CN108448847A - A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system - Google Patents

A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system Download PDF

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Publication number
CN108448847A
CN108448847A CN201810232632.9A CN201810232632A CN108448847A CN 108448847 A CN108448847 A CN 108448847A CN 201810232632 A CN201810232632 A CN 201810232632A CN 108448847 A CN108448847 A CN 108448847A
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CN
China
Prior art keywords
rotor
stator
motor
modulation
magnetic
Prior art date
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Pending
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CN201810232632.9A
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Chinese (zh)
Inventor
徐奇伟
孙静
王文娟
毛韫琦
辛欣欣
杨云
王孚康
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Chongqing University
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Chongqing University
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Priority to CN201810232632.9A priority Critical patent/CN108448847A/en
Publication of CN108448847A publication Critical patent/CN108448847A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
    • 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
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/143—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple generators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The invention discloses a kind of brushless double-stator double-rotor motors of radial magnetic field modulation system, it is followed successively by inner stator from inside to outside（4）, modulation rotor（5）, p-m rotor（3）And external stator（2）, inner stator（4）With modulation rotor（5）Between be the first air gap（12）, modulate rotor（5）With p-m rotor（3）Between be interstice（11）, it is third air gap between p-m rotor and external stator（10）；External stator（2）With outer layer permanent magnet（3‑1）Constitute the outer motor of permanent-magnet synchronous（8）；Inner stator（4）, modulation rotor（5）With internal layer permanent magnet（3‑2）Constitute motor in magnetic-field modulation-type（9）.It is an advantage of the invention that：Motor brushless, slip ring structure, improve the reliability of motor work, while being conducive to winding heat dissipation and improving rotor dynamic balancing performance, increase working efficiency；Improve power density, torque density, maximum power and the torque capacity fan-out capability of motor.

Description

A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system
Technical field
The invention belongs to field of hybrid electric vehicles, and in particular to a kind of bis- turns of brushless bimorph transducer-of radial magnetic field modulation system Sub-motor.
Background technology
The internal combustion engine of hybrid electric vehicle frequently changes operating point because being influenced by load behavior, and not continue working exists High efficiency point, keeps engine operating efficiency relatively low, and energy consumption is more, can solve this using composite construction double-rotor machine and ask Topic.
Composite construction double-rotor machine uses brush, slip ring mechanism to be presented to the winding of rotation using there is brush electric machine structure Electricity, causes that the internal rotor heating in winding of rotation is serious, reliability of system reduces, and the rotary part dynamic balancing with winding is difficult to Ensure, constrains application of the composite construction double-rotor machine in hybrid power system.Therefore, composite construction double-rotor machine Non-brushing becomes the research hotspot in the field.
Chinese patent literature ZL 201010274160.7 disclosed a kind of brushless composite junction of magnetic field modulation type in 2011 Structure permanent magnet synchronous motor uses two motors or so arrangement to realize motor non-brushing：First stator, modulation ring and the first permanent magnetism Rotor constitutes brushless double-rotor machine；Second stator and the second p-m rotor form the second motor.Modulate rotor and internal combustion engine It is connected, as mechanical input port, the p-m rotor of the second motor is connected with hybrid electric vehicle main reducing gear, is exported as machinery Port.Without winding on the rotor, it is easy to cooling.But the patent the problem is that：Entire electric machine is by two motors It cascades, quality volume is larger, is unfavorable for vehicle installation, and reduce the power density of whole device, control process is more multiple It is miscellaneous；Structure is cumbersome, very high to processing technology requirement, and progress energy transmission can lose a part of efficiency between two motors.
Invention content
For problems of the prior art, the technical problems to be solved by the invention are just to provide a kind of radial magnetic field Modulation system is brushless bimorph transducer-double-rotor machine, motor brushless, the slip ring structure improve the reliability of motor work, have simultaneously It radiates conducive to winding and improves rotor dynamic balancing performance, increase working efficiency；Improve the power density of motor, torque density, most High-power and torque capacity fan-out capability is used as power coupling suitable for the multi-form hybrid electric vehicle of electromechanical energy conversion With distributor.
It is realized the technical problem to be solved by the present invention is to technical solution in this way, it includes motor casing, in electricity Casing internal is followed successively by inner stator, modulation rotor, p-m rotor and external stator, inner stator and modulation rotor from inside to outside Between be the first air gap, it is interstice to modulate between rotor and p-m rotor, is third air gap between p-m rotor and external stator；It is interior Stator is fastened on fixed iron block on motor casing, and double-layer three-phase is embedded in the slot of inner stator and concentrates armature winding, is P Pole；Single layer three-phase is placed in the slot of external stator and is distributed armature winding, is Q pole；Outer layer permanent magnet on p-m rotor and internal layer Permanent magnet is surface-mount type structure, and radially inside and outside layer is to magnetize in the same direction, and adjacent permanent magnet magnetizing direction is opposite；Modulate ring Rotor is made of N blocks magnetic inductive block and the non-magnetic block gap of N blocks；Inner stator number of poles P+ external stators number of poles Q=modulation rotor magnetic inductive block The number non-magnetic block number N of N+, external stator constitute the outer motor of permanent-magnet synchronous with outer layer permanent magnet；Inner stator, modulation rotor and internal layer Permanent magnet constitutes motor in magnetic-field modulation-type.
The solution have the advantages that：
1, the present invention uses the bimorph transducer and birotor of same radial structure, and one of rotor is using modulation ring structure.Two Independent armature winding is placed in a stator slot, by increasing the quantity of stator or rotor, air gap becomes multilayer from one layer, makes Electromagnetic torque collective effect caused by watt current on two sets of stator winding improves radial structure on output rotor Space availability ratio is equivalent to the performance of two motors synthesis, improves power of motor density and torque density, while the motor Maximum power and torque capacity fan-out capability also increase.
2, inner stator, modulation rotor and p-m rotor internal layer permanent magnet constitute motor in magnetic-field modulation-type in the present invention. Without winding on p-m rotor and modulation rotor, does not need electric brush slip ring mechanism and fed, be easy to cooling, simplify motor knot Structure solves electric brush slip ring structure in hybrid electric vehicle using caused reliability is low, needs the problems such as periodic maintenance.Together When, the magnetic gear transmission device realized with motor in magnetic-field modulation-type has compared to traditional mechanical gear without friction, shake Small, low noise, the advantage high without lubrication, reliability are moved, the working efficiency of whole system is improved.
3, the present invention is by changing inner stator, external stator winding connection to change the performance of motor.When vehicle travels Larger resistance is encountered in the process, so that motor is in low speed high torque state using inside and outside stator winding tandem working mode；When need Inside and outside stator winding is used to work independently mode when larger speed to improve hybrid electric vehicle travel speed.
Inner stator, external stator is set separately or cooperatively to radiate to improve radiating efficiency 4. the present invention can design radiation water channel, into One step improves the power density of the present invention.Meanwhile to solve the problems, such as that motor torque ripple caused by multilayer air gap is larger, this hair It is bright to use variable magnetization mode approach control permanent magnet magnetization pattern and the intensity of magnetization to reduce torque pulsation, meet hybrid power Vehicle traveling comfort and comfort under different operating modes.
Description of the drawings
The description of the drawings of the present invention is as follows：
Fig. 1 is the driving system structure figure that the present invention is applied to hybrid electric vehicle；
Fig. 2 is the sectional view of the present invention.
In figure：1. motor casing；2. external stator；3. p-m rotor；3-1. outer layer permanent magnets；3-2. internal layer permanent magnets；In 4. Stator；5. modulating rotor；5-1. magnetic inductive block；Non-magnetic piece of 5-2.；6. double-layer three-phase concentrates armature winding；7. single layer three-phase separate Cloth armature winding；8. the outer motor of permanent-magnet synchronous；9. motor in magnetic-field modulation-type；10. third air gap；11. interstice；12. the One air gap；13. internal combustion engine；14. accumulator；15. main reducing gear；16. fixing iron block.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
As depicted in figs. 1 and 2, the present invention includes motor casing 1, inside motor casing, is followed successively by inner stator 4, modulation from inside to outside Rotor 5, p-m rotor 3 and external stator 2, inner stator 4 and modulation rotor 5 between be the first air gap 12, modulation rotor 5 with forever It is interstice 11 between magnet rotor 3, is third air gap 10 between p-m rotor and external stator；Inner stator 4 is connected with fixed iron block 16 It is fixed on motor casing 1, double-layer three-phase is embedded in the slot of inner stator and concentrates armature winding 6, be P pole；It is put in the slot of external stator Single layer three-phase distribution armature winding 7 is set, is Q pole；Outer layer permanent magnet 3-1 and internal layer permanent magnet 3-2 on p-m rotor 3 are table Mounted structure, radially inside and outside layer are to magnetize in the same direction, and adjacent permanent magnet magnetizing direction is opposite；Rotor 5 is modulated by N blocks Non-magnetic piece of interval 5-2 of magnetic inductive block 5-1 and N block is constituted；Inner stator number of poles P+ external stators number of poles Q=modulation rotor magnetic conduction block number N + non-magnetic block number N, external stator 2 and outer layer permanent magnet 3-1 constitute the outer motor 8 of permanent-magnet synchronous, have torque regulatory function；It is default Son 4, modulation rotor 5 and internal layer permanent magnet 3-2 constitute motor 9 in magnetic-field modulation-type, have the function of rotational speed regulation.
Above-mentioned inner stator number of poles P is 8, and external stator number of poles Q is 22, modulates rotor magnetic conduction block number and non-magnetic block number N is equal It is 15.It is airspace that magnetic inductive block 5-1, which selects iron block, non-magnetic piece of 5-2,.
As shown in Figure 1, modulation rotor 5 and the internal combustion engine 13 of the present invention it is coaxial be connected, p-m rotor 3 passes through holding mechanism （It is made of brake and clutch）The main reducing gear 15 of connection hybrid power vehicle, the separation and engagement of clutch and brake are real The now different working modes of the hybrid power system.
The present invention operation principle be：
Present invention tool is placed electric in three-phase set in inner stator and external stator slot respectively there are two mechanical ports and two electrical ports Pivot winding, modulation rotor 5 are made of the iron block of magnetic conduction and non-magnetic airspace, and permeability magnetic material block number is equal to the first air gap The sum of with interstice field pole logarithm, changeable both sides air-gap permeance makes to generate the period in the first air gap and interstice The magnetic conductance of property significant changes.External stator and p-m rotor outer layer set of permanent magnets at permanent-magnet synchronous outside motor, there is torque to adjust Function；Inner stator, modulation rotor and p-m rotor internal layer set of permanent magnets at magnetic-field modulation-type in motor, there is rotational speed regulation Function.
For motor in magnetic-field modulation-type 9, magnetic field is by the internal layer permanent magnet in inner stator armature winding magnetic field, p-m rotor It is common to establish, and energy converting between mechanical is realized based on magnetic field modulation principle.According to " a kind of magnetic gear transmission device ", Du Shiqin Deng, electrotechnics journal, 2010,25 (9)：The record of P41-46, magnetic field modulation principle are magnetic conductances by being changed significantly to original Some inner stator armature fields and p-m rotor internal layer magnetic field of permanent magnet are modulated, to change magnetic in the air gap of modulation ring both sides Overtone order, amplitude and rotational speed of magnetic field, make in magnetic-field modulation-type motor interior stator armature magnetic field and p-m rotor internal layer forever Also energy conversion and transmission can be carried out when magnetic magnetic field difference number of pole-pairs and rotating speed.
P-m rotor internal layer magnetic field of permanent magnet by modulate rotor formed variation magnetic conductance, in air gap generate with it is default The modulation permanent magnetic field of sub- armature field identical number of poles and rotating speed, and generate constant turn with the interaction of inner stator armature field Square；Inner stator armature field, can be in the first air gap in generation and p-m rotor under the magnetic field modulation effect of modulation rotor The modulation armature field of layer permanent magnetic field identical number of poles and rotating speed, and generated with p-m rotor internal layer permanent magnet magnetic field interactions Constant torque is simultaneously transferred to p-m rotor with certain transmission ratio.The electromagnetic torque that the outer motor 8 of permanent-magnet synchronous generates is through third gas Gap is transferred to p-m rotor, and is transferred to permanent magnetism through magnetic field modulation effect with the torque of p-m rotor itself generation, inner stator and turns The superimposed common driving hybrid electric vehicle traveling of torque of son.
According to different road conditions load regulation external stator armature field sizes to change output torque size, it is dynamic to meet mixing Driveability of the power vehicle under different operating modes.Inner stator armature field rotating speed is total to by modulation rotor rotating speed and p-m rotor rotating speed With decision, by changing inner stator armature field rotating speed to adjust speed discrepancy between modulation rotor and p-m rotor, to realize The independent operating of two rotor speed realizes the speed-regulating function of the present invention.
Modulation rotor with internal combustion engine 13 is coaxial is connected, p-m rotor passes through holding mechanism（By brake and clutch group At）Interior main reducing gear 15 is connected, the driving system of hybrid vehicle is realized in the separation and engagement of clutch and brake Different working modes.By carrying out Proper Match with internal combustion engine, accumulator 14, the distribution type hybrid electric vehicle of complete set is constituted Drive system, the present invention can realize the multiple functions such as contiuously variable transmission, starter, generator and power synthesis device, control Flexibly, there is apparent advantage in power density, radiating efficiency, torque performance and energy transmission efficiency etc..
The specific works pattern of driving system of hybrid vehicle has electric-only mode, operating mode of internal combustion engine and hybrid power Pattern：
When hybrid electric vehicle works in the road conditions of less demanding to output torque, if permanent-magnet synchronous 8 output torque of outer motor is full Foot driving requires, and pure electric vehicle driving can be used.Battery capacity is sufficient in accumulator 14 at this time, closes internal combustion engine 13 and magnetic field modulation Motor 9 in formula utilize motor outside accumulator driving permanent-magnet synchronous.When motor output torque is unsatisfactory for driving requirement outside permanent-magnet synchronous When, start torque needed for motor compensating in magnetic-field modulation-type.Under this pattern, the braking energy feedback of two motors can be accumulator Charging.
Operating mode of internal combustion engine, which can be divided into parking startup internal combustion engine and driving process, starts internal combustion engine.When vehicle stops When, it stops operating since p-m rotor connects load, modulation ring is driven by controlling 9 armature field of motor in magnetic-field modulation-type Rotor rotates, and then starts internal combustion engine 13.When automobilism, the electromagnetism of a part of electromagnetic power generation of inner stator armature winding Torque is transferred to modulation rotor through magnetic field modulation and directly drives internal combustion engine 13, and another part electromagnetic power is folded with battery power Add and be transferred to external stator, and is transferred to p-m rotor jointly through third air gap with external stator electromagnetic torque and drives vehicle.If at this time P-m rotor output torque is more than demand torque, then it is interior to start can be transferred to modulation rotor through interstice for extra torque Combustion engine.
Under hybrid mode, it is direct that the mechanical output part of internal combustion engine output through interstice is transferred to p-m rotor Drive hybrid electric vehicle, another part motor 9 in magnetic-field modulation-type is converted into electric energy, and to be transmitted to outside permanent-magnet synchronous motor 8 common P-m rotor is acted on, or is charged for it in accumulator electric-quantity deficiency.When motor is operated in motoring condition outside permanent-magnet synchronous, electricity The total output torque of machine is that modulated rotor is transferred to the torque of p-m rotor and the outer motor of permanent-magnet synchronous is transferred to p-m rotor Torque sum of the two；Accumulator output power is the generated output of motor and the outer motor of permanent-magnet synchronous in magnetic-field modulation-type at this time Output power algebraic step, can pass through and change the sizes of two power and change the charging and discharging state of accumulator.When outside permanent-magnet synchronous Motor is operated in generating state, and two motors are jointly to charge the battery at this time.
To reduce the torque pulsation of the present invention, meet hybrid electric vehicle under different operating modes traveling comfort with it is comfortable Property, change the magnetization pattern and the intensity of magnetization of p-m rotor both sides permanent magnet using variable magnetization pattern principle.Utilize permanent magnet Demagnetization characteristic so that Operating Point of Permanent Magnet is run on by controlling the amplitude and angle of inside and outside stator armature winding magnetizing current Below knee point and then demagnetization phenomenon is generated, changes the size and waveform of permanent magnet local magnetized, realizes arbitrary magnetization pattern.
Compared with the magnetic field modulation type brushless composite structure permanent magnet synchronous motor of background technology, the present invention using bimorph transducer and Dual-rotor structure places independent armature winding along same radial arrangement in inner stator, external stator slot, two sets of stators Electromagnetic torque collective effect caused by watt current on winding is exported on p-m rotor 3, improves motor radial structure Space availability ratio, be equivalent to two motors（The outer motor of permanent-magnet synchronous and motor in magnetic-field modulation-type）The performance of synthesis, thus The present invention has higher power density and torque density, while the maximum power of the present invention and torque capacity fan-out capability also have It is improved.By changing inner stator, in external stator slot winding connection type, can be improved torque and the rotating speed of hybrid electric vehicle with Adapt to different road conditions demands.Without winding on the p-m rotor and modulation rotor of the present invention, it is easy to cooling, does not need brush cunning Ring mechanism is fed, and solves electric brush slip ring structure in hybrid electric vehicle using caused reliability is low, need to periodically tie up The problems such as shield, has the advantages that, without rubbing, shaking small, low noise, high without lubrication, reliability, whole system can be effectively improved Working efficiency.The mechanical energy of internal combustion engine input is only transmitted and is converted between a motor, and unnecessary loss is reduced, and is improved The efficiency of system.Radiation water channel, which can be designed, makes inside and outside stator separately or cooperatively radiate to improve radiating efficiency, further changes It is apt to the power density of entire electric machine.
The inner stator of the present invention and the connection type of external stator double winding can be divided into Series FPB and parallel FPB.When inside and outside Inside and outside stator winding axis overlaps when two stator winding tandem workings, and the number of turns that is often in series at this time increases, the outer stator of motor The induced electromotive force that armature winding generates is the sum of the electromotive force that double winding is inducted so that third air-gap flux increases and then increases The electromagnetic torque for adding p-m rotor to export.When inside and outside two stator winding parallel operations, i.e. two sets of independent works of stator winding Make, the electromotive force of motor induction, which is relatively connected in series with, to be reduced, and the electromagnetic torque exported at this time is smaller, and the working speed of motor It can increase.

Claims (3)

1. a kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system, including motor casing（1）, it is characterized in that：In motor casing Inside is followed successively by inner stator from inside to outside（4）, modulation rotor（5）, p-m rotor（3）And external stator（2）, inner stator（4）With Modulate rotor（5）Between be the first air gap（12）, modulate rotor（5）With p-m rotor（3）Between be interstice（11）, permanent magnetism It is third air gap between rotor and external stator（10）；Inner stator（4）With fixed iron block（16）It is fastened on motor casing（1）On, it is interior Double-layer three-phase is embedded in the slot of stator concentrates armature winding（6）, it is P pole；Single layer three-phase is placed in external stator slot is distributed armature Winding（7）, it is Q pole；P-m rotor（3）On outer layer permanent magnet（3-1）With internal layer permanent magnet（3-2）For surface-mount type structure, Radially inside and outside layer is to magnetize in the same direction, and adjacent permanent magnet magnetizing direction is opposite；Modulate rotor（5）By N block magnetic inductive blocks （5-1）With non-magnetic piece of N blocks（5-2）Interval is constituted, inner stator number of poles P+ external stators number of poles Q=modulation rotor magnetic conduction block number N+ Non-magnetic block number N；External stator（2）With outer layer permanent magnet（3-1）Constitute the outer motor of permanent-magnet synchronous（8）；Inner stator（4）, modulation ring Rotor（5）With internal layer permanent magnet（3-2）Constitute motor in magnetic-field modulation-type（9）.
2. the brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system according to claim 1, it is characterized in that：In described Stator poles P is 8, and external stator number of poles Q is 22, and it is 15 to modulate rotor magnetic conduction block number and non-magnetic block number N.
3. the brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system according to claim 1 or 2, it is characterized in that：Modulation Rotor（5）With internal combustion engine（13）It is coaxial to be connected, p-m rotor（3）Main reducing gear is connected by holding mechanism（15）.
CN201810232632.9A 2018-03-21 2018-03-21 A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system Pending CN108448847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810232632.9A CN108448847A (en) 2018-03-21 2018-03-21 A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system

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Application Number Priority Date Filing Date Title
CN201810232632.9A CN108448847A (en) 2018-03-21 2018-03-21 A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978268A (en) * 2016-06-23 2016-09-28 扬州大学 Modulation type brushless permanent magnet dual-rotor motor for hybrid electric vehicle
CN106374701A (en) * 2016-09-12 2017-02-01 江苏大学 Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978268A (en) * 2016-06-23 2016-09-28 扬州大学 Modulation type brushless permanent magnet dual-rotor motor for hybrid electric vehicle
CN106374701A (en) * 2016-09-12 2017-02-01 江苏大学 Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array

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Application publication date: 20180824