CN203537098U - Magnetic pole punching sheet and permanent magnet generator rotor iron core using the same - Google Patents
Magnetic pole punching sheet and permanent magnet generator rotor iron core using the same Download PDFInfo
- Publication number
- CN203537098U CN203537098U CN201320620735.5U CN201320620735U CN203537098U CN 203537098 U CN203537098 U CN 203537098U CN 201320620735 U CN201320620735 U CN 201320620735U CN 203537098 U CN203537098 U CN 203537098U
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- Prior art keywords
- pole
- magnetic pole
- lamination
- iron core
- permanent magnet
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000004080 punching Methods 0.000 title abstract 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000003475 lamination Methods 0.000 claims description 60
- 238000009423 ventilation Methods 0.000 claims description 18
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a magnetic pole punching sheet and a permanent magnet generator rotor iron core using the same, belonging to the field of generator engineering technology. The magnetic pole punching sheet is provided with air vents and a magnetic steel arrangement hole. The air vents are arranged with a symmetric axis deviating from the symmetric axis of the poles of the magnetic pole punching sheet. The magnetic steel arrangement hole is symmetrically arranged on two sides of the symmetric axis of the poles of the magnetic pole punching sheet. The permanent magnet generator rotor iron core is of a segmented structure in the axial direction. Adjacent iron core segments are positioned and aligned with respect to the symmetric axis of the air vents and are assembled in reverse directions, so that the iron core segments form a structure that the symmetric axes of the adjacent iron core segments deviate in a staggered manner. The generator magnetic pole structure provided by the utility model can effectively improve a tooth harmonic magnetic field of a permanent magnet generator, reduce torque ripples and additional losses, and improve the motor running efficiency. The design, techniques and production difficulty are low, and costs are not increased. The magnetic pole punching sheet and the permanent magnet generator rotor iron core are easy to implement in engineering, can be used in regular permanent magnet synchronous motors, is especially suitable for high-speed permanent magnet synchronous motors, and thus is worth promotion.
Description
Technical field
The utility model relates to a kind of pole lamination and adopts the rotor of permanent-magnetic power generator of this pole lamination unshakable in one's determination, and especially a kind of high rotating speed, the stacked generator rotor core of minor diameter permanent magnetism, belong to generator field of engineering technology.
Background technology
In the engineering design of the generator of high rotating speed, minor diameter; because being subject to the restriction of number of poles; electromagnetic scheme can be selected integer groove conventionally; and every extremely every phase groove number is little; this has just brought air gap harmony wave to cross strong phenomenon; if do not taked special measures, will produce larger torque pulsation, worsen noise and vibration, improve supplementary load loss, reduce electric efficiency.
For weakening harmony wave, conventionally take the measures such as skewed stator slot or skewed-rotor.But stator iron core chute structure has increased design, technique and manufacture difficulty; Particularly skewed-rotor is difficult for implementing the in the situation that of minor diameter.
Summary of the invention
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, the pole lamination that a kind of design, technique and manufacture difficulty are low is provided and adopts the rotor of permanent-magnetic power generator iron core of this pole lamination, effectively to improve magneto harmony wave, reduce torque pulsation, reduce supplementary load loss, improve motor operational efficiency.
The technical solution adopted in the utility model is as follows:
A kind of pole lamination, comprise pole lamination body, on described pole lamination body, be provided with ventilation hole and magnet steel is hole arranged, described ventilation hole symmetry axis is offset from the setting of pole lamination body magnetic pole symmetry axis, the hole arranged both sides that are symmetricly set in pole lamination body magnetic pole symmetry axis of described magnet steel.
Pole lamination of the present utility model, further, the deviation angle of described ventilation hole symmetry axis and pole lamination body magnetic pole symmetry axis is 1/4 stator tooth elongation.
A kind of rotor of permanent-magnetic power generator of described pole lamination that adopts is unshakable in one's determination, described rotor core is being axially segmental structure, each stack of lamination is assembled by described pole lamination body, the hole arranged magnet steel that is embedded with of magnet steel of pole lamination body, adjacent stack of lamination, with the ventilation hole symmetry axis location alignment of pole lamination body and oppositely assembling each other, forms the structure of the symmetrical shaft staggered skew of each adjacent stack of lamination magnetic pole.
Rotor of permanent-magnetic power generator of the present utility model is unshakable in one's determination, and further, the side-play amount of described adjacent stack of lamination magnetic pole symmetry axis is 1/2 stator tooth elongation.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: generator magnetic pole structure of the present utility model, can effectively improve magneto harmony wave, and reduce torque pulsation, reduce supplementary load loss, improve motor operational efficiency; Design, technique and manufacture difficulty are low, do not increase cost, are easy to realize in engineering; Can be used for conventional permagnetic synchronous motor, be specially adapted to high-speed permanent magnetic synchronous motor, there is good promotional value.
Accompanying drawing explanation
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is pole lamination structural representation of the present utility model;
Fig. 2 is adjacent stack of lamination pole lamination assembling schematic diagram of the present utility model;
Fig. 3 is schematic diagram after rotor core assembling of the present utility model.
Mark in figure: 1-pole lamination body, 2-ventilation hole, 3-magnet steel are hole arranged, a-magnetic pole symmetry axis, b-ventilation hole symmetry axis.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
Pole lamination of the present utility model, its structural representation as shown in Figure 1, on fan-shaped pole lamination body 1, be provided with ventilation hole 2 and magnet steel hole arranged 3, ventilation hole symmetry axis b is with respect to the magnetic pole symmetry axis a of pole lamination body 1, with deviation angle α, ventilation hole 2 is arranged to the inner arc side of pole lamination body 1, described deviation angle α is designed to 1/4 stator tooth elongation, described magnet steel hole arranged 3 is arranged at the outer arc side of pole lamination body 1, and the magnetic pole symmetry axis a of take has two magnet steel hole arranged 3 as symmetrically arranged.
The rotor of permanent-magnetic power generator that the described pole lamination of employing of the present utility model is assembled is unshakable in one's determination, its assembling schematic diagram as shown in Figure 3, described rotor core is being axially segmental structure, each stack of lamination is assembled by described pole lamination body 1, in the magnet steel hole arranged 3 of pole lamination body 1, be embedded with magnet steel, adjacent stack of lamination is with the ventilation hole symmetry axis b location alignment of pole lamination body 1 and oppositely assembling each other, form the structure that adjacent stack of lamination magnetic pole symmetry axis b staggered offset arranges, the deviation angle that makes magnetic pole symmetry axis a between adjacent stack of lamination is 2 α, the ventilation hole 2 of each stack of lamination forms unimpeded consistent rotor ventilation hole, its adjacent two stack of lamination assembling schematic diagrames as shown in Figure 2, when on pole lamination body 1, ventilation hole symmetry axis b is preferably 1/4 stator tooth elongation with respect to the magnetic pole symmetry axis a deviation angle α of pole lamination body 1, magnetic pole symmetry axis b deviation angle between adjacent stack of lamination is 1/2 stator tooth elongation.
Pole lamination of the present utility model and adopt the rotor of permanent-magnetic power generator of this pole lamination unshakable in one's determination, by adjusting the angle α of ventilation hole symmetry axis b and magnetic pole symmetry axis a, can weaken the harmonic wave of certain order selectively.Through theory calculating and experiment, show, in the design of electrical motor of integer groove, when angle α is adjusted into 1/4 stator tooth elongation, now less to first-harmonic weakening, slot ripples has weakened greatly.
Generator magnetic pole structure of the present utility model, can effectively improve magneto harmony wave, reduces torque pulsation, reduces supplementary load loss, improves motor operational efficiency; Design, technique and manufacture difficulty are low, do not increase cost, are easy to realize in engineering; Can be used for conventional permagnetic synchronous motor, be specially adapted to high-speed permanent magnetic synchronous motor, there is good promotional value.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a pole lamination, it is characterized in that: comprise pole lamination body (1), on described pole lamination body (1), be provided with ventilation hole (2) and magnet steel hole arranged (3), described ventilation hole (2) symmetry axis is offset from the setting of pole lamination body (1) magnetic pole symmetry axis, and described magnet steel hole arranged (3) is symmetricly set in the both sides of pole lamination body (1) magnetic pole symmetry axis.
2. pole lamination as claimed in claim 1, is characterized in that: the deviation angle of described ventilation hole (2) symmetry axis and pole lamination body (1) magnetic pole symmetry axis is 1/4 stator tooth elongation.
3. one kind adopts the rotor of permanent-magnetic power generator iron core of pole lamination as claimed in claim 1 or 2, it is characterized in that: described rotor core is being axially segmental structure, each stack of lamination is assembled by described pole lamination body (1), the magnet steel hole arranged (3) of pole lamination body (1) is embedded with magnet steel, adjacent stack of lamination, with ventilation hole (2) the symmetry axis location alignment of pole lamination body (1) and oppositely assembling each other, forms the structure of the symmetrical shaft staggered skew of each adjacent stack of lamination magnetic pole.
4. rotor of permanent-magnetic power generator as claimed in claim 3 is unshakable in one's determination, it is characterized in that: the side-play amount of described adjacent stack of lamination magnetic pole symmetry axis is 1/2 stator tooth elongation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620735.5U CN203537098U (en) | 2013-10-10 | 2013-10-10 | Magnetic pole punching sheet and permanent magnet generator rotor iron core using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620735.5U CN203537098U (en) | 2013-10-10 | 2013-10-10 | Magnetic pole punching sheet and permanent magnet generator rotor iron core using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537098U true CN203537098U (en) | 2014-04-09 |
Family
ID=50423272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620735.5U Expired - Lifetime CN203537098U (en) | 2013-10-10 | 2013-10-10 | Magnetic pole punching sheet and permanent magnet generator rotor iron core using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516083A (en) * | 2013-10-10 | 2014-01-15 | 东方电气集团东方电机有限公司 | Magnetic pole punching piece and permanent magnet generator rotor iron core with same |
| DE102019204960A1 (en) * | 2019-04-08 | 2020-10-08 | Audi Ag | Rotor for an electric machine |
-
2013
- 2013-10-10 CN CN201320620735.5U patent/CN203537098U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516083A (en) * | 2013-10-10 | 2014-01-15 | 东方电气集团东方电机有限公司 | Magnetic pole punching piece and permanent magnet generator rotor iron core with same |
| CN103516083B (en) * | 2013-10-10 | 2016-01-27 | 东方电气集团东方电机有限公司 | A kind of pole lamination and adopt the rotor of permanent-magnetic power generator of this pole lamination unshakable in one's determination |
| DE102019204960A1 (en) * | 2019-04-08 | 2020-10-08 | Audi Ag | Rotor for an electric machine |
| US11637468B2 (en) | 2019-04-08 | 2023-04-25 | Audi Ag | Rotor for an electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |