CN1562655A - Driving wheel hub of electric motor car - Google Patents
Driving wheel hub of electric motor car Download PDFInfo
- Publication number
- CN1562655A CN1562655A CNA2004100174546A CN200410017454A CN1562655A CN 1562655 A CN1562655 A CN 1562655A CN A2004100174546 A CNA2004100174546 A CN A2004100174546A CN 200410017454 A CN200410017454 A CN 200410017454A CN 1562655 A CN1562655 A CN 1562655A
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- CN
- China
- Prior art keywords
- battery
- driven car
- drive hub
- motor
- tooth
- 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.)
- Granted
Links
- 238000009826 distribution Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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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
A drive hub of elecric car is composed of elecric motor, rim and spokes connected between electric motor and rim. Said electric motor has an internal stator fixed to wheel axle and external rotor fixed to motor casing. Said internal stator has a iron core with 18 teeth. Said external rotor has 20 permanent magnets.
Description
Technical field
The present invention relates to a kind of battery-driven car, especially relate to a kind of drive hub of battery-driven car.
Background technology
Battery-driven car (comprising Electrical Bicycle, battery-operated motor cycle) is emission-free with it, low noise, safety, advantage such as light, be subjected to increasing customer's favor, the drive hub of battery-driven car is then as the major part of battery-driven car, occupying critical role in all parts of battery-driven car, also is research and development of all producers and research institution and improved emphasis.The drive hub of battery-driven car mainly comprises motor, wheel rim and spoke.In the selection of motor, at present mainly so that brush DC machine and brshless DC motor to be arranged, there is the brush DC machine to carry out mechanical commutation because of adopting commutator and brush, therefore there are critical defects such as noise greatly, easily produces spark and radio interference, service life is short, efficient is low, maintenance difficult, will be progressively substituted by brshless DC motor.But the battery-driven car that uses brshless DC motor is at present still failed to substitute widely and is used the battery-driven car that the brush DC machine is arranged, its major cause remains in some defectives with regard to the drive hub that is battery-driven car, these defectives mainly show in the following areas: the one, and the three-phase permanent magnet brushless motor that the brshless DC motor that uses in the market all adopts traditional square wave to drive, its teeth groove is counted the ratio z/2p=3 of z and number of magnetic poles 2p, in order to obtain thin as far as possible yoke, alleviate the weight of motor, improve motor performance, just must increase the quantity of magnetic pole as far as possible, and magnetic pole is many more, the quantity of teeth groove also increases thereupon, and this has limited the space of teeth groove conversely, and in order to eliminate the slot ripples interference of brushless motor itself, all teeth groove are and are parallel to each other and the skewed slot angled with the axis of wheel shaft, this makes that the space of teeth groove is narrower and small, thereby limited the number of turn of institute's spool, and in order to obtain enough magnetic-field intensitys, the thickness of just necessary corresponding increase iron core, the consequence that causes thus is that the volume of motor is bigger, materials used is more, and manufacturing cost is higher; The 2nd, the manufacturing process complexity, the mode that its winding is made generally will be passed through operations such as coiling, rule, shaping, colligation, secondary reshaping, and the necessary juxtaposition setting of each coil, has caused make efficiency low, the corresponding increase of cost of manufacture; The 3rd, the end cap of DC machine comes off because of loosening the causing of tightening screw easily, can bring danger to the bicyclist.
Summary of the invention
Technical matters to be solved by this invention is the drive hub that a kind of battery-driven car is provided at above-mentioned prior art present situation, its employed brshless DC motor volume is little, material is economized, manufacturing process is simple, low cost of manufacture, slot ripples disturbs little, and it is more safe and reliable to ride.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of drive hub of battery-driven car, comprise motor, wheel rim and spoke, described spoke connects described wheel rim and described motor, described motor comprises internal stator that is fixed together with wheel shaft and the outer rotor that is fixed as one with electric machine casing, described internal stator is provided with rotor-position sensor, the both sides of described electric machine casing are provided with end cap, described internal stator comprises a stator core, rectangular distribution is provided with 18 teeth on the circumference of described stator core, the direction of described tooth is axial consistent with described wheel shaft, be wound with coil on the described tooth, be provided with insulating part between described coil and the described tooth, described outer rotor be the medial surface rectangular distribution at described electric machine casing be provided with 20 with the corresponding permanent magnet of described tooth.
Described stator core one side end is provided with three member slot, between the described member slot respectively at a distance of three teeth, described rotor-position sensor can be arranged on three Hall elements in the described member slot, reverse to skew with respect to the groove center of adjacent two described between cog at the center of described Hall element, does not coincide.Described Hall element also can substitute with other element with identical function.
Slot between the described tooth is filled with soft-magnetic material, and these soft-magnetic materials can be such as magnetic properties such as silicon steel plate material preferably.
Described wheel shaft is provided with the axial notch of symmetry, and the fixture wire of described coil and the fixture wire of described rotor-position sensor are drawn by described groove, be arranged on fixture wire in the described groove around be provided with the fixture wire protective cover.
Described fixture wire protective cover is formed by being arranged on the gland packing in the internal recess and being arranged on outer grooves axle sleeve on every side.
The two ends of described wheel shaft are provided with the side of milling, and place, the described side of milling is provided with non-metallic gasket.
The nearly outer rim place of described end cap is provided with spoke hole, and described spoke one end is fixedly connected in the described spoke hole, and an end and described wheel rim are connected and fixed.
Described insulating part can be two symmetrically arranged insulation cutting ferrules.
Compared with prior art, the invention has the advantages that employed brshless DC motor has 20 magnetic poles and 18 teeth, when effectively reducing yoke, the space of groove increases greatly, and the number of turn of coil winding is increased easily, like this for the power that will reach, the thickness of its needed stator core is then corresponding to significantly reduce, both reduced the volume of motor, also saved material, the manufacturing cost of product is effectively reduced; Coil of the present invention is directly to be wound on the tooth of stator, not only simplified the winding manufacture craft of original complexity, and because the space of teeth groove is bigger, winding does not need the juxtaposition setting again, the making of winding is more time saving and energy saving, improved the efficient that winding is made greatly, the efficient of making winding on average generally can improve 3～5 times; The center of Hall element is offset a suitable distance towards the center of reversing to direction and groove, can improves efficiency of motor effectively; The groove that symmetry is set on wheel shaft is drawn the fixture wire of coil and rotor-position sensor, at the wheel shaft center axial lead hole is set with respect to existing, can improve the weight capacity of wheel shaft, thereby improves the safety of battery-driven car; The non-metallic gasket that is arranged on the wheel shaft two ends can play the effect of vibration and noise reducing, thereby can reduce vibration and noise that battery-driven car exists in starting acceleration and normal operation process; Gland packing can play the effect of water-tight; Fill slot between the tooth with soft-magnetic material, can reduce the harmonic component in magnetic field; And spoke and end cap are linked together, can prevent that the end cap that screw loosening causes from coming off, increase the battery-driven car process safe of riding; In addition, the design of the present invention's 20 magnetic poles and ten octadentates (groove) can reduce effectively to the deletrious harmonic torque of motor; And the quantity of magnetic pole and tooth (groove) is even number, then makes whole magnetic field can be in symmetrically state, can prevent that magnetic field is asymmetric and makes bearing bear unidirectional magnetic pull effect, thereby improve effectively the service life of bearing.
Description of drawings
Fig. 1 is a surface structure scheme drawing of the present invention;
Fig. 2 is the surface structure scheme drawing of motor of the present invention;
Fig. 3 is the cutaway view of electric machine structure of the present invention;
Fig. 4 is the stator of motor of the present invention and the cooperation scheme drawing of rotor;
The partial schematic diagram that Fig. 5 distributes on stator for Hall element of the present invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure; a kind of drive hub of battery-driven car; comprise motor 1; wheel rim 2 and spoke 3; motor 1 comprises internal stator 11 that is fixed together with wheel shaft 4 and the outer rotor 13 that is fixed as one with electric machine casing 12; internal stator 11 comprises a stator core 14; rectangular distribution is provided with 18 teeth 15 on the circumference of stator core 14; the direction of tooth 15 is axial consistent with wheel shaft 4; be wound with coil 16 on the tooth 15; be provided with two symmetry insulation cutting ferrules 17 between coil 16 and the tooth 15 and constitute insulating part; outer rotor 13 be the medial surface rectangular distribution at electric machine casing 12 be provided with 20 with tooth 15 corresponding permanent magnets 18; internal stator 11 is provided with three member slot 19; three member slot 19 are respectively at a distance of three teeth; be respectively arranged with three Hall elements 20 in three member slot 19 and constitute rotor-position sensor; the groove center of adjacent relatively two between cog in the center of Hall element 20 is offset to direction towards reversing; do not coincide; the both sides of the housing 12 of motor 1 are provided with end cap 21; be provided with bearing 22 between end cap 21 and the wheel shaft 4; end cap 21 usefulness screws 25 are fixed on the electric machine casing 12; slot 23 between the tooth 15 is filled with the silicon steel plate (not shown); wheel shaft 4 is provided with the axial notch 41 of symmetry; the fixture wire of the fixture wire of coil 16 and Hall element 20 is drawn by groove 41; the gland packing 42 of using in the close groove of motor internal on every side that is arranged on the fixture wire in the groove 41 seals; and protecting with axle sleeve 43 near around the exterior groove of motor; the two ends of wheel shaft 4 are provided with the side of milling 44; 44 places, the side of milling are provided with nylon spacer 45; the nearly outer rim place of end cap 21 is provided with spoke hole 24; spoke 3 one ends are fixedly connected in the spoke hole 24, and an end and wheel rim 2 are connected and fixed.
In the foregoing description, Hall element 20 can substitute with other element with similar functions, silicon steel plate also can with magnetic property preferably other soft-magnetic material substitute, and nylon spacer 45 also can use other non-metallic gasket, and insulation cutting ferrule 17 also can substitute with other insulating part.
Claims (8)
1, a kind of drive hub of battery-driven car, comprise motor, wheel rim and spoke, described spoke connects described wheel rim and described motor, described motor comprises internal stator that is fixed together with wheel shaft and the outer rotor that is fixed as one with electric machine casing, described internal stator is provided with rotor-position sensor, the both sides of described electric machine casing are provided with end cap, it is characterized in that described internal stator comprises a stator core, rectangular distribution is provided with 18 teeth on the circumference of described stator core, the direction of described tooth is axial consistent with described wheel shaft, be wound with coil on the described tooth, be provided with insulating part between described coil and the described tooth, described outer rotor be the medial surface rectangular distribution at described electric machine casing be provided with 20 with the corresponding permanent magnet of described tooth.
2, the drive hub of a kind of battery-driven car as claimed in claim 1, it is characterized in that described stator core one side end is provided with three member slot, between the described member slot respectively at a distance of three teeth, described rotor-position sensor is arranged on three Hall elements in the described member slot, reverse to skew with respect to the groove center of adjacent two described between cog at the center of described Hall element, does not coincide.
3, the drive hub of a kind of battery-driven car as claimed in claim 1 is characterized in that the slot between the described tooth is filled with soft-magnetic material.
4, the drive hub of a kind of battery-driven car as claimed in claim 1; it is characterized in that described wheel shaft is provided with the axial notch of symmetry; the fixture wire of described coil and the fixture wire of described rotor-position sensor are drawn by described groove, be arranged on fixture wire in the described groove around be provided with the fixture wire protective cover.
5, the drive hub of a kind of battery-driven car as claimed in claim 4 is characterized in that described fixture wire protective cover is made up of the axle sleeve that is arranged on the gland packing in the internal recess and be arranged on around the outer grooves.
6, the drive hub of a kind of battery-driven car as claimed in claim 1 is characterized in that the two ends of described wheel shaft are provided with the side of milling, and place, the described side of milling is provided with non-metallic gasket.
7, the drive hub of a kind of battery-driven car as claimed in claim 1 is characterized in that the nearly outer rim place of described end cap is provided with spoke hole, and described spoke one end is fixedly connected in the described spoke hole, and an end and described wheel rim are connected and fixed.
8, the drive hub of a kind of battery-driven car as claimed in claim 1 is characterized in that described insulating part is two symmetrically arranged insulation cutting ferrules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100174546A CN1299925C (en) | 2004-04-05 | 2004-04-05 | Driving wheel hub of electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100174546A CN1299925C (en) | 2004-04-05 | 2004-04-05 | Driving wheel hub of electric motor car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562655A true CN1562655A (en) | 2005-01-12 |
| CN1299925C CN1299925C (en) | 2007-02-14 |
Family
ID=34478977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100174546A Expired - Lifetime CN1299925C (en) | 2004-04-05 | 2004-04-05 | Driving wheel hub of electric motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1299925C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545515A (en) * | 2012-01-19 | 2012-07-04 | 天津清源电动车辆有限责任公司 | Permanent-magnet motor based on Halbach array for electric automobile hub |
| WO2012171177A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江达世元电动科技有限公司 | All-electric wheel assembly |
| WO2012171179A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江达世元电动科技有限公司 | All-electric wheel assembly |
| WO2012171180A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江博望科技发展有限公司 | All electric wheel assembly |
| CN106184545A (en) * | 2016-08-01 | 2016-12-07 | 蓝慧熙 | There is the electric motor car of preventer |
| CN106981964A (en) * | 2017-04-12 | 2017-07-25 | 王卫华 | Electrically operated gate and its door lifter |
| CN106992645A (en) * | 2015-09-14 | 2017-07-28 | 台州市金宇机电有限公司 | A kind of wheel hub motor for electric car |
| CN107017753A (en) * | 2017-04-12 | 2017-08-04 | 王卫华 | A kind of motor |
| CN107086746A (en) * | 2017-04-12 | 2017-08-22 | 王卫华 | Electrically operated gate and its door lifter |
| WO2020211494A1 (en) * | 2019-04-15 | 2020-10-22 | 佛山市启正电气有限公司 | Low-rotation-speed large-torque outer rotor, electric motor, and ceiling fan |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301810Y (en) * | 1997-06-24 | 1998-12-23 | 中国船舶工业总公司第七研究院第七一二研究所 | Permanent-magnet brushless DC motor |
| CN2377762Y (en) * | 1998-11-02 | 2000-05-10 | 万德鸿 | Mechanoelectric integrated permanent-magnet brushless electric machine |
| NO311200B1 (en) * | 1999-05-25 | 2001-10-22 | Smart Motor As | Electric machine |
| CN2538601Y (en) * | 2002-03-21 | 2003-03-05 | 杨娜 | Motor for electric vehicle |
| CN2693517Y (en) * | 2004-04-05 | 2005-04-20 | 宁波北斗科技有限公司 | Drive hub of electric vehicle |
-
2004
- 2004-04-05 CN CNB2004100174546A patent/CN1299925C/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171177A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江达世元电动科技有限公司 | All-electric wheel assembly |
| WO2012171179A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江达世元电动科技有限公司 | All-electric wheel assembly |
| WO2012171180A1 (en) * | 2011-06-14 | 2012-12-20 | 浙江博望科技发展有限公司 | All electric wheel assembly |
| CN102545515A (en) * | 2012-01-19 | 2012-07-04 | 天津清源电动车辆有限责任公司 | Permanent-magnet motor based on Halbach array for electric automobile hub |
| CN106992645A (en) * | 2015-09-14 | 2017-07-28 | 台州市金宇机电有限公司 | A kind of wheel hub motor for electric car |
| CN106184545A (en) * | 2016-08-01 | 2016-12-07 | 蓝慧熙 | There is the electric motor car of preventer |
| CN106981964A (en) * | 2017-04-12 | 2017-07-25 | 王卫华 | Electrically operated gate and its door lifter |
| CN107017753A (en) * | 2017-04-12 | 2017-08-04 | 王卫华 | A kind of motor |
| CN107086746A (en) * | 2017-04-12 | 2017-08-22 | 王卫华 | Electrically operated gate and its door lifter |
| WO2020211494A1 (en) * | 2019-04-15 | 2020-10-22 | 佛山市启正电气有限公司 | Low-rotation-speed large-torque outer rotor, electric motor, and ceiling fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1299925C (en) | 2007-02-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HANGZHOU BAY NEW ZONE BEIDOU MOTOR CO., LTD Free format text: FORMER OWNER: BEIDOU TECH CO., LTD., NINGBO Effective date: 20120814 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315321 NINGBO, ZHEJIANG PROVINCE TO: 315336 NINGBO, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120814 Address after: 315336, No. 29 Xiao Tong Road, Hangzhou Bay New District, Zhejiang, Cixi Patentee after: NINGBO HANGZHOU WANXIN AREA BIG DIPPER MOTOR Co.,Ltd. Address before: 315321 Zhejiang Province, Cixi City Industrial Development Zone Xiaolin Xiaolin Road No. 172 Patentee before: NINGBO POLARIS TECHNOLOGY Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: BOSCH (NINGBO) LIGHT ELECTRIC VEHICLE MOTOR CO., L Free format text: FORMER NAME: NINGBO HANGZHOU BAY NEW ZONE BEIDOU MOTOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315336, No. 29 Xiao Tong Road, Hangzhou Bay New District, Zhejiang, Cixi Patentee after: BOSCH (NINGBO) E-SCOOTER MOTOR Co.,Ltd. Address before: 315336, No. 29 Xiao Tong Road, Hangzhou Bay New District, Zhejiang, Cixi Patentee before: Ningbo Hangzhou Wanxin Area Big Dipper Motor Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20231220 Address after: No. 126, Suhong West Road, Suzhou Industrial Park, Jiangsu Province 215021 Patentee after: BOSCH AUTOMOTIVE PRODUCTS (SUZHOU) Co.,Ltd. Address before: No. 29 Xiaotang Road, Hangzhou Bay New Area, Cixi City, Zhejiang Province, China Patentee before: BOSCH (NINGBO) E-SCOOTER MOTOR Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070214 |