CN201663529U - Outer rotor permanent magnet synchronous motor with higher power - Google Patents
Outer rotor permanent magnet synchronous motor with higher power Download PDFInfo
- Publication number
- CN201663529U CN201663529U CN2009201818816U CN200920181881U CN201663529U CN 201663529 U CN201663529 U CN 201663529U CN 2009201818816 U CN2009201818816 U CN 2009201818816U CN 200920181881 U CN200920181881 U CN 200920181881U CN 201663529 U CN201663529 U CN 201663529U
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- China
- Prior art keywords
- permanent magnet
- outer rotor
- rotor permanent
- magnet motor
- end cap
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- Permanent Magnet Type Synchronous Machine (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model provides an outer rotor permanent magnet synchronous motor with higher power, which comprises a fixed shaft, an inner stator and an outer rotor, wherein the fixed shaft, the inner stator and the outer rotor are arranged from inside to outside, the inner stator comprises an inclined spline, a plurality of stator punching sheets and a punching fixing part, and the outer rotor comprises an outer rotor magnetic circuit structure, a cage type starting winding, two end caps and a magnetic isolating jacket. The outer rotor permanent synchronous motor is a higher-power motor and can supply power to large-sized two-wheeled or four-wheeled driven electric motor coaches, the existing coaches utilizing motors rather than fuel as power sources, thereby being capable of reducing carbon emission and enhancing environmental protection. In addition, the outer rotor permanent magnet synchronous motor can also be applied to relative industries.
Description
[technical field]
The utility model relates to a kind of motor, particularly a kind of more high-power outer rotor permanent magnet motor as 15KW to 20KW.
[background technology]
The outer-rotor structure motor of domestic use only is more common in single-phase electrical micro-machine (about 50W is to hundreds of W) and electric bicycle or the automobile-used series excitation DC motor (all below 3KW) of electric motorcycle.Yet there are no about the outer rotor permanent magnet motor of more high-power outer-rotor structure motor, particularly 15KW to 20KW and to report for work, also do not see on the market and used.
In addition, present passenger vehicle all uses fuel oil as power source, nowadays a large amount of passenger vehicle operations is arranged, certainly will cause the discharge capacity of carbon to increase, be unfavorable for environmental protection, the state basic policy that reduces carbon emission with China is incompatible, provide power source if can change it for motor, can solve environmental issue to a certain extent, therefore, be necessary to research and develop a kind of more powerful motor that the passenger vehicle operation provides power source that can be.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of more powerful outer rotor permanent magnet motor, and its power reaches and can be large-scale two and take turns or the four-wheel drive electric motor coach provides the power support.
The utility model is achieved in that a kind of more powerful outer rotor permanent magnet motor, comprises the fixed axis, an internal stator and the external rotor that are provided with from inside to outside, and described internal stator comprises: a spline is fixed on the described fixed axis; The plural pieces stator punching axially is set on the described oblique spline after the stack; And a punching fixture, axial locking plural pieces stator punching; Described external rotor comprises: an external rotor magnetic structure, comprise yoke, permanent magnet, magnetic boots that ecto-entad is provided with, and be distributed with on the described magnetic boots as the mouse cage winding that starts winding and damping action; Two end cap rotatably is set on the described fixed axis, and lays respectively at the two ends of described external rotor magnetic structure, drives the rotation of external rotor mechanism; And one every the magnetic overcoat, is set in the outside of described external rotor magnetic structure regularly, and between two end cap.
Preferable, described spline is an oblique spline, its key body and keyway and direction of principal axis have certain inclination angle, and after making stator punching be set on this oblique spline, stator winding equates with described inclination angle with axial angle; The outer shroud of described plural pieces stator punching has the skewed slot of the half opening that is used to settle described stator winding, and this skewed slot equates with described inclination angle with axial angle; Described inclination angle is 0 ° 34 '.The oblique spline that employing has certain inclination angle finally can make stator winding have constant slope, when motor operation, can reduce harmonic wave moment, thereby improves motor dynamic operation performance.
Preferable, the yoke in the described external rotor magnetic structure, permanent magnet, magnetic boots are fixed by a double-purpose key, and this double-purpose key is that to have the NULL of certain rigidity made, and its nexine is a phenolic laminated sheet, and skin is No. 45 steel.The use of double-purpose key can be fixed yoke, permanent magnet, magnetic boots on the one hand, also has every the magnetic effect on the other hand.Further, for realizing that power of electric motor is 15KW, the quantity of described stator punching is about 380, and every thickness is 0.5mm; Described yoke is the magnetic shield circle; Making the quantity of the described permanent magnet of motor 15KW is 2 pairs, is the tile type structure of NTP material, and its sectional area is 214.5cm
2, length is 20cm, and the interior ring of described magnetic boots is provided with 28 half opening flat-bottom slots, and described mouse cage winding is 28 aluminum strips that are embedded in described 28 half opening flat-bottom slots; The quantity of described double-purpose key is 4.
Preferable, the gap size in the monnolithic case size of described motor and the wheel hub of passenger vehicle adapts, and can whole place in the wheel hub of passenger vehicle, and leaves certain space in order to air-cooled; Wherein, described two end cap is inner end cap and outer end cap, and inner end cap is connected with the disk brake of vehicle body, can directly brake motor by disk brake; Outer end cap directly is connected on the automotive hub by universal driving shaft, with the drive wheels rotation, and need not by deceleration device, reduces the complexity of mechanism.
Preferable, an end of the contiguous described inner end cap of described fixed axis is fixed on the vehicle body by a firm banking, to realize maintaining static of fixed axis.Described punching fixture comprises a plurality of bolts and two pressing plates, and this two pressing plate is located at the two ends of described plural pieces stator punching, and these a plurality of bolt shaft are to passing bolt hole default on described plural pieces stator punching and two pressing plates.With simple realization axial locking plural pieces stator punching.
Advantage of the present utility model is: it is the bigger motor of a kind of power, enough take turns or the four-wheel drive electric motor coach provides the power support for large-scale two, changing existing passenger vehicle is that motor is a power source with the fuel oil power source, can reduce the discharge capacity of carbon, environmental protection more; Also can be applied to other need be than the occasion of high power motor.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 a is the structural representation of internal stator of the present utility model.
Fig. 1 b is the A-A cutaway view of Fig. 1 a.
Fig. 1 c is the B-B cutaway view of Fig. 1 a.
Fig. 2 a is the structural representation of external rotor of the present utility model.
Fig. 2 b is the A-A cutaway view of Fig. 2 a.
Fig. 2 c is that end view drawing is looked on the right side of Fig. 2 a.
Fig. 3 a is a radial cross-section of motor of the present utility model.
Fig. 3 b is the cutaway view along A-O-A of Fig. 3 a.
[embodiment]
See also shown in Fig. 1 a to Fig. 3 b, motor of the present utility model is more powerful outer rotor permanent magnet motor, comprises the fixed axis 1, an internal stator 2 and the external rotor 3 that are provided with from inside to outside.
Please consult Fig. 1 a to Fig. 1 c by emphasis, described internal stator 2 comprises a spline 21, plural pieces stator punching 22 and a punching fixture 23, and described spline 21 is fixed on the described fixed axis 1; Described plural pieces stator punching 22 axially is set on the described spline 21 after the stack; Described punching fixture 23, comprise a plurality of bolts 231 and two pressing plates 232, this two pressing plate 232 is located at the two ends of described plural pieces stator punching 22, these a plurality of bolts 231 (present embodiment is the bolt of 5 even cloth) axially pass bolt hole 221 default on described plural pieces stator punching 22 and two pressing plates 232, can simple realization axial locking plural pieces stator punching 22.Preferable, described spline 21 can be set to an oblique spline, be about to its key body and keyway and direction of principal axis and have certain inclination angle, and the stator punching 22 that is set on this oblique spline is equated with described inclination angle with axial angle; The outer shroud of described plural pieces stator punching 22 has the skewed slot 222 of the half opening that is used to settle described stator winding (not shown), and this skewed slot 222 equates with described inclination angle with axial angle; Described inclination angle is 0 ° 34 '.The oblique spline that employing has certain inclination angle finally can make stator winding have constant slope, when motor operation, can reduce harmonic wave moment, thereby improves motor dynamic operation performance.
Please consult Fig. 2 a to Fig. 2 c by emphasis, described external rotor 3 comprises that an external rotor magnetic structure 31, two end cap 32 and are every magnetic overcoat 33, described two end cap 32 is inner end cap 321 and outer end cap 322, described external rotor magnetic structure 31 further comprises yoke 311, permanent magnet 312, the magnetic boots 313 that ecto-entad is provided with, and this yoke 311, permanent magnet 312, magnetic boots 313 are fixed by a double-purpose key 314.Be distributed with mouse cage winding 315 on the described magnetic boots 313, this mouse cage winding 315 when electric motor starting as starting winding, and when motor runs well as damping winding; Described two end cap 32 rotatably is set on the described fixed axis 1 by a secondary single-row garden taper roller bearing, and lays respectively at the two ends of described external rotor magnetic structure 31, and when rotating to be implemented in external rotor 3, fixed axis 1 can not rotate; Describedly be set in the outside of described external rotor magnetic structure 31 regularly every magnetic overcoat 33, and between two end cap 32.Described double-purpose key 314 is made for the NULL with certain rigidity, and its nexine is a phenolic laminated sheet, and skin is No. 45 steel, and the use of this double-purpose key 314 can be fixed yoke 311, permanent magnet 312, magnetic boots 313 on the one hand, also has every the magnetic effect on the other hand.
Based on said structure, can realize the outer rotor permanent magnet motor of more high-power (15 to 20KW), outer rotor permanent magnet motor with the 15KW hub-type is an example below, the outer rotor permanent magnet motor of this 15KW hub-type provides power source for the operation of passenger vehicle, and its important technological parameters requires as follows:
Rated power: P
N=15KW;
The number of phases: M=3 phase;
Rated line voltage: V
NL=380V;
Nominal torque: T
N=95.49NM;
Rated speed: n
N=1500rpm; Directly driving to take turns F-Zero can reach: 120～180Km/h;
Efficiency eta 〉=90%.
At the above-mentioned parameter requirement, adopt following structural parameters:
The quantity of described stator punching 22 is about 380, and every thickness is 0.5mm;
The quantity of described permanent magnet 312 is 2 pairs, is the tile type structure, and its sectional area is 214.5cm
2, length is 20cm;
The interior ring of described magnetic boots 313 is provided with 28 half opening flat-bottom slots 316;
Described mouse cage winding 315 is for being embedded in 28 aluminum strips in described 28 half opening flat-bottom slots 316;
The quantity of described double-purpose key 314 is 4;
Gap between described internal stator and the external rotor is 0.65mm.
In addition, please emphasis consult Fig. 3, the monnolithic case size of the motor of present embodiment also can adapt with the gap size in the wheel hub of passenger vehicle, can whole place in the wheel hub of passenger vehicle, to make full use of the space; Wherein, an end of the inner end cap 321 of described fixed axis 1 contiguous described two end cap 32 is fixed on the vehicle body by a firm banking 12, to realize maintaining static of fixed axis 1; Described inner end cap 321 is connected with the disk brake of vehicle body, can directly brake motor by disk brake; Outer end cap 322 is provided with universal driving shaft 323, and external rotor 3 can directly be connected on the wheel by universal driving shaft 323, with direct drive wheels, and need not by deceleration device, reduces the complexity of mechanism.
In sum, the utility model can be realized the outer rotor permanent magnet motor that a kind of power is bigger, enough take turns or the four-wheel drive electric motor coach provides the power support for large-scale two, to have passenger vehicle now and be that power source changes into the motor is power source with the fuel oil, can reduce the discharge capacity of carbon, environmental protection the utility model also can be applied to other relevant industries more.
Claims (10)
1. a more powerful outer rotor permanent magnet motor comprises the fixed axis, an internal stator and the external rotor that are provided with from inside to outside, it is characterized in that:
Described internal stator comprises:
One spline is fixed on the described fixed axis;
The plural pieces stator punching axially is set on the described spline after the stack; And
One punching fixture, axial locking plural pieces stator punching;
Described external rotor comprises:
One external rotor magnetic structure comprises yoke, permanent magnet, magnetic boots that ecto-entad is provided with, is distributed with on the described magnetic boots as the mouse cage winding that starts winding and damping winding;
Two end cap rotatably is set on the described fixed axis, and lays respectively at the two ends of described external rotor magnetic structure, drives the rotation of external rotor mechanism; And
One every the magnetic overcoat, is set in the outside of described external rotor magnetic structure regularly, and between two end cap.
2. more powerful outer rotor permanent magnet motor as claimed in claim 1, it is characterized in that: described spline is an oblique spline, its key body and keyway and direction of principal axis have certain inclination angle, and after making stator punching be set on this oblique spline, stator winding equates with described inclination angle with axial angle.
3. more powerful outer rotor permanent magnet motor as claimed in claim 2, it is characterized in that: the outer shroud of described plural pieces stator punching has the skewed slot of the half opening that is used to settle described stator winding, and this skewed slot equates with described inclination angle with axial angle.
4. more powerful outer rotor permanent magnet motor as claimed in claim 3 is characterized in that: described inclination angle is 0 ° 34 '.
5. more powerful outer rotor permanent magnet motor as claimed in claim 1 is characterized in that: the yoke in the described external rotor magnetic structure, permanent magnet, magnetic boots are fixed by a double-purpose key, and this double-purpose key is that to have the NULL of certain rigidity made.
6. more powerful outer rotor permanent magnet motor as claimed in claim 5 is characterized in that: the quantity of described stator punching is about 380, and every thickness is 0.5mm; Described yoke is the magnetic shield circle; The quantity of described permanent magnet is 2 pairs, is the tile type structure of NTP material, and its sectional area is 214.5cm
2, length is 20cm, and the interior ring of described magnetic boots is provided with 28 half opening flat-bottom slots, and described mouse cage winding is 28 aluminum strips that are embedded in described 28 half opening flat-bottom slots; The quantity of described double-purpose key is 4, and the nexine of this double-purpose key is a phenolic laminated sheet, and skin is No. 45 steel.
7. more powerful outer rotor permanent magnet motor as claimed in claim 1 is characterized in that: the gap size in the monnolithic case size of described motor and the wheel hub of passenger vehicle adapts, and leaves certain air-cooled space.
8. more powerful outer rotor permanent magnet motor as claimed in claim 7 is characterized in that: described two end cap is inner end cap and outer end cap, and inner end cap is connected with the disk brake of vehicle body; Outer end cap directly is connected on the automotive hub by universal driving shaft, the drive wheels rotation; Described fixed axis is fixed on the vehicle body by a firm banking.
9. more powerful outer rotor permanent magnet motor as claimed in claim 1, it is characterized in that: described punching fixture comprises a plurality of bolts and two pressing plates, this two pressing plate is located at the two ends of described plural pieces stator punching, and these a plurality of bolt shaft are to passing a plurality of bolts hole default on described plural pieces stator punching and two pressing plates.
10. more powerful outer rotor permanent magnet motor as claimed in claim 1 is characterized in that: the gap between described internal stator and the external rotor is 0.65mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201818816U CN201663529U (en) | 2009-12-28 | 2009-12-28 | Outer rotor permanent magnet synchronous motor with higher power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201818816U CN201663529U (en) | 2009-12-28 | 2009-12-28 | Outer rotor permanent magnet synchronous motor with higher power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201663529U true CN201663529U (en) | 2010-12-01 |
Family
ID=43233948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201818816U Expired - Fee Related CN201663529U (en) | 2009-12-28 | 2009-12-28 | Outer rotor permanent magnet synchronous motor with higher power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201663529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104305A (en) * | 2010-12-28 | 2011-06-22 | 芜湖瑞科技术有限公司 | Starting-generating integrated motor and control method thereof |
-
2009
- 2009-12-28 CN CN2009201818816U patent/CN201663529U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104305A (en) * | 2010-12-28 | 2011-06-22 | 芜湖瑞科技术有限公司 | Starting-generating integrated motor and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20131228 |