CN108649765A - A kind of outer rotor five degrees of freedom without bearing switched reluctance machines - Google Patents
A kind of outer rotor five degrees of freedom without bearing switched reluctance machines Download PDFInfo
- Publication number
- CN108649765A CN108649765A CN201810702163.2A CN201810702163A CN108649765A CN 108649765 A CN108649765 A CN 108649765A CN 201810702163 A CN201810702163 A CN 201810702163A CN 108649765 A CN108649765 A CN 108649765A
- Authority
- CN
- China
- Prior art keywords
- iron core
- rotor
- stator
- tooth
- magnetic
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
- H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
Abstract
The invention discloses a kind of outer rotor five degrees of freedom without bearing switched reluctance machines, including common inner stator and common outer rotor, the common inner stator is made of the left stator iron core, permanent-magnetic clamp, right stator core being sequentially connected in series on exhausted magnetic axis, there are four suspension teeth in the directions x and the setting of the directions y of the left stator iron core and each comfortable edge of right stator core, suspending windings, torque winding are also wound on the suspension tooth and torque tooth respectively by being connected with several torque teeth every magnetic patch between two neighboring suspension tooth；The common outer rotor by being fixedly connected on the left rotor iron core of magnetic conduction shell, right rotor iron core forms, coaxial spaced is set to left stator iron core, right stator core radial outside respectively for the left rotor iron core, right rotor iron core, the left rotor iron core, right rotor iron core inner periphery be respectively arranged with several rotor tooths.
Description
Technical field
The present invention relates to technical field of motor manufacture, and in particular to a kind of outer rotor five degrees of freedom without bearing switching magnetic-resistance electricity
Machine.
Background technology
Bearing-free motor with no friction, abrasion, without lubrication and sealing, it is easy to accomplish higher rotating speed and more high-power fortune
Row, has broad application prospects in fields such as aerospace, turbomolecular pump, flywheel energy storage, canned pump, high-speed electric main shafts.
It is asynchronous that bearing-free motor is broadly divided into bearing-free（Induction）Motor, bearing-free permanent magnet synchronous motor and bearing-free switch reluctance motor
Three kinds.For bearing-free switch reluctance motor especially therein with simple in structure, high mechanical strength, control are flexible, fault-tolerant
The advantages such as performance is good, and robustness is good have broad application prospects in fields such as electric vehicle, universal industrial, household electrical appliance.
Traditional bearing-free switch reluctance motor is that the winding of magnetic bearing generation suspending power is integrated into switched reluctance machines
In stator slot, equal coiling double winding, i.e. suspending windings and torque winding on each stator tooth control torque winding by coordination
With suspending windings electric current, generates suspending windings magnetic field and torque winding magnetic field, the two are overlapped mutually, by rotor side air gap
Magnetic field-enhanced, opposite direction air-gap field weakens to obtain the radial suspension force for being directed toward air-gap field enhancing direction, direct torque
There are close couplings between the control that suspends.And to realize rotor five degree of freedom stable suspersion, it is necessary to using axial Single Degree of Freedom Magnetic
Bearing, radial two-freedom magnetic bearing and two-freedom bearing-free switch reluctance motor are combined into five degrees of freedom without bearing driving system
System, bulky, axial length is long, and critical speed is high, it is difficult to embody the high rotating speed of bearing-free motor technology and high power density
Advantage.
Invention content
The object of the present invention is to provide a kind of compact-sized, the control that suspends is mutual indepedent with direct torque, radial actively control
System, and a kind of axial outer rotor five degrees of freedom without bearing switched reluctance machines passively controlled.
The invention is realized by the following technical scheme：
A kind of outer rotor five degrees of freedom without bearing switched reluctance machines, including common inner stator and common outer rotor, it is described common
Inner stator is made of the left stator iron core, permanent-magnetic clamp, right stator core being sequentially connected in series on exhausted magnetic axis, the left stator iron core and
The directions x of each comfortable edge of right stator core and the setting of the directions y there are four suspension tooth, between two neighboring suspension tooth also by every
Magnetic patch is connected with several torque teeth, is wound with suspending windings, torque winding on the suspension tooth and torque tooth respectively；It is described common
Outer rotor by being fixedly connected on the left rotor iron core of magnetic conduction shell, right rotor iron core forms, the left rotor iron core, right rotor iron core
Coaxial spaced is set to left stator iron core, right stator core radial outside respectively, the left rotor iron core, right rotor iron core it is interior
Circumference is respectively arranged with several rotor tooths.
The further scheme of the present invention is that the opposite face of the left stator iron core and right stator core is coaxially connected with respectively
Left magnetic conduction bridge, the right magnetic conduction bridge being sleeved on exhausted magnetic axis, the left magnetic conduction bridge, right magnetic conduction bridge end connection permanent-magnetic clamp both ends.
The further scheme of the present invention is that the facewidth of the suspension tooth is more than the facewidth of torque tooth, and the facewidth of suspension tooth
More than one pole span of motor.
The further scheme of the present invention is the left rotor iron core, right rotor iron core, left stator iron core and right stator core
Radical length be more than axial length be flake.
The advantages of the present invention over the prior art are that：
One, left side stator core, right side stator core and permanent-magnetic clamp are cascaded using an exhausted magnetic axis, in left side stator
Iron core, right side stator core respectively a setting suspension tooth, complementary space are provided with torque tooth, torque tooth and suspension tooth in the directions x and y
It is connected as one by magnetic separator, coiling torque winding on torque tooth, coiling suspending windings on suspension tooth, torque winding and outstanding
Floating winding is centralized winding, and the air gap between suspension tooth and rotor tooth is less than the air gap between torque tooth and rotor tooth；
Quiescent biasing magnetic flux is provided for motor by the permanent-magnetic clamp of an axial magnetized, the suspending windings energization generation of the left and right sides is left and right
Two lateral suspension control magnetic fluxs, suspension control magnetic flux adjust quiescent biasing magnetic flux, and radial suspension force is generated on rotor, control rotor
Radial stable suspersion；Left and right sides rotor core and stator core fry batter in a thin layer shape, the axial reluctance force generated by biasing magnetic flux
Realize passive control；
Two, compared with being provided with the bearing-free switch reluctance motor of double winding on each stator tooth, suspend control, direct torque
Independently of each other, control is simple, it is easy to accomplish；
Three, compared with common five degrees of freedom without bearing motor, axial length is shorter, can realize that high speed/ultrahigh speed is run, and institute
Need displacement sensor less, driving circuit is less, and control system hardware is simple；The outer rotor five degrees of freedom without bearing of the structure is opened
Close reluctance motor can be widely applied to flywheel energy storage, various high-speed machine tool spindle motors and canned pump class, centrifuge, compressor,
The high speed such as high-speed small-size hard disk drive directly drives field.
Description of the drawings
Fig. 1 is the Structure explosion diagram of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the side view of the present invention.
Fig. 4 is the left view structure and biasing magnetic flux schematic diagram of the present invention.
Fig. 5 is winding current direction and the suspension magnetic flux schematic diagram of the left side directions the generation+x suspending power of the present invention.
Fig. 6 is that the right side of the present invention regards structure and biasing magnetic flux schematic diagram.
Fig. 7 is winding current direction and the suspension magnetic flux schematic diagram of the right side directions the generation+x suspending power of the present invention.
Fig. 8 is the radial suspension principle schematic of the present invention.
Fig. 9 is the axial suspension schematic diagram of the present invention.
Figure 10 is the inclined direction suspension schematic diagram of the present invention.
Specific implementation mode
A kind of outer rotor five degrees of freedom without bearing switched reluctance machines as shown in Fig. 1 ~ 3, including common inner stator and altogether
Same outer rotor, the common inner stator by the left stator iron core 4, axial magnetized that are sequentially connected in series on exhausted magnetic axis 6 permanent-magnetic clamp 5,
Right stator core 7 forms, and the opposite face of the left stator iron core 4 and right stator core 7 is coaxially connected with respectively is sleeved on exhausted magnetic axis 6
On left magnetic conduction bridge 10, right magnetic conduction bridge 11, the left magnetic conduction bridge 10, right magnetic conduction bridge 11 end be separately connected 5 both ends of permanent-magnetic clamp.
The directions x and the setting of the directions y of the left stator iron core 4 and each comfortable edge of right stator core 7 are there are four suspension tooth 17, and adjacent two
Also by being connected with several torque teeth 14 every magnetic patch 13 between a suspension tooth 17, on the suspension tooth 17 and torque tooth 14 rotating around
It is formed with suspending windings 16, torque winding 15, the facewidth of the suspension tooth 17 is more than the facewidth of torque tooth 14, and the tooth of suspension tooth 17
It is wider than one pole span of motor, the common outer rotor is by being embedded in the left rotor iron core 2 of 1 inner cavity of columnar magnetic conduction shell, turning right
Sub- iron core 9 forms, and coaxial spaced is set to left stator iron core 4, right stator iron respectively for the left rotor iron core 2, right rotor iron core 9
7 radial outside of the heart forms radial working gas gap, the left rotor iron core 2, right rotor iron core 9 inner periphery be respectively arranged with 14
Rotor tooth 12.
The quantity of the rotor tooth 12 and torque tooth 14 is adjustable.
Radial suspension principle is：As shown in Fig. 4 ~ Fig. 8, permanent-magnetic clamp 5 generates biasing magnetic flux 18, biases magnetic flux 18 from permanent-magnetic clamp
5 poles N, by left magnetic conduction bridge 10, turn of the suspension tooth 17 of left stator iron core 4, left radial working gas gap, left rotor iron core 2
Sub- tooth 12, magnetic conduction shell 1, the rotor tooth 12 of right rotor iron core 9, right radial working gas gap, right stator core 7 suspension tooth 17,
Right magnetic conduction bridge 11 returns to the poles S of permanent-magnetic clamp 5, forms axial closed path.
Suspending windings 16 on left stator iron core 4 and right stator core 7 are powered, generate respectively left suspension control magnetic flux 19,
Right suspension control magnetic flux 20, left suspension control magnetic flux 19 form closed path in left radial, and right suspension control magnetic flux 20 is on the right side
Side is formed radially closed path, adjusts biasing magnetic flux 18 in the left and right sides respectively, is produced on left rotor iron core 2, right rotor iron core 9
Raw directionxWithyThe radial suspension force in direction.
Axial suspension principle is：As shown in Figure 9 and Figure 10, when the center of common outer rotor central axis and common inner stator
When axis is misaligned, bias magnetic field 18 will generate reluctance force, and common outer rotor is retracted equilbrium position, realizes common outer rotor shaft
To the passive control with inclined direction.
Principle of Rotating is：Torque winding 15 is divided for heterogeneous structure, it is suitable to every phase wheel flow-thru electrode, or using other energizations
Sequence generates torque winding magnetic field, and torque winding magnetic field forms closed path between torque tooth and rotor tooth, generates reluctance force,
Torque is generated, realizes rotor rotation.
Permanent-magnetic clamp 5 is made of the good permanent-magnet rare-earth ring of magnetic property or ferrite permanent-magnet ring, suspending windings 15, torque around
Group 16, which is all made of after the electromagnetic coil coiling of well conducting, invades paint and dries；Left rotor iron core 2, right rotor iron core 9, left stator
Iron core 4, right stator core 7 are overrided to form in an axial direction by the good thin silicon steel plates of magnetic property, left stator iron core 4, right stator
The radical length of iron core 7 is more than axial width flakiness type, left rotor iron core 2, the axial width of right rotor iron core 9 and left stator
Iron core 4, the axial width of right stator core 7 are equal；Left magnetic conduction bridge 10, right magnetic conduction bridge 11 and magnetic conduction shell 1 are good by magnetic property
Good whole block material is made.
According to the prior art, displacement sensor is installed on stator, or pass through without gap sensors algorithm, detection or identification
Rotor radial offset builds radial displacement closed-loop control system, realizes radial active control and stable suspersion.
Claims (4)
1. a kind of outer rotor five degrees of freedom without bearing switched reluctance machines, including common inner stator and common outer rotor, feature
It is：The common inner stator is by being sequentially connected in series in exhausted magnetic axis（6）On left stator iron core（4）, permanent-magnetic clamp（5）, right stator iron
The heart（7）Composition, the left stator iron core（4）With right stator core（7）There are four the directions x of each leisure edge and the setting of the directions y
Suspension tooth（17）, two neighboring suspension tooth（17）Between also by every magnetic patch（13）It is connected with several torque teeth（14）, described outstanding
Floating tooth（17）With torque tooth（14）It is upper to be wound with suspending windings respectively（16）, torque winding（15）；The common outer rotor is by solid
Surely it is connected to magnetic conduction shell（1）Left rotor iron core（2）, right rotor iron core（9）Composition, the left rotor iron core（2）, right rotor iron
The heart（9）Coaxial spaced is set to left stator iron core respectively（4）, right stator core（7）Radial outside, the left rotor iron core（2）、
Right rotor iron core（9）Inner periphery be respectively arranged with several rotor tooths（12）.
2. a kind of outer rotor five degrees of freedom without bearing switched reluctance machines as described in claim 1, it is characterised in that：The left side
Stator core（4）With right stator core（7）Opposite face be coaxially connected be sleeved on exhausted magnetic axis respectively（6）On left magnetic conduction bridge
（10）, right magnetic conduction bridge（11）, the left magnetic conduction bridge（10）, right magnetic conduction bridge（11）End connect permanent-magnetic clamp（5）Both ends.
3. a kind of outer rotor five degrees of freedom without bearing switched reluctance machines as described in claim 1, it is characterised in that：It is described outstanding
Floating tooth（17）The facewidth be more than torque tooth（14）The facewidth, and suspension tooth（17）The facewidth be more than one pole span of motor.
4. a kind of outer rotor five degrees of freedom without bearing switched reluctance machines as described in claim 1, it is characterised in that：The left side
Rotor core（2）, right rotor iron core（9）, left stator iron core（4）With right stator core（7）Radical length be more than axial length
For flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702163.2A CN108649765A (en) | 2018-06-30 | 2018-06-30 | A kind of outer rotor five degrees of freedom without bearing switched reluctance machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702163.2A CN108649765A (en) | 2018-06-30 | 2018-06-30 | A kind of outer rotor five degrees of freedom without bearing switched reluctance machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108649765A true CN108649765A (en) | 2018-10-12 |
Family
ID=63750450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810702163.2A Pending CN108649765A (en) | 2018-06-30 | 2018-06-30 | A kind of outer rotor five degrees of freedom without bearing switched reluctance machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649765A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182302A (en) * | 1997-07-07 | 1998-05-20 | 中国航天工业总公司 | Efficient multiple-state electric motor |
| CN1272716A (en) * | 1999-04-30 | 2000-11-08 | 哈尔滨工业大学 | Mixed magnetic circuit polygon coupling electric machine |
| CN1780119A (en) * | 2004-11-19 | 2006-05-31 | 谢庆生 | Reluctance motor with repelling-attracting permanent magnetic switch |
| CN101110542A (en) * | 2006-07-17 | 2008-01-23 | 何晓继 | Controllable magnetic motor |
| CN101964575A (en) * | 2009-07-23 | 2011-02-02 | 张世清 | Double-equal pole double-section stator/rotor reluctance generator |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN102823113A (en) * | 2010-03-09 | 2012-12-12 | 西门子公司 | Electrical motor incorporating internal rotor cooling |
| CN106992644A (en) * | 2017-04-26 | 2017-07-28 | 江苏大学 | A kind of five degree of freedom composite excitation magnetic suspension switched reluctance motor |
| CN107134881A (en) * | 2017-04-26 | 2017-09-05 | 江苏大学 | A kind of five degree of freedom composite excitation magnetic suspension switched reluctance motor |
-
2018
- 2018-06-30 CN CN201810702163.2A patent/CN108649765A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182302A (en) * | 1997-07-07 | 1998-05-20 | 中国航天工业总公司 | Efficient multiple-state electric motor |
| CN1272716A (en) * | 1999-04-30 | 2000-11-08 | 哈尔滨工业大学 | Mixed magnetic circuit polygon coupling electric machine |
| CN1780119A (en) * | 2004-11-19 | 2006-05-31 | 谢庆生 | Reluctance motor with repelling-attracting permanent magnetic switch |
| CN101110542A (en) * | 2006-07-17 | 2008-01-23 | 何晓继 | Controllable magnetic motor |
| CN101964575A (en) * | 2009-07-23 | 2011-02-02 | 张世清 | Double-equal pole double-section stator/rotor reluctance generator |
| CN102823113A (en) * | 2010-03-09 | 2012-12-12 | 西门子公司 | Electrical motor incorporating internal rotor cooling |
| CN102306995A (en) * | 2011-08-26 | 2012-01-04 | 北京航空航天大学 | Permanent magnet biased bearingless switched reluctance motor |
| CN106992644A (en) * | 2017-04-26 | 2017-07-28 | 江苏大学 | A kind of five degree of freedom composite excitation magnetic suspension switched reluctance motor |
| CN107134881A (en) * | 2017-04-26 | 2017-09-05 | 江苏大学 | A kind of five degree of freedom composite excitation magnetic suspension switched reluctance motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108809023B (en) | Disc type three-degree-of-freedom magnetic suspension switched reluctance motor | |
| CN105515229B (en) | A kind of disc type electric machine | |
| CN211151779U (en) | Stator permanent magnet type winding mixed excitation two-degree-of-freedom motor | |
| CN106787310B (en) | A kind of magnetic-field-enhanced Consequent pole permanent magnet motor | |
| CN112087067B (en) | Three-suspension-pole magnetic suspension sheet switch reluctance motor | |
| CN108847725A (en) | A kind of stator permanent-magnet sheet type bearing-free switch reluctance motor | |
| CN108712047A (en) | A kind of Three Degree Of Freedom bearing-free switch reluctance motor | |
| Xu et al. | Design and analysis of a novel 12/14 hybrid pole type bearingless switched reluctance motor | |
| CN108809030A (en) | A kind of two-freedom bearing-free switch reluctance motor of outer winding control | |
| CN108599504B (en) | Five-degree-of-freedom bearingless switched reluctance motor | |
| CN109067024A (en) | A kind of big torque micro-vibration magnetic suspension switched reluctance motor | |
| CN108880152A (en) | A kind of bimorph transducer composite excitation magnetic suspension switched reluctance motor | |
| CN106451854B (en) | A kind of interdigital Consequent pole permanent magnet motor | |
| CN105914981B (en) | A kind of electric vehicle composite excitation wheel hub motor | |
| CN108809024B (en) | Axial single-degree-of-freedom bearingless switched reluctance motor | |
| CN108768215A (en) | A kind of disc type magnetic suspension switched reluctance motor of radial motor cod | |
| RU2475926C1 (en) | Magnetoelectric machine rotor system | |
| CN112910130B (en) | Rotor magnetic pole modulation type variable magnetic flux memory motor | |
| CN108649765A (en) | A kind of outer rotor five degrees of freedom without bearing switched reluctance machines | |
| CN209120023U (en) | A kind of built-in outer rotor bearing-free switch reluctance motor of suspension tooth | |
| CN108809021A (en) | A kind of dual thin chip five degrees of freedom without bearing switched reluctance machines | |
| CN210608875U (en) | Radial magnetic field composite magnetic flux switching motor | |
| CN114157063A (en) | Asymmetric permanent magnet auxiliary synchronous reluctance motor | |
| CN108712048B (en) | Stator permanent magnet type five-degree-of-freedom conical bearingless switched reluctance motor | |
| CN108599505A (en) | A kind of five degrees of freedom without bearing switched reluctance machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |