CN106374701A - Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array - Google Patents
Magnetic field modulation-type double-rotor motor by using Halbach permanent magnet array Download PDFInfo
- Publication number
- CN106374701A CN106374701A CN201610817581.7A CN201610817581A CN106374701A CN 106374701 A CN106374701 A CN 106374701A CN 201610817581 A CN201610817581 A CN 201610817581A CN 106374701 A CN106374701 A CN 106374701A
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- China
- Prior art keywords
- rotor
- magnetic field
- modulation
- permanent magnet
- center roller
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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
-
- 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
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
Abstract
The invention provides a brushless double-rotor motor by using a Halbach permanent magnet array and a magnetic field modulation principle. The double-rotor motor comprises four layers which are an inner stator, a modulation ring rotor, an intermediate rotor and an outer stator in sequence from inside to outside in all; the inner stator, the modulation ring rotor and the intermediate rotor form an inner magnetic field modulation-type motor; the intermediate rotor and the outer stator form an outer permanent magnet synchronous motor; and the inner side and the outer side of the intermediate rotor are provided with Halbach array permanent magnets respectively. The modulation ring rotor is connected with an output shaft of an internal combustion engine; and the intermediate rotor is connected with the output shaft of the double-rotor motor. According to the double-rotor motor, the internal and external magnetic field coupling phenomenon of the double-rotor motor is reduced or even eliminated through the magnetic self-shielding characteristic of the Halbach array, the brushless target of the of an inner rotor of the double-rotor motor is achieved through a magnetic field modulation principle to improve the reliability of the motor, and the disadvantages caused by internal and external magnetic field coupling and a carbon brush slip ring are avoided.
Description
Technical field
The present invention relates to permagnetic synchronous motor field is and in particular to a kind of adopt halbach permanent magnet array and magnetic field modulation
The brushless double-rotor machine of principle.
Background technology
Supply growing tension with global energy, International Crude Oil is of flowing rhythm, the deterioration of the ecological environment, energy-conservation and environmental protection
Become the theme of global range.Electric automobile, hybrid vehicle and fuel cell car are with its energy-conservation, low-carbon (LC), environmental protection
Characteristic is persistently subject to countries in the world extensive concern.Based on prior art, the hybrid vehicle that oil is electrically coupled is as transitional product
Obtain very big development.So far, each big automaker in the world includes Toyota, general, Ford etc. in hybrid power side
The technology in face is gradually improved and ripe, and achieves industrialization.Hybrid power system is with Toyota's ths system and general at this stage
Ahs system is the most typical, and, primarily as the planetary transmission of power coupler, this mechanism can for their core component
Realize between internal combustion engine and motor speed coupling, torque coupling, optimize electromotor operation interval.However, the planet of this system
Gear structure is purely mechanic device, inevitably there is the deficiency of the aspects such as noise, efficiency, vibration, and needs periodically to enter
Row is safeguarded, its use cost is larger.
In recent years, a kind of it is suggested based on the double-rotor machine concept of electromagnetic energy transfer principle.Double-rotor machine conduct
Power coupler not only instead of planetary transmission for hybrid vehicle, and eliminate motor, electromotor, from
The parts such as clutch, greatly reduce complete vehicle quality, have not only saved space, and car load power density and energy transmission efficiency obtain
Arrive very big lifting.
The whole world is concentrated mainly on to the research of double-rotor machine and is applied to mix as dynamic coupling device at present
Power vehicle, but study still in the primary stage, complete technical system has not yet been formed, and the model machine poor-performing that experiment is developed is simultaneously
Practical application can not be met.Double-rotor machine has that power density is relatively low, torque ripple is larger, low speed torque is not big, weak magnetic
The problems such as raising speed ability, and, the use of electric brush slip ring reduces the reliability of motor, and meanwhile, radial topology structure leads to
Complicated electromagnetic coupling phenomena, increases the control difficulty to double-rotor machine.Chinese patent cn104377917a is based on magnetic field
Modulation principle proposes electromagnetic planetary gear power divider, and it is brushless that this kind of device achieves double-rotor machine by magnetic field modulation
Change, and the incorgruous arrangement in magnetic field is achieved by split-type structural and avoid coupling between inner and outer magnetic field, but axial dimension is excessive
It is unfavorable for arrangement.Inside and outside motor is integrated in radially by Chinese patent cn105375714a, and structure is compacter, but can not solve
Certainly magnetic coupling problem, inner and outer magnetic field coupling is serious, unfavorable to motor performance and control.
Content of the invention
For Shortcomings in prior art, the invention provides a kind of magnetic field modulation of employing halbach permanent magnet array
Type double-rotor machine, its object is to by halbach array have magnetic self-shileding characteristic decrease or even eliminate birotor electricity
Machine inner and outer magnetic field coupling phenomenon, and realizing double-rotor machine inner-rotor brushless by magnetic field modulation principle, to improve motor reliable
Property.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of magnetic field modulation type double-rotor machine of employing halbach permanent magnet array, include successively from inside to outside inner stator,
Modulation rotor, center roller and external stator；
Described modulation rotor, center roller are cylinder-like structure, modulation rotor and the center roller of one end open
The outer surface center of closing one end is respectively provided with input shaft and output shaft, and modulation rotor closes one end with center roller
Inner surface center is provided with groove, and modulation rotor is relative with the opening of center roller, modulation rotor insertion center roller
In, described inner stator be located at modulation rotor in axial location, and two ends respectively pass through roller bearings modulation rotor,
In the intermediate groove of center roller；
Described external stator is arranged on outside center roller, and two ends are arranged on modulation rotor by rolling bearing respectively
On input shaft, the output shaft of center roller；
Inner stator three-phase alternating current winding is wound with described inner stator, equipped with interior halbach array inside described center roller
Permanent magnet, equipped with outer halbach array permanent magnet outside described center roller, is wound with external stator three and intersects inside described external stator
Stream winding；
Magnetic field modulation type motor in described inner stator, modulation rotor, center roller composition；Described center roller, outer fixed
Son forms outer permagnetic synchronous motor.
Preferably, the input shaft of described modulation rotor is connected with internal combustion engine output shaft, the output shaft of described center roller
It is connected with double-rotor machine output shaft.
Preferably, described outer halbach array permanent magnet and interior halbach array permanent magnet are all using tile shape, permanent magnetism
The body magnetic field mode that magnetizes adopts two pieces 90 ° of every pole, three pieces 60 ° of every pole or every four pieces 45 ° of pole according to concrete permanent magnet pole logarithm.
Preferably, described modulation rotor is provided with modulation ring, and described modulation ring is by between n ferromagnet and n epoxy body
Every rearranging, described modulation ring magnetic inductive block unit number is n.
Preferably, described inner stator three-phase alternating current winding magnetic field number of pole-pairs is, magnetic field number of pole-pairs inside described center roller
For p2, its relation meets n=p1+p2.
Preferably, described inner stator three-phase alternating current winding magnetic field rotational speed omega 1, described center roller rotating speed is ω 2, described tune
Rotor rotational speed of magnetic field processed is ω 3, then
Preferably, described inner stator three-phase alternating current winding magnetic field electromagnetic torque is t1, described center roller magnetic field electromagnetism turns
Square is t2, and described modulation rotor magnetic field electromagnetic torque is t3, then
The present invention combines the performance characteristics of magnetic field modulation type motor and halbach motor, double compared to general structure
There is advantages below in rotor electric machine:
1. in rotor electric machine, motor adopts magnetic field modulation type electric machine structure, realizes double-rotor machine by magnetic field modulation principle
Non-brushing, it is to avoid, because using inevitable, long have that abrasion service life is short, operating temperature is relatively for electric brush slip ring
Height, the problems such as heat dissipation problem is serious.
2. motor radially integrated, compact conformation inside and outside double-rotor machine, it is to avoid the split type big problem that takes up room, has
Beneficial to arrangement.
3. double-rotor machine outer rotor adopts halbach array permanent magnet, is had according to halbach array magnetic self-shileding characteristic
Effect decreases inner and outer magnetic field and couples it is achieved that inside and outside motor independent control, simplifies motor control strategy.
4. double-rotor machine adopts halbach structure, on the one hand can obtain ideal sinusoidal air-gap field, another
Aspect effectively reduces leakage field and iron loss to improve electric efficiency so that double-rotor machine has more excellent output characteristics.
Brief description
Fig. 1 is halbach magnetic field modulation type double-rotor machine structural representation of the present invention.
Fig. 2 is halbach magnetic field modulation type double-rotor machine generalized section of the present invention.
Wherein: 1. inner stator；1-1. inner stator three-phase alternating current winding；2. modulate rotor；2-1. epoxy body；2-2. it is ferromagnetic
Body；3. center roller；Halbach permanent magnet in 3-1.；The outer halbach permanent magnet of 3-2.；4. external stator；4-1. external stator three-phase
Exchange winding；5. rolling bearing；6. air gap in；7. intermediate air gap；8. outer air gap.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
As shown in figure 1, using the magnetic field modulation type double-rotor machine of halbach permanent magnet array, including successively from inside to outside
Inner stator 1, modulation rotor 2, center roller 3 and external stator 4, described modulation rotor 2, center roller 3 are one end open
Cylinder-like structure, the outer surface center of modulation rotor 2 and center roller 3 closing one end is respectively provided with input shaft and defeated
Shaft, the inner surface center modulating rotor 2 with center roller 3 closing one end is provided with groove, modulation rotor 2 and centre
Relatively, in modulation rotor 2 insertion center roller 3, described inner stator 1 is located at axis position in modulation rotor 2 to the opening of rotor 3
Put, and two ends are supported on modulation rotor 2 by rolling bearing 5, in the intermediate groove of center roller 3 respectively.
Described external stator 1 is arranged on outside center roller 3, and two ends are arranged on modulation ring by rolling bearing 5 respectively and turn
On the input shaft of son 2, the output shaft of center roller 3.
Inner stator three-phase alternating current winding 1-1 is wound with described inner stator 1, described modulation rotor 2 is provided with modulation ring 2-
1, described modulation ring 2-1 is spaced by 2-2 and n epoxy body 2-1 of n ferromagnet and forms, described modulation ring 2-1 magnetic inductive block list
First number is n.
As shown in Fig. 2 equipped with interior halbach array permanent magnet 3-1 inside described center roller 3, outside described center roller 3
Side equipped with outer halbach array permanent magnet 3-2, described outer halbach array permanent magnet 3-2 and interior halbach array permanent magnet
All using tile shape, outer halbach permanent magnet 3-2 is along the circumferential direction evenly arranged in the outside of center roller 3 to 3-1, using every
The 60 ° of modes of magnetizing in three pieces of pole make permanent magnet contact center roller 3 side field weakening, strengthen near external stator 4 side magnetic field；Interior
Halbach permanent magnet 3-1 is along the circumferential direction evenly arranged in the inside of center roller 3, is made using the three pieces of 60 ° of magnetizing directions in every pole
Permanent magnet contacts center roller 3 side field weakening, strengthens near inner stator 1 side magnetic field.Wherein, magnetize in inside and outside halbach magnetic field
Mode can be respectively adopted the sides such as two pieces 90 ° of every pole, three pieces 60 ° of every pole or every four pieces 45 ° of pole according to concrete permanent magnet pole logarithm
Formula.
It is wound with external stator three-phase alternating current winding 4-1, described inner stator 1, modulation rotor 2, centre inside described external stator 4
Rotor 3 forms interior magnetic field modulation type motor, and described center roller 3, external stator 4 form outer permagnetic synchronous motor.
The input shaft of described modulation rotor 2 is connected with internal combustion engine output shaft, and the output shaft of center roller 3 is electric with birotor
Machine output shaft is connected, and due to the power dividing effect of magnetic field modulation type motor, input power divides two-way to transmit, the modulated ring in a road
Rotor 2, intermediate air gap 7, center roller 3 are directly delivered to the outfan of double-rotor machine, the modulated rotor in a road 2, interior gas
Gap 6, inner stator three-phase alternating current winding 1-1, inner stator 1 are delivered to energy storage device and store.
The output of double-rotor machine outfan, except the above-mentioned power directly being transmitted input by intermediate air gap 7, also
A part of power is delivered to defeated by energy storage device through external stator 4, external stator three-phase alternating current winding 4-1, outer air gap 8, center roller 3
Shaft.
Described inner stator three-phase alternating current winding 1-1 magnetic field number of pole-pairs is p1, inside described center roller 3, magnetic field number of pole-pairs is
p2, its relation meets n=p1+p2.
Described inner stator three-phase alternating current winding 1-1 rotational speed of magnetic field ω1, described center roller 3 rotating speed is ω2, described modulation ring
Rotor 2 rotational speed of magnetic field is ω3, then
From above formula, when maintaining modulation rotor 2 rotating speed fixing, that is, internal-combustion engine rotational speed is constant, by changing inner stator 3
Rotational speed of magnetic field can adjust the rotating speed size of center roller 3, realize modulation rotor 2 rotating speed and center roller 3 rotating speed is only mutually
Vertical, that is, internal-combustion engine rotational speed and load speed decouple.
Described inner stator three-phase alternating current winding 1-1 magnetic field electromagnetic torque is t1, described center roller 3 magnetic field electromagnetic torque is
t2, described modulation rotor 2 magnetic field electromagnetic torque is t3, then
From above formula, three's torque conditions each other, and arbitrary torque change all can cause other torques to change, and modulation ring turns
2 torque t3With center roller 3 torque t2Interrelated it is impossible to realize engine torque full decoupled with load torque.It is outer fixed to introduce
After sub- three-phase alternating current winding 4-1, external stator three-phase alternating current winding 4-1 is interlinked with center roller 3 outside halbach permanent magnet 6, produces
Raw electromagnetic torque t4Torque superposition is carried out to center roller 3, thus can obtain center roller 3 synthesis torque: t=t3+t4.
By external stator three-phase alternating current winding 4-1, the torque superposition of center roller 3 is capable of modulating rotor 2 torque
Independent mutually with center roller 3 torque, realize engine torque full decoupled with load torque.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, not
In the case of deviating from the flesh and blood of the present invention, any conspicuously improved, replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (7)
1. a kind of magnetic field modulation type double-rotor machine of employing halbach permanent magnet array is it is characterised in that wrap successively from inside to outside
Include inner stator (1), modulation rotor (2), center roller (3) and external stator (4)；
Described modulation rotor (2), center roller (3) are the cylinder-like structure of one end open, modulation rotor (2) and centre
The outer surface center that one end closed by rotor (3) is respectively provided with input shaft and output shaft, modulation rotor (2) and center roller
(3) the inner surface center of closing one end is provided with groove, and modulation rotor (2) is relative with the opening of center roller (3), modulation
In rotor (2) insertion center roller (3), described inner stator (1) is located at the interior axial location of modulation rotor (2), and two ends are divided
Modulation rotor (2) Tong Guo be supported on, in the intermediate groove of center roller (3) by rolling bearing (5)；
Described external stator (1) is arranged on center roller (3) outside, and two ends are arranged on modulation ring by rolling bearing (5) respectively
On the input shaft of rotor (2), the output shaft of center roller (3)；
Inner stator three-phase alternating current winding (1-1) is wound with described inner stator (1), equipped with interior inside described center roller (3)
Halbach array permanent magnet (3-1), equipped with outer halbach array permanent magnet (3-2) outside described center roller (3), described outer
It is wound with external stator three-phase alternating current winding (4-1) inside stator (4)；
Described inner stator (1), modulation rotor (2), center roller (3) composition in magnetic field modulation type motor；Described center roller
(3), external stator (4) forms outer permagnetic synchronous motor.
2. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
The input shaft of described modulation rotor (2) is connected with internal combustion engine output shaft, and the output shaft of described center roller (3) is electric with birotor
Machine output shaft is connected.
3. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
Described outer halbach array permanent magnet (3-2) and interior halbach array permanent magnet (3-1) are all using tile shape, magnetic field of permanent magnet
The mode that magnetizes adopts two pieces 90 ° of every pole, three pieces 60 ° of every pole or every four pieces 45 ° of pole according to concrete permanent magnet pole logarithm.
4. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
Described modulation rotor (2) is provided with modulation ring (2-1), and described modulation ring (2-1) is by n ferromagnet (2-2) and n epoxy body
(2-1) it is spaced composition, described modulation ring (2-1) magnetic inductive block unit number is n.
5. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
Described inner stator three-phase alternating current winding (1-1) magnetic field number of pole-pairs is p1, inside described center roller (3), magnetic field number of pole-pairs is p2, its
Relation meets n=p1+p2.
6. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
Described inner stator three-phase alternating current winding (1-1) rotational speed of magnetic field ω1, described center roller (3) rotating speed is ω2, described modulation rotor
(2) rotational speed of magnetic field is ω3, then
7. employing halbach permanent magnet array as claimed in claim 1 magnetic field modulation type double-rotor machine it is characterised in that
Inner stator three-phase alternating current winding (1-1) magnetic field electromagnetic torque is t1, described center roller (3) magnetic field electromagnetic torque is t2, described tune
Rotor (2) magnetic field processed electromagnetic torque is t3, then
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|---|---|---|---|
| CN201610817581.7A CN106374701B (en) | 2016-09-12 | 2016-09-12 | A kind of magnetic field modulation type double-rotor machine using Halbach permanent magnet array |
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| CN201610817581.7A CN106374701B (en) | 2016-09-12 | 2016-09-12 | A kind of magnetic field modulation type double-rotor machine using Halbach permanent magnet array |
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| CN106374701B CN106374701B (en) | 2019-08-02 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953493A (en) * | 2017-04-13 | 2017-07-14 | 珠海三吉士健康科技有限公司 | A kind of brushless ac vibrates micro machine |
| CN106961207A (en) * | 2016-01-12 | 2017-07-18 | 亓英军 | Electromagnetic speed variator |
| CN107332429A (en) * | 2017-07-20 | 2017-11-07 | 湖南大学 | A kind of magnetic force coupling gearing device |
| CN107546955A (en) * | 2017-08-15 | 2018-01-05 | 河海大学 | A kind of compound magnetic gear permanent-magnet speed governor of four-quadrant motor |
| CN108448847A (en) * | 2018-03-21 | 2018-08-24 | 重庆大学 | A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system |
| CN109391056A (en) * | 2017-08-07 | 2019-02-26 | 三菱重工业株式会社 | The manufacturing method of axial gap electric motor and rotor |
| RU2711238C1 (en) * | 2019-03-21 | 2020-01-15 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" | Synchronous generator with three-loop magnetic system |
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| GB2586329A (en) * | 2019-05-31 | 2021-02-17 | Magnix Usa Inc | High-torque electric motor assembly |
| EP3923457A4 (en) * | 2019-02-07 | 2022-03-23 | Panasonic Intellectual Property Management Co., Ltd. | Magnetic geared motor |
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| CN106961207A (en) * | 2016-01-12 | 2017-07-18 | 亓英军 | Electromagnetic speed variator |
| CN106953493A (en) * | 2017-04-13 | 2017-07-14 | 珠海三吉士健康科技有限公司 | A kind of brushless ac vibrates micro machine |
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| CN109391056A (en) * | 2017-08-07 | 2019-02-26 | 三菱重工业株式会社 | The manufacturing method of axial gap electric motor and rotor |
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| CN107546955A (en) * | 2017-08-15 | 2018-01-05 | 河海大学 | A kind of compound magnetic gear permanent-magnet speed governor of four-quadrant motor |
| CN107546955B (en) * | 2017-08-15 | 2019-08-13 | 河海大学 | A kind of compound magnetic gear permanent-magnet speed governor of four-quadrant motor |
| CN108448847A (en) * | 2018-03-21 | 2018-08-24 | 重庆大学 | A kind of brushless bimorph transducer-double-rotor machine of radial magnetic field modulation system |
| EP3923457A4 (en) * | 2019-02-07 | 2022-03-23 | Panasonic Intellectual Property Management Co., Ltd. | Magnetic geared motor |
| RU2711238C1 (en) * | 2019-03-21 | 2020-01-15 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" | Synchronous generator with three-loop magnetic system |
| GB2586329A (en) * | 2019-05-31 | 2021-02-17 | Magnix Usa Inc | High-torque electric motor assembly |
| GB2586329B (en) * | 2019-05-31 | 2022-04-13 | Magnix Usa Inc | High-torque electric motor assembly |
| GB2616525A (en) * | 2019-05-31 | 2023-09-13 | Magnix Usa Inc | High-torque electric motor assembly |
| GB2616525B (en) * | 2019-05-31 | 2024-01-31 | Magnix Usa Inc | High-torque electric motor assembly |
| CN112217297A (en) * | 2020-09-28 | 2021-01-12 | 上海吉亿电机有限公司 | Tractor for elevator without machine room |
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