CN207234549U - A kind of motor rotor stamping sheet structure - Google Patents
A kind of motor rotor stamping sheet structure Download PDFInfo
- Publication number
- CN207234549U CN207234549U CN201721126695.3U CN201721126695U CN207234549U CN 207234549 U CN207234549 U CN 207234549U CN 201721126695 U CN201721126695 U CN 201721126695U CN 207234549 U CN207234549 U CN 207234549U
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- magnetic pole
- groove
- rotor
- motor
- rotor punching
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Abstract
The utility model discloses a kind of motor rotor stamping sheet structure, rotor punching body including circular ring shape, one group of magnetic pole is equipped with the rotor punching body, groove between magnetic pole is equipped between adjacent pole in the outer rim of the rotor punching body, magnetic pole correspond in the outer rim of rotor punching body and is equipped with groove at magnetic pole.It is reasonable in design, slot between magnetic pole punching is cylindrical, using improvement of the optimization of rotor fluting to motor torque fluctuation, iron loss and rotor structure stress, so as to increase the efficiency and traveling comfort of motor；And simple in structure, improving cost is low.
Description
Technical field
Technical field of motors is the utility model is related to, more particularly, to a kind of motor rotor stamping sheet structure.
Background technology
At present, with one of the fast development of new-energy automobile industry, the three big kernel components as new energy vehicle
The design of motor particularly permanent magnet synchronous motor be increasingly subject to pay attention to inside industry, the electromagnetic performance of motor is proposed
A series of requirement.
The one kind of P2 form new energy hybrid vehicles as new-energy automobile, becomes a kind of trend of development gradually.P2
Form new energy hybrid vehicle driving motor should meet automobilism function, consider comfort, adaptation, height when driving again
Speed and continual mileage requirement of once charging, after which is mounted in engine mission, installation space is narrow and small, working environment
More harsh relative to pure electric automobile motor, the hybrid vehicles of P2 forms is relative to pure electric automobile to driving motor
Efficiency, vibration, noise, Structural strength calls higher, have motor performance the requirement of higher.
As shown in figure 4, the outer rim of existing motor rotor punching sheet is anchor ring, there are certain torque ripple and leakage field and
Iron loss, the stationarity of motor operation is not fine.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved in the utility model is to provide a kind of motor rotor punching sheet knot
Structure, to achieve the purpose that to improve motor operation stationarity.
In order to solve the above-mentioned technical problem, technical solution is used by the utility model：
The motor rotor stamping sheet structure, includes the rotor punching body of circular ring shape, one is equipped with the rotor punching body
Magnetic pole is organized, groove between magnetic pole, the outer rim of rotor punching body are equipped between adjacent pole in the outer rim of the rotor punching body
Upper corresponding magnetic pole is equipped with groove at magnetic pole.
Further, groove is arc groove between the magnetic pole.
It is two that groove, which corresponds to each magnetic pole, at the magnetic pole, two end sets for corresponding to magnetic pole respectively.
It is equipped with circular trough on the rotor punching body on the inside of groove between adjacent pole and between magnetic pole.
Groove is arc groove at the magnetic pole.
The utility model compared with prior art, has the following advantages：
Motor rotor stamping sheet structure design is reasonable, slots between magnetic pole punching is cylindrical, is opened using rotor
Improvement of the optimization of groove to motor torque fluctuation, iron loss and rotor structure stress, so as to increase the efficiency of motor and putting down for operation
Stability；And simple in structure, improving cost is low.
Brief description of the drawings
The content expressed by each width attached drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is the utility model rotor punching structure schematic diagram one.
Fig. 2 is the utility model rotor punching structure schematic diagram two.
Fig. 3 is the utility model rotor punching partial schematic diagram.
Fig. 4 is existing rotor punching structure schematic diagram.
In figure：
1. groove between magnetic pole, groove at 2. magnetic poles.
Embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed
Thin explanation.
As shown in Figure 1 to Figure 3, the motor rotor stamping sheet structure, includes the rotor punching body of circular ring shape, rotor punching sheet
One group of magnetic pole is equipped with vivo, one group of magnetic pole is circumferentially evenly spaced on.
Groove 1 between magnetic pole is equipped between adjacent pole in the outer rim of rotor punching body, in the outer rim of rotor punching body
Corresponding magnetic pole is equipped with groove 2 at magnetic pole.It is equipped with circle on rotor punching body on the inside of groove between adjacent pole and between magnetic pole
Shape groove.
Groove 1 between magnetic pole is equipped between adjacent pole in the outer rim of rotor punching body, groove 1 is recessed for arc between magnetic pole
Groove；And circular trough is opened up at interpolar magnetic bridge, by rational size Control, ensure at utmost to reduce magnetic in the case of stress
Leakage field at bridge.
It is two that groove 2, which corresponds to each magnetic pole, at magnetic pole, two end sets for corresponding to magnetic pole respectively, and groove is at magnetic pole
Arc groove.Two arc-shaped slots opened up at magnetic pole, and groove profile position size is optimized, effectively optimize motor gas
The waveform in gap magnetic field.
Slot treatment is carried out to motor rotor punching sheet, reality is relatively easy to for punching uses punching press and wire cutting technology
Existing, concept feasible is high.
Mode of grooving, the position of fluting, size can all have an impact motor performance, in order to be optimized to motor performance
There is provided P1, P2, P3, P4, P5, P6, a (angle) parameter.Using these parameters to the anti-of motor in electromagnetic software
Potential harmonic content, torque pulsation and iron loss optimize emulation.Rotor centrifugal force is imitated using electromagnetic software
It is true to check.
Using electromagnetic principle and Analysis of Magnetic Circuit, improve the sine of air gap magnetic density waveform in the cylindrical fluting of rotor punching, subtract
The harmonic content of few air gap magnetic density waveform, rational interpolar fluting can reduce leakage field, increase air-gap flux amount, electric efficiency
It is improved, in addition interpolar fluting, which also acts as unloading effect, makes rotor stressing conditions during high speed be improved.
With respect to Fig. 4 existing structures two schemes in the case of nominal torque is ensured, electrically contrasted with structural behaviour：
Back-emf harmonic content：11.3% is reduced to 9.3%；
Cogging torque：3.6N.m is reduced to 1.7N.m；
Torque pulsation：5% is reduced to by 15%；
Open-circuit core loss：Reduced by 214W low to 191W；
Magnetic bridge centrifuges stress:350MPa is reduced to 316MPa.
As can be seen from the results fluting and after optimization processing motor all have in terms of electric and structural behaviour compared with
Big improvement.Simple and reliable, feasible, implementation process is easy to control, can lift the electromagnetic performance and structural strength of motor at the same time, right
There is very big benefit in the stationarity of motor operation, noise and efficiency, possess commercial application prospect.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model implement and from
The limitation of aforesaid way, as long as employing the improvement of the various unsubstantialities of the design and technical solution progress of the utility model,
Or not improved the design of the utility model and technical solution are directly applied into other occasions, the guarantor in the utility model
Within the scope of shield.
Claims (5)
1. a kind of motor rotor stamping sheet structure, includes the rotor punching body of circular ring shape, one is equipped with the rotor punching body
Group magnetic pole, it is characterised in that：Equipped with groove between magnetic pole, rotor punching between adjacent pole in the outer rim of the rotor punching body
Magnetic pole is corresponded in the outer rim of body equipped with groove at magnetic pole.
2. motor rotor stamping sheet structure as claimed in claim 1, it is characterised in that：Groove is arc groove between the magnetic pole.
3. motor rotor stamping sheet structure as claimed in claim 1, it is characterised in that：Groove corresponds to each magnetic pole and is at the magnetic pole
Two, two end sets for corresponding to magnetic pole respectively.
4. motor rotor stamping sheet structure as claimed in claim 1, it is characterised in that：In adjacent pole on the rotor punching body
Between and between magnetic pole be equipped with circular trough on the inside of groove.
5. motor rotor stamping sheet structure as claimed in claim 3, it is characterised in that：Groove is arc groove at the magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126695.3U CN207234549U (en) | 2017-09-05 | 2017-09-05 | A kind of motor rotor stamping sheet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126695.3U CN207234549U (en) | 2017-09-05 | 2017-09-05 | A kind of motor rotor stamping sheet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234549U true CN207234549U (en) | 2018-04-13 |
Family
ID=61860672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721126695.3U Active CN207234549U (en) | 2017-09-05 | 2017-09-05 | A kind of motor rotor stamping sheet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234549U (en) |
-
2017
- 2017-09-05 CN CN201721126695.3U patent/CN207234549U/en active Active
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