CN201118298Y - Driving motor permanent magnetic rotor for electric car - Google Patents
Driving motor permanent magnetic rotor for electric car Download PDFInfo
- Publication number
- CN201118298Y CN201118298Y CNU2007201190850U CN200720119085U CN201118298Y CN 201118298 Y CN201118298 Y CN 201118298Y CN U2007201190850 U CNU2007201190850 U CN U2007201190850U CN 200720119085 U CN200720119085 U CN 200720119085U CN 201118298 Y CN201118298 Y CN 201118298Y
- Authority
- CN
- China
- Prior art keywords
- yoke
- magnetic
- permanent magnets
- permanent magnet
- rotor
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A permanently-magnetic rotor used in an electric automobile to drive a motor mainly comprises tegular permanent magnets, magnetic yokes and shafts. The tegular permanent magnets are distributed evenly on the external cylindrical surfaces of magnetic yokes, and a north pole is to adjacent a south pole. The permanently-magnetic rotor is characterized in that the permanent magnet is provided with two bevels; a trim strip made from a non-permeable material is arranged between sides of two neighboring permanent magnets, and two sides of the trim strip press rightly on the bevels of two neighboring permanent magnets and are fixed on the magnetic yokes with bolts; the cross section of the magnetic yoke is an I-shaped structure; the bolts pull the trim strips tightly by going through the magnetic yokes outwards; when the rotor rotates, the bolts are stressed outwards under the effect of centrifugal force. Compared with the prior art, the permanently-magnetic rotor has the advantages that the magnetic steel is pressed firmly, the bolts do not loosen easily, and the permanent magnets do not displace or fall off even in the case of high-speed rotation.
Description
Technical field
The utility model relates to a kind of used for electric vehicle drive motors p-m rotor.
Background technology
Traditional 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
The purpose of this utility model just provides a kind of simple in structure, and cost is low, permanent magnet again can secure fixation on rotor yoke, the p-m rotor of the used for electric vehicle drive motors that comes off displacement can not appear or in permanent magnet during work under electromagnetic force and centrifugal action.
The purpose of this utility model is achieved in that and mainly comprises a watt shape permanent magnet, yoke and axle, axle passes the yoke center and is connected with the yoke tight fit, watt shape permanent magnet is evenly distributed on the external cylindrical surface of yoke, the N utmost point and S are extremely adjacent, it is characterized in that: there is the inclined-plane permanent magnet both sides, between the adjacent two permanent magnet sides press strip made from non-magnet material is installed, the both sides of press strip just in time are pressed on the inclined-plane of adjacent two permanent magnets, and are fastened on the yoke with screw.
Yoke section is an I-shape construction, and screw passes yoke from inside to outside press strip is strained, and during rotor rotation, screw is outwards stressed at centrifugal action, is subjected to force direction just in time consistent with the screw-driving direction, and obviously screw is difficult for loosening.
In order to improve the indexing accuracy of permanent magnet on the yoke cylindrical, so, cylindrical in yoke is processed with the stopper slot that is evenly distributed, press strip just in time is embedded in the stopper slot, make it circumferentially fixing, like this, during assembling, the circumferential position precision of permanent magnet on the yoke cylindrical just obtains guaranteeing, not influenced by human factor.
Beneficial effect:
1. magnet steel compresses firmly, and screw is difficult for loosening, even if permanent magnet can not occur displacement yet or come off when high rotating speed.
2. permanent magnet being evenly distributed on the yoke cylindrical, during assembling, the circumferential position precision just obtains guaranteeing, not influenced by human factor.
Description of drawings:
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A cutaway view of Fig. 1
Sequence number explanation among the figure: watt shape permanent magnet 1, press strip 2, screw 3, yoke 4, stopper slot 5, axle 6.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the utility model is further described:
Used for electric vehicle drive motors permanent magnet rotor structure of the present utility model as shown in the figure, axle 6 passes the yoke center and is connected with yoke 4 tight fits, watt shape permanent magnet 1 evenly distributes and is installed on the external cylindrical surface of yoke 4, the N utmost point and S are extremely adjacent, there is the inclined-plane permanent magnet 1 both sides, between the adjacent two permanent magnet sides press strip made from non-magnet material 2 is installed, the both sides of press strip 2 just in time are pressed on the inclined-plane of adjacent two permanent magnets, and it is fastening with screw 3, yoke 4 cross sections are I-shape construction, screw 3 passes yoke 4 from inside to outside with press strip 2 tensions, during working rotor, screw 3 is outwards stressed under centrifugal action, is subjected to force direction just in time consistent with screw 3 tightening directions, and obviously screw is difficult for loosening.
The cylindrical of yoke is processed with the uniform stopper slot 5 of calibration, and press strip 2 just in time is embedded in the stopper slot 5, makes it circumferentially fixing, and like this, during assembling, the circumferential position precision of permanent magnet 1 on yoke 4 cylindricals just obtains guaranteeing, not influenced by human factor.
Claims (3)
1. used for electric vehicle drive motors p-m rotor, mainly comprise a watt shape permanent magnet, yoke and axle, axle passes the yoke center and is connected with the yoke tight fit, watt shape permanent magnet is evenly distributed on the external cylindrical surface of yoke, the N utmost point and S are extremely adjacent, it is characterized in that: there is the inclined-plane permanent magnet both sides, between the adjacent two permanent magnet sides press strip made from non-magnet material are installed, the both sides of press strip just in time are pressed on the inclined-plane of adjacent two permanent magnets, and are fastened on the yoke with screw.
2. a kind of used for electric vehicle drive motors p-m rotor according to claim 1, it is characterized in that: yoke section is an I-shape construction, and screw passes yoke from inside to outside press strip is strained.
3. a kind of used for electric vehicle drive motors p-m rotor according to claim 1, it is characterized in that: the cylindrical in yoke is processed with the stopper slot that is evenly distributed, and press strip just in time is embedded in the stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201190850U CN201118298Y (en) | 2007-03-26 | 2007-03-26 | Driving motor permanent magnetic rotor for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201190850U CN201118298Y (en) | 2007-03-26 | 2007-03-26 | Driving motor permanent magnetic rotor for electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118298Y true CN201118298Y (en) | 2008-09-17 |
Family
ID=39992889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201190850U Expired - Fee Related CN201118298Y (en) | 2007-03-26 | 2007-03-26 | Driving motor permanent magnetic rotor for electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118298Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882825A (en) * | 2010-05-11 | 2010-11-10 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
| CN103532256A (en) * | 2013-10-31 | 2014-01-22 | 武汉大学 | Novel wireless electric energy transmission device |
| CN106787957A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of radially fixed structure of magnetic suspension motor rotor magnetic material |
| CN106953477A (en) * | 2017-05-05 | 2017-07-14 | 苏州蒙特纳利驱动设备有限公司 | Paste the novel pressboard device of permanent magnet |
| CN110808650A (en) * | 2019-11-12 | 2020-02-18 | 中车株洲电机有限公司 | Permanent magnet fixing structure |
| 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 |
-
2007
- 2007-03-26 CN CNU2007201190850U patent/CN201118298Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882825A (en) * | 2010-05-11 | 2010-11-10 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
| CN103532256A (en) * | 2013-10-31 | 2014-01-22 | 武汉大学 | Novel wireless electric energy transmission device |
| CN103532256B (en) * | 2013-10-31 | 2016-09-14 | 武汉大学 | A kind of novel radio power transfer |
| CN106787957A (en) * | 2016-12-19 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of radially fixed structure of magnetic suspension motor rotor magnetic material |
| CN106953477A (en) * | 2017-05-05 | 2017-07-14 | 苏州蒙特纳利驱动设备有限公司 | Paste the novel pressboard device of permanent magnet |
| CN106953477B (en) * | 2017-05-05 | 2023-09-26 | 苏州蒙特纳利驱动设备有限公司 | Permanent magnet motor device |
| CN110808650A (en) * | 2019-11-12 | 2020-02-18 | 中车株洲电机有限公司 | Permanent magnet fixing structure |
| CN110808650B (en) * | 2019-11-12 | 2020-09-01 | 中车株洲电机有限公司 | Permanent magnet fixing structure |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201118298Y (en) | Driving motor permanent magnetic rotor for electric car | |
| US9515539B2 (en) | Three-phase electric motor with a low detent torque | |
| JP4729551B2 (en) | Axial gap type motor | |
| CN201286055Y (en) | Salient pole permanent magnet synchronous motor | |
| US20100072850A1 (en) | Axial gap type rotating machine | |
| EP1239569A2 (en) | Magnet rotor and high-output AC machine having the same | |
| CN103219823B (en) | A kind of wheel rim drive-type counteraction flyback | |
| CN103026586A (en) | Rotor for electric motor | |
| CN1761130A (en) | A kind of permanent magnet synchronous motor | |
| KR101070439B1 (en) | Rotor for eletromotor using permanent magnet | |
| CN102545436A (en) | Magnetic pole structure of permanent magnet synchronous direct-driven motor and design method thereof | |
| CN111446791A (en) | Permanent magnet excited electromechanical machine | |
| CN102355101A (en) | Core-free permanent magnet direct current motor with axial magnetic field for electric vehicle | |
| US20140117792A1 (en) | Rotor and rotating electric machine having the same | |
| JP2014060837A (en) | Axial gap type rotary electric machine, electrically-driven wheel chair with the rotary electric machine, and electrically-driven bicycle | |
| CN101882825A (en) | Motor rotor for electric automobile | |
| JP3569148B2 (en) | Rotating electric machine and electric vehicle using the same | |
| CN105210268B (en) | Permanent magnet submerged formula rotating electric machine and its manufacturing method | |
| CN211151651U (en) | Rotor for an electric machine and electric machine | |
| JP5479676B2 (en) | Outer rotor motor | |
| CN201717696U (en) | Motor rotor for electric automobile | |
| JP2013005595A (en) | Rotary electric machine | |
| CN215911961U (en) | Low-harmonic axial flux motor rotor and motor | |
| CN214429346U (en) | Novel multipole magnet | |
| CN203377698U (en) | Novel rotor structure of servo motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Jinqi Rane-Earth Motor Co., Ltd., Shenzhen Li Huiying Document name: Notification that Entitlement to Patent Deemed Abandoned |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Haiqun Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 |