CN205583965U - Mixed excitation axial magnetic flow modulation system composite construction motor - Google Patents
Mixed excitation axial magnetic flow modulation system composite construction motor Download PDFInfo
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- CN205583965U CN205583965U CN201620435401.4U CN201620435401U CN205583965U CN 205583965 U CN205583965 U CN 205583965U CN 201620435401 U CN201620435401 U CN 201620435401U CN 205583965 U CN205583965 U CN 205583965U
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- stator
- external stator
- adjustable magnetic
- excitation
- adjustment ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
Mixed excitation axial magnetic flow modulation system composite construction motor relates to mixed excitation compound machine field, and the purpose is in order to solve the current little problem of mixed excitation motor output torque. Permanent magnetism external stator, magnet adjustment ring, internal stator, no. Two magnet adjustment ring and electric excitation external stator are passed in proper order in the pivot, and permanent magnetism external stator, internal stator and electric excitation external stator all rotate through bearing and pivot and is connected, and magnet adjustment ring rotor and pivot fixed connection all leave the clearance between permanent magnetism external stator and the magnet adjustment ring, between magnet adjustment ring and the internal stator, between internal stator and no. Two magnet adjustment ring and between no. Two magnet adjustment ring and the electric excitation external stator, the permanent magnet adopts 90 modes of magnetizing on the halbach structure to magnetize, a magnet adjustment ring and no. Two magnet adjustment ring are by transferring magnet piece and the non - magnetic materials of epoxy to constitute along the circumferencial direction interval arrangement. The utility model discloses can realize the big torque output of low -speed, widen motor speed governing scope, be applicable to electric automobile.
Description
Technical field
This utility model relates to composite excitation compound machine field.
Background technology
In recent years owing to having high residual flux density, high-coercive force, the development of the rare earth permanent-magnetic material of the feature such as high energy product, make
Magneto compared with traditional electro-magnetic motor, in configuration aspects, there is volume little, simple in construction, easy to maintenance etc. excellent
Point, has efficiency at aspect of performance high, and power factor is high, the advantages such as power density is big, but magneto is single owing to using
One permanent magnet excitation, flux control is relatively difficult.Traditional electro-magnetic motor can be by regulation direct current or AC excitation electric current
Easily air-gap field is adjusted, but its structure is complicated, torque is little, power factor is low in output.
The magnetic field joint effect motor that the magnetic field being mainly characterized by permanent magnet generation of mixed excitation electric machine and electrical excitation winding produce
Air-gap field and utilize exciting current adjustable advantage that air gap flux density size is regulated flexibly.Mixed excitation electric machine
Overcome the shortcoming that Magnetic Field for Permanent Magnet Electrical Machines regulation is difficult and electro-magnetic motor power factor is low so that motor has volume simultaneously
The advantages such as little, compact conformation, power factor height, flux control are convenient, but still there is the problem that output torque is little.
Utility model content
The purpose of this utility model is the problem little in order to solve the output torque of existing mixed excitation electric machine, it is provided that a kind of mixing
Excitation axial magnetic flux modulation system composite structure motor.
Composite excitation axial magnetic flux modulation system composite structure motor described in the utility model include rotating shaft 1, permanent magnetism external stator,
Adjustable magnetic rotor 4, inner stator, electrical excitation external stator, 2, No. two bearings 7 of a bearing and No. three bearings 8；
Described adjustable magnetic rotor 4 includes an adjustable magnetic ring and No. two adjustable magnetic rings；
Described rotating shaft 1 sequentially passes through permanent magnetism external stator, adjustable magnetic ring, inner stator, No. two adjustable magnetic rings and electrical excitation external stator,
And permanent magnetism external stator is rotationally connected with rotating shaft 1 by a bearing 2, inner stator is rotated even with rotating shaft 1 by No. two bearings 7
Connecing, electrical excitation external stator is rotationally connected with rotating shaft 1 by No. three bearings 8, and adjustable magnetic rotor 4 is fixing with rotating shaft 1 to be connected,
Between permanent magnetism external stator and an adjustable magnetic ring, between an adjustable magnetic ring and inner stator, between inner stator and No. two adjustable magnetic rings, with
And all leave gap between No. two adjustable magnetic rings and electrical excitation external stator；
Described permanent magnetism external stator includes the permanent magnetism external stator iron core 3-1 and permanent magnet 3-2 being coaxially disposed, and permanent magnet 3-2 is solid
It is scheduled on permanent magnetism external stator iron core 3-1；
Inner stator includes that internal stator iron core 5-1 and annular armature winding 5-2, annular armature winding 5-2 are wrapped in inner stator ferrum
On heart 5-1；
Electrical excitation external stator includes that electrical excitation external stator iron core 6-1 and DC excitation winding 6-2, DC excitation winding 6-2 twine
It is wound on the stator tooth of electrical excitation external stator iron core 6-1；On adjacent stators tooth, the sense of current of magnet exciting coil is contrary；
Permanent magnet 3-2 uses 90 ° of modes of magnetizing of Halbach structure to magnetize；
A number adjustable magnetic ring and No. two adjustable magnetic rings by adjustable magnetic iron block 4-1 and epoxy resin non-magnet material 4-2 along the circumferential direction between
Every rearranging.
Beneficial effect: composite excitation axial magnetic flux modulation system composite structure motor described in the utility model combines disc type electricity
Machine, Flux modulation formula compound machine and the feature of mixed excitation electric machine, use tray type structure, and motor volume is little, installation side
Just.Utilize the magnetic gear principle of Flux modulation formula compound machine, air-gap field inside and outside motor is modulated, obtains low speed big
Torque-output characteristics, it is possible to meet electric automobile etc. and directly drive the requirement of occasion.Electrical excitation external stator and permanent magnetism external stator divide
Be not positioned at inner stator both sides, magnetic circuit is independent of each other, it is to avoid the risk of permanent magnet demagnetization, and permanent magnet uses Halbach
Mode arranges, and permanent magnet utilization rate is high.Electrical excitation winding is wrapped on external stator tooth, can realize non-brushing well.Logical
Cross and change the size and Orientation of electric current, the size of flexible electrical excitation side air-gap field in Exciting Windings for Transverse Differential Protection, thus widen motor
Speed adjustable range, the requirement run in meeting electric automobile width velocity interval, and when armature winding is short-circuited fault, logical
Overregulate exciting current to offset the magnetic field that permanent magnet produces, it is achieved efficient demagnetization during armature short circuit in winding fault.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite excitation axial magnetic flux modulation system composite structure motor described in the utility model；
Fig. 2 is the structural representation that electrical excitation external stator is unshakable in one's determination；
Fig. 3 is the structural representation of permanent magnetism external stator；
Fig. 4 is permanent magnet arrangement and magnetizing direction schematic diagram；
Fig. 5 is the structural representation of adjustable magnetic rotor.
Detailed description of the invention
Detailed description of the invention one: combining Fig. 1 to Fig. 5 and present embodiment is described, the composite excitation described in present embodiment is axial
It is fixed that Flux modulation formula composite structure motor includes outside rotating shaft 1, permanent magnetism external stator, adjustable magnetic rotor 4, inner stator, electrical excitation
Son, 2, No. two bearings 7 of a bearing and No. three bearings 8；
Described adjustable magnetic rotor 4 includes an adjustable magnetic ring and No. two adjustable magnetic rings；
Described rotating shaft 1 sequentially passes through permanent magnetism external stator, adjustable magnetic ring, inner stator, No. two adjustable magnetic rings and electrical excitation external stator,
And permanent magnetism external stator is rotationally connected with rotating shaft 1 by a bearing 2, inner stator is rotated even with rotating shaft 1 by No. two bearings 7
Connecing, electrical excitation external stator is rotationally connected with rotating shaft 1 by No. three bearings 8, and adjustable magnetic rotor 4 is fixing with rotating shaft 1 to be connected,
Between permanent magnetism external stator and an adjustable magnetic ring, between an adjustable magnetic ring and inner stator, between inner stator and No. two adjustable magnetic rings, with
And all leave gap between No. two adjustable magnetic rings and electrical excitation external stator；
Described permanent magnetism external stator includes the permanent magnetism external stator iron core 3-1 and permanent magnet 3-2 being coaxially disposed, and permanent magnet 3-2 is solid
It is scheduled in permanent magnetism external iron core 3-1；
Inner stator includes that internal stator iron core 5-1 and annular armature winding 5-2, annular armature winding 5-2 are wrapped in inner stator ferrum
On heart 5-1；
Electrical excitation external stator includes that electrical excitation external stator iron core 6-1 and DC excitation winding 6-2, DC excitation winding 6-2 twine
It is wound on the stator tooth of electrical excitation external stator iron core 6-1；The quantity of stator tooth is 38, and each stator tooth is all wound around one
Individual magnet exciting coil, 38 magnet exciting coils are sequentially connected in series, and on adjacent stators tooth, the sense of current of magnet exciting coil is contrary, are formed
The structure of " N-S-N-S-N...... "；
Permanent magnet 3-2 uses 90 ° of modes of magnetizing of Halbach structure to magnetize；
A number adjustable magnetic ring and No. two adjustable magnetic rings by adjustable magnetic iron block 4-1 and epoxy resin non-magnet material 4-2 along the circumferential direction between
Every rearranging.
In present embodiment, the yoke of the electrical excitation external stator iron core 6-1 of permanent magnetism external stator iron core 3-1 and electrical excitation external stator 6
Portion is placed directly against on motor case.As it is shown in figure 1, in the axial direction, permanent magnetism external stator and electrical excitation external stator symmetry row
It is listed in inner stator both sides.As shown in Figure 4, permanent magnet 3-2 is along the circumferential direction arranged by multiple permanent magnet blocks and forms, every four
Adjacent permanent magnet blocks partners pole, and first and third piece of permanent magnet uses circumferencial direction to magnetize, and magnetizing direction is contrary,
The second, four pieces permanent magnets use axial direction to magnetize, and magnetizing direction is contrary.Two adjustable magnetic rings of adjustable magnetic rotor 4 lead to respectively
Cross air gap L2 and L3 to separate with inner stator, separated with permanent magnetism external stator and electrical excitation external stator by L1 and L4 respectively.
Electrical excitation winding 6-2 is wrapped on electrical excitation external stator iron core, connects in some way, and applies unidirectional current
Carrying out excitation so that it is follow the right-hand rule, excitation direction is corresponding with the magnetizing direction of permanent magnet permanent magnet, by changing institute
Alive size and Orientation, carrys out the size of flexible electrical excitation side air-gap field, and then widens the speed adjustable range of motor.
It addition, when armature winding is short-circuited fault, offset, by regulation exciting current, the magnetic field that permanent magnet produces, it is achieved
Efficient demagnetization during armature short circuit in winding fault.
Motor described in present embodiment is separate due to the magnetic circuit of permanent magnet and electrical excitation part, and regulation exciting current is not
Can cause the irreversible demagnetization of permanent magnet, motor reliability is high, and electrical excitation efficiency is high.
Adjustable magnetic rotor 4 have employed the operation principle of New Magnetic Field Controlled gear drive, applies in motor, has torque density
The features such as high, operational efficiency moment high, untouchable transmission and overload self-shield, it is possible to replace mechanical gear in cleaning, low
Running in the environment such as gentle high-altitude, structure is easier, makes the significantly more embodiment of function of low speed high torque simultaneously.
Present embodiment is carried out integrating the Flux modulation formula compound machine obtained by magnetic gear and permagnetic synchronous motor and has low speed
The performance of big torque output, relatively radially for Flux modulation formula compound machine, axial magnetic flux modulation system compound machine volume is little,
The output torque of easy for installation, low speed is bigger.
Detailed description of the invention two: present embodiment is to the composite excitation axial magnetic flux modulation system composite junction described in embodiment one
The further restriction of structure motor, in present embodiment, along the circumferential direction has groove, annular armature outside internal stator iron core 5-1
Winding 5-2 is embedded in groove.
Detailed description of the invention three: present embodiment is to the composite excitation axial magnetic flux modulation system composite junction described in embodiment one
The further restriction of structure motor, in present embodiment, the number of pole-pairs of inner stator is P1, the number of pole-pairs of permanent magnetism external stator and electricity
The number of pole-pairs of excitation external stator is P2, in adjustable magnetic rotor 4, the quantity of adjustable magnetic iron block 4-1 is Ns, P1+P2=Ns.
By the air-gap harmonic magnetic field obtained by the annular armature winding 5-2 applying voltage to inner stator and permanent magnetism external stator
On permanent magnet 3-2 and the air-gap harmonic magnetic field that produces of DC excitation winding 6-2 on electrical excitation external stator carry out resolving point
Analysis, obtains number of pole-pairs P of the annular armature winding 5-2 of inner stator in compound machine1, external stator number of pole-pairs P2With adjustable magnetic block
Relation between number Ns is: P1=| mP2+ kNs |, wherein, m=1,3,5 ... ,+∞；K=0, ± 1, ± 2 ...,
±∞；Working as m=1, during k=-1, adjustable magnetic ring the harmonic field obtained after modulating is the strongest, and torque is mainly transmitted in adjustable magnetic ring both sides
Harmonic field there is identical angular rate, this compound machine speed governing when gear ratio Gr=mP can be obtained2+kNs/mP2,
So select external stator number of pole-pairs and the quantitative proportion of adjustable magnetic ring, the stable demand of torque can be met, otherwise will be unable to steadily
Transmission torque, as shown in Fig. 2, Fig. 3 and Fig. 5, select inner stator annular armature winding number of pole-pairs P1=3, adjustable magnetic block number
Ns=25, so can be obtained by number of pole-pairs P of external stator2=22, it is achieved speed ratio is 25/3.
Claims (3)
1. composite excitation axial magnetic flux modulation system composite structure motor, it is characterised in that described motor includes rotating shaft (1), forever
Magnetic external stator, adjustable magnetic rotor (4), inner stator, electrical excitation external stator, bearing (2), No. two bearings (7) and three
Number bearing (8)；
Described adjustable magnetic rotor (4) includes an adjustable magnetic ring and No. two adjustable magnetic rings；
It is fixed that described rotating shaft (1) sequentially passes through outside permanent magnetism external stator, adjustable magnetic ring, inner stator, No. two adjustable magnetic rings and electrical excitation
Son, and permanent magnetism external stator is rotationally connected with rotating shaft (1) by a bearing (2), inner stator by No. two bearings (7) and
Rotating shaft (1) is rotationally connected, and electrical excitation external stator is rotationally connected with rotating shaft (1) by No. three bearings (8), adjustable magnetic rotor
(4) fixing with rotating shaft (1) it is connected, between permanent magnetism external stator and an adjustable magnetic ring, between an adjustable magnetic ring and inner stator,
Gap is all left between inner stator and No. two adjustable magnetic rings and between No. two adjustable magnetic rings and electrical excitation external stator；
Described permanent magnetism external stator includes permanent magnetism external stator (3-1) and the permanent magnet (3-2) unshakable in one's determination being coaxially disposed, and permanent magnet (3-2)
It is fixed on iron core (3-1)；
Inner stator includes internal stator iron core (5-1) and annular armature winding (5-2), in annular armature winding (5-2) is wrapped in
In stator core (5-1)；
Electrical excitation external stator (6) includes electrical excitation external stator unshakable in one's determination (6-1) and DC excitation winding (6-2), DC excitation around
Group (6-2) is wrapped on the stator tooth of electrical excitation external stator (6-1) unshakable in one's determination；
Permanent magnet (3-2) uses 90 ° of modes of magnetizing of Halbach structure to magnetize；
A number adjustable magnetic ring and No. two adjustable magnetic rings are by adjustable magnetic iron block (4-1) and epoxy resin non-magnet material (4-2) circumferentially side
To being spaced composition.
Composite excitation axial magnetic flux modulation system composite structure motor the most according to claim 1, it is characterised in that decided at the higher level but not officially announced
Son (5-1) unshakable in one's determination is outside along the circumferential direction has groove, and annular armature winding (5-2) is embedded in groove.
Composite excitation axial magnetic flux modulation system composite structure motor the most according to claim 1 and 2, it is characterised in that
The number of pole-pairs of inner stator is P1, the number of pole-pairs of permanent magnetism external stator is P with the number of pole-pairs of electrical excitation external stator2, adjustable magnetic rotor
(4) in, the quantity of adjustable magnetic iron block (4-1) is Ns, P1+P2=Ns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435401.4U CN205583965U (en) | 2016-05-12 | 2016-05-12 | Mixed excitation axial magnetic flow modulation system composite construction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435401.4U CN205583965U (en) | 2016-05-12 | 2016-05-12 | Mixed excitation axial magnetic flow modulation system composite construction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583965U true CN205583965U (en) | 2016-09-14 |
Family
ID=56856357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620435401.4U Expired - Fee Related CN205583965U (en) | 2016-05-12 | 2016-05-12 | Mixed excitation axial magnetic flow modulation system composite construction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827078A (en) * | 2016-05-12 | 2016-08-03 | 哈尔滨理工大学 | Mixed excitation axial magnetic-flux modulated-type motor with composite structure |
| CN113691092A (en) * | 2021-08-26 | 2021-11-23 | 南京信息工程大学 | Double-stator axial magnetic field hybrid excitation memory motor with asymmetric air gap structure |
-
2016
- 2016-05-12 CN CN201620435401.4U patent/CN205583965U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827078A (en) * | 2016-05-12 | 2016-08-03 | 哈尔滨理工大学 | Mixed excitation axial magnetic-flux modulated-type motor with composite structure |
| CN113691092A (en) * | 2021-08-26 | 2021-11-23 | 南京信息工程大学 | Double-stator axial magnetic field hybrid excitation memory motor with asymmetric air gap structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160914 Termination date: 20180512 |