CN106981965B - A kind of electric vehicle electrical excitation hub motor - Google Patents
A kind of electric vehicle electrical excitation hub motor Download PDFInfo
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- CN106981965B CN106981965B CN201710323838.8A CN201710323838A CN106981965B CN 106981965 B CN106981965 B CN 106981965B CN 201710323838 A CN201710323838 A CN 201710323838A CN 106981965 B CN106981965 B CN 106981965B
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- stator
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- electric vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/227—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- 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)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention proposes a kind of electric vehicle electrical excitation hub motor, belongs to vehicle technology field, including stator core, rotor core, excitation winding, armature winding, stator fixed block, bearing and axis.It is characterized in that, the motor is outer-rotor structure, stator core is fixed on axis, the wheel hub of electric vehicle is fixed in rotor core, for driving electric vehicle.There are 13 uniformly distributed male rotor poles in its rotor core；Fan-shaped stator core shares 6, there is the stator poles of 2 convexs in each stator core, there is non-magnetic stator fixed block between stator core；There is armature slot on the outside of stator fixed block between stator core, there is medial and lateral excitation slot at the both ends of the same stator core, and outside excitation slot is embedded with excitation winding and armature winding, and inside excitation slot is embedded with excitation winding.Technology of the invention can all have four phase inductances, electromotive force all in sinusoidal variations, can effectively reduce Commutation Torque Ripple at any time.
Description
Technical field
The present invention relates to a kind of electric vehicle electrical excitation hub motors, belong to vehicle technology field.
Background technique
The research of magnetic resistance class motor in recent years achieves bigger progress, and research achievement is also applied to electric vehicle drive
Dynamic system, wherein switched reluctance machines are in the application of electric automobiles than wide.Switched reluctance machines structure is simple, firm resistance to
With, there is no winding, magnet steel or slip ring on rotor, efficiency is higher, speed-regulating range width, be suitble to high-speed cruising, be easy to implement four-quadrant
Control.But the disadvantage of switched reluctance machines is that torque pulsation is big, noise is big, needs position sensor, system has non-
Linear characteristic.
On the basis of switched reluctance machines, excitation winding is installed on stator, working principle is different from switched reluctance machines,
Output torque is synthesized by reluctance torque and magnetic torque, and adjusts exciting current and the adjusting of air gap main field can be realized.Electricity
Excitation biconvex electrode hub motor reduces energy loss, is more advantageous to it in the application in electric car field.
Currently, related patents of electronic vehicle electric excitation biconvex electrode electric machine and few, and its related patents is concentrated mainly on
In hub motor main structure and assembly method.Such as the patent of invention of authorization: a kind of electric excitation biconvex electrode electric machine stator punching,
The patent No.: 201410339438.2, a kind of electric excitation biconvex electrode electric machine stator punching is invented, in the inward flange of stator punching
On be evenly distributed with two different groove profiles, the trapezoidal shape of the first groove profile, slot bottom width be greater than width of rebate, second of groove profile
Rectangular, slot bottom width is equal to width of rebate；Slot shoulder is further respectively had between the notch and slot bottom of both groove profiles, slot shoulder is
Fillet protrusion；The first groove profile is spaced apart with second of groove profile.Compared with common punching, the invention design the advantages of be not
It only can reduce cost, and also ensure the performance of motor.There are also such as patent No.s: 201410538070.2 invention is special
Benefit: a kind of bimodulus motor generator, proposing a kind of new coil structure and making motor both can be used as switched reluctance machines mode
Operation, and can be used as electric excitation biconvex electrode electric machine mode operation.Work is in switched reluctance machines mode, hair when the invention is electronic
Work is in electric excitation biconvex electrode electric machine mode when electric.
In addition, there are also the patent of some hub-type driving motors, such as the patent of invention of application in applicant 2016: it is a kind of
Electric vehicle composite excitation hub motor, the patent No.: 201610256109.0, proposing realizes the integrated of wheel hub and driving motor
Composite excitation hub motor, the motor have two-sided tray type structure, the specific power of motor can be improved.Similar, the hair of authorization
Bright patent: hub motor, the patent No.: 200480021062.5, also disclose path, the structure of a kind of achievable hub motor
Compact hub motor.
On this basis, inventor conducts in-depth research the number of poles and pole embrace of multiphase double salient-pole electric machine,
Deliver that " multiphase Fielding-winding doubly salient generator number of poles is ground with pole embrace " Proceedings of the CSEE " the 7th phase in 2015
Study carefully " academic paper, it is indicated that the ratio between stator poles and rotor number of poles should be m/ (m+1) or m/ (m-1).
As prior art, traditional double salient-pole electric machine has biggish torque pulsation, what Commutation Torque Ripple generated
Principle visible " Proceedings of the CSEE " the 27th phase paper " the electric excitation biconvex electrode electric machine angle based on half-bridge converter in 2011
Spend Optimal Control Strategy ".With going deep into for research, still there is biggish commutation torque in the technology that inventor has found that early period proposes
Pulsation, therefore be badly in need of studying a kind of lesser electric vehicle motor of Commutation Torque Ripple.
Based on this, the present invention proposes that a kind of motor that back-emf is sine wave to reduce Commutation Torque Ripple, is provided simultaneously with
Polyphase windings are to improve the reliability of system.The ratio between original double salient-pole electric machine number of poles of technological break-through of the invention should be m/ (m+
1) or the technical prejudice that m/ (m-1), therefore creative.
Summary of the invention
Technical problem to be solved: a kind of a kind of highly reliable, manageable electric vehicle electrical excitation hub motor is provided.
In order to achieve the above functions, the technical solution adopted by the present invention is that:
A kind of electric vehicle electrical excitation hub motor, including stator core, rotor core, excitation winding, armature winding, stator
Fixed block, bearing and axis, it is characterised in that:
The electric vehicle electrical excitation hub motor is outer-rotor structure, and stator core is fixed on axis, and rotor core is in axis
It can be pivoted under the action of holding；The wheel hub of electric vehicle is fixed in rotor core, for driving electric vehicle；
There are 13 uniformly distributed male rotor poles in the rotor core；
Fan-shaped stator core shares 6, there is the stator poles of 2 convexs, all 12 convexs in each stator core
Stator poles it is along the circumferential direction uniformly distributed；
There is stator fixed block between 6 stator cores, stator fixed block is non-magnetic；
There is armature slot on the outside of stator fixed block between stator core；
Have between two stator poles of the same stator core outside excitation slot, outside excitation slot be embedded with excitation winding and
Armature winding；
There is inside excitation slot on the inside of each stator core, inside excitation slot is embedded with excitation winding；
Excitation winding is moved into from the outside excitation slot of stator core, then is laid out from inside excitation slot；All excitation windings
Coiling direction is identical；
The armature winding of centralization is wound in each stator poles, adjacent armature winding is around to opposite.
A kind of electric vehicle electrical excitation hub motor as described above, it is characterised in that: along the circumferential direction every 3 adjacent electricity
Pivot windings in series, 3 armature winding are composed in series a phase armature winding.
A kind of electric vehicle electrical excitation hub motor as described above, it is characterised in that: the extremely oblique pole structure of rotor.
A kind of electric vehicle electrical excitation hub motor as described above, it is characterised in that: the pole embrace of rotor pole is 0.5.
The beneficial effects of the present invention are:
A kind of 1 electric vehicle electrical excitation hub motor of the invention has four phase inductances, electromotive force at any time and is all being in
Sinusoidal variations can effectively reduce Commutation Torque Ripple；
2 machine windings of the invention are all centralized winding, and internal resistance is small, high-efficient；
3 hub motors are combined with double salient-pole electric machine technology, can be directly driven electric vehicle operation, be improved efficiency；
4 rotors are salient-pole structure, no excitation winding, reliable operation；
Four phase stator winding of 5 double salient-pole electric machines of the invention can work at the same time, and have higher fault-tolerant operation ability
And reliability.
It is noted that number of poles of the invention is not the On The Choice in a finite value, but tradition is set
A kind of breakthrough that meter theory is confined, overcomes the technology prejudice in terms of traditional double salient-pole electric machine number of poles.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is a kind of electric vehicle electrical excitation hub motor transverse direction schematic cross-sectional view of the present invention.Wherein, 1, rotor iron
The heart, 2, stator core, 3, stator fixed block, 4, axis, 5, excitation winding, 6, armature winding.
Fig. 2 is a kind of each coil vector star graph of electric vehicle electrical excitation hub motor of the present invention.Wherein A1, A2 and A3 distinguish
Indicate that first coil of A phase, second coil and third coil, B1, B2 and B3 respectively indicate B phase first coil, second
A coil and third coil, C1, C2 and C3 respectively indicate first coil of C phase, second coil and third coil, D1,
D2 and D3 respectively indicates first coil of D phase, second coil and third coil.
Fig. 3 is a kind of each phase winding vector star graph of electric vehicle electrical excitation hub motor of the present invention.Wherein A1, A2 and A3 points
Not Biao Shi first coil of A phase, second coil and third coil, B1, B2 and B3 respectively indicate first coil of B phase,
Two coils and third coil, C1, C2 and C3 respectively indicate first coil of C phase, second coil and third coil,
D1, D2 and D3 respectively indicate first coil of D phase, second coil and third coil.
Fig. 4 is a kind of electric vehicle electrical excitation hub motor vertical profile structure chart of the present invention.Wherein, 1, rotor core, 2, stator
Iron core, 4, axis, 6, armature winding, 7, bearing.
Fig. 5 is a kind of electric vehicle electrical excitation hub motor back-emf figure of the present invention.
Specific embodiment
The present invention provides a kind of electric vehicle electrical excitation hub motor, to keep technical solution of the present invention and effect more clear
It is Chu, clear, and referring to attached drawing and give an actual example that the present invention is described in more detail.It should be appreciated that described herein specific
Implement to be not intended to limit the present invention only to explain the present invention.
Fig. 1 is a kind of electric vehicle electrical excitation hub motor transverse direction schematic cross-sectional view of the present invention.As shown, a kind of electricity
Motor-car electrical excitation hub motor is fixed by stator core (2), rotor core (1), excitation winding (5), armature winding (6), stator
Block (3), bearing and axis (4) composition.The electric vehicle electrical excitation hub motor is outer-rotor structure, and stator core (2) is fixed on
On axis (4), rotor core (1) can rotate under the action of bearing around axis (4)；The wheel of electric vehicle is fixed in rotor core
Hub, for driving electric vehicle.
There are 13 uniformly distributed male rotor poles in the rotor core, fan-shaped stator core shares 6, each stator
There are the stator poles of 2 convexs on iron core (2), the stator poles of all 12 convexs are along the circumferential direction uniformly distributed.6 stator cores (2)
Between have stator fixed block (3), stator fixed block (3) is non-magnetic.Have on the outside of stator fixed block (3) between stator core (2)
Armature slot, there is outside excitation slot between two stator poles of the same stator core (2), and outside excitation slot is embedded with excitation winding
(5) and armature winding (6)；There is inside excitation slot on the inside of each stator core (2), inside excitation slot is embedded with excitation winding (5).
Excitation winding (5) is moved into from the outside excitation slot of stator core (2), then is laid out from inside excitation slot, all excitation windings (5)
Coiling direction is identical.The armature winding (6) of centralization is wound in each stator poles, adjacent armature winding (6) is around to opposite.Edge
Circumferencial direction every 3 adjacent armature winding (6) series connection, 3 armature winding (6) are composed in series a phase armature winding.
Fig. 2 is a kind of each coil vector star graph of electric vehicle electrical excitation hub motor of the present invention.
Fig. 3 is a kind of each phase winding vector star graph of electric vehicle electrical excitation hub motor of the present invention.As shown, circumferentially
The adjacent armature winding series connection in every three of direction, 3 armature winding are composed in series a phase armature winding.
Fig. 4 is a kind of electric vehicle electrical excitation hub motor vertical profile structure chart of the present invention.The electric vehicle electrical excitation wheel hub electricity
Machine is outer-rotor structure, and stator core (2) is fixed on axis (4), and rotor core (1) can be around axis under the action of bearing (7)
(4) it rotates；The wheel hub of electric vehicle is fixed in rotor core (1), for driving electric vehicle.
Fig. 5 is a kind of electric vehicle electrical excitation hub motor back-emf figure of the present invention.It can be seen that each phase winding apart from one another by
90 ° of electrical angles, and each phase induced potential is in sinusoidal.
Below to a kind of explanation of electric vehicle electrical excitation hub motor progress working principle proposed by the present invention.
When aliving on a kind of electric vehicle electrical excitation hub motor excitation winding (5) of the present invention, at this time in electricity
Magnetizing field can be established inside machine, is formed by stator yoke, stator poles, air gap, rotor core (1), air gap, stator core (2)
Closed magnetic circuit.Motor rotor position is detected by position sensor, after position signal is conveyed to controller, controller controls function
The respective switch pipe of rate converter, the winding risen to inductance pass to forward current, pass to negative sense electricity to the winding that inductance declines
External output torque can be realized in stream, motor.
Pass through a kind of each coil vector star graph of attached brushless DC motor of electric vehicle shown in Fig. 3, it can be seen that each phase of motor
Back-emf apart from one another by 90 ° of electrical angles, and any one phase of this motor can complete period ON operation, i.e. this motor can be with four
Be powered operation when identical, therefore fault-tolerant ability with higher.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (4)
1. a kind of electric vehicle electrical excitation hub motor, including stator core, rotor core, excitation winding, armature winding, stator are solid
Determine block, bearing and axis, it is characterised in that: the electric vehicle electrical excitation hub motor is outer-rotor structure, and stator core is fixed on
On axis, rotor core can be pivoted under the action of bearing；The wheel hub of electric vehicle is fixed in rotor core, for driving
Electric vehicle；There are 13 uniformly distributed male rotor poles in the rotor core；Fan-shaped stator core shares 6, each stator
There are the stator poles of 2 convexs on iron core, the stator poles of all 12 convexs are along the circumferential direction uniformly distributed；Have between 6 stator cores
Stator fixed block, stator fixed block are non-magnetic；There is armature slot on the outside of stator fixed block between stator core；The same stator iron
There is outside excitation slot between two stator poles of the heart, outside excitation slot is embedded with excitation winding and armature winding；Each stator iron
There is inside excitation slot on the inside of the heart, inside excitation slot is embedded with excitation winding；Excitation winding from the outside excitation slot of stator core around
Into, then lay out from inside excitation slot；The coiling direction of all excitation windings is identical；The armature of centralization is wound in each stator poles
Winding, adjacent armature winding is around to opposite.
2. a kind of electric vehicle electrical excitation hub motor as described in claim 1, it is characterised in that: along the circumferential direction every 3 phases
Adjacent armature winding series connection, 3 armature winding are composed in series a phase armature winding.
3. a kind of electric vehicle electrical excitation hub motor as described in claim 1, it is characterised in that: the extremely oblique pole structure of rotor.
4. a kind of electric vehicle electrical excitation hub motor as described in claim 1, it is characterised in that: the pole embrace of rotor pole is
0.5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323838.8A CN106981965B (en) | 2017-05-10 | 2017-05-10 | A kind of electric vehicle electrical excitation hub motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323838.8A CN106981965B (en) | 2017-05-10 | 2017-05-10 | A kind of electric vehicle electrical excitation hub motor |
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| CN106981965A CN106981965A (en) | 2017-07-25 |
| CN106981965B true CN106981965B (en) | 2019-04-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370291B (en) * | 2017-08-23 | 2019-10-18 | 东阳市俊华电器销售有限公司 | A kind of magnetic control wheel based on electromagnetic propulsion system |
| CN114499001B (en) * | 2022-02-28 | 2023-10-31 | 上海交通大学 | Ring winding reluctance motor, system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005836A (en) * | 2010-12-10 | 2011-04-06 | 上海电机学院 | Magnetic flow switching dual-salient pole motor with reinforced outer rotor magnetic field |
| JP2014180085A (en) * | 2013-03-13 | 2014-09-25 | Honda Motor Co Ltd | Switched reluctance motor |
| CN104242521A (en) * | 2014-10-14 | 2014-12-24 | 山东理工大学 | Double-mode electric power generator |
| CN105914981A (en) * | 2016-04-25 | 2016-08-31 | 山东理工大学 | Electric vehicle hybrid excitation hub motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7999432B2 (en) * | 2007-08-17 | 2011-08-16 | Kura Laboratory Corporation | Field controllable rotating electric machine system with magnetic excitation part |
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2017
- 2017-05-10 CN CN201710323838.8A patent/CN106981965B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005836A (en) * | 2010-12-10 | 2011-04-06 | 上海电机学院 | Magnetic flow switching dual-salient pole motor with reinforced outer rotor magnetic field |
| JP2014180085A (en) * | 2013-03-13 | 2014-09-25 | Honda Motor Co Ltd | Switched reluctance motor |
| CN104242521A (en) * | 2014-10-14 | 2014-12-24 | 山东理工大学 | Double-mode electric power generator |
| CN105914981A (en) * | 2016-04-25 | 2016-08-31 | 山东理工大学 | Electric vehicle hybrid excitation hub motor |
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