CN107846126A - Electric automobile directly drives wheel hub motor - Google Patents
Electric automobile directly drives wheel hub motor Download PDFInfo
- Publication number
- CN107846126A CN107846126A CN201710989991.4A CN201710989991A CN107846126A CN 107846126 A CN107846126 A CN 107846126A CN 201710989991 A CN201710989991 A CN 201710989991A CN 107846126 A CN107846126 A CN 107846126A
- Authority
- CN
- China
- Prior art keywords
- stator
- wheel hub
- core
- sub
- stator core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- 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
-
- 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
-
- 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
Abstract
Electric automobile directly drives wheel hub motor, belongs to vehicle technology field, is made up of axle, wheel hub, Exciting Windings for Transverse Differential Protection, armature winding, rotor core, stator core and bearing；There are 9 rotor tooths towards axle center extension in rotor core；Stator core is made up of 4 uniform sub- stator cores of " Contraband " font；There are three stator tooths at the both ends of every sub- stator core；All stator space widths are equal and are presented axially in rotor core both sides；Yoke portion coiling of the Exciting Windings for Transverse Differential Protection around a sub- stator core；A centralized armature winding is wound with each stator tooth.This technology effectively realizes the integrated design of wheel hub and motor, winding is easy to radiate, and the advantages of can give full play to centralized excitation, has higher application value on electric car.
Description
Technical field
The present invention relates to a kind of electric automobile directly to drive wheel hub motor, belongs to vehicle technology field.
Background technology
Electric car is the vehicle assembly travelled using driven by power, compared with using fuel engines as the vehicle of power source,
Electric car has the advantages of energy consumption is low, pollution is small, and electric car generally use In-wheel motor driving, the performance of wheel hub motor determines
Electric car normally travel and grade climbing performance.The maximum feature of wheel hub motor is that power, transmission and brake apparatus are all incorporated into wheel
In hub, vehicle mechanical part is greatly simplified, alleviate the weight of electric automobile, while the design of electric automobile is easier in fact
Existing modularization and personalization.
Number of patent application is 201310360010.1：Electric automobile directly drives wheel hub motor and its electric automobile.This application electricity
Machine is five phase structure reluctance machines, can effectively reduce torque pulsation, lifting operating efficiency, but it uses permanent magnet motor structure
Space availability ratio is reduced compared with flat disc type electric machine.Patent No. 201310220075.6 proposes a kind of fork vehicle wheel hub
Motor, its major defect are intensity aspect unreasonable, the temperature of motor and the vibrations of its cooling system and rotor axis of electric
The service life of permanent magnet of permanent magnet motor will be had a strong impact on.
The patent of some hub-type motors, such as the patent application that applicant proposes：It is 201610256109.0 electronic
Car composite excitation wheel hub motor, it is proposed that realize the integrated composite excitation wheel hub motor of wheel hub and motor, the motor has
Two-sided tray type structure, the specific power of motor can be improved.The number of applying for a patent：201710165532.4 the electric wheel of central excitation
Hub motor, when the motor is as generator operation, regulation exciting current is the output voltage under controllable different rotating speeds, can be returned
Receiving braking energy simultaneously gives electromobile battery charging, during as motor running, adjust the size of exciting current and armature supply,
The output torque of the wheel hub motor can be controlled.
The application wheel hub motor drives mode using straight, is to avoid setting using transmissions such as driving belts the advantages of direct driving motor
It is standby, and these transmission parts exactly higher part of fault rate in system, so motor uses straight drive system, have lower
Fault rate.In addition, this technology, which directly drives wheel hub motor, effectively realizes the integrated design of wheel hub and motor, production is reduced
Cost, improve space availability ratio.
The content of the invention
In order to invent it is a kind of straight drive wheel hub motor, effectively realize the integrated of motor and brake disc, take following technical side
Case：
Electric automobile directly drives wheel hub motor, it is characterised in that：By axle, wheel hub, Exciting Windings for Transverse Differential Protection, armature winding, rotor core, stator
Unshakable in one's determination and bearing composition.
Wheel hub is mounted on an axle by bearing and can be pivoted, and rotor core is fixed with the inside circumference of wheel hub,
There are 9 rotor tooths towards axle center extension in rotor core.
Stator core is fixed on the centre of axle, and stator core is made up of 4 uniform sub- stator cores of " Contraband " font, and son is fixed
Sub middle yoke portion unshakable in one's determination is parallel to axis；There are three stator tooths at the both ends of every sub- stator core, and the side of stator tooth is in
It is fan-shaped；All stator space widths are equal and are presented axially in rotor core both sides；Stator core being capable of axial magnetic conduction.
Exciting Windings for Transverse Differential Protection is around the yoke portion coiling of a sub- stator core, and all Exciting Windings for Transverse Differential Protection are around to identical；On each stator tooth
It is wound with a centralized armature winding, the armature winding at same sub- stator core both ends is around to opposite.
Electric automobile as described above directly drives wheel hub motor, it is characterised in that：Rotor tooth fan angle is equal to 20 degree, armature
Winding can be divided into four phases.
Electric automobile directly drives wheel hub motor as mentioned, it is characterised in that：The stator tooth at same sub- stator core both ends
7.5 degree are differed in a circumferential direction.
The beneficial effects of the invention are as follows：
1 each phase winding is completely isolated, and Exciting Windings for Transverse Differential Protection and armature winding isolation, short circuit current will not cause the propagation of failure, improve
Reliability；
The machine winding of 2 present invention is all centralized winding, and internal resistance is small, efficiency high, and Exciting Windings for Transverse Differential Protection and electromagnetism winding are easy to radiate；
3 realize brake disc and wheel hub motor rotor core is combined into one, and alleviate weight, save space；
4 stator core magnetic conductive areas are big, and in the case where the magnetic of same saturation is close, the technology magnetic flux of the application is big, and back-emf is high, motor
Power is big；
5 is ripe according to the work of switched reluctance machines principle, control technology.
Brief description of the drawings
Fig. 1 is the sectional side elevation that the technology of the present invention electric car directly drives wheel hub motor.Wherein, 1 wheel hub, 2 stator cores, 3 excitations
Winding, 4 armature winding, 5 rotor cores, 6 axles, 7 bearings；
Fig. 2 is the cross sectional view of stator core.Wherein, 2 stator cores, 3 Exciting Windings for Transverse Differential Protection, 4 armature winding, 6 axles；
Fig. 3 is rotor core schematic diagram.Wherein, 5 rotor core.
Embodiment
Fig. 1 is the sectional side elevation that the technology of the present invention electric car directly drives wheel hub motor.Wherein, 1 wheel hub, 2 stator cores, 3 excitations
Winding, 4 armature winding, 5 rotor cores, 6 axles, 7 bearings；Electric automobile directly drives wheel hub motor, it is characterised in that：Wheel hub passes through axle
Hold and be mounted on an axle and can be pivoted, rotor core is fixed with the inside circumference of wheel hub, there are 9 in rotor core towards axle
The rotor tooth of heart extension.
Stator core is fixed on the centre of axle, and stator core is made up of 4 uniform sub- stator cores of " Contraband " font, and son is fixed
Sub middle yoke portion unshakable in one's determination is parallel to axis；There are three stator tooths at the both ends of every sub- stator core, and the side of stator tooth is in
It is fan-shaped；All stator space widths are equal and are presented axially in rotor core both sides；Stator core being capable of axial magnetic conduction.
Exciting Windings for Transverse Differential Protection is around the yoke portion coiling of a sub- stator core, and all Exciting Windings for Transverse Differential Protection are around to identical；On each stator tooth
It is wound with a centralized armature winding, the armature winding at same sub- stator core both ends is around to opposite.
Rotor tooth fan angle is equal to 20 degree, and armature winding can be divided into four phases.Determine at same individual sub- stator core both ends
Sub- tooth differs 7.5 degree in a circumferential direction.
Fig. 2 is the cross sectional view of stator core.Wherein, 2 stator cores, 3 Exciting Windings for Transverse Differential Protection, 4 armature winding, 6 axles；Stator core
The centre of axle is fixed on, stator core is made up of 4 uniform sub- stator cores of " Contraband " font, the yoke portion among sub- stator core
Parallel to axis；There are three stator tooths at the both ends of every sub- stator core, and the side of stator tooth is in sector；All stator tooths
Spacing is equal and is presented axially in rotor core both sides；Stator core being capable of axial magnetic conduction.
Fig. 3 is rotor core schematic diagram.Wherein, 5 rotor core.Rotor core is fixed with the inside circumference of wheel hub, is turned
There are 9 rotor tooths towards axle center extension on sub- iron core.
Its operation principle：Because the electrical excitation magnetic pole and armature pole of the present invention align in the axial direction, therefore work as rotor core
When the part of energy magnetic conduction is alignd with armature pole, the magnetic resistance minimum of the armature pole linkage, armature winding magnetic linkage are maximum；Work as rotor core
Fan-shaped pylone alignment armature pole when, the magnetic resistance of the armature pole linkage is maximum, armature winding magnetic linkage is minimum.
When the part of rotor core energy magnetic conduction moves closer to armature pole, the mutual inductance of the phase armature winding and Exciting Windings for Transverse Differential Protection exists
Increase；The self-induction of the phase armature winding is also increasing.When rotor core energy magnetic conduction is when being partially disengaged armature pole, the phase armature around
The mutual inductance of group and Exciting Windings for Transverse Differential Protection is increasing；The self-induction of the phase armature winding is also increasing.
Because the magnetic linkage of the mutual inductance of the application armature winding and Exciting Windings for Transverse Differential Protection, armature winding linkage is also constantly becoming
Change, provide excitation field and movable rotor iron core so if being powered to Exciting Windings for Transverse Differential Protection, then armature winding can produce induction electric
Gesture.Here it is principle of the application motor as generator operation.
When the application motor is as motor running, the phase winding risen to self-induction passes to forward current, then the winding
Positive torque can be produced；The phase winding declined to self-induction passes to forward current, then the winding can produce negative torque.
Claims (3)
1. electric automobile directly drives wheel hub motor, it is characterised in that：
It is made up of axle, wheel hub, Exciting Windings for Transverse Differential Protection, armature winding, rotor core, stator core and bearing；
Wheel hub is mounted on an axle by bearing and can be pivoted, and rotor core, rotor are fixed with the inside circumference of wheel hub
There are 9 rotor tooths towards axle center extension on iron core；
Stator core is fixed on the centre of axle, and stator core is made up of 4 uniform sub- stator cores of " Contraband " font, sub- stator iron
Yoke portion between in the heart is parallel to axis；There are three stator tooths at the both ends of every sub- stator core, and the side of stator tooth is in sector；
All stator space widths are equal and are presented axially in rotor core both sides；
Stator core being capable of axial magnetic conduction；
Exciting Windings for Transverse Differential Protection is around the yoke portion coiling of a sub- stator core, and all Exciting Windings for Transverse Differential Protection are around to identical；
It is wound with a centralized armature winding on each stator tooth, the armature winding at same sub- stator core both ends is around to phase
Instead.
2. electric automobile as claimed in claim 1 directly drives wheel hub motor, it is characterised in that：
Rotor tooth fan angle is equal to 20 degree, and armature winding can be divided into four phases.
3. electric automobile as claimed in claim 1 directly drives wheel hub motor, it is characterised in that：
The stator tooth at same sub- stator core both ends differs 7.5 degree in a circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989991.4A CN107846126B (en) | 2017-10-23 | 2017-10-23 | Electric car directly drives hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989991.4A CN107846126B (en) | 2017-10-23 | 2017-10-23 | Electric car directly drives hub motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107846126A true CN107846126A (en) | 2018-03-27 |
| CN107846126B CN107846126B (en) | 2019-11-12 |
Family
ID=61661540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710989991.4A Active CN107846126B (en) | 2017-10-23 | 2017-10-23 | Electric car directly drives hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107846126B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667166A (en) * | 2018-04-08 | 2018-10-16 | 江苏大学 | A kind of vibration damping switching magnetic-resistance wheel hub motor |
| WO2021254196A1 (en) * | 2020-06-19 | 2021-12-23 | 东莞市本末科技有限公司 | Power wheel using direct drive motor and cleaning robot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177746B1 (en) * | 1999-10-21 | 2001-01-23 | Christopher N. Tupper | Low inductance electrical machine |
| CN103051136A (en) * | 2011-08-09 | 2013-04-17 | 株式会社东芝 | Motor |
| CN106712324A (en) * | 2017-03-03 | 2017-05-24 | 南京工业大学 | Stator block type axial flux electrically-excited doubly-salient motor |
-
2017
- 2017-10-23 CN CN201710989991.4A patent/CN107846126B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177746B1 (en) * | 1999-10-21 | 2001-01-23 | Christopher N. Tupper | Low inductance electrical machine |
| CN103051136A (en) * | 2011-08-09 | 2013-04-17 | 株式会社东芝 | Motor |
| CN106712324A (en) * | 2017-03-03 | 2017-05-24 | 南京工业大学 | Stator block type axial flux electrically-excited doubly-salient motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667166A (en) * | 2018-04-08 | 2018-10-16 | 江苏大学 | A kind of vibration damping switching magnetic-resistance wheel hub motor |
| CN108667166B (en) * | 2018-04-08 | 2020-03-31 | 江苏大学 | Damping switch reluctance hub motor |
| WO2021254196A1 (en) * | 2020-06-19 | 2021-12-23 | 东莞市本末科技有限公司 | Power wheel using direct drive motor and cleaning robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107846126B (en) | 2019-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181224 Address after: 266000 Wang Siwenzhuan, Department of Logistics, Shandong Vocational College of Foreign Trade, 201 Jufeng Road, Licang District, Qingdao City, Shandong Province Applicant after: Shi Zhengqi Address before: 255090 Karen garden, Ma Shang Town, Zhangdian District, Zibo City, Zibo, Shandong 34, 419 Applicant before: Shi Liwei |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191011 Address after: 255100 Zichuan Economic Development Zone, Shandong, Zibo Applicant after: Jun Tang Ling Ou, Shandong Automobile Manufacturing Co., Ltd. Address before: 266000 Wang Siwenzhuan, Department of Logistics, Shandong Vocational College of Foreign Trade, 201 Jufeng Road, Licang District, Qingdao City, Shandong Province Applicant before: Shi Zheng Qi |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |