CN2399887Y - Surrounding-current permanent-magnet electromachine with axial magnetic field - Google Patents
Surrounding-current permanent-magnet electromachine with axial magnetic field Download PDFInfo
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- CN2399887Y CN2399887Y CN 99227816 CN99227816U CN2399887Y CN 2399887 Y CN2399887 Y CN 2399887Y CN 99227816 CN99227816 CN 99227816 CN 99227816 U CN99227816 U CN 99227816U CN 2399887 Y CN2399887 Y CN 2399887Y
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- stator
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- permanent magnet
- winding
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Abstract
The utility model relates to an axial magnetic field and circumferential current magnetoelectric machine which is composed of a nonmagnetic machine base 1, silicon steel sheet stator yoke 2, permanent magnet stator magnet steel 3, radial air gaps 4 of both sides, a nonmagnetic rotating shaft 5, silicon steel sheet rotor iron cores 6, stator poles 7 of both sides and an armature winding 8. The paths of the main magnetic flux in the air gaps 4 of both sides of the magnetoelectric machine are in the radial direction; after the rotor iron cores rotate in the air gaps 4, the direction of the magnetic fluxes is changed into the axial direction. The winding of the magnetoelectric machine can linked all the main magnetic fluxes. The structure of the winding is simple; the end part of the winding is omitted; copper loss and leakage inductance can be reduced. A permanent magnet is static, which can overcome the difficulty of excitation to have a strong magnetism collecting ability. Thus ferrite permanent magnet material with lower cost can be used. Under the condition of multiple poles, the magnetoelectric machine has low length-diameter ratio. The utility model can run in the state of a generator or a motor by being combined with a control device.
Description
The utility model is a kind of magneto, and what be specifically related to is the circumferential electric current magneto of a kind of axial magnetic field.
Present magneto both domestic and external, the normally magneto of radial flux, or disc-type permanent magnet motor.
The purpose of this utility model provides the circumferential electric current magneto of a kind of axial magnetic field.
The path that the purpose of this utility model is achieved in that main flux in the air gap of motor both sides for radially, change the iron core of rotor over to after, flow direction changes into axially, the main flux that the motor windings linkage is all.Magnetic pole just unshakable in one's determination and permanent magnet form motor stator, flow through circumferential electric current helix concentrated armature winding and have salient pole and the rotor of centered cylinder body portion (yoke portion).The main flux of two adjacent permanent magnet generations gathers stator poles and transfers to when passing air gap axially.Then, magnetic flux turns back to next stator poles again through the rotor pole of air gap, rotor pole, rotor yoke, the other end.Rotor magnetic pole on the two end plates is offset a pole span mutually.During as generator operation, thereby rotor rotated makes the magnetic flux change induced potential of winding linkage; As the motor operation, winding current will produce reluctance torque and permanent-magnet torque.
Concrete enforcement of the present utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is the structural representation according to the circumferential electric current magneto of a kind of axial magnetic field that the utility model proposes.Fig. 2 is the profile of Figure 1A-A, B-B.
Describe performance of the present utility model and working condition in detail below in conjunction with accompanying drawing.
The utility model is by non magnetic support 1, silicon steel sheet stator yoke 2, and permanent magnet magnetic steel of stator 3, both sides radial air gap 4, non magnetic rotating shaft 5, silicon steel sheet rotor core 6, both sides rotor pole 7 and armature winding 8 constitute.
It among the figure the circumferential stator that forms at interval of silicon steel sheet stator yoke 2 and permanent magnet magnetic steel of stator 3 edges by bar shaped or U-shaped.Permanent magnet magnetic steel of stator 3 circumferentially magnetizes, and the adjacent magnet steel direction of magnetization is reverse.The circumferential magnetic flux in both sides enters and transfers in the stator yoke 2 axially, enters both sides radial air gap 4 after concentrating, and forms alternating N, the S utmost point.Outside the non magnetic rotating shaft 5 is silicon steel sheet rotor core 6 and both sides rotor pole 7.Very circumferential tooth (utmost point), groove salient-pole structure at interval, the rotor pole of both sides (tooth) number respectively is 1/2nd of a stator poles, and 180 electrical degrees that circumferentially stagger mutually.Extremely concentrating magnetic flux in the same way in the radial air gap 4, transferring to axially through iron core and arrive the utmost point of opposite side, enter the radial air gap 4 of this side again of one side forms magnetic loop with stator magnetic circuit.Cylindrical armature winding 8 and rotor coaxial are fixed on the stator.Winding is concentrated circumferential screwed pipe shape coiling, so electric current is that circumferentially the magnetic field of generation is along rotor shaft direction.The path of main flux in the air gap 4 of motor both sides for radially, change the iron core of rotor over to after, flow direction changes into axially.The main flux that the motor windings linkage is all.Winding simple in structure saved winding overhang, reduced copper loss and leakage inductance.Permanent magnet is static, has overcome excitatory difficulty, and very strong poly-magnetic energy power is arranged, so can the lower ferrite permanent-magnet materials of use cost.This motor has low draw ratio under the situation of multipole number.Combine with control device, this motor can run on generator or electric motor state.During as generator operation, drive the rotor rotation, the main flux periodically-varied direction of linkage stator winding, induced electromotive force in stator winding.Through rectification output, can be used as DC generator generating supply load.When moving as motor, available DC power supply, or AC power become direct current after rectification.Power to winding according to position sensor signal by inverter, thereby produce reluctance torque, make rotor turn over a tooth pitch.Turn-off under the control in conducting constantly, rotor rotates continuously.
Claims (1)
1. one kind by non magnetic support 1, silicon steel sheet stator yoke 2, permanent magnet magnetic steel of stator 3, both sides radial air gap 4, non magnetic rotating shaft 5, silicon steel sheet rotor core 6, the circumferential electric current magneto of axial magnetic field that both sides rotor pole 7 and armature winding 8 are constituted; It is characterized in that:
A. the non magnetic support 1 interior stator that forms along circumferential interval by the magnetic links stator yoke 2 and the permanent magnet magnetic steel of stator 3 of bar shaped or U-shaped;
B. permanent magnet magnetic steel of stator 3 circumferentially magnetizes, and the adjacent magnet steel direction of magnetization is reverse.It is axially that the circumferential magnetic flux in both sides enters in the stator yoke 2, enters both sides radial air gap 4 after concentrating, and forms alternating N, the S utmost point;
C. outside the non magnetic rotating shaft 5 is silicon steel sheet rotor core 6 and both sides rotor pole 7; Very circumferential tooth, groove salient-pole structure at interval, the rotor number of poles of both sides respectively is 1/2nd of a stator poles, and 180 electrical degrees that circumferentially stagger mutually; Extremely concentrating magnetic flux in the same way in the radial air gap 4, transferring to axially through iron core and arrive the utmost point of opposite side, enter the radial air gap 4 of this side again of one side forms magnetic loop with stator magnetic circuit;
D. cylindrical armature winding 8 and rotor coaxial are fixed on the stator.Winding is for concentrating the coiling of circumferential screwed pipe shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227816 CN2399887Y (en) | 1999-07-12 | 1999-07-12 | Surrounding-current permanent-magnet electromachine with axial magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99227816 CN2399887Y (en) | 1999-07-12 | 1999-07-12 | Surrounding-current permanent-magnet electromachine with axial magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399887Y true CN2399887Y (en) | 2000-10-04 |
Family
ID=34017283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99227816 Expired - Fee Related CN2399887Y (en) | 1999-07-12 | 1999-07-12 | Surrounding-current permanent-magnet electromachine with axial magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2399887Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312831C (en) * | 2002-04-15 | 2007-04-25 | 乐金电子(天津)电器有限公司 | Induction motor |
-
1999
- 1999-07-12 CN CN 99227816 patent/CN2399887Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312831C (en) * | 2002-04-15 | 2007-04-25 | 乐金电子(天津)电器有限公司 | Induction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |