CN103904852A - Novel permanent magnetic structure outer rotor disc type motor - Google Patents
Novel permanent magnetic structure outer rotor disc type motor Download PDFInfo
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- CN103904852A CN103904852A CN201410155417.5A CN201410155417A CN103904852A CN 103904852 A CN103904852 A CN 103904852A CN 201410155417 A CN201410155417 A CN 201410155417A CN 103904852 A CN103904852 A CN 103904852A
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Abstract
The invention provides a novel permanent magnetic structure outer rotor disc type motor, and relates to the field of motors, in particular to the field of disc type motor rotors. The problems that an existing permanent magnet disc type iron coreless synchronous motor rotor adopts a uniform-thickness permanent magnet array, to some extent, materials are wasted, the matching relation between a main magnetic pole and an auxiliary magnetic pole can not be utilized, and magnetic flux density waveforms of air gaps tend to be a sine curve are solved. The novel permanent magnetic structure outer rotor disc type motor comprises a pair of motor rotors which are of an annular structure. The motor rotors are formed by fixedly connecting N permanent magnet sets end to end, the pair of motor rotors is arranged in a mirror-symmetry mode with a wedged winding disc as the center, and the air gap side of each motor rotor is of a planar structure. Each permanent magnet set is formed by arraying 8 permanent magnets in sequence, the 8 permanent magnets are the first permanent magnet, the second permanent magnet, the third permanent magnet, the fourth permanent magnet, the fifth permanent magnet, the sixth permanent magnet, the seventh permanent magnet and the eighth permanent magnet, and the axial cross sections of the 8 permanent magnets are all in a fan shape. The axial sections of the first permanent magnets and the fifth permanent magnets are rectangular, the axial sections of the permanent magnets in even numbers are trapezoid, and the axial sections of the third permanent magnets and the seventh permanent magnets are rectangular.
Description
Technical field
The present invention relates to machine field, be specifically related to disk type electric motor rotor field.
Background technology
At present, rare earth permanent magnet disc style motor is a kind of New-type electric machine developing, and is different from the radial structure of traditional round pillar motor, and disc-type permanent magnet motor is axial-flux electric machine, and it is simple in structure, reliable, volume is little, quality is light, loss is little, efficiency is high.Its most significant advantage is that motor adopts permanent magnet excitation, and rotor is lossless, and motor operational efficiency is high, and because rotor equity is arranged, stator winding has good radiating condition, can obtain very high power density.The moment of inertia of this rotor is little in addition, and electro mechanic time constant is little, and peak torque and locked-rotor torque are high, and torque/weight ratio is large, and low cruise is steady, has superior dynamic property.Utilize the excellent specific property of Nd-Fe-B permanent magnetic high-coercive force to make non iron-core motor, not only motor weight can significantly decline, and vibration, noise reduce greatly.But in the face of energy crisis; the reasonable use of Nd-Fe-Bo permanent magnet material seems particularly important; existing permanent magnet disk type coreless rotor mostly adopts uniform thickness permanent magnet array; adopt the special mode of magnetizing to make air gap flux density waveform be tending towards sinusoidal; but ignore coordinating of main pole and auxiliary magnetic pole, wasted to a certain extent material.
Summary of the invention
The present invention adopts uniform thickness permanent magnet array in order to solve existing permanent magnet disk type coreless synchronous electric motor rotor, the relation of having wasted to a certain extent material and cannot utilize main pole to match with auxiliary magnetic pole, make air gap flux density waveform be tending towards sinusoidal problem, the invention provides a kind of novel permanent magnetic body structure outer rotor disc type motor.
A kind of novel permanent magnetic body structure outer rotor disc type motor, it comprises a pair of rotor, and described rotor is cirque structure, and is fixedly connected with and is formed by N set of permanent magnets head and the tail, and described N is positive integer; The mirror symmetry setting centered by wedge shape winding dish of a pair of rotor, and the air gap side of each rotor is planar structure;
Each set of permanent magnets is arranged in order and is formed by 8 permanent magnets, 8 permanent magnets are respectively No. 1 permanent magnet, No. 2 permanent magnets, No. 3 permanent magnets, No. 4 permanent magnets, No. 5 permanent magnets, No. 6 permanent magnets, No. 7 permanent magnets, No. 8 permanent magnets, and the axial cross section of described 8 permanent magnets is fan-shaped;
No. 1 described permanent magnet is identical with the structure of No. 5 permanent magnets, and the axial cross section of No. 1 permanent magnet is rectangle, and the height of this rectangle is that h1 millimeter, width are 1 millimeter of α;
No. 2 permanent magnets, No. 4 permanent magnets, No. 6 permanent magnets are identical with the structure of No. 8 permanent magnets, and the axial cross section of No. 2 permanent magnets is trapezoidal, this trapezoidal upper base is h2 millimeter, go to the bottom into h1 millimeter, high be 3 millimeters of α;
No. 3 permanent magnet is identical with the structure of No. 7 permanent magnets, and the axial cross section of No. 3 permanent magnets is rectangle, and the height of this rectangle is that h2 millimeter, width are 2 millimeters of α;
Wherein, α 1> α 3> α 2, h1>h2.
Described α 1=α 2+2.1, α 3=α 2+1.05, h1=h2+2.
Described N is 8.
The magnetizing direction of No. 1 described permanent magnet magnetizes vertically, and the magnetizing direction that is arranged in two identical No. 1 permanent magnets of two rotor positions is identical, and the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of one of them rotor differ 45 degree in the counterclockwise direction, the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of another rotor differ 45 degree along clockwise direction, i=2,3,4,5,6,7,8.
The beneficial effect that the present invention brings is, No. 1 permanent magnet and No. 5 permanent magnets are as main pole, and all the other permanent magnets are auxiliary magnetic pole, because auxiliary magnetic pole has compensating action to main pole, can there is flat-top or the shape of a saddle according to the contribution of auxiliary magnetic pole in air-gap field waveform, reduce thickness and the width of auxiliary magnetic pole, can change its contribution to magnetic field, further improve air-gap field waveform, improve electric efficiency, compared with the motor that is h1 with same size rotor permanent magnet body thickness, electric efficiency has improved 4.64%
The present invention does No. 2 permanent magnets of auxiliary magnetic pole, No. 4 permanent magnets, No. 6 permanent magnets and No. 8 permanent magnets in echelon, reduce the thickness of No. 3 permanent magnets of auxiliary magnetic pole and No. 7 permanent magnets simultaneously, can reach the air gap flux density waveform making in magnetic field and be tending towards sinusoidal wave, and improve to a certain extent air gap flux density amplitude, compared with the motor that is h1 with same size rotor permanent magnet body thickness, air gap flux density amplitude has improved 3.5%, effectively weaken harmonic content in air-gap field, especially make 3 subharmonic amplitudes reduce by 16.99% simultaneously.
The present invention adopts rotor permanent magnet body structure not wide, not uniform thickness, and compared with the motor that is h1 with same size rotor permanent magnet body thickness, permanent magnetic material has been saved 16.67% and saved the energy; Rotor of the present invention is compared with traditional Halbach permanent magnet array, more meaningful in disk type coreless synchronous machine application aspect.
Accompanying drawing explanation
Fig. 1 is the integrally-built cutaway view of a kind of novel permanent magnetic body structure outer rotor disc type motor of the present invention, wherein, Reference numeral 9 represents end-cap assembly, Reference numeral 10 represents rotor, Reference numeral 11 represents wedge shape winding dish, Reference numeral 12 represents bearing, and Reference numeral 13 represents key, and Reference numeral 14 represents axle;
Fig. 2 is the permanent magnet layout viewing of the rotor of a kind of novel permanent magnetic body structure outer rotor disc type motor described in embodiment one;
Fig. 3 is the horizontal spreading schematic diagram of 8 permanent magnets of one group of set of permanent magnets on the rotor that arranges of a pair of one-tenth mirror symmetry described in embodiment one.
Embodiment
Embodiment one: referring to Fig. 1,2 and 3 explanation present embodiments, a kind of novel permanent magnetic body structure outer rotor disc type motor described in present embodiment, it comprises a pair of rotor, described rotor is cirque structure, and be fixedly connected with and formed by N set of permanent magnets head and the tail, described N is positive integer; The mirror symmetry setting centered by wedge shape winding dish of a pair of rotor, and the air gap side of each rotor is planar structure;
Each set of permanent magnets is arranged in order and is formed by 8 permanent magnets, 8 permanent magnets are respectively 7, No. 8 permanent magnets 8 of 6, No. 7 permanent magnets of 5, No. 6 permanent magnets of 4, No. 5 permanent magnets of 3, No. 4 permanent magnets of 2, No. 3 permanent magnets of 1, No. 2 permanent magnets of No. 1 permanent magnet, and the axial cross section of described 8 permanent magnets is fan-shaped;
No. 1 described permanent magnet 1 is identical with the structure of No. 5 permanent magnets 5, and the axial cross section of No. 1 permanent magnet 1 is rectangle, and the height of this rectangle is that h1 millimeter, width are 1 millimeter of α;
4, No. 6 permanent magnets 6 of 2, No. 4 permanent magnets of No. 2 permanent magnets are identical with the structure of No. 8 permanent magnets 8, and the axial cross section of No. 2 permanent magnets 2 is trapezoidal, this trapezoidal upper base is h2 millimeter, go to the bottom into h1 millimeter, high be 3 millimeters of α;
No. 3 permanent magnet 3 is identical with the structure of No. 7 permanent magnets 7, and the axial cross section of No. 3 permanent magnets 3 is rectangle, and the height of this rectangle is that h2 millimeter, width are 2 millimeters of α;
Wherein, α 1> α 3> α 2, h1>h2.
In present embodiment, 1 and No. 5 permanent magnets 5 of No. 1 permanent magnet are as main pole, and all the other permanent magnets are auxiliary magnetic pole, because auxiliary magnetic pole has compensating action to main pole, can there is flat-top or the shape of a saddle according to the contribution of auxiliary magnetic pole in air-gap field waveform, the thickness and the width that reduce auxiliary magnetic pole, can change its contribution to magnetic field, further improves air-gap field waveform.
Present embodiment is done 6, No. 8 permanent magnets 8 of 4, No. 6 permanent magnets of 2, No. 4 permanent magnets of No. 2 permanent magnets of auxiliary magnetic pole in echelon, reduce the thickness of 3 and No. 7 permanent magnets 7 of No. 3 permanent magnets of auxiliary magnetic pole simultaneously, can reach and make air-gap field sineization, and improve to a certain extent air gap flux density amplitude, effectively weakened harmonic content in air-gap field simultaneously;
The cutaway view of the permanent magnet disk type coreless synchronous machine described in present embodiment is shown in Figure 1, and this motor in the course of the work, is wedge shape winding dish in the middle of a pair of rotor, and wedge shape winding is motor stator; Between two disc rotor motors, form wedged air gap structure, the wedged air gap of formation can guarantee that the conductor duty ratio at the inside and outside footpath of rotor place is consistent.
Embodiment two: the difference of a kind of novel permanent magnetic body structure outer rotor disc type motor described in present embodiment and embodiment one is, described α 1=α 2+2.1, α 3=α 2+1.05, h1=h2+2.
Embodiment three: the difference of a kind of novel permanent magnetic body structure outer rotor disc type motor described in present embodiment and embodiment two is, described N is 8.
Embodiment four: present embodiment and embodiment one, the difference of a kind of novel permanent magnetic body structure outer rotor disc type motor described in two or three is, the magnetizing direction of No. 1 described permanent magnet 1 magnetizes vertically, and the magnetizing direction that is arranged in two identical No. 1 permanent magnets 1 of two rotor positions is identical, and the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of one of them rotor differ 45 degree in the counterclockwise direction, the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of another rotor differ 45 degree along clockwise direction, i=2, 3, 4, 5, 6, 7, 8.
In present embodiment, the magnetizing direction of No. 1 permanent magnet 1 of for example one of them rotor is that the magnetizing direction of 90 degree, No. 2 permanent magnets 2 is that the magnetizing direction of 135 degree, No. 3 permanent magnets 3 is that the magnetizing direction of 180 degree, No. 4 permanent magnets 4 is that the magnetizing direction of 225 degree, No. 5 permanent magnets 5 is that the magnetizing direction of 270 degree, No. 6 permanent magnets 6 is that the magnetizing direction of 315 degree, No. 7 permanent magnets 7 is that the magnetizing direction of 0 degree, No. 8 permanent magnets 8 is 45 degree;
, the magnetizing direction of another rotor No. 1 permanent magnet 1 is that the magnetizing direction of 90 degree, No. 2 permanent magnets 2 is that the magnetizing direction of 45 degree, No. 3 permanent magnets 3 is that the magnetizing direction of 0 degree, No. 4 permanent magnets 4 is that the magnetizing direction of 315 degree, No. 5 permanent magnets 5 is that the magnetizing direction of 270 degree, No. 6 permanent magnets 6 is that the magnetizing direction of 225 degree, No. 7 permanent magnets 7 is that the magnetizing direction of 180 degree, No. 8 permanent magnets 8 is 135 degree.
Claims (4)
1. a novel permanent magnetic body structure outer rotor disc type motor, is characterized in that, it comprises a pair of rotor, and described rotor is cirque structure, and is fixedly connected with and is formed by N set of permanent magnets head and the tail, and described N is positive integer; The mirror symmetry setting centered by wedge shape winding dish of a pair of rotor, and the air gap side of each rotor is planar structure;
Each set of permanent magnets is arranged in order and is formed by 8 permanent magnets, 8 permanent magnets are respectively No. 1 permanent magnet (1), No. 2 permanent magnets (2), No. 3 permanent magnets (3), No. 4 permanent magnets (4), No. 5 permanent magnets (5), No. 6 permanent magnets (6), No. 7 permanent magnets (7), No. 8 permanent magnets (8), and the axial cross section of described 8 permanent magnets is fan-shaped;
Described No. 1 permanent magnet (1) is identical with the structure of No. 5 permanent magnets (5), and the axial cross section of No. 1 permanent magnet (1) is rectangle, and the height of this rectangle is that h1 millimeter, width are 1 millimeter of α;
No. 2 permanent magnets (2), No. 4 permanent magnets (4), No. 6 permanent magnets (6) are identical with the structure of No. 8 permanent magnets (8), and the axial cross section of No. 2 permanent magnets (2) is trapezoidal, this trapezoidal upper base is h2 millimeter, go to the bottom into h1 millimeter, high be 3 millimeters of α;
No. 3 permanent magnets (3) are identical with the structure of No. 7 permanent magnets (7), and the axial cross section of No. 3 permanent magnets (3) is rectangle, and the height of this rectangle is that h2 millimeter, width are 2 millimeters of α;
Wherein, α 1> α 3> α 2, h1>h2.
2. a kind of novel permanent magnetic body structure outer rotor disc type motor according to claim 1, is characterized in that, described α 1=α 2+2.1, α 3=α 2+1.05, h1=h2+2.
3. a kind of novel permanent magnetic body structure outer rotor disc type motor according to claim 2, is characterized in that, described N is 8.
4. according to claim 1, a kind of novel permanent magnetic body structure outer rotor disc type motor described in 2 or 3, it is characterized in that, the magnetizing direction of described No. 1 permanent magnet (1) magnetizes vertically, and the magnetizing direction that is arranged in identical two No. 1 permanent magnets (1) in two rotor positions is identical, and the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of one of them rotor differ 45 degree in the counterclockwise direction, the magnetizing direction of i permanent magnet and the magnetizing direction of i-1 permanent magnet of another rotor differ 45 degree along clockwise direction, i=2, 3, 4, 5, 6, 7, 8.
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| CN201410155417.5A CN103904852B (en) | 2014-04-17 | 2014-04-17 | A kind of magnet structure outer rotor disc type motor |
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| CN201410155417.5A CN103904852B (en) | 2014-04-17 | 2014-04-17 | A kind of magnet structure outer rotor disc type motor |
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| CN103904852A true CN103904852A (en) | 2014-07-02 |
| CN103904852B CN103904852B (en) | 2016-01-20 |
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Cited By (10)
| 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 |
| WO2017098094A1 (en) * | 2015-12-10 | 2017-06-15 | Whylot Sas | Rotor of an axial-flow electromagnetic motor having a corrugated-shape integral magnet |
| JP2018506254A (en) * | 2015-01-16 | 2018-03-01 | ヤサ リミテッド | Axial flux machine |
| CN109462318A (en) * | 2018-11-06 | 2019-03-12 | 东南大学 | A kind of magnet structure axial stator iron-core less motor |
| CN111030401A (en) * | 2019-12-18 | 2020-04-17 | 苏州英磁新能源科技有限公司 | Disc type full-superconducting motor |
| CN111404350A (en) * | 2020-02-19 | 2020-07-10 | 哈尔滨工业大学 | Non-equal-height two-dimensional chamfering Halbach permanent magnet array suitable for planar motor |
| CN111917264A (en) * | 2020-08-03 | 2020-11-10 | 深圳市恒驱电机股份有限公司 | Ultrathin axial motor stator structure with stamping back plate and disc motor |
| CN112234779A (en) * | 2020-10-13 | 2021-01-15 | 山东省科学院自动化研究所 | Motor production method and system based on variable-thickness Halbach permanent magnet array |
| CN112735731A (en) * | 2020-12-11 | 2021-04-30 | 山东省科学院自动化研究所 | Mounting sleeve structure and mounting method for Halbach permanent magnet array with irregular cross section and unequal thickness |
| CN116197780A (en) * | 2023-04-14 | 2023-06-02 | 杭州立新电机股份有限公司 | Permanent magnet processing equipment for permanent magnet synchronous motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259359A (en) * | 2007-04-06 | 2008-10-23 | Toshiba Corp | Outer rotor permanent magnet motor |
| CN102396138A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - flux |
| CN203761235U (en) * | 2014-04-17 | 2014-08-06 | 哈尔滨理工大学 | Novel permanent-magnet structure outer-rotor disc-type motor |
-
2014
- 2014-04-17 CN CN201410155417.5A patent/CN103904852B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259359A (en) * | 2007-04-06 | 2008-10-23 | Toshiba Corp | Outer rotor permanent magnet motor |
| CN102396138A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - flux |
| CN203761235U (en) * | 2014-04-17 | 2014-08-06 | 哈尔滨理工大学 | Novel permanent-magnet structure outer-rotor disc-type motor |
Non-Patent Citations (1)
| Title |
|---|
| 王晓远: "《基于 Halbach 阵列盘式无铁心永磁同步电机的研究》", 《中国优秀硕士学位论文全文数据库》, 31 December 2006 (2006-12-31) * |
Cited By (14)
| 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 |
| JP2018506254A (en) * | 2015-01-16 | 2018-03-01 | ヤサ リミテッド | Axial flux machine |
| WO2017098094A1 (en) * | 2015-12-10 | 2017-06-15 | Whylot Sas | Rotor of an axial-flow electromagnetic motor having a corrugated-shape integral magnet |
| FR3045233A1 (en) * | 2015-12-10 | 2017-06-16 | Whylot | ROTOR OF AN AXIAL FLUX ELECTROMAGNETIC MOTOR HAVING AT LEAST ONE WAVED FORM MAGNET |
| CN109462318A (en) * | 2018-11-06 | 2019-03-12 | 东南大学 | A kind of magnet structure axial stator iron-core less motor |
| CN111030401A (en) * | 2019-12-18 | 2020-04-17 | 苏州英磁新能源科技有限公司 | Disc type full-superconducting motor |
| CN111404350A (en) * | 2020-02-19 | 2020-07-10 | 哈尔滨工业大学 | Non-equal-height two-dimensional chamfering Halbach permanent magnet array suitable for planar motor |
| CN111917264A (en) * | 2020-08-03 | 2020-11-10 | 深圳市恒驱电机股份有限公司 | Ultrathin axial motor stator structure with stamping back plate and disc motor |
| CN112234779A (en) * | 2020-10-13 | 2021-01-15 | 山东省科学院自动化研究所 | Motor production method and system based on variable-thickness Halbach permanent magnet array |
| CN112234779B (en) * | 2020-10-13 | 2022-02-08 | 山东省科学院自动化研究所 | Motor production method and system based on variable-thickness Halbach permanent magnet array |
| CN112735731A (en) * | 2020-12-11 | 2021-04-30 | 山东省科学院自动化研究所 | Mounting sleeve structure and mounting method for Halbach permanent magnet array with irregular cross section and unequal thickness |
| CN112735731B (en) * | 2020-12-11 | 2023-09-08 | 山东省科学院自动化研究所 | Method for mounting Halbach permanent magnet array with irregular cross section and unequal thickness |
| CN116197780A (en) * | 2023-04-14 | 2023-06-02 | 杭州立新电机股份有限公司 | Permanent magnet processing equipment for permanent magnet synchronous motor |
| CN116197780B (en) * | 2023-04-14 | 2023-09-26 | 佳木斯电机股份有限公司 | Permanent magnet processing equipment for permanent magnet synchronous motor |
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Effective date of registration: 20181122 Address after: 163000 Business Service Center A Business uniform 1028, Olin International Apartment Business District G, Jeanhu Road District, Daqing City, Heilongjiang Province Patentee after: DAQING HAOWEI PETROLEUM TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 150080 52 Xuefu Road, Nangang District, Harbin, Heilongjiang. Patentee before: Harbin University of Science and Technology |