CN101882825A - Motor rotor for electric automobile - Google Patents
Motor rotor for electric automobile Download PDFInfo
- Publication number
- CN101882825A CN101882825A CN2010101756465A CN201010175646A CN101882825A CN 101882825 A CN101882825 A CN 101882825A CN 2010101756465 A CN2010101756465 A CN 2010101756465A CN 201010175646 A CN201010175646 A CN 201010175646A CN 101882825 A CN101882825 A CN 101882825A
- Authority
- CN
- China
- Prior art keywords
- rotor
- rotor yoke
- permanent magnet
- magnet
- electric automobile
- 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.)
- Pending
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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
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a motor rotor for an electric automobile, with a simple structure and capability of reliably fixing a permanent magnet on a rotor yoke. The motor rotor comprises a rotating shaft (1), a rotor yoke (3) and tile-shaped permanent magnets (4), wherein the rotating shaft (1) passes through the centre of the rotor yoke (3) and is fixedly connected with the rotor yoke (3); the tile-shaped permanent magnets (4) are uniformly distributed on the surface of the outer circumference of the rotor yoke (3); the motor rotor comprises a magnet fastening ring (5); and the magnet fastening ring (5) is sleeved on the periphery of the tile-shaped permanent magnets (4). The motor rotor is widely applied in the field of a drive motor of the electric automobile.
Description
Technical field
The present invention relates to be used for the electric motors of electric automobile, relate to a kind of rotor that is used for electric automobile in particular.
Background technology
Prior motor surface permanent magnetic rotor all adopts a watt shape permanent magnet directly to be bonded on the rotor yoke, this technical scheme is simple in structure, low cost of manufacture, therefore use wider in the magneto field, but because the work of used for electric vehicle drive motors often is in operating modes such as high low temperature alternation, vibration, limit speed all requires more than 5000r/min, if use the routine techniques scheme, bonding agent is easily aging to reduce adhesive strength, and permanent magnet is easy to generate displacement or comes off under electromagnetic force and centrifugal action.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of simple in structure, permanent magnet can be fixed on the rotor that is used for electric automobile on the rotor yoke again reliably.
The technical solution adopted in the present invention is: the present invention includes rotating shaft, rotor yoke and watt shape permanent magnet, described rotating shaft is passed the center of rotor yoke and is fixedlyed connected with described rotor yoke, described watt of shape permanent magnet is evenly distributed on the surface of described rotor yoke excircle, described rotor comprises a magnet tight loop, and described magnet tight loop is socketed on the periphery of described watt of shape permanent magnet.
Fix by briquetting and screw between described watt of shape permanent magnet and the rotor yoke, respectively be provided with a draw-in groove at the two ends of described watt of shape permanent magnet, described briquetting is pressed in the described draw-in groove, and described screw passes rotor yoke and fastening with briquetting.
Periphery at described rotor yoke is provided with some qualification grooves, and described briquetting matches with described qualification groove.
The cross section of described rotor yoke is the hollow structure of " worker " font.
Described magnet tight loop is that non-magnet material or low permeability magnetic material are made.
The invention has the beneficial effects as follows: because described watt of shape permanent magnet is evenly distributed on the surface of described rotor yoke excircle, described rotor comprises a magnet tight loop, described magnet tight loop is socketed on the periphery of described watt of shape permanent magnet, on the surface that constrains in the rotor yoke excircle that the magnet tight loop can be firm with watt shape permanent magnet, can not be subjected to displacement and come off etc.Owing to fixing by briquetting and screw between described watt of shape permanent magnet and the rotor yoke, two ends at described watt of shape permanent magnet respectively are provided with a draw-in groove, described briquetting is pressed in the described draw-in groove, described screw passes rotor yoke and fastening with briquetting, so further fixing watt shape permanent magnet, make it under operating modes such as high low temperature alternation, vibration, keep accurate position, prevent decreased performance.Because the cross section of described rotor yoke is the hollow structure of " worker " font, can alleviate motor quality like this, has improved the power of motor.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is along the cutaway view of A-A direction among Fig. 1.
Embodiment
As shown in Figure 1, the present invention includes rotating shaft 1, rotor yoke 3 and watt shape permanent magnet 4, described rotating shaft 1 is rotated assembling with motor body upper bearing (metal) 2, and pass the center of rotor yoke 3 and fixedly connected with described rotor yoke 3, described watt of shape permanent magnet 4 is evenly distributed on the surface of described rotor yoke 3 excircles, described rotor comprises a magnet tight loop 5, described magnet tight loop 5 is socketed on the periphery of described watt of shape permanent magnet 4, described magnet tight loop 5 is made for non-magnet material or low permeability magnetic material, materials such as general employing stainless steel, on the surface that constrains in rotor yoke 3 excircles that magnet tight loop 5 can be firm with watt shape permanent magnet 4, situations such as can not being subjected to displacement and coming off.
As Fig. 2, described watt of shape permanent magnet 4 is evenly distributed on rotor yoke 3 outer circumference surfaces, fix by briquetting 7 and screw 6 between it and the rotor yoke 3, respectively be provided with a draw-in groove 8 at the two ends of described watt of shape permanent magnet 4, periphery at described rotor yoke 3 is provided with some qualification grooves 9, and described briquetting 7 matches with described qualification groove 9.Described briquetting 7 is pressed in the described draw-in groove 8, described screw 6 passes rotor yoke 3 and fastening with briquetting 7, guaranteed the reliability of watt shape permanent magnet 4 so more, compare conventional bonding way, can prevent that electric motor of automobile is in operating modes such as high low temperature alternation, vibrations, easily aging adhesive strength reduction, the situation that permanent magnet is easy to generate displacement or comes off under electromagnetic force and centrifugal action of making of bonding agent appears.
In addition, the cross section of described rotor yoke 3 is the hollow structure of " worker " font, has both saved material, has reduced cost, the more important thing is the quality that has alleviated motor, has improved quality than power, has improved the performance index of motor integral body.
Claims (5)
1. rotor that is used for electric automobile, comprise rotating shaft (1), rotor yoke (3) and watt shape permanent magnet (4), described rotating shaft (1) is passed the center of rotor yoke (3) and is fixedlyed connected with described rotor yoke (3), described watt of shape permanent magnet (4) is evenly distributed on the surface of described rotor yoke (3) excircle, it is characterized in that: described rotor comprises a magnet tight loop (5), and described magnet tight loop (5) is socketed on the periphery of described watt of shape permanent magnet (4).
2. a kind of rotor that is used for electric automobile according to claim 1, it is characterized in that: fix by briquetting (7) and screw (6) between described watt of shape permanent magnet (4) and the rotor yoke (3), respectively be provided with a draw-in groove (8) at the two ends of described watt of shape permanent magnet (4), described briquetting (7) is pressed in the described draw-in groove (8), and described screw (6) passes rotor yoke (3) and fastening with briquetting (7).
3. a kind of rotor that is used for electric automobile according to claim 2 is characterized in that: the periphery at described rotor yoke (3) is provided with some qualification grooves (9), and described briquetting (7) matches with described qualification groove (9).
4. a kind of rotor that is used for electric automobile according to claim 1 is characterized in that: the cross section of described rotor yoke (3) is the hollow structure of " worker " font.
5. a kind of rotor that is used for electric automobile according to claim 1 is characterized in that: described magnet tight loop (5) is made for non-magnet material or low permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101756465A CN101882825A (en) | 2010-05-11 | 2010-05-11 | Motor rotor for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101756465A CN101882825A (en) | 2010-05-11 | 2010-05-11 | Motor rotor for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101882825A true CN101882825A (en) | 2010-11-10 |
Family
ID=43054754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101756465A Pending CN101882825A (en) | 2010-05-11 | 2010-05-11 | Motor rotor for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101882825A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580436A (en) * | 2012-08-02 | 2014-02-12 | 深圳市瀚美特科技有限公司 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
| CN105490412A (en) * | 2014-08-06 | 2016-04-13 | 德昌电机(深圳)有限公司 | Motor rotor and brushless DC motor applying same |
| CN106160289A (en) * | 2016-08-31 | 2016-11-23 | 宁波菲仕电机技术有限公司 | A kind of permanent magnet synchronous servo motor low inertia rotor structure |
| WO2018232633A1 (en) * | 2017-06-21 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Component of generator and generator having the component |
| CN114614637A (en) * | 2022-03-29 | 2022-06-10 | 江西泰豪军工集团有限公司 | Be used for tile shape permanent magnetism piece location installation frock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2840480Y (en) * | 2005-10-11 | 2006-11-22 | 上海万德风力发电股份有限公司 | Neodymium-ferroboron permanent magnetic electric machine rotor used on wind power generator |
| CN201118298Y (en) * | 2007-03-26 | 2008-09-17 | 深圳市金奇稀土电机有限公司 | Driving motor permanent magnetic rotor for electric car |
| CN201717696U (en) * | 2010-05-11 | 2011-01-19 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
-
2010
- 2010-05-11 CN CN2010101756465A patent/CN101882825A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2840480Y (en) * | 2005-10-11 | 2006-11-22 | 上海万德风力发电股份有限公司 | Neodymium-ferroboron permanent magnetic electric machine rotor used on wind power generator |
| CN201118298Y (en) * | 2007-03-26 | 2008-09-17 | 深圳市金奇稀土电机有限公司 | Driving motor permanent magnetic rotor for electric car |
| CN201717696U (en) * | 2010-05-11 | 2011-01-19 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580436A (en) * | 2012-08-02 | 2014-02-12 | 深圳市瀚美特科技有限公司 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
| CN105490412A (en) * | 2014-08-06 | 2016-04-13 | 德昌电机(深圳)有限公司 | Motor rotor and brushless DC motor applying same |
| CN105490412B (en) * | 2014-08-06 | 2019-07-09 | 德昌电机(深圳)有限公司 | Rotor and the brshless DC motor for applying it |
| CN106160289A (en) * | 2016-08-31 | 2016-11-23 | 宁波菲仕电机技术有限公司 | A kind of permanent magnet synchronous servo motor low inertia rotor structure |
| WO2018232633A1 (en) * | 2017-06-21 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Component of generator and generator having the component |
| CN114614637A (en) * | 2022-03-29 | 2022-06-10 | 江西泰豪军工集团有限公司 | Be used for tile shape permanent magnetism piece location installation frock |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHUHAI LITHIUM NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TANGSHAN CAOFEIDIAN LITHIUM ELECTRIC VEHICLE DRIVING ASSEMBLY CO., LTD. Effective date: 20110307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 063000 ELECTRIC VEHICLE CO., LTD., EQUIPMENT MANUFACTURING INDUSTRIAL PARK,CAOFEIDIAN INDUSTRIAL AREA, TANGSHAN CITY, HEBEI PROVINCE TO: 519015 2406, OFFICE BUILDING, YUECAI BUILDING, NO.188, JINGSHAN ROAD, JIDA, ZHUHAI CITY, GUANGDONG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110307 Address after: 519015 Guangdong province Zhuhai Jida Jingshan Hill Road No. 188 Yuecai building office building 2406 Applicant after: Zhuhai Liyuan New Energy Technology Co., Ltd. Address before: 063000 Tangshan City Hebei Caofeidian Industrial Zone equipment manufacturing Industrial Zone Electric Automobile Co., Ltd. Applicant before: Tangshan Caofeidian Lithium Energy Auto Drive Co., Ltd. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101110 |