CN103795181A - Wheel hub motor with multiple inner motors connected in parallel - Google Patents
Wheel hub motor with multiple inner motors connected in parallel Download PDFInfo
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- CN103795181A CN103795181A CN201410052295.7A CN201410052295A CN103795181A CN 103795181 A CN103795181 A CN 103795181A CN 201410052295 A CN201410052295 A CN 201410052295A CN 103795181 A CN103795181 A CN 103795181A
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- wheel hub
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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
Abstract
The invention discloses a wheel hub motor with multiple inner motors connected in parallel, and the wheel hub motor can be directly connected with wheels of an electric car. The wheel hub motor with the multiple inner motors connected in parallel comprises a motor shaft and an outer rotor supported on the motor shaft, wherein the multiple inner motors are fixedly arranged inside the outer rotor; rotor shafts of the inner motors are distributed in the circumference of the outer rotor at equal intervals; the rotor shafts of all the inner motors are parallel with the motor shaft; the rotor shaft of each inner motor is fixedly provided with a gear; all the gears are meshed with an inner gear ring; the inner gear ring is fixedly connected with the outer rotor. The mode that the multiple inner motors are connected in parallel is adopted, a gear reducing mechanism is matched at the same time, when each inner motor works, the gear reducing mechanism drives the outer rotor to rotate, the rotation speed of the inner motors can be reduced, and the torque of the wheel hub motor is improved; meanwhile, the number of the inner motors which work simultaneously is controllable, so that the wheel hub motor meets the requirement of the electric car under different working conditions, and the dynamic property and the economical efficiency of the electric car are improved.
Description
Technical field
The present invention relates to a kind of motor, relate in particular to a kind of directly wheel hub motor of connecting electric automobile wheel of external rotor.
Background technology
Along with the development of electric vehicle engineering, Electric Motor Wheel drive technology is applied, and wheel hub motor is one of core parts of Electric Motor Wheel drive technology.Existing wheel hub motor is on motor shaft, to have stator winding mostly, and energising magnetisation promotes external rotor and rotates, and the rotating speed of motor and moment of torsion are all very restricted and are not well positioned to meet the demand of electric automobile under various different operating modes.At present, also there is the motor of many motor parallels, as: China Patent No. is: ZL200820189167.7, name is called disclosed motor in the patent documentation of " planetary electric motor ", this motor adopts inner rotor core, each interior motor body also rotation, thereby inertia is excessive, and adopt carbon brush and commutator wiring reliability poor.
Summary of the invention
In view of the problem that prior art exists, the invention provides a kind of multiple interior motor parallel and there is the multistage controlled wheel hub motor of moment of torsion, in reducing, the rotating speed of motor improves the moment of torsion of wheel hub motor simultaneously.
The technical solution used in the present invention: comprise motor shaft and be supported on the external rotor on motor shaft, internal rotor is installed with multiple interior motors outside, the armature spindle of interior motor is spacedly distributed along the circumferencial direction of external rotor, the armature spindle of all interior motors is all parallel with motor shaft, on the armature spindle of each interior motor, be installed with a gear, all gears all engage with a ring gear, and ring gear and external rotor are connected.
Internal rotor outside, the left and right end of the motor shaft left and right supporting bracket that is connected respectively, on right support plate, have the through hole that stretch out for interior rotor axis of electric that along right support plate be circumferentially spacedly distributed identical with interior number of motors, the armature spindle center conllinear of the axis of through hole and interior motor, has the screwed hole of fixing interior motor on left support plate.
The stator of novel hub motor provided by the invention adopts the form of multiple interior motor parallels, mate gear reducing gear simultaneously, when each interior machine operation, drive external rotor to rotate by gear reduction, the rotating speed that can reduce interior motor improves the moment of torsion of wheel hub motor simultaneously, and the interior motor number of working is controlled simultaneously, thereby can make wheel hub motor meet the demand of electric automobile under different operating modes, improve dynamic property and the economy of electric automobile.
Accompanying drawing explanation
Structure for a more complete understanding of the present invention and operation principle, be described in further detail the present invention with embodiment in conjunction with the following drawings.
Fig. 1 is that wheel hub motor of the present invention removes the structural representation after local external rotor;
Fig. 2 is the mesh schematic representation of ring gear 4 and multiple gears in Fig. 1;
In figure, 1-motor shaft; 2-bearing; 3-gear; 4-ring gear; 5-right support plate; 6-external rotor; 7-interior motor; 8-screw; 9-left support plate; 10-rotor endcap; 11-end cap screw.
Embodiment
As shown in Figure 1, wheel hub motor of the present invention comprises: motor shaft 1, bearing 2, gear 3, ring gear 4, right support plate 5, external rotor 6, interior motor 7, screw 8, left support plate 9, rotor endcap 10, end cap screw 11.Outmost turns external rotor 6 of the present invention, the left end of external rotor 6 has rotor endcap 10, between the left end of external rotor 6 and rotor endcap 10, is fixedly connected by end cap screw 11, and the right-hand member of external rotor 6 is supported on motor shaft 1 by bearing 2.Motor shaft 1 maintains static and is hollow shaft, is positioned at the axle center place of external rotor 6.In external rotor 6 inside, be installed with multiple interior motors 7, the armature spindle of interior motor 7 is spacedly distributed along the circumferencial direction of external rotor 6, and the armature spindle of all interior motors 7 is all parallel with motor shaft 1.
In external rotor 6 inside, for interior motor 7 is installed, left support plate 9 and the left end of motor shaft 1 are connected, right support plate 5 is connected with the right-hand member of motor shaft 1, on right support plate 5, have the through hole that along right support plate 5 be circumferentially spacedly distributed identical with interior motor 7 quantity, the armature spindle center conllinear of the axis of through hole and interior motor 7, in the aperture ratio of through hole, the armature spindle diameter of motor 7 is slightly large, for stretching out of interior motor 7 armature spindles, and motor 7 in supporting.On left support plate 9, have screwed hole, corresponding with installing hole on interior motor 7, for mounting screw 8, by screw 8, interior motor 7 is fixed on left support plate 9.Like this, left support plate 9 and right support plate 5 are in fact for fixed support motor 7 in each.Interior motor 7 is selected the permanent magnetic brushless with the advantage such as high efficiency, high torque density, and for limiting its volume size but need to guarantee wheel hub motor gross power, its power should select 600 ~ 1000W to be advisable.The quantity of interior motor 7 is 3 ~ 5, even more.Fig. 1 only illustrates 3 interior motors 7.The armature spindle of interior motor 7 is parallel with motor shaft 1, is circumferentially spacedly distributed around motor shaft 1.On the armature spindle of each interior motor 7, be installed with a gear 3.All gears 3 all engage rotation with a ring gear 4, form primary speed-down the moment of torsion of interior motor 7 is passed to ring gear 4.The engaging speed reducing ratio and can match according to the overall dimension of wheel hub motor of gear 3 and ring gear 4, makes it meet to install and coordinate requirement.Ring gear 4 and external rotor 6 are connected, drive external rotor 6 synchronously to rotate.
The design of hub motor control device of the present invention is exactly the internally design of the controller of motor 7.Multiple interior motors 7 are connected in parallel, and by the engagement run-in synchronism of gear 3 and ring gear 4, thereby do not have speed discrepancy.When wheel hub motor of the present invention is normally worked, motor shaft 1 is for drawing motor harness, the real-time control voltage that the interior motor 7 of simultaneously working distributes should equate, can offset otherwise the torque of getting the interior motor 7 that voltage is low is less the torque that a part is got the interior motor 7 that voltage is high, cause whole wheel hub motor gross efficiency to reduce; And for idle interior motor 7, controller is tackled it and do not distributed control voltage, it is in open-circuit condition synchronous rotary, otherwise can cause equally whole wheel hub motor gross efficiency to reduce.The number of the interior motor 7 of simultaneously working is controlled, thereby causes the gross power of whole wheel hub motor multistage controlled.In the time that wheel hub motor need to be braked, now can stop distributing to all interior motors 7 and control voltage, whole wheel hub motor, in free rotation state, produces braking force and causes its stall under the effect of frictional force; Internally motor 7 is controlled, and make it become generator and generate electricity, thereby produce larger braking force recyclable braking energy, and to control the number of the interior motor 7 that carries out dynamic brake controlled simultaneously, thereby produce the electromagnetic system power of different sizes.
The electric automobile during traveling of wheel hub motor of the present invention is installed in the time of different operating mode, the number of the interior motor 7 of the wheel hub motor of simultaneously working is controlled, makes electric automobile have good dynamic property and economy.As: in the time that good road surface is at the uniform velocity travelled, can only start 1 ~ 2 interior motor 7 and drive, make interior motor 7 be operated in the optimum interval of efficiency, now motor no power in other, in idling conditions; In the time of the operating modes such as climbing, acceleration, all interior motor 7 is worked together, and all interior motors 7 are worked together, increase wheel hub motor power, provide enough actuating forces to make it meet electric automobile during traveling requirement; At lower long slope or while braking continuously, can allow interior motor 7 generate electricity, and the number of interior motor 7 of generating can be controlled according to demand braking force simultaneously, interior motor 7 numbers that demand braking force hour generates electricity are less than interior motor 7 numbers that braking force is generated electricity when large.Thereby realize the function of wheel hub motor lifting electric powered motor of the present invention and economy.
Claims (4)
1. the wheel hub motor of motor parallel more than a kind, comprise motor shaft (1) and be supported on the external rotor (6) on motor shaft (1), it is characterized in that: be installed with multiple interior motors (7) in external rotor (6) inside, the armature spindle of interior motor (7) is spacedly distributed along the circumferencial direction of external rotor (6), the armature spindle of all interior motors (7) is all parallel with motor shaft (1), on the armature spindle of each interior motor (7), be installed with a gear (3), all gears (3) all engage with a ring gear (4), and ring gear (4) is connected with external rotor (6).
2. a kind of wheel hub motor of many motor parallels according to claim 1, it is characterized in that: in the left and right end of the inner motor shaft (1) of external rotor (6) the left and right supporting bracket that is connected respectively, on right support plate, have the through hole that stretch out for interior motor (7) armature spindle that along right support plate be circumferentially spacedly distributed identical with interior motor (7) quantity, the armature spindle center conllinear of the axis of through hole and interior motor (7), has the screwed hole of fixing interior motor (7) on left support plate.
3. a kind of wheel hub motor of many motor parallels according to claim 1, is characterized in that: the power of interior motor (7) is 600 ~ 1000W, quantity is 3 ~ 5.
4. a kind of wheel hub motor of many motor parallels according to claim 1, it is characterized in that: the real-time control voltage that the interior motor (7) of simultaneously working distributes equates, idle interior motor (7) does not distribute control voltage, in the time that wheel hub motor need to be braked, all interior motors (7) are stopped distributing control voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052295.7A CN103795181A (en) | 2014-02-17 | 2014-02-17 | Wheel hub motor with multiple inner motors connected in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052295.7A CN103795181A (en) | 2014-02-17 | 2014-02-17 | Wheel hub motor with multiple inner motors connected in parallel |
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| Publication Number | Publication Date |
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| CN103795181A true CN103795181A (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410052295.7A Pending CN103795181A (en) | 2014-02-17 | 2014-02-17 | Wheel hub motor with multiple inner motors connected in parallel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175862A (en) * | 2014-08-25 | 2014-12-03 | 安徽工程大学 | Electric-car wheel-edge driving system and control method thereof |
| CN104175863A (en) * | 2014-08-27 | 2014-12-03 | 北京新能源汽车股份有限公司 | Hub drive system and control method thereof |
| CN104753248A (en) * | 2015-03-16 | 2015-07-01 | 郑州宇通客车股份有限公司 | Electric motor mechanism |
| CN110789635A (en) * | 2018-08-03 | 2020-02-14 | 黄学正 | Intelligent mobile carrier |
| CN111605397A (en) * | 2020-04-17 | 2020-09-01 | 北京理工大学 | Array type hub motor driving system and multi-wheel hub motor integration and brake steering integrated unmanned vehicle chassis |
| EP3715667A1 (en) * | 2019-03-26 | 2020-09-30 | Tana Oy | A waste management device and a modular power system for such |
| CN112910165A (en) * | 2021-04-08 | 2021-06-04 | 重庆大学 | Large-torque hub driving mechanism with self-locking function |
| CN113206574A (en) * | 2021-05-13 | 2021-08-03 | 山东科瑞油气装备有限公司 | Multi-motor parallel operation driving structure and multi-motor parallel operation installation method |
Citations (6)
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| CN1852008A (en) * | 2006-05-08 | 2006-10-25 | 任海 | Wheel-hub motor formed by two motors and used by electric vehicles |
| CN101327732A (en) * | 2008-07-23 | 2008-12-24 | 应光捷 | Electric power driven car multi-motor driving structure |
| CN201260107Y (en) * | 2008-08-27 | 2009-06-17 | 莫祖雄 | Planetary electric motor |
| JP4989441B2 (en) * | 2007-12-19 | 2012-08-01 | 株式会社東海理化電機製作所 | Webbing retractor and motor actuator |
| US8596165B2 (en) * | 2006-06-09 | 2013-12-03 | Parker-Hannifin Corporation | Multiple gear motor drive |
| CN103481774A (en) * | 2013-10-21 | 2014-01-01 | 哈尔滨工业大学 | Radial parallel type multi-motor driving device |
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2014
- 2014-02-17 CN CN201410052295.7A patent/CN103795181A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852008A (en) * | 2006-05-08 | 2006-10-25 | 任海 | Wheel-hub motor formed by two motors and used by electric vehicles |
| US8596165B2 (en) * | 2006-06-09 | 2013-12-03 | Parker-Hannifin Corporation | Multiple gear motor drive |
| JP4989441B2 (en) * | 2007-12-19 | 2012-08-01 | 株式会社東海理化電機製作所 | Webbing retractor and motor actuator |
| CN101327732A (en) * | 2008-07-23 | 2008-12-24 | 应光捷 | Electric power driven car multi-motor driving structure |
| CN201260107Y (en) * | 2008-08-27 | 2009-06-17 | 莫祖雄 | Planetary electric motor |
| CN103481774A (en) * | 2013-10-21 | 2014-01-01 | 哈尔滨工业大学 | Radial parallel type multi-motor driving device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175862A (en) * | 2014-08-25 | 2014-12-03 | 安徽工程大学 | Electric-car wheel-edge driving system and control method thereof |
| CN104175863A (en) * | 2014-08-27 | 2014-12-03 | 北京新能源汽车股份有限公司 | Hub drive system and control method thereof |
| CN104175863B (en) * | 2014-08-27 | 2017-08-08 | 北京新能源汽车股份有限公司 | A kind of hub drive system and its control method |
| CN104753248A (en) * | 2015-03-16 | 2015-07-01 | 郑州宇通客车股份有限公司 | Electric motor mechanism |
| CN110789635A (en) * | 2018-08-03 | 2020-02-14 | 黄学正 | Intelligent mobile carrier |
| EP3715667A1 (en) * | 2019-03-26 | 2020-09-30 | Tana Oy | A waste management device and a modular power system for such |
| US11371584B2 (en) | 2019-03-26 | 2022-06-28 | Tana Oy | Waste management device and a modular power system for such |
| CN111605397A (en) * | 2020-04-17 | 2020-09-01 | 北京理工大学 | Array type hub motor driving system and multi-wheel hub motor integration and brake steering integrated unmanned vehicle chassis |
| CN112910165A (en) * | 2021-04-08 | 2021-06-04 | 重庆大学 | Large-torque hub driving mechanism with self-locking function |
| CN113206574A (en) * | 2021-05-13 | 2021-08-03 | 山东科瑞油气装备有限公司 | Multi-motor parallel operation driving structure and multi-motor parallel operation installation method |
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Application publication date: 20140514 |