CN204334260U - The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve - Google Patents
The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve Download PDFInfo
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- CN204334260U CN204334260U CN201520053675.2U CN201520053675U CN204334260U CN 204334260 U CN204334260 U CN 204334260U CN 201520053675 U CN201520053675 U CN 201520053675U CN 204334260 U CN204334260 U CN 204334260U
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- permanent magnet
- stator
- adjustable magnetic
- ring
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve, belongs to technical field of motors.The utility model is complicated in order to solve existing axial magnetic flux modulating motor adjustable magnetic ring fixed form, and the problem that permanent magnet utilance is low.Each air gap side surface of its stator is adhesively fixed an adjustable magnetic ring, and adjustable magnetic ring is fixedly connected with rotating shaft; Adjustable magnetic ring is made up of the adjustable magnetic block of along the circumferential direction dispersed arrangement; Rotor comprises rotor disk and magnet ring, and magnet ring is bonded on the air gap side surface of rotor disk, and magnet ring is made up of the polylith permanent magnet of along the circumferential direction evenly arrangement, and every block permanent magnet is made up of the permanent magnet segmentation being along the circumferential direction evenly cut into four sections; Along clockwise direction, in every block permanent magnet, first and third permanent magnet segmentation is along the circumferential direction magnetized, and magnetizing direction is contrary, and in every block permanent magnet, second, four permanent magnet segmentations are magnetized vertically, and magnetizing direction is contrary.The utility model is as a kind of compound machine.
Description
Technical field
The utility model relates to the axial magnetic field modulation system compound machine of magnetism-regulating structure and magnetizing direction improvement, belongs to technical field of motors.
Background technology
Modern drive system is tended to use Direct driver always, can save mechanical gear drive system like this, eliminates the vibration noise of mechanical gear, reduces mechanical loss, obtains higher system effectiveness, and then energy savings.But because the motor of Direct driver is in order to export larger torque, general volume is all larger, and during load running, electric current is comparatively large, adds the cost of control circuit components and parts.
Owing to having, noise is low, efficiency is high, easy to maintenance, reliability is high and the advantage such as overload protection for magnetic gear, causes everybody common concern.Compound machine further develops as magnetic gear train assembly, and it still belongs to the category of magnetic gear train assembly, and the low speed high torque of control and system that it achieves high-speed electric expreess locomotive simultaneously exports.
Compound machine is divided into radial flux modulation system and axial magnetic flux modulation system, axial magnetic flux modulation system motor relative radial flux modulation system motor, there is volume little, easy for installation, the advantage that low speed torque is larger, but existing axial magnetic flux modulating motor, adjustable magnetic ring is between rotor, both sides have air gap to separate, due to the support demand of structure, and do not affect the magnetic field path of magnetism-regulating structure as far as possible, filling epoxy resin non-magnet material is wanted between each adjustable magnetic block, the heat dispersion of motor is caused to weaken, and be limited to the adhesive strength of epoxy resin, the mechanical stability of magnetism-regulating structure is bad, plain shaft adopts common axial charging to the permanent magnet be attached on rotor disk of Flux modulation formula compound machine simultaneously, and permanent magnet utilance is not high, and the rotor torque of generation is little.
Summary of the invention
The utility model object is complicated in order to solve existing axial magnetic flux modulating motor adjustable magnetic ring fixed form, and the problem that permanent magnet utilance is low, provide the axial magnetic field modulation system compound machine of a kind of magnetism-regulating structure and magnetizing direction improvement.
The axial magnetic field modulation system compound machine that magnetism-regulating structure described in the utility model and magnetizing direction improve, it comprises rotating shaft, stator, two rotors and two adjustable magnetic rings, stator is fixed in rotating shaft, two rotors are that specular is arranged at stator both sides, it is air gap between each rotor and stator, each rotor and rotating shaft are rotationally connected by bearing
Each air gap side surface of stator is adhesively fixed an adjustable magnetic ring, and adjustable magnetic ring is fixedly connected with rotating shaft; Adjustable magnetic ring is made up of the adjustable magnetic block of along the circumferential direction dispersed arrangement;
Rotor comprises rotor disk and magnet ring, and magnet ring is bonded on the air gap side surface of rotor disk, and magnet ring is made up of the polylith permanent magnet of along the circumferential direction evenly arrangement, and every block permanent magnet is made up of the permanent magnet segmentation being along the circumferential direction evenly cut into four sections; Along clockwise direction, in every block permanent magnet, first and third permanent magnet segmentation is along the circumferential direction magnetized, and magnetizing direction is contrary, and in every block permanent magnet, second, four permanent magnet segmentations are magnetized vertically, and magnetizing direction is contrary.
Each air gap side surface of stator is evenly provided with multiple slot for winding, and multiple slot for winding is uniformly distributed along the circumferencial direction of stator sidewall, the slot for winding one_to_one corresponding on stator two air gap side surfaces; Each is to arranging an annular stator winding in slot for winding;
The number of pole-pairs P of magnet ring
1with annular stator winding number of pole-pairs P
2sum is adjustable magnetic block number N in adjustable magnetic ring
s.
Advantage of the present utility model: the axial magnetic field modulation system compound machine that magnetism-regulating structure described in the utility model and magnetizing direction improve is symmetrical structure, improves the magnetism-regulating structure of motor and permanent magnet magnetizing direction.
At electric machine structure process aspect, magnetism-regulating structure is improved, namely adjustable magnetic ring clings to stator air gap side surface, eliminate existing plain shaft to the air gap between magnetic-field modulation-type compound machine adjustable magnetic ring and stator, motor shaft to contraction in length, smaller volume, the convenient fixing of adjustable magnetic ring, electric machine structure is more simply compact, and mechanical stability improves, and manufacturing process and cost all reduce.
In motor performance, the mode of magnetizing of the utility model permanent magnet adopts adjacent two segmentation magnetizing directions to differ the axis of 90 ° and the circumferential mode of magnetizing of intersecting, improve the utilance of permanent magnet, Driving Torque increases, and because every block permanent magnet cuts into variant four sections of magnetizing direction, eddy current loss reduces.
Magnetize in mode situation in the magnetize axis that adopts adjacent two segmentation magnetizing directions to differ 90 ° of permanent magnet with circumferential the intersection, motor before improving magnetism-regulating structure further and after improving is analyzed, motor adjustable magnetic ring after being improved and the air gap harmonic content between rotor totally reduce, Driving Torque further increases 15%, again because motor volume reduces, make that torque density is corresponding to be improved, low speed high torque characteristic can be applicable to the Direct Driving System of electric automobile very well.
Due to eliminate existing plain shaft between adjustable magnetic block in magnetic-field modulation-type compound machine for the use of fixing epoxy resin non-magnet material, reduce motor manufacturing cost, originally the space of placement epoxy resin non-magnet material can be used for ventilation and heat, improve the radiating efficiency of motor, and then just expanded motor armature winding can obtain larger torque density by added input current.
Accompanying drawing explanation
Fig. 1 is the perspective view of the axial magnetic field modulation system compound machine that magnetism-regulating structure described in the utility model and magnetizing direction improve;
Fig. 2 is the cutaway view of the axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve;
Fig. 3 is the structural representation of rotor;
Fig. 4 is the magnetizing direction schematic diagram of permanent magnet in magnet ring;
Fig. 5 is the structural representation of adjustable magnetic ring.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 5, the axial magnetic field modulation system compound machine that magnetism-regulating structure described in present embodiment and magnetizing direction improve, it comprises rotating shaft 1, stator 2, two rotors and two adjustable magnetic rings 4, stator 2 is fixed in rotating shaft 1, two rotors are that specular is arranged at stator 2 both sides, be air gap between each rotor and stator 2, each rotor and rotating shaft 1 are rotationally connected by bearing
Each air gap side surface of stator 2 is adhesively fixed an adjustable magnetic ring 4, and adjustable magnetic ring 4 is fixedly connected with rotating shaft 1; Adjustable magnetic ring 4 is made up of the adjustable magnetic block of along the circumferential direction dispersed arrangement;
Rotor comprises rotor disk 3-1 and magnet ring 3-2, magnet ring 3-2 is bonded on the air gap side surface of rotor disk 3-1, magnet ring 3-2 is made up of the polylith permanent magnet of along the circumferential direction evenly arrangement, and every block permanent magnet is made up of the permanent magnet segmentation being along the circumferential direction evenly cut into four sections; Along clockwise direction, in every block permanent magnet, first and third permanent magnet segmentation is along the circumferential direction magnetized, and magnetizing direction is contrary, and in every block permanent magnet, second, four permanent magnet segmentations are magnetized vertically, and magnetizing direction is contrary.
In present embodiment, every block permanent magnet adopts adjacent two segmentations to differ the axis of 90 ° and the circumferential mode of magnetizing of intersecting.
Embodiment two: present embodiment is described below in conjunction with Fig. 1 to Fig. 5, present embodiment is described further execution mode one, each air gap side surface of stator 2 is evenly provided with multiple slot for winding, multiple slot for winding is uniformly distributed along the circumferencial direction of stator sidewall, the slot for winding one_to_one corresponding on stator 2 two air gap side surfaces; Each is to arranging an annular stator winding in slot for winding;
The number of pole-pairs P of magnet ring 3-2
1with annular stator winding number of pole-pairs P
2sum is adjustable magnetic block number N in adjustable magnetic ring 4
s.
Operation principle: by powering up the air-gap harmonic magnetic field that potential source gained arrives to stator armature winding, and the air-gap harmonic magnetic field that permanent magnet produces carries out analytical analysis, obtain armature winding number of pole-pairs in compound machine, relation between adjustable magnetic block number and permanent magnet pole logarithm:
P
1＝mP
2+kN
s；
In formula, m=1,3,5 ..., ∞; K=0, ± 1, ± 2 ..., ± ∞;
Work as m=1, during k=-1, the harmonic field obtained after being modulated by adjustable magnetic ring is the strongest.The harmonic field of the main transmitting torque in adjustable magnetic ring both sides, has identical angular rate, can obtain this compound machine speed governing when gearratio G
r:
G
r＝mP
2+kN
s/mP
2，
The quantitative proportion of such selection permanent magnet and adjustable magnetic ring, can meet the stable demand of torque, otherwise cannot transmitting torque reposefully.
Select annular stator winding number of pole-pairs P
2=3, adjustable magnetic block number N
s=25, so just can obtain the number of pole-pairs P of rotor
1=22, realizing speed ratio is 22/3.
Embodiment three: present embodiment is described further execution mode one or two, the material of rotating shaft 1 is aluminium.
Embodiment four: present embodiment is described further execution mode one, two or three, stator 2, rotor disk 3-1 and adjustable magnetic ring 4 are made up of silicon steel sheet respectively.
Embodiment five: present embodiment is described further execution mode one, two, three or four, the material of permanent magnet is neodymium iron boron.
Claims (2)
1. the axial magnetic field modulation system compound machine of a magnetism-regulating structure and magnetizing direction improvement, it comprises rotating shaft (1), stator (2), two rotors and two adjustable magnetic rings (4), stator (2) is fixed in rotating shaft (1), two rotors are that specular is arranged at stator (2) both sides, be air gap between each rotor and stator (2), each rotor and rotating shaft (1) are rotationally connected by bearing, it is characterized in that
Each air gap side surface of stator (2) is adhesively fixed an adjustable magnetic ring (4), and adjustable magnetic ring (4) is fixedly connected with rotating shaft (1); Adjustable magnetic ring (4) is made up of the adjustable magnetic block of along the circumferential direction dispersed arrangement;
Rotor comprises rotor disk (3-1) and magnet ring (3-2), magnet ring (3-2) is bonded on the air gap side surface of rotor disk (3-1), magnet ring (3-2) is made up of the polylith permanent magnet of along the circumferential direction evenly arrangement, and every block permanent magnet is made up of the permanent magnet segmentation being along the circumferential direction evenly cut into four sections; Along clockwise direction, in every block permanent magnet, first and third permanent magnet segmentation is along the circumferential direction magnetized, and magnetizing direction is contrary, and in every block permanent magnet, second, four permanent magnet segmentations are magnetized vertically, and magnetizing direction is contrary.
2. the axial magnetic field modulation system compound machine of magnetism-regulating structure according to claim 1 and magnetizing direction improvement, it is characterized in that, each air gap side surface of stator (2) is evenly provided with multiple slot for winding, multiple slot for winding is uniformly distributed along the circumferencial direction of stator sidewall, the slot for winding one_to_one corresponding on stator (2) two air gap side surfaces; Each is to arranging an annular stator winding in slot for winding;
The number of pole-pairs P of magnet ring (3-2)
1with annular stator winding number of pole-pairs P
2sum is adjustable magnetic block number N in adjustable magnetic ring (4)
s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053675.2U CN204334260U (en) | 2015-01-26 | 2015-01-26 | The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053675.2U CN204334260U (en) | 2015-01-26 | 2015-01-26 | The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve |
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| Publication Number | Publication Date |
|---|---|
| CN204334260U true CN204334260U (en) | 2015-05-13 |
Family
ID=53170571
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520053675.2U Withdrawn - After Issue CN204334260U (en) | 2015-01-26 | 2015-01-26 | The axial magnetic field modulation system compound machine that magnetism-regulating structure and magnetizing direction improve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578633A (en) * | 2015-01-26 | 2015-04-29 | 哈尔滨理工大学 | Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction |
| CN105490481A (en) * | 2015-12-25 | 2016-04-13 | 华中科技大学 | Multi-disc and multi-gap axial flux magnetic field modulation permanent-magnet motor with high torque density |
| CN111541319A (en) * | 2020-04-30 | 2020-08-14 | 南京理工大学 | Axial magnetic field hybrid excitation outer rotor hub direct-drive motor |
-
2015
- 2015-01-26 CN CN201520053675.2U patent/CN204334260U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578633A (en) * | 2015-01-26 | 2015-04-29 | 哈尔滨理工大学 | Axial magnetic field modulation type composite motor with improved flux modulation structure and improved magnetizing direction |
| CN105490481A (en) * | 2015-12-25 | 2016-04-13 | 华中科技大学 | Multi-disc and multi-gap axial flux magnetic field modulation permanent-magnet motor with high torque density |
| CN105490481B (en) * | 2015-12-25 | 2018-10-26 | 华中科技大学 | A kind of high torque density polydisc-more air gaps axial direction flux field modulation magneto |
| CN111541319A (en) * | 2020-04-30 | 2020-08-14 | 南京理工大学 | Axial magnetic field hybrid excitation outer rotor hub direct-drive motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150513 Effective date of abandoning: 20161026 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |