CN202260701U - AC permanent-magnet motor rotor structure - Google Patents
AC permanent-magnet motor rotor structure Download PDFInfo
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- CN202260701U CN202260701U CN2011203125405U CN201120312540U CN202260701U CN 202260701 U CN202260701 U CN 202260701U CN 2011203125405 U CN2011203125405 U CN 2011203125405U CN 201120312540 U CN201120312540 U CN 201120312540U CN 202260701 U CN202260701 U CN 202260701U
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- rotor
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- magnet
- grooves
- permanent
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Abstract
The utility model discloses an AC permanent-magnet motor rotor structure including steel magnets, a rotor shaft and a rotor punching sheet arranged on the rotor shaft. It is characterized in that salient poles and steel magnet grooves are arranged on peripheral face of the rotor punching sheet eccentrically. The steel magnet grooves and the salient poles are arranged correspondingly. The steel magnets are disposed in the steel magnet grooves. Pole dividing grooves are arranged between every two salient poles. In the utility model, a salient pole structure having uneven air gaps among rotors is adopted. Sizes of the pole dividing grooves are adjusted through an optimization design. The wave form of a magnetic field wave generated on an outer surface of a rotor is similar to a sine wave. The arrangement of the pole dividing groove can reduce the cogging pulse of a motor effectively. At the same time, a deferred magnetizing technique is adopted in the AC permanent-magnet motor rotor structure in the utility model. All the rotor steel magnets are disposed in the corresponding rotor grooves. The rotor steel magnets are magnetized before the rotor is used for assembling. Therefore, the waste of the steel magnets in a production circulating link is avoided, and the production cost is reduced effectively.
Description
Technical field
The utility model relates to a kind of AC magnetoelectric machine rotor punching structure, and it is applicable to occasions such as industrial sewing machines, air blast, vacuum pump, packaging facilities, Digit Control Machine Tool, textile machine.
Background technology
The at present surface-mount types that adopt of rotor magnetic steel structure more, magnet steel is a tile type, increases a stainless steel protection cover at the magnet steel outer surface simultaneously, comes off because of what centrifugal force caused in rotor rotation process to prevent magnet steel; The existing market rare earth material be in a high position; Increase down-stream enterprise's manufacturing cost, be unfavorable for the development and the expansion in the market of magneto, simultaneously; Surface-mount type tile magnet steel is the back subsides formula that magnetizes on the production technology; Magnet steel has unavoidably caused damage in production and transportation, increased the cost of this structure magnet steel.
Summary of the invention
The utility model technical problem to be solved is the deficiency to above-mentioned prior art; And a kind of simple and compact for structure and cost is low permanent magnet motor rotor structure is provided, it can solve present industrial sewing machines and has problems with the AC permanent-magnet motor.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of AC permanent-magnet motor rotor structure; Comprise magnet steel, armature spindle and be arranged on the rotor punching on the armature spindle; It is characterized in that: the periphery of described rotor punching is provided with eccentric salient pole and magnet steel groove, described magnet steel groove and the corresponding setting of described each salient pole, and described magnet steel is arranged in the magnet steel groove.
Between described salient pole, be provided with bowl classifier.
Described magnet steel is the cuboid magnet steel.
Compared with prior art, the beneficial effect of the utility model motor rotor construction is:
1, the stator of the utility model employing does not wait the salient-pole structure of air gap; Through optimal design, regulate the size of bowl classifier, similar at the field waveform of rotor appearance generation is sinusoidal wave, the setting of bowl classifier can effectively reduce the teeth groove pulsation of motor.
2, this rotor punching is adopted as the rectangular planes magnet steel and is embedded in the rotor punching; What the bossing of rotor punching adopted is eccentric structure; The rotor of this form can produce under the state of the effect the same with the surface-mount type permanent-magnet servo motor; Reduce use cost, the necessary stainless steel protection cover of the former surface-mount type rotor of minimizing of rare earth material, reduced production cost;
3 and the technology that magnetizes after this structure adopts all is placed on all rotor magnetic steels in the rotor separately exactly, before using this rotor assembling, rotor magnetic steel is magnetized, avoided producing scrapping of all swivel link magnet steel, effectively reduced production cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that rotor punching does not have magnetic pole bowl classifier motor teeth groove pulsation curves figure.
Fig. 3 is that rotor punching has magnetic pole bowl classifier motor teeth groove pulsation curves figure.
Wherein: 1, armature spindle, 2, rotor punching, 21, eccentric salient pole, 22, bowl classifier, 23, magnet steel groove, 3, magnet steel.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1, the utility model AC permanent magnetic servo motor rotor structure comprises armature spindle 1; Fixed rotor punching 2 on armature spindle 1 has the eccentric salient pole 21 of one processing on rotor punching 2, be processed with magnet steel groove 23 in the inboard correspondence of eccentric salient pole 21; Rotor magnetic steel 3 promptly is inserted in this magnet steel groove 23, and rotor magnetic steel 3 is the cuboid magnet steel, between eccentric salient pole 21, adopts bowl classifier 22 transition to connect; The setting of bowl classifier can effectively reduce the teeth groove pulsation of motor, referring to Fig. 2 and Fig. 3.
A kind of AC permanent-magnet motor rotor structure of the utility model; When it has the advantage of similar surface-mount type tile magnet steel, can reduce the use cost of rare earth material again, and can make the rotor technology of AC permanent-magnet motor more economical reliable.
Claims (3)
1. AC permanent-magnet motor rotor structure; Comprise magnet steel, armature spindle and be arranged on the rotor punching on the armature spindle; It is characterized in that: the periphery of described rotor punching is provided with eccentric salient pole and magnet steel groove; Described magnet steel groove and the corresponding setting of described each salient pole, described magnet steel is arranged in the magnet steel groove.
2. AC permanent-magnet motor rotor structure according to claim 1 is characterized in that: between described salient pole, be provided with bowl classifier.
3. AC permanent-magnet motor rotor structure according to claim 1 and 2 is characterized in that: described magnet steel is the cuboid magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203125405U CN202260701U (en) | 2011-08-25 | 2011-08-25 | AC permanent-magnet motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203125405U CN202260701U (en) | 2011-08-25 | 2011-08-25 | AC permanent-magnet motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260701U true CN202260701U (en) | 2012-05-30 |
Family
ID=46121884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203125405U Expired - Fee Related CN202260701U (en) | 2011-08-25 | 2011-08-25 | AC permanent-magnet motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315705A (en) * | 2011-08-25 | 2012-01-11 | 江苏上骐集团有限公司 | Rotor structure of alternating current permanent magnet motor |
| CN105226860A (en) * | 2015-10-23 | 2016-01-06 | 苏州爱知科技有限公司 | A kind of motor rotor core structure |
| CN107508395A (en) * | 2016-06-14 | 2017-12-22 | 中电电机股份有限公司 | Permanent magnet machine rotor |
-
2011
- 2011-08-25 CN CN2011203125405U patent/CN202260701U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315705A (en) * | 2011-08-25 | 2012-01-11 | 江苏上骐集团有限公司 | Rotor structure of alternating current permanent magnet motor |
| CN105226860A (en) * | 2015-10-23 | 2016-01-06 | 苏州爱知科技有限公司 | A kind of motor rotor core structure |
| CN107508395A (en) * | 2016-06-14 | 2017-12-22 | 中电电机股份有限公司 | Permanent magnet machine rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20200825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |