CN107769501B - A kind of disc type axial flux motor - Google Patents
A kind of disc type axial flux motor Download PDFInfo
- Publication number
- CN107769501B CN107769501B CN201711060629.5A CN201711060629A CN107769501B CN 107769501 B CN107769501 B CN 107769501B CN 201711060629 A CN201711060629 A CN 201711060629A CN 107769501 B CN107769501 B CN 107769501B
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- rotor
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
-
- 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
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- 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
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention relates to a kind of disc type axial flux motors, including cricoid casing, stator, the first rotor, the second rotor and shaft；Improvement is: stator is the segmental structure without magnetic yoke, is made of the stator unit of 12 or more even numbers；The first rotor and the second rotor structure are identical, are the improved double-deck Halbach structure；Second permanent magnet of the stator unit of 12 or more even numbers respectively with the first permanent magnet of six groups or more even numbers, six groups or more even numbers corresponds；Axial corresponding first permanent magnet and the second permanent magnet polarity are on the contrary, when i.e. the first permanent magnet is the pole N, and axial corresponding second permanent magnet is the pole S therewith, and vice versa；Flow direction is axial；The power density parameter calculated with rated power is 5~6Kg/Kw.The present invention improves the power of motor while reducing motor quality, to achieve the purpose that improve power of motor density, reduces costs and realizes higher performance requirement.
Description
Technical field
The invention belongs to motor technology fields, and in particular to a kind of axial permanent magnetic motor.
Background technique
It is currently used for electric car, the motor technology key of electric airplane is high-specific-power, big output power.Existing biography
Motor unite due to structure limitation, power density is very low in high-power situation, is unable to satisfy electric car, electric airplane
Deng to the very high requirement of power density, therefore bottleneck is met in design of electrical motor.Rare-earth permanent-magnet electric machine and ac synchronous motor are opened
Closing reluctance motor is the main direction of development.Rare-earth permanent magnet motor efficiency highest in all motor, this is because excitation is adopted
With permanent magnet, without power consumption；Its magnetic flux density is high, high torque (HT) is obtained, so as to keep motor small in size and weight
Gently.
And wherein, axial permanent magnetic motor by its power density and in terms of advantage, even more become motor lead
The research hotspot in domain.This kind of motor gas-gap is in plane, and air-gap field is axially distributed.The First in the world of faraday's invention
Motor is exactly axial direction electric machine, is limited by material and technological level, axial permanent magnetic motor hereafter for quite a long time not
Can further it be developed.With the progress of science and technology, the improvement of new material and structure emerged in large numbers with technological level is passed
The problems such as power density existing for system column type motor is low, iron core utilization rate is low and cooling difficulty, can be in axial permanent magnetic electricity
Solution answer is found in machine.
Summary of the invention
There is provided a kind of to further decrease motor quality, raising power of motor and power of motor density, the present invention
Disc type axial flux motor.
A kind of disc type axial flux motor includes cricoid casing 4, stator 8, the first rotor 6, the second rotor 9 and shaft
5；The shaft 5 passes through the axial middle part of stator 8, and both ends rotation is set to casing 4；The first rotor 6,9 mirror of the second rotor to
Symmetric coaxial is set in the shaft 5 of 8 two sides of stator, and is rotated with shaft 5；
The stator 8 is the segmental structure without magnetic yoke, is made of the stator unit of 12 or more even numbers；The stator list
Member includes stator core 82, and the axial sides of stator core 82 are respectively equipped with the first pole shoe piece 81 and the second pole shoe piece 84, described
Coil windings 83 are arranged on stator core 82；Adjacent first pole shoe piece 81 and adjacent in the stator unit of 12 or more even numbers
Second pole shoe piece 84 is in turn connected to form cricoid stator 8 respectively；
The first rotor 6 is identical with the structure of the second rotor 9, is the improved double-deck Halbach structure；
The first rotor 6 includes the first permanent magnet of the first iron core backboard 65 and six groups or more even number；First iron core back
Plate 65 is discoid；Every group of first permanent magnet includes the first permanent magnets 61, the second permanent magnets 62 and third permanent magnets 63, constitutes and cuts
Face is in the L shape magnetic patch of L；Wherein the first permanent magnets 61 are connected with the radially staggered make-up of the second permanent magnets 62, the third permanent magnetism
The side that block 63 is located at 62 junction of the first permanent magnets 61 and the second permanent magnets is axial, and the first permanent magnet is made to form cross section in L
L shape magnetic patch；The first permanent magnets 61 and the second permanent magnets 62 of six groups or more even numbers make-up that interlocks form magnet ring, and the magnet ring is same
Axis is fixed at 65 one side of the first iron core backboard, and the third permanent magnets 63 in the L shape magnetic patch of six groups or more even numbers are evenly arranged on
At the circumferential edges of one iron core backboard, 65 one side；
Second rotor 9 includes the second permanent magnet of the second iron core backboard 95 and six groups or more even number；Every group second forever
Magnet includes the 4th permanent magnets 91, the 5th permanent magnets 92 and the 6th permanent magnets 93；
The stator unit of 12 or more even numbers respectively with the first permanent magnet of six groups or more even numbers, six groups or more even numbers
Second permanent magnet corresponds；Axial corresponding first permanent magnet and the second permanent magnet polarity are on the contrary, i.e. the first permanent magnet is the pole N
When, axial corresponding second permanent magnet is the pole S therewith, and vice versa；
The axial middle part of the casing 4 is coaxially fixed with casing 7, and the stator 8 is fixed in casing 4 by casing 7；
The flow direction of the disc type axial flux motor is that axially, the power density parameter with rated power calculating is
5~6Kg/Kw；
When work, coil windings 83, which are powered, generates magnetic field, and magnetic field generates work with the first permanent magnet, the second permanent magnet respectively
With；By constantly changing the energization direction of coil windings 83, the magnetic direction for generating coil windings 83 constantly changes, fixed in this way
The magnetic field that the magnetic field and the first rotor 6, the second rotor 9 that son 8 generates generate generates continuous interaction force, then generates continuous
Torque, make the first rotor 6, the second rotor 9 drive shaft 5 rotate.
The technical solution further limited is as follows:
The stator core 82 is fan-shaped flat bulk；The shape phase of the first pole shoe piece 81 and the second pole shoe piece 84
It together, is sector.
Through-hole, the second iron core back of second rotor 9 are offered in the middle part of first iron core backboard 65 of the first rotor 6
Dowel hole is offered in the middle part of plate 95；The first rotor 6 passes through the 4th of the first permanent magnets 61, the second permanent magnets 62 and the second rotor 9
Permanent magnets 91, the 5th permanent magnets 92 are connected to form a whole, and pass through dowel hole on the second iron core backboard 95 and key cooperation
Make to be fixed in shaft 5, through-hole empty set is in described sleeve pipe 7 on the first iron core backboard 65；Realize the first rotor 6 and the second rotor
9 rotate with shaft 5.
Described sleeve pipe 7 is fixed in casing 4 in cantilever-shaped, and is connected to the first face of casing 4, and the on the stator 7
The inward flange of the inward flange of one pole shoe piece 81 and the second pole shoe 84 is fixedly connected the cantilever end of casing 7；The one of the shaft 5
End is set in casing 7 by bearing, and the other end of shaft 5 is fixedly connected another then face of casing 4 by bearing.
Spacing between first permanent magnet or the second permanent magnet and 8 axial direction of stator forms air gap, and the outer circle of stator 8 is straight
When diameter is 100~300 ㎜, the air gap is 3~6 ㎜.
Heat release hole is laid on the circumference of the casing 4.
Advantageous effects of the invention embody in the following areas:
1. motor of the invention carries out innovation structure design and topology optimization design from stator, rotor, shell, make electricity
Machine quality is reduced to 10.4kg from original 15kg；Meanwhile the power of motor is improved, power of motor density is improved to reach
Purpose, reduce costs and realize higher performance requirement.
2. traditional power of motor density is all very low, 2.0kg/kw only up to be reached, this for electric helicopter, nobody
Machine, racing car etc. are a very big restriction for the development of the very high product of power density requirements, axial permanent magnetic electricity of the present invention
Machine is calculated with rated power, and power density parameter is 5~6Kg/Kw, can greatly be enhanced product performance and future development.
3. the rotor of the magneto can generate higher axial magnetic field using the improved double-deck Halbach structure,
And rearranged in space, in a limited space in further improve magnetic field strength, magnetic field strength improves 50%, and
The magnetic line of force can be led further to concentrate on internal magnetic field, in the case where structure size is certain, substantially increase the function of motor
Rate density, and rotor connects into an entirety, also enhances the intensity of rotor, is able to bear higher revolving speed.
Detailed description of the invention
Fig. 1 is shaft side figure of the present invention.
Fig. 2 is the axial sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram for removing casing and the first rotor.
Fig. 4 is the first rotor structural schematic diagram.
Fig. 5 is the second rotor structure schematic diagram.
Fig. 6 is stator structure schematic diagram.
Fig. 7 is that first end cover 2, casing 7 and stator 8 are coupled schematic diagram.
Fig. 8 is 62 mating connection schematic diagram of the first permanent magnets 61 and the second permanent magnets.
Fig. 9 is 92 mating connection schematic diagram of the 4th permanent magnets 91 and the 5th permanent magnets.
Figure 10 is that third permanent magnets 63 and the first iron core backboard 65 are coupled schematic diagram.
Figure 11 is that the 6th permanent magnets 93 and the second iron core backboard 95 are coupled schematic diagram.
Serial number in upper figure: 1- motor entirety, 2- first end cover, 3- second end cover, 4- casing, 5- rotary shaft, 6- rotor, 7-
Sleeve, 8- stator, 11- first bearing, 12- second bearing, the first permanent magnets of 61-, the second permanent magnets of 62-, 63- third permanent magnetism
Block, the first iron core of 65- backboard, the first pole shoe of 81-, 82- stator core, 83- coil windings, the second pole shoe of 84-, 91- the 4th are forever
Magnetic patch, the 5th permanent magnets of 92-, the 6th permanent magnets of 93-, 95- the second iron core backboard.
Specific embodiment
With reference to the accompanying drawing, the present invention is further described by embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of disc type axial flux motor includes cricoid casing 4, stator 8, the first rotor 6,
Two rotors 9 and shaft 5；Shaft 5 passes through the axial middle part of stator 8, and both ends rotation is set to casing 4；The first rotor 6, the second rotor 9
Mirror symmetry is same to be located in the shaft 5 of 8 two sides of stator, and is rotated with shaft 5.
Specific structure is improved as follows:
Referring to Fig. 6, stator 8 is the segmental structure without magnetic yoke, is made of 12 stator units.Each stator unit includes
Stator core 82, stator core 82 are fan-shaped flat bulk；First pole shoe piece 81 is identical with the shape of the second pole shoe piece 84, is
It is fan-shaped.First pole shoe piece 81 and the second pole shoe piece 84 are respectively arranged in the axial sides of stator core 82, on stator core 82 around
Equipped with coil windings 83.Adjacent first pole shoe piece 81 and adjacent second pole shoe piece 84 are sequentially connected respectively in 12 stator units
Form cricoid stator 8.
The first rotor 6 is identical with the structure of the second rotor 9, is the improved double-deck Halbach structure.
Referring to fig. 4, the first rotor 6 includes the first permanent magnet of the first iron core backboard 65 and six groups of even numbers.First iron core back
Plate 65 be it is discoid, middle part offers through-hole；Every group of first permanent magnet includes the first permanent magnets 61, the second permanent magnets 62 and third
Permanent magnets 63 constitute the L shape magnetic patch that section is in L；Referring to Fig. 8, wherein the radial direction of the first permanent magnets 61 and the second permanent magnets 62 is right
Button connects, and successively make-up forms magnet ring to the first permanent magnets 61 and the second permanent magnets 62 in six groups；Magnet ring is coaxially fixedly installed in
First iron core backboard, 65 one side；Third permanent magnets 63 are located at a side axle of 62 junction of the first permanent magnets 61 and the second permanent magnets
To and being fixedly installed at the circumferential edges of 65 one side of the first iron core backboard, six blocks of third permanent magnetism referring to Fig. 9, in six groups
Block 63 is evenly arranged at the circumferential edges of 65 one side of the first iron core backboard.
Referring to Fig. 5, Figure 10 and Figure 11, the second rotor 9 includes the second iron core backboard 95 and six group of second permanent magnet；Second turn
Dowel hole is offered in the middle part of second iron core backboard 95 of son 9；Every group of second permanent magnet includes the 4th permanent magnets 91, the 5th permanent magnets
92 and the 6th permanent magnets 93.
Referring to fig. 2, the first rotor 6 passes through the first permanent magnets 61, the 4th permanent magnets of the second permanent magnets 62 and the second rotor 9
91, the 5th permanent magnets 92 are connected to form a whole, and are fixed by the cooperation of dowel hole and key on the second iron core backboard 95
It is mounted in shaft 5, through-hole empty set realizes the first rotor 6 and the second rotor 9 with turning on casing 7 on the first iron core backboard 65
Axis 5 rotates.
Six stator units are corresponded with six group of first permanent magnet, six group of second permanent magnet respectively；Axial corresponding the
One permanent magnet and the second permanent magnet polarity are on the contrary, when i.e. the first permanent magnet is the pole N, and axial corresponding second permanent magnet is S therewith
Pole, vice versa.
Spacing between first permanent magnet or the second permanent magnet and 8 axial direction of stator forms air gap, and the outside diameter of stator 8 is
When 300 ㎜, air gap is 6 ㎜.
The flow direction of the disc type axial flux motor of the present embodiment is axially, to calculate its power density with rated power
Parameter is 5.5Kg/Kw.
Referring to Fig. 7, casing 7 is fixed in casing 4 in cantilever-shaped, and is connected to the first face of casing 4, and the on stator 7
The inward flange of the inward flange of one pole shoe piece 81 and the second pole shoe 84 is fixedly connected the cantilever end of casing 7；Referring to figs. 2 and 3,
One end of shaft 5 is installed in casing 7 by bearing, the other end of shaft 5 by bearing be fixedly connected casing 4 it is another then
Face.Heat release hole is uniformly offered on the circumference of casing 4, improves the heat dissipation effect of motor.
Detailed description are as follows for the working principle of the invention:
Referring to fig. 2, magnetic circuit of the invention are as follows: its S grade by the third permanent magnets 63 of the first rotor, pass through first forever
After magnetic patch 61, the second permanent magnets 62 and the 4th permanent magnets 61, the 5th permanent magnets 62, along bitrochanteric 6th permanent magnets 93 from
The pole S passes through the coil 83 of stator 8, into the N grade of the third permanent magnets 63 of the first rotor, completes circuit.
When work, coil windings 83, which are powered, generates magnetic field, and magnetic field generates work with the first permanent magnet 6, the second permanent magnet 9 respectively
With；By constantly changing the energization direction of coil windings 83, the magnetic direction for generating coil windings 83 constantly changes, fixed in this way
The magnetic field that the magnetic field and the first rotor 6, the second rotor 9 that son 8 generates generate generates continuous interaction force, then generates continuous
Torque, make the first rotor 6, the second rotor 9 drive shaft 5 rotate.
Claims (6)
1. a kind of disc type axial flux motor, including cricoid casing (4), stator (8), the first rotor (6), the second rotor
(9) and shaft (5)；The shaft (5) passes through the axial middle part of stator (8), and both ends rotation is set to casing (4)；Described first turn
Sub (6), the second rotor (9) mirror symmetry are same to be located in the shaft (5) of stator (8) two sides, and is rotated with shaft (5)；It is special
Sign is:
The stator (8) is the segmental structure without magnetic yoke, is made of the stator unit of 12 or more even numbers；The stator unit
Including stator core (82), the axial sides of stator core (82) are respectively equipped with the first pole shoe piece (81) and the second pole shoe piece
(84), coil windings (83) are arranged on the stator core (82)；Adjacent first pole in the stator unit of six groups or more even numbers
Boots piece (81) and adjacent second pole shoe piece (84) are in turn connected to form cricoid stator (8) respectively；
The first rotor (6) is identical with the structure of the second rotor (9), is the improved double-deck Halbach structure；
The first rotor (6) includes the first permanent magnet of the first iron core backboard (65) and six groups or more even number；First iron core back
Plate (65) is discoid；Every group of first permanent magnet includes the first permanent magnets (61), the second permanent magnets (62) and third permanent magnets
(63), the L shape magnetic patch that section is in L is constituted；Wherein the radially staggered make-up of the first permanent magnets (61) and the second permanent magnets (62) connects
It connects, the side that the third permanent magnets (63) are located at the first permanent magnets (61) and the second permanent magnets (62) junction is axial, makes the
One permanent magnet forms the L shape magnetic patch that cross section is in L；The first permanent magnets (61) and the second permanent magnets (62) friendship of six groups or more even numbers
Wrong make-up forms magnet ring, and the magnet ring is coaxially fixed at first iron core backboard (65) one side, the L shape magnetic of six groups or more even numbers
Third permanent magnets (63) in block are evenly arranged at the circumferential edges of first iron core backboard (65) one side；
Second rotor (9) includes the second permanent magnet of the second iron core backboard (95) and six groups or more even number；Every group second forever
Magnet includes the 4th permanent magnets (91), the 5th permanent magnets (92) and the 6th permanent magnets (93)；
The stator unit of 12 or more even numbers respectively with the first permanent magnet of six groups or more even numbers, six groups or more even numbers second
Permanent magnet corresponds；Axial corresponding first permanent magnet and the second permanent magnet polarity on the contrary, when i.e. the first permanent magnet is the pole N,
Axial corresponding second permanent magnet is the pole S therewith, and vice versa；
The axial middle part of the casing (4) is coaxially fixed with casing (7), and the stator (8) is fixed on casing by casing (7)
(4) in；
The flow direction of the disc type axial flux motor be it is axial, with the power density parameter that rated power calculates be 5~
6Kg/Kw；
When work, coil windings (83), which are powered, generates magnetic field, and magnetic field is acted on the first permanent magnet, the second permanent magnet generation respectively；
By constantly changing the energization direction of coil windings (83), the magnetic direction for generating coil windings (83) constantly changes, in this way
The magnetic field in magnetic field and the first rotor (6), the second rotor (9) generation that stator (8) generates generates continuous interaction force, then
Continuous torque is generated, the first rotor (6), the second rotor (9) is made to drive shaft (5) rotation.
2. a kind of disc type axial flux motor according to claim 1, it is characterised in that: the stator core (82) is
Fan-shaped flat bulk；The first pole shoe piece (81) is identical with the shape of the second pole shoe piece (84), is sector.
3. a kind of axial permanent magnetic motor according to claim 1, it is characterised in that: the first iron of the first rotor (6)
Through-hole is offered in the middle part of core backboard (65), offers dowel hole in the middle part of the second iron core backboard (95) of second rotor (9)；The
One rotor (6) passes through the first permanent magnets (61), the 4th permanent magnets (91) of the second permanent magnets (62) and the second rotor (9), the 5th
Permanent magnets (92) are connected to form a whole, and are made to be fixed on by dowel hole on the second iron core backboard (95) and key cooperation and be turned
On axis (5), through-hole empty set is on described sleeve pipe (7) on the first iron core backboard (65).
4. a kind of disc type axial flux motor according to claim 1, it is characterised in that: described sleeve pipe (7) is in cantilever
Shape is fixed in casing (4), and is connected to the first face of casing (4), the inner edge of the first pole shoe piece (81) on the stator (8)
The inward flange of edge and the second pole shoe piece (84) is fixedly connected the cantilever end of casing (7)；One end of the shaft (5) passes through bearing
In casing (7), the other end of shaft (5) is fixedly connected another then face of casing (4) by bearing.
5. a kind of disc type axial flux motor according to claim 1, it is characterised in that: first permanent magnet or
Spacing between two permanent magnets and stator (8) axial direction forms air gap, described when the outside diameter of stator (8) is 100~300mm
Air gap is 3~6mm.
6. a kind of disc type axial flux motor according to claim 1, it is characterised in that: the circumference of the casing (4)
On be laid with heat release hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060629.5A CN107769501B (en) | 2017-11-02 | 2017-11-02 | A kind of disc type axial flux motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060629.5A CN107769501B (en) | 2017-11-02 | 2017-11-02 | A kind of disc type axial flux motor |
Publications (2)
| Publication Number | Publication Date |
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| CN107769501A CN107769501A (en) | 2018-03-06 |
| CN107769501B true CN107769501B (en) | 2019-04-30 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019012844A1 (en) * | 2017-07-13 | 2019-01-17 | パナソニックＩｐマネジメント株式会社 | Hinge device and electric power system |
| CN109802542B (en) * | 2019-01-08 | 2022-02-25 | 南京一体科技有限公司 | Outer rotor disc type permanent magnet switched reluctance motor |
| CN109687614B (en) * | 2019-01-08 | 2021-09-14 | 南京一体科技有限公司 | Low-noise stable permanent magnet switched reluctance motor and manufacturing process and heat dissipation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000308318A (en) * | 1999-04-20 | 2000-11-02 | Sony Corp | Iron-core coil motor and disk drive |
| JP2003088068A (en) * | 2001-09-11 | 2003-03-20 | Kago Han | Side motor or generator |
| CN100474738C (en) * | 2006-03-27 | 2009-04-01 | 曾琼东 | Round disc type double rotor single turning DC brushless motor |
| JP2008295212A (en) * | 2007-05-24 | 2008-12-04 | Sumitomo Electric Ind Ltd | Axial motor and in-wheel motor |
| CN201499065U (en) * | 2009-08-06 | 2010-06-02 | 东南大学 | Single-stator and double-rotor variable magnetic flow permanent magnet brushless motor |
| JP2014230390A (en) * | 2013-05-22 | 2014-12-08 | 成田 憲治 | Permanent magnet type synchronous motor |
| CN105680649B (en) * | 2016-03-25 | 2018-08-28 | 南京工业大学 | Axial and radial magnetic flux doubly salient permanent magnet motor |
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