CN102510192A - Sine wave disk type permanent magnet generator with novel magnetic pole structure - Google Patents
Sine wave disk type permanent magnet generator with novel magnetic pole structure Download PDFInfo
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- CN102510192A CN102510192A CN2011103910293A CN201110391029A CN102510192A CN 102510192 A CN102510192 A CN 102510192A CN 2011103910293 A CN2011103910293 A CN 2011103910293A CN 201110391029 A CN201110391029 A CN 201110391029A CN 102510192 A CN102510192 A CN 102510192A
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Abstract
The invention relates to a sine wave disk type permanent magnet generator with a novel magnetic pole structure, which is particularly suitable for a disk type permanent magnet generator for the power generation of ships. The generator comprises a base, a stator disk, a rotor disk, a magnetic pole fixed on the rotor disk, an end cover, a rotation shaft and a bearing, wherein the magnetic pole consists of an even number of sector pole blocks fixed on the rotor disk; the sector pole blocks are uniformly distributed along the circumference around the center of the rotor disk and fixed on one side of the rotor disk facing to the stator disk; the side surface of one side of each sector pole block facing to the stator disk is in a step shape; a high step is arranged in the middle of the step shape, and low steps are symmetrically and gradually lowered toward the two sides; distance between two adjacent sector pole blocks is equal; the stator disk comprises a stator core and a stator winding; and the stator winding is a centralized integral pitch winding. The sine wave disk type permanent magnet generator with a novel magnetic pole structure, provided by the invention, has the advantages that: the generator has an air-gap flux density waveform with a relatively low sine aberration rate and a back-electromotive force waveform, the motor efficiency is improved, the magnetic pole is simple and convenient to mount and fix, and the wire insertion difficulty of the winding and the motor manufacturing cost are reduced.
Description
Technical field
The present invention relates to a kind of sinusoidal wave desk permanent-magnet generator of novel field structure, be specially adapted to the boats and ships generating and use the desk permanent-magnet generator.
Background technology
Along with the development of motor technology, people have recognized that gradually common radial flux motors exists some weakness that self structure can't overcome, like problem such as motor cooling difficulty, utilance unshakable in one's determination be low.The air gap of disc-type permanent magnet motor is a plane, and air-gap field is axial, so be called motor in axial magnetic field again.Disc-type permanent magnet motor effectively utilizes the space of frame bore to rotating shaft; Thereby significantly shorten the axial dimension of motor; Compare with the magneto of radial flux; Its axial dimension is short, in light weight, volume is little, compact conformation, and torque density can improve about 20%, and disc type electric machine becomes one of hot research object in the permagnetic synchronous motor field.For the different power demand, disc-type permanent magnet motor can make the multiple unit motor easily, arranges in pairs or groups flexibly, thereby satisfies the needs of different capacity as playing with building blocks, and reduces motor design, manufacturing expense and R&D cycle.
Boats and ships have proposed higher requirement with high-power desk permanent-magnet generator to aspects such as torque density, efficient, power quality, reliability, maintenanceabilities; Therefore; Improving field structure and the mounting process of optimizing disc-type permanent magnet motor under the prerequisite of torque density, improving power quality and take into account reliability and maintenanceability is that the disc-type permanent magnet motor key for design belongs to.
Summary of the invention
Purpose of the present invention is: a kind of sinusoidal wave desk permanent-magnet generator that has the less air gap flux density waveform of sinusoidal aberration rate and counter potential waveform, electric efficiency height, magnetic pole installation and fix the novel field structure of easy, as to reduce motor windings rule difficulty and motor manufacturing cost is provided.
For realizing above-mentioned purpose, technical scheme of the present invention is:
A kind of sinusoidal wave desk permanent-magnet generator of novel field structure, comprise support, stator discs, be installed in stator discs each rotor disk of both sides, be fixed on magnetic pole and end cap, rotating shaft and bearing on the rotor disk; Said magnetic pole is made up of the fan-shaped utmost point piece of even number that is fixed on the rotor disk; Fan-shaped utmost point piece is uniformly distributed along the circumference around the center of rotor disk and is fixed on the side of rotor disk towards stator discs; Each fan-shaped utmost point piece is stairstepping towards the side profile of stator discs one side, and this step-like centre is high step, and drops to low step step by step to bilateral symmetry; Distance between the adjacent two fan-shaped utmost point pieces equates; Said stator discs comprises stator core and stator winding, and this stator winding is whole apart from winding for concentrating.
Further technical scheme is on the technique scheme basis:
The sinusoidal wave desk permanent-magnet generator of described novel field structure, each fan-shaped utmost point piece numbers of steps is an odd number, and the low step shape correspondence of the symmetry of middle high step both sides is identical, size is corresponding identical.
The sinusoidal wave desk permanent-magnet generator of described novel field structure, the height of the low step of each symmetry of the fan-shaped utmost point piece of each of magnetic pole is identical, and the height of the high step in centre of all fan-shaped utmost point pieces is identical.
The sinusoidal wave desk permanent-magnet generator of described novel field structure, high step arc length in the middle of low its arc length of step of the symmetry of high step both sides is less than or equal in the middle of each fan-shaped utmost point piece.
The sinusoidal wave disk generator of described novel field structure, said fan-shaped utmost point piece has 3 steps, and low its arc length of step of the symmetry of middle high step both sides is respectively the half the of middle high step arc length, or equates.
The sinusoidal wave disk generator of described novel field structure; Said fan-shaped utmost point piece has 5 steps; Low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre respectively; Low its arc length of step of all the other each symmetries is respectively the half the of middle high step arc length, or is 3/4ths of middle high step arc length, or equates.
The sinusoidal wave disk generator of described novel field structure; Said fan-shaped utmost point piece has 9 steps; Low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre that respectively low its arc length of step of all the other each symmetries is respectively the half the of middle high step arc length, or equates.
The sinusoidal wave desk permanent-magnet generator of described novel field structure, said rotor disk is uniformly distributed with along the circumference and fan-shaped extremely block-shaped identical groove towards a side of stator discs, is used for embedding and along the fan-shaped utmost point piece of circumferential registration; The fixation clip that reinforcing sector utmost point piece is arranged between the adjacent two fan-shaped utmost point pieces has the space between this fixation clip and fan-shaped utmost point piece and the rotor disk, with epoxy-based lacquers its embedding is fixed.
The sinusoidal wave desk permanent-magnet generator of described novel field structure is fixed with the back-up ring that non-magnet material is made on the magnetic pole outer rim, this back-up ring is fixed on the rotor disk outer rim through securing member.
In conjunction with structure of the present invention, principle, as follows to effect explanation of the present invention:
Thereby general fan-shaped magnetic pole and distribution, the short distance winding of adopting of desk permanent-magnet generator produces the less counter potential waveform of sinusoidal aberration rate; But it is fixing that fan-shaped magnetic pole is difficult on rotor; And take bigger electromagnetism air gap; Increased the consumption of expensive permanent magnetic material, especially outstanding to this problem of pot motor.And adopting distributed winding certainly will cause the increase of every extremely every phase groove number perhaps to adopt fractional-slot, both have all increased motor rule difficulty and manufacturing cost.The present invention adopts novel field structure to put in order apart from winding with concentrating, and can obtain aberration rate less air gap flux density waveform and counter potential waveform, and stairstepping magnetic pole two ends are left than large space and are convenient to its installation with fixing, reduce the motor manufacturing cost.
Remarkable result of the present invention is: optimized pole form; Obtain little air gap flux density of sinusoidal aberration rate and voltage waveform; The installation and the fixed form of high speed disc permanent magnet generator magnetic pole have been simplified; Reduce the manufacture difficulty and the cost of motor windings, reduced the various losses that the air gap flux density harmonic wave causes and the fluctuation of torque simultaneously, improved efficiency of motor.
Description of drawings
Fig. 1 is a desk permanent-magnet generator Structure sketch map;
Fig. 2 is fan-shaped pole sketch map;
Fig. 3 is the rotor disk structural representation that magnetic pole is installed;
Fig. 4 is the A-A partial sectional view of Fig. 3;
Fig. 5 is the unloaded counter potential waveform of emulation
Fig. 6 is the load phase current waveform of emulation;
Fig. 7 is the unloaded counter potential waveform of actual measurement;
Fig. 8 is the load phase current waveform of actual measurement.
Embodiment
Below in conjunction with accompanying drawing and embodiment to further explain of the present invention.
Embodiment 1:
Like Fig. 1,2,3, shown in 4; A kind of sinusoidal wave desk permanent-magnet generator of novel field structure, comprise support 1, stator discs 2, be installed in stator discs 2 each rotor disk 4 of both sides, be fixed on magnetic pole 5 and end cap 3, rotating shaft 6 and bearing 7 on the rotor disk 4; Said magnetic pole 5 is made up of the fan-shaped utmost point piece 5.1 of even number that is fixed on the rotor disk 4; As shown in Figure 3, the fan-shaped utmost point piece 5.1 of present embodiment has 4; Fan-shaped utmost point piece 5.1 is uniformly distributed along the circumference around the center of rotor disk 4 and is fixed on the side of rotor disk 4 towards stator discs 2; As shown in Figure 2, each fan-shaped utmost point piece 5.1 is stairstepping towards the side profile of stator discs 2 one sides, and this step-like centre is high step, and drops to low step step by step to bilateral symmetry; Distance between the adjacent two fan-shaped utmost point pieces 5.1 equates; Said stator discs 2 comprises stator core 2.1 and stator winding 2.2, and this stator winding 2.2 is whole apart from winding for concentrating, rather than adopts alternating current machine distribution, short distance winding commonly used.Each fan-shaped utmost point piece 5.1 numbers of steps is an odd number, and the low step shape correspondence of the symmetry of middle high step both sides is identical, and size is corresponding identical.The height of the low step of each symmetry of the fan-shaped utmost point piece 5.1 of each of magnetic pole 5 is identical, and the height of the high step in centre of all fan-shaped utmost point pieces 5.1 is identical.High step arc length in the middle of low its arc length of step of symmetry of high step both sides is less than or equal in the middle of each fan-shaped utmost point piece 5.1.The said fan-shaped utmost point piece 5.1 of present embodiment has 5 steps, and low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre that respectively low its arc length of step of all the other each symmetries is respectively the half the of middle high step arc length.When adopting low its arc length of step of each symmetry to be 3/4ths technical schemes of middle high step arc length respectively, then be a new embodiment.When adopting low its arc length of step of each symmetry to equate technical scheme with the high step arc length in centre respectively, then be again a new embodiment.As shown in Figure 3, said rotor disk 4 is uniformly distributed with along the circumference and the identical groove of fan-shaped utmost point piece 5.1 shapes towards a side of stator discs 2, is used for embedding and along the fan-shaped utmost point piece 5.1 of circumferential registration; Like Fig. 3, shown in 4; The fixation clip 8 that reinforcing sector utmost point piece 5.1 is arranged between the adjacent two fan-shaped utmost point pieces 5.1; Between this fixation clip 8 and fan-shaped utmost point piece 5.1 and the rotor disk 4 space is arranged, with epoxy-based lacquers its embedding is fixed, the embedding of this epoxy-based lacquers is embedding again after being fixed on fan-shaped utmost point piece 5.1 on the rotor disk 4 with fixation clip 8; And the rotor disk 4 that will be fixed with fan-shaped utmost point piece 5.1 is together through fire insulation oven dry, thus the cured epoxy lacquer.As shown in Figure 1, be fixed with the back-up ring 9 that non-magnet material is made on magnetic pole 5 outer rims, this back-up ring 9 is fixed on rotor disk 4 outer rims through securing member, and magnetic pole is radially thrown away by centrifugal force when being used to prevent the rotor high-speed rotation.Stator discs 2 is fixed in the support 1 through non-magnetic conduction annular element 2.3.Rotating shaft 6 two ends are bearing on the support 1 by angular contact ball bearing 7, adopt angular contact ball bearing to offset axial force.
Embodiment 2:
Different with the foregoing description 1 is, said fan-shaped utmost point piece 5.1 has 3 steps, low its arc length of step of the symmetry of middle high step both sides be respectively in the middle of high step arc length half the.When low its arc length of step of the symmetry of high step both sides equates technical scheme with the high step arc length in centre respectively in the middle of adopting, then be a new embodiment.
Embodiment 3:
Different with the foregoing description 1 is, said fan-shaped utmost point piece 5.1 has 9 steps, and low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre respectively, low its arc length of step of all the other each symmetries be respectively in the middle of half of high step arc length.When adopting low its arc length of step of each symmetry to equate technical scheme with the high step arc length in centre respectively, then be a new embodiment.
Fig. 5 and Fig. 7 are respectively unloaded counter potential waveform of simulation calculation and the unloaded counter potential waveform of actual measurement; Fig. 6 and Fig. 8 are respectively simulation calculation load current waveform and actual measurement load current waveform; Show through simulation calculation and experimental test comparison of wave shape; The unloaded counter potential waveform of simulation calculation and the amplitude of load current waveform and waveform are all very approaching with the experimental test waveform; The sinusoidal aberration rate of winding back emf and current waveform is very little, and significant effect is played in the improvement of unloaded counter potential waveform of stepped fan-shaped pole pair of the present invention and current waveform.
Claim protection range of the present invention is not limited to the foregoing description.
Claims (9)
1. the sinusoidal wave desk permanent-magnet generator of a novel field structure; It is characterized in that, comprise support (1), stator discs (2), be installed in stator discs (2) each rotor disk (4) of both sides, be fixed on magnetic pole (5) and end cap (3), rotating shaft (6) and bearing (7) on the rotor disk (4); Said magnetic pole (5) is made up of the fan-shaped utmost point piece of even number (5.1) that is fixed on the rotor disk (4); Fan-shaped utmost point piece (5.1) is uniformly distributed along the circumference around the center of rotor disk (4) and is fixed on the side of rotor disk (4) towards stator discs (2); Each fan-shaped utmost point piece (5.1) is stairstepping towards the side profile of stator discs (2) one sides, and this step-like centre is high step, and drops to low step step by step to bilateral symmetry; Distance between the adjacent two fan-shaped utmost point pieces (5.1) equates; Said stator discs (2) comprises stator core (2.1) and stator winding (2.2), and this stator winding (2.2) is whole apart from winding for concentrating.
2. the sinusoidal wave desk permanent-magnet generator of novel field structure as claimed in claim 1 is characterized in that, each fan-shaped utmost point piece (5.1) numbers of steps is an odd number, and the low step shape correspondence of the symmetry of middle high step both sides is identical, and size is corresponding identical.
3. the sinusoidal wave desk permanent-magnet generator of novel field structure as claimed in claim 2; It is characterized in that; The height of the low step of each symmetry of the fan-shaped utmost point piece of each of magnetic pole (5) (5.1) is identical, and the height of the high step in centre of all fan-shaped utmost point pieces (5.1) is identical.
4. the sinusoidal wave desk permanent-magnet generator of novel field structure as claimed in claim 2 is characterized in that, high step arc length in the middle of low its arc length of step of the symmetry of high step both sides is less than or equal in the middle of each fan-shaped utmost point piece (5.1).
5. the sinusoidal wave disk generator of novel field structure as claimed in claim 4 is characterized in that, said fan-shaped utmost point piece (5.1) has 3 steps, and low its arc length of step of the symmetry of middle high step both sides is respectively the half the of middle high step arc length, or equates.
6. the sinusoidal wave disk generator of novel field structure as claimed in claim 4; It is characterized in that; Said fan-shaped utmost point piece (5.1) has 5 steps, and low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre that respectively low its arc length of step of all the other each symmetries is respectively the half the of middle high step arc length; Or be 3/4ths of middle high step arc length, or equate.
7. the sinusoidal wave disk generator of novel field structure as claimed in claim 4; It is characterized in that; Said fan-shaped utmost point piece (5.1) has 9 steps; Low its arc length of step of symmetry that wherein is positioned at two ends equates with the high step arc length in centre that respectively low its arc length of step of all the other each symmetries is respectively the half the of middle high step arc length, or equates.
8. the sinusoidal wave desk permanent-magnet generator of novel field structure as claimed in claim 1; It is characterized in that; Said rotor disk (4) is uniformly distributed with along the circumference and the identical groove of fan-shaped utmost point piece (5.1) shape towards a side of stator discs (2), is used for embedding and along the fan-shaped utmost point piece of circumferential registration (5.1); The fixation clip (8) that reinforcing sector utmost point piece (5.1) is arranged between the adjacent two fan-shaped utmost point pieces (5.1) has the space between this fixation clip (8) and fan-shaped utmost point piece (5.1) and the rotor disk (4), with epoxy-based lacquers its embedding is fixed.
9. the sinusoidal wave desk permanent-magnet generator of novel field structure as claimed in claim 1 is characterized in that, is fixed with the back-up ring (9) that non-magnet material is made on magnetic pole (5) outer rim, and this back-up ring (9) is fixed on rotor disk (4) outer rim through securing member.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103910293A CN102510192A (en) | 2011-12-01 | 2011-12-01 | Sine wave disk type permanent magnet generator with novel magnetic pole structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103910293A CN102510192A (en) | 2011-12-01 | 2011-12-01 | Sine wave disk type permanent magnet generator with novel magnetic pole structure |
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| CN102510192A true CN102510192A (en) | 2012-06-20 |
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| CN2011103910293A Pending CN102510192A (en) | 2011-12-01 | 2011-12-01 | Sine wave disk type permanent magnet generator with novel magnetic pole structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319919A (en) * | 2014-09-30 | 2015-01-28 | 洛阳市施凯信机电科技有限公司 | Motor for sewing machine |
| CN104734438A (en) * | 2015-04-20 | 2015-06-24 | 哈尔滨工业大学 | Axial-field permanent magnet compensated impulse generator with double contra-rotating rotors |
| CN106787328A (en) * | 2016-12-30 | 2017-05-31 | 北京良明宇航节能动力装备技术开发中心 | A kind of disk type electric motor rotor |
| CN111641307A (en) * | 2020-06-10 | 2020-09-08 | 山东大学 | High-speed surface-embedded dual-rotor axial flux permanent magnet motor |
| CN112491197A (en) * | 2020-11-20 | 2021-03-12 | 安徽大学 | Oil-cooled axial flux motor with built-in axial flow fan |
| CN114567121A (en) * | 2022-02-28 | 2022-05-31 | 北京纳米能源与***研究所 | Power generation method and device |
| WO2023138051A1 (en) * | 2022-01-24 | 2023-07-27 | 浙江盘毂动力科技有限公司 | Rotor disc, axial magnetic field motor rotor, and manufacturing method |
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| CN1479431A (en) * | 2002-08-26 | 2004-03-03 | 王和平 | Coreless high power density disk type electric machine |
| CN101796707A (en) * | 2007-09-11 | 2010-08-04 | 大金工业株式会社 | Axial-gap rotary electric machine and rotary drive |
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2011
- 2011-12-01 CN CN2011103910293A patent/CN102510192A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479431A (en) * | 2002-08-26 | 2004-03-03 | 王和平 | Coreless high power density disk type electric machine |
| CN101796707A (en) * | 2007-09-11 | 2010-08-04 | 大金工业株式会社 | Axial-gap rotary electric machine and rotary drive |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319919A (en) * | 2014-09-30 | 2015-01-28 | 洛阳市施凯信机电科技有限公司 | Motor for sewing machine |
| CN104734438A (en) * | 2015-04-20 | 2015-06-24 | 哈尔滨工业大学 | Axial-field permanent magnet compensated impulse generator with double contra-rotating rotors |
| CN106787328A (en) * | 2016-12-30 | 2017-05-31 | 北京良明宇航节能动力装备技术开发中心 | A kind of disk type electric motor rotor |
| CN106787328B (en) * | 2016-12-30 | 2023-12-22 | 北京良明宇航节能动力装备技术开发中心 | Disk type motor rotor |
| CN111641307A (en) * | 2020-06-10 | 2020-09-08 | 山东大学 | High-speed surface-embedded dual-rotor axial flux permanent magnet motor |
| CN111641307B (en) * | 2020-06-10 | 2022-04-08 | 山东大学 | High-speed surface-embedded dual-rotor axial flux permanent magnet motor |
| CN112491197A (en) * | 2020-11-20 | 2021-03-12 | 安徽大学 | Oil-cooled axial flux motor with built-in axial flow fan |
| CN112491197B (en) * | 2020-11-20 | 2022-04-08 | 安徽大学 | Oil-cooled axial flux motor with built-in axial flow fan |
| WO2023138051A1 (en) * | 2022-01-24 | 2023-07-27 | 浙江盘毂动力科技有限公司 | Rotor disc, axial magnetic field motor rotor, and manufacturing method |
| CN114567121A (en) * | 2022-02-28 | 2022-05-31 | 北京纳米能源与***研究所 | Power generation method and device |
| CN114567121B (en) * | 2022-02-28 | 2024-06-11 | 北京纳米能源与***研究所 | Power generation method and device |
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