CN102214962A - Novel rotor lamination structure - Google Patents
Novel rotor lamination structure Download PDFInfo
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- CN102214962A CN102214962A CN2010101373631A CN201010137363A CN102214962A CN 102214962 A CN102214962 A CN 102214962A CN 2010101373631 A CN2010101373631 A CN 2010101373631A CN 201010137363 A CN201010137363 A CN 201010137363A CN 102214962 A CN102214962 A CN 102214962A
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- rotor
- magnet steel
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- uniform
- rotor punching
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a novel rotor lamination structure which has the advantages of a surface type rotor magnetic path structure and a built-in type rotor magnetic path structure. The outer surface of the rotor lamination structure has eight uniformly distributed cambered surface structures; corresponding positions on the middle parts of magnetic steel slots are the highest points of cambered surfaces; and eight bulges are uniformly distributed at positions corresponding to gaps in the middle of every two adjacent magnetic steel slots. The novel rotor lamination structure can easily produce a back electromotive force with sine waveform, has high mechanical strength and a larger saliency ratio and is convenient for flux weakening speed expansion.
Description
Technical field
The invention belongs to the permagnetic synchronous motor field, relate to a kind of punching structure of novel rotor.
Background technology
Permanent-magnetic synchronous motor rotor magnetic structure now commonly used generally is divided into surface-type and built-in.For the surface-type rotor magnetic circuit structural, permanent magnet is tile shape usually, and is positioned on the outer surface of rotor core, and the direction that permanent magnet provides magnetic flux is for radially.Though being easy to produce, this rotor magnetic circuit structural has sine-shaped back electromotive force; be convenient to the research and development design of speed governing permagnetic synchronous motor controller; but when high-speed cruising; centrifugal force is very big; need put the non magnetic sleeve that shields at rotor outer surface; so greatly increase the eddy current loss of rotor, improved the temperature rise of motor, reduced efficiency of motor.The surface-type rotor structure, its d-axis inductance and friendship axle inductance difference are very little, almost do not have reluctance torque, are unfavorable for weak magnetism speed expansion.For the built-in rotor magnetic structure, the mechanical strength of rotor is very high, and eddy current loss is little, is more suitable for running up.It hands over the axle inductance bigger than d-axis inductance, has bigger salient pole ratio, is convenient to weak magnetism speed expansion.But existing built-in structure, its back emf waveform is generally square wave or trapezoidal wave, and very difficult generation has sine-shaped back electromotive force, has just strengthened the research and development design difficulty of electric machine controller virtually.
Summary of the invention
The present invention has overcome deficiency of the prior art, novel rotor punching structure of the present invention, advantage in conjunction with existing surface-type rotor magnetic circuit structural and built-in rotor magnetic structure, both be easy to produce and had sine-shaped back electromotive force, has higher mechanical strength again, and have bigger salient pole ratio, be convenient to weak magnetism speed expansion.
The present invention solves the technical scheme that its technical problem takes: when the design rotor, the present invention is in conjunction with the advantage of existing surface-type rotor magnetic circuit structural and built-in rotor magnetic structure, its outer surface is eight sections uniform arcwall face structures, in corresponding position, magnet steel groove middle part, be the peak of arcwall face; In the pairing position of adjacent two magnet steel groove intermediate space, uniform eight projectioies.This novel rotor punching structure both had been easy to generation and had had sine-shaped back electromotive force, had higher mechanical strength again, and had bigger salient pole ratio, was convenient to weak magnetism speed expansion.
The present invention compared with prior art, the performance of its beneficial effect is as follows:
Novel rotor punching structure of the present invention both had been easy to generation and had had sine-shaped back electromotive force, had higher mechanical strength again, and had bigger salient pole ratio, was convenient to weak magnetism speed expansion.Compare surface-type rotor magnetic circuit structural commonly used now, be easy to realize big torque and high rotating speed, have higher mechanical strength and the efficient of Geng Gao.And compare built-in rotor magnetic structure commonly used now, be easier to generation and have sine-shaped back electromotive force; Simultaneously, can keep the bigger characteristics of reluctance torque.
Description of drawings
Fig. 1 is that rotor punching of the present invention cooperates figure with magnet steel;
Fig. 2 is a rotor punching structure of the present invention;
Fig. 3 is back emf waveform figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As Fig. 1, when the design rotor, magnet steel is embedded in the magnet steel groove of rotor core, and the triangular groove slit is left at the two ends of magnet steel groove.
As Fig. 2, its outer surface is eight sections uniform arcwall face structures, in corresponding position, magnet steel groove middle part, is the peak of arcwall face; In the pairing position of adjacent two magnet steel groove intermediate space, uniform eight projectioies.This structure both can guarantee that rotor had enough mechanical strengths under the situation of higher rotation speed, also was easy to produce have sine-shaped back electromotive force.In addition, at the mid portion of rotor punching, uniform eight location holes; In punching, on the circle, a pair of mark groove is arranged.
Utilize technical solutions according to the invention, or those skilled in the art designing the similar techniques scheme under the inspiration of technical solution of the present invention, and reach above-mentioned technique effect, all is to fall into protection scope of the present invention.
Claims (5)
1. novel rotor punching structure, it is characterized in that: magnet steel is embedded in the magnet steel groove of rotor core, and the triangular groove slit is left at the two ends of magnet steel groove.Rotor punching structure of the present invention, its outer surface are eight sections uniform arcwall face structures, in corresponding position, magnet steel groove middle part, are the peak of arcwall face; In the pairing position of adjacent two magnet steel groove intermediate space, uniform eight projectioies.This structure both can guarantee that rotor had enough mechanical strengths under the situation of higher rotation speed, also was easy to produce have sine-shaped back electromotive force.
2. a kind of novel rotor punching structure according to claim 1 is characterized in that: described rotor-core lamination structure is that outer surface is eight sections uniform arcwall face structures, in corresponding position, magnet steel groove middle part, is the peak of arcwall face.
3. a kind of novel rotor punching structure according to claim 1 is characterized in that: described rotor-core lamination structure, and in the pairing position of adjacent two magnet steel groove intermediate space, uniform eight projectioies.
4. a kind of novel rotor punching structure according to claim 3 is characterized in that: at the mid portion of rotor punching, and uniform eight location holes.
5. a kind of novel rotor punching structure according to claim 1 is characterized in that: on the circle, a pair of mark groove is arranged in punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101373631A CN102214962A (en) | 2010-04-01 | 2010-04-01 | Novel rotor lamination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101373631A CN102214962A (en) | 2010-04-01 | 2010-04-01 | Novel rotor lamination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102214962A true CN102214962A (en) | 2011-10-12 |
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ID=44746129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101373631A Pending CN102214962A (en) | 2010-04-01 | 2010-04-01 | Novel rotor lamination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102214962A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738953A (en) * | 2012-06-29 | 2012-10-17 | 卧龙电气集团股份有限公司 | Bearing-free servo motor used for industrial sewing machine |
| CN102738932A (en) * | 2012-06-28 | 2012-10-17 | 奇瑞汽车股份有限公司 | Novel permanent magnet generator rotor for range extender of electric vehicle |
| CN103208872A (en) * | 2012-01-16 | 2013-07-17 | 三星电子株式会社 | Rotor and motor including the same |
| CN103887937A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Production method of built-in permanent magnet rotor of electric vehicle hub driving motor |
| CN104411976A (en) * | 2012-06-19 | 2015-03-11 | 三菱电机株式会社 | Pump, method for manufacturing pump, and refrigeration cycle device |
| CN105356635A (en) * | 2015-11-02 | 2016-02-24 | 常州大学 | Rotor silicon steel sheet pile structure with low eddy current loss and device for closely fitting structure and shaft |
| CN112910128A (en) * | 2021-01-13 | 2021-06-04 | 瑞安市联鑫机电有限公司 | Motor rotor, motor with motor rotor and manufacturing method of motor rotor |
| CN112953061A (en) * | 2021-03-16 | 2021-06-11 | 山东理工大学 | Dual-radial combined magnetic pole permanent magnet driving motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166755A (en) * | 1986-01-16 | 1987-07-23 | Sanyo Electric Co Ltd | Rotor with permanent magnet |
| CN1392654A (en) * | 2001-06-14 | 2003-01-22 | Lg电子株式会社 | Single phase directly start permanent magnetic synchronous moter |
| CN2662525Y (en) * | 2003-11-28 | 2004-12-08 | 北京明正维元电机技术有限公司 | AC permanent-magnet synchronous servo motor |
| CN101465587A (en) * | 2009-01-22 | 2009-06-24 | 南京埃斯顿自动控制技术有限公司 | Inner-buried type enclose permanent magnet synchronous motor |
-
2010
- 2010-04-01 CN CN2010101373631A patent/CN102214962A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166755A (en) * | 1986-01-16 | 1987-07-23 | Sanyo Electric Co Ltd | Rotor with permanent magnet |
| CN1392654A (en) * | 2001-06-14 | 2003-01-22 | Lg电子株式会社 | Single phase directly start permanent magnetic synchronous moter |
| CN2662525Y (en) * | 2003-11-28 | 2004-12-08 | 北京明正维元电机技术有限公司 | AC permanent-magnet synchronous servo motor |
| CN101465587A (en) * | 2009-01-22 | 2009-06-24 | 南京埃斯顿自动控制技术有限公司 | Inner-buried type enclose permanent magnet synchronous motor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208872A (en) * | 2012-01-16 | 2013-07-17 | 三星电子株式会社 | Rotor and motor including the same |
| US9831729B2 (en) | 2012-01-16 | 2017-11-28 | Samsung Electronics Co., Ltd. | Electric motor's sectional rotor with asymmetric poles having permanent magnets |
| CN104411976A (en) * | 2012-06-19 | 2015-03-11 | 三菱电机株式会社 | Pump, method for manufacturing pump, and refrigeration cycle device |
| CN102738932A (en) * | 2012-06-28 | 2012-10-17 | 奇瑞汽车股份有限公司 | Novel permanent magnet generator rotor for range extender of electric vehicle |
| CN102738953A (en) * | 2012-06-29 | 2012-10-17 | 卧龙电气集团股份有限公司 | Bearing-free servo motor used for industrial sewing machine |
| CN103887937A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Production method of built-in permanent magnet rotor of electric vehicle hub driving motor |
| CN105356635A (en) * | 2015-11-02 | 2016-02-24 | 常州大学 | Rotor silicon steel sheet pile structure with low eddy current loss and device for closely fitting structure and shaft |
| CN112910128A (en) * | 2021-01-13 | 2021-06-04 | 瑞安市联鑫机电有限公司 | Motor rotor, motor with motor rotor and manufacturing method of motor rotor |
| CN112953061A (en) * | 2021-03-16 | 2021-06-11 | 山东理工大学 | Dual-radial combined magnetic pole permanent magnet driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECHNOLOGY CO Free format text: FORMER OWNER: TIANJIN SANTROLL ELECTRIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20120514 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120514 Address after: 300308 No., West ten road, airport logistics processing zone, Shanghai Applicant after: Tianjin Santroll Electric Automobile Technology Co., Ltd. Address before: 300308 No., West ten road, airport logistics processing zone, Shanghai Applicant before: Tianjin Santroll Electric Science & Technology Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111012 |