CN105405570A - Magnetizing method of bonded neodymium iron boron ring magnet for compressor - Google Patents
Magnetizing method of bonded neodymium iron boron ring magnet for compressor Download PDFInfo
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- CN105405570A CN105405570A CN201410461844.6A CN201410461844A CN105405570A CN 105405570 A CN105405570 A CN 105405570A CN 201410461844 A CN201410461844 A CN 201410461844A CN 105405570 A CN105405570 A CN 105405570A
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- annular magnet
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- magnetic pole
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Abstract
The invention discloses a magnetizing method for a bonded neodymium iron boron ring magnet for a compressor. The magnet is provided with a plurality of magnetic poles, and magnetization is carried out in the manner that the magnetizing field directions of the magnetic poles are concentrated to a same focal point or dispersed; during magnetizing in the same focal point, the position of each focal point is on the outer side of the ring magnet; during magnetizing in the dispersing directions, the position of each dispersed focal point is on the inner side of the ring magnet; and moreover, on the peripheral surface of the ring magnet, the magnetization is carried out in the manner that the magnetizing field directions of the magnetic poles are not parallel to the direction of the axis. According to the magnetizing method for the bonded neodymium iron boron ring magnet for the compressor disclosed by the invention, harmonic waves of a motor can be eliminated, the noise vibration is reduced, and the motor performance of the compressor is improved.
Description
Technical field
The present invention relates to a kind of magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet.
Background technology
On existing compressor Agglutinate neodymium-iron-boron annular magnet 1 radial section, the magnetizing direction of each magnetic pole 2 is radial, and the direction that on the outer peripheral face of annular magnet 1, each magnetic pole 2 is arranged parallels to the axis 3, as depicted in figs. 1 and 2.The waveform of annular magnet is close to square wave, and can only be realized by the design of stator or drive system control and optimize the elimination of motor harmonic wave, when using the compressor electric motor of this Agglutinate neodymium-iron-boron annular magnet to run, noise vibration is larger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet, this method overcomes the defect that traditional endless magnet magnetizes, effective minimizing motor harmonic wave, reduces the vibrating noise that motor runs, improves motor performance.
For solving the problems of the technologies described above, the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet of the present invention, described magnet has some magnetic poles, on the radial section of magnet, the magnetic direction that magnetizes of described magnetic pole magnetizes or becomes to disperse direction magnetize by concentrating on same focus, when same focus magnetizes, the position of each focus is outside annular magnet, disperse direction when magnetizing, each position of dispersing focus is inside annular magnet, meanwhile, on the outer peripheral face of annular magnet, the magnetic direction that magnetizes of described magnetic pole is magnetized by with axial non-parallel direction.
Further, when same focus magnetizes, the position range of each focus is 1.0 ~ 1.8 times of magnet outer radius from annular magnet axle center.
Further, disperse direction when magnetizing, the position range of each divergence point is the magnet outer radius of 0.2 ~ 0.9 times from annular magnet axle center.
Further, magnetize as making magnetic pole and being axially inclination angle in described non-parallel direction.
Further, the angular range at described inclination angle is 2 ° ~ 60 °.
Further, on the outer peripheral face of annular magnet, described inclination angle is 12 °.
Further, on the outer peripheral face of annular magnet, described magnetic pole is substantially V-shaped in the axial direction.
Further, magnetize as making magnetic pole substantially V-shaped in the axial direction in described non-parallel direction.
Further, described V-shaped magnetic pole and axial angle scope are 2 ° ~ 50 °.
Further, described V-shaped magnetic pole and axis angle are 10 °.
Traditional radial magnetizing changes into concentrating or dispersing direction and magnetizes by the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet of the present invention, coordinates magnetic pole and the non-parallel direction of axis to magnetize, and magnetize in such as oblique pole or V-arrangement magnetizes.Different air-gap field waveforms can be realized as required, change the Distribution of Magnetic Field of annular magnet radial section and outer peripheral face axis, make the waveform of annular magnet close to sinusoidal wave, the electromotive force phase place of every root sliver each several part induction is different, different according to oblique polar angle degree, corresponding number of times motor harmonic wave can be eliminated, reduce noise vibration, improve the motor performance of compressor.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is described in further detail:
Fig. 1 is the schematic diagram magnetized in the magnetic pole radial magnetic field of traditional cementi neodymium iron boron annular magnet;
Fig. 2 is the pole orientation schematic diagram of traditional cementi neodymium iron boron annular magnet;
Fig. 3 is the schematic diagram that magnetic direction that in this method, magnetic pole magnetizes concentrates on same focus;
Fig. 4 is the schematic diagram that magnetic direction that in this method, magnetic pole magnetizes is dispersed;
Fig. 5 is magnetic pole and the schematic diagram axially tilted in this method;
Fig. 6 is the schematic diagram of V-arrangement magnetic pole in this method.
Embodiment
Embodiment 1
A magnetization method for compressor Agglutinate neodymium-iron-boron annular magnet, annular magnet 1 has some magnetic poles, comprises the magnetic pole 2 on magnet profile and the magnetic pole 2 on outer circumference surface.On the radial section of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 magnetizes by concentrating on same focus 21, as shown in Figure 3, meanwhile, on the outer peripheral face of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 is magnetized by with the non-parallel direction of axis 3, particularly, make each magnetic pole 2 on annular magnet 1 outer peripheral face become inclination angle with axis, such as tiltedly magnetize in pole, as shown in Figure 5.
When same focus magnetizes, the position of each focus is outside annular magnet 1.
Preferably, the position range of each focus is 1.0 ~ 1.8 times of annular magnet 1 outer radius from annular magnet 1 axle center.
Preferably, the angular range at inclination angle is 2 ° ~ 60 °, and such as magnetic pole 2 spends inclination angle with axial in 12 °.
Embodiment 2
A kind of magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet, magnetize to the annular magnet 1 in embodiment 1, difference is, on the radial section of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 magnetizes by dispersing direction, divergence point 22 as shown in Figure 4, meanwhile, on the outer peripheral face of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 is magnetized by with the non-parallel direction of axis 3, particularly, make magnetic pole 2 substantially V-shaped in the axial direction, as shown in Figure 6.
Preferably, V-shaped magnetic pole and axial angle scope are 2 ° ~ 50 °, and such as magnetic pole 2 and axis 3 are in 10 ° of angles, V-shaped in the axial direction.
Embodiment 3
A kind of magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet, magnetize to the annular magnet 1 in embodiment 1, difference is, on the radial section of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 magnetizes by concentrating on same focus 21, as shown in Figure 3, meanwhile, on the outer peripheral face of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 is magnetized by with the non-parallel direction of axis 3, particularly, make magnetic pole 2 substantially V-shaped in the axial direction, as shown in Figure 6.
Embodiment 4
A magnetization method for compressor Agglutinate neodymium-iron-boron annular magnet, magnetize to the annular magnet 1 in embodiment 1, difference is, on the radial section of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 magnetizes by dispersing direction, as shown in Figure 4, simultaneously, on the outer peripheral face of annular magnet 1, the magnetic direction that magnetizes of magnetic pole 2 is magnetized by with the non-parallel direction of axis 3, particularly, makes magnetic pole 2 become inclination angle with axis, such as tiltedly magnetize in pole, as shown in Figure 5.
The magnetic direction that the magnetic pole that this method changes traditional compressor Agglutinate neodymium-iron-boron annular magnet magnetizes, change into concentrate or radiation direction magnetize, different air-gap field waveforms can be realized as required, change magnetic pole and axial angle simultaneously, realize oblique pole and to magnetize or V-arrangement magnetizes, the electromotive force phase place difference that motor stator every root sliver each several part respond to, different according to oblique polar angle degree, the motor harmonic wave of corresponding number of times can be eliminated, reduce noise and the vibration of motor operation, thus improve the runnability of motor.
Claims (9)
1. the compressor magnetization method of Agglutinate neodymium-iron-boron annular magnet, described annular magnet has some magnetic poles, it is characterized in that: on the radial section of magnet, the magnetic direction that magnetizes of described magnetic pole magnetizes or becomes to disperse direction magnetize by concentrating on same focus, when same focus magnetizes, the position of each focus is outside annular magnet; Disperse direction when magnetizing, the position of each divergence point is inside annular magnet; Meanwhile, on the outer peripheral face of annular magnet, the magnetic direction that magnetizes of described magnetic pole is magnetized by with axial non-parallel direction.
2. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 1, is characterized in that: when same focus magnetizes, and the position range of each focus is 1.0 ~ 1.8 times of magnet outer radius from annular magnet axle center.
3. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 1, is characterized in that: disperse direction when magnetizing, the position range of each divergence point is the magnet outer radius of 0.2 ~ 0.9 times from annular magnet axle center.
4. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 1, is characterized in that: magnetize as making magnetic pole and being axially inclination angle in described non-parallel direction.
5. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 4, is characterized in that: the angular range at described inclination angle is 2 ° ~ 60 °.
6. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 5, is characterized in that: described inclination angle is 12 °.
7. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 1, is characterized in that: magnetize as making magnetic pole substantially V-shaped in the axial direction in described non-parallel direction.
8. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 7, is characterized in that, described V-shaped magnetic pole and axial angle scope are 2 ° ~ 50 °.
9. the magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet according to claim 8, is characterized in that, described V-shaped magnetic pole and axis angle are 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461844.6A CN105405570B (en) | 2014-09-12 | 2014-09-12 | The magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461844.6A CN105405570B (en) | 2014-09-12 | 2014-09-12 | The magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet |
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| CN105405570A true CN105405570A (en) | 2016-03-16 |
| CN105405570B CN105405570B (en) | 2017-07-25 |
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| CN201410461844.6A Active CN105405570B (en) | 2014-09-12 | 2014-09-12 | The magnetization method of compressor Agglutinate neodymium-iron-boron annular magnet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437843A (en) * | 2021-07-09 | 2021-09-24 | 浙江盘毂动力科技有限公司 | Rotor structure based on neodymium iron boron magnetic steel and manufacturing method |
| US11664172B2 (en) | 2018-03-30 | 2023-05-30 | The Research Foundation For The State University Of New York | Performance of capacitors |
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| JP2003217929A (en) * | 2002-01-25 | 2003-07-31 | Hiyoshi Techno:Kk | Plastic pole oriented magnet forming die and apparatus, and method for manufacturing plastic pole oriented magnet using the same |
| US20040263303A1 (en) * | 2003-03-17 | 2004-12-30 | Hitachi Metals, Ltd. | Magnetic-field-generating apparatus and magnetic field orientation apparatus using it |
| CN102013301A (en) * | 2010-10-19 | 2011-04-13 | 金浦威恩磁业(上海)有限公司 | Radial magnetizing or orientating device |
| CN102044921A (en) * | 2009-10-19 | 2011-05-04 | 通用电气公司 | Magnetization of non-magnetized permanent magnet segments in electrical machines |
| CN102742131A (en) * | 2008-05-23 | 2012-10-17 | 松下电器产业株式会社 | Manufacturing method of rare earth-iron ring magnet with continuous orientation controlled anisotropy |
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2014
- 2014-09-12 CN CN201410461844.6A patent/CN105405570B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003217929A (en) * | 2002-01-25 | 2003-07-31 | Hiyoshi Techno:Kk | Plastic pole oriented magnet forming die and apparatus, and method for manufacturing plastic pole oriented magnet using the same |
| US20040263303A1 (en) * | 2003-03-17 | 2004-12-30 | Hitachi Metals, Ltd. | Magnetic-field-generating apparatus and magnetic field orientation apparatus using it |
| CN102742131A (en) * | 2008-05-23 | 2012-10-17 | 松下电器产业株式会社 | Manufacturing method of rare earth-iron ring magnet with continuous orientation controlled anisotropy |
| CN102044921A (en) * | 2009-10-19 | 2011-05-04 | 通用电气公司 | Magnetization of non-magnetized permanent magnet segments in electrical machines |
| CN102013301A (en) * | 2010-10-19 | 2011-04-13 | 金浦威恩磁业(上海)有限公司 | Radial magnetizing or orientating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11664172B2 (en) | 2018-03-30 | 2023-05-30 | The Research Foundation For The State University Of New York | Performance of capacitors |
| CN113437843A (en) * | 2021-07-09 | 2021-09-24 | 浙江盘毂动力科技有限公司 | Rotor structure based on neodymium iron boron magnetic steel and manufacturing method |
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| Publication number | Publication date |
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| CN105405570B (en) | 2017-07-25 |
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Address after: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Patentee after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1051 Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |