CN104883018A - Axial-radial hybrid flux permanent magnet machine - Google Patents
Axial-radial hybrid flux permanent magnet machine Download PDFInfo
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- CN104883018A CN104883018A CN201510323643.4A CN201510323643A CN104883018A CN 104883018 A CN104883018 A CN 104883018A CN 201510323643 A CN201510323643 A CN 201510323643A CN 104883018 A CN104883018 A CN 104883018A
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Abstract
The invention provides an axial-radial hybrid flux permanent magnet machine, belonging to the field of permanent magnet machines. The permanent magnet machine includes a stator, a rotor, and a shaft, the stator is fixed on the shaft through fixed connection, the rotor is arranged at the outer side of the stator, the rotor and the shaft are in rotation connection through a bearing, the stator core is formed by the uniform circular arrangement of a plurality stator core modules along the shaft, each stator core module is provided with a radial tooth and two axial teeth and is provided with a stator winding, a plurality of radial permanent magnets are uniformly distributed on the inner circular wall surface of the rotor and are uniformly surrounding the shaft, and the inner surface of the end faces of the two sides of the rotor are uniformly provided with a plurality of axial permanent magnets in a radial manner. The axial-radial hybrid flux permanent magnet machine can effectively solve the problems that a permanent magnet machine in the prior art is small in space availability, non-compact in motor structure, difficult in machining and assembling, and cannot effectively improve the torque density and power density.
Description
Technical field
The present invention relates to technical field of motors, be specifically related to a kind of axial-radial mixing magnetic flow permanent magnet motor.
Background technology
Magneto conventional at present can be divided into axial magnetic flux and the large class of radial flux magneto two, and their end is all difficult to utilize, motor whole space effective rate of utilization is on the low side, and electric machine structure is not compact, and motor still has the space promoting torque density and power density.
In tradition in design, carry out dimensionally-optimised to motor, such as adopt at radial permanent magnet motor the structure that draw ratio is large, axial permanent magnetic motor adopts the structure that draw ratio is little, mark concentratred winding etc. technical measures are adopted to improve the torque density of motor, but its lifting is all limited, electric motor winding end is all difficult to be utilized, more compact structure is sought these people, in conjunction with topological structure and the performance characteristics of axial magnetic flux and radial flux magneto, two axial flux permanent magnet motor and a radial flux magneto is adopted to carry out being combined into a mixing magnetic flow permanent magnet motor, it makes full use of the idle space of motor, structure is compacter, effectively improve power of motor and torque density, but, in its structure stator core proposed, axial-radial magnetic flux is separate, for reaching stator core modularization, reduce stator yoke material, be convenient to the objects such as processing, its stator core material need adopt soft-magnetic composite material or the good steel of magnetic property, and its processing technology is complicated, torque density is not high.
Summary of the invention
The object of the invention is to the space availability ratio promoting existing magneto, the technical indicators such as the torque density of further lifting motor and power density, simplify assembly technology.
For achieving the above object, the present invention proposes axial and radial mixing behavior magnetic flow permanent magnet motor, the technical scheme of employing is as follows:
A kind of axial and radial mixing behavior magnetic flow permanent magnet motor, comprises stator (1), rotor (11) and axle (9), it is characterized in that,
Described stator (1) is made up of stator core (1-1), fixed connection shaft (8), axle (9), axial winding (2), radial winding (3), and in stator core (1-1), outside is the arc surface concentric with axle (9); Stator core (1-1) is fixed on axle (9) by fixed connection shaft (8); Axial winding (2) and radial winding (3) adopt centralized winding method, and radial winding (3) groups, is wound on longitudinal end, and axial winding (2) two groups, is wound on axial two ends respectively;
Described rotor (11) is made up of rotor core (7), multiple radial permanent magnet body (4) and multiple axial permanent magnetic body (5); Evenly Surface Mount is on the inner circle wall of rotor core (7) for multiple radial permanent magnet body (4), evenly distributed round axle (9); Multiple axial permanent magnetic body (5) is evenly distributed in radial line round axle (9), and axial opposite end permanent magnet (5) has identical polar, and it is identical with radial permanent magnet body (4) number of pole-pairs and polarity is contrary;
Air gap (L1) is left between described multiple radial permanent magnet body (4) and stator; Axial permanent magnetic body (5) on the both sides end face of described rotor core (7) respectively and leave air gap (L2), (L3) between stator;
The both sides end face of described rotor core (7) is rotationally connected respectively by between a bearing (6) and axle (9).
Further, described stator core (1-1) is made up of around axle (9) is evenly distributed multiple stator core module (10), described stator core module (10) casts global facility by a T-shaped iron core and an I-shaped iron core, T-shaped mandrel lower forms radial teeth (10-1) for the radial winding (3) of coiling, I-shaped iron core two ends form two axial tooths (10-2) for the axial winding (2) of coiling, and each stator core module is fixed on fixed connection shaft (8) with welding or bonding mode by I-shaped iron core position.
Further, the quantity of described stator core module 10, radial permanent magnet body 4 and axial permanent magnetic body 5 is determined according to concrete motor pole slot fit, and the pole slot fit of motor is decided by the rotating speed of designed motor and the supply frequency of winding.
Further, the material of described stator core module 10 adopts soft-magnetic composite material to process through the method for powder metallurgy, and the material of rotor core 7 adopts Steel material.
Further, two described axis and a radial winding are 3 phases, and 9 phase lines, directly by outside arbor 9 extractor, form three independently three-phase windings.
Further, described motor by extra-organismal controller, make three independently three-phase windings radial winding 3 and two end axles can be adopted to winding 2 co-operation pattern, or radial winding 3 and one end axial winding 2 co-operation pattern.
The present invention combines the feature of conventional radial motor and ventional disc motor, and reduce axial length and the external diameter of motor, compact conformation, acquired beneficial effect is as follows:
1, axial and radial mixing behavior magnetic flow permanent magnet motor is relative to conventional axial magneto and radial permanent magnet motor, make use of electric machine iron core fully simultaneously, make motor compacter, thus make the torque density of motor improve about 20% in axis and radial direction.
2, owing to adopting stator modules, stator core stock utilization improves, and achieves stator modules simultaneously, is convenient to processing and maintenance.
The present invention additionally uses the control structure of three independent winding, make Electric Machine Control more flexibly, regulate nargin larger.
Accompanying drawing explanation
Fig. 1 is axial and radial mixing behavior magnetic flow permanent magnet electric machine structure schematic diagram of the present invention
Fig. 2 is axial and radial mixing behavior magnetic flow permanent magnet motor outer rotor structural representation of the present invention
Fig. 3 is axial and radial mixing behavior magnetic flow permanent magnet stator core construction for motor schematic diagram of the present invention
Fig. 4 a, 4b, 4c, 4d are respectively axial and radial mixing behavior magnetic flow permanent magnet motor stator core module diagram of the present invention, front view, end view, vertical view
Fig. 5 is axial and radial mixing behavior magnetic flow permanent magnet motor stator of the present invention, rotor magnetic circuit schematic diagram
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein:
1-stator, 1-1 stator core, the axial winding of 2-, the radial winding of 3-, 4-radial permanent magnet body, 5-axial permanent magnetic body, 6-bearing, 7-rotor core, 8-fixed connection shaft, 9-axle, 10-stator core module, 10-1 is radial teeth, 10-2 is axial tooth, 11-rotor, L1-radial air gap, L2, L3-axial air-gap.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, in present embodiment, stator core 1-1 is made up of 12 stator core modules 10, and stator core 1-1, axial winding 2, radial winding 3, fixed connection shaft 8, axle 9 form stator 1.Stator core 1 is fixed on axle 9 by fixed connection shaft 8, and it is outside that rotor 11 is arranged on stator core 1.Described rotor 11 is by rotor core 7, radial permanent magnet body 4 and axial permanent magnetic body 5 form, on the inner circle wall of rotor core 7, even Surface Mount has 10 radial permanent magnet bodies 4, these 10 radial permanent magnet bodies 4 are evenly distributed round axle 9, inner surface on the both sides end face of rotor core 7 is respectively arranged with 10 axial permanent magnetic bodies 5, 10 axial permanent magnetic bodies 5 are evenly distributed in radial line round axle 9, axial opposite end permanent magnet 5 has identical polar, and it is contrary with its radial permanent magnet body 4 polarity, thus axial and radial mixing behavior magnetic flux can be formed, make electric machine structure more compact, torque density and power density get a promotion.The both sides end face of rotor core 7 realizes being rotationally connected respectively by between a bearing 6 and axle 9, as shown in Figure 2.Outside is the arc surface concentric with axle 9 in stator core 1-1,12 stator core modules 10 round axle 9 evenly distributed formation stator core 1-1, as shown in Figure 3.
Leave air gap L1 between radial permanent magnet body 4 and stator, the axial permanent magnetic body 5 on the both sides end face of rotor core 7 respectively and leave air gap L2, L3 between stator.
The material of stator core module 10 adopts soft-magnetic composite material (SMC) to process through the method for powder metallurgy; The material of rotor core 7 adopts the good steel of magnetic conductivity or is superposed by the silicon steel sheet that eddy current loss is very little and combines.
External rotor part of the present invention can be regarded as, and a segment length is respectively got at the outer roller axial two ends of external rotor radial magnetic flux drum type brake motor, folds respectively and forms, as shown in Figure 2 along outside diameter of cylinder to the direction at axle place; Fig. 3 is stator core construction schematic diagram, stator core is by 12 stator core module compositions, stator core modular structure shape is as shown in Fig. 4 a, 4b, 4c, 4d, stator core part can be regarded as, the stator core proximal ends of external rotor radial magnetic flux drum type brake motor is got a segment length, be divided into two large branch roads such as grade, extend along motor shaft to two ends respectively and form.Like this, relative to the End winding at conventional radial motor shaft two ends closer to central shaft, combine the feature of conventional radial motor and ventional disc motor, reduce axial length and the external diameter of motor, compact conformation, be beneficial to the lifting of torque density and power density, from finite element analysis, improve more than 11% compared to conventional motors.In addition, analyze by the setting of NS polarity in Fig. 5, its magnetic circuit is in the middle part of axial magnet N-axial air-gap-axial iron core end-iron core-radial core end-radial air gap-radial magnet S-rotor core-radial magnet N-radial air gap-radial core end-iron core in the middle part of-axial iron core end-axial air-gap-axial magnet S-rotor core-axial magnet N, axial and radial mixing behavior magnetic flux is provided with this, it is different from the Axial and radial independence magnetic flux of general axis radial motor, and magnetic loading is optimized.
There are axially two groups and radial one group of totally three groups of winding in the present invention, often group is three-phase, its mode of connection: 9 ABC phase conductors, directly by outside motor shaft 9 extractor, form three independently three-phase windings.The connected mode of this winding makes whole motor there are two kinds of mode of operations: 1. radial winding 3 and two end axles are to winding 2 co-operation, pattern of operating at full capacity; 2. axial winding 2 co-operation of radial winding 3 and one end, halfload mode of operation.The existence of two kinds of mode of operations, make Electric Machine Control more flexibly, regulate nargin larger.
Although be described preferred embodiment of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (6)
1. an axial and radial mixing behavior magnetic flow permanent magnet motor, comprises stator (1), rotor (11) and axle (9), it is characterized in that,
Described stator (1) is made up of stator core (1-1), fixed connection shaft (8), axle (9), axial winding (2), radial winding (3), and in stator core (1-1), outside is the arc surface concentric with axle (9); Stator core (1-1) is fixed on axle (9) by fixed connection shaft (8); Axial winding (2) and radial winding (3) adopt centralized winding method, and radial winding (3) groups, is wound on longitudinal end, and axial winding (2) two groups, is wound on axial two ends respectively;
Described rotor (11) is made up of rotor core (7), multiple radial permanent magnet body (4) and multiple axial permanent magnetic body (5); Evenly Surface Mount is on the inner circle wall of rotor core (7) for multiple radial permanent magnet body (4), evenly distributed round axle (9); Multiple axial permanent magnetic body (5) is evenly distributed in radial line round axle (9), and axial opposite end permanent magnet (5) has identical polar, and it is identical with radial permanent magnet body (4) number of pole-pairs and polarity is contrary;
Air gap (L1) is left between described multiple radial permanent magnet body (4) and stator; Axial permanent magnetic body (5) on the both sides end face of described rotor core (7) respectively and leave air gap (L2), (L3) between stator;
The both sides end face of described rotor core (7) is rotationally connected respectively by between a bearing (6) and axle (9).
2. motor according to claim 1, it is characterized in that described stator core (1-1) is made up of around axle (9) is evenly distributed multiple stator core module (10), described stator core module (10) casts global facility by a T-shaped iron core and an I-shaped iron core, T-shaped mandrel lower forms radial teeth (10-1) for the radial winding (3) of coiling, I-shaped iron core two ends form two axial tooths (10-2) for the axial winding (2) of coiling, each stator core module is fixed on fixed connection shaft (8) with welding or bonding mode by I-shaped iron core position.
3. the motor according to claim 1-2, it is characterized in that described stator core module (10), the quantity of radial permanent magnet body (4) and axial permanent magnetic body (5) determines according to concrete motor pole slot fit, and the pole slot fit of motor is decided by the rotating speed of designed motor and the supply frequency of winding.
4. the motor according to claim 1-2, it is characterized in that the material of described stator core module (10) adopts soft-magnetic composite material to process through the method for powder metallurgy, the material of rotor core (7) adopts Steel material.
5. the motor according to claim 1-2, is characterized in that two described axis and a radial winding are 3 phases, and 9 phase lines, directly by outside axle (9) extractor, form three independently three-phase windings.
6. the motor according to claim 1-2, it is characterized in that, by extra-organismal controller, make three independently three-phase windings radial winding (3) and two end axles can be adopted to winding (2) co-operation pattern, or axial winding (2) the co-operation pattern in radial winding (3) and one end.
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| CN201510323643.4A CN104883018A (en) | 2015-06-12 | 2015-06-12 | Axial-radial hybrid flux permanent magnet machine |
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| CN201510323643.4A CN104883018A (en) | 2015-06-12 | 2015-06-12 | Axial-radial hybrid flux permanent magnet machine |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958679A (en) * | 2016-05-27 | 2016-09-21 | 天津大学 | Hybrid magnetic flux permanent magnetic wheel hub motor for driving of electric automobile |
| CN106059131A (en) * | 2016-07-04 | 2016-10-26 | 湖南大学 | Hybrid magnetic path driving motor |
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
| CN107035769A (en) * | 2017-03-24 | 2017-08-11 | 南京航空航天大学 | A kind of contactless hub-bearing unit and its magnetic force control method |
| CN109450127A (en) * | 2018-12-25 | 2019-03-08 | 清华大学苏州汽车研究院（吴江） | A kind of motor stator and motor in axial magnetic field |
| CN110120716A (en) * | 2019-05-15 | 2019-08-13 | 华中科技大学 | A kind of combination array formula outer rotor axial and radial mixing behavior magnetic flow permanent magnet motor |
| CN110224562A (en) * | 2019-06-21 | 2019-09-10 | 赵滟玺 | A kind of energy-saving motor with the multi-direction three-dimensional flux path of axial-radial |
| CN112510946A (en) * | 2020-11-20 | 2021-03-16 | 哈尔滨工业大学 | High-power-density axial transverse flux outer rotor permanent magnet motor for aerospace field |
| CN113394893A (en) * | 2021-08-18 | 2021-09-14 | 东南大学 | Axial-radial five-rotor five-air-gap permanent magnet motor |
| US11159077B2 (en) | 2016-07-03 | 2021-10-26 | Reza Nasirizarandi | Hybrid hysteresis motor |
| CN116054454A (en) * | 2022-12-08 | 2023-05-02 | 淮阴工学院 | High-power-density shaft radial hybrid asynchronous motor |
| CN112564330B (en) * | 2020-12-24 | 2024-04-02 | 沈阳裕衡驱动科技有限公司 | Multi-rotor motor stator core structure |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958679A (en) * | 2016-05-27 | 2016-09-21 | 天津大学 | Hybrid magnetic flux permanent magnetic wheel hub motor for driving of electric automobile |
| US11159077B2 (en) | 2016-07-03 | 2021-10-26 | Reza Nasirizarandi | Hybrid hysteresis motor |
| CN106059131A (en) * | 2016-07-04 | 2016-10-26 | 湖南大学 | Hybrid magnetic path driving motor |
| CN106059131B (en) * | 2016-07-04 | 2019-02-12 | 湖南大学 | A kind of mixed magnetic circuit driving motor |
| CN107035769A (en) * | 2017-03-24 | 2017-08-11 | 南京航空航天大学 | A kind of contactless hub-bearing unit and its magnetic force control method |
| CN107035769B (en) * | 2017-03-24 | 2018-11-09 | 南京航空航天大学 | A kind of contactless hub-bearing unit and its magnetic force control method |
| CN107026547A (en) * | 2017-05-02 | 2017-08-08 | 华中科技大学 | A kind of cage-type rotor axial and radial mixing behavior magnetic flux multi-disc type permanent magnet motor |
| CN107026547B (en) * | 2017-05-02 | 2023-04-28 | 华中科技大学 | Cage rotor shaft radial mixed magnetic flux multi-disc permanent magnet motor |
| CN109450127A (en) * | 2018-12-25 | 2019-03-08 | 清华大学苏州汽车研究院（吴江） | A kind of motor stator and motor in axial magnetic field |
| CN110120716A (en) * | 2019-05-15 | 2019-08-13 | 华中科技大学 | A kind of combination array formula outer rotor axial and radial mixing behavior magnetic flow permanent magnet motor |
| CN110224562A (en) * | 2019-06-21 | 2019-09-10 | 赵滟玺 | A kind of energy-saving motor with the multi-direction three-dimensional flux path of axial-radial |
| CN112510946A (en) * | 2020-11-20 | 2021-03-16 | 哈尔滨工业大学 | High-power-density axial transverse flux outer rotor permanent magnet motor for aerospace field |
| CN112564330B (en) * | 2020-12-24 | 2024-04-02 | 沈阳裕衡驱动科技有限公司 | Multi-rotor motor stator core structure |
| CN113394893A (en) * | 2021-08-18 | 2021-09-14 | 东南大学 | Axial-radial five-rotor five-air-gap permanent magnet motor |
| CN113394893B (en) * | 2021-08-18 | 2021-11-09 | 东南大学 | Axial-radial five-rotor five-air-gap permanent magnet motor |
| CN116054454A (en) * | 2022-12-08 | 2023-05-02 | 淮阴工学院 | High-power-density shaft radial hybrid asynchronous motor |
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