CN206259765U - A kind of high speed non-stator iron core magneto of end portion leakage field - Google Patents
A kind of high speed non-stator iron core magneto of end portion leakage field Download PDFInfo
- Publication number
- CN206259765U CN206259765U CN201621199626.0U CN201621199626U CN206259765U CN 206259765 U CN206259765 U CN 206259765U CN 201621199626 U CN201621199626 U CN 201621199626U CN 206259765 U CN206259765 U CN 206259765U
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- iron core
- permanent magnet
- outer rotor
- unshakable
- determination
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses the high speed non-stator iron core magneto of end portion leakage field, including rotating shaft, outer rotor iron core, permanent magnet, drag cup stator, internal rotor iron core and the permanent magnet end pressure ring being made up of magnetism-isolating loop and magnetic guiding loop.Outer rotor is unshakable in one's determination and internal rotor is unshakable in one's determination in rotating shaft, permanent magnet is arranged on outer rotor iron core internal side diameter, outer rotor is unshakable in one's determination, permanent magnet and interior biography son iron core are with rotating shaft synchronous rotary, the permanent magnet end pressure ring being made up of magnetism-isolating loop and magnetic guiding loop is arranged on outer rotor end outside with the annular gap compressed between outer rotor iron core and permanent magnet, drag cup stator insertion inner and outer Rotator and is fixed on casing.The magnetic flux that permanent magnet is produced constitutes closed magnetic circuit by outer rotor iron core, drag cup stator, internal rotor iron core and the air gap between them.Permanent magnet brow leakage is through air gap, magnetic guiding loop, outer rotor is unshakable in one's determination returns to permanent magnet, it is to avoid to external diffusion, magnetism-isolating loop then prevents end magnetic field short circuit to leakage field.
Description
Technical field
The utility model is related to a kind of magneto, and more particularly to a kind of high speed non-stator iron core of end portion leakage field is forever
Magneto, can be applied to the occasions such as high speed, low-power consumption.
Background technology
In traditional magneto body to contain stator core, in motor rotation, the magnetic field that permanent magnet is produced can be more
Magnetic hystersis loss and eddy-current loss are produced in stator core, and these are lost with the increase of rotor rotation frequency abruptly increase.When
When this magneto is applied to the occasion of rotation at a high speed, the loss of electric machine can be than larger, therefore efficiency is very low.In addition, traditional
Magneto, due to the presence of stator teeth groove, when rotor rotates at a high speed, can produce cogging torque and slot ripples, so as to can make
Obtain torque and produce certain pulsation, cause a part of loss.Although common high speed non-stator iron core magneto (such as drag cup
Motor) problem above can be solved.But this common air gap of class motor is than larger, brow leakage is serious, and high-speed electric expreess locomotive
Compact conformation, can produce serious eddy-current loss in peripheral structural member, therefore it is also most important to reduce the brow leakage of motor.
So, the leakage field that rotor is produced when high speed rotates on end how is reduced, it is extension non-stator iron core magneto application
The key issue of occasion.
The content of the invention
The purpose of this utility model is the defect for overcoming prior art, there is provided a kind of lightweight, low in energy consumption and easy processing
End portion leakage field end portion leakage field high speed non-stator iron core magneto.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of high speed non-stator iron core magneto of end portion leakage field of the present utility model, including peace is rotated by bearing
Rotating shaft on casing, described rotating shaft includes cannulated sleeve, d-axis is fixed with the middle of described cannulated sleeve, described
D-axis on to be fixed with internal rotor unshakable in one's determination, it is unshakable in one's determination to be fixed with outer rotor on described cannulated sleeve inwall, at described outer turn
Permanent magnet is fixed with sub- iron core inwall, hollow-cup motor stator is installed simultaneously between described permanent magnet and internal rotor iron core
And described hollow-cup motor stator is fixed on casing, and magnetism-isolating loop is fixed near the end of casing in described permanent magnet,
In described outer rotor iron core magnetic guiding loop is fixed near the end of casing and magnetism-isolating loop end.
Compared with prior art, the utility model has the advantages that：
Compared with conventional permanent magnet motor, this structure does not have a teeth groove, therefore can eliminate the slot effect of conventional permanent magnet motor,
So that rotor torque is steady, because the armature-reaction of this structure magneto is weak, be conducive to without the various control methods such as sensor
Realization.Compared with traditional non-gullet motor, stator core is eliminated in this structure so that drag cup winding is independently of motor iron
The heart, and rotor core is divided into outer rotor iron core and internal rotor iron core two parts, no matter so that rotor is with great rotating speed
Rotation fundamentally solves stator core loss problem all without core loss is produced on stator, and outer rotor end adds
Upper magnetism-isolating loop and magnetic guiding loop, significantly reduce the eddy-current loss that brow leakage is produced in hardware is fixed on periphery.
Brief description of the drawings
Fig. 1 is the structural representation of the high speed non-stator iron core magneto of end portion leakage field of the present utility model.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
For content of the present utility model, feature and effect can be further appreciated that, below in conjunction with implementation method and coordinate accompanying drawing
It is explained in detail.
A kind of high speed non-stator iron core magneto of end portion leakage field of the present utility model as shown in drawings, including it is logical
The rotating shaft 108 that bearing is rotatably installed on casing 101 is crossed, described rotating shaft 108 includes cannulated sleeve, in described cannulated sleeve
Centre is fixed with d-axis, and internal rotor iron core 107 is fixed with described d-axis, is fixed with described cannulated sleeve inwall
Outer rotor iron core 105, is fixed with permanent magnet 106, in the described He of permanent magnet 106 on described outer rotor 105 inwalls of iron core
Hollow-cup motor stator 102 is installed between internal rotor iron core 107 and described hollow-cup motor stator 105 is fixed on casing
On, described hollow-cup motor stator 102 is made up of winding and skeleton.Consolidate near the end of casing in described permanent magnet 106
Surely there is magnetism-isolating loop 103, magnetic conduction is fixed near the end of casing and the end of magnetism-isolating loop 106 in described outer rotor iron core 105
Ring 104.
This structure China and foreign countries rotor core 105 and internal rotor iron core 107 rotate with rotating shaft 108, the magnetic flux that permanent magnet 106 is produced
The magnetic circuit of closure, the end of permanent magnet 106 are constituted by outer rotor unshakable in one's determination 105 and internal rotor unshakable in one's determination 107 and the air gap between them
Portion's leakage field returns to permanent magnet 106 through air gap, magnetic guiding loop 104, outer rotor unshakable in one's determination 105, it is to avoid leakage field is to external diffusion, magnetism-isolating loop
103 prevent end magnetic field short circuit.
Described outer rotor unshakable in one's determination 105 and internal rotor unshakable in one's determination 107 are using the good electrician's thin slice steel plate punched of magnetic property
Repeatedly system is formed, and rotating shaft 108 can be made of aluminium, titanium alloy of non-magnet material etc..Permanent magnet 106 can be good using magnetic property
Rare-earth permanent magnet or ferrite permanent magnet, permanent magnet are parallel magnetization.
Claims (1)
1. the high speed non-stator iron core magneto of a kind of end portion leakage field, it is characterised in that:Installed including being rotated by bearing
Rotating shaft on casing, described rotating shaft includes cannulated sleeve, d-axis is fixed with the middle of described cannulated sleeve, described
Internal rotor is fixed with d-axis unshakable in one's determination, outer rotor iron core is fixed with described cannulated sleeve inwall, in described outer rotor
Be fixed with permanent magnet on inwall unshakable in one's determination, described permanent magnet and internal rotor iron core between be provided with hollow-cup motor stator and
Described hollow-cup motor stator is fixed on casing, and magnetism-isolating loop is fixed near the end of casing in described permanent magnet,
Described outer rotor iron core is fixed with magnetic guiding loop near the end of casing and magnetism-isolating loop end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199626.0U CN206259765U (en) | 2016-11-07 | 2016-11-07 | A kind of high speed non-stator iron core magneto of end portion leakage field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199626.0U CN206259765U (en) | 2016-11-07 | 2016-11-07 | A kind of high speed non-stator iron core magneto of end portion leakage field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206259765U true CN206259765U (en) | 2017-06-16 |
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ID=59024891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621199626.0U Active CN206259765U (en) | 2016-11-07 | 2016-11-07 | A kind of high speed non-stator iron core magneto of end portion leakage field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206259765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964308A (en) * | 2018-06-21 | 2018-12-07 | 东南大学 | A kind of large inertia external rotor permanent magnetic brushless DC electric machine |
| CN114744849A (en) * | 2022-03-10 | 2022-07-12 | 贵州航天林泉电机有限公司 | Electromagnetic damper |
-
2016
- 2016-11-07 CN CN201621199626.0U patent/CN206259765U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964308A (en) * | 2018-06-21 | 2018-12-07 | 东南大学 | A kind of large inertia external rotor permanent magnetic brushless DC electric machine |
| CN114744849A (en) * | 2022-03-10 | 2022-07-12 | 贵州航天林泉电机有限公司 | Electromagnetic damper |
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