CN103683564A - Double-winding modular bearingless magnetic flux switching permanent magnet motor - Google Patents
Double-winding modular bearingless magnetic flux switching permanent magnet motor Download PDFInfo
- Publication number
- CN103683564A CN103683564A CN201310258633.8A CN201310258633A CN103683564A CN 103683564 A CN103683564 A CN 103683564A CN 201310258633 A CN201310258633 A CN 201310258633A CN 103683564 A CN103683564 A CN 103683564A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- motor
- stator
- tooth
- coil
- 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
Images
Abstract
The invention discloses a double-winding modular bearingless magnetic flux switching permanent magnet motor which comprises a rotor iron core, a stator iron core, permanent magnets, 4m armature coils and 4m suspension coils, wherein m is the phase number of the motor, both the rotor iron core and the stator iron core are salient pole structures, the stator iron core is formed by the alternating splicing of 4m E-shaped iron core units and 4m permanent magnets, the magnetizing directions of the permanent magnets are tangential, the magnetizing directions of the adjacent permanent magnets are opposite, a projected tooth in the middle of each of the E-shaped iron core units is a stator fault tolerance tooth, both the armature coils and the suspension coils are sleeved on stator permanent magnet teeth, and the stator fault tolerance tooth is provide with a coil. The motor has the simple structure of a bearingless switch reluctance motor, the high efficiency and high power density of a bearingless rotor permanent magnet motor, and high theoretical and practical values.
Description
Technical field
The present invention relates to the technical field that motor is manufactured, and particularly firm simple about a kind of rotor, winding construction is complementary modular without bearing flux switch permanent magnet motor.
Background technology
Bearing-free motor is the New-type electric machine that integrates rotary actuation and magnetic bearing function, it has not only overcome many limitations of magnetic bearing motor, also has that axial utilance is high, compact conformation, can increase substantially under critical whirling speed, equal axial length and can increase substantially the advantages such as power output.Make a general survey of the document of delivering both at home and abroad, adopt the motor type without bearing technology to mainly contain asynchronous machine, reluctance motor and permagnetic synchronous motor (all referring to rotor permanent magnet formula, lower same).Without bearing asynchronous machine is simple in structure with it, reliability is high, be easy to the features such as weak magnetic, become research bearing-free motor type the earliest.But its distinct issues is that its suspending power is controlled and coupling is controlled in torque, rotating speed is easily controlled and is disturbed by suspending power.Bearing-free switch reluctance motor is simple in structure, manufacture and easy to maintenance, and robustness is good, is applicable to the adverse circumstances such as high temperature.But the power density of bearing-free switch reluctance motor and efficiency are difficult to further raising.By contrast, bearing-free permanent magnet synchronous motor is with the advantage such as it is simple in structure, reliable, volume is little, lightweight, efficiency is high and power density is large, in fields such as flywheel energy storage, various high-speed machine tool spindle motor and canned pump class, centrifuge, compressor, high-speed micro hard disk drives, have more standby practical advantage, be considered to have most the bearing-free motor of application prospect.Yet, the bearing-free permanent magnet synchronous motor of the employing conventional rotors magneto structure having occurred has certain limitation: on the one hand, permanent magnet is mounted on rotor surface or is embedded in the globality structure that rotor has destroyed rotor, and as high speed motor, its rotor is conventionally all in ultrahigh speed running status (tens thousand of revs/min even hundreds thousand of revs/min) even at a high speed, the impact that magnet steel is subject to centrifugal force when preventing that motor from running up gets rid of, the fixture that stainless steel or metallic fiber material are made is all housed on rotor, cause its complex structure, manufacturing cost improves, effective air gap is long, permanent magnet utilance reduces, on the other hand, permanent magnet is positioned at rotor, cooling condition is poor, heat radiation difficulty, along with the rising of temperature, cause take neodymium iron boron (NdFeB) as main permanent magnet performance declines, when serious, even there is irreversible demagnetization, restrict the further raising of motor performance, and then limited the application in some occasion without bearing rotor permanent-magnetic electric machine.
Shortcoming for common rotor permanent magnet type motor, several novel stator permanent magnetic type electrics within nearly 20 years, have been there are successively, be about to permanent magnet and be placed in stator, as bisalient-pole permanent-magnet (doubly salient permanent magnet, DSPM) motor, flux-reversal permanent magnetism (flux reversal permanent magnet, FRPM) motor and magnetic flux switch permanent magnetism (flux-switching permanent magnet, FSPM) motor, the common feature of the type motor is exactly that armature winding and the permanent-magnet magnetic steel capital are placed in stator, and on rotor both without winding without permanent magnet, simple in structure, be applicable to high-speed cruising.Be compared to DSPM and FRPM motor, FSPM motor has that power density is high, efficiency is high, torque fan-out capability is large, load capacity is strong, without skewed slot, can obtain highly the features such as sinusoidal back electromotive force, thereby is considered to most possibly replace a kind of structure of rotor permanent magnet type motor.
To sum up, bearing-free switch reluctance motor and without bearing rotor permanent-magnetic electric machine, has drawback separately: although the former is simple in structure, reliability is high, at aspects such as efficiency, power factors not as magneto; Although the latter has improved efficiency and the power factor of motor, permanent magnet is placed in rotor, and its heat radiation and mechanically stable problem can not be ignored.
Summary of the invention
goal of the invention
The deficiency existing in order to overcome prior art, the present invention seeks to be the Magneticflux-switching type bearing-free motor that provides a kind of permanent magnet to be placed in stator, this motor combines the fundamental characteristics of bearing-free motor and stator permanent-magnet flux switch motor, makes that motor has less location torque, power density/efficiency is high and the advantage such as fault freedom is good.
technical scheme
For achieving the above object, the present invention is achieved by the following technical solution:
Double winding modularization is without a bearing flux switch permanent magnet motor, and this motor comprises rotor core, stator core, permanent magnet, a 4m armature coil and 4m suspended coil, the number of phases that described m is motor; Stator core and rotor core are salient-pole structure, stator core is formed by 4m E shape core unit and 4m permanent magnet alternative splicing, the tooth protruding in the middle of E shape core unit is stator fault-tolerant teeth, described permanent magnet is arranged between adjacent two E shape iron cores, and adjacent permanent magnet magnetizing direction is contrary, the magnetizing direction of permanent magnet is tangential, and the permanent magnet of the adjacent protrusion tooth of described adjacent two E shape iron cores and E shape sandwich unshakable in one's determination forms stator permanent magnet tooth; Armature coil and suspended coil are sleeved on stator permanent magnet tooth, and described motor makes motor have rotation and suspending power by the interaction of armature coil and suspended coil and permanent magnetic field simultaneously.
As further innovation of the present invention, described rotor is straight trough or flume structure.
As further innovation of the present invention, two adjacent permanent magnets adopts and alternately magnetizes.
As further innovation of the present invention, permanent magnet is neodymium iron boron.
As further innovation of the present invention, the armature coil in homophase E pattern piece is cascaded mutually.
As further innovation of the present invention, opposed two of suspended coil in homophase E pattern piece is cascaded.
As further innovation of the present invention, stator core is that permeability magnetic material is made.
beneficial effect:a kind of double winding modularization provided by the invention, without bearing flux switch permanent magnet motor, compared with prior art, has following beneficial effect:
1, on rotor not only without winding but also without permanent magnet, have simple in structure, rotor is firm, power density is high, efficiency advantages of higher;
2, bearing-free switch reluctance motor compact conformation, simple, fault freedom and the good advantage of robust performance have structurally been retained;
3, in performance, retained the advantage that bearing-free permanent magnet synchronous motor loss is little, power density is large, efficiency is high;
4, the armature in motor and suspending windings all adopt concentrated winding, and end is shorter, and loss is lower;
5, adopt stator fault-tolerant teeth, when having played the alternate physical isolation effect of motor, more realized the decoupling zero of magnetic circuit between each phase of motor;
6, suspended coil, armature coil and permanent magnet three are all placed in stator core, are easy to heat radiation, reliable.
Accompanying drawing explanation
Fig. 1 is that double winding modularization proposed by the invention is without bearing flux switch permanent magnet motor structural representation.
In figure: rotor core 1, stator core 2, stator fault-tolerant teeth 21, permanent magnetism tooth 22, stator permanent magnet tooth 23, permanent magnet 3, armature coil 4, suspended coil 5.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of modularization double winding without bearing flux switch permanent magnet motor, be specially a threephase stator 12/14 utmost point modularized motor, the number of phases of motor is m, wherein m=3.
This motor comprises rotor core 1 and stator core 2, described rotor core 1 is positioned at the inside of stator core 2, rotor core 1 and stator core 2 are salient-pole structure, described stator core 2 has 4m E shape core unit and 4m staggered being spliced of permanent magnet 3, wherein the magnetizing direction of permanent magnet 3 is tangential, and the magnetizing direction of adjacent permanent magnet 3 is contrary, the tooth protruding in the middle of described E shape core unit is stator fault-tolerant teeth 21, what both sides protruded is 22, one permanent magnets 3 of permanent magnetism tooth and the common formation of two the permanent magnetism teeth 22 stator permanent magnet tooth 23 that contacts with it; Described armature coils 4 and suspension pitch of the laps 5 are sleeved on stator permanent magnet tooth 23.
In said structure, the first armature coil 401, the 4th armature coil 404, the 7th armature coil 407 and the tenth armature coil 410 are composed in series A phase, the second armature coil 402, the 5th armature coil 405, the 8th armature coil 408 and the 11 armature coil 411 are composed in series B phase, and the 3rd armature coil 403, the 6th armature coil 406, the 9th armature coil 409 and the 12 armature coil 412 are composed in series C phase; Wherein every phase winding is comprised of two armature coils, each armature coil 4 is across on the stator permanent magnet tooth 23 corresponding, 4 two flanges of armature coil distribute in the groove of two of the left and right of corresponding stator permanent magnet tooth 23, spatially vertical with corresponding stator permanent magnet tooth 23.
Suspended coil has 12, and the first suspended coil 501 and the 7th suspended coil 507 are composed in series the X-direction suspending windings of A phase, and the 4th suspended coil 504 and the tenth suspended coil 510 are composed in series the suspending windings of the Y direction of A phase; The second suspended coil 502 and the 8th suspended coil 508 are composed in series the X-direction suspending windings of B phase, and the 5th suspended coil 505 and the 11 suspended coil 511 are composed in series the suspending windings of the Y direction of B phase; The 3rd suspended coil 503 and the 9th suspended coil 509 are composed in series the X-direction suspending windings of C phase, and the 6th suspended coil 506 and the 12 suspended coil 512 are composed in series the suspending windings of the Y direction of C phase; Each suspended coil 5 is across on the stator permanent magnet tooth 23 corresponding, and 5 two flanges of suspended coil distribute in the groove of two of the left and right of corresponding stator permanent magnet tooth 23, spatially vertical with corresponding stator permanent magnet tooth 23.
Claims (7)
1. double winding modularization, without a bearing flux switch permanent magnet motor, is characterized in that: this motor comprises rotor core, stator core, permanent magnet, a 4m armature coil and 4m suspended coil, the number of phases that described m is motor; Stator core and rotor core are salient-pole structure, stator core is formed by 4m E shape core unit and 4m permanent magnet alternative splicing, the tooth protruding in the middle of E shape core unit is stator fault-tolerant teeth, described permanent magnet is arranged between adjacent two E shape iron cores, and adjacent permanent magnet magnetizing direction is contrary, the magnetizing direction of permanent magnet is tangential, and the permanent magnet of the adjacent protrusion tooth of described adjacent two E shape iron cores and E shape sandwich unshakable in one's determination forms stator permanent magnet tooth; Armature coil and suspended coil are sleeved on stator permanent magnet tooth, and described motor makes motor have rotation and suspending power by the interaction of armature coil and suspended coil and permanent magnetic field simultaneously.
2. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: described rotor is straight trough or flume structure.
3. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: two adjacent permanent magnets adopts and alternately magnetizes.
4. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: permanent magnet is neodymium iron boron.
5. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: the armature coil in homophase E pattern piece is cascaded mutually.
6. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: opposed two of suspended coil in homophase E pattern piece is cascaded.
7. double winding modularization according to claim 1, without bearing flux switch permanent magnet motor, is characterized in that: described stator core is that permeability magnetic material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258633.8A CN103683564A (en) | 2013-06-26 | 2013-06-26 | Double-winding modular bearingless magnetic flux switching permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258633.8A CN103683564A (en) | 2013-06-26 | 2013-06-26 | Double-winding modular bearingless magnetic flux switching permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103683564A true CN103683564A (en) | 2014-03-26 |
Family
ID=50320197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258633.8A Pending CN103683564A (en) | 2013-06-26 | 2013-06-26 | Double-winding modular bearingless magnetic flux switching permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103683564A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201852B (en) * | 2014-09-11 | 2016-09-07 | 东南大学 | Winding complementary type rotor permanent magnet flux switch motor |
| CN107134866A (en) * | 2017-04-24 | 2017-09-05 | 天津大学 | Double winding bearing-free flux switch permanent magnet motor |
| CN109494895A (en) * | 2018-12-24 | 2019-03-19 | 浙江大学 | A kind of Modular motor stator |
| CN113659739A (en) * | 2021-08-17 | 2021-11-16 | 浙江大学 | Novel modular motor stator |
| CN115065178A (en) * | 2022-06-06 | 2022-09-16 | 河北工业大学 | Integrated double-module flux reversal motor of vehicle-mounted charger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007306785A (en) * | 2006-03-13 | 2007-11-22 | Tokyo Univ Of Science | Bearingless motor and bearingless motor control system |
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| KR20120098090A (en) * | 2011-02-28 | 2012-09-05 | 경성대학교 산학협력단 | Bearingless switched reluctance motor with double stator |
| CN203326742U (en) * | 2013-06-26 | 2013-12-04 | 南京信息工程大学 | Dual-winding modularization bearing-free flux-switching permanent-magnet motor |
-
2013
- 2013-06-26 CN CN201310258633.8A patent/CN103683564A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007306785A (en) * | 2006-03-13 | 2007-11-22 | Tokyo Univ Of Science | Bearingless motor and bearingless motor control system |
| KR20120098090A (en) * | 2011-02-28 | 2012-09-05 | 경성대학교 산학협력단 | Bearingless switched reluctance motor with double stator |
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN203326742U (en) * | 2013-06-26 | 2013-12-04 | 南京信息工程大学 | Dual-winding modularization bearing-free flux-switching permanent-magnet motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201852B (en) * | 2014-09-11 | 2016-09-07 | 东南大学 | Winding complementary type rotor permanent magnet flux switch motor |
| CN107134866A (en) * | 2017-04-24 | 2017-09-05 | 天津大学 | Double winding bearing-free flux switch permanent magnet motor |
| CN109494895A (en) * | 2018-12-24 | 2019-03-19 | 浙江大学 | A kind of Modular motor stator |
| CN113659739A (en) * | 2021-08-17 | 2021-11-16 | 浙江大学 | Novel modular motor stator |
| CN115065178A (en) * | 2022-06-06 | 2022-09-16 | 河北工业大学 | Integrated double-module flux reversal motor of vehicle-mounted charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102290883B (en) | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth | |
| CN103199660A (en) | Stator permanent magnetic flux-switching bearing-free motor with E-shaped teeth | |
| CN201038839Y (en) | Twisted mutually-supplementary magnetic pass switching dual protrusion pole permanent magnetic motor | |
| CN101621234A (en) | Magnetic flow switching type axial magnetic field magnetoelectric machine with middle stator structure | |
| CN102832771A (en) | Combined-type flux switching permanent magnet motor | |
| CN102931802B (en) | A kind of complementary-type fault-tolerant linear | |
| CN103199641A (en) | Stator permanent magnetic flux-switching bearing-free motor with U-shaped teeth | |
| CN104967270B (en) | Magnetism gathering passive rotor transverse magnetic flux single-phase motor | |
| CN101662198A (en) | Stator surface mounted doubly salient pole permanent magnet motor | |
| CN104967271B (en) | The passive rotor transverse magnetic flux monophase machine of Crossed Circle winding | |
| CN102684331A (en) | Stator permanent magnet type bearingless motor | |
| CN102157993A (en) | Modularized flux switching permanent magnet (FSPM) motor | |
| CN101662172A (en) | Composite excitation type magnetic flux reverse motor | |
| CN103683564A (en) | Double-winding modular bearingless magnetic flux switching permanent magnet motor | |
| CN203326742U (en) | Dual-winding modularization bearing-free flux-switching permanent-magnet motor | |
| CN110224563A (en) | Three-phase magneticfocusing sided passive rotor transverse flux permanent magnetic motor | |
| CN110086308A (en) | Passive rotor transverse flux permanent magnetic motor inside and outside six phase magneticfocusings | |
| CN201499065U (en) | Single-stator and double-rotor variable magnetic flow permanent magnet brushless motor | |
| CN103872811A (en) | Bearing-less stator surface mounting type permanent magnet motor for semi-tooth winding | |
| CN110572001B (en) | Polyphase permanent magnet reluctance motor | |
| CN103248193B (en) | Fault-tolerate primary permanent magnetic vernier linear motor | |
| CN204408154U (en) | A kind of double winding modular stator permanent-magnet type magnetic flux switches bearing-free motor | |
| CN103178672B (en) | Stator-surface-mounted type doubly salient permanent magnet motor adopting modularized rotor | |
| CN202565044U (en) | Stator permanent magnet bearingless motor | |
| CN206195572U (en) | Two stators do not have bearing magnetic flow reverse motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |
|
| RJ01 | Rejection of invention patent application after publication |