CN103124126B - Reduce the shaftless system outer rotor permanent magnet motor of slot effect - Google Patents
Reduce the shaftless system outer rotor permanent magnet motor of slot effect Download PDFInfo
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- CN103124126B CN103124126B CN201310093115.5A CN201310093115A CN103124126B CN 103124126 B CN103124126 B CN 103124126B CN 201310093115 A CN201310093115 A CN 201310093115A CN 103124126 B CN103124126 B CN 103124126B
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Abstract
Reduce the shaftless system outer rotor permanent magnet motor of slot effect, belong to machine field, the present invention solves the existing slot effect with the permagnetic synchronous motor existence of tooth slot structure, and then the problem causing motor performance to reduce.The shaftless system outer rotor permanent magnet motor of reduction slot effect of the present invention comprises stator cage, stators and rotators, the internal circular surfaces of the stator that stator cage is arranged, and stator is arranged on internal rotor, there is even air gap between stators and rotators; Stator comprises stator yoke, stator slot, stator winding and slot wedge, the circumferential direction inside direction of annular stator yoke evenly arranges multiple stator slot, stator slot is embedded in stator winding, arranges slot wedge between the notch of stator slot and stator cage, and slot wedge is used for fixed stator winding; Rotor comprises rotor yoke and multiple rotor magnetic pole, and the internal circular surfaces of rotor yoke evenly arranges multiple rotor magnetic pole.
Description
Technical field
The present invention relates to the shaftless system outer rotor permanent magnet motor reducing slot effect, belong to machine field.
Background technology
What existing permanent magnet synchronous motor adopted is the structure with teeth groove, existence due to motor teeth groove makes the non-uniform air-gap between motor stator and rotor, thus causing the distortion of air-gap field, slot effect that Here it is, slot effect can cause motor performance to reduce.
Summary of the invention
The present invention seeks to the slot effect existed to solve the existing permagnetic synchronous motor with tooth slot structure, and then the problem causing motor performance to reduce, provide a kind of shaftless system outer rotor permanent magnet motor reducing slot effect.
The shaftless system outer rotor permanent magnet motor of reduction slot effect of the present invention, it comprises stator cage, stators and rotators, the internal circular surfaces of the stator that stator cage is arranged, and stator is arranged on internal rotor, there is even air gap between stators and rotators;
Stator comprises stator yoke, stator slot, stator winding and slot wedge, the circumferential direction inside direction of annular stator yoke evenly arranges multiple stator slot, stator slot is embedded in stator winding, arranges slot wedge between the notch of stator slot and stator cage, and slot wedge is used for fixed stator winding;
Rotor comprises rotor yoke and multiple rotor magnetic pole, and the internal circular surfaces of rotor yoke evenly arranges multiple rotor magnetic pole.
Advantage of the present invention: by the stator rabbet of permagnetic synchronous motor and the exchange of bottom land position, make the air gap place slotless between the stator of motor and rotor, thus effectively reduce motor slot effect, the impact of experimental verification slot effect can reduce 25-30%.Production cost is without remarkable increase.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shaftless system outer rotor permanent magnet motor of reduction slot effect of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, the shaftless system outer rotor permanent magnet motor of slot effect is reduced described in present embodiment, it comprises stator cage 1, stators and rotators, the internal circular surfaces of the stator that stator cage 1 is arranged, stator is arranged on internal rotor, there is even air gap between stators and rotators;
Stator comprises stator yoke 2, stator slot, stator winding 3 and slot wedge 4, the circumferential direction inside direction of annular stator yoke 2 evenly arranges multiple stator slot, stator slot is embedded in stator winding 3, and arrange slot wedge 4 between the notch of stator slot and stator cage 1, slot wedge 4 is for fixed stator winding 3;
Rotor comprises rotor yoke 5 and multiple rotor magnetic pole 6, and the internal circular surfaces of rotor yoke 5 evenly arranges multiple rotor magnetic pole 6.
N pole, the S of multiple rotor magnetic pole 6 are extremely staggered, and often seamless setting between adjacent two rotor magnetic poles 6.
The notch of stator slot is towards stator cage 1, and compared with traditional motor, notch and the bottom land position of stator slot are exchanged, and make the air gap place slotless between the stator of motor and rotor, then air gap is therebetween even, thus effectively reduces motor slot effect.For the feature of shaftless system permanent magnet synchronous motor, adopt special process and sectional fixture can complete the assembling of motor.
Claims (2)
1. reduce the shaftless system outer rotor permanent magnet motor of slot effect, it is characterized in that, it comprises stator cage (1), stators and rotators, stator cage (1) is arranged on the internal circular surfaces of stator, stator is arranged on internal rotor, there is even air gap between stators and rotators;
Stator comprises stator yoke (2), stator slot, stator winding (3) and slot wedge (4), the circumferential direction inside direction of annular stator yoke (2) evenly arranges multiple stator slot, multiple stator slot is provided with the notch communicated with the inner peripheral surface of annular stator yoke (2), stator slot is embedded in stator winding (3), arrange slot wedge (4) between the notch of stator slot and stator cage (1), slot wedge (4) is for fixed stator winding (3);
Rotor comprises rotor yoke (5) and multiple rotor magnetic pole (6), and the internal circular surfaces of rotor yoke (5) evenly arranges multiple rotor magnetic pole (6).
2. reduce the shaftless system outer rotor permanent magnet motor of slot effect according to claim 1, it is characterized in that, N pole, the S of multiple rotor magnetic pole (6) are extremely staggered, and often seamless setting between adjacent two rotor magnetic poles (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310093115.5A CN103124126B (en) | 2013-03-22 | 2013-03-22 | Reduce the shaftless system outer rotor permanent magnet motor of slot effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310093115.5A CN103124126B (en) | 2013-03-22 | 2013-03-22 | Reduce the shaftless system outer rotor permanent magnet motor of slot effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103124126A CN103124126A (en) | 2013-05-29 |
| CN103124126B true CN103124126B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310093115.5A Active CN103124126B (en) | 2013-03-22 | 2013-03-22 | Reduce the shaftless system outer rotor permanent magnet motor of slot effect |
Country Status (1)
| Country | Link |
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| CN (1) | CN103124126B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683782A (en) * | 2014-01-07 | 2014-03-26 | 郭进先 | Shaftless hub motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855675A (en) * | 2005-04-28 | 2006-11-01 | 三菱电机株式会社 | Permanent-magnet synchronous electric motor and method for manufacturing same |
| EP1848096A2 (en) * | 2006-04-18 | 2007-10-24 | Converteam Ltd | Electrical machines with reduced cogging |
| CN101459353A (en) * | 2008-11-25 | 2009-06-17 | 中国船舶重工集团公司第七○七研究所 | Stator iron core construction for outer rotor permanent magnet motor and stator winding contra-wound method |
| CN102055251A (en) * | 2009-11-06 | 2011-05-11 | 天津市松正电动科技有限公司 | Permanent-magnet motor capable of effectively eliminating slot effect |
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2013
- 2013-03-22 CN CN201310093115.5A patent/CN103124126B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1855675A (en) * | 2005-04-28 | 2006-11-01 | 三菱电机株式会社 | Permanent-magnet synchronous electric motor and method for manufacturing same |
| EP1848096A2 (en) * | 2006-04-18 | 2007-10-24 | Converteam Ltd | Electrical machines with reduced cogging |
| CN101459353A (en) * | 2008-11-25 | 2009-06-17 | 中国船舶重工集团公司第七○七研究所 | Stator iron core construction for outer rotor permanent magnet motor and stator winding contra-wound method |
| CN102055251A (en) * | 2009-11-06 | 2011-05-11 | 天津市松正电动科技有限公司 | Permanent-magnet motor capable of effectively eliminating slot effect |
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| CN103124126A (en) | 2013-05-29 |
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Effective date of registration: 20170703 Address after: Building 2 No. 161000 of Qigihar city of Heilongjiang Province, Longsha district north of Hecheng Huagong Machine Tool Manufacturing Co Ltd Patentee after: HEILONGJIANG GONGDA HUAGONG MOTOR TECHNOLOGY CO., LTD. Address before: 150000 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: Harbin Institute of Technology |