CN110429778A - A kind of electronic automobile-used U-shaped double-stator structure switched reluctance machines - Google Patents
A kind of electronic automobile-used U-shaped double-stator structure switched reluctance machines Download PDFInfo
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- CN110429778A CN110429778A CN201910819153.1A CN201910819153A CN110429778A CN 110429778 A CN110429778 A CN 110429778A CN 201910819153 A CN201910819153 A CN 201910819153A CN 110429778 A CN110429778 A CN 110429778A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
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- Synchronous Machinery (AREA)
Abstract
The present invention relates to technical field of motors, disclose a kind of electronic automobile-used U-shaped double-stator structure switched reluctance machines, specifically: the rotor including bilateral tooth, rotor inside are equipped with concentric inner stator support portion;Concentric external stator support portion is equipped on the outside of rotor, the inner stator support portion and external stator support portion distinguish the N number of stator piecemeal of circumference uniform distribution, stator piecemeal is U-shaped structure, stator piecemeal all has two stator tooths, concentratred winding is equipped on each stator tooth, the polarity of two stator tooths on each stator piecemeal is opposite;Under working condition, default sub-piecemeal and external stator piecemeal are respectively turned on a phase, this two-phase differs certain space angle α, identical as the adjacent stators tooth polarity on adjacent external stator piecemeal in the default sub-piecemeal of this two-phase.Motor provided by the present invention has the advantages that torque density is big, high-efficient, torque pulsation is small, has good engineering application value.
Description
Technical field
The present invention relates to technical field of motors, are specifically related to a kind of electronic automobile-used U-shaped double-stator structure switching magnetic-resistance electricity
Machine.
Background technique
The advantages that switched reluctance machines have structure simple, sturdy and durable, reliable for operation, and energy conversion efficiency is high, therefore
Switched reluctance machines are in electric vehicle using more and more extensive.Due to increasing rapidly for rare earth material price, so that using permanent magnetism
The motor cost of body increases.Switched reluctance machines follow magnetic resistance minimum principle, therefore the magnetic circuit of switched reluctance machines is to switch magnetic
The energy conversion of resistance motor plays an important role, and the application of the good magnetic material of performance and shortening magnetic flux path are conducive to subtract
The energy loss of few motor.When having phase work between the adjacent phase of traditional magnetic resistant electric motor with double stator switch, lead between other phases
It crosses rotor with salient pole to interfere with each other, causes magnetic flux path longer, and make during motor rotates commutation there are magnetic flux reversal
The output torque for obtaining motor reduces, and iron loss increases, and wind moussing loss increases, and then electric efficiency is caused to reduce.And tradition is double fixed
Sub switch reluctance motor also increases the torque pulsation of motor while increasing motor electromagnetic torque.Therefore it is set in electric machine structure
The meter stage, how increase motor output torque simultaneously reduce motor torque pulsation, improve motor delivery efficiency become
The urgent problem to be solved in motor construction stage.
Summary of the invention
It is electronic automobile-used U-shaped double fixed the invention aims to provide that a kind of torque density is big, high-efficient, torque pulsation is small
Minor structure switched reluctance machines.
In order to achieve the above objectives, the present invention is implemented according to following technical scheme: a kind of electronic automobile-used U-shaped bimorph transducer knot
Structure switched reluctance machines, the rotor including bilateral tooth, rotor inside are equipped with concentric inner stator support portion;It is equipped on the outside of rotor
Concentric external stator support portion, the inner stator support portion outer wall are uniformly distributed along the circumference N number of default sub-piecemeal, the external stator branch
Support part inner wall is along the circumferential direction evenly distributed with N number of external stator piecemeal, and N is positive even numbers;The default sub-piecemeal and external stator piecemeal are U
Type structure and opening direction is towards rotor, default sub-piecemeal is identical with the central angle of external stator piecemeal, default sub-piecemeal and outer fixed
Sub-piecemeal is respectively provided with two stator tooths for constituting U-shaped structure, and concentratred winding, each inner stator point are equipped on each stator tooth
The polarity of two stator tooths on block or external stator piecemeal is opposite;Two external stator piecemeals diametrically are connected into a phase, diameter
A phase is connected into two opposite default sub-piecemeals;Under working condition, default sub-piecemeal and external stator piecemeal are respectively turned on one
Phase, this two-phase differ the central angle of certain default sub-piecemeal of space angle α, α >, and in the default sub-piecemeal of this two-phase with phase
Adjacent stators tooth polarity on adjacent external stator piecemeal is identical.
Preferably, the rotor includes that rotor body, multiple internal tooths and external tooth, internal tooth are equal along rotor body inside circumference
Cloth, external tooth is uniformly distributed along rotor body outer circumference, and internal tooth is identical with external tooth quantity, and the center line of internal tooth and external tooth is located at rotor
Radial direction, adjacent internal tooth and external tooth center line have mechanical angle θ.
Preferably, the mechanical angle θ is 1-4 °.
Principle explanation: 1, default sub-piecemeal and external stator piecemeal use U-shaped structure, are respectively provided with two stator tooths, each
The polarity of two stator tooths in default sub-piecemeal or external stator piecemeal is opposite;Two external stator piecemeals diametrically are connected into
One phase, radial two opposite default sub-piecemeals are connected into a phase;Under working condition, default sub-piecemeal and external stator piecemeal difference
A phase is connected, this two-phase differs the central angle of certain default sub-piecemeal of space angle α, α >, and the default sub-piecemeal of this two-phase
Upper identical as the adjacent stators tooth polarity on adjacent external stator piecemeal, under the working condition, adjacent default sub-piecemeal is generated
The magnetic field that is generated with external stator piecemeal of magnetic field repel each other, i.e., the magnetic line of force that generates of external stator piecemeal winding passes through U-shaped stator tooth, outer
Layer air gap, rotor external tooth, rotor yoke closure, the magnetic line of force that default sub-piecemeal winding generates pass through U-shaped stator tooth, internal layer gas
Gap, rotor internal tooth, rotor yoke closure.Therefore the magnetic field that inside and outside stator piecemeal winding generates can be by spatially decoupled, according to need
External stator piecemeal magnetic field and default sub-piecemeal magnetic field is asked to be controlled respectively;
2, illustrate 1 elaboration according to principle, the motor of the application is capable of forming shorter magnetic flux path, motor in the operating condition
Core loss reduce, motor output torque increase, and then improve motor delivery efficiency;
3, rotor internal tooth and rotor external tooth center line offset angular, so that torque peak and external stator that electric motor internal stator generates produce
The torque valley of the raw superposition of torque valley, electric motor internal stator generation is superimposed with the torque peak that external stator generates, and can reduce electricity
The torque pulsation of machine.
The invention has the benefit that motor provided by the present invention has, torque density is big, high-efficient, torque pulsation is small
The advantages of, there is good engineering application value.
Detailed description of the invention
Fig. 1 is the radial structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the stator tooth polarity distribution figure of Fig. 1 of the present invention.
Fig. 3 is 1 rotor structure schematic diagram of the embodiment of the present invention.
Fig. 4 is motion state diagram of 1 motor of the embodiment of the present invention at the moment 1.
Fig. 5 is motion state diagram of 1 motor of the embodiment of the present invention at the moment 2.
Fig. 6 is motion state diagram of 1 motor of the embodiment of the present invention at the moment 3.
Fig. 7 is motion state diagram of 1 motor of the embodiment of the present invention at the moment 4.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the invention will be further described, in the illustrative examples of the invention
And explanation is used to explain the present invention, but not as a limitation of the invention.
Embodiment 1
As shown in Figure 1-Figure 3, present embodiments providing a kind of 16/18 pole of 8 phase, (4 phase of inner stator, 4 phase of external stator, stator poles are
16, rotor number of poles is that 18) electronic automobile-used U-shaped double-stator structure switched reluctance machines, the rotor 1 including bilateral tooth, rotor include
103,18 rotor body 101, internal tooth 102 and external tooth internal tooths 102 are uniformly distributed along 101 inside circumference of rotor body, 18 external tooths 103
Uniformly distributed along 101 outer circumference of rotor body, the center line of internal tooth 102 and external tooth 103 is located at the radial direction of rotor 1, in order to drop
The torque pulsation of low motor, adjacent internal tooth 102 and 103 center line of external tooth have angle theta, θ=4 °;
Concentric inner stator support portion 2 is equipped on the inside of rotor 1;Concentric external stator support portion 3, institute are equipped on the outside of rotor 1
It states 2 outer wall of inner stator support portion and is along the circumferential direction evenly distributed with 8 default sub-piecemeals 4,3 inner wall of external stator support portion is circumferentially square
To uniformly distributed 8 external stator piecemeals 5;The default sub-piecemeal 4 and external stator piecemeal 5 are U-shaped structure and opening direction both faces towards
Rotor 2, default sub-piecemeal 4 and external stator piecemeal 5 are respectively provided with two stator tooths 6, and stator tooth 4 is equipped with concentratred winding 7, radial
Two opposite external stator piecemeals 5 are connected into a phase, and radial two opposite default sub-piecemeals 4 are connected into a phase, such as Fig. 1 institute
Show, A and A ' form A phase, and B and B ' form B phase, and C and C ' form C phase, and D and D ' form D phase, and E and E ' form E phase, F and F ' composition
F phase, G and G ' form G phase, and H and H ' form H phase;
On the disc that the stator tooth end face of all external stator piecemeals 5 is in and rotor 1 is concentric and it has outside between rotor 1
Layer air gap;On the disc that the stator tooth end face of all default sub-piecemeals 4 is in and rotor 1 is concentric and it has between rotor 1
There is internal layer air gap;External stator piecemeal 5 and the one-to-one correspondence of default sub-piecemeal 4, corresponding external stator piecemeal 5 and default sub-piecemeal 4
Two stator tooths also correspond in radiation direction, by the winding mode of Fig. 1, so that from the default sub-piecemeal of A and E external stator
Piecemeal rises, sequence counter-clockwise, as shown in Fig. 2, in the case where being all connected or being respectively turned on, the stator tooth of external stator piecemeal 5
Polarity distribution is followed successively by N-S-S-N-N-S-S-N-N-S-S-N-N-S-S-N, the polarity distribution of the stator tooth of default sub-piecemeal 4 according to
Secondary is S-N-N-S-S-N-N-S-S-N-N-S-S-N-N-S.
As in Fig. 4-7(figure omit external stator support portion 3) shown in, the present embodiment in the operating condition, the two-phase phase of conducting
Difference space angle is α=90 °, is conducted when moment 1 for G phase and A, and whens moment 2 is conducted for H phase and B, and whens moment 3 is E phase and C
Be conducted, be conducted for F phase with D when moment 4, the dotted line with the arrow in Fig. 4-7 for the moment magnetic line of force direction.To guarantee
Under coil on state, in the default sub-piecemeal 4 of the two-phase of each moment conducting with it is adjacent fixed on adjacent external stator piecemeal 5
Sub- tooth polarity is identical.The magnetic field that the magnetic field that adjacent default sub-piecemeal 4 generates is generated with external stator piecemeal 5 is repelled each other, i.e. external stator point
5 winding of block generate the magnetic line of force by U-shaped stator tooth, outer layer air gap, rotor external tooth, rotor yoke closure, default sub-piecemeal 4 around
The magnetic line of force that group generates passes through U-shaped stator tooth, internal layer air gap, rotor internal tooth, rotor yoke closure.Therefore inside and outside stator piecemeal 5
The magnetic field that winding generates can be by spatially decoupled, and external stator field and inner stator magnetic field are controlled respectively according to demand.
When specifically used, rotor 1 is set as cage-shaped structure or other are supported it to rotate and do not interfere external stator piecemeal 5
With the structure of default sub-piecemeal 4, which belongs to those skilled in the art's conventional techniques, and the present embodiment without retouching in detail
It states and illustrates.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (3)
1. a kind of electronic automobile-used U-shaped double-stator structure switched reluctance machines, the rotor including bilateral tooth, rotor inside are equipped with coaxial
The inner stator support portion of the heart;Concentric external stator support portion is equipped on the outside of rotor, it is characterised in that: the inner stator support portion
Outer wall is uniformly distributed along the circumference N number of default sub-piecemeal, the external stator support portion inner wall along the circumferential direction uniformly distributed N number of external stator piecemeal, N
For positive even numbers;The default sub-piecemeal and external stator piecemeal are U-shaped structure and opening direction towards rotor, default sub-piecemeal and
The central angle of external stator piecemeal is identical, and default sub-piecemeal and external stator piecemeal are respectively provided with two stator tooths for constituting U-shaped structure,
Concentratred winding is equipped on each stator tooth, the polarity phase of two stator tooths in each default sub-piecemeal or external stator piecemeal
Instead;Two external stator piecemeals diametrically are connected into a phase, and radial two opposite default sub-piecemeals are connected into a phase;Work
Under state, default sub-piecemeal and external stator piecemeal are respectively turned on a phase, this two-phase differs certain space angle α, α > inner stator
The central angle of piecemeal, and it is identical as the adjacent stators tooth polarity on adjacent external stator piecemeal in the default sub-piecemeal of this two-phase.
2. electronic automobile-used U-shaped double-stator structure switched reluctance machines according to claim 1, it is characterised in that: described turn
Attached bag includes rotor body, multiple internal tooths and external tooth, and internal tooth is uniformly distributed along rotor body inside circumference, external tooth circle on the outside of rotor body
Zhou Junbu, internal tooth is identical with external tooth quantity, and the center line of internal tooth and external tooth is located at the radial direction of rotor, adjacent internal tooth and outer
Tooth center line has mechanical angle θ.
3. electronic automobile-used U-shaped double-stator structure switched reluctance machines according to claim 2, it is characterised in that: the machine
Tool angle theta is 1-4 °.
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CN201910819153.1A CN110429778B (en) | 2019-08-31 | 2019-08-31 | U-shaped switched reluctance motor with double-stator structure for electric vehicle |
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CN110429778B CN110429778B (en) | 2022-08-02 |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111064332A (en) * | 2020-01-08 | 2020-04-24 | 武汉理工大学 | Bilateral Halbach alternate pole type permanent magnet vernier motor |
CN111181271A (en) * | 2020-02-25 | 2020-05-19 | 山东大学 | Double-stator staggered rotor tooth magnetic flux switching type permanent magnet motor and electromagnetic equipment |
US20210036591A1 (en) * | 2018-02-08 | 2021-02-04 | Lg Electronics Inc. | Dual rotor-type motor having improved stator structure, and compressor comprising same |
CN112436704A (en) * | 2020-11-30 | 2021-03-02 | 江苏大学 | Radial double-winding switch reluctance motor for electric automobile and power converter thereof |
CN112994535A (en) * | 2021-02-22 | 2021-06-18 | 中国矿业大学 | Novel power converter for double-stator switch reluctance motor |
CN113098218A (en) * | 2021-03-25 | 2021-07-09 | 西安交通大学 | Modularized double-stator block rotor permanent magnet auxiliary switch reluctance motor |
CN113098219A (en) * | 2021-04-11 | 2021-07-09 | 郑州大学 | Hybrid winding doubly-salient rare-earth-free motor for new energy automobile and control strategy thereof |
CN113285570A (en) * | 2021-04-13 | 2021-08-20 | 中国矿业大学 | Double-stator switched reluctance wheel-side motor for intelligent network-connected electric automobile |
WO2021165132A1 (en) * | 2020-02-21 | 2021-08-26 | Bauer Gear Motor GmbH | Reluctance motor having three-phase current, and system |
WO2023123638A1 (en) * | 2021-12-29 | 2023-07-06 | 大富科技(安徽)股份有限公司 | Switched reluctance motor structure, hub motor, and vehicle |
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CN109742873A (en) * | 2018-12-27 | 2019-05-10 | 江苏大学 | A kind of piecemeal magnetic resistant electric motor with double stator switch for electric vehicle |
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JP2009296796A (en) * | 2008-06-05 | 2009-12-17 | Ricchisutoon:Kk | Rotating machine |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210036591A1 (en) * | 2018-02-08 | 2021-02-04 | Lg Electronics Inc. | Dual rotor-type motor having improved stator structure, and compressor comprising same |
CN111064332A (en) * | 2020-01-08 | 2020-04-24 | 武汉理工大学 | Bilateral Halbach alternate pole type permanent magnet vernier motor |
WO2021165132A1 (en) * | 2020-02-21 | 2021-08-26 | Bauer Gear Motor GmbH | Reluctance motor having three-phase current, and system |
CN111181271A (en) * | 2020-02-25 | 2020-05-19 | 山东大学 | Double-stator staggered rotor tooth magnetic flux switching type permanent magnet motor and electromagnetic equipment |
CN111181271B (en) * | 2020-02-25 | 2023-12-19 | 山东大学 | Double-stator misplaced rotor tooth magnetic flux switching type permanent magnet motor and electromagnetic equipment |
CN112436704A (en) * | 2020-11-30 | 2021-03-02 | 江苏大学 | Radial double-winding switch reluctance motor for electric automobile and power converter thereof |
CN112994535A (en) * | 2021-02-22 | 2021-06-18 | 中国矿业大学 | Novel power converter for double-stator switch reluctance motor |
CN113098218A (en) * | 2021-03-25 | 2021-07-09 | 西安交通大学 | Modularized double-stator block rotor permanent magnet auxiliary switch reluctance motor |
CN113098219A (en) * | 2021-04-11 | 2021-07-09 | 郑州大学 | Hybrid winding doubly-salient rare-earth-free motor for new energy automobile and control strategy thereof |
CN113285570A (en) * | 2021-04-13 | 2021-08-20 | 中国矿业大学 | Double-stator switched reluctance wheel-side motor for intelligent network-connected electric automobile |
WO2023123638A1 (en) * | 2021-12-29 | 2023-07-06 | 大富科技(安徽)股份有限公司 | Switched reluctance motor structure, hub motor, and vehicle |
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