CN105914982B - A kind of electric wheel hub of bilateral magnetic circuit - Google Patents
A kind of electric wheel hub of bilateral magnetic circuit Download PDFInfo
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- CN105914982B CN105914982B CN201610256116.0A CN201610256116A CN105914982B CN 105914982 B CN105914982 B CN 105914982B CN 201610256116 A CN201610256116 A CN 201610256116A CN 105914982 B CN105914982 B CN 105914982B
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- wheel hub
- stator
- rotor pole
- armature winding
- stator poles
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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
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
- H02K21/046—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with rotating permanent magnets and stationary field winding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A kind of electric wheel hub of bilateral magnetic circuit is made of wheel hub, axis, two sets of rotor poles, two sets of stator poles, two sets of armature winding, stator core, permanent magnet, wheel hub cover and bearing.Wheel hub cover and wheel hub can be pivoted, so as to be rotated with motor car wheel.Stator core is fixed on the centre of axis, and the axial both sides of stator core are integrally fixed at two sets of rotor poles on wheel hub respectively.There are the fan-shaped stator poles protruded in the end face of stator core towards rotor pole.Armature winding is wound in each stator poles.There are one magnet isolation tank in stator core between every three stator poles, there are one the permanent magnets of radial magnetizing between the trench bottom of two magnet isolation tanks.The technology of the present invention realizes the electric wheel hub design that permanent magnet and armature winding are all located on stator, and rotor structure is simple, reliable operation；All there be one layer of air gap in two end faces of motor, and contact surface is big between rotor, therefore motor specific power is high.
Description
Technical field
The present invention relates to a kind of electric wheel hubs of bilateral magnetic circuit, belong to vehicle technology field.
Background technology
In recent years, electric vehicle has gradually been received as a kind of environmental protection, the energy-efficient vehicles by consumers in general, nothing
By still foreign countries, the sales volume of electric vehicle worldwide are also increasing year by year at home.
Motor and transmission device are all integrated into wheel hub by electric wheel hub, can be significantly simple by the running part of electric vehicle
Change, this is first advantage of wheel hub motor.The second advantage of wheel hub motor can be achieved on the flexile design of automobile,
Wheel hub motor has the characteristic that single wheel independently drives, therefore either forerunner, rear-guard or 4 wheel driven form, it can
It more easily realizes, is implemented on the vehicle that full-time four-wheel drive drives in electric wheel hub very easy.In view of above-mentioned analysis, grinds
Send out high torque (HT) a kind of, high power density electric wheel hub is highly desirable.
In similar patent, grant number is 201010190582.6 application for a patent for invention：Wheel hub of electric bicycle,
A kind of electric wheel hub with external stator inner rotor core is proposed, the stator of the electric wheel hub is fixed on hub shell inner wall simultaneously
It can be rotated together with hub shell, rotor is connected with planet gear reducing mechanism.
The mandate patent of invention of Patent No. 201110182371.2：A kind of electric wheel hub, it is proposed that one kind includes coaxial
The motor of line setting and the wheel hub of composite structure, be mainly used for supporting motor and wheel hub be coaxially set and be fixed to each other the
One semiaxis and the second semiaxis, the electric wheel hub for motor power to be passed to the gear train assembly of wheel hub.The gear drive
System is equipped with the automatically controlled gearshift of two gears, and structure is complex.Using tray type structure motor at present there are also research into
Fruit has Southeast China University to obtain the patent authorized than more typical：A kind of bimorph transducer disc type mixed excitation electric machine, the patent No.：
201310301385.0, it is proposed that a kind of disc type mixed excitation electric machine for including 12 U shape stator cores, the U shape stators
Iron core and permanent magnet（6）It alternately places and forms stator disk, permanent magnet along the circumferential direction alternately magnetizes.
Applicant not yet retrieves the report in relation to the wheel hub motor using the bilateral magnetic circuit with tray type structure at present.
The technology of the present invention realizes the electric wheel hub design that permanent magnet and armature winding are all located on stator, rotor structure
Simply, reliable operation；Disc type electric machine can efficiently use the characteristics of hub diameter is big, axial length is short, improve the work(of wheel hub motor
Rate；All there be one layer of air gap in two end faces of motor, the excitation of bilateral magnetic circuit are realized using a set of permanent magnet, and rotor is indirectly
Contacting surface is big, therefore motor specific power is high.
Invention content
In order to invent a kind of wheel hub motor of the bilateral magnetic circuit with tray type structure, the drive of reliably high power density is realized
Dynamic, the present invention adopts the following technical scheme that：
A kind of electric wheel hub of bilateral magnetic circuit, it is characterised in that：
By wheel hub (1), axis (12), the first rotor pole (2), the first stator poles (3), the first armature winding (4), stator core
(5), permanent magnet (6), the second stator poles (7), the second armature winding (8), the second rotor pole (9), wheel hub cover (10) and bearing
(11) it forms；
Wheel hub cover (10) is fixed on the port of wheel hub (1), and the centre bore of wheel hub cover (10) and wheel hub (1) fixes one respectively
A bearing (11), wheel hub cover (10) and wheel hub (1) can be rotated around axis (12), so as to be rotated with motor car wheel；
The centre of axis (12) is fixed in the stator core (5) of disc type, the axial both sides of stator core (5) are respectively
The first rotor pole (2) being fixed on wheel hub (1) and the second rotor pole (9) being fixed on wheel hub cover (10)；
Stator core (5) has annular the first stator poles (3) protruded of fan, Mei Ge on one side towards the first rotor pole (2)
All around there are one the first armature winding (4) in one stator poles (3)；Stator core (5) has fan on one side towards the second rotor pole (9)
The second stator poles (7) of annular protrusion, around there are one the second armature winding (8) on each second stator poles (7)；First armature
Winding (4) and the second armature winding (8) are all centralized winding；
There are one radially distributed magnet isolation tank in stator core (5) between every three the first stator poles (3), two every
There are one permanent magnets (6), permanent magnet (6) between the trench bottom of magnetic slot to be parallel to axis (12) and be filled along the radial direction of stator core (5)
Magnetic, the magnetizing direction of adjacent permanent magnet (6) are opposite；
Three the first armature winding (4) in the first stator poles (3) between two magnet isolation tanks are around to identical；Two every
Three the second armature winding (8) in the second stator poles (7) between magnetic slot are around to identical；The first of one magnet isolation tank both sides is fixed
The first armature winding (4) on sub- pole (3) is around to opposite；The second armature in second stator poles (7) on one magnet isolation tank both sides
Winding (8) is around to opposite.
A kind of electric wheel hub of bilateral magnetic circuit as described above, it is characterised in that：Wheel hub (1), the first rotor pole (2),
One stator poles (3), stator core (5), the second stator poles (7), the second rotor pole (9) and wheel hub cover (10) are all No yield point magnetic conduction
Material.
A kind of electric wheel hub of bilateral magnetic circuit as described above, it is characterised in that：The first rotor pole (2) and the second rotor pole
(9) number of poles is equal；First stator poles (3) and the second stator poles (7) are aligned in a circumferential direction；If two neighboring rotor pole it
Between angle for rotor pole elongation, the first rotor pole (2) and the second rotor pole (9) differ half of rotor polar distance in a circumferential direction
Angle.
Beneficial effects of the present invention are as follows：
(1) permanent magnet and armature winding are all located at the electric wheel hub design on stator, and rotor structure is simple, reliable operation；
(2) all there be one layer of air gap in two end faces of motor, and the excitation of bilateral magnetic circuit, and fixed turn are realized using a set of permanent magnet
Contact surface is big between son, therefore motor specific power is high；(3) all using concentratred winding, end is shorter for armature winding and Exciting Windings for Transverse Differential Protection,
Copper loss is smaller；
(4) disc type electric machine axial length is small, substantially reduces motor volume so that entire wheel hub structure is compacter, convenient
Install electric machine controller additional on hub shell.
Description of the drawings
Fig. 1 is a kind of sectional side elevation of the electric wheel hub of bilateral magnetic circuit of the present invention.Wherein：1st, wheel hub, 2, the first rotor pole, 3,
First stator poles, the 4, first armature winding, 5, stator core, 6, permanent magnet, the 7, second stator poles, the 8, second armature winding, 9,
Second rotor pole, 10, wheel hub cover, 11, bearing, 12, axis.
Fig. 2 is a kind of electric wheel hub stator winding side view of bilateral magnetic circuit of the present invention, wherein：3rd, the first stator poles, 4,
First armature winding, 5, stator core, 6, permanent magnet, 12, axis.
Fig. 3 is a kind of electric wheel hub rotor pole side view of bilateral magnetic circuit of the present invention, wherein：1st, wheel hub, 2, the first rotor
Pole, 12, axis.
Fig. 4 is a kind of electric wheel hub fundamental diagram of bilateral magnetic circuit of the present invention.
Specific embodiment
The invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is a kind of sectional side elevation of the electric wheel hub of bilateral magnetic circuit of the present invention.
A kind of electric wheel hub of bilateral magnetic circuit, it is characterised in that：
By wheel hub (1), axis (12), the first rotor pole (2), the first stator poles (3), the first armature winding (4), stator core
(5), permanent magnet (6), the second stator poles (7), the second armature winding (8), the second rotor pole (9), wheel hub cover (10) and bearing
(11) it forms；
Wheel hub cover (10) is fixed on the port of wheel hub (1), and the centre bore of wheel hub cover (10) and wheel hub (1) fixes one respectively
A bearing (11), wheel hub cover (10) and wheel hub (1) can be rotated around axis (12), so as to be rotated with motor car wheel；
The centre of axis (12) is fixed in the stator core (5) of disc type, the axial both sides of stator core (5) are respectively
The first rotor pole (2) being fixed on wheel hub (1) and the second rotor pole (9) being fixed on wheel hub cover (10)；
Stator core (5) has annular the first stator poles (3) protruded of fan, Mei Ge on one side towards the first rotor pole (2)
All around there are one the first armature winding (4) in one stator poles (3)；Stator core (5) has fan on one side towards the second rotor pole (9)
The second stator poles (7) of annular protrusion, around there are one the second armature winding (8) on each second stator poles (7)；First armature
Winding (4) and the second armature winding (8) are all centralized winding.
A kind of electric wheel hub of bilateral magnetic circuit as described above, it is characterised in that：Wheel hub (1), the first rotor pole (2),
One stator poles (3), stator core (5), the second stator poles (7), the second rotor pole (9) and wheel hub cover (10) are all No yield point magnetic conduction
Material.
Fig. 2 is a kind of electric wheel hub stator winding side view of bilateral magnetic circuit of the present invention.
There are one radially distributed magnet isolation tank in stator core (5) between every three the first stator poles (3), two every
There are one permanent magnets (6), permanent magnet (6) between the trench bottom of magnetic slot to be parallel to axis (12) and be filled along the radial direction of stator core (5)
Magnetic, the magnetizing direction of adjacent permanent magnet (6) are opposite.
Three the first armature winding (4) in the first stator poles (3) between two magnet isolation tanks are around to identical；Two every
Three the second armature winding (8) in the second stator poles (7) between magnetic slot are around to identical；The first of one magnet isolation tank both sides is fixed
The first armature winding (4) on sub- pole (3) is around to opposite；The second armature in second stator poles (7) on one magnet isolation tank both sides
Winding (8) is around to opposite.
Fig. 3 is a kind of electric wheel hub rotor pole side view of bilateral magnetic circuit of the present invention.
The number of poles of the first rotor pole (2) and the second rotor pole (9) is equal；First stator poles (3) and the second stator poles (7) exist
It is aligned on circumferencial direction；If the angle between two neighboring rotor pole is rotor pole elongation, the first rotor pole (2) and the second rotor
Pole (9) differs half of rotor pole elongation in a circumferential direction.
Fig. 4 is a kind of electric wheel hub fundamental diagram of bilateral magnetic circuit of the present invention.
The explanation of operation principle is carried out to a kind of electric wheel hub of bilateral magnetic circuit proposed by the present invention below.
Tire is fixed on the outside of circumference of hub.A flattened cylinder, centre bore are formed on the port of wheel hub cover and wheel hub
A bearing is fixed respectively, and wheel hub cover and wheel hub can be pivoted, and so as to which tire be driven to rotate, drive electric vehicle.
This electric wheel hub is worked based on reluctance motor operation principle.
When rotor pole with wherein a phase stator poles are completely overlapped when, the magnetic resistance of the linkage of the armature winding in the phase stator poles
Minimum, magnetic linkage maximum, the self-induction of the phase armature winding are also maximum.When rotor pole is completely disengaged with a phase stator poles, this is extremely electric
The magnetic resistance of pivot winding is maximum, magnetic linkage is minimum, and the self-induction of the phase armature winding is also minimum.
It is powered using three-phase windings of the three-phase bridge inverter to the electric wheel hub of the bilateral magnetic circuit.
Using the electric wheel hub of the bilateral magnetic circuit as motor, the phase winding risen to self-induction passes to forward current, then
The winding can generate positive torque；The phase winding declined to self-induction passes to forward current, then the winding can generate negative
Torque.
A kind of electric wheel hub of bilateral magnetic circuit can also be used as the braking energy of generator operation recycling vehicle.
Claims (3)
1. a kind of electric wheel hub of bilateral magnetic circuit, it is characterised in that：
By wheel hub (1), axis (12), the first rotor pole (2), the first stator poles (3), the first armature winding (4), stator core (5),
Permanent magnet (6), the second stator poles (7), the second armature winding (8), the second rotor pole (9), wheel hub cover (10) and bearing (11) group
Into；
Wheel hub cover (10) is fixed on the port of wheel hub (1), and the centre bore of wheel hub cover (10) and wheel hub (1) fixes an axis respectively
(11) are held,
Wheel hub cover (10) and wheel hub (1) are rotated around axis (12), so as to be rotated with motor car wheel；
The centre of axis (12) is fixed in the stator core (5) of disc type, the axial both sides of stator core (5) are fixed respectively
The first rotor pole (2) on wheel hub (1) and the second rotor pole (9) being fixed on wheel hub cover (10)；
Towards first stator poles (3) for having fan annular protrusion on one side of the first rotor pole (2), each first is fixed for stator core (5)
All around there are one the first armature winding (4) on sub- pole (3)；Stator core (5) has fan annular on one side towards the second rotor pole (9)
The second stator poles (7) of protrusion, around there are one the second armature winding (8) on each second stator poles (7)；First armature winding
(4) and the second armature winding (8) is all centralized winding；
There are one radially distributed magnet isolation tank, two magnet isolation tanks in stator core (5) between every three the first stator poles (3)
Trench bottom between there are one permanent magnet (6), permanent magnet (6) is parallel to axis (12) and along the radial magnetizing of stator core (5), phase
The magnetizing direction of adjacent permanent magnet (6) is opposite；
Three the first armature winding (4) in the first stator poles (3) between two magnet isolation tanks are around to identical；Two magnet isolation tanks it
Between the second stator poles (7) on three the second armature winding (8) around to identical；First stator poles on one magnet isolation tank both sides
(3) the first armature winding (4) on is around to opposite；The second armature winding in second stator poles (7) on one magnet isolation tank both sides
(8) around to opposite.
2. a kind of electric wheel hub of bilateral magnetic circuit as described in claim 1, it is characterised in that：Wheel hub (1), the first rotor pole
(2), the first stator poles (3), stator core (5), the second stator poles (7), the second rotor pole (9) and wheel hub cover (10) are all that nothing takes
To permeability magnetic material.
3. a kind of electric wheel hub of bilateral magnetic circuit as described in claim 1, it is characterised in that：The first rotor pole (2) and second
The number of poles of rotor pole (9) is equal；First stator poles (3) and the second stator poles (7) are aligned in a circumferential direction；If two neighboring turn
Angle between sub- pole is rotor pole elongation, and the first rotor pole (2) and the second rotor pole (9) differ half turn in a circumferential direction
Sub- pole span angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256116.0A CN105914982B (en) | 2016-04-25 | 2016-04-25 | A kind of electric wheel hub of bilateral magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256116.0A CN105914982B (en) | 2016-04-25 | 2016-04-25 | A kind of electric wheel hub of bilateral magnetic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105914982A CN105914982A (en) | 2016-08-31 |
| CN105914982B true CN105914982B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610256116.0A Active CN105914982B (en) | 2016-04-25 | 2016-04-25 | A kind of electric wheel hub of bilateral magnetic circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374645B (en) * | 2016-11-21 | 2019-10-01 | 陕西理工学院 | Three-phase alternating current servo hub motor for electric vehicle |
| CN107294241A (en) * | 2017-07-11 | 2017-10-24 | 杭州壹品电子有限公司 | A kind of disc type hub driven motor used for electric vehicle and electric automobile |
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|---|---|---|---|---|
| CN201041974Y (en) * | 2007-02-07 | 2008-03-26 | 熊巨藩 | A dual protrusion pole axial magnetic field permanent magnetic electromotor |
| CN201808440U (en) * | 2010-05-28 | 2011-04-27 | 华南农业大学 | Multiphase motor wheel driving system |
| CN102142749A (en) * | 2011-03-16 | 2011-08-03 | 潍坊帅克新能源汽车技术有限公司 | Hub assembly of disc type variable-speed motor of electric vehicle |
| CN201947073U (en) * | 2010-12-10 | 2011-08-24 | 上海电机学院 | Radial structure outer-rotor biconvex pole motor |
| CN102223036A (en) * | 2011-06-16 | 2011-10-19 | 东南大学 | Hybrid excitation E-shaped iron core axial magnetic field permanent magnet brushless motor |
| CN103390978A (en) * | 2013-07-18 | 2013-11-13 | 东南大学 | Double-stator disc type mixed excitation motor |
-
2016
- 2016-04-25 CN CN201610256116.0A patent/CN105914982B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041974Y (en) * | 2007-02-07 | 2008-03-26 | 熊巨藩 | A dual protrusion pole axial magnetic field permanent magnetic electromotor |
| CN201808440U (en) * | 2010-05-28 | 2011-04-27 | 华南农业大学 | Multiphase motor wheel driving system |
| CN201947073U (en) * | 2010-12-10 | 2011-08-24 | 上海电机学院 | Radial structure outer-rotor biconvex pole motor |
| CN102142749A (en) * | 2011-03-16 | 2011-08-03 | 潍坊帅克新能源汽车技术有限公司 | Hub assembly of disc type variable-speed motor of electric vehicle |
| CN102223036A (en) * | 2011-06-16 | 2011-10-19 | 东南大学 | Hybrid excitation E-shaped iron core axial magnetic field permanent magnet brushless motor |
| CN103390978A (en) * | 2013-07-18 | 2013-11-13 | 东南大学 | Double-stator disc type mixed excitation motor |
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| CN105914982A (en) | 2016-08-31 |
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