CN102158000A - Electric vehicle motor - Google Patents
Electric vehicle motor Download PDFInfo
- Publication number
- CN102158000A CN102158000A CN2011100613967A CN201110061396A CN102158000A CN 102158000 A CN102158000 A CN 102158000A CN 2011100613967 A CN2011100613967 A CN 2011100613967A CN 201110061396 A CN201110061396 A CN 201110061396A CN 102158000 A CN102158000 A CN 102158000A
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- Prior art keywords
- magnet steel
- electric vehicle
- stator
- vehicle motor
- convex body
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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)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses an electric vehicle motor, which is used for solving the problem that the magnetic steel consumption in an existing electric vehicle motor is large and the manufacturing cost is high. The electric vehicle motor comprises a stator and an annular rotor, wherein the rotor is provided with a plurality of magnetic steels, and the stator is provided with wire windings. The electric vehicle motor is characterized in that the rotor is provided with an annularly fixed ring made from a permeability material; the inner circumference of the fixed ring is provided with a plurality of convex bodies and fixed grooves; the convex bodies and the fixed ring which are made from the same material are connected into a whole; the fixed grooves and the convex bodies are arranged at intervals; one magnetic steel is fixedly arranged inside each fixed groove; and the same-side ends of all the magnetic steels are same in polarity.
Description
Technical field
The present invention relates to a kind of electric vehicle motor, relate in particular to a kind of stator and rotor of comprising, rotor is provided with the electric vehicle motor of magnet steel.
Background technology
Disclose in China's utility model patent (publication number CN201717691U) and pasted formula magnet steel circle between a kind of electric vehicle motor rotor, comprise the magnet steel circle that is installed in the electric vehicle hub, magnet steel circle inwall is installed magnetic links, leave equidistant interval S between described each sheet magnetic links, described magnet steel circle inwall is shaped on the plano-convex platform, the plano-convex platform contacts with magnetic links, and is shaped on the plano-convex platform and leads the glue groove.The sheet number of the described magnetic links of this programme is constant, but the narrowed width of each sheet magnetic links, reserved spacing, according to the motor of different size and power, its spacing also has nothing in common with each other.Had and to have reduced the consumption of magnetic links after the spacing, thereby reduced cost; The active area of magnetic links be can reduce simultaneously, and alternation loss and no-load current between the magnetic links reduced; And after the narrowed width of each sheet magnetic links, the slit between magnetic links and the magnet steel circle diminishes, and makes stickup firm.Magnetic links contacts with magnet steel circle inwall plano-convex platform, and is shaped on the plano-convex platform and leads the glue groove, improves bonding reliability.
The number of the magnet steel of arranging and the epitrochanterian magnet steel number of common electric machine difference are little on this rotor, do not embody the effect that the magnet steel consumption is saved.
Summary of the invention
For overcoming above-mentioned defective, the technical issues that need to address of the present invention are: a kind of electric vehicle motor is provided, can effectively saves the consumption of magnet steel, reduce the motor manufacturing cost, save rare earth resources.
For achieving the above object, the technical solution used in the present invention: a kind of electric vehicle motor, comprise stator and circular rotor, rotor is provided with some magnet steel, stator is provided with the lead winding, it is characterized in that, described rotor is provided with the annular retainer plate of being made by permeability magnetic material, the retainer plate inner peripheral surface is provided with some convex bodys and holddown groove, convex body and retainer plate are that homogeneous material is connected as a single entity, holddown groove and convex body are provided with at interval, and every holddown groove internal fixation has a described magnet steel, and all magnet steel are all identical with the polarity of side.The manufacturing materials of retainer plate generally is a pure iron, after in magnet steel is fixed on holddown groove, magnetic conduction because of retainer plate, and make that the convex body adjacent with magnet steel also had magnetic, convex body is equivalent to magnet steel, and convex body is opposite with the polarity of side with adjacent magnet steel towards the end of stator polarity, forms magnetic loop between magnet steel and the adjacent convex body.All magnet steel are all identical with the polarity of side, this be based on retainer plate radially on consider, promptly all magnet steel are all identical towards the end of stator polarity, the polarity of all magnet steel other ends is also identical.
As preferably, described retainer plate and rotor constitute a monomer.Rotor is made by permeability magnetic material, and is simple in structure, easy to process.
As preferably, the floor space of described holddown groove is 5/4 to 5/3 with convex body towards the ratio of the end area of stator.The magnetic of magnet steel is after derive the bottom surface of holddown groove, magnetic can be derived towards two convex bodys adjacent with magnet steel, be less than the floor space of holddown groove towards the end area of stator, this helps the conduction of magnetic, make convex body little with the magnetic intensity difference of side towards the magnetic intensity and the magnet steel of the end of stator, thus the stability can effectively improve machine operation the time.
As preferably, described convex body is a cambered surface towards the end face of stator, and magnet steel is the plane towards the end face of stator.This end face of convex body is a cambered surface, and this cambered surface has magnet accumulating cap on the one hand, and the magnetic resistance when remedying the retainer plate magnetic conduction makes this end face of convex body approaching to the magnetic action of rotor with side to the magnetic action and the magnet steel of rotor, has improved the stability of machine operation; Also make this end face of convex body can adapt to the rotation of rotor on the other hand.
As preferably, the described end face of all convex bodys is in same periphery.This makes convex body can adapt to the rotation of rotor well, is convenient to the end face of convex body is processed.
As preferably, described convex body is " protruding " font, and its little head end is towards described stator.This makes and forms the gap between little head end of convex body and the magnet steel, directly forms magnetic flux in order to avoid convex body is held because of both contact the convex body microcephaly with magnet steel, has improved the magnetic action effect of rotor to stator.
As preferably, described convex body has at interval between the end of stator and described magnet steel, and this is at interval between 0.4 millimeter to 0.6 millimeter.This is configured to described numerical value at interval, can guarantee effectively that enough the action of a magnetic fields to stator, have guaranteed the operating efficiency of motor.
As preferably, the bottom surface of all holddown grooves and same periphery are tangent or in this same periphery.The bottom surface of holddown groove is plane or arc surface, and the position relation between they and the same periphery can be so that after magnet steel was fixed in the holddown groove, the position consistency of all magnet steel on retainer plate be good, makes the magnetic field intensity high conformity that each place of rotor produces.
As preferably, described magnet steel deviates from an end face of stator and fit in the bottom surface of holddown groove, is provided with adhesive layer between the side of the side of magnet steel and holddown groove.The bottom surface of described end face of magnet steel and holddown groove fits, and this is convenient to the magnetic conduction of retainer plate, and adhesive layer is arranged on described position, makes the side of magnet steel side and convex body be opened by obstruct, has improved the magnetic conduction efficient of retainer plate.
Beneficial effect of the present invention is:
1, owing to compartment of terrain on the retainer plate of being made by permeability magnetic material is provided with holddown groove and convex body, under the magnetic conduction effect of retainer plate, convex body is equivalent to magnet steel, thereby has also just saved the consumption of magnet steel effectively, help reducing the manufacturing cost of motor, saved valuable rare earth resources.
2, by the structural design to retainer plate, the feasible work requirements that has reduced the motor of magnet steel consumption can guarantee, and is little to the service behaviour influence of motor.
Description of drawings
Fig. 1 is the broken section figure structure schematic representation of electric vehicle motor rotor of the present invention, shows that for clear magnet steel among the figure in the holddown groove is not put entirely.
Fig. 2 is the structure for amplifying schematic diagram of convex body.
Embodiment
The structure of electric vehicle motor of the present invention comprises stator and rotor, and stator is provided with the lead winding, and the lead-out wire of lead winding passes wheel shaft; Rotor is provided with along its circumferential uniform magnet steel 3.All magnet steel 3 are all identical towards the end of stator polarity, and promptly they are the S utmost point or the N utmost point.
Rotor is provided with the retainer plate 1 of ring-type, and retainer plate 1 is fabricated from iron.Retainer plate 1 is that homogeneous material is connected as a single entity with rotor, and in fact they constitute a monomer spare.
Be provided with some convex bodys 4 and holddown groove 2 on the inner peripheral surface of retainer plate 1, convex body 4 is connected as a single entity for homogeneous material with retainer plate 1.Convex body 4 is radially inwardly outstanding along retainer plate 1, and holddown groove 2 is radially outward recessed along retainer plate 1.Convex body 4 is consistent with the number of holddown groove 2, and they are intervally installed.Described magnet steel 3 is arranged in the holddown groove 2, and magnet steel 3 deviates from an end face of stator and the bottom surface of holddown groove 2 fits, and is provided with adhesive layer between the side of magnet steel 3 sides and holddown groove 2, and adhesive layer makes and is connected firmly between magnet steel 3 and the holddown groove 2.
The bottom surface of holddown groove 2 can arc, also can be the plane.When the bottom surface of holddown groove 2 was cambered surface, the bottom surface of all holddown grooves 2 all was positioned at same periphery, and this periphery is coaxial with retainer plate 1.When the bottom surface of holddown groove 2 was the plane, the bottom surface of all holddown grooves 2 was all tangent with same periphery, and this periphery is coaxial with retainer plate 1.
Magnet steel 3 is generally the plane towards an end face of stator, and convex body 4 is a cambered surface towards an end face of stator, and this end face of all convex bodys 4 all is positioned at same periphery, and this periphery is coaxial with retainer plate 1.
Convex body 4 is " protruding " font, and the little head end of convex body 4 is towards stator.At convex body 4 microcephaly's end places, have certain interval between convex body 4 and magnet steel 3 sides, this between 0.4 millimeter to 0.6 millimeter, is preferably 0.5 millimeter at interval.Empirical tests, when this is designed to 0.5 millimeter at interval, magnet steel 3 and convex body 4 towards the magnetic field intensity difference of stator terminal in 6%.And the side of magnet steel 3 is fully and the side of holddown groove 2 when fitting, magnet steel 3 and convex body 4 towards the magnetic field intensity difference of stator terminal about 20%.
The floor space of holddown groove 2 and convex body 4 towards the ratio of the end area of stator between 5/4 to 5/3, the ratio of their area is preferably 3/2, the floor space of holddown groove 2 is greater than the end area of convex body 4 towards stator, this has improved the magnetic conduction amount of retainer plate 1, can subdue some influences that because of magnetic resistance the machine operation performance brought in the retainer plate 1 magnetic conduction process.
Claims (9)
1. electric vehicle motor, comprise stator and circular rotor, rotor is provided with some magnet steel, stator is provided with the lead winding, it is characterized in that, described rotor is provided with the annular retainer plate of being made by permeability magnetic material (1), retainer plate (1) inner peripheral surface is provided with some convex bodys (4) and holddown groove (2), convex body (4) is connected as a single entity for homogeneous material with retainer plate (1), holddown groove (2) and convex body (4) are provided with at interval, every holddown groove (2) internal fixation has a described magnet steel (3), and all magnet steel (3) are all identical with the polarity of side.
2. electric vehicle motor according to claim 1 is characterized in that, described retainer plate (1) and rotor constitute a monomer.
3. electric vehicle motor according to claim 1 is characterized in that, the floor space of described holddown groove (2) and convex body (4) are 5/4 to 5/3 towards the ratio of the end area of stator.
4. according to claim 1,2 or 3 described electric vehicle motors, it is characterized in that described convex body (4) is a cambered surface towards the end face of stator, magnet steel (3) is the plane towards the end face of stator.
5. electric vehicle motor according to claim 4 is characterized in that, the described end face of all convex bodys (4) is in same periphery.
6. according to claim 1,2 or 3 described electric vehicle motors, it is characterized in that described convex body (4) is " protruding " font, its little head end is towards described stator.
7. electric vehicle motor according to claim 6 is characterized in that, described convex body (4) has between the end of stator and described magnet steel (3) at interval, and this is at interval between 0.4 millimeter to 0.6 millimeter.
8. electric vehicle motor according to claim 1 is characterized in that, bottom surface of all holddown grooves (2) and same periphery are tangent or in this same periphery.
9. electric vehicle motor according to claim 8 is characterized in that, described magnet steel (3) deviates from the bottom surface of end face of stator and holddown groove (2) fits, and is provided with adhesive layer between the side of the side of magnet steel (3) and holddown groove (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100613967A CN102158000A (en) | 2011-03-15 | 2011-03-15 | Electric vehicle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100613967A CN102158000A (en) | 2011-03-15 | 2011-03-15 | Electric vehicle motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102158000A true CN102158000A (en) | 2011-08-17 |
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ID=44439248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100613967A Pending CN102158000A (en) | 2011-03-15 | 2011-03-15 | Electric vehicle motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102158000A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
| CN103036372A (en) * | 2012-12-05 | 2013-04-10 | 信质电机股份有限公司 | Machining method of motor rotor magnetic steel ring of electric vehicle |
| CN105449941A (en) * | 2015-12-30 | 2016-03-30 | 信质电机股份有限公司 | Magnetic steel ring winding machine of brushless electric machine |
| CN107171525A (en) * | 2017-06-21 | 2017-09-15 | 江苏雅迪科技发展有限公司宁波分公司 | Permanent-magnet synchronous wheel hub motor and electric car |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181894Y (en) * | 2008-03-27 | 2009-01-14 | 杨娜 | Permanent-magnet frequency-conversion full-power electric motor |
| CN201336592Y (en) * | 2008-12-12 | 2009-10-28 | 阳西县电梯配件有限公司 | Permanent-magnetic motor |
| CN101895161A (en) * | 2009-05-20 | 2010-11-24 | 阿斯莫有限公司 | Rotor and motor |
-
2011
- 2011-03-15 CN CN2011100613967A patent/CN102158000A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181894Y (en) * | 2008-03-27 | 2009-01-14 | 杨娜 | Permanent-magnet frequency-conversion full-power electric motor |
| CN201336592Y (en) * | 2008-12-12 | 2009-10-28 | 阳西县电梯配件有限公司 | Permanent-magnetic motor |
| CN101895161A (en) * | 2009-05-20 | 2010-11-24 | 阿斯莫有限公司 | Rotor and motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001360A (en) * | 2012-11-19 | 2013-03-27 | 吴正林 | Permanent magnet reluctance type in-wheel motor |
| CN103036372A (en) * | 2012-12-05 | 2013-04-10 | 信质电机股份有限公司 | Machining method of motor rotor magnetic steel ring of electric vehicle |
| CN105449941A (en) * | 2015-12-30 | 2016-03-30 | 信质电机股份有限公司 | Magnetic steel ring winding machine of brushless electric machine |
| CN105449941B (en) * | 2015-12-30 | 2017-12-12 | 信质电机股份有限公司 | Brushless electric machine magnetic steel ring up- coiler |
| CN107171525A (en) * | 2017-06-21 | 2017-09-15 | 江苏雅迪科技发展有限公司宁波分公司 | Permanent-magnet synchronous wheel hub motor and electric car |
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Application publication date: 20110817 |