CN109672314A - A kind of axial magnetic field stator modules monophase machine - Google Patents
A kind of axial magnetic field stator modules monophase machine Download PDFInfo
- Publication number
- CN109672314A CN109672314A CN201910129174.0A CN201910129174A CN109672314A CN 109672314 A CN109672314 A CN 109672314A CN 201910129174 A CN201910129174 A CN 201910129174A CN 109672314 A CN109672314 A CN 109672314A
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- magnetic field
- axial magnetic
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 23
- 238000004080 punching Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 22
- 241000239290 Araneae Species 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
本发明公开了一种轴向磁场定子模块化单相电机，包括分段定子、转子和集中绕组；所述定子包括两个外侧定子盘，定子盘包括m个“工”形定子铁心模块、m个三棱柱形定子铁心模块以及两个定子盘支架；所述转子位于两个定子盘中间，包括梯形永磁体和转子支架，梯形永磁体轴向充磁，直接固定在转子支架上；所述集中绕组直接绕在定子模块的中柱上。本发明将定子铁心分成2m个定子铁心模块，优化定子铁心形状，转子采用无铁心结构，在保证输出电能质量的同时，降低了工艺要求，减小成本，提高功率密度，减小定位转矩，降低转子转动惯量。
The invention discloses an axial magnetic field stator modular single-phase motor, comprising a segmented stator, a rotor and a concentrated winding; the stator includes two outer stator disks, and the stator disk includes m "I"-shaped stator core modules, m a triangular prism-shaped stator core module and two stator disk supports; the rotor is located in the middle of the two stator disks, including a trapezoidal permanent magnet and a rotor support, and the trapezoidal permanent magnet is axially magnetized and directly fixed on the rotor support; the centralized The windings are wound directly on the central column of the stator module. The invention divides the stator iron core into 2m stator iron core modules, optimizes the shape of the stator iron core, and the rotor adopts a coreless structure. While ensuring the quality of output power, the process requirements are reduced, the cost is reduced, the power density is improved, and the positioning torque is reduced. Reduce rotor moment of inertia.
Description
Technical field
The invention belongs to the technical field of Design of PM Motor more particularly to a kind of axial magnetic field stator modules single-phase electricities
Machine.
Background technique
Motor in axial magnetic field is that a kind of air gap is plane, and air-gap flux direction is axial motor, also referred to as " disc type " electricity
Machine.Axial magnetic field permanent magnet motor is because of its high power density, and high torque density and shorter axial length are by the extensive of people
Concern, is applied in fields such as electric car driving, wind-power electricity generation, flywheel energy storages.Common axial magnetic field permanent magnet motor
Topology is divided into single rotor list stator structure, birotor intermediate stator structure, bimorph transducer center roller structure and multi-disc type structure.
There is the magnetic conductive iron medium of magnetic saturation characteristic to remove the stator of motor or rotor, is fabricated to coreless
Machine can reduce core loss, improve overload capacity, improve electric efficiency.
Location torque is to cause air gap magnetic coenergy to change by relative displacement between rotor permanent magnet and stator tooth, and magnetic is total
Torque, referred to as location torque can be generated to unique local derviation.
Summary of the invention
Goal of the invention: it in view of the above problems, the present invention proposes a kind of axial magnetic field stator modules monophase machine, improves and passes
Power density, the efficiency of system single-phase generator, and reduce location torque.
Technical solution: to achieve the purpose of the present invention, the technical scheme adopted by the invention is that: a kind of axial magnetic field stator
Modularization monophase machine, including sectionalized stator, rotor and concentratred winding；The stator is located at the rotor two sides, and spacing phase
Deng rotor disk is coaxially connected；The stator includes two stator discs, and the stator disc includes m I-shaped stator core
Module, m triangular prism shaped stator core modules and stator disc carrier, circumferentially m I-shaped stator core module and m a three
Prism stator core module is alternately closely aligned, and forms m equivalent stator slots；The rotor is located among two stator discs, packet
Permanent magnet and rotor field spider are included, permanent magnet is directly anchored on rotor field spider；The concentratred winding is directly wound on the center pillar of stator
On.
Further, there is card slot on the inside of the stator disc carrier, for fixing 2m stator modules.
Further, the I-shaped iron core stator core module number m is even number, and I-shaped iron core is close to air gap
The spacing that the length of side is less than far from air gap side, close to air gap side adjacent stator core is more than or equal to gas length.
Further, the I-shaped iron core is more than or equal to permanent magnetism body thickness close to air gap side thickness.
Further, the I-shaped stator core module is radially overrided to form by I-shaped punching, triangular prism
Shape stator core module is overrided to form by triangle punching along axial direction.
Further, the permanent magnet center is provided with circular through hole, is fixed by screw and rotor field spider.
Further, the permanent magnet is isosceles trapezoid, and trapezoidal upper bottom edge is close to motor internal diameter, and bottom is close to motor
Outer diameter, upper bottom are aligned with I-shaped iron core bottom.
Further, the stator support and rotor field spider are all non-magnetic aluminum alloy materials, the permanent magnet material
For the neodymium iron boron with high remanent magnetism.
Further, the concentratred winding is fan ring, pours fixation by epoxy resin, fans the radial direction and motor half of ring
Diameter direction is overlapped.
The utility model has the advantages that axial magnetic field stator modules monophase machine of the present invention uses axial magnetic circuit structure, it is close to increase power
Degree reduces motor volume；Stator core uses the structural segmented modularization of I-shaped, reduces equivalent width of rebate, reduces positioning
Torque, while improving fault-tolerant ability；Rotor iron-free core material reduces core loss, reduces rotor moment of inertia, improves motor effect
Rate；Improve motor current overload ability.
Detailed description of the invention
Fig. 1 is axial magnetic field stator modules single-phase generator three dimensional structure diagram of the present invention；
Fig. 2 is axial magnetic field stator modules single-phase generator rotor structure top view of the present invention；
Fig. 3 is axial magnetic field stator modules single-phase generator stator structure top view of the present invention；
Fig. 4 is axial magnetic field stator modules single-phase generator stator structure bottom view of the present invention.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawings and examples.
The present invention is by taking axial magnetic field stator modules single-phase generator as an example, as shown in Figs 1-4, by non iron-core rotor structure
Applied in bimorph transducer center roller axial magnetic field single-phase generator structure, and by stator core module, including sectionalized stator
1, rotor 2 and concentratred winding 3, stator 1 is located at 1 two sides of rotor, and spacing is equal, and rotor disk is coaxially connected.
Stator 1 includes two stator discs, and stator disc includes that m I-shaped stator core module 1-1, m is triangular prism shaped
Stator core module 1-2 and two stator disc carriers, circumferentially m I-shaped stator core module and m triangular prism are fixed
Sub- iron core module is alternately closely aligned, and forms m equivalent stator slots.
I-shaped iron core stator core module number m is even number, and length of the I-shaped iron core close to air gap side is less than
Far from air gap side, that is, guarantee that close air gap side adjacent stator core is at regular intervals, which should be greater than being equal to gas length.One side
Face, the spacing and motor tooth top Leakage Reactance have direct relation, the stator leakage reactance of motor are further influenced, to influence generator
Output external characteristic, lead to common voltage regulation Δ U=(E0-UN)/UN× 100% measures the external characteristics of generator.Another party
Face provides larger leakage magnetic circuit to permanent magnet when the spacing is too small.In addition, the spacing also will affect the location torque of motor, from
Reducing spacing when location torque angle considers should minimize.Therefore the parameter should be in motor output external characteristic, permanent magnetism body drain
Comprehensively consider between magnetic and location torque, in general, the spacing, which should be slightly larger than, is equal to gas length.
I-shaped iron core should be greater than being equal to permanent magnetism body thickness close to air gap side thickness, guarantee not send out close to air gap side iron core
Raw saturation guarantees that Severe distortion does not occur for unloaded counter potential waveform.There is card slot on the inside of stator disc carrier, for fixing 2m stator
Module.
Rotor 2 is located among two stator discs, including permanent magnet 2-1 and rotor field spider 2-2, the center permanent magnet 2-1 are provided with
Circular through hole is fixed by screw and rotor field spider 2-2.Each permanent magnet 2-1 shape is isosceles trapezoid, and trapezoidal upper bottom edge is close
Motor internal diameter, bottom are aligned close to motor outer diameter, upper bottom with I-shaped iron core bottom.
The present invention is described in detail by taking m=8 as an example, i.e., stator is divided into 8 I-shaped iron core modules and 8 triangular prisms
Shape iron core module.Each I-shaped stator core module 1-1 is radially overrided to form by I-shaped punching, triangular prism shaped stator
Iron core module 1-2 is overrided to form by triangle punching along axial direction.The shape of each concentratred winding 3 is fan ring, fans the radial direction of ring
It is overlapped with motor radial direction.Stator support and rotor field spider 2-2 are the non-magnet material with support strength, are non-magnetic
Aluminum alloy materials, permanent magnet material be the neodymium iron boron with high remanent magnetism.
The quantity k of concentratred winding meets: k=m or k=m/2.It is Double Layer Winding in each equivalent stator slot as k=m；
It is Single-layer Windings in each equivalent stator slot as k=m/2.Concentratred winding pours fixation by epoxy resin.According to motor electricity
Current voltage grade needs to select the connection type of each concentratred winding.It with m=8, is illustrated for k=4, each equivalent stator
It is Single-layer Windings in slot, upper and lower stator disc has 8 concentratred windings altogether, and 8 concentratred windings of double sided stator are all in parallel.
Rotor permanent magnet magnetic field enters stator core by air gap from the pole N, by triangular prism shaped iron core and adjacent
I-shaped iron core is then passed through air gap into the adjacent pole S permanent magnet, and other side air gap similarly, ultimately forms linkage winding
Closed magnetic circuit.When operation, rotor is dragged by prime mover to be rotated, and winding is in alternating magnetic field, and each concentratred winding is in same a period of time
Induced electromotive force size direction is all the same in quarter, is connected in series and parallel as needed between winding, by lead-out wire to outside
Electrical appliance power supply.
To guarantee stock utilization, the stator core axial length is short as far as possible, therefore the shape of equivalent stator slot is more flat
It is flat.Concentratred winding 3 is flat as far as possible, it is ensured that certain copper factor.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129174.0A CN109672314B (en) | 2019-02-21 | 2019-02-21 | Axial magnetic field stator modularization single-phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129174.0A CN109672314B (en) | 2019-02-21 | 2019-02-21 | Axial magnetic field stator modularization single-phase motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109672314A true CN109672314A (en) | 2019-04-23 |
| CN109672314B CN109672314B (en) | 2021-04-30 |
Family
ID=66151711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910129174.0A Expired - Fee Related CN109672314B (en) | 2019-02-21 | 2019-02-21 | Axial magnetic field stator modularization single-phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109672314B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564442A (en) * | 2020-12-01 | 2021-03-26 | 东南大学 | Axial magnetic field birotor permanent magnet vernier motor |
| WO2024222156A1 (en) * | 2023-04-26 | 2024-10-31 | 无锡星驱动力科技有限公司 | Axial field motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178667A (en) * | 2013-03-06 | 2013-06-26 | 华中科技大学 | Axial Field Dual Stator Vernier Motor |
| CN109193978A (en) * | 2018-09-07 | 2019-01-11 | 华中科技大学 | A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor |
| US10541591B2 (en) * | 2017-01-31 | 2020-01-21 | Regal Beloit Australia Pty, Ltd. | Composite stator for axial flux electric machines and methods of assembling the same |
-
2019
- 2019-02-21 CN CN201910129174.0A patent/CN109672314B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178667A (en) * | 2013-03-06 | 2013-06-26 | 华中科技大学 | Axial Field Dual Stator Vernier Motor |
| US10541591B2 (en) * | 2017-01-31 | 2020-01-21 | Regal Beloit Australia Pty, Ltd. | Composite stator for axial flux electric machines and methods of assembling the same |
| CN109193978A (en) * | 2018-09-07 | 2019-01-11 | 华中科技大学 | A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564442A (en) * | 2020-12-01 | 2021-03-26 | 东南大学 | Axial magnetic field birotor permanent magnet vernier motor |
| WO2024222156A1 (en) * | 2023-04-26 | 2024-10-31 | 无锡星驱动力科技有限公司 | Axial field motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109672314B (en) | 2021-04-30 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201201 Address after: 213300 room 428, building a, 218 Hongkou Road, Kunlun Street, Liyang City, Changzhou City, Jiangsu Province (in Zhongguancun Science and Technology Industrial Park, Jiangsu Province) Applicant after: Liyang Research Institute of Southeast University Applicant after: SOUTHEAST University Address before: 210096 No. 2, Southeast University Road, Jiangning District, Jiangsu, Nanjing Applicant before: SOUTHEAST University |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 |