CN103560634B - Internal permanent magnet synchronous motor used for electric vehicle - Google Patents
Internal permanent magnet synchronous motor used for electric vehicle Download PDFInfo
- Publication number
- CN103560634B CN103560634B CN201310572862.7A CN201310572862A CN103560634B CN 103560634 B CN103560634 B CN 103560634B CN 201310572862 A CN201310572862 A CN 201310572862A CN 103560634 B CN103560634 B CN 103560634B
- Authority
- CN
- China
- Prior art keywords
- tooth
- stator
- increment
- groove
- category
- 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.)
- Active
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 69
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 230000010358 mechanical oscillation Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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 Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of internal permanent magnet synchronous motor used for electric vehicle, relates to technical field of motors, and what solve is the technical problem reducing motor torque ripple.This motor comprises stators and rotators, described stator in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot, the notch of described stator slot is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, the increment end face of stator tooth is the flank of tooth of stator tooth, the quantity of stator tooth is the multiple of three, the flank of tooth of each stator tooth all offers at least one increment groove, described increment groove semicircular in shape in the radial section of stator tooth, and the notch of increment groove is towards the track ring heart, quantity and/or the installation position of the increment groove on adjacent stators tooth are different each other.Motor provided by the invention, can reduce motor torque ripple, and production technology is simple.
Description
Technical field
Cogging torque also claims magnetic resistance moment, it is critical defect in the governing system of automation occasion, electromechanical integration occasion, magnetic resistance moment and cogging torque fluctuation comparatively large, power of motor density can be caused low, and high speed constant power bracket is narrow, overload capacity is low and the defect such as poor reliability.
Background technology
Fig. 5 is the d axle of internal permanent magnet synchronous motor used for electric vehicle, q axle schematic diagram, as shown in Figure 5, very little (magnetic resistance is very large through magnetic permeability for d axle (d-axis) magnetic flux of motor, close to air) permanent magnet 53, therefore d axle inductance L d is less, q axle (quadrature axis) magnetic flux of motor is through the rotor core 52 of magnetic permeability very large (magnetic resistance is very little), therefore q axle inductance L q is larger, internal permanent magnet synchronous motor rotor is typical salient-pole structure, saliency (convex grey subset) is remarkable, quadrature axis inductance is greater than d-axis inductance (Lq > Ld), make motor superposition reluctance torque on the basis of permanent-magnet torque, the having of reluctance torque helps the starting characteristic improving motor, overload capacity and power density, be easy to weak-magnetic speed-regulating, expand invariable power scope to run.
The torque of motor is:
In formula: T is torque, P is number of pole-pairs,
for magnetic linkage,
for d-axis inductance,
for quadrature axis inductance,
for direct-axis current,
for quadrature axis current,
for electromagnetic torque,
for reluctance torque;
Fig. 6 is the radial section schematic diagram of internal type V permagnetic synchronous motor used for electric vehicle, and Fig. 6 a is wherein the radial section schematic diagram of rotor, and Fig. 6 b is radial load schematic diagram, and Fig. 6 c is the radial load schematic diagram of d axle, and Fig. 6 d is the radial load schematic diagram of q axle;
As shown in Figure 6 a, V-type diametrical magnetization rectangular strip magnet steel 621 is evenly set in permanent magnetism groove, with pole shoe 622 magnetic poles;
As shown in Figure 6 b, magnet steel radial center angle is φ 1, and polar arc angle is 2 φ 2, and magnetic pole radial center line is d axle, and interpolar center line is q axle;
From Fig. 6 c and Fig. 6 d: d axle permanent magnet flux density high, the radial load produced with the flank of tooth of stator tooth is large, q axle permanent magnet flux density is low, the radial load produced with the flank of tooth of stator tooth is little, because d axle, q axle are in radial load difference and change that the stator tooth flank of tooth produces, the mechanical oscillation that when motor is run, generation is larger, noise and torque fluctuations.
Reduce motor torque ripple and can improve motor performance, the method of existing reduction motor torque ripple mainly contains mark channel process, auxiliary channel process, auxiliary tooth method, skewed slot method, tiltedly pole method, channel process of remaining silent and magnetization slot wedge method etc., these methods cut both ways, but are always difficult to effectively eliminate slot effect.Improve the first-harmonic number of times (frequency) of cogging torque fluctuation, just can effectively reduce teeth groove first-harmonic and high order harmonic component torque amplitude, reduce the torque fluctuations that teeth groove causes, for a long time, reducing one of measure of torque fluctuations is exactly increase number of stator slots, improves the first-harmonic number of times (frequency) of cogging torque fluctuation, but such complex manufacturing, stator slot roll off the production line difficulty increase, efficiency also reduces; Reduce the measure of torque fluctuations two is exactly skewed stator core slot (angle that stator core axial torsion is certain), but makes complex manufacturing equally like this, and stator slot area is reduced, and reduction is exerted oneself, and loses more than gain.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention is to provide one can reduce motor torque ripple, and the simple internal permanent magnet synchronous motor used for electric vehicle of production technology.
In order to solve the problems of the technologies described above, one provided by the present invention internal permanent magnet synchronous motor used for electric vehicle, comprise stators and rotators, in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot to described stator, and the notch of described stator slot is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, the increment end face of stator tooth is the flank of tooth of stator tooth, and the quantity of stator tooth is the multiple of three, it is characterized in that:
The flank of tooth of each stator tooth all offers at least one increment groove, described increment groove semicircular in shape in the radial section of stator tooth, and the notch of increment groove is towards the track ring heart, quantity and/or the installation position of the increment groove on adjacent stators tooth are different each other.
Further, each stator tooth is divided into three classes, and be respectively category-A tooth, category-B tooth, C class tooth, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth, category-B tooth, this order of C class tooth;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth, C class tooth respectively have an increment groove, category-B tooth has two increment grooves, the increment groove of category-A tooth is laid in the second cloth groove point, and two increment grooves of category-B tooth are laid in the first cloth groove point, the 3rd cloth groove point respectively, and the increment groove of C class tooth is laid in the 3rd cloth groove point.
Further, the quantity of described stator slot has 12 or 18 or 24.
Further, the quantity of described stator tooth is the multiple of four;
Each stator tooth is divided into four classes, and be respectively category-A tooth, category-B tooth, C class tooth, D class tooth, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth, category-B tooth, D class tooth, this order of C class tooth;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth, C class tooth, D class tooth respectively have an increment groove, category-B tooth has two increment grooves, the increment groove of category-A tooth is laid in the second cloth groove point, two increment grooves of category-B tooth are laid in the first cloth groove point, the 3rd cloth groove point respectively, the increment groove of C class tooth is laid in the 3rd cloth groove point, and the increment groove of D class tooth is laid in the first cloth groove point.
Further, the quantity of described stator slot has 24.
Further, the radial section of described stator slot has following feature: bottom land two bight of stator slot has chamfering, and stator slot has a center line, and the radial section of stator slot through the axle center of rotor, and is divided into symmetrical two halves by this center line.
Further, the fillet surface in bottom land two bight of described stator slot is intersected in the center line of stator slot.
Internal permanent magnet synchronous motor used for electric vehicle provided by the invention, semicircular increment groove is offered at the flank of tooth of each stator tooth, be equivalent to the stator slot quantity increasing motor, thus when reality does not increase stator slot quantity, improve the first-harmonic number of times (frequency) of cogging torque fluctuation, reduce teeth groove first-harmonic and high order harmonic component torque amplitude, reduce the torque ripple that teeth groove causes, d axle and q Axial and radial power are tended to balance, mechanical oscillation can be reduced, noise, vibration and back-emf harmonic wave, reduce core loss, realize motor efficient, high power density, high reliability, low noise, the features such as low smooth fluctuations operation, and production technology is simple.In addition, bottom land two bight of stator slot has chamfering, tooth root end stress and the saturation effects of stator tooth can be reduced, thus suppress Static and dynamic armature reaction, significantly can reduce noise when rotor high-speed runs, mechanical oscillation and stator core distortion, particularly can significantly reduce back-emf harmonic component, make effectively to reduce back-emf total harmonic distortion, be conducive to motor frequent starting, there is higher overload capacity and reliability.
Accompanying drawing explanation
Fig. 1 is the stator tooth arrangement mode schematic diagram of the internal permanent magnet synchronous motor used for electric vehicle of first embodiment of the invention;
Fig. 2 is the stator tooth arrangement mode schematic diagram of the internal permanent magnet synchronous motor used for electric vehicle of second embodiment of the invention;
Fig. 3 is the stator slot structural representation of the internal permanent magnet synchronous motor used for electric vehicle of third embodiment of the invention;
Fig. 4 is the stator slot structural representation of the internal permanent magnet synchronous motor used for electric vehicle of fourth embodiment of the invention;
Fig. 5 is d axle, the q axle schematic diagram of internal permanent magnet synchronous motor used for electric vehicle;
Fig. 6 is the radial section schematic diagram of internal type V permagnetic synchronous motor used for electric vehicle, and Fig. 6 a is wherein the radial section schematic diagram of rotor, and Fig. 6 b is radial load schematic diagram, and Fig. 6 c is the radial load schematic diagram of d axle, and Fig. 6 d is the radial load schematic diagram of q axle;
Fig. 7 is the cogging torque oscillogram of the internal permanent magnet synchronous motor used for electric vehicle of first embodiment of the invention;
Fig. 8 is the cogging torque oscillogram of existing permagnetic synchronous motor;
Fig. 9 is the characteristic working curve of existing internal permanent magnet synchronous motor used for electric vehicle;
Figure 10 is the characteristic working curve of the internal permanent magnet synchronous motor used for electric vehicle of third embodiment of the invention.
Embodiment
Illustrate below in conjunction with accompanying drawing and be described in further detail embodiments of the invention, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in.
As shown in Figure 1, the one that first embodiment of the invention provides internal permanent magnet synchronous motor used for electric vehicle, comprise stators and rotators, in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot 16 to described stator, and the notch of described stator slot 16 is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, the increment end face of stator tooth is the flank of tooth of stator tooth, and the quantity of stator tooth is the multiple of three, it is characterized in that:
The flank of tooth of each stator tooth all offers at least one increment groove 19, described increment groove 19 semicircular in shape in the radial section of stator tooth, and the notch of increment groove 19 is towards the track ring heart, quantity and/or the installation position of the increment groove 19 on adjacent stators tooth are different each other;
Each stator tooth is divided into three classes, and be respectively category-A tooth 11, category-B tooth 12, C class tooth 13, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth 11, category-B tooth 12, this order of C class tooth 13;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth 11, C class tooth 13 respectively have an increment groove, category-B tooth 12 has two increment grooves, the increment groove 19 of category-A tooth 11 is laid in the second cloth groove point, two increment grooves 19 of category-B tooth 12 are laid in the first cloth groove point, the 3rd cloth groove point respectively, and the increment groove 19 of C class tooth 13 is laid in the 3rd cloth groove point.
In first embodiment of the invention, the quantity of described stator slot 16 has 12 or 18 or 24.
The internal permanent magnet synchronous motor used for electric vehicle of first embodiment of the invention, mechanical oscillation when motor runs, noise, vibration and back-emf harmonic wave can be reduced, can core loss be reduced, can realize that motor is efficient, high power density, high reliability, low noise, low smooth fluctuations run.
Fig. 7 is the cogging torque oscillogram of the internal permanent magnet synchronous motor used for electric vehicle of first embodiment of the invention, Tcog axle (vertical pivot) in figure is cogging torque number line, θ axle (transverse axis) is motor torque angle number line, the rated power of this motor is 12KW, rated moment is 57.3Nm, synchronous speed is 2000 revs/min, and actual cogging torque peak value when recording this machine operation is 0.58Nm, and cogging torque fluctuation is 1.01%.
Fig. 8 is the cogging torque oscillogram of existing permagnetic synchronous motor, Tcog axle (vertical pivot) in figure is cogging torque number line, θ axle (transverse axis) is motor torque angle number line, the rated power of this motor is 12KW, rated moment is 57.3Nm, synchronous speed is 2000 revs/min, and actual cogging torque peak value when recording this machine operation is 6Nm, and cogging torque fluctuation is 10.47%.
The data recorded from Fig. 7, Fig. 8, the relatively existing permagnetic synchronous motor of first embodiment of the invention, cogging torque fluctuation reduces to 1.01% from 10.47%, the peak value cogging torque of motor performance is effectively suppressed, motor integrated quality is increased substantially, effectively can improve the combination property of motor, high power density, low noise, Low-torque fluctuation, wide range speed control, fast-response, frequent starting and even running can be realized, electronic, hybrid vehicle driving requirement can be met.
As shown in Figure 2, the one that second embodiment of the invention provides internal permanent magnet synchronous motor used for electric vehicle, comprise stators and rotators, in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot 26 to described stator, and the notch of described stator slot 26 is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, the increment end face of stator tooth is the flank of tooth of stator tooth, the quantity of stator tooth be the multiple of three and the quantity of stator tooth be four multiple, it is characterized in that:
The flank of tooth of each stator tooth all offers at least one increment groove 29, described increment groove 29 semicircular in shape in the radial section of stator tooth, and the notch of increment groove 29 is towards the track ring heart, quantity and/or the installation position of the increment groove 29 on adjacent stators tooth are different each other;
Each stator tooth is divided into four classes, and be respectively category-A tooth 21, category-B tooth 22, C class tooth 23, D class tooth 24, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth 21, category-B tooth 22, D class tooth 24, this order of C class tooth 23;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth 21, C class tooth 23, D class tooth 24 respectively have an increment groove, category-B tooth 22 has two increment grooves, the increment groove 29 of category-A tooth 21 is laid in the second cloth groove point, two increment grooves 29 of category-B tooth 22 are laid in the first cloth groove point, the 3rd cloth groove point respectively, the increment groove 29 of C class tooth 23 is laid in the 3rd cloth groove point, and the increment groove 29 of D class tooth 24 is laid in the first cloth groove point.
In second embodiment of the invention, the quantity of described stator slot 26 has 24.
The internal permanent magnet synchronous motor used for electric vehicle of second embodiment of the invention, mechanical oscillation when motor runs, noise, vibration and back-emf harmonic wave can be reduced, can core loss be reduced, can realize that motor is efficient, high power density, high reliability, low noise, low smooth fluctuations run.
As shown in Figure 3, the one that third embodiment of the invention provides internal permanent magnet synchronous motor used for electric vehicle, comprises stators and rotators, and in the form of a ring, its inner ring is alternately formed with multiple stator tooth 31 and multiple stator slot 32 to described stator.
The architectural feature of third embodiment of the invention is with similar with first embodiment of the invention, and third embodiment of the invention is from the distinguishing characteristics of first embodiment of the invention: the flute profile of stator slot 32 is different.
In third embodiment of the invention, the radial section of described stator slot 32 has following feature: bottom land two bight of stator slot 32 has chamfering 43, stator slot 32 has a center line X, and the radial section of stator slot 32 through the axle center of rotor, and is divided into symmetrical two halves by this center line X.
The internal permanent magnet synchronous motor used for electric vehicle of third embodiment of the invention, mechanical oscillation when motor runs, noise, vibration and back-emf harmonic wave can be reduced, can core loss be reduced, can realize that motor is efficient, high power density, high reliability, low noise, low smooth fluctuations run.
Take rated power as 12KW, rated moment is 57.3Nm, and synchronous speed is the motor of 2000 revs/min is example, through actual measurement:
The internal permanent magnet synchronous motor used for electric vehicle of third embodiment of the invention is actual to be recorded: cogging torque peak value during machine operation is 0.3Nm, and cogging torque fluctuation is 0.52%;
Existing permagnetic synchronous motor is actual to be recorded: cogging torque peak value during machine operation is 6Nm, and cogging torque fluctuation is 10.47%.
From measured data, the relatively existing permagnetic synchronous motor of third embodiment of the invention, cogging torque fluctuation reduces to 0.52% from 10.47%, the peak value cogging torque of motor performance is effectively suppressed, motor integrated quality is increased substantially, effectively can improve the combination property of motor, high power density, low noise, Low-torque fluctuation, wide range speed control, fast-response, frequent starting and even running can be realized, electronic, hybrid vehicle driving requirement can be met.
As shown in Figure 4, the one that fourth embodiment of the invention provides internal permanent magnet synchronous motor used for electric vehicle, comprises stators and rotators, and in the form of a ring, its inner ring is alternately formed with multiple stator tooth 41 and multiple stator slot 42 to described stator.
The architectural feature of fourth embodiment of the invention is with similar with first embodiment of the invention, and fourth embodiment of the invention is from the distinguishing characteristics of first embodiment of the invention: the flute profile of stator slot 42 is different.
In fourth embodiment of the invention, the radial section of described stator slot 42 has following feature: bottom land two bight of stator slot 32 has chamfering 43, stator slot 42 has a center line Y, this center line Y is through the axle center of rotor, and the radial section of stator slot 42 being divided into symmetrical two halves, the fillet surface in bottom land two bight of stator slot 42 is intersected in the center line of stator slot.
Each stator tooth in the present invention the 3rd, the 4th embodiment also can adopt stator tooth structure in second embodiment of the invention and laying mode.
The internal permanent magnet synchronous motor used for electric vehicle of the present invention first, second, third, fourth embodiment, mechanical oscillation when motor runs, noise, vibration and back-emf harmonic wave can be reduced, can core loss be reduced, can realize that motor is efficient, high power density, high reliability, low noise, low smooth fluctuations run.
The characteristic working curve of Fig. 9 to be existing rated power be internal permanent magnet synchronous motor used for electric vehicle of 11.5KW, the characteristic working curve of Figure 10 to be the rated power of third embodiment of the invention be internal permanent magnet synchronous motor used for electric vehicle of 11.5KW;
Fig. 9, Tu10Zhong, vertical pivot P is output power of motor number line, and vertical pivot I is current values axle, and vertical pivot η is efficiency numbers axle, transverse axis θ is angle of torsion number line, curve P is output power curve, and curve I is current curve, and curve η is efficiency curve, Pn is rated output power, In is rated current, and η n is rated efficiency value, and θ n is nominal torque angle;
From Fig. 9, Figure 10, existing rated power is the rated point efficiency of the internal permanent magnet synchronous motor used for electric vehicle of 11.5KW is 92%, the rated point efficiency of the internal permanent magnet synchronous motor used for electric vehicle of third embodiment of the invention is 94.35%, third embodiment of the invention compares the existing motor of same specification, and electric efficiency is obviously promoted.
Claims (4)
1. an internal permanent magnet synchronous motor used for electric vehicle, comprise stators and rotators, described stator in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot, the notch of described stator slot is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, and the increment end face of stator tooth is the flank of tooth of stator tooth, and the quantity of stator tooth is the multiple of three;
The flank of tooth of each stator tooth all offers at least one increment groove, described increment groove semicircular in shape in the radial section of stator tooth, and the notch of increment groove is towards the track ring heart, quantity and/or the installation position of the increment groove on adjacent stators tooth are different each other;
It is characterized in that: each stator tooth is divided into three classes, be respectively category-A tooth, category-B tooth, C class tooth, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth, category-B tooth, this order of C class tooth;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth, C class tooth respectively have an increment groove, category-B tooth has two increment grooves, the increment groove of category-A tooth is laid in the second cloth groove point, and two increment grooves of category-B tooth are laid in the first cloth groove point, the 3rd cloth groove point respectively, and the increment groove of C class tooth is laid in the 3rd cloth groove point.
2. internal permanent magnet synchronous motor used for electric vehicle according to claim 1, is characterized in that: the quantity of described stator slot has 12 or 18 or 24.
3. an internal permanent magnet synchronous motor used for electric vehicle, comprise stators and rotators, described stator in the form of a ring, its inner ring is alternately formed with multiple stator tooth and multiple stator slot, the notch of described stator slot is just to rotor, described stator tooth is the increment of stator tooth towards one end of the track ring heart, and the increment end face of stator tooth is the flank of tooth of stator tooth, and the quantity of stator tooth is the multiple of three;
The flank of tooth of each stator tooth all offers at least one increment groove, described increment groove semicircular in shape in the radial section of stator tooth, and the notch of increment groove is towards the track ring heart, quantity and/or the installation position of the increment groove on adjacent stators tooth are different each other;
It is characterized in that: the quantity of described stator tooth is the multiple of four;
Each stator tooth is divided into four classes, and be respectively category-A tooth, category-B tooth, C class tooth, D class tooth, the arrangement mode of each stator tooth is: along the circumference of stator, repeats category-A tooth, category-B tooth, D class tooth, this order of C class tooth;
In the radial section of stator tooth, the flank of tooth of stator tooth has three cloth groove points, these three cloth groove points are respectively the first cloth groove point, the second cloth groove point, the 3rd cloth groove point, and the circumferential equi-spaced apart of these three cloth groove points along stator on the flank of tooth of stator tooth distributes, the second cloth groove point is wherein positioned at the flank of tooth center of stator tooth;
Category-A tooth, C class tooth, D class tooth respectively have an increment groove, category-B tooth has two increment grooves, the increment groove of category-A tooth is laid in the second cloth groove point, two increment grooves of category-B tooth are laid in the first cloth groove point, the 3rd cloth groove point respectively, the increment groove of C class tooth is laid in the 3rd cloth groove point, and the increment groove of D class tooth is laid in the first cloth groove point.
4. internal permanent magnet synchronous motor used for electric vehicle according to claim 3, is characterized in that: the quantity of described stator slot has 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572862.7A CN103560634B (en) | 2013-11-18 | 2013-11-18 | Internal permanent magnet synchronous motor used for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572862.7A CN103560634B (en) | 2013-11-18 | 2013-11-18 | Internal permanent magnet synchronous motor used for electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103560634A CN103560634A (en) | 2014-02-05 |
| CN103560634B true CN103560634B (en) | 2015-11-18 |
Family
ID=50014825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310572862.7A Active CN103560634B (en) | 2013-11-18 | 2013-11-18 | Internal permanent magnet synchronous motor used for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103560634B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208590A (en) * | 2016-08-31 | 2016-12-07 | 徐州南普机电科技有限公司 | A kind of processing method of non-brush permanent-magnet DC motor |
| CN108551213A (en) * | 2018-04-04 | 2018-09-18 | 东南大学 | A method of inhibit interior permanent magnet machines to vibrate and improve torque performance |
| CN108964532A (en) * | 2018-05-31 | 2018-12-07 | 南京航空航天大学 | Three-level formula brushless synchronous machine sublevel segmentation start control system and method |
| CN110571998A (en) * | 2018-06-06 | 2019-12-13 | 舍弗勒技术股份两合公司 | Stator for permanent magnet motor and permanent magnet motor |
| CN110875679A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
| GB2590677B (en) * | 2019-12-23 | 2023-09-27 | Dyson Technology Ltd | A motor core |
| CN118017788B (en) * | 2024-04-10 | 2024-06-11 | 华东交通大学 | Permanent magnet synchronous motor structure and optimization method for electric vehicle electric drive system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841738A1 (en) * | 1996-05-24 | 1998-05-13 | Matsushita Electric Industrial Co., Ltd. | Motor |
| CN101001038A (en) * | 2006-01-13 | 2007-07-18 | 日本电产三协株式会社 | Permanent magnet type synchronous motor |
| CN101789663A (en) * | 2010-01-08 | 2010-07-28 | 李嘉琛 | Vehicle permanent magnetic synchronous motor and stator iron core capable of weakening magnetic resistance moment |
| CN202068306U (en) * | 2011-05-04 | 2011-12-07 | 浙江博望科技发展有限公司 | Three-phase permanent magnetic servo motor with void slot structure |
| CN203574518U (en) * | 2013-11-18 | 2014-04-30 | 上海特波电机有限公司 | Stator of permanent magnet synchronous motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030230947A1 (en) * | 2002-06-14 | 2003-12-18 | Islam Mohammad S. | Fault tolerant motor actuator for steer by wire system |
-
2013
- 2013-11-18 CN CN201310572862.7A patent/CN103560634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841738A1 (en) * | 1996-05-24 | 1998-05-13 | Matsushita Electric Industrial Co., Ltd. | Motor |
| CN101001038A (en) * | 2006-01-13 | 2007-07-18 | 日本电产三协株式会社 | Permanent magnet type synchronous motor |
| CN101789663A (en) * | 2010-01-08 | 2010-07-28 | 李嘉琛 | Vehicle permanent magnetic synchronous motor and stator iron core capable of weakening magnetic resistance moment |
| CN202068306U (en) * | 2011-05-04 | 2011-12-07 | 浙江博望科技发展有限公司 | Three-phase permanent magnetic servo motor with void slot structure |
| CN203574518U (en) * | 2013-11-18 | 2014-04-30 | 上海特波电机有限公司 | Stator of permanent magnet synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103560634A (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103560634B (en) | Internal permanent magnet synchronous motor used for electric vehicle | |
| CN106026597B (en) | Built-in magnetic hinders formula magnetic-field-enhanced permanent-magnetic brushless motor | |
| EP3136559B1 (en) | Permanent magnet synchronous motor and rotor thereof | |
| JP3716809B2 (en) | Rotating electric machine | |
| Li et al. | Torque improvement and cost reduction of permanent magnet machines with a dovetailed consequent-pole rotor | |
| Chen et al. | An improved analytical model for inductance calculation of interior permanent magnet machines | |
| CN103280904A (en) | Double-layer V-shaped built-in permanent magnet motor rotor for electric automobile | |
| CN105186818A (en) | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement | |
| CN203251159U (en) | Double-layer V-shaped built-in permanent magnet motor rotor for electric vehicles | |
| CN104410234A (en) | Spindle synchronous motor with wide speed regulation range for lathe | |
| CN109639001B (en) | A rotor for a synchronous reluctance motor | |
| CN104638864A (en) | Permanent magnet motor and method for accelerating rotating speed of permanent magnet motor | |
| CN105743235A (en) | High-torque low-loss permanent magnet fault-tolerant motor | |
| CN110611384B (en) | Magnetic circuit decomposition type vernier permanent magnet motor | |
| CN113890289B (en) | Design method of multi-magnetomotive permanent magnet array and flux reversal motor | |
| CN104883019A (en) | Stator permanent magnet mixed excitation vernier motor | |
| CN104467333A (en) | Rotor excitation multi-phase reluctance motor and control method thereof | |
| CN205725213U (en) | The low fluctuation slotted eye convolution p-m rotor of motor in electric automobile | |
| CN209046391U (en) | Permanent-magnetic synchronous motor rotor with air magnetic barrier | |
| Xu et al. | Reduction of unipolar leakage flux and torque ripple in consequent-pole PM vernier machine | |
| CN213693262U (en) | Linear asymmetric segmented permanent magnet synchronous motor rotor | |
| He et al. | Evaluation of fractional slot concentrated winding permanent magnet synchronous machine for electric vehicle application | |
| CN105871098A (en) | Low-fluctuation asymmetric type permanent magnetic rotor for electric vehicle motor | |
| CN203574518U (en) | Stator of permanent magnet synchronous motor | |
| Zhang et al. | Pole number selection strategy of low-speed multiple-pole permanent magnet synchronous machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |