CN204361868U - The sinusoidal magnetizer of p-m rotor - Google Patents
The sinusoidal magnetizer of p-m rotor Download PDFInfo
- Publication number
- CN204361868U CN204361868U CN201420532675.6U CN201420532675U CN204361868U CN 204361868 U CN204361868 U CN 204361868U CN 201420532675 U CN201420532675 U CN 201420532675U CN 204361868 U CN204361868 U CN 204361868U
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- Prior art keywords
- pole
- magnetizing
- rotor
- sinusoidal
- arc
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- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000005381 magnetic domain Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005415 magnetization Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to the sinusoidal magnetizer of a kind of p-m rotor, magnetizing for permanent magnet machine rotor, form primarily of pole of magnetizing, magnet exciting coil and yoke, pole of magnetizing has width on the surface and is partitioned into the groove of sinusoidal proportionate relationship, make to fill magnetic pole surfaces and be divided into arc about the pole geometric central axis line symmetry that magnetizes, not etc., the interval width between different arc is not unequal yet for the width of each arc, to magnetize pole with the p-m rotor realizing a kind of modulation; This pole of magnetizing applies magnetic fields to permanent magnetic powder in p-m rotor forming process, and permanent magnetic powder material internal magnetic domain generation control is arranged; Make the air-gap field waveform produced during the shaping rear loading motor of p-m rotor more close to sinusoidal wave, overcome the deficiency of air-gap field non-sine distribution in existing p-m rotor magnetization method, the effect of harmonic field can be reduced, benefit the performance improving magneto, reduce the vibration & noise of magneto, improve motor operation stability and reliability.
Description
Technical field
The utility model relates to a kind of permanent magnet magnetizer, and particularly a kind of p-m rotor magnetizer realizing magneto air-gap field Sine distribution, belongs to permanent magnet machine rotor technical field.
Background technology
At present, magneto relies on its lightness, high performance, the feature such as energy-efficient, occupy the market space widely, but in the process of actual motion, magneto Problems existing in vibration & noise is more and more paid close attention to, and the p-m rotor embodying magneto vibration & noise aspect performance becomes key factor.
First, the existing permanent magnet machine rotor air-gap field that especially overall structure p-m rotor is set up mostly is non-sinusoidal waveform, wherein there is a large amount of harmonic wave, thus make the copper loss of motor, iron loss, assorted consumption increase, decrease in efficiency, temperature rise raise, and cause magneto power savings advantages to be difficult to be presented as the market advantage.In addition, non-sine magnetic field also can produce pulsating electromagnetic torque and cause speed oscillation, affects operation stability and reliability, directly limit using and promoting of magneto.
Therefore, by researching and developing a kind of modulation system magnetizer, making p-m rotor produce air-gap field waveform more close to sinusoidal wave, having become a problem urgently to be resolved hurrily.
Summary of the invention
For above-mentioned existing technical problem, the utility model provides a kind of p-m rotor sinusoidal magnetizer, and the air-gap field waveform that the p-m rotor after magnetizing is produced in motor is more close sinusoidal wave, to improve stability and the reliability of magneto.
The sinusoidal magnetizer of this p-m rotor, primarily of two symmetrical place pole of magnetizing, two be arranged on the magnet exciting coil magnetizing and extremely go up respectively and the yoke being coated on two peripheries, pole of magnetizing is formed, the lead-out wire of described magnet exciting coil connects the pulse power, magnetizes for being placed in two p-m rotors magnetized between pole.
The main improvement realizing above-mentioned purpose is: the contact surface of described magnetize pole and p-m rotor also offers the groove modulated according to certain relation; Namely the groove extremely gone up that magnetizes makes the contact surface of this pole of magnetizing be formed
individual arc, the
individual arc
the magnetize center of circle angle of pole geometric center lines and NS pole boundary line of distance between center line be
electrical radian, the
individual arc
width center of circle arc angle be
electrical radian; Another pole of magnetizing
individual arc and aforementioned pole of magnetizing
individual arc is symmetrical arranged about the pole geometric center lines that magnetizes.
In addition, in order to benefit the control arrangement of permanent magnetic powder material internal magnetic domain, the magnetic line of force should do not had in the time slot that magnetizes to pass through, require that the degree of depth of groove is greater than its width for this reason.Further, magnetize pole and magnet exciting coil are changeable type structure, to adapt to the demand that magnetizes of different size size and unlike material p-m rotor.
Preferably, the degree of depth of groove is greater than the twice of its width, to ensure that permeability is high.
Preferably, arc number
mget odd number 5 or 7.
Further, magnetize pole and magnet exciting coil is made up of the soft magnetic material that permeability is high, to optimize the effect that magnetizes.
Compared with prior art, the pole of magnetizing that improvement of the present utility model focuses on contacting with p-m rotor has the groove modulated according to certain relation on the surface, the pole contact surface that makes to magnetize is divided into the arc about the pole geometric center lines symmetry that magnetizes, arc width and be partitioned into sinusoidal proportionate relationship, the width of each arc is not etc., interval width between different arc and the width of groove also unequal, the p-m rotor realizing a kind of modulation magnetizes pole.This pole of magnetizing applies magnetic fields to permanent magnetic powder in p-m rotor forming process, permanent magnetic powder material internal magnetic domain generation control is arranged, the air-gap field waveform produced when the shaping rear loading motor of p-m rotor is more close to sinusoidal wave, overcome the non-sinusoidal deficiency of air-gap field in existing p-m rotor magnetization method, be of value to the performance improving magneto, improve operation stability and reliability.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is physical dimension graph of a relation of the present utility model;
Fig. 3 is fluting size relationship figure of the present utility model;
Fig. 4 is the utility model magnetic line of force distribution map when magnetizing;
Fig. 5 is the utility model air-gap field wavy curve when magnetizing;
In figure: pole of 1, magnetizing, 2, magnet exciting coil, 3, yoke, 4, p-m rotor, 5, groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is illustrated in greater detail.
As shown in Figure 1, be arranged on primarily of two symmetrical 1, two, poles of magnetizing of placing the magnet exciting coil 2 magnetized on pole 1 respectively, and the yoke 3 being coated on two peripheries, pole 1 of magnetizing is formed.Two magnetize between pole 1 and lay p-m rotor 4 to be magnetized, and connect the pulse power by magnet exciting coil 2 lead-out wire.For realizing the object that sine magnetizes, the groove 5 modulated according to certain relation is offered especially at the contact surface of pole 1 with p-m rotor 4 that magnetize, groove 5 makes magnetize pole 1 contact surface formation width and the arc being partitioned into sinusoidal proportionate relationship, this sinusoidal proportionate relationship can be determined according to the principle of sinusoidal wave area equivalent, also can use triangular wave and sine wave modulation method design.
As shown in Figure 2, one of them groove 5 magnetized on pole 1 makes the contact surface of this pole 1 of magnetizing be formed
individual arc, the
individual arc
the magnetize center of circle angle of pole 1 geometric center lines and NS pole boundary line of distance between center line be
electrical radian, the
individual arc
width center of circle arc angle be
electrical radian; Another pole 1 of magnetizing
individual arc and aforementioned pole 1 of magnetizing
individual arc is arranged about the pole geometric center lines q axial symmetry that magnetizes.
In above-described embodiment, in order to benefit the control arrangement of permanent magnetic powder material internal magnetic domain, the magnetic line of force should do not had to pass through in the time slot 5 of magnetizing, the width a of groove 4 and degree of depth b is taken as b>a for this reason, general preferred b>2a, as shown in Figure 3.Further, magnetize pole 1 and magnet exciting coil 2 all can be designed to change the structure of formula, to adapt to the demand that magnetizes of different size size and unlike material p-m rotor 4.In the various embodiments described above, arc number
mget odd number 5 or 7.In the various embodiments described above, magnetize pole 1 and yoke 3 are made up of the soft magnetic material that permeability is high.
During use, owing to magnetizing, surface, pole 1 is divided into about the axisymmetric arc of q by groove 5, and not etc., the interval width between different arc is not unequal yet, so achieves a kind of pole 1 of magnetizing of modulation permanent-magnet rotor 4 for the width of each arc.This modulation system magnetize pole 1 in p-m rotor 4 forming process to permanent magnetic powder apply magnetic fields, permanent magnetic powder material internal magnetic domain generation control is arranged, is illustrated in figure 4 magnetic line of force distribution situation when the utility model sine magnetizes.The air-gap field waveform produced when the shaping rear loading motor of p-m rotor 4 is more close sinusoidal wave, as shown in Figure 5, wherein
for p-m rotor 4 pole span, the visible the utility model that uses magnetizes for p-m rotor, can realize magneto air-gap field Sine distribution.
Claims (4)
1. the sinusoidal magnetizer of p-m rotor, form primarily of two symmetrical pole of magnetizing (1), two yokes (3) being arranged on the magnet exciting coil (2) on pole of magnetizing (1) respectively and being coated on two pole of magnetizing (1) peripheries of placing, the lead-out wire of described magnet exciting coil (2) connects the pulse power, for the p-m rotor (4) be placed between two poles of magnetizing (1) magnetizes; It is characterized in that:
The groove (5) modulated according to certain relation is also offered with the contact surface of p-m rotor (4) in described pole of magnetizing (1), and the groove (5) namely on a pole of magnetizing (1) makes the contact surface of this pole of magnetizing (1) be formed
individual arc, the
individual arc
the magnetize center of circle angle of pole (1) geometric center lines and NS pole boundary line of distance between center line be
electrical radian, the
individual arc
width center of circle arc angle be
electrical radian, another pole of magnetizing (1)
individual arc and aforementioned pole of magnetizing (1)
individual arc is symmetrical arranged about the pole geometric center lines that magnetizes;
The degree of depth of described groove (5) is greater than its width;
Described pole of magnetizing (1) and magnet exciting coil (2) are changeable type structure.
2. the sinusoidal magnetizer of a kind of p-m rotor according to claim 1, it is characterized in that, the degree of depth of described groove (5) is greater than the twice of its width.
3. the sinusoidal magnetizer of a kind of p-m rotor according to claim 1 and 2, is characterized in that, described arc number
mget odd number 5 or 7.
4. the sinusoidal magnetizer of a kind of p-m rotor according to claim 1 and 2, it is characterized in that, described pole of magnetizing (1) and yoke (3) are made up of soft magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532675.6U CN204361868U (en) | 2014-09-17 | 2014-09-17 | The sinusoidal magnetizer of p-m rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532675.6U CN204361868U (en) | 2014-09-17 | 2014-09-17 | The sinusoidal magnetizer of p-m rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361868U true CN204361868U (en) | 2015-05-27 |
Family
ID=53263314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420532675.6U Expired - Fee Related CN204361868U (en) | 2014-09-17 | 2014-09-17 | The sinusoidal magnetizer of p-m rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762999A (en) * | 2016-04-26 | 2016-07-13 | 沈阳工业大学 | Low-harmonic-wave magnetizing method and apparatus for permanent-magnet rotor |
| CN106710784A (en) * | 2016-12-30 | 2017-05-24 | 上海三环磁性材料有限公司 | Radial two-pole magnetizing fixture |
-
2014
- 2014-09-17 CN CN201420532675.6U patent/CN204361868U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762999A (en) * | 2016-04-26 | 2016-07-13 | 沈阳工业大学 | Low-harmonic-wave magnetizing method and apparatus for permanent-magnet rotor |
| CN105762999B (en) * | 2016-04-26 | 2018-05-22 | 沈阳工业大学 | A kind of p-m rotor low harmony wave magnetization method and device |
| CN106710784A (en) * | 2016-12-30 | 2017-05-24 | 上海三环磁性材料有限公司 | Radial two-pole magnetizing fixture |
| CN106710784B (en) * | 2016-12-30 | 2018-12-18 | 上海三环磁性材料有限公司 | A kind of radial direction the two poles of the earth magnetizing clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |