CN206023528U - A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car - Google Patents
A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car Download PDFInfo
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- CN206023528U CN206023528U CN201620756951.6U CN201620756951U CN206023528U CN 206023528 U CN206023528 U CN 206023528U CN 201620756951 U CN201620756951 U CN 201620756951U CN 206023528 U CN206023528 U CN 206023528U
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Abstract
This utility model is related to a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car, including stator, rotor and permanent magnet, in the range of a tooth pitch, the radial section of stator tooth is divided into symmetrical two halves by a virtual line through rotor axis, increment centrage of the virtual line for stator tooth, flank of tooth edge part is scabbled along another virtual line, the virtual line scabbles line for increment, the flank of tooth edge part of described stator tooth respectively has an increment to scabble line, and it is misaligned and with increment centrage as symmetrical axial symmetry that two increments scabble line；2 flank of tooth grooves are offered on the described stator tooth flank of tooth, and flank of tooth recess axis are that the increment distance between center line of the two ends of the axis through stator center the increment centrage for being located at stator tooth, flank of tooth recess axis and stator tooth is less than 1/3 tooth pitch.Solve the problems, such as that high concentratred winding internal permanent magnet synchronous motor counter potential waveform aberration rate of the prior art, location torque and torque ripple are big.
Description
Technical field
This utility model belongs to the technical field of used in new energy vehicles power motor, and in particular to a kind of for new forms of energy car
Concentratred winding internal permanent magnet synchronous motor.
Background technology
Due to being restricted by axial space finite sum high performance demands on new energy vehicle, particularly hybrid electric vehicle
Type, typically adopts concentratred winding internal permanent magnet synchronous motor.Conventional concentratred winding internal permanent magnet synchronous motor stator tooth
Portion is that the arc section of same circle, rotor outer circle are designed as full circle, is even air gap, has the disadvantage to cause motor between rotor
Counter potential waveform aberration rate is high, location torque and the problems such as big torque ripple.Oblique using stator more than permagnetic synchronous motor at present
The shortcoming of groove, oblique pole and proximal pole groove fit structure is the manufacturing process complexity of motor, output torque decline, also brings along certain
Vibration noise problem.
Patent CN103560635 discloses a kind of low-fluctuation permanent magnetic synchronous motor used for electric vehicle, its stator teeth excellent
Turn to：Stator tooth towards rotor one end for stator tooth increment, the flank of tooth of the increment end face of stator tooth for stator tooth, stator tooth
The flank of tooth be cambered surface of the arc core towards rotor, its arc core diameter parallel is in the central axis of rotor；The radial section of stator tooth
Symmetrical two halves are divided into by a virtual line through rotor axis, increment centrage of the virtual line for stator tooth is fixed
The flank of tooth edge part of sub- tooth is scabbled along another virtual line, and the virtual line scabbles line for the increment of stator tooth, stator tooth
Increment centrage and increment scabble line and are mutually perpendicular to.Teeth portion top rake in this technical scheme is more inflexible, needs larger crown
Portion's thickness, while its increment circular arc processes the cogging torque fluctuation problem that can only solve that some specific pole grooves coordinate motor.
Patent CN202503416 discloses a kind of concentratred winding permagnetic synchronous motor, and its stator tooth tip portion utilizes arc section
Top rake is carried out, the effect of non-homogeneous air gap is reached.Requirement of the arc section in this technical scheme to machining is higher, and positioning is difficult
To ensure.
Patent CN202550735 discloses a kind of unequal gap permanent magnetic motor rotor sheet, advantageously reduces back-emf ripple
Shape aberration rate and location torque, but which adopts one section of circular arc under one pole span of rotor, needs rotor to have larger space, no
Miniaturization beneficial to motor size.
Content of the invention
The purpose of this utility model is to provide a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car, solution
Concentratred winding internal permanent magnet synchronous motor counter potential waveform aberration rate height certainly of the prior art, location torque and torque ripple
Big problem.
The purpose of this utility model is achieved through the following technical solutions：
A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car, including stator, rotor and permanent magnet, institute
The inner circle for stating stator is alternatively formed multiple stator slots and multiple stator tooths, and the stator tooth is stator tooth towards one section of rotor
Increment, the increment end face of stator tooth is the stator tooth flank of tooth；In the range of a tooth pitch, the radial section of stator tooth is passed through by one
The virtual line of rotor axis is divided into symmetrical two halves, increment centrage of the virtual line for stator tooth, flank of tooth edge part edge
Another virtual line is scabbled, and the virtual line scabbles line for increment, and the flank of tooth edge part of described stator tooth respectively has an increment
Line is scabbled, it is misaligned and with increment centrage as symmetrical axial symmetry that two increments scabble line；Open up on the described stator tooth flank of tooth
There are 2 flank of tooth grooves, flank of tooth recess axis are the two ends of the axis through stator center the increment centrage for being located at stator tooth,
Distance of the increment distance between center line of flank of tooth recess axis and stator tooth less than 1/3 tooth pitch.
As preferred technical scheme, described increment scabble line and acute angle formed by increment centrage for 5-45 degree.
As preferred technical scheme, described increment scabble line and acute angle formed by increment centrage for 30 degree.
Used as preferred technical scheme, the stator tooth radial section can be in symmetrically or non-symmetrically to tie along increment centrage
Structure.
As preferred technical scheme, in the range of a pole span, described rotor by the first segmental rotor part, second
The 3 segmental rotor parts in segmental rotor part and the 3rd segmental rotor part composition, described the first segmental rotor part outer
Permanent magnet fluting is offered in circular arc, and the external arc for constituting 3 segmental rotor parts of same rotor has not concentric；Each
The external arc of segmental rotor part has not concentric with Inner arc；The center of circle of the external arc of the second segmental rotor part is located at and turns
On centrage Q in the range of one pole span of son；First segmental rotor part and the external arc center of circle of the 3rd segmental rotor part
On two boundary lines P2 and P1 of a pole span for being located at rotor, cylindrical two point of intersection of segmental arc in 3 segmental rotor parts are carried out
Chamfered；Rotor radial section under one pole span is in symmetrical structure along centrage Q.
Compared with prior art, the beneficial effects of the utility model are：
A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car that this utility model is provided, is turned due to fixed
The structure design of son makes which form uneven radial air gap in air gap both sides of the edge, reduces the change of air-gap permeance, closely subtracts
The change of air gap magnetic field energy when rotor rotates is lacked, has slackened winding back emf irregularity of wave form, reduced motor detent force
Square and torque ripple, while it also avoid the complicated technology problem that brings using skewed slot or the design of oblique pole.
Description of the drawings
Fig. 1 is stator of the present utility model and rotor radial sectional view；
Fig. 2 is the structural representation in the range of one tooth pitch of stator of the present utility model；
Fig. 3 is the structural representation in the range of one pole span of rotor of the present utility model；
In figure, 1 stator, 2 rotors, 3 permanent magnets, the 21 stator tooth flank of tooth, 22 flank of tooth grooves, 23 flank of tooth edge parts；31 second
Segmental rotor part；32 first segmental rotor parts；33 the 3rd segmental rotor parts；34 permanent magnets are slotted.
Specific embodiment
Of the present utility model specific embodiment is described in detail below in conjunction with the accompanying drawings.As shown in figure 1, a kind of be used for new forms of energy
The concentratred winding internal permanent magnet synchronous motor of car, including stator 1, rotor 2 and permanent magnet 3, the inner circle of the stator replaces shape
Into multiple stator slots and multiple stator tooths, one section increment for stator tooth of the stator tooth towards rotor 2, the increment of stator tooth
End face is the stator tooth flank of tooth 21；As shown in Fig. 2 in the range of a tooth pitch, the radial section of stator tooth is by one through rotor
The virtual line in axle center is divided into symmetrical two halves, increment centrage of the virtual line for stator tooth, and flank of tooth edge part 23 is along another
One virtual line is scabbled, and the virtual line scabbles line for increment, and the flank of tooth edge part 23 of described stator tooth respectively has an increment
Line is scabbled, it is misaligned and with increment centrage as symmetrical axial symmetry that two increments scabble line；Open on the described stator tooth flank of tooth 21
2 flank of tooth grooves 22 are provided with, 22 axis of flank of tooth groove is the axis through stator center the increment centrage for being located at stator tooth
Two ends, the distance of the increment distance between center line of 22 axis of flank of tooth groove and stator tooth less than 1/3 tooth pitch, described increment are cut
Horizontal line and acute angle formed by increment centrage for 5-45 degree.Described increment scabbles line and acute angle formed by increment centrage
For 30 degree.The stator tooth radial section can be in symmetrically or non-symmetrically structure along increment centrage.
As shown in figure 3, in the range of a pole span, described rotor is by the first segmental rotor part, the second segmental rotor
The 3 segmental rotor parts in part and the 3rd segmental rotor part composition, in the external arc of described the first segmental rotor part 32
Permanent magnet fluting is offered, the external arc for constituting 3 segmental rotor parts of same rotor has not concentric；Each is fan-shaped
The external arc of rotor portion has not concentric with Inner arc；The center of circle of the external arc of the second segmental rotor part 31 is located at rotor
A pole span in the range of centrage Q on；The external arc circle of the first segmental rotor part 32 and the 3rd segmental rotor part 33
The heart is located on two boundary lines P2 and P1 of a pole span of rotor, and cylindrical two point of intersection of segmental arc in 3 segmental rotor parts are entered
Row chamfered；Rotor radial section under one pole span is in symmetrical structure along centrage Q.
The segmental rotor part that chooses under stator 1 and all pole spans under all tooth pitches is combined, and is formed as shown in Figure 1
Electric machine rotor longitudinal section view, air gap between stator 1 and rotor 2 assumes feature heterogeneous.This utility model is provided
Concentratred winding internal permanent magnet synchronous motor relative to existing permagnetic synchronous motor, torque ripple maximum is reduced to from 14%
12%, cogging torque is reduced to 0.97Nm from 2.46Nm, and the torque ripple of motor and cogging torque performance have obtained significantly carrying
Height, effectively reduces the back-emf harmonic wave and air gap harmonic wave of motor, can realize new forms of energy car even running, low noise, height
The power motor demand of performance.
This utility model is described in detail above by specific embodiment, the embodiment is only this reality
With new preferred embodiments, should not be construed as to restriction of the present utility model, the change done by any principle according to invention is all
Should be within protection domain of the present utility model.
Claims (5)
1. a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car, including stator, rotor and permanent magnet, described
The inner circle of stator is alternatively formed multiple stator slots and multiple stator tooths, one section tooth for stator tooth of the stator tooth towards rotor
End, the increment end face of stator tooth is the stator tooth flank of tooth；It is characterized in that：In the range of a tooth pitch, the radial section of stator tooth
Symmetrical two halves are divided into by a virtual line through rotor axis, increment centrage of the virtual line for stator tooth, tooth
Face edge part is scabbled along another virtual line, and the virtual line scabbles line for increment, the flank of tooth edge part of described stator tooth
Respectively there is an increment to scabble line, it is misaligned and with increment centrage as symmetrical axial symmetry that two increments scabble line；Described stator tooth
2 flank of tooth grooves are offered on the flank of tooth, and flank of tooth recess axis are the axis through stator center and are located in the increment of stator tooth
Distance of the increment distance between center line of the two ends of heart line, flank of tooth recess axis and stator tooth less than 1/3 tooth pitch.
2. a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car as claimed in claim 1, its feature exist
In：Described increment scabble line and acute angle formed by increment centrage for 5-45 degree.
3. a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car as claimed in claim 1, its feature exist
In：Described increment scabble line and acute angle formed by increment centrage for 30 degree.
4. a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car as claimed in claim 1, its feature exist
In：The stator tooth radial section can be in symmetrically or non-symmetrically structure along increment centrage.
5. a kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car as claimed in claim 1, its feature exist
In：In the range of a pole span, described rotor is turned by the first segmental rotor part, the second segmental rotor part and the 3rd are fan-shaped
3 segmental rotor parts of subdivision composition, offers permanent magnet fluting, group in the external arc of described the first segmental rotor part
External arc into 3 segmental rotor parts of same rotor has not concentric；The external arc of each segmental rotor part with interior
Circular arc has not concentric；The center of circle of the external arc of the second segmental rotor part is located at the center in the range of a pole span of rotor
On line Q；The external arc center of circle of the first segmental rotor part and the 3rd segmental rotor part is located at two articles of a pole span of rotor
On boundary line P2 and P1, cylindrical two point of intersection of segmental arc in 3 segmental rotor parts carry out chamfered；Rotor under one pole span
Radial section is in symmetrical structure along centrage Q.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756951.6U CN206023528U (en) | 2016-07-19 | 2016-07-19 | A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756951.6U CN206023528U (en) | 2016-07-19 | 2016-07-19 | A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car |
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| CN206023528U true CN206023528U (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160383A (en) * | 2016-07-19 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car |
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2016
- 2016-07-19 CN CN201620756951.6U patent/CN206023528U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160383A (en) * | 2016-07-19 | 2016-11-23 | 中国第汽车股份有限公司 | A kind of concentratred winding internal permanent magnet synchronous motor for new forms of energy car |
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