according to claim 2; It is characterized in that: said rotor (2) comprises the first rotor (2-1), second rotor (2-2) and third trochanter (2-3); And said second rotor (2-2) is the same polarity magnet steel of the first rotor (2-1) certain angle that staggers along clockwise direction relatively; The same polarity magnet steel of relative second rotor of third trochanter (2-3) (2-2) is along the equal angular that counterclockwise staggers, and identical with the first rotor (2-1) position.
4. segmentation skewed-rotor formula permanent magnet synchronous servo motor according to claim 1, it is characterized in that: described magnet steel is a tile shape, is external-mounted structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220007329 CN202586688U (en) | 2012-01-01 | 2012-01-01 | A permanent magnetic synchronous servo motor with segmental rotor skewed poles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220007329 CN202586688U (en) | 2012-01-01 | 2012-01-01 | A permanent magnetic synchronous servo motor with segmental rotor skewed poles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586688U true CN202586688U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220007329 Expired - Lifetime CN202586688U (en) | 2012-01-01 | 2012-01-01 | A permanent magnetic synchronous servo motor with segmental rotor skewed poles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586688U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618393A (en) * | 2013-11-25 | 2014-03-05 | 深圳市天天新能源技术有限公司 | Rotor |
| CN103872850A (en) * | 2014-04-11 | 2014-06-18 | 陶择 | Motor |
| CN104113171A (en) * | 2014-06-24 | 2014-10-22 | 华中科技大学 | Yoke-free closed slot type multi-plate permanent magnet motor |
| CN104158318A (en) * | 2014-07-30 | 2014-11-19 | 合肥工业大学 | Method for reducing cogging torque of permanent magnet motor |
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
| CN104467219A (en) * | 2013-09-20 | 2015-03-25 | 株式会社东芝 | Rotary electric machine, electric motor, machine, electric generator, and electric generating machine |
| CN104682594A (en) * | 2015-03-12 | 2015-06-03 | 申龙电梯股份有限公司 | Motor rotor of permanent magnet synchronous traction machine |
| CN105305684A (en) * | 2015-10-09 | 2016-02-03 | 清华大学 | Permanent magnetic motor for reducing polar-frequency radial electromagnetic exciting force and slot-frequency radial electromagnetic exciting force |
| CN107222070A (en) * | 2017-06-23 | 2017-09-29 | 江苏航天动力机电有限公司 | Compact asynchronous starting permagnetic synchronous motor segmented rotor processing technology |
| CN109546776A (en) * | 2019-01-11 | 2019-03-29 | 浙江德马科技股份有限公司 | Permanent magnet motor rotor structure and permanent magnet motor |
| CN114285198A (en) * | 2020-09-28 | 2022-04-05 | 上海汽车集团股份有限公司 | Electric automobile and motor rotor thereof |
-
2012
- 2012-01-01 CN CN 201220007329 patent/CN202586688U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426264A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor magnetic steel fixing structure and motor with same |
| US9543792B2 (en) | 2013-09-20 | 2017-01-10 | Kabushiki Kaisha Toshiba | Rotary electric machine, electric motor, machine, electric generator, and electric generating machine |
| CN104467219A (en) * | 2013-09-20 | 2015-03-25 | 株式会社东芝 | Rotary electric machine, electric motor, machine, electric generator, and electric generating machine |
| CN103618393A (en) * | 2013-11-25 | 2014-03-05 | 深圳市天天新能源技术有限公司 | Rotor |
| CN106160347A (en) * | 2014-04-11 | 2016-11-23 | 朱海燕 | A kind of energy-efficient motor |
| CN106160345B (en) * | 2014-04-11 | 2018-05-08 | 海汇新能源汽车有限公司 | The method of work of the energy-efficient motor of pure electric automobile |
| CN106169837B (en) * | 2014-04-11 | 2018-08-24 | 江苏微特利电机股份有限公司 | A kind of working method of energy-efficient motor |
| CN106160347B (en) * | 2014-04-11 | 2018-03-30 | 江苏航申航空科技有限公司 | A kind of energy-efficient motor |
| CN103872850A (en) * | 2014-04-11 | 2014-06-18 | 陶择 | Motor |
| CN106160345A (en) * | 2014-04-11 | 2016-11-23 | 朱海燕 | The pure electric automobile method of work of energy-efficient motor |
| CN106169837A (en) * | 2014-04-11 | 2016-11-30 | 朱海燕 | A kind of method of work of energy-efficient motor |
| CN104113171A (en) * | 2014-06-24 | 2014-10-22 | 华中科技大学 | Yoke-free closed slot type multi-plate permanent magnet motor |
| CN104158318A (en) * | 2014-07-30 | 2014-11-19 | 合肥工业大学 | Method for reducing cogging torque of permanent magnet motor |
| CN104682594A (en) * | 2015-03-12 | 2015-06-03 | 申龙电梯股份有限公司 | Motor rotor of permanent magnet synchronous traction machine |
| CN105305684A (en) * | 2015-10-09 | 2016-02-03 | 清华大学 | Permanent magnetic motor for reducing polar-frequency radial electromagnetic exciting force and slot-frequency radial electromagnetic exciting force |
| CN105305684B (en) * | 2015-10-09 | 2018-05-11 | 清华大学 | A kind of magneto for reducing pole frequency and groove frequency radial direction electro-magnetic exciting force |
| CN107222070A (en) * | 2017-06-23 | 2017-09-29 | 江苏航天动力机电有限公司 | Compact asynchronous starting permagnetic synchronous motor segmented rotor processing technology |
| CN109546776A (en) * | 2019-01-11 | 2019-03-29 | 浙江德马科技股份有限公司 | Permanent magnet motor rotor structure and permanent magnet motor |
| CN114285198A (en) * | 2020-09-28 | 2022-04-05 | 上海汽车集团股份有限公司 | Electric automobile and motor rotor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BORLIN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: DORNA TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314107, No. 99, Chi Chi Road, dry kiln town, Jiashan County, Zhejiang Province Patentee after: DORNA TECHNOLOGY CO., LTD. Address before: 314107, No. 99, Chi Chi Road, dry kiln town, Jiashan County, Zhejiang Province Patentee before: Dorlin Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |