CN203800788U - Novel permanent magnet motor stator-rotor - Google Patents
Novel permanent magnet motor stator-rotor Download PDFInfo
- Publication number
- CN203800788U CN203800788U CN201420082764.5U CN201420082764U CN203800788U CN 203800788 U CN203800788 U CN 203800788U CN 201420082764 U CN201420082764 U CN 201420082764U CN 203800788 U CN203800788 U CN 203800788U
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- Prior art keywords
- arc
- rotor
- magnet motor
- permanent magnet
- motor stator
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- Expired - Fee Related
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Abstract
The utility model discloses a novel permanent magnet motor stator-rotor comprising a stator iron core, magnetic steel and a rotating shaft. Magnetic steel is arranged on the rotating shaft. The external diameter of the stator iron core is 70mm, the internal diameter is 37mm and length is 50mm. Each tooth end of the stator iron core is provided with an arc-shaped gap. Distance A from the center of a circle of the arc-shaped gap to the center of the circle of the stator iron core is 16.5mm, and the radius R of the arc-shaped gap is 3.2mm. The pole-arc coefficient of magnetic steel is 0.758. The external arc and the internal arc of magnetic steel are not concentric. Eccentric distance B of the external arc and the internal arc is 5mm. Compared with stator-rotors in the prior art, the novel permanent magnet motor stator-rotor has advantages that tooth slot torque of a conventional permanent magnet motor stator-rotor is 0.1N.m, while the tooth slot torque of the novel permanent magnet motor stator-rotor of which ratio of slot number to pole number is an integer is 0.008N.m so that the tooth slot torque is reduced for more than 10 times. Therefore, lower tooth slot torque is acquired by the novel permanent magnet motor stator-rotor, and requirements of high-precision control occasions can be met.
Description
Technical field
The utility model relates to electric machine rotor, relates in particular to a kind of Novel permanent-magnet motor rotor.
Background technology
Due to the continuous lifting of permanent magnetic material performance, magneto is widely used in high-precision technical field.The selection coordinating as the design utmost point groove of magneto is vital to the performance of whole motor, different utmost point grooves are combined with different features, this cooperation that is integer with regard to slot-number ratio number of poles, the component of the radial electromagnetic force producing after the rotor that this utmost point groove coordinates interacts is very little, the operation of motor is more steady, but shortcoming is to have very large cogging torque, causes the fluctuation of torque, is applied to high-precision occasion and is just difficult to realize accurately location.
Summary of the invention
The utility model, in order to solve the above-mentioned deficiency of prior art, provides a kind of Novel permanent-magnet motor rotor.
Above-mentioned purpose of the present utility model realizes by following technical scheme: a kind of Novel permanent-magnet motor rotor, it comprises stator core, magnet steel and rotating shaft, and described magnet steel is arranged in rotating shaft, and the external diameter of stator core is 70mm, internal diameter is 37mm, and length is 50mm; Each increment of described stator core is equipped with a circular arc cutaway, and the distance A in the distance of center circle stator core center of circle of circular arc cutaway is 16.5mm, and the radius R of circular arc cutaway is 3.2mm; The pole embrace of described magnet steel is 0.758, the outer arc of magnet steel and inner arc decentraction, and the eccentric throw B of outer arc and inner arc is 5mm.
The utility model advantage is compared with prior art: the cogging torque of permanent magnet motor stator and rotor had 0.1 N of rice in the past, and the cogging torque of the permanent magnet motor stator and rotor that the utility model slot-number ratio number of poles is integer only has 0.008 N of rice, cogging torque has reduced more than 10 times; The utility model has obtained less cogging torque, can meet the requirement of high accuracy control occasion.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment stator core.
Fig. 3 is the structural representation of the utility model embodiment magnet steel.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, a kind of Novel permanent-magnet motor rotor, it comprises stator core 1, magnet steel 2 and rotating shaft 3, and described magnet steel 2 is arranged in rotating shaft 3, and the external diameter of stator core 1 is 70mm, and internal diameter is 37mm, length is 50mm; Each increment of described stator core 1 is equipped with a circular arc cutaway 4, and the distance A in distance of center circle stator core 1 center of circle of circular arc cutaway 4 is 16.5mm, and the radius R of circular arc cutaway 4 is 3.2mm; The pole embrace of described magnet steel 2 is 0.758, the outer arc of magnet steel 2 and inner arc decentraction, and the eccentric throw B of outer arc and inner arc is 5mm.
Described stator core 1 and the winding composition stationary part being embedded in its groove, rotating shaft 3 and magnet steel 2 form rotor portion.Have 0.1 N of rice with the cogging torque of front motor, the cogging torque of the permanent magnet motor stator and rotor that the utility model slot-number ratio number of poles is integer only has 0.008 N of rice, and cogging torque has reduced more than 10 times.
Above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised to scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; As long as any being equal to done according to spirit that this patent discloses changes or modify, all fall into the scope that this patent comprises.
Claims (1)
1. a Novel permanent-magnet motor rotor, is characterized in that: it comprises stator core, magnet steel and rotating shaft, and described magnet steel is arranged in rotating shaft, and the external diameter of stator core is 70mm, and internal diameter is 37mm, and length is 50mm; Each increment of described stator core is equipped with a circular arc cutaway, and the distance A in the distance of center circle stator core center of circle of circular arc cutaway is 16.5mm, and the radius R of circular arc cutaway is 3.2mm; The pole embrace of described magnet steel is 0.758, the outer arc of magnet steel and inner arc decentraction, and the eccentric throw B of outer arc and inner arc is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082764.5U CN203800788U (en) | 2014-02-26 | 2014-02-26 | Novel permanent magnet motor stator-rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082764.5U CN203800788U (en) | 2014-02-26 | 2014-02-26 | Novel permanent magnet motor stator-rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800788U true CN203800788U (en) | 2014-08-27 |
Family
ID=51382975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420082764.5U Expired - Fee Related CN203800788U (en) | 2014-02-26 | 2014-02-26 | Novel permanent magnet motor stator-rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800788U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743245A (en) * | 2016-04-08 | 2016-07-06 | 上海翡叶动力科技有限公司 | Low-speed direct-driven servo permanent-magnet motor stator/rotor |
| CN106253502A (en) * | 2016-08-19 | 2016-12-21 | 深圳市德立威汽车部件有限公司 | Direct current generator and electric tail gate driver |
| CN109361275A (en) * | 2018-11-23 | 2019-02-19 | 南京康尼电子科技有限公司 | A kind of high-performance permanent magnet motor reducing short-circuit torque |
-
2014
- 2014-02-26 CN CN201420082764.5U patent/CN203800788U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743245A (en) * | 2016-04-08 | 2016-07-06 | 上海翡叶动力科技有限公司 | Low-speed direct-driven servo permanent-magnet motor stator/rotor |
| CN106253502A (en) * | 2016-08-19 | 2016-12-21 | 深圳市德立威汽车部件有限公司 | Direct current generator and electric tail gate driver |
| CN109361275A (en) * | 2018-11-23 | 2019-02-19 | 南京康尼电子科技有限公司 | A kind of high-performance permanent magnet motor reducing short-circuit torque |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU FEIYE POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI FINE POWER TECHNOLOGY CO., LTD. Effective date: 20150721 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150721 Address after: 241000 Anhui city of Wuhu province Jiujiang Electronic Industrial Park building room 5005 Patentee after: Wuhu finepower Technology Co., Ltd. Address before: 201619, No. 6, building 111, cave Road, Dong Jing Town, Shanghai, Songjiang District Patentee before: SHANGHAI FINEPOWER TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200226 |