CN103066713A - Novel magnetic flux switching magnetic pole structure and motor - Google Patents
Novel magnetic flux switching magnetic pole structure and motor Download PDFInfo
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- CN103066713A CN103066713A CN2013100002712A CN201310000271A CN103066713A CN 103066713 A CN103066713 A CN 103066713A CN 2013100002712 A CN2013100002712 A CN 2013100002712A CN 201310000271 A CN201310000271 A CN 201310000271A CN 103066713 A CN103066713 A CN 103066713A
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Abstract
The invention discloses a novel magnetic flux switching magnetic pole structure and a motor. The novel magnetic flux switching magnetic pole structure and the motor comprise a fixed portion and a moving portion. The fixed portion comprises an iron core, armature windings and field windings, wherein the iron core is provided with a plurality of fixed salient poles which are distributed at intervals, the adjacent fixed salient poles form excitation air gaps and armature air gaps, each field winding is a direct current winding and embedded into an excitation air gap, and each armature winding is an alternating current winding and winds the yoke portion of an armature air gap. The moving portion is a salient pole structure and provided with a plurality of moving salient poles. The novel magnetic flux switching magnetic pole structure and the motor have the advantages of being high in utility rate of space, high in power density, large in torque, high-efficient, good in reliability, and small in torque fluctuation.
Description
Technical field
The present invention relates to magnetic flux and switch pole motor, relate in particular to a kind of novel magnetic flux and switch field structure and motor, belong to electric equipment and drive and field of motor manufacturing.
Background technology
Motor driving apparatus is consuming the overwhelming majority of industrial energy, and is energy-conservation for advocating, and constantly has in the world new motor standard to occur, and efficient and power density are had higher requirement; Asynchronous machine still occupies certain status at industrial circle at present, consuming the major part of industrial energy, improve its efficient, need complicated technique, rotor permanent magnet type magneto since permanent magnet on rotor, install complicated, and be difficult for adjustable magnetic, more than two kinds of alternating current machines all be subject to the restriction of speed adjustable range, and manufacturing process is complicated, difficult in maintenance, therefore demand the problem that the development of new motor goes to improve above appearance urgently.
Flux switch motor is the Novel electric drive motor that occurred in recent years, can exchange and be with the copped wave ac operation, it is a kind of novel buncher, has speed-regulating range width, the high excellent characteristics that waits of power density, and the easier heat radiation of the rotor permanent magnet type of comparing motor, make permanent magnet reduce the impact that is subjected to temperature, and, permanent magnet and coil windings do not had on the rotor, be the double-salient-pole structure, therefore its is simple in structure firm, and system reliability is high, because permanent magnet places stator, therefore air-gap field is easy to regulate so that its be very suitable for efficiently, speed governing and high-speed cruising.
The magnetic pass switching electromotor that occurs at present, being generally the interchange winding is wound on the stator salient poles, excitation source is embedded in the stator salient poles, excitation source has electric excitation, permanent magnet excitation and electricity and permanent magnetism mixing excitation, in the magnetic flux handoff procedure, exchange the armature winding fluctuating magnetic field through permanent magnet, this has caused eddy current loss larger in the permanent magnet, and larger magnetic circuit reluctance means that larger torque ripple exists simultaneously; No matter above which kind of excitation mode, the low obvious problem of copper factor is all arranged, because copper factor is low, power density also is difficult to further raising, except this, because adjacent phase winding has been shared a stator slot, so that the coupling of vortex field is obviously arranged between the armature winding, therefore aggravated the generation of heat, heat abstractor has been proposed further requirement.
Summary of the invention
The technical problem that the present invention solves provides a kind of novel magnetic flux and switches field structure, and it can make the motor that adopts this field structure have higher power density, high reliability, higher efficient and reduce the output torque fluctuation.
For solving the problem described in the background technology, the present invention adopts following technical scheme:
A kind of novel magnetic flux switches field structure (0), it is characterized in that, comprising:
Standing part (1) and movable part (M), described standing part is by secured core (2), armature winding (A) and excitation winding (F-1, F-2) form, wherein, described secured core has a plurality of fixedly salient pole (3-1 with certain gap distribution, 3-2,3-3,3-4), consisted of respectively excitation air gap (FA-1 by adjacent described fixedly salient pole, FA-2) and armature gap (AR), described excitation winding is the direct current winding, be embedded in the described excitation air gap, described armature winding is wound in the yoke section (AR-1) of described armature gap for exchanging winding; Consist of magnetic flux by fixedly salient pole (3-1,3-2) and excitation air gap (FA-1) and switched salient pole (FS-1), consisted of magnetic flux switching salient pole (FS-2) by (3-3,3-4) and excitation air gap (FA-2).
The punching that described secured core (2) is made by permeability magnetic material is overrided to form.
Described movable part (M) is salient-pole structure, is distributed with several and moves salient pole (MS).
The punching that described movable part is made by permeability magnetic material is overrided to form.
Described movable part is without magnetic source.
Wherein, described excitation winding is the direct current winding, logical direct current, and described armature winding is for exchanging winding, indirect current.
Preferably, described standing part is removable, and described movable part can be fixed.
Wherein alternatively, described field structure can be a plurality of separately and constitute jointly electric energy and mechanical energy converting unit;
When constituting jointly, the both sides magnetic flux of adjacent armature winding switches the salient pole unit can synthesize one.
The armature winding indirect current, create the armature alternating magnetic field, excitation winding is led to direct current, and be connected in series, create excitation field, excitation field and armature alternating magnetic field jointly pass through air gap and rotor is closed, when the alternating magnetic field of armature winding generation changes direction, flow direction repercussion in the armature gap yoke section, magnetic circuit should become closed path, thus externally acting, and a kind of novel magnetic flux of the present invention switches field structure, compare with present magnetic flux switching magnetic pole technology, following beneficial effect is arranged: copper factor is high, thereby power density is high, and magnetic circuit reluctance is low, because an armature winding occupies a groove, so do not exist the vortex field between the phase armature winding to be coupled.
A kind of motor (01) is characterized in that, comprising:
Stator (S), described stator is by stator core (SI), armature winding (A1～A4, B1～B4, C1～C4) and excitation winding (F1～F12) form; Described stator core is distributed with some stator salient poles (SP-1, SP-2) of arranging with certain interval, and described stator salient poles is distinguished excitation air gap (FG) and armature gap (AG) mutually; Described armature winding is the interchange winding, and is wound in the yoke section (SY) of excitation air gap, and an end is embedded in the armature gap; Described excitation winding is the direct current winding, is embedded in the excitation air gap; The yoke section (MB) of excitation air gap is magnetic bridge; Form magnetic flux by stator salient poles (SP-1, SP-2) and excitation air gap and switch salient pole (SS);
The armature winding indirect current, the armature field of adjacent phase is opposite, therefore, two like magnetic poles repel each other, utilize magnetic to gather principle, it is closed through air gap and rotor that the magnetic flux that adjacent phase armature winding produces switches salient pole by magnetic flux jointly, externally output acting, each armature winding occupies a groove, and armature field is externally acting also.
Wherein, the punching of being made by ferromagnetic material of described stator core is overrided to form.
Rotor (R), described rotor is salient-pole structure, is distributed with several rotor with salient pole (RSP).
Wherein, the punching of being made by ferromagnetic material of described rotor is overrided to form.
Wherein, described excitation winding energising opposite direction is alternately distributed.
Preferably, described stator salient poles is inside and outside, and rotor with salient pole is inwardly with outside;
When stator salient poles was inside, rotor with salient pole was outside, had consisted of inner rotor motor;
When stator salient poles was outside, rotor with salient pole was inside, had consisted of external rotor electric machine.
Wherein, preferably, described stator salient poles direction is along axis, and rotor with salient pole consists of axial direction electric machine vertically.
Wherein, preferably, described stator salient poles direction is radially horizontal radially to consist of cross motor with the rotor with salient pole direction.
Wherein, described rotor is salient-pole structure, and without the magnetic potential source, rotor with salient pole can be straight-tooth and helical teeth on the rotor, and preferably, rotor with salient pole air gap pole-face two ends can be a quadratic surface and consist of, and reaches the stator salient poles pole-face two ends of making peace and consists of the gap structure that ladder becomes.
Beneficial effect:
A kind of novel magnetic flux of the present invention switches field structure and motor, a kind of motor (01) switches the result that electromagnetic structure (0) is used in combination for a kind of novel magnetic flux, adjacent like this armature winding shares a magnetic flux and switches salient pole, with the limited space of abundant application, increasing power density, an armature winding occupies a groove, adjacent excitation winding energising opposite direction, compare with existing flux switch motor, use the motor that a kind of novel magnetic flux of the present invention switches field structure to have following beneficial effect:
1) higher copper factor, therefore larger power density;
2) magnetic circuit reluctance is lower, therefore lower loss and lower torque ripple;
3) do not have the vortex field coupling between the phase armature winding, so efficient is higher.
4) owing to shared flux between the adjacent phase winding switches salient pole, thus compact conformation, torsion is large, and load capacity is higher.
Description of drawings
Fig. 1 is that a kind of novel magnetic flux of the present invention switches the field structure schematic diagram;
Fig. 2 is the schematic diagram of a kind of motor of the present invention;
Fig. 3 is the stator core schematic diagram among Fig. 2;
Fig. 4 is the phase winding back emf waveform figure for a kind of motor of the present invention.
Embodiment
In connection with accompanying drawing, the present invention is described in more detail now, provided example of the present invention in the accompanying drawing.
With reference to figure 1, schematic diagram for a kind of novel magnetic pole structure of the present invention (0), comprise: standing part (1) and movable part (M), described standing part is by secured core (2), armature winding (A) and excitation winding (F-1, F-2) form, wherein, described secured core has a plurality of fixedly salient pole (3-1 with certain gap distribution, 3-2,3-3,3-4), consisted of respectively excitation air gap (FA-1 by adjacent described fixedly salient pole, FA-2) and armature gap (AR), described excitation winding is the direct current winding, be embedded in the described excitation air gap, described armature winding is wound in the yoke section (AR-1) of described armature gap for exchanging winding; Consist of magnetic flux by fixedly salient pole (3-1,3-2) and excitation air gap (FA-1) and switched salient pole (FS-1), consisted of magnetic flux switching salient pole (FS-2) by (3-3,3-4) and excitation air gap (FA-2).
Described movable part (M) is salient-pole structure, is distributed with several and moves salient pole (MS).
The punching that described movable part is made by permeability magnetic material is overrided to form.
Described movable part (M) is without magnetic source.
Wherein, described excitation winding is the direct current winding, logical direct current, and described armature winding is for exchanging winding, indirect current.
Continuation is schemed with reference to (a) among the figure 1, the magnetic flux that the magnetic flux that armature winding produces and excitation winding produce is all counterclockwise, through armature gap yoke section (AR-1), fixing salient pole (3-1), working gas gap, mobile salient pole (MS) and fixing salient pole (3-3) closure, please continue to scheme with reference to (b) among the figure 1, the magnetic flux that the magnetic flux that armature winding produces and excitation winding produce is all clockwise direction, through armature gap yoke section (AR-1), fixing salient pole (3-4), working gas gap, movable part (M) and mobile salient pole (MS), fixing salient pole (3-2) closure, through above two processes, the standing part magnetic flux is finished once and is switched, and movable part moves a tooth pitch.
During implementation, the punching that the described secured core in the standing part is made by permeability magnetic material laminates, and after fixing with the magnetic conduction rivet, excitation winding is embedded in the excitation air gap direct current of the logical opposite direction of adjacent excitation winding; Armature winding is wound in the yoke section of armature gap, Yi Bian be embedded in the armature gap; After integral installation is complete, be fixed in the support.Connect the direct current input after excitation winding can be connected in series, preferably, when a plurality of magnetic fluxs switching field structures are united use, but the excitation winding series and parallel connections mixes connection; Armature winding (A) passes to alternating current.
With reference to figure 2, be a kind of electric machine structure schematic diagram of the present invention; Be a kind of three-phase flux switch motor, be respectively armature winding (A1～A4) and armature winding (B1～B4) and armature winding (C1～C4), this three-phase flux switch motor comprises: stator (S), described stator is by stator core (SI), armature winding (A1～A4, B1～B4, C1～C4) and excitation winding (F1～F12) form; Described stator core is distributed with some stator salient poles (SP-1, SP-2) of arranging with certain interval, and described stator salient poles is distinguished excitation air gap (FG) and armature gap (AG) mutually; Please refer to Fig. 3, be the stator core details drawing of a kind of motor of the present invention;
Described armature winding is the interchange winding, and is wound in the yoke section (SY) of excitation air gap, and an end is embedded in the armature gap; Described excitation winding is the direct current winding, is embedded in the excitation air gap; The yoke section (MB) of excitation air gap is magnetic bridge; During implementation, armature winding and excitation winding can be connected and go here and there and the series-parallel connection link, after stator core is laminated by punching, respectively armature winding and excitation winding are placed corresponding described position, notch can be with carving piece every magnetic with holding armature coil and magnet exciting coil and auxiliary heat dissipation, afterwards integral installation forms magnetic flux by stator salient poles (SP-1, SP-2) and excitation air gap and switches salient pole (SS) in being fixed in support;
Wherein, described excitation winding energising opposite direction is alternately distributed.
Please continue with reference to figure 2, arrow line is the flow direction of respective electrical pivot winding this moment, armature winding end Magnetic Phase adjacent in the threephase armature winding is same, thereby two like magnetic poles repel each other utilizes magnetic to gather principle, the magnetic flux that adjacent phase armature winding produces switches salient pole through air gap and rotor and rotor with salient pole closure by magnetic flux jointly, externally output acting, each armature winding occupies a groove, and armature field is externally acting also; Adjacent excitation winding energising opposite direction.With reference to figure 2, the bullet electric current outgoing direction in the excitation winding, cross round dot are that electric current advances direction.
Rotor (R), described rotor is salient-pole structure, is distributed with several rotor with salient pole (RSP).
During implementation, the punching that described rotor is made by ferromagnetic material is overrided to form rear fixing with the magnetic conduction rivet and fixedly is placed on the axle.
Please refer to Fig. 4, for the generating kinetic potential oscillogram of a kind of novel magnetic flux switching field structure of the present invention and motor, can find out that significantly counter electromotive force of motor of the present invention has sinusoidal wave feature, thereby, be suitable for alternating current work.
In addition, also need to illustrate, although specific embodiments of the invention disclose as mentioned above, the present invention can use other forms of flux switch motor, structures such as other external rotors and disk rotor, it is all similar with above structure to use inner and outer rotors of the present invention and axial magnetic flux switching disc type electric machine execution mode, here repeat no more, the combination of the salient pole of stator and rotor also can be adopted other, such as 6/10,6/8 etc., its concrete principle and enforcement and roughly the same above also repeat no more here.
Although embodiments of the invention have disclosed as above, the present invention is not limited to above-described embodiment, and any those skilled in the art are not within breaking away from the disclosed scope of the present invention, when doing a little change and adjustment.
Claims (10)
1. a novel magnetic flux switches field structure (0), it is characterized in that, comprising:
Standing part (1) and movable part (M), described standing part is by secured core (2), armature winding (A) and excitation winding (F-1, F-2) form, wherein, described secured core has a plurality of fixedly salient pole (3-1 with certain gap distribution, 3-2,3-3,3-4), consisted of respectively excitation air gap (FA-1 by adjacent described fixedly salient pole, FA-2) and armature gap (AR), described excitation winding is the direct current winding, be embedded in the described excitation air gap, described armature winding is wound in the yoke section (AR-1) of described armature gap for exchanging winding; Consist of magnetic flux by fixedly salient pole (3-1,3-2) and excitation air gap (FA-1) and switched salient pole (FS-1), consisted of magnetic flux switching salient pole (FS-2) by (3-3,3-4) and excitation air gap (FA-2);
The punching that described secured core is made by permeability magnetic material is overrided to form,
Described movable part is salient-pole structure, is distributed with several and moves salient pole (MS);
The punching that described movable part is made by permeability magnetic material is overrided to form,
Described movable part is without magnetic source.
2. magnetic flux according to claim 1 switches field structure, it is characterized in that described excitation winding is the direct current winding, logical direct current, and described armature winding is for exchanging winding, indirect current.
3. magnetic flux according to claim 1 switches field structure, it is characterized in that described standing part is removable, and described movable part can be fixed.
4. magnetic flux according to claim 1 switches field structure, it is characterized in that, described field structure can be a plurality of separately and constitute jointly electric energy and mechanical energy converting unit;
When constituting jointly, the both sides magnetic flux of adjacent armature winding switches the salient pole unit can synthesize one.
5. a motor (01) is characterized in that, comprising:
Stator (S), described stator is by stator core (SI), armature winding (A1～A4, B1～B4, C1～C4) and excitation winding (F1～F12) form; Described stator core is distributed with some stator salient poles (SP-1, SP-2) of arranging with certain interval, and described stator salient poles is distinguished excitation air gap (FG) and armature gap (AG) mutually; Described armature winding is the interchange winding, and is wound in the yoke section (SY) of excitation air gap, and an end is embedded in the armature gap; Described excitation winding is the direct current winding, is embedded in the excitation air gap; The yoke section (MB) of excitation air gap is magnetic bridge; Form magnetic flux by stator salient poles (SP-1, SP-2) and excitation air gap and switched salient pole (SS);
Wherein, the punching of being made by ferromagnetic material of described stator core is overrided to form;
Rotor (R), described rotor is salient-pole structure, is distributed with several rotor with salient pole (RSP);
Wherein, the punching of being made by ferromagnetic material of described rotor is overrided to form.
6. a kind of motor according to claim 5 is characterized in that, the energising opposite direction of adjacent excitation winding during described excitation winding is logical.
7. a kind of motor according to claim 5 is characterized in that, described stator salient poles is inside and outside, and rotor with salient pole is inwardly with outside;
When stator salient poles was inside, rotor with salient pole was outside, had consisted of inner rotor motor;
When stator salient poles was outside, rotor with salient pole was inside, had consisted of external rotor electric machine.
8. a kind of motor according to claim 5 is characterized in that, described stator salient poles direction is along axis, and rotor with salient pole vertically.
9. a kind of motor according to claim 5 is characterized in that, described stator salient poles direction is radially horizontal radially to consist of cross motor with the rotor with salient pole direction.
10. a kind of motor according to claim 5, it is characterized in that, described rotor is salient-pole structure, on the rotor without the magnetic potential source, rotor with salient pole can be straight-tooth and helical teeth, rotor with salient pole air gap pole-face two ends can be a quadratic surface and consist of, and reach the stator salient poles pole-face two ends of making peace and consist of the gap structure that ladder becomes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100002712A CN103066713A (en) | 2013-01-03 | 2013-01-03 | Novel magnetic flux switching magnetic pole structure and motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100002712A CN103066713A (en) | 2013-01-03 | 2013-01-03 | Novel magnetic flux switching magnetic pole structure and motor |
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| CN2013100002712A Pending CN103066713A (en) | 2013-01-03 | 2013-01-03 | Novel magnetic flux switching magnetic pole structure and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391120A (en) * | 2018-11-13 | 2019-02-26 | 南京工业大学 | A kind of drum type brake electric excitation biconvex electrode linear motor |
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| GB2468694A (en) * | 2009-03-18 | 2010-09-22 | Imra Europ S A S Uk Res Ct | Field pole layout in an inductor machine |
| CN201868960U (en) * | 2010-11-23 | 2011-06-15 | 东南大学 | Magnetic flux changing-over power generator |
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
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2013
- 2013-01-03 CN CN2013100002712A patent/CN103066713A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2468694A (en) * | 2009-03-18 | 2010-09-22 | Imra Europ S A S Uk Res Ct | Field pole layout in an inductor machine |
| CN201868960U (en) * | 2010-11-23 | 2011-06-15 | 东南大学 | Magnetic flux changing-over power generator |
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
Non-Patent Citations (1)
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| 王道涵: "新型磁通切换型磁阻电机系统的分析、设计与控制研究", 《工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109391120A (en) * | 2018-11-13 | 2019-02-26 | 南京工业大学 | A kind of drum type brake electric excitation biconvex electrode linear motor |
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