CN106787306B - A kind of modular switch magnetic flow disc type electric machine that is radially segmented - Google Patents
A kind of modular switch magnetic flow disc type electric machine that is radially segmented Download PDFInfo
- Publication number
- CN106787306B CN106787306B CN201710058469.4A CN201710058469A CN106787306B CN 106787306 B CN106787306 B CN 106787306B CN 201710058469 A CN201710058469 A CN 201710058469A CN 106787306 B CN106787306 B CN 106787306B
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- magnetic flow
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Classifications
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- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance 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
- 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
- H02K1/12—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
- 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
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- 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
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention discloses a kind of modular switch magnetic flow disc type electric machine of being radially segmented, and it includes rotor disk, two group rotor salient pole groups that the switch magnetic flow disc type electric machine, which includes: rotor structure, and two group rotor salient pole groups are staggered set angle in the circumferential；Stator structure includes two stator discs for being coaxially disposed and being radially segmented；Each stator disc includes k stator modules, and each stator modules include m stator unit and m link block；Each stator unit includes permanent magnet, first cascade section and the second stacked segment；Stator slot is offered in first cascade section and the second stacked segment；Winding construction is set in stator slot；Permanent magnet is arranged between first cascade section and the second stacked segment, and two sections of permanent magnet polarities of radial face are opposite in two stator discs；The angle and the cooperation of permanent magnet polarity distribution in two stator discs being circumferentially staggered by two group rotor salient pole groups, the odd harmonic in cogging torque and torque ripple is reduced under the premise of guaranteeing average output torque, weakens the even-order harmonic in back-emf.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of modular switch magnetic flow disc type electricity that is radially segmented
Machine.
Background technique
In having slot motor, due to the interaction between permanent magnet and stator tooth socket, it is inevitably generated tooth socket and turns
Square causes torque ripple, brings vibration and noise.Thus, in the analysis design of high performance magneto, the suppression of cogging torque
System must be paid much attention to.The main method of cogging torque is inhibited to have the oblique pole of permanent magnet, pole embrace optimization, permanent magnetism magnetic pole inclined
It moves, permanent magnet pole is away from adjustment, skewed slot etc.；For traditional surface-mount type axial permanent magnetic motor, changes magnet structure form and more hold
Easily realize.
In recent years, disc-type permanent magnet motor is got over because the advantages that its is compact-sized, high-efficient, power density is big obtains researcher
Carry out more concerns.The advantages of switch magnetic flow motor is due to high torque density, high power density, with compact-sized disc type electricity
Machine combines and forms switch magnetic flow disc type electric machine, is particularly suitable for requiring the occasion of high torque density and spaces compact.Due to switching magnetic
The intrinsic double-salient-pole structure of three-way motor and high magnet accumulating cap, cogging torque and torque ripple are especially apparent.For switch magnetic flow
Disc type electric machine, weakening cogging torque using skewed slot undoubtedly will increase motor manufacturing cost；By choosing suitable magnet structure
Form can be largely fulfilled the inhibition to cogging torque, but counter electromotive force and average torque have to a certain degree simultaneously
Reduction.
Summary of the invention
The object of the present invention is to provide a kind of modular switch magnetic flow disc type electric machine that is radially segmented is convex by two group rotors
The cooperation of the angle that pole group is circumferentially staggered and permanent magnet polarity distribution in two stator units is guaranteeing average output torque premise
Decline the odd harmonic in Low gullet torque and torque ripple, weakens the even-order harmonic in back-emf.
To achieve the above object, the present invention provides following schemes:
A kind of modular switch magnetic flow disc type electric machine that is radially segmented, the switch magnetic flow disc type electric machine includes rotor structure
2, stator structure 1 and winding construction；Wherein,
The rotor structure 2 includes rotor disk 2-3, two group rotor salient pole groups, the coaxial arrangement of rotor with salient pole group described in two groups
And radially segmentation is fixed on the rotor disk 2-3, and rotor with salient pole group described in two groups is staggered set angle in the circumferential；
The stator structure 1 includes two stator discs for being coaxially disposed and being radially segmented, and each stator disc corresponds to institute
State the setting of rotor with salient pole group；
Each stator disc respectively includes k stator modules, each stator modules encompass circle；Each stator
The link block 1-4 that module respectively includes m stator unit 1-1 and is arranged between the two neighboring stator unit 1-1；Its
In, k is the integer more than or equal to 1, and m is the integer more than or equal to 3；
Each stator unit 1-1 includes permanent magnet 1-5, two first cascade section 1-2 and is arranged at two described first
The second stacked segment 1-3 between stacked segment 1-2；A stator slot 1-6, the second layer are offered on the first cascade section 1-2
It is opened up on folded section 1-3 there are two stator slot 1-6, and the opening of each stator slot 1-6 is towards the rotor with salient pole group；It is described forever
Magnet 1-5 is arranged between the first cascade section 1-2 and the second stacked segment 1-3, radial face in two stator discs
The polarity of two sections of permanent magnet 1-5 is opposite；
The winding construction includes k winding module, and each winding module includes m winding element 3, m it is described around
Group unit 3 is specially m phase winding；Each winding element 3 respectively includes two winding coils；Described two winding coil difference
It is embedded in four stator slot 1-6 in each stator disc on corresponding stator unit.
Optionally, rotor with salient pole group described in two groups respectively includes the evenly arranged rotor with salient pole of multiple circumferential directions, the setting
Angle is the half of central angle corresponding to the pole span of the rotor with salient pole.
Optionally, the magnetizing direction of two sections of permanent magnet 1-5 in the same stator unit 1-1 circumferentially is on the contrary, and institute
It is opposite to state the magnetizing direction of two sections of permanent magnet 1-5 of the two sides link block 1-4 circumferentially.
Optionally, the area equation of two stator discs in the same stator structure 1.
Optionally, the material of the permanent magnet 1-5 is at least one of neodymium iron boron, SmCo and ferrite.
Optionally, the material of the link block 1-4 is non-magnet material.
Optionally, the switch magnetic flow disc type electric machine is extended to dual-rotor structure, and wherein the quantity of rotor structure 2 is two
A, the quantity of the stator structure 1 is one, and two rotor structures 2 are symmetrical arranged about the stator structure 1.
Optionally, the switch magnetic flow disc type electric machine is extended to double-stator structure, and wherein the quantity of stator structure 1 is two
A, the quantity of the rotor structure 2 is one, and two stator structures 1 are symmetrical arranged about the rotor structure 2.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The present invention be radially segmented modular switch magnetic flow disc type electric machine include coaxial arrangement, be radially segmented two groups turn
Sub- salient pole and two stator discs are circumferentially staggered what angle was distributed with permanent magnet polarity in two stator discs by two group rotor salient poles
Cooperation reduces the odd harmonic in cogging torque and torque ripple under the premise of guaranteeing average output torque, weakens in back-emf
Even-order harmonic；By the way that stator unit is divided into three stator modules, it can effectively reduce the flux coupled between every phase winding, mentioned
High fault-tolerant ability.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic perspective view one of the modular switch magnetic flow disc type electric machine of present invention radial segments；
Fig. 2 is the schematic perspective view two of the modular switch magnetic flow disc type electric machine of present invention radial segments；
Fig. 3 is the main view of rotor structure；
Fig. 4 is the schematic perspective view of rotor structure；
Fig. 5 is the main view of stator structure；
Fig. 6 is the schematic perspective view of stator structure；
Fig. 7 be stator structure in conjunction with winding after main view；
Fig. 8 be stator structure in conjunction with winding after rearview.
Detailed description of the invention
1 stator unit 1-1 of stator structure
First lamination section 1-2 the second lamination section 1-3
Link block 1-4 permanent magnet 1-5
The default sub-disk 1-7 of stator slot 1-6
External stator disk 1-8 rotor structure 2
Internal rotor salient pole 2-1 outer rotor salient pole 2-2
Rotor disk 2-3 winding element 3
First the second winding coil of winding coil 3-1 3-2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of modular switch magnetic flow disc type electric machines that is radially segmented, including be coaxially disposed,
Be radially segmented the two group rotor salient poles and two stator discs of setting, is circumferentially staggered angle and two stators by two group rotor salient poles
The cooperation that permanent magnet polarity is distributed in disk reduces the surprise in cogging torque and torque ripple under the premise of guaranteeing average output torque
Subharmonic weakens the even-order harmonic in back-emf；By the way that stator disc is divided into k stator modules, and then stator modules are divided into m
A stator unit can effectively reduce the flux coupled between every phase winding, improve fault-tolerant ability.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
The present invention is described in detail with k=1 for m=3；As depicted in figs. 1 and 2, radial segments modularization of the present invention
Switch magnetic flow disc type electric machine include rotor structure 2, stator structure 1 and winding construction.
Wherein, as shown in Figure 3 and Figure 4, the rotor structure 2 includes that rotor disk 2-3, internal rotor salient pole group and outer rotor are convex
Pole group, the internal rotor salient pole group and outer rotor salient pole group are coaxially disposed and are radially segmented and are fixed on the rotor disk 2-3
On.
The internal rotor salient pole group includes the evenly arranged internal rotor salient pole 2-1 of multiple circumferential directions, the outer rotor salient pole group
In the circumferential including the evenly arranged outer rotor salient pole 2-2 of multiple circumferential directions, the internal rotor salient pole 2-1 and outer rotor salient pole 2-2
Be staggered set angle.Preferably, the set angle for the outer rotor salient pole 2-2 (or internal rotor salient pole 2-1) pole span institute
The half of corresponding central angle.
As shown in figure 5, the stator structure 1 includes the default sub-disk 1-7 and external stator for being coaxially disposed and being radially segmented
Disk 1-8, the external stator disk 1-8 correspond to the outer rotor salient pole group setting, described to state default sub-disk 1-7 and correspond to the internal rotor
(as shown in Figure 1) is arranged in salient pole group.The area phase of default sub-disk 1-7 and external stator disk 1-8 in the same stator structure 1
Deng.
Further, the external stator disk 1-8 and the default sub-disk 1-7 respectively include k stator modules, each described fixed
Submodule encompasses circle；Each stator modules respectively include m stator unit 1-1 and are arranged two neighboring described fixed
Link block 1-4 between subelement 1-1；Wherein, k is the integer more than or equal to 1, and m is the integer more than or equal to 3.In embodiment
In, k 1, m 3.
As shown in Figure 5 and Figure 6, the external stator disk 1-8 and the default sub-disk 1-7 respectively include a stator modules,
The stator modules include three stator unit 1-1 and the link block that is arranged between the two neighboring stator unit 1-1
1-4, three stator units (1-4) encompass circle.Wherein, the material of the link block 1-4 is non-magnet material.
As shown in fig. 6, each stator unit 1-1 includes that permanent magnet 1-5, two first cascade section 1-2 and setting exist
The second stacked segment 1-3 between two first cascade section 1-2.A stator slot 1- is offered on the first cascade section 1-2
It is opened up on 6, the second stacked segment 1-3 there are two stator slot 1-6, and the opening of each stator slot 1-6 is towards the rotor
Salient pole group；The setting winding construction 3 in each stator slot 1-6.The shape of the first cascade section 1-2 is U-typed, " V "
Type or " C " type；The shape of the second stacked segment 1-3 is " E " type or " W " type, but is not limited thereto.
The permanent magnet 1-5 is arranged between the first cascade section 1-2 and the second stacked segment 1-3.Further, same
Two sections of permanent magnet 1-5 in stator unit 1-1 magnetizing direction circumferentially on the contrary, and the two sides the link block 1-4 two
The magnetizing direction of section permanent magnet 1-5 circumferentially is opposite.Default sub-disk 1-7 and external stator disk 1-8 central diameter in same stator structure 1
To the polarity of two sections of permanent magnet 1-5 of face on the contrary, being circumferentially staggered angular compliance with the rotor with salient pole group, the present invention can be reduced
Odd harmonic content in the cogging torque and torque ripple of radial segments modular switch magnetic flux disc type electric machine weakens back-emf
Middle even harmonic content.
Further, the winding construction includes k winding module, and each winding module includes m winding element 3, m
A winding element 3 is specially m phase winding；Each winding element 3 respectively includes two winding coils；Described two windings
Coil is respectively embedded in four stator slot 1-6 in each stator disc on corresponding stator unit.In the present embodiment
In, k 1, m 3.
As shown in Figure 7 and Figure 8, the winding construction includes a winding module, and the winding module includes three windings
Unit 3 respectively represents A phase winding, B phase winding, C phase winding；Each winding element includes the first winding coil 3-1 and
Two winding coil 3-2, the first winding coil 3-1 and the second winding coil 3-2 in every phase winding unit are successively embedding respectively
Enter into the default sub-disk 1-7, external stator disk 1-8 in a corresponding stator unit 1-1 in four stator slot 1-6.
It is radially segmented in modular switch magnetic flow disc type electric machine in the present invention, the stator structure 1 and rotor structure 2
Quantity can be one, to form motor as shown in Figure 1；The quantity of the rotor structure 2 can also be two, the stator knot
The quantity of structure 1 is one, and two rotor structures 2 are symmetrical arranged about the stator structure 1, to form birotor disk
Formula motor；The quantity of the stator structure 1 is also two, and the quantity of the rotor structure 2 is one, and two stator knots
Structure 1 is symmetrical arranged about the rotor structure 2, forms bimorph transducer disc type electric machine.
The modular switch magnetic flow disc-type permanent magnet motor of present invention radial segments, by the way that rotor is radially divided into internal rotor
Salient pole group and outer rotor salient pole group, and internal rotor salient pole be staggered in the circumferential with outer rotor salient pole internal rotor salient pole pole span it is corresponding circle
The half at heart angle；Stator is radially divided into default sub-disk and external stator disk, two sections of permanent magnet polarities of radial face are opposite；
The cooperation of permanent magnet polarity distribution in angle and inside and outside stator disc is rotated by rotor with salient pole, it can be in the premise for guaranteeing output torque
The lower odd harmonic reduced in modular switch magnetic flux disc type electric machine cogging torque and torque ripple, weakens the even in back-emf
Harmonic wave.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (8)
1. a kind of modular switch magnetic flow disc type electric machine that is radially segmented, which is characterized in that the switch magnetic flow disc type electric machine packet
Include rotor structure (2), stator structure (1) and winding construction；Wherein,
The rotor structure (2) includes rotor disk (2-3), two group rotor salient pole groups, the coaxial arrangement of rotor with salient pole group described in two groups
And radially segmentation is fixed on the rotor disk (2-3), and rotor with salient pole group described in two groups is staggered set angle in the circumferential；
The stator structure (1) includes two stator discs for being coaxially disposed and being radially segmented, described in each stator disc correspondence
The setting of rotor with salient pole group；
Each stator disc respectively includes k stator modules, and each stator modules encompass circle；Each stator modules point
It Bao Kuo not the link block (1-4) of m stator unit (1-1) and setting between the two neighboring stator unit (1-1)；Its
In, k is the integer more than or equal to 1, and m is the integer more than or equal to 3；
Each stator unit (1-1) includes permanent magnet (1-5), two first cascade sections (1-2) and setting at two described the
The second stacked segment (1-3) between one stacked segment (1-2)；A stator slot (1-6) is offered on the first cascade section (1-2),
There are two opening up on second stacked segment (1-3) stator slot (1-6), and the opening of each stator slot (1-6) is described in
Rotor with salient pole group；The permanent magnet (1-5) is arranged between the first cascade section (1-2) and the second stacked segment (1-3), and two
The polarity of two sections of permanent magnets (1-5) of radial face is opposite in the stator disc；
The winding construction includes k winding module, and each winding module includes m winding element (3), the m windings
Unit (3) is specially m phase winding；Each winding element (3) respectively includes two winding coils；Described two winding coils point
It is not embedded in four stator slots (1-6) in each stator disc on corresponding stator unit Nei.
2. the modular switch magnetic flow disc type electric machine according to claim 1 that is radially segmented, which is characterized in that described in two groups
Rotor with salient pole group respectively includes the evenly arranged rotor with salient pole of multiple circumferential directions, and the set angle is the pole span of the rotor with salient pole
The half of corresponding central angle.
3. the modular switch magnetic flow disc type electric machine according to claim 1 that is radially segmented, which is characterized in that same described
Two sections of permanent magnets (1-5) in stator unit (1-1) magnetizing directions circumferentially is on the contrary, and two sides the link block (1-4)
The magnetizing direction of two sections of permanent magnets (1-5) circumferentially is opposite.
4. the modular switch magnetic flow disc type electric machine according to claim 1 that is radially segmented, which is characterized in that same described
The area equation of two stator discs in stator structure (1).
5. the modular switch magnetic flow disc type electric machine according to claim 1 that is radially segmented, which is characterized in that the permanent magnetism
The material of body (1-5) is at least one of neodymium iron boron, SmCo and ferrite.
6. the modular switch magnetic flow disc type electric machine according to claim 1 that is radially segmented, which is characterized in that the connection
The material of block (1-4) is non-magnet material.
7. the modular switch magnetic flow disc type electric machine according to claim 1 to 6 that is radially segmented, feature exist
In, the switch magnetic flow disc type electric machine is extended to dual-rotor structure, wherein the quantity of the rotor structure (2) is two, it is described
The quantity of stator structure (1) is one, and two rotor structures (2) are symmetrical arranged about the stator structure (1).
8. the modular switch magnetic flow disc type electric machine according to claim 1 to 6 that is radially segmented, feature exist
In, the switch magnetic flow disc type electric machine is extended to double-stator structure, wherein the quantity of the stator structure (1) is two, it is described
The quantity of rotor structure (2) is one, and two stator structures (1) are symmetrical arranged about the rotor structure (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710058469.4A CN106787306B (en) | 2017-01-23 | 2017-01-23 | A kind of modular switch magnetic flow disc type electric machine that is radially segmented |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710058469.4A CN106787306B (en) | 2017-01-23 | 2017-01-23 | A kind of modular switch magnetic flow disc type electric machine that is radially segmented |
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| CN106787306B true CN106787306B (en) | 2019-02-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968539B (en) * | 2017-12-19 | 2020-06-26 | 哈尔滨理工大学 | Permanent magnet segmented switch flux linkage motor |
| CN110380533A (en) * | 2019-06-21 | 2019-10-25 | 侯唯敏 | A kind of motor and the equipment including the motor |
| CN112087114B (en) * | 2020-08-31 | 2021-08-03 | 江苏大学 | Hybrid excitation double-stator switched reluctance motor |
| CN113178963B (en) * | 2021-05-20 | 2022-10-14 | 河北工业大学 | Radial and axial double-modularization magnetic flux switching motor |
| CN113364162B (en) * | 2021-06-21 | 2022-04-15 | 湖州小为科技有限公司 | Stator structure, rotor structure, ultrathin motor and stator forming process |
| CN113659789B (en) * | 2021-08-25 | 2022-08-26 | 东南大学 | Internal and external stator axial magnetic field magnetic flux switching type hybrid permanent magnet motor |
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| US7466058B2 (en) * | 2005-06-29 | 2008-12-16 | Eocycle Technologies, Inc. | Transverse flux electrical machine with segmented core stator |
| CN105356701A (en) * | 2015-11-11 | 2016-02-24 | 南京理工大学 | Radial-distribution three phase disk type transverse flux permanently-magnetic generator |
| CN105529843A (en) * | 2016-01-06 | 2016-04-27 | 北京理工大学 | Modular switch magnetic flow torque motor |
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2017
- 2017-01-23 CN CN201710058469.4A patent/CN106787306B/en active Active
Patent Citations (3)
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|---|---|---|---|---|
| US7466058B2 (en) * | 2005-06-29 | 2008-12-16 | Eocycle Technologies, Inc. | Transverse flux electrical machine with segmented core stator |
| CN105356701A (en) * | 2015-11-11 | 2016-02-24 | 南京理工大学 | Radial-distribution three phase disk type transverse flux permanently-magnetic generator |
| CN105529843A (en) * | 2016-01-06 | 2016-04-27 | 北京理工大学 | Modular switch magnetic flow torque motor |
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