CN201438651U - Rotor structure of permanent magnet synchronous motor - Google Patents
Rotor structure of permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN201438651U CN201438651U CN2009202332275U CN200920233227U CN201438651U CN 201438651 U CN201438651 U CN 201438651U CN 2009202332275 U CN2009202332275 U CN 2009202332275U CN 200920233227 U CN200920233227 U CN 200920233227U CN 201438651 U CN201438651 U CN 201438651U
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- rotor
- permanent magnet
- magnetic
- synchronous motor
- arc
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a rotor structure of a permanent magnet synchronous motor, which comprises a rotor core, a rotor trunking, a rotor winding, and a rotating shaft, wherein, a plurality of arc-shaped permanent magnet grooves are arranged inside the rotor core, permanent magnets with air gaps are arranged in the permanent magnet grooves, and two end parts of the permanent magnet grooves are connected with two rotor non-magnetic magnetic bridges with concave arc-shaped structures. Because the bottom part of the rotor trunking is a semicircular structure, the sectional area of an aluminium casting conductor therein is larger than that of the prior art, and the conductor resistance is smaller, therefore, the capability of lock-insynchronism is strong when self-starting; the magnetic reluctance of the magnetic bridge with the circular arc structure is large, and the effect of magnetic separation is good in the same width; and the rotor structure has the advantages of simple structure, large rotor trunking area, small resistance of a rotor conductor, strong lock-insynchronism capability when self-starting, large permanent magnet volume, large magnetic flux per pole, long length of the non-magnetic magnetic bridge, large magnetic reluctance, and good non-magnetic effect.
Description
Technical field
The utility model relates to a kind of rotor structure, especially a kind of rotor structure of permagnetic synchronous motor.
Background technology
That permagnetic synchronous motor has is simple in structure, volume is little, light weight, reliable, efficient advantages of higher.Therefore, it has obtained extensive use in various fields such as space flight, national defence, industrial and agricultural production and daily lifes.Need to lay permanent magnet in the rotor of this motor, excessive and cause the permanent magnet utilance low excessively in order not make magnetic leakage factor in the motor, need good every the magnetic measure.In order to improve motor properties, need permanent magnet that higher magnetic flux is provided, therefore, the structural design of improving rotor can improve the performance of magneto greatly.Along with the fast development of power electronic device and control technology, the application of high-performance AC speed control device more and more widely, magneto also more applications in the speed governing occasion.The governor control characteristics of permanent magnet machine rotor damping winding and motor is closely related, and the structural research of rotor damping winding is had suitable meaning.
Summary of the invention
The purpose of this utility model is the weak point that overcomes prior art, provides a kind of simple in structure, and conductor resistance is less, and the ability of pulling in during self-starting is strong, every the rotor structure of the effective permagnetic synchronous motor of magnetic.
For achieving the above object, the technical solution of the utility model: comprise rotor core, rotor slot, the rotor winding, rotating shaft, be provided with the permanent magnet trough of a plurality of curved shapes in rotor core inside, be provided with the permanent magnet that leaves air-gap in the permanent magnet trough, the permanent magnet trough both ends are connected with the rotor of arcs of recesses structure every the magnetic magnetic bridge.
The permanent magnet trough of described a plurality of curved shapes is four; Described rotor is made up of the iron core that rotor slot circular arc bottom and permanent magnet trough arc end part are surrounded every the magnetic magnetic bridge; Described rotor slot is 20, is uniformly distributed in the rotor core surface, and its bottom is circular-arc; Described rotor winding is the cast aluminium conductor, and two ends utilize end ring to connect.
The beneficial effects of the utility model: because the bottom of rotor slot is a semi-circular structure, cast aluminium cross-sectional area of conductor wherein is long-pending bigger than prior art structure, and conductor resistance is less, so the ability of pulling in during self-starting is strong.Secondly, permanent magnet is an arc structure, and the rectangular configuration that its volume ratio is general is big, can improve every utmost point magnetic flux.Besides be to be arc structure every the magnetic magnetic bridge, its length is longer than general rectangle structure, and the magnetic resistance of arc structure magnetic bridge is big under same widths, so it is every the better effects if of magnetic.It is simple in structure, and the rotor slot area is big, and the resistance of rotor conductor is little, and the ability of pulling in during self-starting is strong, and the permanent magnet volume is big, and every utmost point magnetic flux is big, and long every magnetic magnetic bridge length, magnetic resistance is big, and is effective every magnetic, has practicality widely.
Description of drawings
Accompanying drawing is a rotor structure figure of the present utility model.
Among the figure: the 1-rotor core; The 2-rotor slot; 3-rotor winding; The 4-permanent magnet trough; The 5-permanent magnet; The 6-air-gap; The 7-rotor is every the magnetic magnetic bridge; 8-rotor slot circular arc bottom; 9-permanent magnet trough arc end part; The 10-rotating shaft.
Embodiment
Below in conjunction with in the accompanying drawing embodiment of the present utility model being done into to go up the description that goes on foot:
The rotor structure of the utility model permagnetic synchronous motor mainly is made up of every magnetic magnetic bridge 7, rotating shaft 10 rotor core 1, rotor slot 2, rotor winding 3, permanent magnet trough 4, permanent magnet 5, rotor.Wherein permanent magnet trough 4 is four, is located at rotor core 1 inside, curved shape symmetric arrangement, and the two ends of permanent magnet trough 4 is outwardly-bent, is the arcs of recesses structure; Be provided with the permanent magnet 5 that leaves air-gap 6 in the permanent magnet trough 4, permanent magnet 5 adopts rare earth permanent-magnetic material to make, and arc structure is installed in the rotor permanent magnet groove 4, and air-gap 6 is left at two ends; Rotor is arc structures every magnetic magnetic bridge 7, and it is formed by rotor slot circular arc bottom 8, permanent magnet trough arc end part 9 and rotor portion are unshakable in one's determination.Rotor core 1 is built up by the thick silicon steel sheet of 0.8～1.75mm, and permanent magnet trough 4 both ends are connected with the rotor of arcs of recesses structure every magnetic magnetic bridge 7, and rotor slot 2 is 20, be uniformly distributed in rotor core 1 surface, its bottom is circular-arc, and rotor winding 3 is the cast aluminium conductor, and two ends utilize end ring to connect.
Claims (5)
1. the rotor structure of a permagnetic synchronous motor, comprise rotor core (1), rotor slot (2), rotor winding (3), rotating shaft (10), it is characterized in that: be provided with the permanent magnet trough (4) of a plurality of curved shapes in rotor core (1) inside, be provided with the permanent magnet (5) that leaves air-gap (6) in the permanent magnet trough (4), permanent magnet trough (4) both ends are connected with the rotor of arcs of recesses structure every magnetic magnetic bridge (7).
2. the rotor structure of permagnetic synchronous motor according to claim 1, it is characterized in that: the permanent magnet trough of described a plurality of curved shapes (4) is four.
3. the rotor structure of permagnetic synchronous motor according to claim 1 is characterized in that: described rotor is made up of the iron core that rotor slot circular arc bottom (8) and permanent magnet trough arc end part (9) are surrounded every magnetic magnetic bridge (7).
4. the rotor structure of permagnetic synchronous motor according to claim 1, it is characterized in that: described rotor slot (2) is 20, is uniformly distributed in rotor core (1) surface, its bottom is circular-arc.
5. the rotor structure of permagnetic synchronous motor according to claim 1, it is characterized in that: described rotor winding (3) is the cast aluminium conductor, two ends utilize end ring to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202332275U CN201438651U (en) | 2009-07-17 | 2009-07-17 | Rotor structure of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202332275U CN201438651U (en) | 2009-07-17 | 2009-07-17 | Rotor structure of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438651U true CN201438651U (en) | 2010-04-14 |
Family
ID=42400620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202332275U Expired - Fee Related CN201438651U (en) | 2009-07-17 | 2009-07-17 | Rotor structure of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438651U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801236A (en) * | 2012-03-05 | 2012-11-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet auxiliary synchronous reluctance motor and rotor thereof, and assembly method for motor |
| CN103368292A (en) * | 2012-03-26 | 2013-10-23 | 信质电机股份有限公司 | Novel structure of rotor punching sheet of permanent magnet motor |
| TWI649940B (en) * | 2017-06-08 | 2019-02-01 | 財團法人工業技術研究院 | Rotor mechanism |
| CN109742875A (en) * | 2019-03-26 | 2019-05-10 | 邯郸市润田泵业有限公司 | A kind of praseodymium neodymium permanent magnet submersible pump motor Special rotor |
| CN110365179A (en) * | 2013-04-12 | 2019-10-22 | 西门子公司 | For the rotor of reluctance motor and the driving device of electricity |
| US10742080B2 (en) | 2017-06-08 | 2020-08-11 | Industrial Technology Research Institute | Annular magnetic flux channel rotor mechanism |
-
2009
- 2009-07-17 CN CN2009202332275U patent/CN201438651U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801236A (en) * | 2012-03-05 | 2012-11-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet auxiliary synchronous reluctance motor and rotor thereof, and assembly method for motor |
| CN103368292A (en) * | 2012-03-26 | 2013-10-23 | 信质电机股份有限公司 | Novel structure of rotor punching sheet of permanent magnet motor |
| CN110365179A (en) * | 2013-04-12 | 2019-10-22 | 西门子公司 | For the rotor of reluctance motor and the driving device of electricity |
| CN110365179B (en) * | 2013-04-12 | 2022-07-01 | 西门子公司 | Rotor for a reluctance machine and electric drive |
| TWI649940B (en) * | 2017-06-08 | 2019-02-01 | 財團法人工業技術研究院 | Rotor mechanism |
| US10742080B2 (en) | 2017-06-08 | 2020-08-11 | Industrial Technology Research Institute | Annular magnetic flux channel rotor mechanism |
| CN109742875A (en) * | 2019-03-26 | 2019-05-10 | 邯郸市润田泵业有限公司 | A kind of praseodymium neodymium permanent magnet submersible pump motor Special rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20130717 |