CN207410127U - A kind of magnetic resistance motor rotor iron core with groove - Google Patents
A kind of magnetic resistance motor rotor iron core with groove Download PDFInfo
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- CN207410127U CN207410127U CN201721480987.7U CN201721480987U CN207410127U CN 207410127 U CN207410127 U CN 207410127U CN 201721480987 U CN201721480987 U CN 201721480987U CN 207410127 U CN207410127 U CN 207410127U
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- punching
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Abstract
The utility model is related to the rotor core of reluctance motor, the rotor punching in prior art rotor iron core uses the structure of symmetry circumference uniform distribution more, is also symmetrical structure by the iron core of the structure, the torque pulsation that this allows for this structural electromotor is larger；The utility model provides a kind of magnetic resistance motor rotor iron core with groove, is formed by several rotor punchings stacking, it is characterised in that：The outer rim of the rotor punching is all provided with jagged；When several rotor punchings are stacked into iron core, the notch of outer rim is interconnected and forms curved groove；It can effectively inhibit or reduce reluctance motor electromagnetic noise caused by torque pulsation and electric and magnetic oscillation.
Description
Technical field
The utility model is related to the rotor core of reluctance motor, more specifically a kind of magnetic resistance motor rotor with groove
Iron core.
Background technology
At present, the rotor punching of synchronous magnetic resistance motor is essentially all the structure using symmetry circumference uniform distribution.With four magnetic
Exemplified by the rotor punching of pole, rotor punching in a ring is equipped with four groups of magnetic flux intercepting grooves, and four groups of magnetic flux intercepting grooves are rushed around rotor
Piece center circumferential is uniformly respectively formed the fan ring region that four are 90 degree, and each ring region of fanning forms a magnetic pole.In same fan ring region
One group of magnetic flux intercepting groove in symmetrical and its symmetry axis in fan ring region be the center line of fan ring region, in other words this group of magnetic
Logical intercepting groove is the center of circle of zhou duicheng tuxing and its symmetry axis Jing Guo punching in the orthographic projection in punching；In adjacent fan ring region
Magnetic flux intercepting groove is symmetrical on the magnetic pole line of demarcation between two fan ring regions.
It is also in symmetrical structure containing the iron core magnetic resistance being made of the structure punching, such motor has larger torque arteries and veins
It is dynamic, and then larger electromagnetic noise and electric and magnetic oscillation can be generated.Therefore, magnetic resistance electricity can be inhibited or reduce by being badly in need of a kind of can reduce
Machine causes the magnetic resistance motor rotor iron core of electromagnetic noise and electric and magnetic oscillation because of torque pulsation.
Utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned defect in the prior art, provides a kind of energy
Reduction can inhibit or reduce reluctance motor because torque pulsation causes the reluctance motor with groove of electromagnetic noise and electric and magnetic oscillation
Rotor core.
To achieve the above object, the utility model is achieved by the following technical programs：A kind of magnetic resistance electricity with groove
Machine rotor iron core is formed by several rotor punchings stacking, and the outer rim of the rotor punching is all provided with jagged；Several rotor punchings
When being stacked into iron core, the notch of outer rim is interconnected and forms curved groove.
Using above-mentioned technical proposal, rotor punching is stacked in after iron core, front and rear rotor punching deflects an angle successively,
So that notch forms a curved groove in iron core outer wall, unsymmetric structure will be become in the iron core of symmetrical structure, so as to have
Effect inhibits or reduces reluctance motor electromagnetic noise caused by torque pulsation and electric and magnetic oscillation.
The utility model is more preferably：The rotor punching outer rim notch is equipped with N groups, the group number and rotor of notch
The quantity that magnetic pole is formed in punching is identical；Asymmetry is improved, reduces electromagnetic noise and electric and magnetic oscillation caused by torque pulsation.
The utility model is more preferably：The groove runs through the side wall of iron core；In this way, being conveniently operated, need to will only turn
Sub- punching is stacked in after iron core, then front and rear rotor punching is continuously deflected equal angular successively.
The utility model is more preferably：In several notches for forming same groove, arbitrary two notches and iron
Formed angle is less than or equal to 360 °/N between wire mandrel.
The utility model is more preferably：When iron core side wall is launched into plane, the groove is in oblique line, camber line or sine
Wire is distributed.
The utility model is more preferably：The magnetic flux intercepting groove be equipped with four groups, be respectively formed four fan ring regions and
With this fan corresponding magnetic pole of ring region.
The utility model is more preferably：The notch is in inwardly arc-shaped.
In conclusion the utility model has the advantages that：It compared with prior art, will be in the iron core of symmetrical structure
Become unsymmetric structure, and then realize and inhibit or reduce reluctance motor electromagnetic noise caused by torque pulsation and electromagnetic vibration
It is dynamic.
Description of the drawings
Fig. 1 is the structure diagram of embodiment 1；
Fig. 2 is the front view of embodiment 2；
Fig. 3 is the structure diagram of embodiment 3；
Fig. 4 is the structure diagram of embodiment 4；
Fig. 5 is the configuration diagram of embodiment 5.
In figure：1st, rotor punching；2nd, magnetic flux intercepting groove；3rd, ring region is fanned；4th, symmetry axis；5th, notch；6th, groove.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only explanation to the utility model, is not the limitation to the utility model, this field skill
Art personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as
It is all protected in the right of the utility model be subject to Patent Law.
Embodiment 1：As shown in Figure 1, a kind of magnetic resistance motor rotor iron core with groove is shown, by several rotor punchings 1
Stack what is formed, the outer rim of rotor punching 1 is all provided with jagged 5, and notch 5 is in inwardly arc-shaped.Several rotor punchings 1 are stacked into iron
During core, the notch 5 of outer rim is interconnected and forms curved groove 6, and groove 6 runs through the side wall of iron core.Iron core side wall is unfolded
During into plane, groove 6 is in oblique line, camber line or sinusoidal wire distribution.
In the present embodiment, for iron core development into after plane, groove 6 is in that sinusoidal wire is distributed.Its notch 5 is along rotor punching 1
It is axially extending, therefore form sawtooth in 6 edge of groove of sinusoidal wire distribution.
1 outer rim notch 5 of rotor punching is equipped with N groups, the quantity phase of the group number of notch 5 and formation magnetic pole on rotor punching 1
Together.In several notches 5 for forming same groove 6, between arbitrary two notches 5 and iron core axis formed angle be less than or
Equal to 360 °/N.
Embodiment 2：In the present embodiment, the notch 5 of 1 outer rim of rotor punching is obliquely installed so that is unfolded in iron core side wall
Into after plane, 6 edge of groove being linearly distributed just aligns, without sawtooth.
Embodiment 3 to 5 is the rotor punching 1 of magnetic resistance motor rotor iron core of the composition with groove 6.
Embodiment 3：As shown in figure 3, a kind of notched magnetic resistance motor rotor punching is shown, including punching in a ring
It is and multiple in the multigroup magnetic flux intercepting grooves 2 for fanning ring region 3 in being formed in punching.Each fan ring region 3 is equipped with one group of magnetic flux and obstructs
Slot 2 is simultaneously all provided with jagged 5 for forming the outer rim of a magnetic pole and each fan ring region 3 when motor works.In at least one fan ring region 3
One group of magnetic flux intercepting groove 2 be zhou duicheng tuxing and its symmetry axis 4 without the center of circle of punching；One at least one fan ring region 3
Group magnetic flux intercepting groove 2 is non-axis symmetry figure.
In the present embodiment, magnetic flux intercepting groove 2 is equipped with four groups, is respectively formed four fan ring regions 3 and fans 3 phase of ring region with this
Corresponding magnetic pole；The outer rim in each fan section is all provided with there are two notch 5 and notch 5 is inwardly in arc-shaped.Wherein, there are two groups of magnetic fluxs
Intercepting groove 2 is symmetric figure, and another two groups of magnetic flux intercepting grooves 2 are asymmetrical graphic.In two groups of magnetic flux intercepting grooves 2 of symmetric figure
Symmetry axis 4 without punching the center of circle.
Embodiment 4：As shown in Fig. 2, a kind of notched magnetic resistance motor rotor punching is shown, including punching in a ring
It is and multiple in the multigroup magnetic flux intercepting grooves 2 for fanning ring region 3 in being formed in punching.Each fan ring region 3 is equipped with one group of magnetic flux and obstructs
The outer rim of slot 2 and one magnetic pole of formation and each fan ring region 3 is all provided with jagged 5.One group of magnetic flux intercepting groove at least one fan ring region 3
2 be zhou duicheng tuxing and its symmetry axis 4 without the center of circle of punching.
In the present embodiment, magnetic flux intercepting groove 2 is equipped with four groups, is respectively formed four fan ring regions 3 and fans 3 phase of ring region with this
Corresponding magnetic pole；The outer rim in each fan section is all provided with there are two notch 5 and notch 5 is inwardly in arc-shaped.Four groups of magnetic flux intercepting grooves 2
Be symmetric figure and two-by-two in punching be symmetrical arranged, in other words it is adjacent two fan ring region 3 in magnetic flux intercepting groove 2 in punching
It is upper to be symmetrical arranged.
Embodiment 5：As shown in figure 3, a kind of notched magnetic resistance motor rotor punching is shown, including punching in a ring
It is and multiple in the multigroup magnetic flux intercepting grooves 2 for fanning ring region 3 in being formed in punching.Each fan ring region 3 is equipped with one group of magnetic flux and obstructs
The outer rim of slot 2 and one magnetic pole of formation and each fan ring region 3 is all provided with jagged 5.One group of magnetic flux intercepting groove at least one fan ring region 3
2 be zhou duicheng tuxing and its symmetry axis 4 without the center of circle of punching.
In the present embodiment, magnetic flux intercepting groove 2 is equipped with four groups, is respectively formed four fan ring regions 3 and fans 3 phase of ring region with this
Corresponding magnetic pole；The outer rim in each fan section is all provided with there are two notch 5 and notch 5 is inwardly in arc-shaped.Four groups of magnetic flux intercepting grooves 2
It is symmetric figure, wherein the center of circle of the symmetry axis 4 of two groups of adjacent magnetic flux intercepting grooves 2 without punching, another two groups of magnetic fluxs resistance
The center of circle of the symmetry axis 4 of separate slot 2 Jing Guo punching, in other words the magnetic flux intercepting groove 2 in adjacent two fans ring region 3 is in symmetrical in punching
It sets.
Utility model works principle is as follows：The magnetic flux in notch 5 and fan ring region 3 by fanning 3 outer rim of ring region obstructs
The shape and arrangement mode of slot 2 will become unsymmetric structure in the fan ring region 3 of symmetrical structure, to reach inhibition or reduce magnetic resistance
Motor causes electromagnetic noise and the purpose of electric and magnetic oscillation because of torque pulsation.
In addition to above-described embodiment, the fan sections of other numbers, magnetic flux intercepting groove 2, fan 3 outer rim of ring region can also be set to lack
Various groups of symmetric figure and the accounting of asymmetrical graphic etc. in the quantity of mouth 5, the notch 5 of different position arrangement, magnetic flux intercepting groove 2
It closes, fan ring region 3 is become into unsymmetric structure by symmetrical structure, no longer states and chats one by one herein.
Claims (6)
1. a kind of magnetic resistance motor rotor iron core with groove, by several rotor punchings（1）Stack what is formed, it is characterised in that：Institute
State rotor punching（1）Outer rim be all provided with it is jagged（5）；Several rotor punchings（1）When being stacked into iron core, the notch of outer rim（5）Phase
It is intercommunicated and form curved groove（6）.
2. rotor core according to claim 1, it is characterised in that：The rotor punching（1）Outer rim notch（5）Be equipped with
N groups, notch（5）Group number and rotor punching（1）The quantity of upper formation magnetic pole is identical.
3. rotor core according to claim 2, it is characterised in that：The groove（6）Through the side wall of iron core.
4. rotor core according to claim 3, it is characterised in that：Forming same groove（6）Several notches（5）
In, arbitrary two notches（5）Formed angle is less than or equal to 360 °/N between iron core axis.
5. rotor core according to claim 4, it is characterised in that：When iron core side wall is launched into plane, the groove（6）
In oblique line, camber line or sinusoidal wire distribution.
6. rotor core according to claim 1, it is characterised in that：The notch（5）It is in inwardly arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480987.7U CN207410127U (en) | 2017-11-08 | 2017-11-08 | A kind of magnetic resistance motor rotor iron core with groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480987.7U CN207410127U (en) | 2017-11-08 | 2017-11-08 | A kind of magnetic resistance motor rotor iron core with groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207410127U true CN207410127U (en) | 2018-05-25 |
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ID=62318473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721480987.7U Active CN207410127U (en) | 2017-11-08 | 2017-11-08 | A kind of magnetic resistance motor rotor iron core with groove |
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| CN (1) | CN207410127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384799A (en) * | 2018-12-27 | 2020-07-07 | 现代自动车株式会社 | Embedded permanent magnet motor and rotor comprising same |
| CN112436629A (en) * | 2019-08-26 | 2021-03-02 | 安徽美芝精密制造有限公司 | Rotor, motor, compressor and refrigeration plant |
-
2017
- 2017-11-08 CN CN201721480987.7U patent/CN207410127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384799A (en) * | 2018-12-27 | 2020-07-07 | 现代自动车株式会社 | Embedded permanent magnet motor and rotor comprising same |
| CN112436629A (en) * | 2019-08-26 | 2021-03-02 | 安徽美芝精密制造有限公司 | Rotor, motor, compressor and refrigeration plant |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Patentee before: Wolong Electric Group Co., Ltd. |