CN209120027U - A kind of driving motor and vehicle - Google Patents
A kind of driving motor and vehicle Download PDFInfo
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- CN209120027U CN209120027U CN201820755843.6U CN201820755843U CN209120027U CN 209120027 U CN209120027 U CN 209120027U CN 201820755843 U CN201820755843 U CN 201820755843U CN 209120027 U CN209120027 U CN 209120027U
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Abstract
The utility model discloses a kind of driving motor and vehicles, to improve the NVH performance of vehicle traction motor.Driving motor includes the rotor of stator and coaxial sleeve in stator, wherein: stator includes multiple stator winding of the multiple stator punchings laminated and the multiple stator punchings of insertion, stator punching includes stator yoke and on the inside of the stator yoke and circumferentially distributed multiple stator tooths, tooth socket is formed between adjacent stators tooth, stator winding is located in tooth socket；Rotor includes multiple magnetic pole groups of the multiple rotor punchings laminated and the multiple rotor punchings of insertion, multiple magnetic pole groups are circumferentially distributed, each magnetic pole group includes a pair of V-shaped arranged symmetrically and is open towards stator and the identical magnet steel of polarity, and the polarity of two neighboring magnetic pole group is opposite；The edge of rotor punching, which corresponds to each pole N magnetic pole group and is respectively arranged with the edge of two notches or rotor punching, to be corresponded to each pole S magnetic pole group and is respectively arranged with two notches.
Description
Technical field
The utility model relates to technical field of vehicle, more particularly to a kind of driving motor and vehicle.
Background technique
Automobile has greatly facilitated the development of human society, has been as modern civilization society efficiently transport facility
People's lives, which are brought, to be greatly facilitated and conveniently.NVH (Noise, Vibration, Harshness) performance is to measure automobile
One composite target of manufacturing quality, it is experienced as most directly and most surface to user vehicle.There is statistics to show,
Vehicle is to have relationship with the NVH performance of vehicle, and there is nearly 20% R & D Cost consumption in each major company there are about 1/3 failure problems
On the NVH for solving the problems, such as vehicle.
Therefore, the NVH performance for how improving vehicle traction motor, is a technical problem to be solved urgently.
Utility model content
The purpose of the utility model embodiment is to provide a kind of driving motor and vehicle, to improve vehicle traction motor
NVH performance.
Driving motor provided by the utility model embodiment is set to the rotor in stator including stator and coaxial sleeve,
In:
The stator includes multiple stator winding of the multiple stator punchings laminated and the multiple stator punching of insertion,
The stator punching includes stator yoke and on the inside of the stator yoke and circumferentially distributed multiple stator tooths, adjacent stators tooth it
Between form tooth socket, the stator winding is located in tooth socket；
The rotor includes multiple magnetic pole groups of the multiple rotor punchings laminated and the multiple rotor punching of insertion, institute
It is circumferentially distributed to state multiple magnetic pole groups, each magnetic pole group includes a pair of V-shaped arranged symmetrically and is open towards stator and polarity phase
Same magnet steel, the polarity of two neighboring magnetic pole group are opposite；
The edge of the rotor punching corresponds to each pole N magnetic pole group and is respectively arranged with two notches or rotor punching
The edge of piece corresponds to each pole S magnetic pole group and is respectively arranged with two notches.
Preferably, the central angle in described two notch relative rotors axle center is equal to two stator tooths of one stator tooth in interval
The central angle in relative rotor axle center.
Preferably, the width of the notch is not less than a tooth socket opening width, and it is not more than a tooth socket opening width
The sum of with half of stator tooth width.
More preferably, the width of the notch is equal to the sum of a tooth socket opening width and half of stator tooth width.
Preferably, the air gap between the edge and stator punching of the rotor punching meets: further away from magnetic pole group it is symmetrical in
Heart line air gap is bigger.
Optionally, the notch is arc-shaped or V-arrangement in rounded corner.
Optionally, the stator tooth quantity is 48 or 72, and the magnetic pole group quantity is 8 groups or 12 groups.
Preferably, the rotor punching offers circumferentially distributed multiple lightening holes on the inside of the multiple magnetic pole group.
The utility model embodiment technical solution inhibits the torque of driving motor by the irregular air-gap design such as notch
Pulsation reduces harmonic content, effectively reduces vibration and noise, improves the NVH performance of vehicle traction motor.
The utility model embodiment also provides a kind of vehicle, including driving motor described in aforementioned any technical solution.By
Improved in the NVH performance of driving motor, therefore performance is preferable when vehicle driving, quality is higher.
Detailed description of the invention
Fig. 1 is the axial arrangement schematic diagram of an embodiment of the present invention driving motor；
Fig. 2 is the partial enlargement diagram of Fig. 1；
Fig. 3 is the partial enlargement diagram of Fig. 1；
Fig. 4 a is torque curve of the prior art using the driving motor of even air gap design；
Fig. 4 b is the torque curve of the driving motor designed using the utility model embodiment illustrated in fig. 1；
Fig. 5 a is Fourier frequency of the stator by radial electromagnetic force for the driving motor that the prior art uses even air gap design
Spectrogram；
Fig. 5 b is Fu of the stator by radial electromagnetic force of the driving motor designed using the utility model embodiment illustrated in fig. 1
In leaf spectrogram.
Appended drawing reference:
1- stator punching
2- rotor punching
3- stator winding
11- stator yoke
12- stator tooth
13- tooth socket
4- magnetic pole group
40- magnet steel
21- notch
22- lightening hole
Specific embodiment
For the NVH performance for improving vehicle traction motor, the utility model embodiment provides a kind of driving motor and vehicle.
To keep the purpose of this utility model, technical solution and advantage clearer, the utility model is made by the following examples further
It is described in detail.
As shown in Figure 1 to Figure 3, driving motor provided by the embodiment of the utility model, including stator and coaxial sleeve are set to and determine
Rotor in son, in which:
Stator includes the multiple stator punchings 1 laminated and is embedded in multiple stator winding 3 of multiple stator punchings 1 (in figure
Only illustrate the stator winding 3 of partial amt), stator punching 1 includes stator yoke 11 and is located on the inside of stator yoke 11 and along week
To multiple stator tooths 12 of distribution, tooth socket 13 is formed between adjacent stators tooth 12, stator winding 3 is located in tooth socket 13；
Rotor includes multiple magnetic pole groups 4 of the multiple rotor punchings 2 laminated and the multiple rotor punchings 2 of insertion, multiple magnetic
Pole group 4 is circumferentially distributed, and each magnetic pole group 4 includes a pair of V-shaped arranged symmetrically and is open towards stator and the identical magnetic of polarity
The polarity of steel 40, two neighboring magnetic pole group 4 is opposite；That is: two magnet steel 40 of magnetic pole group 4 are all the pole N magnet steel or are all the pole S magnetic
Steel, the magnetic pole group adjacent with the pole N magnetic pole group are the pole S magnetic pole group, and the magnetic pole group adjacent with the pole S magnetic pole group is the pole N magnetic pole group；
As shown in Fig. 2, the edge of rotor punching 2, which corresponds to each pole N magnetic pole group, is respectively arranged with two notches 21.In addition,
The edge for being also possible to rotor punching 2 corresponds to each pole S magnetic pole group and is respectively arranged with two notches.
Preferably, the central angle alpha of two 21 relative rotor axle center O of notch is equal to two stator tooths of one stator tooth in interval
The central angle β of 12 relative rotor axle center O.
Optionally, 12 quantity of stator tooth is 48 or 72, and 4 quantity of magnetic pole group is 8 groups or 12 groups.In order to reduce driving motor
Weight, reduces power consumption, and rotor punching 2 is also provided with circumferentially distributed multiple lightening holes 22 on the inside of multiple magnetic pole groups 4.
The concrete shape of notch 21 is unlimited, such as can be in arc shown in FIG. 1, in addition it is also possible to be in the V of rounded corner
Shape, etc..
In addition, as shown in figure 3, in the above-described embodiments, further, between the edge and stator punching 1 of rotor punching 2
Air gap meet: it is bigger further away from 4 symmetrical center line air gap of magnetic pole group, as shown in A in figure, it may be assumed that 2 edge of rotor punching use
Eccentric arc design.
Due to being provided with tooth socket on stator punching, such as 48 tooth sockets are provided with, lead to the torque curve or stator of driving motor
There is the cyclic fluctuation as caused by tooth socket in suffered radial electromagnetic force curve, the period of the fluctuation is the 48 of basic speed-frequency
Times, i.e. 48 order frequencies, the appearance of 48 order frequency causes driving motor to generate oneself intrinsic 48 ranks, 96 ranks and 24 rank noises.
Therefore, inhibit the energy under 48 rank of driving motor, 96 ranks and 24 order frequencies that can improve the NVH performance of motor.
The utility model embodiment technical solution is by the shapes design such as notch and eccentric arc, so that rotor punching and fixed
Irregular air gap, i.e. non-uniform gap are formed between sub- punching, and when the rotation of rotor relative stator, class can be generated in air gap
Like the excitation field of Sine distribution, to inhibit tooth socket harmonic wave, reach torque pulsation inhibited and inhibit radial electromagnetism on stator tooth
The effect of power harmonic wave, it is final to realize the purpose for inhibiting electromagnetic noise.
In addition, as shown in Fig. 2, present inventor obtains after many experiments and simulation calculation, the width of notch 21
Spend s and be not less than a 13 opening width a of tooth socket, and no more than a 13 opening width a of tooth socket and half 12 width b of stator tooth it
And when, the irregular air-gap design between rotor punching 2 and stator punching 1 is relatively reasonable, inhibits electromagnetic noise effect obvious.?
In one preferred embodiment, the width s of notch is equal to the sum of a tooth socket opening width a and half of stator tooth width b.
As shown in figures 4 a and 4b, wherein Fig. 4 a is torque of the prior art using the driving motor of even air gap design
Curve, Fig. 4 b are the torque curve of the driving motor designed using the utility model embodiment illustrated in fig. 1.Comparing two figures can see
Out, the torque pulsation of the utility model embodiment driving motor reduces 50% or more.
As shown in figure 5 a and 5b, wherein Fig. 5 a is stator of the prior art using the driving motor of even air gap design
By the Fourier spectrum of radial electromagnetic force, Fig. 5 b is determining for the driving motor designed using the utility model embodiment illustrated in fig. 1
Fourier spectrum of the son by radial electromagnetic force.Compare two figures can be seen that the stator of the utility model embodiment driving motor by
48 order components of radial electromagnetic force can reduce 35%, and 96 order components can reduce 10%.
To sum up, the utility model embodiment technical solution inhibits driving motor by the irregular air-gap design such as notch
Torque pulsation reduces harmonic content, effectively reduces vibration and noise, improves the NVH performance of vehicle traction motor.
The utility model embodiment also provides a kind of vehicle, the driving motor including aforementioned any technical solution.Due to driving
The NVH performance of dynamic motor is improved, therefore performance is preferable when vehicle driving, and quality is higher.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. a kind of driving motor, which is characterized in that the rotor being set to including stator and coaxial sleeve in stator, in which:
The stator includes multiple stator winding of the multiple stator punchings laminated and the multiple stator punching of insertion, described
Stator punching includes stator yoke and the shape between stator yoke inside and circumferentially distributed multiple stator tooths, adjacent stators tooth
At tooth socket, the stator winding is located in tooth socket；
The rotor includes multiple magnetic pole groups of the multiple rotor punchings laminated and the multiple rotor punching of insertion, described more
A magnetic pole group is circumferentially distributed, each magnetic pole group include it is a pair of it is V-shaped be symmetrical arranged and be open towards stator and polarity it is identical
The polarity of magnet steel, two neighboring magnetic pole group is opposite；
The edge of the rotor punching corresponds to each pole N magnetic pole group and is respectively arranged with two notches or the rotor punching
Edge corresponds to each pole S magnetic pole group and is respectively arranged with two notches.
2. driving motor as described in claim 1, which is characterized in that the central angle etc. in described two notch relative rotors axle center
Central angle in two stator tooth relative rotor axle center for being spaced a stator tooth.
3. driving motor as claimed in claim 1 or 2, which is characterized in that the width of the notch is opened not less than a tooth socket
Mouth width degree, and no more than the sum of a tooth socket opening width and half of stator tooth width.
4. driving motor as claimed in claim 3, which is characterized in that the width of the notch is equal to a tooth socket opening width
The sum of with half of stator tooth width.
5. driving motor as claimed in claim 1 or 2, which is characterized in that the edge of the rotor punching and stator punching it
Between air gap meet: it is bigger further away from magnetic pole group symmetrical center line air gap.
6. driving motor as claimed in claim 1 or 2, which is characterized in that the notch is arc-shaped or V-arrangement in rounded corner.
7. driving motor as claimed in claim 1 or 2, which is characterized in that the stator tooth quantity is 48 or 72, the magnetic
Pole group quantity is 8 groups or 12 groups.
8. driving motor as claimed in claim 1 or 2, which is characterized in that the rotor punching is in the multiple magnetic pole group
Side offers circumferentially distributed multiple lightening holes.
9. a kind of vehicle, which is characterized in that including driving motor as described in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755843.6U CN209120027U (en) | 2018-05-21 | 2018-05-21 | A kind of driving motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755843.6U CN209120027U (en) | 2018-05-21 | 2018-05-21 | A kind of driving motor and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN209120027U true CN209120027U (en) | 2019-07-16 |
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ID=67195366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755843.6U Active CN209120027U (en) | 2018-05-21 | 2018-05-21 | A kind of driving motor and vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391702A (en) * | 2019-08-07 | 2019-10-29 | 安徽德科电气科技有限公司 | A kind of permanent magnetic motor rotor magnetic circuit |
| CN110518774A (en) * | 2018-05-21 | 2019-11-29 | 广州小鹏汽车科技有限公司 | A kind of driving motor and vehicle |
| CN111740519A (en) * | 2020-08-17 | 2020-10-02 | 南京凌鸥创芯电子有限公司 | Speed regulation control method of electric tricycle permanent magnet synchronous motor and motor |
-
2018
- 2018-05-21 CN CN201820755843.6U patent/CN209120027U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518774A (en) * | 2018-05-21 | 2019-11-29 | 广州小鹏汽车科技有限公司 | A kind of driving motor and vehicle |
| CN110391702A (en) * | 2019-08-07 | 2019-10-29 | 安徽德科电气科技有限公司 | A kind of permanent magnetic motor rotor magnetic circuit |
| CN111740519A (en) * | 2020-08-17 | 2020-10-02 | 南京凌鸥创芯电子有限公司 | Speed regulation control method of electric tricycle permanent magnet synchronous motor and motor |
| CN111740519B (en) * | 2020-08-17 | 2022-12-09 | 南京凌鸥创芯电子有限公司 | Speed regulation control method of electric tricycle permanent magnet synchronous motor and motor |
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