CN101662198A - Stator surface mounted doubly salient pole permanent magnet motor - Google Patents
Stator surface mounted doubly salient pole permanent magnet motor Download PDFInfo
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- CN101662198A CN101662198A CN200910184159A CN200910184159A CN101662198A CN 101662198 A CN101662198 A CN 101662198A CN 200910184159 A CN200910184159 A CN 200910184159A CN 200910184159 A CN200910184159 A CN 200910184159A CN 101662198 A CN101662198 A CN 101662198A
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- stator
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- permanent magnet
- salient pole
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- 238000004804 winding Methods 0.000 claims abstract description 47
- 239000012141 concentrate Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 5
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
定子表面贴装式双凸极永磁电机是一种结构简单、坚固，具有较强转矩输出能力和较高功率密度的电机，包括定子(1)和转子(4)，其特征在于转子(4)位于定子(1)的内部，定子(1)和转子(4)都为双凸极结构，在定子(1)上设置有集中绕组(3)和永磁体(2)；其中，集中绕组(3)的任何一相的每个集中绕组线圈均位于定子(1)铁心槽中，且每相集中绕组线圈为串联或并联连接；永磁体(2)位于定子(1)齿的顶部。该电机具有高度近似方波(直槽转子)或者正弦波(斜槽转子)的空载反电动势、较强的转矩输出能力和较大的功率密度，同时具备较强的抗去磁能力，特别适合于作为交流调速系统的驱动元件。
The stator surface-mounted doubly salient pole permanent magnet motor is a motor with simple structure and strong, strong torque output capability and high power density, including a stator (1) and a rotor (4), which is characterized in that the rotor ( 4) Located inside the stator (1), both the stator (1) and the rotor (4) have a double-salient structure, and the stator (1) is provided with concentrated windings (3) and permanent magnets (2); among them, the concentrated windings Each concentrated winding coil of any phase of (3) is located in the stator (1) core slot, and the concentrated winding coils of each phase are connected in series or in parallel; the permanent magnet (2) is located on the top of the stator (1) teeth. The motor has a highly approximate square wave (straight slot rotor) or sine wave (skew rotor) no-load back electromotive force, strong torque output capability and high power density, and has strong anti-demagnetization ability. It is especially suitable as the drive element of the AC speed control system.
Description
Technical field
The present invention is a kind of simple in structure, firm, has the motor of strong torque fan-out capability and higher power density, relates to the technical field that motor is made.
Background technology
China's conduct is the country of rare earth material reserves maximum in the world, and the research and extension application is the various novel permanent magnetic motors of representative with the rare-earth permanent-magnet electric machine energetically, has important significance for theories and using value.No matter work generates electricity or electric operation, and the novel permanent magnetic motor with characteristics such as high efficiency, big torque (power) density and low-losses is just presenting the trend of accelerated development.Past study during the last ten years focus concentrate on always with surface-adhered type, plug-in type and embedded be the rotor permanent magnet-type motor of representative.Yet, the motor type that permanent magnet is positioned over rotor all can produce into a series of problems in the design and running process, concentrated reflection is following 5 points: 1. pair permanent magnet sticks on the structure between rotor surface or the insertion rotor with salient pole, in order to overcome the centrifugal forces affect that high-speed cruising produces, usually need to make auxiliary permanent magnet fixture, increased technology; And permanent magnet is between stator and the rotor, has strengthened gas length, has both increased motor volume, has weakened air gap flux density, forced partial outage again; 2. to the embedded structure of permanent magnet submerged rotor core inside, can influence the mechanical strength of rotor, and need auxiliary magnetic bridge, can increase manufacture craft and cost equally; 3. permanent magnet places rotor, is unfavorable for the cooling of the type motor, often needs to carry out the design of special wind path or other type of cooling in order to dispel the heat; 4. the magnet steel that extensively adopts at present all is the lower neodymium iron boron of Curie temperature, influenced by temperature rise and causes magneto to have certain demagnetization even complete loss of excitation risk; 5. if expectation utilizes the stator armature winding that rotor magnetic steel is magnetized or degaussing, for the structure of rotor permanent-magnet type, stator armature winding magnetic potential need be passed through air-gap reluctance, and the cost increase that causes magnetizing is even unfeasible.
Therefore, work out the new structure magneto that can overcome above-mentioned shortcoming and just become the duty-bound mission critical of machine operation person, and the scheme that has occurred in the world at present has the motor of three kinds of stator permanent magnetic type structures, promptly unipolar doubly salient permanent magnet motor, ambipolar flux switch permanent magnet motor and ambipolar flux-reversal magneto.Wherein, the structural principle of magnetic flux reverse motor is that two opposite polarity permanent magnets are installed on each salient pole stator tooth side by side, its objective is in order to obtain ambipolar permanent magnetism magnetic linkage, but this structure directly causes two blocks of magnet steel and stator tooth to form short circuit, leakage field is serious, has reduced the utilance of unit magnet steel.Purpose of the present invention is exactly the shortcoming at the type flow direction magneto, has proposed a kind of stator surface mounted doubly salient pole permanent magnet motor of new structure.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of stator surface mounted doubly salient pole permanent magnet motor, make this electric machine structure simple, firm, have the unloaded back electromotive force of highly approximate square wave (straight trough rotor) or sinusoidal wave (skewed rotor), stronger torque fan-out capability and bigger power density, possess stronger anti-degaussing ability simultaneously, be particularly suitable for driving element as Alternating Current Governor System.
Technical scheme: for solving the problems of the technologies described above, the stator surface mounted doubly salient pole permanent magnet motor of invention comprises stator and rotor, rotor is positioned at the inside of stator, it is characterized in that stator and rotor all are the biconvex electrode structure, and stator is provided with concentrates winding and permanent magnet; Wherein, concentrate each concentrated winding coil of any phase of winding all to be arranged in stator coring groove, and every winding coil of concentrating mutually is that serial or parallel connection connects; Permanent magnet is positioned at the top of stator tooth.Permanent magnet surfaces is mounted on the outer surface of stator tooth towards air gap, and adjacent magnet steel magnetic is opposite.Rotor is straight trough or skewed rotor.Permanent magnet is ferrite or neodymium iron boron type permanent magnetic steel.
Rotor also can be positioned at the outside of stator, becomes outer-rotor structure.
Beneficial effect: because motor of the present invention concentrates winding and permanent magnet all to be located on the stator at armature, rotor only is a magnetic conductive iron, so structure of the present invention is very simple and firm, is particularly suitable for high-speed cruising, and helps improving the cooling condition of this motor;
Owing to adopted concentrated winding mode, can reduce tip lengths, reduce resistance and copper loss as much as possible, also guaranteed the compact conformation of motor, power density is bigger, and efficient is higher;
Because stator armature winding and permanent magnet all place stator, the armature winding magnetic potential magnetizes to permanent magnet or degaussing all is easy to carry out;
Because rotor structure is simple rigid very, the mode that can adopt skewed slot or commentaries on classics to open virtual groove from tooth surface is as required easily improved potential waveform and is reduced cogging torque (location torque), make that the torque pulsation of the type motor is less, be particularly suitable for elaborate servo control field and other formula application scenarios that directly becomes.
In a preferred embodiment of the invention, because rotor is the straight trough rotor, so, guaranteed that the present invention concentrates winding and rotor not under the condition of skewed slot adopting, just can obtain the trapezoidal wave magnetic linkage, highly near the static characteristics such as back electromotive force of square wave, can substitute the common brshless DC motor of present extensive use fully, thereby make the present invention be more suitable for driving element as Alternating Current Governor System.
To sum up, characteristics on this electric machine structure cause it to have that air gap flux density is big, the torque fan-out capability is strong, power density is higher, location torque is less, torque pulsation is low, resistance is less, advantages such as efficient is higher, production process is simple, rotor strong robustness.
Description of drawings
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a stator surface mounted doubly salient pole permanent magnet motor composition diagram that adopts stator 6 grooves/rotor 4 utmost points of the technology of the present invention design;
Wherein have: stator 1, permanent magnet 2 is concentrated winding 3, rotor 4, A is first winding coil 311 mutually, and A is second winding coil 312 mutually; B is first winding coil 321, B phase second winding coil 322 mutually; C is first winding coil 331, C phase second winding coil 332 mutually.
Embodiment
Stator surface mounted doubly salient pole permanent magnet motor of the present invention comprises stator and two parts of rotor, can take internal rotor or two kinds of forms of external rotor according to different application scenarios, and stator and rotor all are the biconvex electrode structure, number of stator slots N
sWith rotor with salient pole number of poles P
rMultiple cooperation is arranged, and number of motor phases m can be single-phase, two-phase, three-phase and heterogeneous; Stator is provided with concentrates winding and permanent magnet; Wherein, the concentrated winding of any phase is by (N
s/ m) individual coil is formed, and the m phase coil is adjacent successively to be enclosed within on the stator tooth.Be two layer winding in each stator slot, promptly be placed with the coil turn limit that belongs to different two-phases; (the N that belongs to homophase
s/ m) individual winding coil can be connected/parallel connection/connection in series-parallel connection as required; Each stator tooth posts a permanent magnet towards the outer surface of air gap, and permanent magnet material can be ferrite or neodymium iron boron, and the permanent magnet magnetizing direction is radial magnetizing, N
sN under the individual stator tooth
sThe piece permanent magnet magnetic is alternately opposite.Because this similar in rotor surface mounted type motor, is therefore named it and is " stator surface mounted doubly "; The rotor portion structure is very simple, has not both had permanent magnet and has not also had winding, for folded forming pressed in simple magnetic conductive iron punching.Can be made as straight trough rotor (square wave electromotive force) or skewed rotor (sinusoidal wave electromotive force) according to the electromotive force needs.
Shown in Figure 1, the stator surface mounted doubly salient pole permanent magnet motor of stator 6 grooves of the present invention/rotor 4 utmost points comprises stator core 1 and rotor core 4, rotor 4 is positioned at the inside or the outside of stator 1, stator 1 and rotor 4 all are the biconvex electrode structure, and stator 1 is provided with winding 3 and 6 permanent magnets 2 in the three-phase set.
Claims (5)
1, a kind of stator surface mounted doubly salient pole permanent magnet motor, comprise stator (1) and rotor (4), it is characterized in that rotor (4) is positioned at the inside of stator (1), stator (1) and rotor (4) all are the biconvex electrode structure, and stator (1) is provided with concentrated winding (3) and permanent magnet (2); Wherein, concentrate each concentrated winding coil of any phase of winding (3) all to be arranged in stator (1) core slots, and every winding coil of concentrating mutually is that serial or parallel connection connects; Permanent magnet (2) is positioned at the top of stator (1) tooth.
2, stator surface mounted doubly salient pole permanent magnet motor as claimed in claim 1 is characterized in that, permanent magnet (2) surface mount is at the outer surface of stator (1) flank of tooth to air gap, and adjacent magnet steel magnetic is opposite.
3, stator surface mounted doubly salient pole permanent magnet motor as claimed in claim 1 is characterized in that, rotor (4) is straight trough or skewed rotor.
4, stator surface mounted doubly salient pole permanent magnet motor as claimed in claim 1 is characterized in that, permanent magnet (2) is ferrite or neodymium iron boron type permanent magnetic steel.
5, stator surface mounted doubly salient pole permanent magnet motor as claimed in claim 1 is characterized in that rotor (4) is positioned at the outside of stator (1), becomes outer-rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184159A CN101662198A (en) | 2009-08-19 | 2009-08-19 | Stator surface mounted doubly salient pole permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910184159A CN101662198A (en) | 2009-08-19 | 2009-08-19 | Stator surface mounted doubly salient pole permanent magnet motor |
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| Publication Number | Publication Date |
|---|---|
| CN101662198A true CN101662198A (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910184159A Pending CN101662198A (en) | 2009-08-19 | 2009-08-19 | Stator surface mounted doubly salient pole permanent magnet motor |
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| CN (1) | CN101662198A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403857A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Surface-mounted doubly salient pole permanent magnet motor with complementary windings and magnetic circuits |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
| CN103296798A (en) * | 2013-05-15 | 2013-09-11 | 东南大学 | Stator surface-mounted type doubly salient permanent magnet motor with double-speed windings |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN104283394A (en) * | 2014-10-20 | 2015-01-14 | 上海电机学院 | A surface-mounted brushless DC motor rotor that suppresses demagnetization of permanent magnets |
| CN104319918A (en) * | 2014-10-28 | 2015-01-28 | 江苏交科能源科技发展有限公司 | Magnetic flux switching type stator permanent magnet double-salient-pole motor with V-shaped or U-shaped permanent magnets |
| CN104578491A (en) * | 2014-12-31 | 2015-04-29 | 南京航空航天大学 | Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor |
| CN104883016A (en) * | 2015-05-08 | 2015-09-02 | 江苏大学 | Double-stator magnetic field modulation permanent magnet motor |
| CN104319918B (en) * | 2014-10-28 | 2017-01-04 | 江苏交科能源科技发展有限公司 | A kind of stator permanent magnet V-arrangement or U-shaped permanent magnet Magneticflux-switching type double salient-pole electric machine |
| CN106849582A (en) * | 2017-03-20 | 2017-06-13 | 山东理工大学 | A kind of body-sensing car permanent magnetism wheel hub motor |
| CN107346930A (en) * | 2016-05-06 | 2017-11-14 | 南京理工大学 | High torque density permanent magnetic electric rotating machine |
| CN109361276A (en) * | 2018-11-05 | 2019-02-19 | 赣州诚正电机有限公司 | A kind of brushless rimless rare-earth permanent-magnet electric machine |
| CN111224478A (en) * | 2020-02-17 | 2020-06-02 | 南京航空航天大学 | A permanent magnet pole-cutting magnetic flux reverse motor |
| CN113178962A (en) * | 2021-05-20 | 2021-07-27 | 河北工业大学 | Modularized rotor hybrid excitation magnetic flux reverse motor |
| CN113193670A (en) * | 2021-05-20 | 2021-07-30 | 河北工业大学 | Modularized flux reversal motor |
-
2009
- 2009-08-19 CN CN200910184159A patent/CN101662198A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403857A (en) * | 2011-11-17 | 2012-04-04 | 东南大学 | Surface-mounted doubly salient pole permanent magnet motor with complementary windings and magnetic circuits |
| CN103248189A (en) * | 2013-05-03 | 2013-08-14 | 东南大学 | Bipolar stator-surface-mounting type permanent magnet motor |
| CN103296798B (en) * | 2013-05-15 | 2016-01-20 | 东南大学 | A kind of double speed wound stator surface-adhered type doubly salient permanent magnet motor |
| CN103296798A (en) * | 2013-05-15 | 2013-09-11 | 东南大学 | Stator surface-mounted type doubly salient permanent magnet motor with double-speed windings |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN104283394A (en) * | 2014-10-20 | 2015-01-14 | 上海电机学院 | A surface-mounted brushless DC motor rotor that suppresses demagnetization of permanent magnets |
| CN104319918B (en) * | 2014-10-28 | 2017-01-04 | 江苏交科能源科技发展有限公司 | A kind of stator permanent magnet V-arrangement or U-shaped permanent magnet Magneticflux-switching type double salient-pole electric machine |
| CN104319918A (en) * | 2014-10-28 | 2015-01-28 | 江苏交科能源科技发展有限公司 | Magnetic flux switching type stator permanent magnet double-salient-pole motor with V-shaped or U-shaped permanent magnets |
| CN104578491A (en) * | 2014-12-31 | 2015-04-29 | 南京航空航天大学 | Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor |
| CN104883016B (en) * | 2015-05-08 | 2018-02-27 | 江苏大学 | A kind of bimorph transducer magnetic field modulation type magneto |
| CN104883016A (en) * | 2015-05-08 | 2015-09-02 | 江苏大学 | Double-stator magnetic field modulation permanent magnet motor |
| CN107346930A (en) * | 2016-05-06 | 2017-11-14 | 南京理工大学 | High torque density permanent magnetic electric rotating machine |
| CN106849582A (en) * | 2017-03-20 | 2017-06-13 | 山东理工大学 | A kind of body-sensing car permanent magnetism wheel hub motor |
| CN109361276A (en) * | 2018-11-05 | 2019-02-19 | 赣州诚正电机有限公司 | A kind of brushless rimless rare-earth permanent-magnet electric machine |
| CN111224478A (en) * | 2020-02-17 | 2020-06-02 | 南京航空航天大学 | A permanent magnet pole-cutting magnetic flux reverse motor |
| CN111224478B (en) * | 2020-02-17 | 2021-05-11 | 南京航空航天大学 | A permanent magnet pole-cutting magnetic flux reverse motor |
| CN113178962A (en) * | 2021-05-20 | 2021-07-27 | 河北工业大学 | Modularized rotor hybrid excitation magnetic flux reverse motor |
| CN113193670A (en) * | 2021-05-20 | 2021-07-30 | 河北工业大学 | Modularized flux reversal motor |
| CN113178962B (en) * | 2021-05-20 | 2023-02-24 | 河北工业大学 | Modularized rotor hybrid excitation magnetic flux reverse motor |
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Open date: 20100303 |