CN104113172A - E-tooth double-rotor flux-switching permanent magnet motor - Google Patents
E-tooth double-rotor flux-switching permanent magnet motor Download PDFInfo
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- CN104113172A CN104113172A CN201410366249.4A CN201410366249A CN104113172A CN 104113172 A CN104113172 A CN 104113172A CN 201410366249 A CN201410366249 A CN 201410366249A CN 104113172 A CN104113172 A CN 104113172A
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Abstract
The invention discloses an E-tooth double-rotor flux-switching permanent magnet motor. The E-tooth double-rotor flux-switching permanent magnet motor comprises an outer stator, a middle rotor and an inner rotor. Air gaps are formed between the middle rotor and the inner rotor as well as the outer stator; the middle rotor is of a double-salient-pole structure; both the outer stator and the inner rotor comprise a plurality of E-shaped magnetic iron cores, a plurality of permanent magnets and a plurality of armature windings; both ends and the middle of every E-shaped magnetic iron core are provided with core teeth, every permanent magnet is clamped between the core teeth at one ends of the corresponding two neighboring E-shaped magnetic iron cores, and every armature winding is wound on the corresponding permanent magnet and used for clamping two core teeth of the permanent magnet; the magnetization directions of every two neighboring permanent magnet are opposite; the inner rotor sleeves an inner rotor spindle, a magnetic insulating sleeve is arranged between the inner rotor and the inner rotor spindle; the armature windings are composed of multi-phase symmetrically-distributed concentrated windings and are of the same structure. The E-tooth double-rotor flux-switching permanent magnet motor can effectively reduce consumption of permanent magnets and achieve high reliability.
Description
Technical field
The invention belongs to machine field, relate to a kind of magneto, be specifically related to a kind of E shape tooth birotor Magneticflux-switching type magneto.
Background technology
Present Global is faced with ecological deterioration, and oil is day by day in short supply, and internal-combustion engines vehicle is one of major reason causing this harm.For improving the mankind's living environment, reduce the pressure of oil shortage, energy-conservation and reduction of discharging is the trend of future automobile technical development, mixed power electric car becomes one of developing direction with advantages such as its efficient low-dischargings.
Hybrid power system with strongest influence power is series-parallel hybrid electric system at present, it is the structure that two motors are connected by planetary gear and engine, realize speed, torque coupling and the distribution of batteries and two groups of energy of internal combustion engine, so that system works is in efficient district.But adopt planetary transmission device to have the deficiency of the aspects such as noise, efficiency, reliability, price, and all need long-term regularly maintenance.In recent years, researcher has proposed the electric controlling stepless variable speed transmission device based on double-rotor machine, has saved planetary gears, makes structure simpler, compact.This electric controlling stepless variable speed transmission device is actually the energy converter being formed by two motor set, motor after integrated contains three parts: a stator and two rotors, each rotor respectively has an independently output shaft, difference connecting engine and driving shaft, and two motors are used for respectively regulating speed discrepancy and the torque differences between engine and driving shaft, thereby control when realizing engine speed and torque, engine may be simultaneously operated in optimum speed and best torque point like this, it is the state of high efficiency and low emission, make motor vehicle driven by mixed power under multiple load road conditions, keep internal combustion engine at efficient and best fuel-economy state, therefore the electric controlling stepless variable speed transmission device based on double-rotor machine becomes the study hotspot of hybrid vehicle gradually.The price that magneto is added permanent magnetic material with the advantage of high power density is increasingly rationalized, and makes the application of Permanent Magnet Double Rotor Motor in hybrid vehicle increasingly extensive.
At present, the Permanent Magnet Double Rotor Motor of main flow is that external stator and internal rotor are all embedded with winding, and center roller mounts the structure of permanent magnet.Yet, inside and outside center roller, all mount permanent magnet, the drawback that can bring permanent magnet heat radiation difficulty and mechanical strength to weaken.
Stator permanent-magnet birotor flux switch motor combines the design feature of conventional type flux switch permanent magnet motor, and permanent magnet is built in stator and internal rotor, both makes on center roller without permanent magnet also without winding, and heat radiation requires low and mechanical strength to strengthen.But according to the result of study of flux switch permanent magnet motor, permanent magnet is placed in to the consumption of external stator and internal rotor meeting increase permanent magnet, raises the cost, and reduced groove area, and then limited torque density; More permanent magnet consumption also can increase the eddy current loss on permanent magnet.Therefore under the prerequisite that, a key technology of stator permanent-magnet double-rotor machine design is exactly guaranteed performance, reduce permanent magnet consumption.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of E shape tooth birotor Magneticflux-switching type magneto is provided, in this motor, the consumption of permanent magnet is few.
For achieving the above object, E shape tooth birotor Magneticflux-switching type magneto of the present invention comprises external stator, internal rotor rotating shaft, center roller and internal rotor, between center roller and internal rotor and external stator, all there is air gap, center roller is double-salient-pole structure, external stator and internal rotor include some E shape magnetic conductive iron, permanent magnet and armature winding, two ends and the middle part of E shape magnetic conductive iron are equipped with core tooth, permanent magnet is held between the core tooth of adjacent two E shape magnetic conductive iron one end, armature winding is wound in permanent magnet and for clamping two core tooth of described permanent magnet, the magnetizing direction of two adjacent permanent magnets is contrary, internal rotor is socketed in internal rotor rotating shaft, between internal rotor and internal rotor rotating shaft, be provided with magnetic shield, armature winding is comprised of heterogeneous symmetrical centralized winding, the structure of each phase armature winding is identical.
Described armature winding is three-phase set Chinese style winding, and every phase armature winding all comprises 2 coils, each phase armature winding 60 ° of mutual deviations on locus.
In the core tooth at described E shape magnetic conductive iron middle part, be wound with excitation winding pole coil.
Described center roller is straight groove structure or flume structure.
Described external stator and internal rotor include 6 E shape magnetic conductive iron.
In the course of work, internal rotor rotating shaft is carried out cooling by water-cooled or oil cooling to internal rotor.
The present invention has following beneficial effect:
E shape tooth birotor Magneticflux-switching type magneto of the present invention comprises external stator, center roller and internal rotor, external stator and internal rotor comprise some E shape magnetic conductive iron, permanent magnet and armature winding, permanent magnet is held between the core tooth of adjacent two E shape magnetic conductive iron one end, armature winding is wound in permanent magnet and for clamping two core tooth of described permanent magnet, the core tooth at E shape magnetic conductive iron middle part does not embed permanent magnet, thereby effectively reduces the consumption of permanent magnet.Described armature winding is comprised of heterogeneous symmetrical centralized winding, and coiling and setting-in are simple, winding overhang is shorter, copper loss is lower, is conducive to improve the operating efficiency of motor.The present invention has permanent magnet excitation and two kinds of modes of electric excitation, and when a kind of excitation mode breaks down, another kind of excitation mode can guarantee that motor normally moves, thereby improves the reliability of motor.In addition, utilize electricity excitation magnetic field to increase magnetic or degaussing to permanent magnet excitation magnetic field, increase magnetic and be conducive to improve torque, degaussing is conducive to improve the range of speeds, on center roller both without permanent magnet also without winding, be conducive to heat radiation and the high-speed cruising of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation while not being wound around excitation winding pole coil 7 in the core tooth at E shape magnetic conductive iron 6 middle parts in the present invention;
Fig. 3 is the structural representation while being wound with excitation winding pole coil 7 in the core tooth at E shape magnetic conductive iron 6 middle parts in the present invention;
Fig. 4 is that in the present invention, the magnetic line of force under interior permanent magnet 4 independent roles of external stator 1 distributes;
Fig. 5 is that in the present invention, the magnetic line of force under interior permanent magnet 4 independent roles of internal rotor 3 distributes;
Fig. 6 is that in the present invention, the magnetic line of force of the permanent magnet 4 one in internal rotor 3 and external stator 1 under working distributes.
Wherein, 1 is that external stator, 2 is that center roller, 3 is that internal rotor, 4 is that permanent magnet, 5 is that armature winding, 6 is that E shape magnetic conductive iron, 7 is that excitation winding pole coil, 8 is that magnetic shield, 9 is internal rotor rotating shaft.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, Fig. 2 and Fig. 3, E shape tooth birotor Magneticflux-switching type magneto of the present invention comprises external stator 1, internal rotor rotating shaft 9, center roller 2 and internal rotor 3, between center roller 2 and internal rotor 3 and external stator 1, all there is air gap, center roller 2 is double-salient-pole structure, external stator 1 and internal rotor 3 include some E shape magnetic conductive iron 6, permanent magnet 4 and armature winding 5, two ends and the middle part of E shape magnetic conductive iron 6 are equipped with core tooth, permanent magnet 4 is held between the core tooth of adjacent two E shape magnetic conductive iron 6 one end, armature winding 5 is wound in permanent magnet 4 and for clamping two core tooth of described permanent magnet 4, the magnetizing direction of two adjacent permanent magnets 4 is contrary, internal rotor 3 is socketed in internal rotor rotating shaft 9, between internal rotor 3 and internal rotor rotating shaft, be provided with magnetic shield 8, armature winding 5 is comprised of heterogeneous symmetrical centralized winding, the structure of each phase armature winding 5 is identical.
It should be noted that, described armature winding 5 is three-phase set Chinese style winding, every phase armature winding 5 all comprises 2 coils, each phase armature winding 5 60 ° of mutual deviations on locus, external stator 1 and internal rotor 3 include 6 E shape magnetic conductive iron 6, in the course of work, internal rotor rotating shaft 9 is carried out cooling by water-cooled or oil cooling to internal rotor 3.
Described center roller 2 is straight groove structure or flume structure, generally adopts straight groove structure, and the torque pulsation causing when harmonic wave and noise adopt flume structure when comparatively serious.
The present invention compares with conventional stator permanent-magnet birotor flux switch motor, and the core tooth at E shape magnetic conductive iron 6 middle parts does not embed permanent magnet 4, can effectively reduce the consumption of permanent magnet 4.In addition, the core tooth at E shape magnetic conductive iron 6 middle parts in external stator 1 and internal rotor 3 during not around excitation winding pole coil 7, provides separately excitation field by permanent magnet 4; When the core tooth at E shape magnetic conductive iron 6 middle parts in external stator 1 and internal rotor 3 is wound around excitation winding pole coil 7, by permanent magnet 4 and excitation winding pole coil 7, jointly provide excitation field, by regulating the size adjustment resultant magnetic field of electric exciting current.
In addition, the cooperation of external stator 1 number of poles/center roller 2 numbers of poles/internal rotor 3 numbers of poles as required can independent assortment, the counter potential waveform right and wrong that single winding coil produces are symmetric, need to pass through the incompatible reduction of Reasonable of stator poles/center roller 2 numbers of poles/internal rotor 3 numbers of poles, and, number of poles cooperatively interacts also can improve the torque density of motor, this dynamical system for mixed power electric car is very favourable, therefore, by the cooperation to external stator 1/ center roller 2/ internal rotor 3 numbers of poles, the global optimization of main design parameters, in copper loss fixedly in the situation that, realize counter potential waveform balanced, symmetrical and torque density maximum.
Embodiment mono-
It is example that the present embodiment be take the E shape tooth birotor Magneticflux-switching type magneto of threephase stator 6 utmost points/center roller 10 utmost points/internal rotor 6 utmost points, with reference to figure 1, described E shape tooth birotor Magneticflux-switching type magneto comprises external stator 1, center roller 2 and internal rotor 3, center roller 2 is double-salient-pole structure, between center roller 2 and external stator 1 and internal rotor 3, all there is air gap, external stator 1 and internal rotor 3 are all by 6 E shape magnetic conductive iron, 6 permanent magnets 4 and 6 armature winding 5 form, two ends and the middle part of E shape magnetic conductive iron 6 are equipped with core tooth, permanent magnet 4 is held between the core tooth of adjacent two E shape magnetic conductive iron 6 one end, cutting orientation magnetizing, and adjacent two permanent magnet 4 magnetizing directions are contrary, 6 armature winding 5 are assemblied in respectively in 6 core tooth that embed permanent magnet 4 according to the phase sequence of A-B-C, form the centralized winding that three-phase symmetrical distributes, every phase armature winding 5 comprises 2 coils, the core tooth at E shape magnetic conductive iron 6 middle parts, not around armature winding 5, only provides excitation field by permanent magnet 4.
With reference to figure 4, Fig. 5 and Fig. 6, the magnetic line of force of the present invention distributes and follows " minimum reluctance principle ".During external stator 1 permanent magnet 4 independent role, the magnetic line of force of the internal rotor 3 of flowing through seldom; During sub-permanent magnet 4 independent role of internal rotor 3, the magnetic line of force of the external stator 1 of flowing through seldom, illustrates that inside and outside Electromagnetic Field degree of coupling is very little, is conducive to realize the independent of inside and outside motor and controls, and meets the requirement of hybrid vehicle various working operation.
Claims (6)
1. an E shape tooth birotor Magneticflux-switching type magneto, it is characterized in that, comprise external stator (1), internal rotor rotating shaft (9), center roller (2) and internal rotor (3), between center roller (2) and internal rotor (3) and external stator (1), all there is air gap, center roller (2) is double-salient-pole structure, external stator (1) and internal rotor (3) include some E shape magnetic conductive iron (6), permanent magnet (4) and armature winding (5), two ends and the middle part of E shape magnetic conductive iron (6) are equipped with core tooth, permanent magnet (4) is held between the core tooth of adjacent two E shape magnetic conductive iron (6) one end, armature winding (5) is wound in permanent magnet (4) and for clamping two core tooth of described permanent magnet (4), the magnetizing direction of two adjacent permanent magnets (4) is contrary, internal rotor (3) is socketed in internal rotor rotating shaft (9), between internal rotor (3) and internal rotor rotating shaft, be provided with magnetic shield (8), armature winding (5) is comprised of heterogeneous symmetrical centralized winding, the structure of each phase armature winding (5) is identical.
2. E shape tooth birotor Magneticflux-switching type magneto according to claim 1, it is characterized in that, described armature winding (5) is three-phase set Chinese style winding, and every phase armature winding (5) all comprises 2 coils, each phase armature winding (5) 60 ° of mutual deviations on locus.
3. E shape tooth birotor Magneticflux-switching type magneto according to claim 1, is characterized in that, in the core tooth at described E shape magnetic conductive iron (6) middle part, is wound with excitation winding pole coil (7).
4. E shape tooth birotor Magneticflux-switching type magneto according to claim 1, is characterized in that, described center roller (2) is straight groove structure or flume structure.
5. E shape tooth birotor Magneticflux-switching type magneto according to claim 1, is characterized in that, described external stator (1) and internal rotor (3) include 6 E shape magnetic conductive iron (6).
6. E shape tooth birotor Magneticflux-switching type magneto according to claim 1, is characterized in that, in the course of work, internal rotor rotating shaft (9) is carried out cooling by water or oil to internal rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366249.4A CN104113172A (en) | 2014-07-29 | 2014-07-29 | E-tooth double-rotor flux-switching permanent magnet motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410366249.4A CN104113172A (en) | 2014-07-29 | 2014-07-29 | E-tooth double-rotor flux-switching permanent magnet motor |
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| CN104113172A true CN104113172A (en) | 2014-10-22 |
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| CN201410366249.4A Pending CN104113172A (en) | 2014-07-29 | 2014-07-29 | E-tooth double-rotor flux-switching permanent magnet motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410180A (en) * | 2014-12-11 | 2015-03-11 | 东南大学 | E-shaped stator core flux switching type hybrid permanent magnet memory motor |
| CN105375715A (en) * | 2015-11-09 | 2016-03-02 | 江苏大学 | Little rare earth type wide speed regulation hybrid permanent magnetic flux switching double stator motor |
| CN114268204A (en) * | 2022-03-01 | 2022-04-01 | 天津滨海高新区河工电器科技有限公司 | Flux switching motor with double permanent magnets and double armature windings |
Citations (4)
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| CN1937356A (en) * | 2006-09-15 | 2007-03-28 | 江苏大学 | Stator permanent-magnet double salient pole fault-tolerant motor |
| CN202210713U (en) * | 2011-08-26 | 2012-05-02 | 东南大学 | High reliability magnetic flux switching type motor |
| CN203326742U (en) * | 2013-06-26 | 2013-12-04 | 南京信息工程大学 | Dual-winding modularization bearing-free flux-switching permanent-magnet motor |
| CN204046376U (en) * | 2014-07-29 | 2014-12-24 | 西安建筑科技大学 | A kind of E shape tooth birotor Magneticflux-switching type magneto |
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2014
- 2014-07-29 CN CN201410366249.4A patent/CN104113172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937356A (en) * | 2006-09-15 | 2007-03-28 | 江苏大学 | Stator permanent-magnet double salient pole fault-tolerant motor |
| CN202210713U (en) * | 2011-08-26 | 2012-05-02 | 东南大学 | High reliability magnetic flux switching type motor |
| CN203326742U (en) * | 2013-06-26 | 2013-12-04 | 南京信息工程大学 | Dual-winding modularization bearing-free flux-switching permanent-magnet motor |
| CN204046376U (en) * | 2014-07-29 | 2014-12-24 | 西安建筑科技大学 | A kind of E shape tooth birotor Magneticflux-switching type magneto |
Non-Patent Citations (1)
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| 莫丽红 等: "定子永磁式双转子电机电磁性能分析", 《电机与控制学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410180A (en) * | 2014-12-11 | 2015-03-11 | 东南大学 | E-shaped stator core flux switching type hybrid permanent magnet memory motor |
| CN105375715A (en) * | 2015-11-09 | 2016-03-02 | 江苏大学 | Little rare earth type wide speed regulation hybrid permanent magnetic flux switching double stator motor |
| CN105375715B (en) * | 2015-11-09 | 2017-11-17 | 江苏大学 | Few terres rares wide range speed control hybrid permanent magnet magnetic flux switching Double-stator motor |
| CN114268204A (en) * | 2022-03-01 | 2022-04-01 | 天津滨海高新区河工电器科技有限公司 | Flux switching motor with double permanent magnets and double armature windings |
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Application publication date: 20141022 |