CN107196474A - A kind of five phase disc type amorphous magnetoes - Google Patents
A kind of five phase disc type amorphous magnetoes Download PDFInfo
- Publication number
- CN107196474A CN107196474A CN201710438573.6A CN201710438573A CN107196474A CN 107196474 A CN107196474 A CN 107196474A CN 201710438573 A CN201710438573 A CN 201710438573A CN 107196474 A CN107196474 A CN 107196474A
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- China
- Prior art keywords
- stator
- rotor
- support frame
- core support
- stator core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of five phases disc type amorphous magneto, stator core support frame is arranged on rotor shaft periphery, stator core support frame is fixedly connected with casing, stator and rotor are sequentially provided with from inside to outside in the both sides of the axial direction of stator core support frame, stator is fixedly connected with stator core support frame, rotor is arranged on rotor shaft by bearing, there is space between stator and rotor, rotor shaft and stator, rotor and stator core support frame are coaxial, stator and rotor are round table-like disk, the diameter in the outside of stator and rotor is small, gradually increase to stator core support frame orient diameter；The circumferential of stator core support frame is provided with water-cooling channel, is provided with casing in the circumferential outside of stator core support frame, casing is fixedly connected with stator core support frame.The present invention has can reduce phase voltage and phase current under high reliability and fault-tolerance, Same Efficieney, realize high-power output, while effectively reducing motor volume, increase output torque.
Description
Technical field
The invention belongs to design of electrical motor and manufacturing technology field, more particularly to a kind of five phases disc type amorphous magneto.
Background technology
In recent years, in face of increasingly serious environmental pollution and energy shortage problem, country has put into effect a series of policies and method
Advise to improve energy-conservation row of horizontal, reach that Resources for construction is friendly, environment conservation-minded society purpose.In industrial circle, it is desirable to electricity
Machine has higher efficiency and power density.
Conventional motors use three-phase and radial structure mostly, and axial permanent magnetic motor is because its axial dimension is short, compact conformation,
Have the advantages that higher torque, power density and superior dynamic property obtain increasing concern in recent years.With three-phase
Motor is compared, and polyphase machine has many Inherent advantages：Increase overall in the case where ensureing that every phase power bearing ability is constant
Power, with high reliability and fault-tolerance, when a phase or a few phases open circuit, can make electricity by taking corresponding control strategy
Machine output torque remains to meet current working, therefore multiphase axial permanent magnetic motor is particularly suitable for application to electric vehicle, aviation boat
My god, flywheel energy storage system and other require the occasion of high torque density and spaces compact.Simultaneously in low-pressure high-power occasion, if adopting
Use three phase electric machine drive system, electric power system necessarily high-voltage great-current, this power device grade to drive system is proposed
Very big challenge, not only increasing cost also reduces system reliability.Power device running of pumps in series parallel connection is generally used in practical application,
But this necessarily causes device to be pressed or equal flow problem.Because the polyphase machine number of phases increases, machine phase voltages and phase under Same Efficieney
Electric current reduces, therefore multiphase axial permanent magnetic motor is also the effective ways for solving low-pressure high-power.
Wide variety of stator core material is non-oriented silicon steel sheet in current motor, but the loss of electric machine is in magnetic induction intensity
Can seriously it increase during higher or higher frequency, the further raising of limiting motor power density.Amorphous alloy material magnetic conductivity, electricity
Resistance rate is high compared with silicon steel sheet, and saturation flux, coercivity, eddy current effect are small compared with silicon steel sheet, if non-crystaline amorphous metal is applied into magneto
Especially in high-speed high frequency motor, iron loss will be effectively reduced, power of motor density is further improved.
Compared to silicon steel sheet, amorphous alloy material is crisp and thin, and processing and manufacturing or mounting technology difficulty are big, and excessive machinery should
Power can substantially reduce the magnetic conductivity of amorphous alloy material, it is extremely difficult to be processed into molded stator, strongly limit the development of amorphous motor.
The content of the invention
Goal of the invention：The present invention the problem of exist for prior art there is provided a kind of reliability it is high, big work(can be realized
Five phase disc type amorphous magnetoes of rate output.
Technical scheme：The invention provides a kind of five phases disc type amorphous magneto, including rotor shaft, rotor, stator,
Stator core support frame, casing and water-cooling channel, wherein, stator core support frame is arranged on rotor shaft periphery, stator core
Support frame is fixedly connected with casing, and stator is sequentially provided with from inside to outside in the both sides of the axial direction of the stator core support frame
And rotor, the stator is fixedly connected with stator core support frame, and the rotor is arranged on rotor shaft by bearing, described
There is space between stator and rotor, rotor shaft and stator, rotor and stator core support frame are coaxial, the stator and rotor
It is round table-like disk, the diameter in the outside of the stator and rotor is small, gradually increases to stator core support frame orient diameter
Greatly；The circumferential of the stator core support frame is provided with water-cooling channel, is provided with the circumferential outside of the stator core support frame
Casing, the casing is fixedly connected with stator core support frame.
Further, in addition to heat dissipation copper pipe, on the housing provided with heat dissipation copper pipe, the heat dissipation copper pipe and the stator
It is connected.
Further, the space between the stator and rotor is 3~5mm.
Further, the rotor includes rotor back iron and rotor permanent magnet, and the rotor permanent magnet is attached to rotor back iron
Inner surface, wherein rotor permanent magnet include many sub- rotor permanent magnets.
Further, the rotor permanent magnet uses NdFeB material.Neodymium iron boron has pole as one kind of rare earth permanent-magnetic material
High magnetic energy product and coercivity, so the mechanical performance of the rotor permanent magnet made using NdFeB material is more preferably, it is more durable,
Conductibility is also more preferable.
Further, the rotor permanent magnet uses Halbach (Halbach array, the hereinafter referred Halbach) side of magnetizing
Formula, is uniformly distributed per side including 16 pieces of sub- rotor permanent magnets along rotor back iron inboard disc, per the adjacent four blocks of sub- rotors in side forever
Magnet constitutes a magnetic pole, and per 16 pieces of side, sub- rotor permanent magnet constitutes relative in four alternate magnetic poles, left and right sides rotor
The pole polarity of rotor permanent magnet is identical, and rotor permanent magnet flow direction is vertical with permanent magnet surfaces, and flow direction is existing
Axial component also has radial component.
Further, the rotor back iron uses magnetic conduction steel.The cost performance of so whole equipment is higher.
Further, the stator includes stator core, stator tooth, stator slot and the phase winding of stator five, the stator core
Outside be provided with multiple stator tooths, formed between the adjacent stator tooth of each two be wound with stator slot, the stator tooth it is fixed
Sub five phase windings.
Further, the phase winding of stator five uses cydariform concentratred winding structure.It can be reduced using fractional-slot concentratred winding
End copper consumption and then reduce copper loss, and motor stator slot number is few, groove utilization rate is improved, cogging torque reduction, weak magnetic ability and
Fault-tolerant ability strengthens, and the wire insertion technology of concentratred winding simplifies in addition, can use automatic winding, raise labour productivity.
Further, the stator core uses amorphous alloy material, and stator core support frame material is aluminium, respectively with left and right
Both sides amorphous alloy stator is unshakable in one's determination to be connected by being interference fitted.
Further, the angular range between the side of the stator and rotor and rotor shaft normal direction is between 0 ° and 90 °；Together
The stator disk outer surface of side and the opposing parallel setting of rotor discs inner surface.
Operation principle：The present invention can significantly reduce processing and manufacturing cost by using truncated cone-shaped stator and rotor sructure, improve non-
Brilliant stock utilization, meanwhile, disc type electric machine is fixed in radial direction radius one, and torque is directly proportional to total permanent magnet effective surface area, cone
Shape magnetic field can increase permanent magnet effective surface area under the premise of radial direction radius is not increased, and improve motor form factor and increase is exported
Torque, while can reduce radical length and integrated motor volume as far as possible under the premise of permanent magnet effective surface area needed for ensureing,
Suitable for the extremely limited application scenario in space, such as electric vehicle, electric tool, fluid pump.
Beneficial effect：Compared with prior art, the present invention has advantages below：
1. the advantage of the five phase disc-type permanent magnet motor combination disc type electric machines and polyphase machine shown in the present invention, with highly reliable
It can reduce phase voltage and phase current under property and fault-tolerance, Same Efficieney, realize high-power output；
2. being significantly reduced motor iron loss using amorphous alloy stator, electric efficiency and power density are improved；
3. use truncated cone-shaped tray type structure, it is possible to increase permanent magnet effective surface area, reduction motor volume, increase output turn
Square, it is adaptable to the limited occasion in space；
4. using new heat pipe cooling means with the cold mixing radiating mode being combined of air-cooled, liquid, enhancing motor stator dissipates
Heat energy power, and then improve motor dynamics runnability.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is overall structure radial cutaway view of the invention；
Fig. 3 is unilateral rotor permanent magnet structural representation；
Fig. 4 is the magnetizing direction and pole arrangement schematic diagram (a pair of pole) of unilateral rotor permanent magnet；
Fig. 5 is unilateral stator core structure schematic diagram；
Fig. 6 is that amorphous alloy material fabricates schematic flow sheet；
Fig. 7 is the unilateral phase winding connection diagram of stator five (by taking A phases as an example).
Embodiment
The present invention is done below in conjunction with the accompanying drawings and further explained.
As shown in Fig. 1~2, a kind of five phases disc type amorphous magneto of the invention, including rotor shaft 1, the left and right sides
Rotor back iron 2, sub- rotor permanent magnet 3, left and right sides stator core 4, the phase winding 5 of left and right sides stator five, stator core support
Frame 6, casing 7, water-cooling channel 8, heat dissipation copper pipe 9；Wherein, stator core support frame 6 is arranged on the periphery of rotor shaft 1, stator
Core support frame 6 is fixedly connected with casing 7, and casing 7 is fixed on the ground by support, the axial direction side of stator core support frame 6
To both sides be sequentially provided with stator and rotor from inside to outside, stator is fixedly connected with stator core support frame 6, and rotor passes through bearing
It is arranged on rotor shaft 1.Post what is be made up of 16 pieces of sub- rotor permanent magnets 3 in the inboard disc surface of left and right sides rotor back iron 2
Rotor permanent magnet, the outboard disc of left and right sides stator core 4 is provided with ten stator tooths 10 and stator slot 11, stator tooth 10 and set
There is the phase winding 5 of stator five, the inside of stator core support frame 6 is provided with water-cooling channel 8, heat, the surface of casing 7 are taken away by current
Provided with heat dissipation copper pipe 9, heat dissipation copper pipe 9 is connected with stator core 4, so using copper high thermal conductivity coefficient, by with air from
Right convection current is radiated.
Wherein, as shown in figure 3, rotor includes left and right sides rotor back iron 2 and Surface Mount in rotor back iron inboard rotor permanent magnetism
Body, rotor is arranged on rotor shaft 1 by bearing, can at the same speed be rotated with rotor shaft 1.As shown in figure 4, θ is circumferential angle
Position, N is magnetic pole N poles, and S is adjacent magnetic pole S poles, and left and right sides rotor permanent magnet is magnetized mode, four using quadrupole Halbach
The pole Halbach modes of magnetizing refer in particular to the motor provided with four magnetic poles, are magnetized mode using Halbach.Per the sub- rotor in 16 blocks of side
Permanent magnet 3 is uniformly distributed along the inboard disc of rotor back iron 2, and per side, adjacent four pieces of sub- rotor permanent magnets 3 constitute a magnetic pole, per side
16 pieces of sub- rotor permanent magnets 3 constitute four alternate magnetic poles, and the relative pole polarity in the left and right sides is identical, and left and right sides rotor is forever
Magnet 3 and is magnetized mode using the NdFeB material of high energy product using Halbach.As shown in figure 5, stator includes left and right two
Side stator core 4 and five phase windings 5 being wound on stator tooth 10, stator, stator core support frame 6 and casing 7 are connected firmly one
Rise.Rotor is respectively equipped with the outside of stator, space, rotor shaft 1 and stator, rotor and stator iron are left between stator and rotor
Heart support frame 6 is coaxial.Left and right sides rotor back iron 2 uses magnetic conduction steel, and bearing uses magneto bearing.Left and right sides stator core
4 use amorphous alloy material.The opposing parallel placement of left and right sides stator and rotor discs surface, leaves space, often between the two
Side rotor may be separately formed electromagnetic coupled, and the left and right sides can realize that electromagnetism is independent.
As shown in fig. 6, non-crystaline amorphous metal stator core 4 process when first wound using non-crystaline amorphous metal lamination 12, cut again add
Work can reduce difficulty of processing into the mode of stator core, improve motor performance.
As shown in fig. 7, the phase winding 5 of left and right sides stator five uses cydariform concentratred winding structure, stator core is wrapped in
Teeth portion 10, five are mutually represented with A, B, C, D, E respectively, numeral 1,2,3 ..., 10 represent grooves numbering, per phase winding by two coils
Composition, is connected with parallel form, in figure by taking A phase windings as an example, and wherein A+ represents electric current and flows into end, and A- represents electric current outflow end.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of five phases disc type amorphous magneto, it is characterised in that：Including rotor shaft, rotor, stator, stator core support
Frame, casing and water-cooling channel, wherein, stator core support frame is arranged on rotor shaft periphery, stator core support frame and casing
It is fixedly connected, stator and rotor is sequentially provided with from inside to outside in the both sides of the axial direction of the stator core support frame, it is described
Stator is fixedly connected with stator core support frame, and the rotor is arranged on rotor shaft by bearing, the stator and rotor
Between there is space, rotor shaft and stator, rotor and stator core support frame are coaxial, and the stator and rotor are round table-like
Disk, the diameter in the outside of the stator and rotor is small, gradually increases to stator core support frame orient diameter；The stator
The circumferential of core support frame is provided with water-cooling channel, and casing, the machine are provided with the circumferential outside of the stator core support frame
Shell is fixedly connected with stator core support frame.
2. five phases disc type amorphous magneto according to claim 1, it is characterised in that：Also include heat dissipation copper pipe, in institute
Casing is stated provided with heat dissipation copper pipe, the heat dissipation copper pipe is connected with the stator.
3. five phases disc type amorphous magneto according to claim 1, it is characterised in that：Between the stator and rotor
Space is 3~5mm.
4. five phases disc type amorphous magneto according to claim 1, it is characterised in that：The rotor includes rotor back iron
And rotor permanent magnet, the rotor permanent magnet is attached to the inner surface of rotor back iron, and wherein rotor permanent magnet includes many sub- rotors
Permanent magnet.
5. five phases disc type amorphous magneto according to claim 4, it is characterised in that：The rotor permanent magnet uses neodymium
Iron boron material.
6. five phases disc type amorphous magneto according to claim 4, it is characterised in that：The rotor permanent magnet is used
Halbach magnetizes mode, is uniformly distributed per side including 16 pieces of sub- rotor permanent magnets along rotor back iron inboard disc, and often side is adjacent
Four pieces of sub- rotor permanent magnets constitute a magnetic pole, and per 16 pieces of side, sub- rotor permanent magnet constitutes four alternate magnetic poles, the left and right sides
The pole polarity of relative rotor permanent magnet is identical in rotor, and rotor permanent magnet flow direction is vertical with permanent magnet surfaces,
The existing axial component of flow direction also has radial component.
7. five phases disc type amorphous magneto according to claim 4, it is characterised in that：The rotor back iron uses magnetic conduction
Steel.
8. five phases disc type amorphous magneto according to claim 1, it is characterised in that：The stator includes stator iron
The heart, stator tooth, stator slot and the phase winding of stator five, the outside of the stator core are provided with multiple stator tooths, adjacent in each two
Stator tooth between formed the phase winding of stator five be wound with stator slot, the stator tooth.
9. five phases disc type amorphous magneto according to claim 8, it is characterised in that：The phase winding of stator five is used
Cydariform concentratred winding structure.
10. five phases disc type amorphous magneto according to claim 1, it is characterised in that：The side of the stator and rotor
Angular range between face and rotor shaft normal direction is between 0 ° and 90 °；In the stator disk outer surface of the same side and rotor discs
Surface is opposing parallel to be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438573.6A CN107196474A (en) | 2017-06-12 | 2017-06-12 | A kind of five phase disc type amorphous magnetoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710438573.6A CN107196474A (en) | 2017-06-12 | 2017-06-12 | A kind of five phase disc type amorphous magnetoes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107196474A true CN107196474A (en) | 2017-09-22 |
Family
ID=59876555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710438573.6A Pending CN107196474A (en) | 2017-06-12 | 2017-06-12 | A kind of five phase disc type amorphous magnetoes |
Country Status (1)
| Country | Link |
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| CN (1) | CN107196474A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492709A (en) * | 2019-08-16 | 2019-11-22 | 北京理工大学 | A kind of efficiently double three-dimensional air gap permanent magnet motors of high power density |
| CN110896253A (en) * | 2019-10-08 | 2020-03-20 | 苏州德能电机股份有限公司 | Quick heat dissipation motor |
| CN112787466A (en) * | 2021-01-29 | 2021-05-11 | 沈阳工业大学 | Novel cooling structure of high-power-density permanent magnet motor |
| CN112953059A (en) * | 2021-03-08 | 2021-06-11 | 华北电力大学 | Amorphous alloy high-speed outer rotor permanent magnet motor |
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| CN102111028A (en) * | 2009-12-28 | 2011-06-29 | 株式会社日立产机*** | Axial gap rotating electrical machine and rotor used therefor |
| CN102315741A (en) * | 2011-08-31 | 2012-01-11 | 东南大学 | Axial permanent magnet motor with modularized amorphous alloy stator |
| CN103248182A (en) * | 2012-02-07 | 2013-08-14 | 株式会社电装 | Axial gap-type rotating motor and vehicle wheel |
| CN105356671A (en) * | 2015-12-07 | 2016-02-24 | 合肥巨一动力***有限公司 | Motor stator heat radiation structure |
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| US5057726A (en) * | 1990-10-10 | 1991-10-15 | Westinghouse Electric Corp. | Structureborne vibration-compensated motor arrangement having back-to-back twin AC motors |
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| CN1160943A (en) * | 1996-01-18 | 1997-10-01 | 有裕株式会社 | Coreless type BLDC motor and method of producing stator assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492709A (en) * | 2019-08-16 | 2019-11-22 | 北京理工大学 | A kind of efficiently double three-dimensional air gap permanent magnet motors of high power density |
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| CN112787466A (en) * | 2021-01-29 | 2021-05-11 | 沈阳工业大学 | Novel cooling structure of high-power-density permanent magnet motor |
| CN112787466B (en) * | 2021-01-29 | 2024-02-09 | 沈阳工业大学 | Novel cooling structure of high-power density permanent magnet motor |
| CN112953059A (en) * | 2021-03-08 | 2021-06-11 | 华北电力大学 | Amorphous alloy high-speed outer rotor permanent magnet motor |
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Application publication date: 20170922 |
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